CN102202404B - Method and equipment for scheduling radio resource - Google Patents
Method and equipment for scheduling radio resource Download PDFInfo
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- CN102202404B CN102202404B CN201010134363.6A CN201010134363A CN102202404B CN 102202404 B CN102202404 B CN 102202404B CN 201010134363 A CN201010134363 A CN 201010134363A CN 102202404 B CN102202404 B CN 102202404B
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- base station
- small base
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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, particularly relate to a kind of scheduling method for wireless resource and equipment.
Background technology
Macro base station and small base station is generally included in the heterogeneous network based on legacy cellular net, with LTE (Long Term Evolution, Long Term Evolution) network is example, at Macro (grand) eNB (eNodeB, evolution base station, be called for short base station) all kinds of small base station can be placed under coverage, as WAP (wireless access point) such as Pico (one of small base station), HeNB (Home eNB, Home eNodeB), Femto (one of small base station).These small base stations can by wired (as optical fiber) mode access to wireless communication net or Internet (Yin Te) network, and cable network access capacity is large, not by the impact of Radio Resource scarcity, therefore, these small base stations have higher throughput.The UE (User Equipment, subscriber equipment) of access Macro eNB, after entering these small base station coverages, if this UE possesses the authority of access small base station, then wirelessly accesses small base station.In prior art, a kind of schematic diagram of home base station network framework as shown in Figure 1, HeNB or Macro eNB can (S1 interface) directly and MME (MobilityManagement Entity in a wired fashion, mobile management entity) be connected, the relevant information of HeNB is stored in MME, or multiple HeNB accesses HeNBGW (HeNB Gate Way in a wired fashion, home gateway), then access MME by HeNBGW.The verification process of HeNB subordinate UE, the preliminary assigning process of Radio Resource are all completed by MME and HeNBGW.
Under the macrocell that traditional Macro eNB covers, because the introducing of other small base stations, add a lot of Microcell, or even picocell, and the fission of community, the reusable probability of Radio Resource is increased, and may interference be produced.Fig. 2 is the schematic diagram that cell splitting appears in a macrocell, and containing multiple Home eNodeB in a macrocell, represent with HeNB A, HeNB B, HeNB C in Fig. 2, each Home eNodeB can set up a Microcell.In 5 subscriber equipmenies, UE1 and UE2 directly accepts 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 each other and transmitting power is lower, even if 2 communities use identical frequency resource f1, interference can not be produced each other.If but when the UE2 link-quality of HeNB A is deteriorated, HeNB A can increase its transmitting power, causes the coverage of HeNB A to increase, probably affect the channel quality of its contiguous HeNB B, interference is produced to the UE of the HeNB B using same frequency resources f1.On the other hand, although HeNB is compared with the poor mobility of UE, also can exists and move phenomenon, if HeNBA moves near HeNB B, now both are owing to using same Radio Resource f1, and wireless link also can be interfering with each other.Therefore how to be reasonably each HeNB distributing radio resource, to alleviate between the close HeNB in space interfering with each other just becomes a problem.
Summary of the invention
The embodiment of the present invention provides a kind of scheduling method for wireless resource and equipment, to alleviate between 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, comprises:
Small base station provides interference-related information to scheduling of resource equipment, and described interference-related information comprises the positional information of described small base station;
The information of the Radio Resource that described small base station Gains resources controlling equipment distributes, described Radio Resource distributes 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, a kind of scheduling method for wireless resource is provided, comprises:
Obtain the interference-related information that small base station provides, described interference-related information comprises the positional information of described small base station;
Based on the positional information of described small base station, Radio Resource service condition within the scope of the interference space determining this small base station;
When there is the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, give described small base station by described untapped allocation of radio resources, described macro base station is the donor base station of described small base station;
The information of the Radio Resource of distribution is provided to described small base station.
According to another embodiment of the present invention, a kind of small base station is provided, comprises:
Information reporting unit, for providing interference-related information to scheduling of resource equipment, described interference-related information comprises the positional information of described small base station;
Information acquisition unit, for the information of the Radio Resource that Gains resources controlling equipment distributes, described Radio Resource distributes to described small base station by described scheduling of resource equipment based on described interference-related information;
Communication unit, provides service for utilizing described Radio Resource for subscriber equipment.
According to another embodiment of the present invention, a kind of scheduling of resource equipment is provided, comprises:
Information acquisition unit, for obtaining the interference-related information that small base station provides, described interference-related information comprises the positional information of described small base station;
Resource determining unit, for the positional information based on described small base station, Radio Resource service condition within the scope of the interference space determining this small base station;
Resource allocation unit, for when there is 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, gives described small base station by described untapped allocation of radio resources;
Notification unit, for providing the information of the Radio Resource of distribution to described small base station.
