CN102202404A - Method and equipment for scheduling radio resource - Google Patents
Method and equipment for scheduling radio resource Download PDFInfo
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- CN102202404A CN102202404A CN2010101343636A CN201010134363A CN102202404A CN 102202404 A CN102202404 A CN 102202404A CN 2010101343636 A CN2010101343636 A CN 2010101343636A CN 201010134363 A CN201010134363 A CN 201010134363A CN 102202404 A CN102202404 A CN 102202404A
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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
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
Abstract
The embodiment of the invention discloses a method and equipment for scheduling radio resource, belonging to the technical field of communication. The method can comprise the following steps: a small base station provides interference related information including position information of the small base station to resource scheduling equipment; the small base station obtains radio resource information distributed by the resource scheduling equipment; the radio resource is distributed to the small base station by the resource scheduling equipment on the basis of the interference related information; and the small base station provides service to the user equipment by using the radio resource. By means of the technical scheme disclosed by the invention, interferences between small base stations or between the small base station and a macro base station can be reduced.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of scheduling method for wireless resource and equipment.
Background technology
In heterogeneous network, generally include macro base station and small base station based on the legacy cellular net, with LTE (Long Term Evolution, Long Term Evolution) network is an example, at Macro (grand) eNB (eNodeB, evolution base station, be called for short the base station) can place all kinds of small base stations under the coverage, as WAP (wireless access point) such as Pico (small base station a kind of), HeNB (Home eNB, Home eNodeB), Femto (small base station a kind of).These small base stations can be by wired (as optical fiber) mode access to wireless communication net or Internet (Yin Te) network, and the cable network access capacity is big, is not subjected to the influence of Radio Resource scarcity, and therefore, these small base stations have higher throughput.The UE (User Equipment, subscriber equipment) that inserts Macro eNB is after entering these small base station coverages, if this UE possesses the authority that inserts small base station, then inserts small base station with wireless mode.A kind of schematic diagram of home base station network framework as shown in Figure 1 in the prior art, HeNB or Macro eNB can be in wired mode (S1 interface) directly and MME (MobilityManagement Entity, mobile management entity) links to each other, the relevant information of HeNB is stored among the MME, perhaps a plurality of HeNB insert HeNBGW (HeNB Gate Way in wired mode, home gateway), insert MME by HeNBGW again.The preliminary assigning process of the verification process of HeNB subordinate UE, Radio Resource is all finished by MME and HeNBGW.
Under the macrocell that traditional Macro eNB covers, because the introducing of other small base stations has increased a lot of Microcells, or even picocell, and the fission of sub-district makes the reusable probability of Radio Resource increase, and may produce interference.Fig. 2 is the schematic diagram that cell splitting appears in a macrocell, contains a plurality of Home eNodeB in the macrocell, represents with HeNB A, HeNB B, HeNB C among Fig. 2, and each Home eNodeB can be set up a Microcell.In 5 subscriber equipmenies, UE1 and UE2 directly accept the service of macro base station (Macro eNB), and UE3, UE4 and UE5 then provide service by HeNB.When Microcell A and B coverage distance and transmitting power each other are lower,, can not produce interference each other even identical frequency resource f1 are used in 2 sub-districts.But if during the UE2 link-quality variation of HeNB A, HeNB A can increase its transmitting power, causes the coverage of HeNB A to increase, and probably influences the channel quality of its contiguous HeNB B, the UE of the HeNB B that uses same frequency resources f1 is produced disturb.On the other hand, move phenomenon though HeNB than the poor mobility of UE, also can exist, if HeNBA moves near the HeNB B, both are owing to use same Radio Resource f1 at this moment, and Radio Link also can be interfering with each other.Therefore how reasonably to be each HeNB distributing radio resource, to alleviate interfering with each other between the close HeNB in space and just become a problem.
Summary of the invention
The embodiment of the invention provides a kind of scheduling method for wireless resource and equipment, to alleviate between the different small base station or issuable interference between small base station and macro base station.
According to one embodiment of the invention, a kind of scheduling method for wireless resource is provided, comprising:
Small base station provides interference-related information to scheduling of resource equipment, comprises the positional information of described small base station in the described interference-related information;
Described small base station obtains the information of the Radio Resource of scheduling of resource devices allocation, and described Radio Resource is to distribute to described small base station by described scheduling of resource equipment based on described interference-related information;
Described small base station utilizes described Radio Resource to provide service for subscriber equipment.
According to another embodiment of the present invention, provide a kind of scheduling method for wireless resource, comprising:
Obtain the interference-related information that small base station provides, comprise the positional information of described small base station in the described interference-related information;
Based on the positional information of described small base station, determine the interior Radio Resource operating position of interference space scope of this small base station;
When having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, give described small base station with described untapped allocation of radio resources, described macro base station is the donor base station of described small base station;
The information of assigned radio resource is provided to described small base station.
