WO2013143386A1 - 异构网络中用户设备的上行功率控制方法和网络设备 - Google Patents

异构网络中用户设备的上行功率控制方法和网络设备 Download PDF

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Publication number
WO2013143386A1
WO2013143386A1 PCT/CN2013/072407 CN2013072407W WO2013143386A1 WO 2013143386 A1 WO2013143386 A1 WO 2013143386A1 CN 2013072407 W CN2013072407 W CN 2013072407W WO 2013143386 A1 WO2013143386 A1 WO 2013143386A1
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WO
WIPO (PCT)
Prior art keywords
uplink power
user equipment
adjustment step
power adjustment
cell edge
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Application number
PCT/CN2013/072407
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English (en)
French (fr)
Inventor
肖登坤
李启明
赵欣
于潇豫
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2013143386A1 publication Critical patent/WO2013143386A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04TPC
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to an uplink power control method and a network device for user equipment in a heterogeneous network.
  • the small cell is deployed on the basis of the macro cell of the cellular network topology (covered by the macro base station).
  • the small cell is composed of various types of Low Power Nodes (LPNs), for example, Remote Radio Header (RRH), Repeater, Repeater, Micro Station, Pico. Overlays such as stations or Femto stations (where Micro stations, Pico stations, and Femto stations are collectively referred to as small stations) provide short-range and small-area coverage, optimizing indoor and hotspot scenes and cell boundaries.
  • LPNs Low Power Nodes
  • RRH Remote Radio Header
  • Repeater Repeater
  • Micro Station Pico.
  • Overlays such as stations or Femto stations (where Micro stations, Pico stations, and Femto stations are collectively referred to as small stations) provide short-range and small-area coverage, optimizing indoor and hotspot scenes and cell boundaries.
  • These low-power nodes are completely under the coverage of the macro cell, forming another layer of topology on the current cellular topology, forming a layered
  • an uplink power control method provided by the prior art is: the base station determines an adjustment step size of the uplink power control according to the quality of the received uplink signal of the user, and adds an adjustment step to the original uplink power. Long means that the uplink power is increased or decreased to control the uplink power of the user.
  • the uplink power will sometimes be adjusted too large. Or too small. When the adjustment range is too large, it will cause interference to other users. If the adjustment range is too small, the quality of the user signal received by the base station is poor.
  • the two UEs are respectively recorded as UE1 and UE2, and communicate using the same physical resource block (PBR), where UE1 is The edge user of the macro cell, UE2 is the terminal of the small cell, and is enhanced by the low power node of the small cell.
  • PBR physical resource block
  • UE1 is The edge user of the macro cell
  • UE2 is the terminal of the small cell, and is enhanced by the low power node of the small cell.
  • the signal of the macro base station Since the UE1 is an edge user far away from the macro base station, if the uplink power of the UE1 is adjusted too large in order to improve the quality of the received signal, for example, according to the basic adjustment step of 4 dB, the UE1 may be adjusted.
  • the uplink power will cause great interference to the uplink reception of UE2.
  • the embodiments of the present invention provide an uplink power control method and a network device for a user equipment in a heterogeneous network, so as to reduce interference of other user equipments in the heterogeneous network when adjusting the uplink power of a user equipment in the heterogeneous network.
  • An embodiment of the present invention provides an uplink power control method for a user equipment in a heterogeneous network, where the method includes: receiving information of a cell edge user equipment UE1; and calculating the cell edge user according to information of the cell edge user equipment UE1
  • the uplink power adjustment step/c of the device UE1 is compared; the uplink power adjustment step/c is compared with the uplink power adjustment step/c-1 of the previous frame, if the uplink power adjustment step/c
  • the uplink power adjustment step ⁇ : /c is sent to the cell edge user equipment UE1, which is not greater than the uplink power adjustment step/c - 1 corresponding to the previous frame.
  • An embodiment of the present invention provides a network device in a heterogeneous network, where the network device includes: a receiving module, configured to receive information of a cell edge user equipment UE1; and a calculating module, configured to use, according to information of the cell edge user equipment UE1, Calculating an uplink power adjustment step (i) of the cell edge user equipment UE1; comparing the uplink power adjustment step/c(i) with an uplink power adjustment step (i-l) corresponding to the previous frame; The uplink power adjustment step ⁇ /c ( i ) is not greater than the uplink power adjustment step/c corresponding to the previous frame if the calculation module compares to send the uplink power adjustment step ⁇ /c to The cell edge user equipment UE1.
  • the uplink power adjustment step is calculated according to the information of the cell edge user equipment
  • the uplink power phase of the cell edge user equipment is adjusted according to the basic adjustment step size specified in the protocol.
  • the method and the network device provided by the embodiments of the present invention can effectively reduce the interference of uplink receiving of other user equipments in the heterogeneous network, while improving the uplink received signal quality of the cell edge user equipment in the heterogeneous network.
  • Figure la is a schematic flowchart of an uplink power control method for user equipment in a heterogeneous network according to an embodiment of the present invention
  • FIG. 1b is a schematic flowchart of an uplink power control method of a user equipment in a heterogeneous network according to another embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a method for controlling uplink power of a user equipment in a heterogeneous network according to another embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a network device according to another embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a method for controlling uplink power of a user equipment in a heterogeneous network according to an embodiment of the present disclosure, which mainly includes steps S101, S102, and S103.
  • S101 Receive information of a cell edge user equipment UE1.
  • the information of the cell edge user equipment UE1 may include: The location coordinates of the UE1, the transmit power currently used by the cell edge user equipment UE1, the uplink path loss of the cell edge user equipment UE1 to the serving base station, and the uplink path loss to the base station around the RRMS, and the physical used by the cell edge user equipment UE1
  • the resource quality Physical Resource Block, PRB
  • PRB Physical Resource Block
  • the serving base station in the embodiment of the present invention is a base station serving a cell edge user equipment, and mainly sends service data to the user equipment, and the base station around the radio resource management server is a secondary base station, and provides some auxiliary information to the RRMS, for example, this embodiment.
  • the uplink power adjustment step size is calculated according to the information of the cell edge user equipment, and the uplink power adjustment step size sent to the cell edge user equipment is not greater than the uplink power adjustment step corresponding to the previous frame. Therefore, the uplink power control method of the user equipment in the heterogeneous network provided by the embodiment of the present invention is improved in the heterogeneous network, compared with the existing uplink adjustment power of the cell edge user equipment according to the basic adjustment step size specified in the protocol. When the cell edge user equipment receives the signal quality, the interference of other user equipments in the heterogeneous network can be effectively reduced.
  • Radio Resource Management Server (RRMS), as shown in FIG. 1b, is a schematic diagram of an example of the above embodiment of the present invention, which mainly includes steps S'101, S'102 and S'103:
  • S'101 Receive information of a cell edge user equipment UE1 sent by a base station around the radio resource management server.
  • the base stations around the radio resource management server described in the embodiments of the present invention may be one or more.
  • the information of the cell edge user equipment UE1 may be triggered by an event. Transmitted to the RRMS by the base station around the RRMS. It is easy to understand that the event may be any event, which is not limited by the embodiment of the present invention. For example, if the reference signal received by the base station around the RRMS is below a certain threshold, the cell edge user is sent to the RRMS. Information of the device UE1; The information of the cell edge user equipment UE1 may also be sent by the base station around the RRMS to the RRMS according to a certain period.
  • the information of the cell edge user equipment UE1 includes: the location coordinates of the cell edge user equipment UE1, the transmit power currently used by the cell edge user equipment UE1, the uplink path loss of the cell edge user equipment UE1 to the serving base station, and the uplink path to the base station around the RRMS.
  • PRB physical resource block
  • the uplink power adjustment step of the device ⁇ / c may calculate the uplink power adjustment step of the cell edge user equipment UE1 according to the information of the cell edge user equipment UE1 using the following formula (1) and formula (2): Or calculating the uplink power adjustment step size /c of the cell edge user equipment UE1 using the following formula (1) and formula (3):
  • a TF .() is the coding compensation parameter
  • PUSCH (- puscH ) is the basic step size corresponding to the -PUSCH frame
  • / c (0 is the cell edge user equipment
  • the uplink power adjustment step size that is, the parameter to be calculated. It should be noted that the formula (1) and the formula (2) or the formula (1) and the formula (3) can be arbitrarily selected in the embodiment of the present invention.
  • the cell edge user equipment UE1 adjusts the step according to the uplink power. After the uplink power is adjusted, the adjusted uplink power does not interfere with other user equipments at the cell edge (for example, user equipment UE2), and the RRMS can directly send the uplink power adjustment step/c(i) to the RRMS.
  • the surrounding base stations The base station around the RRMS is received on After the line power adjustment step ⁇ / c ), it is sent to the cell edge user equipment UE1, and the cell edge user equipment UE1 adjusts its uplink power according to the uplink power adjustment step size /c).
  • the "EDGE USER PRO WER UPDATE" message of the RRMS table 2 below sends the uplink power adjustment step/c(i) to the base station:
  • the uplink power adjustment step (i) calculated according to the information of the cell edge user equipment UE1 is compared with the uplink power adjustment step ⁇ :/c-1 corresponding to the previous frame, fe d) is greater than /c - 1)
  • the adjusted uplink power may cause interference to other user equipments at the cell edge (for example, user equipment UE2), and the RRMS should not be uplinked.
  • the power adjustment step/c) is sent to the base station, and the uplink power should be recalculated according to formula (1) and formula (2) or formula (1) and formula (3) and the latest received information of the cell edge user equipment UE1. Adjust step ⁇ / 'c ).
  • the RRMS may send the uplink power adjustment step ⁇ / 'c (i) to the radio resource.
  • the base station around the management server receives the uplink power adjustment step ⁇ / 'c (i), and then sends it to the cell edge user equipment UE1, and the cell edge user equipment UE1 adjusts the step according to the uplink power.
  • /'c (i) Adjust its upstream power.
  • the uplink power adjustment step (i) calculated according to the information of the cell edge user equipment UE1 is greater than the uplink power adjustment step corresponding to the previous frame ( ⁇ : /c - 1 ), recalculate and obtain the uplink power adjustment step ⁇ / 'c )
  • Another embodiment of transmitting the uplink power adjustment step ⁇ / 'c (i) to the cell edge user equipment UE1 may be: the radio resource management server according to formula (1) and formula (2) or formula ( 1) and formula (3) recalculating to obtain the uplink power adjustment step/'c ⁇ , further determining: if the uplink power of the cell edge user equipment UE1 is adjusted according to the recalculated uplink power adjustment step ⁇ / 'c), Uplink power shadow of the adjusted cell edge user equipment UE1 Responding to other user equipment (eg, user equipment UE2) at the edge of the cell and/or the total throughput of the cell, then
  • the RRC server may recalculate to obtain an uplink power adjustment step size /, c ( ) that maximizes system throughput. For example, the RRC server may calculate and obtain the method based on the system throughput maximum.