According to the description to technique scheme, the embodiment of the present invention has the following advantages: small base station is by providing self interference-related information to a scheduling of resource equipment, make scheduling of resource equipment can carry out Resourse Distribute based on described interference-related information, be conducive to for 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.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing used be needed to be briefly described embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of a kind of home base station network framework in 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 present invention;
The simple flow schematic diagram of a kind of scheduling method for wireless resource that Fig. 5 provides for embodiments of the invention;
The simple flow schematic diagram of the another kind of scheduling method for wireless resource that Fig. 6 a provides for embodiments of the invention;
The simple flow schematic diagram 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 realizing the system of wireless resource scheduling that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The schematic diagram of a kind of scheduling method for wireless resource that Fig. 3 a provides for embodiments of the invention, the method comprises:
S31a: small base station provides interference-related information to macro base station, described interference-related information comprises the positional information of described small base station;
S32a: described small base station obtains the information of the Radio Resource that macro base station distributes, and described Radio Resource distributes 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 the present embodiment can be the various small base stations comprising Pico, HeNB and Femto, its accessible described macro base station, and provide self interference-related information to macro base station, so that macro base station carries out Resourse Distribute based on described interference-related information, being conducive to macro base station is small base station reasonable distribution Radio Resource, small base station can be made and form to it possibility that other base station of potential interference is assigned with same wireless resource to reduce, between small base station or between small base station and macro base station, occur that situation about 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; Or small base station passes through small base station gateway to macro base station retransmitted jamming relevant information.
Alternatively, described small base station provides interference-related information to comprise to macro base station: small base station after powering or after interference being detected, detection self-position, obtains own location information.Further, when small base station detects that the position of this small base station is identical with the front position once reported, the confirmation of invariant position is provided to macro base station; When small base station detects that the position of this small base station is different from the front position once reported, provide the new location information detected to macro base station.
Alternatively, described small base station can detect the signal strength signal intensity of frequency range within the scope of its capacity of equipment, and carries the information of described signal strength signal intensity in described interference-related information.
Further, described interference-related information also can comprise: the mark of small base station, the ability information of small base station, and described ability information comprises: the carrier-frequency range of small base station, the bandwidth range of corresponding carrier frequency and maximum transmission power.When macro base station has known the mark of small base station, then it is reported to identify without the need to small base station.
Alternatively, described method also can comprise: described small base station is that self selects Radio Resource, and the information of the Radio Resource providing it to select to macro base station; Correspondingly, the information that described small base station obtains the Radio Resource that macro base station distributes comprises: described small base station obtains the information that macro base station is the Radio Resource that it is redistributed, or described small base station obtains the confirmation that macro base station agrees to its Radio Resource selected.
Alternatively, when described small base station overlay area is divided into multiple community, the Radio Resource service condition of described multiple community can in described interference-related information, also be comprised.
In the above-described embodiments, small base station provides interference-related information to the macro base station of its correspondence, so that macro base station is 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 an independently equipment, can be such as an OAM (OperationAdministration Maintenance, operation management maintain) equipment, described OAM equipment can carry out prediction, planning and configuration to commodity network and business, and the present embodiment does not limit this.
The schematic diagram of the another kind of scheduling method for wireless resource that Fig. 3 b provides for embodiments of the invention, the method comprises:
S31b: macro base station obtains the interference-related information that small base station provides, and described interference-related information comprises the positional information of small base station;
S32b: described macro base station based on the positional information of described small base station, Radio Resource service condition within the scope of the interference space determining this small base station;
S33b: when there is the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, described untapped allocation of radio resources is given described small base station by described macro base station;
S34b: macro base station provides the information of the Radio Resource of distribution to described small base station.
The macro base station of the present embodiment can obtain the interference-related information of the multiple small base station of its subordinate, and the distribution of Radio Resource is carried out based on the interference-related information of small base station, reduce the possibility being assigned with same wireless resource between the mutual small base station forming potential interference, reduce the potential interference between small base station or between small base station and macro base station.The untapped Radio Resource of the interference space of small base station described in the present embodiment scope is the Radio Resource that in macro base station set of radio resources, not disturbed spatial dimension uses, the website that described interference website can be interference source website or be disturbed by described small base station.Further, when there is not the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, described macro base station is selected to disturb minimum Radio Resource to small base station in described set of radio resources, gives described small base station by selected allocation of radio resources.
