WO2015070607A1 - 一种实现频谱资源分配的方法及装置 - Google Patents
一种实现频谱资源分配的方法及装置 Download PDFInfo
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- WO2015070607A1 WO2015070607A1 PCT/CN2014/080330 CN2014080330W WO2015070607A1 WO 2015070607 A1 WO2015070607 A1 WO 2015070607A1 CN 2014080330 W CN2014080330 W CN 2014080330W WO 2015070607 A1 WO2015070607 A1 WO 2015070607A1
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- 238000001228 spectrum Methods 0.000 title claims abstract description 310
- 238000000034 method Methods 0.000 title claims abstract description 60
- 230000002452 interceptive effect Effects 0.000 claims abstract description 8
- 238000007726 management method Methods 0.000 claims description 202
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 22
- 238000013468 resource allocation Methods 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 2
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- 238000010586 diagram Methods 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
- H04W16/10—Dynamic resource partitioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
- H04W72/563—Allocation or scheduling criteria for wireless resources based on priority criteria of the wireless resources
Definitions
- the present invention relates to the field of wireless communications, and more particularly to a method and apparatus for implementing spectrum resource allocation. Background technique
- the reconfiguration management node (such as the spectrum coordinator (SC) in the ETSI RRS) performs spectrum resource allocation management on its subordinate secondary user equipment (such as the base station), because the reconfiguration management node masters the subordinates.
- SC spectrum coordinator
- the reconfiguration management node masters the subordinates.
- the reconfiguration management node is a secondary system or a secondary system operator. When borrowing the primary system idle spectrum resources, the reconfiguration management node is in a secondary system of overlapping or adjacent coverage areas, and these The idle spectrum resources obtained by the secondary system from the geographic resource database (GLDB) are the same. As shown in FIG.
- FIG. 1 is a schematic diagram of a scenario in which the reconfiguration node of the related art borrows the same idle spectrum resource, where
- the system A includes: a spectrum coordinator SCa and base stations a1 (BSal), BSa2, BSa3, and the secondary system B includes: SCb and base stations bl (BSbl), BSb2, BSb3.
- the BSal application is required to allocate the primary system idle spectrum resource, wherein BSal To borrow the idle spectrum resource through the reconfiguration management node SCa to which it belongs, in order to distinguish the difference from other secondary user equipments in the A system and the secondary user equipments of other systems, the node is defined as a reconfiguration node.
- BS al is under the jurisdiction of SC1.
- the BS al Since the BS al is in the overlapping (or adjacent) coverage area of the secondary system A and the secondary system B, if the BSbl in the overlapping coverage area appears to need to borrow the idle spectrum resource, if it is to the location
- the same primary system borrows idle spectrum resources, and the primary system idle spectrum resources borrowed by BSal and BSbl are the same. Both BSal and BSbl borrow the same idle spectrum resource, and the BSbl at this time is the interference reconfiguration node with respect to BSal.
- the idle spectrum resource borrowed by the SC1 for the reconfiguration node BS2 cannot simultaneously satisfy the simultaneous use of the spectrum resource by the BS1 and the BS2, the two base stations may cause interference between each other. In severe cases, it even causes problems that spectrum resources cannot be used.
- an embodiment of the present invention discloses a method and apparatus for implementing spectrum resource allocation.
- the management of the idle resources of the primary system can be implemented to avoid interference when borrowing the same spectrum resources when borrowing idle system resources.
- the embodiment of the invention provides a method for realizing the allocation of the spectrum resource.
- the method includes:
- the reconfiguration management node to which the reconfiguration node belongs acquires the primary system idle spectrum resource information of the reconfiguration node, and the borrowing information of the interference reconfiguration management node to the primary system idle spectrum resource; according to the borrowing information, the reconfiguration management node determines Reconfigure the free spectrum resources available to the node and allocate the available idle spectrum resources to the reconfiguration node.
- the method further includes: when the primary system idle spectrum resources are all borrowed, the reconfiguration management node negotiates with the interference reconfiguration management node to obtain spectrum resources required by the reconfiguration node.
- the negotiating comprises: negotiating according to the priority of the reconfiguration management node and the interference reconfiguration management node, or the operator policy.
- the method further comprises:
- the reconfiguration node is compatible with the secondary user equipment of the interference reconfiguration management node to use the idle spectrum resource, and sets a transmission parameter according to the interference information, and ends; if it is not compatible, continues to execute Negotiation.
- the reconfiguration management node obtains, from the geographic resource database GLDB, primary system idle spectrum resource information of the reconfiguration node, and borrowing information of the interference reconfiguration management node for the primary system idle spectrum resource.
- the method further includes: when the borrowing information of the interference reconfiguration management node of the primary system idle spectrum resource does not exist in the GLDB,
- the method for sensing measurement determines the borrowing information of the secondary user equipment of the primary system under the interference reconfiguration management node, and obtains the borrowing information of the idle system resource of the primary system by the interference reconfiguration management node.
- the method further includes: when the borrowing information of the interference reconfiguration management node of the primary system idle spectrum resource does not exist in the GLDB,
- the parameter performs interference calculation to determine an interference reconfiguration management node; the reconfiguration management node receives the frequency usage of the subordinate user equipment that is interfered by the interference reconfiguration management node and has an interference relationship with the reconfiguration node pseudo configuration parameter Information, and determine The borrowing information of the management node to the idle spectrum resource of the primary system is reconfigured for the interference.
- the potential interference reconfiguration management node refers to a reconfiguration management node whose subordinate user equipment and the reconfiguration node may interfere with each other; the information is determined in advance and saved in the reconfiguration management node. And/or provided by the GLDB when feeding back the list of available channels for the reconfiguration node.
- the interference reconfiguration management node comprises: another reconfiguration management node overlapping or adjacent to the reconfiguration management node.
- the borrowing information includes: a usage state of the idle spectrum resource borrowed by the interference reconfiguration management node for the idle spectrum resource;
- the usage status is: the location of the secondary user equipment that is using the idle spectrum resource, and/or coverage, and/or device type, and/or usage duration, and/or transmission power, and/or , antenna parameters.
- the interference reconfiguration management node refers to: a reconfiguration management node whose secondary user equipment and the secondary user equipment of the reconfiguration management node interfere with each other by borrowing the idle spectrum resources of the primary system;
- the use of the available idle spectrum resources by the reconfiguration node does not cause interference with other secondary user equipments.
- the embodiment of the present invention further includes an apparatus for implementing spectrum resource allocation, including: an acquiring unit, configured to acquire information about idle spectrum resources of a primary system, and borrowing information of an idle reconfiguration management node to idle spectrum resources of a primary system, and send To the distribution unit;
- an allocating unit configured to allocate, according to the information sent by the acquiring unit, the primary system idle spectrum resource that is not borrowed by the interference reconfiguration management node to the reconfiguration node.
- the apparatus further comprises a negotiating unit configured to: when the primary system idle spectrum resources are all borrowed, the reconfiguration management node and the interference reconfiguration management node according to the priority of the reconfiguration node and the interference reconfiguration node, or the operator The policy negotiates to obtain the spectrum resources required by the reconfiguration node.
- a negotiating unit configured to: when the primary system idle spectrum resources are all borrowed, the reconfiguration management node and the interference reconfiguration management node according to the priority of the reconfiguration node and the interference reconfiguration node, or the operator The policy negotiates to obtain the spectrum resources required by the reconfiguration node.
- the device further includes a compatibility determining unit, connected between the obtaining unit and the negotiating unit, And determining, by using the borrowing information and the transmitting parameter of the spectrum resource required by the reconfiguration node, the interference information, and determining whether the reconfiguration node can be compatible with the subordinate user equipment of the interference reconfiguration management node by using the interference information.
- the reconfiguration node is compatible with the secondary user equipment of the interference reconfiguration management node to use the idle spectrum resource, and sets the transmission parameters according to the interference information, and ends; if it is not compatible, the negotiation is continued.
- the obtaining unit is configured to acquire the primary system idle spectrum resource information from the geographic resource database GLDB, and the borrowing information of the interference reconfiguration management node to the primary system idle spectrum resource.
- the apparatus further includes a sensing measurement unit configured to set a perceptual measurement calculation method to obtain an interference reconfiguration management node to the main system when the GLDB does not include the borrowing information of the interference reconfiguration management node to the primary system idle spectrum resource. Borrowing information for idle spectrum resources.
- the apparatus further includes a pseudo-configuration unit configured to: when the GLDB does not include the borrowing information of the interference reconfiguration management node to the idle spectrum resource of the primary system,
- the potential interference reconfiguration management node refers to a reconfiguration management node whose subordinate user equipment and the reconfiguration node may interfere with each other; the information is determined in advance and saved in the reconfiguration management node. And/or provided by the GLDB when feeding back the list of available channels for the reconfiguration node.
- the borrowing information includes: a usage state of the idle spectrum resource borrowed by the interference reconfiguration management node for the idle spectrum resource;
- the usage status is: the location of the secondary user equipment that is using the idle spectrum resource, and/or coverage, and/or device type, and/or usage duration, and/or transmission power, and/or , antenna parameters.