  • the uplink power adjustment step/'c) is sent to the base station around the radio resource management server; the base station around the radio resource management server receives the uplink power adjustment step ⁇ / 'c After (i), it is sent to the cell edge user equipment UE1, and the cell edge user equipment UE1 adjusts its uplink power according to the uplink power adjustment step/'c U ).
  • the execution body may also be a base station around the RRMS in the heterogeneous network, as shown in FIG. 2, which is an uplink power control method flow of the user equipment in the heterogeneous network provided by another embodiment of the present invention.
  • the schematic diagram mainly includes steps S201, S202 and S203:
  • the information of the cell edge user equipment UE1 is the same as that of the cell edge user equipment UE1 as exemplified in the foregoing drawings la and lb, and is not described herein. Different from the foregoing Figure lb, in the present embodiment, the information of the cell edge user equipment UE1 is sent by the cell edge user equipment UE1 to the base station around the RRMS instead of being sent to the RRMS by the base station around the RRMS.
  • the information of the cell edge user equipment may be added to the X2 interface "RESOURCE STATUS UPDATE" message by the base station of the cell edge user equipment, and then transmitted to the base station around the RRMS through the X2 interface, "
  • the resource status update message is shown in Table 3 below:
  • the uplink power adjustment step size /c of the cell edge user equipment UE1 may be calculated according to the information of the cell edge user equipment UE1 by using the following formula (1) and formula (2), or using the following formula (1) And formula (3) calculates an uplink power adjustment step ⁇ /c ( i ) of the cell edge user equipment UE1:
  • a TF is coded compensation parameters, PUSCH.
  • (- PUSCH) are the (i- KPUSCH) step substantially corresponding to the frame length, f c ⁇ cell edge user equipment
  • the uplink power adjustment step size is also a parameter that needs to be calculated.
  • S203 Compare the uplink power adjustment step/c) with an uplink power adjustment step/ c -1 corresponding to the previous frame, if the uplink power adjustment step/c) is not greater than the corresponding one of the previous frame.
  • the uplink power adjustment step ⁇ : /c - 1 ), the uplink power adjustment step ⁇ : / c ) is sent to the cell edge user equipment UE1, so that the cell edge user equipment UE1 adjusts the step according to the uplink power Length / c ) Adjust the uplink power.
  • the cell edge user equipment UE1 adjusts the step according to the uplink power. After the uplink power is adjusted, the adjusted uplink power does not interfere with other user equipments at the cell edge (for example, user equipment UE2), and the base station around the RRMS can send the uplink power adjustment step/c(i). To the cell edge user equipment UE1, the cell edge user equipment UE1 adjusts its uplink power according to the uplink power adjustment step/c).
  • the uplink power adjustment step ⁇ :/c (i) calculated according to formula (1) and formula (2) or formula (1) and formula (3) is not greater than the previous frame corresponding
  • the uplink power adjustment step size / c - 1 ) indicates that the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step ⁇ :/c), and the adjusted uplink power does not affect other user equipments at the cell edge (for example, The user equipment UE2) causes interference, and the base station around the RRMS can directly transmit the uplink power adjustment step/c(i) to the cell edge user equipment UE1.
  • the cell edge user equipment UE1 After receiving the uplink power adjustment step ⁇ /c ), the cell edge user equipment UE1 adjusts its uplink power according to the uplink power adjustment step ⁇ /c ). If the base station around the RRMS according to the information of the cell edge user equipment UE1, the uplink power adjustment step ⁇ :/c) calculated according to formula (1) and formula (2) or formula (1) and formula (3) and the previous frame If the corresponding uplink power adjustment step ⁇ :/c - 1) is compared, if fi ( i) is greater than /c - 1), it indicates that the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step/c (i). The adjusted uplink power may cause interference to other user equipments at the cell edge (for example, user equipment UE2). The base station around the RRMS should not send the uplink power adjustment step/c (i) to the cell edge user equipment UE1. The uplink power adjustment step/'c) is obtained by recalculating according to formula (1) and formula (2) or formula
  • the base station around the RRMS may send the uplink power adjustment step/'c(i) to the cell edge user equipment UE1.
  • the cell edge user equipment UE1 adjusts according to the uplink power. ⁇ adjusts its uplink power.
  • the uplink power adjustment step ⁇ fi (i) calculated according to the information of the cell edge user equipment UE1 is greater than the uplink power adjustment step ⁇ :/c - 1 corresponding to the previous frame, recalculate and obtain the uplink power adjustment step ⁇ / ' c)
  • another embodiment of transmitting the uplink power adjustment step ⁇ / 'c (i) to the cell edge user equipment UE1 may be: the base station around the RRMS according to formula (1) and formula (2) or Equation (1) and formula (3) are recalculated to obtain an uplink power adjustment step/'c), and further judged: if the cell edge user equipment UE1 is adjusted according to the recalculated uplink power adjustment step ⁇ / 'c (i) Uplink power, the uplink power of the adjusted cell edge user equipment UE1 affects the cell side
  • the base station around the RRMS should not send the recalculated uplink power adjustment step ⁇ / 'c ) to the cell edge user equipment UE1 because of the other user
  • the base station around the RRMS may recalculate to obtain the uplink power adjustment step size/c) that maximizes the system throughput.
  • the base station around the RRMS may calculate the uplink based on the method with the largest system throughput.
  • the power adjustment step ⁇ /, c ), the uplink power adjustment step ⁇ / 'c ( i ) is sent to the cell edge user equipment UE1; the cell edge user equipment UE1 receives the uplink power adjustment step / 'c) After that, adjust the uplink power according to the uplink power adjustment step/'c).
  • FIG. 3 it is a schematic structural diagram of a network device according to an embodiment of the present invention. For the convenience of description, only parts related to the embodiment of the present invention are shown.
  • the network device illustrated in FIG. 3 may be an uplink power control device corresponding to a user equipment in a heterogeneous network implementing the methods illustrated in FIG. 1a, FIG. 1b and FIG. 2, and may include a receiving module 301, a computing module 302, and a transmitting module. 303, where:
  • the receiving module 301 is configured to receive information of the cell edge user equipment UE1.
  • the information of the cell edge user equipment UE1 includes: the location coordinates of the cell edge user equipment UE1, the transmit power currently used by the cell edge user equipment UE1, the uplink path loss of the cell edge user equipment UE1 to the serving base station and the base station to the RRMS, and the cell edge.
  • PRB physical resource block
  • the calculation module 302 is configured to calculate an uplink power adjustment step/c of the cell edge user equipment UE1 according to the information of the cell edge user equipment UE1; compare the uplink power adjustment step size fc(i) with the previous one
  • the uplink power adjustment step corresponding to the frame is /c - 1 ).
  • the sending module 303 is configured to: if the uplink power adjustment step/c(i) compared by the calculating module 302 is not greater than the uplink power adjustment step/c corresponding to the previous frame, the uplink power adjustment step /c ( ⁇ ) is sent to the cell edge user equipment UE1.
  • each functional module is only an example, and the actual application may be implemented according to requirements, such as corresponding hardware configuration requirements or software implementation. Convenient consideration, and the above function assignment is completed by different functional modules, that is, the internal structure of the network device is divided into different functional modules to complete the above description. All or part of the functions described. Moreover, in practical applications, the corresponding functional modules in this embodiment may be implemented by corresponding hardware, or may be performed by corresponding hardware to execute corresponding software. For example, the foregoing receiving module may be configured to perform the foregoing receiving by the cell.
  • the hardware of the information of the edge user equipment UE1, such as a receiver, may also be a general processor or other hardware device capable of executing a corresponding computer program to perform the foregoing functions; and the foregoing computing module may be configured to perform the foregoing according to the cell.
  • the information of the edge user equipment UE1 is calculated, and the uplink power adjustment step/c of the cell edge user equipment UE1 is calculated; and the uplink power adjustment step/c (i) is compared with the uplink power adjustment step size corresponding to the previous frame/ c - 1 ), if the uplink power adjustment step/c) is not greater than the uplink power adjustment step ⁇ /c - 1 corresponding to the previous frame, hardware indicating the function of the sending module, such as a calculator, may also be A general processor or other hardware device capable of executing a corresponding computer program to perform the aforementioned functions (each provided in this specification Example principles described above can be applied).
  • the calculating module 302 may calculate, according to the information of the cell edge user equipment UE1, the uplink power adjustment step of the cell edge user equipment UE1 by using the following formula (1) and formula (2). ⁇ : /c ), or calculate the uplink power adjustment step size /c (i) of the cell edge user equipment UE1 using the following formula (1) and formula (3):
  • ⁇ ⁇ ⁇ ⁇ ⁇ () is the physical uplink shared channel transmission power of the i-th frame in cell c
  • ⁇ £ ( 0 is the maximum transmit power of the user equipment in the i-th frame of cell c
  • () is a parameter related to traffic
  • - PUS (3 ⁇ 4 C/) is a parameter related to cell c, which is an uplink path loss from the cell edge user equipment to the serving base station and to the base station around the RRMS, A TF .
  • () is the encoding compensation parameter
  • (_ ⁇ PUSCH ) is the basic step size corresponding to the frame
  • fc (i) is the uplink power adjustment step size of the cell edge user equipment, that is, the parameter to be calculated.
  • the receiving module 301 of the example of FIG. 3 is further configured to re-receive information of the cell edge user equipment UE1, and the calculating module 302 is further configured to: according to the information of the cell edge user equipment UE1 re-received by the receiving module 301, Calculating the obtained uplink power adjustment step size / 'c ), and sending the uplink power adjustment step size / 'c ( i ) to the sending module, where the sending module 303 recalculates the obtained location
  • the uplink power adjustment step / 'c ) is sent to the cell edge user equipment UE1.
  • the network device illustrated in FIG. 3 may be a radio resource management server (RRMS) in a heterogeneous network
  • the receiving module 301 includes a first receiving unit 401
  • the sending module 303 may include a first sending unit 402, such as The uplink power control device of the user equipment in the heterogeneous network provided by another embodiment of the present invention shown in FIG. 4, wherein:
  • the first receiving unit 401 is configured to receive information of the cell edge user equipment UE1 sent by the base station around the radio resource management server.
