WO2014190885A1 - 一种载波聚合辅载波激活与去激活方法及装置 - Google Patents

一种载波聚合辅载波激活与去激活方法及装置 Download PDF

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Publication number
WO2014190885A1
WO2014190885A1 PCT/CN2014/078426 CN2014078426W WO2014190885A1 WO 2014190885 A1 WO2014190885 A1 WO 2014190885A1 CN 2014078426 W CN2014078426 W CN 2014078426W WO 2014190885 A1 WO2014190885 A1 WO 2014190885A1
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Prior art keywords
activation
scc
mac
rlc
deactivation
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PCT/CN2014/078426
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English (en)
French (fr)
Inventor
左晓
张龙
周宇恒
毛博雅
赵英瑞
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大唐移动通信设备有限公司
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Priority to US14/894,330 priority Critical patent/US9794819B2/en
Priority to EP14804104.9A priority patent/EP3007502B1/en
Publication of WO2014190885A1 publication Critical patent/WO2014190885A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/50—Network services
    • H04L67/56—Provisioning of proxy services
    • H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands

Definitions

  • Carrier aggregation technology is introduced in LTE-Advanced (Long Term Evolution-Advanced) to solve the demand for frequency band resources of the LTE-Advance system by using two or more basic carriers.
  • LTE-Advanced Long Term Evolution-Advanced
  • carrier aggregation each UE (User Equipment) may be allocated as multiple CCs (carriers) for larger data volume transmission.
  • the UE After the SCC (Secondary Component Carrier, hereinafter referred to as the secondary carrier) is activated, the UE sends an SRS (Sounding Reference Symbol) on the SCell (Secondary Cell) according to the configuration, and reports the CQI/ The UE also monitors the PDCCH (Physical Downlink Control Channel) on the SCell by the PMI/RI (Channel Quality Indicator, Precoding Matrix Indicator, Precoding Matrix Indicator). The amount of data in the UE is not large. When the SCC does not need to be used, the UE still performs blind detection continuously, which consumes the power of the UE and reduces the efficiency. In this case, the SCC needs to be deactivated.
  • SRS Sounding Reference Symbol
  • PDCCH Physical Downlink Control Channel
  • the UE will:
  • the UE stops transmitting SRS on the SCell
  • the UE stops monitoring the PDCCH on the SCell
  • the UE stops monitoring the control information of the SCell on the PDCCH of the scheduling carrier. After the UE is activated by the SCC, it will:
  • the UE transmits the SRS on the SCell according to the configuration
  • the UE monitors the PDCCH on the SCell, and receives the PDSCH data according to the scheduling information; (4) During cross-carrier scheduling, the UE monitors the control information of the SCell on the PDCCH of the scheduling carrier.
  • a carrier aggregation secondary carrier activation method includes:
  • the determining to reach the monitoring condition is specifically:
  • the performing SCC activation specifically includes:
  • the MAC transmits a carrier aggregation on the primary carrier to activate the media access control control element MAC CE;
  • the MAC After determining that the downlink data packet in which the MAC CE is located is correctly transmitted, the MAC sends a secondary carrier activation message to the primary cell RLC and the secondary carrier cell MAC.
  • the method further includes:
  • the MAC receives the amount of buffered data reported by the RLC again;
  • the MAC multiplies the amount of buffer data reported by the RLC again by a preset coefficient, and performs resource scheduling according to the calculation result.
  • a carrier aggregation secondary carrier deactivation method includes:
  • Media access control MAC monitoring radio link control The amount of buffered data reported by the RLC, and when the amount of data is less than the deactivated data threshold, the secondary member carrier SCC is deactivated to count the counter;
  • the determining to reach the monitoring condition is specifically:
  • the performing the SCC deactivation comprises:
  • the MAC sends a carrier aggregation on the primary carrier to activate the MAC CE;
  • the MAC After the MAC determines that the downlink data packet in which the MAC CE is located is correctly transmitted, the MAC sends the secondary carrier deactivation message to the primary cell RLC and the secondary carrier cell MAC.
  • a carrier aggregation secondary carrier activation device includes:
  • the monitoring unit is configured to monitor the amount of buffered data reported by the radio link control RLC, and increase the counter value of the secondary component carrier SCC activation counter when the data volume reaches the activation data threshold;
  • the activation unit is configured to determine that when the monitoring condition is reached, if the ratio of the count value of the SCC activation counter to the number of reported RLC reaches the set activation threshold, SCC activation is performed.
  • the activation unit determines that the monitoring condition is reached as follows:
  • the activation unit determines that the monitoring period is reached.
  • the activation unit determines that the number of times the RLC has reached a set threshold.
  • the activating unit performs SCC activation, and specifically includes:
  • the secondary carrier activation message is sent to the primary cell RLC and the secondary carrier cell MAC.
