WO2010118676A1 - 功耗调节的方法、设备及系统 - Google Patents

功耗调节的方法、设备及系统 Download PDF

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Publication number
WO2010118676A1
WO2010118676A1 PCT/CN2010/071724 CN2010071724W WO2010118676A1 WO 2010118676 A1 WO2010118676 A1 WO 2010118676A1 CN 2010071724 W CN2010071724 W CN 2010071724W WO 2010118676 A1 WO2010118676 A1 WO 2010118676A1
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WO
WIPO (PCT)
Prior art keywords
base station
information
cell
configuration parameter
application point
Prior art date
Application number
PCT/CN2010/071724
Other languages
English (en)
French (fr)
Inventor
王道威
陈力
黄颖华
黄敏
戴明增
余刚
夏斌
唐臻飞
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 EP10764089.8A priority Critical patent/EP2413636B1/en
Priority to JP2012505034A priority patent/JP5495144B2/ja
Priority to BRPI1011848A priority patent/BRPI1011848A2/pt
Publication of WO2010118676A1 publication Critical patent/WO2010118676A1/zh
Priority to US13/272,402 priority patent/US8792932B2/en
Priority to US14/310,483 priority patent/US9369955B2/en
Priority to US15/147,335 priority patent/US9699724B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0203—Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206—Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08—Access point devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method, device, and system for power consumption adjustment.
  • a telecommunications network operator includes the procurement of network equipment, computers, instruments, and other one-time expenditures (CAPEX: Capital Expenditure) and daily operational expenditures (OPEX: Operating Expenditure). At present, OPEX has become a very important part of the operator's attention.
  • the power consumption cost of the base station accounts for a large proportion of its OPEX, and most of the power of the base station is consumed by the power amplifier that transmits the signal.
  • the downlink reference signal receives the downlink is required, even if there is no data to be transmitted, the base station needs to transmit downlink reference signal is fixed.
  • the factors affecting the transmit power of the downlink reference signal are the number of downlink reference symbols and the power spectral density of the downlink reference signal.
  • the embodiments of the present invention provide a method, an apparatus, and a system for adjusting power consumption. To this end, the solution provided by the embodiment of the present invention includes:
  • a power consumption adjustment method includes: a base station obtains an application point and a configuration parameter; the base station sends an indication message to the terminal according to the application point and the configuration parameter; the base station uses the configuration parameter at the application point; wherein the configuration parameter includes the cell antenna information or the cell System bandwidth information, the indication message indicates that the terminal uses configuration parameters at the application point.
  • a base station comprising: an information acquiring module, configured to acquire an application point and a configuration parameter; a sending module, configured to send an indication message to the terminal according to the application point and the configuration parameter acquired by the information acquiring module; and an execution module, configured to acquire the module according to the information
  • the obtained application point and the configuration parameter adjust the power consumption of the base station by using the configuration parameter at the application point.
  • the configuration parameter includes the cell antenna information or the cell system bandwidth information, and the indication message indicates that the terminal uses the configuration parameter at the application point.
  • a power consumption adjustment method includes: receiving, by a terminal, an indication message sent by a base station, and acquiring an application point information and configuration parameter information corresponding to the indication message; the terminal uses a configuration parameter at an application point corresponding to the application point information;
  • the setting parameter includes the cell antenna information or the cell system bandwidth information, and the indication message is used to indicate that the terminal uses the configuration parameter at the application point, and the base station is configured to use the configuration parameter at the application point corresponding to the application point information.
  • a system for power consumption adjustment comprising: a base station, wherein the base station can perform all functions of the base station in the method for adjusting power consumption.
  • the base station and the terminal use the configuration parameter including the cell antenna or the bandwidth change at the application point by sending the indication information to the terminal by the base station, and therefore, the system bandwidth of the cell can be dynamically changed while maintaining the normal communication of the user.
  • the size or the number of antennas can dynamically adjust the number of downlink reference symbols to reduce the power consumption of the base station, and correspondingly, reduce the daily operational expenses of the telecommunication operator.
  • FIG. 2 is a schematic flow chart of still another method for power consumption adjustment according to an embodiment of the present invention.
  • FIG. 3 is a schematic block diagram of a base station according to an embodiment of the present invention.
  • FIG. 4 is a schematic block diagram of another base station according to an embodiment of the present invention.
  • FIG. 5 is a schematic block diagram of a terminal in an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a system for power consumption adjustment according to an embodiment of the present invention.
  • the embodiment of the present invention includes: when the cell antenna information or the system bandwidth is changed, the base station obtains an application point and a configuration parameter, and according to the application point and the configuration parameter, the base station sends an indication message to the terminal; the base station uses the a configuration parameter, where the configuration parameter includes cell antenna information or cell system bandwidth information, and the indication message indicates that the terminal starts to use the configuration parameter at the application point.
  • the embodiment of the present invention sets the effective time of the configuration parameter, that is, the application point, so that the terminal simultaneously uses the configuration parameter including the number of cell antennas or the system bandwidth change at the application point and the base station, thereby the system bandwidth size or the number of cell antennas in the cell.
  • the change occurs, the user communication is normal; further, the process of dynamically changing the system bandwidth size and the number of antennas initiated by the base station can reduce the number of downlink reference symbols, thereby achieving the effect of reducing the power consumption of the base station. Further description will be made below in conjunction with specific embodiments and drawings.