  • the first sending unit 402 is configured to: if the uplink power adjustment step ⁇ :/c) is not greater than the uplink power adjustment step ⁇ :/c - 1 corresponding to the previous frame, adjust the uplink power step:: c) transmitting to the base station around the radio resource management server, so that the base station around the radio resource management server sends the uplink power adjustment step::/c) to the cell edge user equipment UE1.
  • the calculation module 302 calculates the uplink power adjustment step::/c) according to the information of the cell edge user equipment UE1 received by the first receiving unit 401, it is not greater than the uplink corresponding to the previous frame.
  • the power adjustment step size /c - 1 ) indicates that the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step ⁇ :/c), and the adjusted uplink power does not affect other user equipments at the cell edge (for example, the user equipment) UE2) causes interference, and the first transmitting unit 402 can directly send the uplink power adjustment step/c(i) to the base station around the RRMS.
  • the base station around the RRMS After receiving the uplink power adjustment step ⁇ / c ), the base station around the RRMS sends the uplink power adjustment step ( / c ) to the cell edge user equipment UE1 , and the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step / c ).
  • the calculation module 302 may also include a first adjustment unit 501 and a second transmission unit 502, as shown in another embodiment of the present invention as shown in FIG. Network equipment, where:
  • the first adjusting unit 501 is configured to recalculate according to the information of the re-received cell edge user equipment UE1, if the uplink power adjustment step/c) is greater than the uplink power adjustment step/c-1 of the previous frame. Obtain the uplink power adjustment step/'c), and recalculate to obtain the uplink power adjustment step ⁇ / 'C ⁇ );
  • the second sending unit 502 is configured to: if the uplink power of the cell edge user equipment UE1 is adjusted according to the uplink power adjustment step / /c), the uplink power of the adjusted cell edge user equipment UE1 does not affect the cell edge user.
  • the uplink power adjustment step ⁇ / 'c ) is sent to the sending module 303 by the sending module 303, and the uplink power adjustment step/' c ( i ) is sent by the sending module 303. And transmitting to the base station around the RRMS, so that the base station around the RRMS sends the uplink power adjustment step ⁇ / 'c ) to the cell edge user equipment UE1.
  • the calculation module 302 calculates the uplink power adjustment step/c (i) according to the information of the cell edge user equipment UE1, the uplink power adjustment step/c corresponding to the previous frame. 1) For comparison, ⁇ (i) is greater than /c, indicating that the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step ⁇ :/c), and the adjusted uplink power may be to other user equipments at the cell edge (for example, The user equipment UE2) causes interference, and the uplink power adjustment step/c( ⁇ ) should not be sent to the base station.
  • the first adjustment unit 501 should follow formula (1) and formula (2) or formula (1) and formula (3).
  • the second sending unit 502 After the recalculation obtains the uplink power adjustment step/'c (i, the first adjustment unit 501 recalculates and obtains the uplink power adjustment step ⁇ / 'c ), the second sending unit 502 further determines: if the uplink power is recalculated according to the recalculation After the adjustment step ⁇ / 'c (i) adjusts the uplink power of the cell edge user equipment UE1, the uplink power of the adjusted cell edge user equipment UE1 does not affect other user equipments at the cell edge (for example, The second sending unit 502 may send the uplink power adjustment step/c(/) to the sending module 303, and the sending module 303 adjusts the uplink power.
  • the base station around the radio resource management server After receiving the uplink power adjustment step ⁇ / 'c ), the base station around the radio resource management server sends it to the cell edge user equipment UE1, the cell edge user equipment UE1 Adjust the uplink power according to the uplink power adjustment step/'c (i).
  • its calculation module 302 may also include a second adjustment unit 601, a third adjustment unit 602, and a third transmission unit 603, as shown in FIG.
  • a network device according to another embodiment of the present invention, wherein:
  • the second adjusting unit 601 is configured to: if it is determined that the uplink power adjustment step ⁇ /c ( ⁇ ) is greater than the uplink power adjustment step ⁇ /c _ 1 corresponding to the previous frame, recalculate to obtain an uplink power adjustment step? c)
  • the third adjusting unit 602 is configured to: after adjusting the uplink power of the cell edge user equipment UE1 according to the uplink power adjustment step y? c ), the uplink power of the cell edge user equipment UE1 affects the cell edge user equipment UE2 and / or the total throughput of the cell, then recalculated to obtain the uplink power adjustment step that maximizes system throughput);
  • the third sending unit 603 is configured to send the uplink power adjustment step ⁇ /, c) to the sending module 303, and send, by the sending module 303, the uplink power adjustment step/'c) to the RRMS.
  • a base station such that the base station around the RRMS sends the uplink power adjustment step/'c) to the cell edge user equipment UE1.
  • the network device illustrated in FIG. 3 may be a base station around the RRMS in the heterogeneous network, the receiving module 301 includes a second receiving unit 701, and the sending module 303 includes a fourth sending unit 702.
  • the second receiving unit 701 is configured to receive information about the cell edge user equipment UE1 sent by the cell edge user equipment UE1.
  • the fourth sending unit 702 is configured to: if the uplink power adjustment step/c) is not greater than the uplink power adjustment step corresponding to the previous frame: /c - 1 ), adjust the uplink power step:: c) transmitting to the cell edge user equipment UE1, so that the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step ⁇ : /c ( i ).
  • the uplink power adjustment step ( / c ) calculated by the calculation module 302 according to the information of the cell edge user equipment UE1 is not greater than the uplink power adjustment step/c - 1 corresponding to the previous frame.
  • the adjusted uplink power does not interfere with other user equipments (for example, user equipment UE2) at the cell edge, and the fourth sending unit 702
  • the uplink power adjustment step/c(i) may be sent to the cell edge user equipment UE1, and the cell edge user equipment UE1 adjusts its uplink power according to the uplink power adjustment step/c).
  • its calculation module 302 may also include a fourth adjustment unit 801 and a fifth transmission unit 802, as shown in FIG.
  • the fourth adjusting unit 801 is configured to: if the uplink power adjustment step ⁇ : /c (i) is greater than the uplink power adjustment step ⁇ /c - 1 corresponding to the previous frame, recalculate to obtain the uplink power adjustment step ⁇
  • the fifth sending unit 802 is configured to: after the uplink power of the cell edge user equipment UE1 is adjusted according to the uplink power adjustment step ⁇ , c), the uplink of the adjusted cell edge user equipment UE1 If the power does not affect the cell edge user equipment UE2 and/or the total throughput of the cell, the uplink power adjustment step/c is sent to the sending module 303, and the sending module 303 adjusts the uplink power.
  • the step/c is sent to the cell edge user equipment UE1, so that the cell edge user equipment UE1 adjusts the uplink power according to the uplink power adjustment step/'c).
  • the calculation module 302 calculates the uplink power adjustment step according to the formula (1) and the formula (2) or the formula (1) and the formula (3) according to the information of the cell edge user equipment UE1. If the length /c (i) is compared with the uplink power adjustment step/c - 1 corresponding to the previous frame, and fc ( i ) is greater than /c - 1 ), it indicates that the cell edge user equipment UE1 adjusts according to the uplink power. c ( i ) After adjusting the uplink power, the adjusted uplink power may cause interference to other user equipments at the cell edge (for example, user equipment UE2), and the uplink power adjustment step ⁇ :/c) should not be sent to the cell edge user equipment.
  • fourth adjustment unit 801 should recalculate according to formula (1) and formula (2) or formula (1) and formula (3) to obtain uplink power adjustment step ⁇ /, c).
  • the fifth sending unit 802 further determines: if the uplink power of the cell edge user equipment UE1 is adjusted according to the uplink power adjustment step size / 'c U After that, the uplink power of the adjusted cell edge user equipment UE 1 does not affect other user equipments of the cell edge (for example, user equipment UE2) and/or the total throughput of the cell, and the fifth sending unit 802 can adjust the uplink power.
  • /c (i) is sent to the sending module 303, and the sending module 303 sends the uplink power adjustment step/'c) to the cell edge user equipment UE1; the cell edge user equipment UE1 receives the uplink power adjustment After the step/'c), adjust the uplink power according to the uplink power adjustment step/'c).
  • the calculation module 302 may further include a fifth adjustment unit 901, a sixth adjustment unit 902, and a sixth transmission unit 903, such as FIG. 9 is a network device according to another embodiment of the present invention, wherein:
  • the fifth adjusting unit 901 is configured to: if the uplink power adjustment step/c) is greater than the uplink power adjustment step corresponding to the previous frame: /c, recalculate to obtain an uplink power adjustment step ?c);
  • the sixth adjusting unit 902 is configured to: after adjusting the uplink power of the cell edge user equipment UE1 according to the uplink power adjustment step y? c ), the uplink power of the adjusted cell edge user equipment UE1 affects the cell edge user equipment.
  • the total throughput of UE2 and/or the cell is recalculated to obtain the uplink power adjustment step size /, c) that maximizes system throughput;
  • a sixth sending unit 903 configured to send the uplink power adjustment step ⁇ /, c) to the sending module 303, where the sending module 303 sends the uplink power adjusting step ⁇ / 'c ) to the
  • the cell edge user equipment UE1 is configured to adjust the uplink power according to the uplink power adjustment step ⁇ / 'c ( i ).
  • the uplink power adjustment step/c) Comparing the uplink power adjustment step/c) with the uplink power adjustment step/c-1 in the previous frame, if the uplink power adjustment step/c) is not greater than the uplink power corresponding to the previous frame.
  • the adjustment step ⁇ : /c _ 1 ), the uplink power adjustment step ⁇ : / c ) is sent to the cell edge user equipment UE1.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Read Only Memory (ROM), Random Access Memory (RAM), disk or optical disk.
  • ROM Read Only Memory
  • RAM Random Access Memory
  • optical disk any suitable medium for storing data.
  • the foregoing description is directed to the method and the method for controlling the uplink power of the user equipment in the heterogeneous network provided by the embodiment of the present invention.
  • the description of the foregoing embodiment is only used to help understand the method and core idea of the present invention. Meanwhile, the general technology in the field In the following, the description of the present invention is not limited to the scope of the present invention.