- the interference reconfiguration management node refers to: a reconfiguration management node whose secondary user equipment and the secondary user equipment of the reconfiguration management node interfere with each other by borrowing the idle spectrum resources of the primary system;
- the use of the available idle spectrum resources by the reconfiguration node does not cause interference with other secondary user equipments.
- the embodiment of the present invention further provides a computer program, including program instructions, when the program instruction is executed by the reconfiguration management node, so that the reconfiguration management node can execute the above method.
- the invention also provides a carrier carrying the above computer program.
- the embodiment of the present application provides a method for realizing spectrum resource allocation.
- the method includes: obtaining, by the reconfiguration management node to which the reconfiguration node belongs, the information about the idle spectrum resource of the primary system of the reconfiguration node, and The interference reconfiguration management node borrows information about the idle spectrum resource of the primary system; according to the borrowing information, the reconfiguration management node determines the idle spectrum resource available to the reconfiguration node, and allocates the spectrum resource to the reconfiguration node; the interference reconfiguration management node is: The secondary user equipment of the subordinate user equipment and the reconfiguration management node has other reconfiguration management nodes that interfere with each other by borrowing the idle spectrum resources of the primary system.
- the application also includes apparatus corresponding to the method of the embodiments of the present invention.
- the method and device of the embodiments of the present invention implement the allocation management of the idle spectrum resources of the primary system, and avoid the spectrum interference between the reconfiguration node and the secondary user equipment of the interference reconfiguration management node caused by borrowing the idle spectrum resources of the primary system. .
- the method of the embodiment of the present invention further includes obtaining, by the method of perceptual measurement and the configuration, the borrowing of the idle spectrum resource by the interference reconfiguration management node.
- the application management of the idle spectrum resources to the secondary system is implemented by using the negotiation method.
- FIG. 1 is a schematic diagram of a scenario in which a related art reconfiguration node has borrowed the same idle spectrum resource
- FIG. 2 is a flowchart of an embodiment of a method for implementing spectrum resource allocation according to the present invention
- FIG. 3 is a flowchart of a method for implementing a first embodiment of a spectrum resource allocation of a reconfiguration node according to the present invention
- FIG. 4 is a flowchart of a method for implementing a second embodiment of a spectrum resource allocation of a reconfiguration node according to the present invention
- FIG. 6 is a flowchart of a method for implementing a spectrum resource allocation of a reconfiguration node according to a fourth embodiment of the present invention
- FIG. 7 is a structural block diagram of an apparatus for implementing spectrum resource allocation according to the present invention.
- a method for realizing spectrum resource allocation when a reconfiguration node needs to borrow a spectrum resource of a primary system, includes: Step 200: Reconfiguring a node The associated reconfiguration management node acquires the primary system idle spectrum resource information of the reconfiguration node, and the borrowing information of the interference reconfiguration management node to the primary system idle spectrum resource.
- the reconfiguration management node obtains the primary system idle spectrum resource information of the reconfiguration node from the geographic location information database GLDB, and the borrowing information of the interference reconfiguration management node to the idle spectrum resource of the primary system.
- the interference reconfiguration management node is: the secondary user equipment of the subordinate user equipment and the reconfiguration management node have other reconfiguration management nodes that interfere with each other due to borrowing the idle spectrum resources of the primary system.
- the interference reconfiguration management node may be another reconfiguration management node that overlaps or is adjacent to the reconfiguration management node.
- the method further includes: determining, by using the method of perceptual measurement, the borrowing of the idle spectrum resource of the main system by the interference reconfiguration management node information.
- Perceptual measurement mainly calculates and analyzes the use of the spectrum through the transmission parameters such as power and energy of the communication channel, and obtains the use of the spectrum resources.
- the results obtained by the perceptual measurement include one or more of the following: the identity of the interference reconfiguration node, and/or the size of the interference, and/or the identity of the reconfiguration management node to which the interference reconfiguration node belongs, not here Let me repeat.
- the method further includes:
- the spectrum resource parameters to be configured for the reconfiguration node are respectively sent to all potential interference reconfiguration management nodes, and the transmission parameters of the subordinate user equipment of the management node of the management node are all configured by the spectrum resource parameters to be configured.
- the potential interference reconfiguration management node refers to a reconfiguration management node whose subordinate user equipment and the reconfiguration node may interfere with each other; the information is determined in advance and saved in the reconfiguration management node, and / Or, provided by the GLDB when feeding back the list of available channels for the reconfiguration node.
- Step 201 According to the borrowing information, the reconfiguration management node determines an idle spectrum resource available to the reconfiguration node, and allocates the spectrum resource to the reconfiguration node.
- the available idle spectrum resources are:
- the reconfiguration node uses the primary system idle spectrum resources and does not interfere with other secondary user equipments.
- the borrowing information includes: a usage state of the idle spectrum resource borrowed by the interference reconfiguration management node for the idle spectrum resource, the usage state is: a location of the secondary user equipment that is using the idle spectrum resource, and/or coverage, and / or, device type, and / or, duration of use, and / or, transmit power, and / or antenna parameters.
- the method further includes:
- the reconfiguration management node negotiates with the interference reconfiguration management node to obtain the spectrum resources required by the reconfiguration node.
- the negotiation includes: negotiating according to the priority of the reconfiguration management node and the interference reconfiguration management node, or the operator policy.
- the priority of the reconfiguration management node can be determined by the priority of its subordinate users and the number of high priority users.
- the SC1 requesting the resource negotiates with the interfering SC2 and provides its priority information, such as the priority level of 1 (the highest level). After the interference SC2 receives the negotiation message, the priority of the SC1 is compared with its own priority. If the SC2 priority level is lower than SC1, the SC2 yields the idle spectrum resource to the SC1. It should be noted that the method of using priority or operator strategy is only to illustrate the degree of demand in the spectrum resource borrowing process, and is not to limit the negotiation of only these two kinds of basis.
- the required frequency resource may be an independent spectrum resource or a spectrum resource that is shared with the interference reconfiguration node without causing interference.
- interference information is calculated by borrowing information and transmitting parameters of spectrum resources required by the reconfiguration node, and determining whether the reconfiguration node can be compatible with the subordinate user equipment of the interference reconfiguration management node by using the interference information Spectrum resources borrowed by the user equipment;
- the reconfiguration node is compatible with the secondary user equipment of the interference reconfiguration management node to use the idle spectrum resource, and sets the transmission parameters according to the interference information, and ends; if it is not compatible, the negotiation is continued.
- FIG. 3 is a flowchart of a method for implementing a first embodiment of a spectrum resource allocation of a reconfiguration node according to the present invention.
- the GLDB does not include the secondary system idle spectrum resource borrowing information of the primary system.
- BS1 When the reconfiguration node (BS1) under the secondary system needs to borrow the primary system spectrum resource because of the service requirement, BS1 sends a request to borrow the idle spectrum resource to the reconfiguration management node (SC1).
- SC1 reconfiguration management node
- the secondary system SC obtains the borrowing of the idle spectrum resources of the primary system by the subordinate secondary user equipment (including the reconfiguration node and the interference reconfiguration node). If borrowed and recorded in the GLDB, the GLDB will include the primary.
- Step 300: The SC1 to which the reconfiguration node BS1 belongs acquires the idle spectrum resource information of the primary system.
- GLDB gives the transmission parameter requirements for each segment based on the protection of the main system.
- the maximum allowable transmit power of fl is 40dBm, correspondingly, £2: 30dBm, ⁇ : 50dBm.
- Step 301 Obtain, by the method of perceptual measurement, the borrowing information of the idle reconfiguration management node for the idle spectrum resource.
- the sensing measurement mainly uses the transmission parameters such as power or energy, or other data to indirectly obtain the channel usage state. How to perceive these parameters can be referred to the prior art, and will not be described here.
- the SC1 configuration performs a perceptual measurement of fl, £2, ⁇ to determine if other secondary systems are borrowing the free spectrum resource. It is determined by measurement that, in the first embodiment, there is a secondary user equipment BS2 on the idle spectrum fl (the reconfiguration management node to which it belongs is SC2), and there is a secondary user equipment BS3 on the £2 (the weight to which it belongs)
- the configuration management node is SC3), and there is a secondary user equipment BS4 on ⁇ (the reconfiguration management node to which it belongs is SC4) (the fixed location in the message sent by the BS indicates the SC information to which it belongs in a fixed format), here SC2, SC3, and SC4 are all interference reconfiguration management nodes.
- Step 302 The primary system idle spectrum resource is borrowed, and the reconfiguration management node negotiates with the interference reconfiguration management node. According to the priority of the reconfiguration management node and the interference reconfiguration management node, Or negotiate with the operator's strategy.
- SC1 first asks whether SC2 can give up the spectrum fl, SC2 and SC1 have the same priority, and no other idle spectrum resources are available, so the reply is rejected. SC1 then asks whether SC3 can give up the spectrum £2, and there is still f5 in the list of idle spectrum resources of SC3, which is not used by other SCs, so SC3 can re-allocate to f5, and let the SCI negotiate the frequency of £2. . Through this step, SC1 obtains the borrowing of the idle spectrum resource £2 for the BS1 reconfiguration node by negotiation.