  • an embodiment of the present invention provides a method for adjusting power consumption, including: 110: The base station obtains application points and configuration parameters.
  • the base station when the base station initiates a process of changing cell antenna information or changing cell bandwidth information, the base station obtains application points and configuration parameters.
  • the base station may determine, according to the fault detection situation, that the cell antenna information or the cell bandwidth information is changed, thereby initiating a process of changing the cell antenna information or changing the cell bandwidth information; the base station may also initiate the cell antenna information or the cell bandwidth information change according to the triggering factor. Process.
  • the base station detects a certain radio channel failure and other various faults that may cause the cell antenna and the bandwidth information to change, the base station initiates a process of changing the cell antenna information or changing the bandwidth information according to the detected fault.
  • the triggering factor of the process by which the base station initiates the cell antenna information or the cell bandwidth information change includes at least one of a triggering factor such as a cell load condition, a selected time point, or a traffic volume.
  • a triggering factor such as a cell load condition, a selected time point, or a traffic volume.
  • the network side determines whether it is necessary to dynamically change the cell bandwidth or the number of antennas according to the current cell load condition: If the current cell load is less than or equal to the cell If the load condition threshold is used, the system bandwidth of the cell may be reduced or the number of antennas of the cell may be reduced. If the current cell load is greater than or equal to the cell load condition threshold, the system bandwidth or the number of antennas of the cell needs to be increased.
  • the network side may initiate or reduce the system bandwidth or the number of antennas of the cell according to the selected time point.
  • the selected time point may be a certain time point and/or some time of the day. one day.
  • the network side determines to reduce or restore the cell system bandwidth size or the number of antennas according to the traffic volume: If the traffic volume is lower than a certain threshold threshold, the system bandwidth of the cell may be reduced or the antenna of the cell may be reduced. If the traffic volume is higher than a certain threshold threshold, the system bandwidth or the number of antennas of the cell is increased within a range allowed by the upper limit of the system bandwidth of the cell or the upper limit of the number of antennas.
  • the present embodiment has described the content that may be included in the triggering factor for the base station to actively change the cell antenna information or the cell bandwidth information.
  • the triggering factor is not repeatedly described.
  • the triggering factors can be referred to the description in this embodiment.
  • the application point indicates a system frame number in a system frame number (SFN) other than a start point of a modification period of a system message or a start point of a change period of a system message. Apply this configuration parameter.
  • Configuration parameters include:
  • the indication is an indication of a change in the number of cell antennas or a change in the size of the system bandwidth.
  • the information about the number of the cell antennas or the system bandwidth that are pre-changed in the configuration parameters and the indication information indicating whether the number of the cell antennas is changed or the system bandwidth is changed may not be included in the indication message sent by the base station, or may not be in the base station and The terminal is pre-set, but the terminal obtains the pre-changed number of cell antennas or system bandwidth size information by detecting and/or reading a system broadcast message sent by the base station.
  • Configuration parameters can further include:
  • the transmission mode information after the cell antenna is changed.
  • the transmission mode may also need to be changed, and there is a relationship as shown in Table 1 between the two.
  • the changed transmission mode information of the cell antenna included in the configuration parameter may be preset in the manner of setting on the base station and the terminal.
  • the base station sends an indication message to the terminal according to the application point and the configuration parameter.
  • the application point and the configuration parameter may be included in the indication message sent by the base station, and sent to the terminal by using the indication message.
  • the indication message may be a paging message, or a radio resource control connection reconfiguration message (Radio Resource Control Connection Reconfiguration message), or may be a new message.
  • the indication message indicates that the number of the terminal cell antennas or the system bandwidth is about to be changed.
  • the base station uses the configuration parameter at the application point.
  • the base station performs the operation of changing the cell system bandwidth size or the number of antennas at the application point using the configuration parameters.
  • the terminal should also use the configuration parameter at the application point to perform the operation of changing the cell system bandwidth size or the number of antennas.
  • the base station initiates a process of changing the bandwidth of the cell system or the number of transmitting antennas according to the fault detection situation or the triggering factor, and sends an indication message to the terminal to implement the base station and the terminal to start using at the application point at the same time.
  • the embodiment of the present invention provides another method for adjusting power consumption.
  • the base station initiates a process of changing the bandwidth of the cell system or the number of antennas, and the terminal and the base station use configuration parameters at the application point.
  • a method respectively described for a terminal in an idle state and a terminal in a connected state is employed. The method includes:
  • the base station triggers changing the bandwidth of the cell system or the number of transmitting antennas.
  • the base station obtains application points and configuration parameters.
  • the application point is a system frame number other than the start point of the system message change period after the first system message change period or a system message change period start point.
  • the application point and the configuration parameter may be included in the indication message sent by the base station, and sent to the terminal by using the indication message.
  • the terminal may obtain application point information by detecting and/or reading a system broadcast message sent by the base station.
  • the application point and configuration parameters may be included in the indication message, and the application point is a system frame number other than the starting point of the system message change period or a change period starting point.
  • the configuration parameters include: a pre-changed number of cell antennas or system bandwidth size information and indication information indicating whether the number of cell antennas is changed or the system bandwidth is changed.
  • the configuration parameter may further include: transmission mode information after the cell antenna is changed and system information corresponding to the system information.