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Abstract

本发明提供异构网络中用户设备的上行功率控制方法和网络设备,以在调整异构网络中某个用户设备的上行功率时减少对该异构网络中其他用户设备的干扰。所述方法包括:接收小区边缘用户设备的信息;根据小区边缘用户设备的信息,计算小区边缘用户设备的上行功率调整步长fc(i);比较上行功率调整步长fc(i)与前一帧对应的上行功率调整步长fc(i-1),如果上行功率调整步长fc(i)不大于前一帧对应的上行功率调整步长fc(i-1),将上行功率调整步长fc(i)发送至小区边缘用户设备。本发明实施例提供的方法在提高异构网络中小区边缘用户设备上行接收信号质量的同时,可以有效地减少对其他用户设备上行接收的干扰。

Description

异构网络中用户设备的上行功率控制方法和网络设备 本申请要求于 2012 年 3 月 20 日提交中国专利局、 申请号为 201210090418.7、 发明名称为"异构网络中用户设备的上行功率控制方法和网 络设备 "的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及无线通信领域,尤其涉及异构网络中用户设备的上行功率控制 方法和网络设备。
背景技术
在蜂窝网络拓朴的宏小区(由宏基站覆盖)基础上部署小小区。 小小区由 各种类型的低功率节点(Low Power Node, LPN ) ,例如,远端射频头(Remote Radio Header, RRH ) 、 中继器 (Relay ) 、 信号增强器 (Repeater ) 、 Micro 站、 Pico站或 Femto站(其中, Micro站、 Pico站和 Femto站统称为小站 )等覆盖, 实现短距离小面积的覆盖,对室内和热点场景以及小区边界进行优化。 这些低 功率节点完全处在宏小区的覆盖之下, 在现在蜂窝拓朴之上形成另一层的拓 朴, 构成了分层的异构网络 ( Heterogeneous Network ) 。
在异构网络环境中, 用户的干扰变得复杂。 作为一种抑制干扰的手段, 现 有技术提供的一种上行功率控制方法是:基站按照接收到的用户上行信号的质 量来确定上行功率控制的调整步长,在原有上行功率上增加一个调整步长, 意 味着上行功率增大或减小, 从而控制用户的上行功率。
由于协议中规定的基本调整步长只有- ldB、 ldB、 - 4dB和 4dB等几种颗 粒度, 若只是按照协议中规定的基本调整步长来控制上行功率,有时会将上行 功率调整得过大或过小。 当调整幅度过大, 将会造成对其他用户的干扰, 若调 整幅度过小, 基站接收到的该用户信号的质量又较差。 例如, 假设异构网络中 的两个用户设备(User Equipment, UE ) , 该两个 UE分别记为 UEl和 UE2 , 使 用相同的物理资源块 (Physical Resource Block, PBR)进行通信, 其中, UEl是 宏小区的边缘用户, UE2是小小区的终端, 通过小小区的低功率节点增强来自 宏基站的信号。 由于 UE1是离宏基站较远的边缘用户, 因此, 若为了提高接收 信号的质量而将 UE1的上行功率调整过大, 例如, 按照 4dB的基本调整步长来 调整, 则可能会造成 UE1调整后的上行功率会对 UE2的上行接收造成很大的 干扰。
发明内容
本发明实施例提供异构网络中用户设备的上行功率控制方法和网络设备, 以在调整异构网络中某个用户设备的上行功率时减少对该异构网络中其他用 户设备的干扰。
本发明实施例提供一种异构网络中用户设备的上行功率控制方法,所述方 法包括: 接收小区边缘用户设备 UE1的信息; 根据所述小区边缘用户设备 UE1 的信息, 计算所述小区边缘用户设备 UE1的上行功率调整步长 /c ); 比较所 述上行功率调整步长 /c )与前一帧对应的上行功率调整步长 /c - 1 ), 如果 所述上行功率调整步长 /c )不大于所述前一帧对应的上行功率调整步长 /c - 1 ), 将所述上行功率调整步^:/c )发送至所述小区边缘用户设备 UE1。
本发明实施例提供一种异构网络中网络设备, 所述网络设备包括: 接收模 块, 用于接收小区边缘用户设备 UE1的信息; 计算模块, 用于根据所述小区边 缘用户设备 UE1的信息, 计算所述小区边缘用户设备 UE1的上行功率调整步长 ( i ); 比较所述上行功率调整步长 /c ( i )与前一帧对应的上行功率调整步长 ( i - l ); 发送模块, 用于如果所述计算模块比较的所述上行功率调整步^ /c ( i ) 不大于所述前一帧对应的上行功率调整步长 /c 将所述上行功率 调整步^ /c 发送至所述小区边缘用户设备 UE1。
从上述本发明实施例可知,由于上行功率调整步长是根据小区边缘用户设 备的信息计算获得, 因此, 与现有的按照协议中规定的基本调整步长来调整小 区边缘用户设备的上行功率相比,本发明实施例提供的方法和网络设备在提高 异构网络中小区边缘用户设备上行接收信号质量的同时,可以有效地减少对该 异构网络中其他用户设备上行接收的干扰。 附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对现有技术或实施例 描述中所需要使用的附图作简单地介绍,显而易见地, 下面描述中的附图仅仅 是本发明的一些实施例,对于本领域技术人员来讲,还可以如这些附图获得其 他的附图。
图 la是本发明实施例提供的异构网络中用户设备的上行功率控制方法流 程示意图;
图 lb是本发明另一实施例提供的异构网络中用户设备的上行功率控制方 法流程示意图;
图 2是本发明另一实施例提供的异构网络中用户设备的上行功率控制方法 流程示意图;
图 3是本发明实施例提供的网络设备结构示意图;
图 4是本发明另一实施例提供的网络设备结构示意图;
图 5是本发明另一实施例提供的网络设备结构示意图;
图 6是本发明另一实施例提供的网络设备结构示意图;
图 7是本发明另一实施例提供的网络设备结构示意图;
图 8是本发明另一实施例提供的网络设备结构示意图;
图 9是本发明另一实施例提供的网络设备结构示意图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清 楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是 全部的实施例。基于本发明中的实施例, 本领域技术人员所获得的所有其他实 施例, 都属于本发明保护的范围。
请参阅附图 la,是本发明实施例提供的异构网络中用户设备的上行功率控 制方法流程示意图, 主要包括步骤 S101、 S102和 S103。
S101 , 接收小区边缘用户设备 UE1的信息。
在本实施例中, 小区边缘用户设备 UE1的信息可以包括: 小区边缘用户设 备 UEl的位置坐标、 小区边缘用户设备 UEl当前所使用的发射功率、 小区边缘 用户设备 UE1到服务基站的上行路径损耗和到 RRMS周围的基站的上行路径损 耗、 小区边缘用户设备 UE1所使用的物理资源块 (Physical Resource Block , PRB)、小区边缘用户设备 UEl所使用业务的服务质量和小区边缘用户设备 UE1 在上行所遭受的干扰等等。
本发明实施例中的服务基站是为小区边缘用户设备服务的基站,主要为用 户设备发送业务数据, 而无线资源管理服务器周围的基站是辅助基站, 向 RRMS提供一些辅助信息, 譬如, 本实施例中提到的用户设备的上述信息。
5102, 根据所述小区边缘用户设备 UE1的信息, 计算所述小区边缘用户设 备 UE1的本帧的上行功率调整步长 /c U )。
5103 , 比较所述本帧的上行功率调整步长 /c )与前一帧对应的上行功率 调整步长/ c - 1 ), 如果所述上行功率调整步长 /c )不大于所述前一帧对应 的上行功率调整步^:/c - 1 ), 将所述上行功率调整步^:/c )发送至所述小 区边缘用户设备 UE1。
由于上行功率调整步长是根据小区边缘用户设备的信息计算获得,发送到 小区边缘用户设备的上行功率调整步长也是不大于前一帧对应的上行功率调 整步长。 因此, 与现有的按照协议中规定的基本调整步长来调整小区边缘用户 设备的上行功率相比,本发明实施例提供的异构网络中用户设备的上行功率控 制方法在提高异构网络中小区边缘用户设备上行接收信号质量的同时,可以有 效地减少对该异构网络中其他用户设备上行接收的干扰。 器( Radio Resource Management Server, RRMS ), 如附图 lb所示, 是本发明上 述实施例的一种示例的示意图, 主要包括步骤 S'101、 S'102和 S'103:
S'101 , 接收由无线资源管理服务器周围的基站发送的小区边缘用户设备 UE1的信息。
需要说明的是,本发明实施例中所述的无线资源管理服务器周围的基站可 以是一个或多个。
在本发明实施例中, 小区边缘用户设备 UE1的信息, 可以是在事件触发下 由 RRMS周围的基站向 RRMS发送。 容易理解的, 该事件可以是任意事件, 本 发明实施例对此并不限制, 例如, 如果 RRMS周围的基站接收到的参考信号发 射功率低于某个门限值, 则向 RRMS发送小区边缘用户设备 UE1的信息; 小区 边缘用户设备 UE1的信息也可以是由 RRMS周围的基站向 RRMS按照某个周期 发送。小区边缘用户设备 UE1的信息包括: 小区边缘用户设备 UE1的位置坐标、 小区边缘用户设备 UE1当前所使用的发射功率 、 小区边缘用户设备 UE1到服 务基站的上行路径损耗和到 RRMS周围基站的上行路径损耗、 小区边缘用户设 备 UE1所使用的物理资源块 (Physical Resource Block, PRB)、 小区边缘用户设 备 UE1所使用业务的服务质量和小区边缘用户设备 UE1在上行所遭受的干扰 等等。 这些信息通过下述表 1示例的消息发送:
UE1 m Location Trans PL ldl m, … PRB1 m BERl m, 11 m
(xl_m, Power PL_ldj, Min Rate yl_m) Pl m Ri m
UE2 m Location Trans PL_2d_m, -PL_2dj, PRB2 m BER2_m, 12 m
(x2_m, Power Min Rate y2-m) P2_m R2_m
UEi m Location Trans PL id m, -PL idj, PRBi m BERi m, Ii m
(xi_m, Power Min Rate yi_m) Pi rn Ri m
设备的上行功率调整步^ /c )。 在本发明实施例中, RRMS可以根据所述小区边缘用户设备 UE1的信息, 使用下述公式( 1 )和公式(2)计算所述小区边缘用户设备 UE1的上行功率调 整步^:/c ), 或者使用下述公式(1 )和公式(3)计算所述小区边缘用户设 备 UE1的上行功率调整步长 /c ):
