WO2010139202A1 - 一种动态频谱分配方法和设备 - Google Patents

一种动态频谱分配方法和设备 Download PDF

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Publication number
WO2010139202A1
WO2010139202A1 PCT/CN2010/071052 CN2010071052W WO2010139202A1 WO 2010139202 A1 WO2010139202 A1 WO 2010139202A1 CN 2010071052 W CN2010071052 W CN 2010071052W WO 2010139202 A1 WO2010139202 A1 WO 2010139202A1
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WO
WIPO (PCT)
Prior art keywords
frequency band
communication device
negotiated
request
spectrum
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Application number
PCT/CN2010/071052
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English (en)
French (fr)
Inventor
王海光
冯淑兰
刘劲楠
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2010139202A1 publication Critical patent/WO2010139202A1/zh
Priority to US13/305,382 priority Critical patent/US8626220B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/14Spectrum sharing arrangements between different networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a dynamic spectrum allocation method and device.
  • Dynamic spectrum allocation means The dynamic spectrum to be allocated does not belong to a specific device, that is, the user of the dynamic spectrum can be constantly changing. When a communication device no longer uses the dynamic spectrum, the spectrum is allocated to other devices. Different devices in the location may use the same frequency band to cause interference, resulting in lower communication quality. Therefore, how to properly and dynamically allocate these frequency usage rights and reduce interference between devices becomes a problem.
  • the prior art proposes a dynamic spectrum allocation method. This method creates a common control channel for each device participating in the frequency allocation. Devices that need to use dynamic spectrum resources can solve the problem of using related resources through negotiation.
  • a device can obtain the right to use the band by detecting whether a band is idle. After obtaining the right to use the band, the band can be marked as a non-idle band.
  • Other devices can detect the device and the non-idle frequency bands it is using, and negotiate with the device through a common control channel to request access to the band.
  • the prior art has at least the following drawbacks: Before a frequency communication agreement is negotiated, a communication device needs to detect the usage of the surrounding dynamic frequency resource resources and the status of the devices using the resources, and grasp the interference situation of the devices using the resources. This will increase the frequency negotiation complexity of the communication device. Especially with the increase of users participating in spectrum allocation and the increase of interference, the difficulty of frequency negotiation and allocation will further increase. Summary of the invention
  • Embodiments of the present invention provide a dynamic spectrum allocation method and device, which reduce the complexity of dynamic spectrum allocation.
  • a dynamic spectrum allocation method including:
  • a usage license for the interference related device is obtained, the usage permission being a response to the spectrum usage request.
  • a dynamic frequency allocation method including: acquiring a spectrum usage request, where the spectrum usage request includes information of a negotiated frequency band; and using time and negotiation according to the currently used negotiation frequency band The bandwidth of the band determines whether the spectrum usage request is accepted;
  • a license is sent when accepting the spectrum usage request.
  • a dynamic spectrum allocation device which includes:
  • a searching module configured to find a non-idle frequency band within the coverage of the communication device according to the database information; and a selecting module, configured to select one frequency band from the non-idle frequency band as the negotiation frequency band, and send the frequency spectrum to the interference related device that uses the negotiated frequency band Use request
  • a license receiving module configured to acquire a use permission of the interference related device, where the use permission is a response to the frequency usage request.
  • a communication device including:
  • a request receiving module configured to acquire a spectrum usage request, where the spectrum usage request includes information of a negotiation frequency segment;
  • the embodiment of the present invention has the following advantages: selecting a non-idle frequency band that has been used according to the database information, and negotiating with the interference-related device using the frequency band to obtain the use right of the frequency band, which can effectively reduce The complexity of dynamic spectrum allocation and the implementation process is simple.
  • FIG. 1 is a schematic diagram of a dynamic spectrum allocation method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic diagram of a dynamic spectrum allocation method according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of Embodiment 3 of the present invention.
  • FIG. 4 is a schematic structural diagram of a communication management system according to Embodiment 3 of the present invention.
  • FIG. 5 is a schematic diagram of coverage and interference range of a communication device according to Embodiment 3 of the present invention
  • FIG. 6 is a schematic diagram of an interference related device of a communication device according to Embodiment 3 of the present invention
  • FIG. 7 is a fourth embodiment of the present invention
  • FIG. 8 is a schematic diagram of a dynamic frequency distribution system according to Embodiment 5 of the present invention
  • FIG. 9 is a dynamic frequency assignment according to Embodiment 6 of the present invention
  • FIG. 10 is a schematic structural diagram of a management device according to Embodiment 6 of the present invention.
  • FIG. 11 is a schematic structural diagram of a communication device according to Embodiment 6 of the present invention.
  • FIG. 12 is a schematic structural diagram of a communication device according to Embodiment 7 of the present invention.
  • FIG. 1 is a schematic diagram of a dynamic spectrum allocation method according to Embodiment 1 of the present invention, where the method may include:
  • S12 Select a frequency band from the non-idle frequency band as the negotiation frequency band, and send a spectrum usage request to the interference related device that uses the negotiation frequency band;
  • a non-idle frequency band that has been used is selected according to the database information, and the interference-related device that uses the frequency band is negotiated to obtain the use right of the frequency band, which can effectively reduce the complexity of dynamic spectrum allocation, and the implementation process is simple.
  • the method may further include: after obtaining the rejection message of the interference related device, reselecting a frequency band from the non-idle frequency band as a negotiation frequency band, and using the interference related device that uses the reselected negotiation frequency band Send a spectrum usage request.
  • the negotiation with the interference-related device is unsuccessful, the negotiation band can be re-selected for negotiation, and the process of the dynamic spectrum allocation can be stopped until all the negotiation fails.
  • the spectrum allocation method can be performed by either a management device or a communication device.
  • the management device can be connected to the communication device through the network, and perform spectrum negotiation and management with the communication device.
  • the management device may include a database for storing information about the communication device, such as the identity of the communication device, the geographic location, the coverage, and the channel usage within the range of the i3 ⁇ 4 cover, the spectrum range in which the communication device is being used, and the transmission power of the communication device.
  • Various related information such as the antenna type of the communication device, the receiving sensitivity of the communication device, and the interference range of the communication device are not described in detail herein.
  • the communication device can be a centralized or distributed communication device. In a common application, the communication device can be a base station.
  • the management device may acquire a spectrum allocation request of the communication device before performing step SI1.
  • the spectrum allocation request may be provided by a communication device for requesting the management device to obtain a spectrum resource.
  • the management device may continue to perform spectrum allocation negotiation.
  • the spectrum allocation success message may be provided to the communication device, and the negotiation frequency band is allocated to the communication. device. Further, the management device can also update information about the negotiated frequency bands within its database.
  • the communication device may acquire the database information before performing step S11. After obtaining the database information, the communication device may continue to perform spectrum allocation negotiation, and after obtaining the use permission of the interference related device, the communication device provides a spectrum allocation success message to the management device. After the management device obtains the spectrum allocation success message, the negotiation frequency band may be allocated to the communication device, and the communication device accepts the negotiation frequency band allocated by the management device. Further, the communication device may further send a lock request to the management device to lock the negotiated frequency band to prevent other communication devices from participating in the negotiation of the frequency band, thereby improving the success rate of the spectrum allocation of the communication device.
  • FIG. 2 is a schematic diagram of a dynamic spectrum allocation method according to Embodiment 2 of the present invention, where the method may include:
  • S21 Obtain a spectrum usage request, where the spectrum usage request includes information of a negotiated frequency band;
  • S22 determining, according to a currently used usage time of the negotiated frequency band and a negotiated frequency band width, whether to accept the spectrum usage request;
  • the communication device may determine whether to accept the frequency usage request according to the usage time of the negotiated frequency band and the negotiated frequency band width used before.
  • the communication device uses the negotiated frequency band for a certain period of time, the other device needs to be allowed.
  • this frequency band a communication device can avoid a long-term occupation of a spectrum resource, making the spectrum allocation fair and reasonable, and meeting the spectrum usage requirements of other communication devices.
  • the communication device after the communication device obtains the frequency usage request of the other device, according to its own The time of use of the spectrum resource and the bandwidth of the band during the period of time determine whether or not to accept the request for use of the frequency, and may send a license to allow other devices to use the negotiated band that they are using.
  • the communication device decides whether to accept the frequency usage request of other devices, it needs to comprehensively consider its use time and frequency band width for the frequency band resources. For example, let the communication device currently use the negotiated frequency band width; the length of the negotiated frequency band used is ⁇ , and the formula (/; ( ⁇ value, where X and y are greater than 0) can be calculated. / ⁇ (AT) When the value of y is greater than a certain threshold of 73 ⁇ 4, the communication device accepts the spectrum usage request of other devices.
  • the communication device may determine whether the product of the used time of the negotiated frequency band and the negotiated frequency band width currently used is greater than a threshold; when the product of the negotiated frequency band usage time and the negotiated frequency band width is greater than the When the value is wide, the spectrum usage request is accepted. It is assumed that the frequency band currently used by the communication device is still /;, the time length of the used band is still ⁇ , and if / ⁇ ⁇ 73 ⁇ 4, the communication device accepts the spectrum usage request of other devices. That is, the communication device needs to allow other devices to use their own negotiated band in use at this time.
  • the threshold 73 ⁇ 4 may be set by a communication industry related institution such as the FCC (Federal Communication Commission), or may be set by the user according to actual conditions.
  • the communication device may further determine whether to accept the frequency usage request according to the usage time of the negotiated frequency band currently used and the negotiated frequency band width. For example, when the usage time ⁇ ⁇ , 1, and the negotiated band width / i ⁇ 1, the communication device accepts the frequency usage request; when ⁇ and /; at least one is less than a predetermined threshold or, the communication device may not accept The spectrum usage request.
  • the specific implementation method is not limited in this embodiment.
  • the communication device After accepting the spectrum usage request and transmitting the use permission, the communication device can stop using the negotiation frequency band to prevent interference with other devices.
  • the communication device can be a fixed or mobile type device.