According to another embodiment of the present invention, provide a kind of small base station, comprising:
Information reports the unit, and being used for provides interference-related information to scheduling of resource equipment, comprises the positional information of described small base station in the described interference-related information;
Information acquisition unit is used to obtain the information of the Radio Resource of scheduling of resource devices allocation, and described Radio Resource is to distribute to described small base station by described scheduling of resource equipment based on described interference-related information;
Communication unit is used to utilize described Radio Resource to provide service for subscriber equipment.
According to another embodiment of the present invention, provide a kind of scheduling of resource equipment, comprising:
Information acquisition unit is used to obtain the interference-related information that small base station provides, and comprises the positional information of described small base station in the described interference-related information;
The resource determining unit is used for the positional information based on described small base station, determines the interior Radio Resource operating position of interference space scope of this small base station;
Resource allocation unit is used for giving described small base station with described untapped allocation of radio resources when having the untapped Radio Resource of interference space scope in the set of radio resources of alms giver's macro base station of small base station;
Notification unit is used for providing to described small base station the information of assigned radio resource.
According to description to technique scheme, the embodiment of the invention has following advantage: small base station is by providing self interference-related information to a scheduling of resource equipment, make scheduling of resource equipment to carry out resource allocation based on described interference-related information, help being small base station reasonable distribution Radio Resource, reduce between small base station or the interference that may occur between small base station and macro base station.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the embodiment of the invention, to do to introduce simply to the accompanying drawing that embodiment need use below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of home base station network framework in the prior art;
Fig. 2 is the schematic diagram that cell splitting appears in a macrocell;
The schematic diagram of a kind of scheduling method for wireless resource that Fig. 3 a provides for embodiments of the invention;
The schematic diagram of the another kind of scheduling method for wireless resource that Fig. 3 b provides for embodiments of the invention;
The schematic diagram of the disturbed condition of a kind of small base station that Fig. 4 provides for the embodiment of the invention;
The simplification schematic flow sheet of a kind of scheduling method for wireless resource that Fig. 5 provides for embodiments of the invention;
The simplification schematic flow sheet of the another kind of scheduling method for wireless resource that Fig. 6 a provides for embodiments of the invention;
The simplification schematic flow sheet of the another kind of scheduling method for wireless resource that Fig. 6 b provides for embodiments of the invention;
The schematic diagram of a kind of small base station that Fig. 7 provides for embodiments of the invention;
The schematic diagram of a kind of macro base station that Fig. 8 provides for embodiments of the invention;
A kind of schematic diagram of realizing the system of wireless resource scheduling that Fig. 9 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
The schematic diagram of a kind of scheduling method for wireless resource that Fig. 3 a provides for embodiments of the invention, this method comprises:
S31a: small base station provides interference-related information to macro base station, comprises the positional information of described small base station in the described interference-related information;
S32a: described small base station obtains the information of macro base station assigned radio resource, and described Radio Resource is to distribute to described small base station by described macro base station based on described interference-related information;
S33a: described small base station utilizes described Radio Resource to provide service for its subscriber equipment.
The small base station of present embodiment can be the various small base stations that comprise Pico, HeNB and Femto, it can insert described macro base station, and provide self interference-related information to macro base station, so that macro base station carries out resource allocation based on described interference-related information, helping macro base station is small base station reasonable distribution Radio Resource, can make small base station and the possibility that its other base station that forms potential interference is assigned with the same wireless resource is reduced, the situation that occurs between small base station or between small base station and macro base station disturbing can be reduced.
Alternatively, described small base station provides interference-related information to comprise to macro base station: small base station sends interference-related information by wired or wireless interface to macro base station; Perhaps small base station is transmitted interference-related information by the small base station gateway to macro base station.
Alternatively, described small base station provides interference-related information to comprise to macro base station: small base station detects self-position after the start or after detecting interference, obtains self-position information.Further, the position that detects this small base station when small base station is identical with the preceding position that once reports, and the affirmation information of invariant position is provided to macro base station; The position that detects this small base station when small base station is different with the preceding position that once reports, and provides detected new location information to macro base station.
Alternatively, described small base station can detect frequency range signal intensity in its capacity of equipment scope, and carries the information of described signal strength signal intensity in described interference-related information.
Further, described interference-related information also can comprise: the sign of small base station, the ability information of small base station, described ability information comprises: the carrier-frequency range of small base station, the bandwidth range of corresponding carrier frequency and maximum transmission power.Known when macro base station and then need not the sign of small base station small base station and to have reported its sign.
Alternatively, described method also can comprise: described small base station is selected Radio Resource for self, and the information of the Radio Resource of its selection is provided to macro base station; Correspondingly, the information that described small base station obtains the macro base station assigned radio resource comprises: described small base station obtains the information of macro base station for its Radio Resource of redistributing, and perhaps described small base station obtains the affirmation information that macro base station is agreed the Radio Resource of its selection.
