WO2013067783A1 - 层三过滤测量结果计算方法、装置和终端 - Google Patents

层三过滤测量结果计算方法、装置和终端 Download PDF

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Publication number
WO2013067783A1
WO2013067783A1 PCT/CN2012/071303 CN2012071303W WO2013067783A1 WO 2013067783 A1 WO2013067783 A1 WO 2013067783A1 CN 2012071303 W CN2012071303 W CN 2012071303W WO 2013067783 A1 WO2013067783 A1 WO 2013067783A1
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Prior art keywords
measurement
layer
terminal
last
measurement result
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PCT/CN2012/071303
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English (en)
French (fr)
Inventor
陈中明
黄亚达
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中兴通讯股份有限公司
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Publication of WO2013067783A1 publication Critical patent/WO2013067783A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0083Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085Hand-off measurements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports

Definitions

  • the invention relates to the technical field of digital mobile communication, and mainly relates to a method, a device and a terminal for calculating a layer three filtering measurement result.
  • cell reselection and handover are important functions.
  • the UE In order to successfully implement cell reselection, the UE needs to measure the signal quality of different cells in order to select a suitable cell to camp. After the UE establishes a connection with the network in a certain cell, the UE still needs to measure the signal quality of its neighboring cell, so as to select a suitable cell for handover to meet the mobility requirement.
  • the specific process of the measurement is:
  • the network side sends a measurement control message to the UE, where the measurement control message includes the measurement identifier, the measurement object, the configuration of the advertisement, and other related attributes of the measurement.
  • the UE performs measurement according to the measurement object in the measurement control message (that is, only performs measurement configured with the measurement task), and generates a measurement report to report to the network side according to the measurement result and the report configuration.
  • the measurement identifier is used as the index of the entire measurement configuration. It contains two sub-identities, the measurement object identifier and the report configuration identifier. Each sub-identifier contains its own related attributes.
  • the measurement object sub-ID contains the measurement object attributes (such as carrier frequency, neighbor Zone list, etc.)
  • the report configuration sub-identity contains report configuration attributes (such as event trigger or periodic report, triggered event definition (Al, A2%), trigger time (Time To Trigger, TTT), number of reports, etc.)
  • Other configurations are independent of the measurement object and report configuration, such as RSRP (Reference Signal Received Power, reference signal received power, in dBm) and RSRQ (Reference Signal Received Quality, reference signal received quality, in dB) filter factor k .
  • the carrier frequency of the measurement object it is divided into the same frequency measurement and the inter-frequency measurement. That is, the carrier frequency of the measurement object is the same as the carrier frequency of the serving cell, and the carrier frequency of the measurement object and the carrier cell are located.
  • the different frequency is the inter-frequency measurement, and the different system measurement refers to the measurement task that the measurement object is not E-UTRAN.
  • the UE can perform measurements directly without the need for a measurement gap.
  • the UE may need to configure the measurement interval on the network side according to its own capability, that is, the specified time period. During this time, the UE temporarily interrupts the communication with the serving cell to perform the inter-frequency. Measurement of different systems.
  • the base station configures the measurement interval to the UE through an RRC reconfiguration message.
  • the carrier frequency of the serving cell refers to the central frequency point at which the UE communicates with the serving cell.
  • the terminal only performs measurements that are configured with measurement IDs. During the measurement process, in order to save power, when the signal quality of the serving cell is higher than the threshold S-measure, the terminal may not perform the neighboring cell measurement.
  • the base station can be added or deleted by reconfiguration. When the terminal is inter-frequency switched or re-established, if the frequency of the target cell is not in the measurement configuration of the source cell, the terminal deletes the relevant measurement task. .
  • Different measurement methods are used for the measurement of different objects (which ultimately correspond to cells), which are set by the network side, called measurement quantity, to reflect the signal quality of the cell.
  • the UE measures RSRP or RSRQ.
  • the measurement result of the measurement object is evaluated to satisfy the event entry condition (for example, the neighboring cell signal quality is better than the threshold), and the duration is equal to or greater than the TTT, it is considered to satisfy the event trigger.
  • the measurement object of the condition When the measurement object satisfies the trigger condition of the event, the measurement report is reported to the network side, and the measurement object in the report report is sorted according to the measurement quantity set by the network, and the optimal one is in front.
  • the current valid measurement result is reported to the network side when there is a valid measurement result or a periodic report timer timeout.
  • the terminal records the cell that has reported the measurement report. If the measurement result of the cell still meets the event trigger condition, the measurement report will not be triggered again.
  • the specific process of the terminal measurement is: the network side sends a measurement control message to the UE, where the measurement control message includes the measurement identifier, the measurement object, the report configuration, and other related attributes of the measurement. .
  • the UE performs measurement according to the measurement object in the measurement control message (that is, only performs measurement configured with the measurement task), and performs layer 3 filtering on the measurement result, and after measuring the filtered result, the measurement result is generated.
  • the network side sends a measurement control message to the UE, where the measurement control message includes the measurement identifier, the measurement object, the report configuration, and other related attributes of the measurement.
  • the UE performs measurement according to the measurement object in the measurement control message (that is, only performs measurement configured with the measurement task), and performs layer 3 filtering on the measurement result, and after measuring the filtered result, the measurement result is generated.
  • the network side sends a measurement control message to the UE, where the measurement control message includes the measurement identifier, the measurement object, the report configuration, and other
  • Fn is the latest measurement result measured by layer three filtering
  • Mn is the latest measurement result of the physical layer
  • a l/2(k/4)
  • k is the filter factor, configured by the base station, and represents the historical measurement result (that is, the last measurement result filtered by the layer three, the result contains the last measurement result) and the proportion of the latest measurement result.
  • the technical problem to be solved by the present invention is to provide a layer three filter measurement result calculation method, device and terminal to solve the problem that the measurement report is jittered.