  • the base station sends an indication message to the terminal according to the obtained application point and the configuration parameter.
  • the base station transmits an indication message to the terminal during the first system message change period, notifying the terminal cell system of the bandwidth size or the number of transmit antennas to change.
  • the indication message is a paging message containing indication information indicating a change in the number of cell antennas or a change in system bandwidth, or a paging message containing system broadcast message change information.
  • the base station sends an indication message to the terminal before the number of cell antennas or the bandwidth changes.
  • the indication message may be a new message or a RRC connection reconfiguration message.
  • the terminal receives the indication message sent by the base station.
  • the terminal obtains the application point and the configuration parameter.
  • the terminal knows that the cell system bandwidth size or the number of transmitting antennas will change.
  • the terminal reads the system broadcast message and detects the system.
  • the broadcast message obtains configuration parameters including the number of pre-changed cell antennas or system bandwidth size information.
  • the configuration parameters include: a pre-changed number of cell antennas or system bandwidth size information, and whether the indication is a change in the number of cell antennas or a change in system bandwidth size.
  • the indication information may further include: transmission mode information after the cell antenna is changed and system information corresponding to the system information.
  • the terminal in the connected state If the indication message contains the application point and the configuration parameters, the terminal can obtain the application point and configuration parameters therein. 350: The terminal and base station use this configuration parameter at the application point.
  • the terminal and the base station change the number of cell antennas or the system bandwidth at the application point.
  • the application point may be located at a starting point of the second system message change period, and the second system message change period may be the next system message change period of the first system message change period, or may be the first system message change period.
  • a system message change period in the future, or the application point may also be a system frame number specified in the configuration parameter after the first system message change period.
  • the terminal in the connected state According to the information of the configuration parameter, the base station and the terminal change the number of cell antennas or the system bandwidth at the application point.
  • the base station initiates changing the bandwidth of the cell system or the number of transmitting antennas, and sends the indication message to the terminal in the idle state to implement the base station and the terminal to use the cell antenna or the system bandwidth at the application point.
  • the configuration parameter of the size change therefore, the system bandwidth size or the number of antennas of the cell can be dynamically changed, so that the number of downlink reference symbols can be dynamically adjusted to achieve the effect of reducing the power consumption of the base station.
  • the terminal in the idle state can learn that the cell system bandwidth or the number of transmit antennas will be changed according to the indication of the received indication message, and the use of the cell antenna or the base station is used at the application point and the base station.
  • the configuration parameter of the system bandwidth change is changed. Therefore, when the system bandwidth or the number of antennas of the cell changes, the communication service between the base station and the terminal is normal.
  • the terminal in the connected state can learn that the cell system bandwidth or the number of transmit antennas is to be changed according to the indication of the received indication message, and the use of the cell antenna or the base station is used at the application point and the base station.
  • the indication message sent by the base station may include configuration parameters required to change the bandwidth of the cell system or the number of antennas, and some information in the configuration parameter is optional information, such as system information. MIB, SIB1 and SIB2. Since the connection status of the terminal may be affected by the system information MIB, SIB1, and SIB2, if the system information MIB, SIB1, and SIB2 are sent to the configuration parameters of the terminal in the connected state, the terminal in the connected state may not need to read.
  • an embodiment of the present invention provides a base station 600, including: an information acquiring module 615, configured to acquire an application point and a configuration parameter; and a sending module 610, configured to use the application point acquired by the information acquiring module 615. Sending an indication message to the terminal with the configuration parameter;
  • the execution module 620 is configured to adjust, according to the application point and the configuration parameter that the information acquisition module 615 acquires, the power consumption of the base station by using the configuration parameter at the application point; where the configuration parameter The cell antenna information or the cell system bandwidth information is included, and the indication message indicates that the terminal uses the configuration parameter at the application point.
  • the base station 600 in this embodiment further includes: a triggering module 700, configured to trigger the information acquiring module 615 to acquire the application point and the configuration parameter according to a triggering factor;
  • the triggering factors include: one of a cell load situation, a selected time point, and a traffic volume.
  • the application point is a starting point of a system message change period or a system frame number other than a start point of the system message change period.
  • the indication message is a paging message including information indicating a cell antenna number or a cell system bandwidth size change information; or the indication message is a radio resource control connection reconfiguration message.
  • the indication message includes the application point and the configuration parameter.
  • the configuration parameter may include: indication information indicating whether the number of cell antennas is changed or the system bandwidth is changed.
  • the configuration parameter may further include: system information that affects the connection state of the terminal and transmission mode information after the cell antenna is changed.
  • the application point is a time point preset on the base station, and the configuration parameter is cell antenna information or cell system bandwidth information preset in the base station.
  • an embodiment of the present invention provides a terminal 820, including: a receiving module 822, an information acquiring module 824, and an executing module 826.
  • the receiving module 822 is configured to receive the indication message.
  • the information acquiring module 824 is configured to acquire the application point information and the configuration parameter information by using the indication message received by the receiving module 822.
  • the execution module 826 is configured to use the information acquisition module acquired by the information acquiring module 824. Obtaining the configuration parameter, where the configuration parameter includes the cell antenna information or the cell system bandwidth information, and the indication message is used to indicate that the terminal 820 uses the configuration parameter at the application point, and the base station is configured to use the configuration parameter at the application point corresponding to the application point information. .