- Step 303 SC1 applies to the primary system and allocates to the BS1 idle spectrum resource £.
- BS1 After obtaining the borrowing of the idle spectrum resource £, BS1 feeds back the update information to SC1, and SC1 sends the BS1 frequency usage information to the geographical location database GLDB.
- SC1 After obtaining the borrowing of the idle spectrum resource £, BS1 feeds back the update information to SC1, and SC1 sends the BS1 frequency usage information to the geographical location database GLDB.
- FIG. 4 is a flowchart of a method for implementing a second embodiment of a spectrum resource allocation of a reconfiguration node according to the present invention.
- BS1 in a secondary system needs to borrow spectrum resources of a primary system due to service requirements
- BS1 sends a borrowing to SC1.
- the idle spectrum resource request, at this time, the GLDB does not include the borrowing information of the interference reconfiguration management node for the idle spectrum resource.
- Step 400 The SC1 to which the reconfiguration node BS1 belongs acquires the idle spectrum resource information of the primary system.
- Table 2 shows the list of idle spectrum resource information.
- GLDB gives the transmission parameter requirements for each segment based on the protection of the main system.
- the maximum allowable transmit power of fl is 40dBm, correspondingly, £2: 30dBm, ⁇ : 50dBm.
- Step 401 Determine, by using the method to be configured, obtaining borrowing information of the idle spectrum resource by the interference reconfiguration management node, and determining, before the negotiation, that the subordinate user equipment of the interference reconfiguration management node is compatible with the spectrum borrowed by the subordinate user equipment. Resources.
- SC1 sends spectrum pseudo configuration information to its associated SC (SC2, SC3, SC4), and SC1 indicates in the message that the frequency fl, the location of BS1, and the transmit power will be configured for BS1; Collision, after receiving the message from SC1, SC2-SC4 gives a reply within a certain time (such as 2s) if there is a conflict:
- SC2 replies to SC1 indicating that its subordinate node BS2 is using the frequency fl, And interfere with each other with BS1. Therefore, SC1 continues to interrogate the use of frequency £2 in the same manner, and does not receive any response from the relevant SC at the predetermined time (2s), so SC1 determines that £2 is available.
- SC1 obtains the free spectrum resource information that can be borrowed for BS1.
- Step 402 SC1 applies to the primary system and allocates to the BS1 idle spectrum resource £.
- FIG. 5 is a flowchart of a method for implementing a third embodiment of a spectrum resource allocation of a reconfiguration node according to the present invention.
- the primary system idle spectrum resource information and the interference reconfiguration node pair are included in the GLDB.
- the borrowing information of the spectrum resource implements the spectrum resources allocated to the reconfiguration node.
- BS1 in the secondary system needs to borrow the primary system spectrum resources due to service requirements, BS1 sends a request to borrow SC1 to idle spectrum resources.
- Step 500 The SC1 to which the reconfiguration node BS1 belongs acquires the idle spectrum resource information of the primary system and the borrowing information of the idle spectrum resource by the interference reconfiguration management node.
- Table 3 shows the borrowing information of the secondary system for the idle spectrum resources, as shown in Table 3:
- the idle frequency of SC1 has £2, f4 (this method is prior art, and includes the following process: SC1 applies for location information of BS1 of resources to GLDB, resource requirement information, GLDB According to the main system frequency borrowing information, it is judged that the main system idle frequency that satisfies the resource demand at the location of BS1 has G, f4). At the same time, according to the information of the free spectrum resource list provided in the database to other secondary systems, SC1 knows that the idle spectrum £2 is SC2. SC3 is occupied; the idle spectrum f4 is occupied by SC4. SC1 determines that SC2, SC3, and SC4 are interference SCs.
- Table 3 shows the borrowing information of the idle spectrum resources of the secondary system.
- Table 4 shows the idle spectrum resource information and the interference reconfiguration management node list of the idle spectrum resource borrowing information.
- GLDB gives the requirements of the transmission parameters for each segment based on the protection of the main system.
- the maximum allowable transmit power of £ is 40dBm, correspondingly, f4: 30dBm.
- Step 501 The primary system idle spectrum resources are all borrowed. Before the negotiation, the subordinate user equipment of the interference reconfiguration management node is determined to be compatible with the spectrum resources borrowed by the subordinate user equipment.
- SC1 first transmits the information of the spectrum parameters to be borrowed for BS1 to SC4: the location of BS1 (latitude and longitude coordinates), the expected use of spectrum f4, and the transmission power of 30 dBm.
- SC4 determines whether BS1 interferes with the sub-user equipment of the subordinate using the f4 resource, and the secondary user equipment of the SC4 subordinate using f4 is BS4, calculates the transmission model between BS1 and BS4, and calculates the transmission power of the two, and generates each other. interference; SC4 further calculates that the maximum transmit power allowed by BS1 is 20 dBm without interfering with the normal communication of BS4.
- the SCI judges that it can accept a transmit power limit of 20 dBm, so negotiates with SC4 to borrow the same compatible frequency resource.
- Step 502 SC1 applies to the primary system and allocates it to the BS1 spectrum resource f4, and limits the transmission power to 20 dBm.
- FIG. 6 is a flowchart of a method for implementing a fourth embodiment of a spectrum resource allocation of a reconfiguration node according to the present invention.
- BS1 when the BS1 in the secondary system needs to borrow the spectrum resources of the primary system due to service requirements, BS1 sends a request to borrow SC1 to borrow the idle spectrum resource.
- Step 600 The SC1 to which the reconfiguration node BS1 belongs acquires the idle spectrum resource information of the primary system and the borrowing information of the idle reconfiguration management node for the idle spectrum resource.
- Table 5 shows the borrowing information of the secondary system for the idle spectrum resources, as shown in Table 5:
- the idle spectrum resource list indicates that the idle frequency of SC1 has £2, f4.
- SC1 knows that the idle spectrum £2 is occupied by SC2 and SC3; the idle spectrum f4 is occupied by SC4.
- SC1 determines that SC2, SC3, and SC4 are interference SCs.
- Table 5 shows the borrowing information of the idle spectrum resources of the secondary system.
- Step 601 The SC1 performs perceptual measurement on the acquired spectrum in the idle spectrum resource list, and determines the borrowing information of the interference reconfiguration management node to the idle spectrum resource of the primary system.
- the related SC information fed back by the GLDB is an SC that may interfere with the SC1.
- whether or not there is an interference relationship is determined by means of perceptual measurement.
- the SC1 configures the subordinate BS1 to perform sensing measurements on £2 and f4 to determine whether there are secondary user equipments that interfere with the system; other sub-systems are using the spectrum resources.
- SC3 the reconfiguration management node to which it belongs is SC3
- SC4 the reconfiguration management node to which it belongs is SC4
- the SCI subordinate node perceives that the fixed location in the message sent by the interfering node BS3, BS4, and the BS indicates the SC information (such as the SC identifier) to which the SC is located in a fixed format.
- the SC is sent by the operator, and the BS3 sends the message.
- the information includes the PLMN (Public Land Mobile Network) of the operator to which it belongs, which is 46000.
- the node may determine the SC to which the BS belongs by detecting the BS, that is, the BS1 reports that the SC1 interference SC is SC3; or, the above judgment process is performed by SC1, that is, the correspondence between the BS and the SC is saved in the SC1, and the SC1 manages
- the node provides BS information (such as PLMN, or BS) to SC1. Knowledge), SCI can find the SC to which the BS belongs.
- Step 602 SC1 negotiates spectrum resource borrowing with SC3 and SC4.
- SC1 first asks whether SC3 can give up spectrum f2, and SC3 has no other free spectrum resources available, so the reply is rejected. SC1 then asks whether SC4 can give up spectrum f4. There is still f5 in SC4's free spectrum resource list, and no other SCs are used. Therefore, SC3 can re-allocate to f5 and let out the spectrum f4 negotiated by SC1.
- Step 603 SC1 applies to the primary system and allocates to the BS1 idle spectrum resource f4.
- FIG. 7 is a structural block diagram of an apparatus for implementing spectrum resource allocation according to the present invention. As shown in FIG. 7, an apparatus for implementing spectrum resource allocation includes:
- the obtaining unit is configured to obtain the primary system idle spectrum resource information and the borrowing information of the interference reconfiguration management node for the primary system idle spectrum resource, and send the information to the allocation unit.
- the obtaining unit is configured to obtain the primary system idle spectrum resource information from the GLDB, and the borrowing information of the interference reconfiguration management node to the primary system idle spectrum resource.
- the borrowing information includes: a usage state of the idle spectrum resource borrowed by the interference reconfiguration management node for the idle spectrum resource; the usage state is: a location of the secondary user equipment that is using the idle spectrum resource, and/or coverage, and / or, device type, and / or, duration of use, and / or, transmit power, and / or antenna parameters.
- the interference reconfiguration management node is: the secondary user equipment of the subordinate user equipment and the reconfiguration management node have other reconfiguration management nodes that interfere with each other due to borrowing the idle spectrum resources of the primary system. It can be another reconfiguration management node that overlaps or is adjacent to the reconfiguration management node.
- the available idle spectrum resources are:
- the reconfiguration node uses the primary system idle spectrum resources and does not interfere with other secondary user equipments.
