WO2015176268A1 - 一种用户设备节约电量的方法和设备 - Google Patents

一种用户设备节约电量的方法和设备 Download PDF

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Publication number
WO2015176268A1
WO2015176268A1 PCT/CN2014/078106 CN2014078106W WO2015176268A1 WO 2015176268 A1 WO2015176268 A1 WO 2015176268A1 CN 2014078106 W CN2014078106 W CN 2014078106W WO 2015176268 A1 WO2015176268 A1 WO 2015176268A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
downlink data
message
sent
data
Prior art date
Application number
PCT/CN2014/078106
Other languages
English (en)
French (fr)
Inventor
时晓岩
郭小龙
张万强
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP14892440.0A priority Critical patent/EP3139677B1/en
Priority to BR122017010678A priority patent/BR122017010678A2/pt
Priority to PCT/CN2014/078106 priority patent/WO2015176268A1/zh
Priority to BR112016027177A priority patent/BR112016027177A8/pt
Priority to CN201480021981.6A priority patent/CN105325041B/zh
Priority to AU2014395016A priority patent/AU2014395016A1/en
Priority to EP19191755.8A priority patent/EP3634045A1/en
Priority to RU2016149621A priority patent/RU2667051C2/ru
Publication of WO2015176268A1 publication Critical patent/WO2015176268A1/zh
Priority to US15/358,616 priority patent/US10299211B2/en
Priority to AU2018214080A priority patent/AU2018214080B2/en

Links

Classifications

    • 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
    • H04W52/0225Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W68/00User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/28Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W60/00Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
    • H04W60/02Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration by periodical registration
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • 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 relates to the field of communications, and in particular, to a method and an apparatus for saving power of a user equipment. Background technique
  • user equipment In the field of communication technology, user equipment (UE, User Equipment) usually has two states: Connected and Idle. When the user equipment is in the connected state, it can perform data transmission with the network side. When there is no data transmission for a long time, the user equipment enters an idle state. In this state, when the network side receives the downlink data of the user, the service request process is triggered. At this time, the mobility management entity (MME, Mobility Management Entity) initiates paging in the tracking area where the user equipment is located, and the user The device will respond to the MME's page and enter the connected state to receive data. In order to enable the network side to page to the user equipment when the downlink data arrives, the user equipment needs to perform a Tracking Area Update (TAU) to inform the tracking area where the network side user equipment is located.
  • TAU Tracking Area Update
  • the user equipment When the user equipment is in the power saving mode, the user equipment does not respond to the paging on the network side, so the downlink data from the external network server will not reach the user equipment, so that the service from the external network server will not be implemented.
  • the user equipment In order to enable the service from the external network server to be implemented, the user equipment needs to actively establish a data bearer after each TAU is initiated, and send a data packet to the external network server to query whether there is a service request or data triggered by the external network server. .
  • the frequency of the external network server triggering the service is much lower than the frequency at which the user equipment initiates the TAU. Therefore, each time the user equipment initiates the TAU process, the data bearer needs to trigger a large amount of signaling, resulting in a large number of Signaling waste and large loss of user power.
  • the present invention provides a method and apparatus for saving power of a user equipment to solve the problem of signaling waste and power loss.
  • a core network node device configured to: when it is determined that there is downlink data sent to the user equipment, and determine that the user equipment is in a power saving mode, record that the user equipment has downlink data sent to the user equipment when saving the power mode ;
  • a receiving unit configured to receive a tracking area update TAU request initiated by the user equipment
  • a sending unit configured to: when receiving the TAU request initiated by the user equipment received by the receiving unit, and determining that the user exists in the recording unit
  • the device sends an indication message to the user equipment, where the indication message is used to indicate that the user equipment sends the information to the user when saving the power mode.
  • Downlink data of the device so that the user equipment obtains the downlink data after establishing a data bearer.
  • the embodiment of the present invention further has a first possibility, wherein the receiving unit is further configured to:
  • the device further includes a determining unit for:
  • the embodiment of the present invention further has a second possibility, where the sending unit is specifically configured to:
  • TAU accept message is used to notify the user equipment that there is downlink data sent to the user equipment when saving the power mode, and Instructing the user equipment to initiate a service request to establish a data bearer after receiving the TAU accept message.
  • the embodiment of the present invention further has a third possibility, wherein the device further includes:
  • a determining unit configured to: when the determining unit determines, according to the downlink data notification message received by the receiving unit, that the downlink data is sent to the user equipment, and the downlink data notification message carries the source address of the downlink data, according to the downlink data
  • the source address determines whether there is downlink data from an external network server of the user equipment; When the downlink data of the external network server is recorded, when the user equipment saves the power mode, there is an event that the downlink data arrives.
  • the embodiment of the present invention further has a fourth possibility, wherein the recording unit is further configured to: when the downlink data of the external network server is prepared, the execution record is not triggered.
  • the recording unit is further configured to: when the downlink data of the external network server is prepared, the execution record is not triggered.
  • the sending unit is further configured to: use the downlink data of the external network server, the operation of sending the indication message to the user equipment is not triggered.
  • the embodiment of the present invention further has a fifth possibility, wherein the sending unit is specifically configured to:
  • the determining unit determines, according to the downlink data notification message received by the receiving unit, that the downlink data is sent to the user equipment, and the downlink data notification message carries the source address of the downlink data, sending, by the user equipment, the downlink An indication message of the source address of the data, the indication message is used to indicate that the user equipment determines, according to the source address of the downlink data, whether the downlink data is from an external network server of the user equipment, to determine whether the user equipment is A service request is initiated to establish a data bearer.
  • the embodiment of the present invention further has a sixth possibility, wherein the recording unit is specifically configured to: when the core When the network node device is the source mobility management entity MME, the source MME records an event of the downlink data sent to the user equipment when the user equipment saves the power mode;
  • the sending unit is specifically configured to:
  • the embodiment of the present invention further has a seventh possibility, wherein the indication message sent by the sending unit is a user plane
  • the embodiment of the present invention further has an eighth possibility, where the sending unit is specifically configured to:
  • the initial user equipment context establishment request message is sent to establish a data bearer and notify the user equipment that when the power saving mode is present, there is a message sent to the user equipment. Downstream data.
  • the embodiment of the present invention further has a ninth possibility, wherein the sending unit is specifically configured to:
  • the device further includes:
  • the response message receiving unit is configured to receive an initial context setup response message sent by the wireless access node device after establishing an RRC bearer with the user equipment.
  • the embodiment of the present invention further has a tenth possibility, wherein the sending unit is further configured to:
  • the TAU accept message is sent to the user equipment.
  • a user equipment including:
  • the indication message receiving unit is configured to receive, after receiving the TAU request sent by the requesting unit, and determining that the user equipment has an event of downlink data sent to the user equipment when saving the power mode, to the An indication message sent by the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode;
  • a data obtaining unit configured to determine, according to the indication message received by the indication message receiving unit, when the downlink data sent to the user equipment exists in the power saving mode, obtain the downlink data after establishing the data bearer.
  • the embodiment of the present invention further has an eleventh possibility, wherein the indication message receiving unit is specifically configured to:
  • TAU accept message sent by the core network node device, where the TAU accept message is further used to indicate that the user equipment initiates a service request to establish a data bearer after receiving the TAU message;
  • the service requesting unit is configured to initiate a service request to the network side to establish a data bearer after receiving the TAU accept message sent by the core network node device received by the indication message receiving unit.
  • the embodiment of the present invention further has a twelfth possible, wherein the device further includes:
  • a determining unit configured to determine, according to a source address of the downlink data, whether the downlink data is from an external network server of the user equipment, when a TAU accept message received by the indication message receiving unit includes a source address of the downlink data ;
  • the service requesting unit is specifically configured to: when the determining unit determines that the downlink data is from an external network server of the user equipment, initiate a service request to the network side to establish a data bearer.
  • the embodiment of the present invention further has a thirteenth possibility, wherein the indication message receiving unit is specifically configured to:
  • the device further includes:
  • an RRC bearer establishing unit configured to establish an RRC bearer with the radio access node device after receiving the data bearer setup message received by the indication message receiving unit.
  • the embodiment of the present invention further has a fourteenth possibility, wherein the data obtaining unit is specifically configured to: After the data bearer is determined to be established with the network side, the data packet is sent to the network side to obtain the downlink data. After determining the data bearer with the network side, the downlink data sent by the network side after the data bearer is established is received.
  • a method for saving power by a user equipment is disclosed. The method is applied to a core network node device, including:
  • the embodiment of the present invention further has a fifteenth aspect, wherein the method further includes:
  • the determining, that the downlink data sent to the user equipment is:
  • the embodiment of the present invention further has a sixteenth possibility, wherein the receiving the tracking area update TAU initiated by the user equipment And sending, to the user equipment, an indication message, where the indication message is used to indicate that the user equipment is in the power saving mode, and the downlink data that is sent to the user equipment includes:
  • TAU accept message When receiving the TAU request initiated by the user equipment, sending a TAU accept message, where the TAU accept message is used to notify the user equipment that when the power save mode is present, there is a message sent to the user equipment. Downstream data, and instructing the user equipment to initiate a service request to establish a data bearer after receiving the TAU accept message.
  • the embodiment of the present invention further has a seventeenth possibility, wherein the method further includes:
  • the gateway After receiving the downlink data notification message sent by the gateway, determining that there is downlink data sent to the user equipment, when determining that the downlink data notification message carries the source address of the downlink data, determining whether the source address of the downlink data exists from the source address of the downlink data The downlink data of the external network server of the user equipment; if yes, the event that the user equipment has downlink data when the power saving mode is saved.
  • the embodiment of the present invention further has an eighteenth possibility, wherein the method further includes:
  • the operation of recording the event that the downlink data arrives when the user equipment saves the power mode is not triggered or The operation of sending an indication message to the user equipment is not triggered.
  • the embodiment of the present invention further has a nineteenth possibility, wherein, when the downlink data notification message carries a source address of the downlink data, the sending the indication to the user equipment
  • the message includes:
  • an indication message that includes a source address of the downlink data, where the indication message is used by the user equipment to determine, according to the source address of the downlink data, whether the downlink data is from an external network of the user equipment.
  • a server determines whether the user equipment initiates a service request to establish a data bearer.
  • the embodiment of the present invention further has a twentieth possibility, wherein, when the core network node device is a source When the mobility management entity MME is configured, the event that the user equipment records the downlink data sent to the user equipment when saving the power mode includes:
  • the source MME records an event that the user equipment has downlink data addressed to the user equipment when saving the power mode
  • the user equipment when receiving the tracking area update TAU request initiated by the user equipment, and determining that there is an event that the user equipment has downlink data sent to the user equipment when saving the power mode, The user equipment sends an indication message, where the indication message is used to indicate that the user equipment is in the power saving mode, and the downlink data that is sent to the user equipment includes:
  • the source MME receives a context request message sent by the destination MME to the source MME when receiving the TAU request initiated by the user equipment, and the context request message is used to request the context information of the user equipment from the source MME;
  • the source MME sends a context response message to the destination MME, where the context response message is used to indicate that the destination MME has downlink data sent to the user equipment when the power saving mode is saved, so that the destination MME receives the downlink data.
  • the TAU accept message is sent to the user equipment, where the TAU accept message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the embodiment of the present invention further has a twenty-first possibility, wherein the indication message specifically includes a user.
  • the indication message specifically includes a user.
  • the embodiment of the present invention further has a twenty-second possibility, wherein, when receiving the tracking area update TAU request initiated by the user equipment, sending an indication to the user equipment
  • the message indicating that the user equipment has downlink data sent to the user equipment when saving the power mode includes:
  • the initial user equipment context establishment request message is sent to establish a data bearer and notify the user equipment that there is downlink data addressed to the user equipment when saving the power mode.
  • the embodiment of the present invention further has a second thirteen possibilities, wherein the sending initiates a user equipment context setup request message to establish a data bearer and notify the user equipment of the user equipment
  • the downlink data sent to the user equipment in the power saving mode includes:
  • the method further includes:
  • the embodiment of the present invention further has a twenty-fourth possibility, wherein the method further includes:
  • the TAU accept message is sent to the user equipment.
  • a method for saving power by a user equipment is disclosed.
  • the method is applied to a user equipment, including:
  • the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode
  • the downlink data is obtained after establishing a data bearer.
  • the embodiment of the present invention further has a twenty-fifth possibility, wherein the indication message sent by the receiving core network node device includes:
  • TAU accept message sent by the core network node device, where the TAU accept message is further used to indicate that the user equipment initiates a service request to establish a data bearer after receiving the TAU accept message;
  • a service request is initiated to the network side to establish a data bearer.
  • the embodiment of the present invention further has a twenty-sixth possibility, wherein when the TAU accept message includes the source address of the downlink data, the service is initiated to the network side.
  • the method further includes:
  • the embodiment of the present invention further has a twenty-seventh possibility, wherein the indication message sent by the receiving core network node device includes:
  • the method further includes:
  • the embodiment of the present invention further has a twenty-eighth possibility, wherein after the data bearer is established Obtaining the downlink data includes:
  • the receiving network After determining to establish a data bearer with the network side, the receiving network sends the downlink data sent after the data bearer is established.
  • the core network node device when the user equipment is in the power saving mode and there is downlink data sent to the user equipment, the core network node device records the event; when the user equipment initiates When the TAU requests, the core network node device indicates, according to the recorded event, that the user equipment has the downlink data sent to the user equipment when the power saving mode is used, so that the user equipment obtains the data bearer after establishing the data bearer. Describe the downlink data.
  • the manner in which the data bearer is established after the user equipment receives the indication message or the manner in which the core network node device actively establishes the data bearer indicates that the user equipment is indicated when the downlink data arrives, thereby reducing the user equipment and the network side.
  • Establishing the frequency of data bearers saves signaling interaction and saves power of user equipment.
  • FIG. 1 is a schematic diagram of a tracking area update process of a prior art user equipment
  • FIG. 2 is a schematic diagram of an embodiment of a core network node device provided by the present invention.
  • FIG. 3 is a schematic diagram of still another embodiment of a core network node device provided by the present invention.
  • FIG. 4 is a schematic diagram of an embodiment of a user equipment provided by the present invention.
  • FIG. 5 is a schematic diagram of still another embodiment of a user equipment provided by the present invention
  • FIG. FIG. 6 is a schematic diagram of a method for saving power of a user equipment according to the present invention
  • FIG. 7 is a schematic diagram of another embodiment of a method for saving power of a user equipment according to the present invention
  • FIG. 9 is a schematic diagram of another embodiment of saving power of a user equipment according to the present invention.
  • FIG. 10 is a schematic diagram of another embodiment of a method for saving power of a user equipment according to the present invention
  • FIG. 11 is a schematic diagram of another embodiment of a method for saving power of a user equipment according to the present invention
  • FIG. 13 is a schematic diagram of still another embodiment of a method for saving power of a user equipment according to the present invention.
  • the present invention is directed to a method and a device for saving power of a user equipment, to solve the problem of signaling waste and power consumption caused by establishing a data bearer each time the user equipment receives downlink data, to save signaling. Interaction and power of the user device.
  • User equipment usually has two states, a connected state and an idle state. When the user equipment is in the connected state, it can perform data transmission with the network side. When there is no data transmission for a long time, the user equipment enters an idle state. In this state, when the network side receives the downlink data of the user, the service request process is triggered. In this case, the MME initiates paging in the tracking area where the user equipment is located, and the user equipment responds to the MME's paging and enters the connection. State receives data. In order to enable the network side to page to the user equipment when the downlink data arrives, the user equipment needs to perform TAU to inform the tracking area where the network side user equipment is located. Among them, TAU includes updates across location areas and periodic location updates.
  • the update across the location area occurs when the user device spans, that is, the user equipment initiates a TAU when it enters the new unregistered area to inform the tracking area where the network side is currently located.
  • the periodic location update means that the user equipment periodically initiates the TAU to enter the connected state and reports the location of the network side user equipment.
  • the user equipment periodically initiates the tracking area update process, enters the connection state, and reports the location of the network side user equipment.
  • FIG. 1 it is a schematic diagram of a tracking area update process of a prior art user equipment.
  • the UE User Equipment
  • the eNodeB is the evolved base station
  • the Target MME Target Mobility Management Entity
  • the Source MME Source Mobility Management Entity
  • S. -GW Serving Gateway
  • P-GW Packet Gateway
  • HSS Home Subscriber Server
  • the message carries a Globally Unique Temporary Identity (GUTI).
  • GUI Globally Unique Temporary Identity
  • the identifier is allocated by the source MME, and includes a globally unique MME identifier (GUMMEI, Globally Unique MME Identifier), which is provided to the user equipment when attaching the attach procedure or the previous TAU process.
  • GUMMEI globally unique MME identifier
  • Step 2 ⁇ The eNodeB forwards the route update of the user equipment to the MME (that is, the Target MME) that can provide the monthly service for the user equipment.
  • Step 3 The Target MME learns the MME (ie, the source MME) where the user equipment context is located according to the GUMMEI information, and sends a context request message to the MME (ie, the source MME), where the message carries the GUTI identifier.
  • Step 4 The source MME determines the context of the user equipment according to the GUTI, and returns the user equipment context information to the Target MME in the context response message.
  • Step 5 Target MME and HSS implement authentication of user equipment and NAS security settings, such as integrity protection and encryption.
  • Step 6 The Target MME sends a Context Ack message to the Source MME, indicating that the message is
  • the Source MME decides whether to delete the user context of the corresponding S-GW.
  • Step 7 If the S-GW does not change, the Target MME initiates a modify bearer request message Modify Bearer Request to the S-GW to provide location information of the current user equipment.
  • Step 8-9 The scenario where the user equipment location changes and needs to be reported to the P-GW.
  • the S-GW sends a Modify Bearer Request message to the P-GW, and the PGW returns a tampering message to the S-GW.
  • Step 10 The S-GW sends a modify bearer response message to the Target MME.
  • Step 11 The target MME updates the location information of the user equipment stored in the HSS device by updating the location request Update Location Request.
  • Step 12 The HSS sends a Cancel Location message Cancel Location/Ack message to the Source MME; the MME removes the user context.
  • Step 13 The HSS sends the user subscription data to the Target MME by updating the location message Update Location Ack.
  • the Target MME sends a tracking area update accept message to the eNodeB to carry the newly allocated GUTI.
  • Step 15 The eNodeB forwards the tracking area update accept message to the user equipment.
  • the inventor has found that in the prior art shown in FIG. 1, in order to ensure that the downlink data arrives, the network side can accurately page the user equipment, and the user equipment is required to monitor the network and maintain the location update. This will result in a significant drain on the user's device power.
  • the user equipment can enable the Power saving mode.
  • the user equipment requests an active time (Active Time) from the network side. Each time the user equipment transitions from the connected state to the idle state, the user equipment starts a timer (the time value of the timer is the active time). When the timer expires, the user equipment enters the power saving mode from the idle state. In the power saving mode, the user equipment no longer listens to the paging message on the network side, that is, the user equipment does not respond to the paging on the network side.
  • the user equipment cannot respond to the paging on the network side after entering the power saving mode, the pushed data packet of the external network server cannot reach the user equipment, so that the service triggered by the external network server cannot be implemented, for example, push service (PUSH) Service, for example, for a wireless meter reading system, the power company's server may need to query the power consumption of the user's meter) will not be implemented.
  • PUSH push service
  • the user equipment needs to actively establish a data bearer after each start of the tracking area update process, and send a data packet to the external network server to query whether there is a service triggered by the external network server.
  • the frequency of the external network server triggering the service is much lower than the frequency at which the user equipment initiates the TAU (for example, the service triggered by the external network server may have a low frequency, for example, once a month; and the user equipment initiates
  • the frequency of the tracking area update is relatively high, for example, once per hour. Therefore, each time the user equipment initiates the TAU process, the data bearer needs to trigger a large amount of signaling, resulting in a large amount of signaling waste and a large loss of user power.
  • FIG. 2 it is a schematic diagram of an embodiment of a core network node device provided by the present invention.
  • the core network node device shown in FIG. 2 is for implementing the method in the embodiment shown in FIG. 6 to FIG. 13 described below.
  • the core network node device can be applied to different communication network systems, including but not limited to S AE (System Architecture Evolved) / LTE (Long Term Evolved) network.
  • UMTS Universal Mobile Telecommunications System
  • CDMA Code Division Mutiple Access
  • the core network node device includes, but is not limited to, a mobility management entity MME, a serving GPRS support node (SGSN), or a mobile switching center MSC (Mobile Switching Center), which is not limited herein.
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • RNC nodeB
  • the core network node device provided by the present invention includes:
  • the recording unit 201 is configured to: when it is determined that the downlink data is sent to the user equipment, and the user equipment is determined to be in the power saving mode, the user equipment is recorded in the power saving mode, and the downlink data sent to the user equipment is event.
