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WO2013139161A1 - Procédé et appareil de planification de ressources dans un réseau sans fil - Google Patents

Procédé et appareil de planification de ressources dans un réseau sans fil Download PDF

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Publication number
WO2013139161A1
WO2013139161A1 PCT/CN2012/087554 CN2012087554W WO2013139161A1 WO 2013139161 A1 WO2013139161 A1 WO 2013139161A1 CN 2012087554 W CN2012087554 W CN 2012087554W WO 2013139161 A1 WO2013139161 A1 WO 2013139161A1
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WO
WIPO (PCT)
Prior art keywords
scheduling
information
base station
radio resource
terminal
Prior art date
Legal status (The legal status 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 status listed.)
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Application number
PCT/CN2012/087554
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English (en)
Chinese (zh)
Inventor
肖登坤
贺媛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
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Publication of WO2013139161A1 publication Critical patent/WO2013139161A1/fr
Anticipated expiration legal-status Critical
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10—Dynamic resource partitioning
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]

Definitions

  • the present invention generally relates to a Radio Access Technology (RAT) network, and in particular, to a method and apparatus for radio resource scheduling in a multi-RAT network.
  • RAT Radio Access Technology
  • Existing wireless networks include a variety of wireless access technologies, such as 2G, 3G, Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A), and the like.
  • 1 is a schematic diagram of an existing multi-RAT network.
  • a central controller gp
  • Radio Resource Management Equipment (RRME) 110 which is connected to the core network 100 and connected to, for example, 2G, 3G.
  • Multiple base stations BS: Base Stations
  • BS Base Stations
  • the existing radio resource management device 110 can only manage information related to handover and/or cell reselection between terminals (Terminal), for example, the radio resource management device 110 can collect information about cell capacity and load. Help the base station to determine the target cell.
  • base station 1 and base station 2 independently schedule terminal 1 and terminal 2 to allocate data transmission resources, such as time, frequency, space, power, codewords, and the like.
  • data transmission resources such as time, frequency, space, power, codewords, and the like.
  • RATI and RAT2 belong to the same access technology and may have an interface between base station 1 and base station 2, it may be caused by independent scheduling of base station 1 and base station 2.
  • Terminal 1 and terminal 2 may interfere with each other during data transmission, thereby affecting the overall throughput performance of the system.
  • a base station is also referred to as an evolved Node B (eNodeB) in an LTE system
  • a terminal is also referred to as a User Equipment (UE)
  • UE User Equipment
  • the ICIC technology is implemented by interfacing the eNodeB via the X2 interface to load information (LI: Load Information) signaling. If there is no X2 interface between adjacent eNodeBs, ICIC technology cannot be used to eliminate uplink and downlink interference between edge terminals.
  • LI load information
  • the LI signaling includes an overload indication (01: Overload Indication), a High Interference Indication (HII), and a Relative Narrowband Transmission Power (RNTP).
  • PRB Physical Resource Block
  • PRB Physical Resource Block
  • the present invention provides methods and apparatus for radio resource scheduling in a multi-RAT network.
  • a method for wireless resource scheduling in a wireless network comprising a plurality of base stations employing one or more radio access technologies, the method comprising: The plurality of base stations receive scheduling information, where the scheduling information includes information about radio resources scheduled by the plurality of base stations for the scheduled terminals served by the plurality of base stations; generating scheduling reference information, the scheduling reference information according to the scheduling information. Providing information required to be referenced when the base station schedules radio resources for the terminal it serves; and transmitting the scheduling reference information to the first one of the plurality of base stations.
  • a base station for wireless use in a wireless network a method for resource scheduling, the wireless network comprising a radio resource management device and a plurality of base stations connected to the radio resource management device using one or more radio access technologies, the method comprising: managing from the radio resource The device receives the scheduling reference information, where the scheduling reference information provides information that is required to be referenced when the base station schedules the radio resource for the first terminal served by the base station; and generates a scheduling result based on the scheduling reference information, where the scheduling result includes And the base station is information about the radio resource scheduled by the first terminal; and sending the scheduling result to the first terminal.
  • a radio resource management device for radio resource scheduling in a wireless network
  • the radio network including a plurality of base stations employing one or more radio access technologies
  • the wireless The resource management device includes: a receiver configured to receive scheduling information from the plurality of base stations, where the scheduling information includes information about radio resources scheduled by the plurality of base stations for respective scheduled terminals served by the plurality of base stations; And configured to generate scheduling reference information based on the scheduling information, where the scheduling reference information provides information that is required to be referenced when the base station schedules radio resources for the terminal it serves; and a transmitter configured to use the scheduling reference Information is sent to the first of the plurality of base stations.
