WO2011088764A1 - 多载波系统的测量控制方法、系统及装置 - Google Patents

多载波系统的测量控制方法、系统及装置 Download PDF

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Publication number
WO2011088764A1
WO2011088764A1 PCT/CN2011/070196 CN2011070196W WO2011088764A1 WO 2011088764 A1 WO2011088764 A1 WO 2011088764A1 CN 2011070196 W CN2011070196 W CN 2011070196W WO 2011088764 A1 WO2011088764 A1 WO 2011088764A1
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Prior art keywords
working
carrier
channel quality
reference value
measure
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PCT/CN2011/070196
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English (en)
French (fr)
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李海涛
梁靖
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电信科学技术研究院
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Priority to EP11734346.7A priority Critical patent/EP2528376B1/en
Priority to US13/522,590 priority patent/US8982845B2/en
Publication of WO2011088764A1 publication Critical patent/WO2011088764A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037Inter-user or inter-terminal allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/02Channels characterised by the type of signal
    • H04L5/06Channels characterised by the type of signal the signals being represented by different frequencies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes

Definitions

  • the present invention relates to the field of mobile communications technologies, and in particular, to a measurement control method, system, and apparatus for a multi-carrier system.
  • LTE Long Term Evolution
  • the base station sends a measurement configuration message to the user equipment (User Equipment, UE) through radio resource control (RRC) signaling, and the UE performs the measurement configuration message according to the content of the measurement configuration message. Measure and then report the measurement to the network.
  • the measurement configuration of the network uses the RRC connection reconfiguration process.
  • the organization structure of the measurement configuration message includes: measurement object, report configuration, measurement identifier, and other parameters.
  • the UE in the LTE system works on a single carrier, and all UEs' mobility frequency measurements are related to the current serving carrier.
  • the network side configures a measurement start threshold s-Measure for the UE.
  • the UE starts all measurements related to the serving carrier.
  • the network side configures an s-Measure value for the current monthly service carrier in a measurement configuration information element (IE) in the RRC connection reconfiguration message.
  • IE measurement configuration information element
  • RRM Radio Resource Management
  • LTE-advanced LTE-advanced
  • LTE-A advanced long-term evolution
  • CA Carrier Aggregation
  • CCs Component Carriers
  • the use of carriers includes two schemes: Scheme a) Configuration ⁇ Activation ⁇ Scheduling; Scheme b) Configuration ⁇ Scheduling.
  • Solution a) The main purpose of introducing activation/deactivation is to flexibly turn on and off the CC according to the size of the traffic, which is used for power saving, and the signaling overhead of the activation/deactivation process is small.
  • the UE still retains its configuration information, and when the channel quality becomes better and the traffic volume becomes larger, the base station activates it again.
  • the idea of scheme b) is that configuration is active, that is, data transmission can be scheduled by the network side.
  • the current discussion on whether an activation/deactivation process is required is still continuing.
  • a more mainstream solution is the fast activation/deactivation process implemented by Ericsson through the Physical Downlink Control Channel (PDCCH, order).
  • PDCCH Physical Downlink Control Channel
  • the working frequency of the UE is a single frequency point, and the measurement start and stop are performed for a single service frequency point; and for a multi-carrier system such as LTE-A, the UE is The aggregation can be performed on multiple carriers.
  • the prior art does not consider how to configure mobility measurement parameters for multiple current working carriers, and does not consider how the UE performs related measurement on and except for the multiple working carriers. shut down.
  • An object of the present invention is to solve at least one of the above technical drawbacks, and in particular to solve the problem of measurement control of a UE in a multi-carrier aggregation operating state.
  • an aspect of the present invention provides a measurement control method for a multi-carrier system, the method comprising the following steps: A user terminal UE selects a working carrier or a worker The channel quality of the carrier group is used as a reference value. When the reference value is smaller than the measurement start threshold s-Measure configured by the evolved base station eNB for the working carrier or the working carrier group, the UE starts all but the working carrier and the working carrier. Measurements outside the group, when the reference value is greater than or equal to the s-Measure, the UE uniformly turns off measurements other than all working carriers and working carrier groups.
  • the present invention also provides a measurement control method for a multi-carrier system, including the following steps:
  • the evolved base station eNB configures a measurement start threshold s-Measure for providing carrier and carrier group services to the user terminal UE, wherein the s-Measure is used for Compared with the reference value selected by the UE, when the s-Measure is smaller than the reference value, the UE uniformly starts measurement except for all working carriers and working carrier groups, when the reference value is greater than or equal to When the s-Measure is described, the UE uniformly turns off measurement except for all working carriers and working carrier groups, where the reference value is a working carrier or a working carrier group selected by the UE corresponding to the s-Measure Channel quality.
  • Another aspect of the present invention also provides a measurement and control system for a multi-carrier system, including an evolved base station eNB and a user terminal UE, where the eNB is configured to configure a measurement start threshold s-Measure for a carrier and a carrier group that provides services to the UE.
  • the UE is configured to select a channel quality of a working carrier or a working carrier group as a reference value, and when the reference value is smaller than an s-Measure configured by the eNB for the working carrier or the working carrier group, uniformly start all but the working carriers. And measuring outside the working carrier group, when the reference value is greater than or equal to the s-Measure configured by the eNB for the working carrier or the working carrier group, uniformly closing measurements except all working carriers and working carrier groups .
  • the invention also provides a user terminal UE, which comprises a selection module, a determination module and a startup module.
  • the selecting module is configured to select, as a reference value, a channel quality of a working carrier or a working carrier group from all carriers and carrier groups that provide services to the UE;
  • the determining module is configured to configure the reference value and the configured value Comparing the measurement start threshold s-Measure corresponding to the reference value to determine whether to start measurement;
  • the startup module is configured to uniformly start all working carriers and working carriers when the reference value is smaller than the s-Measure Measurement outside the group, when the reference value is greater than or equal to the s-Measure, Unified measurement except for all working carriers and working carrier groups is turned off.