  • the present invention provides a layer three filtering measurement result calculation method, and the terminal performs the following steps while continuously in the connected state:
  • the measurement information obtained at the next time layer is calculated using the measurement information obtained last.
  • the situation of stopping the measurement comprises: the signal quality of the serving cell is higher than a specified threshold, the measurement configuration is deleted, or the measurement interval is deleted.
  • the last obtained measurement information includes the last calculated layer 3 filtered measurement result, or includes the last reported measurement result of the physical layer when the measurement is stopped, and the last obtained result of the last reported measurement result of the physical layer.
  • Layer 3 filtered results are preferably provided.
  • the present invention provides a layer three filter measurement result calculation device, the device comprising:
  • the measurement information maintenance module is configured to: save the last obtained measurement information when the terminal is in the connected state and the measurement is stopped;
  • the measurement result calculation module is configured to: when the terminal is continuously in the connected state, and the measurement is restarted after the measurement is stopped, the last time measurement information is used to calculate the next time layer three filter After the measurement results.
  • the situation of stopping the measurement comprises: the signal quality of the serving cell is higher than a specified threshold, the measurement configuration is deleted, or the measurement interval is deleted.
  • the last obtained measurement information includes the last calculated layer 3 filtered measurement result, or includes the last 3 ⁇ 4 measurement result of the physical layer when the measurement is stopped, and the last measurement result of the physical layer.
  • the obtained layer 3 was filtered after measurement.
  • the measurement information maintenance module is further configured to delete all saved measurement information after the terminal leaves the connected state.
  • the present invention provides an apparatus for operating a layer three filtering measurement result calculation program, the apparatus comprising:
  • a memory which is set to: store instructions
  • processor coupled to the memory, the processor being configured to execute an instruction stored in the memory, wherein the processor is configured to be set to: when the terminal is continuously in a connected state, to save the last Measurement information;
  • the measurement information obtained at the next time layer is calculated using the measurement information obtained last.
  • the last obtained measurement information includes the last calculated layer 3 filtered measurement result, or includes the last reported result of the physical layer when the measurement is stopped, and the layer finally obtained before the last reported measurement result of the physical layer.
  • the present invention provides a terminal, where the terminal includes:
  • a measurement module which is configured to: perform measurement to obtain measurement information
  • a measurement information maintenance module configured to: save the last obtained measurement information when the terminal is in a connected state and stops measuring;
  • a measurement result calculation module configured to: when the terminal is continuously in a connected state, and the measurement is restarted after the measurement is stopped, the measurement information obtained at the next time layer is calculated by using the last obtained measurement information;
  • the measurement result evaluation reporting module is set as: a measurement obtained by the measurement result calculation module The quantity result is evaluated and judged to be reported to the network side when it meets the reporting conditions.
  • the last obtained measurement information includes a layer 3 filtered measurement result finally calculated by the measurement result calculation module, or includes a measurement result finally obtained by the measurement module when the measurement is stopped, and the measurement module obtains the final result.
  • the method, the device and the terminal of the embodiment of the present invention store the last obtained measurement information when the terminal is in the connected state and stop the measurement; and when the measurement is restarted, the last measurement information is used to calculate the measurement after the next time layer 3 filtering. As a result, the smoothness and continuity of the measurement results are ensured, and the jitter of the measurement report is avoided.
  • Figure 1 is a schematic view of a conventional measurement process
  • FIG. 2 is a schematic diagram of a method for calculating a layer three filter measurement result according to the present invention
  • FIG. 3 is a schematic diagram of a layer three filter measurement result calculation device of the present invention.
  • FIG. 4 is a block diagram showing the structure of a terminal of the present invention.
  • the terminal may not perform neighbor cell measurement.
  • the measurement gap is required, and the base station does not configure the measurement interval, the terminal does not perform the relevant measurement, and waits until the measurement interval configuration is received, and then the relevant measurement is started. Otherwise, if the base station deletes the measurement interval, the terminal The relevant measurements will be stopped.
  • the terminal deactivates the measurement interval first. If the base station needs the terminal to continue measurement, the measurement interval needs to be reconfigured. Similarly, the base station can delete the measurement interval by reconfiguration, which also causes the terminal to stop performing measurements.
  • the base station can delete the measurement task by reconfiguration, and the terminal does not perform the measurement of the relevant measurement task.
  • the terminal deletes some measurement tasks, and correspondingly, the terminal does not perform the measurement of the related deleted measurement tasks.
  • the connected terminal stops measuring for some reason (such as the service cell mentioned above)
  • the quality of the number is higher than S-measure, or when the measurement configuration is deleted when switching reconfiguration is repeated, or the measurement gap is deleted when switching reconfiguration, etc.
  • the physical layer measurement result is received for the first time after the measurement is restarted next time. If still make F.
  • Ml is used, the continuity of the measurement results is destroyed.
  • the purpose of introducing the L3 filter is mainly to avoid the jitter of the measurement report caused by a large difference in a certain measurement result, and in the terminal measurement process. In the above, the measurement result should be smooth, and a wide range of changes should not occur. In view of this, the present invention improves the calculation method of the layer three filter measurement result when the terminal restarts measurement in the connected state.
  • the calculation method of the layer 3 filter measurement result of the present invention is implemented by the terminal. As shown in FIG. 2, the following steps are performed while the terminal is continuously in the connected state:
  • Step 201 When the measurement is stopped, the last obtained measurement information is saved;
  • Step 202 When the measurement is restarted, the measurement result of the next time layer three filtering is calculated by using the last obtained measurement information.
  • the last obtained measurement information includes the measurement result finally reported by the physical layer when the measurement is stopped, and the layer 3 filtered measurement result finally obtained before the measurement result finally reported by the physical layer.