p _ min ί101°8ΐ0
Figure imgf000008_0001
- HCO) , } 公式( 1 );
U) + ac (j) + PLc + ATFc () + fc () fc (') = fc (' "!) + ^PUSCH,c (' - ^PUSCH ) 公式
(2);
fc ( = ^PUSCH,c j - ^PUSCH ) 公 式(3); 上述公式( 1 )至公式( 3 ) 中, ρρυ Ηε()是在小区 c 第 i 帧物理上行共享 信道发送功率, ^£(0是在小区 c 第 i 帧用户设备的最大发送功率,
Figure imgf000008_0002
是第 i 帧物理上行控制信道的发送功率,MPUSCH。()是要发送的数据块, 是和业 务量有关的动态参数, 《 )和/^1;„(_/)是和小区。有关的静态参数, 是小 区边缘用户设备到服务基站的上行路径损耗和到 RRMS的周围基站的上行路 径损耗, ATF。()是编码补偿参数, PUSCH。(— puscH)是第 - PUSCH) 帧对应的 基本步长; /c(0是小区边缘用户设备的上行功率调整步长, 也就是需要计算的 参量。 需要说明的是, 本发明实施例中可以任意选择使用公式(1 )和公式(2) 或者使用公式(1 )和公式(3)。
S'103, 如果所述上行功率调整步长 /c ) 不大于所述前一帧对应的上行 功率调整步^:/c - 1 ), 将所述上行功率调整步^:/c )发送至所述无线资源 管理服务器周围的基站,以使所述无线资源管理服务器周围的基站将所述上行 功率调整步^ /c ( i )发送至所述小区边缘用户设备 UE1。
若根据小区边缘用户设备 UE 1的信息计算出来的上行功率调整步 ( i ) 不大于前一帧对应的上行功率调整步长 /c - 1 ), 则表明小区边缘用户设备 UE1按照上行功率调整步长 /c U )调整上行功率后, 调整后的上行功率不会对 小区边缘其他用户设备(例如, 用户设备 UE2)造成干扰, RRMS可以直接将 上行功率调整步长/ c ( i )发送至 RRMS周围的基站。 RRMS周围的基站收到上 行功率调整步^ /c )后, 再将其发送至小区边缘用户设备 UEl, 小区边缘用 户设备 UE1按照上行功率调整步长 /c )调整其上行功率。
在本发明实施例中, RRMS以下表 2示例的 "小区边缘用户功率更新( EDGE USER PRO WER UPDATE)" 消息将上行功率调整步长 /c ( i)发送至基站:
Figure imgf000009_0002
Figure imgf000009_0001
若根据小区边缘用户设备 UE 1的信息计算出来的上行功率调整步 ( i ) 与前一帧对应的上行功率调整步^:/c - 1)进行比较, fe d)大于 /c - 1), 则表明小区边缘用户设备 UEl按照上行功率调整步长 /c U)调整上行功率后, 调整后的上行功率可能会对小区边缘其他用户设备(例如, 用户设备 UE2)造 成干扰, RRMS不应该将上行功率调整步长 /c )发送至基站, 而应该按照公 式( 1 )和公式( 2 )或者公式( 1 )和公式( 3 )以及最新接收到的小区边缘用 户设备 UE1的信息重新计算获得上行功率调整步^/ 'c )。
重新计算获得上行功率调整步长 /'c )后, 进一步判断: 若按照所述重 新计算获得的上行功率调整步^/ 'c ( i)调整小区边缘用户设备 UEl的上行功 率后,调整后的小区边缘用户设备 UE1的上行功率不影响小区边缘其他用户设 备(例如, 用户设备 UE2)和 /或小区总的吞吐量, 则 RRMS可以将上行功率调 整步^ /'c (i)发送至无线资源管理服务器周围的基站; 无线资源管理服务器 周围的基站收到上行功率调整步^ /'c (i)后, 再将其发送至小区边缘用户设 备 UE1, 小区边缘用户设备 UE1按照上行功率调整步长 /'c ( i)调整其上行功 率。
作为如果根据小区边缘用户设备 UE1的信息计算出来的上行功率调整步 (i)大于前一帧对应的上行功率调整步^:/c - 1 ), 重新计算获取上行功 率调整步^/ 'c ), 将所述上行功率调整步^/ 'c (i)发送至所述小区边缘用 户设备 UE1的另一实施例, 可以是: 无线资源管理服务器按照公式( 1 )和公 式(2)或者公式(1)和公式(3) 重新计算获得上行功率调整步长 /'c ω, 进一步判断: 若按照所述重新计算获得的上行功率调整步^/ 'c )调整小区 边缘用户设备 UE1的上行功率, 调整后的小区边缘用户设备 UE1的上行功率影 响小区边缘其他用户设备(例如, 用户设备 UE2 )和 /或小区总的吞吐量, 则
RRMS不宜将重新计算获得的上行功率调整步^ /'c )发送至基站。 在本发 明实施例中,无线资源管理服务器可以重新计算以获取使得系统吞吐量最大的 上行功率调整步长 /,c ( ), 例如, 无线资源管理服务器可以以基于系统吞吐量 最大的方法计算获取上行功率调整步长 /'c ),再将所述上行功率调整步^ /'c )发送至无线资源管理服务器周围的基站; 无线资源管理服务器周围的基 站收到上行功率调整步^/ 'c ( i )后, 再将其发送至小区边缘用户设备 UE1 , 小区边缘用户设备 UE1按照上行功率调整步长 /'c U )调整其上行功率。
对于附图 la的示例, 其执行主体也可以是异构网络中 RRMS周围的基站, 如附图 2所示, 是本发明另一实施例提供的异构网络中用户设备的上行功率控 制方法流程示意图,, 主要包括步骤 S201、 S202和 S203:
S201 , 接收由小区边缘用户设备 UE1发送的所述小区边缘用户设备 UE1的 信息。
小区边缘用户设备 UE1的信息与前述附图 la和附图 lb示例的小区边缘用 户设备 UE1的信息相同, 不做赘述。 与前述附图 lb不同的是, 在本实施例中, 小区边缘用户设备 UE1的信息是由小区边缘用户设备 UE1发送至 RRMS周围的 基站, 而不是由 RRMS周围的基站发送至 RRMS。
在本实施例中,小区边缘用户设备的信息可以由该小区边缘用户设备的基 站增加到 X2接口 "资源状态更新 ( RESOURCE STATUS UPDATE )" 消息中, 然后通过 X2接口传递至 RRMS周围的基站, "资源状态更新"消息如下表 3所示:
IE/Group Name Presence Range IE type and Semantics Critical ity Assigned reference description Critical ity
Message Type M 9.2.13 YES ignore eNB1 M INTEGER Allocated by YES reject
Measurement ID (1 ..4095,... ) eNBi
eNB2 M INTEGER Allocated by YES reject
Measurement ID (1 ..4095,... ) eNB2
Cell 1 YES ignore
Measurement
Result
>Cell 1 .. EACH ignore
Measurement <maxCeiiineNB>
Result Item
»Cell ID M ECGI
9.2.14
»Hardware 〇 9.2.34
Load
Indicator
»S1 TNL 〇 9.2.35
Load
Indicator
»Radio 〇 9.2.37
Resource
Status
»Composit 〇 9.2.44 YES ignore e Available
Capacity
Group »ABS 〇 9.2.58 YES ignore Status
Edge USER O/M 9.2.60 YES ignore Infor
表 3
上述表 3中最后一行是增加的小区边缘用户设备信息 (Edge USER Infor ), 具体如下述表 4所示:
Figure imgf000012_0001
表 4
S202, 根据小区边缘用户设备 UEl的信息计算所述小区边缘用户设备 UE1 的上行功率调整步^:/c )。
在本实施例中, RRMS周围的基站在收到小区边缘用户设备 UE1的信息后, 可以根据所述小区边缘用户设备 UE1的信息, 使用下述公式(1 )和公式(2) 计算所述小区边缘用户设备 UE1的上行功率调整步长 /c ), 或者使用下述公 式( 1 )和公式( 3 )计算所述小区边缘用户设备 UE1的上行功率调整步^ /c ( i ):
- H ')) , I 公式( 1 );
Figure imgf000013_0001
)) + o — PUSCH'c U) + ac (j) + PLc + ATFc () + fc ()
fc (') = fc (' "!) + ^PUSCH,c (' - ^PUSCH ) 公式
(2);
fc ( = ^PUSCH,c j - ^PUSCH ) 公 式(3); 上述公式( 1 )至公式( 3 ) 中, ρρυ Ηε()是在小区 c 第 i 帧物理上行共享 信道发送功率, ^£(0是在小区 c 第 i 帧用户设备的最大发送功率,
Figure imgf000013_0002
是第 i 帧物理上行控制信道的发送功率,MPUSCH。()是要发送的数据块, 是和业 务量有关的动态参数, 《 )和/^1;„(_/)是和小区。有关的静态参数, 是小 区边缘用户设备到服务基站的上行路径损耗和到 RRMS的周围基站的上行路 径损耗, ATF。()是编码补偿参数, PUSCH。(— PUSCH)是第 (i- KPUSCH) 帧对 应的基本步长, fc ω是小区边缘用户设备的上行功率调整步长, 也是需要计 算的参量。
S203, 比较所述上行功率调整步长 /c )与前一帧对应的上行功率调整步 长 /c - 1 ), 如果所述上行功率调整步长 /c )不大于所述前一帧对应的上行 功率调整步^:/c - 1 ), 将所述上行功率调整步^:/c )发送至所述小区边缘 用户设备 UE1, 以使所述小区边缘用户设备 UE1根据所述上行功率调整步长 /c )调整上行功率。
若根据小区边缘用户设备 UE 1的信息计算出来的上行功率调整步 ( i ) 不大于前一帧对应的上行功率调整步长 /c - 1 ), 则表明小区边缘用户设备 UE1按照上行功率调整步长 /c U )调整上行功率后, 调整后的上行功率不会对 小区边缘其他用户设备(例如, 用户设备 UE2)造成干扰, RRMS周围的基站 可以将上行功率调整步长 /c ( i )发送至小区边缘用户设备 UE1, 小区边缘用户 设备 UE1按照上行功率调整步长 /c )调整其上行功率。
