WO2013097796A1 - 一种调整cqi反馈周期的方法、设备和系统 - Google Patents

一种调整cqi反馈周期的方法、设备和系统 Download PDF

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Publication number
WO2013097796A1
WO2013097796A1 PCT/CN2012/087991 CN2012087991W WO2013097796A1 WO 2013097796 A1 WO2013097796 A1 WO 2013097796A1 CN 2012087991 W CN2012087991 W CN 2012087991W WO 2013097796 A1 WO2013097796 A1 WO 2013097796A1
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WIPO (PCT)
Prior art keywords
user equipment
base station
feedback period
cqi
cqi feedback
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.)
Ceased
Application number
PCT/CN2012/087991
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English (en)
French (fr)
Inventor
王成毅
黄鑫
戴丁樟
李金泽
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP12861158.9A priority Critical patent/EP2790451B1/en
Priority to SG11201403685XA priority patent/SG11201403685XA/en
Publication of WO2013097796A1 publication Critical patent/WO2013097796A1/zh
Priority to US14/316,496 priority patent/US9473958B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026Transmission of channel quality indication
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027Scheduling of signalling, e.g. occurrence thereof

Definitions

  • High Speed Downlink Packet Access is an important feature of the R3 version of the 3rd Generation Partnership Project (3GPP), through a series of key technologies. Achieve high-speed data transmission in the downlink.
  • the user equipment feeds back the channel quality indicator of the high speed downlink shared channel in the uplink high-speed dedicated physical control channel (Channe Qua ty Indica tor, CQI) to represent the upper limit of data transmission under the current channel condition. .
  • CQI channel quality indicator of the high speed downlink shared channel in the uplink high-speed dedicated physical control channel
  • the base station After receiving the CQI fed back by the user equipment, the base station compares the currently available power resources with the assumed power, and then adjusts the final CQI to ensure that the power resources are fully utilized.
  • a fixed value is configured for the CQI feedback period for a certain type of service.
  • Embodiments of the present invention provide a method, device, and system for adjusting a CQI feedback period, thereby dynamically adjusting a feedback period of a user equipment CQI, and increasing an uplink throughput rate and a cell uplink coverage.
  • a method for adjusting a CQI feedback cycle including:
  • an apparatus for adjusting a CQI feedback period including:
  • a receiving module configured to receive a CQI adjustment parameter fed back by the base station
  • a determining module configured to determine, according to a CQI adjustment parameter received by the receiving module, whether to adjust a CQI feedback period of the user equipment
  • the processing module is configured to adjust a CQI feedback period of the user equipment when the determining module determines that the feedback period of the CQI needs to be adjusted, and send the adjusted CQI feedback period to the user equipment.
  • a system for adjusting a CQI feedback period including:
  • the base station controls the device and the base station, and the base station is configured to feed back the CQI adjustment parameter to the base station control device.
  • the base station control device determines that the feedback period of the CQI needs to be adjusted, the base station control device forwards the adjusted CQI feedback period to the user equipment.
  • the method, the device, and the system provided by the embodiment of the present invention determine, according to the CQI adjustment parameter, whether the CQI feedback period of the user equipment needs to be adjusted according to the CQI adjustment parameter, and adjust the user equipment when it is determined that the CQI feedback period needs to be adjusted.
  • the CQI feedback period sends the adjusted CQI feedback period to the user equipment, thereby dynamically adjusting the feedback period of the user equipment CQI, and increasing the uplink throughput rate and the cell uplink coverage.
  • FIG. 1 is a schematic flow chart of an embodiment of a method for adjusting a CQ I feedback cycle according to the present invention
  • FIG. 2 is a schematic flowchart of another embodiment of a method for adjusting a CQI feedback cycle according to the present invention
  • 3 is a schematic flowchart of another embodiment of a method for adjusting a CQI feedback cycle according to the present invention
  • FIG. 4 is a schematic flowchart of another embodiment of a method for adjusting a CQI feedback cycle according to the present invention
  • FIG. 6 is a schematic structural diagram of an embodiment of an apparatus for adjusting a CQI feedback cycle according to the present invention
  • FIG. 7 is a schematic structural diagram of another embodiment of an apparatus for adjusting a CQ I feedback period according to the present invention
  • FIG. 8 is a schematic structural diagram of an embodiment of an adjustment CQ I feedback period system according to the present invention.
  • the feedback period of the user equipment CQI can be dynamically adjusted according to the real-time state of the network, such as the cell load condition, the number of users, and the size of the user equipment, so as to increase the uplink throughput rate and the cell uplink coverage.
  • the user equipment can be a terminal device such as a mobile phone.
  • the uplink capacity When the network is busy, if the uplink load of the cell is limited or the number of cell users is large, the control channel power is occupied at a large time, and the uplink capacity may have a bottleneck, which may increase the CQI feedback period, reduce the uplink load occupied by the control channel, and increase the cell. Uplink capacity; When the network is not busy, if the network load is small, when the number of cell users is small, there is no bottleneck in the uplink capacity. At this time, the CQI feedback period can be reduced, and the downlink throughput rate of the HSDPA cell can be improved.