  • a base station capable of performing radio resource scheduling in a wireless network
  • the wireless network including a radio resource management device and one or more radio connections connected to the radio resource management device a plurality of base stations of the technology
  • the base station comprising: a receiver configured to receive scheduling reference information from the radio resource management device, where the scheduling reference information provides scheduling for the first terminal served by the base station to perform wireless
  • a processor configured to generate a scheduling result based on the scheduling reference information, where the scheduling result includes information about a radio resource scheduled by the base station for the first terminal; and a transmitter,
  • the method is configured to send the scheduling result to the first terminal.
  • an apparatus for radio resource scheduling in a wireless network comprising a plurality of base stations employing one or more radio access technologies
  • the apparatus comprising: And a module for receiving scheduling information from the multiple base stations, where the scheduling information includes information about radio resources scheduled by the plurality of base stations for the scheduled terminals served by the plurality of base stations; and configured to generate a scheduling reference based on the scheduling information.
  • a module of information, the scheduling reference information providing information required for a base station to schedule radio resources for a terminal it serves; and transmitting the scheduling reference information to a first one of the plurality of base stations Module.
  • a base station for wireless use in a wireless network a device for resource scheduling, the wireless network comprising a radio resource management device and a plurality of base stations connected to the radio resource management device using one or more radio access technologies, the device comprising: And a module, where the resource management device receives the scheduling reference information, where the scheduling reference information provides information that is required to be used when the base station schedules the radio resource for the first terminal served by the base station, and is used to generate a scheduling result based on the scheduling reference information.
  • the scheduling result includes: information about a radio resource scheduled by the base station for the first terminal; and a module for sending the scheduling result to the first terminal.
  • a machine readable medium having stored thereon a set of instructions that, when executed, cause the machine to perform the above method.
  • the present invention is directed to the characteristics of the existing multi-RAT network, and proposes interaction scheduling information between the radio resource management device and the base station.
  • the base station may send scheduling information to the radio resource management device, and the radio resource management device may collect each base station. Scheduling information, and in an aspect, the radio resource management device may provide a proposal for scheduling radio resources to a specific base station by scheduling reference information, and on the other hand, the radio resource management device may extract scheduling information of other base stations and provide the specific information through the scheduling reference information.
  • the base station is referenced by the base station when scheduling radio resources.
  • the present invention implements the interaction between the scheduling information and the scheduling reference information between the RRC device and the base station, so that the base station can consider the scheduling situation of other base stations when scheduling the radio resources, and realize the effective allocation of resources between the base stations.
  • Resource sharing solves the problem of independent scheduling of base stations, reduces or eliminates uplink and downlink interference, improves resource utilization, and effectively avoids system throughput loss.
  • 1 is a schematic diagram of an existing multi-RAT network
  • FIG. 2 is a schematic diagram of a network for performing radio resource scheduling according to the present invention
  • FIG. 3 illustrates an exemplary flowchart for radio resource scheduling in accordance with an embodiment of the present invention
  • FIG. 4 illustrates an exemplary flow diagram for radio resource scheduling in accordance with another embodiment of the present invention
  • FIG. 5 is a schematic diagram showing scheduling in a case where base stations of different RATs are co-site base stations according to another embodiment of the present invention.
  • FIG. 6 illustrates an exemplary flow for wireless resource scheduling in accordance with another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a radio resource management device according to an embodiment of the present invention
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention
  • FIG. 9 is a schematic diagram of an apparatus for radio resource scheduling according to an embodiment of the present invention.
  • FIG. 10 shows a schematic diagram of an apparatus for radio resource scheduling in accordance with an embodiment of the present invention. detailed description
  • the present invention contemplates a problem caused by the lack of an effective direct interface between base stations and independent scheduling of base stations in existing multi-RAT networks, and proposes a radio resource management device that can effectively interact with base stations in the network.
  • the radio resource information that the base station has scheduled so that the base station can consider the radio resources that have been scheduled by each base station when scheduling the radio resources for the terminal, avoiding interference and improving resource utilization.
  • GSM Global System of Mobile Communication
  • CDMA Code Division Multiple Access
  • CDMA Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • TD-SCDMA Time Division-Synchronous Code Division Multiple Access
  • CDMA2000 Code Division Multiple Access 2000
  • GPRS General Packet Radio Service
  • LTE system LTE- A system
  • UMTS Universal Mobile Telecommunication System
  • the terminal may also be referred to as a User Equipment (UE: User Equipment), a Mobile Station (MS: Mobile Station), a Mobile Terminal (Mobile Terminal), an Access Terminal (Access Terminal), and the like.
