WO2012155423A1 - 一种分组域网络中无线链路的调度方法及终端 - Google Patents
一种分组域网络中无线链路的调度方法及终端 Download PDFInfo
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- WO2012155423A1 WO2012155423A1 PCT/CN2011/079801 CN2011079801W WO2012155423A1 WO 2012155423 A1 WO2012155423 A1 WO 2012155423A1 CN 2011079801 W CN2011079801 W CN 2011079801W WO 2012155423 A1 WO2012155423 A1 WO 2012155423A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
Definitions
- the invention belongs to the field of mobile wireless communications, and in particular relates to a method and a terminal for scheduling a wireless link in a packet domain network. Background technique
- Wireless resources are an important capital for operators. With the rapid development of mobile communication technologies, mobile communication users are experiencing explosive growth, and the burden on operators' networks is becoming heavier. Reasonable planning and utilization of wireless resources are increasingly valued by operators and the 3rd Generation Partnership Project (3GPP) standardization organization.
- 3GPP 3rd Generation Partnership Project
- the LTE network belongs to the packet domain network, and high-speed data traffic is the biggest highlight of LTE technology. To achieve better data throughput, the rational use of wireless resources is essential. Therefore, Verizon, the largest US operator, clearly stated the specifications for the rational use of wireless resources in products for LTE product requirements and test specifications.
- the protocol and the operator stipulate this way of saving wireless resources, in practice, it is found that for the data terminal connected to the PC or the mobile terminal of the intelligent platform, the protocol The prescribed conditions are too harsh, making this wireless resource saving mechanism difficult to work. For example, if the value of the inactivity timer is specified as 1 minute, that is, the user is required to have no data upload and download within 1 minute, the wireless resource of the terminal may be released reasonably.
- An object of the present invention is to provide a method and a terminal for scheduling a radio link in a packet domain network, so as to more rationally utilize the radio resources of the operator and avoid unnecessary radio resource occupation.
- the present invention provides a method for scheduling a wireless link in a packet domain network, including:
- the terminal counts the amount of data sent over a period of time
- the link release condition includes: the amount of data sent in the duration is less than the pre-configured data volume threshold.
- the link release condition further includes: in the N data volume result counted in a pre-configured statistical period, the counted data amount is less than the pre-configured data volume threshold value is N 0 times Above; wherein, N and N. Are positive integers, JL No ⁇ N;
- the releasing the established radio link resources includes: releasing the established radio link resources at the beginning of the next pre-configured statistical period.
- the above method further includes:
- the terminal separately counts the amount of data to be sent in the N durations in the pre-configured statistical period
- the terminal When the terminal determines that the number of data is greater than the pre-configured data volume threshold is N times or more, the terminal initiates a heavy weight at the beginning of the next pre-configured statistical period. The process of newly establishing a released radio link resource; where N is a positive integer and N ⁇ N.
- the link release condition further includes: a service quality level of the service currently used by the terminal is low.
- the above method further includes:
- the terminal After the radio link resource is released, the terminal performs the following processing whenever the data to be transmitted is generated:
- the The sent data is sent to the network side with the data stored in the current buffer; otherwise, the data to be sent is stored in the buffer.
- the above method further includes:
- the network side network element After the radio link resource is released, the network side network element generates data to be sent to the terminal, and if the data to be sent to the terminal and the buffer currently allocated to the terminal are determined, If the total amount of data stored in the area exceeds the pre-configured second capacity threshold, the paging message is sent to the terminal; otherwise, the data to be sent to the terminal is stored in the buffer for the terminal. In the flushing area;
- the terminal After receiving the paging message, the terminal re-initiates a process of establishing a wireless link; after the wireless link is established, the network side network element sends the data to be sent to the terminal The data stored in the buffer currently allocated for the terminal is sent to the terminal.
- the terminal re-initiates the process of establishing a wireless link and completes data transmission or reception on the established wireless link, if the terminal determines that the current time is at the beginning of the statistical period, the established wireless has been released.
- the link resources release the re-established radio link resources again.
- the present invention also provides a terminal, including:
- a statistical unit which is set to: count the amount of data sent over a period of time;
- An execution unit configured to: release the established radio link resource when it is determined that the link release condition is met; wherein the link release condition includes: the amount of data sent within the duration is less than the pre-configured data The amount of value.
- the link release condition further includes: in the N data volume result counted in a pre-configured statistical period, the counted data amount is less than the pre-configured data volume threshold value is N 0 times Above; wherein, N and N. Are positive integers, JL No ⁇ N;
- the execution unit is further configured to: release the established radio link resources as follows: Release the established radio link resources at the beginning of the next pre-configured statistical period.
- the statistics unit is further configured to: separately count, in the pre-configured statistical period, the amount of data to be sent in the N durations;
- the execution unit is further configured to: when it is determined that the number of times of the data is greater than the pre-configured data volume threshold is N times or more, at the beginning of the next pre-configured statistical period, The process of re-establishing the released radio link resources; where N is a positive integer and ⁇ N.
