WO2014201771A1 - 无线链路资源释放的方法及用户设备 - Google Patents

无线链路资源释放的方法及用户设备 Download PDF

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Publication number
WO2014201771A1
WO2014201771A1 PCT/CN2013/083103 CN2013083103W WO2014201771A1 WO 2014201771 A1 WO2014201771 A1 WO 2014201771A1 CN 2013083103 W CN2013083103 W CN 2013083103W WO 2014201771 A1 WO2014201771 A1 WO 2014201771A1
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WIPO (PCT)
Prior art keywords
signaling
moment
user equipment
udp
last
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PCT/CN2013/083103
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English (en)
French (fr)
Inventor
薛子涛
Original Assignee
中兴通讯股份有限公司
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Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP13887268.4A priority Critical patent/EP2999295B1/en
Priority to US14/898,479 priority patent/US9894710B2/en
Priority to ES13887268.4T priority patent/ES2673172T3/es
Priority to AU2013393112A priority patent/AU2013393112B2/en
Publication of WO2014201771A1 publication Critical patent/WO2014201771A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/34—Selective release of ongoing connections
    • H04W76/36—Selective release of ongoing connections for reassigning the resources associated with the released connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release
    • H04W76/38—Connection release triggered by timers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method for releasing radio link resources and a user equipment.
  • Both 3GPP and 3GPP2 wireless organizations define a number of sleep policies for data communication processes.
  • the common feature is that temporary communication maintains links of network-side data communication related modules, and releases or reconstructs more rare wireless link resources through appropriate policies. .
  • Fast Dormancy is a terminal dormancy strategy defined by 3GPP. It is divided into two phases. The first phase is to support Release 7 or earlier only on the terminal and the network. Fast Dormancy called Pre-R8 It is characterized by only telling the network to temporarily disconnect the service connection and not telling the reason for the disconnection; the second stage is that the network and the terminal are both versions after Release 8, which is characterized by applying to disconnect the wireless service connection from the network. At the same time, the reason code field is also carried to inform the network of the reason for disconnecting the wireless service. At present, Fast Dormancy only defines its signaling flow at the RRC layer. It does not clearly state its strategy at the upper layer. Most terminal vendors use a strategy that is based on certain scenarios (such as a black screen). If the terminal does not have data for a period of time. Transmission, Call Fast Dormancy at the bottom to disconnect the wireless link corresponding to the data communication.
  • the Transport Layer is the most important and critical layer in OSI and is the only layer responsible for overall data transfer and data control.
  • the transport layer provides an end-to-end mechanism for exchanging data, checking packet numbers and order.
  • the transport layer provides reliable transport services to its upper three layers, such as the session layer, and provides reliable destination site information to the network layer.
  • the task of the transport layer is to optimally utilize network resources to provide the functions of establishing, maintaining, and canceling transport connections between the session layers of the two end systems according to the characteristics of the communication subnet, and is responsible for end-to-end reliable data transmission.
  • the protocol data unit for information transfer is called a segment or message.
  • TCP Transmission Control Protocol
  • UDP User Data Protocol
  • management services such as flow control, error control, and quality of service (QoS) for end-to-end connections.
  • QoS quality of service
  • the transport layer mainly includes the following protocols: TCP, UDP, SPX, NetBIOS, NetBEUI, among which the SPX protocol has been used less frequently.
  • the NetBIOS protocol was developed by IBM and is used primarily for small LANs with dozens of computers. It is rarely used on the Internet. NetBEUI is based on NetBIOS improvements and is similar.
  • the Internet and UDP protocols are widely used on the Internet. Most of the scenarios are TCP.
  • the TCP protocol is characterized by the establishment and release process.
  • the message transmission process has a response mechanism and the message integrity is good.
  • UDP protocol The feature is that there is no establishment and release process, there is no response mechanism in the message transmission process, and the message transmission delay is small, but the integrity is not guaranteed.
  • the mobile Internet situation is basically the same as the Internet.
  • the technical problem to be solved by the present invention is to provide a radio link resource release method and user equipment, so as to solve the technical problem that the energy saving effect of the user equipment is not ideal.
  • the present invention provides a method for releasing radio link resources, the method comprising:
  • the user equipment monitors the transport layer signaling status in the data communication process
  • the user equipment transmits a message for releasing the radio link resource when the condition of the radio link resource release is met.
  • the transport layer signaling state is only including UDP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a first predetermined time after the last UDP signaling transmission time; or, the last UDP signaling is received by the user equipment, and the last is reached. A second predetermined time after the reception time of a UDP signaling.