  • the last obtained measurement information may also be the last calculated layer 3 filtered measurement result.
  • Mn in Equation 1 is the measurement result of the physical layer received at this time
  • Fn-i is the result of the layer 3 filtering saved before the terminal stops measuring.
  • Some of the above reasons include that the signal quality of the serving cell is higher than S-measure, or the measurement configuration is deleted when switching or reconfiguring reconfiguration, or the measurement gap is deleted when switching or reconfiguring reconfiguration.
  • the triggering event of the measurement task in the following embodiments may be the current and subsequent testing defined in LTE.
  • the quantity events such as A3, A5, A6, Bl, B2 are not limited to the measurement events such as A4 involved in the embodiment.
  • the UE1 is in the connected state, and the carrier frequency of the current serving cell is fl, and the network side sends a measurement control message to the UE1, where the measurement control message includes a measurement task: the measurement identifier is 1, the measurement object is the cell on the fl, and the configuration is configured.
  • the event is triggered by the event A4 (the signal quality of the neighboring cell is better than the specified threshold, that is, the signal quality of the neighboring cell on the layer 3 after filtering is better than the specified threshold, and the measurement report is triggered).
  • the signal quality of the serving cell is higher than S-measure, the measurement of the neighboring area containing the measurement identifier 1 can be stopped.
  • the terminal After the measurement task is configured, the terminal starts to perform the measurement task, including the measurement of the measurement identifier 1, and searches for a cell 1 of the fl, and receives a total of three measurement results of the cell 1, as shown in the following table, After the measurement results are measured, the evaluation is evaluated, where F2 is higher than the specified threshold, and the measurement report is triggered. F3 is also higher than the specified threshold. However, since the measurement report has been reported at time T2, it is not reported:
  • the terminal After the T3 time, the terminal detects that the signal quality of the serving cell is higher than that of the S-measure, and the measurement of the neighboring cell stop includes the measurement identifier 1, that is, the measurement of the cell 1, and the terminal saves the F3.
  • the terminal detects that the signal quality of the serving cell is lower than S-measure, and the terminal restarts the measurement of the neighboring cell, including the measurement identifier 1, that is, the measurement of the cell 1, and receives a total of two measurement results.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the UE1 is in the connected state, the carrier frequency of the current serving cell is fl, and the network side sends a measurement control message to the UE1, where the measurement control message includes a measurement task: the measurement identifier is 1, and the measurement object is the cell on the £2, It is configured to trigger on event A4 (the signal quality of the neighboring cell is better than the specified threshold, that is, the signal quality of the neighboring cell on the layer 2 after the layer 3 filtering is better than the specified threshold, and the measurement report is triggered), and the terminal needs to perform the measurement of the G at the measurement interval.
  • the network side also configures the measurement interval for the terminal.
  • the terminal After the measurement task and the measurement interval are configured, the terminal starts to perform the measurement task including the measurement of the measurement identifier 1, and searches for the previous cell 2 of £2, and receives the two measurement results of the cell 2, as shown in the following table, The measurement results after the third layer filtering are evaluated by the measurement report.
  • F1 is higher than the specified threshold, and the measurement report is triggered.
  • F2 is also higher than the specified threshold. However, since the measurement report has been reported at time T1, it is not reported:
  • the base station deletes the measurement interval, and the measurement that the terminal stops the measurement interval includes the measurement identifier 1, that is, the measurement of the cell 2, and the terminal saves F2.
  • the terminal releases the measurement interval, and the measurement that stops the measurement interval includes the measurement identifier 1, that is, the measurement of the cell 2, the terminal saves F2, and waits for the reconfiguration measurement interval of the base station after the handover, and the subsequent process is consistent with the following.
  • the measurement interval is released, and the measurement that stops the measurement interval includes the measurement of the measurement identifier 1, that is, the measurement of the cell 2, the terminal saves the F2, and the reconfiguration measurement interval of the base station after the re-establishment, the subsequent process Consistent with the following.
  • the base station reconfigures the measurement interval, and the terminal restarts the measurement that requires the measurement interval, including the measurement identifier 1, that is, the measurement of the cell 2, and receives a total of two measurement results, as shown in the following table:
  • the results of the report are filtered and saved.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the UE1 is in the connected state, and the carrier frequency of the current serving cell is fl, and the network side sends a measurement control message to the UE1, where the measurement control message includes a measurement task: the measurement identifier is 1, the measurement object is the cell on the fl, and the configuration is configured.
  • the event is triggered by the event A4 (the signal quality of the neighboring cell is better than the specified threshold, that is, the signal quality of the neighboring cell on the layer 3 after filtering is better than the specified threshold, and the measurement report is triggered).
  • the terminal After the measurement task is configured, the terminal starts to perform the measurement task including the measurement of the measurement identifier 1, and searches for a cell 1 of the fl, and receives a total of two measurement results of the cell 1, as shown in the following table, After the measurement results are measured, the evaluation is evaluated, where F1 is higher than the specified threshold, and the measurement report is triggered. F2 is lower than the specified threshold and will not be reported to the base station:
  • the base station deletes the measurement task, such as the measurement identifier 1, and the terminal stops measuring the indicator 1, that is, the measurement of the cell 1, and the terminal saves the F2.
  • the terminal deletes the measurement identifier 1, stops measuring the measurement identifier 1, that is, the measurement of the cell 1, and the terminal saves the F2, and waits for the reconfiguration of the base station after the handover, and the subsequent process is consistent with the following; If the terminal is RRC reestablished to the cell 2 on the ⁇ at this time, the measurement identifier 1 is also deleted, and the measurement of the identifier 1 is stopped, and the terminal saves F2, and the reconfiguration of the base station after the reconstruction is completed, and the subsequent process is consistent with the following. .
