WO2012171200A1 - 动态频谱分配方法、中心控制单元、基站及频谱分配系统 - Google Patents

动态频谱分配方法、中心控制单元、基站及频谱分配系统 Download PDF

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Publication number
WO2012171200A1
WO2012171200A1 PCT/CN2011/075807 CN2011075807W WO2012171200A1 WO 2012171200 A1 WO2012171200 A1 WO 2012171200A1 CN 2011075807 W CN2011075807 W CN 2011075807W WO 2012171200 A1 WO2012171200 A1 WO 2012171200A1
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WO
WIPO (PCT)
Prior art keywords
base station
frequency band
unlicensed
licensed
spectrum
Prior art date
Application number
PCT/CN2011/075807
Other languages
English (en)
French (fr)
Inventor
刘劲楠
冯淑兰
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
Priority to EP11867978.6A priority Critical patent/EP2713643B1/en
Priority to PCT/CN2011/075807 priority patent/WO2012171200A1/zh
Priority to CN2011800008116A priority patent/CN102232307B/zh
Publication of WO2012171200A1 publication Critical patent/WO2012171200A1/zh
Priority to US14/108,151 priority patent/US9215715B2/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
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/53Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • 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

  • Embodiments of the present invention relate to the field of wireless communication technologies, and in particular, to a dynamic spectrum allocation method, a central control unit, a base station, and a spectrum allocation system.
  • Cognitive radio technology is a technology that allows wireless communication devices to use the idle spectrum for wireless communication without interfering with authorized users in the same frequency band.
  • spectrum resources become increasingly scarce, cognitive radio technology is used as a way to improve spectrum utilization.
  • the method has been widely concerned and studied, and dynamic spectrum allocation technology, as one of the core technologies of cognitive radio, has also become a research hotspot.
  • Unlicensed frequency band resources where the unlicensed frequency band includes an open frequency band and an open licensed frequency band, and the open frequency band refers to a frequency resource that allows some low-power devices (less than lw) to be used without authorization, without interfering with devices in other frequency bands.
  • the open licensed band refers to the spectrum resources that allow the device to use the licensed band in an unauthorized manner, such as TV idle (TV WS), without interfering with authorized users.
  • TV White Space licensed band is a band that requires a license to use.
  • the specific steps of the centrally controlled dynamic spectrum allocation method include:
  • the central control unit receives a bandwidth request message sent by the base station, where the request message includes a bandwidth requirement of the base station, a transmit power of the base station, and geographic location information;
  • the central control unit determines the current unlicensed idle spectrum resource of the base station according to the base station transmit power and the geographical location information carried in the bandwidth request message, and determines a spectrum allocation plan for the base station according to the bandwidth requirement of the base station;
  • the central control unit sends a bandwidth request response message including the spectrum allocation scheme to the base station;
  • the central control unit receives the bandwidth request acknowledgement message sent by the base station, and confirms the unlicensed frequency band resource actually used;
  • the central control unit updates the unlicensed band occupancy according to the received bandwidth request confirmation message. Condition.
  • the spectrum allocation scheme determined by the above method may not be within the range of the radio frequency capability of the base station, and the base station cannot use the unlicensed frequency band according to the indication of the spectrum allocation scheme, thereby causing the spectrum allocation algorithm to be invalid.
  • the embodiments of the present invention provide a dynamic spectrum allocation method, a central control unit, a base station, and a spectrum allocation system, which are used for dynamic spectrum allocation of bandwidth requirements of a base station, thereby effectively improving spectrum allocation flexibility and utilization of spectrum resources. .
  • the dynamic spectrum allocation method in the embodiment of the present invention includes: receiving a bandwidth request message sent by a base station, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, and a set of authorized frequency bands of the base station, where the base station
  • the set of licensed frequency bands includes at least one of the following: a set of first licensed frequency bands that are radio-capable, aggregated, and allowed to be dynamically used on the base station and the unlicensed frequency band, and aggregated on the base station and the unlicensed frequency band that do not share the radio frequency capability.
  • a set of second licensed frequency bands that are allowed to be dynamically used; determining a spectrum allocation scheme according to a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, a set of licensed frequency bands of the base station, and a set of the currently idle unlicensed frequency bands obtained Transmitting a bandwidth request response message including a spectrum allocation scheme, the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and the bandwidth requirement of the at least one licensed frequency band in the set of authorized frequency bands of the base station needs to be aggregated to be allocated to the base station Unlicensed band used on.
  • the method for dynamic spectrum allocation in the embodiment of the present invention includes: sending a bandwidth request message to a central control unit, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, and a set of authorized frequency bands of the base station, the base station
  • the set of licensed frequency bands includes at least one of the following: a set of first licensed frequency bands that are aggregated and allowed to be dynamically used for sharing radio frequency capability on the base station and the unlicensed frequency band, and the radio frequency capability is not shared between the base station and the unlicensed frequency band.
  • a set of second licensed frequency bands that are aggregated and allowed to be dynamically used; a bandwidth request response message including a spectrum allocation scheme fed back by the receiving center control unit, the spectrum allocation scheme is used to indicate unlicensed frequency band information allocated to the base station, and the base station needs to be
  • the bandwidth requirements of at least one of the licensed frequency bands are aggregated to an unlicensed frequency band allocated for use by the base station; the unlicensed frequency band allocated for use by the base station and the bandwidth requirement for processing at least one licensed frequency band are used according to the spectrum allocation scheme.
  • the central control unit in the embodiment of the present invention includes: a receiver, configured to receive a band sent by the base station
  • the wide request message includes: a radio frequency capability of the base station, a bandwidth requirement on the unlicensed frequency band of the base station, and a set of licensed frequency bands of the base station, where the set of licensed frequency bands of the base station includes at least one of the following: sharing between the base station and the unlicensed band a set of radio frequency capable, aggregated, and dynamically allowed first licensed frequency bands, a set of second licensed frequency bands that are not aggregated with radio frequency capability and that are allowed to be dynamically used on the base station and the unlicensed frequency band; And determining, according to a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, a set of licensed frequency bands of the base station, and a set of the currently idle unlicensed frequency bands obtained by the base station; the transmitter is configured to send the spectrum allocation scheme a bandwidth request response message, the spectrum allocation scheme is used to indicate the unlicense
  • the base station in the embodiment of the present invention includes: a transmitter, configured to send a bandwidth request message to the central control unit, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, and a set of licensed frequency bands of the base station.
  • the set of licensed frequency bands of the base station includes at least one of the following: a set of the first licensed frequency band that is aggregated and allowed to be dynamically used to share the radio frequency capability on the base station and the unlicensed frequency band, and the radio frequency capability is not shared between the base station and the unlicensed frequency band.
  • a receiver configured to receive a bandwidth request response message that is fed back by the central control unit and includes a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unauthorized use allocated to the base station Band information, and the bandwidth requirement of at least one licensed band in the set of licensed frequency bands of the base station needs to be aggregated to an unlicensed frequency band allocated for use by the base station; and the use unit is configured to use the unlicensed frequency band allocated to the base station according to the spectrum allocation scheme And a band that processes at least one licensed band Needs.
  • the spectrum allocation system in the embodiment of the present invention includes: a central control unit, a base station.
  • the embodiments of the present invention have the following advantages:
  • the central control unit according to the radio frequency capability of the base station included in the received bandwidth request message, the bandwidth requirement of the base station in the licensed frequency band, and the set of authorized frequency bands of the base station, and according to the obtained current idle non-
  • the set of licensed bands determines the spectrum allocation scheme.
  • DRAWINGS 1 is a schematic diagram of a dynamic spectrum allocation method according to an embodiment of the present invention.
  • FIG. 2 is another schematic diagram of a dynamic spectrum allocation method according to an embodiment of the present invention.
  • FIG. 3 is another schematic diagram of a dynamic spectrum allocation method according to an embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a dynamic spectrum allocation method according to an embodiment of the present invention.
  • FIG. 5 is another schematic diagram of a dynamic spectrum allocation method according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a central control unit according to an embodiment of the present invention.
  • FIG. 7 is another schematic diagram of a central control unit according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a base station according to an embodiment of the present invention.
  • FIG. 9 is another schematic diagram of a base station according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a frequency word allocation system according to an embodiment of the present invention.
  • the embodiments of the present invention provide a dynamic spectrum allocation method, a central control unit, a base station, and a spectrum allocation system, which are used by the central control unit to perform dynamic spectrum allocation for the base station, which can effectively reduce the probability of failure of the spectrum allocation scheme and reduce the radio frequency required by the base station.
  • the number of chains increases the flexibility of the system.
  • an embodiment of a dynamic spectrum allocation method includes:
  • a bandwidth request message sent by the base station where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on the unlicensed frequency band of the base station, and a set of authorized frequency bands of the base station, where the set of licensed frequency bands on the base station includes at least one of the following: A set of first licensed frequency bands that are aggregated and allowed to be dynamically used by the upper and the unlicensed frequency bands, and the second licensed frequency bands that are aggregated and allowed to be dynamically used are not shared by the base station and the unlicensed frequency bands. Collection
  • the central control unit manages the resources of the unlicensed frequency band and performs dynamic spectrum allocation on the bandwidth request of the base station.
  • the central control unit receives the bandwidth request message sent by the base station, where the bandwidth request message includes the radio frequency of the base station.
  • the capability, the bandwidth requirement on the unlicensed frequency band of the base station, and the set of licensed frequency bands of the base station, the set of licensed frequency bands on the base station includes at least one of the following: the radio frequency capability shared by the base station and the unlicensed frequency band, aggregated and allowed to be dynamically used A set of first licensed frequency bands, a set of second licensed frequency bands that are aggregated and allowed to be dynamically used, without sharing radio frequency capabilities on the base station and the unlicensed frequency bands.
  • the bandwidth request message further includes information such as a base station's transmit power, a base station's geographic location information, and a base station system version identifier.
  • the shared radio frequency capability between the licensed frequency band and the unlicensed frequency band refers to: licensed frequency band and unlicensed frequency band. Both the licensed band and the unlicensed band occupy the resources of the RF chain. The licensed band and the unlicensed band do not share the RF capability. The licensed band and the unlicensed band are respectively in two. Within the spectrum range supported by independent RF chains, the respective frequency bands are used to support the corresponding frequency bands.
  • the central control unit receives the bandwidth request message of the base station. Then, the spectrum allocation scheme is determined according to the radio frequency capability of the base station, the bandwidth requirement on the unlicensed frequency band of the base station, the set of licensed frequency bands of the base station, and the obtained set of currently idle unlicensed frequency bands.
  • the central control unit may establish an interference graph according to the transmit power of the base station carried in the bandwidth request message and the geographical location information of the base station, and if all the working devices in one frequency band are within the frequency range supported by the radio frequency of the base station The interference area does not overlap with the interference area of the base station, and the frequency band is idle for the base station, so the base station control unit can obtain the currently idle unlicensed frequency band in the frequency range supported by the base station by establishing the interference map. Collection. It should be noted that, in the embodiment of the present invention, the central control unit may further obtain, from the database, a set of currently idle unlicensed frequency bands within a range of radio frequency support frequency bands of the base station.
  • a bandwidth request response message that includes a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and the bandwidth requirement of the at least one licensed frequency band in the set of authorized frequency bands of the base station needs to be aggregated to the allocation. On the unlicensed band used by the base station.
  • a bandwidth request response message including a spectrum allocation scheme is sent to the base station, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and the set of authorized frequency bands of the base station needs to be
  • the bandwidth requirements of at least one of the licensed bands are aggregated to an unlicensed band allocated for use by the base station.
  • the set of licensed frequency bands of the base station includes at least one of the following: a set of the first licensed frequency band that is shared by the base station and the unlicensed frequency band, and that is aggregated and allowed to be dynamically used, and the radio frequency capability is not shared between the base station and the unlicensed frequency band. , a set of second licensed bands that have been aggregated and allowed to be used dynamically.
  • the central control unit when an allocation scheme that satisfies the bandwidth requirement of the base station in the unlicensed frequency band cannot be allocated from the set of currently idle unlicensed frequency bands, the central control unit will send the bandwidth request response message. Carrying the information of the request failure, notifying the base station that the bandwidth request is lost. Lost.
  • the central control unit passes the radio frequency capability of the base station included in the bandwidth request message, the bandwidth requirement of the unlicensed frequency band of the base station, the set of authorized frequency bands of the base station, and the acquired set of the currently idle unlicensed frequency bands.
  • Determine the spectrum allocation scheme By aggregating the bandwidth requirement of the licensed frequency band to the unlicensed frequency band allocated to the base station, the determined spectrum allocation scheme can be within the radio frequency capability of the base station, reducing the probability of failure of the spectrum allocation scheme, and reducing the need for the base station to be used.
  • the number of RF chains saves RF resources and enables dynamic spectrum allocation.
  • the central control unit determines a spectrum allocation scheme according to the bandwidth request message sent by the base station and the set of the currently idle unlicensed frequency bands, where the set of authorized frequency bands of the base station included in the bandwidth request message includes at least one of the following Item: A set of first licensed frequency bands that are aggregated and allowed to be dynamically used on the base station and the unlicensed frequency band. The base station and the unlicensed frequency band do not share the radio frequency capability, and the second is aggregated and allowed to be dynamically used.
  • the set of authorized frequency bands when the parameters of the set of licensed frequency bands of the base station in the bandwidth request message are different, the method for determining the spectrum allocation scheme by the central control unit is also different.