  • the terminal can communicate with one or more core networks via a Radio Access Network (RAN).
  • RAN Radio Access Network
  • the terminal can be a mobile phone (or "cellular" phone), a computer with wireless communication capabilities, and the like.
  • the terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • the base stations to which the present invention relates may have different specific implementations under different systems, and are not limited by the examples in the following embodiments.
  • the base station may refer to a base transceiver station (BTS: Base Transceiver Station), or the base station may also refer to a base station subsystem (BSS: Base Station Subsystem), where the BSS may include BTS and Base Station Controller (BSC).
  • BTS Base Transceiver Station
  • BSS Base Station Subsystem
  • BSC Base Station Controller
  • the base station may refer to a Node B (NodeB), or the base station may also refer to a Node B and a Radio Network Controller (RNC).
  • NodeB Node B
  • RNC Radio Network Controller
  • a base station may refer to an evolved Node B (eNodeB) or an access point (AP: Access Point), such as a pico node, a femto node, a relay node, and a remote point.
  • eNodeB evolved Node B
  • AP Access Point
  • a pico node a pico node
  • femto node a pico node
  • relay node a relay node
  • RRH Wireless node
  • the RRMS 210 is respectively connected to the base station 1 and the base station 2, and the base station 1 and the base station 2 respectively serve as the serving base stations of the terminal 1 and the terminal 2 at the edge of the respective cells, and the wireless networks corresponding to the base station 1 and the base station 2 are respectively RATI.
  • RAT2. 2 exemplarily shows two base stations 1 and 2 and their respective served terminals 1 and 2, it being understood that a plurality of other base stations and terminals performing similar functions may also be included in the actual wireless network. .
  • An exemplary embodiment of the present invention for performing radio resource scheduling will be specifically described below in conjunction with the network shown in FIG.
  • FIG. 3 illustrates an exemplary flow diagram for wireless resource scheduling in accordance with an embodiment of the present invention.
  • the base station 1 and the base station 2 can respectively send scheduling information to the radio resource management device.
  • other base stations in the radio network can also send respective scheduling information to the radio resource management device.
  • the scheduling information may include information about radio resources scheduled by the base station for the scheduled terminals it serves.
  • the scheduled radio resources reflected by the scheduling information can guarantee the quality of service (QoS) of the scheduled terminals.
  • QoS quality of service
  • the scheduling information may include, for example, an allocated time resource corresponding to the scheduled terminal, an allocated frequency resource, an allocated spatial resource, an allocated codeword resource, a used transmission power, a service QoS, a transmission rate, a scheduling period, a terminal location, Information from one or more of the multipoint collaboration collections.
  • the scheduling information may also include a cell identity and a terminal identity corresponding to the scheduled terminal.
  • the scheduling information may further specifically include: information about a physical layer resource block (PRB), a multipoint cooperation set including a plurality of eNodeBs serving the UE, or a low power node, and the like.
  • the base station may periodically send scheduling information to the radio resource management device.
  • the base station may also send scheduling information based on requirements of the radio resource management device. For example, the radio resource management device may first send a request for acquiring scheduling information to the base station, and then the base station may transmit the scheduling information in response to the request.
  • the terminal corresponding to the transmitted scheduling information may be a low speed mobile terminal located at the edge of the coverage of its serving base station. It will be apparent to those skilled in the art that the location of the terminal can be determined by various techniques such as Reference Signal Receiving Power (RSRP), Beamforming, or GPS.
  • RSRP Reference Signal Receiving Power
  • Beamforming Beamforming
  • GPS GPS
  • the radio resource management device may generate scheduling reference information based on scheduling information received from a plurality of base stations (eg, base station 1, base station 2, and other base stations in the network, which may be geographically overlapping or adjacent). .
  • the scheduling reference information is generated based on the above scheduling information, and provides information that is required to be referenced when a base station (e.g., base station 1) schedules radio resources for a terminal (e.g., terminal 1) it serves.
  • the information of these references may relate to recommendations for radio resource scheduling of the base station, or information about radio resources that have been scheduled by multiple base stations in the network, and the like.
  • the radio resource management device may transmit the generated scheduling reference information to the base station.
  • the radio resource management device may send the scheduling reference information to a specific base station (for example, the base station 1) indicating that the scheduling reference information is needed, or may actively send the scheduling reference information to multiple connected to the radio resource management device, respectively.
  • Base station for example, the base station 1.
  • the base station 1 can generate a scheduling result for the terminal 1 it serves based on the scheduling reference information received from the radio resource management device.