  • the base station reconfigures the measurement task such as measurement identifier 1 (the measurement identifier can be changed to 2, but the measurement object does not change, it is still fl), and the terminal restarts to perform the measurement identification 1, that is, the measurement of the cell 1, and receives a total of 2 measurements.
  • the measurement identifier 1 the measurement identifier can be changed to 2, but the measurement object does not change, it is still fl
  • the terminal restarts to perform the measurement identification 1, that is, the measurement of the cell 1, and receives a total of 2 measurements.
  • the results of the report are filtered and saved.
  • the terminal leaves the connected state, and all the filtered results of layer 3 are deleted.
  • the present invention also provides a layer three filter measurement result calculation device, as shown in FIG. 3, the device includes:
  • a measurement information maintenance module configured to save the last obtained measurement information when the terminal is in the connected state and the measurement is stopped;
  • the measurement result calculation module is configured to calculate, after the terminal is continuously in the connected state, stop the measurement and restart the measurement, and use the last obtained measurement information to calculate the measurement result of the layer 3 after the next time.
  • the case of stopping the measurement as described above includes: the signal quality of the serving cell is higher than a specified threshold, the measurement configuration is deleted, or the measurement interval is deleted.
  • the last obtained measurement information includes the last calculated layer 3 filtered measurement result.
  • the last obtained measurement information includes a measurement result finally reported by the physical layer when the measurement is stopped, and a layer 3 filtered measurement result finally obtained before the measurement result finally reported by the physical layer.
  • the measurement information maintenance module is further configured to delete all saved measurement information after the terminal leaves the connected state.
  • an apparatus for operating a layer three filter measurement result calculation program comprising:
  • a memory for storing instructions
  • the last measurement information obtained is saved;
  • the measurement result obtained by the layer 3 after the next time is calculated by using the last obtained measurement information.
  • the last obtained measurement information includes the last calculated layer 3 filtered measurement result, or includes the last measured result of the physical layer when the measurement is stopped, and the layer finally obtained before the last reported measurement result of the physical layer. Three filtered measurements.
  • the present invention also provides a terminal for implementing the foregoing method. As shown in FIG. 4, the terminal includes:
  • a measuring module configured to perform measurement to obtain measurement information