  • the receiving unit 202 is configured to receive a tracking area update TAU request initiated by the user equipment.
  • the sending unit 203 is configured to: when receiving the TAU request initiated by the user equipment received by the receiving unit, and determining that the recording unit has an event that the user equipment has downlink data sent to the user equipment when saving the power mode Sending an indication message to the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when the power saving mode is saved, so that the user equipment obtains the data bearer after establishing the data bearer.
  • the downlink data is used to indicate that the user equipment has downlink data sent to the user equipment when the power saving mode is saved, so that the user equipment obtains the data bearer after establishing the data bearer.
  • the receiving unit is further configured to:
  • the core network node device further includes a determining unit, configured to: Determining that there is downlink data sent to the user equipment when receiving the downlink data notification message sent by the gateway received by the receiving unit; or determining that the machine type communication MTC trigger message is received when the external network server address information is received Downstream data sent to the user equipment.
  • a determining unit configured to: Determining that there is downlink data sent to the user equipment when receiving the downlink data notification message sent by the gateway received by the receiving unit; or determining that the machine type communication MTC trigger message is received when the external network server address information is received Downstream data sent to the user equipment.
  • the cellular network is used as an example of the SAE/LTE network, and the core network node device can also determine the downlink data sent to the user equipment by other means.
  • the user equipment may request an active time (Active Time) from the network side (the core network node device), and the user equipment starts a timer every time the user equipment transits from the connected state to the idle state (the timing).
  • the time value of the device is the active time).
  • the user equipment enters the power saving mode from the idle state.
  • the power saving mode the user equipment no longer listens to the paging message on the network side, that is, the user equipment does not respond to the paging on the network side.
  • the determining unit of the network side determines whether the user equipment is in the power saving mode according to the active time requested by the user equipment side and the timer started by the network side (the core network node device).
  • the determining unit 201 determines that there is downlink data destined for the user equipment and determines that the user equipment is in the power saving mode, the user equipment is recorded to be sent to the user equipment when saving the power mode. The event of the downstream data.
  • the sending unit 203 Send an indication message to the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the core network node device determines, according to the event record, whether the user equipment has downlink data sent to the user equipment when saving the power mode, and if yes, The user equipment sends an indication message indicating that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the indication message sent by the sending unit may be a TAU accept message including a user plane indication, a TAU accept message including an activity indication, or a TAU accept message including an MTC trigger indication, which is not limited by the present invention.
  • the indication message is used to notify the user equipment that the downlink data arrives when the power saving mode is saved, so that the user equipment obtains the downlink data after establishing the data bearer.
  • the sending unit 203 is specifically configured to: Receiving a tracking area update TAU accept message when receiving the TAU request initiated by the user equipment, the TAU accept message is used to notify the user equipment that there is downlink data sent to the user equipment when saving the power mode. And instructing the user equipment to initiate a service request to establish a data bearer after receiving the TAU accept message. That is, the indication message sent by the core network node device to the user equipment is further used to indicate that the user equipment initiates the service request to establish a data bearer after receiving the indication message.
  • the user equipment After receiving the indication message, the user equipment initiates a service request (Service Request) to establish a data bearer. After the data bearer is established, the user equipment may actively obtain downlink data from the network side, and may also wait to receive downlink data sent by the network side.
  • Service Request Service Request
  • the core network node device may further include a determining unit, where the determining unit is configured to determine, according to the address information of the downlink data, whether the downlink data is from an external network server of the user equipment, and only downlink data from the external network server.
  • the user equipment is indicated in the indication message, so that the non-server message is caused to cause the user equipment to establish a data bearer. Then the device further includes:
  • a determining unit configured to: when the determining unit determines, according to the downlink data notification message received by the receiving unit, that the downlink data is sent to the user equipment, and the downlink data notification message carries the source address of the downlink data, according to the downlink data
  • the source address determines whether the downlink data from the external network server of the user equipment is; when the downlink data of the network server is recorded, when the user equipment saves the power mode, there is an event that the downlink data arrives.
  • the recording unit is further configured to: when the downlink data of the external network server is prepared, the operation of recording the event that the downlink data arrives when the user equipment saves the power mode is not triggered;
  • the sending unit is further configured to: use the downlink data of the external network server, the operation of sending the indication message to the user equipment is not triggered. Further, the MME sends the source address of the downlink data in the indication message sent to the user equipment, so that the user equipment determines, according to the address information, whether the downlink data is from an external network server of the user equipment, and only the downlink from the external network server. When the data is used, the user equipment initiates a service request to establish a data bearer, thereby preventing the non-server message from causing the user equipment to establish a data bearer.
  • the sending unit is specifically configured to:
  • the determining unit determines, according to the downlink data notification message received by the receiving unit, that the downlink data is sent to the user equipment, and the downlink data notification message carries the source address of the downlink data, sending, by the user equipment, the downlink An indication message of the source address of the data, the indication message is used to indicate that the user equipment determines, according to the source address of the downlink data, whether the downlink data is from an external network server of the user equipment, to determine whether the user equipment is A service request is initiated to establish a data bearer.
  • the recording unit is specifically configured to: when the source MME records that the user equipment saves the power mode, there is a downlink sent to the user equipment Event of data;
  • the sending unit is specifically configured to:
  • the context request message is used to request the user equipment from the source MME Contextual information
  • the source MME And sending, by the source MME, a context response message to the destination MME, where the context response message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode, so that After receiving the context response message, the destination MME sends a TAU accept message to the user equipment, where the TAU accept message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode. .
  • the indication message sent by the sending unit is specifically a TAU accept message including a user plane indication, a TAU accept message including an activity indication, or a TAU accept message including an MTC trigger indication.
  • the core network node device when receiving the user equipment initiated TAU request received by the receiving unit, the core network node device sends an initial user equipment context setup request message to establish a data bearer and notify the user equipment. In the power saving mode, there is a message to the user Downstream data of the device. That is to say, the core network node device notifies the user equipment that the downlink data is sent to the user equipment when the power saving mode is in a hidden indication manner. In this implementation manner, the core network node device actively establishes data bearer.
  • the sending unit is specifically configured to:
  • the initial user equipment context establishment request message is sent to establish a data bearer and notify the user equipment that when the power saving mode is present, there is a message sent to the user equipment. Downstream data.
  • the sending unit is specifically configured to:
  • the device further includes:
  • the response message receiving unit is configured to receive an initial context setup response message sent by the wireless access node device after establishing an RRC bearer with the user equipment.
  • the sending unit is further configured to:
  • the TAU accept message is sent to the user equipment.
  • the core network node device when the user equipment is in the power saving mode and there is downlink data addressed to the user equipment, the core network node device records the event; when the user equipment initiates a TAU request, the core network node device And indicating, by the indication message, that the user equipment is in the power saving mode, the downlink data is sent to the user equipment, so that the user equipment obtains the downlink data after establishing the data bearer. Therefore, the manner in which the data bearer is established after the user equipment receives the indication message or the manner in which the core network node device actively establishes the data bearer indicates that the user equipment is indicated when the downlink data arrives, thereby reducing the user equipment and the network side. Establishing the frequency of data bearers saves signaling interaction and saves power of user equipment. Yet another embodiment
  • FIG. 3 it is a schematic diagram of still another embodiment of a core network node device provided by the present invention.
  • the core network node device shown in Fig. 3 is for implementing the method in the embodiment shown in Figs. 6 to 13 described below.
  • FIG. 3 illustrates a structure of a core network node device according to another embodiment of the present invention, including at least one processor 301 (eg, a CPU), a memory 302, a receiver 303, a transmitter 304, and at least one communication bus 305 for implementing The connection between these devices is communicated.
  • the processor 301 is configured to execute executable modules, such as computer programs, stored in the memory 302.
  • the memory 302 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory, such as at least one disk storage device.
  • RAM Random Access Memory
  • the processor 301 is configured to: when it is determined that there is downlink data addressed to the user equipment, and determine that the user equipment is in a power saving mode, record that the user equipment is sent to the The event of the downlink data of the user equipment.
  • the receiver 303 is configured to: receive a tracking area update TAU request initiated by the user equipment.
  • the transmitter 304 is configured to: when receiving the user equipment initiated TAU request received by the receiver, and determining that the processor has an event that the user equipment has downlink data sent to the user equipment when saving the power mode Sending an indication message to the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when the power saving mode is saved, so that the user equipment obtains the data bearer after establishing the data bearer.
  • the downlink data is configured to: when receiving the user equipment initiated TAU request received by the receiver, and determining that the processor has an event that the user equipment has downlink data sent to the user equipment when saving the power mode Sending an indication message to the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when the power saving mode is saved, so that the user equipment obtains the data bearer after establishing the data bearer.
  • the receiver 303 is further configured to: receive a downlink data notification message sent by the gateway; or receive a machine type communication MTC trigger message that includes external network server address information.
  • the processor 301 is further configured to: when receiving the downlink data notification message sent by the gateway received by the receiver 303, determine that there is downlink data addressed to the user equipment; or, when receiving the receiver 303, receive When the MTC trigger message containing the address information of the external network server determines that there is downlink data addressed to the user equipment.
  • the transmitter 304 is specifically configured to: when receiving the TAU request initiated by the user equipment received by the receiver 303, send a TAU accept message, where the TAU accept message is used to notify the user equipment that when saving the power mode, There is downlink data sent to the user equipment, and the user equipment is instructed to initiate a service request to establish a data bearer after receiving the TAU accept message.
  • the processor 301 is further configured to: after receiving the downlink data notification message sent by the gateway, determining that the downlink data sent to the user equipment, after determining that the downlink data notification message carries the source address of the downlink data, according to Determining, by the source address of the downlink data, whether there is a user equipment from the user equipment The downlink data of the external network server; if yes, the event that the user equipment has downlink data arrival when saving the power mode is recorded.
  • the processor 301 is further configured to: when determining, according to the source address of the downlink data, that there is no downlink data from the external network server of the user equipment, do not trigger execution to record the user equipment in the power saving mode. At the time, there is an operation of an event in which downlink data arrives.
  • the transmitter 304 is further configured to: when the processor 301 determines that there is no downlink data from the external network server of the user equipment according to the source address of the downlink data, does not trigger execution to the user equipment. Send an action indicating the message.
  • the transmitter 304 is further configured to: when the processor 301 determines, according to the downlink data notification message received by the receiver 303, the downlink data sent to the user equipment, and the downlink data notification message carries the source of the downlink data.
  • An external network server of the device to determine whether the user equipment initiates a service request to establish a data bearer.
  • the processor 301 is further configured to: when the core network node device is the source mobility management entity MME, when the source MME records that the user equipment saves the power mode, there is a downlink that is sent to the user equipment. Event of data;
  • the sender 304 is specifically configured to: receive, by the source MME, a context request message sent by the destination MME to the source MME when receiving the TAU request initiated by the user equipment, where the context request message is used to send to the source MME And requesting the context information of the user equipment, and sending, by the source MME, a context response message to the destination MME, where the context response message is used to indicate that the destination MME is sent to the user equipment when saving a power mode Downstream data, so that the destination MME sends a TAU accept message to the user equipment after receiving the context response message, where the TAU accept message is used to indicate that the user equipment is sent to the power saving mode. Downstream data of the user equipment.
  • the indication message sent by the sender 304 is a TAU accept message including a user plane indication, a TAU accept message including an activity indication, or a TAU accept message including an MTC trigger indication.
  • the transmitter 304 is specifically configured to: when receiving the TAU request initiated by the user equipment received by the receiver 303, send an initial user equipment context establishment request message, to establish The data carries and informs the user equipment that when the power saving mode is present, there is downlink data sent to the user equipment.
  • the transmitter 304 is specifically configured to: send an initial user equipment context setup request message to the radio access node device to establish a data bearer, and send a radio resource control RRC bearer setup message to the user equipment via the radio access node device. And is configured to notify the user equipment that when the power saving mode is present, there is downlink data sent to the user equipment;
  • the receiver 303 is further configured to: receive an initial context setup response message sent by the wireless access node device after establishing an RRC bearer with the user equipment.
  • the transmitter 304 is further configured to: after receiving the initial context setup response message sent by the wireless access node device received by the receiver 303, send a TAU accept message to the user equipment.
  • FIG. 4 it is a schematic diagram of an embodiment of a user equipment provided by the present invention.
  • the user equipment shown in FIG. 4 is for implementing the method in the embodiment shown in FIG. 6 to FIG. 13 described below.
  • the user equipment provided by the present invention can be applied to different communication network systems, including but not limited to SAE/LTE networks, UMTS networks, CDMA networks, and the like.
  • the user equipment includes:
  • the requesting unit 401 is configured to initiate a tracking area update TAU request to the core network node device.
  • the user equipment sends a TAU request to the core network node device.
  • the TAU request may be a periodic TAU request.
  • the indication message receiving unit 402 is configured to receive, after receiving the TAU request sent by the requesting unit, and determining that the user equipment has an event of downlink data sent to the user equipment when saving the power mode, An indication message sent by the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the data obtaining unit 403 is configured to determine, according to the indication message that is received by the indication message receiving unit, that the downlink data is sent to the user equipment when the power saving mode is saved, and obtain the downlink data after establishing the data bearer. .
  • the user equipment receives the indication message sent by the core network node device.
  • the indication message is that when the core network node device receives the TAU request sent by the user equipment, and determines that the user equipment is in the power saving mode, when there is downlink data sent to the user equipment, Sent by the user equipment. It should be noted that, when the core network node device determines that there is downlink data addressed to the user equipment, and determines that the user equipment is in a power saving mode, the user equipment is recorded to be sent to the The event of the downlink data of the user equipment.
  • the core network node device When receiving the TAU request sent by the user equipment, the core network node device determines, according to the record, whether the user equipment has downlink data addressed to the user equipment when saving the power mode, and if so, to the user equipment. And sending the indication message, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the indication message received by the indication message receiving unit of the user equipment may be a TAU accept message including a user plane indication, a TAU accept message including an activity indication, or a TAU accept message including an MTC trigger indication, and the type of the indication message of the present invention Not limited.
  • the indication message receiving unit is specifically configured to: receive a TAU accept message sent by the core network node device, where the TAU accept message is further used to indicate that the user equipment receives the TAU accepting After the message, the service request is initiated to establish a data bearer;
  • the device further includes: a service requesting unit, configured to initiate a service request to the network side to establish a data bearer after receiving the TAU accept message sent by the core network node device received by the indication message receiving unit.
  • a service requesting unit configured to initiate a service request to the network side to establish a data bearer after receiving the TAU accept message sent by the core network node device received by the indication message receiving unit.
  • the core network node device when the network side receives the TAU request of the user equipment, and determines that the user equipment has downlink data sent to the user equipment when saving the power mode, the core network node device Proactively initiate the establishment of a data bearer.
  • the user equipment, the indication message receiving unit is specifically configured to: receive a data bearer setup message sent by the core network node device by the wireless access node device;
  • the user equipment further includes:
  • the RRC bearer establishing unit is configured to establish an RRC bearer with the radio access node device after receiving the data bearer setup message received by the indication message receiving unit.
  • the user equipment further includes:
  • a determining unit configured to determine, according to a source address of the downlink data, whether the downlink data is from an external network server of the user equipment, when a TAU accept message received by the indication message receiving unit includes a source address of the downlink data ;
  • the service requesting unit is specifically configured to: when the determining unit determines that the downlink data is from an external network server of the user equipment, initiate a service request to the network side to establish a data bearer.
  • the data obtaining unit is specifically configured to: after determining to establish a data bearer with the network side, send a data packet to the network side to obtain the downlink data; or, after determining to establish a data bearer with the network side, the receiving network The downstream data sent by the side after the data bearer is established.
  • the core network node device when the user equipment is in the power saving mode and there is downlink data addressed to the user equipment, the core network node device records the event; when the user equipment initiates a TAU request, the core network node is based on The recorded event indicates, by the indication message, that the user equipment has downlink data sent to the user equipment when saving the power mode, so that the user equipment obtains the downlink data after establishing the data bearer. Therefore, the manner in which the data bearer is established after the user equipment receives the indication message or the manner in which the core network node device actively establishes the data bearer indicates that the user equipment is indicated when the downlink data arrives, thereby reducing the user equipment and the network side. Establishing the frequency of data bearers saves signaling interaction and saves power of user equipment.
  • the user equipment only receives the indication message sent by the core network node device, and determines, according to the indication message, that the user equipment sends the power to the user equipment when saving the power mode.
  • a data request is initiated to the network side to establish a data bearer.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and user equipment, which is different from the manner in which the user equipment establishes a data bearer every time the user equipment initiates the TAU request. Electricity.
  • the user equipment does not need to establish a data bearer after initiating the TAU request, but is performed by the network.
  • the side for example, the core network node device
  • the bearer is used by the user equipment to acquire the downlink data. Therefore, the user equipment does not need to establish a data bearer every time the TAU request is initiated.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and power consumption of the user equipment.
  • FIG. 5 it is a schematic diagram of still another embodiment of a user equipment provided by the present invention.
  • the user equipment shown in FIG. 5 is for implementing the method in the embodiments shown in FIG. 6 to FIG. 13 described below.
  • FIG. 5 illustrates a structure of a user equipment according to another embodiment of the present invention, including at least one processor 501 (eg, a CPU), a memory 502, a receiver 503, a transmitter 504, and at least one communication bus 505 for implementing the devices. Communication between the connections.
  • the processor 501 is for executing executable modules, such as computer programs, stored in the memory 502.
  • the memory 502 may include a high speed random access memory (RAM: Random Access Memory), and may also include a non-volatile memory such as at least one disk memory.
  • RAM Random Access Memory
  • the transmitter 504 is configured to: initiate a tracking area update TAU request to the core network node device; the receiver 503 is configured to: receive, after receiving the TAU request, the core network node device determines that the user equipment is saved An indication message sent to the user equipment when there is an event of the downlink data sent to the user equipment, where the indication message is used to indicate that the user equipment is sent to the user equipment when saving the power mode. Downstream data;
  • the processor 501 is configured to: when determining, according to the indication message, that there is downlink data sent to the user equipment when saving a power mode, obtaining the downlink data after establishing a data bearer.
  • the receiver 503 is further configured to: receive a TAU accept message sent by the core network node device, where the TAU accept message is further used to indicate that the user equipment initiates a service request to establish data after receiving the TAU accept message.
  • the processor 501 is further configured to: after the receiver 503 receives the TAU accept message sent by the core network node device, initiate a service request to the network side to establish a data bearer.
  • the processor 501 is further configured to: when the TAU accept message received by the receiver 503 includes a source address of the downlink data, determine the downlink according to a source address of the downlink data Whether the data is from an external network server of the user equipment; if so, a service request is initiated to the network side to establish a data bearer.
  • the receiver 503 is further configured to: receive a data bearer setup message sent by the core network node device by using the wireless access node device;
  • the processor 501 is further configured to: after the receiver 503 receives the data bearer setup message, establish an RRC bearer with the wireless access node device.
  • the processor 501 is further configured to: after determining to establish a data bearer with the network side, send a data packet to the network side to obtain the downlink data; or, after determining to establish a data bearer with the network side, the receiving network side The downlink data sent after the data bearer is established.
  • FIG. 6 is a schematic diagram of an embodiment of a method for saving power of a user equipment according to the present invention.
  • the method shown is applied to the core network node device side.
  • the method provided by the present invention can be applied to different communication network systems, including but not limited to S AE (System Architecture Evolved, Network Architecture Evolution Network) / LTE (Long Term Evolved) network, UMTS (Universal Mobile Telecommunications System, Universal Mobile Telecommunications System), CDMA (Code Division Mutiple Access), etc.
  • the core network node device includes, but is not limited to, a mobility management entity MME, a serving GPRS support node (SGSN), or a mobile switching center MSC (Mobile Switching Center), which is not limited herein.
  • MME mobility management entity
  • SGSN serving GPRS support node
  • MSC Mobile Switching Center
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • RNC nodeB
  • the method can include, for example:
  • the determining, by the core network node device, that the downlink data sent to the user equipment is: when receiving the downlink data notification message sent by the gateway, determining that the downlink data is sent to the user equipment; Or, when receiving an MTC containing the address information of the external network server (Machine Type
  • the user equipment may request an active time (Active Time) from the network side (the core network node device), and each time the user equipment moves from the connected state to the idle state, the user equipment starts a timer (the timer The time value is active time).
  • the timer expires, the user equipment enters the power save mode from the idle state.
  • the network side determines whether the user equipment is in the power saving mode according to the active time requested by the user equipment side and the timer started by the network side (the core network node device).