Alternatively, when described small base station overlay area is divided into a plurality of sub-district, also can comprise the Radio Resource operating position of described a plurality of sub-districts in the described interference-related information.
In the above-described embodiments, small base station provides interference-related information to its corresponding macro base station, so that macro base station is the small base station distributing radio resource based on described interference-related information, but the main body of in fact distributing related resource also can be a separate equipment, for example can be an OAM (OperationAdministration Maintenance, operation management maintain) equipment, described OAM equipment can analyze, predicts, plan and dispose that present embodiment does not limit this to daily network and business.
The schematic diagram of the another kind of scheduling method for wireless resource that Fig. 3 b provides for embodiments of the invention, this method comprises:
S31b: macro base station obtains the interference-related information that small base station provides, and comprises the positional information of small base station in the described interference-related information;
S32b: described macro base station is determined the interior Radio Resource operating position of interference space scope of this small base station based on the positional information of described small base station;
S33b: when having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, described macro base station is given described small base station with described untapped allocation of radio resources;
S34b: macro base station provides the information of assigned radio resource to described small base station.
The macro base station of present embodiment can obtain the interference-related information of a plurality of small base stations of its subordinate, and carry out wireless resource allocation based on the interference-related information of small base station, reduce the possibility that is assigned with the same wireless resource between the small base station that forms potential interference mutually, reduce between small base station or the potential interference between small base station and macro base station.The untapped Radio Resource of the interference space of small base station described in present embodiment scope is the Radio Resource that not disturbed spatial dimension is used in the macro base station set of radio resources, and described interference website can be interference source website or the website that disturbed by described small base station.Further, when not having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, described macro base station is selected small base station is disturbed minimum Radio Resource in described set of radio resources, gives described small base station with selected allocation of radio resources.
Alternatively, macro base station provides the information of assigned radio resource to comprise to described small base station: macro base station sends to small base station by wired or wireless interface with the information of assigned radio resource, and perhaps macro base station is forwarded to small base station by the small base station gateway with the information of assigned radio resource.
Alternatively, can comprise the ability information of small base station in the described interference-related information, perhaps macro base station also can obtain the ability information of small base station from the mobile management entity of small base station; Described ability information also comprises: the bandwidth range and the maximum transmission power of the sign of small base station, the carrier-frequency range of small base station, corresponding carrier frequency.Certainly, macro base station can be preserved the ability information of its each small base station of subordinate in advance, and present embodiment does not limit this.
Alternatively, macro base station can obtain the information of the Radio Resource that small base station selects for self, whether the Radio Resource of determining the small base station selection is suitable, and macro base station can be this small base station and redistributes Radio Resource, or sends the affirmation information of the Radio Resource of agreeing its selection to this small base station.
In the above-described embodiments, small base station provides interference-related information to its corresponding macro base station, so that macro base station is the small base station distributing radio resource based on described interference-related information, but the main body of in fact distributing related resource also can be a separate equipment, OAM (Operation AdministrationMaintenance for example, operation management maintain) equipment, described OAM equipment can analyze, predicts, plan and dispose that present embodiment does not limit this to daily network and business.
The schematic diagram of the disturbed condition of a kind of small base station that Fig. 4 provides for the embodiment of the invention.In the present embodiment, described macro base station is described small base station distributing radio resource based on described interference-related information, macro base station is after the positional information that gets access to the small base station transmission, ability information according to small base station, can estimate the general Serving cell radius r of small base station, and with the radius R coverage as this small base station interference space scope, the certain macro base station interference space scope that also can preserve its each small base station of subordinate in advance.But the already used frequency resource set of other all kinds of base station service areas (comprising other small base station or other macro base station) in the interference space of macro base station preview small base station A, if still have other residue Radio Resources, give small base station A with remaining allocation of radio resources; Otherwise, select in the set of already used frequency resource the minimum Radio Resource of small base station A level of interference, if promptly small base station A uses the minimum Radio Resource of this level of interference, its interference of receiving is less.The interference space that is appreciated that small base station is determined to have multiple implementation, only lifts several examples below and describes, and described example is not used in qualification the present invention.Can only consider the interference space of position in an example, as shown in Figure 4, macro base station can obtain the positional information of all small base stations of having started shooting of its subordinate, small base station A with reporting position information is the center, seek other website in certain radius R in-scope, described certain radius R is greater than the Serving cell radius r of small base station A.If in described particular range, have small base station B or macro base station C, think that small base station B or macro base station C can be used as the potential interference website of small base station A, the resource that small base station B or macro base station C use in interference space can not be assigned to small base station A; If small base station D is not in particular range, this small base station D is not the potential interference website of small base station A, and the resource that small base station D uses can be assigned to small base station A.In addition, can obtain the Radio Resource use information of the small base station of oneself paying close attention between the different macro base stations by X2 interface or other modes.In another example, positional information can be not only considered in the definition of interference space, also can consider the power information of other small base station, prevent that small base station transmitting power at a distance is big to the interference that this small base station A produces greatly, set this moment a value v=f (P, d), the function form of expression can be various, as v=P/d, P can be the transmitting power or the maximum transmission power of small base station, and d is the distance between the small base station.Macro base station can be the v value that small base station A calculates other websites E correspondence, if the v value is greater than default a certain threshold value v
0, then other websites E is in the interference space of small base station A.Even if different site distance are from far away, because the website transmitting power is big, may cause potential interference, this example can be avoided reducing the invalid distribution of Radio Resource with for there being the same resource of base station assigns of potential interference.In another example, macro base station can obtain the signal message of detected each different frequent points of small base station, and macro base station is not only considered interference space when carrying out resource allocation, also need to consider near the real signal behaviour in service of small base station, thereby make more accurate judgement.This example needs small base station the self check once wireless frequency (being also referred to as carrier frequency) around self, bandwidth and corresponding signal strength signal intensity, and just this process can consume certain hour and increase signaling consumption.