  • a measurement information maintenance module configured to save the last obtained measurement information when the terminal is in a connected state and stops measuring
  • the measurement result calculation module is configured to calculate, after the terminal is continuously in the connected state, stop the measurement and restart the measurement, and use the last obtained measurement information to calculate the measurement result of the layer 3 after the next time;
  • the measurement result evaluation module is configured to evaluate the measurement result obtained by the measurement result calculation module, and report the report to the network side when the report condition is met.
  • the last obtained measurement information includes a layer 3 filtered measurement result finally calculated by the measurement result calculation module, or includes a measurement result finally obtained by the measurement module when the measurement is stopped, and the measurement module obtains the last The result of the layer 3 filtration obtained finally before the measurement result.
  • the method, the device and the terminal save the last obtained measurement information; and when the measurement is restarted, the measurement information obtained at the next time layer is calculated by using the finally obtained measurement information, and the measurement is ensured.
  • the smoothness and continuity of the measurement results avoid the jitter of the measurement report.
  • the method, device and terminal of the embodiment of the present invention store the last obtained measurement information when the terminal is in the connected state and stop measuring; and when the measurement is restarted, the last measurement information is used to calculate the next time layer three filtering.
  • the subsequent measurement results ensure the smoothness and continuity of the measurement results and avoid the jitter of the measurement report.

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Abstract

本发明涉及一种层三过滤测量结果计算方法、装置和终端,该方法中,终端持续处于连接态期间执行以下步骤:停止测量时,保存最后得到的测量信息;重新开始测量时,利用所述最后得到的测量信息计算下一时刻层三过滤后的测量结果。本发明方法、装置及终端可以避免测量报告的抖动。

Description

层三过滤测量结果计算方法、 装置和终端
技术领域
本发明涉及数字移动通信技术领域, 主要涉及层三过滤测量结果计算方 法、 装置和终端。
背景技术
在蜂窝移动通信系统中, 小区重选和切换是及其重要的功能。 为了顺利 实现小区重选, UE需要对不同小区的信号质量进行测量, 以便选择合适的小 区进行驻留。 当 UE在某个小区与网络建立连接之后, UE仍然需要对其相邻 小区的信号质量进行测量, 以便选择合适的小区进行切换, 满足移动性要求。
在连接态下, 测量的具体过程是: 网络侧将测量控制消息发送给 UE, 其 中, 该测量控制消息中包括测量标识、 测量对象、 ^艮告配置以及测量的其他 相关属性。 UE根据测量控制消息中的测量对象去执行测量 (即只执行配置了 测量任务的测量), 并根据测量结果和报告配置生成测量报告上报给网络侧。
测量标识作为整个测量配置的索引, 包含了两个子标识, 测量对象标识 和报告配置标识, 每个子标识又包含了各自的相关属性, 如测量对象子标识 包含了测量对象属性(如载频, 邻区列表等) , 报告配置子标识包含了报告 配置属性(如事件触发或周期上报, 触发的事件定义(Al、 A2... ) , 触发时 间 ( Time To Trigger, TTT ) , 上报次数等) , 其他配置与测量对象和报告配 置无关, 如 RSRP ( Reference Signal Received Power, 参考信号接收功率, 其 单位为 dBm )和 RSRQ ( Reference Signal Received Quality, 参考信号接收质 量, 其单位为 dB ) 的过滤因子 k。 根据测量对象所在的载频不同, 分为同频 测量和异频测量, 即测量对象的载频与服务小区所在的载频相同则为同频测 量, 测量对象的载频与服务小区所在的载频不同则为异频测量, 异系统测量 指的是测量对象不是 E-UTRAN的测量任务。 对于同频测量任务的测量, UE 可以直接执行测量, 不需要测量间隔 (measurement gap ) 。 对于异频异系统 的测量任务的测量, UE根据自身的能力, 可能需要网络侧配置测量间隔, 即 指定的一段时间,在这段时间内, UE暂时中断与服务小区的通讯去执行异频 异系统的测量。 如果需要配置测量间隔,基站通过 RRC重配消息将测量间隔 配置给 UE。服务小区所在的载频指的是 UE与该服务小区进行通讯的中心频 点。 终端只执行配置了测量标识的测量。 测量过程中, 为了省电, 当服务小 区的信号质量高于制定门限 S-measure后,终端可以不执行邻区测量。对于测 量任务的处理, 基站可以通过重配增加或删除, 当终端发生异频切换或重建 的时候, 如果目标小区所在的频率, 在源小区的测量配置中没有, 则终端会 删除相关的测量任务。
