WO2013017006A1 - 空闲状态下非连续接收的方法及装置 - Google Patents

空闲状态下非连续接收的方法及装置 Download PDF

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Publication number
WO2013017006A1
WO2013017006A1 PCT/CN2012/078427 CN2012078427W WO2013017006A1 WO 2013017006 A1 WO2013017006 A1 WO 2013017006A1 CN 2012078427 W CN2012078427 W CN 2012078427W WO 2013017006 A1 WO2013017006 A1 WO 2013017006A1
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Prior art keywords
enb
paging
drx cycle
sfn
value
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PCT/CN2012/078427
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English (en)
French (fr)
Inventor
夏金环
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华为技术有限公司
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Publication of WO2013017006A1 publication Critical patent/WO2013017006A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • H04W52/0212Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005Transmission of information for alerting of incoming communication
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention belongs to the field of communications, and in particular, to a method and apparatus for discontinuous reception in an idle state. Background technique
  • LTE Long Term Evolution
  • Radio radio
  • the Acces s Network (RAN) side defines two states of User Equipment (UE): idle state and connected state.
  • the UE in the idle state can perform the receiving system information broadcast, the monitoring paging channel, the cell reselection, and the like.
  • the radio resource control (RRC) context of the UE is not saved in the Evolved Node Base (eNB).
  • the RRC connection has been established between the UE and the eNB, and the RRC context of the UE is saved, and the UE in the connected state can perform the capture system message, the measurement and measurement report, and the data reception with the network. And send, listen to control channels, etc.
  • the eNB may configure a Di scont inuous Receptive (DRX) period according to the activity status of the UE.
  • DRX Di scont inuous Receptive
  • the UE in the idle state and the UE in the connected state are different.
  • the DRX mechanism the DRX mechanism used by the UE in the idle state may be: the UE reports the UE-specific DRX period T1 to the mobility management entity in the Non-Access Layer (NAS) message (Mobi li) Ty management Ent ty , ⁇ ), when the UE is called, the MME sends a core network (Core Network, CN) side paging message to the eNB according to the Tracking Area (TA) information, where the message includes the UE specific The DRX period T1 and the UE identifier (UE_ID), the eNB compares T1 and T2, where T2 is the cell default call period, and selects a shorter period to calculate the paging moment and sends the RAN side to the UE at the paging moment. Page message.
  • the specific calculation method of paging time can Calculated using the following formulas 1. 1 and 1.2.
  • i _ s f loor (UE_ ID/N) mod Ns 1. 2;
  • UE_ID represents the identity of the UE, which is equal to IMSI mod 1024, mod represents the modulo operation, and IMSI is the international mobile subscriber identity.
  • Ns is max (l, nB/T), which is the maximum value in 1 and nB/T.
  • N is equal to min (T, nB) , which is the minimum value in T and nB.
  • nB can take 4 ⁇ , 2 ⁇ , ⁇ , ⁇ /2, ⁇ /4, ⁇ /8, ⁇ /16, ⁇ /32, etc.
  • is the paging cycle.
  • SFN is the obtained system frame number
  • i _ s is the subframe number, and the system frame number and subframe number are used to obtain the paging time.
  • the prior art technical solution is found to have the following problems:
  • the unit of the period defaults to milliseconds.
  • the maximum paging period is only 512 ms. Therefore, the prior art technical solution has a short paging cycle, and the UE needs to wake up to listen to the paging message in each cycle, which is disadvantageous for the power saving of the UE. Summary of the invention
  • An object of the present invention is to provide a method and apparatus for discontinuous reception in an idle state.
  • the foregoing technical solution for DRX can be applied to a larger paging cycle, which is beneficial to power saving of the UE.
  • An embodiment of the present invention provides a method for discontinuously receiving DRX in an idle state, where the method includes:
  • the NAS message includes: a value of a discontinuous reception DRX cycle specified by the user equipment UE and a time unit of the DRX cycle, so that the MME compares the value of the DRX cycle
  • the time unit of the DRX cycle is carried in the CN message of the core network to the evolved base station eNB;
  • Another aspect of the embodiments of the present invention provides a method for paging an idle state user equipment UE, where the method includes: Receiving, by the mobile management entity MME, a core network CN side paging message, where the CN side paging message includes: a value of a UE-specific DRX cycle and a time unit of the DXR cycle;
  • Another aspect of the present invention provides an apparatus for discontinuously receiving a DRX in an idle state, where the apparatus includes:
  • a sending unit configured to send, to the mobility management entity MME, a non-access stratum NAS message, where the NAS message includes: a value of a discontinuous reception DRX cycle specified by the user equipment UE and a time unit of the DRX cycle, so that the MME
  • the value of the DRX cycle and the time unit of the DRX cycle are carried in the CN message of the core network and forwarded to the evolved base station eNB;
  • a calculating unit configured to calculate a paging moment according to a value of the DRX cycle and a time unit of the DRX cycle;
  • a receiving unit configured to receive, by the eNB, a radio access network RAN side paging message sent by the eNB.
  • Another embodiment of the present invention further provides an apparatus for paging an idle state user equipment UE, where the apparatus includes:
  • a receiving unit configured to receive a CN network side paging message sent by the mobility management entity MME, where the CN side paging message includes: a value of a UE-specific DRX cycle and a time unit of the DXR cycle;
  • a calculating unit configured to calculate a paging moment according to a value of the DRX cycle and a time unit of the DRX cycle;
  • a sending unit configured to send, by the paging moment, a radio access network RAN side paging message to the UE.
  • the technical solution can not only set the value of the DRX cycle, but also set the unit of the cycle (for example, set seconds or minutes, etc.), and based on the value of the cycle and the time unit, a larger paging frame can be obtained.
  • the value, the paging cycle (DXR cycle) of the UE can be extended, saving The power consumption of the UE and the calculation method of the paging time are not changed, and the UE in the prior art does not normally receive the paging message, which is better compatible with the prior art.
  • FIG. 1 is a flowchart of a method for discontinuous reception in an idle state according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an SFN extension provided by an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a paging moment provided by a specific embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for paging an idle state UE according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a paging method of a UE according to an embodiment of the present invention.
  • FIG. 6 is a structural diagram of an apparatus for discontinuous reception in an idle state according to an embodiment of the present invention.
  • FIG. 7 is a structural diagram of an apparatus for paging an idle state UE according to an embodiment of the present invention. detailed description
  • a method for discontinuous reception in an idle state is provided by the specific embodiment of the present invention.
  • the technical solution is as follows: The method is implemented between the UE, the MME, and the eNB. The method is as shown in FIG.
  • NAS message includes: a value of a period of the UE-specific DRX and a time unit of the period; causing the MME to carry the value of the DRX cycle and the time unit of the DRX cycle.
  • the evolved base station eNB forwarding to the evolved base station eNB in the CN network side paging message;
  • the RAN side paging message sent by the eNB is received at the paging moment.