  • the scheduling result may include information about the radio resources that the base station 1 schedules for the terminal 1.
  • the terminal 1 may be a low-speed mobile terminal located at the edge of the coverage of the base station 1.
  • the base station 1 may consider the proposal of the radio resource scheduling provided in the scheduling reference information, or consider the radio resources that have been scheduled by the plurality of base stations in the network as reflected in the scheduling reference information. Information to reduce or avoid interference, or to improve resource utilization.
  • step S350 the base station 1 may send the scheduling result to the terminal 1 to implement the radio resource scheduling for the terminal 1.
  • scheduling information of each base station may be collected at the radio resource management device, and scheduling reference information may be generated according to the scheduling information for the base station to schedule for the terminal.
  • the radio resource is referenced, so that the base station can consider the scheduling situation of other base stations when performing radio resource scheduling, reduce or avoid interference, or improve resource utilization.
  • FIG. 4 shows an exemplary flow diagram for wireless resource scheduling in accordance with another embodiment of the present invention.
  • the method shown in Fig. 4 relates to a scenario in which the radio resource management device transmits scheduling reference information to the base station 1 based on the request of the base station 1.
  • step S410 the base station 1 and the base station 2 can respectively transmit scheduling information to the radio resource management device. This step is similar to step S310 in Fig. 3.
  • the base station 1 may send a scheduling request to the radio resource management device. Specifically, the base station 1 may first select the terminal 1 to be scheduled radio resources within its coverage. For example, the terminal 1 may be a low-speed mobile terminal at the coverage edge of the base station 1; then, the base station 1 may send the terminal 1 for the terminal 1. Schedule a request.
  • the scheduling request may be a radio resource coordination request sent by the base station 1 for the terminal 1 it serves.
  • the scheduling request may include information related to the current operating conditions of the terminal 1.
  • the scheduling request may include information regarding one or more of a service QoS, a transmission rate, a used carrier, a maximum transmission power, a terminal location, and a coordinated multi-point set corresponding to the terminal 1.
  • the scheduling request may further include a cell identity and a terminal identity corresponding to the terminal 1.
  • the base station 1 may also attempt to allocate radio resources to the terminal 1 in advance, so that the scheduling request may include information about radio resources pre-allocated for the terminal 1.
  • the scheduling request may include information about pre-allocated time resources, pre-allocated frequency resources, pre-allocated spatial resources, pre-allocated codeword resources, pre-used transmit power, pre-used scheduling periods, pre-used multi-point collaboration One or more pieces of information in the collection.
  • the scheduling request may also include a cell identity and a terminal identity corresponding to the terminal 1.
  • the radio resource management device may generate scheduling reference information for the scheduling request based on scheduling information received from a plurality of base stations. Specifically, in the process of generating the scheduling reference information, the RRC device may perform the QoS of the scheduled terminal served by each of the multiple base stations according to the scheduling information of the multiple base stations and the scheduling request for the terminal 1 described above. Provides suggestions for scheduling radio resources for terminal 1. In some cases, the generation of scheduling reference information also needs to consider the ability to meet the QoS requirements of the terminal 1 itself.
  • the scheduling reference information may include information about suggestions for radio resources to be used by the terminal 1.
  • the RRC device may consider that other base stations have tuned to their respective served terminals.
  • the base station 1 is prevented from scheduling the radio resources scheduled by the other base stations for the terminal 1 and providing suggestions for the radio resources to be used by the terminal 1 in the scheduling reference information.
  • the radio resource management device may determine, according to the radio resources that the other base stations other than the base station 1 have scheduled to the respective scheduled radio resources, the radio resources, and then The information of the wireless resource is included in the scheduling reference information.
  • the radio resource management device may also consider only the neighboring base stations of the base station 1 (for example, the base station 2; usually multiple neighboring base stations) for the proximity of the base station 1 A radio resource scheduled by a scheduled terminal (e.g., terminal 2) of terminal 1.
  • the radio resource management device may suggest that the base station 1 schedule the radio resources other than the radio resources that the base station 2 has scheduled for the terminal 2 for the terminal 1.
  • the scheduling reference information may include, for example, information about the proposed time resource, the suggested frequency resource, the proposed spatial resource, the suggested codeword resource, the recommended transmit power, the recommended scheduling period, and the recommended number. Point information for one or more of the collaboration collections.
  • the scheduling reference information may also include a cell identifier and a terminal identifier corresponding to the terminal 1.
