CN102547723A - Method and device for allocating and scheduling bandwidth for peripheral user equipment of service cell - Google Patents
Method and device for allocating and scheduling bandwidth for peripheral user equipment of service cell Download PDFInfo
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Abstract
The invention aims to provide a method and device for allocating and scheduling bandwidth for peripheral user equipment of a service cell. The method comprises the following steps: acquiring positioning information of a base station and position information of first user equipment by the device; according to the position information of the base station and the first user equipment, determining a service cell of the first user equipment in the base station and an adjacent cell of the first user equipment in an adjacent base station; according to a first service bandwidth of the first user equipment in the service cell, a second service bandwidth of second user equipment in the adjacent cell, as well as the frequency bandwidth of the service cell, determining a first scheduling bandwidth of the first user equipment in the service cell. Compared with the prior art, the method and device provided by the invention enables the peripheral first user equipment of the service cell to maximally acquire the bandwidth of the service cell, realizes the dynamic allocation of the bandwidth of the peripheral first user equipment of the service cell, and simultaneously improves the throughput of the peripheral user equipment of the service cell.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of technology that is used to the allocation schedule bandwidth of the subscriber equipment that is positioned at the Serving cell edge.
Background technology
In cordless communication network, when subscriber equipment was in the edge of Serving cell, its communication quality received the common-channel interference of neighbor cell deeply.
In the prior art, in order to address the above problem, when subscriber equipment was in the edge of Serving cell, Serving cell was this user equipment allocation dedicated frequency band, this dedicated frequency band account for this Serving cell frequency bandwidth 1/3.This dedicated frequency band of 1/3 is different with the frequency band that neighbor cell is assigned to, thereby can not produce common-channel interference.But, obviously, adopting this method, spectrum efficiency is very low, and even without common-channel interference, and the throughput of subscriber equipment that is in the Serving cell edge is also very low.
Summary of the invention
The purpose of this invention is to provide a kind of method and apparatus that is used to the allocation schedule bandwidth of the subscriber equipment that is positioned at the Serving cell edge.
According to an aspect of the present invention, a kind of method that is used to the allocation schedule bandwidth of the subscriber equipment that is positioned at the Serving cell edge is provided, wherein, this method may further comprise the steps:
A obtains the positional information of base station and the positional information of first subscriber equipment;
B is according to the positional information of the said base station and first subscriber equipment, confirms that said first subscriber equipment is at the Serving cell of said base station and at the adjacent cell of neighbor base station;
C according to first subscriber equipment at first service bandwidth of said Serving cell and second subscriber equipment second service bandwidth at said adjacent cell; And the frequency bandwidth of said Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said Serving cell.
According to another aspect of the present invention, a kind of equipment that is used to the allocation schedule bandwidth of the subscriber equipment that is positioned at the Serving cell edge is provided also, wherein, this equipment comprises:
Deriving means is used to obtain the positional information of base station and the positional information of first subscriber equipment;
Confirm device, be used for positional information, confirm that said first subscriber equipment is at the Serving cell of said base station and at the adjacent cell of neighbor base station according to the said base station and first subscriber equipment;
Calculation element; Be used for according to first subscriber equipment at first service bandwidth of said Serving cell and second subscriber equipment second service bandwidth at said adjacent cell; And the frequency bandwidth of said Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said Serving cell.
Compared with prior art; The present invention according to first subscriber equipment at first service bandwidth of Serving cell and second service bandwidth of second subscriber equipment in the adjacent cell; Frequency bandwidth in conjunction with Serving cell; Be this first user equipment allocation, first scheduling bandwidth; Make first subscriber equipment be in the Serving cell edge can obtain the bandwidth of Serving cell to greatest extent, realized the dynamic assignment of bandwidth of first subscriber equipment at Serving cell edge, improved the throughput of the subscriber equipment at Serving cell edge simultaneously.
Description of drawings
Through reading the detailed description of doing with reference to following accompanying drawing that non-limiting example is done, it is more obvious that other features, objects and advantages of the present invention will become:
Fig. 1 illustrates the method flow diagram of allocation schedule bandwidth that is positioned at the subscriber equipment at Serving cell edge according to being used to of one aspect of the invention;
Fig. 2 illustrates the position exemplary plot according to subscriber equipment of one aspect of the invention and base station;
Fig. 3 illustrates the sample calculation figure according to the upward signal incidence angle of subscriber equipment of one aspect of the invention and base station;
Fig. 4 illustrates the sample calculation figure according to the air line distance of subscriber equipment of one aspect of the invention and base station;
Fig. 5 illustrates the sketch map of the equipment of the allocation schedule bandwidth that is used to the subscriber equipment that is positioned at the Serving cell edge according to a further aspect of the present invention.
