CN102202384B - Method and device for controlling space division interference - Google Patents

Method and device for controlling space division interference Download PDF

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CN102202384B
CN102202384B CN201010132191.9A CN201010132191A CN102202384B CN 102202384 B CN102202384 B CN 102202384B CN 201010132191 A CN201010132191 A CN 201010132191A CN 102202384 B CN102202384 B CN 102202384B
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power
interference
limited
prri
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CN102202384A (en
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吴央
曹艳霞
李向宁
杨哲
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Abstract

The invention discloses a method and device for controlling space division interference in an HSUPA (High Speed Uplink Packet Access) system. The method is characterized by comprising the following steps of: for two terminals to be adopted with space division multiplexing scheduling, respectively obtaining authorized power of an uplink channel of each terminal before and after space division interference limitation is introduced; according to the authorized power of the uplink channel of each terminal before and after the space division interference limitation is introduced, determining whether the space division scheduling has gain relative to individual scheduling; and, if so, adopting the space division multiplexing scheduling for the two terminals to be scheduled. According to the embodiment of the invention, the transmission power of an uplink shared channel of a space division user is limited so as to control uplink space division interference and improve system gain.

Description

A kind of sky divides control method and the device of interference
Technical field
The present invention relates to communication technical field, refer to that especially a kind of indoor HSUPA system hollow divides interference control method and device.
Background technology
In the HSUPA system, by Uplink Shared Channel is carried out to the transmitting power that up channel is controlled in the power mandate.Can obtain by following formula the transmitting power of up channel:
PRRI = , om ( P rx P e - base , UPH )
Wherein, the transmitting power that PRRI is up channel; P rxmean expectation received power, limited the interference of user to other community users, make the power mandate can not cause the interference excessive to other users; P e-basethe interference size received for base station side, UPH is the smaller value of the transmitting power mandate of calculating, such as: UPH is the end lifting of the making an uproar (ROT by by allowing, Rising Over Thermalnoise) and the smaller value of the Lmetric transmitting power mandate of calculating, wherein, Lmetric is for to local area with to the path loss ratio of adjacent area, because UPH is that maximum transmission power by terminal obtains, makes the power mandate can not surpass the upper limit of terminal transmit power.
In prior art, in the Poewr control method of up channel, only for uplink transmission power, the interference power lifting to overall system is limited.In the HSUPA system, by the restriction to user uplink ROT, control the lifting of Uplink Shared Channel to system interference.Along with the introducing of space division multiplexing, the inter-user interference of multiplexing same asset becomes the principal element of restriction space division system gain.Because sky divides the identical code resource of use between the user, the interference size between empty minute user directly has influence on the performance of space division multiplexing.Therefore be necessary to divide to disturb for sky to carry out corresponding power control.
Summary of the invention
The sky the invention provides in a kind of HSUPA system divides interference control method and device, while realizing in order to divide at sky, carries out sky minute and disturbs control.
Sky in a kind of HSUPA system that the embodiment of the present invention provides divides interference control method, comprising:
A. for two terminals of space division multiplexing to be adopted scheduling, obtain respectively the authorization power that each terminal is introduced the up channel before and after empty minute interference-limited, wherein, obtain the authorization power that terminal is introduced the up channel after sky minute interference-limited, comprising:
Obtain the path loss of terminal to each passage, and obtain the received power of this terminal while to sky, dividing that the user is maximum to allow to disturb according to the interference threshold value of setting;
Power and the transmitting power authorization power of the received power of this terminal when utilization divides to sky that the user is maximum to allow to disturb and the end lifting of making an uproar of permission, obtain the authorization power that this terminal is introduced the up channel after empty minute interference-limited;
B. introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, if determine and have gain, two terminals to be scheduled are adopted to the space division multiplexing scheduling, wherein, determine that whether independent scheduling existed gain to this dispatching space division with respect to not empty minute, comprising:
Judge whether to meet following relation, if meet, determine and have gain, otherwise, determine and do not have gain,
tbsize(PRRI 1，SDMA)+tbsize(PRRI 2，SDMA)>max(tbsize(PRRI 1)，tbsize(PRRI 2))
Wherein, tbsize (PRRI 1, SDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited.