  • FIG. 3 is a schematic flowchart of a dynamic spectrum allocation method according to Embodiment 3 of the present invention, where the method may include: S31: The communication device sends a spectrum allocation request to the management device.
  • the communication device When the communication device needs to use the spectrum resource, the communication device sends a spectrum allocation request to the management device, and can notify the management device of the bandwidth to be allocated while transmitting the frequency allocation request.
  • 4 is a schematic structural diagram of a communication management system according to Embodiment 3 of the present invention.
  • the management device 41 can be connected to at least one communication device 42, which can be connected to a database device 43.
  • the management device 41 can query the database device 43 to obtain the information it needs, and the communication devices 42 can be connected through a network.
  • S32 The management device determines, according to the database information, whether there is a free frequency band in the coverage of the communication device, and if yes, executes S33; if not, executes S34.
  • the management device looks up the database information to find out whether there is a free frequency band within the coverage of the communication device that initiated the request.
  • the management device may find a channel frequency band set within the coverage of the communication device and an interference related device of the communication device according to the database information. If there is at least one interference related device that is using a certain frequency band within the coverage of the communication device, the frequency band is a non-idle frequency band for the communication device; if a certain frequency band within the coverage of the communication device is not used by the communication device If the interference related device is used, the frequency band is an idle frequency band for the communication device. It should be noted that the idle frequency band is defined according to the interference situation of the communication device.
  • the frequency band is still The idle frequency band of the communication device. If the other device using the frequency band interferes with the communication device by more than the certain threshold, the frequency band is a non-idle frequency band of the communication device.
  • Different communication devices may have different definitions of whether the spectrum resource is an idle resource, which is not limited herein.
  • An interference related device of a communication device is a device that interferes with communication with the communication device.
  • Interference-related devices can be defined based on the degree of interference with the communication device. When the interference of the other device to the communication device is greater than a certain threshold, the other device is the interference related device of the communication device.
  • Interference-related devices How to define can be determined according to the specific application. The key is to determine whether the interference signal of one device will affect the work of another device.
  • FIG. 5 is a schematic diagram of coverage and interference range of a communication device according to Embodiment 3 of the present invention.
  • the communication device 51 may be a base station, and its surrounding area is a communication coverage area 52.
  • the service device in the range can access the communication network through the communication device 51, and the service device outside the coverage area 52 cannot communicate.
  • the device 51 is connected to the communication network.
  • the signal power of the communication device 51 must be greater than a certain threshold value P1 so that its service device can clearly receive its signal.
  • the service device can be a terminal or a user device.
  • the interference range 53 of the communication device 51 is also shown in Fig. 5. Outside the interference range 53, the signal power of the communication device 51 is less than a threshold value P2 to avoid interference with other devices.
  • the gate P ⁇ value P1 is greater than the gate P ⁇ value P2; and the interference range 53 is typically greater than the coverage area 52.
  • FIG. 6 is a schematic diagram of an interference related device of a communication device according to Embodiment 3 of the present invention.
  • communication device 61 has coverage 62 and interference range 63; communication device 64 has coverage 65 and interference range 66; communication device 67 has coverage 68 and interference range 69. It can be seen that the coverage 62 of the communication device 61 overlaps with the interference range 66 of the communication device 64, and the communication device 61 and the communication device 64 are each other's interference-related devices.
  • the coverage 62 of the communication device 61 does not overlap with the interference range 69 of the communication device 67, and the interference range 63 of the communication device 61 does not overlap with the coverage 68 of the communication device 67, and the communication device 61 and the communication device 67 are not the other party. Interference related equipment.
  • interference-related equipment can also take into account the type of communication equipment. Under normal circumstances, the similar type is small. Different types of devices usually do not consider the problem of mutual interference avoidance, so the interference is large. If the coverage of one communication device overlaps with the interference range or even the coverage of another communication device, but the two communication devices are similar devices, the mutual interference is small, and does not affect the other party's work, then two The communication devices do not constitute each other's interference related devices. Generally, the communication interference process occurs between different types of devices, but interference between similar devices may also exist, which is not limited herein.
  • S33 The management device selects a frequency band from the idle frequency band to allocate to the communication device.
  • the idle frequency band can be selected for the communication device according to the bandwidth that needs to be allocated by the communication device.
  • the management device can find a plurality of free frequency bands from the database, and select a frequency band having a bandwidth greater than the bandwidth to be allocated and allocate to the communication device. It can be understood that when there is only one idle frequency band, the communication device can determine the unique idle frequency band as the frequency band to be allocated.
  • a plurality of channels C1 may be included in the selected frequency band, and each channel C1 may include at least one minimum subchannel C2. If there are a plurality of minimum subchannels C2 in one channel C1, the plurality of minimum subchannels C2 may be continuous or discontinuous.
  • the minimum subchannel described above may be the smallest unit of dynamic frequency allocation.
  • the selected free frequency band may have been used by multiple other devices that do not interfere with the normal operation of the communication device.
  • the same type of device of a plurality of communication devices is also using the frequency band, interference with each other may be small, and the communication device may use the idle frequency band in a manner of time division multiplexing with the same type of device.
  • the number of non-interfering devices using the same frequency band by time division multiplexing can be limited. For example, up to three non-interfering communication devices can use one frequency band by time division multiplexing. If the number of devices using the frequency band is greater than three, the management device may not allocate this frequency band to devices that continue to apply for the frequency band.
  • the management device can allocate the idle frequency band with the lowest usage frequency or the minimum number of used devices to the communication device when selecting the idle frequency band. For example, if a free frequency band is not used by any device, the management device may preferably assign this frequency band to the communication device.
  • the management device After the management device allocates the selected idle frequency band to the communication device, the usage record of the free frequency band in the communication device or its corresponding coverage within the database may be updated.
  • the management device may notify the communication device of information such as a frequency range and usage of a free frequency band to which the communication device is successfully allocated for spectrum allocation.
  • the management device finds a non-idle frequency band within the coverage of the communication device according to the database information. When there is no free frequency band within the coverage of the communication device, the management device can find a non-idle frequency band within the coverage of the communication device. As described in the previous embodiments, the non-idle frequency band within the coverage of the communication device has been used by the interference related device of at least one communication device. It can be understood that there may be more than one non-idle frequency band that satisfies the condition.
  • the management device selects a frequency band from the non-idle frequency band as the negotiation frequency band, and sends a spectrum usage request to the interference related device that uses the negotiated frequency band.
  • the management device may directly determine the non-idle frequency band as the negotiation frequency band; when there are multiple non-idle frequency bands, the management device may select one frequency band as the negotiation frequency band, and use the The interference-related device in the negotiated band transmits a spectrum usage request.
  • the management device may acquire, according to the database information, the number of interference-related devices using the non-idle frequency band or the frequency of the non-idle frequency band used by the interference-related device, and select the interference-related device participating in the use to be the least or the lowest frequency of use by the interference-related device.
  • the non-idle frequency band is used as the negotiation band.
  • the negotiated frequency band thus selected is used at a lower frequency, which can increase the probability of negotiation success and shorten the negotiation time.
  • the management device After the management device selects the negotiation frequency band, it sends a frequency usage request to all the interference-related devices that use the selected negotiation frequency band, and requests the other party to allow the spectrum to be allocated to the communication device with the usage requirement.
  • the interference related device determines whether to accept the spectrum usage request of the management device, and returns a message to the management device.
  • the interference-related device determines whether to accept the frequency usage request according to the usage time and the frequency band width of the negotiation frequency band.
  • the interference-related device may determine whether the product of the used time of the negotiated frequency band and the negotiated frequency band width currently used is greater than a threshold; when the product of the negotiated frequency band and the negotiated frequency bandwidth is greater than When the value is described, the frequency usage request is accepted.
  • the threshold can be set according to a specific application.
  • the interference related device replies to the management device after making a decision. If the interference-related device accepts the spectrum usage request, transmitting a usage permission information, allowing the communication device to use the negotiated frequency band; if the interference-related device rejects the spectrum usage request, replying to a rejection message, rejecting the communication device to use It negotiates the frequency band. Further, when the interference related device allows the communication device to use the negotiated frequency band, the use of the negotiated frequency band will be stopped, and interference with the communication device can be prevented.
  • S37 The management device obtains the reply information of the interference related device, determines whether the reply information is the use permission information, and if yes, executes S38; if not, the management device re-executes S35.
  • the management device allocates the negotiated frequency band to the communication device, and outputs a spectrum allocation success message.
  • the management device After obtaining the use permission of the interference related device, the management device allocates the negotiated frequency band to the communication device and updates the database content. Generally, the management device needs to negotiate with a plurality of interference-related devices that use the negotiation frequency band, and after receiving the usage permission sent by the multiple interference-related devices, allocate the negotiation frequency band to the communication device.
  • the content of the management device update database may include: information about the negotiated frequency band and the use of the negotiated frequency band by the communication device.
  • the management device may output a spectrum allocation success message to notify the communication device that the spectrum allocation has been successful, and the management device may also send the spectrum allocation success message to the interference related device.
  • the management device can reselect a frequency band as a negotiated frequency band and negotiate from non-idle frequency bands within the coverage of the communication device.
  • the management device can negotiate multiple non-idle frequency bands in turn. If the previous negotiation is unsuccessful, the negotiation can be continuously re-initiated. In an implementation manner, the management device may record a set of multiple non-idle frequency bands within the coverage of the communication device, and find a frequency band that is the least used by the interference device or has the lowest usage rate of the interfered device, and negotiates successfully. Then, the communication device is allocated a frequency band in which the negotiation is successful, and if the negotiation fails, the frequency band is taken from the set S.
  • the management device may output the spectrum allocation failure information to the communication device.
  • the management device finds the coverage of the communication device according to the spectrum allocation request of the communication device.
  • the idle frequency band is allocated to the communication device. If there is no free frequency band in the i3 ⁇ 4 cover range, a non-idle frequency band can be found and negotiated with other devices using the non-idle frequency band. After obtaining the permission of the other device, The frequency band negotiated successfully is allocated to the communication device, and the communication device is not required to detect the surrounding channel usage, and the implementation scheme is simple, and the P is less complicated by the dynamic frequency allocation.