  • the present invention also provides an evolved base station eNB, including a configuration module, wherein the configuration module is configured to configure a measurement start threshold s-Measure for a carrier and a carrier group that provides a service to the user terminal UE, where the s-Measure is used for Compared with the reference value selected by the UE, when the s-Measure is smaller than the reference value, the UE uniformly starts measurement except for all working carriers and working carrier groups, when the reference value is greater than or equal to In the s-Measure, the UE uniformly turns off measurement except for all working carriers and working carrier groups, where the reference value is a working carrier or a working carrier corresponding to the s-Measure selected by the UE.
  • the channel quality of the group is configured to configure a measurement start threshold s-Measure for a carrier and a carrier group that provides a service to the user terminal UE, where the s-Measure is used for Compared with the reference value selected by the
  • the embodiments of the present invention uniformly start and shut down measurements except for all working carriers and working carrier groups by referring to the channel quality of a working carrier or a working carrier group, and solve the problem that the UE performs measurement according to multi-carrier signal quality control in multiple working cells. The problem.
  • FIG. 1 is a flowchart of a measurement control method of a multi-carrier system according to an embodiment of the present invention.
  • FIG. 2 is a structural diagram of a measurement control system of a multi-carrier system according to an embodiment of the present invention. MODE FOR CARRYING OUT THE INVENTION
  • the embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions.
  • the embodiments described below with reference to the figures are illustrative and are merely illustrative of the invention and are not to be construed as limiting.
  • the invention mainly refers to the channel quality of a working carrier or a working carrier group. Activating and shutting down measurements other than all working carriers and working carrier groups, solved
  • the UE side working carriers mentioned in the present invention all refer to the currently configured carriers, including the configured but not activated carriers (if there is an activation/deactivation process).
  • a flow chart of a measurement control method for a multi-carrier system includes the following steps:
  • Step S101 The eNB configures a carrier and a carrier group s-Measure for providing services to the UE, where the number of the carriers or carrier groups may be zero.
  • the eNB configures the carrier and carrier group s-Measure to include the following three schemes:
  • the eNB configures a unified s-Measure for all working carriers
  • the eNB configures each independent s-Measure for each working carrier
  • the eNB configures separate s-Measures for each working carrier group.
  • Step S102 The UE selects a channel quality of a working carrier or a working carrier group as a reference value, and when the reference value is smaller than a measurement start threshold s-Measure configured by the eNB for the working carrier or the working carrier group, uniformly starting all working carriers and Measurements outside the working carrier group, when the reference value is greater than or equal to the measurement start threshold s-Measure configured by the eNB for the working carrier or the working carrier group, the measurements except for all working carriers and working carrier groups are uniformly turned off.
  • a measurement start threshold s-Measure configured by the eNB for the working carrier or the working carrier group
  • the UE selects the channel quality of a certain working carrier or a working carrier group as a reference value to start and turn off measurements other than all working carriers and working carrier groups.
  • the reference value is smaller than the s-Measure corresponding to the reference value configured by the eNB, the UE uniformly starts measurement except for all working carriers and the working carrier group; when the reference value is greater than or equal to the eNB configured, corresponding to the reference value For the s-Measure, the UE uniformly turns off measurements other than all working carriers and working carrier groups.
  • the selection of the working carrier or working carrier group with the channel quality as the reference value can be based on the following principles:
  • the wave group starts UE-level measurement, where the channel quality of the working carrier group is a comprehensive evaluation result of channel quality of each working carrier in the working carrier group, such as an algebraic mean or a weighted average; or
  • the UE level measurement is started by using the channel quality of the special cell in the current aggregated carrier of the UE, where the special cell provides the security parameter input and the non-access stratum (NAS) mobile information for the UE. Carrier.
  • NAS non-access stratum
  • the UE aggregates work on three carriers CC-1, CC-2, and CC-3, and the network side configures the corresponding s-Measure values for the three CCs: s-Measure-1, s-Measure-2, and s-Measure-3, and a certain number of frequency points are configured according to the RRM algorithm.
  • the UE acquires the signal quality of each component carrier. If the channel quality of the current three carriers of the UE is higher than the respective s-Measure values, the UE does not need to start except CC.
  • all other component carrier related measurements ie UE level measurements
  • the UE starts measurement of all configurations except the above three CCs.
  • the measurement process is to measure channel quality of all cells in the network configured with measurement objects (frequency points) related to the three other CCs, that is, measure the reference signal received power of the cell (Reference) Signal Receiving Power (RSRP) and at least one of a Receiving Signal Receiving Quality (RSRQ).
  • RSRP Reference Signal received power of the cell
  • RSRQ Receiving Signal Receiving Quality
  • the UE aggregates work on three carriers CC-1, CC-2, and CC-3.
  • the network side configures a UE-level s-Measure value for the UE, and configures a certain number of frequency points according to the RRM algorithm.
  • the UE obtains the signal quality of each component carrier. If the channel quality of the carrier CC-1 with the best channel quality among the current three carriers of the UE is higher than the s-Measure value, The UE does not need to start all other component carrier-related measurements (ie, UE-level measurements) except for the above three CCs, and then the channel state of the best channel quality CC-1 begins to deteriorate and is lower than s-Measure.
  • the UE starts measurement of all configurations except the above three CCs. After that, if the signal quality of CC-1 starts to get better again (still the best of the three CCs) and is higher than the s-Measure value, the UE needs to close the relevant measurements configured in addition to the above three CCs.
  • UE aggregation works on four carriers CC-1, CC-2, CC-3 and CC-4, and the network side is UE for two CC groups (ie ⁇ CC-1, CC-2 ⁇ and ⁇ CC-3, CC-4 ⁇ )
  • the corresponding s-Measure values are configured: s-Measure-1, s-Measure-2, and a certain number of frequency points are configured according to the RRM algorithm.
