WO2012174828A1 - Procédé et dispositif de planification - Google Patents

Procédé et dispositif de planification Download PDF

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Publication number
WO2012174828A1
WO2012174828A1 PCT/CN2011/083458 CN2011083458W WO2012174828A1 WO 2012174828 A1 WO2012174828 A1 WO 2012174828A1 CN 2011083458 W CN2011083458 W CN 2011083458W WO 2012174828 A1 WO2012174828 A1 WO 2012174828A1
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WO
WIPO (PCT)
Prior art keywords
base station
information
neighboring base
transmit power
interference strength
Prior art date
Application number
PCT/CN2011/083458
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English (en)
Chinese (zh)
Inventor
刘锟
鲁照华
罗薇
李卫敏
刘向宇
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2012174828A1 publication Critical patent/WO2012174828A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/27—Control channels or signalling for resource management between access points
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • a base station communicates with a terminal through uplink and downlink.
  • the downlink forward refers to the direction of the base station to the terminal
  • the uplink reverse refers to the direction of the terminal to the base station.
  • a plurality of terminals can simultaneously transmit data to the base station through the uplink, or can simultaneously receive data from the base station through the downlink.
  • Orthogonal Frequency Division Multiplexing OFDM
  • the base station and the terminal in the same cell perform downlink data transmission
  • the downlinks of the terminals are orthogonal to each other, so that intra-cell interference can be avoided.
  • the downlinks of the terminals in different cells may not be orthogonal, and therefore each terminal may be subjected to downlink interference from other neighboring cell base stations, that is, inter-cell interference. Reducing the impact of inter-cell interference on system performance is an important goal of OFDM system design. If the interference between cells is serious, the system capacity will be reduced, especially the transmission capacity of the cell edge users will be reduced, which will affect the coverage capability of the system and the terminal. performance.
  • the inter-cell interference coordination technology can effectively reduce the inter-cell interference strength. That is, the coordinated scheduling method can reasonably allocate scheduling resources for neighboring cells, and avoid allocating the same resources to the edge users of neighboring cells.
  • necessary scheduling information must be coordinated between the base stations before scheduling.
  • a base station sends a narrow Narrowband Tx Power (RNTP) signaling to a neighboring base station.
  • RNTP narrow Narrowband Tx Power
  • 1 is a schematic diagram of a RNTP information format according to the related art. As shown in FIG. 1, the available resources of the base station 1 (Base Station 1, abbreviated as BS1) can be divided into N resource blocks (Resource Blocks, RB for short). The index number is RB1, RB2, RB3, ...
  • RNTP For each RB resource, RNTP has a bit information corresponding thereto, where "0" indicates that the RB has low transmission power, "1" It indicates that the transmission power of the RB is high, so the format of the RNTP signaling is "100...01", and the BS1 sends the RNTP signaling to the base stations of the neighboring cells, for example, BS2 and BS3, and FIG. 2 is a RNTP according to the related art.
  • FIG. 2 is a RNTP according to the related art.
  • a scheduling method is provided, which is applied to a base station, where the performing by the base station includes: receiving, by a neighboring base station, information about a transmit power of the neighboring base station on a scheduling unit and downlink interference.
  • Strength information where the downlink interference strength information is used to indicate whether a user scheduled by the neighboring base station on the scheduling unit is interfered by the base station; according to information about receiving the transmit power of the neighboring base station, The downlink interference strength information is adjusted for a scheduling unit used by the base station and/or a transmission power on a scheduling unit used.
  • Receiving the information about the transmit power and the downlink interference strength information sent by the neighboring base station by: receiving the indication signaling sent by the neighboring base station, where the indication signaling carries the downlink The interference strength information is received; or, the scheduling signaling sent by the neighboring base station is received, where the scheduling signaling carries information about the transmit power and the downlink interference strength information on the scheduling unit.