Same or analogous Reference numeral is represented same or analogous parts in the accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
Fig. 1 is the method flow diagram according to one aspect of the invention, and the process of the allocation schedule bandwidth that is used to the subscriber equipment that is positioned at the Serving cell edge is shown.Particularly, in step S1, base station 1 obtains the positional information of base station 1 and the positional information of first subscriber equipment; In step S2, base station 1 is according to the positional information of the base station 1 and first subscriber equipment, confirm said first subscriber equipment in the base station 1 fringe region and in the adjacent domain of neighbor base station; In step S3; Base station 1 according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.
More specifically, in step S1, base station 1 obtains the positional information of base station 1 and the positional information of first subscriber equipment.Particularly, in step S1, the positional information of base station 1 according to such as network design time the, base station 1, perhaps mode such as GPS is obtained the positional information of base station 1; According to the positional information of calculating this first subscriber equipment such as the air line distance between the base station 1 and first subscriber equipment, perhaps mode such as GPS is obtained the positional information of this first subscriber equipment.For example, when the LTE network design, the positional information of base station 1 confirms that base station 1 obtains its positional information in view of the above, and according to GPS, base station 1 obtains the positional information of first subscriber equipment.At this, network includes but not limited to, LTE network, UMTS network etc.; Those skilled in the art will be understood that above-mentioned network is merely for example; Other networks existing or that possibly occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
In step S2, base station 1 is according to the positional information of the base station 1 and first subscriber equipment, confirm said first subscriber equipment in the base station 1 fringe region and in the adjacent domain of neighbor base station.Particularly; Base station 1 is according to the positional information of its base station that in step S1, obtains 1 and the positional information of first subscriber equipment; Confirm this first subscriber equipment in the base station 1 Serving cell and this first subscriber equipment at the fringe region of this Serving cell; According to the positional information of base station 1 and the positional information of this fringe region, confirm the neighbor base station, this first subscriber equipment of this first subscriber equipment adjacent cell and the adjacent domain of this first subscriber equipment in this adjacent cell at this neighbor base station.For example, as shown in Figure 2, base station 1 is according to the positional information of its positional information and first subscriber equipment; Confirm this first subscriber equipment in the base station 1 Serving cell, promptly the sub-district 1, further; Confirm the fringe region of this first subscriber equipment in this sub-district 1, promptly regional 1_1; According to the positional information of base station 1 and the positional information of regional 1_1, confirm this first subscriber equipment at neighbor base station, promptly the adjacent cell in the base station 3 is sub-district 3, further, the adjacent domain of this first subscriber equipment in sub-district 3 is regional 3_1.
In step S3; Base station 1 according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.Particularly; Base station 1 is according to first service bandwidth of the first subscriber equipment edge region; Second subscriber equipment is at second service bandwidth of adjacent domain, and the frequency bandwidth of this fringe region place Serving cell, confirms first scheduling bandwidth of this first subscriber equipment at this fringe region; Wherein, First service bandwidth refers to that Serving cell is the service bandwidth of this first user equipment allocation; Second service bandwidth refers to that adjacent cell is the service bandwidth of this second user equipment allocation, and frequency bandwidth refers to the width of base station 1 for the whole communication band of this Serving cell distribution.For example, as shown in Figure 2, suppose that centre frequency is 2.6G; Serving cell and adjacent cell are respectively sub-district 1 and sub-district 3, and fringe region is regional 1_1, and adjacent domain is 3_1; First service bandwidth and second service bandwidth are respectively 100k and 400k, and the frequency bandwidth of Serving cell is 10M; According to formula: first scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth; This first subscriber equipment first scheduling bandwidth=[100/ (100+400)] * 10M=2M at this fringe region is confirmed in base station 1; In conjunction with centre frequency, obtaining first subscriber equipment is 2.595GHz-2.597GHz in the scheduling scope of this fringe region; Correspondingly; Suppose that base station 3 is identical for the frequency bandwidth that this Serving cell distributes with base station 1 for the frequency bandwidth that adjacent cell distributes; Be 10M, can also obtain second scheduling bandwidth of second subscriber equipment in adjacent domain 3_1, this second scheduling bandwidth=[400/ (100+400)] * 10M=8M this moment; In conjunction with centre frequency, obtaining this second subscriber equipment is 2.597GHz-2.605GHz in the scheduling scope of this adjacent domain; The frequency bandwidth that distributes for adjacent cell when base station 3 and base station 1 are the frequency bandwidth of this Serving cell distribution when identical; Same frequency between this adjacent cell and this Serving cell disturbs more serious; Therefore, more need solve scheduling bandwidth problem at the subscriber equipment of the fringe region of these two sub-districts.