  • the method for determining whether the transmission power of the user equipment is limited is as follows: First, according to the 6 A event and the 6B event fed back by the user equipment, when the user equipment measures the transmission When the transmit power continues for a certain period of time above a certain threshold, the 6A event is fed back, and when the transmit power continues to be lower than the other threshold, the 6B event is fed back. Second, the user equipment transmits power available space according to the user equipment feedback (UE transmi ss ion Power Headroom, UPH) The value of the UPH indicated by the user equipment indicates the current remaining transmit power of the user equipment.
  • UE transmi ss ion Power Headroom UPH
  • the maximum transmit power of the user equipment can be obtained by calculating the maximum transmit power, and then comparing with the predetermined power threshold. It is determined whether the transmission power of the user equipment is limited. If the transmit power of the user equipment is limited, the user equipment should increase the CQI feedback period; if the transmit power of the user equipment changes from limited to unrestricted, the CQI feedback period should be reduced.
  • the CQI feedback period adjustment may be performed only when the user equipment is accessed, or may be performed after the user sets the access, or the CQ I feedback period adjustment is performed before and after the access.
  • FIG. 1 is a schematic flowchart of a method for adjusting a CQ I feedback period according to an embodiment of the present invention, including: Step 101: Receive a CQI adjustment parameter fed back by a base station;
  • the adjustment parameter may be a cell load value measured by the base station, or a number of cell users measured by the base station, or a user equipment transmit power value reported by the base station, or an event type reported by the base station.
  • Step 102 Determine, according to the CQI adjustment parameter, whether a feedback period of the CQI of the user equipment needs to be adjusted;
  • the initial period of the CQI feedback of the user equipment is configured by the base station control device.
  • the feedback period is divided into a long period and a short period, and the base station control device sends a radio bearer (RB) reconfiguration command to configure a fixed feedback period for a certain type of service.
  • RB radio bearer
  • the cell load situation, the number of users, and the size of the user equipment transmit power change in real time, and the responding base station control device needs to determine in real time whether the CQI feedback period of the user equipment needs to be adjusted.
  • Step 103 Adjust the CQI feedback period of the user equipment, and send the adjusted CQI feedback period to the user equipment.
  • the adjusting the CQI feedback period of the user equipment includes changing the CQI feedback period of the user equipment from a long period to a short period, or changing a CQI feedback period of the user equipment from a short period to a long period, and the modified CQI feedback period is controlled by the base station. Device settings.
  • the base station control device sends an RB reconfiguration command to the user equipment, where the reconfiguration command carries the adjusted CQI feedback period, and the user equipment performs CQI feedback according to the new feedback period.
  • the feedback period of the user equipment CQI is dynamically adjusted, and the uplink throughput rate and the cell uplink coverage may be increased.
  • FIG. 2 is a schematic flowchart of another embodiment of a method for adjusting a CQI feedback period according to the present invention, including: Step 201: Receive a cell load value reported by a base station.
  • the cell load value is monitored by the base station and reported to the base station control device.
  • Step 202 Determine whether the cell load value is higher than the first load threshold, and whether it is lower than the second load threshold.
  • step 203 is performed: increasing the CQI feedback of the user equipment. cycle. That is, the base station control device adjusts the short period to a long period.
  • step 204 is performed to: reduce the user equipment. CQI feedback cycle. That is, the base station control device adjusts the long period to a short period.
  • first load threshold and the second load threshold are set by the base station control device, and the first load threshold is higher than the second load threshold, and the foregoing gate may be adjusted according to different services in real time. Limit.
  • FIG. 3 is a schematic flowchart of another embodiment of a method for adjusting a CQI feedback period according to the present invention, including: Step 301: Receive the number of cell users reported by the base station.
  • the number of users in the cell is monitored by the base station and reported to the base station control device.
  • Step 302 Determine whether the number of cell users is higher than the first load threshold, and whether it is lower than the second load threshold.
  • step 303 is performed to increase the CQI feedback period of the user equipment. That is, the base station control device adjusts the short period to a long period.
  • step 304 is performed to: reduce the user equipment. CQI feedback cycle. That is, the base station control device adjusts the long period to a short period.
  • the first user threshold value and the second user threshold are set by the base station control device, and the first user threshold is higher than the second user threshold, and may be real-time according to different services. Adjust the above threshold.
  • Step 401 Receive a user equipment usage power value reported by a base station
  • the user equipment receives the available transmit power value of the reported user equipment
  • the base station receives the available transmit power value of the user equipment, and according to the available transmit power value of the user equipment and the maximum of the user equipment.
  • the transmit power value is used to calculate the transmit power usage value of the user equipment, and the transmit power usage value is reported to the base station control device.
  • Step 402 Determine whether the user equipment usage power value is higher than the first power threshold, and whether it is lower than the second power threshold.
  • the first power threshold and the second power threshold are set by the base station control device, and the first power threshold is higher than the second power threshold, and the power threshold may be adjusted according to different scenarios. .