  • the method for implementing S12 may be: calculating, by using a numerical value of a DRX cycle, a lower bit of the system frame number SFN; converting a unit of the DRX cycle into a high bit of the SFN; according to the high bit of the SFN and the SFN
  • the lower bits determine the paging frame and determine the paging instant based on the paging frame.
  • the above manner of calculating the SFN lower bits can calculate the SFN lower bits by using the paging time calculation formula (i.e., formula 1.1 in the background art) in the prior art.
  • the embodiment of the present invention is equivalent to using the calculated low-order bits and high-order bits of the SFN to jointly indicate the paging frame, so that the length of the obtained paging frame is extended, which is applicable to a larger DRX cycle, which is beneficial to the power saving of the UE. .
  • the decimal value corresponding to the time unit indicated by the high order bit of the SFN may be determined according to the above time unit and the default unit (ms) of the system, and the decimal value is converted into a binary value, which may be the high order bit of the SFN. For example, if the time unit is second, the corresponding decimal value can be 1000, and the corresponding SFN high bit can be: 1111101000.
  • the low-order bits may be: the lower 10 bits of the SFN, and the upper bits are specifically: bits other than the lower bits in the SFN.
  • the time unit of the cycle can be seconds, milliseconds or minutes.
  • the foregoing method may further include: sending a radio resource control RRC connection setup request message to the eNB; receiving a response message of the RRC connection setup request message sent by the eNB, where the response message includes: a high bit extension bit of the SFN of the eNB And determining a current SFN of the eNB based on the high-order extended bit value and a low-order bit broadcast by the eNB, and performing synchronization with the eNB according to the current SFN of the eNB.
  • the foregoing response message may further include a system information (SI) timer parameter.
  • the method may further include: immediately starting an SI timer based on the SI timer parameter, and checking system information before the SI timer expires. Whether the block SIB has been updated; if the SIB is updated, other SIB information is received according to the scheduling indication in the SIB. If there is no update, it indicates that the SI has not changed, and the UE continues to enter the sleep state and wakes up at the paging moment of the UE to receive the paging message.
  • SI system information
  • the timeout of the timer is determined according to a time threshold that is sent by the eNB, and the specific manner of sending the time threshold may be carried in a message between the eNB and the UE, and the message may be any message, such as RRC.
  • Reconfiguration messages, other SIB messages or Media Access Control (MAC) layer messages, etc. the present invention is not limited to the specific type of the above messages.
  • the foregoing corresponding message may be: an RRC connection reconfiguration message, an SIB message, or a MAC message, where the SIB message or the MAC message also includes a high bit extension bit value and an SI timer parameter of the SFN of the eNB.
  • the DRX cycle parameters participating in the calculation still adopt the basic value, and the time unit of the DRX cycle is converted into the high-order bit indication of the SFN, wherein the SFN expansion diagram is as shown in FIG. 2 .
  • the unit of the embodiment of the present invention sets ⁇ , and the time unit indicated by the high bit of the SFN should be
  • the decimal value 1000 that is, the 10 bits of the high bit extension of the SFN is the binary value 1111101000, and the lower 10 bits of the SFN are still the same as the prior art.
  • the selection of the time unit can be arbitrary, and is not limited to converting milliseconds into seconds, but also minutes or even hours. For example, when the time unit is minutes, it is increased by 60000 times with respect to the default time unit millisecond, and the value indicated by the high order bit of the SFN is 60000.
  • the method provided by the embodiment of the present invention further adds an SI timer, because the prior art notifies that the SI update occurs in the default paging cycle of the cell, and the MTC-UE that uses the extended DRX cycle uses the default paging of the cell.
  • the paging message may be in a sleep state, and the paging message of the SI update notification is not received.
  • the paging moment diagram is as shown in FIG. 3, where ⁇ indicates a default DRX period, MP indicates a modification period, and PF indicates a paging frame.
  • the SI includes some configuration information of the paging channel.
  • the eNB configures a timer of the SI validity period. After receiving the parameters of the timer, the UE starts to start the timer, and before the timer expires, the UE actively wakes up to receive the SIB1. And check whether the value tag value in S 1 is the same as the previously stored value. If it is different, it indicates that the SI has changed. According to the scheduling indication in SIB1, the other SIB information required by the UE is received. If the same, the SI does not change. The UE continues to enter a sleep state and wakes up at the paging moment of the UE to receive the paging message.
  • the method provided by the specific embodiment of the present invention can not only set the value of the DRX cycle, but also set the time unit of the cycle (for example, setting seconds or minutes, etc.), and calculate the paging frame by the value of the time unit and the DRX cycle, as compared with the current
  • the calculated paging frame value is larger, and can be used for a longer DRX cycle, so
  • the solution can extend the paging period (DXR period) of the UE, save the power of the UE, and the calculation method of the paging moment does not change, and does not affect the normal receiving of the paging message by the UE of the previous version, thereby achieving better compatibility with the prior art. .
  • the embodiment of the present invention further provides a method for paging an idle state UE, which is implemented by an eNB.
  • the method is as shown in FIG. 4, and includes:
  • S41 Receive a CN-side paging message sent by the mobility management entity MME, where the CN-side paging message includes: a value of a UE-specific DRX cycle and a time unit of the DXR cycle;
  • S42 Calculate a paging moment according to a value of the DRX cycle and a time unit of the DRX cycle. Send a radio access network RAN side paging message to the UE at the paging moment.
  • the method for implementing S42 may be: calculating, by using a value of the DRX cycle, a lower bit of the system frame number SFN; converting a unit of the DRX cycle into a high bit of the SFN; according to the high bit of the SFN
  • the bits and the lower bits of the SFN determine a paging frame and determine a paging instant based on the paging frame.
  • the specific method for calculating the lower bit and the upper bit can be referred to the related description in S12, and details are not described herein again.
  • the foregoing method may further include: receiving a radio resource control RRC connection setup request message sent by the UE, and sending a response message of the RRC connection setup request message to the UE, where the response message includes: a system frame number SFN
  • the high bit extends the bit value such that the UE determines the current SFN of the eNB based on the high bit extension bit value and the low bit of the eNB broadcast and performs synchronization with the eNB according to the current SFN of the eNB.
  • the foregoing method further includes:
  • the initial context request message includes: indication information indicating that the UE can use the extended DRX cycle; or the CN side paging message further includes: indicating that the UE can use the extension Indicates the DRX cycle.
  • indication information may be any form of indication information.
  • the foregoing response message includes: an RRC connection reconfiguration message, an SIB message, or a MAC message.
  • the foregoing response message may further include: an SI timer parameter.
  • the method provided by the embodiment of the present invention not only depends on the value of the DRX cycle but also the time unit of the DRX cycle when calculating the paging time, so it can extend the DRX cycle, has the advantage of power saving, and also ensures the paging moment.
  • the calculation formula is unchanged, so that the previous version of the UE is
  • the protocol can still receive paging messages normally, achieving better compatibility with the prior art.