  • the UE side detects the channel quality of the four CCs, and uses the algebraic average of the quality of each carrier channel in each carrier group as the channel quality of the CC group, if the channel quality of the current two carrier groups is higher than the respective s-Measure For the value, the UE does not need to start all other component carrier-related measurements (ie, UE-level measurements) except for the above four CCs and two CC groups, and then the CC group with the best channel quality ⁇ CC-3, CC- The channel state of 4 ⁇ begins to deteriorate and is lower than s-Measure-2, at which time the UE initiates measurements of all configurations except the above four CCs and two CC groups.
  • component carrier-related measurements ie, UE-level measurements
  • the UE needs to close the relevant measurements of the configuration other than the above four CCs and the two CC groups.
  • the network side configures a UE-level s- for the UE.
  • the Measure value, and a certain number of frequency points are configured according to the RRM algorithm. If the current special cell channel quality of the UE is higher than the s-Measure value, the UE does not need to start measurement related to all other component carriers except the above three CCs (ie, UE level measurement), and then the special cell channel quality starts to change. The difference is lower than the s-Measure value. At this time, the UE starts all measurements except the above three CCs. After that, if the signal quality of the special cell starts to get better again and is higher than the s-Measure value, the UE needs to close the related measurement configured in addition to the above three CCs.
  • the UE aggregates work on three carriers CC-1, CC-2, and CC-3.
  • the network side configures a UE-level s-Measure value for the UE, and configures a certain number of frequency points according to the RRM algorithm.
  • the UE currently performs measurement on all frequency points of the network configuration, and detects the channel quality of all three CCs, and takes the algebraic average of the three carrier channel qualities as the channel quality of the UE level, if the current UE level channel quality is higher than s
  • the -Measure value the UE does not need to start all other component carrier-related measurements (ie, UE-level measurements) except for the above three CCs, after which the UE-level channel quality begins to deteriorate and is lower than s-Measure.
  • the UE initiates measurements of all configurations except the above three CCs. Thereafter, the channel quality of the UE level rises above the s-Measure value, at which time the UE turns off
  • the network side configures three working carriers for the UE, namely: CC-1, CC-2, and CC-3.
  • the network side configures a UE-level s-Measure value for the UE, and configures a certain number of frequencies according to the RRM algorithm. Point measurement. Due to the reduction of the current amount of transmitted data, the CC-2 is deactivated, but the UE side still retains the CC-2 configuration information.
  • the UE aggregates When working on the three component carriers, the UE obtains the signal quality of each component carrier.
  • the UE does not It is necessary to start all other component carrier-related measurements (ie, UE-level measurements) except for the above three CCs. Then, the channel state of the best channel quality CC-1 starts to deteriorate and is lower than s-Measure.
  • the UE initiates measurements of all configurations except the three CCs described above. After that, if the signal quality of CC-1 starts to get better again (still the best among the three CCs) and is higher than the s-Measure value, the UE needs to close the relevant measurements configured in addition to the above three CCs.
  • the network side configures three working carriers for the UE, namely: CC-1, CC-2, and CC-3. Due to the reduction of the current transmission data amount, the CC-2 is deactivated, but the UE side still retains the CC. -2 configuration information.
  • the network side configures a UE-level s-Measure value for the UE, and configures a certain number of frequency points according to the RRM algorithm. If the channel quality of the current three carriers of the UE is higher than the s-Measure value, the UE does not need to start measurement related to all other component carriers except the above three CCs (ie, UE level measurement), and then the channel quality is the worst.
  • the channel state of CC-2 begins to deteriorate and is lower than the s-Measure value.
  • the UE starts all measurements except the above three CCs.
  • the signal quality of CC-2 starts to get better again (still the worst of the three CCs) and is re-higher than the s-Measure value, the UE needs to close the relevant measurements configured in addition to the above three CCs.
  • FIG. 2 is a block diagram showing the structure of a measurement control system of a multi-carrier system including an eNB 100 and a UE 200 according to an embodiment of the present invention.
  • the eNB 100 is configured to configure an s-Measure for the carrier and the carrier group that provides the service to the UE 200, where the number of the carrier or the carrier group may be zero, and the configuration of the s-Measure includes the following three schemes: eNB100 is all working carriers.
  • the eNB 100 configures separate s-Measures for each working carrier; the eNB 100 configures separate s-Measures for each working carrier group.
  • the UE 200 is configured to select a channel quality of a working carrier or a working carrier group as a reference value, and when the reference value is smaller than an s-Measure set by the eNB 100 for the working carrier or the working carrier group, all working carriers and working carrier groups are uniformly started.
  • the external measurement when the reference value is greater than or equal to the s-Measure set by the eNB 100 for the working carrier or the working carrier group, uniformly closes measurements except for all working carriers and working carrier groups.
  • the eNB 100 includes a configuration module 110, configured to configure a measurement start threshold s-Measure for providing a carrier and a carrier group to the user terminal UE.
  • the UE 200 includes a selection module 210, a determination module 220, and a startup module 230.
  • the selecting module 210 is configured to select, as a reference value, a channel quality of one working carrier or a working carrier group from all carriers and carrier groups that provide services to the UE 200;
  • the determining module 220 is configured to set the reference value selected by the selecting module 210 with the eNB 100 The s-Measure corresponding to the reference value is compared to determine whether to start the measurement.
  • the startup module 230 is configured to uniformly start or turn off the measurement except for all the working carriers and the working carrier group according to the determination result of the determining module 220.
  • the selection module 210 may also select a comprehensive evaluation result of the channel quality of all working carriers as a reference value, and then the determining module 220 compares the comprehensive evaluation result of the channel quality of all working carriers with the measurement starting threshold of the eNB 100 for all working carriers.