  • the activation unit is further configured to:
  • resource scheduling is performed based on the calculation result.
  • a carrier aggregation secondary carrier activation device includes:
  • a processor configured to execute a computer program having the following functions: monitoring a quantity of each cached data reported by the radio link control RLC, and increasing a secondary member carrier SCC activation counter when the amount of data reaches an active data amount threshold Counting value; determining that when the monitoring condition is reached, if the ratio of the count value of the SCC activation counter to the number of times reported by the RLC reaches the set activation threshold, SCC activation is performed;
  • a memory configured to hold code of the above computer program.
  • a carrier aggregation secondary carrier deactivation device includes:
  • the deactivation unit is configured to determine that the SCC deactivation is performed if the ratio of the count value of the SCC deactivation counter to the number of RLC reports reaches the set deactivation threshold when the monitoring condition is reached.
  • the deactivation unit determines that the monitoring condition is reached as follows: Deactivating the unit determines that the monitoring period is reached; or
  • the deactivation unit determines that the number of reports of the RLC reaches a set threshold.
  • the deactivation unit performs SCC deactivation, which specifically includes:
  • Carrier aggregation is performed on the primary carrier to activate the MAC CE
  • the secondary carrier deactivation message is sent to the primary cell.
  • a carrier aggregation secondary carrier deactivation device includes:
  • a processor configured to execute a computer program having the following functions: monitoring a quantity of each cached data reported by the radio link control RLC, and adding a secondary member carrier SCC to deactivate when the amount of data is less than a deactivated data amount threshold The counter value of the counter; when the monitoring condition is reached, if the ratio of the count value of the SCC deactivation counter to the number of reported RLC times reaches the set deactivation threshold, SCC deactivation is performed;
  • a memory configured to hold code of the above computer program.
  • the embodiment of the present invention provides a method and a device for activating and deactivating a carrier-assisted secondary carrier.
  • the RLC Radio Link Control
  • the secondary carrier is no longer directly activated. Rather, the count value of the SCC activation counter is increased, and when the monitoring condition is reached, if the ratio of the count value of the SCC activation counter to the number of times reported by the RLC reaches the set activation threshold, the amount of cached data that has been reported multiple times is activated.
  • the data volume threshold at this time, SCC activation is performed, avoiding activation and deactivation for multiple times in a short time, and improving the stability of the secondary carrier rate.
  • FIG. 2 is a flowchart of a carrier aggregation secondary carrier deactivation method according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a carrier aggregation secondary carrier activation apparatus according to an embodiment of the present disclosure
  • FIG. 4 is a schematic structural diagram of a carrier aggregation secondary carrier deactivation apparatus according to an embodiment of the present disclosure.
  • the embodiments of the present invention provide a carrier aggregation secondary carrier activation and deactivation method and device.
  • the SCC activation counter is added. Counting the value, and determining that the monitoring condition is reached, if the ratio of the count value of the SCC activation counter to the number of times reported by the RLC reaches the set activation threshold, it indicates that the amount of cache data of the multiple times has reached the activation data threshold.
  • the SCC is activated, the activation and deactivation are avoided multiple times in a short time, and the secondary carrier rate stability is improved.
  • a carrier aggregation secondary carrier activation method includes: Step S101: The MAC (Media Access Control) monitors the amount of buffered data reported by the RLC, and increases the count value of the SCC activation counter when the amount of data reaches the activation data threshold.
  • the MAC Media Access Control
  • Step S102 When it is determined that the monitoring condition is reached, if the ratio of the count value of the SCC activation counter to the number of reported RLC times reaches the set activation threshold, SCC activation is performed.
  • the carrier aggregation secondary carrier activation method is usually performed by a primary carrier MAC.
  • the ratio of the count value of the SCC activation counter to the number of times reported by the RLC reaches the set activation threshold, it indicates that the amount of buffered data on the RLC is large, and the SCC activation is performed again, which is not easy after activation. It is deactivated in a short time, so the secondary carrier rate stability is improved.
  • the set monitoring condition may be that the monitoring period is reached or the number of times of reporting of the RLC reaches a set threshold. In this step, in step S102, it is determined that the monitoring condition is met as follows:
  • the MAC may send a carrier aggregation to activate the MAC CE on the primary carrier. After determining that the downlink data packet of the MAC CE is transmitted correctly, the MAC sends the secondary carrier activation message to the primary cell RLC and the secondary carrier cell MAC.
  • the primary carrier MAC multiplies the buffered data amount reported by the RLC again by a preset coefficient, and then performs resource scheduling according to the calculation result.
  • the coefficient can be set in advance according to the current environment and business conditions of the user, and is usually set between 0.5 and 0.8.