  • Receiving the scheduling signaling sent by the neighboring base station comprising: receiving, by the neighboring base station, narrowband transmit power signaling, where the narrowband transmit power signaling carries the neighboring base station in the different The information about the transmit power on the scheduling unit; the downlink interference strength indication signaling sent by the neighboring base station, where the downlink interference strength indication signaling carries the downlink interference strength information.
  • the indication signaling is narrowband transmit power signaling, where the narrowband transmit power signaling is used to carry information about transmit power of the neighboring base station on the different scheduling unit.
  • the neighboring base station carries the downlink interference strength information on the narrowband transmit power signaling at a predetermined time, and is sent by the neighboring base station to the base station; wherein, the predetermined time is determined by the base station and the phase
  • the neighbor base station determines or is configured by the standard default.
  • the scheduling unit is one or more resource blocks RB.
  • a scheduling apparatus which is applied to a base station, and includes: a receiving module, configured to receive, by a neighboring base station, information about transmit power of the neighboring base station on a scheduling unit and downlink interference The strength information, where the downlink interference strength information is used to indicate whether the user scheduled by the neighboring base station on the scheduling unit is interfered by the base station; and the adjusting module is configured to receive, according to the neighboring base station, The information of the transmit power and the downlink interference strength information are adjusted for the scheduling unit used by the base station and/or the transmit power on the used scheduling unit.
  • the receiving module is configured to receive the information about the transmit power and the downlink interference strength information that are sent by the neighboring base station by: at least one of: receiving indication signaling sent by the neighboring base station, where the indication The downlink interference strength information is carried; or the scheduling signaling sent by the neighboring base station is received, where the scheduling signaling carries information about the transmit power and the downlink interference strength information on the scheduling unit. .
  • the receiving module includes: a first receiving module, where the information about the transmit power and the downlink interference strength information sent by the neighboring base station are received by receiving the scheduling signaling sent by the neighboring base station, And the narrowband transmit power signaling sent by the neighboring base station is received, where the narrowband transmit power signaling carries information about transmit power of the neighboring base station on the different scheduling unit; And the downlink interference strength indication signaling that is sent by the neighboring base station, where the downlink interference strength indication signaling carries the downlink interference strength information, where the signaling is the base station and the phase The neighboring base station is pre-agreed.
  • the indication signaling is narrowband transmit power signaling.
  • the information about the transmit power of the neighboring base station on the scheduling unit and the downlink interference strength information that are sent by the neighboring base station are received, where the downlink interference strength information is used to indicate that the neighboring base station is in the Whether the user scheduled on the scheduling unit is interfered by the base station; the scheduling unit used by the base station according to the information of the transmission power of the neighboring base station and the downlink interference strength information, and/or used
  • the transmission power on the scheduling unit is adjusted to solve the problem of wasting resources in order to avoid inter-cell interference, thereby achieving the effect of saving resources.
  • FIG. 1 is a schematic diagram of a RNTP information format according to the related art
  • FIG. 2 is a schematic diagram of a RNTP information transmission manner according to the related art
  • FIG. 3 is a schematic diagram of a topology of a wireless communication system according to the related art
  • 4 is a flowchart of a scheduling method according to an embodiment of the present invention
  • FIG. 5 is a structural block diagram of a scheduling apparatus according to an embodiment of the present invention
  • FIG. 6 is a structural block diagram of a receiving module in a scheduling apparatus according to an embodiment of the present invention
  • 7 is a schematic diagram of a topology of a wireless communication system in accordance with a preferred embodiment of the present invention
  • FIG. 8 is a schematic diagram of a downlink interference strength indication signaling format in accordance with a preferred embodiment of the present invention
  • FIG. 9 is another diagram in accordance with a preferred embodiment of the present invention.
  • a schematic diagram of a downlink interference strength indication signaling format BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 3 is a schematic diagram of a topology of a wireless communication system according to the related art.
  • BS1 transmits to its resource scheduling unit 1 to BS2 and BS3 (BS1 is a neighboring base station of BS2 and BS3) (for example, the The scheduling unit may have a high transmit power of one resource block RB1).