Alternatively, macro base station provides the information of the Radio Resource of distribution to comprise to described small base station: the information of the Radio Resource of distribution is sent to small base station by wired or wireless interface by macro base station, or the information of the Radio Resource of distribution is forwarded to small base station by small base station gateway by macro base station.
Alternatively, the ability information of small base station in described interference-related information, can be comprised, or 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 of the mark of small base station, the carrier-frequency range of small base station, corresponding carrier frequency and maximum transmission power.Certainly, macro base station can preserve the ability information of each small base station of its subordinate in advance, and the present embodiment does not limit this.
Alternatively, macro base station can obtain the information that small base station is the Radio Resource that self selects, determine that whether the Radio Resource that small base station is selected is suitable, macro base station can be this small base station and redistributes Radio Resource, or sends the confirmation agreeing to its Radio Resource selected to this small base station.
In the above-described embodiments, small base station provides interference-related information to the macro base station of its correspondence, so that macro base station is 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 an independently equipment, a such as OAM (Operation AdministrationMaintenance, operation management maintain) equipment, described OAM equipment can carry out prediction, planning and configuration to commodity network and business, and the present embodiment does not limit this.
The schematic diagram of the disturbed condition of a kind of small base station that Fig. 4 provides for the embodiment of the present 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 getting small base station transmission, according to the ability information of small base station, the Serving cell radius r that small base station is general can be estimated, and using radius R coverage as this small base station interference space scope, certain macro base station also can preserve the interference space scope of each small base station of its subordinate in advance.Macro base station can the frequency resource groups that used of other all kinds of base station service areas (comprising other small base station or other macro base station) in the interference space of preview small base station A, if still have other residue Radio Resources, by remaining allocation of radio resources to small base station A; Otherwise select Radio Resource minimum to small base station A level of interference in the frequency resource groups used, if namely small base station A uses the Radio Resource that this level of interference is minimum, its interference received is less.Be appreciated that the interference space of small base station is determined there is multiple implementation, only lift several example below and be described, described example is not used in restriction the present invention.Only can 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, centered by the small base station A of reporting position information, in certain radius R in-scope, find other website, described certain radius R is greater than the Serving cell radius r of small base station A.If there is small base station B or macro base station C in described particular range, 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 uses 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, the Radio Resource use information of the small base station that oneself is paid close attention to is obtained between different macro base station by X2 interface or other modes.In another example, the definition of interference space not only can consider positional information, also the power information of other small base station can be considered, prevent the larger interference that this small base station A is produced of small base station transmitting power at a distance greatly, now set value v=f (P, d), the function form of expression can be various, as v=P/d, P can be transmitting power or the maximum transmission power of small base station, d is the distance between small base station.Macro base station can be small base station A and calculates v value corresponding to other websites E, if 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 from away from, because website transmitting power is large, may cause potential interference, this example can be avoided resource same for the base station assigns for there is potential interference, reduces the invalid distribution of Radio Resource.In another example, macro base station can obtain the signal message of each different frequent points that small base station detects, macro base station, when carrying out Resourse Distribute, not only considers interference space, also need to consider real signal behaviour in service near small base station, thus make and judging more accurately.This example needs the wireless frequency (also referred to as carrier frequency) of small base station self-inspection once around self, the signal strength signal intensity that bandwidth sum is corresponding, 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 making macro base station avoid selecting easily to cause interference gives this small base station, ensures the orthogonality distributing to the Radio Resource of different small base station, improves service quality.
One embodiment of the present of invention are introduced below for Home eNodeB.In family base station system, each HeNB is at least in a Macro eNB coverage cell, and when a HeNB accesses a MacroeNB, this Macro eNB is called the Donor eNB of this HeNB.HeNB can not have corresponding HeNB gateway, then HeNB and Donor eNB can direct communication.If HeNB has corresponding HeNBGW, then its relevant information can be reported Donor eNB by HeNBGW by HeNB, and Donor eNB first can be sent to HeNBGW after calculating schedule information, then sends to HeNB by HeNBGW; Certainly, HeNB when there is HeNBGW gateway also can with Macro eNB direct communication.The simple flow schematic diagram of a kind of scheduling method for wireless resource that Fig. 5 provides for embodiments of the invention, the method comprises:
S51: Home eNodeB is started shooting or interference detected.
S52: Home eNodeB detects self position.By described detection, HeNB can judge whether self-position changes after powering.