  • the embodiment of the present application further provides a carrier aggregation secondary carrier deactivation method, as shown in FIG. 2, including:
  • Step S201 The MAC monitors the amount of buffered data reported by the RLC, and increases the count value of the SCC deactivation counter when the amount of data is less than the threshold of the deactivated data volume;
  • Step S202 When it is determined that the monitoring condition is reached, if the ratio of the count value of the SCC deactivation counter to the number of reported RLC times reaches the set deactivation threshold, the SCC is deactivated.
  • the carrier aggregation secondary carrier deactivation method is usually performed by a primary carrier MAC.
  • step S202 determining that the monitoring condition is met is specifically:
  • step S202 performing SCC deactivation includes:
  • the MAC sends a carrier aggregation on the primary carrier to activate the MAC CE;
  • the MAC After the MAC determines that the downlink data packet in which the MAC CE is located is correctly transmitted, the MAC sends a secondary carrier deactivation message to the primary cell RLC and the secondary carrier cell MAC.
  • the following thresholds and counters can be set:
  • ScellActiveThroughputThr Activates the data threshold.
  • the SCC activation counter is incremented by 1.
  • ScellActiveThr Activates the SCC threshold percentage. After the calculated ratio exceeds the active SCC threshold percentage, the SCC is activated.
  • BoMonitorNum The number of times the RLC reports the amount of cached data.
  • the MAC can know the current service data of the UE and whether the activation/deactivation threshold is reached, thereby notifying the UE and the PCell RLC and SCell MAC subcarriers.
  • the MAC monitors the amount of buffered data reported by the RLC, updates the value of the relevant counter, and calculates the value of the counter during the monitoring period to determine whether the percentage of activation or deactivation has been reached.
  • the MAC After determining that the downlink packet transmission of the SCC is activated/deactivated, the MAC informs the RLC and the SCell MAC of the SCC state through the interface message, and continues to monitor the BO value on the RLC.
  • the carrier aggregation secondary carrier activation and deactivation method includes:
  • Step 1 Before the secondary carrier is inactive, the MAC monitors the amount of buffered data (ie, the BO value) reported by the RLC by using the monitoring duration T as a periodic interval, and clears the secondary carrier activation counter and the monitoring number counter at the beginning of the monitoring period. .
  • Step 2 If the amount of data is greater than the active data threshold ScellActiveThroughputThr, both SccActiveNum and BoMonitorNum are incremented by one. If the amount of data is less than the active data threshold ScellActiveThroughputThr, only BoMonitorNum is enabled;
  • Step 2 When the period T is reached, if SccActiveNum I BoMonitorNum * 100% > ScellActiveThr, the MAC sends a carrier aggregation to activate the MAC CE on the primary carrier, and determines that the downlink packet transmission of the MAC CE is correct. Afterwards, the MAC sends a secondary carrier activation message to the primary cell RLC and the secondary carrier cell MAC;
  • Step 3 After the SCC is activated, when the primary and secondary carrier MACs receive the BO for scheduling, in order to avoid excessive resource allocation, the BO quantity of the RLC report needs to be multiplied by a preset coefficient, and then the resource allocation is performed according to the obtained value;
  • Step 4 After the SCC is activated, the MAC will continue to monitor the value of the BO reported by the RLC. If the amount of data is less than the deactivated data threshold, ScellDeActiveThroughputThr, SccDeActiveNum and BoMonitorNum are equal. 1. If the amount of data is greater than the threshold ScellDeActiveThroughputThr, only BoMonitorNum is incremented by one;
  • Step 5 When the set period T is reached, if the SccDeActiveNum I BoMonitorNum * 100% > ScellDeActiveThr, the MAC sends a carrier aggregation on the primary carrier to deactivate the MAC CE. After determining that the downlink packet transmission of the MAC CE is correct, the MAC will be supplemented.
  • the carrier deactivation message is sent to the primary cell RLC and the secondary carrier cell based on the same inventive concept.
  • the embodiment of the present application further provides a carrier aggregation secondary carrier activation device, which may be specifically a MAC. As shown in FIG. 3, the device includes:
  • the activation monitoring unit 301 is configured to monitor the amount of buffered data reported by the RLC, and increase the count value of the SCC activation counter when the amount of data reaches the activation data threshold;
  • the activation unit 302 is configured to determine that when the monitoring condition is reached, if the ratio of the count value of the SCC activation counter to the number of reported RLC reaches the set activation threshold, the SCC is activated.
  • the activation unit 302 determines that the monitoring condition is reached as follows:
  • the activation unit determines that the monitoring period is reached.
  • the activation unit determines that the number of reports of the RLC reaches a set threshold.
  • the activation unit 302 performs SCC activation, and specifically includes:
  • the secondary carrier activation message is sent to the primary cell RLC and the secondary carrier cell MAC.
  • the activation unit 302 is also used to:
  • the resource scheduling is performed according to the calculation result.