  • the transport layer signaling state is only including TCP signaling
  • the radio link resource release condition is: all TCP ports are closed.
  • the transport layer signaling state includes both UDP signaling and TCP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a later moment in the moment when the first time and all the TCP ports are closed, where the first time is after the sending time of the last UDP signaling is reached.
  • the first scheduled time or,
  • the last UDP signaling is received by the user equipment, and reaches a second time in the moment when the second time and all the TCP ports are closed, where the second time is the receiving time of the last UDP signaling The second predetermined time of the moment.
  • the present invention further provides a user equipment, where the user equipment includes: a signaling status detecting unit, configured to: monitor a transport layer signaling state in a data communication process; and a condition pre-judging unit, configured to: Predetermining whether the pair is satisfied according to the detected transport layer signaling status The conditions for the release of the radio link resources;
  • the message sending unit is released, and is set to: send a message for releasing the radio link resource when the condition of the radio link resource release is met.
  • the transport layer signaling state is only including UDP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a first predetermined time after the last UDP signaling transmission time; or, the last UDP signaling is received by the user equipment, and the last is reached. A second predetermined time after the reception time of a UDP signaling.
  • the transport layer signaling state is only including TCP signaling
  • the radio link resource release condition is: all TCP ports are closed.
  • the transport layer signaling state includes both UDP signaling and TCP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a later moment in the moment when the first time and all the TCP ports are closed, where the first time is after the sending time of the last UDP signaling is reached.
  • the first scheduled time or,
  • the last UDP signaling is received by the user equipment, and reaches a second time in the moment when the second time and all the TCP ports are closed, where the second time is the receiving time of the last UDP signaling The second predetermined time of the moment.
  • the radio link resource release method and the user equipment predict whether the condition of the corresponding radio link resource release is satisfied by monitoring the transport layer signaling state in the data communication process, and send the content for releasing the radio when the condition is met.
  • the message of the link resource that is, the state of the radio link is determined by determining the state of the transport layer signaling, and finally achieves the purpose of saving power of the terminal and efficiently utilizing the wireless network resource.
  • Embodiment 1 is a schematic diagram of Embodiment 1 of a method for releasing a line link resource according to the present invention
  • Embodiment 2 is a schematic diagram of Embodiment 2 of a method for releasing a line link resource according to the present invention
  • Embodiment 3 is a schematic diagram of Embodiment 3 of a method for releasing a line link resource according to the present invention
  • 4 is a schematic diagram of Embodiment 4 of a method for releasing a line link resource according to the present invention
  • Embodiment 5 is an example of a processing strategy of a UDP signaling transmission scenario in Embodiment 4.
  • FIG. 6 is an example of a processing strategy of a TCP signaling only scenario in Embodiment 4.
  • FIG. 8 is a schematic structural diagram of a module of a user equipment according to an embodiment of the present invention.
  • Embodiment 1 of the method for releasing radio link resources of the present invention 1 includes: Step 101: The user equipment monitors the transport layer signaling status in the data communication process to include only
  • Step 102 The user equipment predicts, according to the detected transport layer signaling status, whether a condition for releasing the corresponding radio link resource is met.
  • the transport layer signaling state is only including UDP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a first predetermined time after the last UDP signaling transmission time; or, the last UDP signaling is received by the user equipment, and the last is reached. A second predetermined time after the reception time of a UDP signaling.
  • Step 103 When the condition of the radio link resource release is met, the user equipment sends a message for releasing the radio link resource.
  • the message sent by the user equipment may be a request message for releasing the radio link resource, or may be a notification message for notifying the network side that the radio link resource is currently released.
  • the present invention does not limit Set.
  • Embodiment 2 of the method for releasing radio link resources of the present invention includes: Step 201: The user equipment monitors a transport layer signaling state in a data communication process to include only TCP signaling;
  • Step 202 The user equipment predicts, according to the detected transport layer signaling status, whether a condition for releasing the corresponding radio link resource is met.
  • the transport layer signaling state is only including TCP signaling
  • the radio link resource release condition is: all TCP ports are closed.
  • Step 203 When the condition of the radio link resource release is met, the user equipment sends a message for releasing the radio link resource.
  • Embodiment 3 of the method for releasing radio link resources of the present invention includes: Step 301: The user equipment monitors that the transport layer signaling status in the data communication process includes both UDP signaling and TCP signaling. ;
  • Step 302 The user equipment predicts, according to the detected transport layer signaling status, whether a condition for releasing the corresponding radio link resource is met.