  • RNTP the bit on the RNTP is 1 for the scheduling unit 1, indicating that the BS1 is to use the high-power service edge user mobile terminal 1 (Mobile) Station 1 (abbreviated as MSI);
  • MSI mobile subscriber edge user mobile terminal 1
  • BS2 and BS3 need to interfere with BS1, regardless of whether MS1 scheduled by BS1 is really interfered by BS2 and BS3.
  • both BS2 and BS3 need to schedule users. Avoid interference with MS1.
  • MS1 is not necessarily interfered by BS2 and BS3.
  • MS1 in Figure 3 will only be interfered by BS3, but will not be interfered by BS2, but BS2 also dispatches users.
  • FIG. 4 is a flowchart of a scheduling method according to an embodiment of the present invention. As shown in FIG. 4
  • Step S402 Receiving, by the neighboring base station, the information about the transmit power of the neighboring base station on the scheduling unit and the downlink interference strength information, where the downlink interference strength information is used to indicate whether the user scheduled by the neighboring base station on the scheduling unit receives the The interference of the base station, for example, the scheduling unit is one or more resource blocks RB; Step S404, according to the information about the received transmit power of the neighboring base station and the downlink interference strength information, the scheduling unit used by the base station and/or the The transmit power on the scheduling unit used is adjusted.
  • the downlink interference strength information is added, and the information combined with the information of the transmit power can be adjusted to avoid the interference between the base station cells and the resources are used reasonably, thereby saving resources.
  • the downlink interference information is sent in many ways, and the transmission method does not affect the resolution of the technical problem and the acquisition of the technical effect.
  • the base station receives the indication signaling sent by the neighboring base station, where The indication signaling carries the downlink interference strength information, and the indication signaling may be some other signaling listed in the embodiment, as long as the downlink interference information is carried; and, for example, may also be sent by receiving the neighboring base station.
  • the scheduling signaling where the scheduling signaling carries the information about the transmit power and the downlink interference strength information on the scheduling unit, that is, the neighboring base station sends a proprietary signaling, and the proprietary signaling can be performed according to requirements.
  • the format is set in advance.
  • the receiving the scheduling signaling sent by the neighboring base station includes: The narrowband transmit power signaling sent by the neighboring base station, where the narrowband transmit power signaling carries the information about the transmit power of the neighboring base station on different scheduling units; and receives the downlink interference strength indication signaling sent by the neighboring base station, where The downlink interference strength indication signaling carries downlink interference strength information.
  • the processing method is simple to implement and the signaling format is clear.
  • narrowband transmit power signaling may also be used as indication signaling, and the narrowband transmit power signaling is used to carry information about transmit power on different scheduling units of neighboring base stations.
  • the indication signaling is transmitted by using narrowband transmit power.
  • the signaling carries the downlink interference strength indication information, and the narrowband transmission power signaling itself also carries the information of the transmission power of different scheduling units. Therefore, the narrowband transmission power signaling can directly avoid inter-cell interference and save resources.
  • the neighboring base station may carry the downlink interference strength information on the narrowband transmit power signaling at a predetermined moment, where the predetermined moment is determined by the base station and the neighboring base station or configured by a standard default.
  • the existing existing signaling may be used either by receiving the indication signaling or by receiving the scheduling signaling, or one or two new messages may be added for transmitting the two information.
  • the two pieces of information may be transmitted through one narrowband transmit power signaling, or may be separately transmitted through two narrowband transmit power signalings, or may be sent through a narrowband transmit power signaling.
  • One of the two messages, and then the other of the two messages is sent by another piece of signaling.
  • a preferred implementation manner is provided, where the information about the transmit power of the neighboring base station on the scheduling unit and the neighboring base station of the downlink interference strength information are combined to consider the two types of information, for example, BS1 to BS2.
  • the transmitted information indicating the transmit power and the downlink interference strength information may be used in three cases: 1.
  • BS1 has a strong transmit power on RB1, and its corresponding bit is represented as 1, and BS2 brings interference, and the corresponding bit is 1; 2.
