WO2012149782A1 - 小区间切换的方法、基站及系统 - Google Patents

小区间切换的方法、基站及系统 Download PDF

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Publication number
WO2012149782A1
WO2012149782A1 PCT/CN2011/080376 CN2011080376W WO2012149782A1 WO 2012149782 A1 WO2012149782 A1 WO 2012149782A1 CN 2011080376 W CN2011080376 W CN 2011080376W WO 2012149782 A1 WO2012149782 A1 WO 2012149782A1
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WO
WIPO (PCT)
Prior art keywords
base station
bandwidth
handover
user equipment
interference coordination
Prior art date
Application number
PCT/CN2011/080376
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English (en)
French (fr)
Inventor
解应春
Original Assignee
华为技术有限公司
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.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201180001805.2A priority Critical patent/CN102388650B/zh
Priority to PCT/CN2011/080376 priority patent/WO2012149782A1/zh
Priority to EP11864802.1A priority patent/EP2713655A4/en
Publication of WO2012149782A1 publication Critical patent/WO2012149782A1/zh
Priority to US14/226,158 priority patent/US20140206356A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/16Performing reselection for specific purposes
    • H04W36/20Performing reselection for specific purposes for optimising the interference level
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0072Transmission or use of information for re-establishing the radio link of resource information of target access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/24Reselection being triggered by specific parameters
    • H04W36/249Reselection being triggered by specific parameters according to timing information

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a base station, and a system for inter-cell handover.
  • LTE long term evolution, 3GPP long term evolution
  • 0FDMA Orthogonal Frequency Division Multiple Access
  • the intra-cell interference in the system is small, but the interference between cells cannot be ignored.
  • the neighboring area (UE) of the UE (user equipment) at the edge of the cell is particularly severe when it is switched between neighboring cells.
  • ICIC inter-eel 1 interference coordination
  • LTE Long Term Evolution
  • ICIC technology is a technology closely combined with scheduling and power control.
  • the services that cause large interference to neighboring cells are limited to the edge bands orthogonal to the neighboring cells.
  • the inter-cell edge frequency bands are not interfered with each other, thereby improving the throughput rate of the cell edge users and improving the system coverage capability.
  • the inventors have found that at least the following problems exist in the prior art:
  • the ICIC technology may be used to enable the UE to exchange handover signaling with the base station during handover. Or the packet is fragmented, resulting in a lower handover success rate.
  • the embodiments of the present invention provide a method, a base station, and a system for inter-cell handover.
  • the UE performs handover between cells, the neighboring area interference generated by the UE can be reduced, the handover success rate is improved, and the switching user data is reduced. Line delay.
  • the embodiment of the present invention provides a method for inter-cell handover, including: transmitting, by using a source cell handover bandwidth, a handover command to a user equipment, to indicate that the user equipment is handed over from a source base station to a target base station;
  • interference coordination is performed on the target cell handover bandwidth to reduce interference to the user equipment.
  • the embodiment of the present invention further provides a method for inter-cell handover, including: performing interference coordination on a source cell handover bandwidth when the user equipment exchanges signaling with the source base station;
  • the interference coordination of the source cell handover bandwidth is stopped
  • the handover of the user equipment from the source base station to the target base station is completed by the target cell handover bandwidth and the user equipment exchange handover signaling.
  • the embodiment of the present invention further provides a base station, including:
  • a first sending module configured to send, by using a source cell handover bandwidth, a handover command to the user equipment, to indicate that the user equipment is handed over from the current base station to the target base station;
  • the first processing module is configured to perform interference coordination on the target cell handover bandwidth when the user equipment exchanges signaling with the target base station through the target cell handover bandwidth, so as to reduce interference of the current base station to the user equipment.
  • an embodiment of the present invention further provides a base station, including:
  • a second processing module configured to perform interference coordination on a source cell handover bandwidth when the user equipment exchanges signaling with the source base station
  • a third processing module configured to: when the user equipment completes the handover signaling interaction with the source base station, instructing the current base station to stop interference coordination on the source cell handover bandwidth;
  • the switching module is configured to exchange switching signaling with the user equipment by using the target cell switching bandwidth, and complete handover of the user equipment from the source base station to the current base station.
  • an embodiment of the present invention further provides a system for inter-cell handover, including the foregoing base station.
  • the method, the base station, and the system for the inter-cell handover provided by the embodiment of the present invention when the user equipment and the source base station switch the bandwidth exchange switching signaling by using the source cell, the target base station performs interference coordination on the source cell handover bandwidth to reduce the user equipment.
  • the neighboring area interferes; when the user equipment and the target base station switch the bandwidth exchange switching signaling through the target cell, the source base station performs interference coordination on the target cell handover bandwidth to reduce the neighboring area interference to the user equipment.
  • the embodiment of the present invention can reduce the neighboring cell interference generated by the neighboring cell base station to the user equipment when the user equipment performs the inter-cell handover, improve the handover success rate, and reduce the uplink and downlink delay of switching the user data.
  • FIG. 1 is a schematic flowchart of a method according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic flowchart of a method according to Embodiment 2 of the present invention.
  • FIG. 3 is a schematic flowchart of a method according to Embodiment 3 of the present invention.
  • FIG. 6 are structural structural diagrams of a base station according to Embodiment 4 of the present invention.
  • FIG. 7 and FIG. 8 are structural diagrams of a base station according to Embodiment 5 of the present invention.
  • An embodiment of the present invention provides a method for inter-cell handover. As shown in FIG. 1, the method includes: 1 01.
  • the source base station sends a handover command to the UE by using the source cell handover bandwidth to instruct the UE to switch from the source base station to the target base station.
  • the source base station When the UE exchanges handover signaling with the target base station through the target cell handover bandwidth, the source base station performs interference coordination on the target cell handover bandwidth to reduce interference to the UE.
  • the source cell handover bandwidth and the target cell handover bandwidth may be pre-agreed by the source base station and the target base station, or may be set in the network planning layout, but is not limited thereto.
  • the source cell handover bandwidth is used by the source base station and the UE to transmit handover signaling
  • the target cell handover bandwidth is used for the target base station to transmit handover signaling to the UE.
  • the source cell handover bandwidth includes the source cell uplink handover bandwidth and the source cell downlink handover.
  • Bandwidth, target cell handover bandwidth includes target cell uplink handover bandwidth and target cell downlink handover bandwidth.
  • the inter-cell handover includes intra-cell handover and inter-cell handover.
