WO2013079036A1 - Procédé pour contrôler la libération de ressources radio et dispositif d'accès - Google Patents

Procédé pour contrôler la libération de ressources radio et dispositif d'accès Download PDF

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Publication number
WO2013079036A1
WO2013079036A1 PCT/CN2012/085747 CN2012085747W WO2013079036A1 WO 2013079036 A1 WO2013079036 A1 WO 2013079036A1 CN 2012085747 W CN2012085747 W CN 2012085747W WO 2013079036 A1 WO2013079036 A1 WO 2013079036A1
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Prior art keywords
access device
connection
disconnected
message sent
enb
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PCT/CN2012/085747
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English (en)
Chinese (zh)
Inventor
高慧
解应春
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华为技术有限公司
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Publication of WO2013079036A1 publication Critical patent/WO2013079036A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/30—Connection release

Definitions

  • an evolved base station (eNB, evolved NodeB) allocates system resources (such as a central processing unit, a memory, a power, a spectrum, and the like) to a user equipment (UE, User Equipment) that is connected thereto, so that these The UE performs corresponding communication services.
  • system resources such as a central processing unit, a memory, a power, a spectrum, and the like
  • the eNB releases the system resources allocated for the UE to improve system resources. Utilization.
  • the eNB side radio link control (RLC, Radio Link Control) caches data or signaling Sending to the UE will cause the DRB or the SRB to release the abnormal resource with the maximum number of retransmissions, and the eNB will release the system resources allocated for the UE.
  • RLC Radio Link Control
  • the eNB retransmits data to the UE continuously, and releases the system resources allocated to the UE after the number of retransmissions exceeds the threshold.
  • the eNB hopes that the UE can successfully receive data by continuously retransmitting data to the UE, so a large amount of air interface resources are wasted, and the timeliness of resource release is affected.
  • the embodiments of the present invention provide a resource release control method and an access device, which can save air interface resources and improve timeliness of resource release.
  • An aspect of the present invention provides a resource release control method, including: an access device acquires a connection state of a user equipment UE by real-time detection; and if the connection status indicates that the UE is disconnected, the access device pairs the The UE performs a connection release operation.
  • an access device including: an acquiring unit, configured to pass real-time Detecting a connection state of the user equipment UE, and a releasing unit, configured to perform a connection release operation on the UE when the connection status acquired by the acquiring unit indicates that the UE has been disconnected.
  • the embodiments of the present invention have the following advantages:
  • the access device obtains the connection status of the UE through real-time detection, so as to know whether the UE has been disconnected from the connection, and if it is determined that the UE has been disconnected, the access device may directly perform a connection release operation on the UE, because The access device detects the connection status of the UE in real time, and does not delay the detection of the connection status of the UE by the maximum attempted mode of retransmitting data, so the data retransmitted by the access device to the UE can be reduced, thereby saving air interface resources, and Improve the timeliness of resource release.
  • FIG. 1 is a schematic diagram of an embodiment of a resource release control method according to the present invention
  • FIG. 2 is a schematic diagram of another embodiment of a resource release control method according to the present invention.
  • FIG. 3 is a schematic diagram of another embodiment of a resource release control method according to the present invention.
  • FIG. 4 is a schematic diagram of another embodiment of a resource release control method according to the present invention.
  • FIG. 5 is a schematic diagram of another embodiment of a resource release control method according to the present invention.
  • FIG. 6 is a schematic diagram of another embodiment of a resource release control method according to the present invention.
  • FIG. 7 is a schematic diagram of an embodiment of an access device according to the present invention.
  • FIG. 8 is a schematic diagram of another embodiment of an access device according to the present invention.
  • FIG. 9 is a schematic diagram of another embodiment of an access device according to the present invention.
  • FIG. 10 is a schematic diagram of another embodiment of an access device according to the present invention.