  • the set of the licensed frequency bands of the base station included in the bandwidth request message is: a set of the first licensed frequency band that is aggregated and allowed to be dynamically used when the base station and the unlicensed frequency band share the radio frequency capability, and the dynamic frequency in the embodiment of the present invention
  • Examples of the language allocation method include:
  • 201 Receive a bandwidth request message sent by the base station, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, and a radio frequency capability shared by the base station and the unlicensed frequency band, and the first that is aggregated and allowed to be dynamically used. a collection of licensed bands;
  • the central control unit manages the resources of the unlicensed frequency band and performs dynamic spectrum allocation on the bandwidth request of the base station.
  • the central control unit receives the bandwidth request message sent by the base station, where the bandwidth request message includes the radio frequency of the base station. Capability, the bandwidth requirement on the unlicensed frequency band of the base station, the set of the first licensed frequency band that is aggregated and allowed to be dynamically used, and the bandwidth request message further includes the transmit power of the base station.
  • Information such as the geographical location information of the base station, the base station system version identifier, and the like.
  • the central control unit After receiving the bandwidth request message, the central control unit will determine the currently idle unlicensed frequency band. Whether the set can meet the bandwidth requirement on the unlicensed band of the base station, for example, if the set of currently idle unlicensed bands is ⁇ 6M, 8M ⁇ , and the bandwidth requirement on the unlicensed band of the base station is 10M,
  • 6M+8M is greater than 10M, which can meet the bandwidth requirements of the base station.
  • the first requirement is obtained from the set of currently idle unlicensed frequency bands that meets the bandwidth requirement on the unlicensed frequency band of the base station. A collection of spectra. If the set of currently idle unlicensed bands is
  • Frac _ ULB ⁇ frac _ ULB l , frac _ ULB 2 ,..., frac _ ULB f , frac _ ULB tc WS _ S t ⁇ Every continuous or non-contiguous / rac _[/Z ⁇ is WS
  • the set of currently idle unlicensed bands is ⁇ 6M, 8M ⁇ .
  • the spectrum set frac_ULB that satisfies the bandwidth requirement on the unlicensed frequency band of the base station may be ⁇ 5M, 5M ⁇ , where the first 5M belongs to the spectrum range of 6M, When the two 5Ms belong to the 8M spectrum range, the first spectrum set is ⁇ 6M.8M ⁇ .
  • the bandwidth requirement of the unlicensed frequency band of the base station is a combination of the basic bandwidth supported by the base station.
  • the radio frequency capability of the base station includes: a supported frequency band range, a number of radio frequency chains that support carrier aggregation, and a type of carrier aggregation supported, where the types of carrier aggregation support include continuous carrier aggregation or non-contiguous carrier aggregation.
  • the frequency band of the first spectrum set is in a certain frequency range supported by the base station, and the number of the radio frequency chain of the carrier aggregation required by the first spectrum set is less than or equal to the number of the radio frequency chain supported by the base station, and the type of the carrier aggregation
  • the first spectrum set is within the range of the radio frequency capability of the base station.
  • the set of currently idle unlicensed frequency bands is obtained from a frequency range supported by the base station, and therefore, obtained from a set of currently idle unlicensed frequency bands.
  • the first set of spectra is within the frequency range supported by the base station.
  • the base station in the 700M ⁇ 1G band is three, and the RF link can be used for the licensed band and the unlicensed band, where the licensed band has used one RF link, the base station is in the 700M ⁇ 1G band.
  • the number of available RF chains is two.
  • the first radio set requires three discontinuous unlicensed idle bands in the 700M ⁇ 1G band, the unlicensed idle bands and the used licensed bands do not satisfy the continuous carrier.
  • the radio frequency capability of the base station cannot meet the requirements of the first spectrum set.
  • determining a spectrum allocation scheme is: the unlicensed frequency band in the first spectrum set is allocated to the unlicensed frequency band used by the base station, and step 209 is continued;
  • the central control unit determines that the spectrum allocation scheme is: using the unlicensed frequency band in the first spectrum set as the unlicensed frequency band allocated to the base station. .
  • the determined spectrum allocation scheme is: The 5M bandwidth in the unlicensed band 6M bandwidth is allocated to the base station for use, and the 5M bandwidth in the unlicensed band 8M bandwidth is allocated to the base station for use.
  • the central control unit determines whether the set of first licensed frequency bands includes a third set of licensed frequency bands that share radio frequency capabilities with unlicensed frequency bands in the first set of spectrums.
  • the set of the first licensed frequency band that is aggregated and allowed to be dynamically used by the base station and the unlicensed frequency band is:
  • LB _ CRF ⁇ LB _ CRF u l , LB _ CRF ⁇ , ⁇ , LB _ CRF u k " ⁇ , then the central control unit traverses the ⁇ 3 ⁇ 4 _ in the first spectrum set H3 ⁇ 4 _ S _ CRF contains LB _ CRF v with ⁇ 3 ⁇ 4 _ shared RF capability, if present, the L £ _ CRF v is the licensed band in the third licensed band set.
  • step 207 determining whether the first spectrum set can aggregate the bandwidth requirement of the licensed frequency band in the third licensed frequency band set and after the aggregation is within the range of the radio frequency capability of the base station, if yes, executing step 208, if otherwise, performing step 210;
  • the central control unit determines whether the first spectrum set can aggregate the bandwidth requirement of the licensed frequency band in the third licensed frequency band set, and is aggregated within the range of the radio frequency capability of the base station.
  • the central control unit traverses the first spectrum set, and determines whether the bandwidth requirement of the first spectrum set can be aggregated in the licensed band of the third licensed band set is: determining whether there is unauthorized in the first spectrum set.
  • the band j sport can aggregate the bandwidth requirements of the licensed bands of the third licensed band set such that
  • the frequency allocation scheme can be determined. For example: If the first frequency set is ⁇ 6M, 8M ⁇ , the bandwidth requirement of the base station
  • the unlicensed frequency band in the first spectrum set is used as an unlicensed frequency band allocated to the base station, and the bandwidth requirement of the licensed frequency band in the third authorized frequency band set is aggregated into a non-first spectrum set. On the licensed band;
  • the base station determines the spectrum allocation scheme as:
  • the unlicensed frequency band is used as an unlicensed frequency band allocated to the base station, and the bandwidth requirement of the unlicensed frequency band in the third licensed frequency band set is aggregated to the unlicensed frequency band in the first spectrum set.
  • the first spectrum set is ⁇ 6M, 8M ⁇
  • the baseband bandwidth requirement is 10M
  • the bandwidth requirement of the unlicensed band in the third authorization set is 3M
  • the 8M bandwidth in the first spectrum set can aggregate 3M of the licensed band.
  • the spectrum allocation scheme is: allocate 5M bandwidth and 8M bandwidth in the 6M bandwidth of the first spectrum set to the base station, and release the 3M bandwidth of the licensed band, and the terminal service or the 3M bandwidth The terminal in the connected state switches to the 8M bandwidth.
  • a bandwidth request response message that includes a spectrum allocation scheme, where the spectrum allocation scheme is used to refer to The unlicensed frequency band information allocated to the base station is used, and the bandwidth requirement of at least one licensed frequency band in the set of licensed frequency bands of the base station needs to be aggregated to an unlicensed frequency band allocated for use by the base station;
  • the central control unit After determining the spectrum allocation scheme, the central control unit sends a bandwidth request response message including a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and at least one of the set of authorized frequency bands of the base station is required to be used.
  • the bandwidth requirement of the licensed frequency band is aggregated to the unlicensed frequency band allocated to the base station, wherein the set of licensed frequency bands of the base station refers to a set of licensed frequency bands that are aggregated and allowed to be dynamically used, which share the radio frequency capability on the base station and the unlicensed frequency band.
  • the licensed band in the middle.
  • the unlicensed frequency band in the first spectrum set is allocated to the unlicensed frequency band used by the base station, and the bandwidth generated in step 209 is performed.
  • the information that "the bandwidth requirement of at least one licensed frequency band in the set of authorized frequency bands of the base station needs to be aggregated to the unlicensed frequency band allocated to the base station" is null.
  • the set of the first licensed frequency band does not include the non-distribution in the first spectrum set.
  • the licensed frequency band shares the third licensed frequency band set of the radio frequency capability, or in step 207, the first spectrum set cannot aggregate the bandwidth requirement of the licensed frequency band in the third licensed frequency band set, or the first spectrum set can aggregate the authorized in the third authorized frequency band set.
  • the central control unit sends a bandwidth request response message including the spectrum allocation failure to the base station.
  • step 206 may be performed first, that is, first determining whether the set of the first licensed frequency band includes the third authorized frequency band set that shares the radio frequency capability with the unlicensed frequency band in the first spectrum set. If no, step 205 is performed to determine whether the first spectrum set is within the range of the radio frequency capability of the base station.
  • a specific method for determining a spectrum allocation scheme according to a parameter in a bandwidth request message may be designed according to a specific situation, which is not limited herein.
  • the central control is performed by including the radio frequency capability of the base station and the set of the first licensed frequency band that is aggregated and allowed to be dynamically used, including the radio frequency capability of the base station and the radio frequency capability of the base station and the unlicensed frequency band.
  • the unit can determine a spectrum allocation scheme that satisfies the radio frequency capability of the base station, The probability of failure of the spectrum allocation scheme is low, and the number of radio frequency chains required by the base station can be reduced by aggregating bandwidth requirements on the licensed frequency band to the unlicensed frequency band, thereby saving resources.
  • the unlicensed frequency band currently idle by the base station includes Band 64.
  • the central control unit receives the bandwidth request message sent by the base station, where the bandwidth request message includes: the bandwidth requirement of the base station in the unlicensed frequency band
  • the set of first licensed frequency bands that are aggregated and allowed to be dynamically used is 3M (704M-707M), and the range of supported frequency bands in the base station's radio frequency capability is 700M ⁇ 1G, the number of supported carrier aggregation is two, and the non-contiguous carrier is supported. polymerization.
  • the central control unit determines whether the current set of unlicensed frequency bands WS can meet the bandwidth requirement of 8M on the unlicensed frequency band of the base station.
  • the 5M bandwidth in the Band 64 and the 3M bandwidth in the Band 66 are aggregated.
  • the aggregation of the 3M bandwidth in the Band64 and the 5M bandwidth in the Band 66 can satisfy the bandwidth requirement of the base station in the licensed frequency band, and the first spectrum set can be obtained as ⁇ 6M, 6M ⁇ .
  • Band 66 shares RF capability with unlicensed bands. Aggregated and allowed dynamic use of licensed band 3M (704M-707M) is not a continuous carrier. Therefore, three RF chains are required, but because of the RF link supported by the base station. The number is two, so the first set of spectra is not within the range of the radio frequency capabilities of the base station.
  • the third authorized frequency band set is ⁇ 3M ⁇ , 5M can be used on one unlicensed band, and the bandwidth requirements of 3M and 3M (704M ⁇ 707M) bandwidths of another unlicensed band can be aggregated to meet the capacity of two non-contiguous carriers.
  • the spectrum allocation scheme for this time is: Use 5M bandwidth on Band64, and put on Band66 3M bandwidth is aggregated with the bandwidth requirement of 3M (704M-707M) bandwidth sharing the radio frequency capability; or 5M bandwidth is used on the Band66, and the bandwidth of 3M on the Band64 and the 3M (704M-707M) bandwidth sharing the radio frequency capability with it Bandwidth demand aggregation.
  • the central control unit transmits a bandwidth request response message including a spectrum allocation scheme to the base station.
  • the embodiment shown in FIG. 2 describes a method for determining a frequency allocation scheme when a bandwidth request message includes a set of first licensed frequency bands that are aggregated and allowed to be dynamically used on a base station and an unlicensed shared radio frequency capability, which will be described below.
  • the licensed frequency band of the base station in the bandwidth request message includes the radio frequency capability shared by the base station and the unlicensed frequency band, the aggregated first licensed frequency band that is allowed to be dynamically used, and the unlicensed frequency band do not share the radio frequency capability.
  • FIG. 3 is an embodiment of the dynamic spectrum allocation method in the embodiment of the present invention, including:
  • 301 Receive a bandwidth request message sent by a base station, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on an unlicensed frequency band of the base station, and a radio frequency capability shared by the base station and the unlicensed frequency band, which is aggregated and allowed to be dynamically used. a set of first licensed frequency bands, and a set of second licensed frequency bands that are allowed to be dynamically used by the aggregated and unlicensed frequency bands that do not share radio frequency capabilities;
  • the central control unit manages the resources of the unlicensed frequency band and performs dynamic spectrum allocation on the bandwidth request of the base station.
  • the central control unit receives the bandwidth request message sent by the base station, where the bandwidth request message includes the radio frequency of the base station. Capacity, bandwidth requirement on the unlicensed frequency band of the base station, the radio frequency capability shared by the base station and the unlicensed frequency band, the aggregated first licensed frequency band that is allowed to be dynamically used, and the radio frequency capability not shared by the base station and the unlicensed frequency band, The set of the second licensed frequency band that is aggregated and allowed to be dynamically used.
  • the bandwidth request message further includes information about the base station's transmit power, the base station's geographic location information, and the base station system version identifier.
  • step 302 determining whether the current set of unlicensed frequency bands can meet the bandwidth requirement on the unlicensed frequency band of the base station, and if yes, executing step 303, if not, executing step 312;
  • Steps 302 and 303 are the same as those described in steps 202 and 203 in the embodiment shown in FIG. 2, and details are not described herein again.
  • Step 304 Determine whether the first spectrum set is within a range of radio frequency capabilities of the base station, and if yes, execute Step 305, if no, step 308;
  • step 307 Determine whether the set of the first licensed frequency band and the set of the second authorized frequency band include a fourth authorized frequency band set that can be aggregated with the unlicensed frequency band in the first frequency spectrum set. If yes, go to step 306, if no, Go to step 307;
  • the central control unit determines whether the set of the first licensed frequency band and the set of the second authorized frequency band are included and can be aggregated with the unlicensed frequency band in the first spectrum set.