  • the source base station and the target base station are the same base station.
  • the UE may exchange data with the source base station and the target base station, and may exchange data with the source base station and the target base station, which is not limited herein.
  • the source base station when the UE and the target base station switch the bandwidth switching signaling through the target cell, the source base station performs interference coordination on the target cell handover bandwidth to reduce neighboring cell interference to the UE.
  • the method provided by the embodiment of the present invention can reduce the neighboring cell interference generated by the source base station to the UE when the UE performs inter-cell handover, improve the handover success rate, and reduce the uplink and downlink delay of switching user data.
  • An embodiment of the present invention provides a method for inter-cell handover. As shown in FIG. 2, the method includes:
  • the target base station performs interference coordination on the source cell handover bandwidth.
  • the target base station stops the interference coordination of the source cell handover bandwidth.
  • the target base station performs handover of the UE from the source base station to the target base station by using the target cell handover bandwidth and the UE to exchange handover signaling.
  • the source cell handover bandwidth and the target cell handover bandwidth may be pre-agreed by the source base station and the target base station, or may be set in the network planning layout, but is not limited thereto.
  • the source cell handover bandwidth is used by the source base station and the UE to transmit handover signaling
  • the target cell handover bandwidth is used for the target base station to transmit handover signaling to the UE.
  • the source cell handover bandwidth includes the source cell uplink handover bandwidth and the source cell downlink handover.
  • Bandwidth, target cell handover bandwidth includes target cell uplink handover bandwidth and target cell downlink handover bandwidth.
  • the inter-cell handover includes intra-cell handover and inter-cell handover.
  • the source base station and the target base station are the same base station.
  • the UE may exchange data with the source base station and the target base station, and may exchange data with the source base station and the target base station, which is not limited herein.
  • the target base station when the UE and the source base station switch the bandwidth switching signaling through the source cell, the target base station performs interference coordination on the source cell handover bandwidth to reduce the neighboring cell interference to the UE.
  • the method provided by the embodiment of the present invention can reduce the neighboring cell interference generated by the target base station to the UE when the UE performs the small-area handover, improve the handover success rate, and reduce the uplink and downlink delay of switching the user data.
  • An embodiment of the present invention provides a method for inter-cell handover. As shown in FIG. 3, the method includes:
  • the source base station receives a measurement report sent by the UE, where the measurement report is used to determine a target base station.
  • the source base station sends a handover r e s t (switching request) message to the target base station according to the measurement report and the RRM (radio e s our ce mana gemen t, radio resource management) information; or
  • the source base station sends a handover request message to the core network according to the measurement report and the RRM information.
  • the handover request message is forwarded by the core network to the target base station.
  • the target base station receives the handover request message, and sends a response message about the handover request message to the source base station;
  • the target base station After receiving the handover request message, the target base station sends a response message to the core network about the handover request message, and the core network forwards the response message to the source base station.
  • the target base station sets a second preset time, and performs interference coordination on the source cell handover bandwidth in the second preset time, so as to reduce the target base station to the UE neighboring area when the UE and the source base station exchange handover signaling. interference.
  • the second preset time is a time that the UE can complete the handover signaling interaction with the source base station.
  • the target base station may set the second preset time by using a timer, or may be set by other timing methods, which is not limited herein.
  • the source cell handover bandwidth and the target cell handover bandwidth may be pre-agreed by the source base station and the target base station, or may be set in the network planning layout, but is not limited thereto.
  • the source cell handover bandwidth is used by the source base station and the UE to transmit handover signaling
  • the target cell handover bandwidth is used for the target base station and the UE to transmit handover signaling.
  • the source cell handover bandwidth includes the source cell uplink handover bandwidth and the source cell.
  • the target cell handover bandwidth includes a target cell uplink handover bandwidth and a target cell downlink handover bandwidth.
  • the interference coordination of the target cell to the source cell handover bandwidth includes: the target base station does not perform scheduling within the source cell handover bandwidth; or
  • the target base station reduces power within the source cell handover bandwidth for scheduling.
  • the source base station sends a handover command to the UE by using the source cell handover bandwidth, so that the UE switches from the source base station to the target base station.
  • the handover signaling between the source base station and the UE may be performed by one or more RBs (res our ce bl ocks) in the source cell handover bandwidth, where the RB is the minimum scheduling unit in the handover process. .
  • the multiple RBs may be continuous or discrete, and are not limited herein. 306.
  • the source base station sets a first preset time, and performs interference coordination on the target cell handover bandwidth in the first preset time, so that the UE reduces the signaling by using the target cell handover bandwidth and the target base station to exchange handover signaling.
  • the source base station interferes with the neighboring area of the UE.
  • the first preset time is a time that the UE can complete the handover signaling interaction with the target base station.
  • the source base station may set the first preset time by using a timer, or may be set by other timing methods, which is not limited herein.
  • the source base station performs interference coordination on the target cell handover bandwidth, where: the source base station does not perform scheduling within the target cell handover bandwidth; or
  • the source base station reduces power within the target cell handover bandwidth for scheduling.
  • the UE is separated from the source base station, starts to access the target base station, and sends a random access preamble (random access sequence 1 J ) to the target base station.
  • a random access preamble random access sequence 1 J
  • the target base station After receiving the random access preamble sent by the UE, the target base station stops interference coordination on the source cell handover bandwidth.
  • the target base station stops the interference coordination of the source cell handover bandwidth after reaching the second preset time.
  • the target base station sets a second preset time by using a timer
  • the timer can be turned off after step 308.
  • the target base station sends random access response (snap access response) information to the UE by using a target cell handover bandwidth.
  • the UE sends a handover confirm message to the target base station by using the target cell handover bandwidth, to indicate that the handover of the target base station UE side is completed.
  • the source base station stops the interference coordination of the target cell handover bandwidth.
  • the source base station stops the interference coordination of the handover bandwidth of the target cell after the first preset time is reached. If the source base station sets a first preset time by using a timer, it may be closed after step 311. Close the timer.
  • the source base station can perform but is not limited to the following operations:
  • the source base station forwards the cached data about the UE to the target base station;
  • the source base station receives an end ma rke r (end tag) message sent by the serving gateway, and sends the end ma rke r message to the target base station; and/or
  • the source base station receives a command from the target base station to send r e ea s e re s our ce s (release resources), and releases the resources of the UE according to the command.