- the executing unit is further configured to: when the radio link resource is released, whenever the data to be sent is generated, perform the following processing:
- the The sent data is sent to the network side with the data stored in the current buffer; otherwise, the data to be sent is stored in the buffer.
- the execution unit is further configured to: after re-initiating the process of establishing a wireless link, and completing data transmission or reception on the established wireless link, if it is determined that the start time of the statistical period at which the current time is located has been Release the established radio link resources and release the re-established radio link resources again.
- the traffic-based wireless link release mechanism is more suitable for the rational use of wireless resources in the increasingly growing data card and smart phone terminal products. Compared with the idle time based method in the protocol, the method is more reasonable in the actual application scenario;
- FIG. 3 is a schematic diagram showing a decision mechanism and a flow of a data traffic state from a low to a high when a radio link release mechanism is disabled according to an embodiment of the present invention
- FIG. 4 is a flowchart of a radio link release mechanism and a Qos level decision in the embodiment of the present invention
- FIG. 5 is a working flow of a UE side radio link release mechanism according to an embodiment of the present invention
- FIG. 6 is a working flow of a network side radio link release mechanism according to an embodiment of the present invention.
- FIG. 7 is a schematic diagram of a process of negotiating a radio link release parameter between a UE and an inter-network according to an embodiment of the present invention. Preferred embodiment of the invention
- the scheduling method of the radio link in the packet domain network includes: Step 10: The terminal counts the amount of data sent within a time period;
- the rate function of the data sent by the terminal is At, and the amount of data ⁇ sent by the terminal in the duration is represented by the following formula:
- Step 20 When it is determined that the link release condition is met, the established radio link resource is released.
- the link release condition includes: the amount of data sent in the foregoing duration is less than the pre-configured data amount. Wide value.
- the terminal After the radio link resource is released, whenever the data to be sent is generated, the terminal initiates the RRC when it determines that the total amount of data to be sent and the data stored in the current buffer exceeds a pre-configured capacity threshold.
- Connection Request to re-establish the wireless link, and send the data to be sent and the data stored in the current buffer to the network side after the establishment is completed; if it is determined that the data to be sent is stored in the current buffer
- the total amount of data does not exceed the pre-configured capacity threshold, and the data to be sent is stored in the buffer.
- the pre-configured capacity threshold should be less than or equal to the capacity value of the buffer of the terminal.
- the link release condition may further include: following a step 10 in a pre-configured statistical period, in order to avoid the ping-pong effect of the service state judgment, causing the repeated state decision handover.
- the number of times the statistical data is smaller than the pre-configured data volume threshold is NG times or more.
- N and NG are both positive integers
- ⁇ is the pre-configured number of thresholds
- N. ⁇ N a pre-configured period ⁇ can be separated between every two adjacent statistical operations.
- the releasing the established radio link resources includes: releasing the established radio link resources at the beginning of the next pre-configured statistical period.
- Figure 2 shows a decision flow enabled by the wireless link release mechanism, that is, a process of determining whether the current user's data traffic is at a high or low level.
- Set the threshold 2 To pre-configure whether to enable the data volume threshold of the wireless link release function, perform the following steps according to the following steps:
- Step 101 Assume that the user traffic is large at the last moment, that is, the radio link release mechanism is not activated. After the cycle time, a new round of judgment on the state of the user data service is started, and the judgment is made one time;
- Step 102 The amount of data sent in the pre-configured duration is counted with the set threshold ⁇ . For comparison, if AQ ⁇ 3 ⁇ 4 , increase the number of occurrences of this event by one;
- Step 103 After the delay time T, the second data amount statistics is performed, and according to step 102, the calculated value is compared with the set threshold value. Until the judgment was made N times;
- Step 104 In order to avoid the ping-pong effect of the service state judgment caused by the unstable factor, causing repeated state decision switching, the mechanism for performing state switching when the absolute number of times is dominant is used here. For example: Only when the decision result exceeds N times is AQ ⁇ Q. In the state, it is judged that the user's traffic is already low at this time, and the wireless link release mechanism can be activated to initiate the release of the wireless link. Cheng.
- the specific process includes:
- Step 201 Start a new round of judgment on the state of the user data service when a statistical period comes, and perform the judgment N times in a pre-configured statistical period;
- Step 202 The amount of data AQ to be transmitted within the pre-configured duration is counted with the set threshold ⁇ . For comparison, if AQ>3 ⁇ 4, increase the number of occurrences of this event by one;
- Step 203 After delaying the duration T, perform the second data amount statistics, and according to step 202, the statistical AQ and the set threshold ⁇ . Conduct a comparative judgment. Until the judgment was made;
- Step 204 In order to avoid the ping-pong effect of the service state judgment caused by the unstable factor, causing the repeated state decision switching, the mechanism for performing the state switching when the absolute number of times is dominant is used here. For example: Only when more than N times (such as N) times, the result of the decision is AQ>Q. In the state, it is judged that the user's traffic is already high at this time, and the radio link release mechanism can be disabled to initiate the re-establishment process of the radio link in the next statistical period.