  • the transport layer signaling state includes both UDP signaling and TCP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a later moment in the moment when the first time and all the TCP ports are closed, where the first time is after the sending time of the last UDP signaling is reached.
  • the first scheduled time or,
  • the last UDP signaling is received by the user equipment, and reaches a second time in the moment when the second time and all the TCP ports are closed, where the second time is the receiving time of the last UDP signaling The second predetermined time of the moment.
  • Step 303 When the condition for releasing the radio link resource is met, the user equipment sends the release A message that puts radio link resources.
  • the characteristics of the protocol and the transport layer protocol of the road control modify the state of the wireless link by determining the signaling state of the transport layer, and finally achieve the purpose of power saving and efficient use of wireless network resources. More specifically, after the data link is established, the terminal predicts the possibility of the terminal continuing to transmit data by querying the status of its transport layer, especially the status of TCP or UDP signaling, that is, whether the data transmission of the terminal has already been Temporarily completed, judging the rationality of releasing the wireless link, and then disconnecting the data connection with the network by transmitting the management signaling of the wireless link, thereby reducing the power consumption of the terminal, releasing the wireless resources in time, and alleviating network congestion.
  • the method for releasing the radio link resource of the present invention is based on the Fast Dormancy mechanism of Release 8 in the UMTS network, and the terminal is combined with each scenario as an example. As shown in FIG. 4, the method includes:
  • Step 401 The terminal (also referred to as a user equipment) applies for a radio link resource to the network, for example, initiates an RRC link connection request to the UMTS network.
  • Step 402 The network allocates radio link resources to the terminal, and the terminal establishes a wireless connection with the network (for example, the terminal completes the RRC connection and the RAB connection), and includes an identity authentication process such as authentication;
  • Step 403 The terminal obtains an IP address through the PDP protocol. DNS server;
  • Step 403 is not required. ;
  • Step 404 Establish an IP-based data connection between the terminal and the network.
  • Step 405 In the data communication process between the terminal and the network, detecting the signaling state of the transport layer; possibly transmitting TCP signaling or UDP signaling, or both; if the terminal sends an IP-based TCP message request to the network, the terminal needs Establish a TCP connection with the remote application server; If the data communication process only includes the UDP signaling transmission, step 406 is performed; if only the transmission of the TCP signaling is included; step 407 is performed; if the transmission of the UDP signaling and the TCP signaling is included, step 408 is performed;
  • Step 406 The terminal only monitors the UDP signaling transmission process in the scenario of UDP signaling transmission. If the last UDP message is sent by the terminal, after the last UDP signaling is transmitted for T1 seconds (for example, 4 seconds), then step 409 is performed; if the last UDP signaling is received by the terminal, the last UDP signaling is received. After transmitting T2 (for example, 2 seconds), step 409 is performed, as shown in FIG. 5;
  • T1 and T2 can be determined empirically or statistically.
  • Step 407 The terminal monitors the TCP signaling transmission process only in the scenario of TCP signaling transmission.
  • step 409 is performed, as shown in FIG. 6;
  • Step 408 In the scenario where there are both UDP signaling and TCP transmission, the terminal monitors the transmission status of the transport layer TCP and UDP signaling. For the transmission process of UDP signaling, if the last UDP signaling of the terminal is sent by the terminal, compare the time after the last UDP transmission signaling T1 seconds and the time when all the TCP ports are closed, which is based on the last time point. Step 409: If the last UDP signaling of the terminal is received by the terminal, compare the time after the last UDP transmission signaling T2 seconds and the time when all the ports of the TCP are closed, and take the step 409 as follows. Figure 7 shows;
  • Step 409 Immediately send a message for releasing radio link resources (such as an SCRI message), request to disconnect the network connection; the network determines whether the terminal is allowed to disconnect the wireless link, and if the network allows the terminal to disconnect the wireless link, disconnect The wireless link, for example, the network sends a rrcConnectionReleaseComplete message to the terminal, the terminal also replies to the network rrcConnectionReleaseComplete message, the terminal enters the IDLE state; if the network does not allow the terminal to disconnect the wireless link and continues to have data transmission, then the process proceeds to step 405;
  • radio link resources such as an SCRI message
  • the follow-up mechanism is implemented according to the 3GPP corresponding RRC specification or the network actively releases the link.
  • the present invention further provides a user equipment, as shown in FIG. 8, the user equipment includes:
  • a signaling state detecting unit configured to monitor a transport layer signaling state in a data communication process
  • a condition pre-judging unit configured to predict, according to the detected transport layer signaling state, whether a condition for releasing a corresponding radio link resource is met
  • And releasing a message sending unit configured to send a message for releasing the radio link resource when the condition of the radio link resource release is met.