  • FIG. 7 is a schematic flowchart diagram of another dynamic frequency allocation method according to Embodiment 4 of the present invention, where the method may include:
  • the communication device sends a spectrum allocation request to the management device.
  • the communication device When the communication device needs to use the spectrum resource, the communication device sends a spectrum allocation request to the management device, and can notify the management device of the bandwidth to be allocated while transmitting the frequency allocation request.
  • S72 The management device provides its database information to the communication device.
  • the management device can find information about the communication device in its database and provide information such as channel usage and interference related device conditions within the coverage of the communication device to the communication device.
  • S73 The communication device determines, according to the obtained database information, whether there is a free frequency band in the coverage of the communication device, and if yes, executes S74; if not, executes S76.
  • the communication device can find a set of channel frequency bands within the coverage of the communication device and an interference related device of the communication device according to the database information. If there is at least one interference related device that is using a certain frequency band within the coverage of the communication device, the frequency band is a non-idle frequency band for the communication device; if a certain frequency band within the coverage of the communication device is not used by the communication device If the interference related device is used, the frequency band is an idle frequency band for the communication device.
  • the interference related device reference may be made to the previous embodiment, and details are not described herein again.
  • the communication device selects a frequency band from the idle frequency band as the frequency band to be allocated, and sends a spectrum lock request to the management device.
  • the idle frequency band can be selected according to the bandwidth required by the communication device.
  • the specific selection process can refer to the previous embodiment, and details are not described herein again.
  • the frequency band selected by the communication device can be included A plurality of channels C1, each of the channels C1 may include at least one minimum subchannel C2.
  • the minimum subchannel C2 may be continuous or discontinuous. It can be understood that when only one idle frequency band exists, the communication device can determine the unique idle frequency band as the frequency band to be allocated.
  • the communication device may send a spectrum lock request to the management device, requesting the other party to lock the frequency band to be allocated, and preventing the frequency band to be allocated from being allocated to other devices for use.
  • the management device agrees to allocate the frequency band to be allocated to the communication device, and locks the frequency band to be allocated. If the management device agrees to assign the band to be allocated to the communication device, the band can be locked and the locked band will not be assigned to other communication devices. After the management device receives the spectrum allocation request of the other device, the other device can learn from the management device that the to-be-assigned frequency band has been locked, so that other devices will not participate in the negotiation or allocation of the frequency band, thereby improving the success rate of the spectrum allocation of the communication device. . After the management device locks the spectrum successfully, its database information can be updated, for example, the usage record of the free band in the communication device or its corresponding coverage within the database can be updated. The management device can unlock the band after the data is updated so that other devices can continue to participate in the negotiation and allocation of the band.
  • the communication device can use the allocated frequency band. If the management device does not agree to allocate the frequency band to be allocated to the communication device, it may also feed back a message to the communication device indicating that the spectrum allocation is unsuccessful, and the frequency band cannot be allocated to the communication device.
  • the communication device finds a non-idle frequency band within the coverage of the communication device according to the database information. When there is no idle frequency band in the coverage of the communication device that satisfies the bandwidth requirement of the communication device, it can find the non-idle frequency band within the coverage of the communication device according to the database information. As described in the previous embodiments, the non-idle frequency band within the coverage of the communication device has been used by the interference related device of at least one communication device. It can be understood that there may be multiple non-idle frequency bands that satisfy the condition.
  • the communication device selects a frequency band from the non-idle frequency band as the negotiation frequency band, and sends a frequency band lock request to the management device, requesting to lock the negotiation frequency band to the management device.
  • the communication device may directly determine the non-idle frequency band as the negotiation frequency band; when there are multiple non-idle frequency bands, the communication device may select one frequency band as the negotiation frequency band, And transmitting a spectrum usage request to the interference related device using the negotiated frequency band.
  • the management device may acquire, according to the database information, the number of interference-related devices using the non-idle frequency band or the frequency of the non-idle frequency band used by the interference-related device, and select the interference-related device participating in the use to be the least or the lowest frequency of use by the interference-related device.
  • the non-idle frequency band is used as the negotiation band.
  • the selected frequency band thus selected is used at a lower frequency, which can increase the probability of negotiation success and shorten the negotiation time.
  • the communication device may request to lock the negotiation frequency band, the locked frequency band is not allocated to other devices, and other devices may not participate in the negotiation or allocation of the locked frequency band, so that the communication device can negotiate the frequency band. Success rate.
  • the band lock request sent by the communication device to the management device may specify the device to which the lock is targeted. After the lock is successful, the other device may not lock the device that has been locked by the communication device. For example, if device A wants to use a certain frequency band, it can initiate negotiation with devices B and C that are using the band, and lock the two devices 8 and (. If device D also wants to use the band, it also needs to go to devices B and C. Negotiate and lock device 8 and (.
  • the above implementation can be It effectively prevents other devices from causing interference to devices that are in the process of band negotiation, and improves the efficiency and success rate of band negotiation.
  • the communication device sends a spectrum usage request to the interference related device that uses the negotiated frequency band.
  • the communication device may send a spectrum usage request to the interference related device after the management device locks the negotiation band successfully. If the management device fails to lock the negotiation band, the communication device may reselect a negotiation frequency band and initiate a negotiation process.
  • the frequency band locking may not be successful.
  • other devices may be negotiating the usage rights of the frequency band, and the communication device cannot temporarily negotiate the usage rights of the frequency band.
  • the communication device may reselect a non-idle. The frequency band and initiate the negotiation process.
  • the interference related device determines whether to accept the frequency usage request of the communication device, and returns a message to the communication device.
  • the interference related device may or may not allow the communication device to use its negotiated frequency band.
  • the interference related device may stop using the negotiated frequency band to prevent interference with the communication device.
  • S710 The communication device acquires the reply information of the interference related device, determines whether the reply information is the use permission information, and if yes, executes S711; if not, executes S77 repeatedly.
  • S711 The communication device outputs a spectrum allocation success message to the management device.
  • the communication device needs to negotiate with a plurality of interference-related devices that use the negotiation band. After receiving the use permission sent by the multiple interference-related devices, it indicates that the interference-related devices participating in the negotiation agree to the spectrum allocation.
  • the communication device can output a spectrum allocation success message.
  • the management device releases the lock on the negotiated frequency band, and outputs a success response message.
  • the management device receives the assignment success message of the communication device, and unlocks the negotiated frequency band, so that other devices can participate in the negotiation and distribution of the frequency band.
  • the management device may also update its database information, and the content of the update database may include: information related to the negotiation band and the use of the negotiation band by the communication device.
  • S713 The communication device accepts the negotiated frequency band allocated by the management device.
  • the communication device may receive the output allocation success reply message, so that the management device agrees that the communication device uses the negotiated frequency band, and the communication device can accept the allocation result and start using the negotiated frequency band that the allocation is successful or the negotiation The frequency band is available to other devices.
  • the communication device when there is a rejection message in the reply information of the multiple interference-related devices received by the communication device, it is determined that the at least one interference-related device does not agree that the communication device uses the negotiated frequency band that the communication device is using. The secondary negotiation process failed and the communication device cannot use the negotiated band. At this point, the communication device can reselect a non-idle frequency band and initiate a negotiation process.
  • the communication device in this embodiment can negotiate a plurality of non-idle frequency bands in sequence, if the previous negotiation fails. Gong, can continue to re-initiate negotiations. Specifically, the communication device may record a set of a plurality of non-idle frequency bands within the coverage of the communication device, and find a frequency band that is the least used by the interference device or the lowest used by the interference device to be negotiated from the set, and the communication device is successfully negotiated. The frequency band in which the negotiation is successful is allocated. If the negotiation fails, the band is removed from the set and continues from the set S.
  • the frequency band in which the interference device with the least use or the lowest usage rate of the interfered device is found is negotiated, and until all the frequency bands of the set fail to negotiate, the management device may output the spectrum allocation failure information to the communication device.
  • the frequency band mentioned in the above embodiment may include multiple channels, each channel may include at least one minimum subchannel, and the minimum subchannel may be a minimum unit of dynamic frequency allocation.
  • the communication device finds the idle frequency band within its coverage according to the database information and requests the management device to allocate the idle frequency band for communication. If there is no idle frequency band in the i3 ⁇ 4 cover range, a non-idle frequency band can be found and used. Other devices in the non-idle band negotiated. After obtaining the permission of the other device, the management device is requested to allocate a frequency band for successful negotiation, and the communication device is not required to detect the surrounding channel usage, and the implementation scheme is simple, and P strives for low dynamic frequency. The complexity of the allocation.
  • Embodiment 5 of the present invention also provides a schematic diagram of a dynamic frequency distribution system, which may include: a management device and at least one communication device.
  • the at least one communication device can be connected to the management device through a network, and each of the communication devices can be connected through a network.
  • information exchange between the communication devices or between the communication device and the management device can be performed through a TCP/IP (Transmission Control Protocol/Internet Protocol) protocol.
  • the management device 82 can be connected to a database device 83.
  • the database device 83 can store related information of each communication device 85, such as channel usage within the coverage of each communication device 85. And other information.
  • the management device 82 can obtain the information in the database by querying the database device 83.
  • the communication device 85 can typically be a fixed device or a mobile device, and the communication system can utilize the methods described in the previous embodiments for the allocation of spectrum resources.
  • the communication device that performs the frequency band negotiation connected to the management device may be a frequency
  • the SNME, Spectrum Negotiation and Management Entity 0 is still exemplified by FIG. 8
  • the frequency negotiation management entity 81 performs negotiation and allocation of spectrum with the management device 82
  • the spectrum negotiation management entity 81 allocates spectrum.
  • the communication transceiver device 84 to which it is connected can be notified.
  • the function of the frequency negotiation management entity 81 is to implement the negotiation and allocation of the spectrum.
  • the communication transceiver device 84 can communicate by using the allocated frequency band, and the communication transceiver device 84 can be a base station, and the function thereof.