Sky in a kind of HSUPA system that the embodiment of the present invention provides divides the interference control device, comprising:
The power acquiring unit, for two terminals for space division multiplexing scheduling to be adopted, obtain respectively each terminal and introduce the authorization power of the up channel of empty minute interference-limited front and back, wherein, obtain terminal and introduce the authorization power of the up channel after empty minute interference-limited, comprise: obtain the path loss of terminal to each passage, and obtain the received power of this terminal while to sky, dividing that the user is maximum to allow to disturb according to the interference threshold value of setting; Power and the transmitting power authorization power of the received power of this terminal when utilization divides to sky that the user is maximum to allow to disturb and the end lifting of making an uproar of permission, obtain the authorization power that this terminal is introduced the up channel after empty minute interference-limited;
Control unit, for introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, if determine and have gain, two terminals to be scheduled are adopted to the space division multiplexing scheduling, wherein, described control unit, for determining that whether independent scheduling existed gain to this dispatching space division with respect to not empty minute, comprising:
Judge whether to meet following relation, if meet, determine and have gain, otherwise, determine and do not have gain,
tbsize(PRRI 1，SDMA)+tbsize(PRRI 2，SDMA)>max(tbsize(PRRI 1)，tbsize(PRRI 2))，
Wherein, tbsize (PRRI 1, SDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited.
In embodiments of the present invention, for two terminals for space division multiplexing scheduling to be adopted, obtain respectively the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back; Introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, have gain if definite, to two terminals to be scheduled, adopt space division multiplexing to dispatch.The embodiment of the present invention is to by dividing the transmitting power of user uplink shared channel to be limited to sky, reach the upper line space of control and divide interference, improve the purpose of system gain, and estimated the system throughput flow gain of empty minute on the basis of controlling at power, guaranteed the air separation of system.
The accompanying drawing explanation
Sky in the HSUPA system that Fig. 1 is the embodiment of the present invention divides the schematic flow sheet of interference control method;
The schematic flow sheet of the method that Fig. 2 is the present invention's one specific embodiment;
Fig. 3 is the path loss schematic diagram that adheres to two users of two passages separately;
Sky in the HSUPA system that Fig. 4 is the embodiment of the present invention divides the structural representation that disturbs control device.Embodiment
In embodiments of the present invention, in order to introduce empty timesharing in the HSUPA system, for two terminals of space division multiplexing scheduling to be adopted, obtain respectively the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back; Introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, have gain if definite, to two terminals to be scheduled, adopt space division multiplexing to dispatch.
Shown in Figure 1, the sky in a kind of HSUPA system of the embodiment of the present invention divides interference control method to comprise the following steps:
Step 101: for two terminals of space division multiplexing scheduling to be adopted, obtain respectively the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back;
In step 101, obtain terminal and introduce the authorization power of the up channel after empty minute interference-limited and can realize like this:
Obtain the path loss of terminal to each passage, and obtain the received power of this terminal while to sky, dividing that the user is maximum to allow to disturb according to the interference threshold value of setting; Power and the transmitting power authorization power of the received power of this terminal when utilization divides to sky that the user is maximum to allow to disturb and the end lifting of making an uproar of permission, obtain the authorization power that this terminal is introduced the up channel after empty minute interference-limited.
Obtaining terminal can realize like this to the path loss of each passage: the up channel of following by first terminal obtains the proportionate relationship of each interchannel path loss to the received power ratio of each passage; Utilize proportionate relationship, Primary Common Control Physical Channel (PCCPCH) transmitting power, the PCCPCH received power of each interchannel path loss, obtain the path loss of each terminal to each passage.
This terminal is introduced the power of the end lifting of making an uproar of received power, permission of this terminal that the authorization power of the up channel after empty minute interference-limited can be when dividing to sky that the user is maximum allows interference and the minimum value in the maximum transmission power authorization power.
The authorization power that this terminal is introduced the up channel before empty minute interference-limited can be the power of the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
Step 102: the authorization power of introducing the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, if determine and have gain, two terminals to be scheduled are adopted to the space division multiplexing scheduling, if determine and do not have gain, jump out this flow process.
In step 102, there do not is gain if definite, can select two terminals as two terminals to be scheduled, execution step A.Also can adopt to the terminal of high priority in two terminals to be scheduled the space division multiplexing scheduling.