S53: Home eNodeB reports the positional information of self to its donor base station.Each HeNB start is rear or when detecting that interference exceedes predetermined threshold, all first will detect own location information, if the positional information of this HeNB does not change, its positional information reported can be the confirmation that a position does not become; If positional information changes, its current location information can be reported to Donor eNB.Certainly, HeNB also provides its positional information by gateway to Donor eNB, namely described positional information by HeNB gateway forwards to Donor eNB.HeNB also can report self HeNB to identify and this HeNB ability information, and described ability information comprises the carrier-frequency range, bandwidth range, maximum transmission power etc. of HeNB, so that Donor eNB carries out scheduling of resource according to these information reported.Certainly, if when HeNB finds that self-position changes, not reporting ability information can be selected, when Donor eNB finds that it does not store the ability information of this HeNB, obtain respective capabilities information to HeNB, or Donor eNB can ask MME or HeNBGW to send described ability information.HeNB can report described information when initiating access to Donor eNB.
S54: the positional information that donor base station reports according to Home eNodeB, distributing radio resource is to Home eNodeB.Allocation of carriers situation in the macrocell that Donor eNB can collect according to it, and the signal strength information of the band information that around this HeNB, HeNB uses and correspondence are the link assignment Radio Resource between this HeNB and its subordinate UE.Described signal strength information can be RSRP (Reference SignalReceiving Power, Reference Signal Received Power) index.Resource distribution mode in the present embodiment in the mode of distributing radio resource and existing cognition wireless technology is similar, Donor eNB can collect the positional information that multiple HeNB reports, after the Resourse Distribute and signal strength signal intensity of the position relative case and periphery HeNB that consider a HeNB and periphery HeNB, for each HeNB distributes rational Radio Resource.
S55: donor base station sends the assignment information of Radio Resource, to indicate the Radio Resource of distribution to Home eNodeB.
S56: Home eNodeB utilizes the Radio Resource of described distribution to provide service for its subordinate's subscriber equipment.Donor eNB is that the resource that HeNB distributes is used to HeNB subordinate UE and serves, if HeNB and its subordinate UE is wireless connections, HeNB can open its interface and use the resource transmission data of distribution on wireless links with described UE.
The present embodiment HeNB passes through reporting position information, make Donor eNB can distribute rational Radio Resource according to its reporting information, for the business of HeNB and its subordinate UE, the possibility occurring between adjacent HeNB interfering with each other can be reduced when Donor eNB is HeNB Resources allocation, improve data transmission quality.
Be appreciated that in said process S54, HeNB also can detect wireless signal strength by wireless signal strength information reporting around this to Donor eNB around.HeNB can scan each frequency range within the scope of its capacity of equipment, detects the signal strength signal intensity of each frequency range, by above-mentioned information reporting to Donor eNB.If DonoreNB to know around HeNB that a certain special frequency channel signal is strong, then can not by this frequency allocation to the link between HeNB and its subordinate UE, but choose other suitable Radio Resources and distribute.Except the wireless signal information that positional information and HeNB detect, HeNB also can report self HeNB to identify, and the node capacity of current reporting information is the ability of HeNB type to allow Donor eNB know.
The simple flow schematic diagram of the another kind of scheduling method for wireless resource that Fig. 6 a provides for embodiments of the invention, the method comprises:
S61a: Home eNodeB is started shooting or interference detected.
S62a: Home eNodeB detects self position and surrounding wireless signal strength, and select Radio Resource for self.
S63a: Home eNodeB reports positional information, around wireless signal strength information and the selected Radio Resource of self to its donor base station.Each HeNB start is rear or when detecting that interference exceedes predetermined threshold, all first will detect own location information, if the positional information of this HeNB does not change, its positional information reported can be the confirmation that a position does not become; If positional information changes, its current location information can be reported to Donor eNB.HeNB also can have the ability from main separation Radio Resource, and by the resource reporting of selection to Donor eNB.HeNB can report described information when initiating access to Donor eNB.
S64a: whether the Radio Resource selected by donor base station determination Home eNodeB is suitable, if not, for Home eNodeB distributes new Radio Resource.Allocation of carriers situation in the macrocell that Donor eNB can collect according to it, and the signal strength information of the band information that around this HeNB, HeNB uses and correspondence, judge that selected by this HeNB, whether Radio Resource is suitable.Donor eNB can collect the positional information that multiple HeNB reports, and after the Resourse Distribute and signal strength signal intensity of the position relative case and periphery HeNB that consider a HeNB and periphery HeNB, confirms that whether the Radio Resource that this HeNB oneself selects is suitable.If DonoreNB determines that this kind of selection is suitable, then only send confirmation, save the bit information for distributing radio resource in transmission; If Donor eNB determines that this kind of selection is improper, but the new Radio Resource oneself distributed for HeNB.