  • FIG. 11 is a schematic diagram of another embodiment of an access device according to the present invention.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • FDMA Frequency Division Multiple Addressing
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE Long Term Evolut
  • the user equipment which may be a wireless terminal or a wired terminal, may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or other processing device connected to the wireless modem.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • a wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station e.g., an access point
  • the base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station can be a base station in GSM or CDMA (BTS, Base Transceiver)
  • the eNB may be a base station (NodeB) in WCDMA, or may be an evolved base station (NodeB or eNB or e-NodeB, evolutiona Node B) in LTE, which is not limited in the present invention.
  • the base station controller may be a base station controller (BSC) in GSM or CDMA, or may be a radio network controller (RNC) in WCDMA, which is not limited by the present invention. .
  • BSC base station controller
  • RNC radio network controller
  • system and “network” are often used interchangeably herein.
  • the term “and/or” in this context is merely an association that describes the associated object, indicating that there can be three relationships, for example, A and / or B, which can mean: A exists separately, and both A and B exist, exist alone B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the embodiment of the invention provides a resource release control method and an access device, which can save air interface resources and improve the timeliness of resource release.
  • an embodiment of a resource release control method of the present invention includes:
  • the access device acquires a connection status of the UE by using real-time detection.
  • the access device can obtain the connection status of the UE in its own service range by real-time detection.
  • the specific real-time detection manner may be: monitoring the information of the physical uplink channel, or receiving the message sent by the UE or other network element, and the detailed process will be described in the following embodiments.
  • connection status indicates that the UE is disconnected
  • the access device performs a connection release operation on the UE.
  • the access device After the access device obtains the connection status of the UE by real-time detection, if the connection status is found to indicate that the UE has been disconnected, the UE does not receive the downlink information sent by the access device, and the access device may The UE performs a connection release operation to release related system resources.
  • the access device obtains the connection status of the UE through real-time detection, so as to know whether the UE has been disconnected from the connection. If the UE is determined to be disconnected from the connection, the access device may directly perform a connection release operation on the UE.
  • the inbound device can detect the connection status of the UE in real time, instead of delaying the detection of the connection status of the UE by retrying the data, so the data retransmitted by the access device to the UE can be reduced, thereby saving air interface resources and improving resources. Timeliness of release.
  • the access device in this embodiment may be an eNB, or may be a wireless access point (AP, Acces s Point), or may be another type of device having an access function.
  • the eNB is taken as an example for description.
  • the resource release control method in the embodiment of the present invention is described in detail in several specific embodiments according to different manners of obtaining the connection state of the UE:
  • the physical downlink shared channel (PDSCH) in the downlink of the eNB to the UE is mainly used for transmitting service data, and the PDCCH is used for transmitting control signaling.
  • PDSCH physical downlink shared channel
  • the eNB transmits downlink information (for example, one data packet) to the UE on the PDSCH, and then monitors the feedback information of the UE on the physical uplink channel. If an acknowledgment (ACK) or a negative acknowledgment (NACK) is detected, the eNB indicates that the UE The data packet has been received or not received. If the eNB does not receive the UE feedback information for the data packet within the preset time range (for example, within 4 milliseconds), that is, ACK or NACK, the eNB records a discontinuous transmission ( DTX, Discontinuous Transmission) Event.
  • ACK acknowledgment
  • NACK negative acknowledgment
  • the physical uplink channel in the embodiment may be a physical uplink control channel (PUCCH, Physical Uplink Control Channel), a physical uplink shared channel (PUSCH), or other types of physical uplink channels. The details are not limited herein.
  • PUCCH Physical Uplink Control Channel
  • PUSCH physical uplink shared channel
  • the feedback information of the UE may be information on the PUCCH, or information in the path-to-path signaling of the PUSCH, or information on other physical uplink channels, that is, the eNB may perform monitoring on the PUCCH. It can also be monitored in the associated channel signaling of the PUSCH, and can also be monitored on other physical uplink channels.