In step 102, determine that whether independent scheduling existed gain to this dispatching space division with respect to not empty minute, can realize like this:
Judge whether to meet following relation, if meet, determine and have gain, otherwise, determine and do not have gain,
tbsize(PRRI 1，SDMA)+tbsize(PRRI 2，SDMA)>max(tbsize(PRRI 1)，tbsize(PRRI 2))
Wherein, tbsize (PRRI 1, SDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited.
Determine and have gain, think empty minute and be conducive to total throughput hoisting; Otherwise think the total throughout of dispatching in sky minute mode little with the scheduling alone family throughput.
Shown in Figure 2, the method for the present invention's one specific embodiment comprises the following steps:
Step 201: calculate the path loss of user to each passage.
Shown in Figure 3, U1, U2 belongs to respectively ANT1, and ANT2 that is to say, and in indoor environment, user 1 user 2 is the coverage in antenna 1, antenna 2 respectively.
Known PCCPCH transmitting power PCCPCH tx, user's PCCPCH received power PCCPCH rx.And can, by the up received power of DPCH channel to each passage of following, can obtain the relation of each interchannel path loss: L 11: L 21: ...: L n1.
Specific as follows: empty minute of U1 and U2, the interference that requires the transmitting power of U1 to cause ANT2 is not higher than certain thresholding: maxISCP.
P SDMA=maxISCP*L 21／L 11
L ijfor the path loss of passage i to terminal i.
Wherein, maxISCP can adopt the empty minute power proportions isolation thresholding of expectation received power * of terminal 2.Wherein the expectation received power of terminal 2 can adopt: the expectation received power of the last scheduled of terminal 2; The smooth value of the expectation received power of several times scheduling before terminal 2.
Path loss L wherein 11l 21can calculate in the following way:
Under indoor multichannel environment:
PCCPCH rx = PCCPCH tx / N L 11 + PCCPCH tx / N L 21 + . . . + PCCPCH tx / N L N 1 - - - ( 1 )
Wherein, PCCPCH txfor the PCCPCH channel emission power, N is total number of channels, L n1for the path loss of passage n to UE1.
By the up received power of DPCH channel to each passage of following of U1, can obtain the relation of each interchannel path loss:
L 11∶L 21∶...：L N1(2)
Just formula (2) is brought into formula (1) and can obtains respectively the path loss L of active user to each passage 11, L 21..., L n1.
Step 202: calculate the PRRI that introduces empty minute interference-limited front and back.
To two users of preparation dispatching space division, calculate respectively the PRRI that introduces empty minute interference-limited front and back:
PRRI 1，SDMA=min(P ROT，P UPH，P 1，SDMA)
PRRI 1=min(P ROT，P UPH)
PRRI 2，SDMA=min(P ROT，P UPH，P 2，SDMA)
PRRI 2＝min(P ROT，P UPH)
Wherein, P 1, SDMA=maxISCP*L 21/ L 11;
P 2，SDMA＝maxISCP*L 12／L 22。
Wherein, P rOTpower for the end lifting of making an uproar that allows; P uPHfor the transmitting power authorization power; P 1, SDMAthe received power of the terminal 1 while for causing, to sky, dividing the maximum permission of user to disturb; PRRI 1authorization power for the up channel before the empty minute interference-limited of terminal 1 introducing; PRRI 1, SDMAauthorization power for the up channel after the empty minute interference-limited of terminal 1 introducing; PRRI 2, SDMAauthorization power for the up channel after the empty minute interference-limited of terminal 2 introducing; PRRI 2authorization power for the up channel before the empty minute interference-limited of terminal 2 introducing; P 2, SDMAthe received power of the terminal 2 while for causing, to sky, dividing the maximum permission of user to disturb.
Step 203: carry out space division system gain judgement.
Because the power mandate directly has influence on code check, modulation system, and then have influence on the utilization ratio of resource, therefore need to divide between power authorization limitations could and total throughput hoisting and weigh at sky.
According to sky, divide interference-limited to introduce the comparison of front and back PRRI, judge whether independent scheduling existed gain to this dispatching space division with respect to not empty minute.
PRRI 1, SDMA, PRRI 1, PRRI 2, SDMA, PRRI 2the TB block size that mapping can be carried respectively, tbsize (PRRI 1, SDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited, and make the following judgment:
When meeting tbsize (PRRI 1, SDMA)+tbsize (PRRI 2, SDMA) max (tbsize (PRRI 1), tbsize (PRRI 2)) time, to the active user to adopting dispatching space division;
Otherwise, can only dispatch the user that its medium priority is higher, this method is fairly simple.Perhaps can from the user of other satisfied empty minute conditions, select again one to carry out above-mentioned judgement, until the user who satisfies condition is arranged or traveled through all users, can improve resource utilization so high.