  • step 403 is performed to increase the CQI feedback period of the user equipment. That is, the base station control device selects a large feedback period and sends it to the user equipment, so that the user equipment occupies a small transmission power, which can improve the uplink coverage of the user equipment at the cell edge, and can maximize the downlink throughput of the HSDPA for the user at the cell center.
  • step 404 is performed: reducing the CQI of the user equipment Feedback cycle. That is, the base station control device selects a small feedback period and sends it to the user equipment.
  • FIG. 5 is a schematic flowchart of another embodiment of a method for adjusting a C Q I feedback period according to the present invention, including: Step 501: Receive a user event type reported by a base station;
  • the user equipment measures the transmit power, and if the transmit power continues to be higher than a threshold for a period of time, the user equipment reports a 6A event to the base station; when the transmit power continues to be lower than another threshold for a period of time, the user equipment sends the base station to the base station. Report 6B events.
  • the base station transparently transmits the received event type to the base station control device.
  • Step 502 Determine whether the user event type is a 6A event, and whether it is a 6B event.
  • the base station control device judges according to the event reported by the base station. If the event type is determined to be a 6A event, the user equipment's transmit power continues to be high for a period of time. After a certain threshold, the transmit power of the user equipment is limited, step 503 is performed: increasing the CQI feedback period of the user equipment. That is, the base station control device selects a large feedback period and sends it to the user equipment, so that the user equipment occupies a small transmission power, which can improve the uplink coverage of the user equipment at the cell edge, and can maximize the downlink throughput of the HSDPA for the user at the cell center.
  • step 504 is performed: reducing the CQI feedback period of the user equipment. That is, the base station control device selects a small feedback period and sends it to the user equipment.
  • FIG. 6 is a schematic structural diagram of an apparatus for adjusting a CQ I feedback period according to an embodiment of the present invention.
  • the device may be a base station controller, and is used to perform a method for adjusting a CQI feedback period according to an embodiment of the present invention, where the method includes: a receiving module 601, configured to receive a base station.
  • the adjustment parameter may be a cell load value, or a number of cell users, or a transmit power of the user equipment.
  • the determining module 602 is configured to determine, according to the CQI adjustment parameter received by the receiving module, whether the feedback period of the CQ I of the user equipment needs to be adjusted;
  • the processing module 603 is configured to adjust a CQI feedback period of the user equipment, and send the adjusted CQI feedback period to the user equipment, when the determining module determines that the feedback period of the CQI needs to be adjusted.
  • the determining module 602 and the processing module 603 may be located in the same physical entity or may be located in different physical entities.
  • the feedback period of the user equipment CQI is dynamically adjusted, and the uplink throughput rate and the cell uplink coverage may be increased.
  • FIG. 7 is a schematic structural diagram of another embodiment of the apparatus for adjusting a CQ I feedback period according to the present invention
  • the determining module 602 may further include: a first determining sub-module 701, configured to determine the base station measurement Whether the cell load value is higher than the first load threshold.
  • adjusting the CQI feedback period of the user equipment is to increase the CQI feedback period of the user equipment;
  • the determining module may further include: a second determining sub-module 702, configured to determine whether the number of cell users measured by the base station is higher than a first user threshold, when the base station measures the cell When the number of users is higher than the first user threshold, adjusting the CQI feedback period of the user equipment is to increase the CQI feedback period of the user equipment;
  • the CQI feedback period of the user equipment is adjusted to reduce the CQI feedback period of the user equipment; when the number of cell users is in the first user number threshold and the second user number No adjustment is made between the limits.
  • the determining module may further include:
  • the third determining sub-module 703 is configured to determine whether the user equipment usage power value reported by the base station is higher than the first power threshold, and adjust the CQI feedback of the user equipment when the user equipment usage power value is higher than the first power threshold.
  • the period is to increase the CQI feedback period of the user equipment;
  • the determining module may further include: a fourth determining sub-module 704, configured to determine whether the user event type reported by the base station is a 6B event, and when the user event type is a 6B event, adjusting the user The CQI feedback period of the device is to increase the CQI feedback period of the user equipment;
  • the base station It is determined whether the user event type reported by the base station is a 6A event.
  • the CQI feedback period of the user equipment is adjusted to reduce the CQI feedback period of the user equipment.
  • FIG. 8 is a schematic structural diagram of an embodiment of an adjustment CQ I feedback period system according to the present invention, including a base station control device 801 and a base station 802;
  • the base station control device 801 is the device described in Embodiment 6 or FIG. 7;
  • the base station 802 is configured to feed back the CQI adjustment parameter to the base station control device 801.
  • the base station control device 801 determines that the feedback period of the CQI needs to be adjusted, the CQI feedback period adjusted by the base station control device 801 is forwarded to the user equipment.
  • the base station 802 is further configured to receive the available transmit power value reported by the user equipment, and calculate according to the available transmit power value of the user equipment and the maximum transmit power value of the user equipment. The value of the transmit power of the user equipment is used, and the value of the transmit power is reported to the base station control device.