  • the eNB may acquire the connection state of the UE according to the number of consecutive DTX events or the method of starting the timer after detecting the DTX event, which are respectively described below:
  • the eNB acquires the connection status of the UE according to the number of DTX events:
  • another embodiment of the resource release control method of the present invention includes:
  • the access device monitors the feedback information of the UE.
  • the access device in this embodiment may be an eNB, and the downlink information sent may be a data packet.
  • the eNB monitors the feedback information of the UE to confirm the UE's reception of the data packet P1.
  • the access device does not receive the feedback information of the UE for the downlink information within a preset time range, record a DTX event. If the eNB does not detect feedback information (ie, ACK or NACK) of the UE for the data packet P1 within a preset time range (eg, 4 milliseconds) after transmitting the data packet PI to the UE, a DTX event is recorded once.
  • feedback information ie, ACK or NACK
  • step 203 Determine whether the number of consecutive DTX events recorded exceeds a preset threshold, and if yes, execute step 204, if no, perform step 201;
  • the eNB can determine in real time whether the number of consecutive DTX events recorded exceeds a preset threshold. If yes, step 204 is performed. If not, the process returns to step 201.
  • the threshold in this embodiment can be set according to the actual situation. If the timeliness of resource recovery is high, the threshold can be set lower. If the user service stability requirement is high, the threshold can be set. Higher.
  • the access device determines that the UE is disconnected.
  • the eNB determines that the recorded consecutive DTX event exceeds the preset threshold, it indicates that the UE does not feed back the data packet sent by the eNB for a long time, and then it may be determined that the UE has been disconnected, and the disconnection may be caused by the UE.
  • the UE cannot resume normal connections within the preset number of retransmission times specified by the current protocol.
  • the access device releases the system resource allocated to the UE, and stops sending downlink information to the UE.
  • the eNB may immediately release the system resources allocated for the UE, and stop sending any downlink information to the UE, and stop monitoring accordingly.
  • the eNB may acquire the connection status of the UE by monitoring the information of the physical uplink channel, so as to know whether the UE has been disconnected from the connection. If it is determined that the UE has been disconnected, the eNB may directly perform a connection release operation on the UE, because the eNB may The real-time detection of the connection state of the UE is performed, and the connection state of the UE is not detected by the method of retransmitting the data. Therefore, the data retransmitted by the access device to the UE can be reduced, thereby saving air interface resources and improving the timely release of resources. Sex.
  • the eNB obtains the connection status of the UE by starting a timer after detecting the DTX event:
  • the eNB acquires the UE by the number of consecutive DTX events recorded.
  • the eNB may also obtain the connection state of the UE by using a timer after the DTX event is detected.
  • another embodiment of the resource release control method of the present invention includes:
  • the access device monitors the feedback information of the UE.
  • the access device in this embodiment may be an eNB, and the downlink information sent may be a data packet.
  • the eNB monitors the feedback information of the UE to confirm the UE's reception of the data packet P1.
  • the access device If the access device does not receive the feedback information of the UE for the downlink information within a preset time range, record the DTX event.
  • the eNB does not monitor the UE's feedback information (i.e., ACK or NACK) for the data packet P1 within a preset time range (e.g., within 4 milliseconds) after transmitting the data packet P1 to the UE, the DTX event is recorded.
  • ACK or NACK feedback information
  • the eNB may start a timer and continue to wait for uplink information (including uplink data packets or uplink signaling) sent by the UE within the timer range.
  • uplink information including uplink data packets or uplink signaling
  • the range of the timer may be set according to actual conditions. If the timeliness of resource recovery is high, the range of the timer may be set to be shorter, if the stability of the user service is high. , you can set the range of the timer to be longer.
  • step 304 Determine whether the UE receives the uplink information before the timer expires. If yes, go to step 305. If no, go to step 306.