The present embodiment small base station is by reporting position information, and the allocation of radio resources that makes macro base station avoid selecting easily to cause interference is given this small base station, and the orthogonality of the Radio Resource of different small base station is distributed in assurance, improves service quality.
Be that example is introduced one embodiment of the present of invention below with the Home eNodeB.In family base station system, each HeNB is in the Macro eNB coverage cell at least, and when a HeNB inserted a MacroeNB, this Macro eNB was called the Donor eNB of this HeNB.HeNB can not have corresponding HeNB gateway, but then HeNB and Donor eNB direct communication.If HeNB has corresponding HeNBGW, then HeNB can report Donor eNB by HeNBGW with its relevant information, and Donor eNB can send to HeNBGW earlier after calculating schedule information, send to HeNB by HeNBGW again; Certainly, HeNB under the situation that has the HeNBGW gateway also can with Macro eNB direct communication.The simplification schematic flow sheet of a kind of scheduling method for wireless resource that Fig. 5 provides for embodiments of the invention, this method comprises:
S51: Home eNodeB is started shooting or is detected interference.
S52: Home eNodeB detects self position.HeNB can judge by described detection whether self-position changes after start.
S53: Home eNodeB reports the positional information of self to its donor base station.After each HeNB start or when detecting interference above predetermined threshold, all will detect self-position information earlier, if the positional information of this HeNB does not change, its positional information that reports can be the affirmation information that a position does not become; If positional information changes, can report its current location information to give Donor eNB.Certainly, HeNB also can provide its positional information to Donor eNB by gateway, promptly described positional information by the HeNB gateway forwards to Donor eNB.HeNB also can report self HeNB sign and this HeNB ability information, and described ability information comprises the carrier-frequency range, bandwidth range, maximum transmission power of HeNB etc., so that Donor eNB carries out scheduling of resource according to these information that report.Certainly, if when HeNB finds the self-position change, can select not reporting ability information, when Donor eNB finds its ability information of not storing this HeNB, obtain respective capabilities information to HeNB, perhaps Donor eNB can ask MME or HeNBGW to send described ability information.HeNB can report described information when Donor eNB initiates to insert.
S54: the positional information that donor base station reports according to Home eNodeB, distributing radio resource is given Home eNodeB.Donor eNB can be according to the allocation of carriers situation in the macrocell of its collection, and band information that HeNB uses around this HeNB and corresponding signal strength information, is the link assignment Radio Resource between this HeNB and its subordinate UE.Described signal strength information can be RSRP (Reference SignalReceiving Power, a Reference Signal Received Power) index.Resource distribution mode in the present embodiment in the mode of distributing radio resource and the existing cognition wireless technology is similar, Donor eNB can collect the positional information that a plurality of HeNB report, after the resource allocation and signal strength signal intensity of the relative situation in position of taking all factors into consideration a HeNB and peripheral HeNB and peripheral HeNB, for each HeNB distributes rational Radio Resource.
S55: donor base station sends wireless resource allocation information to Home eNodeB, with the indication assigned radio resource.
S56: Home eNodeB utilizes described assigned radio resource to provide service for its subordinate's subscriber equipment.Donor eNB is that the resource that HeNB distributes is used to HeNB subordinate UE service, if HeNB and its subordinate UE are wireless connections, HeNB can open its interface and use the resource transmission data of distributing with described UE on Radio Link.
Present embodiment HeNB passes through reporting position information, make Donor eNB to distribute rational Radio Resource according to its reporting information, the business that is used for HeNB and its subordinate UE, when Donor eNB is the HeNB Resources allocation, can reduce the possibility that occurs interfering with each other between adjacent HeNB, improve data transmission quality.