  • the embodiment of the present application further provides a carrier aggregation secondary carrier deactivation device, and the device may also be specifically a MAC. As shown in FIG. 4, the device includes:
  • the deactivation monitoring unit 401 is configured to monitor the amount of buffered data reported by the RLC, and increase the count value of the SCC deactivation counter when the amount of data is less than the deactivated data threshold;
  • the deactivation unit 402 is configured to determine that when the monitoring condition is reached, if the ratio of the count value of the SCC deactivation counter to the number of reported RLC reaches the set deactivation threshold, the SCC is deactivated.
  • the deactivation unit 402 determines that the monitoring condition is reached as follows: Deactivation unit determines that the monitoring period is reached; or
  • the deactivation unit determines that the number of reports of the RLC reaches a set threshold.
  • the deactivation unit 402 performs SCC deactivation, which specifically includes:
  • Carrier aggregation is performed on the primary carrier to activate the MAC CE
  • the secondary carrier deactivation message is sent to the primary cell.
  • the embodiment of the present invention provides a method and a device for activating and deactivating a carrier-assisted secondary carrier.
  • the secondary carrier is not directly activated, but the counter of the SCC activation counter is increased.
  • the ratio of the count value of the SCC activation counter to the number of times reported by the RLC reaches the set activation threshold, it indicates that the amount of buffered data of the previous four times has reached the activation data threshold, and then the threshold is reached.
  • the SCC is activated to avoid multiple activations and deactivations in a short period of time, which improves the stability of the secondary carrier rate.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the application can be in the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware.
  • the application can be in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请公开了一种载波聚合辅载波激活与去激活方法及装置，涉及通信技术，在RLC上报的缓存数据量达到激活数据量门限时，不再直接激活辅载波，而是增加SCC激活计数器的计数值，而确定达到监测条件时，若SCC激活计数器的计数值与RLC上报次数的比值达到设定的激活阈值，则说明多次上报的缓存数据量都达到了激活数据量门限，此时再进行SCC激活，避免了短时间内多次进行激活和去激活，提高了辅载波速率稳定性。

Description

一种载波聚合辅载波激活与去激活方法及装置 本申请要求在 2013年 5月 27日提交中国专利局、 申请号为 201310201523.8、 发明名称为
"一种载波聚合辅载波激活与去激活方法及装置 "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 本申请涉及通信技术， 尤其涉及一种载波聚合辅载波激活与去激活方法及装置。 背景技术