S65a: donor base station sends the assignment information of Radio Resource, to indicate the new Radio Resource of distribution to Home eNodeB.
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 resource selected by HeNB is suitable, then HeNB can receive the acknowledge message from Donor eNB, and its resource oneself selected can be used to serve for its subordinate UE.
The HeNB of the present embodiment has the ability of self selective Radio Resource, and report the relevant information such as position and surrounding wireless signal strength to Donor eNB, confirm that whether the selection of HeNB is suitable by Donor eNB, can be that HeNB distributes new resource by Donor eNB if desired, reduce the possibility occurring between adjacent HeNB interfering with each other.
In the above-described embodiments, HeNB, after selecting Radio Resource voluntarily, can directly set up and wireless link between subordinate UE adopt the Radio Resource selected 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, Radio Resource can be redistributed to HeNB.HeNB can change according to the newly assigned resource of Donor eNB, adopts new Radio Resource to be that described UE serves.Adopt and can ensure in this way to set up link fast between HeNB and its subordinate UE, for real time business provides good service.As shown in Figure 6 b, the simple flow of another kind of scheduling method for wireless resource comprises:
S61b: Home eNodeB is started shooting or interference detected.
S62b: Home eNodeB detects self position and surrounding wireless signal strength, and select Radio Resource for self.
S63b: Home eNodeB reports positional information, around wireless signal strength information and the selected Radio Resource of self to its donor base station.Specifically report process can see a upper embodiment.
S64b: whether the Radio Resource selected by donor base station determination Home eNodeB is suitable, if not, for Home eNodeB distributes new Radio Resource.Concrete resource re-allocation process can see a upper embodiment.
S65b: use the Radio Resource of described selection to serve own terminal.
S66b: donor base station sends the assignment information of Radio Resource, to indicate the new Radio Resource of distribution to Home eNodeB.
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 is performed respectively by donor base station and Home eNodeB, to each other not by the restriction of sequencing.
In the above-described embodiments, HeNB can report own location information, around wireless signal strength information and self HeNB to identify when initiating access procedure to Donor eNB, also can report HeNB indication mark (Home eNodeB identity validation mark); HeNB also after each start, can utilize the interface of HeNB and DonoreNB, reports separately HeNB indication to identify.The equipment that described HeNB indication mark is used to indicate reporting information is a HeNB, and Donor eNB is known, and this equipment possesses the ability of HeNB, instead of UE or other radio nodes.
If there is direct communication interface between HeNB and Donor eNB, can between the two direct transmission of information.If there is not direct communication interface between HeNB and Donor eNB, but communicated by HeNBGW, HeNB can will need the information reporting reported to HeNBGW, then gives Donor eNB corresponding to this HeNB by HeNBGW by described information reporting; Correspondingly, self information also can be sent to HeNBGW by Donor eNB, then by HeNBGW, this information is sent to HeNB.Be appreciated that in the above-described embodiments, HeNBGW can report self-ability information to Donor eNB; If HeNBGW has saved the ability information of HeNB, then HeNB can not self-ability information reporting Donor eNB; The HeNB ability information that also can be stored by HeNBGW reports DonoreNB together with other relevant informations; Or, when Donor eNB finds the ability information oneself not having HeNB, this ability information can be obtained to HeNBGW, or MME also can be asked to send this ability information.If Donor eNB selects to HeNBGW acquisition capability information, the HeNB ability information that oneself stores can be reported Donor eNB by HeNBGW, if not this ability information, then can ask for ability information to HeNB, then report to Donor eNB.
In the above-described embodiments, HeNB can only You Yige community, also can there is multiple community.When a HeNB exists multiple community, then the above-mentioned related information content reported will refine to community (cell) rank of HeNB.Such as HeNB can report the wireless frequency service condition of each community of HeNB; DonoreNB is that the resource that this HeNB subordinate UE distributes also can be accurate to cell rank, and Resourse Distribute is carried out in each community namely for HeNB.
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 Resourse Distribute, can avoid same asset being distributed to the different HeNB that spatially close or degree interfering with each other is large, effectively improve the availability of frequency spectrum, reduce interference.