  • the transport layer signaling state is only including UDP signaling, and the condition for releasing the wireless link resource is:
  • the last UDP signaling is sent by the user equipment, and reaches a first predetermined time after the last UDP signaling transmission time; or, the last UDP signaling is received by the user equipment, and the last is reached. A second predetermined time after the reception time of a UDP signaling.
  • the transport layer signaling state is only including TCP signaling, and the condition for releasing the wireless link resource is: all TCP ports are closed.
  • the transport layer signaling state includes both UDP signaling and TCP signaling
  • the radio link resource release condition is:
  • the last UDP signaling is sent by the user equipment, and reaches a later moment in the moment when the first time and all the TCP ports are closed, where the first time is after the sending time of the last UDP signaling is reached.
  • the first scheduled time or,
  • the last UDP signaling is received by the user equipment, and reaches a second time in the moment when the second time and all the TCP ports are closed, where the second time is the receiving time of the last UDP signaling The second predetermined time of the moment.
  • the method for releasing radio link resources of the present invention and the user equipment in the environment of wireless communication combined with the characteristics of the protocol and the transport layer protocol of the radio link control, modify the state of the radio link by determining the signaling state of the transport layer, and finally reach
  • the terminal saves power and efficiently utilizes wireless network resources, implements efficient scheduling on the terminal, disconnects the wireless connection at an appropriate time, and controls the data traffic.
  • the network wireless resource has a good implementation effect in the current environment of the data request and the energy perspective.
  • the upper layer protocol and the underlying protocol are combined, and the power saving effect is greatly improved;

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
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Abstract

本发明提供了无线链路资源释放方法和用户设备（UE）。所述方法包括以下步骤：UE监测数据通信过程中的传输层信令状态；所述UE根据检测到的传输层信令状态预判是否满足对应的无线链路资源释放的条件（102）；符合无线链路释放的条件时，所述UE发送用于释放无线链路资源的消息（103）。本发明实施例无线链路资源释放方法和UE可以提高UE的节电效果。