  • the application point is a starting point of the system message change period or other system frame number other than the start point of the system message change period.
  • the indication message may be a paging message including information indicating the number of cell antennas or the cell system bandwidth size change; or the indication message may also be a radio resource control connection reconfiguration message.
  • the configuration parameter may include: indicating whether the number of cell antennas is changed or the system bandwidth is changed. Further, the configuration parameter may further include: system information that affects the link state of the terminal and transmission mode information after the cell antenna is changed. As shown in FIG. 6, the embodiment of the present invention provides a power consumption adjustment system 900, including: a base station 910.
  • the base station 910 is configured to obtain an application point and a configuration parameter, and the base station 910 sends an indication message to the terminal 920 according to the application point and the configuration parameter; the terminal 920 is configured to receive the indication message according to the indication message, and the terminal The 920 obtains the application point and the configuration parameter; the base station 910 and the terminal 920 use the configuration parameter at the application point; wherein the configuration parameter includes cell antenna information or cell system bandwidth information, and the indication message indicates the terminal 920 uses the configuration parameters at the application point.
  • system 900 can also include: terminal 920.
  • the base station 910 in the power consumption adjustment system 900 in this embodiment is further configured to: obtain an application point and a configuration parameter according to a triggering factor, where the triggering factors include: a cell load condition, a selected time point, and a traffic volume. one of them.
  • the application point is a starting point of the system message change period or other system frame number other than the start point of the system message change period.
  • the indication message is a paging message that includes information indicating a cell antenna number or a cell system bandwidth size change information; or, the indication message is a radio resource control connection reconfiguration message. Further, the indication message includes the application point and the configuration parameter.
  • the configuration parameter may include: indication information indicating whether the number of cell antennas is changed or the system bandwidth is changed.