  • An embodiment of the present invention provides an embodiment.
  • the embodiment further provides a paging method of the UE, where the method is completed between the UE, the MME, and the eNB.
  • the response message is an RRC connection reconfiguration message, where the homing is performed.
  • the method is used in the idle state of the UE.
  • the method is as shown in FIG. 5, and the method includes: S51.
  • the UE sends an RRC connection setup request message to the eNB.
  • the NAS message sent by the UE to the MME where the message carries the UE information, including the UE-specific DRX period and the time unit of the period, and further includes any form of indication information indicating that the UE can use the extended DRX period. .
  • the indication message may be, for example, an MTC indicator or a delay tolerant indicator or a low power indicator;
  • the eNB sends an RRC connection reconfiguration message to the UE, where the message includes: a high-order extended bit value of the SFN of the eNB, and an SI timer parameter.
  • the paging message of the CN side is sent by the MME to the eNB, where the paging message needs to include the following parameters: a UE-specific DRX cycle, a time unit corresponding to the DRX cycle, and “representing the UE may be Use any form of indication of the extended DRX cycle";
  • the eNB After receiving the paging message on the CN side, the eNB calculates the UE-specific DRX cycle (including the period value and the time unit of the cycle) according to the indication information indicating that the UE can use the extended DRX cycle. Call time
  • the eNB sends a RAN side paging message to the UE at the calculated paging moment, and the UE also calculates a paging moment by using the UE-specific paging cycle, and wakes up at the paging moment to receive the paging message sent by the eNB.
  • the high-order extended bit value of the SFN of the eNB may be used to enable the UE to broadcast based on the high-order extended bit value and the eNB.
  • the lower bit determines the current SFN of the eNB, and performs synchronization with the eNB according to the current SFN of the eNB;
  • the SI timer parameter may be used, Enabling the UE to immediately start the SI timer based on the SI timer parameter, and checking whether the system information block SIB has been updated before the SI timer expires; if the SIB is updated, receiving according to the scheduling indication in the SIB Other SIB information.
  • the SFN of the eNB is obtained by the indication of the number of high-order extension bits of the eNB of the eNB, and the current SFN of the eNB is obtained by using the indication of the number of the high-order extension bits and the low-order bits broadcasted by the eNB in the prior art.
  • the frame number can be longer. Thereby, after the DRX period is extended, the UE is enabled to perform synchronization to the eNB based on the current SFN of the eNB.
  • the method provided by the embodiment of the present invention not only depends on the value of the DRX cycle but also the time unit of the DRX cycle when calculating the paging time, so it can extend the DRX cycle, has the advantage of power saving, and also ensures the paging moment.
  • the calculation formula is unchanged, so that the previous version of the UE can still receive the paging message normally according to the existing protocol.
  • the embodiment of the present invention further provides a device for discontinuous reception in an idle state, and the device, as shown in FIG. 6, includes:
  • the sending unit 61 is configured to send, to the mobility management entity MME, a non-access stratum NAS message, where the NAS message includes: a value of a discontinuous reception DRX cycle specified by the user equipment UE and a time unit of the DRX cycle, so that the MME
  • the value of the DRX cycle and the time unit of the DRX cycle are carried in the CN message of the core network and forwarded to the evolved base station eNB;
  • the calculating unit 62 is configured to calculate a paging moment according to the value of the DRX cycle and a time unit of the DRX cycle;
  • the receiving unit 63 is configured to receive, by the eNB, a radio access network RAN side paging message sent by the eNB.
  • the foregoing calculating unit includes:
  • a low-level calculation module 621 configured to calculate a low-order bit of the system frame number SFN by using the value of the DRX cycle
  • a high-level calculation module 622 configured to convert a unit of the DRX cycle into a high-order bit of the SFN
  • a paging determining module 623 configured to determine, according to a high-order bit of the SFN and a low-order bit of the SFN, a paging frame, and The paging frame determines a paging moment.
  • the sending unit 61 in the foregoing apparatus is further configured to send a radio resource control RRC connection setup request message to the eNB;
  • the receiving unit 63 is further configured to receive the RRC connection setup request message sent by the eNB
  • the response message includes: a high-order extended bit value of the SFN of the eNB;
  • the calculating unit 62 is further configured to determine a current SFN of the eNB based on the high-order extended bit value and a low-order bit broadcast by the eNB, And performing synchronization with the eNB according to the current SFN of the eNB.
  • the foregoing response message may further include a system information SI timer parameter
  • the foregoing apparatus may further include:
  • the initiating unit 64 is configured to start the SI timer immediately according to the SI timer parameter, and the timing checking unit 65 is configured to check whether the system information block SIB has been updated before the SI timer expires; if the SIB occurs Update, then receive other SIB information according to the scheduling indication in the SIB.
  • the transmitting unit 61 or the receiving unit 63 may be an interface.
  • the computing unit 62 can be a processor, and can internally include a processor unit such as a low level computing module 621, a high level computing module 622, a paging determining module 623, and the like. These processors or their internal units can be implemented by hardware, such as logic integrated circuits.
  • the device provided by the specific embodiment of the present invention can not only set the value of the DRX cycle, but also set the time unit of the cycle (for example, setting seconds or minutes, etc.), so it can extend the paging period (DXR cycle) of the UE, and save the UE.
  • the power, and the calculation method of the paging moment, are not changed, and the previous version of the UE does not normally receive the paging message.
  • An embodiment of the present invention provides an apparatus for paging an idle state user equipment UE.
  • the apparatus is as shown in FIG. 7, and includes:
  • the receiving unit 71 is configured to receive a CN network side paging message sent by the mobility management entity MME, where the CN side paging message includes: a value of a UE-specific DRX cycle and a time unit of the DXR cycle;
  • the calculating unit 72 is configured to calculate a paging moment according to the value of the DRX cycle and a time unit of the DRX cycle;
  • the sending unit 73 is configured to send, by the paging moment, a radio access network RAN side paging message to the UE.
  • the calculating unit 72 includes:
  • a low-level calculation module 721 configured to calculate a low-order bit of the system frame number SFN by using the value of the DRX cycle
  • a high-level calculation module 722 configured to convert a unit of the DRX cycle into a high-order bit of the SFN
  • a paging determining module 723, configured to determine a paging frame according to a high-order bit of the SFN and a low-order bit of the SFN, and The paging frame determines a paging moment.
  • the receiving unit 71 of the foregoing apparatus is further configured to receive a radio resource control RRC connection setup request message sent by the UE;
  • the sending unit 73 is further configured to send a response message of the RRC connection setup request message to the UE, where the response message includes: a system frame number SFN a high bit extension bit value, so that the UE is based on the high bit extension bit
  • the value and the lower bits of the eNB broadcast determine the current SFN of the eNB and perform synchronization with the eNB according to the current SFN of the eNB.
  • receiving unit 71 and the transmitting unit 73 may be interfaces.