Description

无线链路资源释放的方法及用户设备
技术领域
本发明涉及通信领域， 尤其涉及一种无线链路资源释放的方法及用户设 备。
背景技术
当前智能手机已经非常普及， 同时其也彻底改变了人们的生活习惯， 很 多人都会经常拿着手机看新闻、 上 QQ微信、 刷微博， 但由于电池技术已经 很多年没有突破性进展， 所以功能多， 性能强、 屏幕大的智能手机面临更大 功耗问题。尤其是上面提到的各种业务，都要连接网络，且经常会自动刷新， 也就是即使黑屏也要连接数据业务获取服务器的消息更新通知， 所以对电池 的消耗很快。 另一方面， 各种各样的数据业务， 也给网络造成了很大的负荷 问题， 这种数据业务导致的过于频繁业务建立和释放对各运营商的网络影响 巨大。 因此， 各个终端或芯片厂家推出了很多节电措施， 本专利涉及的就是 一种有效的节电手段。
3GPP和 3GPP2无线组织都定义了很多的数据通信过程的休眠策略， 其 共同的特点在于暂时通信保持网络侧数据通信相关模块的链路， 通过恰当的 策略释放或重建更为稀有的无线链路资源。 从而达到节约网络资源和终端节 点的两个目标。例如 3 GPP 定义的 Fast Dormancy或 3 GPP2定义的 Dormancy 机制。
Fast Dormancy是 3GPP定义的一种终端休眠的策略， 其分为两个阶段， 第一个阶段是在终端和网络某一端仅支持到 Release 7或之前的版本，称之为 Pre-R8 的 Fast Dormancy, 其特点是仅告知网络要暂时断开业务连接， 并不 告知断开的原因； 第二个阶段就是网络和终端都是 Release 8之后的版本， 其 特点是在向网络申请断开无线业务连接时， 同时携带原因码（cause code )字 段， 通知网络断开无线业务连接的原因。 目前 Fast Dormancy仅仅是在 RRC 层定义了其信令流程， 并未明确说明其在上层的策略， 大多数终端厂商釆取 的策略是在一定场景下 （如黑屏） ， 终端如果一段时间内没有数据传输， 就 在底层调用 Fast Dormancy, 断开数据通信所对应的无线链路。
在智能手机或平板电脑已经非常普及的今天， 数据业务也呈现爆发性的 增长， 但电池技术一直没有新的突破， 终端续航能力已经面临巨大挑战， 但 现有技术的终端节能效果仍不够理想。
传输层（Transport Layer )是 OSI中最重要、 最关键的一层， 是唯一负 责总体的数据传输和数据控制的一层。传输层提供端到端的交换数据的机制 , 检查分组编号与次序。传输层对其上三层如会话层等，提供可靠的传输服务， 对网络层提供可靠的目的地站点信息。
传输层的任务是根据通信子网的特性， 最佳的利用网络资源， 为两个端 系统的会话层之间， 提供建立、 维护和取消传输连接的功能， 负责端到端的 可靠数据传输。 在这一层， 信息传送的协议数据单元称为段或报文。
主要功能：
为端到端连接提供传输服务， 这种传输服务分为可靠和不可靠的， 其中 TCP(Transmission Control Protocol, 传输控制协议)是典型的可靠传输， 而 UDP(User Data Protocol , 用户数据包协议)则是不可靠传输。
为端到端连接提供流量控制， 差错控制， 服务质量 (Quality of Service, QoS)等管理服务。
传输层主要包含如下几种协议： TCP, UDP、 SPX、 NetBIOS, NetBEUI, 其 中， SPX协议已经^^少用到， 目前只有证券、 寻呼等行业还有一些应用。 NetBIOS协议是由 IBM公司开发， 主要用于数十台计算机的小型局域网。在 互联网上几乎很少使用。 NetBEUI是基于 NetBIOS的改进，也是类似的情况。 当前互联网上广泛釆用的主要是 TCP协议和 UDP协议， 其中大部分场景都 是 TCP协议， TCP协议的特点是有建立和释放过程， 消息传输过程有应答机 制， 消息的完整性好； UDP协议的特点是没有建立和释放过程， 消息传输过 程没有应答机制， 消息传输时延小， 但完整性没有保障。 这一点上， 对于移 动互联网情况和互联网基本一致。
发明内容 本发明要解决的技术问题是提供一种无线链路资源释放方法和用户设备, 以解决用户设备的节能效果不够理想的技术问题。
为解决上述技术问题， 本发明提供了一种无线链路资源释放的方法， 该 方法包括：
用户设备监测数据通信过程中的传输层信令状态；
所述用户设备根据检测到的传输层信令状态预判是否满足对应的无线链 路资源释放的条件；
符合无线链路资源释放的条件时， 所述用户设备发送用于释放无线链路 资源的消息。
优选地，所述传输层信令状态为仅包含 UDP信令，所述无线链路资源释 放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到所述最后一条 UDP信 令的发送时刻后的第一预定时间； 或，最后一条 UDP信令为所述用户设备接 收， 且达到所述最后一条 UDP信令的接收时刻后的第二预定时间。
优选地， 所述传输层信令状态为仅包含 TCP信令， 所述无线链路资源释 放的条件为： 所有 TCP端口关闭。
优选地， 所述传输层信令状态为同时包含 UDP信令和 TCP信令， 所述 无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到第一时刻和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第一时刻为达到所述最后一条 UDP信令的发送时刻后的第一预定时间的时刻； 或，