  • the core network node device determines that there is downlink data destined for the user equipment and determines that the user equipment is in the power saving mode, recording an event that the user equipment has downlink data sent to the user equipment when saving the power mode, In order to send an indication message to the user equipment when receiving the TAU request of the user equipment.
  • S602. When receiving the tracking area update TAU request initiated by the user equipment, send an indication message to the user equipment, where the indication message is used to indicate that the user equipment sends to the user when saving a power mode. Downlink data of the device, so that the user equipment obtains the downlink data after establishing a data bearer.
  • the device When the core network node device receives the TAU request initiated by the user equipment, the device sends an indication message to the user equipment, where the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode. . Specifically, when receiving the TAU request sent by the user equipment, the core network node device determines, according to the event record, whether the user equipment has downlink data sent to the user equipment when saving the power mode, and if yes, The user equipment sends an indication message indicating that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the indication message may be a TAU accept message including a user plane indication, a TAU accept message including an activity indication, or a TAU accept message including an MTC trigger indication, which is not limited by the disclosure.
  • the indication message is used to notify the user that the device has a downlink number when saving the power mode. According to the arrival, the user equipment obtains the downlink data after establishing the data bearer.
  • the present invention has different implementation manners according to different data bearer modes established by the user equipment and the core network node device.
  • the core network node device when receiving the tracking area update TAU request initiated by the user equipment, the core network node device sends a TAU accept message to notify the user equipment that the user equipment is sent to the power saving mode.
  • the user equipment After receiving the indication message, the user equipment initiates a service request (Service Request) to establish a data bearer.
  • Service Request Service Request
  • the user equipment can actively obtain downlink data from the network side and wait for the downlink data sent by the network side.
  • the core network node device when receiving the tracking area update TAU request initiated by the user equipment, the core network node device sends an initial user equipment context establishment request message to establish a data bearer, and notifies the user equipment of the user.
  • the core network node device saves the power mode, there is downlink data sent to the user equipment. That is to say, the core network node device notifies the user equipment that there is downlink data sent to the user equipment when saving the power mode by means of implicit indication.
  • the core network node device actively establishes data bearers.
  • the core network node device sends an initial user equipment context establishment request message to the wireless access node device to establish a data bearer, and the RRC bearer setup message is sent to the user equipment by using the radio access node device to notify the user.
  • the core network node device is further configured to receive an initial context setup response message sent by the wireless access node device after establishing an RRC bearer with the user equipment. After receiving the initial context setup response message sent by the wireless access node device, the core network node device sends a tracking area update accept message to the user equipment.
  • the core network node device when the user equipment is in the power saving mode and there is downlink data addressed to the user equipment, the core network node device records the event; when the user equipment initiates a TAU request, the core network node device And indicating, by the indication message, that the user equipment is in the power saving mode, the downlink data is sent to the user equipment, so that the user equipment obtains the downlink data after establishing the data bearer.
  • FIG. 7 is a schematic diagram of still another embodiment of a method for saving power of a user equipment according to the present invention.
  • the method shown in Fig. 7 is applied to the user equipment side.
  • the method provided by the present invention can be applied to different communication network systems, including but not limited to SAE/LTE networks, UMTS networks, CDMA networks, and the like.
  • the core network node device of the peer end of the user equipment includes, but is not limited to, an MME, an SGSN, or a mobile switching center MSC, which is not limited herein.
  • the core network node device may be an MME, and the wireless access node device may be an eNB; for a UMTS network, the core network node device may be an SGSN or an MSC, and the wireless access node device It can be RNC or nodeB.
  • the SAE/LTE network as a cellular network.
  • Other cellular networks can be implemented by referring to the following embodiments.
  • the user equipment sends a TAU request to the core network node device.
  • the TAU request may be a periodic TAU request.
  • the indication message is used to indicate that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the user equipment receives the indication message sent by the core network node device.
  • the indication message is that when the core network node device receives the TAU request sent by the user equipment, and determines that the user equipment is in the power saving mode, when there is downlink data sent to the user equipment, Sent by the user equipment. It should be noted that, when the core network node device determines that there is downlink data destined for the user equipment, and determines that the user equipment is in the power saving mode, the user equipment is recorded when the power saving mode is stored. The event of the downlink data of the user equipment.
  • the core network node device When receiving the TAU request sent by the user equipment, the core network node device determines, according to the record, whether the user equipment has downlink data addressed to the user equipment when saving the power mode, and if so, to the user equipment. Sending an indication message indicating that the user equipment has a downlink to the user equipment when saving the power mode Data.
  • the indication message received by the user equipment may be a TAU accept message including a user plane indication, a TAU accept message including an activity indication, or a TAU accept message including an MTC trigger indication.
  • the present invention does not limit the type of the indication message.
  • the user equipment when the user equipment receives the indication message sent by the core network node device, the user equipment receives the tracking area update accept message sent by the core network node device, where the message is further used to indicate that the user equipment receives the After the message, the service request is initiated to establish a data bearer.
  • the method further includes: initiating a service request to the network side to establish a data bearer.
  • the core network node device instructs the user equipment to establish a data bearer in the tracking area update accept message.
  • the user equipment After receiving the indication message, the user equipment initiates a data request to the network side to establish a data bearer. After the data bearer is established, the user equipment can obtain the downlink data.
  • the network side receives the TAU request of the user equipment, and determines that the user equipment has downlink data sent to the user equipment when saving the power mode, and then actively initiates the data bearer. set up. That is, the user equipment receiving the indication message sent by the core network node device includes: the user equipment receiving the data bearer setup message sent by the core network node device by using the wireless access node device, where the method further includes: The device establishes an RRC bearer.
  • the core network node device sends an initial user equipment context setup request message to the radio access node device to establish a data bearer, and the radio resource control RRC bearer setup message sent to the user equipment by the radio access node device,
  • the user equipment is notified that there is downlink data sent to the user equipment in the power saving mode, and the user equipment establishes an RRC bearer with the wireless access node device.
  • the radio access node device sends an initial context setup response message to the core network node device.
  • the core network node device After receiving the initial context setup response message, the core network node device sends a TAU accept message to the user equipment.
  • the downlink data is obtained after establishing a data bearer.
  • the user equipment After the data bearer is established on the network side, the user equipment obtains the downlink data, including: sending a data packet to the network side to obtain the downlink data; or receiving downlink data sent by the network side after establishing the data bearer.
  • the core network node device when the user equipment is in the power saving mode and there is downlink data addressed to the user equipment, the core network node device records the event; when the user equipment initiates TAU When the request is made, the core network node indicates, according to the recorded event, that the user equipment has downlink data sent to the user equipment in the power saving mode, so that the user equipment obtains the downlink data after establishing the data bearer. . Therefore, the manner in which the data bearer is established after the user equipment receives the indication message or the manner in which the core network node device actively establishes the data bearer indicates that the user equipment is indicated when the downlink data arrives, thereby reducing the user equipment and the network side. Establishing the frequency of data bearers saves signaling interaction and saves power of user equipment.
  • the user equipment only receives the indication message sent by the core network node device, and determines, according to the indication message, that the user equipment is sent to the user equipment when saving the power mode.
  • a data request is initiated to the network side to establish a data bearer.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and user equipment, which is different from the manner in which the user equipment establishes a data bearer every time the user equipment initiates the TAU request. Electricity.
  • the user equipment does not need to establish a data bearer after initiating the TAU request, but is performed by the network.
  • the side for example, the core network node device
  • the user equipment when determining that the user equipment has downlink data addressed to the user equipment when saving the power mode, actively establishes a data bearer with the user equipment, so that the user equipment acquires the downlink data. Therefore, the user equipment does not need to establish a data bearer every time the TAU request is initiated.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and power consumption of the user equipment. Still another embodiment
  • the core network node device is an MME
  • the wireless access node is an eNB
  • the terminal is a UE.
  • FIG. 8 is a schematic diagram of still another embodiment of saving power of a user equipment provided by the present invention.
  • the serving gateway S-GW receives the downlink data, and sends a downlink data notification message Downlink Data Notification to the MME.
  • the MME receives the downlink data notification message Downlink Data Notification sent by the serving gateway S-GW.
  • the MME records that the user equipment has downlink data sent to the user equipment when saving the power mode. event.
  • the MME may cache the downlink data, or may not cache the downlink data.
  • the MME sends a downlink data notification acknowledgement message Downlink Data Notification Ack to the S-GW, where the message carries the reject reason value.
  • S804 The user equipment initiates a periodic tracking area update request TAU request to the MME.
  • S805 The MME sends a Modify Bearer Request message to the S-GW to provide location information of the current user equipment.
  • step S806, S807 is performed; otherwise, S808 is performed.
  • the S-GW sends a Modify Bearer Request message to the P-GW.
  • the P-GW sends a Modify Bearer Response message to the S-GW.
  • S808 The S-GW sends a Modify Bearer Response message to the MME.
  • the MME sends a tracking area update accept message TAU accept (with a user plane indication message) to the user equipment, and indicates in the indication message that the user equipment has downlink data sent to the user equipment when saving power, and indicates the user.
  • the device needs to establish a data bearer.
  • the user equipment initiates a service request according to the indication message to establish a data bearer.
  • the user equipment may send a data packet to the external network server to query whether the service triggered by the external network server obtains the downlink service data. You can also wait for an external network server to send data to it.
  • the user equipment may also obtain the downlink data from the MME.
  • the MME records the event when determining that the user equipment is in the power saving mode and has downlink data addressed to the user equipment; when the user equipment initiates the TAU request, the MME passes the recorded event.
  • the indication message indicates that the user equipment has downlink data addressed to the user equipment when saving the power mode, and notifies the user equipment to establish a data bearer.
  • the user equipment only receives the indication message sent by the MME, and determines, according to the indication message, that the user equipment sends the service request to the network side to establish the downlink data sent to the user equipment when saving the power mode.
  • Data bearer Different from the prior art, the user equipment establishes the number of TAU requests each time. According to the manner of the bearer, the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and power consumption of the user equipment.
  • FIG. 9 is a schematic diagram of another embodiment of saving power of a user equipment provided by the present invention.
  • the destination mobility management entity Target MME requests the context to update the TAU request initiated by the user equipment.
  • the message is sent to the source mobility management entity Source MME for the context information of the user equipment.
  • the source mobility management entity Source MME indicates in the context response message that the user equipment has a downlink to the user equipment when saving the power mode.
  • the destination mobility management entity Target MME indicates in the tracking area update accept message that the user equipment has downlink data sent to the user equipment in the power saving mode to indicate that the user equipment establishes a data bearer.
  • the serving gateway S-GW receives the downlink data, and sends a downlink data notification message Downlink Data Notification to the source MME.
  • the source MME receives the downlink data notification message Downlink Data Notification sent by the serving gateway S-GW, and when determining that the user equipment is in the power saving mode, the source MME records that the user equipment is sent to the user equipment when saving the power mode. The event of the downlink data.
  • the source MME may cache the downlink data, or may not cache the downlink data.
  • the source MME sends a downlink data notification acknowledgement message to the S-GW, where the message carries the reject cause value.
  • the user equipment initiates a periodic tracking area update request.
  • the MME When the user equipment initiates a TAU Request, the MME has been changed from the Source MME to the Target MME. At this time, the request sent by the user equipment carries a temporary ID, which includes the Source MME ID.
  • the target MME requests the context information of the user equipment from the source MME by using a context request message context Request.
  • the Target MME determines that the MME changes through the TAU request sent by the user equipment, it sends a context request message to the Source MME to request context information of the user equipment.
  • the Target MME determines, by using the temporary ID (including the Source MME ID) carried in the TAU request sent by the user equipment, that the MME changes, determines the Source MME corresponding to the user equipment according to the temporary ID, and initiates a context request to the Source MME.
  • the message requests context information of the user equipment from the Source MME.
  • the source MME sends a context response message to the target MME, where the context response message carries a user plane indication, indicating that the user equipment needs to establish a data bearer, that is, when the power saving mode is used, there is downlink data sent to the user equipment.
  • S907 The Target MME sends a tampering request message to the S-GW. Modify Bearer
  • step S908 S909 is performed; otherwise, S910 is performed.
  • the S-GW sends a Modify Bearer Request message to the P-GW.
  • the P-GW sends a Modify Bearer Response message to the S-GW.
  • the S-GW sends a Modify Bearer Response message to the MME.
  • the Target MME sends a tracking area update accept message TAU accept to the user equipment, and indicates in the indication message that the user equipment has downlink data sent to the user equipment when saving power, and indicates that the user equipment needs to establish a data bearer.
  • the user equipment initiates a service request according to the indication message to establish a data bearer.
  • the user equipment may send a data packet to the external network server to query whether the service triggered by the external network server obtains the downlink service data. You can also wait for an external network server to send data to it.
  • the user equipment may also obtain the downlink data from the source MME.
  • the source MME records the event when determining that the user equipment is in the power saving mode and has downlink data addressed to the user equipment; when the user equipment initiates the TAU request, the Source MME is based on the record.
  • the event indicates, by the context response message, that the user equipment has downlink data sent to the user equipment when saving the power mode, and notifies the user equipment to establish data. Hosted.
  • the user equipment only receives the indication message sent by the MME, and determines, according to the indication message, that the user equipment sends downlink service data to the user equipment when saving the power mode, and then initiates a service request to the network side to establish Data bearer.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and user equipment, which is different from the manner in which the user equipment establishes a data bearer every time the user equipment initiates the TAU request. Electricity. Still another embodiment
  • FIG. 10 is a schematic diagram of still another embodiment of a method for saving power of a user equipment according to the present invention.
  • the embodiment of the present invention is different from the first two embodiments in that the serving gateway carries the source address of the downlink data in the downlink data notification message sent to the MME, and the MME determines, according to the address information, whether the downlink data is from the outside of the user equipment.
  • the network server only the downlink data from the external network server indicates the user equipment in the indication message, thereby preventing the non-server message from causing the user equipment to establish a data bearer.
  • the serving gateway S-GW receives the downlink data, and sends a downlink data notification message Downlink Data Notification to the MME.
  • the downlink data notification message carries a source IP address of the downlink data.
  • the MME receives the downlink data notification message Downlink Data Notification sent by the serving gateway S-GW.
  • the MME determines, according to the source IP address of the downlink data, whether the downlink data is from the user equipment. External web server. If yes, step S1003 is performed to record an event that the user equipment has downlink data when the power saving mode is saved, and send an indication message to the user equipment when receiving the tracking area update TAU request initiated by the user equipment. If not, the step S1003 is not triggered, that is, the operation of recording the event that the user equipment has the arrival of the downlink data when saving the power mode is not triggered. Or not triggering an operation of sending an indication message to the user equipment.
  • S1003 When the source IP address of the MME data determines that the downlink data is from an external network server of the user equipment, record an event that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • the MME may cache the downlink data, or may not cache the downlink data.
  • the MME sends a downlink data notification confirmation message Downlink Data Notification Ack For the S-GW, the message carries the reject reason value.
  • S1005 The user equipment initiates a periodic tracking area update request TAU request to the MME.
  • S1006 The MME sends a Modify Bearer Request message to the S-GW to provide location information of the current user equipment.
  • step S1007, S1008 is performed; otherwise, S1009 is performed.
  • the S-GW sends a Modify Bearer Request message to the P-GW.
  • the P-GW sends a Modify Bearer Response message to the S-GW.
  • S1009 The S-GW sends a Modify Bearer Response message to the MME.
  • S1010 The MME sends a tracking area update accept message TAU accept to the user equipment, and indicates in the indication message that the user equipment has downlink data sent to the user equipment when saving power, and indicates that the user equipment needs to establish a data bearer.
  • S1011 The user equipment initiates a service request according to the indication message to establish a data bearer.
  • the user equipment may send a data packet to the external network server to query whether the service triggered by the external network server obtains the downlink service data. You can also wait for an external network server to send data to it.
  • the user equipment may also obtain the downlink data from the MME.
  • the MME determines, according to the source address of the downlink data, whether the downlink data is from an external network of the user equipment. a server; if yes, recording an event that the user equipment has a downlink data arrival when saving the power mode, and sending an indication message to the user equipment when receiving the tracking area update TAU request initiated by the user equipment; if not, The operation of recording the event that the user equipment has the arrival of the downlink data when saving the power mode or not performing the operation of sending the indication message to the user equipment is not triggered. Therefore, the user equipment is instructed to establish a data bearer only when the downlink data is from the external network server of the user equipment, so that the non-server-informed message causes the user equipment to establish a data bearer.
  • FIG. 11 it is a schematic diagram of another embodiment of a method for saving power of a user equipment provided by the present invention.
  • the embodiment of the present invention is different from the previous embodiments in that the serving gateway carries the source address of the downlink data in the downlink data notification message sent to the MME, and the MME includes the downlink data in the indication message sent to the user equipment.
  • the source address so that the user equipment determines, according to the address information, whether the downlink data is from an external network server of the user equipment, and only when the downlink data from the external network server is used, the user equipment initiates a service request to establish a data bearer, thereby avoiding non-negative
  • the packet of the server causes the user equipment to establish a data bearer.
  • the serving gateway S-GW receives the downlink data, and sends a downlink data notification message Downlink Data Notification to the MME.
  • the downlink data notification message carries a source IP address of the downlink data.
  • the MME receives a downlink data notification message sent by the serving gateway S-GW.
  • Downlink Data
  • the MME may cache the downlink data, or may not cache the downlink data.
  • the MME sends a downlink data notification acknowledgement message Downlink Data Notification Ack to the S-GW, where the message carries the reject cause value.
  • the user equipment initiates a periodic tracking area update request to the MME.
  • the MME sends a Modify Bearer Request message to the S-GW to provide location information of the current user equipment.
  • S1106 When the location of the user equipment changes, the S-GW sends a Modify Bearer Request message to the P-GW.
  • the P-GW sends a Modify Bearer Response message to the S-GW.
  • the S-GW sends a Modify Bearer Response message to the MME.
  • the MME sends a tracking area update accept message TAU accept to the user equipment, where the message includes the source address of the downlink data, and indicates in the indication message that the user equipment sends the power to the user equipment when saving power. Downstream data.
  • the user equipment is instructed to establish a data bearer in the message.
  • S1110 The user equipment determines, according to the source address of the downlink data, whether the downlink data is from an external network server of the user equipment, and if yes, executes S1111; if not, does not execute Smi.
  • the user equipment initiates a service request according to the indication message to establish a data bearer.
  • the user equipment may send a data packet to the external network server to query whether the service triggered by the external network server obtains the downlink service data. You can also wait for an external network server to send data to it.
  • the user equipment may also obtain the downlink data from the MME.
  • the MME carries the source address of the downlink data in the indication message sent to the user equipment, and the user equipment The source address of the downlink data determines whether the downlink data is from an external network server of the user equipment; if yes, the user equipment initiates a service request to establish a data bearer. If no, the data bearer is not established, so that the packets from the server are prevented from causing the user equipment to establish a data bearer.
  • FIG. 12 it is a schematic diagram of still another embodiment of a method for saving power of a user equipment provided by the present invention.
  • the IWF (Inter Working Facility) described in FIG. 12 is an interworking device, the HSS is a home subscription server, and the server is an external network server.
  • the external network server sends an MTC (Machine Type Communication) message to the IWF entity, where the address of the external network server and the external identifier of the user equipment are indicated.
  • MTC Machine Type Communication
  • S1202 The IWF queries the internal identifier of the user equipment and the current MME by using the HSS. SI 203, IWF sends MTC trigger message MTC Trigger to MME, indicating the address of the external network server.
  • the MME receives an MTC trigger message that includes the address information of the external network server.
  • the MME records an event that the user equipment sends downlink data to the user equipment when saving the power mode.
  • S1205 The user equipment initiates a periodic tracking area update request TAU request to the MME.
  • TAU request The process of the interaction between the MME and the gateway after receiving the TAU request sent by the UE is omitted.
  • the MME sends a tracking area update accept message TAU accept to the user equipment, and indicates in the indication message (MTC trigger) that the user equipment has downlink data sent to the user equipment when saving power, and indicates that the user equipment needs to be established.
  • Data bearer The message also carries external network server address information.
  • the user equipment initiates a service request according to the indication message to establish a data bearer.
  • the user equipment may send a data packet to the external network server according to the address information of the external network server, and query whether the service triggered by the external network server obtains the downlink service data. You can also wait for an external network server to send data to it.
  • the MME when the MME receives the MTC trigger message including the external network server address information, it determines that there is downlink data addressed to the user equipment, and records the event when determining that the user equipment is in the power saving mode; When the user equipment initiates the TAU request, the MME indicates, according to the recorded event, that the user equipment has downlink data sent to the user equipment when saving the power mode, and notifies the user equipment to establish a data bearer. In this way, the user equipment only receives the indication message sent by the MME, and determines, according to the indication message, that the user equipment sends downlink service data to the user equipment when saving the power mode, and then initiates a service request to the network side to establish Data bearer.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearers between the user equipment and the network side, and saves signaling interaction and user equipment, which is different from the manner in which the user equipment establishes a data bearer every time the TAU request is initiated. Electricity. Yet another embodiment
  • FIG. 13 is a schematic diagram of still another embodiment of a method for saving power of a user equipment according to the present invention.