  • the startup module 230 uniformly starts measurement except all working carriers and working carrier groups, when all working carriers.
  • the startup module 230 uniformly turns off the measurement except for all the working carriers and the working carrier group.
  • the embodiments of the present invention uniformly start and shut down measurements except for all working carriers and working carrier groups by referring to the channel quality of a working carrier or a working carrier group, and solve the problem that the UE performs measurement according to multi-carrier signal quality control in multiple working cells.
  • the problem The above description is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

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Description

多载波系统的测量控制方法、 系统及装置 技术领域 本发明涉及移动通信技术领域,特别涉及一种多载波系统的测量 控制方法、 系统及装置。 发明背景 长期演进( Long Term Evolution, LTE )系统中, 基站通过无线资 源控制 ( Radio Resource Control , RRC ) 信令向用户终端 ( User Equipment, UE )发送测量配置消息, UE根据测量配置消息的内容 进行测量, 然后将测量结果上报给网络。 网络进行测量配置使用的是 RRC 连接重配过程, 测量配置消息的组织结构包括: 测量对象、 上 报配置、 测量标识和其他参数等。 测量上报有三种触发方式: 事件触 发上报、 周期上报和事件触发周期上报, 这三种上报方式根据上报配 置中各种参数的组合进行区分。
LTE系统中的 UE工作在单载波上, UE所有移动性频点的测量 都与当前服务载波相关。 网络侧为 UE 配置一个测量启动门限 s-Measure , 当服务载波信道质量低于 s-Measure值, UE启动与服务 载波相关的所有测量。 具体地, 网络侧在 RRC连接重配消息中的测 量配置信息单元( Information Element, IE ) 中配置针对当前月良务载波 的 s-Measure值。 其中, 具体的 s-Measure参数值的设置与当前服务 小区所在区域的噪声环境、 覆盖范围以及网络侧的无线资源管理 ( Radio Resource Management , RRM ) 算法等因素有关。
然而, 在高级的长期演进( LTE-advanced, LTE- A ) 系统中, 系 统的峰值速率比 LTE 有很大的提高, 要求达到下行 lGbps , 上行 500Mbps , 如果只使用一个带宽为 20MHz 的载波是无法达到峰值速 率要求的。 因此, LTE-A系统需要扩展 UE可以使用的带宽, 因此引 入了载波聚合 ( Carrier Aggregation, CA )技术, 即将同一个演进基 站 eNB下的多个连续或不连续的载波聚合在一起, 同时为 UE服务, 以提供所需的速率。这些聚合在一起的载波称为成员载波( Component Carrier, CC )。每个小区都是一个 CC, 不同 eNB下的小区不能聚合。 为了保证 LTE-A的 UE能够在每一个聚合的载波下工作, 每一个载 波最大不超过 20MHz。
对载波的使用包括两种方案: 方案 a ) 配置→激活→调度; 方案 b ) 配置→调度。 方案 a ) 引入激活 /去激活的主要目的是根据业务量 的大小灵活的开启关闭 CC, 起到省电的目的, 并且激活 /去激活过程 的信令开销较小。 对于去激活的载波, UE仍保留其配置信息, 在其 信道质量变好以及业务量变大时, 由基站再对其进行激活。 方案 b ) 的思想是配置即激活, 即可以被网络侧调度进行数据传输。 目前关于 是否需要激活 /去激活过程的讨论仍在继续, 一种比较主流的方案是 爱立信提出的通过物理下行控制信道命令 (Physical Downlink Control Channel, PDCCH, order)实现的快速激活 /去激活过程。
现有的测量控制方法的缺陷是: 现有技术中 UE的工作频点是单 个频点, 测量启动和关闭是针对单个服务频点进行的; 而对于 LTE-A 这样的多载波系统, UE是可以聚合工作在多个载波上的, 现有技术 中没有考虑如何为多个当前工作载波配置移动性测量参数,也没有考 虑 UE 如何对除了所述多个工作载波之外进行相关测量的开启和关 闭。
因此, 需要一种方案解决上述问题。 发明内容 本发明的目的旨在至少解决上述技术缺陷之一, 特别是解决 UE 在多载波聚合工作状态下的测量控制问题。
为了实现上述目的,本发明一方面提出一种多载波系统的测量控 制方法, 该方法包括以下步骤: 用户终端 UE选择一个工作载波或工 作载波组的信道质量作为参考值, 当所述参考值小于演进基站 eNB 为所述工作载波或工作载波组配置的测量启动门限 s-Measure时, 所 述 U E统一启动除了所有工作载波和工作载波组之外的测量, 当所述 参考值大于或等于所述 s-Measure时, 所述 UE统一关闭除了所有工 作载波和工作载波组之外的测量。