LTE- Advanced ( Long Term Evolution- Advanced ,长期演进增强）中引入载波聚合技术， 通过两个或者更多的基本载波的聚合使用， 解决 LTE- Advance系统对频带资源的需求。 在 载波聚合中， 每个 UE ( User Equipment, 用户设备 )可能被分配为多个 CC (载波）， 用于 更大的数据量传输。
在激活了 SCC(Secondary Component Carrier,辅成员载波， 以下称辅载波）后， UE会 根据配置在 SCell(Secondary Cell,辅服务小区）上发送 SRS(Sounding Reference Symbol,探测 参考信号）， 上报 CQI/PMI/RI(Channel Quality Indicator,信道盾量指示 /Precoding Matrix Indicator,预编码矩阵指示/ Rank Indicator,秩指示）， UE也会监视 SCell上的 PDCCH(Physical Downlink Control Channel,物理下行控制信道)。 在 UE数据量并不大， 在 SCC无需使用时， UE仍旧会不停地进行盲检， 耗费了 UE的电源， 降低效率， 在这种情况下， 需要对 SCC 进行去激活。
具体的， UE在 SCC去激活后， 会：
( 1 ) UE停止在 SCell上传输 SRS;
( 2 ) UE停止在 SCell上报 CQI/PMI/RI; 道)；
( 4 ) UE停止在 SCell上监视 PDCCH;
( 5 )跨载波调度时， UE停止在调度载波的 PDCCH上监视此 SCell的控制信息。 UE在 SCC激活后， 会：
( 1 ) UE按照配置在 SCell上传输 SRS;
( 2 ) UE按照配置在 SCell上报 CQI/PMI/RI;
( 3 ) UE监视 SCell上的 PDCCH, 根据调度信息接收 PDSCH数据； ( 4 )跨载波调度时， UE在调度载波的 PDCCH上监视此 SCell的控制信息。
目前， 在进行激活和去激活时， 均是基于每毫秒的数据量进行激活与去激活判断， 所 以在短时间内容易出现多次激活与去激活处理， 由于辅载波的调度需要等到 MAC CE ( Media Access Control Control Element,媒体接入控制控制元素 )所在数据包对应 ACK (确 认）反馈回来之后再进行， 因此过多的激活与去激活处理可能影响辅载波速率稳定性。 发明内容 本申请实施例提供一种载波聚合辅载波激活与去激活方法及装置， 以提高辅载波速率 稳定性。
一种载波聚合辅载波激活方法， 包括：
媒体接入控制 MAC监测无线链路控制 RLC上报的各次緩存数据量，并在数据量达到 激活数据量门限时， 增加辅成员载波 SCC激活计数器的计数值；
确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数的比值达到设定 的激活阈值， 则进行 SCC激活。
较佳地， 所述确定达到监测条件具体为：
确定达到监测周期； 或者
确定 RLC的上报次数达到设定阈值。
较佳地， 所述进行 SCC激活， 具体包括：
MAC在主载波下发载波聚合激活媒体接入控制控制元素 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后， MAC将辅载波激活消息发送至主小 区 RLC与辅载波小区 MAC。
较佳地， 在进行 SCC激活后， 还包括：
MAC接收所述 RLC再次上报的緩存数据量；
MAC将所述 RLC再次上报的緩存数据量乘以预先设定的系数后 , 根据计算结果进行 资源调度。
一种载波聚合辅载波去激活方法， 包括：
媒体接入控制 MAC监测无线链路控制 RLC上报的各次緩存数据量，并在数据量小于 去激活数据量门限时， 增加辅成员载波 SCC去激活计数器的计数值；
确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC上报次数的比值达到设 定的去激活阈值， 则进行 SCC去激活。
较佳地， 所述确定达到监测条件具体为：
确定达到监测周期； 或者 确定 RLC的上报次数达到设定阈值。
较佳地， 所述进行 SCC去激活， 具体包括：
MAC在主载波下发载波聚合去激活 MAC CE;
MAC在确定 MAC CE所在的下行数据包传输正确后， MAC将辅载波去激活消息发送 至主小区 RLC与辅载波小区 MAC。
一种载波聚合辅载波激活装置， 包括：
激活监测单元，用于监测无线链路控制 RLC上报的各次緩存数据量，并在数据量达到 激活数据量门限时， 增加辅成员载波 SCC激活计数器的计数值；
激活单元， 用于确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数 的比值达到设定的激活阈值， 则进行 SCC激活。
较佳地， 所述激活单元确定达到监测条件具体为：
所述激活单元确定达到监测周期； 或者
所述激活单元确定 RLC的上 4艮次数达到设定阈值。
较佳地， 所述激活单元进行 SCC激活， 具体包括：
在主载波下发载波聚合激活 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后，将辅载波激活消息发送至主小区 RLC 与辅载波小区 MAC。
较佳地， 所述激活单元在进行 SCC激活后， 还用于：
接收所述 RLC再次上报的緩存数据量；
将所述 RLC再次上报的緩存数据量乘以预先设定的系数后 ,根据计算结果进行资源调 度。
一种载波聚合辅载波激活装置， 包括：
处理器， 该处理器被配置为执行具备下列功能的计算机程序： 监测无线链路控制 RLC 上报的各次緩存数据量， 并在数据量达到激活数据量门限时，增加辅成员载波 SCC激活计 数器的计数值； 确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数的比 值达到设定的激活阈值， 则进行 SCC激活；
存储器， 该存储器被配置为保存上述计算机程序的代码。
一种载波聚合辅载波去激活装置， 包括：
去激活监测单元，用于监测无线链路控制 RLC上报的各次緩存数据量，并在数据量小 于去激活数据量门限时， 增加辅成员载波 SCC去激活计数器的计数值；