  • the foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例公开了一种调整信道质量指示CQI反馈周期的方法、设备和系统。通过接收基站反馈的CQI调整参数,根据CQI调整参数判断是否需要调整用户设备的CQI的反馈周期,当判断需要调整CQI的反馈周期时,调整用户设备的CQI反馈周期,并将调整后的CQI反馈周期发送给所述用户设备,从而动态调整用户设备CQI的反馈周期,增加了上行吞吐率和小区上行覆盖。

Description

一种调整 CQI反馈周期的方法、 设备和系统 本申请要求于 2011 年 12 月 30 日提交中国专利局、 申请号为 201110456025.9、 发明名称为"一种调整 CQI反馈周期的方法、 设备和系统" 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 本发明涉及通信技术领域, 尤其涉及一种调整 CQI 反馈周期的方法和 设备。
背景技术 高速下行分组接入 ( High Speed Downl ink Packet Acces s, HSDPA )是 第三代合作伙伴计划 ( The 3rd Genera t ion Par tnershi p Project, 3GPP) R5 版本的重要特性, 通过一系列关键技术, 实现了下行的高速数据传输。 在 HSDPA算法中,用户设备在上行链路高速专用物理控制信道中反馈高速下行 链路共享信道的信道质量指示(Channe l Qua l i ty Indica tor, CQI)用来表征 当前信道条件下数据传输的上限。 基站收到用户设备反馈的 CQI 后, 会根 据当前可用的功率资源与假设的功率进行比较, 再调整最终 CQI , 确保功率 资源充分利用。 通常, 针对某一类型业务为 CQI反馈周期配置一个固定值。
发明内容 本发明实施例提供了一种调整 CQI 反馈周期的方法、 设备和系统, 从 而动态调整用户设备 CQI的反馈周期, 增加了上行吞吐率和小区上行覆盖。
一方面提供了一种调整 CQI反馈周期的方法, 包括:
接收基站反馈的 CQI调整参数, 根据 CQI调整参数判断是否需要调整 用户设备的 CQI的反馈周期; 当判断需要调整 CQI 的反馈周期时, 调整用户设备的 CQI反馈周期, 并将调整后的 CQI反馈周期发送给用户设备。
另一方面, 提供了一种调整 CQI反馈周期的设备, 包括:
接收模块, 用于接收基站反馈的 CQI调整参数;
判断模块, 用于根据接收模块接收的 CQI 调整参数, 判断是否需要调 整用户设备的 CQI的反馈周期;
处理模块, 当判断模块判断需要调整 CQI 的反馈周期时, 用于调整用 户设备的 CQI反馈周期, 并将调整后的 CQI反馈周期发送给用户设备。
再一方面, 提供了一种调整 CQI反馈周期的系统, 包括:
基站控制设备和基站, 该基站用于向基站控制设备反馈 CQI调整参数, 当基站控制设备判断需要调整 CQI 的反馈周期时, 将基站控制设备调整后 的 CQI反馈周期转发给所述用户设备。
本发明实施例提供的方法、 设备和系统, 根据接收基站反馈的 CQI 调 整参数, 根据 CQI调整参数判断是否需要调整用户设备的 CQI的反馈周期, 当判断需要调整 CQI 的反馈周期时, 调整用户设备的 CQI反馈周期, 并将 调整后的 CQI 反馈周期发送给所述用户设备, 从而动态调整用户设备 CQI 的反馈周期, 增加了上行吞吐率和小区上行覆盖。
附图说明 为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述 中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图是 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 动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明调整 CQ I反馈周期方法一实施例的流程示意图;
图 2为本发明调整 C Q I反馈周期方法另一实施例的流程示意图; 图 3为本发明调整 C Q I反馈周期方法另一实施例的流程示意图; 图 4为本发明调整 C Q I反馈周期方法另一实施例的流程示意图; 图 5为本发明调整 C Q I反馈周期方法另一实施例的流程示意图; 图 6为本发明调整 C Q I反馈周期设备一实施例的结构示意图;
图 7为本发明调整 CQ I反馈周期设备另一实施例的结构示意图; 图 8为本发明调整 CQ I反馈周期系统一实施例的结构示意图。
具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 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做出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