Be appreciated that in said process S54, HeNB also can detect on every side wireless signal strength and on every side wireless signal strength information report Donor eNB.HeNB can scan each frequency range in its capacity of equipment scope, detects each frequency range signal intensity, and above-mentioned information is reported Donor eNB.If a certain special frequency channel signal was strong around DonoreNB was known HeNB, then this frequency allocation can not given the link between HeNB and its subordinate UE, distribute but choose other appropriate wireless resources.Except the wireless signal information of positional information and HeNB detection, HeNB also can report self HeNB sign, allows Donor eNB know that the node capacity of current reporting information is the ability of HeNB type.
The simplification schematic flow sheet of the another kind of scheduling method for wireless resource that Fig. 6 a provides for embodiments of the invention, this method comprises:
S61a: Home eNodeB is started shooting or is detected interference.
S62a: Home eNodeB detects self position and wireless signal strength on every side, and is self selection Radio Resource.
S63a: Home eNodeB reports the positional information of self, wireless signal strength information and selected Radio Resource on every side to its donor base station.After each HeNB start or when detecting interference above predetermined threshold, all will detect self-position information earlier, if the positional information of this HeNB does not change, its positional information that reports can be the affirmation information that a position does not become; If positional information changes, can report its current location information to give Donor eNB.HeNB also can have the ability of autonomous selection Radio Resource, and gives Donor eNB with the resource reporting of selecting.HeNB can report described information when Donor eNB initiates to insert.
S64a: donor base station determines whether the selected Radio Resource of Home eNodeB is suitable, if not, and for Home eNodeB distributes new Radio Resource.Donor eNB can be according to the allocation of carriers situation in the macrocell of its collection, and band information that HeNB uses around this HeNB and corresponding signal strength information, judges whether the selected Radio Resource of this HeNB is suitable.Donor eNB can collect the positional information that a plurality of HeNB report, and after the resource allocation and signal strength signal intensity of the relative situation in position of taking all factors into consideration a HeNB and peripheral HeNB and peripheral HeNB, confirms whether the Radio Resource of this HeNB oneself selection is suitable.If DonoreNB determines that this kind selection is suitable, then only send confirmation and get final product, saved the bit information that is used for distributing radio resource in the transmission; If Donor eNB determines that this kind selection is improper, the new Radio Resource that can oneself distribute for HeNB.
S65a: donor base station sends wireless resource allocation information to Home eNodeB, with the new Radio Resource of indication distribution.
S66a: Home eNodeB utilizes the new Radio Resource of described distribution to provide service for its subordinate's subscriber equipment.If Donor eNB confirms that the selected resource of HeNB is suitable, then HeNB can receive the affirmation message from Donor eNB, can use its resource of oneself selecting to be its subordinate UE service.
The HeNB of present embodiment has the ability that the oneself selects Radio Resource, and report position and relevant information such as wireless signal strength on every side to Donor eNB, whether the selection of being confirmed HeNB by Donor eNB is suitable, can be that HeNB distributes new resource by Donor eNB in case of necessity, reduce the possibility that occurs interfering with each other between adjacent HeNB.
In the above-described embodiments, HeNB after selecting Radio Resource voluntarily, can directly set up and subordinate UE between Radio Link and adopt the Radio Resource of selecting voluntarily to serve this UE.If it is suitable that Donor eNB determines that HeNB elects, only send confirmation; Otherwise Donor eNB determines that the selection of HeNB is improper, can redistribute Radio Resource and give HeNB.HeNB can change according to the newly assigned resource of Donor eNB, and adopting new Radio Resource is described UE service.Adopt this method can guarantee to set up link fast between HeNB and its subordinate UE, for real time business provides favorable service.Shown in Fig. 6 b, the simplification flow process of another kind of scheduling method for wireless resource comprises:
S61b: Home eNodeB is started shooting or is detected interference.
S62b: Home eNodeB detects self position and wireless signal strength on every side, and is self selection Radio Resource.
S63b: Home eNodeB reports the positional information of self, wireless signal strength information and selected Radio Resource on every side to its donor base station.Specifically report the process can be referring to a last embodiment.
S64b: donor base station determines whether the selected Radio Resource of Home eNodeB is suitable, if not, and for Home eNodeB distributes new Radio Resource.Concrete resource re-allocation process can be referring to a last embodiment.
S65b: use the Radio Resource of described selection to serve self terminal.
S66b: donor base station sends wireless resource allocation information to Home eNodeB, with the new Radio Resource of indication distribution.
S67b: Home eNodeB utilizes the new Radio Resource of described distribution to provide service for its subordinate's subscriber equipment.
Be appreciated that S64b and S65b are carried out respectively by donor base station and Home eNodeB, be not subjected to the restriction of sequencing to each other.
In the above-described embodiments, HeNB can also can report HeNB indication sign (Home eNodeB identity validation sign) report self-position information, wireless signal strength information and self HeNB sign on every side when Donor eNB initiates access procedure; HeNB also can utilize the interface of HeNB and DonoreNB after each start, report HeNB indication sign separately.It is a HeNB that described HeNB indication sign is used to indicate the equipment of reporting information, makes Donor eNB know that this equipment possesses the ability of HeNB, rather than UE or other radio nodes.