  • the data bearer is established by the core network node device MME, instead of instructing the user equipment to establish a data bearer.
  • the serving gateway S-GW receives the downlink data, and sends a downlink data notification message Downlink Data Notification to the MME.
  • the MME receives the downlink data notification message Downlink Data Notification sent by the serving gateway S-GW.
  • the MME records that the user equipment has downlink data sent to the user equipment when saving the power mode. event.
  • the MME may cache the downlink data, or may not cache the downlink data.
  • S1303 The MME sends a downlink data notification acknowledgement message Downlink Data Notification Ack to the S-GW, where the message carries a reject cause value.
  • the user equipment initiates a periodic tracking area update request TAU request to the MME.
  • the MME initiates a data plane bearer setup process, that is, sends an initial user equipment context setup request message to the radio access node device eNB, and carries the bearer information in the initialized user equipment context setup request message.
  • the RRC bearer setup message sent by the eNB to the user equipment is used to notify the user equipment that the user equipment has downlink data sent to the user equipment when saving the power mode.
  • S1307 The user equipment sends an RRC bearer response message to the eNB.
  • the eNB sends an initial context setup response message to the MME after establishing an RRC bearer with the user equipment.
  • the MME sends a Modify Bearer Request message to the S-GW to provide location information of the current user equipment.
  • step S1310, S 1311 is performed; otherwise, S1312 is performed.
  • S 1310 When the location of the user equipment changes, the S-GW sends a Modify Bearer Request message to the P-GW.
  • the P-GW sends a Modify Bearer Response message to the S-GW.
  • the S-GW sends a Modify Bearer Response message to the MME.
  • the MME sends a tracking area update accept message TAU accept to the user equipment.
  • the user equipment can wait for an external network server to send data to it to obtain downlink data. Further, if the MME buffers the downlink data, the downlink data may also be sent to the user equipment after the bearer is established.
  • the MME may also determine, according to the source address of the downlink data, whether the downlink data is from an external network server of the user equipment; If yes, the data bearer process is actively established; if not, the TAU accept message is sent only when the TAU request is received, and the data plane bearer with the user equipment is not established.
  • the MME determines that the user equipment is in the power saving mode and has The event is recorded when the user equipment initiates the TAU request, and the MME initiates the data bearer according to the recorded event, and indicates, by means of the invisible indication message, the user equipment when saving the power mode.
  • the MME actively establishes a data bearer with the user equipment only when determining that the user equipment has downlink data to the user equipment in the power saving mode, which is different from the prior art in which the user equipment initiates a TAU request.
  • the method of the data bearer is established.
  • the method provided by the embodiment of the present invention greatly reduces the frequency of establishing data bearer between the user equipment and the network side, and saves signaling interaction and power consumption of the user equipment.
  • the storage medium may be, for example, a ROM/RAM, a magnetic disk, an optical disk, or the like.

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Abstract

一种用户设备节约电量的方法和设备,所述方法包括:当确定有发往用户设备的下行数据且确定所述用户设备处于节约电量模式时,记录所述用户设备在节约电量模式时有发往所述用户设备的下行数据的事件;当接收到所述用户设备发起的跟踪区更新TAU请求时,向所述用户设备发送指示消息指示所述用户设备在节约电量模式时有发往所述用户设备的下行数据,以便于所述用户设备在建立数据承载后获得所述下行数据。本发明提供的方法降低了用户设备与网络侧建立数据承载的频率,节省了信令交互且节约了用户设备的电量。

Description

一种用户设备节约电量的方法和设备
技术领域 本发明涉及通信领域, 尤其涉及一种用户设备节约电量的方法和设备。 背景技术
在通信技术领域, 用户设备 (UE, User Equipment ) 通常具有连接态 ( Connected )和空闲态(Idle ) 两种状态。 在用户设备处于连接态时, 其可以 与网络侧进行数据传输。 当长时间没有数据传输时, 用户设备会进入空闲态。 在这种状态下, 当网络侧收到用户下行数据时,则会触发服务请求流程,这时, 移动性管理实体( MME, Mobility Management Entity )会在用户设备所在的跟 踪区域发起寻呼, 用户设备会响应 MME的寻呼并进入连接态接收数据。 为了 让网络侧在下行数据到来时能够寻呼到用户设备,用户设备需要进行跟踪区更 新 (TAU, Tracking Area Update ) 以告知网络侧用户设备所在的跟踪区域。
当用户设备处于电量节约模式下时, 用户设备不会响应网络侧的寻呼, 因 此, 来自外部网络服务器的下行数据将无法达到用户设备,从而使来自外部网 络服务器的业务将无法实施。 而为了使得来自外部网络服务器的业务能够实 施, 用户设备需要在每次发起 TAU后主动建立数据承载, 并向外部网络服务 器发送数据报文, 用以查询是否有外部网络服务器触发的业务请求或数据。
然而,在某些业务场景下, 外部网络服务器触发业务的频率远远低于用户 设备发起 TAU的频率,因此用户设备每次发起 TAU流程均建立数据承载需要 触发大量的信令, 从而导致大量的信令浪费和用户电量的大量损耗。
发明内容
有鉴于此,本发明提供一种用户设备节约电量的方法和设备, 以解决信令 浪费和电量损耗的问题。
为此, 本发明实施例釆用如下技术方案:
根据本发明实施例的第一方面,公开了一种核心网节点设备, 所述设备包 括: 记录单元,用于当确定存在发往用户设备的下行数据且确定所述用户设备 处于节约电量模式时,记录所述用户设备在节约电量模式时,存在发往所述用 户设备的下行数据的事件;
接收单元, 用于接收所述用户设备发起的跟踪区更新 TAU请求; 发送单元, 用于当接收到所述接收单元接收的所述用户设备发起的 TAU 请求且确定所述记录单元存在所述用户设备在节约电量模式时有发往用户设 备的下行数据的事件时, 向所述用户设备发送指示消息, 所述指示消息用于指 示所述用户设备在节约电量模式时,存在发往所述用户设备的下行数据, 以便 于所述用户设备在建立数据承载后获得所述下行数据。
结合本发明实施例的第一方面, 本发明实施例还具有第一种可能, 其中, 所述接收单元还用于:
接收网关发送的下行数据通知消息; 或者,接收包含外部网络服务器地址 信息的机器类型通信 MTC触发消息;
则所述设备还包括确定单元, 用于:
当接收到所述接收单元接收的网关发送的下行数据通知消息时,确定存在 发往用户设备的下行数据; 或者, 当接收到所述接收单元接收的包含外部网络 服务器地址信息的 MTC触发消息时, 确定存在发往用户设备的下行数据。
结合本发明实施例的第一方面以及本发明实施例的第一种可能,本发明实 施例还具有第二种可能, 其中, 所述发送单元具体用于:
当接收到所述接收单元接收的用户设备发起的 TAU请求时,发送 TAU接 受消息, 所述 TAU接受消息用于通知用户设备在节约电量模式时, 存在发往 所述用户设备的下行数据, 并指示所述用户设备在接收到所述 TAU接受消息 后, 发起服务请求建立数据承载。
结合本发明实施例的第一种可能,本发明实施例还具有第三种可能,其中, 所述设备还包括:
判断单元,用于当所述确定单元根据所述接收单元接收的下行数据通知消 息确定有发往用户设备的下行数据且所述下行数据通知消息携带下行数据的 源地址时,根据所述下行数据的源地址判断是否存在来自所述用户设备的外部 网络服务器的下行数据; 外部网络服务器的下行数据时,记录所述用户设备在节约电量模式时,存在下 行数据到来的事件。
结合本发明实施例的第三种可能,本发明实施例还具有第四种可能,其中, 则所述记录单元还用于: 备的外部网络服务器的下行数据时,则不触发执行记录所述用户设备在节约电 量模式时, 存在下行数据到来的事件的操作;
则所述发送单元还用于: 备的外部网络服务器的下行数据时,则不触发执行向所述用户设备发送指示消 息的操作。
结合本发明实施例的第一种可能,本发明实施例还具有第五种可能,其中, 所述发送单元具体用于:
当所述确定单元根据所述接收单元接收的下行数据通知消息确定有发往 用户设备的下行数据且所述下行数据通知消息携带下行数据的源地址时,向所 述用户设备发送包含所述下行数据的源地址的指示消息,所述指示消息用于指 示所述用户设备根据所述下行数据的源地址判断所述下行数据是否来自所述 用户设备的外部网络服务器,以确定所述用户设备是否发起服务请求以建立数 据承载。
结合本发明实施例的第一方面以及本发明实施例的第一种可能至第五种 可能, 本发明实施例还具有第六种可能, 其中, 所述记录单元具体用于: 当所 述核心网节点设备为源移动性管理实体 MME时, 由源 MME记录所述用户设 备在节约电量模式时, 存在发往所述用户设备的下行数据的事件;
则所述发送单元具体用于:
由源 MME接收目的 MME在接收到用户设备发起的 TAU请求时, 向所 述源 MME发送的上下文请求消息, 所述上下文请求消息用于向所述源 MME 请求所述用户设备的上下文信息; 以及, 由所述源 MME向所述目的 MME发送上下文应答消息, 所述上下 文应答消息用于指示所述目的 MME在节约电量模式时存在发往所述用户设 备的下行数据, 以便所述目的 MME在接收到所述上下文应答消息后, 向所 述用户设备发送 TAU接受消息,所述 TAU接受消息用于指示所述用户设备在 节约电量模式时, 存在发往所述用户设备的下行数据。
结合本发明实施例的第一方面以及本发明实施例的第一种可能至第六种 可能, 本发明实施例还具有第七种可能, 其中, 所述发送单元发送的指示消息 为包含用户面指示的 TAU接受消息、包含活动指示的 TAU接受消息或者包含 MTC触发指示的 TAU接受消息。
结合本发明实施例的第一方面, 本发明实施例还具有第八种可能, 其中, 所述发送单元具体用于:
当接收到所述接收单元接收的所述用户设备发起的 TAU请求时, 发送初 始化用户设备上下文建立请求消息,以建立数据承载并通知用户设备在节约电 量模式时, 存在发往所述用户设备的下行数据。
结合本发明实施例的第八种可能,本发明实施例还具有第九种可能,其中, 所述发送单元具体用于:
向无线接入节点设备发送初始化用户设备上下文建立请求消息以建立数 据承载, 经由无线接入节点设备向所述用户设备发送的无线资源控制 RRC承 载建立消息, 用于通知用户设备在节约电量模式时,存在发往所述用户设备的 下行数据;
则所述设备还包括:
应答消息接收单元,用于接收所述无线接入节点设备在建立与所述用户设 备的 RRC承载后, 发送的初始上下文建立应答消息。
结合本发明实施例的第九种可能,本发明实施例还具有第十种可能,其中, 所述发送单元还用于:
在接收到所述应答消息接收单元接收的所述无线接入节点设备发送的初 始上下文建立应答消息后, 向所述用户设备发送 TAU接受消息。
根据本发明实施例的第二方面, 公开了一种用户设备, 包括:
请求单元, 用于向核心网节点设备发起 TAU请求; 指示消息接收单元,用于接收核心网节点设备在接收到所述请求单元发送 的 TAU请求后且确定所述用户设备在节约电量模式时存在发往用户设备的下 行数据的事件时, 向所述用户设备发送的指示消息, 所述指示消息用于指示所 述用户设备在节约电量模式时, 存在发往所述用户设备的下行数据;
数据获得单元,用于根据所述指示消息接收单元接收到的所述指示消息确 定在节约电量模式时存在发往所述用户设备的下行数据时,在建立数据承载后 获得所述下行数据。
结合本发明实施例的第二方面,本发明实施例还具有第十一种可能,其中, 所述指示消息接收单元具体用于:
接收核心网节点设备发送的 TAU接受消息,所述 TAU接受消息还用于指 示所述用户设备在接收到所述 TAU消息后, 发起服务请求建立数据承载; 则所述设备还包括:
服务请求单元,用于当接收到所述指示消息接收单元接收的核心网节点设 备发送的 TAU接受消息后, 向网络侧发起服务请求以建立数据承载。
结合本发明实施例的第十一种肯, 本发明实施例还具有第十二种可能, 其 中, 所述设备还包括:
判断单元, 用于当所述指示消息接收单元接收的 TAU接受消息包含所述 下行数据的源地址时,根据所述下行数据的源地址判断所述下行数据是否来自 所述用户设备的外部网络服务器;
则所述服务请求单元具体用于当所述判断单元判断所述下行数据来自所 述用户设备的外部网络服务器时, 向网络侧发起服务请求以建立数据承载。
结合本发明实施例的第二方面,本发明实施例还具有第十三种可能,其中, 所述指示消息接收单元具体用于:
接收核心网节点设备经由无线接入节点设备发送的数据承载建立消息; 则所述设备还包括:
RRC承载建立单元, 用于在接收到所述指示消息接收单元接收的数据承 载建立消息后, 与所述无线接入节点设备建立 RRC承载。
结合本发明实施例的第二方面以及本发明的第十一种可能至第十三种可 能, 本发明实施例还具有第十四种可能, 其中, 所述数据获得单元具体用于: 在确定与网络侧建立数据承载后,向网络侧发送数据报文以获取所述下行 数据; 或者, 在确定与网络侧建立数据承载后, 接收网络侧在建立数据承载后 发送的下行数据。 根据本发明实施例的第二方面,公开了一种用户设备节约电量的方法, 所 述方法应用于核心网节点设备, 包括:
当确定存在发往用户设备的下行数据且确定所述用户设备处于节约电量 模式时,记录所述用户设备在节约电量模式时,存在发往所述用户设备的下行 数据的事件;
当接收到所述用户设备发起的跟踪区更新 TAU请求且确定所述用户设备 在节约电量模式时存在发往用户设备的下行数据的事件时,向所述用户设备发 送指示消息, 所述指示消息用于指示所述用户设备在节约电量模式时,存在发 往所述用户设备的下行数据,以便于所述用户设备在建立数据承载后获得所述 下行数据。
结合本发明实施例的第三方面,本发明实施例还具有第十五种可能,其中, 所述方法还包括:
接收网关发送的下行数据通知消息; 或者,接收包含外部网络服务器地址 信息的机器类型通信 MTC触发消息;
则所述确定存在发往用户设备的下行数据包括:
当接收到网关发送的下行数据通知消息时,确定存在发往用户设备的下行 数据; 或者,
当接收到包含外部网络服务器地址信息的 MTC触发消息时, 确定存在发 往用户设备的下行数据。
结合本发明实施例的第三方面以及本发明实施例的第十五种可能,本发明 实施例还具有第十六种可能, 其中, 所述当接收到所述用户设备发起的跟踪区 更新 TAU请求时, 向所述用户设备发送指示消息, 所述指示消息用于指示所 述用户设备在节约电量模式时, 存在发往所述用户设备的下行数据包括:
当接收到所述用户设备发起的 TAU请求时, 发送 TAU接受消息, 所述 TAU接受消息用于通知用户设备在节约电量模式时, 存在发往所述用户设备 的下行数据, 并指示所述用户设备在接收到所述 TAU接受消息后, 发起服务 请求建立数据承载。
结合本发明实施例的第十五种可能, 本发明实施例还具有第十七种可能, 其中, 所述方法还包括:
在接收到网关发送的下行数据通知消息,确定有发往用户设备的下行数据 后, 当确定所述下行数据通知消息携带下行数据的源地址时,根据所述下行数 据的源地址判断是否存在来自所述用户设备的外部网络服务器的下行数据;如 果是, 则记录所述用户设备在节约电量模式时有下行数据到来的事件。
结合本发明实施例的第十七种可能, 本发明实施例还具有第十八种可能, 其中, 所述方法还包括:
当根据所述下行数据的源地址判断不存在来自所述用户设备的外部网络 服务器的下行数据时, 则不触发执行记录所述用户设备在节约电量模式时,存 在下行数据到来的事件的操作或者则不触发执行向所述用户设备发送指示消 息的操作。
结合本发明实施例的第十五种可能, 本发明实施例还具有第十九种可能, 其中, 当所述下行数据通知消息携带下行数据的源地址时, 所述向所述用户设 备发送指示消息包括:
向所述用户设备发送包含所述下行数据的源地址的指示消息,所述指示消 息用于所述用户设备根据所述下行数据的源地址判断所述下行数据是否来自 所述用户设备的外部网络服务器,以确定所述用户设备是否发起服务请求以建 立数据承载。
结合本发明实施例的第三方面以及本发明实施例的第十五种可能至第十 九种可能, 本发明实施例还具有第二十种可能, 其中, 当所述核心网节点设备 为源移动性管理实体 MME时,所述记录所述用户设备在节约电量模式时有发 往所述用户设备的下行数据的事件包括:
源 MME记录所述用户设备在节约电量模式时,存在发往所述用户设备的 下行数据的事件;
则所述当接收到所述用户设备发起的跟踪区更新 TAU请求且确定存在所 述用户设备在节约电量模式时有发往用户设备的下行数据的事件时,向所述用 户设备发送指示消息, 所述指示消息用于指示所述用户设备在节约电量模式 时, 存在发往所述用户设备的下行数据包括:
源 MME接收目的 MME在接收到用户设备发起的 TAU请求时, 向所述 源 MME发送的上下文请求消息, 所述上下文请求消息用于向源 MME请求所 述用户设备的上下文信息; 以及,
所述源 MME向所述目的 MME发送上下文应答消息, 所述上下文应答消 息用于指示所述目的 MME在节约电量模式时存在发往所述用户设备的下行 数据, 以便所述目的 MME在接收到所述上下文应答消息后, 向所述用户设备 发送 TAU接受消息,所述 TAU接受消息用于指示所述用户设备在节约电量模 式时存在发往所述用户设备的下行数据。
结合本发明实施例的第三方面以及本发明实施例的第十五种可能至第二 十种可能, 本发明实施例还具有第二十一种可能, 其中, 所述指示消息具体为 包含用户面指示的 TAU接受消息、 包含活动指示的 TAU接受消息或者包含 MTC触发指示的 TAU接受消息。
结合本发明实施例的第三方面, 本发明实施例还具有第二十二种可能, 其 中, 所述当接收到所述用户设备发起的跟踪区更新 TAU请求时, 向所述用户 设备发送指示消息指示所述用户设备在节约电量模式时有发往所述用户设备 的下行数据包括:
当接收到所述用户设备发起的 TAU请求时, 发送初始化用户设备上下文 建立请求消息,以建立数据承载并通知用户设备在节约电量模式时存在发往所 述用户设备的下行数据。
结合本发明实施例的第二十二种可能,本发明实施例还具有第二十三种可 能, 其中, 所述发送初始化用户设备上下文建立请求消息以建立数据承载并通 知用户设备所述用户设备在节约电量模式时有发往所述用户设备的下行数据 包括:
向无线接入节点设备发送初始化用户设备上下文建立请求消息以建立数 据承载, 经由无线接入节点设备向所述用户设备发送的无线资源控制 RRC承 载建立消息,通知用户设备在节约电量模式时,存在发往所述用户设备的下行 数据; 则所述方法还包括:
接收所述无线接入节点设备在建立与所述用户设备的 RRC承载后, 发送 的初始上下文建立应答消息。
结合本发明实施例的第二十三种可能,本发明实施例还具有第二十四种可 能, 其中, 所述方法还包括:
在接收到所述无线接入节点设备发送的初始上下文建立应答消息后,向所 述用户设备发送 TAU接受消息。
根据本发明实施例的第四方面,公开了一种用户设备节约电量的方法, 所 述方法应用于用户设备, 包括:
向核心网节点设备发起 TAU请求;
接收核心网节点设备在接收到所述 TAU请求后且确定存在所述用户设备 在节约电量模式时有发往所述用户设备的下行数据的事件时向所述用户设备 发送的指示消息,所述指示消息用于指示所述用户设备在节约电量模式时存在 发往所述用户设备的下行数据;
当根据所述指示消息确定在节约电量模式时存在发往所述用户设备的下 行数据时, 在建立数据承载后获得所述下行数据。
结合本发明实施例的第四方面, 本发明实施例还具有第二十五种可能, 其 中, 所述接收核心网节点设备发送的指示消息包括:
接收核心网节点设备发送的 TAU接受消息,所述 TAU接受消息还用于指 示所述用户设备在接收到所述 TAU接受消息后,发起服务请求建立数据承载; 则所述方法还包括:
在接收到所述核心网节点设备发送的 TAU接受消息后, 向网络侧发起服 务请求以建立数据承载。
结合本发明实施例的第二十五种可能,本发明实施例还具有第二十六种可 能, 其中, 当所述 TAU接受消息包含所述下行数据的源地址时, 在向网络侧 发起服务请求以建立数据承载之前, 所述方法还包括:
根据所述下行数据的源地址判断所述下行数据是否来自所述用户设备的 外部网络服务器;
如果是, 则向网络侧发起服务请求以建立数据承载。 结合本发明实施例的第四方面, 本发明实施例还具有第二十七种可能, 其 中, 所述接收核心网节点设备发送的指示消息包括:
接收核心网节点设备经由无线接入节点设备发送的数据承载建立消息; 则所述方法还包括:
在接收到所述数据承载建立消息后, 与所述无线接入节点设备建立 RRC 承载。
结合本发明实施例的第四方面以及本发明实施例第二十五种可能至第二 十七种可能, 本发明实施例还具有第二十八种可能, 其中, 所述在建立数据承 载后获得所述下行数据包括:
在确定与网络侧建立数据承载后,向网络侧发送数据报文以获取所述下行 数据; 或者
在确定与网络侧建立数据承载后,接收网络侧在建立数据承载后发送的下 行数据。
对于上述技术方案的技术效果分析如下: 在本发明实施例中, 当用户设备 处于节约电量模式且存在发往所述用户设备的下行数据时,核心网节点设备记 录所述事件; 当用户设备发起 TAU请求时,核心网节点设备根据记录的事件, 通过指示消息指示用户设备其在节约电量模式时,存在发往所述用户设备的下 行数据, 以便于所述用户设备在建立数据承载后获得所述下行数据。 因此, 无 论对于用户设备接收到指示消息后建立数据承载的方式,还是核心网节点设备 主动建立数据承载的方式, 均是在有下行数据到来时才指示用户设备,从而降 低了用户设备与网络侧建立数据承载的频率,节省了信令交互且节约了用户设 备的电量。
附图说明
图 1为现有技术用户设备的跟踪区更新流程示意图;
图 2为本发明提供的核心网节点设备一实施例示意图;
图 3为本发明提供的核心网节点设备又一实施例示意图;
图 4为本发明提供的用户设备一实施例示意图;
图 5为本发明提供的用户设备又一实施例示意图; 图 6为本发明提供的用户设备节约电量的方法一实施例示意图; 图 7为本发明提供的用户设备节约电量的方法又一实施例示意图; 图 8为本发明提供的用户设备节约电量的再一实施例示意图;
图 9为本发明提供的用户设备节约电量的另一实施例示意图;
图 10为本发明提供的用户设备节约电量的方法再一实施例示意图; 图 11为本发明提供的用户设备节约电量的方法另一实施例示意图; 图 12为本发明提供的用户设备节约电量的方法又一实施例示意图; 图 13为本发明提供的用户设备节约电量的方法又一实施例示意图。
具体实施方式
本发明旨在提供一种用户设备节约电量的方法和设备,以解决现有技术在 用户设备接收下行数据时每次均建立数据承载带来的信令浪费和电量耗费的 问题, 以节省信令交互以及用户设备的电量。
用户设备通常具有连接态和空闲态两种状态。 在用户设备处于连接态时, 其可以与网络侧进行数据传输。 当长时间没有数据传输时, 用户设备会进入空 闲态。在这种状态下, 当网络侧收到用户下行数据时,则会触发服务请求流程, 这时, MME会在用户设备所在的跟踪区域发起寻呼, 用户设备会响应 MME 的寻呼并进入连接态接收数据。为了让网络侧在下行数据到来时能够寻呼到用 户设备, 用户设备需要进行 TAU以告知网络侧用户设备所在的跟踪区域。 其 中, TAU 包括跨位置区的更新以及周期性的位置更新。 跨位置区的更新在用 户设备跨区时发生, 即用户设备在进入新的未注册区域时发起 TAU以告知网 络侧当前所在的跟踪区域。 周期性的位置更新是指用户设备会周期性地发起 TAU进入连接态并上报网络侧用户设备所在的位置。 用户设备会周期性的发 起跟踪区更新流程, 进入连接态并上报网络侧用户设备所在的位置。
参见图 1, 为现有技术用户设备的跟踪区更新流程示意图。 图 1 中, UE ( User Equipment )为用户设备, eNodeB为演进型基站, Target MME ( Target Mobility Management Entity ) 为目的移动性管理实体, Source MME(Source Mobility Management Entity) 为源移动性管理实体, S-GW ( Serving Gateway ) 为服务网关, P-GW ( PDN Gateway )为分组数据网关, HSS ( Home Subscriber Server ) 为家乡签约服务器。 步骤 1: 用户设备发送跟踪区域更新请求 TAU Request给 eNodeB。
其中, 消息中携带全球唯一临时标识 (GUTI, Globally Unique Temporary Identity)。 该标识由 Source MME分配, 包含全球唯一 MME标识 (GUMMEI, Globally Unique MME Identifier),是在附着 attach流程或者前一个 TAU流程时 提供给用户设备的。
步骤 2·· eNodeB转发用户设备的路由更新求给当前能够为用户设备提供 月良务的 MME (即 Target MME)
步骤 3: Target MME根据 GUMMEI信息获知用户设备上下文所在的 MME (即 Source MME ), 向该 MME (即 Source MME)发送上下文请求消息, 消息 中携带 GUTI标识。
步骤 4: Source MME根据 GUTI确定用户设备的上下文, 在上下文应答 消息中将用户设备上下文信息返回给 Target MME。
步骤 5: Target MME与 HSS实现对用户设备的鉴权以及 NAS安全设置, 例如完整性保护以及加密等。
步骤 6: Target MME发送 Context Ack消息给 Source MME, 消息指明是
TAU流程是否发生了 S-GW变化, 以便于 Source MME决策是否删除对应的 S-GW的用户上下文。
步骤 7: 如果 S-GW没有发生变化, Target MME发起修改承载请求消息 Modify Bearer Request给 S-GW, 提供当前用户设备的位置信息等
步骤 8-9: 仅发生在用户设备位置发生变化, 需要上报给 P-GW的场景。
S-GW向 P-GW发送修改承载请求消息 Modify Bearer Request, PGW向 S-GW 返回爹改 ^载应答消息 Modify Bearer Response 0
步骤 10: S-GW发送修改承载应答消息给 Target MME。
步骤 11 : Target MME通过更新位置请求 Update Location Request更新 HSS 设备中存储的用户设备位置信息,
步骤 12: HSS发送取消位置消息 Cancel Location/Ack消息给 Source MME; MME移除用户上下文。
步骤 13: HSS通过更新位置消息 Update Location Ack发送用户签约数据 给 Target MME。 步骤 14: Target MME为用户设备分配新的 GUTI, GUTI 内包含 Target MME的 GUMMEI; Target MME发送跟踪区域更新接受消息给 eNodeB,携带 新分配的 GUTI。
步骤 15: eNodeB转发跟踪区域更新接受消息给用户设备。
发明人在实现本发明的过程中发现,在图 1所示的现有技术中, 为了保证 下行数据到来时, 网络侧能够准确地寻呼用户设备, 需要用户设备时刻监听网 络并保持位置更新, 这将带来用户设备电量的严重消耗。 为了降低用户设备的 电量消耗, 用户设备可以启用电量节约模式 (Power saving mode)。 用户设备会 向网络侧请求一个活跃时间(Active Time), 每次用户设备从连接态转入空闲态 后, 用户设备会启动定时器 (该定时器的时间值为活跃时间)。 当该定时器超时 后, 用户设备会从空闲态进入节约电量模式。 在电量节约模式下, 用户设备不 再监听网络侧的寻呼消息, 也就是用户设备不会响应网络侧的寻呼。
然而, 由于用户设备进入节约电量模式后无法响应网络侧的寻呼, 因此, 外部网络服务器的推送的数据报文无法到达用户设备,从而使外部网络服务器 触发的业务无法实施, 例如推送业务 (PUSH service, 例如对于无线抄表系统, 电力公司的服务器可能需要查询用户电表的用电量)将无法实施。 为了解决这 个问题, 用户设备需要在每次发起跟踪区更新流程后主动去建立数据承载, 并 向外部网络服务器发送数据报文, 用以查询是否有外部网络服务器触发的业 务。 然而, 在某些业务场景下, 外部网络服务器触发业务的频率远远低于用户 设备发起 TAU的频率(例如由外部网络服务器触发的业务可能会频率很低, 例如每月一次; 而用户设备发起跟踪区更新的频率会比较高, 例如每小时一 次), 因此用户设备每次发起 TAU流程均建立数据承载需要触发大量的信令, 从而导致大量的信令浪费和用户电量的大量损耗。
因此,需要提供用户设备节约电量的方法和设备, 以解决现有技术在用户 设备接收下行数据时每次均建立数据承载带来的信令浪费和电量损耗的问题。
为了使本技术领域的人员更好地理解本发明中的技术方案,下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。 基 于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获 得的所有其他实施例, 都应当属于本发明保护的范围。
一个实施例
参见图 2, 为本发明提供的核心网节点设备一实施例示意图。 其中, 图 2 所示的核心网节点设备是为了实施下述图 6-图 13所示实施例中的方法。
需要说明的是,本发明提供的核心网节点设备可以应用于不同的通信网络 系统, 包括但不限于 S AE ( System Architecture Evolved, 系统架构演进网络) /LTE ( Long Term Evolved, 长期演进网络) 网络、 UMTS ( Universal Mobile Telecommunications System, 通用移动通信系统)网络、 CDMA ( Code Division Mutiple Access, 码分多址)等。 所述核心网节点设备包括但不限于移动性管 理实体 MME、 服务 GPRS支持节点 SGSN ( Serving GPRS Support Node )或 者是移动交换中心 MSC ( Mobile Switching Center ), 在此不进行限定。 例如, 对于 SAE/LTE网络而言,其核心网节点设备可以是 MME,无线接入节点设备 可以是 eNB;对于 UMTS网络而言,其核心网节点设备可以是 SGSN或 MSC, 无线接入节点设备可以是 RNC或者 nodeB。 下面以蜂窝网络为 SAE/LTE网络 为例进行说明, 其他蜂窝网络可以参照下述实施例实施。
本发明提供的核心网节点设备包括:
记录单元 201, 用于当确定存在发往用户设备的下行数据且确定所述用户 设备处于节约电量模式时,记录所述用户设备在节约电量模式时,存在发往所 述用户设备的下行数据的事件。
接收单元 202, 用于接收所述用户设备发起的跟踪区更新 TAU请求。 发送单元 203, 用于当接收到所述接收单元接收的所述用户设备发起的 TAU请求且确定所述记录单元存在所述用户设备在节约电量模式时有发往用 户设备的下行数据的事件时, 向所述用户设备发送指示消息, 所述指示消息用 于指示所述用户设备在节约电量模式时, 存在发往所述用户设备的下行数据, 以便于所述用户设备在建立数据承载后获得所述下行数据。
进一步地, 所述接收单元还用于:
接收网关发送的下行数据通知消息; 或者,接收包含外部网络服务器地址 信息的机器类型通信 MTC触发消息;
则所述核心网节点设备还包括确定单元, 用于: 当接收到所述接收单元接收的网关发送的下行数据通知消息时,确定存在 发往用户设备的下行数据; 或者, 当接收到包含外部网络服务器地址信息的机 器类型通信 MTC触发消息时, 确定存在发往用户设备的下行数据。 本领域技 术人员可以理解的是, 在此实施例中, 以蜂窝网络为 SAE/LTE网络为例进行 说明, 核心网节点设备也可以通过其他方式确定有发往用户设备的下行数据。 此外, 需要说明的是, 用户设备可以向网络侧(核心网节点设备)请求一个活 跃时间(Active Time), 每次用户设备从连接态转入空闲态后, 用户设备会启动 定时器 (该定时器的时间值为活跃时间)。 当该定时器超时后, 用户设备会从空 闲态进入节约电量模式。在节约电量模式下, 用户设备不再监听网络侧的寻呼 消息, 也就是用户设备不会响应网络侧的寻呼。 相应地, 网络侧(核心网节点 设备)的确定单元也会根据用户设备侧请求的活跃时间以及网络侧(核心网节 点设备)启动的定时器, 判断用户设备是否处于节约电量模式。
需要说明的是,记录单元 201用于当确定存在发往用户设备的下行数据且 确定所述用户设备处于节约电量模式时, 记录所述用户设备在节约电量模式 时, 存在发往所述用户设备的下行数据的事件。
当核心网节点设备的接收单元 202接收到用户设备发起的 TAU请求且确 定所述记录单元存在所述用户设备在节约电量模式时有发往用户设备的下行 数据的事件时, 则所述发送单元 203向用户设备发送指示消息, 所述指示消息 用于指示所述用户设备在节约电量模式时, 存在发往所述用户设备的下行数 据。 具体地, 当接收到用户设备发送的 TAU请求时, 核心网节点设备会根据 事件记录判断所述用户设备在节约电量模式时是否有发往所述用户设备的下 行数据,如果有, 则向所述用户设备发送指示消息指示所述用户设备在节约电 量模式时有发往所述用户设备的下行数据。具体实现时, 所述发送单元发送的 指示消息具体可以是包含用户面指示的 TAU接受消息、 包含活动指示的 TAU 接受消息或者包含 MTC触发指示的 TAU接受消息等, 本发明对此不进行限 定。 所述指示消息用于通知用户设备其在节约电量模式时有下行数据到来, 以 便于用户设备在建立数据承载后获得所述下行数据。
根据用户设备与核心网节点设备建立数据承载方式的不同,本发明具有不 同的实现方式。 在一种可能的实现方式中, 所述发送单元 203具体用于: 当接 收到接收单元接收的所述用户设备发起的 TAU请求时, 发送跟踪区更新 TAU 接受消息, 所述 TAU接受消息用于通知用户设备在节约电量模式时, 存在发 往所述用户设备的下行数据, 并指示所述用户设备在接收到所述 TAU接受消 息后, 发起服务请求建立数据承载。 也就是说, 核心网节点设备向用户设备发 送的指示消息还用于指示用户设备在接收到所述指示消息后,发起服务请求建 立数据承载。 用户设备在接收到所述指示消息后, 发起服务请求( Service Request ) 以建立数据承载。 在建立数据承载后, 用户设备可以主动向网络侧 获取下行数据, 也可以等待接收网络侧发送的下行数据。
更进一步地, 所述核心网节点设备还可以进一步包括判断单元, 所述判断 单元用于根据下行数据的地址信息判断是否该下行数据来自用户设备的外部 网络服务器,只有来自外部网络服务器的下行数据才在指示消息中指示用户设 备,从而避免了非来自服务器的报文导致用户设备建立数据承载。 则所述设备 还包括:
判断单元,用于当所述确定单元根据所述接收单元接收的下行数据通知消 息确定有发往用户设备的下行数据且所述下行数据通知消息携带下行数据的 源地址时,根据所述下行数据的源地址判断是否来自所述用户设备的外部网络 服务器的下行数据; 网络服务器的下行数据时,记录所述用户设备在节约电量模式时,存在下行数 据到来的事件。
进一步的, 则所述记录单元还用于: 备的外部网络服务器的下行数据,则不触发执行记录所述用户设备在节约电量 模式时, 存在下行数据到来的事件的操作;
则所述发送单元还用于: 备的外部网络服务器的下行数据时,则不触发执行向所述用户设备发送指示消 息的操作。 进一步地, MME在向用户设备发送的指示消息中包含所述下行数据的源 地址,从而使得用户设备根据该地址信息判断是否该下行数据来自用户设备的 外部网络服务器,只有来自外部网络服务器的下行数据时用户设备才发起服务 请求以建立数据承载,从而避免了非来自服务器的报文导致用户设备建立数据 承载。 则所述发送单元具体用于:
当所述确定单元根据所述接收单元接收的下行数据通知消息确定有发往 用户设备的下行数据且所述下行数据通知消息携带下行数据的源地址时,向所 述用户设备发送包含所述下行数据的源地址的指示消息,所述指示消息用于指 示所述用户设备根据所述下行数据的源地址判断所述下行数据是否来自所述 用户设备的外部网络服务器,以确定所述用户设备是否发起服务请求以建立数 据承载。
进一步地, 当所述核心网节点设备为源移动性管理实体 MME时, 所述记 录单元具体用于: 由源 MME记录所述用户设备在节约电量模式时, 存在发往 所述用户设备的下行数据的事件;
则所述发送单元具体用于:
由源 MME接收目的移动性管理实体(目的 MME )在接收到用户设备发 起的 TAU请求时, 向所述源 MME发送的上下文请求消息, 所述上下文请求 消息用于向源 MME请求所述用户设备的上下文信息;
以及, 由所述源 MME向所述目的 MME发送上下文应答消息, 所述上下 文应答消息用于指示所述用户设备在节约电量模式时,存在有发往所述用户设 备的下行数据, 以便所述目的 MME在接收到所述上下文应答消息后, 向所述 用户设备发送 TAU接受消息,所述 TAU接受消息用于指示所述用户设备在节 约电量模式时, 存在发往所述用户设备的下行数据。
进一步地, 所述发送单元发送的指示消息具体为包含用户面指示的 TAU 接受消息、 包含活动指示的 TAU接受消息或者包含 MTC触发指示的 TAU接 受消息。
在另外一种可能的实现方式中,当接收到所述接收单元接收的所述用户设 备发起的 TAU请求时, 核心网节点设备发送初始化用户设备上下文建立请求 消息, 以建立数据承载并通知用户设备在节约电量模式时,存在发往所述用户 设备的下行数据。也就是说,核心网节点设备通过隐性指示的方式通知用户设 备其在节约电量模式时,存在发往所述用户设备的下行数据。在这一种实现方 式中, 是由核心网节点设备主动建立数据承载的。
则所述发送单元具体用于:
当接收到所述接收单元接收的所述用户设备发起的 TAU请求时, 发送初 始化用户设备上下文建立请求消息,以建立数据承载并通知用户设备在节约电 量模式时, 存在发往所述用户设备的下行数据。