  • the configuration parameter may further include: system information and transmission mode information after the cell antenna is changed.
  • the application point is a time point preset on the base station 910 and the terminal 920, and the configuration parameter is cell antenna information or cell system bandwidth information preset on the base station 910 and the terminal 920.
  • the base station may be a macro cell base station, a micro cell base station, a home base station (HomeNB), or an evolved base station (eNB).

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  • Computer Networks & Wireless Communication (AREA)
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Description

功耗调节的方法、 设备及系统 本申请要求于 2009年 4月 13日提交中国专利局、 申请号为 200910106642. 9、 发 明名称为 "功耗调节的方法、 设备及系统"的中国专利申请的优先权， 其全部内容通过 引用结合在本申请中。 技术领域 本发明涉及通信领域， 尤其涉及功耗调节的方法、 设备及系统。 背景技术 电信网络运营商的成本包括采购网络设备、 计算机、 仪器等一次性支出 （CAPEX: Capital Expenditure)和日常的运营性支出 （OPEX: Operating Expenditure)两个部 分。 目前， OPEX成为运营商关注的很重要的一个部分。对于一个移动运营商而言， 基站 的电能消耗成本占其 OPEX的较大比重，基站的大部分电能都被发射信号的功放所消耗。 在 LTE (L0ng Term Evolution)系统中， 下行的参考信号是下行接收所必需的， 即使没有 任何数据需要发送， 基站也需要固定发射下行的参考信号。影响下行参考信号的发射功 率的因素有下行参考符号的数目和下行参考信号的功率谱密度。 发明内容
本发明实施例提供了功耗调节的方法， 设备及系统， 为此， 本发明实施例提供的方 案包括：
一种功耗调节的方法，包括：基站获得应用点和配置参数；根据应用点和配置参数， 基站发送指示消息给终端； 基站在应用点使用配置参数； 其中， 配置参数包括小区天线 信息或小区系统带宽信息， 指示消息指示终端在应用点使用配置参数。
一种基站， 包括： 信息获取模块， 用于获取应用点和配置参数； 发送模块， 用于根 据信息获取模块获取的应用点和配置参数发送指示消息给终端； 执行模块， 用于根据信 息获取模块获取的应用点和配置参数在应用点使用配置参数调节所述基站的功耗； 其 中， 配置参数包括小区天线信息或小区系统带宽信息， 指示消息指示终端在应用点使用 配置参数。
一种功耗调节的方法， 包括： 终端接收基站发送的指示消息， 并对应指示消息获取 应用点信息和配置参数信息； 终端在应用点信息对应的应用点使用配置参数； 其中， 配 置参数包括小区天线信息或小区系统带宽信息，指示消息用于指示终端在应用点使用配 置参数， 基站用于在应用点信息对应的应用点使用所述配置参数。
一种功耗调节的系统， 包括： 基站， 该基站可以完成上述功耗调节的方法中基站所 有的功能。
本发明实施例通过基站发送指示信息给终端来实现基站和终端在应用点使用包含 小区天线或者带宽改变的配置参数， 因此， 具有能在保持用户通信正常的前提下， 动态 地改变小区的系统带宽大小或者天线的数目， 从而可以动态的调整下行参考符号的数 目， 达到降低基站的能耗， 相应的， 可以降低电信运营商的日常运营性支出。 附图说明 图 1是本发明实施例中一种功耗调节的方法的流程示意图；
图 2是本发明实施例中又一种功耗调节的方法的流程示意图；
图 3是本发明实施例中一种基站的模块示意图；
图 4是本发明实施例中又一种基站的模块示意图；
图 5是本发明实施例中一种终端的模块示意图。
图 6是本发明实施例中一种功耗调节的系统示意图。 具体实施方式 本发明实施例包括： 当小区天线信息或系统带宽大小变化时， 基站获得应用点和配 置参数， 根据该应用点和配置参数， 基站发送指示消息给终端； 基站在该应用点使用该 配置参数， 其中， 该配置参数包括小区天线信息或小区系统带宽信息， 该指示消息指示 终端在该应用点开始使用配置参数。 本发明实施例通过设置配置参数的生效时间， 也即应用点， 使得终端在应用点和基 站同时使用包含小区天线数目或者系统带宽大小改变的配置参数，从而在小区的系统带 宽大小或者小区天线数目发生改变时， 保持用户通信正常； 进一步， 由基站发起的动态 改变小区的系统带宽大小和天线数目流程， 可以达到减少下行参考符号的数目， 进而达 到降低基站能耗的效果。 下面结合具体的实施方式和附图做进一步说明。 如图 1所示， 本发明实施例提供了一种功耗调节的方法， 包括： 110： 基站获得应用点和配置参数。 在本实施例中， 当基站发起小区天线信息改变或者小区带宽信息改变的流程时， 基 站获得应用点和配置参数。基站可以根据故障检测情况判定小区天线信息或者小区带宽 信息发生改变， 从而发起小区天线信息发生改变或者小区带宽信息发生改变的流程； 基 站也可以根据触发因素来发起小区天线信息或小区带宽信息改变的流程。 当基站检测到某射频通道故障以及其他各种可能导致小区天线和带宽信息发生变 化的故障时， 基站根据检测到的故障来发起小区天线信息改变或者带宽信息改变的流 程。 