- the values of ⁇ and ⁇ may be the same or different.
- the above describes the decision mode for utilizing the amount of traffic data to the radio link release mechanism, which is a basic condition for enabling the wireless link to initiate a release mechanism. Considering the different characteristics of the service, it is also possible to increase the condition that the Qos level of the service used by the user is low in the link release condition to determine whether to enable the wireless link release mechanism.
- the Guaranteed Bit Rate (GBR) service which is very sensitive to the QoS level
- the Guaranteed Bit Rate (GBR) service is very sensitive to delay.
- the radio link release mechanism In order to guarantee the quality of service, the radio link release mechanism must be disabled. When a user performs a service with a high QoS level, the wireless link release mechanism is disabled. The radio link release mechanism is performed for NGBR services where the Qos level is relatively low. Usually, the QoS of the NGBR service (such as browsing the web, downloading, etc.) with relatively low QoS level is still relatively large. This mechanism can effectively save the wireless resources of these users and conduct between them. Reasonable deployment.
- FIG. 5 shows the detailed working process of the UE side when the wireless link has been released. The implementation steps are as follows:
- Step 401 When a certain amount of data AQ is to be sent, since the wireless link has been released, the UE needs to view the amount of data in the current buffer queue, and if the data is put into this, the amount of data in the buffer is not caused. When the specified threshold Qmax is exceeded, the data is temporarily stored in the buffer queue, and no transmission is performed, and step 401 is performed again. If the threshold Qmax is exceeded, the UE performs the next operation.
- Step 402 The UE initiates an RRC Connection Request for the wireless chain. After the wireless link is established, all the data of the buffer queue and the data to be sent are sent to the network, and the next step is performed;
- Step 403 Determine whether the established radio link resource is released at the start time of the statistical period at which the current time is located. If yes, the UE initiates an RRC Connection Release to release the resource connection. Otherwise, the RRC connection is maintained and real-time data interaction with the network side.
- FIG. 6 shows the detailed working process of the network side network element after the wireless link is released.
- the decision process performed by the network element is the same as the detection process performed by the terminal side after the radio link is released.
- the main difference is that the network side network element needs to open up each UE that has not established an RRC radio link in its own cell. Separate buffer queues, and identify these queues separately.
- the method of identification may be, but not limited to, using the system architecture evolution of the terminal, System Architecture Evolution TMSI (S-TMSI), and the like.
- S-TMSI System Architecture Evolution TMSI
- the network element When it is determined that the RRC wireless connection with a certain UE needs to be established, the network element initiates a paging message and carries the valid identification information of the UE, for example, S-TMSI, to trigger the UE to establish the RRC passively. connection.
- S-TMSI valid identification information of the UE
- Figure 7 shows the method for the network side network element to send configuration parameters to the UE, that is, the system information (system information) message is sent to the UE, which is simple and flexible.
- a terminal in this embodiment includes:
- a statistical unit configured to count the amount of data sent within a period of time
- An execution unit configured to: when the link release condition is met, release the established radio link resource; where the link release condition includes: the amount of data sent in the duration is less than the pre-configured data volume value.
- the link release condition further includes: in the N-th data volume result that is counted in a pre-configured statistical period, the counted data amount is less than the pre-configured data volume threshold value is No or more; N and N. Both are positive integers, and N. ⁇ N;
- the execution unit is configured to release the established radio link resources, and specifically includes:
- the execution unit is configured to release the established radio link resource at a start time of a next pre-configured statistical period.
- the statistic unit is further configured to separately count, in the pre-configured statistical period, the amount of data to be sent in the N durations;
- the execution unit is further configured to: when determining that the number of times of data is greater than the number of times of the pre-configured data volume is N times or more, initiating a restart at the beginning of the next pre-configured statistical period The process of establishing a released radio link resource; where N is a positive integer and N ⁇ N.
- the data is processed as follows:
- the The sent data is sent to the network side with the data stored in the current buffer; otherwise, the data to be sent is stored in the buffer.
- the execution unit is further configured to: after re-initiating the process of establishing a wireless link, and completing data transmission or reception on the established wireless link, if it is determined that the start time of the statistical period of the current time has been released, the established The radio link resources release the re-established radio link resources again.