Preferably, step S1, step S2 and step S3 are constant work.Particularly, in step S1, base station 1 obtains the positional information of base station 1 and the positional information of first subscriber equipment; In step S2, base station 1 is according to the positional information of the base station 1 and first subscriber equipment, confirm said first subscriber equipment in the base station 1 fringe region and in the adjacent domain of neighbor base station; In step S3; Base station 1 according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.At this; It will be understood by those skilled in the art that " continuing " is meant that base station 1 requires to carry out the obtaining of positional information of the base station 1 and first subscriber equipment respectively according to mode of operation that set or adjustment in real time at step S1, step S2 and step S3; Confirming of fringe region and adjacent domain; And the confirming of first scheduling bandwidth of this first subscriber equipment, be not in the fringe region of Serving cell in a long time until this first subscriber equipment.
In a preferred embodiment, in step S1, base station 1 obtains the upward signal incidence angle of said first subscriber equipment and base station 1; Obtain the air line distance between said first subscriber equipment and the base station 1; According to the positional information of base station 1, said upward signal incidence angle and said air line distance, obtain the positional information of said first subscriber equipment.Particularly, in step S1, base station 1 obtains the upward signal incidence angle of this first subscriber equipment and base station 1 according to the angle of arrival-beam shaping (DOA-BF) technology like many antennas; According to like path loss, calculate the air line distance that obtains between this first subscriber equipment and the base station 1; According to positional information, this upward signal incidence angle and this air line distance of base station 1, obtain the positional information of this first subscriber equipment.For example, as shown in Figure 3, suppose that the upward signal incidence angle of first subscriber equipment and base station 1 is designated as A; According to the angle of arrival-beam shaping (DOA-BF) technology of many antennas, A=arcsin (c*t/ (M-1) * d), wherein; C is the light velocity, and t is that upward signal arrives the array element 1 of antenna for base station battle array and the time difference of array element M, and M is the element number of array of antenna array; D is an array element distance, and in view of the above, base station 1 obtains the upward signal incidence angle A of this first subscriber equipment; According to path loss; PathLoss (user)=SRSPower (user)-TxPower (user), wherein, SRSPower (user) is that base station 1 is when receiving the upward signal of first subscriber equipment; The performance number of this upward signal that measure base station 1; TxPower (user) is the transmitting power of the upward signal of this first subscriber equipment, is that this first subscriber equipment is given in base station 1 configuration, then; Base station 1 combines the power radiation pattern of its antenna to obtain the air line distance of base station 1 and this first subscriber equipment, is designated as L; As shown in Figure 4, according to formula: the first subscriber equipment coordinate (x, y)=base station 1 coordinate (u, v)+(L*cosA, L*sinA), base station 1 obtains the positional information of this first subscriber equipment.
Preferably, this process also comprises step S4 (not shown), and in step S4, said first service bandwidth is confirmed according to the resource element that said Serving cell distributes in base station 1; Subsequently, in step S3, base station 1 is according to said first service bandwidth and said second subscriber equipment second service bandwidth at said adjacent cell, and the frequency bandwidth of said Serving cell, confirms said first scheduling bandwidth.Particularly, in step S4, first service bandwidth of first subscriber equipment at this Serving cell confirmed according to the resource element (resource elements) that Serving cell distributes in base station 1; Subsequently, in step S3, base station 1 is according to this first service bandwidth and second subscriber equipment second service bandwidth at adjacent cell, and the frequency bandwidth of this Serving cell, confirms first scheduling bandwidth of this first subscriber equipment.For example, as shown in Figure 2, for the scheduling of resource of each Transmission Time Interval (TTI); The Serving cell of base station 1, the i.e. adjacent cell of sub-district 1 and base station 3; Be sub-district 3, according to preset selective sequential resource element, sub-district 1 is selected resource element from minimum sequence number to highest sequence number respectively; According to sub-district 1 is all resource elements that first subscriber equipment is distributed, and confirms first service bandwidth of this first subscriber equipment, and sub-district 3 is selected resource element from highest sequence number to minimum sequence number; According to sub-district 3 is all resource elements that second subscriber equipment is distributed, and confirms second service bandwidth of this second subscriber equipment; Subsequently, base station 1 is according to this first service bandwidth and this second service bandwidth, and the frequency bandwidth of this Serving cell, confirms first scheduling bandwidth of this first subscriber equipment.