Below lift specific embodiment and describe technical scheme of the present invention in detail.
In the embodiment of the present invention, introduce in power mandate reference factor and disturb one in empty minute, the purpose of disturbing in empty minute to reach restriction.
The PRRI expression formula of upgrading
PRRI = min ( P rx P e - base , UPH , P SDMA P e - base )
Shown in Figure 4, the sky in a kind of HSUPA system of the embodiment of the present invention divides the interference control device, comprising:
Power acquiring unit 41, for two terminals for space division multiplexing scheduling to be adopted, obtain respectively the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back;
Control unit 42, for introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, if determining to exist gains, two terminals to be scheduled are adopted to the space division multiplexing scheduling.
Described power acquiring unit 41, for obtaining terminal to the path loss of each passage, and obtain the received power of this terminal while to sky, dividing that the user is maximum to allow to disturb according to the interference threshold value of setting; Power and the transmitting power authorization power of the received power of this terminal when utilization divides to sky that the user is maximum to allow to disturb and the end lifting of making an uproar of permission, obtain the authorization power that this terminal is introduced the up channel after empty minute interference-limited.
Described power acquiring unit 41, obtain the proportionate relationship of each interchannel path loss for the up channel of following by first terminal to the received power ratio of each passage; Utilize proportionate relationship, PCCPCH channel emission power, the PCCPCH channel received power of each interchannel path loss, obtain the path loss of each terminal to each passage.
The power of the received power that the authorization power of the up channel after the empty minute interference-limited of this terminal introducing is this terminal while to sky, dividing the maximum permission interference of user, the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
The authorization power that this terminal is introduced the up channel before empty minute interference-limited is the power of the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
Described control unit 42, if do not have gain for determining, adopt the space division multiplexing scheduling to the terminal of high priority in two terminals to be scheduled.
Described control unit 42, if do not have gain for determining, select two terminals as two terminals to be scheduled, triggers the power acquiring unit and obtain the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back.
Described control unit 42, for judging whether to meet following relation, if meet, determine and have gain, otherwise, determine and do not have gain,
tbsize(PRRI 1，SDMA)+tbsize(PRRI 2，SDMA)>max(tbsize(PRRI 1)，tbsize(PRRI 2))，
Wherein, tbsize (PRRI 1, SDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited.
In embodiments of the present invention, for two terminals for space division multiplexing scheduling to be adopted, obtain respectively the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back; Introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, have gain if definite, to two terminals to be scheduled, adopt space division multiplexing to dispatch.In the specific implementation process, can be by the up DPCH that follows in each passage received power ratio, computing terminal is to each passage path loss, and the data volume size that before and after dividing by sky, the power mandate can be carried, and carries out sky minute gain judgement.The embodiment of the present invention is to by dividing the transmitting power of user uplink shared channel to be limited to sky, reach the upper line space of control and divide interference, improve the purpose of system gain, and estimated the system throughput flow gain of empty minute on the basis of controlling at power, guaranteed the air separation of system.
Obviously, those skilled in the art can carry out various changes and modification and not break away from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention also is intended to comprise these changes and modification interior.

Claims (12)

1. the sky in a HSUPA system divides interference control method, it is characterized in that, the method comprises the following steps:
A. for two terminals of space division multiplexing to be adopted scheduling, obtain respectively the authorization power that each terminal is introduced the up channel before and after empty minute interference-limited, wherein, obtain the authorization power that terminal is introduced the up channel after sky minute interference-limited, comprising:
Obtain the path loss of terminal to each passage, and obtain the received power of this terminal while to sky, dividing that the user is maximum to allow to disturb according to the interference threshold value of setting;
Power and the transmitting power authorization power of the received power of this terminal when utilization divides to sky that the user is maximum to allow to disturb and the end lifting of making an uproar of permission, obtain the authorization power that this terminal is introduced the up channel after empty minute interference-limited;
B. introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, if determine and have gain, two terminals to be scheduled are adopted to the space division multiplexing scheduling, wherein, determine that whether independent scheduling existed gain to this dispatching space division with respect to not empty minute, comprising:
Judge whether to meet following relation, if meet, determine and have gain, otherwise, determine and do not have gain,
tbsize(PRRI 1，SDMA)+tbsize(PRRI 2，SDMA)>max(tnsize(PRRI 1),tbsize(PRRI 2))，
Wherein, tbsize (PRRI 1, SDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited.