基站发起小区天线信息或小区带宽信息改变的流程的触发因素至少包括：小区负荷 情况、选定的时间点或者话务量等触发因素的其中之一。 针对上述这些列举到的具体触 发因素下面举例说明： 当触发因素为小区负荷情况时， 网络侧根据当前的小区负载情况， 判断是否需要动 态改变小区带宽或天线数目： 如果当前小区负载小于或者等于小区负载情况阈值， 则可 以降低小区的系统带宽或者减少小区的天线数目；如果当前小区负载大于或者等于小区 负载情况阈值， 则需要增加小区的系统带宽或者天线数目。 当触发因素为选定的时间点时， 网络侧可以根据选定的时间点来发起降低或恢复小 区的系统带宽或天线数目该选定的时间点可以为每天的某个时间点和 /或某一天。 当触发因素为话务量时， 网络侧根据话务量确定进行降低或恢复小区系统带宽大小 或天线数目： 如果话务量低于一定门限阈值时， 可以降低小区的系统带宽或者减少小区 的天线数目； 如果话务量高于一定门限阈值时， 则在小区的系统带宽大小上限或者天线 数目上限允许的范围内增加小区的系统带宽或者天线数目。 同时， 需要说明的是， 这些具体触发因素仅仅作为举例使用， 并不构成对本发明实 施例触发因素的范围限制，凡是本领域普通技术人员根据本发明揭露的技术范围内可以 想到的触发因素的变化或者替换都应涵盖在本发明保护的范围之内。 由于本实施例已对基站主动发起改变小区天线信息或小区带宽信息的触发因素可 以包括的内容进行了描述， 在下述实施例中涉及到触发因素时， 不再针对触发因素进行 重复描述， 其具体触发因素可以借鉴本实施中的描述。 该应用点指出从某一个系统消息的变化周期 （Modification Period) 的起始点或 者除了系统消息的变化周期的起始点之外的其他系统帧号 （System Frame Number, SFN) 中的某一个系统帧号应用该配置参数。 配置参数包括：
( 1 ) 预改变的小区天线数目或者系统带宽大小信息；
(2) 指示是小区天线数目改变还是系统带宽大小改变的指示信息。 需要说明的是，配置参数中预改变的小区天线数目或者系统带宽大小信息和指示是 小区天线数目改变还是系统带宽大小改变的指示信息可以不包含在基站发送的指示消 息中， 也可以不在基站和终端上预先设置， 而是终端通过检测和 /或读取基站发送的系 统广播消息得到所述预改变的小区天线数目或者系统带宽大小信息。
配置参数还可以进一步包括：
1 ) 小区天线改变后的传输模式信息， 在 LTE系统中， 当小区天线数目发生改变时， 其传输模式也可能需要发生改变， 其两者之间存在如表 1所示的关系。 需要指出的是， 配置参数中包含的小区天线改变后的传输模式信息可以采用在基站和终端上预先设置 的方式。
表 1 :
Figure imgf000006_0001
2) 系统信息相应的系统信息， 如 MIB (Management Information Block) ， SIB1 (System Information Block 1)和 SIB2 (System Information Block 2)； 由于本实施例已对配置参数可以包括的内容进行了描述，在下述实施例中涉及到配 置参数时，不再针对配置参数的内容进行重复描述，其内容可以借鉴本实施例中的描述。 120： 根据应用点和配置参数， 基站发送指示消息给终端。 应用点和配置参数可以包含在基站发送的指示消息中， 通过指示消息来发送给终 端。 该指示消息可以为寻呼消息，或者为无线资源控制连接重配置消息 (Radio Resource Control Connection Reconfiguration消息）， 也可以为新增的消息。 该指示消息指示 终端小区天线数目或者系统带宽大小将要改变， 终端接收该指示消息时， 终端根据该指 示消息的指示获得应用点和配置参数， 并在应用点使用该配置参数。
130： 基站在所述应用点使用所述配置参数。 基站在应用点使用配置参数执行小区系统带宽大小或者天线数目改变的操作。 此 时，终端也应在该应用点使用该配置参数执行小区系统带宽大小或者天线数目改变的操 作。 采用本实施例中提供的功耗调节的方法，基站根据故障检测情况或触发因素发起改 变小区系统带宽或发射天线数目的流程，发送指示消息给终端来实现基站和终端在应用 点同时开始使用包含预改变的小区天线数目或者系统带宽大小信息配置参数， 因此， 具 有能在保持用户通信正常的前提下， 动态地改变小区的系统带宽或者天线数目， 从而可 以动态的调整下行参考符号的数目， 达到降低基站能耗的效果。 如图 2所示， 本发明实施例提供了又一种功耗调节的方法， 基站发起改变小区系统 带宽大小或者天线数目的流程，终端和基站在应用点使用配置参数。在本发明实施例中， 采用针对处于空闲状态的终端和处于连接状态的终端分别说明的方法。 该方法包括：
310： 根据触发因素， 基站触发改变小区系统带宽大小或发射天线数目。
320： 基站获得应用点和配置参数。 针对处于空闲状态的终端的情况： 应用点为位于第一个系统消息变化周期之后的除了系统消息变化周期起始点之外 的某一个系统帧号或者某一个系统消息变化周期起始点。 应用点和配置参数可以包含在基站发送的指示消息中， 通过指示消息来发送给终 端。 可选的， 终端可以通过检测和 /或读取基站发送的系统广播消息获得应用点信息。 针对处于连接状态的终端的情况： 应用点和配置参数可以包含在指示消息中，应用点为除了系统消息变化周期起始点 之外的某一个系统帧号或者某一个变化周期起始点。 配置参数包括：预改变的小区天线数目或者系统带宽大小信息和指示是小区天线数 目改变还是系统带宽大小改变的指示信息。 配置参数还可以包括：小区天线改变后的传输模式信息以及系统信息相应的系统信 息。
325： 根据该获得的应用点和配置参数， 基站发送指示消息给终端。 针对处于空闲状态的终端的情况： 基站在第一个系统消息变化周期内发送指示消息给终端，通知终端小区系统带宽大 小或发射天线数目将改变。 该指示消息为包含指示小区天线数目或者系统带宽大小变化的指示信息的寻呼消 息， 或者为包含系统广播消息改变信息的寻呼消息。 针对处于连接状态的终端的情况： 基站在小区天线数目或者带宽改变前， 发送指示消息给终端。 指示消息可以是新增的消息， 也可以是无线资源控制连接重配置消息。
330： 终端接收基站发送的指示消息。