  • 72 can be a processor that can be implemented by hardware, such as a logic integrated circuit.
  • the device provided by the embodiment of the present invention not only depends on the value of the DRX cycle but also the time unit of the DRX cycle when calculating the paging time, so it can extend the DRX cycle, has the advantage of power saving, and also ensures the paging moment.
  • the calculation formula is unchanged, so that the previous version of the UE can still receive the paging message normally according to the existing protocol, so it can be compatible with the existing protocol.
  • the technical solution provided by the embodiment of the present invention has the advantages that the UE saves power and is compatible with the existing protocol.
  • a person skilled in the art may understand that all or part of the process of the method described in this embodiment may be embodied in the form of a software product, which may be stored in a storage medium, and includes a plurality of instructions for making a computer device (may be It is a personal computer, server, or network device, etc., that performs all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a random access memory (RAM, a random access memory), a magnetic disk, or an optical disk, and the like.

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Abstract

一种空闲状态下非连续接收的方法、装置及系统,该方法包括:向移动管理实体MME发送非接入层NAS消息,该NAS消息包括:用户设备UE特定的非连续接收DRX周期的数值和该DRX周期的时间单位,使得所述MME将所述DRX周期的数值和所述DRX周期的时间单位携带在核心网CN侧寻呼消息中转发至演进型基站eNB;根据所述DRX周期的数值和所述DRX周期的时间单位计算寻呼时刻,在该寻呼时刻接收所述eNB发送的无线接入网络RAN侧寻呼消息。本发明提供的技术方案具有延长DRX周期,节省UE电量的优点。

Description

空闲状态下非连续接收的方法及装置
本申请要求于 2011年 8月 1日提交中国专利局、申请号为 201110218010.9、 发明名称为"空闲状态下非连续接收的方法及装置"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
本发明属于通信领域, 尤其涉及一种空闲状态下非连续接收的方法及装 置。 背景技术
长期演进(Long Term Evolut ion , LTE )标准中无线接入网络( Radio
Acces s Network , RAN )侧定义了用户设备 ( User Equipment , UE ) 的两种 状态: 空闲态和连接态。 空闲态下的 UE可执行接收系统信息广播、 监听寻呼 信道、 小区重选等, 此时演进型基站(Evolved Node Base , eNB ) 中没有保 存 UE的无线资源控制 (Radio Resource Control , RRC )上下文; 在连接态 下, UE同 eNB之间已经建立了 RRC连接, 并保存有 UE的 RRC上下文, 在连接 态下的 UE可执行捕获系统消息、 测量和测量上报、 与网络之间进行数据的接 收和发送、 监听控制信道等。 另外, 为了节约 UE电池和提高资源的利用率, eNB 可以才艮据 UE 的活动性状况为其配置非连续接收 ( Di scont inuous Recept ion , DRX )周期。
在 LTE标准中, 对于空闲状态下的 UE和连接状态下的 UE采用了不同的
DRX机制,在空闲状态下的 UE采用的 DRX机制具体可以为: UE在非接入层( Non Acces s Stra tum, NAS ) 消息中, 将 UE特定的 DRX周期 T1上报给移动管理实 体(Mobi l i ty Management Ent i ty , ΜΜΕ ), 当 UE被叫时, MME才艮据艮综区 域 ( Tracking Area , TA )信息向 eNB发送核心网 ( Core Network, CN )侧寻 呼消息, 消息中包含 UE特定的 DRX周期 T1和 UE标识( UE_ ID ), eNB比较 T1 和 T2 , 其中 T2为小区默认的呼叫周期, 并选择较短的周期用来计算寻呼时刻 并在此寻呼时刻向 UE发送 RAN侧的寻呼消息。 寻呼时刻具体的计算方法可以 采用下述公式 1. 1和 1. 2计算得出。
SFN mod T= (T div N) * (UE_ ID mod N) 1. 1 ;
i _ s = f loor (UE_ ID/N) mod Ns 1. 2;
其 UE_ ID表示 UE的标识, 该标识等于 IMSI mod 1024 , mod表示取模运算, IMSI是国际移动用户识别码。 Ns是 max (l,nB/T) , 即 1和 nB/T中的最大值。 N等于 min (T,nB) , 即 T和 nB中的最小值。 nB可取 4Τ, 2Τ, Τ, Τ/2, Τ/4, Τ/8, Τ/16, Τ/ 32等。 Τ为寻呼周期。 SFN是求得的系统帧号, 而 i _ s是子帧号, 系 统帧号和子帧号用于得到寻呼时刻。