进一步地, 所述发送单元具体用于:
向无线接入节点设备发送初始化用户设备上下文建立请求消息以建立数 据承载, 经由无线接入节点设备向所述用户设备发送的无线资源控制 RRC承 载建立消息, 用于通知用户设备在节约电量模式时,存在发往所述用户设备的 下行数据;
则所述设备还包括:
应答消息接收单元,用于接收所述无线接入节点设备在建立与所述用户设 备的 RRC承载后, 发送的初始上下文建立应答消息。
进一步地, 所述发送单元还用于:
在接收到所述应答消息接收单元接收的所述无线接入节点设备发送的初 始上下文建立应答消息后, 向所述用户设备发送 TAU接受消息。
在本发明这一实施例中,当用户设备处于节约电量模式且存在发往所述用 户设备的下行数据时, 核心网节点设备记录所述事件; 当用户设备发起 TAU 请求时,核心网节点设备根据记录的事件通过指示消息,指示用户设备其在节 约电量模式时,存在发往所述用户设备的下行数据, 以便于所述用户设备在建 立数据承载后获得所述下行数据。 因此, 无论对于用户设备接收到指示消息后 建立数据承载的方式,还是核心网节点设备主动建立数据承载的方式, 均是在 有下行数据到来时才指示用户设备,从而降低了用户设备与网络侧建立数据承 载的频率, 节省了信令交互且节约了用户设备的电量。 又一实施例
参见图 3, 为本发明提供的核心网节点设备又一实施例示意图。 其中, 图 3所示的核心网节点设备是为了实施下述图 6-图 13所示实施例中的方法。 图 3描述了本发明另一个实施例提供的核心网节点设备的结构,包括至少 一个处理器 301 (例如 CPU ), 存储器 302, 接收器 303, 发送器 304和至少一 个通信总线 305, 用于实现这些装置之间的连接通信。 处理器 301用于执行存 储器 302中存储的可执行模块, 例如计算机程序。存储器 302可能包含高速随 机存取存储器(RAM: Random Access Memory ), 也可能还包括非不稳定的存 4诸器( non- volatile memory ), 例如至少一个磁盘存 4诸器。
在一些实施方式中, 处理器 301用于: 当确定存在发往用户设备的下行数 据且确定所述用户设备处于节约电量模式时,记录所述用户设备在节约电量模 式时, 存在发往所述用户设备的下行数据的事件。
接收器 303用于: 接收所述用户设备发起的跟踪区更新 TAU请求。
发送器 304用于: 当接收到所述接收器接收的所述用户设备发起的 TAU 请求且确定所述处理器存在所述用户设备在节约电量模式时有发往用户设备 的下行数据的事件时, 向所述用户设备发送指示消息, 所述指示消息用于指示 所述用户设备在节约电量模式时,存在发往所述用户设备的下行数据, 以便于 所述用户设备在建立数据承载后获得所述下行数据。
其中,所述接收器 303还用于:接收网关发送的下行数据通知消息;或者, 接收包含外部网络服务器地址信息的机器类型通信 MTC触发消息。
则所述处理器 301还用于:当接收到所述接收器 303接收的网关发送的下 行数据通知消息时, 确定存在发往用户设备的下行数据; 或者, 当接收到所述 接收器 303接收的包含外部网络服务器地址信息的 MTC触发消息时, 确定存 在发往用户设备的下行数据。
其中, 所述发送器 304具体用于: 当接收到所述接收器 303接收的用户设 备发起的 TAU请求时, 发送 TAU接受消息, 所述 TAU接受消息用于通知用 户设备在节约电量模式时,存在发往所述用户设备的下行数据, 并指示所述用 户设备在接收到所述 TAU接受消息后, 发起服务请求建立数据承载。
其中, 所述处理器 301还用于: 在接收到网关发送的下行数据通知消息, 确定有发往用户设备的下行数据后,当确定所述下行数据通知消息携带下行数 据的源地址时,根据所述下行数据的源地址判断是否存在来自所述用户设备的 外部网络服务器的下行数据; 如果是, 则记录所述用户设备在节约电量模式时 有下行数据到来的事件。
其中, 所述处理器 301还用于: 当根据所述下行数据的源地址判断不存在 来自所述用户设备的外部网络服务器的下行数据时,则不触发执行记录所述用 户设备在节约电量模式时, 存在下行数据到来的事件的操作。
则所述发送器 304还用于:当所述处理器 301根据所述下行数据的源地址 判断不存在来自所述用户设备的外部网络服务器的下行数据时,则不触发执行 向所述用户设备发送指示消息的操作。
其中, 所述发送器 304还用于: 当所述处理器 301根据所述接收器 303 接收的下行数据通知消息确定有发往用户设备的下行数据且所述下行数据通 知消息携带下行数据的源地址时,向所述用户设备发送包含所述下行数据的源 地址的指示消息,所述指示消息用于指示所述用户设备根据所述下行数据的源 地址判断所述下行数据是否来自所述用户设备的外部网络服务器,以确定所述 用户设备是否发起服务请求以建立数据承载。
其中, 所述处理器 301还用于: 当所述核心网节点设备为源移动性管理实 体 MME时, 由源 MME记录所述用户设备在节约电量模式时, 存在发往所述 用户设备的下行数据的事件;
则所述发送器 304具体用于: 由源 MME接收目的 MME在接收到用户设 备发起的 TAU请求时, 向所述源 MME发送的上下文请求消息, 所述上下文 请求消息用于向所述源 MME请求所述用户设备的上下文信息; 以及, 由所述 源 MME向所述目的 MME发送上下文应答消息, 所述上下文应答消息用于指 示所述目的 MME在节约电量模式时存在发往所述用户设备的下行数据,以便 所述目的 MME在接收到所述上下文应答消息后, 向所述用户设备发送 TAU 接受消息, 所述 TAU接受消息用于指示所述用户设备在节约电量模式时, 存 在发往所述用户设备的下行数据。
其中, 所述发送器 304发送的指示消息为包含用户面指示的 TAU接受消 息、包含活动指示的 TAU接受消息或者包含 MTC触发指示的 TAU接受消息。
其中, 所述发送器 304具体用于: 当接收到所述接收器 303接收的所述用 户设备发起的 TAU请求时, 发送初始化用户设备上下文建立请求消息, 以建 立数据承载并通知用户设备在节约电量模式时,存在发往所述用户设备的下行 数据。
其中, 所述发送器 304具体用于: 向无线接入节点设备发送初始化用户设 备上下文建立请求消息以建立数据承载,经由无线接入节点设备向所述用户设 备发送的无线资源控制 RRC承载建立消息, 用于通知用户设备在节约电量模 式时, 存在发往所述用户设备的下行数据;
则所述接收器 303还用于:接收所述无线接入节点设备在建立与所述用户 设备的 RRC承载后, 发送的初始上下文建立应答消息。
其中, 所述发送器 304还用于: 在接收到所述接收器 303接收的所述无线 接入节点设备发送的初始上下文建立应答消息后, 向所述用户设备发送 TAU 接受消息。
再一实施例
参见图 4, 为本发明提供的用户设备一实施例示意图。 其中, 图 4所示的 用户设备是为了实施下述图 6-图 13所示实施例中的方法。
需要说明的是, 本发明提供的用户设备可以应用于不同的通信网络系统, 包括但不限于 SAE/LTE网络、 UMTS网络、 CDMA网络等。
所述用户设备包括:
请求单元 401, 用于向核心网节点设备发起跟踪区更新 TAU请求。 其中, 用户设备向核心网节点设备发送 TAU请求。 所述 TAU请求可以是周期性的 TAU请求。
指示消息接收单元 402, 用于接收核心网节点设备在接收到所述请求单元 发送的 TAU请求后且确定所述用户设备在节约电量模式时存在发往用户设备 的下行数据的事件时, 向所述用户设备发送的指示消息, 所述指示消息用于指 示所述用户设备在节约电量模式时, 存在发往所述用户设备的下行数据。 数据获得单元 403, 用于根据所述指示消息接收单元接收到的所述指示消 息,确定在节约电量模式时存在发往所述用户设备的下行数据时,在建立数据 承载后获得所述下行数据。
需要说明的是, 用户设备接收核心网节点设备发送的指示消息。 其中, 所 述指示消息是在所述核心网节点设备在接收到用户设备发送的 TAU请求后、 且确定所述用户设备处于节约电量模式时有发往所述用户设备的下行数据时, 向所述用户设备发送的。 需要说明的是, 所述核心网节点设备用于当确定有发 往用户设备的下行数据且确定所述用户设备处于节约电量模式时,记录所述用 户设备在节约电量模式时有发往所述用户设备的下行数据的事件。当接收到用 户设备发送的 TAU请求时, 核心网节点设备则会根据记录判断所述用户设备 在节约电量模式时是否存在发往所述用户设备的下行数据,如果有, 则向所述 用户设备发送指示消息,所述指示消息用于指示所述用户设备在节约电量模式 时, 存在发往所述用户设备的下行数据。 其中, 所述用户设备的指示消息接收 单元接收的指示消息可以是包含用户面指示的 TAU接受消息、 包含活动指示 的 TAU接受消息或者包含 MTC触发指示的 TAU接受消息, 本发明对指示消 息的类型不进行限定。
在一种可能的实现方式中, 所述指示消息接收单元具体用于: 接收核心网 节点设备发送的 TAU接受消息,所述 TAU接受消息还用于指示所述用户设备 在接收到所述 TAU接受消息后, 发起服务请求建立数据承载;
则所述设备还包括: 服务请求单元, 用于当接收到所述指示消息接收单元 接收的核心网节点设备发送的 TAU接受消息后, 向网络侧发起服务请求以建 立数据承载。
在另外一种可能的实现方式中, 网络侧在接收到用户设备的 TAU请求, 且确定所述用户设备在节约电量模式时有发往所述用户设备的下行数据时,则 由核心网节点设备主动发起数据承载的建立。
则所述用户设备所述指示消息接收单元具体用于:接收核心网节点设备经 由无线接入节点设备发送的数据承载建立消息;
则所述用户设备还包括: RRC承载建立单元, 用于在接收到所述指示消息接收单元接收的数据承 载建立消息后, 与所述无线接入节点设备建立 RRC承载。
在另外一种可能的实现方式中, 所述用户设备还包括:
判断单元, 用于当所述指示消息接收单元接收的 TAU接受消息包含所述 下行数据的源地址时,根据所述下行数据的源地址判断所述下行数据是否来自 所述用户设备的外部网络服务器;
则所述服务请求单元具体用于当所述判断单元判断所述下行数据来自所 述用户设备的外部网络服务器时, 向网络侧发起服务请求以建立数据承载。
进一步地,所述数据获得单元具体用于:在确定与网络侧建立数据承载后, 向网络侧发送数据报文以获取所述下行数据; 或者,在确定与网络侧建立数据 承载后, 接收网络侧在建立数据承载后发送的下行数据。
在本发明这一实施例中,当用户设备处于节约电量模式且存在发往所述用 户设备的下行数据时, 核心网节点设备记录所述事件; 当用户设备发起 TAU 请求时,核心网节点根据记录的事件通过指示消息,指示用户设备其在节约电 量模式时存在发往所述用户设备的下行数据,以便于所述用户设备在建立数据 承载后获得所述下行数据。 因此, 无论对于用户设备接收到指示消息后建立数 据承载的方式,还是核心网节点设备主动建立数据承载的方式, 均是在有下行 数据到来时才指示用户设备,从而降低了用户设备与网络侧建立数据承载的频 率, 节省了信令交互且节约了用户设备的电量。
进一步地,在一种可能的实现方式中, 用户设备仅在接收到核心网节点设 备发送的指示消息, 根据所述指示消息确定所述用户设备在节约电量模式时, 存在发往所述用户设备的下行数据时,才向网络侧发起数据请求以建立数据承 载。 区别于现有技术中用户设备每次发起 TAU请求均建立数据承载的方式, 本发明实施例提供的方法大大降低了用户设备与网络侧建立数据承载的频率, 节约了信令交互以及用户设备的电量。
更进一步地,在一种可能的实现方式中, 区别于现有技术中用户设备每次 发起 TAU请求均建立数据承载的方式,用户设备发起 TAU请求后并不需要建 立数据承载, 而是由网络侧(例如核心网节点设备)在确定所述用户设备在节 约电量模式时存在发往所述用户设备的下行数据时,主动与用户设备建立数据 承载以便用户设备获取所述下行数据。因此,用户设备也无需在每次发起 TAU 请求均建立数据承载,本发明实施例提供的方法大大降低了用户设备与网络侧 建立数据承载的频率, 节约了信令交互以及用户设备的电量。 又一实施例
参见图 5, 为本发明提供的用户设备又一实施例示意图。 其中, 图 5所示 的用户设备是为了实施下述图 6-图 13所示实施例中的方法。
图 5描述了本发明另一个实施例提供的用户设备的结构,包括至少一个处 理器 501 (例如 CPU ), 存储器 502, 接收器 503, 发送器 504和至少一个通信 总线 505,用于实现这些装置之间的连接通信。处理器 501用于执行存储器 502 中存储的可执行模块, 例如计算机程序。存储器 502可能包含高速随机存取存 储器 (RAM: Random Access Memory ), 也可能还包括非不稳定的存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
在一些实施方式中,
所述发送器 504用于: 向核心网节点设备发起跟踪区更新 TAU请求; 所述接收器 503用于: 接收核心网节点设备在接收到所述 TAU请求后且 确定存在所述用户设备在节约电量模式时有发往所述用户设备的下行数据的 事件时向所述用户设备发送的指示消息,所述指示消息用于指示所述用户设备 在节约电量模式时存在发往所述用户设备的下行数据;
所述处理器 501用于:当根据所述指示消息确定在节约电量模式时存在发 往所述用户设备的下行数据时, 在建立数据承载后获得所述下行数据。
其中, 所述接收器 503还用于: 接收核心网节点设备发送的 TAU接受消 息,所述 TAU接受消息还用于指示所述用户设备在接收到所述 TAU接受消息 后, 发起服务请求建立数据承载;
则所述处理器 501还用于:在所述接收器 503接收到所述核心网节点设备 发送的 TAU接受消息后, 向网络侧发起服务请求以建立数据承载。
其中, 所述处理器 501还用于: 当所述接收器 503接收的所述 TAU接受 消息包含所述下行数据的源地址时,根据所述下行数据的源地址判断所述下行 数据是否来自所述用户设备的外部网络服务器; 如果是, 则向网络侧发起服务 请求以建立数据承载。
其中, 所述接收器 503还用于: 接收核心网节点设备经由无线接入节点设 备发送的数据承载建立消息;
则所述处理器 501还用于:在所述接收器 503接收到所述数据承载建立消 息后, 与所述无线接入节点设备建立 RRC承载。
其中, 所述处理器 501还用于: 在确定与网络侧建立数据承载后, 向网络 侧发送数据报文以获取所述下行数据;或者,在确定与网络侧建立数据承载后, 接收网络侧在建立数据承载后发送的下行数据。 另一实施例
参见图 6, 为本发明提供的用户设备节约电量的方法一实施例示意图。 所 示方法应用于核心网节点设备侧。本发明提供的方法可以应用于不同的通信网 络系统, 包括但不限于 S AE ( System Architecture Evolved, 系统架构演进网络) /LTE ( Long Term Evolved, 长期演进网络) 网络、 UMTS ( Universal Mobile Telecommunications System, 通用移动通信系统)网络、 CDMA ( Code Division Mutiple Access, 码分多址)等。 所述核心网节点设备包括但不限于移动性管 理实体 MME、 服务 GPRS支持节点 SGSN ( Serving GPRS Support Node )或 者是移动交换中心 MSC ( Mobile Switching Center ), 在此不进行限定。 例如, 对于 SAE/LTE网络而言,其核心网节点设备可以是 MME,无线接入节点设备 可以是 eNB;对于 UMTS网络而言,其核心网节点设备可以是 SGSN或 MSC, 无线接入节点设备可以是 RNC或者 nodeB。 下面以蜂窝网络为 SAE/LTE网络 为例进行说明, 其他蜂窝网络可以参照下述实施例实施。
所述方法例如可以包括:
S601 ,当确定存在发往用户设备的下行数据且确定所述用户设备处于节约 电量模式时,记录所述用户设备在节约电量模式时,存在发往所述用户设备的 下行数据的事件。
具体实现时,核心网节点设备确定存在发往用户设备的下行数据包括: 当 接收到网关发送的下行数据通知消息时, 则确定有发往用户设备的下行数据; 或者, 当接收到包含外部网络服务器地址信息的 MTC ( Machine Type
Communication, 机器类型通信)触发消息时, 确定有发往用户设备的下行数 据。 本领域技术人员可以理解的是, 在此实施例中, 以蜂窝网络为 SAE/LTE 网络为例进行说明,核心网节点设备也可以通过其他方式确定有发往用户设备 的下行数据。
需要说明的是, 用户设备可以向网络侧(核心网节点设备)请求一个活跃 时间(Active Time), 每次用户设备从连接态转入空闲态后, 用户设备会启动定 时器 (该定时器的时间值为活跃时间)。 当该定时器超时后, 用户设备会从空闲 态进入节约电量模式。在节约电量模式下, 用户设备不再监听网络侧的寻呼消 息, 也就是用户设备不会响应网络侧的寻呼。 相应地, 网络侧(核心网节点设 备)也会根据用户设备侧请求的活跃时间以及网络侧(核心网节点设备)启动 的定时器, 判断用户设备是否处于节约电量模式。
当核心网节点设备确定有发往用户设备的下行数据且确定所述用户设备 处于节约电量模式时,则记录所述用户设备在节约电量模式时有发往所述用户 设备的下行数据的事件, 以便于在接收到用户设备的 TAU请求时, 向用户设 备发送指示消息。
S602, 当接收到所述用户设备发起的跟踪区更新 TAU请求时, 向所述用 户设备发送指示消息, 所述指示消息用于指示所述用户设备在节约电量模式 时,存在发往所述用户设备的下行数据, 以便于所述用户设备在建立数据承载 后获得所述下行数据。
当核心网节点设备接收到用户设备发起的 TAU请求时, 则向用户设备发 送指示消息, 所述指示消息用于指示所述用户设备在节约电量模式时,存在发 往所述用户设备的下行数据。 具体地, 当接收到用户设备发送的 TAU请求时, 核心网节点设备会根据事件记录判断所述用户设备在节约电量模式时是否有 发往所述用户设备的下行数据,如果有, 则向所述用户设备发送指示消息指示 所述用户设备在节约电量模式时,存在发往所述用户设备的下行数据。具体实 现时, 所述指示消息具体可以是包含用户面指示的 TAU接受消息、 包含活动 指示的 TAU接受消息或者包含 MTC触发指示的 TAU接受消息等, 本发明对 此不进行限定。所示指示消息用于通知用户设备其在节约电量模式时有下行数 据到来, 以便于用户设备在建立数据承载后获得所述下行数据。
根据用户设备与核心网节点设备建立数据承载方式的不同,本发明具有不 同的实现方式。在一种可能的实现方式中, 当接收到所述用户设备发起的跟踪 区更新 TAU请求时,核心网节点设备发送 TAU接受消息以通知用户设备所述 用户设备在节约电量模式时,存在发往所述用户设备的下行数据, 并指示所述 用户设备在接收到所述消息后, 发起服务请求建立数据承载。 也就是说, 核心 网节点设备向用户设备发送的指示消息还用于指示用户设备在接收到所述消 息后, 发起服务请求建立数据承载。 用户设备在接收到所述指示消息后, 发起 服务请求( Service Request ) 以建立数据承载。 在建立数据承载后, 用户设备 可以主动向网络侧获取下行数据也可以等待接收网络侧发送的下行数据。
在另外一种可能的实现方式中,当接收到所述用户设备发起的跟踪区更新 TAU请求时, 核心网节点设备发送初始化用户设备上下文建立请求消息以建 立数据承载, 并通知用户设备所述用户设备在节约电量模式时,存在发往所述 用户设备的下行数据。也就是说,核心网节点设备通过隐性指示的方式通知用 户设备其在节约电量模式时有发往所述用户设备的下行数据。在这一种实现方 式中, 是由核心网节点设备主动建立数据承载的。 具体实现时, 核心网节点设 备向无线接入节点设备发送初始化用户设备上下文建立请求消息以建立数据 承载, 经由无线接入节点设备向所述用户设备发送的无线资源控制 RRC承载 建立消息, 通知用户设备在节约电量模式时存在发往所述用户设备的下行数 据。核心网节点设备还用于接收所述无线接入节点设备在建立与所述用户设备 的 RRC承载后发送的初始上下文建立应答消息。 在接收所述无线接入节点设 备发送的初始上下文建立应答消息之后,核心网节点设备向所述用户设备发送 跟踪区更新接受消息。
在本发明这一实施例中,当用户设备处于节约电量模式且存在发往所述用 户设备的下行数据时, 核心网节点设备记录所述事件; 当用户设备发起 TAU 请求时,核心网节点设备根据记录的事件通过指示消息,指示用户设备其在节 约电量模式时,存在发往所述用户设备的下行数据, 以便于所述用户设备在建 立数据承载后获得所述下行数据。 因此, 无论对于用户设备接收到指示消息后 建立数据承载的方式,还是核心网节点设备主动建立数据承载的方式, 均是在 有下行数据到来时才指示用户设备,从而降低了用户设备与网络侧建立数据承 载的频率, 节省了信令交互且节约了用户设备的电量。 又一实施例
参见图 7, 为本发明提供的用户设备节约电量的方法又一实施例示意图。 与图 6所示方法对应地, 图 7所示方法应用于用户设备侧。本发明提供的 方法可以应用于不同的通信网络系统, 包括但不限于 SAE/LTE 网络、 UMTS 网络、 CDMA网络等。 用户设备对端的核心网节点设备包括但不限于 MME、 SGSN或者是移动交换中心 MSC, 在此不进行限定。 例如, 对于 SAE/LTE网 络而言, 其核心网节点设备可以是 MME, 无线接入节点设备可以是 eNB; 对 于 UMTS网络而言, 其核心网节点设备可以是 SGSN或 MSC, 无线接入节点 设备可以是 RNC或者 nodeB。下面以蜂窝网络为 SAE/LTE网络为例进行说明, 其他蜂窝网络可以参照下述实施例实施。