Preferably, this process also comprises step S5 (not shown), and in step S5, base station 1 receives second service bandwidth of said second subscriber equipment of said neighbor base station transmission at said adjacent cell; Subsequently, in step S3, base station 1 is according to said first service bandwidth and said second service bandwidth, and the frequency bandwidth of said Serving cell, confirms said first scheduling bandwidth.Particularly, in step S5, neighbor base station sends second service bandwidth of second subscriber equipment at the adjacent cell of this neighbor base station to base station 1, and correspondingly, base station 1 receives this second service bandwidth; Subsequently, base station 1 is according to first service bandwidth and this second service bandwidth of first subscriber equipment at Serving cell, and the frequency bandwidth of this Serving cell, confirms first scheduling bandwidth of this first subscriber equipment.
More preferably, in step S3, base station 1 confirms that the formula of first scheduling bandwidth is: first scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth.For example, as shown in Figure 2, suppose that centre frequency is 2.6G; Serving cell and adjacent cell are respectively sub-district 1 and sub-district 3, and fringe region is regional 1_1, and adjacent domain is 3_1; First service bandwidth and second service bandwidth are respectively 100k and 400k, and the frequency bandwidth of Serving cell is 10M; According to formula: first scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth; Confirm this first subscriber equipment first scheduling bandwidth=[100/ (100+400)] * 10M=2M at this fringe region; In conjunction with centre frequency, obtaining first subscriber equipment is 2.595GHz-2.597GHz in the scheduling scope of this fringe region; Correspondingly; Suppose that base station 3 is identical for the frequency bandwidth that this Serving cell distributes with base station 1 for the frequency bandwidth that adjacent cell distributes; Be 10M, can also obtain second scheduling bandwidth of second subscriber equipment in adjacent domain 3_1, this second scheduling bandwidth=[400/ (100+400)] * 10M=8M this moment; In conjunction with centre frequency, obtaining this second subscriber equipment is 2.597GHz-2.605GHz in the scheduling scope of this adjacent domain; The frequency bandwidth that distributes for adjacent cell when base station 3 and base station 1 are the frequency bandwidth of this Serving cell distribution when identical; Same frequency between this adjacent cell and this Serving cell disturbs more serious; Therefore, more need solve scheduling bandwidth problem at the subscriber equipment of the fringe region of these two sub-districts.Preferably, when not having second subscriber equipment in this adjacent cell, this first subscriber equipment can take whole frequency bandwidths of Serving cell.
Fig. 5 is an equipment sketch map according to a further aspect of the present invention, and the equipment of the allocation schedule bandwidth that is used to the subscriber equipment that is positioned at the Serving cell edge is shown.Wherein, equipment 1 comprises deriving means 11, confirms device 12 and calculation element 13.Particularly, deriving means 11 obtains the positional information of base station 1 and the positional information of first subscriber equipment; Confirm the positional information of device 12 according to the base station 1 and first subscriber equipment, confirm said first subscriber equipment in the base station 1 fringe region and in the adjacent domain of neighbor base station; Calculation element 13 according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.
More specifically, deriving means 11 obtains the positional information of base station 1 and the positional information of first subscriber equipment.Particularly, the positional information of deriving means 11 base station 1 according to such as network design the time, perhaps mode such as GPS is obtained the positional information of base station 1; According to the positional information of calculating this first subscriber equipment such as the air line distance between the base station 1 and first subscriber equipment, perhaps mode such as GPS is obtained the positional information of this first subscriber equipment.For example, when the LTE network design, the positional information of base station 1 confirms that deriving means 11 obtains its positional information in view of the above, and according to GPS, deriving means 11 obtains the positional information of first subscriber equipment.At this, network includes but not limited to, LTE network, UMTS network etc.; Those skilled in the art will be understood that above-mentioned network is merely for example; Other networks existing or that possibly occur from now on also should be included in the protection range of the present invention, and be contained in this with way of reference as applicable to the present invention.