在实现本发明的过程中, 发现现有技术的技术方案存在如下问题: 现有技术中周期的单位默认为毫秒,从 LTE标准中的规定可以看出, 最大 的寻呼周期也仅为 512ms , 所以现有技术的技术方案寻呼周期短, 而 UE需要 在每个周期内醒来监听寻呼消息, 这不利于 UE的节电。 发明内容
本发明实施例的目的在于提供一种空闲状态下非连续接收的方法及装置, 上述关于 DRX的技术方案可适用于更大的寻呼周期, 有利于 UE的节电。
本发明实施例一方面提供一种空闲状态下非连续接收 DRX的方法, 所述 方法包括:
向移动管理实体 MME发送非接入层 NAS消息, 该 NAS消息包括: 用户 设备 UE特定的非连续接收 DRX周期的数值和该 DRX周期的时间单位,使得 所述 MME将所述 DRX周期的数值和所述 DRX周期的时间单位携带在核心网 CN侧寻呼消息中转发至演进型基站 eNB;
根据所述 DRX周期的数值和所述 DRX周期的时间单位计算寻呼时刻, 在该寻呼时刻接收所述 eNB发送的无线接入网络 RAN侧寻呼消息。
本发明实施例另一方面提供一种寻呼空闲状态用户设备 UE的方法,所述 方法包括: 接收移动管理实体 MME发送的核心网 CN侧寻呼消息, 该 CN侧寻呼消 息包括: UE特定的 DRX周期的数值和所述 DXR周期的时间单位;
根据所述 DRX周期的数值和所述 DRX周期的时间单位计算寻呼时刻; 在所述寻呼时刻向所述 UE发送无线接入网络 RAN侧寻呼消息。
本发明实施例另一方面还提供一种空闲状态下非连续接收 DRX的装置, 所述装置包括:
发送单元, 用于向移动管理实体 MME发送非接入层 NAS消息, 该 NAS 消息包括:用户设备 UE特定的非连续接收 DRX周期的数值和该 DRX周期的 时间单位,使得所述 MME将所述 DRX周期的数值和所述 DRX周期的时间单 位携带在核心网 CN侧寻呼消息中转发至演进型基站 eNB;
计算单元, 用于根据所述 DRX周期的数值和所述 DRX周期的时间单位 计算寻呼时刻;
接收单元,用于在该寻呼时刻接收所述 eNB发送的无线接入网络 RAN侧 寻呼消息。
本发明实施例另一方面又提供一种寻呼空闲状态用户设备 UE的装置,所 述装置包括:
接收单元, 用于接收移动管理实体 MME发送的核心网 CN侧寻呼消息, 该 CN侧寻呼消息包括: UE特定的 DRX周期的数值和所述 DXR周期的时间 单位;
计算单元, 用于根据所述 DRX周期的数值和所述 DRX周期的时间单位 计算寻呼时刻;
发送单元, 用于在所述寻呼时刻向所述 UE发送无线接入网络 RAN侧寻 呼消息。
在本发明实施例中, 技术方案不仅能设置 DRX周期的数值, 还可以设置 该周期的单位(例如设置秒或分钟等), 基于上述周期的数值和时间单位, 可 以得到更大的寻呼帧数值, UE 的寻呼周期 (DXR周期)可以被延长, 节省 UE的电量, 而且寻呼时刻的计算方法没有改变, 不影响现有技术中的 UE正 常接收寻呼消息, 实现与现有技术较好的兼容。 附图说明
图 1 是本发明具体实施方式提供的一种空闲状态下非连续接收的方法的 流程图;
图 2是本发明具体实施方式提供的 SFN扩展示意图;
图 3是本发明具体实施方式提供的寻呼时刻示意图;
图 4是本发明具体实施方式提供的一种寻呼空闲状态 UE的方法的流程 图;
图 5是本发明一实施例提供的一种 UE的寻呼方法的流程图;
图 6是本发明具体实施方式提供的一种空闲状态下非连续接收的装置的 结构图;
图 7是本发明具体实施方式提供的一种寻呼空闲状态 UE的装置的结构 图。 具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白, 以下结合附图及实 施例, 对本发明进行进一步详细说明。 应当理解, 此处所描述的具体实施例仅 仅用以解释本发明, 并不用于限定本发明。
本发明具体实施方式提供的一种空闲状态下非连续接收的方法,该方法实 现的技术场景为: 该方法在 UE、 MME和 eNB之间完成,该方法如图 1所示, 具体包括:
511、 向 MME发送 NAS消息, 该 NAS消息内包括: UE特定的 DRX的 周期的数值和该周期的时间单位; 使得所述 MME将所述 DRX周期的数值和 所述 DRX周期的时间单位携带在核心网 CN侧寻呼消息中转发至演进型基站 eNB;
512、根据 UE特定的 DRX周期的数值和周期的时间单位计算寻呼时刻, 在该寻呼时刻接收 eNB发送的 RAN侧寻呼消息。
可选的, 实现 S12的方法具体可以为: 用 DRX周期的数值计算得出系统 帧号 SFN的低位比特; 将 DRX周期的单位换算成 SFN的高位比特; 根据所 述 SFN的高位比特和 SFN的低位比特确定寻呼帧,并基于所述寻呼帧确定寻 呼时刻。 另外, 上述计算 SFN低位比特的方式可以采用现有技术中的寻呼时 刻计算公式(即背景技术中公式 1 .1 )计算得出 SFN低位比特。 本发明实施 例相当于采用计算得到的 SFN的低位比特和的高位比特来联合指示寻呼帧, 使得得到的寻呼帧的长度得到扩展, 适用于更大的 DRX周期, 有利于 UE的 节电。
可以根据上述时间单位与系统的默认单位 ( ms )确定 SFN的高位比特指 示的时间单位对应的十进制数值,将该十进制数值换算成二进制数值, 该二进 制数值即可以为 SFN的高位比特。 例如时间单位为秒, 则对应的十进制数值 可以为 1000, 则对应的 SFN 高位比特可以为: 1111101000。 另外为了与现 有的 LTE协议兼容, 上述低位比特具体可以为: SFN的低 10位比特, 高位 比特具体为: SFN 中除了低位比特以外的比特。 周期的时间单位可以为秒、 毫秒或分钟等。
可选的,上述方法还可以包括: 向上述 eNB发送无线资源控制 RRC连接 建立请求消息;接收 eNB发送的该 RRC连接建立请求消息的响应消息,该响 应消息包括: 该 eNB的 SFN的高位扩展比特数值; 基于该高位扩展比特数值 和该 eNB广播的低位比特确定该 eNB的当前 SFN ,根据该 eNB的当前 SFN 与该 eNB执行同步。
可选的, 上述响应消息还可以包括系统信息(SI )定时器参数; 上述方法 还可以包括: 基于所述 SI定时器参数立即启动 SI定时器, 且在所述 SI定时 器超时之前检查系统信息块 SIB是否发生了更新; 如果所述 SIB发生了更新, 则根据 SIB中的调度指示接收其它 SIB信息。 如果没有更新, 则说明 SI没有 发生变化, UE继续进入睡眠状态并在 UE的寻呼时刻醒来接收寻呼消息。 需 要说明的是, 上述定时器超时是根据 eNB下发的时间阈值确定, 该时间阈值 的具体下发方式可以为, 在 eNB与 UE之间的消息内携带, 该消息可以为任 意消息, 例如 RRC 重配置消息, 其他 SIB 消息或者媒体访问控制 (Media Access Control , MAC )层消息等, 本发明并不局限上述消息的具体类型。 需要说明的是, 上述相应消息具体可以为: RRC 连接重配置消息、 SIB 消息或 MAC消息, 其中上述 SIB消息或 MAC消息中也包括该 eNB的 SFN 的高位扩展比特数值和 SI定时器参数。