- the traffic-based wireless link release mechanism is more suitable for the rational use of wireless resources in the increasingly growing data card and smart phone terminal products. Compared with the idle time based method in the protocol, the method is more reasonable in the actual application scenario;
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Description
一种分组域网络中无线链路的调度方法及终端
技术领域
本发明属于移动无线通讯领域, 尤其涉及一种分组域网络中无线链路的 调度方法及终端。 背景技术
无线资源是运营商的重要资本, 随着移动通讯技术的日益飞速发展, 移 动通信用户也在***性增长, 运营商网络的负担也越来越重。 合理的规划和 利用无线资源越来越受到运营商和第三代合作伙伴计划 (The 3rd Generation Partnership Project, 3GPP )标准化组织的重视。
如何避免不必要的无线资源浪费这一问题已经被高端运营商和 3GPP规 范组织进行了强制性要求,尤其是对于长期演进(Long Term Evolution, LTE ) 技术。
LTE网络属于分组域网络, 高速的数据流量是 LTE技术的最大亮点。 要 达到更好的数据传输量, 无线资源的合理利用必不可少。 所以美国第一大运 营商 Verizon在对 LTE的产品需求和测试规范中明确提出了对于产品无线资 源合理利用的规范。
在 Verizon的测试规范《LTE data Retry Testplan》中有众多用例都涉及终 端产品的资源节省需求。 根据 3GPP TS 24.301中 5.5.2Detach procedure的规 定, 运营商明确要求终端在连接数据网络之后如果在特定的时间间隔 (接入 点名称(Access Point Name, APN )定时器 inactive Timer ) 内无任何的数据 上下行传输, 网络或者终端要进行无线资源的释放 ( RRC Connection Release 过程),以保证无业务量的用户不会白白的占用宝贵的无线资源。在 3GPP TS 36.311 第 5.3.8 RRC connection release章节中同样规定了无线资源控制协议 ( Radio Resource Control, RRC )无线资源释放的方式和场景。
协议和运营商虽然规定了这种节省无线资源的方式, 但是在实际操作中 发现, 对于连接到 PC机的数据类终端或者智能平台的移动终端来说, 协议
规定的条件过于苛刻, 导致这种无线资源节省机制很难奏效。 比如如果规定 inactivity timer的值为 1分钟的话, 也就是要求用户在 1分钟之内无任何的数 据上传和下载时, 终端的无线资源才可能被合理释放。 但是实际上, 对于连 接到 PC机的数据卡类产品、 或者具有强大丰富软件的智能手机来说, 当用 户连接了数据网络之后, 即使不进行任何的上网或者浏览网页操作, 操作系 统的后台程序或者其他软件的后台程序也会去请求发送和接收一定量的数 据, 因此很难保证在 1分钟内无任何的数据收发包, 这将导致上述无线资源 节省的机制相当于形同虚设。 发明内容
本发明的目的在于提供一种分组域网络中无线链路的调度方法及终端, 以对运营商的无线资源进行更合理的利用, 避免不必要的无线资源占用。
为解决上述问题,本发明提供了一种分组域网络中无线链路的调度方法, 包括:
终端统计在一时长内发送的数据量;
所述终端在判断出满足链路释放条件时, 释放已建立的无线链路资源; 其中, 所述链路释放条件包括: 在所述时长内发送的数据量小于预配置的数 据量阔值。
优选地, 所述链路释放条件还包括: 在一预配置的统计周期内统计的 N 次数据量结果中, 统计出的数据量小于所述预配置的数据量阔值的次数为 N0 次以上; 其中, N和 N。均为正整数, JL No <N;
所述释放已建立的无线链路资源包括: 在下一个预配置的统计周期的开 始时刻, 释放所述已建立的无线链路资源。
优选地, 上述方法还包括:
所述终端在所述预配置的统计周期内分别统计 N个所述时长内待发送的 数据量;
所述终端在判断出 N次数据量结果中, 数据量大于所述预配置的数据量 阔值的次数为 N次以上时, 在下一个预配置的统计周期的开始时刻, 发起重
新建立已释放的无线链路资源的过程; 其中, N为正整数, 且 N <N。
优选地, 所述链路释放条件还包括: 所述终端当前使用的业务的服务质 量等级为低。
优选地, 上述方法还包括:
在所述无线链路资源被释放后, 所述终端每当产生待发送的数据, 执行 以下处理:
在判断出所述待发送的数据与当前緩冲区中存储的数据的总量超过预配 置的第一容量阔值时, 重新发起建立无线链路的流程, 并在建立完成后将所 述待发送的数据与当前緩冲区中存储的数据发送给网络侧; 否则, 将所述待 发送的数据存入所述緩冲区。
优选地, 上述方法还包括:
在所述无线链路资源被释放后, 网络侧网元每当产生待发送给所述终端 的数据, 若判断出所述待发送给所述终端的数据与当前为所述终端分配的緩 冲区中存储的数据的总量超过预配置的第二容量阔值, 则向所述终端发送寻 呼消息; 否则, 将所述待发送给所述终端的数据存入为所述终端分配的緩冲 区中;
所述终端在收到所述寻呼消息后, 重新发起建立无线链路的流程; 在所述无线链路建立完成后, 所述网络侧网元将所述待发送给所述终端 的数据与当前为所述终端分配的緩冲区中存储的数据发送给所述终端。
优选地, 所述终端在重新发起建立无线链路的流程、 并在所建立的无线 链路上完成数据的发送或接收后, 若判断出当前时刻所在统计周期的开始时 刻已释放已建立的无线链路资源, 则再次释放重新建立的无线链路资源。
相应地, 本发明还提供了一种终端, 包括:
统计单元, 其设置为: 统计在一时长内发送的数据量; 以及
执行单元, 其设置为: 在判断出满足链路释放条件时, 释放已建立的无 线链路资源; 其中, 所述链路释放条件包括: 在所述时长内发送的数据量小 于预配置的数据量阔值。
优选地, 所述链路释放条件还包括: 在一预配置的统计周期内统计的 N 次数据量结果中, 统计出的数据量小于所述预配置的数据量阔值的次数为 N0 次以上; 其中, N和 N。均为正整数, JL No <N;
所述执行单元还设置为: 按如下方式释放已建立的无线链路资源: 在下 一个预配置的统计周期的开始时刻, 释放所述已建立的无线链路资源。
优选地, 所述统计单元还设置为: 在所述预配置的统计周期内分别统计 N个所述时长内待发送的数据量;
所述执行单元还设置为: 在判断出 N次数据量结果中, 数据量大于所述 预配置的数据量阔值的次数为 N次以上时,在下一个预配置的统计周期的开 始时刻, 发起重新建立已释放的无线链路资源的过程; 其中, N为正整数, 且 <N。
优选地, 所述执行单元还设置为: 在所述无线链路资源被释放后, 每当 产生待发送的数据, 执行以下处理:
在判断出所述待发送的数据与当前緩冲区中存储的数据的总量超过预配 置的第一容量阔值时, 重新发起建立无线链路的流程, 并在建立完成后将所 述待发送的数据与当前緩冲区中存储的数据发送给网络侧; 否则, 将所述待 发送的数据存入所述緩冲区。
优选地, 所述执行单元还设置为: 在重新发起建立无线链路的流程、 并 在所建立的无线链路上完成数据的发送或接收后, 若判断出当前时刻所在统 计周期的开始时刻已释放已建立的无线链路资源, 则再次释放重新建立的无 线链路资源。
本发明实施例具有以下优点:
( 1 )基于流量的无线链路释放机制更适合于日益发展壮大的数据卡类和 智能手机终端类产品对于无线资源的合理利用需求。 相比于协议中基于空闲 时间的方式, 该方式更在实际应用场景中具有合理性;
( 2 )对于不同服务质量(Quality of Service, Qos )等级的业务的区别对 待, 不仅保证了各种业务的正常运行, 对于运营商网络资源的负担也大大降 低。
( 3 )各种阔值参数可以通过网络侧下发, 配置灵活, 实用性强。 作为高 端运营商及其关注的一项功能, 应用前景较好。 附图概述
的判决机制和流程;
图 3为本发明实施例中无线链路释放机制禁用时数据流量状态由低至高 的判决机制和流程;
图 4为本发明实施例中无线链路释放机制与 Qos等级判决流程图; 图 5为本发明实施例中 UE侧无线链路释放机制工作流程;
图 6 为本发明实施例中网络侧无线链路释放机制工作流程;
图 7 为本发明实施例中 UE和网络间无线链路释放参数协商过程示意 图。 本发明的较佳实施方式
为使本发明的目的、 技术方案和优点更加清楚明白, 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任意组合。
在本实施例中, 分组域网络中无线链路的调度方法, 如图 1所示, 包括: 步骤 10: 终端统计在一时长内发送的数据量;
步骤 20: 在判断出满足链路释放条件时, 释放已建立的无线链路资源; 其中, 链路释放条件包括: 在上述时长内发送的数据量小于预配置的数据量
阔值。
在上述无线链路资源被释放后, 每当产生待发送的数据, 终端在判断出 该待发送的数据与当前緩冲区中存储的数据的总量超过预配置的容量阔值 时, 发起 RRC Connection Request, 以重新建立无线链路, 并在建立完成后将 上述待发送的数据与当前緩冲区中存储的数据发送给网络侧; 若判断出该待 发送的数据与当前緩冲区中存储的数据的总量未超过预配置的容量阔值, 则 将该待发送的数据存入该緩冲区。 其中, 为了保证数据不溢出, 该预配置的 容量阔值应小于等于本终端緩冲区的容量值。