- an allocating unit configured to allocate, according to the information sent by the acquiring unit, the idle spectrum resource that is not borrowed by the interference reconfiguration management node to the reconfiguration node.
- the apparatus of the embodiment of the present invention further includes a sensing measurement unit and a pseudo configuration unit.
- the sensing measurement unit is configured to set a perceptual measurement calculation method to obtain each interference reconfiguration tube when the GLDB does not include the borrowing information of the interference reconfiguration management node to the idle spectrum resource of the primary system.
- the proposed configuration unit is set to not include the borrowing information of the interference reconfiguration management node to the idle spectrum resource of the primary system in the GLDB.
- All the spectrum resource parameters to be configured for the reconfiguration node are respectively sent to all potential interference reconfiguration management nodes borrowing the same primary system idle spectrum resource, and the planned spectrum resource parameters and the all potential interference reconfiguration management are performed. Performing interference calculation on the transmission parameters of the subordinate user equipment of the node, and determining the interference reconfiguration management node;
- the interference information of the subordinate user equipment and the reconfiguration node to be configured is determined by the interference reconfiguration node feedback, and the borrowing information of the idle spectrum resource of the main system by the interference reconfiguration management node is obtained.
- the apparatus further includes a negotiating unit, configured to: when the primary system idle spectrum resources are all borrowed, the reconfiguration management node and the interference reconfiguration management node according to the priority of the reconfiguration node and the interference reconfiguration node Or the operator policy negotiates to obtain the spectrum resources required by the reconfiguration node.
- a negotiating unit configured to: when the primary system idle spectrum resources are all borrowed, the reconfiguration management node and the interference reconfiguration management node according to the priority of the reconfiguration node and the interference reconfiguration node Or the operator policy negotiates to obtain the spectrum resources required by the reconfiguration node.
- the device further includes a compatibility determining unit, connected between the obtaining unit and the negotiating unit, configured to calculate interference information by using the borrowing information and the transmitting parameter of the spectrum resource required by the reconfiguration node, and determining, by the interference information, whether the reconfiguration node can Compatible with the subordinate user equipment of the interference reconfiguration management node to use the frequency resource borrowed by the subordinate user equipment;
- the reconfiguration node is compatible with the secondary user equipment of the interference reconfiguration management node to use the idle spectrum resource, and sets a transmission parameter according to the interference information, and ends; if not compatible, continue to perform negotiation .
- the device in the embodiment of the present invention is installed in the reconfiguration management node, or connected to the reconfiguration management node, or connected in another split connection manner.
- the embodiment of the present invention further provides a computer program, including program instructions, when the program instruction is executed by the reconfiguration management node, so that the reconfiguration management node can execute the method of the foregoing embodiment.
- the invention also provides a carrier carrying the above computer program.
- a program to instruct the associated hardware such as a read only memory, a magnetic disk, or an optical disk.
- all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits (using an FPGA or an ASIC chip).