  • the eNB After the eNB starts the timer, it can wait for the uplink information sent by the UE before the timer expires. If the uplink information sent by the UE is received before the timer expires, the UE has not been disconnected. If the timer is not received before the timer expires, The uplink information sent by the UE indicates that the UE has been disconnected.
  • the eNB receives the uplink information sent by the UE before the timer expires, it indicates that the UE has not been disconnected, and the eNB may continue to perform data transmission with the UE.
  • the specific process is not limited herein.
  • the eNB when the eNB receives the uplink information sent by the UE before the timer expires, the eNB also needs to stop the timer and clear the DTX record for the next processing procedure.
  • the access device determines that the UE is disconnected from the connection. If the eNB does not receive the uplink information sent by the UE before the timer expires, the UE is disconnected from the connection. The reason for the disconnection may be that the UE has a cell handover, or the call is dropped, or the card is disconnected, the power is turned off, the radio is turned off, and the like. The scene of normal connection cannot be restored in a short time.
  • the UE cannot resume normal connections within the preset number of retransmission times specified by the current protocol.
  • the access device releases the system resource allocated to the UE, and stops sending downlink information to the UE.
  • the eNB may immediately release the system resources allocated for the UE, and stop sending any downlink information to the UE, and stop monitoring accordingly.
  • the eNB may acquire the connection status of the UE by monitoring the information of the physical uplink channel, so as to know whether the UE has been disconnected from the connection. If it is determined that the UE has been disconnected, the eNB may directly perform a connection release operation on the UE, because the eNB may The real-time detection of the connection state of the UE is performed, and the connection state of the UE is not detected by the method of retransmitting the data. Therefore, the data retransmitted by the access device to the UE can be reduced, thereby saving air interface resources and improving the timely release of resources. Sex.
  • the UE obtains the connection status of the UE by receiving the message sent by the UE or other network element:
  • the eNB can receive the message from the UE or other network element during the communication process, and the eNB can determine the connection status of the UE by determining the type of the message.
  • the eNB acquires the connection status of the UE according to the message sent by the UE:
  • another embodiment of the resource release control method of the present invention includes:
  • the eNB may determine whether a message sent by the UE indicating that the UE has dropped the call is received during the communication process.
  • the message may be a RRC Connec t ion Rees tab l i shment Reque s t message, or a message 3 (MSG3) message in an actual application.
  • the UE sends a radio connection re-establishment request message to request re-establishment after the dropped call under the same eNB.
  • 3GPP 3rd Generation Partnership Project
  • 3rd Genera-Tion Partner shi p Projec 3rd Generation Partnership Project
  • the sending of the MSG3 message by the UE may indicate that the UE re-enters the network after the abnormal call back, such as the call drop, the radio shutdown, and the like.
  • the MSG3 message is defined in the Random Acces s Procedure in the 3GPP protocol 36.331, MSG3
  • the message can be regarded as an uplink message sent by the UE on the PUSCH.
  • the message indicating that the UE has dropped calls may be other types besides the above two types of messages.
  • the message is not limited here.
  • the eNB If the eNB does not receive the message sent by the UE indicating that the UE has dropped the call, the eNB continues to wait, and performs other communication processing procedures, and repeats step 401.
  • the access device determines that the UE is disconnected.
  • the eNB If the eNB receives the message sent by the UE indicating that the UE has dropped the call, it indicates that the UE has detached from the connection, and the disconnection may cause the UE to drop the call.
  • the access device releases system resources allocated to the UE, and stops sending downlink information to the UE.
  • the eNB may immediately release the system resources allocated for the UE, and stop sending any downlink information to the UE.
  • the eNB acquires the connection status of the UE according to the message sent by other network elements:
  • the eNB obtains the connection status of the UE according to the message sent by the UE.
  • the eNB may also obtain the connection status of the UE according to the message sent by the other network element.