  • the total number of PRBs corresponding to the system bandwidth is 10, if the RRC determines that the PRBs of No. 6-10 have been scheduled by other eNodeBs and the PRBs of No. 1-5 have not been used by others.
  • the recommended PRB number included in the scheduling reference information sent to the eNodeB1 may be No. 1-5, thereby avoiding interference with UEs served by other eNodeBs.
  • the radio resource management device may first determine whether the pre-allocated radio resources are to be served by other base stations based on the scheduling information it receives.
  • the UE generates interference.
  • the scheduling information may include information about radio resources scheduled by the neighboring base station 2 of the base station 1 for the terminal 2 adjacent to the terminal 1 that is served by the base station 1, so that the radio resource management device may be based on the terminal indicated in the scheduling information. 2
  • the scheduled radio resources are judged whether the resources overlap or partially overlap with the radio resources pre-allocated for the terminal 1, so that it can be determined whether the scheduling of the pre-assigned radio resources for the terminal 1 may cause interference to other terminals.
  • the RRC device may include an consent indication in the scheduling reference information to indicate that the base station 1 can schedule the pre-allocated resources included in the scheduling request for the terminal 1.
  • the radio resource management device may also include information about the radio resource pre-allocated for the terminal 1 included in the scheduling request in the scheduling reference information. If the pre-allocated resource or part of it causes interference, the wireless resource The source management device may provide further suggestions based on the pre-allocated resources in the scheduling request, for example, determining the recommended radio resources different from the pre-allocated radio resources, to prevent the base station 1 from scheduling the radio resources that other base stations have scheduled. Avoid interference with terminals served by other base stations.
  • the suggested radio resources may include, for example, one of a suggested time resource, a suggested frequency resource, a suggested space resource, a suggested codeword resource, a recommended transmit power, a suggested scheduling period, and a suggested multipoint collaboration set. Or multiple.
  • the radio resource management device can include information about the suggested radio resource in the scheduling reference information.
  • the cell identifier and the terminal identifier corresponding to the terminal 1 may be included in the foregoing scheduling reference information. Taking the LTE/LTE-A system as an example, it is assumed that the pre-allocated PRB number in the scheduling request is 6-10 (assuming that the total number of PRBs corresponding to the system bandwidth is 10), gp, eNodeB1 pre-allocates the number 6-10 for UE1.
  • the RRC device may send an indication of consent in the scheduling reference information to indicate that the eNodeB1 can schedule the No. 6-10 for the UE1.
  • the PRB, or the radio resource management device may also include the PRB number 6-10 in the scheduling reference information.
  • the RRMA may include the re-proposed PRB number in the scheduling reference information, for example, No. 1-5. If interference occurs on a part of the pre-allocated PRBs No. 6-10, for example, interference occurs on the 6th-7th PRB and does not cause interference on the 8th-10th PRB, the scheduling reference information may be This includes partially agreed PRB numbers, for example, Nos. 8-10.
  • the scheduling reference information may indicate that the base station 1 attempts to use radio resources that other base stations have not scheduled to the terminals they serve.
  • FIG. 5 illustrates that a base station at a different RAT is a co-site base station according to another embodiment of the present invention.
  • RATI and RAT2 may be an LTE system and a UTRA system, respectively, where base station 1 and base station 2 may be LTE base stations.
  • the base station ⁇ and the base station 2' may be WCDMA base stations.
  • the radio resource management device 510 can use the radio resources of time, frequency, space, power, codeword, and the like to perform unified coordinated scheduling between base stations of different RATs, so as to more effectively improve the entire network. System performance. Specifically, if the load of the base station is relatively light (for example, only a small frequency resource of 5 MHz bandwidth is used), and the load of the base station 1 and the base station 2 is heavy, when the base station 1 needs to schedule the new edge terminal 1 In the case of radio resources, the base station 1 may have been unable to coordinate with the base station 2 for internal resources in the same RAT system.
  • the scheduling reference information for the terminal 1 sent by the RRC device 510 to the base station 1 may instruct the base station 1 to schedule the RAT2 (UTRA)-specific frequency resource that the base station ⁇ has not scheduled for the terminal it serves to be scheduled to be served by the base station 1.
  • the terminal 1 is such that the base station 1 employing the RATI can utilize the idle frequency resource of the base station ⁇ employing RAT2.
  • other radio resources other than frequency resources may also be used for coordinated scheduling between base stations.
  • the radio resource management device may transmit the generated scheduling reference information to the base station 1.
  • the base station 1 can generate a scheduling result based on the scheduling reference information received from the radio resource management device. For example, the base station 1 can generate a scheduling result by referring to the information of the radio resource recommended for the terminal 1 included in the scheduling reference information. It should be noted that the scheduling results can follow the recommendations in the scheduling reference information as much as possible.