Confirm the positional information of device 12 according to the base station 1 and first subscriber equipment, confirm said first subscriber equipment in the base station 1 fringe region and in the adjacent domain of neighbor base station.Particularly; Confirm the positional information of the base station 1 that device 12 obtains according to deriving means 11 and the positional information of first subscriber equipment; Confirm this first subscriber equipment in the base station 1 Serving cell and this first subscriber equipment at the fringe region of this Serving cell; According to the positional information of base station 1 and the positional information of this fringe region, confirm the neighbor base station, this first subscriber equipment of this first subscriber equipment adjacent cell and the adjacent domain of this first subscriber equipment in this adjacent cell at this neighbor base station.For example, as shown in Figure 2, confirm that device 12 is according to the positional information of base station 1 and the positional information of first subscriber equipment; Confirm this first subscriber equipment in the base station 1 Serving cell, promptly the sub-district 1, further; Confirm the fringe region of this first subscriber equipment in this sub-district 1, promptly regional 1_1; According to the positional information of base station 1 and the positional information of regional 1_1, confirm this first subscriber equipment at neighbor base station, promptly the adjacent cell in the base station 3 is sub-district 3, further, the adjacent domain of this first subscriber equipment in sub-district 3 is regional 3_1.
Preferably, deriving means 11, confirm that device 12 and calculation element 13 are constant work.Particularly, obtain the positional information of base station 1 and the positional information of first subscriber equipment at deriving means 11; Confirm the positional information of device 12 according to the base station 1 and first subscriber equipment, confirm said first subscriber equipment in the base station 1 fringe region and in the adjacent domain of neighbor base station; Calculation element 13 according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.At this; It will be understood by those skilled in the art that " continuing " is meant deriving means 11, confirms that device 12 and calculation element 13 require to carry out the obtaining of positional information of the base station 1 and first subscriber equipment respectively according to mode of operation that set or adjustment in real time; Confirming of fringe region and adjacent domain; And the confirming of first scheduling bandwidth of this first subscriber equipment, be not in the fringe region of Serving cell in a long time until this first subscriber equipment.
In a preferred embodiment, deriving means 11 obtains the upward signal incidence angle of said first subscriber equipment and base station 1; Obtain the air line distance between said first subscriber equipment and the base station 1; According to the positional information of base station 1, said upward signal incidence angle and said air line distance, obtain the positional information of said first subscriber equipment.Particularly, deriving means 11 obtains the upward signal incidence angle of this first subscriber equipment and base station 1 according to the angle of arrival-beam shaping (DOA-BF) technology like many antennas; According to like path loss, deriving means 11 calculates the air line distance that obtains between these first subscriber equipmenies and the base station 1; According to positional information, this upward signal incidence angle and this air line distance of base station 1, deriving means 11 obtains the positional information of this first subscriber equipment.For example, as shown in Figure 3, suppose that the upward signal incidence angle of first subscriber equipment and base station 1 is designated as A; According to the angle of arrival-beam shaping (DOA-BF) technology of many antennas, A=arcsin (c*t/ (M-1) * d), wherein; C is the light velocity, and t is that upward signal arrives the array element 1 of antenna for base station battle array and the time difference of array element M, and M is the element number of array of antenna array; D is an array element distance, and in view of the above, deriving means 11 obtains the upward signal incidence angle A of this first subscriber equipment; According to path loss; PathLoss (user)=SRSPower (user)-TxPower (user), wherein, SRSPower (user) is that base station 1 is when receiving the upward signal of first subscriber equipment; The performance number of this upward signal that measure base station 1; TxPower (user) is the transmitting power of the upward signal of this first subscriber equipment, is that this first subscriber equipment is given in base station 1 configuration, then; The antenna power pattern of deriving means 11 combination base stations 1 obtains the air line distance of base station 1 and this first subscriber equipment, is designated as L; As shown in Figure 4, according to formula: the first subscriber equipment coordinate (x, y)=base station 1 coordinate (u, v)+(L*cosA, L*sinA), deriving means 11 obtains the positional information of these first subscriber equipmenies.