去激活单元， 用于确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC上报 次数的比值达到设定的去激活阈值， 则进行 SCC去激活。
较佳地， 所述去激活单元确定达到监测条件具体为： 所述去激活单元确定达到监测周期； 或者
所述去激活单元确定 RLC的上报次数达到设定阈值。
较佳地， 所述去激活单元进行 SCC去激活， 具体包括：
在主载波下发载波聚合去激活 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后， 将辅载波去激活消息发送至主小区
RLC与辅载波小区 MAC。
一种载波聚合辅载波去激活装置， 包括：
处理器， 该处理器被配置为执行具备下列功能的计算机程序： 监测无线链路控制 RLC 上报的各次緩存数据量， 并在数据量小于去激活数据量门限时，增加辅成员载波 SCC去激 活计数器的计数值； 确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC上报次 数的比值达到设定的去激活阈值， 则进行 SCC去激活；
存储器， 该存储器被配置为保存上述计算机程序的代码。
本申请实施例提供一种载波聚合辅载波激活与去激活方法及装置， 在 RLC(Radio Link Control,无线链路控制）上报的緩存数据量达到激活数据量门限时， 不再直接激活辅载波， 而是增加 SCC激活计数器的计数值， 而确定达到监测条件时， 若 SCC激活计数器的计数 值与 RLC上报次数的比值达到设定的激活阈值，则说明多次上报的緩存数据量都达到了激 活数据量门限， 此时再进行 SCC激活， 避免了短时间内多次进行激活和去激活， 提高了辅 载波速率稳定性。 附图说明 图 1为本申请实施例提供的载波聚合辅载波激活方法流程图；
图 2为本申请实施例提供的载波聚合辅载波去激活方法流程图；
图 3为本申请实施例提供的载波聚合辅载波激活装置结构示意图；
图 4为本申请实施例提供的载波聚合辅载波去激活装置结构示意图。 具体实施方式 本申请实施例提供一种载波聚合辅载波激活与去激活方法及装置，在 RLC上报的緩存 数据量达到激活数据量门限时，不再直接激活辅载波，而是增加 SCC激活计数器的计数值， 而确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数的比值达到设定的 激活阈值，则说明多次上 4艮的緩存数据量都达到了激活数据量门限，此时再进行 SCC激活， 避免了短时间内多次进行激活和去激活， 提高了辅载波速率稳定性。
如图 1所示， 本申请实施例提供的载波聚合辅载波激活方法， 包括： 步骤 S 101、 MAC ( Media Access Control, 媒体接入控制）监测 RLC上报的各次緩存 数据量， 并在数据量达到激活数据量门限时， 增加 SCC激活计数器的计数值；
步骤 S 102、 确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数的比 值达到设定的激活阈值， 则进行 SCC激活。
其中， 该载波聚合辅载波激活方法通常由主载波 MAC执行。
若 SCC激活计数器的计数值与 RLC上报次数的比值达到设定的激活阈值，则说明 RLC 上 4艮的緩存数据量较大的次数较多，此时再进行 SCC激活，在激活后则不容易在短时间内 就被去激活， 所以提高了辅载波速率稳定性。
所设定的监测条件可以为达到监测周期或者 RLC的上报次数达到设定阈值，此时，步 骤 S 102中， 确定达到监测条件具体为：
确定达到监测周期； 或者
确定 RLC的上报次数达到设定阈值。
当然， 本领域技术人员可以根据实际情况来合理设定监测条件， 此处不再——叙述。 MAC在进行 SCC激活时，可以在主载波下发载波聚合激活 MAC CE,在确定 MAC CE 所在的下行数据包传输正确后， MAC将辅载波激活消息发送至主小区 RLC与辅载波小区 MAC。
进一步， MAC在进行 SCC激活后， 主载波 MAC在接收 RLC再次上报的緩存数据量 时， 将 RLC再次上报的緩存数据量乘以预先设定的系数后， 根据计算结果进行资源调度。 该系数可以根据用户当前环境及业务情况预先进行设定， 通常设置在 0.5到 0.8之间较佳。
基于同一发明构思， 本申请实施例还提供一种载波聚合辅载波去激活方法， 如图 2所 示， 包括：
步骤 S201、 MAC监测 RLC上报的各次緩存数据量， 并在数据量小于去激活数据量门 限时， 增加 SCC去激活计数器的计数值；
步骤 S202、 确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC上报次数的 比值达到设定的去激活阈值， 则进行 SCC去激活。
其中， 该载波聚合辅载波去激活方法通常由主载波 MAC执行。
同样的， 步骤 S202中， 确定达到监测条件具体为：
确定达到监测周期； 或者
确定 RLC的上报次数达到设定阈值。
步骤 S202中， 进行 SCC去激活， 具体包括：
MAC在主载波下发载波聚合去激活 MAC CE;
MAC在确定 MAC CE所在的下行数据包传输正确后， MAC将辅载波去激活消息发送 至主小区 RLC与辅载波小区 MAC。 具体的， 在实际应用时， 可以设置如下门限值和计数器：
( 1 ) ScellActiveThroughputThr: 激活数据量门限， 在 RLC向 MAC上艮的 BO值超过 该激活数据量门限时， SCC激活计数器会加 1。
( 2 ) ScellDeActiveThroughputThr: 去激活数据量门限， 当 RLC上 4艮的 BO值小于该 去激活数据量门限时， SCC去激活计数器加 1。
( 3 ) ScellActiveThr: 激活 SCC门限百分比， 计算得到的比值超过该激活 SCC门限百 分比后， 激活 SCC。
( 4 ) ScellDeActiveThr: 去激活 SCC门限百分比， 计算得到的比值超过该去激活 SCC 门限百分比后， 去激活 SCC。
( 5 ) SccActiveNum: SCC激活计数器。
( 6 ) SccDeActiveNum: SCC去激活计数器。