In Fig. 5, Fig. 6 a and Fig. 6 b tri-embodiments, small base station provides interference-related information to the macro base station of its correspondence, so that macro base station is 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 an independently equipment, a such as OAM (Operation Administration Maintenance, operation management maintain) equipment, described OAM equipment can carry out prediction, planning and configuration to commodity network and business, and the present embodiment does not limit this.
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:
Information reporting unit 71, for sending interference-related information, described interference-related information comprises the positional information of described small base station 70;
Information acquisition unit 72, obtain the information of the Radio Resource that macro base station distributes, described Radio Resource distributes to described small base station 70 by described macro base station based on described interference-related information;
Communication unit 73, provides service for utilizing described Radio Resource for its subscriber equipment.
The small base station 70 of the present embodiment includes but not limited to that Pico, HeNB and Femto are at interior various small base stations, itself and the similar accessible macro base station of terminal, accepting the resource that macro base station distributes, and utilize described resource as the services sites of its subordinate terminal, is Terminal for service.Small base station is by providing self interference-related information to macro base station, and being conducive to 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, is coupled to described information reporting unit 71, for detecting small base station 70 position, and provides the positional information detecting the described small base station 70 obtained to described information reporting unit 71.
Further, described small base station 70 also can comprise: selected cell, for selecting Radio Resource for described small base station 70, and provides the information of selected Radio Resource to macro base station; Correspondingly, information acquisition unit 72 for: obtains macro base station and agree to the confirmation of Radio Resource that small base station 70 is selected, or macro base station is the information of the Radio Resource that small base station 70 is redistributed.
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, for obtaining the interference-related information that small base station provides, described interference-related information comprises the positional information of described small base station;
Resource determining unit 82, for the positional information based on described small base station, Radio Resource service condition within the scope of the interference space determining this small base station;
Resource allocation unit 83, for when there is the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, gives described small base station by described untapped allocation of radio resources;
Notification unit 84, for providing the information of the Radio Resource of distribution to described small base station.
The macro base station 80 of the present embodiment not only can directly for subscriber equipment provides service, also can be the base station of multiple more ting model as services sites, obtain the interference-related information of the multiple small base station of its subordinate, and the distribution of Radio Resource is carried out based on the interference-related information of small base station, reduce the possibility being assigned with same wireless resource between the mutual small base station forming potential interference, reduce the interference between small base station or between small base station and macro base station.
Further, described resource allocation unit 83 also can be used for: when there is not the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, select to disturb minimum Radio Resource to small base station in set of radio resources, give described small base station by selected allocation of radio resources.
Further, described macro base station 80 also can comprise: determining unit, for obtaining the information that small base station is the Radio Resource that self selects, determine that whether the Radio Resource that described small base station is selected is suitable, if the Radio Resource that described small base station is selected is improper, for described small base station redistributes Radio Resource.
The macro base station that the present embodiment provides can carry multiple described small base station, also other terminal equipment can be carried, by receiving the interference-related information of subordinate's small base station, reasonably carry out allocation of radio resources, make between different small base station and there will not be excessive interference between small base station and other type of base station (as other macro base station), avoid 2 websites that may there is 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, a such as OAM (Operation Administration Maintenance, operation management maintain) equipment can comprise described information acquisition unit 81, resource determining unit 82, resource allocation unit 83 and notification unit 84, to realize based on interference-related information as small base station Resources allocation.
A kind of schematic diagram realizing the system of wireless resource scheduling that Fig. 9 provides for the embodiment of the present invention, this system comprises:
At least one small base station 91, for providing interference-related information to OAM equipment 93, described interference-related information comprises the positional information of described small base station 91; Obtain the information of the Radio Resource that OAM equipment 93 distributes, described Radio Resource distributes to described small base station 91 by described OAM equipment 93 based on described interference-related information; Described Radio Resource is utilized to provide service for its subordinate's subscriber equipment.
Macro base station 92, at least one small base station 91 described provides access network service;
Described OAM equipment 93, for obtaining the interference-related information that small base station 91 provides, based on the positional information of described small base station 91, Radio Resource service condition within the scope of the interference space determining this small base station 91; When there is 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 by described untapped allocation of radio resources, and the information of the Radio Resource of distribution is provided to described small base station 91.
Described OAM equipment 93 can obtain necessary information needed for distributing radio resource from macro base station 92 and small base station 91, and completes the inter-related task of allocation of radio resources.This OAM equipment 93 can be connected with wired or wireless with macro base station 92, the information such as resource service condition in the set of radio resources obtaining macro base station 92 and in described set; This OAM equipment 93 can with from the direct obtaining information of small base station 91, also indirectly obtain by macro base station 92, namely after macro base station 92 obtains the information of small base station 91, this information is transmitted to OAM equipment 93, OAM equipment 93 is now only an equipment, can be connected with other network equipment by wired or wireless mode, the present embodiment does not limit concrete implementation method.