  • the fourth set of licensed frequency bands wherein the set of the first licensed frequency band that has been aggregated and allowed to be dynamically used by the base station and the unlicensed frequency band is Lfi_CRF, and the radio frequency capability is not shared between the base station and the unlicensed frequency band,
  • the set of the second licensed frequency band that has been aggregated and allowed to be dynamically used is LB_D. Therefore, the fourth licensed frequency band set includes a licensed frequency band that shares the radio frequency capability with the unlicensed frequency band, and/or does not share the radio frequency capability with the unlicensed frequency band.
  • Authorized frequency band is a licensed frequency band that shares the radio frequency capability with the unlicensed frequency band, and/or does not share the radio frequency capability with the unlicensed frequency band.
  • the central control unit traverses the first spectrum set, determines whether the LB_CRF v that shares the radio frequency capability with the H3 ⁇ 4_ in the LB_CRF, and traverses the judgment in the first spectrum set in the L Whether LB_D w with shared RF capability is included in £_ ) _ULB u ⁇ + ⁇ LB _CRF v ⁇ + ⁇ LB _D w ⁇ , then the L£_CRF V and / or _) w is the authorized band in the fourth set of licensed bands.
  • the unlicensed frequency band in the first spectrum set is used as an unlicensed frequency band allocated to the base station, and the bandwidth requirement of the licensed frequency band in the fourth authorized frequency band set is aggregated to an unlicensed allocated to the base station.
  • the frequency band On the frequency band;
  • the central control unit determines the spectrum allocation scheme as: assigning the unlicensed band in the first set of spectrums as an allocation
  • the unlicensed frequency band used by the base station aggregates the bandwidth requirements of the licensed frequency band in the fourth licensed frequency band set to the unlicensed frequency band allocated for use by the base station.
  • determining a spectrum allocation scheme is: using the unlicensed frequency band in the first spectrum set as an unlicensed frequency band allocated to the base station, and continuing to perform step 311;
  • the central control unit determines the spectrum allocation scheme as: assigning the unlicensed frequency bands in the first set of spectrums to the base station. Unlicensed band used.
  • step 308. Determine whether the set of the first licensed frequency band includes the unlicensed frequency in the first spectrum set.
  • the third shared frequency band set of the radio frequency capability is shared by the segment, if yes, step 309 is performed, and if not, step 312 is performed;
  • the unlicensed frequency band in the first spectrum set is used as an unlicensed frequency band allocated to the base station, and the bandwidth requirement of the unlicensed frequency band in the third authorized frequency band set is aggregated into a non-first spectrum set.
  • the licensed band On the licensed band;
  • steps 308-312 are the same as those described in steps 206-210 in the embodiment shown in FIG. 2, and details are not described herein again.
  • the unlicensed frequency band in the first spectrum set is allocated to the unlicensed frequency band used by the base station, and the bandwidth generated in step 311 is performed.
  • the information that "the bandwidth requirement of at least one licensed frequency band in the set of authorized frequency bands of the base station needs to be aggregated to the unlicensed frequency band allocated to the base station" is null.
  • the unlicensed frequency band in the first spectrum set is used as an unlicensed frequency band allocated to the base station, and the licensed frequency band in the third authorized frequency band or the fourth authorized frequency band is used.
  • the bandwidth requirement is aggregated to the unlicensed frequency band allocated to the base station, the probability of failure of the spectrum allocation scheme can be effectively reduced, the number of radio frequency chains required by the base station can be reduced, resources can be effectively saved, and system flexibility can be improved.
  • the central control unit receives the bandwidth request message of the base station, including
  • the radio frequency capability of the base station is 700M ⁇ 1G, which supports 2 non-contiguous carrier aggregation and supports unlicensed band aggregation.
  • the central control unit determines whether the set WS of the currently idle unlicensed band can satisfy the bandwidth requirement on the unlicensed band of the base station
  • the first spectrum set is within the radio frequency capability of the base station.
  • one radio frequency chain is required, which is within the radio frequency range of the base station. Therefore, the first spectrum set is within the radio frequency capability of the base station.
  • L£_CRF ⁇ 3M (704M ⁇ 707M) ⁇
  • LB_D ⁇ M ( 1900M-1910M )
  • 5M (1850M ⁇ 1855M) ⁇ the frequency bands in L£_CRF and L£_ ) are aggregated with the bandwidth requirements of the base station in the unlicensed band to determine that the aggregated bandwidth is less than or equal to The largest combination of 18M, where 3+13 ⁇ 5+13, therefore, in order to maximize the continuous aggregation bandwidth, the 5M (1850M ⁇ 1855M) frequency band in L£_) is aggregated with the first frequency set.
  • the ⁇ 5M (1850M ⁇ 1855M) ⁇ is the licensed frequency band in the fourth licensed frequency band set.
  • the unlicensed frequency band of the first spectrum set ⁇ 10M, 8M ⁇ is used as an unlicensed frequency band allocated to the base station, and the licensed frequency band ⁇ 5M (1850M ⁇ 1855M) ⁇ in the fourth authorized frequency band set is aggregated with the first spectrum set.
  • the specific spectrum allocation scheme is: release the licensed frequency band in the fourth authorized frequency band set ⁇ 5M (1850M ⁇ 1855M) ⁇ , and aggregate the fourth licensed frequency band in three unlicensed frequency bands of Band64, Band65, and Band66.
  • the bandwidth requirement of the set ⁇ 5M (1850M ⁇ 1855M) ⁇ is that the terminal service in the 5M (1850M ⁇ 1855M) frequency band or the terminal in the connected state is switched to the aggregated unlicensed frequency band.
  • the central control unit after receiving the bandwidth request message sent by the base station, the central control unit will The spectrum allocation scheme is set up, and the spectrum allocation scheme is fed back to the base station by using the bandwidth request response message, and the base station uses the unlicensed frequency band and the processing authorized frequency band according to the response message fed back by the central control unit.
  • the dynamics in the embodiment of the present invention are performed.
  • Embodiments of the spectrum allocation method include:
  • the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on the unlicensed frequency band of the base station, and a set of licensed frequency bands of the base station, where the set of authorized frequency bands of the base station includes at least one of the following: A set of first licensed frequency bands that are aggregated and allowed to be dynamically used by the base station and the unlicensed frequency band, and the second licensed frequency band that is aggregated and allowed to be dynamically used is not shared by the base station and the unlicensed frequency band. Collection
  • the bandwidth request message is sent to the central control unit, where the bandwidth request message includes the radio frequency capability of the base station, the bandwidth requirement on the unlicensed frequency band of the base station, and the set of authorized frequency bands of the base station, and the base station
  • the set of authorized frequency bands includes at least one of the following: a set of first licensed frequency bands that are shared by the base station and the unlicensed frequency band, and that are aggregated and allowed to be dynamically used, and the radio frequency capability is not shared between the base station and the unlicensed frequency band, and is aggregated.
  • the bandwidth request message may further include information such as geographic location information of the base station, a transmit power of the base station, and a base station system version identifier.
  • the bandwidth request response message that is sent by the receiving center control unit and includes a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and the bandwidth of at least one licensed frequency band in the set of authorized frequency bands of the base station is required.
  • the demand is aggregated to an unlicensed band allocated for use by the base station;
  • the central control unit After receiving the bandwidth request message sent by the base station, the central control unit determines the spectrum allocation scheme according to the parameters included in the bandwidth request message and the current set of unlicensed frequency bands.
  • the specific spectrum allocation method is referred to. The content described in the embodiment shown in FIG. 1 to FIG. 3 is not described herein again.
  • the central control unit After determining the spectrum allocation scheme, the central control unit sends a bandwidth request response message including the spectrum allocation scheme to the base station, and therefore, the base station receives the bandwidth request response message including the spectrum allocation scheme fed back by the central control unit, where the spectrum allocation scheme It is used to indicate the unlicensed frequency band information allocated to the base station, and needs to aggregate the bandwidth requirement of at least one licensed frequency band in the set of authorized frequency bands of the base station to the unlicensed frequency band allocated for use by the base station. It should be noted that, in the embodiment of the present invention, when the central control unit determines that the spectrum allocation scheme fails, the central control unit feeds back a bandwidth request response message including information of the spectrum allocation failure to the base station, to notify the base station of the bandwidth request. Failed.
  • the base station After receiving the bandwidth request response message fed back by the central control unit, the base station uses the unlicensed frequency band allocated to the base station and the bandwidth requirement of processing at least one licensed frequency band according to the spectrum allocation scheme included in the bandwidth request response message.
  • the base station releases the at least one authorized frequency band, and the terminal on the licensed frequency band is used.
  • the service or the terminal in the connected state switches to the unlicensed band allocated for use by the base station.
  • the base station can transmit the bandwidth requirement of the licensed frequency band to the non-band by transmitting the radio frequency capability of the base station, the bandwidth requirement on the unlicensed frequency band of the base station, and the bandwidth request message of the authorized frequency band set of the base station.
  • the licensed frequency band a spectrum allocation scheme that satisfies the radio frequency capability of the base station is formulated, which reduces the probability of failure of the spectrum allocation scheme and reduces the number of RF chains that need to be used.
  • FIG. 5 is an embodiment of a dynamic spectrum allocation method according to an embodiment of the present invention, including:
  • the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on the unlicensed frequency band of the base station, and a set of licensed frequency bands of the base station, where the set of authorized frequency bands of the base station includes at least one of the following: A set of first licensed frequency bands that are aggregated and allowed to be dynamically used by the base station and the unlicensed frequency band, and the second licensed frequency band that is aggregated and allowed to be dynamically used is not shared by the base station and the unlicensed frequency band. Collection
  • the bandwidth request response message that is sent by the receiving center control unit and includes a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and the bandwidth of at least one licensed frequency band in the set of authorized frequency bands of the base station is required.
  • the demand is aggregated to an unlicensed band allocated for use by the base station;
  • Steps 501 and 502 are the same as those described in steps 401 and 402 shown in FIG. 4, and details are not described herein again.
  • step 503. Determine whether the bandwidth requirement of the at least one licensed frequency band needs to be aggregated in the frequency allocation scheme. Go to the unlicensed frequency band, if yes, go to step 504. If no, go to step 505.
  • the spectrum allocation scheme is used to indicate that the bandwidth requirement of at least one licensed frequency band in the set of authorized frequency bands of the base station needs to be aggregated to be allocated to the base station.
  • the base station obtains a spectrum allocation scheme from the bandwidth request response message, and determines whether the bandwidth requirement of the at least one licensed frequency band needs to be aggregated into the unlicensed frequency band in the frequency allocation scheme.
  • the base station will release the licensed band, and the terminal service or the connected terminal on the licensed band will be switched to the unlicensed band, and the aggregated unlicensed band will be used.
  • the base station will use the unlicensed band allocated to the base station according to the spectrum allocation scheme.
  • the base station uses the frequency band according to the bandwidth request response message
  • the base station also sends a bandwidth request acknowledgement message, where the bandwidth request acknowledgement message includes the frequency band used by the base station.
  • the central control unit After receiving the bandwidth request confirmation message, the central control unit will update the occupancy of the unlicensed band, or the central control unit notifies other devices, such as a database, to update the occupancy of the unlicensed band.
  • the probability of failure of the spectrum allocation scheme can be effectively reduced, and the number of radio frequency chains required by the base station can be reduced, and resources can be saved.
  • an embodiment of a central control unit in an embodiment of the present invention includes:
  • the receiver 601 is configured to receive a bandwidth request message sent by the base station, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on the unlicensed frequency band of the base station, and a set of licensed frequency bands of the base station, where the set of authorized frequency bands of the base station includes at least the following One: a set of first licensed frequency bands that are radio-capable, aggregated, and allowed to be dynamically used on the base station and the unlicensed frequency band. The base station and the unlicensed frequency band do not share the radio frequency capability, and the aggregated and allowed dynamic use a set of two licensed bands;
  • the solution formulating unit 602 is configured to determine, according to the radio frequency capability of the base station, the bandwidth requirement on the unlicensed frequency band of the base station, the set of licensed frequency bands of the base station, and the acquired set of the currently idle unlicensed frequency bands. a spectrum allocation scheme; the scheme formulation unit 602 may specifically be a processor;
  • the transmitter 603 is configured to send a bandwidth request response message that includes a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and the bandwidth requirement of at least one licensed frequency band in the set of authorized frequency bands of the base station is required. Aggregation to unlicensed bands allocated for use by the base station.
  • the transmitter 601 receives the bandwidth request message sent by the base station, and the solution formulating unit 602 determines the spectrum allocation plan according to the bandwidth request message received by the transmitter 601 and the acquired set of the currently idle unlicensed frequency bands.
  • the transmitter 603 transmits a bandwidth request response message including a spectrum allocation scheme to the base station.
  • the central control unit receives the bandwidth request message, and according to the radio frequency capability of the base station included in the bandwidth request message, the bandwidth requirement of the unlicensed frequency band of the base station, the bandwidth request message of the authorized frequency band set of the base station, and the obtained
  • the currently idle set of unlicensed frequency bands determines a spectrum allocation scheme, so that the spectrum allocation scheme determined by the central control unit can reduce the probability of failure of the spectrum allocation scheme within the range of the radio frequency capability of the base station, and can authorize the spectrum allocation scheme.
  • the bandwidth requirements of the frequency band are aggregated into the unlicensed frequency band, which effectively reduces the number of RF chains and saves resources.
  • FIG. 7 is an embodiment of a central control unit according to an embodiment of the present invention, including a receiver 601, a scheme formulation unit 602, a transmitter 603, and FIG.