最后一条 UDP信令为所述用户设备接收，且达到第二时刻所和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第二时刻为所述最后一条 UDP 信令的接收时刻后的第二预定时间的时刻。
为解决上述技术问题，本发明还提供了一种用户设备，该用户设备包括： 信令状态检测单元， 设置为： 监测数据通信过程中的传输层信令状态； 条件预判单元， 设置为： 根据检测到的传输层信令状态预判是否满足对 应的无线链路资源释放的条件；
释放消息发送单元， 设置为： 在符合无线链路资源释放的条件时， 发送 用于释放无线链路资源的消息。
优选地，所述传输层信令状态为仅包含 UDP信令，所述无线链路资源释 放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到所述最后一条 UDP信 令的发送时刻后的第一预定时间； 或，最后一条 UDP信令为所述用户设备接 收， 且达到所述最后一条 UDP信令的接收时刻后的第二预定时间。
优选地， 所述传输层信令状态为仅包含 TCP信令， 所述无线链路资源释 放的条件为： 所有 TCP端口关闭。
优选地， 所述传输层信令状态为同时包含 UDP信令和 TCP信令， 所述 无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到第一时刻和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第一时刻为达到所述最后一条 UDP信令的发送时刻后的第一预定时间的时刻； 或，
最后一条 UDP信令为所述用户设备接收，且达到第二时刻所和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第二时刻为所述最后一条 UDP 信令的接收时刻后的第二预定时间的时刻。
本发明实施例无线链路资源释放方法和用户设备通过监测数据通信过程 中的传输层信令状态， 预判是否满足对应的无线链路资源释放的条件， 并在 满足条件时发送用于释放无线链路资源的消息， 也即通过判定传输层信令状 态来修改无线链路状态，最终达到终端节电和高效利用无线网络资源的目的。 附图概述
图 1为本发明线链路资源释放方法实施例 1的示意图；
图 2为本发明线链路资源释放方法实施例 2的示意图；
图 3为本发明线链路资源释放方法实施例 3的示意图； 图 4为本发明线链路资源释放方法实施例 4的示意图；
图 5为实施例 4中仅 UDP信令传输场景的处理策略的示例；
图 6为实施例 4中仅 TCP信令传输场景的处理策略的示例；
图 7 为实施例 4中 TCP信令和 UDP信令同时传输场景的处理策略的示 例；
图 8为本发明实施例用户设备的模块结构示意图。
本发明的较佳实施方式
下面结合附图和具体实施例对本发明所述技术方案作进一步的详细描述, 以使本领域的技术人员可以更好的理解本发明并能予以实施， 但所举实施例 不作为对本发明的限定。 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。
实施例 1
本发明无线链路资源释放的方法实施例 1 , 如图 1所示， 该方法包括： 步骤 101 : 用户设备监测数据通信过程中的传输层信令状态为仅包含
UDP信令；
步骤 102: 所述用户设备根据检测到的传输层信令状态预判是否满足对 应的无线链路资源释放的条件；
该实施例 1中，所述传输层信令状态为仅包含 UDP信令，所述无线链路 资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到所述最后一条 UDP信 令的发送时刻后的第一预定时间； 或，最后一条 UDP信令为所述用户设备接 收， 且达到所述最后一条 UDP信令的接收时刻后的第二预定时间。
步骤 103: 符合无线链路资源释放的条件时， 所述用户设备发送用于释 放无线链路资源的消息。
该用户设备发送的消息可以是无线链路资源释放的请求消息， 也可以是 通知网络侧当前适于释放无线链路资源的通知消息， 具体地， 本发明不做限 定。
实施例 2
本发明无线链路资源释放的方法实施例 2, 如图 2所示， 该方法包括： 步骤 201 : 用户设备监测数据通信过程中的传输层信令状态为仅包含 TCP信令；
步骤 202: 所述用户设备根据检测到的传输层信令状态预判是否满足对 应的无线链路资源释放的条件；
该实施例 2中， 所述传输层信令状态为仅包含 TCP信令， 所述无线链路 资源释放的条件为： 所有 TCP端口关闭。
步骤 203: 符合无线链路资源释放的条件时， 所述用户设备发送用于释 放无线链路资源的消息。
实施例 3
本发明无线链路资源释放的方法实施例 3 , 如图 3所示， 该方法包括： 步骤 301 : 用户设备监测到数据通信过程中的传输层信令状态为同时包 含 UDP信令和 TCP信令；
步骤 302: 所述用户设备根据检测到的传输层信令状态预判是否满足对 应的无线链路资源释放的条件；
该实施例中， 所述传输层信令状态为同时包含 UDP信令和 TCP信令， 所述无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到第一时刻和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第一时刻为达到所述最后一条 UDP信令的发送时刻后的第一预定时间的时刻； 或，
最后一条 UDP信令为所述用户设备接收，且达到第二时刻所和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第二时刻为所述最后一条 UDP 信令的接收时刻后的第二预定时间的时刻。