In the present embodiment, small base station 91 communicates by small base station gateway 94 with between macro base station 92 or OAM equipment 93, as shown in Figure 9, several small base station 91 can have a small base station gateway 94, by described small base station gateway 94 forwarding data between small base station 91 and macro base station 92 or OAM equipment 93, the present embodiment does not do further restriction to this.
One of ordinary skill in the art will appreciate that all or part of flow process in said method embodiment, instruction related hardware can be carried out by computer program to complete, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The foregoing is only several embodiments of the present invention, those skilled in the art can carry out various change or modification to the present invention according to content disclosed in application documents and not depart from the spirit and scope of the present invention.One of ordinary skill in the art will appreciate that and can be combined with each other the new embodiment of formation when not clashing between described embodiment or between the feature of different embodiment.
Claims (13)
1. a scheduling method for wireless resource, is characterized in that, comprising:
Small base station provides interference-related information to scheduling of resource equipment, and described interference-related information comprises the positional information of described small base station;
The information of the Radio Resource that described small base station Gains resources controlling equipment distributes, described Radio Resource distributes to described small base station by described scheduling of resource equipment based on described interference-related information, or
Described small base station selects Radio Resource for self, and the information of the Radio Resource providing this small base station to select to described scheduling of resource equipment, described small base station obtains the information that described scheduling of resource equipment is the Radio Resource that this small base station is redistributed, or described small base station obtains the confirmation that described scheduling of resource equipment agrees to the Radio Resource that this small base station is selected;
The Radio Resource of the Radio Resource that described small base station utilizes self to select or distribution provides service for subscriber equipment.
2. the method for claim 1, is characterized in that, described scheduling of resource equipment is macro base station and this macro base station is 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; Or
Interference-related information is forwarded to described macro base station by small base station gateway by small base station.
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; Or
Interference-related information is forwarded to described operation management maintain equipment by small base station gateway or macro base station by small base station.
4. the method for claim 1, is characterized in that, also comprises: small base station after powering or after interference being detected, obtains the positional information of small base station by detecting self-position.
5. method as claimed in claim 4, is characterized in that, when small base station detects that the position of this small base station is identical with the front position once reported, the positional information of described small base station is the information confirming invariant position.
6. the method for claim 1, is characterized in that, also comprises in described interference-related information: the bandwidth range that the signal strength information of frequency range within the scope of the capacity of equipment of small base station, the carrier-frequency range of small base station, carrier frequency are corresponding and maximum transmission power.
7. a scheduling method for wireless resource, is characterized in that, comprising:
Obtain the interference-related information that small base station provides, described interference-related information comprises the positional information of described small base station;
Based on the positional information of described small base station, Radio Resource service condition within the scope of the interference space determining this small base station;
When there is the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, described small base station is given by described untapped allocation of radio resources, described macro base station is the donor base station of described small base station, or obtain the information that described small base station is the Radio Resource that this small base station is selected, determine that whether the Radio Resource that described small base station is selected is suitable, the Radio Resource selected when small base station is improper, for this small base station redistributes Radio Resource, the Radio Resource selected when small base station is suitable, generate the confirmation agreeing to the Radio Resource that small base station is selected,
The information of the Radio Resource of distribution is provided to described small base station or sends the confirmation agreeing to the Radio Resource that described small base station is selected.
8. method as claimed in claim 7, is characterized in that, also comprise:
When there is not the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, select to disturb minimum Radio Resource to small base station in described set of radio resources, give described small base station by selected allocation of radio resources.
9. a small base station, is characterized in that, comprising:
Information reporting unit, for providing interference-related information to scheduling of resource equipment, described interference-related information comprises the positional information of described small base station;
Selected cell, for selecting Radio Resource for this small base station, and provides the information of selected Radio Resource to scheduling of resource equipment;
Information acquisition unit, for the information of the Radio Resource that Gains resources controlling equipment distributes, described Radio Resource distributes to described small base station by described scheduling of resource equipment based on described interference-related information, or obtain the confirmation that described scheduling of resource equipment agrees to the Radio Resource that described small base station is selected, or obtain the information that described scheduling of resource equipment is the Radio Resource that described small base station is redistributed;
Communication unit, the Radio Resource distributed for utilizing that described small base station self is selected or described scheduling of resource equipment provides service for subscriber equipment.