本发明还提出一种多载波系统的测量控制方法, 包括以下步骤: 演进基站 eNB为向用户终端 UE提供服务的载波和载波组配置测 量启动门限 s-Measure,其中所述 s-Measure用于与所述 UE选择的参 考值相比, 当所述 s-Measure小于所述参考值时, 所述 UE统一启动 除了所有工作载波和工作载波组之外的测量, 当所述参考值大于或等 于所述 s-Measure时, 所述 UE统一关闭除了所有工作载波和工作载 波组之外的测量,其中所述参考值为所述 UE选择的与所述 s-Measure 对应的一个工作载波或工作载波组的信道质量。
本发明另一方面还提出一种多载波系统的测量控制系统, 包括演 进基站 eNB和用户终端 UE,所述 eNB用于为向所述 UE提供服务的 载波和载波组配置测量启动门限 s-Measure; 所述 UE用于选择一个 工作载波或工作载波组的信道质量作为参考值, 当所述参考值小于 eNB为所述工作载波或工作载波组配置的 s-Measure时, 统一启动除 了所有工作载波和工作载波组之外的测量, 当所述参考值大于或等于 所述 eNB为所述工作载波或工作载波组配置的 s-Measure时,统一关 闭除了所有工作载波和工作载波组之外的测量。
本发明还提出一种用户终端 UE, 包括选择模块、 判断模块和启 动模块。 所述选择模块用于从所有向所述 UE提供服务的载波和载波 组中选择一个工作载波或工作载波组的信道质量作为参考值;所述判 断模块用于将所述参考值与已配置好的与所述参考值对应的测量启 动门限 s-Measure进行比较, 判断是否启动测量; 所述启动模块用于 当所述参考值小于所述 s-Measure时, 统一启动除了所有工作载波和 工作载波组之外的测量,当所述参考值大于或等于所述 s-Measure时, 统一关闭除了所有工作载波和工作载波组之外的测量。
本发明还提出一种演进基站 eNB, 包含配置模块, 其中 所述配置模块, 用于为向用户终端 UE提供服务的载波和载波组 配置测量启动门限 s-Measure, 其中所述 s-Measure用于与所述 UE选 择的参考值相比, 当所述 s-Measure小于所述参考值时, 所述 UE统 一启动除了所有工作载波和工作载波组之外的测量, 当所述参考值大 于或等于所述 s-Measure时, 所述 UE统一关闭除了所有工作载波和 工作载波组之外的测量, 其中所述参考值为所述 UE 选择的与所述 s-Measure对应的一个工作载波或工作载波组的信道质量。
本发明实施例通过参考一个工作载波或工作载波组的信道质量 来统一启动和关闭除了所有工作载波和工作载波组之外的测量,解决 了 UE在多个工作小区下根据多载波信号质量控制测量的问题。
本发明附加的方面和优点将在下面的描述中部分给出,部分将从 下面的描述中变得明显, 或通过本发明的实践了解到。 附图简要说明 本发明上述的方面和优点从下面结合附图对实施例的描述中将 变得明显和容易理解, 其中:
图 1为本发明实施例的多载波系统的测量控制方法的流程图; 以 及
图 2为本发明实施例的多载波系统的测量控制系统的结构图。 实施本发明的方式 下面详细描述本发明的实施例, 所述实施例的示例在附图中示 出,其中自始至终相同或类似的标号表示相同或类似的元件或具有相 同或类似功能的元件。 下面通过参考值附图描述的实施例是示例性 的, 仅用于解释本发明, 而不能解释为对本发明的限制。
本发明主要在于参考一个工作载波或工作载波组的信道质量,统 一启动和关闭除了所有工作载波和工作载波组之外的测量, 解决了
UE在多个工作小区下如何根据多载波信号质量控制测量的问题。
在本发明中提及的 UE侧工作载波均指当前已配置的载波, 包括 配置但未被激活的载波(假如存在激活 /去激活过程) 。
如图 1所示,为本发明实施例的多载波系统的测量控制方法的流 程图, 该方法包括以下步骤:
步骤 S101 , eNB为向 UE提供服务的载波和载波组配置 s-Measure 其中所述载波或载波组的个数可以为零。
具体地, 在本实施例中, eNB为载波和载波组配置 s-Measure包 括以下三种方案:
A. eNB为所有工作载波配置一个统一的 s-Measure;
B. eNB为每个工作载波配置各自独立的 s-Measure;
C. eNB为每个工作载波组配置各自独立的 s-Measure。
步骤 S102, UE选择一个工作载波或工作载波组的信道质量作为 参考值, 当参考值小于 eNB 为所述工作载波或工作载波组配置的测 量启动门限 s-Measure时,统一启动除了所有工作载波和工作载波组 之外的测量, 当参考值大于或等于 eNB 为所述工作载波或工作载波 组配置的测量启动门限 s-Measure时, 统一关闭除了所有工作载波和 工作载波组之外的测量。
基于步骤 S101的三种方案,UE选择某一个工作载波或工作载波 组的信道质量作为参考值,来启动和关闭除了所有工作载波和工作载 波组之外的测量。 当参考值小于 eNB 配置的与所述参考值对应的 s-Measure时, UE统一启动除了所有工作载波和工作载波组之外的测 量; 当参考值大于或等于 eNB配置的与所述参考值对应的 s-Measure 时, UE统一关闭除了所有工作载波和工作载波组之外的测量。
信道质量作为参考值的工作载波或工作载波组的选取可以依据 以下几种原则:
1 )使用 UE 当前聚合载波中信道质量最好的工作载波或工作载 波组启动 UE级的测量, 其中, 工作载波组的信道质量为该工作载波 组内各个工作载波的信道质量的综合评估结果,例如代数平均值或加 权平均值; 或者,
2 )使用 UE 当前聚合载波中信道质量最差的工作载波或工作载 波组启动 UE级的测量; 或者,
3 )使用 UE当前聚合载波中特殊小区(special cell)的信道质量启 动 UE级的测量, 其中, special cell是为 UE提供安全参数输入和非 接入层 ( Non- Access stratum, NAS ) 移动信息的载波。