另外, 考虑为了使以前的版本的 UE不受影响, 参与计算的 DRX周期参 数仍然采用基本数值,而将 DRX周期的时间单位换算成 SFN的高位比特指示, 其中 SFN扩展示意图如图 2所示。 例如机对机通信用户设备 ( MTC-UE, 也 叫机器类通信用户设备)的 DRX周期为 T = 32秒。 对于参与寻呼时刻计算的 周期数值 Τ, 仍然令 Τ = 32 , 由于现有技术默认的 Τ单位是毫秒, 本发明实施 例设定 Τ 的单位是秒, SFN 的高位比特指示的时间单位应该是十进制数值 1000, 即 SFN的高位扩展的 10个比特为二进制数值 1111101000, SFN的低 10位仍与现有技术一样。 当然, 本领域技术人员明白, 时间单位的选择可以 是任意的, 不仅限于将毫秒转换为秒, 也可为分钟甚至小时等。 例如, 当时间 单位是分钟时, 其相对于默认的时间单位毫秒增长了 60000倍, 此时 SFN的 高位比特指示的数值就是 60000。
另外, 本发明实施例提供的方法还增加了 SI定时器, 因为现有技术中通 知 SI更新是发生在小区默认的寻呼周期内,采用了扩展 DRX周期的 MTC-UE 在小区默认的寻呼周期内可能处于睡眠状态,收不到 SI更新通知的寻呼消息, 该寻呼时刻示意图如图 3所示, 其中, Τ表示默认 DRX周期, MP表示修改 期, PF表示寻呼帧。 而 SI中包含寻呼信道的一些配置信息, 如果刚好是寻呼 信道的配置信息发生了变化, 而 UE又没有及时收到有效的 SI , 就造成 UE后 续无法正常接收寻呼消息, 故在 UE建立 RRC连接并确定使用扩展的 DRX 周期后, 由 eNB配置一个 SI有效期的定时器, UE收到这个定时器的参数后 开始启动该定时器,并在定时器超时前, UE主动醒来接收 SIB1 ,并检查 S 1 中的 valuetag值和之前存储的值是否相同,如果不同,则说明 SI发生了变化, 按照 SIB1 中的调度指示接收 UE需要的其他 SIB信息; 如果相同, 则说明 SI 没有发生变化, UE继续进入睡眠状态并在 UE的寻呼时刻醒来接收寻呼消息。
本发明具体实施方式提供的方法不仅能设置 DRX周期的数值, 还可以设 置该周期的时间单位 (例如设置秒或分钟等),通过时间单位和 DRX周期的数 值计算得到寻呼帧,相对于现有技术仅依靠 DRX周期的数值得到寻呼帧而言, 计算得到的寻呼帧数值更大, 可以使用适用于更长的 DRX周期, 所以通过上 述方案能够延长 UE的寻呼周期(DXR周期), 节省 UE的电量, 而且寻呼时 刻的计算方法没有改变, 不影响以前版本的 UE正常接收寻呼消息, 实现与现 有技术较好的兼容。
本发明具体实施方式还提供一种寻呼空闲状态 UE的方法,该方法由 eNB 完成, 该方法如图 4所示, 包括:
S41、 接收移动管理实体 MME发送的核心网 CN侧寻呼消息, 该 CN侧 寻呼消息包括: UE特定的 DRX周期的数值和所述 DXR周期的时间单位;
S42、根据所述 DRX周期的数值和所述 DRX周期的时间单位计算寻呼时 刻; 在所述寻呼时刻向所述 UE发送无线接入网络 RAN侧寻呼消息。
可选的, 实现 S42的方法具体可以为: 用所述 DRX周期的数值计算得 出系统帧号 SFN的低位比特; 将所述 DRX周期的单位换算成 SFN的高位比 特; 根据所述 SFN的高位比特和所述 SFN的低位比特确定寻呼帧, 并基于所 述寻呼帧确定寻呼时刻。 另外,计算低位比特和高位比特的具体方法可以参见 实现 S12中的相关描述, 这里不再贅述。
可选的, 上述方法还可以包括: 接收所述 UE发送的无线资源控制 RRC 连接建立请求消息;向所述 UE发送所述 RRC连接建立请求消息的响应消息, 该响应消息包括: 系统帧号 SFN高位扩展比特数值, 以使所述 UE得基于所 述高位扩展比特数值和 eNB广播的低位比特确定所述 eNB的当前 SFN并根 据所述 eNB的当前 SFN与所述 eNB执行同步。
可选的, 上述方法还包括:
接收所述 MME发送的初始上下文请求消息,该初始上下文请求消息包括: 表示所述 UE能使用扩展的 DRX周期的指示信息; 或者所述 CN侧寻呼消息 还包括: 表示所述 UE能够使用扩展的 DRX周期的指示信息。
需要说明的是, 上述指示信息可以为任何形式的指示信息。
可选的, 上述响应消息包括: RRC连接重配置消息、 SIB消息或 MAC消 息。
可选的, 上述响应消息还可以包括: SI定时器参数。
本发明实施例提供的方法在计算寻呼时刻时, 不仅仅依靠 DRX周期的数 值, 还需要 DRX周期的时间单位, 所以其能够延长 DRX周期, 具有省电的 优点, 而且还保证了寻呼时刻的计算公式不变, 使得以前版本的 UE按照现有 协议依然能够正常接收寻呼消息, 实现与现有技术较好的兼容。
本发明具体实施方式提供一实施例, 本实施例还提供一种 UE 的寻呼方 法, 该方法在 UE、 MME和 eNB之间完成, 该响应消息以 RRC连接重配置 消息为例,其中该寻呼方法在 UE空闲状态下使用,该方法如图 5所示, 包括: S51、 UE向 eNB发送 RRC连接建立请求消息;
552、 UE向 MME发送的 NAS消息, 该消息中携带 UE的信息, 包括 UE特定的 DRX周期以及周期的时间单位, 还需要包括用于表示该 UE可以 使用扩展的 DRX周期的任何形式的指示信息。
上述指示消息例如可以是 MTC indicator或 delay tolerant indicator或 low power indicator等;
553、 MME向 eNB发送的初始上下文请求 ( Initial context request ) 消 息, MME在该消息中将有关 UE的一些信息发送给 eNB, 该信息可以包括: UE无线接入承载对应的信息、 UE的能力信息等, 这里需要加上 "表示该 UE 可以使用扩展的 DRX周期的任何形式的指示信息";
S54、 eNB 向 UE 发送 RRC 连接重配置消息 ( RRC connection reconfiguration ) ,该消息中包括: 该 eNB 的 SFN 的高位扩展比特数值以及 SI定时器参数;
555、 当 UE有被叫时, CN侧的寻呼消息由 MME发送给 eNB, 该寻呼 消息中需要包含以下参数: UE特定的 DRX周期、 DRX周期对应的时间单位, 以及 "表示该 UE可以使用扩展的 DRX周期的任何形式的指示信息";
556、 eNB收到 CN侧的寻呼消息后, 根据 "表示该 UE可以使用扩展的 DRX周期的指示信息", eNB将选择 UE特定的 DRX周期 (包括周期数值和 周期的时间单位)来计算寻呼时刻;
557、 eNB在计算的寻呼时刻向 UE发送 RAN侧寻呼消息, UE也将用 UE特定的寻呼周期计算寻呼时刻,并在该寻呼时刻醒来接收 eNB发送的寻呼 消息。