  • the content described in the embodiment is the same, and details are not described herein again.
  • the solution formulation unit 602 includes:
  • the first determining unit 701 is configured to determine whether the currently idle set of unlicensed frequency bands can meet the bandwidth requirement on the unlicensed frequency band of the base station;
  • the first obtaining unit 702 is configured to: when the current idle set of unlicensed frequency bands can meet the bandwidth requirement on the unlicensed frequency band of the base station, obtain, from the set of currently idle unlicensed frequency bands, the bandwidth requirement that meets the unlicensed frequency band of the base station.
  • First spectrum set ;
  • the second determining unit 703 is configured to determine whether the first spectrum set is within a range of radio frequency capabilities of the base station;
  • the first processing unit 704 is configured to determine, when the first spectrum set is not within the range of the radio frequency capability of the base station, whether the set of the first licensed frequency band includes the third authorization that is common to the unlicensed frequency band in the first spectrum set. a set of frequency bands, if yes, determining whether the first spectrum set can aggregate the bandwidth requirement of the licensed frequency band in the third licensed frequency band set, and after the aggregation, the radio frequency capability of the base station is within the range If yes, the spectrum allocation scheme is determined as: the unlicensed frequency band in the first spectrum set is allocated to the unlicensed frequency band used by the base station, and the bandwidth requirement of the licensed frequency band in the third authorized frequency band set is aggregated into the first spectrum set. On the unlicensed band;
  • a second processing unit 705 configured to: when the first spectrum set is within a range of radio frequency capabilities of the base station, determine a spectrum allocation scheme: use an unlicensed frequency band in the first spectrum set as an unlicensed frequency band allocated to the base station; or When the first spectrum set is within the range of the radio frequency capability of the base station, determining whether the set of the first licensed frequency band and the set of the second authorized frequency band include a fourth licensed frequency band that can be aggregated with the unlicensed frequency band in the first spectrum set The set, if yes, the determined spectrum allocation scheme is: the unlicensed frequency band in the first spectrum set is allocated to the unlicensed frequency band used by the base station, and the bandwidth requirement of the licensed frequency band in the fourth authorized frequency band set is aggregated to the first spectrum set. In the unlicensed band.
  • the solution formulating unit 602 determines a spectrum allocation scheme, specifically: the first determining unit 701 determines that the currently idle unlicensed band Whether the set can meet the bandwidth requirement on the unlicensed frequency band of the base station. If the current set of unlicensed frequency bands can meet the bandwidth requirement on the unlicensed frequency band of the base station, the first obtaining unit 702 obtains the set of the currently idle unlicensed frequency bands.
  • a first spectrum set that satisfies the bandwidth requirement on the unlicensed frequency band of the base station and then the second determining unit 703 determines whether the acquired first spectrum set is within the range of the radio frequency capability of the base station, when the first spectrum set is not in the radio frequency capability of the base station.
  • the first processing unit 704 determines whether the set of the first licensed frequency band includes a third authorized frequency band set that shares the radio frequency capability with the unlicensed frequency band in the first frequency set, and if there is a third authorized frequency band set, the determining Whether a spectrum set can aggregate bandwidth requirements of licensed bands in the third licensed band set, and After the aggregation, the radio frequency capability of the base station is determined, and if yes, the spectrum allocation scheme is determined as: the unlicensed frequency band in the first spectrum set is used as an unlicensed frequency band allocated to the base station, and the licensed frequency band in the third authorized frequency band set is used.
  • the bandwidth requirement is aggregated onto the unlicensed frequency band in the first spectrum set; when the first spectrum set is within the range of the radio frequency capability of the base station, the second processing unit 705 determines that the spectrum allocation scheme is: The licensed frequency band is used as an unlicensed frequency band allocated to the base station, or the set of the first authorized frequency band is determined, and the set of the second authorized frequency band includes a fourth authorized frequency band set that can be aggregated with the unlicensed frequency band in the first spectrum set. If yes, determining a spectrum allocation scheme is: using an unlicensed frequency band in the first spectrum set as an unlicensed frequency band allocated to the base station, and aggregating bandwidth requirements of the licensed frequency band in the fourth authorized frequency band set into the first spectrum set Non On the licensed band.
  • the spectrum allocation is determined according to the radio frequency capability of the base station, the bandwidth requirement on the unlicensed frequency band of the base station, the set of licensed frequency bands of the base station, and the set of currently idle unlicensed frequency bands.
  • the solution enables the obtained spectrum allocation scheme to meet the radio frequency capability of the base station, and can effectively reduce the number of radio frequency chains and effectively save resources by aggregating the bandwidth requirements of the licensed frequency band into the unlicensed frequency band.
  • an embodiment of a base station according to an embodiment of the present invention includes:
  • the transmitter 801 is configured to send a bandwidth request message to the central control unit, where the bandwidth request message includes a radio frequency capability of the base station, a bandwidth requirement on the unlicensed frequency band of the base station, and a set of licensed frequency bands of the base station, where the set of authorized frequency bands of the base station includes the following At least one of: a set of first licensed frequency bands that are radio-capable, aggregated, and allowed to be dynamically used on the base station and the unlicensed frequency band, and the base station and the unlicensed frequency band do not share the radio frequency capability, are aggregated, and are allowed to be dynamically used. a collection of second licensed bands;
  • the receiver 802 is configured to receive, by the central control unit, a bandwidth request response message that includes a spectrum allocation scheme, where the spectrum allocation scheme is used to indicate the unlicensed frequency band information allocated to the base station, and at least one of the set of authorized frequency bands of the base station is required to be used.
  • the bandwidth requirements of the licensed band are aggregated to the unlicensed band allocated for use by the base station;