  • BS1 has a strong transmit power on RB1, and its corresponding bit is represented as 1, BS2 does not cause interference, and its corresponding bit is 0; 3.
  • BS1's transmit power on RB1 is weak, and its corresponding The bit is 0, in which case it is not necessary to consider whether BS2 will cause interference.
  • 11 means that BS2 does not schedule users on RB1 or has lower transmit power on RB1
  • both 10 and 00 indicate that BS2 can schedule users on RB1 and use higher transmit power
  • 10 and 00 indicate the same, so you can use "0" to represent, and "11” can use "1” to represent, so through a resource
  • the scheduling unit only needs to use one bit to represent it.
  • RNTP is used to transmit the two information, there is no need to make any modification to the RNTP signaling, but the bit values of the RNTP signaling sent to different neighboring base stations may be different, which is related to the prior art. The same bit value is different in the RNTP signaling sent to all neighboring base stations.
  • the method for obtaining the downlink interference strength information may be multiple.
  • the downlink interference strength information sent by the neighboring base station may be from a terminal, and the terminal may receive the signal quality of the neighboring base station and the base station, and obtain that the terminal receives the The interference strength information brought by other base stations of the base station to which the terminal belongs is then notified to the neighboring base station by reporting.
  • a scheduling apparatus is further provided.
  • FIG. 5 is a structural block diagram of a scheduling apparatus according to an embodiment of the present invention. As shown in FIG. 5, the apparatus is applied to a base station, and includes: a receiving module 52 and an adjusting module 54.
  • the device is used to implement the above embodiments and preferred embodiments, and the descriptions of the modules involved in the device will be described below.
  • the receiving module 52 is configured to receive, by the neighboring base station, the information about the transmit power of the neighboring base station on the scheduling unit and the downlink interference strength information, where the downlink interference strength information is used to indicate that the neighboring base station is scheduled on the scheduling unit Whether the user is interfered by the base station, for example, the scheduling unit is one or more resource blocks RB; the adjusting module 54 is connected to the receiving module 52, and is configured to receive information about the transmit power of the neighboring base station and the downlink interference according to the received The strength information is adjusted for the scheduling unit used by the base station and/or the transmit power on the scheduling unit used.
  • the receiving module 52 is configured to receive, by using indication signaling (for example, the indication signaling is narrowband transmit power signaling), information about the transmit power of the neighboring base station sent by the neighboring base station on different scheduling units, and the downlink interference strength information. Or receiving, by using the scheduling signaling, information about the transmit power of the neighboring base station sent by the neighboring base station on different scheduling units and the downlink interference strength information.
  • the receiving module 52 includes a first receiving module 522 and a second receiving module 524. 6 is a structural block diagram of a receiving module in a scheduling apparatus according to an embodiment of the present invention. As shown in FIG.
  • the first receiving module 522 is configured to receive the narrowband transmit power signaling sent by the neighboring base station, where the narrowband transmit power signaling carries information about the transmit power of the neighboring base station on different scheduling units;
  • the second receiving module 524 is connected to the first receiving module 522, and is configured to receive the downlink interference strength indication signaling sent by the neighboring base station, where the downlink interference strength indication signaling carries the downlink interference strength information, and the foregoing information Let the base station and the above neighboring base stations be pre-approved. The following description is based on the preferred embodiments, which are combined with the above-described embodiments and preferred embodiments.
  • the preferred embodiment provides a downlink interference strength indication signaling (the signaling carries the downlink interference strength information, that is, the signaling that carries the downlink interference strength information in the preferred embodiment may be referred to as the downlink interference strength.
  • the signaling may be implemented by improving existing signaling, or may add a dedicated signaling.
  • the transmitting and receiving methods are effective by the preferred embodiment. The interference intensity between cells is suppressed, and the resource utilization rate is increased. The method provided in the preferred embodiment will now be described.
  • the first base station sends the downlink interference strength indication information to the second base station, where the first base station is an access node in the wireless network, and may be a macro base station, a micro base station, a home base station, a relay, or the like, and may directly or indirectly provide the terminal.