Preferably, equipment 1 also comprises the distributor (not shown), and this distributor is confirmed said first service bandwidth according to the resource element that said Serving cell distributes; Subsequently, calculation element 13 is according to said first service bandwidth and said second subscriber equipment second service bandwidth at said adjacent cell, and the frequency bandwidth of said Serving cell, confirms said first scheduling bandwidth.Particularly, distributor is confirmed first service bandwidth of first subscriber equipment at this Serving cell according to the resource element (resource elements) that Serving cell distributes; Subsequently, calculation element is according to this first service bandwidth and second subscriber equipment second service bandwidth at adjacent cell, and the frequency bandwidth of this Serving cell, confirms first scheduling bandwidth of this first subscriber equipment.As shown in Figure 2, for the scheduling of resource of each Transmission Time Interval (TTI), the Serving cell of base station 1; Be the adjacent cell of sub-district 1 and base station 3, promptly the sub-district 3; According to preset selective sequential resource element, sub-district 1 is selected resource element from minimum sequence number to highest sequence number, is all resource elements that first subscriber equipment is distributed according to sub-district 1 respectively; Confirm first service bandwidth of this first subscriber equipment; Sub-district 3 is selected resource element from highest sequence number to minimum sequence number, is all resource elements that second subscriber equipment is distributed according to sub-district 3, confirms second service bandwidth of this second subscriber equipment; Subsequently, calculation element 13 is according to this first service bandwidth and this second service bandwidth, and the frequency bandwidth of this Serving cell, confirms first scheduling bandwidth of this first subscriber equipment.
Preferably, equipment 1 also comprises the receiving system (not shown), and this receiving system receives second service bandwidth of said second subscriber equipment of said neighbor base station transmission at said adjacent cell; Subsequently, calculation element 13 is according to said first service bandwidth and said second service bandwidth, and the frequency bandwidth of said Serving cell, confirms said first scheduling bandwidth.Particularly, neighbor base station sends second service bandwidth of second subscriber equipment at the adjacent cell of this neighbor base station to base station 1, and correspondingly, receiving system receives this second service bandwidth; Subsequently, calculation element 13 is according to first service bandwidth and this second service bandwidth of first subscriber equipment at Serving cell, and the frequency bandwidth of this Serving cell, confirms first scheduling bandwidth of this first subscriber equipment.
More preferably, calculation element 13 confirms that the formula of first scheduling bandwidth is: first scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth.For example, as shown in Figure 2, suppose that centre frequency is 2.6G; Serving cell and adjacent cell are respectively sub-district 1 and sub-district 3, and fringe region is regional 1_1, and adjacent domain is 3_1; First service bandwidth and second service bandwidth are respectively 100k and 400k, and the frequency bandwidth of Serving cell is 10M; According to formula: first scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth; Calculation element 13 is confirmed this first subscriber equipment first scheduling bandwidth=[100/ (100+400)] * 10M=2M at this fringe region; In conjunction with centre frequency, obtaining first subscriber equipment is 2.595GHz-2.597GHz in the scheduling scope of this fringe region; Correspondingly; Suppose that base station 3 is identical for the frequency bandwidth that this Serving cell distributes with base station 1 for the frequency bandwidth that adjacent cell distributes; Be 10M, can also obtain second scheduling bandwidth of second subscriber equipment in adjacent domain 3_1, this second scheduling bandwidth=[400/ (100+400)] * 10M=8M this moment; In conjunction with centre frequency, obtaining this second subscriber equipment is 2.597GHz-2.605GHz in the scheduling scope of this adjacent domain; The frequency bandwidth that distributes for adjacent cell when base station 3 and base station 1 are the frequency bandwidth of this Serving cell distribution when identical; Same frequency between this adjacent cell and this Serving cell disturbs more serious; Therefore, more need solve scheduling bandwidth problem at the subscriber equipment of the fringe region of these two sub-districts.Preferably, when not having second subscriber equipment in this adjacent cell, this first subscriber equipment can take whole frequency bandwidths of Serving cell.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned example embodiment, and under the situation that does not deviate from spirit of the present invention or essential characteristic, can realize the present invention with other concrete form.Therefore; No matter from which point; All should regard embodiment as exemplary; And be nonrestrictive, scope of the present invention is limited accompanying claims rather than above-mentioned explanation, therefore is intended to the implication of the equivalents that drops on claim and all changes in the scope are included in the present invention.Should any Reference numeral in the claim be regarded as limit related claim.In addition, obviously other unit or step do not got rid of in " comprising " speech, and odd number is not got rid of plural number.A plurality of unit of stating in system's claim or device also can be realized through software or hardware by a unit or device.The first, the second word such as grade is used for representing title, and does not represent any specific order.