340： 对应该指示消息， 终端获得应用点和配置参数。 针对处于空闲状态的终端的情况： 当终端获得该指示消息， 终端得知小区系统带宽大小或发射天线数目将改变。 在第 二个系统消息变化周期开始点，也即第一个系统消息变化周期的下一个系统消息变化周 期开始点， 基站发送新的系统广播消息时， 终端读取该系统广播消息， 并检测系统广播 消息获得包含预改变的小区天线数目或者系统带宽大小信息的配置参数， 此时， 配置参 数包括：预改变的小区天线数目或者系统带宽大小信息和指示是小区天线数目改变还是 系统带宽大小改变的指示信息； 还可以进一步包括： 小区天线改变后的传输模式信息和 系统信息相应的系统信息。 针对处于连接状态的终端的情况： 如果指示消息中包含应用点和配置参数， 终端可以获得其中的应用点和配置参数。 350： 终端和基站在应用点使用该配置参数。 针对处于空闲状态的终端的情况： 根据该配置参数的信息， 终端和基站在应用点改变小区天线数目或系统带宽大小。 该应用点可以位于第二个系统消息变化周期的起始点，第二个系统消息变化周期可以是 第一个系统消息变化周期的下一个系统消息变化周期，也可以是第一个系统消息变化周 期以后的某一个系统消息变化周期， 或者， 该应用点也可以是配置参数中指定的位于第 一个系统消息变化周期之后的某一个系统帧号。 针对处于连接状态的终端的情况： 根据该配置参数的信息， 基站和终端在应用点改变小区天线数目或者系统带宽大 小。 采用本实施例中提供的功耗调节的方法，基站发起改变小区系统带宽大小或发射天 线数目，通过发送指示消息给处于空闲状态的终端来实现基站和终端在应用点使用包含 小区天线或者系统带宽大小改变的配置参数， 因此， 可以动态地改变小区的系统带宽大 小或者天线数目，从而可以动态的调整下行参考符号的数目，达到降低基站能耗的效果。 进一步， 采用本实施例中提供的功耗调节的方法， 处于空闲状态的终端可以根据接 收到的指示消息的指示获知小区系统带宽或发射天线数目将要改变，在应用点和基站使 用包含小区天线或者系统带宽大小改变的配置参数， 因此， 具有能在小区的系统带宽或 者天线数目发生改变时， 达到基站和终端之间通信业务正常。 进一步， 采用本实施例中提供的功耗调节的方法， 处于连接状态的终端可以根据接 收到的指示消息的指示获知小区系统带宽或发射天线数目将要改变，在应用点和基站使 用包含小区天线或者系统带宽大小改变的配置参数， 因此， 具有能在小区的系统带宽或 者天线数目发生改变时， 达到保持基站和终端之间通信业务连续。 进一步， 采用实施例中提供的功耗调节的方法， 基站下发的指示消息可以包含改变 小区系统带宽大小或者天线数目所需的配置参数， 该配置参数中有些信息为可选信息， 例如系统信息 MIB、 SIB1和 SIB2。 由于终端的连接状态可能会受到系统信息 MIB、 SIB1和 SIB2的影响，如果在基站下发给处于连接状态的终端的配置参数中带系统信息 MIB、 SIB1 和 SIB2， 处于连接状态的终端可以不用读取系统信息 MIB、 SIB1和 SIB2， 从而可以减少 这些终端业务的中断时间； 可选的， 如果不带系统信息 MIB、 SIB1和 SIB2， 那么处于连 接状态的终端可能需要读取系统信息 MIB、 SIB1和 SIB2， 该操作可能会导致处于连接状 态的终端产生短时间的业务中断， 例如 200毫秒左右， 该短时间业务中断是被容许的。 如图 3， 本发明实施例提供了一种基站 600， 包括： 信息获取模块 615， 用于获取应用点和配置参数； 发送模块 610，用于根据所述信息获取模块 615获取的所述应用点和所述配置参数发 送指示消息给终端；
执行模块 620，用于根据所述信息获取模块 615获取的所述应用点和所述配置参数在 所述应用点使用所述配置参数对所述基站的功耗进行调整； 其中， 所述配置参数包括小区天线信息或小区系统带宽信息， 所述指示消息指示所 述终端在所述应用点使用所述配置参数。 进一步， 如图 4所示， 本实施例中的基站 600， 还包括： 触发模块 700， 用于根据触发因素， 触发所述信息获取模块 615获取所述应用点和所 述配置参数； 其中， 所述触发因素包括： 小区负载情况、 选定的时间点和话务量其中之一。 进一步， 在本实施例中， 所述应用点为系统消息变化周期的开始点或者除了所述系 统消息变化周期的开始点之外的其他系统帧号。 进一步，所述指示消息为包含指示小区天线数目或小区系统带宽大小改变信息的寻 呼消息； 或，所述指示消息为无线资源控制连接重配置消息。 进一步， 所述指示消息包括所述应用点和所述配置参数。 进一步， 所述配置参数可以包括： 指示是小区天线数目改变还是系统带宽大小改变 的指示信息。 所述配置参数还可以包括： 影响所述终端连接状态的系统信息和小区天线 改变后的传输模式信息。 进一步， 所述应用点为在所述基站上预先设置的时间点，所述配置参数为在所述基 站上预先设置的小区天线信息或小区系统带宽信息。
如图 5所示， 本发明实施例提供了一种终端 820， 包括： 接收模块 822、 信息获取模 块 824和执行模块 826。 接收模块 822用于接收指示消息； 信息获取模块 824用于对应接收模块 822接收的指 示消息获取应用点信息和配置参数信息；执行模块 826用于在信息获取模块 824获取的应 用点使用信息获取模块获取的配置参数； 其中， 配置参数包括小区天线信息或小区系统 带宽信息， 指示消息用于指示终端 820在应用点使用配置参数， 该基站用于在该应用点 信息对应的应用点使用该配置参数。 进一步，应用点为系统消息变化周期的开始点或者除了所述系统消息变化周期的开 始点之外的其他系统帧号。 进一步，指示消息可以为包含指示小区天线数目或小区系统带宽大小改变信息的寻 呼消息； 或， 指示消息也可以为无线资源控制连接重配置消息。 进一步， 配置参数可以包括： 指示是小区天线数目改变还是系统带宽大小改变的指 示信息。 进一步， 配置参数还可以包括： 影响所述终端链接态的系统信息和小区天线改变后 的传输模式信息。 如图 6所示， 本发明实施例提供了一种功耗调节的系统 900， 包括： 基站 910。 