1 若根据小区边缘用户设备 UEl的信息, 按照公式(1)和公式(2)或者公 式(1 )和公式(3)计算出来的上行功率调整步^:/c (i)不大于前一帧对应的 上行功率调整步长/ c - 1 ), 则表明小区边缘用户设备 UE1按照上行功率调整 步^:/c )调整上行功率后, 调整后的上行功率不会对小区边缘其他用户设备 (例如, 用户设备 UE2)造成干扰, RRMS周围的基站可以直接将上行功率调 整步长 /c ( i )发送至小区边缘用户设备 UE1。 小区边缘用户设备 UE1收到上行 功率调整步^ /c )后, 按照上行功率调整步^ /c )调整其上行功率。 若 RRMS周围的基站根据小区边缘用户设备 UE1的信息,按照公式( 1 )和公式( 2 ) 或者公式( 1 )和公式(3 )计算出来的上行功率调整步^:/c )与前一帧对应 的上行功率调整步^:/c - 1)相比较, fi ( i) 大于 /c - 1), 则表明小区边 缘用户设备 UEl按照上行功率调整步长 /c (i)调整上行功率后, 调整后的上行 功率可能会对小区边缘其他用户设备(例如,用户设备 UE2)造成干扰, RRMS 周围的基站不应该将上行功率调整步长 /c (i)发送至小区边缘用户设备 UEl, 而应该按照公式( 1 )和公式( 2 )或者公式( 1 )和公式( 3 )重新计算获得上 行功率调整步长 /'c )。
重新计算获得上行功率调整步长 /'c )后, 进一步判断: 若按照所述上 行功率调整步长 /'c )调整小区边缘用户设备 UE1的上行功率后, 调整后的 小区边缘用户设备 UE1的上行功率不影响小区边缘其他用户设备(例如, 用户 设备 UE2)和 /或小区总的吞吐量, 则 RRMS周围的基站可以将上行功率调整步 长/' c ( i)发送至小区边缘用户设备 UEl; 小区边缘用户设备 UEl收到上行功 率调整步^/ 'c )后, 按照上行功率调
Figure imgf000014_0001
ω调整其上行功率。
作为如果根据小区边缘用户设备 UE1的信息计算出来的上行功率调整步 ^fi (i)大于前一帧对应的上行功率调整步^:/c - 1 ), 重新计算获取上行功 率调整步^/ 'c ), 将所述上行功率调整步^/ 'c (i)发送至所述小区边缘用 户设备 UE1的另一实施例,可以是: RRMS周围的基站按照公式(1)和公式(2) 或者公式( 1 )和公式(3 )重新计算获得上行功率调整步长 /'c ), 进一步判 断: 若按照所述重新计算获得的上行功率调整步^/ 'c (i)调整小区边缘用户 设备 UE1的上行功率, 调整后的小区边缘用户设备 UE1的上行功率影响小区边 缘其他用户设备(例如, 用户设备 UE2 )和 /或小区总的吞吐量, 则 RRMS周围 的基站不宜将重新计算获得的上行功率调整步^ /'c )发送至小区边缘用户 设备 UE1。 在本发明实施例中, RRMS周围的基站可以重新计算以获取使得系 统吞吐量最大的上行功率调整步长 /,c ), 例如, RRMS周围的基站可以以基 于系统吞吐量最大的方法计算获取上行功率调整步^ /,c ), 再将所述上行功 率调整步^/ 'c ( i )发送至所述小区边缘用户设备 UE1; 小区边缘用户设备 UE1 收到上行功率调整步长 /'c )后, 按照上行功率调整步长 /'c )调整其上行 功率。
请参阅附图 3 , 是本发明实施例提供的网络设备结构示意图。 为了便于说 明, 仅仅示出了与本发明实施例相关的部分。 附图 3示例的网络设备可以是对 应实现附图 la、 附图 lb和附图 2示例的方法的异构网络中用户设备的上行功率 控制装置, 可以包括接收模块 301、 计算模块 302和发送模块 303 , 其中:
接收模块 301 , 用于接收小区边缘用户设备 UE1的信息。
小区边缘用户设备 UE1的信息包括: 小区边缘用户设备 UE1的位置坐标、 小区边缘用户设备 UE1当前所使用的发射功率 、 小区边缘用户设备 UE1到服 务基站和到 RRMS周围基站的上行路径损耗、 小区边缘用户设备 UE1所使用的 物理资源块 (Physical Resource Block, PRB)、 小区边缘用户设备 UE1所使用业 务的服务质量和小区边缘用户设备 UE1在上行所遭受的干扰等等。
计算模块 302, 用于根据所述小区边缘用户设备 UE1的信息, 计算所述小 区边缘用户设备 UE1的上行功率调整步长 /c ); 比较所述上行功率调整步长 fc ( i )与前一帧对应的上行功率调整步长 /c - 1 )。
发送模块 303 , 用于如果所述计算模块 302比较的所述上行功率调整步长 /c ( i ) 不大于所述前一帧对应的上行功率调整步长 /c 将所述上行功率 调整步^ /c ( ί )发送至所述小区边缘用户设备 UE1。
需要说明的是,以上异构网络中用户设备的上行功率控制装置的实施方式 中, 各功能模块的划分仅是举例说明, 实际应用中可以根据需要, 例如相应硬 件的配置要求或者软件的实现的便利考虑,而将上述功能分配由不同的功能模 块完成, 即将所述网络设备的内部结构划分成不同的功能模块, 以完成以上描 述的全部或者部分功能。 而且, 实际应用中, 本实施例中的相应的功能模块可 以是由相应的硬件实现, 也可以由相应的硬件执行相应的软件完成, 例如, 前 述的接收模块,可以是具有执行前述接收由小区边缘用户设备 UE1的信息的硬 件, 例如接收器,也可以是能够执行相应计算机程序从而完成前述功能的一般 处理器或者其他硬件设备; 再如前述的计算模块, 可以是具有执行前述根据所 述小区边缘用户设备 UE1的信息, 计算所述小区边缘用户设备 UE1的上行功率 调整步长/ c ); 比较所述上行功率调整步长 /c ( i) 与前一帧对应的上行功率 调整步长/ c - 1 ), 如果所述上行功率调整步长 /c )不大于所述前一帧对应 的上行功率调整步^ /c - 1 ), 指示发送模块功能的硬件, 例如计算器, 也可 以是能够执行相应计算机程序从而完成前述功能的一般处理器或者其他硬件 设备(本说明书提供的各个实施例都可应用上述描述原则 )。
在附图 3示例的网络设备中,计算模块 302可以根据所述小区边缘用户设备 UE1的信息, 使用下述公式(1 )和公式(2)计算所述小区边缘用户设备 UE1 的上行功率调整步^:/c ), 或者使用下述公式(1 )和公式(3 )计算所述小 区边缘用户设备 UE1的上行功率调整步长 /c (i):
p _ min ί
Figure imgf000016_0001
- HCO) , } 公式( 1 );
U) + ac (j) + PLc + ATFc () + fc () fc (') = fc (' "!) + ^PUSCH,c (' - ^PUSCH ) 公式
(2);
fc ( = ^PUSCH,c j - ^PUSCH ) 公 式(3); 上述公式( 1 )至公式( 3 ) 中, ρρυ Ηε()是在小区 c 第 i 帧物理上行共享 信道发送功率, ^£(0是在小区 c 第 i 帧用户设备的最大发送功率,
Figure imgf000016_0002
是第 i 帧物理上行控制信道的发送功率, MPUSCH。()是和业务量有关的参数, 和 — PUS(¾C/)是和小区 c有关的参数, 是小区边缘用户设备到服务基站 和到 RRMS周围基站的上行路径损耗, ATF。()是编码补偿参数, PUSCH。(_^PUSCH) 是第 帧对应的基本步长, fc (i)是小区边缘用户设备的上行功 率调整步长, 也就是需要计算的参量。
1 如果所述上行功率调整步长 /C ) 大于前一帧对应的上行功率调整步长
/c - 1 ), 附图 3示例的接收模块 301还用于重新接收小区边缘用户设备 UE1 的信息,计算模块 302还用于,根据接收模块 301重新接收的小区边缘用户设 备 UE1的信息, 重新计算获取上行功率调整步长/ 'c ), 将所述上行功率调 整步长/ 'c ( i )发送至所述发送模块, 由所述发送模块 303将所述计算模块 302 重新计算获取的所述上行功率调整步长/ 'c )发送至所述小区边缘用户设备 UE1。
附图 3示例的网络设备可以是异构网络中的无线资源管理服务器 ( Radio Resource Management Server, RRMS ), 其接收模块 301包括第一接收单 401 , 发送模块 303可以包括第一发送单元 402 , 如附图 4所示的本发明另一实施例提 供的异构网络中用户设备的上行功率控制装置, 其中:
第一接收单 401 , 用于接收由所述无线资源管理服务器周围的基站发送的 小区边缘用户设备 UE1的信息。
第一发送单元 402, 用于若所述上行功率调整步^:/c ) 不大于前一帧对 应的上行功率调整步^:/c - 1 ), 则将所述上行功率调整步^:/c )发送至所 述无线资源管理服务器周围的基站,以使所述无线资源管理服务器周围的基站 将所述上行功率调整步^:/c )发送至所述小区边缘用户设备 UEl。
在附图 4示例的网络设备中, 若计算模块 302根据第一接收单 401接收到的 小区边缘用户设备 UE1的信息计算出来的上行功率调整步^:/c )不大于前一 帧对应的上行功率调整步长 /c - 1 ), 则表明小区边缘用户设备 UEl按照上行 功率调整步^:/c )调整上行功率后, 调整后的上行功率不会对小区边缘其他 用户设备(例如, 用户设备 UE2 )造成干扰, 第一发送单元 402可以直接将上 行功率调整步长/ c ( i )发送至 RRMS周围的基站。 RRMS周围的基站收到上行 功率调整步^ /c )后, 再将其发送至小区边缘用户设备 UE1 , 小区边缘用户 设备 UE1按照上行功率调整步长 /c )调整其上行功率。
在附图 3示例的网络设备是异构网络中的 RRMS时, 其计算模块 302也可以 包括第一调整单元 501和第二发送单元 502, 如附图 5所示的本发明另一实施例 提供的网络设备, 其中: 第一调整单元 501, 用于若所述上行功率调整步长 /c ) 大于前一帧对应 的上行功率调整步长 /c - 1 ), 则根据重新接收的小区边缘用户设备 UE1的信 息重新计算获得上行功率调整步长 /'c ),重新计算获得上行功率调整步^/ 'C ·);
第二发送单元 502, 用于若按照所述上行功率调整步^ /'c )调整小区边 缘用户设备 UE1的上行功率后, 所述调整后的小区边缘用户设备 UE1的上行功 率不影响小区边缘用户设备 UE2和 /或小区总的吞吐量,则将所述上行功率调整 步^/ 'c )发送至所述发送模块 303, 由发送模块 303将所述上行功率调整步 长/' c ( i )发送至 RRMS周围的基站, 以使所述 RRMS周围的基站将所述上行功 率调整步^/ 'c )发送至所述小区边缘用户设备 UE1。