为了避免不稳定因素导致业务状态判断的乒乓效应, 造成反复的状态判 决切换, 在本发明的另一实施例中, 链路释放条件还可以包括: 在一预配置 的统计周期内按照步骤 10连续统计的 N次数据量结果中,统计出的数据量小 于上述预配置的数据量阔值的次数为 NG次以上。 其中, N和 NG均为正整数, ^为预配置的次数阔值, 且 N。 <N。 此外, 每两次相邻的统计操作之间可间 隔一预配置的周期 τ。 相应地, 上述释放已建立的无线链路资源, 具体包括: 在下一个预配置的统计周期的开始时刻, 释放已建立的无线链路资源。
图 2所示为无线链路释放机制启用的一个判决流程, 也就是判断当前用 户的数据业务量是处于高位还是低位的流程。 设定阔值2。为预配置的是否开 启无线链路释放功能的数据量阔值, 根据如下步骤进行判决:
步骤 101 : 假定上一个时刻用户业务量较大, 也就是没有启动无线链路 释放机制。 经过周期时间 Τ后, 开始新一轮对用户数据业务状态的判决, 且 将该判决进行 Ν次;
步骤 102:将每次统计出的在预配置的时长内发送的数据量 与设定的 阔值 ρ。进行对比, 如果 AQ<¾ , 则将此事件发生的次数加 1 ;
步骤 103: 延迟时长 T后, 再进行第 2次数据量统计, 并按照步骤 102 将统计出的 与设定的阔值 进行对比判决。 直至判决了 N次;
步骤 104: 为了避免不稳定因素导致业务状态判断的乒乓效应, 造成反 复的状态判决切换, 此处要釆用达到绝对的次数优势时才进行状态切换的机 制。 例如: 只有当超过 N次的判决结果都是 AQ<Q。状态时, 才判断此时用 户的业务量已经很低, 可以启动无线链路释放机制, 发起无线链路的释放过
程。
在无线链路被释放后, 当用户业务量又恢复为高数据量后, 需要重新建 立无线链路, 如图 3所示, 具体过程包括:
步骤 201 : 在一个统计周期来临时, 开始新一轮对用户数据业务状态的 判决, 且在预配置的统计周期内将该判决进行 N次;
步骤 202:将每次统计出的在预配置的时长内待发送的数据量 AQ与设定 的阔值 ρ。进行对比, 如果 AQ>¾ , 则将此事件发生的次数加 1 ;
步骤 203: 延迟时长 T后, 再进行第 2次数据量统计, 并按照步骤 202 将统计出的 AQ与设定的阔值 β。进行对比判决。 直至判决了 Ν次;
步骤 204: 为了避免不稳定因素导致业务状态判断的乒乓效应, 造成反 复的状态判决切换, 此处要釆用达到绝对的次数优势时才进行状态切换的机 制。 例如: 只有当超过 N次(如 N )次的判决结果都是 AQ>Q。状态时, 才 判断此时用户的业务量已经很高, 可以禁用无线链路释放机制, 在下一个统 计周期内发起无线链路的重新建立过程。在具体实现时, ^与^的值可以相 同, 也可以不同。
以上描述了利用业务数据量对无线链路释放机制的判决方式, 是启用无 线链路是否启动释放机制的一个基本条件。 考虑到业务的特性不同, 另外还 可以在链路释放条件中增加用户所使用业务的 Qos等级低这一条件, 来决定 是否启用无线链路释放机制。
如图 4所示, 对于 Qos等级要求较高, 例如对时延非常敏感的保证比特 率(Guaranteed Bit Rate, GBR )业务, 为了保证服务质量, 必须禁用无线链 路释放机制, 从流程可以看出用户在进行 Qos等级高的业务时, 无线链路释 放机制是禁用的。 无线链路释放机制针对于 Qos等级要求相对低的 NGBR业 务来进行。 通常情况下 Qos等级要求相对低的 NGBR业务(例如浏览网页、 下载等) 的业务量还是相对较多的, 釆用这种机制能有效的节省这部分用户 的无线资源, 并在他们之间进行合理的调配。 而对于 VOIP—类的业务、 数 据 GBR业务等, 需要保证 Qos方可正常进行, 故而对于此类对于 Qos业务 要求高的情形, 是不釆用无线链路释放机制的。 这样能在保证运营商收益的 同时, 带来良好的用户体验。
图 5给出了 UE侧当无线链路已被释放后的详细工作过程, 实现步骤如 下:
步骤 401 : 当有一定数据量 AQ要发送时, 由于无线链路已经被释放, 此 时 UE需要查看目前緩冲队列中的数据量,如果放入这 的数据不会导致緩 冲区的数据量超过指定阔值 Qmax时, 此 的数据暂时存入緩冲队列, 不 进行发送, 重新执行步骤 401 ; 如果超过阔值 Qmax时, UE进行下一步操作; 步骤 402: UE发起 RRC Connection Request进行无线链路的建立过程; 在无线链路建立完备之后, 将緩冲队列的所有数据及上述待发送的数据发送 给网络, 并进行下一步骤;
步骤 403 : 判断当前时刻所在统计周期的开始时刻是否释放了已建立的 无线链路资源, 若是, 则 UE主动发起 RRC Connection Release 以释放资源 连接。 否则, 维持 RRC连接, 并与网络侧进行实时的数据交互。