( 7 ) BoMonitorNum: RLC上报緩存数据量的次数。
( 8 ) T: 监测周期。
通过对上面几个门限值的监测和更新， MAC可以及时的了解到 UE 当前的业务数据 量， 是否达到了激活 /去激活的门限， 从而通知 UE及 PCell RLC和 SCell MAC子载波的情 况。
对于 SCC的激活和去激活相关实现如下：
( 1 ) MAC监测 RLC上报的緩存数据量的大小， 更新相关计数器的值， 在监测周期间 隔内对计数器的值进行计算， 判别是否达到了激活或去激活的百分比。
( 2 )计数器 SccActiveNum, SccDeActiveNum和 BoMonitorNum初值为 0 , 在达到相 关门限时进行加 1 , 否则只将监测次数 BoMonitorNum加 1。在激活或去激活后， 将相关计 数器还原。
( 3 )确定 SCC激活 /去激活 MAC CE所在的下行数据包传输正确后， MAC通过接口 消息告知 RLC与 SCell MAC此时 SCC状态， 并继续监测 RLC上 4艮的 BO值。
具体的， 本申请实施例提供的载波聚合辅载波激活和去激活方法包括：
步骤 1 : 辅载波未激活前， MAC以监测时长 T为周期间隔对 RLC上报的各次緩存数 据量大小 （即 BO值）进行监测， 监测周期开始时将辅载波激活计数器以及监测次数计数 器清零。
步骤 2:如果数据量大于激活数据量门限 ScellActiveThroughputThr,则将 SccActiveNum 和 BoMonitorNum均加 1 , 如果数据量小于激活数据量门限 ScellActiveThroughputThr, 则 仅将 BoMonitorNum力口 1；
步骤 2: 达到周期 T时， 若 SccActiveNum I BoMonitorNum * 100% > ScellActiveThr, MAC在主载波下发载波聚合激活 MAC CE , 在确定 MAC CE所在的下行数据包传输正确 后， MAC将辅载波激活消息发送至主小区 RLC与辅载波小区 MAC;
步骤 3 : SCC激活后， 主辅载波 MAC收到 BO以进行调度时， 为避免资源分配过度， 需要把 RLC报的 BO量与预先设定的系数相乘， 再根据得到的值进行资源分配；
步骤 4: SCC激活后， MAC会继续监测 RLC上报的 BO值， 如果数据量小于去激活 数据量门限 ScellDeActiveThroughputThr, SccDeActiveNum和 BoMonitorNum均力。 1 ,如果 数据量大于门限 ScellDeActiveThroughputThr, 则仅将 BoMonitorNum加 1；
步骤 5 : 在达到设定周期 T 时， 若 SccDeActiveNum I BoMonitorNum * 100% > ScellDeActiveThr, MAC在主载波下发载波聚合去激活 MAC CE, 在确定 MAC CE所在的 下行数据包传输正确后， MAC 将辅载波去激活消息发送至主小区 RLC 与辅载波小区 基于同一发明构思， 本申请实施例还提供一种载波聚合辅载波激活装置， 该装置可以 具体为 MAC , 如图 3所示， 该装置包括：
激活监测单元 301 , 用于监测 RLC上报的各次緩存数据量， 并在数据量达到激活数据 量门限时， 增加 SCC激活计数器的计数值；
激活单元 302 , 用于确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报 次数的比值达到设定的激活阈值， 则进行 SCC激活。
其中， 激活单元 302确定达到监测条件具体为：
激活单元确定达到监测周期； 或者
激活单元确定 RLC的上报次数达到设定阈值。
激活单元 302进行 SCC激活， 具体包括：
在主载波下发载波聚合激活 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后，将辅载波激活消息发送至主小区 RLC 与辅载波小区 MAC。
激活单元 302在进行 SCC激活后， 还用于：
接收 RLC再次上报的緩存数据量；
将 RLC再次上报的緩存数据量乘以预先设定的系数后 , 根据计算结果进行资源调度。 本申请实施例还提供一种载波聚合辅载波去激活装置， 该装置也可以具体为 MAC , 如图 4所示， 该装置包括：
去激活监测单元 401 , 用于监测 RLC上报的各次緩存数据量， 并在数据量小于去激活 数据量门限时， 增加 SCC去激活计数器的计数值；
去激活单元 402 , 用于确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC 上报次数的比值达到设定的去激活阈值， 则进行 SCC去激活。
其中， 去激活单元 402确定达到监测条件具体为： 去激活单元确定达到监测周期； 或者
去激活单元确定 RLC的上报次数达到设定阈值。
去激活单元 402进行 SCC去激活， 具体包括：
在主载波下发载波聚合去激活 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后， 将辅载波去激活消息发送至主小区
RLC与辅载波小区 MAC。
本申请实施例提供一种载波聚合辅载波激活与去激活方法及装置，在 RLC上报的緩存 数据量达到激活数据量门限时，不再直接激活辅载波，而是增加 SCC激活计数器的计数值， 而确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数的比值达到设定的 激活阈值，则说明多次上 4艮的緩存数据量都达到了激活数据量门限，此时再进行 SCC激活， 避免了短时间内多次进行激活和去激活， 提高了辅载波速率稳定性。
本领域内的技术人员应明白， 本申请的实施例可提供为方法、 系统、 或计算机程序产 品。 因此， 本申请可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实 施例的形式。 而且， 本申请可釆用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介盾 （包括但不限于磁盘存储器、 CD-ROM、 光学存储器等）上实施的计算机程 序产品的形式。