本发明实施例中, 可以根据网络的实时状态, 如小区负载情况、 用户 数的大小以及用户设备发射功率的大小等, 动态调整用户设备 CQI 的反馈 周期, 增加上行吞吐率和小区上行覆盖。 该用户设备可以为手机等终端设 备。
在网络忙时, 如小区上行负载受限或者小区用户数较多时, 此时控制 信道功率占用较大, 上行容量可能存在瓶颈, 可以增大 CQI 反馈周期, 降 低控制信道占用的上行负载, 增加小区上行容量; 在网络非忙时, 如网络 负载较小情况, 小区用户数较少时, 上行容量无瓶颈, 此时可以减小 CQI 反馈周期, 提高 HSDPA小区下行吞吐率。
当用户设备发射功率受限, 小区上行覆盖性能较差时, 可以通过调整 CQI反馈周期改善小区覆盖性能。有如下方式判断用户设备的发射功率是否 受限: 一是根据用户设备反馈的 6 A事件和 6B事件, 当用户设备测量的发 射功率持续一段时间高于一定门限时会反馈 6A事件, 而当发射功率持续低 于另一个门限时则会反馈 6B事件; 二是根据用户设备反馈的用户设备发射 功率可用空间 (UE transmi s s ion Power Headroom, UPH )测量值, 用户设 备反馈的 UPH指示用户设备当前剩余的发射功率大小, 通过与最大发射功 率的运算可以得到用户设备当前使用的发射功率大小, 再与预定的功率门 限进行比较可以判断出用户设备的发射功率是否受限。 若用户设备的发射 功率受限, 用户设备应增加 CQI 反馈周期; 若用户设备的发射功率从受限 变成不受限, 应减小 CQI反馈周期。
进一步的, 可以仅在用户设备接入时进行 CQI反馈周期调整, 也可以在 用户设接入后进行 CQ I反馈周期调整, 或者在接入前和接入后均进行 CQ I反 馈周期调整。
图 1为本发明调整 CQ I反馈周期方法一实施例的流程示意图, 包括: 步骤 101 : 接收基站反馈的 CQI调整参数;
其中, 该调整参数可以为基站测量的小区负载值, 或所述基站测量的 小区用户数, 或基站上报的用户设备发射功率值, 或基站上报的事件类型 等。
步骤 102:根据 CQI调整参数判断是否需要调整用户设备的 CQI的反馈 周期;
其中, 用户设备的 CQI反馈初始周期由基站控制设备配置。 通常, 反馈 周期分为长周期和短周期, 基站控制设备发送无线承载 (Radio Bearer , RB )重配置指令为某一类型的业务配置一个固定反馈周期。
进一步的, 小区负载情况、 用户数的大小以及用户设备发射功率的大 小实时变化, 响应的基站控制设备需实时判断用户设备的 CQI反馈周期是否 需要调整。
步骤 103: 当判断需要调整 CQI的反馈周期时, 调整用户设备的 CQI反 馈周期, 并将调整后的 CQI反馈周期发送给用户设备。 其中, 调整用户设备的 CQI反馈周期包括将用户设备的 CQI反馈周期 由长周期修改为短周期, 或将用户设备的 CQI 反馈周期由短周期修改为长 周期, 修改后的 CQI反馈周期由基站控制设备设定。
进一步的, 基站控制设备向用户设备发送 RB重配置指令, 该重配置指 令中携带调整后的 CQI反馈周期, 用户设备根据该新反馈周期进行 CQI反 馈。
本发明实施例中, 根据网络的实时状态, 如小区负载情况、 用户数的 大小以及用户设备发射功率的大小, 动态调整用户设备 CQI 的反馈周期, 可以增加上行吞吐率和小区上行覆盖。
图 2为本发明调整 CQI反馈周期方法另一实施例的流程示意图, 包括: 步骤 201 : 接收基站上报的小区负载值。
其中, 该小区负载值由基站进行监测并且上报给基站控制设备。
步骤 202: 判断小区负载值是否高于第一负载门限值, 以及是否低于第 二负载门限值;
其中, 若基站控制设备判断反馈的小区负载值大于设定的第一负载门 限值时, 表明控制信道功率消耗过多, 上行容量可能存在瓶颈, 则执行步 骤 203: 增大用户设备的 CQI反馈周期。 即基站控制设备将短周期调整为长 周期。
进一步的, 若基站控制设备判断反馈的小区负载值低于第二负载门限 值时, 表明网络为非忙状态, 网络负载较小, 上行容量无瓶颈, 则执行步 骤 204 : 减小用户设备的 CQI反馈周期。 即基站控制设备将长周期调整为短 周期。
更进一步的, 上述第一负载门限值和第二负载门限值由基站控制设备 设定, 且第一负载门限值高于第二负载门限值, 可以根据不同的业务实时 调整上述门限值。
图 3为本发明调整 CQI反馈周期方法另一实施例的流程示意图, 包括: 步骤 301 : 接收基站上报的小区用户数;
其中, 该小区用户数由基站进行监测并且上报给基站控制设备。
步骤 302: 判断小区用户数是否高于第一负载门限值, 以及是否低于第 二负载门限值;
其中, 若基站控制设备判断小区用户数大于第一用户数门限值时, 表 明业务较为繁忙, 上行容量可能存在瓶颈, 则执行步骤 303: 增大用户设备 的 CQI反馈周期。 即基站控制设备将短周期调整为长周期。