对测量对象(最终都对应为小区) 的测量不同的系统釆用不同的测量方 法, 由网络侧来设定, 称为测量量 ( measurement quantity ) , 用来反映小区 的信号质量。 比如在 LTE中, UE测量的是 RSRP或 RSRQ。
对于事件触发的测量任务, 当测量对象的测量结果进行评估的结果是满 足事件的准入条件 (比如邻区信号质量优于门限) , 并且持续时间等于或大 于 TTT时才被认为是满足事件触发条件的测量对象。 当有测量对象满足事件 的触发条件后, 上报测量报告给网络侧, 上报报告中的测量对象是根据网络 设定的测量量来排序的, 最优的在前面。
对于周期上报的测量任务, 当存在有效的测量结果或周期上报定时器超 时则将当前有效的测量结果上报给网络侧。 终端会将上报过测量报告的小区 记录下来, 如果下次该小区的测量结果仍然满足事件触发的条件, 则不会再 次触发测量报告。
发明内容
如图 1所示, 在连接态下, 终端测量的具体过程是: 网络侧将测量控制 消息发送给 UE, 其中, 该测量控制消息中包括测量标识、 测量对象、 报告配 置以及测量的其他相关属性。 UE根据测量控制消息中的测量对象去执行测量 (即只执行配置了测量任务的测量) , 并对测量结果进行层三过滤, 对过滤 后的结果进行测量结果的评估后, 生成测量^艮告上 ^艮给网络侧。
上述进行测量评估的测量结果, 以及上 ^艮给网络侧的测量结果是对物理 层的测量结果进行层三过滤( Layer 3 filtering )后的, 即按照如下公式进行过 滤: Fn = {\ - a) - Fn_l + a -Mn 公式 1
其中, Fn是最新的经过层三过滤进行测量评估的测量结果, Mn是物理 层最新的测量结果, 是上一次经过层三过滤进行测量评估的测量结果, a = l/2(k/4) , k是过滤因子, 由基站配置, 代表着历史测量结果(即上一次经过 层三过滤的测量结果, 该结果包含了上上次的测量结果) 占最新测量结果的 比例。 第一次收到物理层测量结果的时候, FQ釆用 Ml。 相关技术中, 处于连 接态的终端停止测量后, 目前没有明确重新开始测量时 F。应该釆用什么值。
终端处于连接态的终端停止测量后, 如果重新开始测量时仍然釆用 Ml 表示 FQ, 会导致测量报告发生抖动。 鉴于此, 本发明要解决的技术问题是提 供一种层三过滤测量结果计算方法、 装置和终端, 以解决测量报告发生抖动 的问题。
为解决以上技术问题, 本发明提供了一种层三过滤测量结果计算方法, 终端持续处于连接态期间执行以下步骤:
停止测量时, 保存最后得到的测量信息;
重新开始测量时, 利用最后得到的测量信息计算下一时刻层三过滤后的 测量结果。
优选地, 停止测量的情形包括: 服务小区的信号质量高于指定门限、 测 量配置被删除或测量间隔被删除。
优选地, 所述最后得到的测量信息包括最后计算得到的层三过滤后的测 量结果, 或, 包括停止测量时物理层最后上报的测量结果以及所述物理层最 后上报的测量结果之前最后得到的层三过滤后的测量结果。
优选地, 所述终端离开连接态后, 删除所有保存的测量信息。
为解决以上技术问题, 本发明提供了一种层三过滤测量结果计算装置, 该装置包括:
测量信息维护模块, 其设置为: 在终端处于连接态且停止测量时, 保存 最后得到的测量信息;
测量结果计算模块, 其设置为: 在所述终端持续处于连接态, 停止测量 后又重新开始测量时, 利用所述最后得到的测量信息计算下一时刻层三过滤 后的测量结果。
优选地, 停止测量的情形包括: 服务小区的信号质量高于指定门限、 测 量配置被删除或测量间隔被删除。
优选地, 所述最后得到的测量信息包括最后计算得到的层三过滤后的测 量结果, 或, 包括停止测量时物理层最后上 >¾的测量结果以及所述物理层最 后上报的测量结果之前最后得到的层三过滤后的测量结果。
优选地, 所述测量信息维护模块, 还用于在终端离开连接态后, 删除所 有保存的测量信息。
为解决以上技术问题, 本发明提供了一种用于运行层三过滤测量结果计 算程序的装置, 所述装置包括:
存储器, 其设置为: 存储指令;
处理器, 与所述存储器耦合, 该处理器被配置为执行存储在所述存储器 的指令, 其中, 所述处理器被配置为在终端持续处于连接态期间设置为: 停止测量时, 保存最后得到的测量信息;
重新开始测量时, 利用最后得到的测量信息计算下一时刻层三过滤后的 测量结果。
优选地, 所述最后得到的测量信息包括最后计算得到的层三过滤后的测 量结果, 或包括停止测量时物理层最后上报的测量结果以及所述物理层最后 上报的测量结果之前最后得到的层三过滤后的测量结果。
为解决以上技术问题, 本发明提供了一种终端, 该终端包括:
测量模块, 其设置为: 进行测量获得测量信息;
测量信息维护模块, 其设置为: 在所述终端处于连接态且停止测量时, 保存最后得到的测量信息;
测量结果计算模块, 其设置为: 在所述终端持续处于连接态, 停止测量 后又重新开始测量时, 利用最后得到的测量信息计算下一时刻层三过滤后的 测量结果;
测量结果评估上报模块, 其设置为: 对所述测量结果计算模块得到的测 量结果进行评估, 判断符合上报条件时上报网络侧。
优选地, 所述最后得到的测量信息包括测量结果计算模块最后计算得到 的层三过滤后的测量结果, 或, 包括停止测量时所述测量模块最后获得的测 量结果以及所述测量模块获得最后的测量结果之前最后得到的层三过滤后的 测量结果。
本发明实施例的方法、 装置及终端在终端处于连接态且停止测量时, 保 存最后得到的测量信息; 并在重新开始测量时, 利用最后得到的测量信息计 算下一时刻层三过滤后的测量结果, 保证了测量结果的平滑性和连续性, 避 免了测量报告的抖动。
附图概述
图 1是现有测量过程示意图;
图 2是本发明层三过滤测量结果计算方法的示意图;
图 3是本发明层三过滤测量结果计算装置的示意图;
图 4是本发明终端的模块结构示意图。
本发明的较佳实施方式
测量过程中, 为了省电, 当服务小区的信号质量高于指定门限 S-measure 后, 终端可以不执行邻区测量。 另外, 如果终端执行测量需要测量间隔 ( measurement gap ) , 而基站没有配置测量间隔, 则终端不执行相关测量, 等到收到测量间隔配置后才启动相关测量, 反之, 如果基站删除测量间隔, 则终端将停止相关测量。 在切换或重建过程中, 终端会将测量间隔先去激活, 如果基站需要终端继续测量, 则需要重新配置测量间隔。 同样, 基站可以通 过重配删除测量间隔, 也会引起终端停止执行测量。 对于测量任务的处理, 基站可以通过重配删除测量任务, 终端则不执行相关测量任务的测量。 切换 或重建过程中, 终端会删除部分测量任务, 对应地, 终端也不执行相关的被 删除的测量任务的测量。