  • the frequency band transmission and reception information is successfully allocated by the frequency negotiation management entity 81. It can be understood that there may be multiple communication transceiver devices 84 connected to each of the frequency negotiation management entities 81.
  • the spectrum negotiation management entity 81 may be a separate communication device that only undertakes spectrum negotiation and allocation tasks, and may also be integrated with the communication transceiver device 84 in a communication device 85. When the spectrum negotiation management entity 81 and the communication transceiver device 84 are integrated in the communication device 85, the communication device 85 can simultaneously have a function of allocating a spectrum and realizing communication using a frequency band in which the allocation is successful.
  • the communication device segment is in communication with other communication devices 85.
  • Communication device 85 may be a fixed or mobile communication device such as a base station, a relay base station, or the like.
  • FIG. 9 is a schematic structural diagram of a dynamic frequency speech distribution device 90 according to Embodiment 6 of the present invention.
  • the dynamic spectrum allocation device 90 can include:
  • the searching module 91 is configured to find a non-idle frequency band within the coverage of the communication device according to the database information;
  • the selecting module 92 is configured to select a frequency band from the non-idle frequency band as the negotiation frequency band, and send a spectrum usage request to the interference related device that uses the negotiated frequency band;
  • the license receiving module 93 is configured to obtain a use permission of the interference related device, where the use permission is a response to the spectrum use request.
  • the dynamic spectrum allocation device 90 of the present embodiment finds a non-idle frequency band within the coverage of the communication device according to the database information, and initiates negotiation with the interference-related device that uses the non-idle frequency band, so as to obtain non-empty
  • the free frequency band usage right can easily realize dynamic spectrum allocation, which can meet the spectrum usage requirements of communication devices.
  • the selecting module 92 is further configured to: after obtaining the rejection message of the interference-related device, reselect a frequency band from the non-idle frequency band as a negotiation frequency band, and perform interference to the negotiated frequency band using the reselection
  • the related device sends a spectrum usage request.
  • the selection module 92 may reselect the frequency band for negotiation when the spectrum negotiation is unsuccessful until the dynamic spectrum allocation device obtains the required spectrum resources.
  • the dynamic spectrum allocation device may be a management device.
  • FIG. 10 is a schematic structural diagram of a management device 100 according to Embodiment 6 of the present invention. Similar to FIG. 9, the management device 100 may include: a lookup module 101, a selection module 102, and a license receiving module 103, and may further include:
  • the request obtaining module 104 is configured to acquire a spectrum allocation request of the communication device
  • the allocating module 105 is configured to allocate the negotiated frequency band to the communication device after obtaining the use permission of the interference related device.
  • the management device 100 may further include: an updating module, configured to update related information of the negotiated frequency band in the database after obtaining the use permission of the interference related device. Manage equipment and new database information to ensure the accuracy of database information.
  • the dynamic spectrum allocation device may be a communication device
  • FIG. 11 is a schematic structural diagram of a communication device 110 according to Embodiment 6 of the present invention. Similar to FIG. 9, the communication device 110 may include: a search module 111, a selection module 112, and a license receiving module 113, which may further include:
  • the information obtaining module 114 is configured to acquire the database information.
  • the distribution accepting module 115 is configured to accept the negotiated frequency band allocated by the management device after obtaining the use permission of the interference related device.
  • the communication device 110 may include: a locking module, configured to send a lock request to the management device to request to lock the negotiated frequency band. After the negotiation band is locked, other devices The negotiation and allocation of this negotiation band will not be participated, and the success rate of the spectrum allocation of the communication device 110 can be improved.
  • the communication device 110 may be various fixed or mobile communication devices such as a base station and a relay base station.
  • FIG. 12 is a schematic structural diagram of a communication device 120 according to Embodiment 7 of the present invention.