If have the direct communication interface between HeNB and Donor eNB, can be in the two direct transmission information.If do not have the direct communication interface between HeNB and Donor eNB, but by HeNBGW communication, the information that HeNB can report needs reports HeNBGW, by HeNBGW described information is reported the Donor eNB of this HeNB correspondence again; Correspondingly, Donor eNB also can send to HeNBGW with self information, by HeNBGW this information is sent to HeNB again.Be appreciated that in the above-described embodiments HeNBGW can report self-ability information to Donor eNB; If the HeNBGW ability information of having preserved HeNB, then HeNB can not will self-ability information report Donor eNB; Also can the HeNB ability information of its storage be reported DonoreNB together with other relevant informations by HeNBGW; Perhaps, when Donor eNB finds oneself not have the ability information of HeNB, can obtain this ability information, perhaps also can ask MME to send this ability information to HeNBGW.If Donor eNB selects to HeNBGW acquisition capability information, HeNBGW can report Donor eNB with the HeNB ability information of own storage, as if this ability information not, then can ask for ability information to HeNB, reports to Donor eNB again.
In the above-described embodiments, HeNB can only have a sub-district, also can have a plurality of sub-districts.When there is a plurality of sub-district in a HeNB, the then above-mentioned related information content that reports will refine to sub-district (cell) rank of HeNB.For example HeNB can report the wireless frequency operating position of each sub-district of HeNB; DonoreNB promptly carries out resource allocation at each sub-district of HeNB for the resource that this HeNB subordinate UE distributes also can be accurate to the cell rank.
In the above-described embodiments, Donor eNB utilizes the interface between it and HeNB or HeNBGW, obtain the information that HeNB reports, this information can comprise the information of interference management, scheduling of resource needs, and utilize this information to carry out resource allocation, can avoid same asset is distributed to the big different HeNB of degree spatially close or interfering with each other, effectively promote the availability of frequency spectrum, reduce and disturb.
In Fig. 5, Fig. 6 a and three embodiment of Fig. 6 b, small base station provides interference-related information to its corresponding macro base station, so that macro base station is the small base station distributing radio resource based on described interference-related information, but the main body of in fact distributing related resource also can be a separate equipment, OAM (Operation Administration Maintenance for example, operation management maintain) equipment, described OAM equipment can analyze, predicts, plan and dispose that present embodiment does not limit this to daily network and business.
The schematic diagram of a kind of small base station that Fig. 7 provides for embodiments of the invention, described small base station 70 comprises:
The small base station 70 of present embodiment includes but not limited to that Pico, HeNB and Femto are at interior various small base stations, itself and the similar macro base station that inserts of terminal, accept the resource that macro base station distributes, and utilize the services sites of described resource, for terminal provides service as its subordinate terminal.Small base station is by providing self interference-related information to macro base station, helping macro base station is small base station reasonable distribution Radio Resource, reduces between small base station or the interference that may occur between small base station and macro base station.
Further, described small base station 70 also can comprise: detecting unit 74, and be coupled to described information and report unit 71, be used to detect small base station 70 positions, and report unit 71 that the positional information that detects the described small base station 70 that obtains is provided to described information.
Further, described small base station 70 also can comprise: selected cell is used to described small base station 70 to select Radio Resource, and the information of selected Radio Resource is provided to macro base station; Correspondingly, information acquisition unit 72 is used for: obtain the affirmation information that macro base station is agreed the Radio Resource that small base station 70 is selected, perhaps macro base station is the information of the Radio Resource redistributed of small base station 70.
The schematic diagram of a kind of macro base station that Fig. 8 provides for embodiments of the invention, described macro base station 80 comprises:
Information acquisition unit 81 is used to obtain the interference-related information that small base station provides, and comprises the positional information of described small base station in the described interference-related information;
Resource determining unit 82 is used for the positional information based on described small base station, determines the interior Radio Resource operating position of interference space scope of this small base station;
Resource allocation unit 83 is used for when having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, gives described small base station with described untapped allocation of radio resources;
Notification unit 84 is used for providing to described small base station the information of assigned radio resource.
The macro base station 80 of present embodiment not only can directly provide service for subscriber equipment, the base station that also can be a plurality of more ting models is as services sites, obtain the interference-related information of a plurality of small base stations of its subordinate, and carry out wireless resource allocation based on the interference-related information of small base station, reduce the possibility that is assigned with the same wireless resource between the small base station that forms potential interference mutually, reduce between small base station or the interference between small base station and macro base station.
Further, described resource allocation unit 83 also can be used for: when not having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, in set of radio resources, select small base station is disturbed minimum Radio Resource, give described small base station selected allocation of radio resources.
Further, described macro base station 80 also can comprise: determining unit, be used to obtain the information of small base station for the Radio Resource self selected, whether the Radio Resource of determining described small base station selection is suitable, if the Radio Resource that described small base station is selected is improper, for described small base station is redistributed Radio Resource.