需要说明的是, 上述寻呼时刻的具体计算方法可以参见上述 S12 中的相 关描述, 另外, 上述该 eNB的 SFN的高位扩展比特数值可以用于, 使 UE基 于该高位扩展比特数值和该 eNB广播的低位比特确定该 eNB的当前 SFN , 根据该 eNB的当前 SFN与该 eNB执行同步; 上述 SI定时器参数可以用于, 使 UE基于所述 SI定时器参数立即启动 SI定时器, 且在所述 SI定时器超时 之前检查系统信息块 SIB是否发生了更新; 如果所述 SIB发生了更新, 则根 据 SIB中的调度指示接收其它 SIB信息。由于 UE收到该 eNB的 SFN的高位 扩展比特数, 可以通过该高位扩展比特数的指示结合现有技术中该 eNB广播 的低位比特, 获取 eNB当前的 SFN , 使得 eNB当前的 SFN得到扩展, 指示 的帧号可以更长。从而在 DRX周期扩展后,使得 UE能够基于所述 eNB当前 的 SFN执行向所述 eNB的同步。
本发明实施例提供的方法在计算寻呼时刻时, 不仅仅依靠 DRX周期的数 值, 还需要 DRX周期的时间单位, 所以其能够延长 DRX周期, 具有省电的 优点, 而且还保证了寻呼时刻的计算公式不变, 使得以前版本的 UE按照现有 协议依然能够正常接收寻呼消息。
本发明实施例还提供一种空闲状态下非连续接收的装置, 该装置如图 6 所示, 包括:
发送单元 61 , 用于向移动管理实体 MME发送非接入层 NAS 消息, 该 NAS消息包括: 用户设备 UE特定的非连续接收 DRX周期的数值和该 DRX 周期的时间单位,使得所述 MME将所述 DRX周期的数值和所述 DRX周期的 时间单位携带在核心网 CN侧寻呼消息中转发至演进型基站 eNB;
计算单元 62 , 用于根据所述 DRX周期的数值和所述 DRX周期的时间单 位计算寻呼时刻;
接收单元 63,用于在该寻呼时刻接收所述 eNB发送的无线接入网络 RAN 侧寻呼消息。
可选的, 上述计算单元包括:
低位计算模块 621, 用于用所述 DRX周期的数值计算得出系统帧号 SFN 的低位比特;
高位计算模块 622 ,用于将所述 DRX周期的单位换算成 SFN的高位比特; 寻呼确定模块 623,用于根据所述 SFN的高位比特和所述 SFN的低位比 特确定寻呼帧, 并基于所述寻呼帧确定寻呼时刻。
可选的, 上述装置中的发送单元 61 , 还用于向所述 eNB发送无线资源控 制 RRC连接建立请求消息;
接收单元 63, 还用于接收所述 eNB发送的所述 RRC连接建立请求消息 的响应消息, 该响应消息包括: 所述 eNB的 SFN的高位扩展比特数值; 计算单元 62,还用于基于所述高位扩展比特数值和所述 eNB广播的低位 比特确定所述 eNB的当前 SFN , 并根据所述 eNB的当前 SFN与所述 eNB 执行同步。
可选的, 上述响应消息还可以包括系统信息 SI定时器参数, 且上述装置 还可以包括:
启动单元 64, 用于基于所述 SI定时器参数立即启动 SI定时器; 定时检查单元 65,用于在所述 SI定时器超时之前检查系统信息块 SIB是 否发生了更新; 如果所述 SIB发生了更新, 则根据 SIB中的调度指示接收其 它 SIB信息。
需要说明的是, 发送单元 61或接收单元 63可以是接口。 计算单元 62可 以是处理器, 内部可包括低位计算模块 621、 高位计算模块 622、 寻呼确定模 块 623等处理器单元。 这些处理器或其内部单元可以通过硬件, 如逻辑集成 电路实现。
本发明具体实施方式提供的装置不仅能设置 DRX周期的数值, 还可以设 置该周期的时间单位(例如设置秒或分钟等), 所以其能够延长 UE的寻呼周 期(DXR周期), 节省 UE的电量, 而且寻呼时刻的计算方法没有改变, 不影 响以前版本的 UE正常接收寻呼消息。
本发明实施例提供一种寻呼空闲状态用户设备 UE的装置, 该装置如图 7 所示, 包括:
接收单元 71 , 用于接收移动管理实体 MME发送的核心网 CN侧寻呼消 息, 该 CN侧寻呼消息包括: UE特定的 DRX周期的数值和所述 DXR周期的 时间单位;
计算单元 72 , 用于根据所述 DRX周期的数值和所述 DRX周期的时间单 位计算寻呼时刻;
发送单元 73,用于在所述寻呼时刻向所述 UE发送无线接入网络 RAN侧 寻呼消息。
可选的, 上述计算单元 72包括:
低位计算模块 721, 用于用所述 DRX周期的数值计算得出系统帧号 SFN 的低位比特; 高位计算模块 722 ,用于将所述 DRX周期的单位换算成 SFN的高位比特; 寻呼确定模块 723,用于根据所述 SFN的高位比特和所述 SFN的低位比 特确定寻呼帧, 并基于所述寻呼帧确定寻呼时刻。
可选的, 上述装置的接收单元 71 , 还用于接收所述 UE发送的无线资源 控制 RRC连接建立请求消息;
上述发送单元 73,还用于向所述 UE发送所述 RRC连接建立请求消息的 响应消息, 该响应消息包括: 系统帧号 SFN高位扩展比特数值, 以使所述 UE 得基于所述高位扩展比特数值和 eNB广播的低位比特确定所述 eNB 的当前 SFN并根据所述 eNB的当前 SFN与所述 eNB执行同步。
需要说明的是, 上述接收单元 71 和发送单元 73可以是接口。 计算单元
72可以是处理器, 可通过硬件, 如逻辑集成电路实现。
本发明实施例提供的装置在计算寻呼时刻时, 不仅仅依靠 DRX周期的数 值, 还需要 DRX周期的时间单位, 所以其能够延长 DRX周期, 具有省电的 优点, 而且还保证了寻呼时刻的计算公式不变, 使得以前版本的 UE按照现有 协议依然能够正常接收寻呼消息, 所以其能够兼容现有的协议。
综上所述, 本发明实施例提供的技术方案具有 UE节电, 兼容现有协议的 优点。
本领域技术人员可以理解本实施例描述的方法的全部或部分流程可以以 软件产品的形式体现出来, 该计算机软件产品可存储在一个存储介质中, 包括 若干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络设 备等 )执行本发明各个实施例所述方法的全部或部分步骤。 而前述的存储介质 包括: U盘、 移动硬盘、 只读存储器(ROM , Read-Only Memory )、 随机存 取存储器(RAM , Random Access Memory )、 磁碟或者光盘等各种可以存储 程序代码的介质。
以上所述仅为本发明的较佳实施例而已, 并不用以限制本发明, 凡在本发 明的精神和原则之内所作的任何修改、等同替换和改进等, 均应包含在本发明 的保护范围之内。

Claims

权 利 要 求
1、一种空闲状态下非连续接收 DRX的方法,其特征在于,所述方法包括: 向移动管理实体 MME发送非接入层 NAS消息, 该 NAS消息包括: 用户 设备 UE特定的 DRX周期的数值和该 DRX周期的时间单位, 使得所述 MME 将所述 DRX周期的数值和所述 DRX周期的时间单位携带在核心网 CN侧寻呼 消息中转发至演进型基站 eNB;