进一步的, 若基站控制设备判断反馈的小区用户数低于第二用户数门 限值时, 表明网络处于非忙状态, 网络负载较小, 上行容量无瓶颈, 则执 行步骤 304 : 减小用户设备的 CQI反馈周期。 即基站控制设备将长周期调整 为短周期。
更进一步的, 第一用户数门限值和第二用户数门限值由基站控制设备 设定, 且第一用户数门限值高于第二用户数门限值, 可以根据不同的业务 实时调整上述门限值。
图 4为本发明调整 CQI反馈周期方法另一实施例的流程示意图, 包括: 步骤 401 : 接收基站上报的用户设备使用功率值;
其中, 用户设备上才艮可用发射功率值, ( UE t ransmi s s ion Power Headroom, UPH ), 基站接收上报的用户设备的可用发射功率值, 并且根据 用户设备的可用发射功率值和用户设备的最大发射功率值, 计算出用户设 备的发射功率使用值, 并将该发射功率使用值上报到基站控制设备。
步骤 402: 判断用户设备使用功率值是否高于第一功率门限值, 以及是 否低于第二功率门限值;
其中, 第一功率门限值和第二功率门限值由基站控制设备设定, 并且 第一功率门限值高于第二功率门限值, 可以根据不同的场景相应调整上述 功率门限值。
进一步, 若基站控制设备判断用户设备使用功率值高于第一功率门限 值时, 表明用户设备发射功率受限, 则执行步骤 403: 增大用户设备的 CQI 反馈周期。 即基站控制设备选择大的反馈周期发送给用户设备, 使得用户 设备占用较小的发射功率, 可以提升处于小区边缘的用户设备的上行覆盖, 又可以使得处于小区中心的用户最大化 HSDPA的下行吞吐率; 当基站控制设 备判断用户设备使用功率值低于第二功率门限值时, 表明该用户设备发射 功率由受限状态变为非受限状态, 则执行步骤 404 : 减小用户设备的 CQI反 馈周期。 即基站控制设备选择小的反馈周期发送给用户设备。
图 5为本发明调整 C Q I反馈周期方法另一实施例的流程示意图, 包括: 步骤 501 : 接收基站上报的用户事件类型;
其中, 用户设备测量其发射功率, 若该发射功率持续一段时间高于一 个门限时, 该用户设备向基站上报 6A事件; 当该发射功率持续一段时间低 于另一个门限时, 该用户设备向基站上报 6B事件。 基站将接收到的该事件 类型透传给基站控制设备。
步骤 502: 判断用户事件类型是否为 6A事件, 以及是否为 6B事件; 其中, 基站控制设备根据基站上报的事件进行判断, 若判断该事件类 型为 6A事件, 表明用户设备的发射功率持续一段时间高于一定门限, 用户 设备的发射功率受限, 则执行步骤 503 : 增大用户设备的 CQI反馈周期。 即 基站控制设备选择大的反馈周期发送给用户设备, 使得用户设备占用较小 的发射功率, 可以提升处于小区边缘的用户设备的上行覆盖, 又可以使得 处于小区中心的用户最大化 HSDPA的下行吞吐率; 若基站控制设备判断该事 件类型为 6B事件时, 表明该用户设备发射功率由受限状态变为非受限状态, 则执行步骤 504 : 减小用户设备的 CQI反馈周期。 即基站控制设备选择小的 反馈周期发送给用户设备。
图 6为本发明调整 CQ I反馈周期设备一实施例的结构示意图, 该设备可 以为基站控制器, 用于执行本发明实施例调整 CQI反馈周期的方法, 包括: 接收模块 601 , 用于接收基站反馈的 CQI调整参数; 其中, 该调整参数可以为小区负载值, 或为小区用户数, 或为用户设 备发射功率。
判断模块 602 , 用于根据接收模块接收的 CQI调整参数, 判断是否需要 调整用户设备的 CQ I的反馈周期;
具体的判断过程参见前述方法实施例中的描述。
处理模块 603 , 当判断模块判断需要调整 CQI的反馈周期时, 用于调整 用户设备的 CQI反馈周期, 并将调整后的 CQI反馈周期发送给用户设备。
其中, 判断模块 602和处理模块 603 , 在实现中, 可以位于同一物理实 体中, 也可以位于不同的物理实体。
本发明实施例中, 根据网络的实时状态, 如小区负载情况、 用户数的 大小以及用户设备发射功率的大小, 动态调整用户设备 CQI 的反馈周期, 可以增加上行吞吐率和小区上行覆盖。
图 7为本发明调整 CQ I反馈周期设备另一实施例的结构示意图; 当 CQI调整参数为基站测量的小区负载值, 判断模块 602还可以包括: 第一判断子模块 701 ,用于判断基站测量的小区负载值是否高于第一负 载门限值, 当基站测量的小区负载值高于第一负载门限值时, 调整用户设 备的 CQI反馈周期为增大用户设备的 CQI反馈周期;
判断基站测量的小区负载值是否低于第二负载门限值, 当基站测量的 小区负载值低于第二负载门限值时, 调整用户设备的 CQI 反馈周期为减小 用户设备的 CQI 反馈周期; 当小区负载值处于第一负载门限值和第二负载 门限值之间时, 不进行调整。
当 CQI调整参数为基站测量的小区用户数, 判断模块还可以包括: 第二判断子模块 702 ,用于判断基站测量的小区用户数是否高于第一用 户数门限值, 当基站测量的小区用户数高于第一用户数门限值时, 调整用 户设备的 CQI反馈周期为增大用户设备的 CQI反馈周期;