如果连接态的终端由于某种原因停止测量(如上述提到的服务小区的信 号质量高于 S-measure时,或切换重建重配时测量配置被删除,或切换重建重 配时 measurement gap被删除等), 下次重新开始测量后, 第一次收到物理层 测量结果, 如果仍然使得 F。釆用 Ml , 则测量结果的连续性受到破坏, 另夕卜, 当初引入 L3 filter的目的, 主要是为了避免某次测量结果出现比较大的差别 所引起的测量报告的抖动, 而且在终端测过程中, 测量结果应该是平滑的, 不应该出现大范围的变化, 鉴于此, 本发明对终端在连接态重新开始测量时 层三过滤测量结果计算方法进行了改进。
本发明层三过滤测量结果计算方法由终端实现, 如图 2所示, 当终端持 续处于连接态期间执行以下步骤:
步骤 201 : 停止测量时, 保存最后得到的测量信息;
步骤 202: 重新开始测量时, 利用所述最后得到的测量信息计算下一时 刻层三过滤后的测量结果。
所述最后得到的测量信息包括停止测量时物理层最后上报的测量结果以 及所述物理层最后上报的测量结果之前最后得到的层三过滤后的测量结果。
优选地, 所述最后得到的测量信息还可以是最后计算得到的层三过滤后 的测量结果。
当终端由于某些原因停止测量后, 将最后一次层三过滤的的测量结果保 存下来, 下次重新开始测量后, 收到物理层的测量结果进行层三评估时, 釆 用之前保留的测量结果来计算, 即公式 1 中的 Mn为此时收到的物理层的测 量结果, Fn-i是终端停止测量之前保存的层三过滤的结果。
上述某些原因包含服务小区的信号质量高于 S-measure, 或者切换、 重建 重配时测量配置被删除, 或者切换、 重建重配时 measurement gap被删除等。
如果终端离开连接态, 则保存的测量结果都删除。 即终端下次进入连接 态, 一切重新开始, 第一次收到物理层的测量结果时, 公式 1中 F0仍然釆用 Ml。
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。
以下实施例中测量任务的触发事件可以是当前以及后续 LTE中定义的测 量事件如 A3 , A5 , A6, Bl , B2, 不限定于实施例中所涉及的测量事件如 A4。 实施例一:
UE1处于连接态, 当前服务小区的载频为 fl , 网络侧发送测量控制消息 给 UE1 , 其中, 该测量控制消息中包括一个测量任务: 测量标识为 1 , 测量 对象为 fl上的小区, 告配置为事件 A4触发(邻区信号质量优于指定门限, 即层三过滤后的 fl上的邻接小区信号质量优于该指定门限后触发测量报告)。 同时指定 S-measure, 当服务小区的信号质量高于 S-measure时, 可以停止邻 区包含测量标识 1的测量。
配置了测量任务后, 终端开始执行测量任务包含测量标识 1的测量, 搜 索到 fl上一个小区 1 , 一共收到小区 1的 3个测量结果, 如下表所示, 釆用 每次经过层三过滤后的测量结果进行测量 ^艮告评估, 其中 F2高于指定门限, 触发测量报告, F3也高于指定门限, 但是由于 T2时刻已经上报过测量报告, 因此不再上报:
Figure imgf000009_0001
T3 时刻过后, 终端检测到服务小区的信号质量高于 S-measure, 终端停 止邻区的测量包含测量标识 1即小区 1的测量, 终端保存 F3。
T4 时刻, 终端检测到服务小区的信号质量低于 S-measure, 终端重新开 始执行邻区的测量包含测量标识 1即小区 1的测量,一共收到 2个测量结果,
^口下表所示:
Figure imgf000009_0002
T7时刻, 终端离开连接态, 所有的层三过滤后的测量结果都删除。
实施例二:
UE1处于连接态, 当前服务小区的载频为 fl , 网络侧发送测量控制消息 给 UE1 , 其中, 该测量控制消息中包括一个测量任务: 测量标识为 1 , 测量 对象为 £2上的小区, 告配置为事件 A4触发 (邻区信号质量优于指定门限, 即层三过滤后的 £2上的邻接小区信号质量优于该指定门限后触发测量报告 ), 终端需要测量间隔执行 G的测量。 网络侧同时给终端配置测量间隔。
配置了测量任务以及测量间隔后, 终端开始执行测量任务包含测量标识 1的测量, 搜索到 £2上一个小区 2, —共收到小区 2的 2个测量结果, 如下 表所示, 釆用每次经过层三过滤后的测量结果进行测量报告评估, 其中 F1高 于指定门限, 触发测量报告, F2也高于指定门限, 但是由于 T1 时刻已经上 报过测量报告, 因此不再上报:
Figure imgf000010_0001
T2时刻过后, 基站删除测量间隔, 终端停止需要测量间隔的测量包含测 量标识 1即小区 2的测量, 终端保存 F2。 此时, 如果发生切换, 终端将测量 间隔释放, 停止需要测量间隔的测量包含测量标识 1即小区 2的测量, 终端 保存 F2, 等待切换后基站的重新配置测量间隔, 后续流程跟下面的一致。 另 夕卜, 如果此时终端发生 RRC重建, 也是将测量间隔释放, 停止需要测量间隔 的测量包含测量标识 1即小区 2的测量, 终端保存 F2, 等待重建后基站的重 新配置测量间隔, 后续流程跟下面的一致。
T3时刻, 基站重新配置测量间隔, 终端重新开始执行需要测量间隔的测 量包含测量标识 1即小区 2的测量, 一共收到 2个测量结果, 如下表所示:
Figure imgf000010_0002
报的测量结果进行层三过滤的结果并保存下来的,
T5 M4 F4=(l-a)*F3+a*M4, 其中 F3为 T4时刻计算出来的
T6时刻, 终端离开连接态, 所有的层三过滤后的测量结果都删除。
实施例三:
UE1处于连接态, 当前服务小区的载频为 fl , 网络侧发送测量控制消息 给 UE1 , 其中, 该测量控制消息中包括一个测量任务: 测量标识为 1 , 测量 对象为 fl上的小区, 告配置为事件 A4触发(邻区信号质量优于指定门限, 即层三过滤后的 fl上的邻接小区信号质量优于该指定门限后触发测量报告)。
配置了测量任务后, 终端开始执行测量任务包含测量标识 1的测量, 搜 索到 fl上一个小区 1 , 一共收到小区 1的 2个测量结果, 如下表所示, 釆用 每次经过层三过滤后的测量结果进行测量 ^艮告评估, 其中 F1高于指定门限, 触发测量报告, F2低于指定门限, 不会上报给基站:
Figure imgf000011_0001
T2时刻过后, 基站删除测量任务如测量标识 1 , 终端停止测量标识 1即 小区 1的测量, 终端保存 F2。 此时, 如果终端切换到 β上的小区 2, 终端将 测量标识 1删除, 停止测量标识 1即小区 1的测量, 终端保存 F2, 等待切换 后基站的重新配置, 后续流程跟下面的一致; 另外, 如果此时终端发生 RRC 重建到 β上的小区 2, 也是将测量标识 1删除, 停止测量标识 1即小区 1的 测量, 终端保存 F2, 等待重建后基站的重新配置, 后续流程跟下面的一致。