本申请是参照根据本申请实施例的方法、 设备（系统）、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器， 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中， 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品， 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上， 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理， 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
尽管已描述了本申请的优选实施例， 但本领域内的技术人员一旦得知了基本创造性概 念， 则可对这些实施例作出另外的变更和修改。 所以， 所附权利要求意欲解释为包括优选 实施例以及落入本申请范围的所有变更和修改。
显然， 本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和 范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内， 则本申请也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种载波聚合辅载波激活方法， 其特征在于， 包括：
媒体接入控制 MAC监测无线链路控制 RLC上报的各次緩存数据量，并在数据量达到 激活数据量门限时， 增加辅成员载波 SCC激活计数器的计数值；
确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数的比值达到设定 的激活阈值， 则进行 SCC激活。
2、 如权利要求 1所述的方法， 其特征在于， 所述确定达到监测条件具体为： 确定达到监测周期； 或者
确定 RLC的上报次数达到设定阈值。
3、 如权利要求 1所述的方法， 其特征在于， 所述进行 SCC激活， 具体包括：
MAC在主载波下发载波聚合激活媒体接入控制控制元素 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后， MAC将辅载波激活消息发送至主小 区 RLC与辅载波小区 MAC。
4、 如权利要求 1所述的方法， 其特征在于， 在进行 SCC激活后， 还包括：
MAC接收所述 RLC再次上报的緩存数据量；
MAC将所述 RLC再次上报的緩存数据量乘以预先设定的系数后 , 根据计算结果进行 资源调度。
5、 一种载波聚合辅载波去激活方法， 其特征在于， 包括：
媒体接入控制 MAC监测无线链路控制 RLC上报的各次緩存数据量，并在数据量小于 去激活数据量门限时， 增加辅成员载波 SCC去激活计数器的计数值；
确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC上报次数的比值达到设 定的去激活阈值， 则进行 SCC去激活。
6、 如权利要求 5所述的方法， 其特征在于， 所述确定达到监测条件具体为： 确定达到监测周期； 或者
确定 RLC的上报次数达到设定阈值。
7、 如权利要求 5所述的方法， 其特征在于， 所述进行 SCC去激活， 具体包括： MAC在主载波下发载波聚合去激活 MAC CE;
MAC在确定 MAC CE所在的下行数据包传输正确后， MAC将辅载波去激活消息发送 至主小区 RLC与辅载波小区 MAC。
8、 一种载波聚合辅载波激活装置， 其特征在于， 包括：
激活监测单元，用于监测无线链路控制 RLC上报的各次緩存数据量，并在数据量达到 激活数据量门限时， 增加辅成员载波 SCC激活计数器的计数值；
激活单元， 用于确定达到监测条件时， 若 SCC激活计数器的计数值与 RLC上报次数 的比值达到设定的激活阈值， 则进行 SCC激活。
9、 如权利要求 8所述的装置， 其特征在于， 所述激活单元确定达到监测条件具体为： 所述激活单元确定达到监测周期； 或者
所述激活单元确定 RLC的上 4艮次数达到设定阈值。
10、如权利要求 8所述的装置，其特征在于，所述激活单元进行 SCC激活，具体包括： 在主载波下发载波聚合激活 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后，将辅载波激活消息发送至主小区 RLC 与辅载波小区 MAC。
11、 如权利要求 8所述的装置， 其特征在于， 所述激活单元在进行 SCC激活后， 还用 于：
接收所述 RLC再次上报的緩存数据量；
将所述 RLC再次上报的緩存数据量乘以预先设定的系数后 ,根据计算结果进行资源调 度。
12、 一种载波聚合辅载波去激活装置， 其特征在于， 包括：
去激活监测单元，用于监测无线链路控制 RLC上报的各次緩存数据量，并在数据量小 于去激活数据量门限时， 增加辅成员载波 SCC去激活计数器的计数值；
去激活单元， 用于确定达到监测条件时， 若 SCC去激活计数器的计数值与 RLC上报 次数的比值达到设定的去激活阈值， 则进行 SCC去激活。
13、 如权利要求 12 所述的装置， 其特征在于， 所述去激活单元确定达到监测条件具 体为：
所述去激活单元确定达到监测周期； 或者
所述去激活单元确定 RLC的上报次数达到设定阈值。
14、 如权利要求 12所述的装置， 其特征在于， 所述去激活单元进行 SCC去激活， 具 体包括：
在主载波下发载波聚合去激活 MAC CE;
在确定 MAC CE所在的下行数据包传输正确后， 将辅载波去激活消息发送至主小区 RLC与辅载波小区 MAC。
PCT/CN2014/078426 2013-05-27 2014-05-26 一种载波聚合辅载波激活与去激活方法及装置 WO2014190885A1 (zh)

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