  • the source base station may stop interference coordination on the handover bandwidth of the target cell after performing the foregoing operations, that is,
  • the source base station may stop interference coordination of the target cell handover bandwidth when forwarding the buffered data about the UE;
  • the source base station may stop the interference coordination of the handover bandwidth of the target cell after receiving the end ma rke r sent by the serving gateway; or
  • the source base station may stop interference coordination on the target cell handover bandwidth when the resources of the UE are released.
  • the source base station when the UE exchanges the signaling with the target base station through the target cell handover bandwidth, the source base station performs interference coordination on the target cell handover bandwidth to reduce the neighboring cell interference to the UE.
  • the target cell handover bandwidth includes a source cell uplink handover bandwidth and a source cell downlink handover bandwidth.
  • the target base station performs interference coordination on the source cell handover bandwidth to reduce the neighboring region of the UE.
  • the source cell handover bandwidth includes a source cell uplink handover bandwidth and a source cell downlink handover bandwidth.
  • the source base station may perform interference coordination only on the uplink handover bandwidth of the target cell, or may perform interference coordination only on the downlink bandwidth of the target cell; Interference coordination may be performed only on the uplink handover bandwidth of the source cell, or interference coordination may be performed only on the downlink handover bandwidth of the source cell.
  • the source cell is used by the UE and the source base station
  • the target base station performs interference coordination on the source cell handover bandwidth to reduce the neighboring area interference to the UE.
  • the target base station switches the bandwidth to the target cell.
  • Interference coordination is performed to reduce neighboring interference to the UE.
  • the embodiment of the present invention can reduce the neighboring area interference generated by the neighboring base station to the UE when the UE performs inter-cell handover, improve the handover success rate, and reduce the uplink and downlink delay of switching user data.
  • the embodiment of the present invention provides a base station, which can be used in the method of the source base station in the foregoing method embodiment.
  • the base station includes:
  • the first sending module 401 is configured to send a handover command to the UE by using a source cell handover bandwidth, to indicate that the UE switches from the current base station to the target base station;
  • the first processing module 402 is configured to: when the UE exchanges signaling with the target base station by using the target cell handover bandwidth, perform interference coordination on the target cell handover bandwidth to reduce interference of the current base station to the UE.
  • the first processing module 402 is further configured to control, by the current base station, the uplink switching bandwidth of the target cell to perform interference coordination; or
  • the first processing module 402 is further configured to control, by the current base station, downlink switching bandwidth in the target cell to perform interference coordination; or
  • the first processing module 402 is further configured to control, by the current base station, the uplink switching bandwidth of the target cell and the downlink switching bandwidth of the target cell to perform interference coordination.
  • the first processing module 402 includes: a first processing unit 4021 and/or a second processing unit 4022, where:
  • the first processing unit 4021 is configured to indicate that the current base station does not perform scheduling within the target cell handover bandwidth
  • the second processing unit 4022 is configured to indicate that the current base station reduces power within the target cell handover bandwidth for scheduling. Further, as shown in FIG. 6, the first processing module 402 further includes a third processing unit 4023, where the third processing unit 4023 is configured to: when the UE handover is completed, instruct the current base station to stop interference on the target cell handover bandwidth. coordination.
  • the third processing unit 4023 is further configured to: when the base station forwards the cached data of the UE, instruct the current base station to stop interference coordination on the target cell handover bandwidth; or
  • the third processing unit 4023 is further configured to: when receiving the End Marker sent by the serving gateway, instruct the current base station to stop interference coordination on the target cell handover bandwidth; or
  • the third processing unit 4023 is further configured to: when the base station releases the resources of the UE, instruct the current base station to stop interference coordination on the target cell handover bandwidth; or
  • the third processing unit 4023 is further configured to: when the base station receives the UE context release (message device release) message sent by the target base station, instruct the current base station to stop interference coordination on the target cell handover bandwidth.
  • UE context release messages device release
  • the third processing unit 4023 is further configured to: when the first preset time is reached, instruct the current base station to stop the interference coordination of the target cell handover bandwidth, where the first preset time is the user
  • the device is capable of completing the time of handover signaling interaction with the target base station.
  • the first processing module 402 when the UE and the target base station switch the bandwidth exchange switching signaling through the target cell, the first processing module 402 performs interference coordination on the target cell handover bandwidth to reduce the neighboring cell interference to the UE.
  • the base station provided by the embodiment of the present invention can reduce the neighboring cell interference generated by the source base station to the UE when the UE performs inter-cell handover, improve the switching success rate, and reduce the uplink and downlink delay of switching user data.
  • the embodiment of the present invention provides a base station, which can implement the method of the target base station side in the foregoing method embodiment.
  • the base station includes:
  • the second processing module 701 is configured to perform interference coordination on the source cell handover bandwidth when the UE exchanges signaling with the source base station;
  • the third processing module 702 is configured to: when the UE completes the handover signaling interaction with the source base station, instruct the current base station to stop interference coordination on the source cell handover bandwidth;
  • the switching module 703 is configured to perform handover of the UE from the source base station to the current base station by using the target cell handover bandwidth to exchange handover signaling with the UE.
  • the second processing module 701 is configured to perform interference coordination on the uplink handover bandwidth of the source cell;
  • the second processing module 701 is further configured to perform interference coordination on the downlink handover bandwidth of the source cell, or the second processing module 701 is further configured to perform interference coordination on the source cell uplink handover bandwidth and the source cell downlink handover bandwidth.
  • the second processing module 701 includes a fourth processing unit 7011 and/or a fifth processing unit 7012, where:
  • the fourth processing unit 7011 is configured to indicate that the current base station does not perform scheduling within the source cell handover bandwidth
  • the fifth processing unit 7012 is configured to indicate that the current base station reduces power within the source cell handover bandwidth for scheduling.
  • the third processing module 702 is further configured to: when receiving the random access preamble sent by the UE, instruct the current base station to stop interference coordination on the source cell handover bandwidth.
  • the third processing module 702 is further configured to: when the second preset time is reached, instruct the current base station to stop the interference coordination of the source cell handover bandwidth, where the second preset time is that the user equipment can complete The time of switching the signaling interaction between the source base stations.
  • the second processing module 701 performs interference coordination on the source cell handover bandwidth to reduce the neighboring cell interference to the UE.
  • the embodiment of the present invention can reduce the neighboring cell interference generated by the target base station to the UE when the UE performs the small-area handover, improve the handover success rate, and reduce the uplink and downlink delay of switching user data.
  • the embodiment of the present invention further provides a system for inter-cell handover, including the base station illustrated in FIG. 4 to FIG. 6 and the base station illustrated in FIG. 7 and FIG. 8, when the UE performs small between the source base station and the target base station.