- each module/unit in the foregoing embodiment may be implemented in the form of hardware, or may be implemented in the form of a software function module. The invention is not limited to any specific form of combination of hardware and software.
- the embodiments of the present invention implement the management of idle resources of the primary system, and avoid interference caused by borrowing the same spectrum resources when borrowing idle system resources.
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Abstract
一种实现频谱资源分配的方法及装置,该方法包括:在重配置节点需要借用主系统频谱资源时,重配置节点所属的重配置管理节点获取重配置节点的主系统空闲频谱资源信息,以及干扰重配置管理节点对主系统空闲频谱资源的借用信息;根据借用信息,重配置管理节点确定重配置节点可用的空闲频谱资源,并分配该频谱资源给重配置节点。
Description
一种实现频谱资源分配的方法及装置 技术领域
本发明涉及无线通信领域, 尤指一种实现频谱资源分配的方法及装置。 背景技术
无线电技术的不断进步, 促进着更多的无线电业务大量涌现。 然而无线 电业务所依托有限的频谱资源, 使频谱资源紧张的问题逐渐显现出来。 传统 的固定频谱分配的模式, 使得一些频谱资源没有得到充分的利用, 导致频谱 资源整体利用率偏低, 存在很大程度可利用的空闲频谱。 例如, 某些广播电 视系统频谱资源在某些地区并未被利用; 或, 某些广播电视系统频谱在某地 区虽有覆盖, 但某些时段没有被使用。 为了使这些未被使用的频谱资源可以 得到重新利用, 认知无线电技术(IMT )打破了频谱固定分配的模式, 通过 对主系统空闲频谱资源的借用, 将频谱资源在不同的系统间实现动态分配, 即通过 IMT系统获取广播电视系统信息, 伺机占用其在空间和时间上未使用 的频谱资源(TVWS ) ,从而提高了广播电视系统频谱的利用率, 改善了 IMT 系统频谱紧张的局面。
在认知无线电系统架构中, 由重配置管理节点 (如 ETSI RRS中的频谱 协调器(SC ) )对其下属次级用户设备(如基站)进行频谱资源分配管理, 由于重配置管理节点掌握下属次级用户设备对主系统空闲频谱资源的借用情 况, 从而避免了同一重配置管理节点下次级用户设备彼此间由于频谱资源复 用而产生的干扰问题。 但是, 重配置管理节点是以次级系统或次级系统运营 商为单位的, 在借用主系统空闲频谱资源时, 重配置管理节点处在交叠或相 邻覆盖区域的次级系统, 而这些次级系统从地理资源数据库(GLDB )中获取 到的空闲频谱资源很多是相同的, 如图 1所示, 图 1为相关技术的重配置节 点存在借用相同空闲频谱资源的场景示意图, 其中, 次级系统 A包括: 频谱 协调器 SCa及基站 al ( BSal ) 、 BSa2、 BSa3 , 次级系统 B包括: SCb及基 站 bl ( BSbl ) 、 BSb2、 BSb3。 SCa获得主系统空闲资源频语信息后, 对于 次级系统 A的(SCal )要为 BSal申请分配主系统空闲频谱资源,其中, BSal
为正在通过其所属的重配置管理节点 SCa发起借用空闲频谱资源, 为了区分 其与 A系统内其他次级用户设备和其他系统的次级用户设备的区别, 将该类 节点定义为重配置节点, BS al属于 SC1管辖。 由于 BS al处于次级系统 A 与次级系统 B的交叠(或相邻)的覆盖区域,因此,处于交叠覆盖区域的 BSbl 如果出现需要借用空闲频谱资源的情况时, 如果都向所属位置的同一主系统 借用空闲频谱资源,那么 BSal和 BSbl借用的主系统空闲频谱资源是相同的。 BSal和 BSbl均借用了相同的空闲频谱资源,此时的 BSbl相对于 BSal而言 就是干扰重配置节点。在 SC1为重配置节点 BS2借用的空闲频谱资源无法同 时满足 BS1和 BS2同时兼容使用该频谱资源时,会导致两个基站之间彼此产 生干扰。 严重时, 甚至导致频谱资源无法使用的问题。
另外, 多个次级系统的重配置管理节点为其下属重配置节点竟争主系统 空闲频谱资源时, 存在空闲频谱资源分配不合理的问题, 例如, 假设次级系 统 A中的次级用户设备急需借用主系统空闲频谱资源, 而次级系统 B中的次 级用户设备本身频谱资源并不十分紧缺(如借用主系统空闲频谱资源只是为 了增强用户的感受)却借用了次级系统 A所急需的空闲频谱资源, 由于相关 技术没有提供合理的竟争机制, 因此造成了频谱分配的不合理, 影响了系统 业务的合理运行。 发明内容
为了解决上述技术问题, 本发明实施例公开了一种实现频谱资源分配的 方法及装置。 能够实现主系统空闲资源的管理, 避免在借用空闲系统资源时, 由于借用相同的频谱资源产生干扰。
本发明实施例提供一种实现频谱资源分配的方法, 在重配置节点需要借 用主系统频谱资源时, 包括:
重配置节点所属的重配置管理节点获取重配置节点的主系统空闲频谱资 源信息, 以及干扰重配置管理节点对所述主系统空闲频谱资源的借用信息; 根据所述借用信息, 重配置管理节点确定重配置节点可用的空闲频谱资 源, 并分配可用的空闲频谱资源给重配置节点。
较佳地, 该方法还包括: 当主系统空闲频谱资源全部被借用时, 重配置管理节点与所述干扰重配置管理节点进行协商, 获得所述重配置 节点需要的频谱资源。
较佳地, 协商包括: 根据所述重配置管理节点与干扰重配置管理节点的 优先级, 或运营商策略进行协商。
较佳地, 协商之前还包括:
通过所述借用信息与重配置节点所需频谱资源的发射参数计算得到干扰 信息, 通过干扰信息确定所述重配置节点是否能与干扰重配置管理节点的下 属次级用户设备兼容使用所述下属次级用户设备已借用的频谱资源;
如果能兼容使用, 则所述重配置节点与所述干扰重配置管理节点的次级 用户设备兼容使用所述空闲频谱资源, 并根据干扰信息设置发射参数, 结束; 如果不能兼容使用, 继续执行所述协商。
较佳地, 所述重配置管理节点从地理资源数据库 GLDB中, 获取所述重 配置节点的主系统空闲频谱资源信息, 以及干扰重配置管理节点对所述主系 统空闲频谱资源的借用信息。
较佳地, 该方法还包括: 当所述 GLDB中不存在所述干扰重配置管理节 点对所述主系统空闲频谱资源的借用信息时,
通过感知测量的方法, 确定干扰重配置管理节点下属的次级用户设备对 主系统空闲频谱资源的借用信息, 得到所述干扰重配置管理节点对主系统空 闲频谱资源的借用信息。
较佳地, 该方法还包括: 当所述 GLDB中不存在所述干扰重配置管理节 点对所述主系统空闲频谱资源的借用信息时,
为所述重配置节点拟配置所述主系统的空闲频谱资源;
将为所述重配置节点拟配置的频谱资源参数发往所有潜在的干扰重配置 管理节点, 通过拟配置的频谱资源参数与所述所有潜在的干扰重配置管理节 点的下属次级用户设备的发射参数进行干扰计算,确定干扰重配置管理节点; 所述重配置管理节点接收所述干扰重配置管理节点反馈的与所述重配置 节点拟配置参数存在干扰关系的下属次级用户设备的频语使用信息, 并确定
为所述干扰重配置管理节点对主系统空闲频谱资源的借用信息。
较佳地, 所述潜在的干扰重配置管理节点指其下属次级用户设备与所述 重配置节点可能相互干扰的重配置管理节点; 其信息事先确定并保存在所述 重配置管理节点中, 和 /或, 由 GLDB在为所述重配置节点反馈可用信道列表 时提供。
较佳地, 所述干扰重配置管理节点包括: 与所述重配置管理节点重叠或 相邻的其他重配置管理节点。
较佳地, 所述借用信息包括: 所述干扰重配置管理节点对空闲频谱资源 的借用的空闲频谱资源的使用状态;
使用状态为:正在使用所述空闲频谱资源的次级用户设备的位置、和 /或, 覆盖范围、 和 /或, 设备类型、 和 /或, 使用时长、 和 /或, 发射功率、 和 /或, 天线参数。
较佳地, 所述干扰重配置管理节点是指: 其下属次级用户设备与重配置 管理节点的次级用户设备由于借用主系统空闲频谱资源存在相互干扰的重配 置管理节点;
所述重配置节点使用所述可用的空闲频谱资源不会与其他次级用户设备 产生彼此间干扰。
另一方面, 本发明实施例还包括一种实现频谱资源分配的装置, 包括: 获取单元, 设置为获取主系统空闲频谱资源信息及干扰重配置管理节点 对主系统空闲频谱资源的借用信息, 发送到分配单元;
分配单元, 设置为根据获取单元发送的信息, 将干扰重配置管理节点未 借用的主系统空闲频谱资源分配给重配置节点。
较佳地, 该装置还包括协商单元, 设置为当主系统空闲频谱资源都在被 借用时, 重配置管理节点与干扰重配置管理节点根据重配置节点与干扰重配 置节点的优先级, 或运营商策略进行协商, 获得所述重配置节点需要的频谱 资源。
较佳地, 该装置还包括兼容判断单元, 连接于获取单元和协商单元之间,
设置为通过借用信息与重配置节点所需频谱资源的发射参数计算得到干扰信 息, 通过干扰信息确定所述重配置节点是否能与干扰重配置管理节点的下属 次级用户设备兼容使用所述下属次级用户设备已借用的频语资源;
如果能兼容使用, 则重配置节点与干扰重配置管理节点的次级用户设备 兼容使用所述空闲频谱资源, 并根据干扰信息设置发射参数, 结束; 如果不 能兼容使用, 继续执行协商。
较佳地, 获取单元, 是设置为从地理资源数据库 GLDB中, 获取主系统 空闲频谱资源信息, 以及干扰重配置管理节点对主系统空闲频谱资源的借用 信息。
较佳地, 该装置还包括感知测量单元, 设置为在 GLDB中不包含干扰重 配置管理节点对主系统空闲频谱资源的借用信息时,设置感知测量计算方法, 获取干扰重配置管理节点对主系统空闲频谱资源的借用信息。