10. small base station as claimed in claim 9, is characterized in that, detecting unit, is coupled to described information reporting unit, for detecting small base station position, and provides the positional information detecting the described small base station obtained to described information reporting unit.
11. 1 kinds of scheduling of resource equipment, is characterized in that, comprising:
Information acquisition unit, for obtaining the interference-related information that small base station provides, described interference-related information comprises the positional information of described small base station;
Resource determining unit, for the positional information based on described small base station, Radio Resource service condition within the scope of the interference space determining this small base station;
Resource allocation unit, for when there is 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, gives described small base station by described untapped allocation of radio resources;
Determining unit, for obtaining the information that described small base station is the Radio Resource that this small base station self is selected, and determine that whether the Radio Resource that described small base station is selected is suitable according to the band information of the allocation of carriers situation in the macrocell collected, contiguous small base station use around described small base station and signal strength information corresponding to each contiguous small base station, if the Radio Resource that described small base station is selected is improper, for described small base station redistributes Radio Resource;
Notification unit, for providing the information of the Radio Resource of distribution or sending the confirmation agreeing to the Radio Resource that described small base station is selected to described small base station.
12. scheduling of resource equipment as claimed in claim 11, it is characterized in that, described resource allocation unit also for: when there is not the untapped Radio Resource of interference space scope in the set of radio resources of macro base station, select to disturb minimum Radio Resource to small base station in set of radio resources, give described small base station by selected allocation of radio resources.
13. scheduling of resource equipment according to any one of claim 11 or 12, it is characterized in that, described scheduling of resource equipment is alms giver's macro base station of operation management maintain equipment or described small base station.
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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010134363.6A CN102202404B (en) | 2010-03-23 | 2010-03-23 | Method and equipment for scheduling radio resource |
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| CN102202404A CN102202404A (en) | 2011-09-28 |
| CN102202404B true 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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| CN103379549B (en) * | 2012-04-20 | 2018-09-07 | 北京新岸线移动多媒体技术有限公司 | Data transmission method, system and device in a kind of wireless network |
| CN103974428A (en) * | 2013-01-31 | 2014-08-06 | 中国移动通信集团公司 | Micro cell configuration method, micro cell configuration device and miniature base station |
| WO2014126136A1 (en) | 2013-02-15 | 2014-08-21 | 三菱電機株式会社 | Communication system |
| CN104053241A (en) * | 2013-03-15 | 2014-09-17 | 中兴通讯股份有限公司 | System and method for interference coordination among communication nodes |
| CN103249164B (en) * | 2013-04-08 | 2015-10-28 | 江苏物联网研究发展中心 | A kind of resource regulating method of chain wireless network and base station |
| JP6475821B2 (en) * | 2014-08-28 | 2019-02-27 | テレフオンアクチーボラゲット エルエム エリクソン（パブル） | Communication device and method for enabling interference management of data transmission in a wireless communication network |
| CN105792374A (en) * | 2014-12-25 | 2016-07-20 | 中兴通讯股份有限公司 | Small cell frequency resource allocation method and device |
| CN110300394B (en) * | 2018-03-23 | 2020-12-08 | 浙江汉朔电子科技有限公司 | Resource allocation method, related device, system and storage medium |
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| CN101400070A (en) * | 2008-11-19 | 2009-04-01 | 华为技术有限公司 | Method and apparatus for network planning |
| CN101527963A (en) * | 2008-03-05 | 2009-09-09 | 大唐移动通信设备有限公司 | Method and system for allocating resources to realize inter-cell interference control |
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| KR101216751B1 (en) * | 2006-02-07 | 2012-12-28 | 엘지전자 주식회사 | Method for avoiding collision using identifier in mobile network |
| CN101335971B (en) * | 2007-06-28 | 2011-04-27 | 联想(北京)有限公司 | Resource scheduling method of multi-hop wireless network based on relay station |
| CN101453762B (en) * | 2007-11-30 | 2011-06-01 | 中国移动通信集团公司 | Method for wireless resource scheduling, apparatus and system thereof |
| CN101631351A (en) * | 2008-07-14 | 2010-01-20 | 中兴通讯股份有限公司 | Measurement control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101527963A (en) * | 2008-03-05 | 2009-09-09 | 大唐移动通信设备有限公司 | Method and system for allocating resources to realize inter-cell interference control |
| CN101400070A (en) * | 2008-11-19 | 2009-04-01 | 华为技术有限公司 | Method and apparatus for network planning |
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| CN102202404A (en) | 2011-09-28 |
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