  • the communication device 120 includes:
  • the request receiving module 121 is configured to obtain a spectrum usage request, where the spectrum usage request includes information about a negotiation frequency band;
  • the determining module 122 is configured to determine whether to accept the frequency usage request according to the usage time of the negotiated frequency band currently used and the negotiated frequency band width;
  • the sending module 123 is configured to send a use permission when accepting the frequency usage request.
  • the communication device 120 of the embodiment may obtain the spectrum usage request of the other communication device or the management device, and determine whether to allow the requesting party to use the frequency band according to the usage time and the bandwidth of the negotiation band, so that the communication device may occupy a large number of frequency bands for a long time. Reduce, improve the fairness of frequency allocation to meet the frequency usage requirements of other communication devices.
  • the determining module 122 further includes:
  • a determining unit configured to determine whether a product of the currently used negotiation band and the negotiated band width is greater than a threshold
  • a determining unit configured to accept the frequency usage request when the product of the negotiated frequency band usage time and the negotiated frequency band width is greater than the threshold value.
  • the determining module 122 determines whether the product of the currently used negotiation band and the negotiated band width is greater than a threshold to determine whether the requesting party is allowed to use the spectrum it is using, so that the current communication device is less likely to occupy a large number of frequency bands for a long time. .
  • the use of the negotiated frequency band may be withdrawn to prevent interference with other devices.
  • the communication device 120 can be various fixed or mobile communication devices such as a base station and a medium base station.
  • the dynamic frequency allocation method system and related device of the embodiment can be applied to various types of dynamics. Frequency allocation process.
  • each device in the system can obtain a right to use a certain spectrum resource in a television idle frequency band by negotiating a TV white space (TV White Space).
  • TV White Space TV White Space
  • a device that obtains the right to use dynamic spectrum resources may transfer its usage rights to other devices or share with other devices.
  • Existing measurements indicate that in most areas, existing broadcast TV bands are not fully utilized and multiple idle TV bands can always be found.
  • the dynamic spectrum allocation scheme provided in this embodiment can reasonably allocate these blank channels for the communication device, so that the idle TV band resources can be effectively utilized.
  • the embodiment of the present invention can select a non-idle frequency band that has been used according to the database information, and negotiate with the interference-related device that uses the frequency band to obtain the use right of the frequency band, which can meet the spectrum use requirement of the communication device.
  • the implementation process is simple.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

Abstract

一种动态频谱分配方法和设备,所述方法包括:根据数据库信息找到通信设备覆盖范围内的非空闲频段;从所述非空闲频段中选择一频段作为协商频段,向使用所述协商频段的干扰相关设备发送频谱使用请求;获取所述干扰相关设备的使用许可,所述使用许可是对所述频谱使用请求的响应。上述技术方案可有效为通信设备分配动态频谱资源,且实现过程简单。

Description

一种动态频谱分配方法和设备
技术领域
本发明涉及通信技术领域, 尤其涉及一种动态频谱分配方法和设备。
背景技术
随着通信技术的发展, 无线频谱资源正变得紧缺。 另一方面, 一些频语资 源并没有得到有效利用,如广播电视信道内可能存在一定数量的电视空闲频段
( TV White Space 为了使这些空闲资源得到充分利用, 这些空闲资源可被 分配给有通信需求设备使用。在分配所述空闲频谱的过程中,通常采用动态频 语分配的方式。动态频谱分配意味着待分配的动态频谱不会属于某一特定的设 备, 即该动态频谱的使用者可以不断变化。 当一个通信设备不再使用所述动态 频谱时,该频谱会被分配给其它设备。 由于同一地理位置上的不同的设备可能 会使用相同的频段从而产生干扰,导致通信质量降低, 因此如何合理动态地分 配这些频语使用权并降低设备间的干扰就成为一个问题。
现有技术提出了一种动态频谱分配方法。该方法为参与频语分配的每个设 备创建一个公共控制信道,需要使用动态频谱资源的设备可通过协商解决相关 资源的使用问题。一个设备可通过检测一个频段是否是空闲来获得该频段的使 用权, 在获得该频段的使用权后, 该频段可被标记为非空闲频段。 其它设备可 检测到该设备及其正在使用的非空闲频段,并通过公共控制信道与该设备进行 协商以申请获得该频段的使用权。
现有技术至少存在以下缺陷: 一个通信设备在进行频语分配协商前, 需要 检测其周边动态频语资源的使用情况以及使用这些资源的设备状况,并掌握使 用这些资源的设备对自身的干扰情况, 这会提高通信设备的频语协商复杂度。 特别是随着参与频谱分配的用户的增多和干扰的增大,频语协商和分配的难度 会进一步增加。 发明内容
本发明实施例提供一种动态频谱分配方法和设备,使动态频谱分配的复杂 度降低。
根据本发明的一实施例, 提供一种动态频谱分配方法, 包括:
根据数据库信息找到通信设备覆盖范围内的非空闲频段;
从所述非空闲频段中选择一频段作为协商频段,向使用所述协商频段的干 扰相关设备发送频谱使用请求;
获取所述干扰相关设备的使用许可,所述使用许可是对所述频谱使用请求 的响应。
根据本发明的又一实施例, 提供一种动态频语分配方法, 包括: 获取频谱使用请求, 所述频谱使用请求中包括协商频段的信息; 根据当前使用的所述协商频段的使用时间和协商频段宽度决定是否接受 所述频谱使用请求;
在接受所述频谱使用请求时, 发送使用许可。
根据本发明的又一实施例, 提供一种动态频谱分配设备, 其特征在于, 包 括:
查找模块, 用于根据数据库信息找到通信设备覆盖范围内的非空闲频段; 选择模块, 用于从所述非空闲频段中选择一频段作为协商频段, 向使用所 述协商频段的干扰相关设备发送频谱使用请求;
许可接收模块, 用于获取所述干扰相关设备的使用许可, 所述使用许可是 对所述频语使用请求的响应。
根据本发明的又一实施例, 提供一种通信设备, 包括:
请求接收模块, 用于获取频谱使用请求, 所述频谱使用请求中包括协商频 段的信息;
决定模块,用于根据当前使用的所述协商频段的使用时间和协商频段宽度 决定是否接受所述频语使用请求; 发送模块, 用于在接受所述频谱使用请求时, 发送使用许可。 根据对上述技术方案的描述, 本发明实施例有如下优点: 根据数据库信息 选择一已被使用的非空闲频段,并与使用该频段的干扰相关设备进行协商以获 取该频段使用权, 可有效降低动态频谱分配的复杂度, 且实现过程简单。
附图说明
为了更清楚地说明本发明实施例中的技术方案,下面将对实施例所需要使 用的附图作简单地介绍,显而易见地, 下面描述中的附图仅仅是本发明的一些 实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可 以根据这些附图获得其他的附图。