  • the use unit 803 is configured to use, according to the spectrum allocation scheme, an unlicensed frequency band allocated to the base station and a bandwidth requirement for processing the at least one licensed frequency band.
  • the usage unit 803 can be a processor.
  • the transmitter 801 on the base station sends a bandwidth request message to the central control unit, and the receiver 802 receives the bandwidth request response message fed back by the central control unit, and the using unit 803 of the base station responds to the message according to the bandwidth request.
  • the spectrum allocation scheme included in the spectrum uses the frequency band.
  • the base station transmits the bandwidth request message, the radio frequency capability of the base station, the bandwidth requirement of the unlicensed frequency band of the base station, and the set of the licensed frequency band of the base station, so that the central control unit can formulate the radio frequency of the base station according to the bandwidth request message.
  • the capability of the spectrum allocation scheme reduces the probability of failure of the spectrum allocation scheme, and can also aggregate the bandwidth requirements of the licensed frequency band into the unlicensed frequency band to reduce the number of required RF chains and save resources.
  • FIG. 9 is an embodiment of a base station according to an embodiment of the present invention, including:
  • the transmitter 801, the receiver 802, as shown in FIG. 8, uses the unit 803, and is shown in FIG.
  • the content described in the embodiment is the same, and details are not described herein again.
  • the using unit 803 includes:
  • the determining unit 901 is configured to determine whether the spectrum allocation scheme needs to aggregate the bandwidth requirement of the at least one licensed frequency band to an unlicensed frequency band allocated for use by the base station;
  • the processing unit 902 is configured to: when the bandwidth requirement of the at least one licensed frequency band needs to be aggregated to the licensed frequency band allocated to the base station, release at least one licensed frequency band, and connect the terminal service on the at least one authorized frequency band or in a connected state.
  • the terminal switches to the unlicensed band after aggregation.
  • the receiver 802 receives the bandwidth request response message including the spectrum allocation scheme fed back by the central control unit, and the determining unit 901 determines whether the spectrum allocation scheme needs to be at least one.
  • the bandwidth requirement of the licensed frequency band is aggregated to an unlicensed frequency band allocated to the base station, and when the bandwidth requirement of the at least one licensed frequency band needs to be aggregated to the authorized frequency band allocated for use by the base station, the processing unit 902 releases at least one authorized frequency band, and The terminal service in at least one licensed frequency band or the terminal in the connected state is switched to the unlicensed frequency band after the aggregation, and if not, the unlicensed frequency band allocated to the base station is used according to the spectrum allocation scheme.
  • the base station carries the radio frequency capability of the base station, the bandwidth requirement of the unlicensed frequency band of the base station, and the set of authorized frequency bands of the base station, so that the central control unit can formulate the satisfaction base station according to the bandwidth request message.
  • the radio frequency capability spectrum allocation scheme reduces the probability of failure of the spectrum allocation scheme, and can also aggregate the bandwidth requirements of the licensed frequency band to the unlicensed frequency band to reduce the number of required radio frequency chains and save resources.
  • an embodiment of a spectrum allocation system includes: a central control unit 1001 as described in the embodiment shown in FIG. 6 or 7, and a base station as described in the embodiment shown in FIG. 8 or FIG. 1002.
  • the medium can be a read only memory, a magnetic disk or a compact disk or the like.

Abstract

本发明公开了一种动态频谱分配方法、中心控制单元、基站及频谱分配系统。动态频谱分配方法包括以下步骤:接收基站发送的带宽请求消息,带宽请求消息中包括基站的射频能力,基站非授权频段上的带宽需求,及基站的授权频段的集合;根据基站的射频能力、基站非授权频段上的带宽需求、基站的授权频段集合及获取到的当前空闲的非授权频段的集合确定频谱分配方案;发送包含频谱分配方案的带宽请求响应消息,频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要将基站的授权频段的集合中至少一个授权频段的带宽需求聚合到分配给基站使用的非授权频段上。本发明的实施例还包括中心控制单元、基站及频谱分配系统,能够有效降低频谱分配方案失效的概率。

Description

动态频谘分配方法、 中心控制单元、 基站及频谘分配系统 技术领域
本发明实施例涉及无线通信技术领域, 尤其涉及动态频谱分配方法、 中心 控制单元、 基站及频谱分配系统。
背景技术
认知无线电技术是允许无线通信设备在不干扰同频段的授权用户的情况 下, 利用空闲频谱进行无线通信的技术, 在频谱资源日益稀缺的今天, 认知无 线电技术作为一种提高频谱利用率的方法被广泛的关注和研究,而动态频谱分 配技术作为认知无线电的核心技术之一, 也成为研究热点。
在现有技术中, 动态频谱分配技术从网络架构上来看,可以分为中心控制 式和分布式,在基于中心控制式的动态频谱分配中, 网络中有一个中心控制单 元, 用于集中的管理非授权频段的资源, 其中非授权频段包含开放频段及开放 的授权频段, 开放频段是指在不干扰其他频段设备的前提下, 允许一些低功率 设备(低于 lw )免授权使用的频语资源, 如工业科学医疗 (ISM, Industrial Scientific Medical )频段; 开放的授权频段是指在不干扰授权用户的情况下, 允许设备釆用非授权的方式使用授权频段的频谱资源,如电视空闲(TV WS , Television White Space )频段; 授权频段是指需要许可证才能使用的频段。
基于中心控制式的动态频谱分配方法的具体步骤包括:
1、 中心控制单元接收基站发送的带宽请求消息, 请求消息中包含基站的 带宽需求, 基站的发射功率及地理位置信息;
2、 中心控制单元根据带宽请求消息中携带的基站发射功率及地理位置信 息确定基站当前的非授权空闲频谱资源,并根据基站的带宽需求为基站确定频 谱分配方案;
3、 当当前空闲频谱资源能满足基站的带宽需求时, 中心控制单元将发送 包含频谱分配方案的带宽请求响应消息给基站;
4、 中心控制单元接收基站发送的带宽请求确认消息, 确认实际使用的非 授权频段资源;
5、 中心控制单元根据接收到的带宽请求确认消息更新非授权频段占用情 况。
但是利用上述方法确定的频谱分配方案,可能不在基站的射频能力的范围 内, 导致基站不能按照频谱分配方案的指示使用非授权频段,造成频谱分配算 法失效。
发明内容
本发明实施例提供了动态频谱分配方法、 中心控制单元、基站及频谱分配 系统, 用于对基站的带宽需求进行动态的频谱分配,有效的提高了频谱分配的 灵活性, 及频谱资源的利用率。
本发明实施例中的动态频谱分配方法, 包括: 接收基站发送的带宽请求消 息, 带宽请求消息中包括基站的射频能力, 基站非授权频段上的带宽需求, 及 基站的授权频段的集合,基站的授权频段的集合包括以下至少一项: 基站上和 非授权频段共用射频能力的、 已聚合的且允许动态使用的第一授权频段的集 合,基站上和非授权频段不共用射频能力的、 已聚合的且允许动态使用的第二 授权频段的集合; 根据基站的射频能力、 基站非授权频段上的带宽需求、 基站 的授权频段的集合及获取到的当前空闲的非授权频段的集合确定频谱分配方 案; 发送包含频谱分配方案的带宽请求响应消息, 频谱分配方案用于指示分配 给基站使用的非授权频段信息,及需要将基站的授权频段的集合中至少一个授 权频段的带宽需求聚合到分配给基站使用的非授权频段上。
本发明实施例中动态频谱分配的方法, 包括: 发送带宽请求消息给中心控 制单元 ,带宽请求消息中包括基站的射频能力 ,基站非授权频段上的带宽需求, 及基站的授权频段的集合,基站的授权频段的集合包括以下至少一项: 基站上 和非授权频段共用射频能力的、已聚合的且允许动态使用的第一授权频段的集 合,基站上和非授权频段不共用射频能力的、 已聚合的且允许动态使用的第二 授权频段的集合;接收中心控制单元反馈的包含频谱分配方案的带宽请求响应 消息, 频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要将基 站的授权频段的集合中至少一个授权频段的带宽需求聚合到分配给基站使用 的非授权频段上;根据频谱分配方案使用分配给基站使用的非授权频段及处理 至少一个授权频段的带宽需求。
本发明实施例中的中心控制单元, 包括: 接收器, 用于接收基站发送的带 宽请求消息, 带宽请求消息中包括基站的射频能力,基站非授权频段上的带宽 需求, 及基站的授权频段的集合, 基站的授权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力的、已聚合的且允许动态使用的第一授权频 段的集合,基站上和非授权频段不共用射频能力的、 已聚合的且允许动态使用 的第二授权频段的集合; 方案制定单元, 用于根据基站的射频能力、 基站非授 权频段上的带宽需求、基站的授权频段的集合及获取到的当前空闲的非授权频 段的集合确定频谱分配方案; 发送器,用于发送包含频谱分配方案的带宽请求 响应消息, 频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要 将基站的授权频段的集合中至少一个授权频段的带宽需求聚合到分配给基站 使用的非授权频段上。
本发明实施例中的基站, 包括: 发送器, 用于发送带宽请求消息给中心控 制单元,带宽请求消息中包括基站的射频能力 ,基站非授权频段上的带宽需求, 及基站的授权频段的集合,基站的授权频段的集合包括以下至少一项: 基站上 和非授权频段共用射频能力的、已聚合的且允许动态使用的第一授权频段的集 合,基站上和非授权频段不共用射频能力的、 已聚合的且允许动态使用的第二 授权频段的集合; 接收器, 用于接收中心控制单元反馈的包含频谱分配方案的 带宽请求响应消息, 频谱分配方案用于指示分配给基站使用的非授权频段信 息 ,及需要将基站的授权频段的集合中至少一个授权频段的带宽需求聚合到分 配给基站使用的非授权频段上; 使用单元, 用于根据频谱分配方案使用分配给 基站使用的非授权频段及处理至少一个授权频段的带宽需求。
本发明实施例中的频谱分配系统, 包括: 中心控制单元, 基站。
从以上技术方案可以看出, 本发明实施例具有以下优点:
在本发明实施例中,中心控制单元根据接收到的带宽请求消息中包含的基 站的射频能力,基站在授权频段上的带宽需求及基站的授权频段的集合,及根 据获取到的当前空闲的非授权频段的集合确定频谱分配方案。通过将基站授权 频段的带宽需求聚合到分配给基站使用的非授权频段上,得到满足基站的射频 能力的频谱分配方案, 减少频谱分配方案失效的概率, 同时可减少需使用的射 频链的数目, 节约射频资源, 实现频谱的动态分配。
附图说明 图 1为本发明实施例动态频谱分配方法的一个示意图;
图 2为本发明实施例动态频谱分配方法的另一示意图;
图 3为本发明实施例动态频谱分配方法的另一示意图;