较佳地, 该装置还包括拟配置单元, 设置为在 GLDB中不包含干扰重配 置管理节点对主系统空闲频谱资源的借用信息时,
为所述重配置节点拟配置主系统的空闲频谱资源;
将为所述重配置节点拟配置的频谱资源参数发往所有潜在的干扰重配置 管理节点, 通过拟配置的频谱资源参数与所述所有潜在的干扰重配置管理节 点的下属次级用户设备的发射参数进行干扰计算,确定干扰重配置管理节点; 接收干扰重配置节点反馈的其下属次级用户设备与拟配置的重配置节点 的干扰信息, 并确定为所述干扰重配置管理节点对主系统空闲频谱资源的借 用信息。
较佳地, 所述潜在的干扰重配置管理节点指其下属次级用户设备与所述 重配置节点可能相互干扰的重配置管理节点; 其信息事先确定并保存在所述 重配置管理节点中, 和 /或, 由 GLDB在为所述重配置节点反馈可用信道列表 时提供。
较佳地, 借用信息包括: 干扰重配置管理节点对空闲频谱资源的借用的 空闲频谱资源的使用状态;
使用状态为:正在使用所述空闲频谱资源的次级用户设备的位置、和 /或, 覆盖范围、 和 /或, 设备类型、 和 /或, 使用时长、 和 /或, 发射功率、 和 /或, 天线参数。
较佳地, 所述干扰重配置管理节点是指: 其下属次级用户设备与重配置 管理节点的次级用户设备由于借用主系统空闲频谱资源存在相互干扰的重配 置管理节点;
所述重配置节点使用所述可用的空闲频谱资源不会与其他次级用户设备 产生彼此间干扰。
本发明实施例还提供一种计算机程序, 包括程序指令, 当该程序指令被 重配置管理节点执行时, 使得该重配置管理节点可执行上述方法。
本发明还提供一种载有上述计算机程序的载体。
本申请实施例提供一种实现频谱资源分配的方法, 在重配置节点需要借 用主系统频谱资源时, 包括: 重配置节点所属的重配置管理节点获取重配置 节点的主系统空闲频谱资源信息, 以及干扰重配置管理节点对主系统空闲频 谱资源的借用信息; 根据借用信息, 重配置管理节点确定重配置节点可用的 空闲频谱资源, 并分配该频谱资源给重配置节点; 干扰重配置管理节点为: 其下属次级用户设备与重配置管理节点的次级用户设备由于借用主系统空闲 频谱资源存在相互干扰的其他重配置管理节点。 本申请还包括与本发明实施 例方法相对应的装置。 通过本发明实施例的方法及装置, 实现对主系统空闲 频谱资源的分配管理, 避免了重配置节点因为借用主系统空闲频谱资源造成 与干扰重配置管理节点的次级用户设备之间的频谱干扰。
另一方面, 在次级系统空闲资源借用情况未知的情况, 本发明实施例方 法还包括, 通过感知测量和拟配置的方法获得干扰重配置管理节点对空闲频 谱资源的借用情况。 在空闲频谱资源都被借用时, 釆用协商的方法实现对次 级系统对空闲频谱资源的应用管理。
附图概述
此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中:
图 1为相关技术重配置节点存在借用相同空闲频谱资源的场景示意图; 图 2为本发明实现频谱资源分配的方法实施例流程图;
图 3为本发明实现重配置节点频谱资源分配第一实施例的方法流程图; 图 4为本发明实现重配置节点频谱资源分配第二实施例的方法流程图; 图 5为本发明实现重配置节点频谱资源分配第三实施例的方法流程图; 图 6为本发明实现重配置节点频谱资源分配第四实施例的方法流程图; 图 7为本发明实现频谱资源分配的装置实施例的结构框图。 本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
图 2为本发明实现频谱资源分配的方法实施例的流程图, 如图 2所示, 实现频谱资源分配的方法, 在重配置节点需要借用主系统频谱资源时, 包括: 步骤 200、 重配置节点所属的重配置管理节点获取重配置节点的主系统 空闲频谱资源信息, 以及干扰重配置管理节点对主系统空闲频谱资源的借用 信息。
本步骤中, 重配置管理节点从地理位置信息数据库 GLDB中, 获取重配 置节点的主系统空闲频谱资源信息, 以及干扰重配置管理节点对主系统空闲 频谱资源的借用信息。
干扰重配置管理节点为: 其下属次级用户设备与重配置管理节点的次级 用户设备由于借用主系统空闲频谱资源存在相互干扰的其他重配置管理节 点。 干扰重配置管理节点可以是, 与所述重配置管理节点重叠或相邻的其他 重配置管理节点。
较佳地, 当 GLDB中不存在干扰重配置管理节点对主系统空闲频谱资源 的借用信息时, 该方法还包括: 通过感知测量的方法, 确定干扰重配置管理 节点对主系统空闲频谱资源的借用信息。感知测量主要通过通信信道的功率、 能量等发射参数对频谱的使用情况进行计算分析,获得频谱资源的使用情况。 通过感知测量获得的结果包括以下一项或多项: 干扰重配置节点的标识、 和 / 或, 干扰的大小、 和 /或, 干扰重配置节点所归属的重配置管理节点的标识, 在此不再赘述。
较佳地, 当 GLDB中不存在干扰重配置管理节点对主系统空闲频谱资源 的借用信息时, 该方法还包括:
为所述重配置节点拟配置主系统的空闲频谱资源;
将为重配置节点拟配置的频谱资源参数分别发往所有潜在的干扰重配置 管理节点, 通过拟配置的频谱资源参数与所述所有潜在的干扰重配置管理节 点的下属次级用户设备的发射参数进行干扰计算,确定干扰重配置管理节点; 通过干扰重配置节点确定其下属次级用户设备与拟配置的重配置节点的 干扰信息, 并将所述干扰信息反馈给重配置管理节点, 重配置管理节点获得 干扰重配置管理节点对主系统空闲频谱资源的借用信息。
其中, 所述潜在的干扰重配置管理节点指其下属次级用户设备与所述重 配置节点可能相互干扰的重配置管理节点; 其信息事先确定并保存在所述重 配置管理节点中, 和 /或, 由 GLDB在为所述重配置节点反馈可用信道列表时 提供。
步骤 201、 根据借用信息, 重配置管理节点确定重配置节点可用的空闲 频谱资源, 并分配该频谱资源给重配置节点。
本步骤中, 可用的空闲频谱资源为: 重配置节点使用该主系统空闲频谱 资源不会与其他次级用户设备产生彼此间干扰。
借用信息包括: 干扰重配置管理节点对空闲频谱资源的借用的空闲频谱 资源的使用状态, 使用状态为: 正在使用所述空闲频谱资源的次级用户设备 的位置、 和 /或, 覆盖范围、 和 /或, 设备类型、 和 /或, 使用时长、 和 /或, 发 射功率、 和 /或, 天线参数。
当主系统空闲频谱资源都被借用时, 该方法还包括:
重配置管理节点与干扰重配置管理节点进行协商, 获得重配置节点需要 的频谱资源。 协商包括: 根据所述重配置管理节点与干扰重配置管理节点的 优先级, 或运营商策略进行协商。 重配置管理节点的优先级可以由其下属用 户的优先级,高优先级用户的数目来确定,申请资源的 SC1与干扰 SC2协商, 同时提供其优先级信息, 如优先级等级为 1 (最高级) , 干扰 SC2接收到协 商消息后, 将 SC1的优先级与自身的优先级进行比较, SC2优先级等级为 2 低于 SC1 , 则 SC2让出空闲频谱资源给 SC1。 需要说明的是, 釆用优先级或 运营商策略的方法, 只是为了说明在频谱资源借用过程中的需求程度, 并不 是为了限制只有这两种依据的协商。
需要说明的是, 需要的频语资源, 可以是独立的频谱资源, 也可以是与 干扰重配置节点共用而不会产生干扰的频谱资源。
本步骤中 , 通过借用信息与重配置节点所需频谱资源的发射参数计算得 到干扰信息, 通过干扰信息确定重配置节点是否能与干扰重配置管理节点的 下属次级用户设备兼容使用所述下属次级用户设备已借用的频谱资源;
如果能兼容使用, 则重配置节点与干扰重配置管理节点的次级用户设备 兼容使用所述空闲频谱资源, 并根据干扰信息设置发射参数, 结束; 如果不 能兼容使用, 继续执行所述协商。
实施例一
图 3为本发明实现重配置节点频谱资源分配第一实施例的方法流程图, 如图 3所示, 第一实施例中, 假设在 GLDB中不包含次级系统对主系统空闲 频谱资源借用信息, 通过感知测量的方法获取次级系统对主系统空闲频谱资 源借用信息。 当次级系统下的重配置节点 (BS1 ) 因为业务需求需要借用主 系统频谱资源时, BS1向重配置管理节点(SC1 )发送借用空闲频谱资源请求。 需要说明的是, 次级系统 SC获得下属的次级用户设备(包括重配置节点和 干扰重配置节点)对主系统的空闲频谱资源的借用, 如果借用并且记录到 GLDB中, 则 GLDB会包含主系统空闲资源频谱资源和次级系统对空闲频谱 资源的借用信息。
步骤 300、 重配置节点 BS1所属的 SC1获取主系统空闲频谱资源信息。 表 1为空闲频谱资源信息列表, 如表 1所示, 空闲频谱资源列表中指示, 假设主系统的空闲频谱(中心频点)有 fl =512MHz, f2=542MHz, β=568ΜΗζ。 带宽均为 6ΜΗζ。 同时 GLDB给出了针对每段频语基于主系统保护角度考虑 的发射参数要求, fl 最大允许发射功率 40dBm, 相应的, £2: 30dBm, β: 50dBm。
表 1 空闲频谱资源信息列表
需要说明的是, 感知测量主要通过功率或能量等发射参数, 或其他数据 来间接的得到信道的使用状态。 如何感知获得这些参数, 可参照现有技术, 这里不再赘述。
SC1配置对 fl、 £2、 β进行感知测量, 判断是否有其他次级系统正在借 用该空闲频谱资源。 通过测量得出: 假设第一实施例中, 空闲频谱 fl上存在 次级用户设备 BS2 (其所归属的重配置管理节点为 SC2 ) , £2上存在次级用 户设备 BS3 (其所归属的重配置管理节点为 SC3 ) , β上存在次级用户设备 BS4 (其所归属的重配置管理节点为 SC4 ) ( BS发送的消息中的固定位置以 固定格式表明了其所归属的 SC信息) , 这里的 SC2、 SC3、 SC4都为干扰重 配置管理节点。
从感知测量的结果可以看出, 主系统的空闲频谱资源都被借用。
步骤 302、 主系统空闲频谱资源都被借用, 重配置管理节点与干扰重配 置管理节点进行协商。根据重配置管理节点与干扰重配置管理节点的优先级,