S701, 向核心网节点设备发起跟踪区更新 TAU请求。
用户设备向核心网节点设备发送 TAU请求。所述 TAU请求可以是周期性 的 TAU请求。
S702, 接收核心网节点设备在接收到所述 TAU请求后且确定存在所述用 户设备在节约电量模式时有发往所述用户设备的下行数据的事件时向所述用 户设备发送的指示消息,所述指示消息用于指示所述用户设备在节约电量模式 时, 存在发往所述用户设备的下行数据。
用户设备接收核心网节点设备发送的指示消息。其中, 所述指示消息是在 所述核心网节点设备在接收到用户设备发送的 TAU请求后、 且确定所述用户 设备处于节约电量模式时存在发往所述用户设备的下行数据时,向所述用户设 备发送的。 需要说明的是, 所述核心网节点设备用于当确定有发往用户设备的 下行数据且确定所述用户设备处于节约电量模式时,记录所述用户设备在节约 电量模式时,存在发往所述用户设备的下行数据的事件。 当接收到用户设备发 送的 TAU请求时, 核心网节点设备则会根据记录判断所述用户设备在节约电 量模式时是否有发往所述用户设备的下行数据,如果有, 则向所述用户设备发 送指示消息指示所述用户设备在节约电量模式时有发往所述用户设备的下行 数据。 其中, 所述用户设备接收的指示消息可以是包含用户面指示的 TAU接 受消息、 包含活动指示的 TAU接受消息或者包含 MTC触发指示的 TAU接受 消息, 本发明对指示消息的类型不进行限定。
需要说明的是, 当用户设备接收核心网节点设备发送的指示消息包括: 用 户设备接收核心网节点设备发送的跟踪区更新接受消息,所述消息还用于指示 所述用户设备在接收到所述消息后,发起服务请求建立数据承载。 则所述方法 还包括: 向网络侧发起服务请求以建立数据承载。 在这一实现方式中, 核心 网节点设备在跟踪区更新接受消息指示用户设备建立数据承载。当用户设备接 收到所述指示消息后, 则向网络侧发起数据请求以建立数据承载。 当数据承载 建立后, 用户设备则可以获取所述下行数据。
在另外一种可能的实现方式中, 网络侧在接收到用户设备的 TAU请求, 且确定所述用户设备在节约电量模式时存在发往所述用户设备的下行数据时, 则主动发起数据承载的建立。即所述用户设备接收核心网节点设备发送的指示 消息包括:用户设备接收核心网节点设备经由无线接入节点设备发送的数据承 载建立消息, 则所述方法还包括: 与所述无线接入节点设备建立 RRC承载。 具体实现时,所述核心网节点设备向无线接入节点设备发送初始化用户设备上 下文建立请求消息以建立数据承载,经由无线接入节点设备向所述用户设备发 送的无线资源控制 RRC承载建立消息, 通知用户设备在节约电量模式时存在 发往所述用户设备的下行数据, 所述用户设备与无线接入节点设备建立 RRC 承载。 而后, 无线接入节点设备在建立与所述用户设备的 RRC承载后, 向核 心网节点设备发送初始上下文建立应答消息。当核心网节点设备收到所述初始 上下文建立应答消息后, 向用户设备发送 TAU接受消息。
S703,当根据所述指示消息确定在节约电量模式时存在发往所述用户设备 的下行数据时, 在建立数据承载后获得所述下行数据。
当与网络侧建立数据承载后, 用户设备获得所述下行数据包括: 向网络侧 发送数据报文以获取所述下行数据; 或者,接收网络侧在建立数据承载后发送 的下行数据。
在本发明这一实施例中,当用户设备处于节约电量模式且存在发往所述用 户设备的下行数据时, 核心网节点设备记录所述事件; 当用户设备发起 TAU 请求时,核心网节点根据记录的事件通过指示消息,指示用户设备其在节约电 量模式时有发往所述用户设备的下行数据,以便于所述用户设备在建立数据承 载后获得所述下行数据。 因此, 无论对于用户设备接收到指示消息后建立数据 承载的方式,还是核心网节点设备主动建立数据承载的方式, 均是在有下行数 据到来时才指示用户设备, 从而降低了用户设备与网络侧建立数据承载的频 率, 节省了信令交互且节约了用户设备的电量。
进一步地,在一种可能的实现方式中, 用户设备仅在接收到核心网节点设 备发送的指示消息,根据所述指示消息确定所述用户设备在节约电量模式时存 在发往所述用户设备的下行数据时, 才向网络侧发起数据请求以建立数据承 载。 区别于现有技术中用户设备每次发起 TAU请求均建立数据承载的方式, 本发明实施例提供的方法大大降低了用户设备与网络侧建立数据承载的频率, 节约了信令交互以及用户设备的电量。
更进一步地,在一种可能的实现方式中, 区别于现有技术中用户设备每次 发起 TAU请求均建立数据承载的方式,用户设备发起 TAU请求后并不需要建 立数据承载, 而是由网络侧(例如核心网节点设备)在确定所述用户设备在节 约电量模式时存在发往所述用户设备的下行数据时,主动与用户设备建立数据 承载以便用户设备获取所述下行数据。因此,用户设备也无需在每次发起 TAU 请求均建立数据承载,本发明实施例提供的方法大大降低了用户设备与网络侧 建立数据承载的频率, 节约了信令交互以及用户设备的电量。 再一实施例
下面结合图 8-图 13对本发明的具体实现进行详细地说明, 以下所示实施 例均是图 6或图 7所示实施例的改进或变形。 需要说明的是, 下面以蜂窝网络 为 S AE/LTE网络为例进行说明, 其他蜂窝网络可以参照下述实施例实施。 其 中, 核心网节点设备为 MME, 无线接入节点为 eNB, 终端为 UE。
参见图 8, 为本发明提供的用户设备节约电量的再一实施例示意图。
S801 , 用户设备处于空闲态 ( The UE enters the idle mode ) 时, 服务网关 S-GW收到下行数据, 则发送下行数据通知消息 Downlink Data Notification给 MME。 S802, MME接收服务网关 S-GW发送的下行数据通知消息 Downlink Data Notification, 当确定用户设备处于节约电量模式时, MME记录所述用户设备 在节约电量模式时有发往所述用户设备的下行数据的事件。
可选地, MME可以緩存所述下行数据, 也可以不緩存所述下行数据。 S803 , MME发送下行数据通知确认消息 Downlink Data Notification Ack 给 S-GW, 消息中携带拒绝原因值。
5804 , 用户设备向 MME发起周期性的跟踪区更新请求 TAU request。
5805 , MME向 S-GW发送修改承载请求消息 Modify Bearer Request, 提 供当前用户设备的位置信息等。当 S-GW根据 MME发送的消息判断用户设备 的位置发生变化时, 则执行步骤 S806、 S807; 否则, 执行 S808。
5806, 当用户设备的位置发生变化时, S-GW向 P-GW发送修改承载请求 消息 Modify Bearer Request。
S807, P-GW向 S-GW发送修改承载响应消息 Modify Bearer Response。 S808, S-GW向 MME发送修改承载响应消息 Modify Bearer Response。 S809, MME向用户设备发送跟踪区更新接受消息 TAU accept (携带用户 面指示消息), 并在指示消息中指示用户设备在节约电量时有发往所述用户设 备的下行数据, 并指示所述用户设备需建立数据承载。
S810, 用户设备根据所述指示消息发起服务请求去建立数据承载。
进一步地, 所述用户设备可以在建立数据承载后, 向外部网络服务器发送 数据报文, 查询是否有外部网络服务器触发的业务以获得所述下行业务数据。 也可以等待外部网络服务器向其发送数据。 可选地, 当 MME緩存了下行数据 时, 用户设备也可以从 MME获取所述下行数据。
在本发明这一实施例中, 由 MME在确定用户设备处于节约电量模式且有 发往所述用户设备的下行数据时记录所述事件; 当用户设备发起 TAU请求时, MME根据记录的事件通过指示消息指示用户设备其在节约电量模式时, 存在 发往所述用户设备的下行数据, 并通知用户设备建立数据承载。 这样, 用户设 备仅在接收到 MME发送的指示消息,根据所述指示消息确定所述用户设备在 节约电量模式时存在发往所述用户设备的下行数据时,才向网络侧发起服务请 求以建立数据承载。 区别于现有技术中用户设备每次发起 TAU请求均建立数 据承载的方式,本发明实施例提供的方法大大降低了用户设备与网络侧建立数 据承载的频率, 节约了信令交互以及用户设备的电量。
另一实施例
参见图 9, 为本发明提供的用户设备节约电量的另一实施例示意图。
与实施例七不同的是, 当用户设备发起跟踪区更新请求时, 当 MME发生 了改变时, 则目的移动性管理实体 Target MME在接收到用户设备发起的跟踪 区更新 TAU请求时, 通过上下文请求消息向源移动性管理实体 Source MME 请求所述用户设备的上下文信息; 源移动性管理管理实体 Source MME在上下 文应答消息中指示所述用户设备在节约电量模式时有发往所述用户设备的下 行数据; 目的移动性管理实体 Target MME在跟踪区更新接受消息中指示所述 用户设备在节约电量模式时有发往所述用户设备的下行数据,以指示用户设备 建立数据承载。
S901 ,用户设备在 Source MME下处于空闲态时,服务网关 S-GW收到下 行数据,则发送下行数据通知消息 Downlink Data Notification给 Source MME。
S902, Source MME 接收服务网关 S-GW 发送的下行数据通知消息 Downlink Data Notification, 当确定用户设备处于节约电量模式时, Source MME记录所述用户设备在节约电量模式时有发往所述用户设备的下行数据的 事件。
可选地, Source MME可以緩存所述下行数据, 也可以不緩存所述下行数 据。
S903 , Source MME发送下行数据通知确认消息 Downlink Data Notification Ack给 S-GW, 消息中携带拒绝原因值。
S904 , 用户设备发起周期性的跟踪区更新请求 TAU request 至 Target
MME。当用户设备发起 TAU Request时, MME已由 Source MME改变为 Target MME。 这时用户设备发送的请求中携带临时 ID, 里面包含 Source MME ID。
S905 , Target MME通过上下文清求消息 context Request向 Source MME 请求用户设备的上下文信息。 当 Target MME通过用户设备发送的 TAU请求确定其 MME发生改变时, 则向 Source MME发送上下文请求消息请求用户设备的上下文信息。 例如, Target MME通过用户设备发送的 TAU请求中携带的临时 ID (包含 Source MME ID )确定 MME发生改变,则根据所述临时 ID确定用户设备对应的 Source MME, 并向所述 Source MME发起上下文请求消息以向 Source MME请求所 述用户设备的上下文信息。
S906, Source MME向 Target MME发送上下文应答消息, 在所述上下文 应答消息中携带用户面指示,指示用户设备需建立数据承载, 即在节约电量模 式时有发往用户设备的下行数据。
S907 , Target MME 向 S-GW 发送爹改 载请求消息 Modify Bearer
Request, 提供当前用户设备的位置信息等。 当 S-GW根据 Target MME发送的 消息判断用户设备的位置发生变化时, 则执行步骤 S908、 S909; 否则, 执行 S910。
5908, 当用户设备的位置发生变化时, S-GW向 P-GW发送修改承载请求 消息 Modify Bearer Request。
5909, P-GW向 S-GW发送修改承载响应消息 Modify Bearer Response。
5910, S-GW向 MME发送修改承载响应消息 Modify Bearer Response。
5911 , Target MME向用户设备发送跟踪区更新接受消息 TAU accept, 并 在指示消息中指示用户设备在节约电量时有发往所述用户设备的下行数据,并 指示所述用户设备需建立数据承载。
5912, 用户设备根据所述指示消息发起服务请求去建立数据承载。
进一步地, 所述用户设备可以在建立数据承载后, 向外部网络服务器发送 数据报文, 查询是否有外部网络服务器触发的业务以获得所述下行业务数据。 也可以等待外部网络服务器向其发送数据。 可选地, 当 Source MME緩存了下 行数据时, 用户设备也可以从 Source MME获取所述下行数据。
在本发明这一实施例中,由 Source MME在确定用户设备处于节约电量模 式且有发往所述用户设备的下行数据时记录所述事件; 当用户设备发起 TAU 请求时, Source MME根据记录的事件通过上下文应答消息中指示用户设备其 在节约电量模式时有发往所述用户设备的下行数据,并通知用户设备建立数据 承载。 这样, 用户设备仅在接收到 MME发送的指示消息, 根据所述指示消息 确定所述用户设备在节约电量模式时有发往所述用户设备的下行数据时,才向 网络侧发起服务请求以建立数据承载。 区别于现有技术中用户设备每次发起 TAU请求均建立数据承载的方式, 本发明实施例提供的方法大大降低了用户 设备与网络侧建立数据承载的频率, 节约了信令交互以及用户设备的电量。 再一实施例
参见图 10, 为本发明提供的用户设备节约电量的方法再一实施例示意图。 本发明这一实施例与前两个实施例不同的是,服务网关在向 MME发送的 下行数据通知消息中携带下行数据的源地址, MME根据该地址信息判断是否 该下行数据来自用户设备的外部网络服务器,只有来自外部网络服务器的下行 数据才在指示消息中指示用户设备,从而避免了非来自服务器的报文导致用户 设备建立数据承载。
51001 , 用户设备处于空闲态时, 服务网关 S-GW收到下行数据, 则发送 下行数据通知消息 Downlink Data Notification给 MME。 其中, 所述下行数据 通知消息中携带下行数据的源 IP地址。
51002, MME接收服务网关 S-GW发送的下行数据通知消息 Downlink Data Notification, 当确定用户设备处于节约电量模式时, MME根据所述下行 数据的源 IP 地址判断所述下行数据是否来自所述用户设备的外部网络服务 器。如果是,则执行步骤 S1003记录所述用户设备在节约电量模式时有下行数 据到来的事件并在接收到所述用户设备发起的跟踪区更新 TAU请求时向所述 用户设备发送指示消息。 如果否, 则不触发执行步骤 S 1003, 即不触发执行记 录所述用户设备在节约电量模式时有下行数据到来的事件的操作。或者不触发 执行向所述用户设备发送指示消息的操作。
S 1003, 当 MME数据的源 IP地址判断所述下行数据来自所述用户设备的 外部网络服务器时,则记录所述用户设备在节约电量模式时有发往所述用户设 备的下行数据的事件。
可选地, MME可以緩存所述下行数据, 也可以不緩存所述下行数据。 S 1004, MME发送下行数据通知确认消息 Downlink Data Notification Ack 给 S-GW, 消息中携带拒绝原因值。
S1005, 用户设备向 MME发起周期性的跟踪区更新请求 TAU request。 S1006, MME向 S-GW发送修改承载请求消息 Modify Bearer Request, 提 供当前用户设备的位置信息等。当 S-GW根据 MME发送的消息判断用户设备 的位置发生变化时, 则执行步骤 S1007、 S1008; 否则, 执行 S1009。
51007, 当用户设备的位置发生变化时, S-GW向 P-GW发送修改承载请 求消息 Modify Bearer Request。
51008, P-GW向 S-GW发送修改承载响应消息 Modify Bearer Response。 S1009, S-GW向 MME发送修改承载响应消息 Modify Bearer Response。 S1010, MME向用户设备发送跟踪区更新接受消息 TAU accept, 并在指 示消息中指示用户设备在节约电量时有发往所述用户设备的下行数据,并指示 所述用户设备需建立数据承载。
S 1011, 用户设备根据所述指示消息发起服务请求去建立数据承载。
进一步地, 所述用户设备可以在建立数据承载后, 向外部网络服务器发送 数据报文, 查询是否有外部网络服务器触发的业务以获得所述下行业务数据。 也可以等待外部网络服务器向其发送数据。 可选地, 当 MME緩存了下行数据 时, 用户设备也可以从 MME获取所述下行数据。
在本发明这一实施例中,当判断服务网关发送的下行数据通知消息携带下 行数据的源地址时, MME根据所述下行数据的源地址判断所述下行数据是否 来自所述用户设备的外部网络服务器; 如果是, 则记录所述用户设备在节约电 量模式时有下行数据到来的事件并在接收到所述用户设备发起的跟踪区更新 TAU请求时向所述用户设备发送指示消息; 如果否, 则不触发执行记录所述 用户设备在节约电量模式时有下行数据到来的事件的操作或者则不触发执行 向所述用户设备发送指示消息的操作。 由此, 只有下行数据来自用户设备的外 部网络服务器时才指示用户设备建立数据承载,从而避免了非来自服务器的报 文导致用户设备建立数据承载。 另一实施例
参见图 11, 为本发明提供的用户设备节约电量的方法另一实施例示意图。 本发明这一实施例与前几个实施例不同的是,服务网关在向 MME发送的 下行数据通知消息中携带下行数据的源地址, MME在向用户设备发送的指示 消息中包含所述下行数据的源地址,从而使得用户设备根据该地址信息判断是 否该下行数据来自用户设备的外部网络服务器,只有来自外部网络服务器的下 行数据时用户设备才发起服务请求以建立数据承载,从而避免了非来自服务器 的报文导致用户设备建立数据承载。
S1101 , 用户设备处于空闲态时, 服务网关 S-GW收到下行数据, 则发送 下行数据通知消息 Downlink Data Notification给 MME。 其中, 所述下行数据 通知消息中携带下行数据的源 IP地址。
S 1102, MME接收服务网关 S-GW发送的下行数据通知消息 Downlink Data
Notification, 当确定用户设备处于节约电量模式时, 记录所述用户设备在节约 电量模式时有发往所述用户设备的下行数据的事件。
可选地, MME可以緩存所述下行数据, 也可以不緩存所述下行数据。
51103 , MME发送下行数据通知确认消息 Downlink Data Notification Ack 给 S-GW, 消息中携带拒绝原因值。
51104, 用户设备向 MME发起周期性的跟踪区更新请求 TAU request 0
51105 , MME向 S-GW发送修改承载请求消息 Modify Bearer Request, 提 供当前用户设备的位置信息等。当 S-GW根据 MME发送的消息判断用户设备 的位置发生变化时, 则执行步骤 S1106、 S 1107; 否则, 执行 S1108。
S 1106, 当用户设备的位置发生变化时, S-GW向 P-GW发送修改承载请 求消息 Modify Bearer Request。
51107 , P-GW向 S-GW发送修改承载响应消息 Modify Bearer Response。
51108, S-GW向 MME发送修改承载响应消息 Modify Bearer Response。
S 1109, MME向用户设备发送跟踪区更新接受消息 TAU accept, 在所述 消息中包含所述下行数据的源地址,并在指示消息中指示用户设备在节约电量 时有发往所述用户设备的下行数据。可选地,在所述消息中指示所述用户设备 需建立数据承载。
S 1110, 用户设备根据所述下行数据的源地址判断所述下行数据是否来自 所述用户设备的外部网络服务器, 如果是, 则执行 S 1111 ; 如果否, 则不执行 smi。
sun, 用户设备根据所述指示消息发起服务请求去建立数据承载。
进一步地, 所述用户设备可以在建立数据承载后, 向外部网络服务器发送 数据报文, 查询是否有外部网络服务器触发的业务以获得所述下行业务数据。 也可以等待外部网络服务器向其发送数据。 可选地, 当 MME緩存了下行数据 时, 用户设备也可以从 MME获取所述下行数据。
在本发明这一实施例中,当服务网关发送的下行数据通知消息携带下行数 据的源地址时, MME在向用户设备发送的指示消息中携带所述下行数据的源 地址,由用户设备根据所述下行数据的源地址判断所述下行数据是否来自所述 用户设备的外部网络服务器; 如果是, 用户设备则发起服务请求以建立数据承 载。 如果否, 则不建立数据承载, 从而避免了非来自服务器的报文导致用户设 备建立数据承载。 又一实施例
参见图 12, 为本发明提供的用户设备节约电量的方法又一实施例示意图。 其中, 图 12所述的 IWF ( Inter Working Facility ) 为互通设备, HSS为家 乡签约服务器, Server为外部网络服务器。
S1201 , 外部网络服务器发送 MTC ( Machine Type Communication机器 类型通信) 消息给 IWF实体, 在所述消息中指明外部网络服务器的地址与用 户设备的外部标识。
S 1202, IWF通过 HSS查询到用户设备的内部标识以及当前所在的 MME。 SI 203, IWF发送 MTC触发消息 MTC Trigger给 MME, 指明外部网络服 务器的地址。
S1204, MME接收包含外部网络服务器地址信息的 MTC触发消息, 当确 定用户设备处于节约电量模式时, MME记录所述用户设备在节约电量模式时 有发往所述用户设备的下行数据的事件。