2. method according to claim 1, is characterized in that, obtains the path loss of terminal to each passage, comprising:
The up channel of following by first terminal obtains the proportionate relationship of each interchannel path loss to the received power ratio of each passage;
Utilize proportionate relationship, PCCPCH channel emission power, the PCCPCH channel received power of each interchannel path loss, obtain the path loss of each terminal to each passage.
3. method according to claim 1, it is characterized in that the received power that the authorization power of the up channel after the empty minute interference-limited of this terminal introducing is this terminal while to sky, dividing the maximum permission interference of user, the power of the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
4. method according to claim 1, is characterized in that, the authorization power that this terminal is introduced the up channel before empty minute interference-limited is the power of the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
5. method according to claim 1, is characterized in that, do not have gain if definite, the terminal of high priority in two terminals to be scheduled adopted to the space division multiplexing scheduling.
6. method according to claim 1, is characterized in that, do not have gain if definite,
Select two terminals as two terminals to be scheduled, execution step A.
7. the sky in a HSUPA system divides the interference control device, it is characterized in that, this device comprises:
The power acquiring unit, for two terminals for space division multiplexing scheduling to be adopted, obtain respectively each terminal and introduce the authorization power of the up channel of empty minute interference-limited front and back, wherein, obtain terminal and introduce the authorization power of the up channel after empty minute interference-limited, comprise: obtain the path loss of terminal to each passage, and obtain the received power of this terminal while to sky, dividing that the user is maximum to allow to disturb according to the interference threshold value of setting; Power and the transmitting power authorization power of the received power of this terminal when utilization divides to sky that the user is maximum to allow to disturb and the end lifting of making an uproar of permission, obtain the authorization power that this terminal is introduced the up channel after empty minute interference-limited;
Control unit, for introduce the authorization power of the up channel of empty minute interference-limited front and back according to each terminal, determine whether this dispatching space division exists gain with respect to independent scheduling, if determine and have gain, two terminals to be scheduled are adopted to the space division multiplexing scheduling, wherein, described control unit, for determining that whether independent scheduling existed gain to this dispatching space division with respect to not empty minute, comprising:
Judge whether to meet following relation, if meet, determine and have gain, otherwise, determine and do not have gain,
tbsize(PRRI 1，SDMA)+tbsize(PRRI 2，SDMA)>max(tbsize(PRRI 1)，tbsize(PRRI 2))
Wherein, tbsize (PRRI 1, sDMA) for first terminal, introduce after sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 1) for first terminal, introduce before sky divides interference-limited and shine upon the TB block size that can carry; Tbsize (PRRI 2, SDMA) be to shine upon the TB block size that can carry, tbsize (PRRI after the second terminal is introduced empty minute interference-limited 2) be to shine upon the TB block size that can carry before the second terminal is introduced empty minute interference-limited.
8. device according to claim 7, is characterized in that, described power acquiring unit obtains the proportionate relationship of each interchannel path loss for the up channel of following by first terminal to the received power ratio of each passage; Utilize proportionate relationship, PCCPCH channel emission power, the PCCPCH channel received power of each interchannel path loss, obtain the path loss of each terminal to each passage.
9. device according to claim 7, it is characterized in that the received power that the authorization power of the up channel after the empty minute interference-limited of this terminal introducing is this terminal while to sky, dividing the maximum permission interference of user, the power of the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
10. device according to claim 7, is characterized in that, the authorization power that this terminal is introduced the up channel before empty minute interference-limited is the power of the end lifting of making an uproar of permission and the minimum value in the maximum transmission power authorization power.
11. device according to claim 7, is characterized in that, described control unit, if do not have gain for determining, adopts the space division multiplexing scheduling to the terminal of high priority in two terminals to be scheduled.
12. device according to claim 7, it is characterized in that, described control unit, if do not have gain for determining, select two terminals as two terminals to be scheduled, trigger the power acquiring unit and again obtain the authorization power that each terminal is introduced the up channel of empty minute interference-limited front and back.
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