  • Another embodiment of the resource release control method includes:
  • the source cell access device determines whether a message sent by another network element indicating that the UE has a cell handover is received, and if yes, step 503 is performed; if not, step 502 is performed;
  • the source cell eNB may determine whether a message sent by another network element indicating that the UE has a cell handover is received during the communication process.
  • the message may be a radio link failure (RLF, Rad io L ink Fa i lure ) indication message sent by the target cell eNB, or a handover report (Handover Repor) message sent by the target cell eNB, or a target cell eNB.
  • RLF radio link failure
  • Handover Repor handover report
  • the RLF indication message sent by the target cell eNB indicates that the radio link is established.
  • the specific process refer to the description of Section 8.3.9 of 3GPP Protocol 36. 423, which is not limited herein.
  • the handover report message sent by the target cell eNB is used to report the information about the cell handover to the source cell eNB.
  • the handover report message sent by the target cell eNB is used to report the information about the cell handover to the source cell eNB.
  • the UE context release message sent by the target cell eNB causes the source cell eNB to release the context resource allocated for the UE.
  • End Marker (End Ma rker ) message sent by the data forwarding gateway is used to indicate that this is the last packet sent to the source cell eNB, and subsequent packets will be sent to the target cell eNB.
  • the handover complete message sent by the different system access device is used to indicate that the UE has switched to a different system cell.
  • the target cell eNB may also enable the source cell eNB to perform a connection release operation on the UE by customizing some new messages, such as a custom release message.
  • the source cell eNB If the source cell eNB does not receive a message sent by another network element indicating that the UE has a cell handover, the source cell eNB continues to wait, and performs other communication processing procedures, and repeats step 501.
  • the access device determines that the UE is disconnected.
  • the source cell eNB may receive a message sent by another network element indicating that the UE has a cell handover, the UE may be disconnected from the connection, and the reason for leaving the connection may be that the UE performs cell handover.
  • the access device releases system resources allocated to the UE, and stops sending downlink information to the UE.
  • the source cell eNB may immediately release the system resources allocated for the UE, and stop sending any downlink information to the UE.
  • the target cell eNB can perform a connection release operation on the UE by customizing some new messages, such as a custom release message.
  • a connection release operation on the UE by customizing some new messages, such as a custom release message.
  • the following describes a specific example. 6.
  • Another embodiment of the resource release control method of the present invention includes:
  • the UE reports a measurement report (Mea s Rp t ) to the source cell access device.
  • the UE may send a measurement to the source cell eNB, where the measurement report may carry measurement information after the UE performs measurement on the signal strength, the neighboring cell eNB, and the like.
  • the specific content is not limited here.
  • the source cell access device sends a handover command (H0-CMD) to the UE.
  • H0-CMD handover command
  • the eNB After receiving the measurement report sent by the UE, the eNB determines whether the cell handover condition is met according to the content of the measurement report. If yes, the source cell eNB may send a handover command to the UE to indicate that the UE performs cell handover.
  • the process of determining whether the cell handover condition is met by the source cell eNB according to the content of the measurement report is common knowledge of those skilled in the art, and is not limited herein.
  • the UE successfully switches to the target cell, or the handover fails, and is re-established to the neighboring cell.
  • the UE sends a random access preamble (Random Acce s s Preamb e e) to the target cell access device.
  • a random access preamble Random Acce s s Preamb e e
  • the target cell access device sends a custom message to the source cell access device.
  • the target cell eNB may send a customized message to the source cell eNB, and the customized message may be a newly added X2 interface customized release message, or may be added.
  • the S1 port customizes the release message.
  • the custom message causes the source cell eNB to perform a connection release operation on the UE.
  • the source cell access device performs a connection release operation on the UE.
  • the source cell eNB After the source cell eNB receives the newly added X2 custom release message sent by the target eNB, or after the newly added S1 custom release message, it indicates that the UE has already performed cell handover, and the source cell eNB can directly perform the connection to the UE. Release operation.