图 4为本发明实施例动态频谱分配方法的一个示意图;
图 5为本发明实施例动态频谱分配方法的另一示意图;
图 6为本发明实施例中心控制单元的一个示意图;
图 7为本发明实施例中心控制单元的另一示意图;
图 8为本发明实施例基站的一个示意图;
图 9为本发明实施例基站的另一示意图;
图 10为本发明实施例频语分配系统的一个示意图。
具体实施方式
本发明实施例提供了动态频谱分配方法、 中心控制单元、基站及频谱分配 系统, 用于中心控制单元为基站进行动态频谱分配, 能够有效的降低频谱分配 方案失效的概率, 减少基站所需要的射频链的数目, 提高系统的灵活性。
请参阅图 1 , 为本发明实施例中动态频谱分配方法的实施例, 包括:
101、 接收基站发送的带宽请求消息, 带宽请求消息中包括基站的射频能 力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 基站上授权频 段的集合包括以下至少一项: 基站上和非授权频段共用射频能力的, 已聚合的 且允许动态使用的第一授权频段的集合,基站上和非授权频段不共用射频能力 的, 已聚合的且允许动态使用的第二授权频段的集合;
中心控制单元管理非授权频段的资源,并对基站的带宽请求进行动态的频 谱分配, 在本发明实施例中, 中心控制单元接收基站发送的带宽请求消息, 其 中, 带宽请求消息中包括基站的射频能力, 基站非授权频段上的带宽需求, 及 基站的授权频段的集合,基站上授权频段的集合包括以下至少一项: 基站上和 非授权频段共用射频能力的, 已聚合的且允许动态使用的第一授权频段的集 合,基站上和非授权频段不共用射频能力的, 已聚合的且允许动态使用的第二 授权频段的集合。 此外, 带宽请求消息中还包含基站的发射功率, 基站的地理 位置信息, 基站系统版本标识等信息。
其中,授权频段和非授权频段共用射频能力是指: 授权频段和非授权频段 都在某个射频链支持的频段范围以内,使用授权频段或非授权频段都占用了该 射频链的资源; 授权频段和非授权频段不共用射频能力是指: 授权频段和非授 权频段分别在两个独立的射频链支持的频谱范围内,使用各自的射频链支持相 应的频段。
102、 根据基站的射频能力、 基站非授权频段上的带宽需求、 基站的授权 频段的集合及获取到的当前空闲的非授权频段的集合确定频谱分配方案; 中心控制单元接收到基站的带宽请求消息后,将根据基站的射频能力、基 站非授权频段上的带宽需求、基站的授权频段的集合及获取到的当前空闲的非 授权频段的集合确定频谱分配方案。
在本发明实施例中,中心控制单元可根据带宽请求消息中携带的基站的发 射功率及基站的地理位置信息建立干扰图, 在基站的射频支持的频段范围内, 若一个频段上所有工作的设备的干扰区域都和基站的干扰区域不重叠,则对于 该基站来说, 该频段是空闲的, 因此基站控制单元可通过建立干扰图获得基站 的射频支持的频段范围内的当前空闲的非授权频段的集合。 需要说明的是,在 本发明实施例中,中心控制单元还可从数据库获得基站的射频支持频段的范围 内的当前空闲的非授权频段的集合。
103、 发送包含频谱分配方案的带宽请求响应消息, 频谱分配方案用于指 示分配给基站使用的非授权频段信息,及需要将基站的授权频段的集合中的至 少一个授权频段的带宽需求聚合到分配给基站使用的非授权频段上。
中心控制单元确定频谱分配方案之后,将发送包含频谱分配方案的带宽请 求响应消息给基站,该频谱分配方案用于指示分配给基站使用的非授权频段信 息,及需要将基站的授权频段的集合中的至少一个授权频段的带宽需求聚合到 分配给基站使用的非授权频段上。其中,基站的授权频段的集合至少包括以下 一项: 基站上和非授权频段共用射频能力的, 已聚合的且允许动态使用的第一 授权频段的集合,基站上和非授权频段不共用射频能力的, 已聚合的且允许动 态使用的第二授权频段的集合。
需要说明的是,在本发明实施例中, 当从当前空闲的非授权频段的集合中 不能分配满足基站在非授权频段的带宽需求的分配方案时,中心控制单元将在 发送的带宽请求响应消息中携带请求失败的信息, 通知基站此次带宽请求失 败。
在本发明实施例中,中心控制单元通过根据带宽请求消息中包含的基站的 射频能力、 基站非授权频段的带宽需求、 基站的授权频段的集合, 及获取到的 当前空闲的非授权频段的集合确定频谱分配方案。通过将授权频段的带宽需求 聚合到分配给基站使用的非授权频段上,使得确定的频谱分配方案能够在基站 的射频能力范围内, 降低了频谱分配方案的失效的概率, 同时可减少基站需要 使用的射频链的数目, 节约射频资源, 实现动态频谱分配。
在本发明实施例中,中心控制单元根据基站发送的带宽请求消息及当前空 闲的非授权频段的集合确定频谱分配方案, 其中, 当带宽请求消息中包含的基 站的授权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力 的, 已聚合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不 共用射频能力的, 已聚合的且允许动态使用的第二授权频段的集合, 当带宽请 求消息中基站的授权频段的集合包含的参数不同时,中心控制单元确定频谱分 配方案的方法也不同, 为了更好的理解本发明描述的技术方案, 请参阅图 2, 为带宽请求消息中包含的基站的授权频段的集合是:基站上和非授权频段共用 射频能力的, 已聚合的且允许动态使用的第一授权频段的集合时, 本发明实施 例中动态频语分配方法的实施例, 包括:
201、 接收基站发送的带宽请求消息, 带宽请求消息中包含基站的射频能 力, 基站非授权频段上的带宽需求, 基站上和非授权频段共用射频能力的, 已 聚合的且允许动态使用的第一授权频段的集合;
中心控制单元管理非授权频段的资源,并对基站的带宽请求进行动态的频 谱分配, 在本发明实施例中, 中心控制单元接收基站发送的带宽请求消息, 其 中, 带宽请求消息中包括基站的射频能力, 基站非授权频段上的带宽需求, 基 站上和非授权频段共用射频能力的,已聚合的且允许动态使用的第一授权频段 的集合,此外,带宽请求消息中还包含基站的发射功率,基站的地理位置信息, 基站系统版本标识等信息。
202、 判断当前空闲的非授权频段的集合是否能满足基站非授权频段上的 带宽需求, 若是, 则执行步骤 203 , 若否, 则执行步骤 210;
中心控制单元接收到带宽请求消息之后 ,将判断当前空闲的非授权频段的 集合是否能满足基站非授权频段上的带宽需求, 例如, 若当前空闲的非授权频 段的集合为 {6M, 8M} , 基站非授权频段上的带宽需求为 10M 时, 则因为
6M+8M大于 10M, 可以满足基站的带宽要求。
203、 从当前空闲的非授权频段的集合中获取满足基站非授权频段上的带 宽需求的第一频谱集合;
在本发明实施例中,若当前空闲的非授权频段的集合能够满足基站非授权 频段上的带宽需求,则从当前空闲的非授权频段的集合中获取满足基站非授权 频段上的带宽需求的第一频谱集合。 若当前空闲的非授权频段的集合为
WS={WSi , WS2, WSt, t N}, 基站的带宽需求为 |t/L£卜 ,
Figure imgf000009_0001
若 WS能够满足基站的带宽需求 |t/L£| , 其中,
frac _ ULB = { frac _ ULBl , frac _ ULB2,……, frac _ ULBf , frac _ ULBt c WS _ St } 每一个连续的或非连续的/ rac _[/Z^都是 WS 中元素的一部分, 则可获得 第一频谱集合为 H¾ _ S = {W¾ _ ,H¾ _ S2,…… N} , / £ s。
例如, 若基站为长期演进( LTE , Long Term Evolution ) 系统中的版本 8 , 支持的基本带宽为 1.4M, 3M, 5M, 10M和 20M, 当前空闲的非授权频段的 集合为 {6M, 8M} , 基站非授权频段上的带宽需求为 10M 时, 满足基站非授 权频段上的带宽需求的频谱集合 frac _ ULB可以是为 { 5M,5M } , 其中第一个 5M 属于 6M的频谱范围内, 第二个 5M属于 8M的频谱范围内, 则第一频谱集合 为 {6M.8M}。
需要说明的是,在本发明实施例中,基站非授权频段的带宽需求是由基站 支持的基本带宽的组合而成。
204、 判断第一频谱集合是否在基站的射频能力的范围内, 若是, 则执行 步骤 205 , 若否, 则执行步骤 206;
在本发明实施例中, 基站的射频能力包括: 支持的频段范围, 支持载波聚 合的射频链数目, 支持的载波聚合的类型, 其中, 支持载波聚合的类型包括连 续载波聚合或者非连续载波聚合,当第一频谱集合的频段的范围在基站支持的 某个频段范围内,且第一频谱集合需要的载波聚合的射频链数目小于或等于基 站支持载波聚合的射频链数目,且载波聚合的类型与基站支持的载波聚合的类 型相同时, 第一频谱集合在基站的射频能力的范围内。
需要说明的是,在本发明实施例中, 当前空闲的非授权频段的集合是从基 站支持的频段范围内获得的, 因此,从当前空闲的非授权频段的集合中获得的 第一频谱集合在基站支持的频段范围内。
需要说明的是,若基站支持的射频链中有某个射频链是授权频段与非授权 频段共用的,则在判断第一频谱集合需要的载波聚合的射频链数目是否小于或 等于基站支持的载波聚合的射频链数目,及是否满足连续载波聚合时, 需要参 考基站已经使用的授权频段中授权频段与非授权频段共用的射频链的数目和 频段。 例如: 若基站在 700M~1G频段支持的独立射频链的数目为 3个, 且射 频链可用于授权频段和非授权频段,其中授权频段已使用 1个射频链, 则基站 在 700M~1G频段内剩下可以使用的射频链的数目为 2个, 当第一射频集合需 要 3段 700M~1G频段内的不连续非授权空闲频段, 且这些非授权空闲频段和 已经使用的授权频段不满足连续载波聚合时,则基站的射频能力不能满足第一 频谱集合的需求。
205、 确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给 基站使用的非授权频段, 继续执行步骤 209;
在本发明实施例中, 当第一频谱集合在基站的射频能力的范围内时, 中心 控制单元确定频谱分配方案为:将第一频谱集合中的非授权频段作为分配给基 站使用的非授权频段。 例如: 若第一频谱集合为 {6M, 8M} , 基站的带宽需求 为 10M, 且第一频谱集合在基站的射频能力的范围内, 则确定的频谱分配方 案为:将第一频谱集合中的非授权频段 6M带宽中的 5M带宽分配给基站使用, 及将非授权频段 8M带宽中的 5M带宽分配给基站使用。
206、 判断第一授权频段的集合中是否包含与第一频谱集合中的非授权频 段共用射频能力的第三授权频段集合, 若是, 则执行步骤 207, 若否, 则执行 步骤 210;
中心控制单元将判断第一授权频段的集合中是否包含与第一频谱集合中 的非授权频段共用射频能力的第三授权频段集合。
在本发明实施例中,基站上和非授权频段共用射频能力的, 已聚合的且允 许动态使用的第一授权频段的集合为:
LB _ CRF = {LB _ CRFu l , LB _ CRF^ , ······ , LB _ CRFu k" } , 则中心控制单元遍历第一 频谱集合 H¾ _ S中的 Η¾ _ 判断在 LB _ CRF中是否包含与 Η¾ _ 共用射频能 力的 LB _ CRFv , 若存在时, 该 L£ _ CRFv即为第三授权频段集合中的授权频段。 207、 判断第一频谱集合是否能聚合第三授权频段集合中授权频段的带宽 需求且聚合后在基站的射频能力的范围内, 若是, 则执行步骤 208, 若否则执 行步骤 210;
中心控制单元判断第一频谱集合是否能聚合第三授权频段集合中授权频 段的带宽需求, 且聚合后在基站的射频能力的范围内。
在本发明实施例中, 中心控制单元将遍历第一频谱集合, 判断第一频谱集 合是否能聚合第三授权频段集合中授权频段的带宽需求具体为:判断在第一频 谱集合中是否存在非授权频段 j„能够聚合第三授权频段集合的 个授权 频段的带宽需求, 使得 |^¾_ | //^_[/1^„|+^|1^_(¾ |。 接着判断第三授权 频段集合中的授权频段的带宽需求聚合到第一频谱集合后是否在基站的射频 能力的范围内, 若判断均是, 则更新 /rac_[/L£集合中 /rac_[/L£„元素的对应带 宽为 |/raC_[/L£„|+
Figure imgf000011_0001
即可确定频语分配方案。 例如: 若第一频语集 合为 {6M, 8M}, 基站的带宽需求 |[/L£| = /rac_[/L£={5M, 5M}, 第三授权频段 集合中授权频段的带宽需求为 3M, 则遍历第一频谱集合, 其中, 由于 6M<5M+3M, 8M=5M+3M, 因此, 第一频语集合中的 8M带宽能够聚合第三 授权频段集合中的授权频段的 3M带宽。 若聚合后在基站的射频能力范围内, 则更新后的//^_^/1^={5^1, 8M}。
208、 确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给 基站使用的非授权频段,并将第三授权频段集合中授权频段的带宽需求聚合到 第一频谱集合中的非授权频段上;
在本发明实施例中,当第一频谱集合能聚合第三授权频段集合中授权频段 的带宽需求且聚合后在基站的射频能力的范围内时, 基站确定频谱分配方案 为: 将第一频谱集合中的非授权频段作为分配给基站使用的非授权频段, 并将 第三授权频段集合中非授权频段的带宽需求聚合到第一频谱集合中的非授权 频段上。 例如: 第一频谱集合为 {6M, 8M}, 基带的带宽需求为 10M, 第三授 权集合中的非授权频段的带宽需求为 3M, 且第一频谱集合中的 8M带宽能够 聚合授权频段的 3M 带宽需求, 因此, 频谱分配方案为: 将第一频谱集合中 6M带宽中的 5M带宽,及 8M带宽分配给基站使用,且将释放授权频段的 3M 带宽, 将该 3M带宽上的终端业务或出于连接状态的终端切换到 8M带宽上。
209、 发送包含频谱分配方案的带宽请求响应消息, 频谱分配方案用于指 示分配给基站使用的非授权频段信息,及需要将基站的授权频段的集合中至少 一个授权频段的带宽需求聚合到分配给基站使用的非授权频段上;
中心控制单元在确定频谱分配方案之后,发送包含频谱分配方案的带宽请 求响应消息, 该频谱分配方案用于指示分配给基站使用的非授权频段信息,及 需要将基站的授权频段的集合中至少一个授权频段的带宽需求聚合到分配给 基站使用的非授权频段上, 其中,基站的授权频段的集合是指基站上和非授权 频段共用射频能力的,已聚合的且允许动态使用的授权频段的集合中的授权频 段。
需要说明的是, 在本发明实施例中, 若步骤 205中确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给基站使用的非授权频段,则在步骤 209 中发生的带宽请求响应消息包含的频谱分配方案中, "需要将基站的授权 频段的集合中至少一个授权频段的带宽需求聚合到分配给基站使用的非授权 频段上" 的信息为空。
210、 发送包含频谱分配失败的带宽请求响应消息。
在本发明实施例中,若当前空闲的非授权频段的集合不能满足基站非授权 频段上的带宽需求, 或者在步骤 206中, 第一授权频段的集合中不包含与第一 频谱集合中的非授权频段共用射频能力的第三授权频段集合, 或者在步骤 207 中, 第一频谱集合不能聚合第三授权频段集合中授权频段的带宽需求, 或者第 一频谱集合能聚合第三授权频段集合中授权频段的带宽需求但是聚合后不在 基站的射频能力的范围内时,中心控制单元发送包含频谱分配失败的带宽请求 响应消息给基站。
需要说明的是, 在本发明实施例中, 还可先执行步骤 206, 即先判断第一 授权频段的集合中是否包含与第一频谱集合中的非授权频段共用射频能力的 第三授权频段集合, 若否, 则执行步骤 205 , 即判断第一频谱集合是否在基站 的射频能力的范围内。在实际应用中,可根据具体的情况设计根据带宽请求消 息中的参数确定频谱分配方案的具体方法, 此处不做限定。
在本发明实施例中,通过在带宽请求消息中包含基站的射频能力及基站上 和非授权频段共用射频能力的,已聚合的且允许动态使用的第一授权频段的集 合等参数,使得中心控制单元能够确定满足基站射频能力的频谱分配方案, 降 低了频谱分配方案失效的概率,且可通过将授权频段上的带宽需求聚合到非授 权频段上, 以减少基站所需要的射频链的数目, 节约了资源。
为了更好的理解技术,将利用具体的应用例描述本发明图 2所示实施例描 述的技术方案。
若支持载波聚合的后续长期演进( LTE-A, Long Term Evolution-Advanced ) 系统的基站支持的基本带宽为 1.4M, 3M, 5M, 10M, 15M, 20M, 基站当前 空闲的非授权频段包括 Band 64和 Band 66 两个空闲的非授权非连续频段,其 中 Band 64的频段范围是 770M~776M, Band 66的频段范围是 782M~788MHz, 可记为 WS={64, 66} (也可以用 {770M~776M, 782M~788M} 表示)。
1 ) 中心控制单元接收到基站发送的带宽请求消息, 其中, 带宽请求消息 包含: 基站在非授权频段上的带宽需求 |t/L£|为 8M, 基站上和非授权频段共用 射频能力的, 已聚合的且允许动态使用的第一授权频段的集合为 3M ( 704M-707M ),且基站的射频能力中支持频段的范围是 700M~1G、 支持载波 聚合数为 2个、 支持非连续的载波聚合。