或运营商策略进行协商。
SC1首先询问 SC2是否可让出频谱 fl , SC2与 SC1优先级相同, 且没有 其他空闲频谱资源可用,故回复拒绝。 SC1随后询问 SC3是否可让出频谱 £2 , SC3的空闲频谱资源列表中还存在 f5 , 并无其他 SC所用, 因此 SC3可以通 过重配至 f5 , 而让出所述 SCI协商的频语 £2。 通过本步骤, SC1为 BS1重配 置节点通过协商的方法获得了空闲频谱资源 £2的借用。
步骤 303、 SC1向主系统申请并分配给 BS1空闲频谱资源 £2。
在获得空闲频谱资源 £2的借用后, BS1向 SC1反馈分配更新信息, SC1 向地理位置数据库 GLDB发送 BS1频语使用信息。 此部分为现有技术, 因此 不做赞述。
具体实施例二
图 4为本发明实现重配置节点频谱资源分配第二实施例的方法流程图, 如图 4所示,当次级系统下的 BS1因为业务需求需要借用主系统频谱资源时, BS1向 SC1发送借用空闲频谱资源请求, 此时 GLDB中不包含干扰重配置管 理节点对空闲频谱资源的借用信息。
步骤 400、 重配置节点 BS1所属的 SC1获取主系统空闲频谱资源信息。 表 2为空闲频谱资源信息列表, 如表 2所示, 空闲频谱资源列表中指示, 假设主系统的空闲频谱(中心频点)有 fl =512MHz, f2=542MHz, β=568ΜΗζ。 带宽均为 6ΜΗζ。 同时 GLDB给出了针对每段频语基于主系统保护角度考虑 的发射参数要求, fl 最大允许发射功率 40dBm, 相应的, £2: 30dBm, β : 50dBm。
表 2 空闲频谱资源信息列表
拟配置方法如下: SC1向其保存的相关 SC ( SC2、 SC3、 SC4 )发送频谱 拟配置信息, SC1在消息中表明将要为 BS1配置频率 fl , BS1的位置, 及发 射功率; 询问相关 SC是否有冲突, SC2-SC4收到来自 SC1的消息后, 若有 冲突则在一定时间 (如 2s ) 内给予回复: 本实施例中, 假设 SC2回复 SC1 : 表明其下属节点 BS2正在使用所述频率 fl , 且与 BS1彼此干扰。 因此, SC1 继续以同样的方式询问频率 £2的使用情况, 在预定时间 (2s )并没有收到相 关 SC的任何回复, 因此 SC1确定 £2可用。
通过拟配置的方法, SC1为 BS1获得了可以借用的空闲频谱资源信息。 步骤 402、 SC1向主系统申请并分配给 BS1空闲频谱资源 £2。
本步骤中, 通过 SC1向主系统申请 £2的频谱资源进行借用, 此部分为现 有方法具有的流程不做陈述。
具体实施例三
图 5为本发明实现重配置节点频谱资源分配第三实施例的方法流程图, 如图 5所示, 第三实施例中, 假设在 GLDB中包含主系统空闲频谱资源信息 及干扰重配置节点对频谱资源的借用信息, 实现分配给重配置节点所需的频 谱资源。当次级系统下的 BS1因为业务需求需要借用主系统频谱资源时, BS1 向 SC1发送借用空闲频谱资源请求。
步骤 500、 重配置节点 BS1所属的 SC1获取主系统空闲频谱资源信息及 干扰重配置管理节点对空闲频谱资源的借用信息。
表 3为次级系统对空闲频谱资源的借用信息, 如表 3所示:
假设本实施例中空闲频谱资源列表中指示, SC1的空闲频语有 £2, f4 (该 方法是现有技术,包括以下过程: SC1向 GLDB申请资源的 BS1的位置信息, 资源需求信息, GLDB根据主系统频语借用信息, 判断在 BS1所在位置上满 足其资源需求的主系统空闲频语有 G, f4 ) 。 同时, 根据数据库中保存的向 其他次级系统提供的空闲频谱资源列表信息, SC1得知, 空闲频谱 £2被 SC2、
SC3占用; 空闲频谱 f4被 SC4占用。 SC1确定 SC2、 SC3、 SC4为干扰 SC。
表 3为次级系统对空闲频谱资源的借用信息
表 4为空闲频谱资源信息及干扰重配置管理节点对空闲频谱资源借用信 息列表, 如表 4所示, 空闲频谱资源列表中指示, 主系统的空闲频谱(中心 频点)有 f2=512MHz, f4=542MHz。 带宽均为 6MHz。 同时 GLDB给出了针 对每段频语基于主系统保护角度考虑的发射参数要求, £2最大允许发射功率 40dBm, 相应的, f4: 30dBm。
表 4空闲频谱资源信息列表
步骤 501、 主系统空闲频谱资源都被借用, 在协商之前确定干扰重配置 管理节点的下属次级用户设备兼容使用下属次级用户设备已借用的频谱资 源。
SC1首先发送对 BS1的所需借用的频谱参数的信息给 SC4: BS1的位置 (经纬度坐标) , 预期使用频谱 f4, 发射功率 30dBm。 SC4判断 BSl是否与 其下属使用 f4资源的次级用户设备彼此干扰, SC4下属使用 f4的次级用户设 备为 BS4, 通过 BS1与 BS4间传播模型, 及两者的发射功率计算得出, 彼此 将产生干扰;
SC4进一步计算, 在不干扰 BS4的正常通信的前提下, BS1所允许的最 大发射功率为 20dBm。
SCI判断能接受 20dBm的发射功率限制, 因此协商与 SC4协商,借用相 同的兼容的频语资源。
步骤 502、 SC1向主系统申请并分配给 BS1频谱资源 f4, 并限定发射功 率为 20dBm。
具体实施例四
图 6为本发明实现重配置节点频谱资源分配第四实施例的方法流程图, 如图 6所示, 第四实施例中, 当次级系统下的 BS1因为业务需求需要借用主 系统频谱资源时, BS1向 SC1发送借用空闲频谱资源请求。
步骤 600、 重配置节点 BS1所属的 SC1获取主系统空闲频谱资源信息及 干扰重配置管理节点对空闲频谱资源的借用信息。
表 5为次级系统对空闲频谱资源的借用信息, 如表 5所示:
本实施例中空闲频谱资源列表中指示, SC1的空闲频语有 £2, f4。 同时, 根据数据库中保存的向其他次级系统提供的空闲频谱资源列表信息, SC1 得 知, 空闲频谱 £2被 SC2、 SC3占用; 空闲频谱 f4被 SC4占用。 SC1确定 SC2、 SC3、 SC4为干扰 SC。
表 5为次级系统对空闲频谱资源的借用信息
表 6为空闲频谱资源信息及干扰重配置管理节点对空闲频谱资源借用信 息列表, 如表 6所示, 假设空闲频谱资源如列表中指示, 主系统的空闲频谱
(中心频点)有 f2=512MHz, f4=542MHz。 带宽均为 6MHz。 同时 GLDB给 出了针对每段频语基于主系统保护角度考虑的发射参数要求, G最大允许发 射功率 40dBm, 相应的, f4: 30dBm。 表 6空闲频谱资源信息列表
步骤 601、 SC1针对所获取的空闲频谱资源列表中的频谱进行感知测量, 确定干扰重配置管理节点对主系统空闲频谱资源的借用信息。
GLDB所反馈的相关 SC信息为可能与 SC1相干扰的 SC, 本实施例中, 通过感知测量的方式确定是否存在干扰关系。
SC1配置下属 BS1对 £2、 f4进行感知测量, 判断是否存在干扰本系统的 次级用户设备; 有其他次级系统正在使用该频谱资源。 通过测量得出: £2上 存在次级用户设备 BS3 (其所归属的重配置管理节点为 SC3 ) , f4上存在次 级用户设备 BS4 (其所归属的重配置管理节点为 SC4 ) 。 因此 SC1确定干扰 SC为 SC3、 SC4。
SCI下属节点感知测量到干扰节点 BS3、 BS4, BS发送的消息中的固定 位置以固定格式表明了其所归属的 SC信息 (如 SC标识) , 本实施例中 SC 以运营商为单位, BS3发送的信息中包含其所属运营商的 PLMN ( Public Land Mobile Network, 公共陆地移动网络)为 46000, BS1从该 PLMN信息判断 BS3所归属的 SC为 SC3 ( PLMN46000所对应的运营商 SC ) , 因此 SC1下 属节点可以通过对 BS的发现确定 BS所归属的 SC,即 BS1上报 SC1干扰 SC 为 SC3; 或者, 上面的判断过程有 SC1来进行, 即 SC1 中保存着 BS与 SC 间的对应关系, SC1所管理的节点向 SC1提供 BS信息(如 PLMN、 或 BS标
识) , SCI即可找到 BS所归属的 SC。
步骤 602、 SC1与 SC3、 SC4协商频谱资源借用。
SC1首先询问 SC3是否可让出频谱 f2, SC3没有其他空闲频谱资源可用, 故回复拒绝。 SC1随后询问 SC4是否可让出频谱 f4, SC4的空闲频谱资源列 表中还存在 f5 , 并无其他 SC使用, 因此 SC3可以通过重配至 f5 , 而让出所 述 SC1协商的频谱 f4。
步骤 603、 SC1向主系统申请并分配给 BS1空闲频谱资源 f4。
本申请实施例还包括与本发明实施例方法对应的装置。 图 7为本发明实 现频谱资源分配的装置实施例的结构框图, 如图 7所示, 一种实现频谱资源 分配的装置, 包括:
获取单元, 设置为获取主系统空闲频谱资源信息及干扰重配置管理节点 对主系统空闲频谱资源的借用信息, 发送到分配单元。
获取单元, 是设置为从 GLDB中, 获取所述主系统空闲频谱资源信息, 以及干扰重配置管理节点对主系统空闲频谱资源的借用信息。借用信息包括: 干扰重配置管理节点对空闲频谱资源的借用的空闲频谱资源的使用状态; 使 用状态为: 正在使用所述空闲频谱资源的次级用户设备的位置、 和 /或, 覆盖 范围、 和 /或, 设备类型、 和 /或, 使用时长、 和 /或, 发射功率、 和 /或, 天线 参数。
干扰重配置管理节点为: 其下属次级用户设备与重配置管理节点的次级 用户设备由于借用主系统空闲频谱资源存在相互干扰的其他重配置管理节 点。 可以是与重配置管理节点重叠或相邻的其他重配置管理节点。
可用的空闲频谱资源为: 重配置节点使用该主系统空闲频谱资源不会与 其他次级用户设备产生彼此间干扰。
分配单元, 设置为根据获取单元发送的信息, 将干扰重配置管理节点未 借用的空闲频谱资源分配给重配置节点。
较佳地, 本发明实施例的装置还包括感知测量单元和拟配置单元。