根据所述 DRX周期的数值和所述 DRX周期的时间单位计算寻呼时刻, 在该寻呼时刻接收所述 eNB发送的无线接入网络 RAN侧寻呼消息。
2、根据权利要求 1所述的方法, 其特征在于, 所述根据所述 DRX周期的 数值和所述 DRX周期的时间单位计算寻呼时刻包括:
用所述 DRX周期的数值计算得出系统帧号 SFN的低位比特;
将所述 DRX周期的单位换算成 SFN的高位比特;
根据所述 SFN的高位比特和所述 SFN的低位比特确定寻呼帧, 并基于所 述寻呼帧确定寻呼时刻。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 还包括:
向所述 eNB发送无线资源控制 RRC连接建立请求消息;
接收所述 eNB发送的所述 RRC连接建立请求消息的响应消息,该响应消 息包括: 所述 eNB的 SFN的高位扩展比特数值;
基于所述高位扩展比特数值和所述 eNB广播的低位比特确定所述 eNB的 当前 SFN, 根据所述 eNB的当前 SFN与所述 eNB执行同步。
4, 根据权利要求 3所述的方法, 其特征在于, 所述响应消息还包括系统 信息 SI定时器参数; 所述方法还包括: 基于所述 SI定时器参数立即启动 SI定时器, 且在所述 SI定时器超时之前检查系统信息块 SIB是否发生了更新; 如果所述 SIB发生 了更新, 则根据 SIB中的调度指示接收其它 SIB信息。
5、 根据权利要求 3或 4所述的方法, 其特征在于, 所述响应消息包括: RRC连接重配置消息、 系统信息块 SIB消息或媒体访问控制 MAC消息。
6、 一种寻呼空闲状态用户设备 UE的方法, 其特征在于, 所述方法包括: 接收移动管理实体 MME发送的核心网 CN侧寻呼消息, 该 CN侧寻呼消 息包括: UE特定的非连续接收 DRX周期的数值和所述 DXR周期的时间单位; 根据所述 DRX周期的数值和所述 DRX周期的时间单位计算寻呼时刻; 在所述寻呼时刻向所述 UE发送无线接入网络 RAN侧寻呼消息。
7、根据权利要求 6所述的方法, 其特征在于, 所述根据所述 DRX周期的 数值和所述 DRX周期的时间单位计算寻呼时刻包括:
用所述 DRX周期的数值计算得出系统帧号 SFN的低位比特;
将所述 DRX周期的单位换算成 SFN的高位比特;
根据所述 SFN的高位比特和所述 SFN的低位比特确定寻呼帧, 并基于所 述寻呼帧确定寻呼时刻。
8、 根据权利要求 6或 7所述的方法, 其特征在于, 还包括:
接收所述 UE发送的无线资源控制 RRC连接建立请求消息;
向所述 UE发送所述 RRC连接建立请求消息的响应消息, 该响应消息包 括: 系统帧号 SFN高位扩展比特数值, 以使所述 UE得基于所述高位扩展比 特数值和 eNB广播的低位比特确定所述 eNB的当前 SFN并根据所述 eNB的 当前 SFN与所述 eNB执行同步。
9、 根据权利要求 6至 8中任一项所述的方法, 其特征在于, 还包括: 接收所述 MME发送的初始上下文请求消息, 该初始上下文请求消息包 括: 表示所述 UE能使用扩展的 DRX周期的指示信息; 或者
所述 CN侧寻呼消息还包括: 表示所述 UE能够使用扩展的 DRX周期的 指示信息。
10、 根据权利要求 8所述的方法, 其特征在于, 所述响应消息包括: RRC连接重配置消息、 系统信息块 SIB消息或媒体访问控制 MAC消息。
11、 一种空闲状态下非连续接收 DRX的装置, 其特征在于, 所述装置包 括:
发送单元, 用于向移动管理实体 MME发送非接入层 NAS消息, 该 NAS 消息包括:用户设备 UE特定的非连续接收 DRX周期的数值和该 DRX周期的 时间单位,使得所述 MME将所述 DRX周期的数值和所述 DRX周期的时间单 位携带在核心网 CN侧寻呼消息中转发至演进型基站 eNB;
计算单元, 用于根据所述 DRX周期的数值和所述 DRX周期的时间单位 计算寻呼时刻;
接收单元,用于在该寻呼时刻接收所述 eNB发送的无线接入网络 RAN侧 寻呼消息。
12、 根据权利要求 11所述的装置, 其特征在于, 所述计算单元包括: 低位计算模块,用于用所述 DRX周期的数值计算得出系统帧号 SFN的低 位比特;
高位计算模块, 用于将所述 DRX周期的单位换算成 SFN的高位比特; 寻呼确定模块, 用于根据所述 SFN的高位比特和所述 SFN的低位比特确 定寻呼帧, 并基于所述寻呼帧确定寻呼时刻。
13 , 根据权利要求 11或 12所述的装置, 其特征在于, 所述发送单元, 还 用于向所述 eNB发送无线资源控制 RRC连接建立请求消息;
所述接收单元,还用于接收所述 eNB发送的所述 RRC连接建立请求消息 的响应消息, 该响应消息包括: 所述 eNB的 SFN的高位扩展比特数值;
所述计算单元, 还用于基于所述高位扩展比特数值和所述 eNB广播的低 位比特确定所述 eNB的当前 SFN, 并根据所述 eNB的当前 SFN与所述 eNB 执行同步。
14、 根据权利要求 11至 13中任一项所述的装置, 其特征在于,
所述响应消息还包括系统信息 SI定时器参数, 且所述装置还包括: 启动单元, 用于基于所述 SI定时器参数立即启动 SI定时器;
定时检查单元, 用于在所述 SI定时器超时之前检查系统信息块 SIB是否 发生了更新; 如果所述 SIB发生了更新, 则根据 SIB 中的调度指示接收其它 SIB信息。
15、一种寻呼空闲状态用户设备 UE的装置,其特征在于,所述装置包括: 接收单元, 用于接收移动管理实体 MME发送的核心网 CN侧寻呼消息, 该 CN侧寻呼消息包括: UE特定的 DRX周期的数值和所述 DXR周期的时间 单位;
计算单元, 用于根据所述 DRX周期的数值和所述 DRX周期的时间单位 计算寻呼时刻;
发送单元, 用于在所述寻呼时刻向所述 UE发送无线接入网络 RAN侧寻 呼消息。
16、 根据权利要求 15所述的装置, 其特征在于, 所述计算单元包括: 低位计算模块,用于用所述 DRX周期的数值计算得出系统帧号 SFN的低 位比特;
高位计算模块, 用于将所述 DRX周期的单位换算成 SFN的高位比特; 寻呼确定模块, 用于根据所述 SFN的高位比特和所述 SFN的低位比特确 定寻呼帧, 并基于所述寻呼帧确定寻呼时刻。
17、 根据权利要求 15或 16所述的装置, 其特征在于,
所述接收单元, 还用于接收所述 UE发送的无线资源控制 RRC连接建立 请求消息;
所述发送单元, 还用于向所述 UE发送所述 RRC连接建立请求消息的响 应消息, 该响应消息包括: 系统帧号 SFN 高位扩展比特数值, 以使所述 UE 得基于所述高位扩展比特数值和 eNB 广播的低位比特确定所述 eNB 的当前 SFN并根据所述 eNB的当前 SFN与所述 eNB执行同步。
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