在附图 5示例的异构网络中,若计算模块 302根据小区边缘用户设备 UE1的 信息计算出来的上行功率调整步长 /c (i)与前一帧对应的上行功率调整步长 /c - 1)进行比较, β (i) 大于 /c 则表明小区边缘用户设备 UEl按照 上行功率调整步^:/c )调整上行功率后, 调整后的上行功率可能会对小区边 缘其他用户设备(例如, 用户设备 UE2)造成干扰, 不应该将上行功率调整步 长 /c ( ί)发送至基站, 第一调整单元 501应该按照公式(1)和公式(2)或者 公式( 1 )和公式(3 )重新计算获得上行功率调整步长 /'c (i 第一调整单元 501重新计算获得上行功率调整步^/ 'c )后, 第二发送单元 502进一步判断: 若按照所述重新计算获得的上行功率调整步^/ 'c (i)调整小区边缘用户设备 UE1的上行功率后, 调整后的小区边缘用户设备 UE1的上行功率不影响小区边 缘其他用户设备 (例如, 用户设备 UE2 )和 /或小区总的吞吐量, 则第二发送单 元 502可以将上行功率调整步长 /'c (/)发送至发送模块 303, 由发送模块 303 将所述上行功率调整步^/ 'c )发送至无线资源管理服务器周围的基站; 无 线资源管理服务器周围的基站收到上行功率调整步^/ 'c )后, 再将其发送 至小区边缘用户设备 UE1, 小区边缘用户设备 UE1按照上行功率调整步长 /'c (i)调整其上行功率。
在附图 3示例的网络设备是异构网络中的 RRMS时, 其计算模块 302也可以 包括第二调整单元 601、第三调整单元 602和第三发送单元 603,如附图 6所示的 本发明另一实施例提供的网络设备, 其中:
第二调整单元 601, 用于若判断所述上行功率调整步^ /c ( ί ) 大于前一帧 对应的上行功率调整步^ /c _ 1 ),则重新计算获得上行功率调整步 ?c ); 第三调整单元 602, 用于若按照所述上行功率调整步长 y?c )调整小区边 缘用户设备 UE1的上行功率后, 所述小区边缘用户设备 UE1的上行功率影响小 区边缘用户设备 UE2和 /或小区总的吞吐量,则重新计算以获取使得系统吞吐量 最大的所述上行功率调整步 );
第三发送单元 603, 用于将所述上行功率调整步 ^/,c )发送至所述发送 模块 303, 由所述发送模块 303将所述上行功率调整步长 /'c )发送至 RRMS 周围的基站, 以使所述 RRMS周围的基站将所述上行功率调整步长 /'c )发 送至所述小区边缘用户设备 UE1。
作为本发明另一实施例, 附图 3示例的网络设备可以是异构网络中的 RRMS周围的基站, 其接收模块 301包括第二接收单元 701, 所述发送模块 303 包括第四发送单元 702,如附图 7所示的本发明另一实施例提供的网络设备, 其 中:
第二接收单元 701 , 用于接收由所述小区边缘用户设备 UE1发送的小区边 缘用户设备 UE1的信息;
第四发送单元 702, 用于如果所述上行功率调整步长 /c ) 不大于所述前 一帧对应的上行功率调整步^:/c - 1 ), 将所述上行功率调整步^:/c )发送 至所述小区边缘用户设备 UE1 , 以使所述小区边缘用户设备 UE1根据所述上行 功率调整步^:/c ( i )调整上行功率。
在附图 7示例的网络设备中,若计算模块 302根据小区边缘用户设备 UE1的 信息计算出来的上行功率调整步^ /c )不大于前一帧对应的上行功率调整步 长 /c - 1), 则表明小区边缘用户设备 UE1按照上行功率调整步长 /c )调整 上行功率后, 调整后的上行功率不会对小区边缘其他用户设备(例如, 用户设 备 UE2)造成干扰, 第四发送单元 702可以将上行功率调整步长 /c ( i )发送至 小区边缘用户设备 UE1, 小区边缘用户设备 UE1按照上行功率调整步长 /c ) 调整其上行功率。 在附图 3示例的网络设备是异构网络中的 RRMS周围的基站时, 其计算模 块 302也可以包括第四调整单元 801和第五发送单元 802 ,如附图 8所示的本发明 另一实施例提供的网络设备, 其中:
第四调整单元 801, 用于用于若所述上行功率调整步^:/c (i) 大于前一帧 对应的上行功率调整步^ /c - 1 ),则重新计算获得上行功率调整步^:/'c ); 第五发送单元 802, 用于若按照所述上行功率调整步^ /,c )调整小区边 缘用户设备 UE1的上行功率后, 所述调整后的小区边缘用户设备 UE1的上行功 率不影响小区边缘用户设备 UE2和 /或小区总的吞吐量,则将所述上行功率调整 步长 /'c )发送至所述发送模块 303, 由所述发送模块 303将所述上行功率调 整步长 /'c )发送至所述小区边缘用户设备 UE1, 以使所述小区边缘用户设 备 UE1根据所述上行功率调整步长 /'c )调整上行功率。
在附图 8示例的网络设备中,若计算模块 302根据小区边缘用户设备 UE1的 信息, 按照公式( 1 )和公式( 2 )或者公式( 1 )和公式( 3 )计算出来的上行 功率调整步长 /c ( i) 与前一帧对应的上行功率调整步长 /c - 1)相比较, fc ( i )大于 /c - 1 ),则表明小区边缘用户设备 UE1按照上行功率调整步^ /c ( i ) 调整上行功率后, 调整后的上行功率可能会对小区边缘其他用户设备(例如, 用户设备 UE2)造成干扰, 不应该将上行功率调整步^:/c )发送至小区边缘 用户设备 UE1, 第四调整单元 801应该按照公式( 1 )和公式(2 )或者公式( 1 ) 和公式(3 )重新计算获得上行功率调整步^ /,c )。 第四调整单元 801重新计 算获得上行功率调整步^ /,c )后, 第五发送单元 802进一步判断: 若按照所 述上行功率调整步长 /'c U)调整小区边缘用户设备 UE1的上行功率后, 调整 后的小区边缘用户设备 UE 1的上行功率不影响小区边缘其他用户设备 (例如, 用户设备 UE2 )和 /或小区总的吞吐量, 则第五发送单元 802可以将上行功率调 整步^ /'c (i)发送至所述发送模块 303, 由所述发送模块 303将所述上行功率 调整步长/' c )发送至小区边缘用户设备 UE1; 小区边缘用户设备 UE1收到 上行功率调整步长 /'c )后, 按照上行功率调整步长 /'c )调整其上行功率。
在附图 3示例的网络设备是异构网络中的 RRMS周围的基站时, 其计算模 块 302也可以包括第五调整单元 901、第六调整单元 902和第六发送单元 903,如 附图 9所示的本发明另一实施例提供的网络设备, 其中:
第五调整单元 901 , 用于若所述上行功率调整步长 /c ) 大于前一帧对应 的上行功率调整步^:/c 则重新计算获得上行功率调整步 ?c );
第六调整单元 902, 用于若按照所述上行功率调整步长 y?c )调整小区边 缘用户设备 UE1的上行功率后, 所述调整后的小区边缘用户设备 UE1的上行功 率影响小区边缘用户设备 UE2和 /或小区总的吞吐量,则重新计算以获取使得系 统吞吐量最大的所述上行功率调整步长 /,c );
第六发送单元 903 , 用于将所述上行功率调整步 ^/,c )发送至所述发送 模块 303 , 由所述发送模块 303将所述上行功率调整步^/ 'c )发送至所述小 区边缘用户设备 UE1 , 以使所述小区边缘用户设备 UE1根据所述上行功率调整 步^/ 'c ( i )调整上行功率。
需要说明的是, 上述装置各模块 /单元之间的信息交互、 执行过程等内容, 由于与本发明方法实施例基于同一构思,其带来的技术效果与本发明方法实施 例相同, 具体内容可参见本发明方法实施例中的叙述, 此处不再赘述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成,比如以下各种方法的一种或多种 或全部:
接收小区边缘用户设备 UE1的信息;
根据所述小区边缘用户设备 UE1的信息, 计算所述小区边缘用户设备 UE1 的上行功率调整步^:/c );
比较所述上行功率调整步长 /c )与前一帧对应的上行功率调整步长 /c - 1 ), 如果所述上行功率调整步长 /c )不大于所述前一帧对应的上行功率调 整步^:/c _ 1 ), 将所述上行功率调整步^:/c )发送至所述小区边缘用户设 备 UE1。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可读 存储介质中, 存储介质可以包括: 只读存储器(ROM, Read Only Memory ) 、 随机存取存储器 (RAM, Random Access Memory ) 、 磁盘或光盘等。 以上对本发明实施例提供的异构网络中用户设备的上行功率控制方法和 进行了阐述, 以上实施例的说明只是用于帮助理解本发明的方法及其核心思 想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在具体实施方式 及应用范围上均会有改变之处, 综上所述, 本说明书内容不应理解为对本发明 的限制。

Claims

权 利 要 求
1、 一种异构网络中用户设备的上行功率控制方法, 其特征在于, 所述方 法包括:
接收小区边缘用户设备 UE1的信息;
根据所述小区边缘用户设备 UE1的信息,计算所述小区边缘用户设备 UE1 的上行功率调整步^:/c );
比较所述上行功率调整步长 /c U) 与前一帧对应的上行功率调整步长 /c 如果所述上行功率调整步长 /c ) 不大于所述前一帧对应的上行功 率调整步^ /c 将所述上行功率调整步^:/c )发送至所述小区边缘 用户设备 UE1。
2、 如权利要求 1所述的方法, 其特征在于, 所述计算所述小区边缘用户 设备 UE1的上行功率调整步长 /c )之后, 所述方法还包括: 重新接收小区 边缘用户设备 UE1的信息;
比较所述上行功率调整步长 /c U) 与前一帧对应的上行功率调整步长 /c - 1)之后, 所述方法还包括:
如果所述上行功率调整步长 /c (i) 大于前一帧对应的上行功率调整步长 fc (i- l ), 则根据重新接收的小区边缘用户设备 UE1的信息重新计算获取上 行功率调整步
Figure imgf000023_0001
), 将所述上行功率调整步^/ 'c )发送至所述小区边 缘用户设备 UE1。
3、 如权利要求 1所述的方法, 其特征在于, 所述接收小区边缘用户设备
UE1的信息包括: 无线资源管理服务器接收由所述无线资源管理服务器周围 的基站发送的小区边缘用户设备 UE1的信息;