步骤 303: 符合无线链路资源释放的条件时， 所述用户设备发送用于释 放无线链路资源的消息。
路控制方面的协议和传输层协议的特点， 通过判定传输层信令状态来修改无 线链路状态， 最终达到终端节电和高效利用无线网络资源的目的。 更确切的 说， 终端在数据链路建立以后， 通过查询其传输层状态， 尤其是指 TCP或 UDP信令的状态， 预判终端继续传输数据的可能性， 也即， 终端的数据传输 是否已经暂时完成， 判断在释放无线链路的合理性， 然后通过发送无线链路 的管理信令， 断开和网络的数据连接， 从而在降低终端耗电同时， 使无线资 源及时释放， 緩解网络拥塞。
实施例 4
本发明无线链路资源释放的方法实施例 4 以 UMTS 网络下的 Release8 的 Fast dormancy机制为基础，终端结合各个场景为例进行说明，如图 4所示， 该方法包括：
步骤 401 :终端（也称用户设备）向网络申请无线链路资源，比如向 UMTS 网络发起 RRC链路连接请求；
步骤 402: 网络给终端分配无线链路资源， 终端建立和网络的无线连接 (比如终端完成 RRC连接和 RAB连接） ， 其中包含鉴权等身份认证过程； 步骤 403: 终端通过 PDP协议获取 IP地址和 DNS服务器；
如果终端本机存储的 IP消息或 DNS服务器地址有效， 终端需要向网络 申请 IP地址和 DNS服务器地址， 如果终端的 IP和 DNS地址未过期， 则使 用原有 IP地址和 DNS服务器， 无需执行步骤 403;
步骤 404: 终端和网络之间建立基于 IP的数据连接；
步骤 405: 终端和网络的数据通信过程中， 检测传输层信令状态； 可能传输 TCP信令或 UDP信令， 也有可能二者皆有； 如果终端向网络 发送基于 IP的 TCP消息请求， 终端需要和远端应用服务器建立 TCP连接； 如果数据通信过程中仅包含 UDP信令传输， 则执行步骤 406; 如果仅包 含 TCP信令的传输； 则执行步骤 407; 如果同时包含 UDP信令和 TCP信令 的传输； 则执行步骤 408;
步骤 406: 仅有 UDP信令传输的场景， 终端监测 UDP信令传输过程。 如果最后一条 UDP消息为终端所发， 在最后一条 UDP信令传输 T1秒 (比如 4秒)后之时， 然后执行步骤 409; 如果最后一条 UDP信令为终端所收， 在最 后一条 UDP信令传输 T2 (比如 2秒）秒后之时， 执行步骤步骤 409, 具体 如图 5所示；
可理解地， T1和 T2的取值可根据经验或统计确定。
步骤 407: 仅有 TCP信令传输的场景， 终端监测 TCP信令传输过程。 在 最后一个 TCP端口关闭时（即是第二个 FIN的 ACK之时 ) ,执行步骤 409, 具体如图 6所示；
步骤 408:既有 UDP信令又有 TCP传输的场景中， 终端监测传输层 TCP 和 UDP信令的传输状态。对于 UDP信令的传输过程，如果终端最后一条 UDP 信令为终端所发，比较最后一条 UDP传输信令 T1秒后的时间和 TCP的所有 端口关闭的时间， 以最后的时间点为准， 执行步骤 409; 如果终端最后一条 UDP信令为终端所收， 比较最后一条 UDP传输信令 T2秒后的时间和 TCP 的所有端口关闭的时间， 以最后的时间点为准， 执行步骤 409, 具体如图 7 所示；
步骤 409: 立即发送用于释放无线链路资源的消息 （比如 SCRI消息 ) , 请求断开网络连接； 网络判定是否允许终端断开无线链路，如果网络允许终端断开无线链路， 则断开无线链路， 比如网络发送 rrcConnectionReleaseComplete消息给终端， 终端也回复网络 rrcConnectionReleaseComplete消息， 终端进入 IDLE状态； 网络如果不允许终端断开无线链路且继续有数据传输， 则跳转到步骤 405;
Cell PCH或 URAPCH, 后续机制按照 3GPP对应 RRC规范定义执行或网络 主动释放链路。 为了实现上述方法实施例，本发明还提供了一种用户设备，如图 8所示， 该用户设备包括：
信令状态检测单元， 用于监测数据通信过程中的传输层信令状态； 条件预判单元， 用于根据检测到的传输层信令状态预判是否满足对应的 无线链路资源释放的条件；
释放消息发送单元， 用于在符合无线链路资源释放的条件时， 发送用于 释放无线链路资源的消息。
对应于方法实施例 1 , 所述传输层信令状态为仅包含 UDP信令， 所述无 线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到所述最后一条 UDP信 令的发送时刻后的第一预定时间； 或，最后一条 UDP信令为所述用户设备接 收， 且达到所述最后一条 UDP信令的接收时刻后的第二预定时间。
对应于方法实施例 2, 所述传输层信令状态为仅包含 TCP信令， 所述无 线链路资源释放的条件为： 所有 TCP端口关闭。
对应于方法实施例 3 ,所述传输层信令状态为同时包含 UDP信令和 TCP 信令， 所述无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到第一时刻和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第一时刻为达到所述最后一条 UDP信令的发送时刻后的第一预定时间的时刻； 或，
最后一条 UDP信令为所述用户设备接收，且达到第二时刻所和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第二时刻为所述最后一条 UDP 信令的接收时刻后的第二预定时间的时刻。