图 6给出了在无线链路被释放后, 网络侧网元的详细工作过程。 网元执 行的判决流程与上述终端侧在无线链路被释放后执行的检测流程相同, 主要 区别在于: 网络侧网元需要对每一个在自己小区下的未建立 RRC无线链接的 UE都要开辟单独的緩冲队列, 并对这些队列分别进行标识, 标识的方法可以 但不限于釆用该终端的***架构演进移动用户识别码( System Architecture Evolution TMSI , S-TMSI )等。 当判决到需要建立与某个 UE的 RRC无线连 接时, 该网元发起 Paging (寻呼) 消息并在该消息中携带有效的该 UE的标 识信息, 例如 S-TMSI来触发 UE被动的建立 RRC连接。
为了使得网络对于 UE的参数控制更加灵活, 对于上述实施例中所使用 到的一些关键参数是可实时进行配置的, 例如, Q0、 N、 Qmax等。 图 7给出 了网络侧网元向 UE下发配置参数的方法, 即通过 System Information (*** 信息) 消息下发给 UE即可, 简单灵活。
釆用此方法后, 当 UE进行小业务量的数据传输时, 从网络侧信令的角 度, RRC连接和数据的发出不是完全同步的。 例如 ping小数据包, 以速率统 计工具可以看到 UE收发的数据呈现突发性, 并且突发的数据量是基本等同 的, 而不是呈现均匀分布。 另外在间歇性小数据量业务进行过程时, UE不会 在每次小数据量开始时都会请求 RRC连接建立过程。相比于传统的基于定时
器的无线链路释放机制, 本发明所述的方法是完全基于数据量的。 此外, 本实施例中一种终端, 包括:
统计单元, 用于统计在一时长内发送的数据量;
执行单元, 用于在判断出满足链路释放条件时, 释放已建立的无线链路 资源; 其中, 所述链路释放条件包括: 在所述时长内发送的数据量小于预配 置的数据量阔值。
较佳地,
所述链路释放条件还包括: 在一预配置的统计周期内统计的 N次数据量 结果中, 统计出的数据量小于所述预配置的数据量阔值的次数为 No次以上; 其中, N和 N。均为正整数, 且 N。<N;
所述执行单元用于释放已建立的无线链路资源, 具体包括:
所述执行单元用于在下一个预配置的统计周期的开始时刻, 释放所述已 建立的无线链路资源。
较佳地,
所述统计单元还用于在所述预配置的统计周期内分别统计 N个所述时长 内待发送的数据量;
所述执行单元还用于在判断出 N次数据量结果中, 数据量大于所述预配 置的数据量阔值的次数为 N次以上时,在下一个预配置的统计周期的开始时 刻,发起重新建立已释放的无线链路资源的过程;其中, N为正整数,且 N <N。
较佳地, 数据, 执行以下处理:
在判断出所述待发送的数据与当前緩冲区中存储的数据的总量超过预配 置的第一容量阔值时, 重新发起建立无线链路的流程, 并在建立完成后将所 述待发送的数据与当前緩冲区中存储的数据发送给网络侧; 否则, 将所述待 发送的数据存入所述緩冲区。
较佳地,
所述执行单元还用于在重新发起建立无线链路的流程、 并在所建立的无 线链路上完成数据的发送或接收后, 若判断出当前时刻所在统计周期的开始 时刻已释放已建立的无线链路资源, 则再次释放重新建立的无线链路资源。
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。
以上所述仅为本发明的优选实施例而已, 并非用于限定本发明的保护范 围。 根据本发明的发明内容, 还可有其他多种实施例, 在不背离本发明精神 改变和变形, 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用性
本发明实施例具有以下优点:
( 1 )基于流量的无线链路释放机制更适合于日益发展壮大的数据卡类和 智能手机终端类产品对于无线资源的合理利用需求。 相比于协议中基于空闲 时间的方式, 该方式更在实际应用场景中具有合理性;
( 2 )对于不同 Qos等级的业务的区别对待, 不仅保证了各种业务的正常 运行, 对于运营商网络资源的负担也大大降低。
( 3 )各种阔值参数可以通过网络侧下发, 配置灵活, 实用性强。 作为高 端运营商及其关注的一项功能, 应用前景较好。
Claims
1、 一种分组域网络中无线链路的调度方法, 包括:
终端统计在一时长内发送的数据量;
所述终端在判断出满足链路释放条件时, 释放已建立的无线链路资源; 其中, 所述链路释放条件包括: 在所述时长内发送的数据量小于预配置的数 据量阔值。
2、 如权利要求 1所述的方法, 其中,
所述链路释放条件还包括: 在一预配置的统计周期内统计的 N次数据量 结果中, 统计出的数据量小于所述预配置的数据量阔值的次数为 No次以上; 其中, N和 N。均为正整数, 且 N。<N;
所述释放已建立的无线链路资源包括: 在下一个预配置的统计周期的开 始时刻, 释放所述已建立的无线链路资源。
3、 如权利要求 2所述的方法, 其中, 所述方法还包括:
所述终端在所述预配置的统计周期内分别统计 N个所述时长内待发送的 数据量;
所述终端在判断出 N次数据量结果中, 数据量大于所述预配置的数据量 阔值的次数为 N次以上时, 在下一个预配置的统计周期的开始时刻, 发起重 新建立已释放的无线链路资源的过程; 其中, N为正整数, 且 N <N。
4、 如权利要求 1或 2所述的方法, 其中,
所述链路释放条件还包括: 所述终端当前使用的业务的服务质量等级为 低。
5、 如权利要求 1所述的方法, 其中, 所述方法还包括:
在所述无线链路资源被释放后, 所述终端每当产生待发送的数据, 执行 以下处理:
在判断出所述待发送的数据与当前緩冲区中存储的数据的总量超过预配 置的第一容量阔值时, 重新发起建立无线链路的流程, 并在建立完成后将所 述待发送的数据与当前緩冲区中存储的数据发送给网络侧; 否则, 将所述待 发送的数据存入所述緩冲区。
6、 如权利要求 1所述的方法, 其中, 所述方法还包括:
在所述无线链路资源被释放后, 网络侧网元每当产生待发送给所述终端 的数据, 若判断出所述待发送给所述终端的数据与当前为所述终端分配的緩 冲区中存储的数据的总量超过预配置的第二容量阔值, 则向所述终端发送寻 呼消息; 否则, 将所述待发送给所述终端的数据存入为所述终端分配的緩冲 区中;
所述终端在收到所述寻呼消息后, 重新发起建立无线链路的流程; 在所述无线链路建立完成后, 所述网络侧网元将所述待发送给所述终端 的数据与当前为所述终端分配的緩冲区中存储的数据发送给所述终端。
7、 如权利要求 2、 5或 6中任意一项所述的方法, 其中,
所述终端在重新发起建立无线链路的流程、 并在所建立的无线链路上完 成数据的发送或接收后, 若判断出当前时刻所在统计周期的开始时刻已释放 已建立的无线链路资源, 则再次释放重新建立的无线链路资源。
8、 一种终端, 包括:
统计单元, 其设置为: 统计在一时长内发送的数据量; 以及
执行单元, 其设置为: 在判断出满足链路释放条件时, 释放已建立的无 线链路资源; 其中, 所述链路释放条件包括: 在所述时长内发送的数据量小 于预配置的数据量阔值。
9、 如权利要求 8所述的终端, 其中,
所述链路释放条件还包括: 在一预配置的统计周期内统计的 N次数据量 结果中, 统计出的数据量小于所述预配置的数据量阔值的次数为 No次以上; 其中, N和 N。均为正整数, 且 N。<N;
所述执行单元还设置为: 按如下方式释放已建立的无线链路资源: 在下 一个预配置的统计周期的开始时刻, 释放所述已建立的无线链路资源。
10、 如权利要求 9所述的终端, 其中,
所述统计单元还设置为: 在所述预配置的统计周期内分别统计 N个所述 时长内待发送的数据量;
所述执行单元还设置为: 在判断出 N次数据量结果中, 数据量大于所述 预配置的数据量阔值的次数为 N次以上时,在下一个预配置的统计周期的开 始时刻, 发起重新建立已释放的无线链路资源的过程; 其中, N为正整数, 且 <N。
11、 如权利要求 8所述的终端, 其中,
所述执行单元还设置为: 在所述无线链路资源被释放后, 每当产生待发 送的数据, 执行以下处理:
在判断出所述待发送的数据与当前緩冲区中存储的数据的总量超过预配 置的第一容量阔值时, 重新发起建立无线链路的流程, 并在建立完成后将所 述待发送的数据与当前緩冲区中存储的数据发送给网络侧; 否则, 将所述待 发送的数据存入所述緩冲区。
12、 如权利要求 9或 11中任意一项所述的终端, 其中,
所述执行单元还设置为: 在重新发起建立无线链路的流程、 并在所建立 的无线链路上完成数据的发送或接收后, 若判断出当前时刻所在统计周期的 开始时刻已释放已建立的无线链路资源, 则再次释放重新建立的无线链路资 源。
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CN103428734A (zh) * | 2013-08-02 | 2013-12-04 | 杭州华三通信技术有限公司 | 一种网络资源优化的方法及装置 |
CN104039027B (zh) * | 2014-06-30 | 2018-03-27 | 华为技术有限公司 | 资源释放的处理方法及装置 |
CN112789946B (zh) * | 2018-11-22 | 2023-03-07 | 深圳市欢太科技有限公司 | 释放rrc连接的方法、装置及移动终端 |
CN113196858B (zh) * | 2019-07-11 | 2022-08-12 | Oppo广东移动通信有限公司 | 用于发送释放辅助指示消息的方法及设备 |
CN111148194B (zh) * | 2019-07-31 | 2022-07-29 | 广东小天才科技有限公司 | 一种基于可穿戴设备的数据传输方法及可穿戴设备 |
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