The a plurality of described small base stations of the macro base station portability that present embodiment provides, also other terminal equipment of portability, by receiving the interference-related information of subordinate's small base station, reasonably carry out allocation of radio resources, make between the different small base station and small base station and other type of base station (as other macro base station) between large disturbance can not appear, avoid 2 may exist the website of interference to be assigned with same resource as far as possible, improve the service quality of small base station.Be appreciated that, the correlation function of macro base station distributing radio resource also can be realized by miscellaneous equipment, OAM (Operation Administration Maintenance for example, operation management maintain) equipment can comprise described information acquisition unit 81, resource determining unit 82, resource allocation unit 83 and notification unit 84, is the small base station Resources allocation to realize based on interference-related information.
A kind of schematic diagram of realizing the system of wireless resource scheduling that Fig. 9 provides for the embodiment of the invention, this system comprises:
At least one small base station 91 is used for providing interference-related information to OAM equipment 93, comprises the positional information of described small base station 91 in the described interference-related information; Obtain the information of OAM equipment 93 assigned radio resource, described Radio Resource is distributed to described small base station 91 by described OAM equipment 93 based on described interference-related information; Utilize described Radio Resource to provide service for its subordinate's subscriber equipment.
Macro base station 92 is for described at least one small base station 91 provides the access network service;
Described OAM equipment 93 is used to obtain the interference-related information that small base station 91 provides, and based on the positional information of described small base station 91, determines the interior Radio Resource operating position of interference space scope of this small base station 91; When having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station 92, give described small base station 91 with described untapped allocation of radio resources, and the information of assigned radio resource is provided to described small base station 91.
Described OAM equipment 93 can obtain the required necessary information of distributing radio resource from macro base station 92 and small base station 91, and finishes the inter-related task of allocation of radio resources.This OAM equipment 93 can link to each other with wired or wireless with macro base station 92, obtains in the set of radio resources of macro base station 92 and information such as resource operating position in the described set; This OAM equipment 93 can with directly obtain information from small base station 91, also can obtain indirectly by macro base station 92, be after macro base station 92 obtains the information of small base station 91 this information to be transmitted to OAM equipment 93, the OAM equipment 93 of this moment only is an equipment, can link to each other with other network equipment by wired or wireless mode, present embodiment does not limit concrete implementation method.
In the present embodiment, small base station 91 can be communicated by letter by small base station gateway 94 with macro base station 92 or 93 of OAM equipment, as shown in Figure 9, several small base stations 91 can have a small base station gateway 94, in small base station 91 and macro base station 92 or 93 forwardings of OAM equipment data, present embodiment is not done further restriction to this by described small base station gateway 94.
One of ordinary skill in the art will appreciate that all or part of flow process among the said method embodiment, can instruct related hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above only is several embodiments of the present invention, and those skilled in the art can carry out various changes or modification to the present invention according to the disclosed content of application documents and not break away from the spirit and scope of the present invention.One of ordinary skill in the art will appreciate that between described embodiment or under situation about not clashing, can interosculate between the feature of different embodiment and form new embodiment.
Claims (17)
1. a scheduling method for wireless resource is characterized in that, comprising:
Small base station provides interference-related information to scheduling of resource equipment, comprises the positional information of described small base station in the described interference-related information;
Described small base station obtains the information of the Radio Resource of scheduling of resource devices allocation, and described Radio Resource is to distribute to described small base station by described scheduling of resource equipment based on described interference-related information;
Described small base station utilizes described Radio Resource to provide service for subscriber equipment.
2. the method for claim 1 is characterized in that, described scheduling of resource equipment is that macro base station and this macro base station are the donor base station of described small base station, and described small base station provides interference-related information to comprise to scheduling of resource equipment:
Small base station sends interference-related information by wired or wireless interface to described macro base station; Perhaps
Small base station is forwarded to described macro base station by the small base station gateway with interference-related information.
3. the method for claim 1 is characterized in that, described scheduling of resource equipment is operation management maintain equipment, and described small base station provides interference-related information to comprise to scheduling of resource equipment:
Small base station sends interference-related information by wired or wireless interface to described operation management maintain equipment; Perhaps
Small base station is forwarded to described operation management maintain equipment by small base station gateway or macro base station with interference-related information.
4. the method for claim 1 is characterized in that, also comprises: small base station is after the start or after detecting interference, by detecting the positional information that self-position obtains small base station.
5. method as claimed in claim 4 is characterized in that, when small base station detects the position of this small base station when identical with the preceding position that once reports, the positional information of described small base station is for confirming the information of invariant position.
6. the method for claim 1 is characterized in that, also comprises in the described interference-related information: frequency range signal intensity information, the carrier-frequency range of small base station, the bandwidth range and the maximum transmission power of carrier frequency correspondence in the capacity of equipment scope of small base station.