  • the RRC device recommends using No. 1-5.
  • the eNodeB1 allocates the PRB to the UE1 according to the channel condition and the traffic volume (that is, in the process of generating the scheduling result), the PRB of the 1-5th should be selected as much as possible, thereby avoiding the uplink and downlink. Interference to UEs of neighboring cells.
  • the bay ijeNodeB1 should not exceed the scheduling reference information when assigning the transmit power (downlink) to the UE1.
  • the recommended transmit power value is used to reduce the downlink interference.
  • the eNodeB1 performs uplink power control on the UE1, the recommended transmit power value in the scheduling reference information should be exceeded as much as possible to reduce the uplink interference.
  • the eNodeB1 can use the multi-point cooperation set suggested in the scheduling reference information as much as possible without using a multi-point cooperation node that interferes with the UE of the neighboring cell to reduce interference on the uplink and downlink.
  • the above is only given for the LTE/LTE-A system.
  • similar processing can be performed for any other radio resources in any other RAT system to avoid the base station being the terminal. Scheduling radio resources that a plurality of base stations have scheduled to the respective served terminals.
  • step S460 the base station 1 can transmit the scheduling result to the terminal 1. This step is similar to step S350 of the figure.
  • the radio resource management device may send scheduling reference information to the station based on the request of the base station, so that the base station can obtain the radio resource suggested by the radio resource management device in time or obtain other base stations before scheduling. Information on the scheduling situation.
  • FIG. 6 illustrates an exemplary flow map for wireless resource scheduling in accordance with another embodiment of the present invention.
  • the method shown in Fig. 6 relates to a scenario in which a radio resource management device actively transmits a scheduling reference message to the base station 1.
  • step S610 the base station 1 and the base station 2 can respectively send scheduling information to the radio resource management device. This step is similar to step S310 in Fig. 3.
  • the radio resource management device may extract, from the received scheduling information, specific radio resource information that may need to be referred to when the station 1 schedules radio resources.
  • the specific radio resource information may be information about radio resources scheduled by the neighboring base station 2 of the base station 1 for the scheduled terminal 2 adjacent to the station 1 served by the station 1.
  • the radio resource management device may include the extracted radio resource information into the scheduling reference information.
  • the radio resource management device may transmit scheduling reference information to the base station 1.
  • the base station 1 can generate a scheduling result based on the scheduling reference message received from the radio resource management device. For example, the base station 1 may generate the scheduling result in consideration of not affecting the QoS of the scheduled terminals served by the plurality of base stations.
  • the base station 1 may consider the radio sources that other base stations have scheduled to the respective served terminals, and try to prevent the base station 1 from scheduling the radio resources that the other base stations have scheduled for the terminal 1. For example, since the neighboring base station 2 is configured to allocate radio resources to the terminal 2 adjacent to the base station 1 in the scheduling reference information, the base station 1 may consider avoiding using the radio resources indicated in the scheduling reference message when scheduling the radio resources for the terminal 1. .
  • step S660 the base station 1 can transmit the scheduling result to the terminal 1. This step is similar to step S350 of the figure.
  • the radio resource management device can actively send the tune information to the base station, so that the radio resource management device can according to the state of the scheduling information it receives. (for example, being updated, etc.), timely telling a certain base station that its neighboring base stations have already scheduled radio resources for neighboring terminals.
  • FIG. 7 is a block diagram showing the structure of a radio resource management device 700 according to an embodiment of the present invention.
  • the radio resource management device 700 can perform the operations of the radio resource management device described above in connection with Figs.
  • the radio resource management device 700 in FIG. 7 can effectively interact with the base station in the radio network to the radio resource information that the base station has scheduled, so that the base station can consider that multiple base stations have been scheduled when scheduling radio resources for the terminal.
  • Wireless resources to avoid interference and improve resource utilization.
  • the radio resource management device 700 can be implemented as a separate entity in a wireless network, or as a functional module in a base station or other network entity.
  • the radio resource management device proposed by the present invention may have the same hardware structure as the existing radio resource management device, and only implement the solution described in the embodiment of the present invention by upgrading the function of the existing radio resource management device.
  • some new interfaces may be defined between the radio resource management devices and between the radio resource management device and the base station, To transmit these messages.
  • the invention is not limited to these newly defined interfaces, but the transfer of these messages can also be accomplished through existing appropriate interfaces.
  • the radio resource management device 700 can include a receiver 710, a processor 720, and a transmitter 730.