S1205, 用户设备向 MME发起周期性的跟踪区更新请求 TAU request。 图 12所示实施例中省略了 MME在接收到 UE发送的 TAU请求后, 与网 关的交互流程, 具体实现可参照前几个实施例实现, 在此不再赘述。 S1206, MME向用户设备发送跟踪区更新接受消息 TAU accept, 并在指 示消息( MTC trigger )中指示用户设备在节约电量时有发往所述用户设备的下 行数据, 并指示所述用户设备需建立数据承载。 其中, 所述消息还携带外部网 络服务器地址信息。
S1207 , 用户设备根据所述指示消息发起服务请求去建立数据承载。
进一步地, 所述用户设备可以在建立数据承载后,根据外部网络服务器的 地址信息向外部网络服务器发送数据报文,查询是否有外部网络服务器触发的 业务以获得所述下行业务数据。 也可以等待外部网络服务器向其发送数据。
在本发明这一实施例中, 当 MME接收到包含外部网络服务器地址信息的 MTC触发消息时, 则确定有发往用户设备的下行数据, 并在确定用户设备处 于节约电量模式记录所述事件; 当用户设备发起 TAU请求时, MME根据记录 的事件通过指示消息指示用户设备其在节约电量模式时有发往所述用户设备 的下行数据,并通知用户设备建立数据承载。这样,用户设备仅在接收到 MME 发送的指示消息,根据所述指示消息确定所述用户设备在节约电量模式时有发 往所述用户设备的下行数据时, 才向网络侧发起服务请求以建立数据承载。 区 别于现有技术中用户设备每次发起 TAU请求均建立数据承载的方式, 本发明 实施例提供的方法大大降低了用户设备与网络侧建立数据承载的频率,节约了 信令交互以及用户设备的电量。 又一实施例
参见图 13, 为本发明提供的用户设备节约电量的方法又一实施例示意图。 与前几个实施例不同的是,在本发明这一实施例中,是由核心网节点设备 MME建立数据承载, 而不是指示用户设备建立数据承载。
51301 , 用户设备处于空闲态时, 服务网关 S-GW收到下行数据, 则发送 下行数据通知消息 Downlink Data Notification给 MME。
51302, MME接收服务网关 S-GW发送的下行数据通知消息 Downlink Data Notification, 当确定用户设备处于节约电量模式时, MME记录所述用户 设备在节约电量模式时有发往所述用户设备的下行数据的事件。可选地, MME 可以緩存所述下行数据, 也可以不緩存所述下行数据。 S1303, MME发送下行数据通知确认消息 Downlink Data Notification Ack 给 S-GW, 消息中携带拒绝原因值。
51304 , 用户设备向 MME发起周期性的跟踪区更新请求 TAU request。
51305 , MME发起数据面承载的建立流程, 即发送初始化用户设备上下 文建立请求消息给无线接入节点设备 eNB,在所述初始化用户设备上下文建立 请求消息中携带承载信息。
51306 , eNB向所述用户设备发送的无线资源控制 RRC承载建立消息以 通知用户设备所述用户设备在节约电量模式时有发往所述用户设备的下行数 据。
S 1307, 用户设备向 eNB发送 RRC承载响应消息。
51308 , eNB在建立与所述用户设备的 RRC承载后向 MME发送初始上下 文建立应答消息。
51309 , MME向 S-GW发送修改承载请求消息 Modify Bearer Request, 提 供当前用户设备的位置信息等。当 S-GW根据 MME发送的消息判断用户设备 的位置发生变化时, 则执行步骤 S1310、 S 1311 ; 否则, 执行 S1312。
S 1310, 当用户设备的位置发生变化时, S-GW向 P-GW发送修改承载请 求消息 Modify Bearer Request。
S 1311, P-GW向 S-GW发送修改承载响应消息 Modify Bearer Response。 S 1312, S-GW向 MME发送修改承载响应消息 Modify Bearer Response。 S 1313, MME向用户设备发送跟踪区更新接受消息 TAU accept。
进一步地,所述用户设备可以等待外部网络服务器向其发送数据以获得下 行数据。 更进一步地, 如果 MME緩存了下行数据, 也可以在承载建立后, 向 用户设备发送所述下行数据。
更进一步地,当服务网关发送的下行数据通知消息中携带下行数据的源地 址时, MME也可以根据所述下行数据的源地址判断所述下行数据是否来自所 述用户设备的外部网络服务器; 如果是, 则主动建立数据承载流程; 如果否, 仅在接收到 TAU请求时,发送 TAU接受消息, 并不建立与用户设备的数据面 承载。
在本发明这一实施例中, 由 MME在确定用户设备处于节约电量模式且有 发往所述用户设备的下行数据时记录所述事件; 当用户设备发起 TAU请求时, 并由 MME根据记录的事件主动发起数据承载,通过隐形指示消息的方式指示 用户设备其在节约电量模式时有发往所述用户设备的下行数据。这样, 只有在 确定所述用户设备在节约电量模式时有发往所述用户设备的下行数据时, MME才主动建立与用户设备的数据承载, 区别于现有技术中用户设备每次发 起 TAU请求均建立数据承载的方式, 本发明实施例提供的方法大大降低了用 户设备与网络侧建立数据承载的频率, 节约了信令交互以及用户设备的电量。
需要说明的是, 本发明上述实施例的各个步骤并不是必需的,仅为示例性 说明。 上述实施例也可以通过改动、 变形、 组合的方式得到其他实施例, 均属 于本发明的保护范围。
本领域普通技术人员可以理解,实现上述实施例的方法的过程可以通过程 序指令相关的硬件来完成, 所述的程序可以存储于可读取存储介质中, 该程序 在执行时执行上述方法中的对应步骤。 所述的存储介质可以如: ROM/RAM、 磁碟、 光盘等。 以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通 技术人员来说, 在不脱离本发明原理的前提下, 还可以做出若干改进和润饰, 这些改进和润饰也应视为本发明的保护范围。
+

Claims

权 利 要 求
1、 一种核心网节点设备, 其特征在于, 所述设备包括:
记录单元,用于当确定存在发往用户设备的下行数据且确定所述用户设备 处于节约电量模式时,记录所述用户设备在节约电量模式时,存在发往所述用 户设备的下行数据的事件;
接收单元, 用于接收所述用户设备发起的跟踪区更新 TAU请求; 发送单元, 用于当接收到所述接收单元接收的所述用户设备发起的 TAU 请求且确定所述记录单元存在所述用户设备在节约电量模式时有发往用户设 备的下行数据的事件时, 向所述用户设备发送指示消息, 所述指示消息用于指 示所述用户设备在节约电量模式时,存在发往所述用户设备的下行数据, 以便 于所述用户设备在建立数据承载后获得所述下行数据。
2、 根据权利要求 1所述的设备, 其特征在于, 所述接收单元还用于: 接收网关发送的下行数据通知消息; 或者,接收包含外部网络服务器地址 信息的机器类型通信 MTC触发消息;
则所述设备还包括确定单元, 用于:
当接收到所述接收单元接收的网关发送的下行数据通知消息时,确定存在 发往用户设备的下行数据; 或者, 当接收到所述接收单元接收的包含外部网络 服务器地址信息的 MTC触发消息时, 确定存在发往用户设备的下行数据。
3、 根据权利要求 1或 2所述的设备, 其特征在于, 所述发送单元具体用 于:
当接收到所述接收单元接收的用户设备发起的 TAU请求时,发送 TAU接 受消息, 所述 TAU接受消息用于通知用户设备在节约电量模式时, 存在发往 所述用户设备的下行数据, 并指示所述用户设备在接收到所述 TAU接受消息 后, 发起服务请求建立数据承载。
4、 根据权利要求 2所述的设备, 其特征在于, 所述设备还包括: 判断单元,用于当所述确定单元根据所述接收单元接收的下行数据通知消 息确定有发往用户设备的下行数据且所述下行数据通知消息携带下行数据的 源地址时,根据所述下行数据的源地址判断是否存在来自所述用户设备的外部 网络服务器的下行数据; 外部网络服务器的下行数据时,记录所述用户设备在节约电量模式时,存在下 行数据到来的事件。
5、 根据权利要求 4所述的设备, 其特征在于, 则所述记录单元还用于: 备的外部网络服务器的下行数据,则不触发执行记录所述用户设备在节约电量 模式时, 存在下行数据到来的事件的操作;
则所述发送单元还用于: 备的外部网络服务器的下行数据时,则不触发执行向所述用户设备发送指示消 息的操作。
6、 根据权利要求 2所述的设备, 其特征在于, 所述发送单元具体用于: 当所述确定单元根据所述接收单元接收的下行数据通知消息确定有发往 用户设备的下行数据且所述下行数据通知消息携带下行数据的源地址时,向所 述用户设备发送包含所述下行数据的源地址的指示消息,所述指示消息用于指 示所述用户设备根据所述下行数据的源地址判断所述下行数据是否来自所述 用户设备的外部网络服务器,以确定所述用户设备是否发起服务请求以建立数 据承载。
7、 根据权利要求 1至 6任意一项所述的设备, 其特征在于, 所述记录单 元具体用于:当所述核心网节点设备为源移动性管理实体 MME时,由源 MME 记录所述用户设备在节约电量模式时,存在发往所述用户设备的下行数据的事 件;
则所述发送单元具体用于:
由源 MME接收目的 MME在接收到用户设备发起的 TAU请求时, 向所 述源 MME发送的上下文请求消息, 所述上下文请求消息用于向所述源 MME 请求所述用户设备的上下文信息; 以及, 由所述源 MME向所述目的 MME发送上下文应答消息, 所述上下 文应答消息用于指示所述目的 MME在节约电量模式时存在发往所述用户设 备的下行数据, 以便所述目的 MME在接收到所述上下文应答消息后, 向所 述用户设备发送 TAU接受消息,所述 TAU接受消息用于指示所述用户设备在 节约电量模式时, 存在发往所述用户设备的下行数据。
8、 根据权利要求 1至 7任意一项所述的设备, 其特征在于, 所述发送单 元发送的指示消息为包含用户面指示的 TAU接受消息、 包含活动指示的 TAU 接受消息或者包含 MTC触发指示的 TAU接受消息。
9、 根据权利要求 1所述的设备, 其特征在于, 所述发送单元具体用于: 当接收到所述接收单元接收的所述用户设备发起的 TAU请求时, 发送初 始化用户设备上下文建立请求消息,以建立数据承载并通知用户设备在节约电 量模式时, 存在发往所述用户设备的下行数据。
10、 根据权利要求 9所述的设备, 其特征在于, 所述发送单元具体用于: 向无线接入节点设备发送初始化用户设备上下文建立请求消息以建立数 据承载, 经由无线接入节点设备向所述用户设备发送的无线资源控制 RRC承 载建立消息, 用于通知用户设备在节约电量模式时,存在发往所述用户设备的 下行数据;
则所述设备还包括:
应答消息接收单元,用于接收所述无线接入节点设备在建立与所述用户设 备的 RRC承载后, 发送的初始上下文建立应答消息。
11、 根据权利要求 10所述的设备, 其特征在于, 所述发送单元还用于: 在接收到所述应答消息接收单元接收的所述无线接入节点设备发送的初 始上下文建立应答消息后, 向所述用户设备发送 TAU接受消息。
12、 一种用户设备, 其特征在于, 包括:
请求单元, 用于向核心网节点设备发起 TAU请求;
指示消息接收单元,用于接收核心网节点设备在接收到所述请求单元发送 的 TAU请求后且确定所述用户设备在节约电量模式时存在发往用户设备的下 行数据的事件时, 向所述用户设备发送的指示消息, 所述指示消息用于指示所 述用户设备在节约电量模式时,存在发往所述用户设备的下行数据; 数据获得 单元, 用于根据所述指示消息接收单元接收到的所述指示消息,确定在节约电 量模式时存在发往所述用户设备的下行数据时,在建立数据承载后获得所述下 行数据。
13、 根据权利要求 12所述的设备, 其特征在于, 所述指示消息接收单元 具体用于:
接收核心网节点设备发送的 TAU接受消息,所述 TAU接受消息还用于指 示所述用户设备在接收到所述 TAU接受消息后,发起服务请求建立数据承载; 则所述设备还包括:
服务请求单元,用于当接收到所述指示消息接收单元接收的核心网节点设 备发送的 TAU接受消息后, 向网络侧发起服务请求以建立数据承载。
14、 根据权利要求 13所述的设备, 其特征在于, 所述设备还包括: 判断单元, 用于当所述指示消息接收单元接收的 TAU接受消息包含所述 下行数据的源地址时,根据所述下行数据的源地址判断所述下行数据是否来自 所述用户设备的外部网络服务器;
则所述服务请求单元具体用于当所述判断单元判断所述下行数据来自所 述用户设备的外部网络服务器时, 向网络侧发起服务请求以建立数据承载。
15、 根据权利要求 12所述的设备, 其特征在于, 所述指示消息接收单元 具体用于:
接收核心网节点设备经由无线接入节点设备发送的数据承载建立消息; 则所述设备还包括:
RRC承载建立单元, 用于在接收到所述指示消息接收单元接收的数据承 载建立消息后, 与所述无线接入节点设备建立 RRC承载。
16、 根据权利要求 12至 15任意一项所述的设备, 其特征在于, 所述数据 获得单元具体用于:
在确定与网络侧建立数据承载后,向网络侧发送数据报文以获取所述下行 数据; 或者, 在确定与网络侧建立数据承载后, 接收网络侧在建立数据承载后 发送的下行数据。
17、 一种用户设备节约电量的方法, 其特征在于, 所述方法应用于核心网 节点设备, 包括:
当确定存在发往用户设备的下行数据且确定所述用户设备处于节约电量 模式时,记录所述用户设备在节约电量模式时,存在发往所述用户设备的下行 数据的事件;
当接收到所述用户设备发起的跟踪区更新 TAU请求且确定所述用户设备 在节约电量模式时存在发往用户设备的下行数据的事件时,向所述用户设备发 送指示消息, 所述指示消息用于指示所述用户设备在节约电量模式时,存在发 往所述用户设备的下行数据,以便于所述用户设备在建立数据承载后获得所述 下行数据。
18、 根据权利要求 17所述的方法, 其特征在于, 所述方法还包括: 接收网关发送的下行数据通知消息; 或者,接收包含外部网络服务器地址 信息的机器类型通信 MTC触发消息;
则所述确定存在发往用户设备的下行数据包括:
当接收到网关发送的下行数据通知消息时,确定存在发往用户设备的下行 数据; 或者,
当接收到包含外部网络服务器地址信息的 MTC触发消息时, 确定存在发 往用户设备的下行数据。
19、 根据权利要求 17或 18所述的方法, 其特征在于, 所述当接收到所述 用户设备发起的跟踪区更新 TAU请求时, 向所述用户设备发送指示消息, 所 述指示消息用于指示所述用户设备在节约电量模式时,存在发往所述用户设备 的下行数据包括:
当接收到所述用户设备发起的 TAU请求时, 发送 TAU接受消息, 所述 TAU接受消息用于通知用户设备在节约电量模式时, 存在发往所述用户设备 的下行数据, 并指示所述用户设备在接收到所述 TAU接受消息后, 发起服务 请求建立数据承载。
20、 根据权利要求 18所述的方法, 其特征在于, 所述方法还包括: 在接收到网关发送的下行数据通知消息,确定有发往用户设备的下行数据 后, 当确定所述下行数据通知消息携带下行数据的源地址时,根据所述下行数 据的源地址判断是否存在来自所述用户设备的外部网络服务器的下行数据;如 果是, 则记录所述用户设备在节约电量模式时有下行数据到来的事件。
21、 根据权利要求 20的方法, 其特征在于, 所述方法还包括:
当根据所述下行数据的源地址判断不存在来自所述用户设备的外部网络 服务器的下行数据时, 则不触发执行记录所述用户设备在节约电量模式时,存 在下行数据到来的事件的操作或者则不触发执行向所述用户设备发送指示消 息的操作。
22、 根据权利要求 18所述的方法, 其特征在于, 当所述下行数据通知消 息携带下行数据的源地址时, 所述向所述用户设备发送指示消息包括:
向所述用户设备发送包含所述下行数据的源地址的指示消息,所述指示消 息用于所述用户设备根据所述下行数据的源地址判断所述下行数据是否来自 所述用户设备的外部网络服务器,以确定所述用户设备是否发起服务请求以建 立数据承载。
23、 根据权利要求 17至 21任意一项所述的方法, 其特征在于, 当所述核 心网节点设备为源移动性管理实体 MME时,所述记录所述用户设备在节约电 量模式时有发往所述用户设备的下行数据的事件包括:
源 MME记录所述用户设备在节约电量模式时,存在发往所述用户设备的 下行数据的事件;
则所述当接收到所述用户设备发起的跟踪区更新 TAU请求且确定存在所 述用户设备在节约电量模式时有发往用户设备的下行数据的事件时,向所述用 户设备发送指示消息, 所述指示消息用于指示所述用户设备在节约电量模式 时, 存在发往所述用户设备的下行数据包括:
源 MME接收目的 MME在接收到用户设备发起的 TAU请求时, 向所述 源 MME发送的上下文请求消息, 所述上下文请求消息用于向源 MME请求所 述用户设备的上下文信息;
以及, 所述源 MME向所述目的 MME发送上下文应答消息, 所述上下文 应答消息用于指示所述目的 MME在节约电量模式时存在发往所述用户设备 的下行数据, 以便所述目的 MME在接收到所述上下文应答消息后, 向所述用 户设备发送 TAU接受消息,所述 TAU接受消息用于指示所述用户设备在节约 电量模式时存在发往所述用户设备的下行数据。
24、 根据权利要求 17至 23任意一项所述的方法, 其特征在于, 所述指示 消息具体为包含用户面指示的 TAU接受消息、包含活动指示的 TAU接受消息 或者包含 MTC触发指示的 TAU接受消息。
25、 根据权利要求 17所述的方法, 其特征在于, 所述当接收到所述用户 设备发起的跟踪区更新 TAU请求时, 向所述用户设备发送指示消息指示所述 用户设备在节约电量模式时有发往所述用户设备的下行数据包括:
当接收到所述用户设备发起的 TAU请求时, 发送初始化用户设备上下文 建立请求消息,以建立数据承载并通知用户设备在节约电量模式时存在发往所 述用户设备的下行数据。
26、 根据权利要求 25所述的方法, 其特征在于, 所述发送初始化用户设 备上下文建立请求消息以建立数据承载并通知用户设备所述用户设备在节约 电量模式时有发往所述用户设备的下行数据包括:
向无线接入节点设备发送初始化用户设备上下文建立请求消息以建立数 据承载, 经由无线接入节点设备向所述用户设备发送的无线资源控制 RRC承 载建立消息,通知用户设备在节约电量模式时,存在发往所述用户设备的下行 数据;
则所述方法还包括:
接收所述无线接入节点设备在建立与所述用户设备的 RRC承载后, 发送 的初始上下文建立应答消息。
27、 根据权利要求 26所述的方法, 其特征在于, 所述方法还包括: 在接收到所述无线接入节点设备发送的初始上下文建立应答消息后,向所 述用户设备发送 TAU接受消息。
28、 一种用户设备节约电量的方法, 其特征在于, 所述方法应用于用户设 备, 包括:
向核心网节点设备发起 TAU请求; 接收核心网节点设备在接收到所述 TAU请求后且确定存在所述用户设备 在节约电量模式时有发往所述用户设备的下行数据的事件时向所述用户设备 发送的指示消息,所述指示消息用于指示所述用户设备在节约电量模式时存在 发往所述用户设备的下行数据;
当根据所述指示消息确定在节约电量模式时存在发往所述用户设备的下 行数据时, 在建立数据承载后获得所述下行数据。
29、 根据权利要求 28所述的方法, 其特征在于, 所述接收核心网节点设 备发送的指示消息包括:
接收核心网节点设备发送的 TAU接受消息,所述 TAU接受消息还用于指 示所述用户设备在接收到所述 TAU接受消息后,发起服务请求建立数据承载; 则所述方法还包括:
在接收到所述核心网节点设备发送的 TAU接受消息后, 向网络侧发起服 务请求以建立数据承载。
30、 根据权利要求 29所述的方法, 其特征在于, 当所述 TAU接受消息包 含所述下行数据的源地址时, 在向网络侧发起服务请求以建立数据承载之前, 所述方法还包括:
根据所述下行数据的源地址判断所述下行数据是否来自所述用户设备的 外部网络服务器;
如果是, 则向网络侧发起服务请求以建立数据承载。
31、 根据权利要求 28所述的方法, 其特征在于, 所述接收核心网节点设 备发送的指示消息包括:
接收核心网节点设备经由无线接入节点设备发送的数据承载建立消息; 则所述方法还包括:
在接收到所述数据承载建立消息后, 与所述无线接入节点设备建立 RRC 承载。
32、 根据权利要求 28至 31任意一项所述的方法, 其特征在于, 所述在建 立数据承载后获得所述下行数据包括:
在确定与网络侧建立数据承载后,向网络侧发送数据报文以获取所述下行 数据; 或者 在确定与网络侧建立数据承载后,接收网络侧在建立数据承载后发送的下 行数据。
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RU2667051C2 (ru) 2018-09-13
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US20170078968A1 (en) 2017-03-16
RU2016149621A (ru) 2018-06-22
BR112016027177A2 (zh) 2017-08-15
AU2018214080B2 (en) 2019-10-31
EP3139677A4 (en) 2017-06-14
CN105325041A (zh) 2016-02-10
US10299211B2 (en) 2019-05-21
EP3139677A1 (en) 2017-03-08
BR122017010678A2 (pt) 2019-09-03
EP3139677B1 (en) 2019-09-04
BR112016027177A8 (pt) 2021-07-13
EP3634045A1 (en) 2020-04-08
CN105325041B (zh) 2020-07-21
RU2016149621A3 (zh) 2018-06-22

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