  • the specific connection release operation may include: releasing system resources allocated for the UE, and stopping sending any downlink information to the UE.
  • the access device obtains the connection status of the UE through real-time detection, so as to know whether the UE has been disconnected from the connection. If the UE is determined to be disconnected from the connection, the access device may directly perform a connection release operation on the UE. The incoming device detects the connection status of the UE in real time, and does not delay detecting the connection status of the UE by attempting to retransmit the data. Therefore, for the UE to switch due to the cell, or to drop the call, pull the card, power off, turn off the radio, etc. If the reason is disconnected from the connection, the data that the access device retransmits to the UE can be reduced, thereby saving air interface resources and improving the timeliness of resource release.
  • an embodiment of the access device of the present invention includes:
  • the obtaining unit 701 is configured to acquire a connection state of the user equipment UE by using real-time detection.
  • the releasing unit 702 is configured to perform a connection release operation on the UE when the connection status acquired by the obtaining unit 701 indicates that the UE has been disconnected.
  • the access device in this embodiment may further include: a determining unit 703, configured to determine whether the reason for the detachment of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the trigger release unit 702 performs the corresponding operation.
  • a determining unit 703 configured to determine whether the reason for the detachment of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the trigger release unit 702 performs the corresponding operation.
  • the access device in this embodiment may have the following implementation forms, which are respectively described below:
  • another embodiment of the access device of the present invention includes:
  • the obtaining unit 801 is configured to obtain a connection state of the user equipment UE by using real-time detection.
  • the releasing unit 802 is configured to perform a connection release operation on the UE when the connection status acquired by the obtaining unit 801 indicates that the UE has been disconnected from the connection.
  • the access device in this embodiment may further include: a determining unit 803, configured to determine whether the reason for the disconnection of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the trigger release unit 802 performs a corresponding operation.
  • a determining unit 803 configured to determine whether the reason for the disconnection of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the trigger release unit 802 performs a corresponding operation.
  • the obtaining unit 801 includes:
  • the first monitoring module 801 1 is configured to monitor the feedback information of the UE every time the downlink information is sent to the UE;
  • the first recording module 8012 is configured to record a discontinuous transmission DTX event when the UE does not receive the feedback information of the downlink information in the preset time range;
  • the first determining module 801 3 is configured to determine that the UE is disconnected when the number of consecutive DTX events recorded by the first recording module 8012 exceeds a preset threshold.
  • the access device in this embodiment may be an eNB, and the downlink information sent may be a data packet.
  • the eNB sends the data packet P1 to the UE
  • the first monitoring module 801 1 monitors the feedback information of the UE to confirm the UE receiving the data packet P 1 .
  • a recording module 8012 records a DTX event.
  • the first determining module 801 3 can be implemented. It is determined whether the number of consecutive DTX events recorded exceeds a preset threshold.
  • the threshold in this embodiment can be set according to the actual situation. If the timeliness of resource recovery is high, the threshold can be set lower. If the user service stability requirement is high, the threshold can be set. Higher.
  • the first determining module 801 3 determines that the recorded consecutive DTX event exceeds the preset threshold, it indicates that the UE does not feed back the data packet sent by the eNB for a long time, and then it can be determined that the UE has been disconnected.
  • the determining unit 803 determines whether the reason for the UE's detachment is that the UE has a cell handover, or is dropped, or the card is pulled, or is powered off, or If the radio is turned off, if the trigger release unit 802 performs the corresponding operation, the release unit 802 can immediately release the system resources allocated for the UE, and stop sending any downlink information to the UE, and stop monitoring accordingly.
  • another embodiment of the access device of the present invention includes:
  • the obtaining unit 901 is configured to obtain the connection status of the user equipment UE by using real-time detection.
  • the releasing unit 902 is configured to perform a connection release operation on the UE when the connection status acquired by the obtaining unit 901 indicates that the UE has been disconnected from the connection.