图 1为本发明的实施例一提供的一种动态频谱分配方法的示意图; 图 2为本发明的实施例二提供的一种动态频谱分配方法的示意图; 图 3为本发明的实施例三提供的一种动态频谱分配方法的流程示意图; 图 4是本发明实施例三的一种通信管理系统的结构示意图;
图 5是本发明实施例三的一种通信设备的覆盖范围与干扰范围示意图; 图 6是本发明实施例三的一种通信设备的干扰相关设备的示意图; 图 7为本发明的实施例四提供的另一种动态频语分配方法的流程示意图; 图 8为本发明的实施例五提供的一种动态频语分配系统的示意图; 图 9是本发明实施例六的一种动态频语分配设备的结构示意图; 图 10是本发明实施例六的一种管理设备的结构示意图;
图 11是本发明实施例六的一种通信设备的结构示意图;
图 12是本发明实施例七的一种通信设备的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造 性劳动前提下所获得的所有其他实施例, 都属于本发明保护的范围。
实施例一
图 1为本发明的实施例一提供的一种动态频谱分配方法的示意图,该方法 可包括:
S11 : 根据数据库信息找到通信设备覆盖范围内的非空闲频段;
S12: 从所述非空闲频段中选择一频段作为协商频段, 向使用所述协商频 段的干扰相关设备发送频谱使用请求;
S13: 获取所述干扰相关设备的使用许可, 所述使用许可是对所述频谱使 用请求的响应。
本实施例可根据数据库信息选择一已被使用的非空闲频段,并与使用该频 段的干扰相关设备进行协商以获取该频段使用权,可有效降低动态频谱分配的 复杂度, 且实现过程简单。
进一步地, 所述方法还可包括: 在获得所述干扰相关设备的拒绝消息后, 从所述非空闲频段中重新选择一频段作为协商频段,并向使用该重选的协商频 段的干扰相关设备发送频谱使用请求。在与干扰相关设备协商不成功时,可重 新选择协商频段进行协商, 直到所有的协商均失败时,可停止此次动态频谱分 配的过程。
所述频谱分配方法既可由一管理设备执行,也可由一通信设备执行。 所述 管理设备可通过网络与通信设备相连, 与通信设备进行频谱的协商与管理。 管 理设备可包括一数据库,数据库中存储通信设备的相关信息,如通信设备的标 识、地理位置、覆盖范围及所 i¾盖范围内的信道使用情况、通信设备正在使 用的频谱范围、通信设备发射功率、通信设备天线类型、通信设备接收灵敏度、 通信设备干扰范围等各种相关信息,此处不做详细描述。 所述通信设备可以是 集中式或分布式通信设备。 在一种常见的应用中, 所述通信设备可以为基站。 在一种实现方式中, 管理设备在执行步骤 SI 1之前,可以获取所述通信设 备的频谱分配请求。 所述频谱分配请求可由一通信设备提供, 用于向该管理设 备请求获得频谱资源。 管理设备在得到频谱分配请求后,可继续进行频谱分配 协商,在获得所述干扰相关设备的使用许可后,可将频谱分配成功消息提供给 通信设备, 并将所述协商频段分配给所述通信设备。 进一步地, 管理设备还可 更新其数据库内协商频段的相关信息。
在另一种实现方式中,通信设备在执行步骤 S11之前,可获取所述数据库 信息。 该通信设备获得数据库信息后, 可继续进行频谱分配协商, 在获得所述 干扰相关设备的使用许可后,该通信设备将频谱分配成功消息提供给所述管理 设备。 所述管理设备获得频谱分配成功消息后,可将所述协商频段分配给通信 设备, 由通信设备接受所述管理设备分配的协商频段。 进一步地, 所述通信设 备还可向所述管理设备发送锁定请求,对所述协商频段进行锁定, 以防止其它 通信设备参与协商此频段, 可提高通信设备频谱分配的成功率。
实施例二
图 2为本发明的实施例二提供的一种动态频谱分配方法的示意图,该方法 可包括:
S21 : 获取频谱使用请求, 所述频谱使用请求中包括协商频段的信息; S22: 根据当前使用的所述协商频段的使用时间和协商频段宽度决定是否 接受所述频谱使用请求;
S23: 在接受所述频语使用请求时, 发送使用许可。
本实施例中通信设备可根据其前使用的所述协商频段的使用时间和协商 频段宽度决定是否接受所述频语使用请求,当通信设备使用协商频段的时间超 过一定时限后, 需要允许其它设备使用此频段,可避免一个通信设备长期占用 一段频谱资源,使频谱分配公平合理,并能满足其它通信设备的频谱使用需求。
在本实施例中,通信设备获其它设备的频语使用请求后,根据自身对在一 段时间内对频谱资源的使用时间和频段宽度决定是否接受所述频语使用请求, 并可通过发送使用许可以允许其它设备使用其正在使用的协商频段。通信设备 在决定是否接受其它设备的频语使用请求时,需要综合考虑其对频段资源的使 用时间和频段宽度。 例如, 设通信设备当前使用的协商频段宽度为 ;, 已使 用此协商频段的时间长度为 ΔΓ, 可计算公式 (/; (ΔΤ^的值, 其中的 X和 y 是大于 0的数。 当(/ · (AT)y的值大于某一阔值 7¾时, 则此通信设备接受其 它设备的频谱使用请求。
在一种实施例中,通信设备可判断当前使用的所述协商频段的使用时间和 协商频段宽度之积是否大于一阔值;当所述协商频段的使用时间和协商频段宽 度之积大于所述阔值时,接受所述频谱使用请求。设定设通信设备当前使用的 频段仍为 /;, 已使用此频段的时间长度仍为 ΔΓ,如果 / · ΔΓ≥7¾, 则此通信 设备接受其它设备的频谱使用请求。也就是说,通信设备此时需要允许其它设 备使用 自 己的正在使用的协商频段。 所述阔值 7¾可由 FCC ( Federal Communication Commission,美国联邦通信委员会 )等通信行业相关机构设定, 也可以由用户根据实际情况设定。
可以理解,通信设备根据当前使用的所述协商频段的使用时间和协商频段 宽度决定是否接受所述频语使用请求还可以有其它实现方式。例如当使用时间 ΔΓ≥Γ1,且协商频段宽度/ i ≥ 1,则通信设备接受所述频语使用请求;当 ΔΓ 和/;至少有一个少于预定的门限值 或 , 则通信设备可不接受所述频谱 使用请求。 对于具体的实现方法, 本实施例不做限定。
通信设备在接受所述频谱使用请求并发送使用许可后,可停止使用协商频 段, 可防止对其它设备形成干扰。 所述通信设备可以是固定或移动类型设备。
实施例三
图 3为本发明的实施例三提供的一种动态频谱分配方法的流程示意图,该 方法可包括: S31 : 通信设备向管理设备发送频谱分配请求。
通信设备在需要使用频谱资源时, 向管理设备发送频谱分配请求, 并可在 发送的频语分配请求的同时将需要分配的带宽告知给所述管理设备。图 4是本 发明实施例三的一种通信管理系统的结构示意图。 管理设备 41可与至少一个 通信设备 42相连, 所述管理设备 41可连接一数据库设备 43。 所述管理设备 41可查询数据库设备 43获得其需要的信息, 通信设备 42间可通过网络相连。
S32: 管理设备根据数据库信息判断所述通信设备覆盖范围内是否存在空 闲频段, 如果是, 则执行 S33; 如果否, 则执行 S34。
管理设备通过查找数据库信息查找发起请求的通信设备覆盖范围内是否 存在空闲频段。在一种具体实现方式中, 管理设备可根据数据库信息找到通信 设备覆盖范围内的信道频段集合以及通信设备的干扰相关设备。如果存在至少 一个干扰相关设备正在使用通信设备覆盖范围内的某个频段,则对所述通信设 备来说,此频段为非空闲频段; 如果通信设备覆盖范围内的某个频段没有被通 信设备的干扰相关设备使用, 则对所述通信设备来说, 该频段为空闲频段。 需 要说明的是, 空闲频段是根据对通信设备的干扰情况定义的, 即便一个频段已 被其它设备所使用,如果所述其它设备对该通信设备干扰小于一定门限值, 则 该频段仍是所述通信设备的空闲频段。如果使用该频段所述其它设备对该通信 设备干扰大于所述一定门限值, 则该频段是所述通信设备的非空闲频段。 不同 通信设备对频谱资源是否为空闲资源可以有不同的定义, 此处不作为限定。
通信设备的干扰相关设备是与该通信设备的通信构成干扰的设备。干扰相 关设备可根据对通信设备的干扰程度来定义。当另一设备对通信设备的干扰大 于一定门限值时, 所述另一设备就是通信设备的干扰相关设备。干扰相关设备 如何定义可根据具体的应用情况来决定,关键是判断一个设备的干扰信号是否 会影响另一设备的工作。
为了更清楚地对干扰相关设备的定义进行解释,下面以蜂窝式通信系统为 例进行说明。可以理解,相关方法经过改进后也可应用于分布式通信系统等其 它种类通信系统,此处不作为限定。 图 5是本发明实施例三的一种通信设备的 覆盖范围与干扰范围示意图。 所述通信设备 51可以是一基站, 其周围一定范 围为其通信覆盖范围 52, 该范围内的服务设备可通过通信设备 51接入到通信 网络, 而在覆盖范围 52外的服务设备不能通过通信设备 51接入到通信网络。 也就是说, 在覆盖范围 52 内, 通信设备 51 的信号功率必须大于一定门限值 P1,以便其服务设备能清楚接收其信号。所述服务设备可以是终端或用户设备。 图 5内同样显示了通信设备 51的干扰范围 53, 在干扰范围 53之外, 通信设 备 51的信号功率小于一门限值 P2,以避免对其它设备形成干扰。通常情况下, 门 P艮值 P1大于门 P艮值 P2; 而干扰范围 53通常要大于覆盖范围 52。 可进行如 下定义, 当一个通信设备 A的覆盖范围与另一通信设备 B的干扰范围存在重 叠时, 或者当一个通信设备 A的干扰范围与另一通信设备 B的覆盖范围存在 重叠时, 则通信设备 A与通信设备 B互为对方的干扰相关设备。 图 6是本发 明实施例三的一种通信设备的干扰相关设备的示意图。 在图 6 内, 通信设备 61拥有覆盖范围 62和干扰范围 63;通信设备 64拥有覆盖范围 65和干扰范围 66; 通信设备 67拥有覆盖范围 68和干扰范围 69。 可以看到通信设备 61的覆 盖范围 62与通信设备 64的干扰范围 66存在重叠,则通信设备 61与通信设备 64互为对方的干扰相关设备。 通信设备 61的覆盖范围 62与通信设备 67的干 扰范围 69不存在重叠,且通信设备 61的干扰范围 63与通信设备 67的覆盖范 围 68也不存在重叠,则通信设备 61与通信设备 67不是对方的干扰相关设备。
干扰相关设备的定义也可考虑通信设备类型的不同,通常情况下, 同类设 小。 而不同类型的设备间通常不会考虑相互干扰避免的问题, 因此干扰较大。 如果一个通信设备覆盖范围与另一通信设备的干扰范围甚至覆盖范围出现重 叠, 但两个通信设备是同类设备, 彼此干扰较小, 并不影响对方工作, 则两个 通信设备互不构成对方的干扰相关设备。通常情况下,通信干扰过程发生在不 同类型设备间, 但同类设备间的干扰也可能存在, 此处不做为限定。
S33: 管理设备从所述空闲频段中选择一频段分配给所述通信设备。
管理设备在选择空闲频段时,可根据通信设备提供的需要分配的带宽为该 通信设备选择空闲频段。 管理设备可从数据库中找到多个空闲频段, 并选则一 带宽大于需要分配的带宽的频段并分配给所述通信设备。可以理解, 当仅存在 唯——个空闲频段时,通信设备可将该唯一的空闲频段确定为待分配频段。 所 述选择的频段内可包含多个信道 C1,每个信道 C1可包括至少一个最小子信道 C2。 如果一个信道 C1内存在多个最小子信道 C2, 则多个最小子信道 C2间可 以为连续的,也可以不连续。上述最小子信道可以是动态频语分配的最小单位。
如前面实施例所述,所选空闲频段可能已被多个不干扰所述通信设备正常 工作的其它设备所使用。特别地, 当多个通信设备的同类设备也在使用该频段 时,彼此干扰可能很小, 所述通信设备可与所述其同类设备通过时分复用的方 式共同使用此空闲频段。 当然,通过时分复用方式使用同一频段的互不干扰设 备的数量可做出限定。例如, 最多 3个互不干扰的通信设备可通过时分复用使 用一个频段,如果使用该频段的设备数量大于 3个, 管理设备可不将此频段分 配给继续申请使用该频段的设备。优选地, 所述管理设备在选择空闲频段时可 将使用频率最低或使用设备数量最少的空闲频段分配给所述通信设备。 例如, 如果某一空闲频段未被任何设备使用,管理设备可优选将此频段分配给所述通 信设备。
所述管理设备将所选空闲频段分配给所述通信设备后,可更新数据库内该 通信设备或其相应覆盖范围内空闲频段的使用记录。所述管理设备可通知所述 通信设备频谱分配成功并将为其分配的空闲频段的频率范围和使用情况等信 息提供给所述通信设备。