  • Receiver 710 can be configured to receive scheduling information from a plurality of base stations, the scheduling information can include information regarding radio resources scheduled by the plurality of base stations for the respective scheduled terminals served by the plurality of base stations.
  • Processor 720 can be configured to generate scheduling reference information based on the scheduling information.
  • Transmitter 730 can be configured to transmit scheduling reference information to the base station for reference by the base station when scheduling radio resources for the terminals it serves.
  • multiple base stations may periodically transmit scheduling information to the radio resource management device 700, in which case the receiver 710 may be further configured to periodically receive scheduling information from a plurality of base stations.
  • multiple base stations may send scheduling information based on requirements of the radio resource management device, in which case the transmitter 730 may be further configured to send a request for acquiring scheduling information to the plurality of base stations, and Receiver 710 can be further configured for more than one The base stations receive scheduling information in response to the request.
  • the receiver 710 may further receive a scheduling request from one of the plurality of base stations, where the scheduling request may be directed by the base station 1 A radio resource coordination request issued by a terminal 1 served by it.
  • the processor 720 may be further configured to include, in the scheduling reference information, information regarding the recommendation of the radio resource to be used by the terminal 1 based on the scheduling information.
  • the processor 710 can be further configured to generate scheduling reference information in consideration of not affecting the QoS of the scheduled terminal.
  • the processor 720 may be further configured to determine, according to the radio resources scheduled by the other base stations other than the base station 1, the radio resources scheduled by the respective scheduled terminals, and include the information about the determined radio resources. Go to the scheduling reference information.
  • the processor 720 may be further configured to determine the radio access technology dedicated to the base station 2 The radio resource that the base station 2 has not scheduled to the terminal it serves, and includes information about the determined radio resource into the scheduling reference information, thereby implementing coordinated scheduling between the plurality of base stations.
  • the processor 720 may be further configured to extract, from the scheduling information, information about radio resources scheduled by the neighboring base station 2 of the base station 1 for the scheduled terminal 2 adjacent to the base station 1 served by the base station 1. And including the extracted information of the wireless resource into the scheduling reference information.
  • the transmitter 730 may be further configured to send the scheduling reference information to the base station 1 to enable the base station 1 to schedule radio resources for the terminal 1 without affecting the QoS of the respective scheduled terminals of the plurality of base stations based on the scheduling reference information. .
  • radio resource management device 700 and the receiver 710, the processor 720, and the transmitter 730 included therein can also be configured to perform any of the operations involved in the radio resource management device in the embodiments described above in connection with Figures 3-6.
  • FIG. 8 is a block diagram showing the structure of a base station 800 according to an embodiment of the present invention.
  • the base station 800 can perform the operations of the base station described above in connection with Figures 3-6.
  • base station 800 can be a base station in a multi-RAT network.
  • the multi-RAT network may also include a plurality of other base stations employing one or more radio access technologies and capable of performing similar functions as base station 800.
  • the multi-RAT network may also include a radio resource management device as described above in connection with FIG.
  • base station 800 can include a receiver 810, a processor 820, and a transmitter 830.
  • the receiver 810 can be configured to receive scheduling reference information from a radio resource management device, wherein the scheduling reference information can provide information that is required to be referenced when the base station 800 schedules radio resources for one of the terminals 1 it serves.
  • the processor 820 may be configured to generate a scheduling result based on the scheduling reference information, where the scheduling result may include information about the radio resource scheduled by the base station 800 for the terminal 1.
  • the transmitter 830 can be configured to transmit the scheduling result to the terminal 1.
  • the transmitter 810 can be further configured to transmit scheduling information to the radio resource management device, wherein the scheduling information includes information regarding radio resources scheduled by the base station 800 for the scheduled terminals it serves.
  • the transmitter 810 can be configured to periodically transmit scheduling information to the radio resource management device.
  • the base station 800 can also transmit scheduling information based on the requirements of the radio resource management device, in which case the receiver 810 can be further configured to receive a request for acquiring scheduling information from the radio resource management device, and the transmitter 830 It may be further configured to send scheduling information to the radio resource management device in response to the request.
  • the transmitter 830 may be further configured to send a scheduling request to the radio resource management device, where the scheduling request is for the base station 800 A radio resource coordination request issued by the terminal 1.
  • the scheduling reference information may include information about a proposal for the radio resource to be used by the terminal 1 generated by the radio resource management device based on the scheduling information received from the plurality of base stations, wherein the scheduling information may include more information about The base stations are information of radio resources scheduled by the scheduled terminals that they serve.
  • the scheduling reference information is generated in consideration of not affecting the QoS of the scheduled terminal.