判断基站测量的小区用户数是否低于第二用户数门限值, 当基站测量 的小区用户数低于第二用户数门限值时, 调整用户设备的 CQI 反馈周期为 减小用户设备的 CQI 反馈周期; 当小区用户数处于第一用户数门限值和第 二用户数门限值之间时, 不进行调整。
当 CQI 调整参数为基站上报的用户设备使用功率值, 判断模块还可以 包括:
第三判断子模块 703 ,用于判断基站上报的用户设备使用功率值是否高 于第一功率门限值, 当用户设备使用功率值高于第一功率门限值时, 调整 用户设备的 CQI反馈周期为增大用户设备的 CQI反馈周期;
判断基站上报的用户设备使用功率值是否低于第二功率门限值, 当用 户设备使用功率值低于第二功率门限值时, 调整所述用户设备的 CQI 反馈 周期为减小用户设备的 CQI 反馈周期。 当用户设备使用功率值处于第一功 率门限值和第二功率门限值之间时, 不进行调整。
当 CQI调整参数为基站上报的用户事件类型, 判断模块还可以包括: 第四判断子模块 704 , 用于判断基站上报的用户事件类型是否为 6B事 件, 当用户事件类型为 6B事件时, 调整用户设备的 CQI反馈周期为增大用 户设备的 CQI反馈周期;
判断基站上报的用户事件类型是否为 6A事件, 当用户事件类型为 6A 事件时, 调整用户设备的 CQI反馈周期为减小用户设备的 CQI反馈周期。
图 8为本发明调整 CQ I反馈周期系统一实施例的结构示意图, 包括基站 控制设备 801和基站 802 ;
其中, 基站控制设备 801为实施例图 6或图 7所描述的设备;
基站 802 , 用于向基站控制设备 801反馈 CQI调整参数, 当基站控制设 备 801判断需要调整 CQI的反馈周期时,将基站控制设备 801调整后的 CQI 反馈周期转发给用户设备。
更进一步的, 基站 802还用于接收用户设备上报的可用发射功率值, 并且根据用户设备的可用发射功率值和用户设备的最大发射功率值, 计算 出用户设备的发射功率使用值, 并将发射功率使用值上报到基站控制设备
801。
可以理解的是, 上述方法及设备中的相关特征可以相互参考。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成, 前述的程序可以存储于计算机可 读取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而 前述的存储介质包括: R0M、 RAM, 磁碟或者光盘等各种可以存储程序代码 的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种调整信道质量指示 CQI反馈周期的方法, 其特征在于, 包括: 接收基站反馈的 CQI调整参数, 根据所述 CQI调整参数判断是否需要 调整用户设备的 CQI的反馈周期;
当判断需要调整 CQI 的反馈周期时, 调整所述用户设备的 CQI反馈周 期, 并将所述调整后的 CQI反馈周期发送给所述用户设备。
2、 根据权利要求 1所述的调整信道质量指示 CQI反馈周期的方法, 其 特征在于,
所述 CQI调整参数为所述基站测量的小区负载值;
根据所述 CQI调整参数判断是否需要调整用户设备的 CQI的反馈周期 为:
判断所述基站测量的小区负载值是否高于第一负载门限值, 当所述基 站测量的小区负载值高于所述第一负载门限值时, 所述调整所述用户设备 的 CQI反馈周期为增大所述用户设备的 CQI反馈周期;
判断所述基站测量的小区负载值是否低于第二负载门限值, 当所述基 站测量的小区负载值低于所述第二负载门限值时, 所述调整所述用户设备 的 CQI反馈周期为减小所述用户设备的 CQI反馈周期;
所述第一负载门限值高于所述第二负载门限值。
3、 根据权利要求 1所述的调整信道质量指示 CQI反馈周期的方法, 其 特征在于,
所述 CQI调整参数为所述基站测量的小区用户数;
根据所述 CQI调整参数判断是否需要调整用户设备的 CQI的反馈周期 为:
判断所述基站测量的小区用户数是否高于第一用户数门限值, 当所述 基站测量的小区用户数高于所述第一用户数门限值时, 所述调整所述用户 设备的 CQI反馈周期为增大所述用户设备的 CQI反馈周期;
判断所述基站测量的小区用户数是否低于第二用户数门限值, 当所述 基站测量的小区用户数低于所述第二用户数门限值时, 所述调整所述用户 设备的 CQI反馈周期为减小所述用户设备的 CQI反馈周期;
所述第一用户数门限值高于所述第二用户数门限值。
4、 根据权利要求 1所述的调整信道质量指示 CQI反馈周期的方法, 其 特征在于,
所述 CQI调整参数为基站上报的用户设备使用功率值;
根据所述 CQI调整参数判断是否需要调整用户设备的 CQI的反馈周期 为:
判断所述基站上报的用户设备使用功率值是否高于第一功率门限值, 当所述用户设备使用功率值高于所述第一功率门限值时, 所述调整所述用 户设备的 CQI反馈周期为增大所述用户设备的 CQI反馈周期;