S34: 管理设备根据数据库信息找到通信设备覆盖范围内的非空闲频段。 当通信设备覆盖范围内不存在空闲频段,则管理设备可找到通信设备覆盖 范围内的非空闲频段。如前面实施例所述,通信设备覆盖范围内的非空闲频段 已被至少一个通信设备的干扰相关设备所使用。可以理解, 满足条件的非空闲 频段通常可以有多个。
S35: 管理设备从所述非空闲频段中选择一频段作为协商频段, 向使用所 述协商频段的干扰相关设备发送频谱使用请求。
当所述非空闲频段有一个时,管理设备可直接将此非空闲频段确定为协商 频段;当所述非空闲频段有多个,管理设备可从中选择一个频段作为协商频段, 并向使用所述协商频段的干扰相关设备发送频谱使用请求。优选地, 管理设备 可根据数据库信息获取使用非空闲频段的干扰相关设备的数量或非空闲频段 被干扰相关设备使用的频率,并选择参与使用的干扰相关设备最少或被干扰相 关设备使用频率最低的非空闲频段作为协商频段。这样选出的协商频段被使用 的频率较低, 可提高协商成功概率并缩短协商时间。
管理设备选定协商频段后,向使用所述选定协商频段的所有干扰相关设备 发送频语使用请求, 请求对方允许将此频谱分配给有使用需求的通信设备。
S36: 干扰相关设备决定是否接受管理设备的频谱使用请求, 并向管理设 备回复信息。
在一种具体实现方式中, 干扰相关设备获得频谱使用请求后,根据自身对 协商频段的使用时间和频段宽度决定是否接受所述频语使用请求。在一种实施 例中,干扰相关设备可判断当前使用的所述协商频段的使用时间和协商频段宽 度之积是否大于一阔值;当所述协商频段的使用时间和协商频段宽度之积大于 所述阔值时, 接受所述频语使用请求。 所述阔值可根据具体应用设定。
干扰相关设备在做出决定后向管理设备回复信息。如果干扰相关设备接受 所述频谱使用请求,发送一个使用许可信息,允许通信设备使用所述协商频段; 如果干扰相关设备拒绝频谱使用请求, 回复一个拒绝消息,拒绝通信设备使用 其协商频段。 进一步地, 当干扰相关设备允许通信设备使用其协商频段后, 将 停止使用所述协商频段, 可防止与通信设备产生干扰。
S37: 管理设备获取干扰相关设备的回复信息, 判断回复信息是否为使用 许可信息, 如果是, 则执行 S38; 如果否, 则管理设备重新执行 S35。
S38: 管理设备将所述协商频段分配给所述通信设备, 并输出频谱分配成 功消息。
管理设备在获得所述干扰相关设备的使用许可后,将所述协商频段分配给 所述通信设备, 并更新数据库内容。 通常情况下, 管理设备需要与使用协商频 段的多个干扰相关设备进行协商,当收到所述多个干扰相关设备发送的使用许 可后,将所述协商频段分配给所述通信设备。 管理设备更新数据库的内容可包 括: 协商频段的相关信息和所述通信设备使用此协商频段的情况等。 管理设备 可输出频谱分配成功消息,通知所述通信设备频谱分配已经成功, 管理设备也 可将频谱分配成功消息发送给干扰相关设备。
在一种实现方式中,管理设备收到的多个干扰相关设备的回复信息中存在 拒绝消息,则说明存在至少一个干扰相关设备不同意通信设备使用其正在使用 的频段, 则协商过程失败。 管理设备可从通信设备覆盖范围内的非空闲频段中 重新选择一频段作为协商频段并进行协商。
管理设备可依次协商多个非空闲频段, 如果前一次协商不成功,可不断继 续重新发起协商。在一种实现方式中, 管理设备可记录通信设备覆盖范围内的 多个非空闲频段的集合 , 从集合 内找到参与使用的干扰设备最少的或被 干扰设备使用率最低的频段进行协商,协商成功则为通信设备分配协商成功的 频段, 协商失败则为将此频段从集合 S。内删除, 继续从集合 中找到参与使 用的干扰设备最少的或被干扰设备使用率最低的频段进行协商, 直到集合 的所有频段都协商失败, 则管理设备可输出频谱分配失败信息给通信设备。
本实施例中管理设备根据通信设备的频谱分配请求,找到通信设备覆盖范 围内的空闲频段并分配给通信设备,如果所 i¾盖范围内不存在空闲频段,可 找到一非空闲频段并与使用非空闲频段的其它设备进行协商,当得到所述其它 设备的使用许可后,将协商成功的频段分配给通信设备, 无需通信设备检测周 围信道使用情况, 实现方案简单, P争低动态频语分配的复杂度。
实施例四
图 7为本发明的实施例四提供的另一种动态频语分配方法的流程示意图, 该方法可包括:
S71 : 通信设备向管理设备发送频谱分配请求。
通信设备在需要使用频谱资源时, 向管理设备发送频谱分配请求, 并可在 发送的频语分配请求的同时将需要分配的带宽告知给所述管理设备。
S72: 管理设备将其数据库信息提供给所述通信设备。
管理设备可在其数据库内找到通信设备的相关信息,并将通信设备覆盖范 围内的信道使用情况及干扰相关设备情况等信息提供给所述通信设备。
S73: 通信设备根据获得的数据库信息判断所述通信设备覆盖范围内是否 存在空闲频段, 如果是, 则执行 S74; 如果否, 则执行 S76。
在一种具体实现方式中,通信设备可根据数据库信息找到通信设备覆盖范 围内的信道频段集合以及通信设备的干扰相关设备。如果存在至少一个干扰相 关设备正在使用通信设备覆盖范围内的某个频段, 则对所述通信设备来说,此 频段为非空闲频段;如果通信设备覆盖范围内的某个频段没有被通信设备的干 扰相关设备使用, 则对所述通信设备来说, 该频段为空闲频段。 所述干扰相关 设备的定义可参照之前的实施例, 此处不再赘述。
S74: 通信设备从所述空闲频段中选择一频段作为待分配频段, 并向管理 设备发出频谱锁定请求。
通信设备在选择空闲频段时,可根据自身需要的带宽选择空闲频段,具体 选择过程可与参照前面实施例,此处不再赘述。通信设备选择的频段内可包含 多个信道 Cl, 每个信道 C1可包括至少一个最小子信道 C2。 最小子信道 C2 间可以为连续的, 也可以不连续。 可以理解, 当仅存在唯——个空闲频段时, 通信设备可将该唯一的空闲频段确定为待分配频段。
通信设备选定待分配频段后,可向管理设备发出频谱锁定请求,请求对方 锁定待分配频段, 防止此待分配频段再被分配给其它设备使用。
S75: 管理设备同意将待分配频段分配给通信设备, 锁定此待分配频段。 管理设备如果同意将待分配频段分配给通信设备,可锁定此频段,被锁定 后的频段不会被分配给其它通信设备。当管理设备收到其它设备的频谱分配请 求后,其它设备可从管理设备处获知此待分配频段已被锁定,使其它设备不会 参与该频段的协商或分配,提高通信设备频谱分配的成功率。 管理设备锁定频 谱成功后,可更新其数据库信息,例如可更新数据库内该通信设备或其相应覆 盖范围内空闲频段的使用记录。 管理设备可在数据更新后解除对该频段的锁 定, 以便其它设备可继续参与该频段的协商和分配。
在管理设备同意此次频谱分配后,通信设备可使用所述分配的频段。 管理 设备如果不同意将待分配频段分配给通信设备,也可反馈一消息给通信设备表 明此次频谱分配不成功, 则此频段不能被分配给通信设备。
S76: 通信设备根据数据库信息找到通信设备覆盖范围内的非空闲频段。 当通信设备覆盖范围内不存在满足通信设备带宽需求的空闲频段时,则其 可根据数据库信息找到通信设备覆盖范围内的非空闲频段。 如前面实施例所 述,通信设备覆盖范围内的非空闲频段已被至少一个通信设备的干扰相关设备 所使用。 可以理解, 满足条件的非空闲频段可以有多个。
S77: 通信设备从所述非空闲频段中选择一频段作为协商频段, 并向管理 设备发送频段锁定请求, 请求向管理设备锁定该协商频段。
当所述非空闲频段有一个时,通信设备可直接将此非空闲频段确定为协商 频段;当所述非空闲频段有多个,通信设备可从中选择一个频段作为协商频段, 并向使用所述协商频段的干扰相关设备发送频谱使用请求。优选地, 管理设备 可根据数据库信息获取使用非空闲频段的干扰相关设备的数量或非空闲频段 被干扰相关设备使用的频率,并选择参与使用的干扰相关设备最少或被干扰相 关设备使用频率最低的非空闲频段作为协商频段。这样选出的协商频段被使用 的频率较低, 可提高协商成功概率并缩短协商时间。
在一种实现方式中,通信设备可请求锁定所述协商频段,被锁定的频段不 会被分配给其它设备,其它设备也不会参与该锁定频段的协商或分配,可提高 通信设备协商此频段的成功率。在另一种实现方式中,通信设备向管理设备发 送的频段锁定请求可指定本次锁定所针对的设备,锁定成功后,其它设备将不 能锁定已被通信设备锁定的设备。 例如, 设备 A希望使用某一频段, 可向正 在使用该频段的设备 B和 C发起协商, 并锁定这两个设备 8和(。 如果设备 D也希望使用该频段, 同样需要向设备 B和 C进行协商, 并锁定设备 8和(。 由于设备 B和 C已被设备 A锁定, 设备 D的锁定行为将会失败, 这意味着设 备 D协商此频段使用权的努力将会失败。 以上实现方式可有效避免其它设备 对正在进行频段协商的设备造成干扰, 提高频段协商的效率与成功率。
S78: 通信设备向使用所述协商频段的干扰相关设备发送频谱使用请求。 通信设备可在管理设备锁定协商频段成功后向所述干扰相关设备发送频 谱使用请求,如果管理设备锁定协商频段失败,通信设备可重新选择一协商频 段并发起协商过程。
在一种具体实现中,还可能出现频段锁定不成功,此时可能有其它设备正 在协商该频段的使用权, 则通信设备暂时不能协商该频段使用权,此时通信设 备可重新选择一非空闲频段并发起协商过程。
S79: 干扰相关设备决定是否接受通信设备的频语使用请求, 并向通信设 备回复信息。
在一种具体实现方式中, 干扰相关设备获得频语使用请求后,根据自身对 协商频段的使用时间和频段宽度决定是否接受所述频语使用请求。干扰相关设 备决定是否接受所述频语使用请求的过程在前述实施例中已经描述,此处不再 赘述。干扰相关设备可允许或不允许通信设备使用其协商频段。 当干扰相关设 备允许通信设备使用其协商频段时, 干扰相关设备可停止使用所述协商频段, 可防止与通信设备产生干扰。
S710:通信设备获取干扰相关设备的回复信息,判断回复信息是否为使用 许可信息, 如果是, 则执行 S711 ; 如果否, 则重复执行 S77。
S711 : 通信设备向管理设备输出频谱分配成功消息。
通常情况下, 通信设备需要与使用协商频段的多个干扰相关设备进行协 商, 当收到所述多个干扰相关设备发送的使用许可后,表明参与协商的干扰相 关设备都同意此次频谱分配, 通信设备可输出频谱分配成功消息。
S712: 管理设备解除对所述协商频段的锁定, 输出分配成功回复消息。 管理设备收到通信设备的分配成功消息,解除对所述协商频段的锁定, 以 便其它设备能参与该频段的协商与分配。 管理设备还可更新其数据库信息, 其 更新数据库的内容可包括:协商频段的相关信息和所述通信设备使用此协商频 段的情况等。
S713: 通信设备接受所述管理设备分配的所述协商频段。
通信设备可收到所述输出分配成功回复消息,从而得知管理设备同意通信 设备使用所述协商频段,通信设备可接受此分配结果并开始使用此分配成功的 所述协商频段或将所述协商频段提供给其它设备使用。
在一种具体实现中,当通信设备收到的多个干扰相关设备的回复信息中存 在拒绝消息,则说明存在至少一个干扰相关设备不同意通信设备使用其正在使 用的协商频段, 则可判定此次协商过程失败, 通信设备不能使用协商频段。 此 时通信设备可重新选择一非空闲频段并发起协商过程。
本实施例中的通信设备可依次协商多个非空闲频段,如果前一次协商不成 功, 可不断继续重新发起协商。 具体地, 通信设备可记录通信设备覆盖范围内 的多个非空闲频段的集合 , 从集合 内找到参与使用的干扰设备最少的或 被干扰设备使用率最低的频段进行协商,协商成功则为通信设备分配协商成功 的频段, 协商失败则为将此频段从集合 内删除, 继续从集合 S。中找到参与 使用的干扰设备最少的或被干扰设备使用率最低的频段进行协商, 直到集合 的所有频段都协商失败, 则管理设备可输出频谱分配失败信息给通信设备。 可以理解,上述实施例提到的频段可包括多个信道,每个信道可包括至少一个 最小子信道, 所述最小子信道可以是动态频语分配的最小单位。
本实施例中通信设备根据数据库信息找到其覆盖范围内的空闲频段并请 求管理设备为其分配空闲频段以便进行通信,如果所 i¾盖范围内不存在空闲 频段,可找到一非空闲频段并与使用非空闲频段的其它设备进行协商, 当得到 所述其它设备的使用许可后,请求管理设备为其分配协商成功的频段, 无需通 信设备检测周围信道使用情况, 实现方案简单, P争低动态频语分配的复杂度。