  • the inter-area handover the neighboring area interference of the UE can be reduced.
  • the inter-cell handover includes intra-cell handover and inter-base-cell handover.
  • the source base station and the target base station are the same base station.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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Description

小区间切换的方法、 基站及系统 技术领域
本发明涉及通信技术领域, 尤其涉及一种小区间切换的方法、基站及 系统。
背景技术
在无线通信技术领域, LTE (long term evolution, 3GPP 长期演进) 系统是通信技术发展的主要趋势。 LTE 系统采用 0FDMA ( orthogonal frequency division multiple access, 正交频分多址) 为多址接入方式 构建蜂窝移动通信网络, 其系统中的小区内干扰很小, 但小区间的干扰不 可忽视。 尤其是处于小区边缘的 UE ( user equipment, 用户设备) 在相 邻小区间进行切换时所受到的邻区干扰尤为严重。
目前采用 ICIC (inter - eel 1 interference coordination, 小区间干 扰协调)技术减小 LTE系统中各小区间的邻区干扰。 ICIC技术是一种与调 度、 功控紧密结合的技术, 通过对频率资源和功率资源的分配加以限制, 把对邻区产生较大干扰的业务限制在与邻区互相正交的边缘频带上,使得 小区间的边缘频带互不干扰,从而提高小区边缘用户的吞吐率和提高系统 覆盖能力。
在实现本发明的过程中, 发明人发现现有技术中至少存在如下问题: 当相邻小区较多导致邻区干扰较大时,采用 ICIC技术可能使得 UE在切换 期间和基站交互的切换信令或数据包被分片, 导致切换成功率较低。
发明内容
本发明的实施例提供一种小区间切换的方法、 基站及系统, 当 UE在 小区间进行切换时, 能够减少对所述 UE产生的邻区干扰, 提高切换成功 率, 减少切换用户数据的上下行时延。
为达到上述目的, 本发明的实施例采用如下技术方案: 一方面, 本发明实施例提供了一种小区间切换的方法, 包括: 通过源小区切换带宽向用户设备发送切换命令,以指示该用户设备从 源基站切换至目标基站;
当用户设备通过目标小区切换带宽与目标基站交互切换信令时,对目 标小区切换带宽进行干扰协调, 以减少对该用户设备的干扰。
另一方面, 本发明实施例还提供了一种小区间切换的方法, 包括: 当用户设备与源基站交互切换信令时,对源小区切换带宽进行干扰协 调;
在用户设备完成与源基站之间切换信令交互的情况下,停止对源小区 切换带宽的干扰协调;
通过目标小区切换带宽与用户设备交互切换信令,完成该用户设备从 源基站到目标基站的切换。
再一方面, 本发明实施例还提供了一种基站, 包括:
第一发送模块, 用于通过源小区切换带宽向用户设备发送切换命令, 以指示该用户设备从当前基站切换至目标基站;
第一处理模块,用于当用户设备通过目标小区切换带宽与目标基站交 互切换信令时, 对目标小区切换带宽进行干扰协调, 以减少当前基站对用 户设备的干扰。
又一方面, 本发明实施例还提供了一种基站, 包括:
第二处理模块, 用于当用户设备与源基站交互切换信令时, 对源小区 切换带宽进行干扰协调;
第三处理模块,用于在用户设备完成与源基站之间切换信令交互的情 况下, 指示当前基站停止对源小区切换带宽的干扰协调;
切换模块, 用于通过目标小区切换带宽与用户设备交互切换信令, 完 成该用户设备从源基站到当前基站的切换。
另一方面, 本发明实施例还提供了一种小区间切换的系统, 包括上述 基站。 本发明实施例提供的小区间切换的方法、基站及系统, 在用户设备与 源基站通过源小区切换带宽交互切换信令时, 目标基站对源小区切换带宽 进行干扰协调以减少对该用户设备的邻区干扰;在用户设备与目标基站通 过目标小区切换带宽交互切换信令时,源基站对所述目标小区切换带宽进 行干扰协调, 以减少对该用户设备的邻区干扰。 与现有技术相比, 本发明 实施例能够在用户设备进行小区间切换时减少邻区基站对该用户设备产 生的邻区干扰,提高切换成功率,并能够减少切换用户数据的上下行时延。 附图说明 实施例或现有技术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,对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1为本发明实施例 1提供的方法的流程示意图;
图 2为本发明实施例 2提供的方法的流程示意图;
图 3为本发明实施例 3提供的方法的流程示意图;
图 4至图 6为本发明实施例 4提供的基站的结构框图;
图 7、 图 8为本发明实施例 5提供的基站的结构框图。
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, 本领域普通技术人员在没 有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的 范围。
实施例 1
本发明实施例提供了一种小区间切换的方法, 如图 1所示, 所述方法 包括: 1 01、 源基站通过源小区切换带宽向 UE发送切换命令, 以指示 UE从 源基站切换至目标基站。
1 02、 当 UE通过目标小区切换带宽与目标基站交互切换信令时, 源基 站对目标小区切换带宽进行干扰协调, 以减少对 UE的干扰。
其中,源小区切换带宽和目标小区切换带宽可以由源基站与目标基站 预先约定, 也可以在网络规划布局中进行设置, 但不仅限于此。 源小区切 换带宽用于供源基站与 UE传输切换信令, 目标小区切换带宽用于供目标 基站与 UE传输切换信令; 具体的, 源小区切换带宽包括源小区上行切换 带宽和源小区下行切换带宽, 目标小区切换带宽包括目标小区上行切换带 宽和目标小区下行切换带宽。
值得说明的是,所述小区间切换包括基站内小区间切换和基站间小区 间切换。 当 UE在基站内进行小区间切换时, 所述源基站与目标基站为同 一基站。 UE 在进行小区间切换的过程中, 除了与源基站和目标基站交互 切换信令, 也可能与源基站和目标基站交互数据, 此处不做限定。
本发明实施例提供的方法, 在 UE与目标基站通过目标小区切换带宽 交互切换信令时, 源基站对所述目标小区切换带宽进行干扰协调, 以减少 对所述 UE的邻区干扰。 与现有技术相比, 本发明实施例提供的方法能够 在 UE进行小区间切换时减少源基站对 UE产生的邻区干扰,提高切换成功 率, 并能够减少切换用户数据的上下行时延。 实施例 2