本发明无线链路资源释放的方法和用户设备在无线通信的环境下， 结合 无线链路控制方面的协议和传输层协议的特点， 通过判定传输层信令状态来 修改无线链路状态， 最终达到终端节电和高效利用无线网络资源的目的， 在 终端上实现高效调度， 在合适的时间断开无线连接， 控制数据流量的方法。 在目前智能机续航问题突出， 网络无线资源由于过多数据流量请求的当前环 境下， 在能源角度和无线资源角度， 都具有艮好的实施效果。 工业实用性
本发明实施例方法和传统的节电措施比较具有如下特点：
结合 OSI的传输状态， 将上层协议和底层协议相结合， 节电效果大幅提 高；
针对 UDP消息和 TCP消息的特点， 设计不同的策略， 使节电措施更加 合理高效；
适用于所有制式的无线网络， 兼容性良好；
适用于各种类型的终端， 尤其是智能终端。

Claims

权 利 要 求 书
1、 一种无线链路资源释放的方法， 该方法包括：
用户设备监测数据通信过程中的传输层信令状态；
所述用户设备根据检测到的传输层信令状态预判是否满足对应的无线链 路资源释放的条件；
符合无线链路资源释放的条件时， 所述用户设备发送用于释放无线链路 资源的消息。
2、 如权利要求 1 所述的方法， 其中， 所述传输层信令状态为仅包含 用户数据包协议（UDP )信令， 所述无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到所述最后一条 UDP信 令的发送时刻后的第一预定时间； 或，最后一条 UDP信令为所述用户设备接 收， 且达到所述最后一条 UDP信令的接收时刻后的第二预定时间。
3、 如权利要求 1 所述的方法， 其中， 所述传输层信令状态为仅包含 传输控制协议（TCP )信令， 所述无线链路资源释放的条件为： 所有 TCP端 口关闭。
4、 如权利要求 1 所述的方法， 其中， 所述传输层信令状态为同时包 含 UDP信令和 TCP信令， 所述无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到第一时刻和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第一时刻为达到所述最后一条 UDP信令的发送时刻后的第一预定时间的时刻； 或，
最后一条 UDP信令为所述用户设备接收，且达到第二时刻所和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第二时刻为所述最后一条 UDP 信令的接收时刻后的第二预定时间的时刻。
5、 一种用户设备， 该用户设备包括：
信令状态检测单元， 设置为： 监测数据通信过程中的传输层信令状态； 条件预判单元， 设置为： 根据检测到的传输层信令状态预判是否满足对 应的无线链路资源释放的条件； 释放消息发送单元， 设置为： 在符合无线链路资源释放的条件时， 发送 用于释放无线链路资源的消息。
6、 如权利要求 5 所述的用户设备， 其中， 所述传输层信令状态为仅 包含用户数据包协议（UDP )信令， 所述无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到所述最后一条 UDP信 令的发送时刻后的第一预定时间； 或，最后一条 UDP信令为所述用户设备接 收， 且达到所述最后一条 UDP信令的接收时刻后的第二预定时间。
7、 如权利要求 5 所述的用户设备， 其中， 所述传输层信令状态为仅 包含传输控制协议（TCP )信令， 所述无线链路资源释放的条件为： 所有 TCP 端口关闭。
8、 如权利要求 5 所述的用户设备， 其中， 所述传输层信令状态为同 时包含 UDP信令和 TCP信令， 所述无线链路资源释放的条件为：
最后一条 UDP信令为所述用户设备发送， 且达到第一时刻和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第一时刻为达到所述最后一条 UDP信令的发送时刻后的第一预定时间的时刻； 或，
最后一条 UDP信令为所述用户设备接收，且达到第二时刻所和所有 TCP 端口关闭的时刻中的后一时刻， 其中， 所述第二时刻为所述最后一条 UDP 信令的接收时刻后的第二预定时间的时刻。
PCT/CN2013/083103 2013-06-17 2013-09-09 无线链路资源释放的方法及用户设备 WO2014201771A1 (zh)

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EP13887268.4A EP2999295B1 (en) 2013-06-17 2013-09-09 Method for releasing wireless link resource and user equipment
US14/898,479 US9894710B2 (en) 2013-06-17 2013-09-09 Method for releasing wireless link resource and user equipment
ES13887268.4T ES2673172T3 (es) 2013-06-17 2013-09-09 Procedimiento para liberar recursos de enlace inalámbrico y equipo de usuario
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