值得注意的是, 基于 s-Measure配置方案 A, 还可以参考所有工 作载波信号质量的综合评估结果来启动 UE级的测量。
应理解, 上述实施例仅是示意性的实施例, 并不限制本发明的范 围,本领域普通技术人员还可以选取其他载波或载波组的信道质量作 为参考, 这些修改或变化均应包含在本发明的包含范围之内。
下面以几个实施例具体说明本发明的多载波系统的测量控制方 法。 通过具体实施例的描述, 本发明上述附加的方面和优点将变得更 加明显。
实施例 1
UE聚合工作在三个载波 CC-1、 CC-2和 CC-3上, 网络侧为 UE 针对三个 CC 分别配置了相应的 s-Measure 值: s-Measure- 1 、 s-Measure-2和 s-Measure-3 , 并根据 RRM算法配置了一定数量频点 的测量。 当 UE聚合工作在这三个成员载波上时, UE将获取各个成 员载波的信号质量, 如果 UE当前的三个载波的信道质量都高于各自 的 s-Measure值, 则 UE不需要启动除了 CC-1 , CC-2和 CC-3之外, 所有其它成员载波相关的测量(即 UE级别的测量) , 之后, 信道质 量最差的 CC-2的信道状态开始变差, 并低于 s-Measure-2, 此时, UE 启动除了上述三个 CC外所有配置的测量。 其中, 测量过程是对网络 配置的与除了上述三个 CC外相关的测量对象(频点)下的所有小区 进行信道质量的测量, 即测量小区的参考信号接收功率 (Reference Signal Receiving Power, RSRP)和参考信号接收质量 (Receiving Signal Receiving Quality, RSRQ)中的至少一个。 之后, 如果 CC-2的信号质 量又开始变好(仍为三个 CC中最差) , 重新高于 s-Measure-2值时, 则 UE需要关闭除了上述三个 CC外所有其它配置的相关测量。
实施例 2
UE聚合工作在三个载波 CC-1、 CC-2和 CC-3上, 网络侧为 UE 配置了一个 UE级别的 s-Measure值, 并根据 RRM算法配置了一定 数量频点的测量。 当 UE聚合工作在这三个成员载波上时, UE将获 取各个成员载波的信号质量, 如果 UE当前的三个载波中信道质量最 好的载波 CC-1的信道质量高于 s-Measure值,则 UE不需要启动除了 上述三个 CC外所有其它成员载波相关的测量(即 UE级别的测量), 之后,信道质量最好的 CC-1的信道状态开始变差,并低于 s-Measure, 此时, UE启动除了上述三个 CC外的其它所有配置的测量。 之后, 如果 CC-1的信号质量又开始变好(仍为三个 CC中最好) , 重新高 于 s-Measure值时, 则 UE需要关闭除了上述三个 CC外配置的相关 测量。
实施例 3
UE聚合工作在四个载波 CC-1、 CC-2, CC-3和 CC-4上, 网络 侧为 UE针对两个 CC组 (即 {CC-1 , CC-2}和 {CC-3 , CC-4} ) 分别 配置了相应的 s-Measure值: s-Measure- 1 , s-Measure-2, 并才艮据 RRM 算法配置了一定数量频点的测量。 UE侧检测四个 CC的信道质量, 并将每个载波组内各个载波信道质量的代数平均值作为该 CC组的信 道质量,如果当前两个载波组的信道质量都高于各自的 s-Measure值, 则 UE不需要启动除了上述四个 CC和两个 CC组外, 所有其它成员 载波相关的测量 (即 UE级别的测量) , 之后, 信道质量最好的 CC 组 {CC-3 , CC-4}的信道状态开始变差, 并低于 s-Measure-2, 此时, UE启动除了上述四个 CC和两个 CC组外的所有配置的测量。 之后, 如果信道质量最好的 CC组 {CC-3 , CC-4}的信号质量又开始变好, 重 新高于 s-measure-2值时, 则 UE需要关闭除了上述四个 CC和两个 CC组外其它配置的相关测量。
实施例 4
UE聚合工作在三个载波 CC-1、 CC-2和 CC-3上, 且 CC-3为提 供安全性输入和 NAS移动性参数的 special cell,网络侧为 UE配置了 一个 UE级别的 s-Measure值, 并根据 RRM算法配置了一定数量频 点的测量。如果 UE当前的 special cell信道质量都高于 s-Measure值, 则 UE不需要启动除了上述三个 CC外所有其它成员载波相关的测量 (即 UE级别的测量) , 之后, special cell信道质量开始变差, 并低 于 s-Measure值, 此时, UE启动除了上述三个 CC外的所有测量。 之 后, 如果 special cell的信号质量又开始变好, 重新高于 s-Measure值 时, 则 UE需要关闭除了上述三个 CC外配置的相关测量。
实施例 5
UE聚合工作在三个载波 CC-1、 CC-2和 CC-3上, 网络侧为 UE 配置了一个 UE级别的 s-Measure值, 并根据 RRM算法配置了一定 数量频点的测量。 UE 当前在网络配置的所有频点上进行测量, 并检 测所有三个 CC的信道质量, 把三个载波信道质量的代数平均值作为 UE级的信道质量, 如果当前 UE级的信道质量高于 s-Measure值, 则 UE不需要启动除了上述三个 CC外所有其它成员载波相关的测量(即 UE 级别的测量) , 之后, UE 级的信道质量开始变差, 并低于 s-Measure, 此时, UE启动除了上述三个 CC外的所有配置的测量。 之后, UE级别的信道质量上升至 s-Measure值之上, 此时, UE关闭 除了上述三个 CC外的所有配置的测量。
实施例 6