本发明实施例提供了一种小区间切换的方法, 如图 2所示, 所述方法 包括:
2 01、 当 UE与源基站交互切换信令时, 目标基站对源小区切换带宽进 行干扰协调。
2 02、 在 UE完成与源基站之间切换信令交互的情况下, 目标基站停止 对源小区切换带宽的干扰协调。 2 03、 目标基站通过目标小区切换带宽与 UE 交互切换信令, 完成 UE 从源基站到目标基站的切换。
其中,源小区切换带宽和目标小区切换带宽可以由源基站与目标基站 预先约定, 也可以在网络规划布局中进行设置, 但不仅限于此。 源小区切 换带宽用于供源基站与 UE传输切换信令, 目标小区切换带宽用于供目标 基站与 UE传输切换信令; 具体的, 源小区切换带宽包括源小区上行切换 带宽和源小区下行切换带宽, 目标小区切换带宽包括目标小区上行切换带 宽和目标小区下行切换带宽。
值得说明的是,所述小区间切换包括基站内小区间切换和基站间小区 间切换。 当 UE在基站内进行小区间切换时, 所述源基站与目标基站为同 一基站。 UE 在进行小区间切换的过程中, 除了与源基站和目标基站交互 切换信令, 也可能与源基站和目标基站交互数据, 此处不做限定。
本发明实施例提供的方法, 在 UE与源基站通过源小区切换带宽交互 切换信令时, 目标基站对源小区切换带宽进行干扰协调以减少对所述 UE 的邻区干扰。 与现有技术相比, 本发明实施例提供的方法能够在 UE进行 小区间切换时减少目标基站对 UE产生的邻区干扰, 提高切换成功率, 减 少切换用户数据的上下行时延。 实施例 3
本发明实施例提供了一种小区间切换的方法, 如图 3所示, 所述方法 包括:
301、 源基站接收 UE发送的测量报告, 所述测量报告用于确定目标基 站。
302、 源基站根据所述测量报告以及 RRM ( rad i o r e s our ce mana gemen t , 无线资源管理 )信息向目标基站发送 handover r eque s t (切 换请求) 消息; 或者
源基站根据所述测量报告以及 RRM信息向核心网发送切换请求消息, 由核心网将该切换请求消息转发至目标基站。
303、 目标基站接收所述切换请求消息, 向源基站发送关于该切换请 求消息的应答消息; 或者
目标基站接收所述切换请求消息后,向核心网发送关于该切换请求消 息的应答消息, 由所述核心网将该应答消息转发至源基站。
304、 目标基站设定第二预设时间, 在所述第二预设时间内对源小区 切换带宽进行干扰协调, 从而在 UE与源基站交互切换信令时, 减少目标 基站对 UE的邻区干扰。 其中, 所述第二预设时间为 UE能够完成与源基站 之间切换信令交互的时间。
具体的, 目标基站可以通过定时器设定第二预设时间, 也可以通过其 他的计时方式进行设定, 此处不做限定。
值得说明的是,所述源小区切换带宽和目标小区切换带宽可以由源基 站和目标基站预先约定,或者在网络规划布局中进行设置,但不仅限于此。 其中, 源小区切换带宽用于供源基站与 UE传输切换信令, 目标小区切换 带宽用于供目标基站与 UE传输切换信令; 具体的, 源小区切换带宽包括 源小区上行切换带宽和源小区下行切换带宽, 目标小区切换带宽包括目标 小区上行切换带宽和目标小区下行切换带宽。
具体的, 目标基站对源小区切换带宽进行干扰协调包括: 目标基站在 源小区切换带宽内不进行调度; 或者
目标基站在源小区切换带宽内降低功率进行调度。
305、 在目标基站对源小区切换带宽进行干扰协调的情况下, 源基站 通过源小区切换带宽向 UE发送切换命令,以使 UE从源基站切换到目标基 站。
具体的, 源基站与 UE之间的切换信令可以通过源小区切换带宽中的 一个或多个 RB ( r e s our ce b l ock , 资源块) 进行交互, 所述 RB是切换过 程中的最小调度单位。 其中, 当 UE通过多个 RB进行切换调度时, 所述多 个 RB可以是连续的, 也可以是离散的, 此处不做限定。 306、 源基站设定第一预设时间, 在所述第一预设时间内对目标小区 切换带宽进行干扰协调, 从而在 UE通过目标小区切换带宽与目标基站交 互切换信令的过程中, 减少源基站对 UE的邻区干扰。 其中, 所述第一预 设时间为 UE能够完成与目标基站之间切换信令交互的时间。
具体的, 源基站可以通过定时器设定第一预设时间, 也可以通过其他 的计时方式进行设定, 此处不做限定。
具体的, 源基站对目标小区切换带宽进行干扰协调包括: 源基站在目 标小区切换带宽内不进行调度; 或者
源基站在目标小区切换带宽内降低功率进行调度。
307、 UE 从源基站分离, 开始接入到目标基站, 并向目标基站发送 random access preamble (随机接入序歹1 J )。
308、 目标基站接收到 UE发送的 random access preamble后, 停止 对源小区切换带宽的干扰协调。
值得说明的是, 当 UE向目标基站切换失败, 无法发送 random access preamble 时, 则目标基站在到达第二预设时间后停止对源小区切换带宽 的干扰协调。
值得一提的, 如果目标基站采用定时器设定第二预设时间, 则可以在 步骤 308之后关闭该定时器。
309、 目标基站通过目标小区切换带宽向所述 UE发送 random access response (随机接入响应 ) 信息。
310、 UE 通过目标小区切换带宽向目标基站发送 handover confirm (切换确认) 消息, 以指示目标基站 UE侧的切换已完成。
311、 源基站在 UE完成向目标基站的切换后, 停止对目标小区切换带 宽的干扰协调。
值得说明的是, 当 UE在切换过程中发生错误, 无法完成切换时, 则 源基站在到达第一预设时间后, 停止对目标小区切换带宽的干扰协调。 其 中, 如果源基站采用定时器设定第一预设时间, 则可以在步骤 311之后关 闭该定时器。
值得说明的是, UE 由源基站切换到目标基站之后, 源基站可以执行 但不限于如下操作:
源基站向目标基站转发关于该 UE的緩存数据; 和 /或
源基站接收到服务网关发送的 end ma rke r (结束标记) 消息, 并将 所述 end ma rke r消息发送至目标基站; 和 /或
源基站接收目标基站发送 r e l ea s e re s our ce s (释放资源) 的命令, 根据该命令释放 UE的资源。
进一步的,源基站可以在执行完上述操作后停止对目标小区切换带宽 的干扰协调, 即:
源基站可以在转发完关于 UE的緩存数据时停止对目标小区切换带宽 的干扰协调; 或者
源基站可以在接收到服务网关发送的 end ma rke r后停止对目标小区 切换带宽的干扰协调; 或者
源基站可以在释放完 UE的资源时停止对目标小区切换带宽的干扰协 调。