7. as each described method in the claim 1 to 6, it is characterized in that, also comprise: described small base station is selected Radio Resource for self, and the information of the Radio Resource of this small base station selection is provided to scheduling of resource equipment;
The information that described small base station obtains the Radio Resource of scheduling of resource devices allocation comprises: described small base station obtains the information of the Radio Resource that scheduling of resource equipment redistributes for this small base station, and perhaps described small base station obtains the affirmation information that scheduling of resource equipment is agreed the Radio Resource that this small base station is selected.
8. a scheduling method for wireless resource is characterized in that, comprising:
Obtain the interference-related information that small base station provides, comprise the positional information of described small base station in the described interference-related information;
Based on the positional information of described small base station, determine the interior Radio Resource operating position of interference space scope of this small base station;
When having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, give described small base station with described untapped allocation of radio resources, described macro base station is the donor base station of described small base station;
The information of assigned radio resource is provided to described small base station.
9. method as claimed in claim 8 is characterized in that, also comprises:
When not having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, in described set of radio resources, select small base station is disturbed minimum Radio Resource, give described small base station with selected allocation of radio resources.
10. method as claimed in claim 8 or 9 is characterized in that, also comprises:
Obtain the information of small base station for the Radio Resource of this small base station selection;
Whether the Radio Resource of determining the small base station selection is suitable;
The Radio Resource of selecting when small base station is improper, for this small base station is redistributed Radio Resource; The Radio Resource of selecting when small base station is suitable, sends the affirmation information of the Radio Resource of agreeing that small base station is selected to this small base station.
11. a small base station is characterized in that, comprising:
Information reports the unit, and being used for provides interference-related information to scheduling of resource equipment, comprises the positional information of described small base station in the described interference-related information;
Information acquisition unit is used to obtain the information of the Radio Resource of scheduling of resource devices allocation, and described Radio Resource is to distribute to described small base station by described scheduling of resource equipment based on described interference-related information;
Communication unit is used to utilize described Radio Resource to provide service for subscriber equipment.
12. small base station as claimed in claim 11 is characterized in that, detecting unit is coupled to described information and reports the unit, is used to detect the small base station position, and reports the unit that the positional information that detects the described small base station that obtains is provided to described information.
13. as claim 11 or 12 described small base stations, it is characterized in that, also comprise: selected cell is used to this small base station to select Radio Resource, and the information of selected Radio Resource is provided to scheduling of resource equipment;
Described information acquisition unit is used for: obtain the affirmation information that scheduling of resource equipment is agreed the Radio Resource that small base station is selected, perhaps obtain scheduling of resource equipment and be the information of the Radio Resource that small base station redistributes.
14. a scheduling of resource equipment is characterized in that, comprising:
Information acquisition unit is used to obtain the interference-related information that small base station provides, and comprises the positional information of described small base station in the described interference-related information;
The resource determining unit is used for the positional information based on described small base station, determines the interior Radio Resource operating position of interference space scope of this small base station;
Resource allocation unit is used for giving described small base station with described untapped allocation of radio resources when having the untapped Radio Resource of interference space scope in the set of radio resources of alms giver's macro base station of small base station;
Notification unit is used for providing to described small base station the information of assigned radio resource.
15. scheduling of resource equipment as claimed in claim 14, it is characterized in that, described resource allocation unit also is used for: when not having the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, in set of radio resources, select small base station is disturbed minimum Radio Resource, give described small base station selected allocation of radio resources.
16. scheduling of resource equipment as claimed in claim 14, it is characterized in that, also comprise: determining unit, be used to obtain the information of small base station for the Radio Resource of this small base station self selection, whether the Radio Resource of determining described small base station selection is suitable, if the Radio Resource that described small base station is selected is improper, for described small base station is redistributed Radio Resource.
17., it is characterized in that alms giver's macro base station that described scheduling of resource equipment is operation management maintain equipment or described small base station as each described scheduling of resource equipment in the claim 14 to 16.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010134363.6A CN102202404B (en) | 2010-03-23 | 2010-03-23 | Method and equipment for scheduling radio resource |
| PCT/CN2011/071059 WO2011116646A1 (en) | 2010-03-23 | 2011-02-17 | Method and device for scheduling wireless resources |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010134363.6A CN102202404B (en) | 2010-03-23 | 2010-03-23 | Method and equipment for scheduling radio resource |
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| Publication Number | Publication Date |
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| CN102202404A true CN102202404A (en) | 2011-09-28 |
| CN102202404B CN102202404B (en) | 2015-01-21 |
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| CN201010134363.6A Expired - Fee Related CN102202404B (en) | 2010-03-23 | 2010-03-23 | Method and equipment for scheduling radio resource |
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| WO (1) | WO2011116646A1 (en) |
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Also Published As
| Publication number | Publication date |
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| WO2011116646A1 (en) | 2011-09-29 |
| CN102202404B (en) | 2015-01-21 |
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