网络侧为 UE配置了三个工作载波,分别为: CC-1、 CC-2和 CC-3 , 网络侧为 UE配置了一个 UE级别的 s-Measure值,并根据 RRM算法 配置了一定数量频点的测量。 由于当前传输数据量的减少, 对 CC-2 进行了去激活操作, 但 UE侧仍保留 CC-2的配置信息。 当 UE聚合 工作在这三个成员载波上时, UE将获取各个成员载波的信号质量, 如果 UE当前的三个载波中信道质量最好的载波 CC-1的信道质量高 于 s-Measure值, 则 UE不需要启动除了上述三个 CC外所有其它成 员载波相关的测量 (即 UE 级别的测量) , 之后, 信道质量最好的 CC-1 的信道状态开始变差, 并低于 s-Measure, 此时, UE启动除了 上述三个 CC外的所有配置的测量。 之后, 如果 CC-1的信号质量又 开始变好(仍为三个 CC中最好) , 重新高于 s-Measure值时, 则 UE 需要关闭除了上述三个 CC外配置的相关测量。
实施例 7
网络侧为 UE配置了三个工作载波,分别为: CC-1、 CC-2和 CC-3 , 由于当前传输数据量的减少, 对 CC-2进行了去激活操作, 但 UE侧 仍保留 CC-2 的配置信息。 网络侧为 UE 配置了一个 UE 级别的 s-Measure值, 并根据 RRM 算法配置了一定数量频点的测量。 如果 UE当前的三个载波的信道质量都高于 s-Measure值,则 UE不需要启 动除了上述三个 CC外所有其它成员载波相关的测量 (即 UE级别的 测量) , 之后, 信道质量最差的 CC-2的信道状态开始变差, 并低于 s-Measure值, 此时, UE启动除了上述三个 CC外的所有测量。之后, 如果 CC-2的信号质量又开始变好(仍为三个 CC中最差) , 重新高 于 s-Measure值时, 则 UE需要关闭除了上述三个 CC外配置的相关 测量。
应理解, 上述实施例仅是示意性的实施例, 并不限制本发明的范 围。
为实施如上所述的方法,本发明提供了一种多载波系统的测量控 制系统, 如图 2中所示。 图 2显示了根据本发明实施例的多载波系统 的测量控制系统的结构示意图, 该系统包括 eNBlOO 和 UE 200。 eNBlOO用于为向 UE 200提供服务的载波和载波组配置 s-Measure, 其中, 所述载波或载波组的个数可以为零, s-Measure 的配置包括以 下三种方案: eNBlOO 为所有工作载波配置一个统一的 s-Measure; eNBlOO为每个工作载波配置各自独立的 s-Measure; eNBlOO为每个 工作载波组配置各自独立的 s-Measure。 UE 200用于选择一个工作载 波或工作载波组的信道质量作为参考值, 当参考值小于 eNBlOO为所 述工作载波或工作载波组设置的 s-Measure时, 统一启动除了所有工 作载波和工作载波组外的测量,当参考值大于或等于 eNBlOO 为所述 工作载波或工作载波组设置的 s-Measure时, 统一关闭除了所有工作 载波和工作载波组外的测量。
其中, eNB lOO 包括配置模块 110, 用于为向用户终端 UE提供 月良务的载波和载波组配置测量启动门限 s-Measure。
UE 200包括选择模块 210、 判断模块 220和启动模块 230。 选择 模块 210用于从所有向 UE200提供服务的载波和载波组中选择一个 工作载波或工作载波组的信道质量作为参考值;判断模块 220用于将 选择模块 210 选择的参考值与 eNB lOO设置的与所述参考值对应的 s-Measure进行比较, 判断是否启动测量; 启动模块 230用于根据判 断模块 220的判断结果,统一启动或关闭除了所有工作载波和工作载 波组之外的测量。
其中,选择模块 210还可选择所有工作载波的信道质量的综合评 估结果作为参考值,然后判断模块 220将所有工作载波的信道质量的 综合评估结果与 eNBlOO 为所有工作载波统一配置的测量启动门限 s-Measure 相比; 当所有工作载波的信道质量的综合评估结果小于 eNBlOO为所有工作载波统一配置的 s-Measure时, 启动模块 230统 一启动除了所有工作载波和工作载波组的测量, 当所有工作载波的信 道质量的综合评估结果大于或等于 eNBlOO为所有工作载波统一配置 的 s-Measure时, 启动模块 230统一关闭除了所有工作载波和工作载 波组之外的测量。
本发明实施例通过参考一个工作载波或工作载波组的信道质量 来统一启动和关闭除了所有工作载波和工作载波组之外的测量,解决 了 UE在多个工作小区下根据多载波信号质量控制测量的问题。 以上所述仅是本发明的优选实施方式, 应当指出, 对于本技术领 域的普通技术人员来说, 在不脱离本发明原理的前提下, 还可以做出 若干改进和润饰, 这些改进和润饰也应视为本发明的保护范围。

Claims

权利要求书
1、 一种多载波系统的测量控制方法, 包括以下步骤:
用户终端 UE选择一个工作载波或工作载波组的信道质量作为参 考值, 当所述参考值小于演进基站 eNB 为所述工作载波或工作载波 组配置的测量启动门限 s-Measure时, 统一启动除了所有工作载波和 工作载波组之外的测量,当所述参考值大于或等于所述 s-Measure时, 统一关闭除了所有工作载波和工作载波组之外的测量。
2、 根据权利要求 1所述的多载波系统的测量控制方法, 其特征 在于, 所述 UE选择一个工作载波或工作载波组的信道质量作为参考 值, 进一步包括:
所述 UE选择信道质量最好的工作载波的信道质量作为参考值; 或者, 所述 UE选择信道质量最差的工作载波的信道质量作为参 考值;
或者, 所述 UE选择信道质量最好的工作载波组的信道质量作为 参考值;
或者, 所述 UE选择信道质量最差的工作载波组的信道质量作为 参考值;
或者,所述 UE选择特殊小区 special cell的信道质量作为参考值, 其中, 所述 special cell是为所述 UE提供安全参数输入和非接入层 NAS移动信息的载波。
3、 根据权利要求 2所述的多载波系统的测量控制方法, 其特征 在于,所述工作载波组的信道质量为所述工作载波组内各个工作载波 的信道质量的综合评估结果, 其中, 所述综合评估结果包括各个工作 载波的信道质量的加权平均值或者代数平均值。
4、 根据权利要求 1至 3任一项所述的多载波系统的测量控制方 法, 其特征在于, 所述向 UE提供服务的载波和载波组包括配置但未 被激活的载波。