Τ3时刻, 基站重新配置测量任务如测量标识 1 (测量标识可以改成 2, 但是测量对象没有变化, 仍然是 fl ) , 终端重新开始执行测量标识 1即小区 1的测量, 一共收到 2个测量结果, 如下表所示:
Figure imgf000011_0002
报的测量结果进行层三过滤的结果并保存下来的,
T5 M4 F4=(l-a)*F3+a*M4, 其中 F3为 T4时刻计算出来的
T6时刻, 终端离开连接态, 所有的层三过滤后的测量结果都删除。 釆用本方法, 使得终端由于某种原因停止测量后重新测量时, 可以更准 确地评估测量结果, 网络侧可以依据更准确的测量结果进行决策。
对应于以上方法, 本发明还提供了一种层三过滤测量结果计算装置, 如 图 3所示, 该装置包括:
测量信息维护模块, 用于在终端处于连接态且停止测量时, 保存最后得 到的测量信息;
测量结果计算模块, 用于在所述终端持续处于连接态, 停止测量后又重 新开始测量时, 利用最后得到的测量信息计算下一时刻层三过滤后的测量结 果。
如上所述停止测量的情形包括: 服务小区的信号质量高于指定门限、 测 量配置被删除或测量间隔被删除。
优选地, 所述最后得到的测量信息包括最后计算得到的层三过滤后的测 量结果。
可选地, 所述最后得到的测量信息包括停止测量时物理层最后上报的测 量结果以及所述物理层最后上报的测量结果之前最后得到的层三过滤后的测 量结果。
进一步地, 所述测量信息维护模块, 还用于在终端离开连接态后, 删除 所有保存的测量信息。
另外, 还提供了一种用于运行层三过滤测量结果计算程序的装置, 所述 装置包括:
存储器, 用于存储指令;
处理器, 与所述存储器耦合, 该处理器被配置为执行存储在所述存储器 的指令, 其中, 所述处理器被配置为在终端持续处于连接态期间用于:
停止测量时, 保存最后得到的测量信息; 重新开始测量时, 利用所述最后得到的测量信息计算下一时刻层三过滤 后的测量结果。
进一步地, 所述最后得到的测量信息包括最后计算得到的层三过滤后的 测量结果, 或包括停止测量时物理层最后上报的测量结果以及所述物理层最 后上报的测量结果之前最后得到的层三过滤后的测量结果。
本发明还提供了一种用于实现前述方法的终端, 如图 4所示, 该终端包 括:
测量模块, 用于进行测量获得测量信息;
测量信息维护模块, 用于在所述终端处于连接态且停止测量时, 保存最 后得到的测量信息;
测量结果计算模块, 用于在所述终端持续处于连接态, 停止测量后又重 新开始测量时, 利用最后得到的测量信息计算下一时刻层三过滤后的测量结 果;
测量结果评估上^艮模块, 用于对所述测量结果计算模块得到的测量结果 进行评估, 判断符合上报条件时上报网络侧。
进一步地, 所述最后得到的测量信息包括测量结果计算模块最后计算得 到的层三过滤后的测量结果, 或, 包括停止测量时所述测量模块最后获得的 测量结果以及所述测量模块获得最后的测量结果之前最后得到的层三过滤后 的测量结果。
本发明方法、 装置及终端在终端处于连接态且停止测量时, 保存最后得 到的测量信息; 并在重新开始测量时, 利用最后得到的测量信息计算下一时 刻层三过滤后的测量结果, 保证了测量结果的平滑性和连续性, 避免了测量 报告的抖动。
上述的具体实施方式仅是为理解本发明方便而提供的优选实施例, 不能 理解为限定本发明, 因此由本发明权利要求所覆盖的一切技术方案均在本发 明的要求权利之列。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
工业实用性 本发明实施例的方法、 装置及终端在终端处于连接态且停止测量时, 保 存最后得到的测量信息; 并在重新开始测量时, 利用最后得到的测量信息计 算下一时刻层三过滤后的测量结果, 保证了测量结果的平滑性和连续性, 避 免了测量报告的抖动。

Claims

权 利 要 求 书
1、 一种层三过滤测量结果计算方法,终端持续处于连接态期间执行以下 步骤:
停止测量时, 保存最后得到的测量信息;
重新开始测量时, 利用所述最后得到的测量信息计算下一时刻层三过滤 后的测量结果。
2、 如权利要求 1所述的方法, 其中, 停止测量的情形包括: 服务小区的 信号质量高于指定门限、 测量配置被删除或测量间隔被删除。
3、 如权利要求 1所述的方法,其中, 所述最后得到的测量信息包括最后 计算得到的层三过滤后的测量结果, 或, 包括停止测量时物理层最后上报的 测量结果以及所述物理层最后上报的测量结果之前最后得到的层三过滤后的 测量结果。
4、 如权利要求 1所述的方法, 其中, 所述终端离开连接态后, 删除所有 保存的测量信息。
5、 一种层三过滤测量结果计算装置, 该装置包括:
测量信息维护模块, 其设置为: 在终端处于连接态且停止测量时, 保存 最后得到的测量信息;
测量结果计算模块, 其设置为: 在所述终端持续处于连接态, 停止测量 后又重新开始测量时, 利用最后得到的测量信息计算下一时刻层三过滤后的 测量结果。
6、 如权利要求 5所述的装置, 其中, 停止测量的情形包括: 服务小区的 信号质量高于指定门限、 测量配置被删除或测量间隔被删除。
7、 如权利要求 5所述的装置,其中, 所述最后得到的测量信息包括最后 计算得到的层三过滤后的测量结果, 或, 包括停止测量时物理层最后上报的 测量结果以及所述物理层最后上报的测量结果之前最后得到的层三过滤后的 测量结果。
8、 如权利要求 5所述的装置, 其中, 所述测量信息维护模块还设置为: 在终端离开连接态后, 删除所有保存的测量信息。
9、 一种用于运行层三过滤测量结果计算程序的装置,其中, 所述装置包 括:
存储器, 其设置为: 存储指令; 处理器, 与所述存储器耦合, 该处理器被配置为执行存储在所述存储器 的指令, 其中, 所述处理器被配置为在终端持续处于连接态期间设置为: 停止测量时, 保存最后得到的测量信息;
重新开始测量时, 利用所述最后得到的测量信息计算下一时刻层三过滤 后的测量结果。
10、 如权利要求 9所述的装置, 其中, 所述最后得到的测量信息包括最 后计算得到的层三过滤后的测量结果, 或包括停止测量时物理层最后上报的 测量结果以及所述物理层最后上报的测量结果之前最后得到的层三过滤后的 测量结果。
11、 一种终端, 该终端包括:
测量模块, 其设置为: 进行测量获得测量信息;
测量信息维护模块, 其设置为: 在所述终端处于连接态且停止测量时, 保存最后得到的测量信息;
测量结果计算模块, 其设置为: 在所述终端持续处于连接态, 停止测量 后又重新开始测量时, 利用所述最后得到的测量信息计算下一时刻层三过滤 后的测量结果;
测量结果评估上报模块, 其设置为: 对所述测量结果计算模块得到的测 量结果进行评估, 判断符合上报条件时上报网络侧。
12、 如权利要求 11所述的终端,其中, 所述最后得到的测量信息包括测 量结果计算模块最后计算得到的层三过滤后的测量结果, 或, 包括停止测量 时所述测量模块最后获得的测量结果以及所述测量模块获得最后的测量结果 之前最后得到的层三过滤后的测量结果。
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