实施例五
本发明的实施例五还提供一种动态频语分配系统的示意图, 该系统可包 括: 管理设备和至少一个通信设备。 所述至少一个通信设备可通过网络与管理 设备相连, 上述每个通信设备间可通过网络相连。 具体地, 通信设备间或通信 设备与管理设备间可通过 TCP/IP ( Transmission Control Protocol/Internet Protocol, 传输控制 /网际)协议进行彼此的信息交互。 如图 8所示, 所述管理 设备 82可与一数据库设备 83相连, 所述数据库设备 83内可存储有每个通信 设备 85的相关信息, 如每个通信设备 85覆盖范围内的信道使用情况等信息。 管理设备 82可通过查询数据库设备 83获得数据库中的信息。 所述通信设备 85 通常可以是固定设备或移动设备, 所述通信系统可利用前面实施例所述的 方法进行频谱资源的分配。
在一种实现方式中,与管理设备相连的进行频段协商的通信设备可以是频 谱十办商管理实体( SNME, Spectrum Negotiation and Management Entity )0 依然 以图 8为例,所述频语协商管理实体 81与管理设备 82进行频谱的协商与分配, 频谱协商管理实体 81在频谱分配成功后,可通知与其相连的通信收发设备 84。 频语协商管理实体 81的功能是实现频谱的协商与分配, 在分配频语成功后, 所述通信收发设备 84可利用所分配的频段进行通信, 所述通信收发设备 84 可以是基站, 其功能是利用频语协商管理实体 81分配成功的频段收发信息。 可以理解, 与每个频语协商管理实体 81相连的通信收发设备 84可以有多个。 所述频谱协商管理实体 81可以是一个单独的通信设备, 只承担频谱协商与分 配任务,也可与通信收发设备 84集成在一个通信设备 85中。 当频谱协商管理 实体 81与通信收发设备 84集成在所述通信设备 85中时, 所述通信设备 85 可同时拥有分配频谱和利用分配成功的频段实现通信的功能。 所述通信设备 段与其它通信设备 85通信。通信设备 85可以是固定或移动通信设备,如基站、 中继基站等。
实施例六
图 9是本发明实施例六的一种动态频语分配设备 90的结构示意图。 所述 动态频谱分配设备 90可包括:
查找模块 91, 用于根据数据库信息找到通信设备覆盖范围内的非空闲频 段;
选择模块 92, 用于从所述非空闲频段中选择一频段作为协商频段, 向使 用所述协商频段的干扰相关设备发送频谱使用请求;
许可接收模块 93 , 用于获取所述干扰相关设备的使用许可, 所述使用许 可是对所述频谱使用请求的响应。
本实施例的动态频谱分配设备 90根据数据库信息找到通信设备覆盖范围 内的非空闲频段, 向使用非空闲频段的干扰相关设备发起协商, 以便获得非空 闲频段使用权,可方便地实现动态频谱分配,可满足通信设备的频谱使用需求。 进一步地, 所述选择模块 92还可用于: 在获得所述干扰相关设备的拒绝 消息后,从所述非空闲频段中重新选择一频段作为协商频段, 并向使用该重选 的协商频段的干扰相关设备发送频谱使用请求。 选择模块 92可在频谱协商不 成功时重新选择频段进行协商,直到所述动态频谱分配设备获得其所需要的频 谱资源。
在一种实现方式中, 所述动态频谱分配设备可以是管理设备。 图 10是本 发明实施例六的一种管理设备 100的结构示意图。 与图 9类似, 所述管理设备 100可包括: 查找模块 101、 选择模块 102和许可接收模块 103, 还可进一步 包括:
请求获取模块 104, 用于获取所述通信设备的频谱分配请求;
分配模块 105, 用于在获得所述干扰相关设备的使用许可后, 将所述协商 频段分配给所述通信设备。
进一步地, 所述管理设备 100还可进一步包括: 更新模块, 用于在获得所 述干扰相关设备的使用许可后, 更新所述数据库内协商频段的相关信息。 管理 设备跟新数据库信息, 保证数据库信息的准确性。
在另一种实现方式中, 所述动态频谱分配设备可以是通信设备, 图 11是 本发明实施例六的一种通信设备 110的结构示意图。 与图 9类似, 所述通信设 备 110可包括: 查找模块 111、 选择模块 112和许可接收模块 113, 还可进一 步包括:
信息获取模块 114, 用于获取所述数据库信息;
分配接受模块 115, 用于在获得所述干扰相关设备的使用许可后, 接受管 理设备分配的所述协商频段。
进一步地, 所述通信设备 110可包括: 锁定模块, 用于向所述管理设备发 送锁定请求, 以请求对所述协商频段进行锁定。 协商频段被锁定后, 其它设备 将不会参与此协商频段的协商与分配, 可提高通信设备 110频谱分配成功率。 所述通信设备 110可以是基站、 中继基站等各类固定或移动通信设备。
实施例七
图 12是本发明实施例七的一种通信设备 120的结构示意图。 所述通信设 备 120包括:
请求接收模块 121, 用于获取频谱使用请求, 所述频谱使用请求中包括协 商频段的信息;
决定模块 122, 用于根据当前使用的所述协商频段的使用时间和协商频段 宽度决定是否接受所述频语使用请求;
发送模块 123, 用于在接受所述频语使用请求时, 发送使用许可。
本实施例的通信设备 120可获取其它通信设备或管理设备的频谱使用请 求, 根据自身对协商频段使用时间和频段宽度决定是否允许请求方使用此频 段, 使该通信设备长期占用大量频段的可能性降低, 提高频语分配的公平性, 以满足其它通信设备的频语使用需求。
进一步地, 所述决定模块 122还包括:
判断单元,用于判断当前使用的所述协商频段的使用时间和协商频段宽度 之积是否大于一阔值;
决定单元,用于当所述协商频段的使用时间和协商频段宽度之积大于所述 阔值时, 接受所述频语使用请求。
决定模块 122 判断当前使用的所述协商频段的使用时间和协商频段宽度 之积是否大于一阔值来决定是否允许请求方使用其正在使用的频谱,使当前通 信设备长期占用大量频段的可能性降低。本实施例中,通信设备 120在允许对 方使用协商频段后,可退出对所述协商频段的使用, 以防止对其它设备形成干 扰。 所述通信设备 120可以是基站、 中级基站等各类固定或移动式通信设备。
本实施例的动态频语分配方法系统及相关设备可适用于各种类型的动态 频语分配过程。在一种典型的动态频语分配应用中, 所述系统内各设备间可通 过协商分配电视空闲频段(TV White Space )获得电视空闲频段中某一段频谱 资源的使用权。获得动态频谱资源使用权的设备可将其获得使用权转让给其它 设备或与其它设备共享。 现有测量表明, 在大部分区域, 已有的广播电视频段 没有被完全使用, 总是能够找到多个空闲电视频段。本实施例提供的动态频谱 分配方案可为通信设备合理分配这些空白信道,使空闲的电视频段资源得到有 效利用。
综上所述, 本发明实施例可根据数据库信息选择一已被使用的非空闲频 段, 并与使用该频段的干扰相关设备进行协商以获取该频段使用权,可满足通 信设备的频谱使用需求, 且实现过程简单。
本领域普通技术人员可以理解上述方法实施例中的全部或部分流程,是可 以通过计算机程序来指令相关硬件完成的,所述的程序可存储于一计算机可读 取存储介质中,该程序在执行时,可包括如上述各方法的实施例的流程。其中, 所述的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory, ROM ) 或随机存储记忆体( Random Access Memory, RAM )等。
以上所述仅为本发明的几个实施例,本领域的技术人员依据申请文件公开 的内容可以对本发明进行各种改动或变型而不脱离本发明的精神和范围。本领 域技术人员可以理解,在不发生冲突的情况下上述不同实施例间的技术方案可 以通过结合形成新的实施例。

Claims

权 利 要 求
1、 一种动态频语分配方法, 其特征在于, 包括:
根据数据库信息找到通信设备覆盖范围内的非空闲频段;
从所述非空闲频段中选择一频段作为协商频段,向使用所述协商频段的干 扰相关设备发送频谱使用请求;
获取所述干扰相关设备的使用许可,所述使用许可是对所述频谱使用请求 的响应。
2、 如权利要求 1所述的方法, 其特征在于,
在根据数据库信息找到通信设备覆盖范围内的非空闲频段之前, 还包括: 获取所述通信设备的频谱分配请求;
在获得所述干扰相关设备的使用许可后,还包括: 将所述协商频段分配给 所述通信设备。
3、 如权利要求 2所述的方法, 其特征在于, 在获得所述干扰相关设备的 使用许可后, 还包括:
更新所述数据库内协商频段的相关信息。
4、 如权利要求 1所述的方法, 其特征在于,
在根据数据库信息找到通信设备覆盖范围内的非空闲频段之前, 还包括: 获取所述数据库信息;
在获得所述干扰相关设备的使用许可后,还包括:接受管理设备分配的所 述协商频段。
5、 如权利要求 4所述的方法, 其特征在于, 还包括:
向所述管理设备发送锁定请求, 以请求对所述协商频段进行锁定。
6、 如权利要求 1至 5中的任一项所述的方法, 其特征在于, 还包括: 在获得所述干扰相关设备的拒绝消息后,从所述非空闲频段中重新选择一 频段作为协商频段,并向使用该重选的协商频段的干扰相关设备发送频谱使用 请求。
7、 一种动态频语分配方法, 其特征在于, 包括:
获取频谱使用请求, 所述频谱使用请求中包括协商频段的信息; 根据当前使用的所述协商频段的使用时间和协商频段宽度决定是否接受 所述频谱使用请求;
在接受所述频谱使用请求时, 发送使用许可。
8、 如权利要求 7所述的方法, 其特征在于, 所述根据当前使用的所述协 商频段的使用时间和协商频段宽度决定是否接受所述频语使用请求包括: 判断当前使用的所述协商频段的使用时间和协商频段宽度之积是否大于 一阔值;
当所述协商频段的使用时间和协商频段宽度之积大于所述阔值时,接受所 述频谱使用请求。
9、 一种动态频谱分配设备, 其特征在于, 包括:
查找模块, 用于根据数据库信息找到通信设备覆盖范围内的非空闲频段; 选择模块, 用于从所述非空闲频段中选择一频段作为协商频段, 向使用所 述协商频段的干扰相关设备发送频谱使用请求;
许可接收模块, 用于获取所述干扰相关设备的使用许可, 所述使用许可是 对所述频语使用请求的响应。
10、 如权利要求 9所述的动态频谱分配设备, 其特征在于, 所述动态频语 分配设备是管理设备, 还包括:
请求获取模块, 用于获取所述通信设备的频谱分配请求;
分配模块, 用于在获得所述干扰相关设备的使用许可后,将所述协商频段 分配给所述通信设备。
11、 如权利要求 10所述的动态频语分配设备, 其特征在于, 还包括: 更新模块, 用于在获得所述干扰相关设备的使用许可后, 更新所述数据库 内协商频段的相关信息。
12、 如权利要求 9所述的动态频谱分配设备, 其特征在于, 所述动态频语 分配设备是通信设备, 还包括:
信息获取模块, 用于获取所述数据库信息;
分配接受模块, 用于在获得所述干扰相关设备的使用许可后,接受管理设 备分配的所述协商频段。
13、 如权利要求 12所述的动态频语分配设备, 其特征在于, 还包括: 锁定模块, 用于向所述管理设备发送锁定请求, 以请求对所述协商频段进 行锁定。
14、如权利要求 9至 13中任一项所述的动态频语分配设备,其特征在于, 所述选择模块还用于: 在获得所述干扰相关设备的拒绝消息后,从所述非空闲 频段中重新选择一频段作为协商频段,并向使用该重选的协商频段的干扰相关 设备发送频谱使用请求。
15、 一种通信设备, 其特征在于, 包括:
请求接收模块, 用于获取频谱使用请求, 所述频谱使用请求中包括协商频 段的信息;
决定模块,用于根据当前使用的所述协商频段的使用时间和协商频段宽度 决定是否接受所述频语使用请求;
发送模块, 用于在接受所述频谱使用请求时, 发送使用许可。
16、 如权利要求 15所述的通信设备, 其特征在于, 所述决定模块包括: 判断单元,用于判断当前使用的所述协商频段的使用时间和协商频段宽度 之积是否大于一阔值;
决定单元,用于当所述协商频段的使用时间和协商频段宽度之积大于所述 阔值时, 接受所述频语使用请求。
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