2 ) 中心控制单元判断当前空闲的非授权频段的集合 WS是否能满足基站 非授权频段上的带宽需求 8M, 在本发明应用例中, 将 Band 64中的 5M带宽 和 Band 66中的 3M带宽聚合, 或者将 Band64中 3M带宽与 Band 66中的 5M 带宽聚合可满足基站在授权频段上的带宽需求, 则可得到第一频谱集合为 {6M, 6M}。
3 )判断第一频谱集合是否在基站的射频能力的范围内, 由于 Band64 及
Band 66都与和非授权频段共用射频能力的, 已聚合的且允许动态使用的授权 频段 3M ( 704M-707M )不是连续载波, 因此, 则需要 3个射频链, 但是由于 基站支持的射频链的数目为 2个,因此第一频谱集合不在基站的射频能力的范 围内。
4)判断第一授权频段的集合中是否包含与第一频谱集合中的非授权频段 共用射频能力的第三授权频段集合,在本发明应用例中, 第三授权频段集合为 {3M} , 则可在一个非授权频段上使用 5M, 并将另一个非授权频段的 3M 与 3M ( 704M~707M )带宽的带宽需求聚合, 可满足两个非连续载波聚合的能力。 因此, 此次的频谱分配方案为: 在 Band64上使用 5M的带宽, 将 Band66上的 3M的带宽与与其共用射频能力的 3M ( 704M-707M ) 带宽的带宽需求聚合; 或者在 Band66上使用 5M的带宽,将 Band64上的 3M的带宽与与其共用射频 能力的 3M ( 704M-707M ) 带宽的带宽需求聚合。
5)中心控制单元将包含频谱分配方案的带宽请求响应消息发送给基站。 图 2 所示的实施例描述了带宽请求消息中包含基站上和非授权共用射频 能力的,已聚合的且允许动态使用的第一授权频段的集合时确定频语分配方案 的方法,下面将介绍当带宽请求消息中的基站的授权频段中包含基站上和非授 权频段共用射频能力的, 已聚合的且允许动态使用的第一授权频段的集合,及 和非授权频段不共用射频能力的,已聚合的且允许动态使用的第二授权频段的 集合时, 确定频谱分配方案的方法, 请参阅图 3 , 为本发明实施例中动态频谱 分配方法的实施例, 包括:
301、 接收基站发送的带宽请求消息, 其中, 带宽请求消息中包含基站的 射频能力,基站非授权频段的上的带宽需求,基站上和非授权频段共用射频能 力的, 已聚合的且允许动态使用的第一授权频段的集合,及基站上和非授权频 段不共用射频能力的, 已聚合的允许动态使用的第二授权频段的集合;
中心控制单元管理非授权频段的资源,并对基站的带宽请求进行动态的频 谱分配, 在本发明实施例中, 中心控制单元接收基站发送的带宽请求消息, 其 中, 带宽请求消息中包括基站的射频能力, 基站非授权频段上的带宽需求, 基 站上和非授权频段共用射频能力的,已聚合的且允许动态使用的第一授权频段 的集合、及基站上和非授权频段不共用射频能力的, 已聚合的且允许动态使用 的第二授权频段的集合, 此外, 带宽请求消息中还包含基站的发射功率, 基站 的地理位置信息, 基站系统版本标识等信息。
302、 判断当前空闲的非授权频段的集合是否能满足基站非授权频段上的 带宽需求, 若是, 则执行步骤 303 , 若否, 则执行步骤 312;
303、 从当前空闲的非授权频段的集合中获取满足基站非授权频段上的带 宽需求的第一频谱集合;
步骤 302和 303分别与图 2所示实施例中的步骤 202和 203描述的内容相 同, 此处不再赘述。
304、 判断第一频谱集合是否在基站的射频能力的范围内, 若是, 则执行 步骤 305, 若否, 则执行步骤 308;
305、 判断第一授权频段的集合、 及第二授权频段的集合中是否包含能与 第一频谱集合中的非授权频段聚合的第四授权频段集合, 若是, 则执行步骤 306, 若否, 则执行步骤 307;
当获得的第一频谱集合在基站的射频能力的范围内时,中心控制单元判断 第一授权频段的集合、及第二授权频段的集合中是否包含能与第一频谱集合中 的非授权频段聚合的第四授权频段集合, 其中,基站上和非授权频段共用射频 能力的, 已聚合的且允许动态使用的第一授权频段的集合为 Lfi_CRF , 及基站 上和非授权频段不共用射频能力的,已聚合的且允许动态使用的第二授权频段 的集合为 LB_D, 因此, 该第四授权频段集合中包含与非授权频段共用射频能 力的授权频段, 和 /或与非授权频段不共用射频能力的授权频段。
在本发明实施例中,中心控制单元将遍历第一频谱集合 中的 , 判断在 LB _ CRF中是否包含与 H¾ _ 共用射频能力的 LB _ CRFv , 及遍历第一频 谱集合 中的 判断在 L£_ )中是否包含与 共用射频能力的 LB_Dw
Figure imgf000015_0001
_ULBu\ + \LB _CRFv\ + \LB _Dw\ , 则该 L£_CRFV和 /或 _ )w即为第四授权频段集合中的授权频段。
306、确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给 基站使用的非授权频段 ,将第四授权频段集合中的授权频段的带宽需求聚合到 分配给基站使用的非授权频段上;
若 LB— CRF和 /或 L£ _ )中包含能与第一频谱集合中的聚合的第四授权频 段集合, 中心控制单元确定频谱分配方案为: 将第一频谱集合中的非授权频段 作为分配给基站使用的非授权频段,将第四授权频段集合中的授权频段的带宽 需求聚合到分配给基站使用的非授权频段上。
307、 确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给 基站使用的非授权频段, 继续执行步骤 311;
若 L£_CRF及 L£_ )中不包含能与第一频谱集合聚合的第四授权频段集 合, 中心控制单元将确定频谱分配方案为: 将第一频谱集合中的非授权频段作 为分配给基站使用的非授权频段。
308、 判断第一授权频段的集合中是否包含与第一频谱集合中的非授权频 段共用射频能力的第三授权频段集合, 若是, 则执行步骤 309, 若否, 则执行 步骤 312;
309、 判断第一频谱集合是否能聚合第三授权频段集合中授权频段的带宽 需求且聚合后在基站的射频能力的范围内, 若是, 则执行步骤 310, 若否, 则 执行步骤 312;
310、 确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给 基站使用的非授权频段,将第三授权频段集合中非授权频段的带宽需求聚合到 第一频谱集合中的非授权频段上;
311、 发送包含频谱分配方案的带宽请求响应消息, 频谱分配方案用于指 示分配给基站使用的非授权频段信息,及需要将基站的授权频段的集合中至少 一个授权频段的带宽需求聚合到分配给基站使用的非授权频段上;
312、 发送包含频谱分配失败的带宽请求响应消息。
在本发明实施例中, 步骤 308~312 分别与图 2 所示实施例中的步骤 206~210描述的内容相同, 此处不再赘述。
需要说明的是, 在本发明实施例中, 若步骤 307中确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给基站使用的非授权频段,则在步骤 311 中发生的带宽请求响应消息包含的频谱分配方案中, "需要将基站的授权 频段的集合中至少一个授权频段的带宽需求聚合到分配给基站使用的非授权 频段上" 的信息为空。
在本发明实施例中, 当确定的频谱分配方案为: 将第一频谱集合中的非授 权频段作为分配给基站使用的非授权频段,将第三授权频段或者第四授权频段 中的授权频段的带宽需求聚合到分配给基站使用的非授权频段上时,能够有效 的降低频谱分配方案失效的概率, 减少基站所需要的射频链的数目, 能够有效 的节约资源, 提高系统的灵活性。
为了更好的理解图 3所示实施描述的技术方案,将以具体的应用例进行介 绍。
若支持载波聚合的后续长期演进( LTE-A, Long Term Evolution-Advanced ) 系统的基站支持的基本带宽为 1.4M, 3M, 5M, 10M, 15M, 20M, 基站当前 空闲的非授权频段包括 Band 64, Band65 , Band 66 三个空闲的非授权非连续 频段, 其中 Band 64 的频段范围是 770M-776M, Band 65 的频段范围是 776M-782M, Band 66的频段范围是 782M~788MHz, 可记为 WS={64, 65, 66}。
1 ) 中心控制单元接收到基站的带宽请求消息, 其中包括 |[/L£|=13M, LB_CRF ={3M ( 704M-707M ) } , LB _D ={10M ( 1900M-1910M ) ,
5M(1850M~1855M)},基站的射频能力为支持的频段范围为 700M~1G, 支持 2 个非连续载波聚合, 支持非授权频段聚合。
2) 中心控制单元判断当前空闲的非授权频段的集合 WS是否能满足基站 非授权频段上的带宽需求 |t/L£|13M, 由于 WS的总的带宽为 18M, 大于基站 在非授权频段的带宽需求, 因此, WS能够满足 |t/L£| , 第一频谱集合为 {10M, 8M} 。
3)判断第一频谱集合是否在基站的射频能力范围内, 在本应用例中, 需 要 1个射频链, 在基站的射频范围内, 因此, 第一频谱集合在基站的射频能力 范围内。
4 )判断 L£ _ CRF及 L£ _ )中是否包含能与第一频谱集合聚合的第四授权频 段集合, 在本应用例中, L£_CRF ={3M ( 704M~707M ) } , LB _D ={\ M ( 1900M-1910M ), 5M(1850M~1855M)} , 将 L£_CRF及 L£_ )中的频段与基 站在非授权频段上的带宽需求进行聚合, 确定聚合的带宽小于或等于 18M的 最大的组合情况,其中 3+13<5+13, 因此,为了最大化连续聚合宽带,将 L£_ ) 中 的 5M(1850M~1855M)频段与 第 一频语集合进行聚合 。 该 { 5M(1850M~1855M) }为第四授权频段集合中的授权频段。
5)将第一频谱集合 {10M, 8M}中非授权频段作为分配给基站使用的非授 权频段, 将第四授权频段集合中的授权频段 {5M(1850M~1855M)}与第一频谱 集合聚合, 确定为频谱分配方案, 具体的频谱分配方案为: 释放第四授权频段 集合中的授权频段 {5M(1850M~1855M)}, 在 Band64, Band65, Band66三个 非授权频段上聚合第四授权频段集合 {5M(1850M~1855M)}的带宽需求, 即将 该 5M(1850M~ 1855M)频段上的终端业务或处于连接态的终端切换到聚合后的 非授权频段上。
在本发明实施例中,中心控制单元接收到基站发送的带宽请求消息之后将 制定频谱分配方案, 并将频谱分配方案通过带宽请求响应消息反馈给基站,基 站将根据中心控制单元反馈的响应消息使用非授权频段及处理授权频段,请参 阅图 4, 为本发明实施例中动态频谱分配方法的实施例, 包括:
401、 发送带宽请求消息给中心控制单元, 带宽请求消息中包括基站的射 频能力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 基站的授 权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力的, 已聚 合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不共用射频 能力的, 已聚合的且允许动态使用的第二授权频段的集合;
当基站需要使用非授权频段时, 将发送带宽请求消息给中心控制单元, 其 中, 带宽请求消息中包括基站的射频能力, 基站非授权频段上的带宽需求, 及 基站的授权频段的集合,基站的授权频段的集合包括以下至少一项: 基站上和 非授权频段共用射频能力的, 已聚合的且允许动态使用的第一授权频段的集 合,基站上和非授权频段不共用射频能力的, 已聚合的且允许动态使用的第二 授权频段的集合, 此外, 带宽请求消息中还可以包含基站的地理位置信息, 基 站的发射功率, 基站系统版本标识等信息。
402、 接收中心控制单元反馈的包含频谱分配方案的带宽请求响应消息, 频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要将基站的授 权频段的集合中至少一个授权频段的带宽需求聚合到分配给基站使用的非授 权频段上;
中心控制单元接收到基站发送的带宽请求消息之后,将根据带宽请求消息 中包含的参数及当前空闲的非授权频段的集合确定频谱分配方案,在本发明实 施例中, 具体的频谱分配方法请参阅图 1至图 3所示实施例描述的内容,此处 不再赘述。 中心控制单元在确定频谱分配方案之后,将发送包含频谱分配方案 的带宽请求响应消息给基站, 因此,基站将接收到中心控制单元反馈的包含频 谱分配方案的带宽请求响应消息, 其中, 频谱分配方案用于指示分配给基站使 用的非授权频段信息,及需要将基站的授权频段的集合中至少一个授权频段的 带宽需求聚合到分配给基站使用的非授权频段上。 需要说明的是,在本发明实 施例中, 当中心控制单元确定频谱分配方案失败时, 中心控制单元将反馈包含 频谱分配失败的信息的带宽请求响应消息给基站,用于通知基站此次带宽请求 失败。
403、 根据频谱分配方案使用分配给基站使用的非授权频段及处理至少一 个授权频段的带宽需求。
基站接收到中心控制单元反馈的带宽请求响应消息之后,根据带宽请求响 应消息中包含的频谱分配方案使用分配给基站使用的非授权频段及处理至少 一个授权频段的带宽需求。
在本发明实施例中,若频谱分配方案指示需将至少一个授权频段的带宽需 求聚合到分配给基站使用的非授权频段上, 则基站将释放该至少一个授权频 段,并将授权频段上的终端业务或处于连接态的终端切换到分配给基站使用的 非授权频段上。
在本发明实施例中, 基站通过发送包含基站的射频能力, 基站非授权频段 上的带宽需求及基站的授权频段集合的带宽请求消息 ,使得中心控制单元能够 通过将授权频段的带宽需求聚合到非授权频段上,制定满足基站射频能力的频 谱分配方案, 降低了频谱分配方案失效的概率, 减少了需要使用的射频链的数 目。
为了更好的理解技术, 请参阅图 5 , 为本发明实施例中动态频谱分配方法 的实施例, 包括:
501、 发送带宽请求消息给中心控制单元, 带宽请求消息中包括基站的射 频能力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 基站的授 权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力的, 已聚 合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不共用射频 能力的, 已聚合的且允许动态使用的第二授权频段的集合;
502、 接收中心控制单元反馈的包含频谱分配方案的带宽请求响应消息, 频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要将基站的授 权频段的集合中至少一个授权频段的带宽需求聚合到分配给基站使用的非授 权频段上;
步骤 501与 502分别与图 4所示的步骤 401及 402描述的内容相同,此处 不再赘述。
503、 判断频语分配方案中是否需要将至少一个授权频段的带宽需求聚合 到非授权频段上, 若是, 则执行步骤 504, 若否, 则执行步骤 505; 频谱分配方案用于指示需要将基站的授权频段的集合中至少一个授权频 段的带宽需求聚合到分配给基站使用的非授权频段上,基站从带宽请求响应消 息中获取频谱分配方案,判断频语分配方案中是否需要将至少一个授权频段的 带宽需求聚合到非授权频段上。
504、 使用分配给基站的非授权频段, 释放至少一个授权频段, 并将至少 一个授权频段上的终端业务或处于连接态的终端切换到分配给基站使用的非 授权频段上;
若需要将授权频段的带宽需求聚合到非授权频段, 基站将释放授权频段, 将该授权频段上的终端业务或处于连接态的终端切换到非授权频段上,使用聚 合后的非授权频段。
505、 使用分配给基站的非授权频段。
若不需要将授权频段的带宽需求聚合到非授权频段上 ,基站将根据频谱分 配方案使用分配给基站的非授权频段。
此外,基站在根据带宽请求响应消息使用频段之后,还将发送带宽请求确 认消息, 该带宽请求确认消息中包含基站使用的频段。 而中心控制单元接收到 带宽请求确认消息之后,将更新非授权频段的占用情况, 或者中心控制单元通 知其他设备, 如数据库, 对非授权频段的占用情况进行更新。
在本发明实施例中, 通过将授权频段的带宽需求聚合到非授权频段中, 能 够有效的降低频谱分配方案失效的概率及减少基站所需要的射频链的数目,节 约资源。
请参阅图 6, 为本发明实施例中中心控制单元的实施例, 包括:
接收器 601 , 用于接收基站发送的带宽请求消息, 带宽请求消息中包括基 站的射频能力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 基 站的授权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力 的、 已聚合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不 共用射频能力的、 已聚合的且允许动态使用的第二授权频段的集合;
方案制定单元 602, 用于根据基站的射频能力、 基站非授权频段上的带宽 需求、基站的授权频段的集合及获取到的当前空闲的非授权频段的集合确定频 谱分配方案; 该方案制定单元 602具体可以是处理器;