  • the device providing the service; the second base station is an access node adjacent to the first base station; the downlink interference strength indication information includes at least one downlink interference strength indication information of one or more scheduling units.
  • the scheduling unit may be one or more RBs available to the first base station, and the downlink interference strength indication information of the scheduling unit may be described by N bits (N is a positive integer greater than or equal to 1).
  • the mapping relationship between the downlink interference strength indication information and the downlink interference strength is configured by a standard default; wherein the downlink interference strength indication information may be sent by the first base station to the second base station by using dedicated signaling;
  • the sending manner may be periodic transmission or signaling to the first base station by the upper layer network unit; if periodic transmission is selected, the above period may be configured by a standard default.
  • the downlink interference strength indication information may also be sent by the first base station to the second base station by using other signaling, for example, the other signaling may be signaling for transmitting RNTP information, where the first base station according to the foregoing
  • the determined mapping rule sends the RNTP information, and the second base station obtains the downlink interference strength indication information according to the predetermined mapping rule; the predetermined mapping rule may be jointly determined by the first base station and the second base station, or may be determined by the standard. default allocation.
  • the second base station receives the downlink interference strength indication information sent by the first base station, and further obtains a downlink interference strength value of the first base station on the scheduling unit, where the higher the downlink interference strength value indicates that the first base station is scheduled on the scheduling unit.
  • the base station that adjusts the transmission power of the resource scheduling unit or the scheduling unit in the related art is separately determined by the method for transmitting and receiving the downlink interference strength indication signaling, and the adjustment is performed only if the adjustment needs to be performed, The relevant processing needs to be adjusted, and such processing can effectively suppress the interference intensity between cells, increase the resource utilization rate, and save resources.
  • 7 is a schematic diagram of a topology of a wireless communication system in accordance with a preferred embodiment of the present invention, and two preferred embodiments are described below in conjunction with FIG.
  • the neighboring base stations of BS1 are BS2 and BS3, and the downlink available resources of BS1 are 50 RBs (RB1, RB2, ..., RB50).
  • the serving base station of the MSI is BS1 and the strong interference source is BS3, the serving base station of MS2 is BS2 and there is no strong interference source, the serving base station of MS3 is BS3 and the strong interference source is BS1.
  • the BS1 completes the allocation of user resources in the cell, and allocates resources of RB1 to MS1.
  • the MS1 is a cell edge user, and the BS1 is required to use a high-power carrier to transmit data.
  • BS1 sends RNTP signaling to BS2 and BS3 to indicate the level of carrier transmit power on each RB.
  • 0 indicates that the transmission power of the RB is low
  • 1 indicates that the transmission power of the RB is high.
  • BS2 and BS3 receive the RNTP signaling sent by BS1, and learn the RNTP value "100...00" of each RB through decoding, and then know that BS1 will use high power to transmit data on RB1;
  • FIG. 8 is a schematic diagram of a downlink interference strength indication signaling format according to a preferred embodiment of the present invention, where "0" means that the user scheduled by BS1 on RB1 is not subject to The interference of BS2, "1" means that the user scheduled by BS1 on RB1 will be interfered by BS2;
  • FIG. 9 is a schematic diagram of another downlink interference strength indication signaling format according to a preferred embodiment of the present invention, where "0" means that the user scheduled by BS1 on RB1 is not subject to BS3.
  • Interference means that users scheduled by BS1 on RB1 will be interfered by BS3; BS2 and BS3 complete the scheduling of the user of the cell according to the received RNTP and downlink interference strength indication signaling sent by BS1: BS2 determines that RNTP information sent by BS1 is not required to be considered on the RBI according to the received RNTP and DL_StrInter£2 sent by BS1 ( RB1's high-power indication information), that is, there is no need to reduce the transmission power of the RB1 of the local cell or the resource of the RB1 in order to avoid the interference; the BS3 determines that the RNTP to be transmitted by the BS1 needs to be considered on the RB1 according to the received RNTP and DL_StrInterG sent by the BS1.