如上所述, 在 UE进行小区间切换的过程中, 在 UE通过目标小区切换 带宽与目标基站交互切换信令时,源基站对目标小区切换带宽进行干扰协 调以减少对 UE的邻区干扰, 所述目标小区切换带宽包括源小区上行切换 带宽和源小区下行切换带宽; 在 UE通过源小区切换带宽与源基站进行切 换带宽时, 目标基站对源小区切换带宽进行干扰协调以减少对 UE的邻区 干扰,所述源小区切换带宽包括源小区上行切换带宽和源小区下行切换带 宽。 值得说明的是, 在提升小区内用户的吞吐率的同时, 为了减少基站的 负担, 源基站可以仅对目标小区上行切换带宽进行干扰协调, 也可以仅对 目标小区下行带宽进行干扰协调; 目标基站可以仅对源小区上行切换带宽 进行干扰协调, 也可以仅对源小区下行切换带宽进行干扰协调。
本发明实施例提供的小区间切换的方法, 在 UE与源基站通过源小区 切换带宽交互切换信令时, 目标基站对源小区切换带宽进行干扰协调以减 少对 UE的邻区干扰;在 UE与目标基站通过目标小区切换带宽交互切换信 令时, 源基站对目标小区切换带宽进行干扰协调, 以减少对 UE的邻区干 扰。 与现有技术相比, 本发明实施例能够在 UE进行小区间切换时减少邻 区基站对所述 UE产生的邻区干扰, 提高切换成功率, 减少切换用户数据 的上下行时延。 实施例 4
本发明实施例提供了一种基站,能够上述方法实施例中源基站侧的方 法, 如图 4所示, 所述基站包括:
第一发送模块 401 , 用于通过源小区切换带宽向 UE发送切换命令, 以指示 UE从当前基站切换至目标基站;
第一处理模块 402 , 用于当所述 UE通过目标小区切换带宽与目标基 站交互切换信令时, 对所述目标小区切换带宽进行干扰协调, 以减少当前 基站对 UE的干扰。
可选的,所述第一处理模块 402还用于控制当前基站在所述目标小区 上行切换带宽进行干扰协调; 或者
所述第一处理模块 402 还用于控制当前基站在所述目标小区下行切 换带宽进行干扰协调; 或者
所述第一处理模块 402 还用于控制当前基站在所述目标小区上行切 换带宽以及所述目标小区下行切换带宽同时进行干扰协调。
进一步的, 如图 5所示, 所述第一处理模块 402包括: 第一处理单元 4021和 /或第二处理单元 4022 , 其中:
第一处理单元 4021用于指示当前基站在所述目标小区切换带宽内不 进行调度;
第二处理单元 4022用于指示当前基站在所述目标小区切换带宽内降 低功率进行调度。 进一步的, 如图 6所示, 所述第一处理模块 402还包括第三处理单元 4023, 所述第三处理单元 4023用于当 UE切换完成后, 指示当前基站停止 对目标小区切换带宽的干扰协调。
具体的,第三处理单元 4023还用于当该基站转发完所述 UE的緩存数 据时, 指示当前基站停止对所述目标小区切换带宽的干扰协调; 或者
第三处理单元 4023还用于当接收到服务网关发送的 End Marker时, 指示当前基站停止对所述目标小区切换带宽的干扰协调; 或者
第三处理单元 4023还用于当该基站释放完所述 UE的资源时,指示当 前基站停止对所述目标小区切换带宽的干扰协调; 或者
第三处理单元 4023 还用于当该基站接收到目标基站发送的 UE context release (用户设备上下文译放) 消息时, 指示当前基站停止对 所述目标小区切换带宽的干扰协调。
进一步的, 所述第三处理单元 4023还用于当到达第一预设时间时, 指示当前基站停止对所述目标小区切换带宽的干扰协调, 其中, 所述第一 预设时间为所述用户设备能够完成与所述目标基站之间切换信令交互的 时间。
本发明实施例提供的基站, 在 UE与目标基站通过目标小区切换带宽 交互切换信令时, 由第一处理模块 402 对目标小区切换带宽进行干扰协 调, 以减少对 UE的邻区干扰。 与现有技术相比, 本发明实施例提供的基 站能够在 UE进行小区间切换时减少源基站对 UE产生的邻区干扰,提高切 换成功率, 并能够减少切换用户数据的上下行时延。 实施例 5
本发明实施例提供了一种基站,能够实现上述方法实施例中目标基站 侧的方法, 如图 7所示, 所述基站包括:
第二处理模块 701, 用于当 UE与源基站交互切换信令时, 对源小区 切换带宽进行干扰协调; 第三处理模块 702, 用于在所述 UE 完成与源基站之间切换信令交互 的情况下, 指示当前基站停止对所述源小区切换带宽的干扰协调;
切换模块 703, 用于通过目标小区切换带宽与所述 UE交互切换信令, 完成所述 UE从源基站到当前基站的切换。
具体的, 第二处理模块 701 用于对源小区上行切换带宽进行干扰协 调; 或者
第二处理模块 701还用于对源小区下行切换带宽进行干扰协调;或者 第二处理模块 701 还用于对源小区上行切换带宽以及所述源小区下 行切换带宽同时进行干扰协调。
进一步的, 如图 8 所示, 所述第二处理模块 701 包括第四处理单元 7011和 /或第五处理单元 7012, 其中:
第四处理单元 7011用于指示当前基站在源小区切换带宽内不进行调 度;
第五处理单元 7012用于指示当前基站在所述源小区切换带宽内降低 功率进行调度。
进一步的, 所述第三处理模块 702还用于当接收到 UE发送的 random access preamble时, 指示当前基站停止对源小区切换带宽的干扰协调。
具体的, 所述第三处理模块 702还用于当到达第二预设时间时, 指示 当前基站停止对源小区切换带宽的干扰协调, 其中, 第二预设时间为所述 用户设备能够完成与所述源基站之间切换信令的交互的时间。
本发明实施例提供的基站, 在 UE与源基站通过源小区切换带宽交互 切换信令时,由第二处理模块 701对源小区切换带宽进行干扰协调以减少 对所述 UE的邻区干扰。 与现有技术相比, 本发明实施例能够在 UE进行小 区间切换时减少目标基站对 UE产生的邻区干扰, 提高切换成功率, 并能 够减少切换用户数据的上下行时延。
本发明实施例还提供了一种小区间切换的系统,包括图 4至图 6所述 的基站和图 7、 图 8所述的基站, 当 UE在源基站和目标基站之间进行小 区间切换时, 能够减少对 UE的邻区干扰, 具体实现方法参见上述装置实 施例, 此处不再贅述。 值得说明的是, 所述小区间切换包括基站内小区间 切换和基站间小区间切换; 当 UE进行基站内小区间切换时, 源基站和目 标基站是同一个基站。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到 本发明可借助软件加必需的通用硬件的方式来实现, 当然也可以通过硬 件, 但很多情况下前者是更佳的实施方式。 基于这样的理解, 本发明的技 术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式 体现出来, 该计算机软件产品存储在可读取的存储介质中, 如计算机的软 盘, 硬盘或光盘等, 包括若干指令用以使得一台计算机设备(可以是个人 计算机, 服务器, 或者网络设备等) 执行本发明各个实施例所述的方法。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围并不局 限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内, 可 轻易想到变化或替换, 都应涵盖在本发明的保护范围之内。 因此, 本发明 的保护范围应以所述权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种小区间切换的方法, 其特征在于, 包括:
通过源小区切换带宽向用户设备发送切换命令, 指示所述用户设备从 源基站切换至目标基站;
当所述用户设备通过目标小区切换带宽与目标基站交互切换信令时, 对所述目标小区切换带宽进行干扰协调, 以减少对用户设备的干扰。
2、 根据权利要求 1所述的方法, 其特征在于, 所述对所述目标小区切 换带宽进行干扰协调包括:
在所述目标小区上行切换带宽进行干扰协调; 或者
在所述目标小区下行切换带宽进行干扰协调; 或者
在所述目标小区上行切换带宽以及所述目标小区下行切换带宽同时进 行干扰协调。
3、 根据权利要求 2所述的方法, 其特征在于, 所述对所述目标小区切 换带宽进行干扰协调包括:
在所述目标小区切换带宽内不进行调度; 和 /或
在所述目标小区切换带宽内降低功率进行调度。
4、 根据权利要求 1 - 3中任一项所述的方法, 其特征在于, 还包括: 当所述用户设备切换完成后, 停止对所述目标小区切换带宽的干扰协 调。
5、 根据权利要求 4所述的方法, 其特征在于, 所述当所述用户设备切 换完成后, 停止对所述目标小区切换带宽的干扰协调, 包括以下之一或组 合:
当所述源基站转发完所述用户设备的緩存数据时停止对所述目标小区 切换带宽的干扰协调;
当所述源基站接收到服务网关发送的结束标记指示时停止对所述目标 小区切换带宽的干扰协调;
当所述源基站释放完所述用户设备的资源时停止对所述目标小区切换 带宽的干扰协调;
当所述源基站接收到目标基站发送的用户设备上下文释放消息时停止 对所述目标小区切换带宽的干扰协调。
6、 根据权利要求 1-5中任一项所述的方法, 其特征在于, 还包括: 当到达第一预设时间时, 停止对所述目标小区切换带宽的干扰协调, 其中, 所述第一预设时间为所述用户设备能够完成与所述目标基站之间切 换信令交互的时间。
7、 一种小区间切换的方法, 其特征在于, 包括:
当用户设备与源基站交互切换信令时, 对源小区切换带宽进行干扰协 调;
在所述用户设备完成与源基站之间切换信令交互的情况下, 停止对所 述源小区切换带宽的干扰协调;
通过目标小区切换带宽与所述用户设备交互切换信令, 完成所述用户 设备从所述源基站到所述目标基站的切换。
8、 根据权利要求 7所述的方法, 其特征在于, 所述对源小区切换带宽 进行干扰协调包括:
在所述源小区上行切换带宽进行干扰协调; 或者
在所述源小区下行切换带宽进行干扰协调; 或者
在所述源小区上行切换带宽以及所述源小区下行切换带宽同时进行干 扰协调。
9、 根据权利要求 8所述的方法, 其特征在于, 所述对源小区切换带宽 进行干扰协调包括:
在所述源小区切换带宽内不进行调度; 和 /或
在所述源小区切换带宽内降低功率进行调度。
10、 根据权利要求 7-9 中任一项所述的方法, 其特征在于, 所述在所 述用户设备完成与源基站之间切换信令交互的情况下, 停止对所述源小区 切换带宽的干扰协调包括: 当接收到所述用户设备发送的随机接入序列时, 停止对所述源小区切 换带宽的干扰协调。
1 1、 根据权利要求 1 0所述的方法, 其特征在于, 还包括:
当到达第二预设时间时, 停止对所述源小区切换带宽的干扰协调, 其 中, 所述第二预设时间为所述用户设备能够完成与所述源基站之间切换信 令的交互的时间。
1 2、 一种基站, 其特征在于, 包括:
第一发送模块, 用于通过源小区切换带宽向用户设备发送切换命令, 以指示所述用户设备从当前基站切换至目标基站;
第一处理模块, 用于当所述用户设备通过目标小区切换带宽与目标基 站交互切换信令时, 对所述目标小区切换带宽进行干扰协调, 以减少当前 基站对用户设备的干扰。
1 3、 根据权利要求 1 2所述的基站, 其特征在于, 所述第一处理模块还 用于控制当前基站在所述目标小区上行切换带宽进行干扰协调; 或者
所述第一处理模块还用于控制当前基站在所述目标小区下行切换带宽 进行干扰协调; 或者
所述第一处理模块还用于控制当前基站在所述目标小区上行切换带宽 以及所述目标小区下行切换带宽同时进行干扰协调。
14、 根据权利要求 1 3所述的基站, 其特征在于, 所述第一处理模块包 括:
第一处理单元, 用于指示当前基站在所述目标小区切换带宽内不进行 调度; 和 /或
第二处理单元, 用于指示当前基站在所述目标小区切换带宽内降低功 率进行调度。
1 5、 根据权利要求 1 2-14 中任一项所述的基站, 其特征在于, 所述第 一处理模块还包括:
第三处理单元, 用于当所述用户设备切换完成后, 指示当前基站停止 对所述目标小区切换带宽的干扰协调。
1 6、 根据权利要求 1 5所述的基站, 其特征在于, 所述第三处理单元用 于当转发完所述用户设备的緩存数据时, 指示当前基站停止对所述目标小 区切换带宽的干扰协调; 或者
所述第三处理单元还用于当接收到服务网关发送的结束标记指示时, 指示当前基站停止对所述目标小区切换带宽的干扰协调; 或者
所述第三处理单元还用于当释放完所述用户设备的资源时, 指示当前 基站停止对所述目标小区切换带宽的干扰协调; 或者
所述第三处理单元还用于当接收到目标基站发送的用户设备上下文释 放消息时, 指示当前基站停止对所述目标小区切换带宽的干扰协调。
1 7、 根据权利要求 1 2-1 6 中任一项所述的基站, 其特征在于, 所述第 三处理单元还用于当到达第一预设时间时, 指示当前基站停止对所述目标 小区切换带宽的干扰协调, 其中, 所述第一预设时间为所述用户设备能够 完成与所述目标基站之间切换信令交互的时间。
1 8、 一种基站, 其特征在于, 包括:
第二处理模块, 用于当用户设备与源基站交互切换信令时, 对源小区 切换带宽进行干扰协调;
第三处理模块, 用于在所述用户设备完成与源基站之间切换信令交互 的情况下, 指示当前基站停止对所述源小区切换带宽的干扰协调;
切换模块,用于通过目标小区切换带宽与所述用户设备交互切换信令, 完成所述用户设备从源基站到当前基站的切换。
1 9、 根据权利要求 1 8所述的基站, 其特征在于, 所述第二处理模块用 于控制当前基站在所述源小区上行切换带宽进行干扰协调; 或者
所述第二处理模块还用于控制当前基站在所述源小区下行切换带宽进 行干扰协调; 或者
所述第二处理模块还用于控制当前基站在所述源小区上行切换带宽以 及所述源小区下行切换带宽同时进行干扰协调。
20、 根据权利要求 19所述的基站, 其特征在于, 所述第二处理模块包 括:
第四处理单元, 用于指示当前基站在所述源小区切换带宽内不进行调 度; 和 /或
第五处理单元, 用于指示当前基站在所述源小区切换带宽内降低功率 进行调度。
21、 根据权利要求 18-20 中任一项所述的基站, 其特征在于, 所述第 三处理模块用于当接收到所述用户设备发送的随机接入序列时, 指示当前 基站停止对所述源小区切换带宽的干扰协调。
22、 根据权利要求 21所述的基站, 其特征在于, 所述第三处理模块还 用于当到达第二预设时间时, 指示当前基站停止对所述源小区切换带宽的 干扰协调, 其中, 所述第二预设时间为所述用户设备能够完成与所述源基 站之间切换信令的交互的时间。
23、 一种小区间切换的系统, 其特征在于, 包括权利要求 12-17 中任 一项所述的基站和权利要求 18-22中任一项所述的基站。
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Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102388650B (zh) * 2011-09-29 2015-12-16 华为技术有限公司 小区间切换的方法、基站及系统
WO2014046399A1 (ko) * 2012-09-21 2014-03-27 엘지전자 주식회사 무선 통신 시스템에서 주파수 도메인에서 제한적 측정 방법 및 이를 위한 장치
CN103731891B (zh) * 2013-12-27 2017-08-29 上海华为技术有限公司 控制方法和装置
CN106937336A (zh) * 2015-12-29 2017-07-07 普天信息技术有限公司 一种小区切换的方法和基站
JP6230644B2 (ja) * 2016-04-12 2017-11-15 ソフトバンク株式会社 基地局及び移動通信システム
CN110024462A (zh) * 2017-01-06 2019-07-16 富士通株式会社 基于动态时分双工的传输装置、方法以及通信系统
CN111107643B (zh) 2017-06-16 2021-04-09 华为技术有限公司 带宽资源配置方法、装置和系统
CN111373802B (zh) * 2017-11-17 2023-04-25 上海诺基亚贝尔股份有限公司 通信方法和通信设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101106517A (zh) * 2006-07-13 2008-01-16 大唐移动通信设备有限公司 用于高速下行链路分组接入的流量控制方法及rnc
CN101310554A (zh) * 2006-08-22 2008-11-19 华为技术有限公司 切换时无线资源的再分配
CN102026316A (zh) * 2010-12-29 2011-04-20 华为技术有限公司 小区切换方法、装置与系统
CN102388650A (zh) * 2011-09-29 2012-03-21 华为技术有限公司 小区间切换的方法、基站及系统

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7664467B2 (en) * 2006-06-19 2010-02-16 Alcatel-Lucent Usa Inc. Method for coordinated control of radio resources for multicasting in a distributed wireless system
JP4822957B2 (ja) * 2006-06-30 2011-11-24 富士通株式会社 通信装置
WO2008007437A1 (fr) * 2006-07-14 2008-01-17 Fujitsu Limited Système de communication mobile et station de base
WO2008096240A1 (en) * 2007-02-06 2008-08-14 Nokia Corporation Method and apparatus for providing interference coordination in handover signaling
US20080268833A1 (en) * 2007-03-30 2008-10-30 Leping Huang System and Method for Self-Optimization of Interference Coordination in Communication Systems
US8280377B2 (en) * 2007-10-05 2012-10-02 Lg Electronics Inc. Method of performing cell reselection in wireless communication system
ATE515900T1 (de) * 2008-02-04 2011-07-15 Alcatel Lucent Verfahren und vorrichtung zur funkverbindungsfehlerwiederherstellung in einem drahtlosen kommunikationsnetzwerk
EP2180748B1 (en) * 2008-10-21 2017-04-05 Fujitsu Limited Inter-cell interference mitigation signalling methods
US20100238888A1 (en) * 2009-03-19 2010-09-23 Qualcomm Incorporated Systems, apparatus and methods for interference management in wireless networks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101106517A (zh) * 2006-07-13 2008-01-16 大唐移动通信设备有限公司 用于高速下行链路分组接入的流量控制方法及rnc
CN101310554A (zh) * 2006-08-22 2008-11-19 华为技术有限公司 切换时无线资源的再分配
CN102026316A (zh) * 2010-12-29 2011-04-20 华为技术有限公司 小区切换方法、装置与系统
CN102388650A (zh) * 2011-09-29 2012-03-21 华为技术有限公司 小区间切换的方法、基站及系统

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