感知测量单元, 设置为在 GLDB中不包含干扰重配置管理节点对主系统 空闲频谱资源的借用信息时, 设置感知测量计算方法, 获取各干扰重配置管
理节点对主系统空闲频谱资源的借用信息。
拟配置单元, 设置为在 GLDB中不包含干扰重配置管理节点对主系统空 闲频谱资源的借用信息时,
为所述重配置节点拟配置主系统的空闲频谱资源;
将为重配置节点拟配置的频谱资源参数分别发往借用相同主系统空闲频 谱资源的所有潜在的干扰重配置管理节点, 通过所述拟配置的频谱资源参数 与所述所有潜在的干扰重配置管理节点的下属次级用户设备的发射参数进行 干扰计算, 确定干扰重配置管理节点;
接收干扰重配置节点反馈的确定其下属次级用户设备与拟配置的重配置 节点的干扰信息, 获得干扰重配置管理节点对主系统空闲频谱资源的借用信 息。
较佳地, 该装置还包括协商单元, 设置为当主系统空闲频谱资源都在被 借用时, 所述重配置管理节点与所述干扰重配置管理节点根据重配置节点与 干扰重配置节点的优先级, 或运营商策略进行协商, 获得所述重配置节点需 要的频谱资源。
该装置还包括兼容判断单元, 连接于获取单元和协商单元之间, 设置为 通过借用信息与重配置节点所需频谱资源的发射参数计算得到干扰信息, 通 过干扰信息确定所述重配置节点是否能与干扰重配置管理节点的下属次级用 户设备兼容使用所述下属次级用户设备已借用的频语资源;
如果能兼容使用, 则所述重配置节点与所述干扰重配置管理节点的次级用户 设备兼容使用所述空闲频谱资源, 并根据干扰信息设置发射参数, 结束; 如 果不能兼容使用, 继续执行协商。
本发明实施例的装置设置于重配置管理节点,或与重配置管理节点连接, 或以其他的拆分连接方式进行连接。
本发明实施例还提供一种计算机程序, 包括程序指令, 当该程序指令被 重配置管理节点执行时, 使得该重配置管理节点可执行上述实施例的方法。
本发明还提供一种载有上述计算机程序的载体。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路(用 FPGA或 ASIC芯片 )来实现。 相应地, 上述实施 例中的各模块 /单元可以釆用硬件的形式实现, 也可以釆用软件功能模块的形 式实现。 本发明不限制于任何特定形式的硬件和软件的结合。
以上所述, 仅为本发明的较佳实例而已, 并非用于限定本发明的保护范 围。 凡在本发明的精神和原则之内, 所做的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用性 本发明实施例实现了主系统空闲资源的管理, 避免在借用空闲系统资源 时, 由于借用相同的频谱资源产生干扰。
Claims
1、 一种实现频谱资源分配的方法, 包括: 在重配置节点需要借用主系 统频语资源时,
所述重配置节点所属的重配置管理节点获取所述重配置节点的主系统空 闲频谱资源信息, 以及干扰重配置管理节点对所述主系统空闲频谱资源的借 用信息; 以及 根据所述借用信息, 所述重配置管理节点确定所述重配置节点可用的空 闲频谱资源, 并分配所述可用的空闲频谱资源给所述重配置节点。
2、 根据权利要求 1 所述的方法, 其中, 所述重配置管理节点从地理位 置信息数据库 GLDB中, 获取所述重配置节点的主系统空闲频谱资源信息, 以及干扰重配置管理节点对所述主系统空闲频谱资源的借用信息。
3、 根据权利要求 2所述的方法, 该方法还包括: 当所述 GLDB中不存 在所述干扰重配置管理节点对所述主系统空闲频谱资源的借用信息时,
通过感知测量的方法, 确定所述干扰重配置管理节点下属的次级用户设 备对主系统空闲频谱资源的借用信息, 得到所述干扰重配置管理节点对主系 统空闲频谱资源的借用信息。
4、 根据权利要求 2所述的方法, 该方法还包括: 当所述 GLDB中不存 在所述干扰重配置管理节点对所述主系统空闲频谱资源的借用信息时,
为所述重配置节点拟配置所述主系统的空闲频谱资源; 将为所述重配置节点拟配置的频谱资源参数发往所有潜在的干扰重配置 管理节点, 通过拟配置的频谱资源参数与所述所有潜在的干扰重配置管理节 点的下属次级用户设备的发射参数进行干扰计算,确定干扰重配置管理节点; 所述重配置管理节点接收所述干扰重配置管理节点反馈的与所述重配置 节点拟配置参数存在干扰关系的下属次级用户设备的频语使用信息, 并确定 为所述干扰重配置管理节点对主系统空闲频谱资源的借用信息。
5、 根据权利要求 4所述的方法, 其中, 所述潜在的干扰重配置管理节 点指其下属次级用户设备与所述重配置节点可能相互干扰的重配置管理节
点; 其信息事先确定并保存在所述重配置管理节点中, 和 /或, 由 GLDB在为 所述重配置节点反馈可用信道列表时提供。
6、 根据权利要求 1 所述的方法, 其中, 所述借用信息包括: 所述干扰 重配置管理节点对借用的空闲频谱资源的使用状态;
所述使用状态为: 正在使用所述空闲频谱资源的次级用户设备的位置、 和 /或, 覆盖范围、 和 /或, 设备类型、 和 /或, 使用时长、 和 /或, 发射功率、 和 /或, 天线参数。
7、 根据权利要求 1 所述的方法, 该方法还包括: 当所述主系统空闲频 谱资源全部被借用时,
所述重配置管理节点与所述干扰重配置管理节点进行协商, 获得所述重 配置节点需要的频谱资源。
8、 根据权利要求 7所述的方法, 其中, 所述协商包括: 根据所述重配 置管理节点与所述干扰重配置管理节点的优先级, 或运营商策略进行协商。
9、 根据权利要求 7所述的方法, 其中, 所述协商之前还包括: 通过所述借用信息与所述重配置节点所需频谱资源的发射参数计算得到 干扰信息, 通过所述干扰信息确定所述重配置节点是否能与所述干扰重配置 管理节点的下属次级用户设备兼容使用所述下属次级用户设备已借用的频谱 资源;
如果能兼容使用, 则所述重配置节点与所述干扰重配置管理节点的次级 用户设备兼容使用所述空闲频谱资源, 并根据所述干扰信息设置发射参数, 结束; 如果不能兼容使用, 继续执行所述协商。
10、 根据权利要求 1所述的方法, 其中,
所述干扰重配置管理节点为, 其下属次级用户设备与所述重配置管理节 点的次级用户设备由于借用主系统空闲频谱资源存在相互干扰的重配置管理 节点;
所述重配置节点使用所述可用的空闲频谱资源不会与其他次级用户设备 产生彼此间干扰。
11、 一种实现频谱资源分配的装置,其包括获取单元和分配单元,其中:
所述获取单元设置为: 获取主系统空闲频谱资源信息及干扰重配置管理 节点对主系统空闲频谱资源的借用信息, 发送到所述分配单元; 所述分配单元设置为: 根据获取单元发送的信息, 将干扰重配置管理节 点未借用的主系统空闲频谱资源分配给重配置节点。
12、 根据权利要求 11所述的装置, 其中, 所述获取单元, 是设置为: 从 地理位置信息数据库 GLDB中, 获取所述主系统空闲频谱资源信息, 以及干 扰重配置管理节点对主系统空闲频谱资源的借用信息。
13、 根据权利要求 12所述的装置,该装置还包括感知测量单元,其设置 为: 在 GLDB中不包含干扰重配置管理节点对主系统空闲频谱资源的借用信 息时, 设置感知测量计算方法, 获取干扰重配置管理节点对主系统空闲频谱 资源的借用信息。
14、 根据权利要求 12所述的装置,该装置还包括拟配置单元,其设置为: 在 GLDB 中不包含干扰重配置管理节点对主系统空闲频谱资源的借用信息 时,
为所述重配置节点拟配置主系统的空闲频谱资源; 将为所述重配置节点拟配置的频谱资源参数发往所有潜在的干扰重配置 管理节点, 通过拟配置的频谱资源参数与所述所有潜在的干扰重配置管理节 点的下属次级用户设备的发射参数进行干扰计算,确定干扰重配置管理节点; 接收干扰重配置节点反馈的其下属次级用户设备与拟配置的重配置节点 的干扰信息, 并确定为所述干扰重配置管理节点对主系统空闲频谱资源的借 用信息。
15、 根据权利要求 14所述的装置,其中, 所述潜在的干扰重配置管理节 点指其下属次级用户设备与所述重配置节点可能相互干扰的重配置管理节 点; 其信息可以事先确定并保存在所述重配置管理节点中, 和 /或, 由 GLDB 在为所述重配置节点反馈可用信道列表时提供。
16、 根据权利要求 11所述的装置, 其中, 所述借用信息包括: 所述干扰 重配置管理节点对空闲频谱资源的借用的空闲频语资源的使用状态;
所述使用状态为: 正在使用所述空闲频谱资源的次级用户设备的位置、 和 /或, 覆盖范围、 和 /或, 设备类型、 和 /或, 使用时长、 和 /或, 发射功率、 和 /或, 天线参数。
17、 根据权利要求 11所述的装置, 该装置还包括协商单元, 其设置为: 当所述主系统空闲频谱资源全部被借用时, 与所述干扰重配置管理节点进行 协商, 获得所述重配置节点需要的频谱资源。
18、 根据权利要求 17所述的装置,该装置还包括兼容判断单元,连接于 所述获取单元和协商单元之间, 设置为:
通过所述借用信息与所述重配置节点所需频谱资源的发射参数计算得到 干扰信息, 通过所述干扰信息确定所述重配置节点是否能与所述干扰重配置 管理节点的下属次级用户设备兼容使用所述下属次级用户设备已借用的频谱 资源;
如果能兼容使用, 则与所述干扰重配置管理节点的次级用户设备兼容使 用所述空闲频谱资源, 并根据所述干扰信息设置发射参数, 结束; 如果不能 兼容使用, 继续执行所述协商。
19、 根据权利要求 11所述的装置, 其中,
所述干扰重配置管理节点是指: 其下属次级用户设备与重配置管理节点 的次级用户设备由于借用主系统空闲频谱资源存在相互干扰的重配置管理节 点;
所述重配置节点使用所述可用的空闲频谱资源不会与其他次级用户设备 产生彼此间干扰。
20、 一种计算机程序, 包括程序指令, 当该程序指令被重配置管理节点 执行时, 使得该重配置管理节点可执行权利要求 1-10任一项所述的方法。
21、 一种载有权利要求 20所述计算机程序的载体。
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