  • the neighboring base stations of BS1 are BS2 and BS3, and the downlink available resources of BS1 are 50 RBs (RB1, RB2, ..., RB50).
  • the serving base station of the MSI is BS1 and the strong interference source is BS3, the serving base station of MS2 is BS2 and there is no strong interference source, the serving base station of MS3 is BS3 and the strong interference source is BS1.
  • the BS1 completes the allocation of user resources in the cell, and allocates resources of RB1 to MS1.
  • the MS1 is a cell edge user, and the BS1 is required to use a high-power carrier to transmit data.
  • a transmission rule and a receiving method of the RNTP are defined in advance between the BS1, the BS2, and the BS3.
  • the BS1 sends the RNTP signaling to the BS2 and the BS3 twice.
  • the first RNTP signaling is used to indicate the RB of the local base station.
  • the carrier transmit power level.
  • "0" indicates that the transmission power of the RB is low
  • "1" indicates that the transmission power of the RB is high.
  • it is assumed that only the high power transmission is adopted on the RB1, and the format of the RNTP signaling is "100...00"; wherein the second RNTP signaling is the BS1 to the BS2 and the BS3 by means of the RNTP signaling.
  • BS1 sends downlink interference strength indication information DL_StrInter£2 to BS2 by means of RNTP signaling, because BS1 adopts high power transmission on RB1, but since the strong interference source of user MS1 allocated by BS1 on RB1 does not include BS2, BS2 can The impact on MS1 interference is not considered on the RBI.
  • the format of DL_StrInter£2 is as shown in FIG. 8, where "0" means that the user scheduled by BS1 on RB1 is not interfered by BS2, and "1" means that the user scheduled by BS1 on RB1 is interfered by BS2.
  • BS1 sends downlink interference strength indication information DL_StrInterG to BS3 by means of RNTP signaling.
  • the format of the DL_StrInterG is as shown in Figure 9, where "0" means that the user scheduled by BS1 on RB1 is not interfered by BS3, and "1" means that the user scheduled by BS1 on RB1 is interfered by BS3;
  • BS2 and BS3 receive the first RNTP signaling sent by BS1, and learn the RNTP value "100...00" of each RB by decoding, and then know that BS1 will use high power to transmit data on RB1;
  • the BS2 and the BS3 obtain the downlink interference strength indication information according to the second RNTP signaling sent by the BS1.
  • BS2 determines that RNTP information (high-power indication information of RB1) sent by BS1 does not need to be considered on RB1 according to RNTP and DL_StrInter£2 sent by BS1, that is, there is no need to reduce the transmission power of RB1 of the local cell or not to avoid interference.
  • Scheduling the resources of RB1; BS3 determines that RNTP information (high-power indication information of RB1) sent by BS1 needs to be considered on the RBI according to the received RNTP and DL StrlnterG sent by BS1, and BS3 needs to avoid interference when scheduling users on RB1.
  • the resource of the RB1 of the local cell is reduced or the resource of the RB1 is not scheduled.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any particular combination of hardware and software.
  • the above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé et un dispositif de planification. Le procédé est appliqué dans une station de base. Les étapes exécutées par la station de base consistent à : recevoir des informations de puissance d'émission et des informations d'intensité d'interférence de liaison descendante d'une station de base voisine sur une unité de planification envoyées par la station de base voisine, les informations d'intensité d'interférence de liaison descendante étant utilisées pour indiquer si la station de base interfère ou non avec un utilisateur planifié sur l'unité de planification par la station de base voisine ; et selon les informations de puissance d'émission reçues et les informations d'intensité d'interférence de liaison descendante reçues de la station de base voisine, ajuster l'unité de planification utilisée par la station de base et/ou la puissance d'émission sur l'unité de planification utilisée. Par l'intermédiaire de la présente invention, une interférence entre cellules peut être évitée et des ressources peuvent être économisées.
PCT/CN2011/083458 2011-06-24 2011-12-05 Procédé et dispositif de planification WO2012174828A1 (fr)

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