所述将所述上行功率调整步^ /c )发送至所述小区边缘用户设备 UE1 包括: 所述无线资源管理服务器将所述上行功率调整步^:/c (i)发送至所述 基站, 以使所述基站将所述上行功率调整步^:/c )发送至所述小区边缘用 户设备 UE1。
4、 如权利要求 2所述的方法, 其特征在于, 所述重新计算获取上行功率 调整步 ), 将所述上行功率调整步^/ 'c )发送至所述小区边缘用户 设备 UE1包括: 如果所述上行功率调整步长 /C ) 大于前一帧对应的上行功率调整步长 fc 时, 无线资源管理服务器重新计算获得上行功率调整步长 /'c );
若按照重新计算获得的所述上行功率调整步^/ 'c )调整小区边缘用户 设备 UE1的上行功率后,所述小区边缘用户设备 UE1的上行功率不影响小区边 缘用户设备 UE2和 /或小区总的吞吐量, 则所述无线资源管理服务器将所述上 行功率调整步
Figure imgf000024_0001
)发送至所述基站, 以使所述基站将所述上行功率调整 步^/ 'c (i)发送至所述小区边缘用户设备 UEl。
5、 如权利要求 2所述的方法, 其特征在于, 所述重新计算获取上行功率 调整步 ), 将所述上行功率调整步^/ 'c )发送至所述小区边缘用户 设备 UE1包括:
如果所述上行功率调整步长 /c (i) 大于前一帧对应的上行功率调整步长 fc (i- l ) 时, 无线资源管理服务器重新计算获得上行功率调整步 ?c );
若按照所述上行功率调整步长/ jfc )调整小区边缘用户设备 UEl的上行 功率后, 所述小区边缘用户设备 UE1的上行功率影响小区边缘用户设备 UE2 和 /或小区总的吞吐量, 则所述无线资源管理服务器重新计算获取使得系统吞 吐量最大的所述上行功率调整步长 /,c );
所述无线资源管理服务器将所述上行功率调整步
Figure imgf000024_0002
)发送至所述基 站, 以使所述基站将所述上行功率调整步^/ 'c )发送至所述小区边缘用户 设备 UE1。
6、 如权利要求 1所述的方法, 其特征在于, 所述接收小区边缘用户设备
UE1的信息包括: 无线资源管理服务器周围的基站接收由所述小区边缘用户 设备 UE1发送的所述小区边缘用户设备 UE1的信息;
所述根据所述小区边缘用户设备 UE1的信息, 计算所述小区边缘用户设 备 UE1的上行功率调整步^ /c ) 包括: 所述无线资源管理服务器周围的基 站根据小区边缘用户设备 UE1的信息计算所述小区边缘用户设备 UE1的上行 功率调整步 c );
所述将上行功率调整步^:/c )发送至所述小区边缘用户设备 UEl包括: 所述无线资源管理服务器周围的基站将所述上行功率调整步^:/c )发送至 所述小区边缘用户设备 UE1 ,以使所述小区边缘用户设备 UE1根据所述上行功 率调整步^ /c )调整上行功率。
7、 如权利要求 2所述的方法, 其特征在于, 所述重新计算获取上行功率 调整步 ^/'C ), 将所述上行功率调整步^/ 'C )发送至所述小区边缘用户 设备 UE1包括:
当所述上行功率调整步长 /c (/) 大于前一帧对应的上行功率调整步长 fc (i- \ )时, 无线资源管理服务器周围的基站重新计算获得上行功率调整步 长/, c ·);
若按照所述上行功率调整步长 /'c )调整小区边缘用户设备 UE1的上行 功率后,所述小区边缘用户设备 UE1的上行功率不影响小区边缘用户设备 UE2 和 /或小区总的吞吐量, 则所述无线资源管理服务器周围的基站将所述上行功 率调整步^/ 'c )发送至所述小区边缘用户设备 UE1。
8、 如权利要求 2所述的方法, 其特征在于, 所述重新计算获取上行功率 调
Figure imgf000025_0001
), 将所述上行功率调整步^/ 'c )发送至所述小区边缘用户 设备 UE1包括:
如果所述上行功率调整步长 /c (i) 大于前一帧对应的上行功率调整步长 fc (卜 1 ), 则无线资源管理服务器周围的基站重新计算获得上行功率调整步 长 y?c ( i );
若按照所述上行功率调整步长/ jfc )调整小区边缘用户设备 UEl的上行 功率后, 所述小区边缘用户设备 UE1的上行功率影响小区边缘用户设备 UE2 和 /或小区总的吞吐量, 则所述无线资源管理服务器周围的基站重新计算以获 取使得系统吞吐量最大的所述上行功率调整步长 /,c ( i );
所述无线资源管理服务器周围的基站将所述上行功率调整步^/ 'c )发 送至所述小区边缘用户设备 UE1。
9、 如权利要求 1至 8任意一项所述的方法, 其特征在于, 所述小区边缘用 户设备 UE1的信息包括小区边缘用户设备 UE1的位置坐标、小区边缘用户设备
UE1当前所使用的发射功率、小区边缘用户设备 UE1到服务基站的上行路径损 耗和到无线资源管理服务器周围的基站的上行路径损耗、 小区边缘用户设备 UE1所使用的物理资源块、小区边缘用户设备 UE1所使用业务的服务质量和小 区边缘用户设备 UE1在上行所遭受的干扰。
10、 一种网络设备, 其特征在于, 所述网络设备包括:
接收模块, 用于接收小区边缘用户设备 UE1的信息;
计算模块, 用于根据所述小区边缘用户设备 UE1的信息, 计算所述小区 边缘用户设备 UE1的上行功率调整步长 /c ); 比较所述上行功率调整步长 /c ( i)与前一帧对应的上行功率调整步长 /c ( i- l );
发送模块, 用于如果所述计算模块比较的所述上行功率调整步^/ c ) 不大于所述前一帧对应的上行功率调整步长 /c 将所述上行功率调整 步^ /c )发送至所述小区边缘用户设备 UE1。
11、 如权利要求 10所述的网络设备, 其特征在于,
所述接收模块还用于重新接收小区边缘用户设备 UE1的信息;
所述计算模块还用于如果所述上行功率调整步^:/c ) 大于前一帧对应 的上行功率调整步^:/c 根据所述接收模块重新接收的小区边缘用户 设备 UE1的信息重新计算获取上行功率调整步^/ 'c );
所述发送模块还用于将所述计算模块重新计算获取的所述上行功率调整 步长 /'c )发送至所述小区边缘用户设备 UE1。
12、 如权利要求 10所述的网络设备, 其特征在于, 所述网络设备为无线 资源管理服务器, 所述接收模块包括第一接收单元, 所述发送模块包括第一 发送单元;
所述第一接收单元, 用于接收由所述无线资源管理服务器周围的基站发 送的小区边缘用户设备 UE1的信息;
所述第一发送单元, 用于若所述上行功率调整步^:/c ( i ) 不大于前一帧 对应的上行功率调整步长 /c 则将所述上行功率调整步长 /c )发送 至所述基站, 以使所述基站将所述上行功率调整步^/ c )发送至所述小区 边缘用户设备 UE1。
13、 如权利要求 11所述的网络设备, 其特征在于, 所述计算模块包括: 第一调整单元, 用于若所述上行功率调整步^:/c ) 大于前一帧对应的 上行功率调整步长/ c 则根据重新接收的小区边缘用户设备 UE1的信 息重新计算获得上行功率调整步^ /'c ( i );
第二发送单元, 用于若按照所述上行功率调整步^ /'c )调整小区边缘 用户设备 UE1的上行功率后,所述调整后的小区边缘用户设备 UE1的上行功率 不影响小区边缘用户设备 UE2和 /或小区总的吞吐量, 则将所述上行功率调整 步长 /'c )发送至所述发送模块;
所述发送模块将所述上行功率调整步^/ 'c )发送至所述基站, 以使所 述基站将所述上行功率调整步^/ 'c )发送至所述小区边缘用户设备 UE1。
14、 如权利要求 11所述的网络设备, 其特征在于, 所述网路设备为无线 资源管理服务器, 所述计算模块包括:
第二调整单元, 用于若判断所述上行功率调整步^:/c ) 大于前一帧对 应的上行功率调整步^:/c - 1 ), 则重新计算获得上行功率调整步 / c );
第三调整单元, 用于若按照所述上行功率调整步 ?c )调整小区边缘 用户设备 UE1的上行功率后,所述小区边缘用户设备 UE1的上行功率影响小区 边缘用户设备 UE2和 /或小区总的吞吐量, 则重新计算获取使得系统吞吐量最 大的所述上行功率调整步长 /'c );
第三发送单元, 用于将所述上行功率调
Figure imgf000027_0001
)发送至所述发送模 块;
所述发送模块将所述上行功率调整步长 /'c )发送至基站, 以使所述基 站将所述上行功率调整步^ /'c (i)发送至所述小区边缘用户设备 UE1。
15、 如权利要求 10所述的网络设备, 其特征在于, 所述网络设备为基站, 所述接收模块包括第二接收单元, 所述发送模块包括第四发送单元;
所述第二接收单元, 用于接收由所述小区边缘用户设备 UE1发送的小区 边缘用户设备 UE1的信息;
所述第四发送单元, 用于如果所述上行功率调整步长 /c ) 不大于所述 前一帧对应的上行功率调整步长 /c _ 1 )时, 将所述上行功率调整步长 /c ) 发送至所述小区边缘用户设备 UE1 ,以使所述小区边缘用户设备 UE1根据所述 上行功率调整步长 /c )调整上行功率。
16、 如权利要求 11所述的网络设备, 其特征在于, 所述网络设备为基站, 所述计算模块包括:
第四调整单元, 用于若所述上行功率调整步长 /c ) 大于前一帧对应的 上行功率调整步^ /c (/-!), 则重新计算获得上行功率调整步长 /'c ); 第五发送单元, 用于若按照所述上行功率调整步^ /,C )调整小区边缘 用户设备 UE1的上行功率后,所述调整后的小区边缘用户设备 UE1的上行功率 不影响小区边缘用户设备 UE2和 /或小区总的吞吐量, 则将所述上行功率调整 步长 /'c )发送至所述发送模块;
所述发送模块将所述上行功率调整步^/ 'c ( i )发送至所述小区边缘用户 设备 UE1 , 以使所述小区边缘用户设备 UE1根据所述上行功率调整步长 /'c ( i ) 调整上行功率。
17、 如权利要求 11所述的网络设备, 其特征在于, 所述网络设备为基站, 所述计算模块包括:
第五调整单元, 用于若所述上行功率调整步长 /c ) 大于前一帧对应的 上行功率调整步^:/c 则重新计算获得上行功率调整步 ?c );
第六调整单元, 用于若按照所述上行功率调整步 ?c )调整小区边缘 用户设备 UE1的上行功率后,所述调整后的小区边缘用户设备 UE1的上行功率 影响小区边缘用户设备 UE2和 /或小区总的吞吐量, 则重新计算以获取使得系 统吞吐量最大的所述上行功率调整步长 /,c );
第六发送单元, 用于将所述上行功率调整步 ^/,c )发送至所述发送模 块;
所述发送模块将所述上行功率调整步^/ 'c )发送至所述小区边缘用户 设备 UE1 , 以使所述小区边缘用户设备 UE1根据所述上行功率调整步长 /'c ( i ) 调整上行功率。
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