基站 910用于获得应用点和配置参数， 根据所述应用点和所述配置参数， 基站 910发 送指示消息给终端 920; 终端 920用于在接受到所述指示消息， 根据所述指示消息， 终端 920获得所述应用点和所述配置参数； 基站 910和终端 920在所述应用点使用所述配置参 数； 其中， 所述配置参数包括小区天线信息或小区系统带宽信息， 所述指示消息指示终 端 920在所述应用点使用所述配置参数。 进一步， 系统 900还可以包括： 终端 920。 进一步， 本实施例中功耗调节的系统 900中基站 910还用于： 根据触发因素获得应用点和配置参数； 其中， 所述触发因素包括： 小区负载情况、 选定的时间点和话务量其中之一。 进一步， 在本实施例中， 应用点为系统消息变化周期的开始点或者除了所述系统消 息变化周期的开始点之外的其他系统帧号。 进一步，所述指示消息为包含指示小区天线数目或小区系统带宽大小改变信息的寻 呼消息； 或，所述指示消息为无线资源控制连接重配置消息。 进一步， 所述指示消息包括所述应用点和所述配置参数。 进一步， 所述配置参数可以包括： 指示是小区天线数目改变还是系统带宽大小改变 的指示信息。 所述配置参数还可以包括： 系统信息和小区天线改变后的传输模式信息。 进一步， 所述应用点为在基站 910和终端 920上预先设置的时间点，所述配置参数为 在基站 910和终端 920上预先设置的小区天线信息或小区系统带宽信息。 在本发明上述实施例中， 基站可以为宏小区基站、 微小区基站、 家庭基站 (HomeNB) 或演进基站 (eNB)等。 本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步骤是可以通 过程序来指令相关的硬件完成， 所述的程序可以存储于一计算机可读存储介质中， 如 ROM/RAM, 磁碟或光盘等。 以上所述， 仅为本发明的优先实施方式， 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以权利要求的保护范 围为准。

Claims

权利要求
1、 一种功耗调节的方法， 其特征在于， 包括：
基站获得应用点和配置参数；
根据所述应用点和所述配置参数， 所述基站发送指示消息给终端；
所述基站在所述应用点使用所述配置参数调节所述基站的功耗；
其中， 所述配置参数包括小区天线信息或小区系统带宽信息。
2、 如权利要求 1所述的方法， 其特征在于， 所述应用点为系统消息变化周期的开始 点或者除了所述系统消息变化周期的开始点之外的其他系统帧号。
3、 如权利要求 1或 2所述的方法， 其特征在于，
所述配置参数包括下列的一种或一种以上：指示是小区天线数目改变还是系统带宽 大小改变的指示信息、影响所述终端连接状态的系统信息和小区天线改变后的传输模式 信息。
4、 如权利要求 1或 2所述的方法， 其特征在于，
所述指示消息为包含指示小区天线数目或小区系统带宽大小改变信息的寻呼消息； 或，
所述指示消息为无线资源控制连接重配置消息；
所述指示消息指示所述终端在所述应用点使用所述配置参数。
5、 如权利要求 1所述的方法， 其特征在于， 所述基站获得应用点和配置参数具体包 括：
所述基站根据触发因素获得所述应用点和所述配置参数；
其中， 所述触发因素为下列的一种或一种以上： 小区负载情况、 选定的时间点和话 务量。
6、 如权利要求 1或 2所述的方法， 其特征在于， 所述基站在所述应用点使用所述配 置参数调节所述基站的功耗包括：所述基站在所述应用点根据所述配置参数调节下行参 考符号的数目。
7、 一种基站， 其特征在于， 包括：
信息获取模块， 用于获取应用点和配置参数；
发送模块，用于根据所述信息获取模块获取的所述应用点和所述配置参数发送指示 消息给终端； 执行模块，用于根据所述信息获取模块获取的所述应用点和所述配置参数在所述应 用点使用所述配置参数调节所述基站的功耗；
其中， 所述配置参数包括小区天线信息或小区系统带宽信息。
8、如权利要求 7所述的基站， 其特征在于， 所述信息获取模块用于获取的所述应用 点为系统消息变化周期的开始点或者除了所述系统消息变化周期的开始点之外的其他 系统帧号。
9、 如权利要求 8或 7所述的基站， 其特征在于，
所述信息获取模块用于获取的所述配置参数包括下列的一种或一种以上：指示是小 区天线数目改变还是系统带宽大小改变的指示信息、影响所述终端链接态的系统信息和 小区天线改变后的传输模式信息。
10、 如权利要求 8或 7所述的基站， 其特征在于，
所述发送模块用于发送的所述指示消息为包含指示小区天线数目或小区系统带宽 大小改变信息的寻呼消息或无线资源控制连接重配置消息；
所述发送模块用于发送的所述指示消息指示所述终端在所述应用点使用所述配置 参数。
11、 如权利要求 8或 7所述的基站， 其特征在于， 还包括：
触发模块， 用于根据触发因素， 触发所述发送模块发送所述指示消息给所述终端； 其中， 所述触发因素为下列参数的一种或一种以上： 小区负载情况、选定的时间点 和话务量。
12、 一种功耗调节的方法， 其特征在于， 包括：
终端接收基站发送的指示消息， 并获取应用点信息和配置参数信息；
所述终端在所述应用点信息对应的应用点使用所述配置参数进行功耗调节； 其中， 所述配置参数包括小区天线信息或小区系统带宽信息， 所述指示消息用于指 示所述终端在所述应用点使用所述配置参数。
13、如权利要求 11所述的方法， 其特征在于， 所述应用点为系统消息变化周期的开 始点或者除了所述系统消息变化周期的开始点之外的其他系统帧号。
14、 如权利要求 12或 13所述的方法， 其特征在于，
所述指示消息为包含指示小区天线数目或小区系统带宽大小改变信息的寻呼消息； 或，
所述指示消息为无线资源控制连接重配置消息。
15、 如权利要求 12或 13所述的方法， 其特征在于，
所述配置参数包括下列的一种或一种以上：指示是小区天线数目改变还是系统带宽 大小改变的指示信息、影响所述终端连接状态的系统信息和小区天线改变后的传输模式 信息。
16、 一种功耗调节的系统， 其特征在于， 包括：
如权利要求 7到 11中任一项所述的基站。
PCT/CN2010/071724 2009-04-13 2010-04-13 功耗调节的方法、设备及系统 WO2010118676A1 (zh)

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