判断所述基站上报的用户设备使用功率值是否低于第二功率门限值, 当所述用户设备使用功率值低于所述第二功率门限值时, 所述调整所述用 户设备的 CQI反馈周期为减小所述用户设备的 CQI反馈周期;
所示第一功率门限值高于所述第二功率门限值。
5、 根据权利要求 1所述的调整信道质量指示 CQI反馈周期的方法, 其 特征在于,
所述 CQI调整参数为基站上报的用户事件类型;
根据所述 CQI调整参数判断是否需要调整用户设备的 CQI的反馈周期 为:
判断所述基站上报的用户事件类型是否为 6B事件, 当所述用户事件类 型为 6B事件时, 所述调整所述用户设备的 CQI反馈周期为增大所述用户设 备的 CQI反馈周期;
判断所述基站上报的用户事件类型是否为 6A事件, 当所述用户事件类 型为 6A事件时, 所述调整所述用户设备的 CQI反馈周期为减小所述用户设 备的 CQI反馈周期。
6、 根据权利要求 1-5任一项所述的调整 CQI反馈周期的方法: 所述调整后的 CQI 反馈周期发送给所述用户设备为: 向用户设备发送
RB重配置指令, 该重配置指令中携带调整后的 CQI反馈周期, 以便所述用 户设备根据调整后的 CQI反馈周期进行 CQI反馈。
7、 一种调整信道质量指示 CQI反馈周期的设备, 其特征在于, 包括: 接收模块, 用于接收基站反馈的 CQI调整参数;
判断模块, 用于根据所述接收模块接收的 CQI 调整参数, 判断是否需 要调整用户设备的 CQI的反馈周期;
处理模块, 当所述判断模块判断需要调整 CQI 的反馈周期时, 用于调 整所述用户设备的 CQI反馈周期, 并将所述调整后的 CQI反馈周期发送给 所述用户设备。
8、 根据权利要求 7所述的调整信道质量指示 CQI反馈周期的设备, 其 特征在于, 所述 CQI 调整参数为所述基站测量的小区负载值, 所述判断模 块包括:
第一判断子模块, 用于判断所述基站测量的小区负载值是否高于第一 负载门限值, 当所述基站测量的小区负载值高于所述第一负载门限值时, 所述调整所述用户设备的 CQI反馈周期为增大所述用户设备的 CQI反馈周 期;
判断所述基站测量的小区负载值是否低于第二负载门限值, 当所述基 站测量的小区负载值低于所述第二负载门限值时, 所述调整所述用户设备 的 CQI反馈周期为减小所述用户设备的 CQI反馈周期。
9、 根据权利要求 7所述的调整信道质量指示 CQI反馈周期的方法, 其 特征在于, 所述 CQI 调整参数为所述基站测量的小区用户数, 所述判断模 块包括: 第二判断子模块, 用于判断所述基站测量的小区用户数是否高于第一 用户数门限值, 当所述基站测量的小区用户数高于所述第一用户数门限值 时, 所述调整所述用户设备的 CQI反馈周期为增大所述用户设备的 CQI反 馈周期;
判断所述基站测量的小区用户数是否低于第二用户数门限值, 当所述 基站测量的小区用户数低于所述第二用户数门限值时, 所述调整所述用户 设备的 CQI反馈周期为减小所述用户设备的 CQI反馈周期。
10、 根据权利要求 7所述的调整信道质量指示 CQI反馈周期的方法, 其特征在于, 所述 CQI 调整参数为基站上报的用户设备使用功率值, 所述 判断模块包括:
第三判断子模块, 用于判断所述基站上报的用户设备使用功率值是否 高于第一功率门限值, 当所述用户设备使用功率值高于所述第一功率门限 值时, 所述调整所述用户设备的 CQI 反馈周期为增大所述用户设备的 CQI 反馈周期;
判断所述基站上报的用户设备使用功率值是否低于第二功率门限值, 当所述用户设备使用功率值低于所述第二功率门限值时, 所述调整所述用 户设备的 CQI反馈周期为减小所述用户设备的 CQI反馈周期。
11、 根据权利要求 7所述的调整信道质量指示 CQI反馈周期的方法, 其特征在于, 所述 CQI 调整参数为基站上报的用户事件类型, 所述判断模 块包括:
第四判断子模块, 用于判断所述基站上报的用户事件类型是否为 6B事 件, 当所述用户事件类型为 6B事件时, 所述调整所述用户设备的 CQI反馈 周期为增大所述用户设备的 CQI反馈周期;
判断所述基站上报的用户事件类型是否为 6A事件, 当所述用户事件类 型为 6A事件时, 所述调整所述用户设备的 CQI反馈周期为减小所述用户设 备的 CQI反馈周期。
12、 一种调整信道质量指示 CQI反馈周期的系统, 其特征在于, 包括: 基站控制设备和基站;
所述基站控制设备釆用权利要求 7-11任一所述的基站控制设备; 所述基站, 用于向所述基站控制设备反馈 CQI 调整参数, 当所述基站 控制设备判断需要调整 CQI 的反馈周期时, 将所述基站控制设备调整后的 CQI反馈周期转发给用户设备。
13、 根据权利要求 12所述的调整信道质量指示 CQI反馈周期的系统, 其特征在于,
所述反馈 CQI 调整参数为小区负载值, 或为小区用户数, 或为用户设 备发送功率值。
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