Claims (10)
1. method that is used to the allocation schedule bandwidth of the subscriber equipment that is positioned at the Serving cell edge, wherein, this method may further comprise the steps:
A obtains the positional information of base station and the positional information of first subscriber equipment;
B is according to the positional information of the said base station and first subscriber equipment, confirms that said first subscriber equipment is at the fringe region of said base station and in the adjacent domain of neighbor base station;
C according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.
2. method according to claim 1, wherein, said step a also comprises: the upward signal incidence angle of said first subscriber equipment of-acquisition and said base station;
Air line distance between said first subscriber equipment of-acquisition and the said base station;
-according to the positional information of said base station, said upward signal incidence angle and said air line distance, obtain the positional information of said first subscriber equipment.
3. method according to claim 1 and 2, wherein, this method also comprises:
-according to the resource element that said Serving cell distributes, confirm said first service bandwidth;
Wherein, said step c also comprises:
-according to said first service bandwidth and said second subscriber equipment second service bandwidth in said adjacent domain, and the frequency bandwidth of said Serving cell, confirm said first scheduling bandwidth.
4. according to each described method in the claim 1 to 3, wherein, this method also comprises:
Said second subscriber equipment that the said neighbor base station of-reception sends is at second service bandwidth of said adjacent domain;
Wherein, said step c also comprises:
-according to said first service bandwidth and said second service bandwidth, and the frequency bandwidth of said Serving cell, confirm said first scheduling bandwidth.
5. according to each described method in the claim 1 to 4, wherein, confirm among the said step c that the formula of first scheduling bandwidth is:
First scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth.
6. equipment that is used to the allocation schedule bandwidth of the subscriber equipment that is positioned at the Serving cell edge, wherein, this equipment comprises:
Deriving means is used to obtain the positional information of base station and the positional information of first subscriber equipment;
Confirm device, be used for positional information, confirm that said first subscriber equipment is at the fringe region of said base station and in the adjacent domain of neighbor base station according to the said base station and first subscriber equipment;
Calculation element; Be used for according to said first subscriber equipment at first service bandwidth of said fringe region and second subscriber equipment second service bandwidth in said adjacent domain; And the frequency bandwidth of said fringe region place Serving cell, confirm first scheduling bandwidth of said first subscriber equipment at said fringe region.
7. equipment according to claim 6, wherein, said deriving means also is used for:
The upward signal incidence angle of-acquisition employed subscriber equipment of said first subscriber equipment and said base station;
Air line distance between said first subscriber equipment of-acquisition and the said base station;
-according to the positional information of said base station, said upward signal incidence angle and said air line distance, obtain the positional information of said first subscriber equipment.
8. according to claim 6 or 7 described equipment, wherein, this equipment also comprises:
Distributor is used for the resource element according to said Serving cell distribution, confirms said first service bandwidth;
Wherein, said calculation element also is used for:
-according to said first service bandwidth and said second subscriber equipment second service bandwidth in said adjacent domain, and the frequency bandwidth of said Serving cell, confirm said first scheduling bandwidth.
9. according to each described equipment in the claim 6 to 8, wherein, this equipment also comprises:
Receiving system is used to receive second service bandwidth of said second subscriber equipment of said neighbor base station transmission in said adjacent domain;
Wherein, said calculation element also is used for:
-according to said first service bandwidth and said second service bandwidth, and the frequency bandwidth of said Serving cell, confirm said first scheduling bandwidth.
10. according to each described equipment in the claim 6 to 9, wherein, the formula of confirming first scheduling bandwidth in the said calculation element is:
First scheduling bandwidth=[first service bandwidth/(first service bandwidth+second service bandwidth)] * Serving cell frequency bandwidth.
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| WO2010050899A1 (en) * | 2008-10-28 | 2010-05-06 | Agency For Science, Technology And Research | A method of optimising bandwidth allocation in a wireless communication network |
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