  • the scheduling reference information may include information about radio resources different from the radio resources scheduled by the other base stations other than the base station 1 to the scheduled terminals of the respective services.
  • the scheduling reference information may include a radio access technology specific to the base station 2, and the base station 2 has not yet The information of the radio resources scheduled by the serving terminal thereof, thereby achieving coordinated scheduling between multiple base stations.
  • the scheduling reference information received by the receiver 810 may include the neighboring base station 2 for which the neighboring base station 2 is served, which is extracted by the radio resource management device from the scheduling information received by the plurality of base stations. a message of a radio resource scheduled by the scheduled terminal 2 of the base station 1
  • the scheduling information includes information about radio resources scheduled by the plurality of base stations for the scheduled terminals served by the respective base stations.
  • the processor 820 can be further configured to generate a scheduling result in consideration of QoS that does not affect the scheduled terminals of the plurality of base stations.
  • base station 800 and its included receiver 810, processor 820, and transmitter 830 can also be configured to perform any of the operations involved in the base station in the embodiments described above in connection with Figures 3-1.
  • FIG. 9 shows a schematic diagram of an apparatus 900 for radio resource scheduling in a wireless network, in accordance with an embodiment of the present invention.
  • apparatus 900 can include: means 910 for receiving scheduling information from a plurality of base stations in a wireless network, wherein the scheduling information can include scheduling with respect to scheduled terminals served by a plurality of base stations for respective ones Information of a radio resource; a module 920 for generating scheduling reference information based on scheduling information, where the scheduling reference information provides information required for a base station to schedule radio resources for a terminal it serves; and is used for scheduling reference information
  • a module 930 that is sent to one of a plurality of base stations.
  • apparatus 900 can also include a plurality of functional modules for performing various operations of the radio resource management device described above in connection with Figures 3-6, respectively.
  • FIG. 10 shows a schematic diagram of an apparatus 1000 for wireless resource scheduling in a wireless network, in accordance with an embodiment of the present invention.
  • the apparatus 1000 may include: a module 1010 for receiving scheduling reference information from a radio resource management device in a wireless network, wherein the scheduling reference information provides for scheduling radio resources at the terminal 1 for which the base station 1 serves Information required for reference; a module 1020 for generating a scheduling result based on scheduling reference information, where the scheduling result may include information about radio resources scheduled by the base station 1 for the terminal 1; and for transmitting the scheduling result to The module 1030 of the first terminal.
  • apparatus 1000 may also include a plurality of functional modules for performing various operations of the base station described above in connection with Figures 3-6, respectively.
  • the various aspects described herein can be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof.
  • the devices and/or methods are implemented using software, firmware, middleware, microcode, program code or code segments, they can be stored in a machine readable medium, for example, in a storage unit.
  • the techniques described herein can be implemented with modules (e.g., programs, functions, etc.) that implement the functionality described herein.
  • the software code can be stored in a memory unit and executed by the processor.
  • the memory unit can be implemented in the processor or can be external to the processor. In the latter case, the memory can be connected to the processor by various means.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Selon des modes de réalisation, la présente invention concerne un procédé et un appareil de planification de ressources radio dans un réseau sans fil. Selon la présente invention, un dispositif de gestion de ressources radio peut recevoir des informations de planification de la part de multiples stations de base dans un réseau sans fil, générer des informations de référence de planification selon les informations de planification, et envoyer les informations de référence de planification à une station de base parmi les multiples stations de base, de façon à ce que la station de base puisse tenir compte des ressources radio qui ont été planifiées par de multiples stations de base. Dans la présente invention, le dispositif de gestion de ressources radio peut efficacement échanger avec les multiples stations de base des informations des ressources sans fil qui ont été planifiées par les stations de base, ce qui permet de mettre en œuvre une attribution de ressources efficace et de partager des ressources entre des stations de base des multiples technologies d'accès radio, de résoudre le problème de planification indépendante de stations de base, de réduire ou de supprimer une interférence de liaison montante et de liaison descendante, d'améliorer l'utilisation des ressources, et d'éviter efficacement une perte du débit du système.
PCT/CN2012/087554 2012-03-23 2012-12-26 Procédé et appareil de planification de ressources dans un réseau sans fil Ceased WO2013139161A1 (fr)

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CN106937326B (zh) * 2015-12-29 2020-04-14 上海无线通信研究中心 基站间协调传输方法和第一基站
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EP3537819B1 (fr) 2017-03-31 2021-10-20 CloudMinds (Shanghai) Robotics Co., Ltd. Procédé de planification de ressources et station de base
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