5、 一种多载波系统的测量控制方法, 包括以下步骤:
演进基站 eNB为向用户终端 UE提供服务的载波和载波组配置测 量启动门限 s-Measure,其中所述 s-Measure用于与所述 UE选择的参 考值相比, 当所述 s-Measure小于所述参考值时, 所述 UE统一启动 除了所有工作载波和工作载波组之外的测量, 当所述参考值大于或等 于所述 s-Measure时, 所述 UE统一关闭除了所有工作载波和工作载 波组之外的测量,其中所述参考值为所述 UE选择的与所述 s-Measure 对应的一个工作载波或工作载波組的信道质量。
6、 根据权利要求 5所述的多载波系统的测量控制方法, 其特征 在于, 所述 eNB为向 UE提供服务的载波和载波组配置 s-Measure, 进一步包括:
所述 eNB为所有工作载波配置统一的 s-Measure;
或者,所述 eNB分别为每个工作载波配置各自独立的 s-Measure; 或者, 所述 eNB 分别为每个工作载波组配置各自独立的 s-M63sure。
7、 一种多载波系统的测量控制系统, 包括演进基站 eNB和用户 终端 UE, 其中,
所述 eNB , 用于为向所述 UE提供服务的载波和载波组配置测量 启动门限 s-Measure; 以及
所述 UE, 用于选择一个工作载波或工作载波组的信道质量作为 参考值, 当所述参考值小于所述 eNB 为所述工作载波或工作载波组 配置的 s-Measure时, 统一启动除了所有工作载波和工作载波组之外 的测量, 当所述参考值大于或等于所述 eNB 为所述工作载波或工作 载波组配置的 s-Measure时, 统一关闭除了所有工作载波和工作载波 组之外的测量。
8、 根据权利要求 7所述的多载波系统的测量控制系统, 其特征 在于, 所述 eNB为所有工作载波配置统一的 s-Measure;
或者,所述 eNB分别为每个工作载波配置各自独立的 s-Measure; 或者, 所述 eNB 分别为每个工作载波组配置各自独立的 s-M63sure。
9、 根据权利要求 7所述的多载波系统的测量控制系统, 其特征 在于,所述 UE选择信道质量最好的工作载波的信道质量作为参考值; 或者, 所述 UE选择信道质量最差的工作载波的信道质量作为参 考值;
或者, 所述 UE选择信道质量最好的工作载波组的信道质量作为 参考值;
或者, 所述 UE选择信道质量最差的工作载波组的信道质量作为 参考值;
或者,所述 UE选择特殊小区 special cell的信道质量作为参考值, 其中, 所述 special cell是为所述 UE提供安全参数输入和非接入层 NAS移动信息的载波。
10、 根据权利要求 9所述的多载波系统的测量控制系统, 其特征 在于,所述工作载波组的信道质量为所述工作载波组内各个工作载波 的信道质量的综合评估结果, 其中, 所述综合评估结果包括各个工作 载波的信道质量的加权平均值或者代数平均值。
11、 根据权利要求 7至 10任一项所述的多载波系统的测量控制 系统, 其特征在于, 所述向 UE提供服务的载波和载波组包括配置但 未被激活的载波。
12、 一种用户终端 UE, 包括选择模块、 判断模块和启动模块, 其中,
所述选择模块, 用于从所有向所述 UE提供服务的载波和载波组 中选择一个工作载波或工作载波组的信道质量作为参考值;
所述判断模块,用于将所述参考值与已配置好的与所述参考值对 应的测量启动门限 s-Measure进行比较, 判断是否启动测量; 以及 所述启动模块, 用于根据所述判断模块的判断结果, 统一启动或 关闭除了所有工作载波和工作载波组之外的测量; 其中, 当所述参考值小于所述 s-Measure时, 统一启动除了所有 工作载波和工作载波组的测量, 当所述参考值大于或等于所述 s-Measure时, 统一关闭除了所有工作载波和工作载波组的测量。
13、 根据权利要求 12所述的 UE, 其特征在于, 所述 s-Measure 包括:
演进基站 eNB为所有工作载波统一配置的 s-Measure;
或者, 所述 eNB 分别为每个工作载波配置的各自独立的 s-Measure;
或者, 所述 eNB 分别为每个工作载波组配置的各自独立的 s-M63sure。
14、 根据权利要求 12所述的 UE, 其特征在于, 所述选择模块选 择信道质量最好的工作载波的信道质量作为参考值;
或者,所述选择模块选择信道质量最差的工作载波的信道质量作 为参考值;
或者,所述选择模块选择信道质量最好的工作载波组的信道质量 作为参考值;
或者,所述选择模块选择信道质量最差的工作载波组的信道质量 作为参考值;
或者,所述选择模块选择特殊小区 special cell的信道质量作为参 考值, 其中, 所述 special cell是为所述 UE提供安全参数输入和非接 入层 NAS移动信息的载波。
15、 根据权利要求 14所述的 UE, 其特征在于, 所述工作载波组 的信道质量为所述工作载波组内各个工作载波的信道质量的综合评 估结果, 其中, 所述综合评估结果包括各个工作载波的信道质量的代 数平均值或者加权平均值。
16、 根据权利要求 12至 15任一项所述的 UE, 其特征在于, 所 述工作载波和工作载波组包括配置但未被激活的载波。
17、 一种演进基站 eNB, 包含配置模块, 其中 所述配置模块, 用于为向用户终端 UE提供服务的载波和载波组 配置测量启动门限 s-Measure ,其中所述 s-Measure用于与所述 UE选 择的参考值相比, 当所述 s-Measure小于所述参考值时, 所述 UE统 一启动除了所有工作载波和工作载波组之外的测量, 当所述参考值大 于或等于所述 s-Measure时, 所述 UE统一关闭除了所有工作载波和 工作载波组之外的测量, 其中所述参考值为所述 UE 选择的与所述 s-Measure对应的一个工作载波或工作载波组的信道质量。
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