发送器 603 , 用于发送包含频谱分配方案的带宽请求响应消息, 频谱分配 方案用于指示分配给基站使用的非授权频段信息,及需要将基站的授权频段的 集合中至少一个授权频段的带宽需求聚合到分配给基站使用的非授权频段上。
在本发明实施例中,发送器 601接收基站发送的带宽请求消息, 方案制定 单元 602将根据发送器 601接收到的带宽请求消息及获取到的当前空闲的非授 权频段的集合确定频谱分配方案,发送器 603将包含频谱分配方案的带宽请求 响应消息发送给基站。
在本发明实施例中, 中心控制单元接收带宽请求消息, 并根据带宽请求消 息中包含的基站的射频能力,基站非授权频段的带宽需求、基站的授权频段集 合的带宽请求消息, 及获取到的当前空闲的非授权频段集合确定频谱分配方 案, 使得中心控制单元确定的频谱分配方案能够在基站的射频能力的范围内, 降低了频谱分配方案失效的概率,并能够在制定频谱分配方案时将授权频段的 带宽需求聚合到非授权频段上, 有效的减少射频链的数目, 节约资源。
为了更好的理解技术, 请参阅图 7, 为本发明实施例中中心控制单元的实 施例, 包括如图 6所示的接收器 601 , 方案制定单元 602, 发送器 603 , 且与 图 6所示实施例描述的内容相同, 此处不再赘述。
其中, 方案制定单元 602包括:
第一判断单元 701 , 用于判断当前空闲的非授权频段的集合是否能满足基 站非授权频段上的带宽需求;
第一获取单元 702, 用于当当前空闲的非授权频段的集合能满足基站非授 权频段上的带宽需求时,从当前空闲的非授权频段的集合中获取满足基站非授 权频段上的带宽需求的第一频谱集合;
第二判断单元 703 , 用于判断第一频谱集合是否在基站的射频能力的范围 内;
第一处理单元 704, 用于当第一频谱集合不在基站的射频能力的范围内 时,判断第一授权频段的集合中是否包含与第一频谱集合中的非授权频段公用 射频能力的第三授权频段集合, 若是, 则判断第一频谱集合是否能聚合第三授 权频段集合中授权频段的带宽需求,且聚合后再基站的射频能力的范围内, 若 是, 则确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给基站 使用的非授权频段,将第三授权频段集合中的授权频段的带宽需求聚合到第一 频谱集合中的非授权频段上;
第二处理单元 705 , 用于当第一频谱集合在基站的射频能力的范围内时, 确定频谱分配方案为:将第一频谱集合中的非授权频段作为分配给基站使用的 非授权频段; 或者当第一频谱集合在基站的射频能力的范围内时, 判断第一授 权频段的集合,及第二授权频段的集合中是否包含能与第一频谱集合中的非授 权频段聚合的第四授权频段集合, 若是, 则确定频谱分配方案为: 将第一频谱 集合中的非授权频段作为分配给基站使用的非授权频段,将第四授权频段集合 中的授权频段的带宽需求聚合到第一频谱集合中的非授权频段上。
在本发明实施例中,中心控制单元的接收器 601接收到基站发送的带宽请 求消息后, 方案制定单元 602 将制定频谱分配方案, 具体为: 第一判断单元 701 判断当前空闲的非授权频段的集合是否能满足基站非授权频段上的带宽 需求, 若当前空闲的非授权频段的集合能满足基站非授权频段上的带宽需求 时,第一获取单元 702从当前空闲的非授权频段的集合中获取满足基站非授权 频段上的带宽需求的第一频谱集合 ,接着第二判断单元 703判断获取到的第一 频谱集合是否在基站的射频能力的范围内,当第一频谱集合不在基站的射频能 力的范围内时,第一处理单元 704判断第一授权频段的集合中是否包含与第一 频谱集合中的非授权频段共用射频能力的第三授权频段集合 ,若有第三授权频 段集合 ,则判断第一频谱集合是否能聚合第三授权频段集合中授权频段的带宽 需求, 且聚合后在基站的射频能力的范围内, 若是, 则确定频谱分配方案为: 将第一频谱集合中的非授权频段作为分配给基站使用的非授权频段,将第三授 权频段集合中的授权频段的带宽需求聚合到第一频谱集合中的非授权频段上; 当第一频谱集合在基站的射频能力的范围内时,第二处理单元 705确定频谱分 配方案为: 将第一频谱集合中的非授权频段作为分配给基站使用的非授权频 段, 或者, 判断第一授权频段的集合, 及第二授权频段的集合中是否包含能与 第一频谱集合中的非授权频段聚合的第四授权频段集合, 若是, 则确定频谱分 配方案为: 将第一频谱集合中的非授权频段作为分配给基站使用的非授权频 段,将第四授权频段集合中的授权频段的带宽需求聚合到第一频谱集合中的非 授权频段上。
在本发明实施例中, 中心控制单元在制定频谱分配方案时,根据基站的射 频能力、基站非授权频段上的带宽需求,基站的授权频段的集合及当前空闲的 非授权频段的集合确定频谱分配方案,使得得到的频谱分配方案能够满足基站 的射频能力,且可通过将授权频段的带宽需求聚合到非授权频段中,有效减少 射频链的数目, 有效的节约资源。
请参阅图 8, 为本发明实施例中基站的实施例, 包括:
发送器 801 , 用于发送带宽请求消息给中心控制单元, 带宽请求消息中包 括基站的射频能力,基站非授权频段上的带宽需求,及基站的授权频段的集合, 基站的授权频段的集合包括以下至少一项:基站上和非授权频段共用射频能力 的、 已聚合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不 共用射频能力的、 已聚合的且允许动态使用的第二授权频段的集合;
接收器 802, 用于接收中心控制单元反馈的包含频谱分配方案的带宽请求 响应消息, 频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要 将基站的授权频段的集合中至少一个授权频段的带宽需求聚合到分配给基站 使用的非授权频段上;
使用单元 803 , 用于根据频谱分配方案使用分配给基站使用的非授权频段 及处理至少一个授权频段的带宽需求。 该使用单元 803可以是处理器。
在本发明实施例中,基站上的发送器 801发送带宽请求消息给中心控制单 元, 并由接收器 802接收中心控制单元反馈的带宽请求响应消息,基站的使用 单元 803则将根据带宽请求响应消息中包含的频谱分配方案使用频段。
在本发明实施例中, 基站在发送的带宽请求消息中携带基站的射频能力、 基站非授权频段的带宽需求,基站的授权频段的集合,使得中心控制单元能够 根据带宽请求消息制定出满足基站射频能力的频谱分配方案,降低了频谱分配 方案失效的概率,且还可将授权频段的带宽需求聚合到非授权频段上, 以减少 所需要的射频链的数目, 节约资源。
为了更好的理解图 8所示的基站, 请参阅图 9, 为本发明实施例中基站的 实施例, 包括:
如图 8所示的发送器 801 , 接收器 802, 使用单元 803 , 且与图 8所示的 实施例描述的内容相同, 此处不再赘述。
其中, 使用单元 803包括:
判断单元 901 , 用于判断频谱分配方案是否需要将至少一个授权频段的带 宽需求聚合到分配给基站使用的非授权频段上;
处理单元 902, 用于当需要将至少一个授权频段的带宽需求聚合到分配给 基站使用的授权频段上时, 则释放至少一个授权频段, 并将至少一个授权频段 上的终端业务或处于连接态的终端切换到聚合后非授权频段上。
在本发明实施例中, 基站发送器 801发送带宽请求消息之后, 接收器 802 将接收到中心控制单元反馈的包含频谱分配方案的带宽请求响应消息,判断单 元 901 判断频谱分配方案是否需要将至少一个授权频段的带宽需求聚合到分 配给基站使用的非授权频段上,当需要将至少一个授权频段的带宽需求聚合到 分配给基站使用的授权频段上时, 处理单元 902释放至少一个授权频段, 并将 至少一个授权频段上的终端业务或处于连接态的终端切换到聚合后非授权频 段上, 若否, 则根据频谱分配方案使用分配给基站使用的非授权频段。
在本发明实施例中,,基站在发送的带宽请求消息中携带基站的射频能力、 基站非授权频段的带宽需求,基站的授权频段的集合,使得中心控制单元能够 根据带宽请求消息制定出满足基站射频能力的频谱分配方案,降低了频谱分配 方案失效的概率,且还可将授权频段的带宽需求聚合到非授权频段上, 以减少 所需要的射频链的数目, 节约资源。
请参阅图 10, 为本发明实施例中频谱分配系统的实施例, 包括: 若图 6或 7所示实施例描述的中心控制单元 1001 , 及如图 8或图 9所示 实施例描述的基站 1002。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤 是可以通过程序来指令相关的硬件完成,所述的程序可以存储于一种计算机可 读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘或光盘等。
以上对本发明所提供的动态频谱分配方法、 中心控制单元、基站及频谱分 配系统, 进行了详细介绍, 对于本领域的一般技术人员, 依据本发明实施例的 思想, 在具体实施方式及应用范围上均会有改变之处, 综上所述, 本说明书内 容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种动态频语分配方法, 其特征在于, 包括:
接收基站发送的带宽请求消息, 所述带宽请求消息中包括基站的射频能 力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 所述基站的授 权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力的、 已聚 合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不共用射频 能力的、 已聚合的且允许动态使用的第二授权频段的集合;
根据所述基站的射频能力、所述基站非授权频段上的带宽需求、所述基站 的授权频段的集合及获取到的当前空闲的非授权频段的集合确定频谱分配方 案;
发送包含所述频谱分配方案的带宽请求响应消息,所述频谱分配方案用于 指示分配给基站使用的非授权频段信息,及需要将所述基站的授权频段的集合 中至少一个授权频段的带宽需求聚合到所述分配给基站使用的非授权频段上。
2、 根据权利要求 1所述的方法, 其特征在于, 所述根据所述基站的射频 能力、所述基站非授权频段上的带宽需求、所述基站的授权频段的集合及获取 到的当前空闲的非授权频段的集合确定频谱分配方案包括:
判断所述当前空闲的非授权频段的集合是否能满足所述基站非授权频段 上的带宽需求;
若是,则从所述当前空闲的非授权频段的集合中获取满足所述基站非授权 频段上的带宽需求的第一频谱集合;
判断所述第一频谱集合是否在所述基站的射频能力的范围内;
若所述第一频谱集合在所述基站的射频能力的范围内,则确定频谱分配方 案为:将所述第一频谱集合中的非授权频段作为所述分配给基站使用的非授权 频段。
3、 根据权利要求 2所述的方法, 其特征在于, 所述方法还包括: 若所述第一频谱集合不在所述基站的射频能力的范围内,判断所述第一授 权频段的集合中是否包含与所述第一频谱集合中的非授权频段共用射频能力 的第三授权频段集合;
若是,则判断所述第一频谱集合是否能聚合所述第三授权频段集合中授权 频段的带宽需求, 且聚合后在基站的射频能力的范围内, 若是, 则确定所述频 谱分配方案为:将所述第一频谱集合中的非授权频段作为所述分配给基站使用 的非授权频段 ,并将第三授权频段集合中授权频段的带宽需求聚合到所述第一 频谱集合中的非授权频段上。
4、 根据权利要求 2所述的方法, 其特征在于, 所述方法还包括: 若所述第一频谱集合在所述基站的射频能力的范围内,判断所述第一授权 频段的集合,及所述第二授权频段的集合中是否包含能与第一频谱集合中的非 授权频段聚合的第四授权频段集合;
若是, 则确定频谱分配方案为: 将所述第一频谱集合中的非授权频段作为 所述分配给基站使用的非授权频段,将所述第四授权频段集合中的授权频段的 带宽需求聚合到所述分配给基站使用的非授权频段上。
5、 一种动态频语分配方法, 其特征在于, 包括:
发送带宽请求消息给中心控制单元,所述带宽请求消息中包括基站的射频 能力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 所述基站的 授权频段的集合包括以下至少一项: 基站上和非授权频段共用射频能力的、 已 聚合的且允许动态使用的第一授权频段的集合,基站上和非授权频段不共用射 频能力的、 已聚合的且允许动态使用的第二授权频段的集合;
接收所述中心控制单元反馈的包含频谱分配方案的带宽请求响应消息,所 述频谱分配方案用于指示分配给基站使用的非授权频段信息,及需要将所述基 站的授权频段的集合中至少一个授权频段的带宽需求聚合到所述分配给基站 使用的非授权频段上;
根据所述频谱分配方案使用所述分配给基站使用的非授权频段及处理所 述至少一个授权频段的带宽需求。
6、 根据权利要求 5所述的方法, 其特征在于, 所述根据所述频谱分配方 案使用所述分配给基站使用的非授权频段及处理所述至少一个授权频段的带 宽需求包括:
判断所述频谱分配方案是否需要将所述至少一个授权频段的带宽需求聚 合到所述分配给基站使用的非授权频段上;
若是, 则使用分配给基站的非授权频段, 释放所述至少一个授权频段, 并 将所述至少一个授权频段上的终端业务或处于连接态的终端切换到所述分配 给基站使用的非授权频段上。
7、 一种中心控制单元, 其特征在于, 包括:
接收器, 用于接收基站发送的带宽请求消息, 所述带宽请求消息中包括基 站的射频能力, 基站非授权频段上的带宽需求, 及基站的授权频段的集合, 所 述基站的授权频段的集合包括以下至少一项:基站上和非授权频段共用射频能 力的、 已聚合的且允许动态使用的第一授权频段的集合,基站上和非授权频段 不共用射频能力的、 已聚合的且允许动态使用的第二授权频段的集合;
方案制定单元, 用于根据所述基站的射频能力、所述基站非授权频段上的 带宽需求、所述基站的授权频段的集合及获取到的当前空闲的非授权频段的集 合确定频谱分配方案;
发送器, 用于发送包含所述频谱分配方案的带宽请求响应消息, 所述频谱 分配方案用于指示分配给基站使用的非授权频段信息,及需要将所述基站的授 权频段的集合中至少一个授权频段的带宽需求聚合到所述分配给基站使用的 非授权频段上。
8、 根据权利要求 7所述的中心控制单元, 其特征在于, 所述方案制定单 元包括:
第一判断单元,用于判断所述当前空闲的非授权频段的集合是否能满足所 述基站非授权频段上的带宽需求;
第一获取单元,用于当所述当前空闲的非授权频段的集合能满足所述基站 非授权频段上的带宽需求时,从所述当前空闲的非授权频段的集合中获取满足 所述基站非授权频段上的带宽需求的第一频谱集合;
第二判断单元,用于判断所述第一频谱集合是否在所述基站的射频能力的 范围内;
第一处理单元,用于当所述第一频谱集合不在所述基站的射频能力的范围 内时,判断所述第一授权频段的集合中是否包含与所述第一频谱集合中的非授 权频段公用射频能力的第三授权频段集合, 若是, 则判断所述第一频谱集合是 否能聚合所述第三授权频段集合中授权频段的带宽需求,且聚合后再基站的射 频能力的范围内, 若是, 则确定所述频谱分配方案为: 将所述第一频谱集合中 的非授权频段作为所述分配给基站使用的非授权频段,将第三授权频段集合中 的授权频段的带宽需求聚合到所述第一频谱集合中的非授权频段上;
第二处理单元,用于当所述第一频谱集合在所述基站的射频能力的范围内 时,确定频谱分配方案为: 将所述第一频谱集合中的非授权频段作为所述分配 给基站使用的非授权频段; 或者, 当所述第一频谱集合在所述基站的射频能力 的范围内时, 判断所述第一授权频段的集合,及所述第二授权频段的集合中是 否包含能与第一频谱集合中的非授权频段聚合的第四授权频段集合, 若是, 则 确定频谱分配方案为:将所述第一频谱集合中的非授权频段作为所述分配给基 站使用的非授权频段,将所述第四授权频段集合中的授权频段的带宽需求聚合 到所述第一频谱集合中的非授权频段上。
9、 一种基站, 其特征在于, 包括:
发送器, 用于发送带宽请求消息给中心控制单元, 所述带宽请求消息中包 括基站的射频能力,基站非授权频段上的带宽需求,及基站的授权频段的集合, 所述基站的授权频段的集合包括以下至少一项:基站上和非授权频段共用射频 能力的、 已聚合的且允许动态使用的第一授权频段的集合,基站上和非授权频 段不共用射频能力的、 已聚合的且允许动态使用的第二授权频段的集合;
接收器,用于接收所述中心控制单元反馈的包含频谱分配方案的带宽请求 响应消息, 所述频谱分配方案用于指示分配给基站使用的非授权频段信息,及 需要将所述基站的授权频段的集合中至少一个授权频段的带宽需求聚合到所 述分配给基站使用的非授权频段上;
使用单元,用于根据所述频谱分配方案使用所述分配给基站使用的非授权 频段及处理所述至少一个授权频段的带宽需求。
10、 根据权利要求 9所述的方法, 其特征在于, 所述使用单元包括: 判断单元,用于判断所述频谱分配方案是否需要将所述至少一个授权频段 的带宽需求聚合到所述分配给基站使用的非授权频段上;
处理单元,用于当需要将所述至少一个授权频段的带宽需求聚合到所述分 配给基站使用的授权频段上时, 则释放所述至少一个授权频段, 并将所述至少 一个授权频段上的终端业务或处于连接态的终端切换到聚合后非授权频段上。
11、 一种频语分配系统, 其特征在于, 包括: 如权利要求 7或 8所述的中心控制单元, 及如权利要求 9或 10所述的基
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