  • the access device in this embodiment may further include: a determining unit 903, configured to determine whether the reason for the detachment of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the trigger release unit 902 performs the corresponding operation.
  • a determining unit 903 configured to determine whether the reason for the detachment of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the trigger release unit 902 performs the corresponding operation.
  • the obtaining unit 901 includes:
  • the second monitoring module 901 1 is configured to monitor the feedback information of the UE after sending the downlink information to the UE.
  • the second recording module 9012 is configured to record a discontinuous transmission DTX event when the UE does not receive the feedback information of the downlink information in the preset time range;
  • the second determining module 901 3 is configured to start a timer when the second recording module 9012 records the DTX event, and if the uplink information sent by the UE is not received before the timer expires, determining that the UE is disconnected.
  • the access device in this embodiment may be an eNB, and the downlink information sent may be a data packet.
  • the second monitoring module 901 1 will feedback the UE after the eNB sends the data packet P1 to the UE. The information is monitored to confirm the UE's reception of the data packet PI.
  • the second monitoring module 9011 does not detect feedback information (ie, ACK or NACK) of the UE for the data packet P1 within a preset time range after the data packet P1 is sent to the UE (for example, within 4 milliseconds), the second record Module 9012 records the DTX event.
  • feedback information ie, ACK or NACK
  • the second determining module 901 3 may start a timer and continue to wait for the uplink information (including the uplink data packet or the uplink signaling) sent by the UE within the timer range.
  • the range of the timer may be set according to actual conditions. If the timeliness of resource recovery is high, the range of the timer may be set to be shorter, if the stability of the user service is high. , you can set the range of the timer to be longer.
  • the second determining module 901 3 may wait for the uplink information sent by the UE before the timer expires. If the uplink information sent by the UE is received before the timer expires, the UE is not disconnected from the connection. If the uplink information sent by the UE is not received before the timeout, the UE is disconnected.
  • the second determining module 901 3 receives the uplink information sent by the UE before the timer expires, it indicates that the UE has not left the connection, and the eNB may continue to perform data transmission with the UE.
  • the specific process is not limited herein.
  • the second determining module 901 3 does not receive the uplink information sent by the UE before the timer expires, it indicates that the UE has detached from the connection.
  • the determining unit 903 determines whether the reason for the UE's detachment is that the UE has a cell handover, or is dropped, or is pulled out, or is powered off, or If the radio is turned off, if the trigger release unit 902 performs the corresponding operation, the release unit 902 can immediately release the system resources allocated for the UE, and stop sending any downlink information to the UE, and stop monitoring accordingly.
  • another embodiment of the access device of the present invention includes:
  • the obtaining unit 1001 is configured to acquire the connection status of the user equipment UE by using real-time detection.
  • the releasing unit 1002 is configured to perform a connection release operation on the UE when the connection status acquired by the obtaining unit 1001 indicates that the UE has been disconnected.
  • the access device in this embodiment may further include: a determining unit 1003, configured to determine whether the reason for the disconnection of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the release unit 1 002 is triggered to perform the corresponding operation.
  • the obtaining unit 1001 includes:
  • the first judging module 10011 is configured to determine whether a message sent by the UE indicating that the UE has dropped the call is received;
  • the third determining module 10012 is configured to determine that the UE is disconnected when receiving a message sent by the UE indicating that the UE has dropped the call.
  • the first determining module 10011 may determine, during the communication process, whether a message sent by the UE indicating that the UE has dropped the call is received.
  • the message may be a RRC Connec t ion Rees tab l i shment Reque s t message, or a message 3 (MSG3) message in an actual application.
  • the UE sends a radio connection re-establishment request message to request re-establishment after the dropped call under the same eNB.
  • 3GPP 3rd Generation Partnership Project
  • 3rd Genera-Tion Partner shi p Projec 3rd Generation Partnership Project
  • the sending of the MSG3 message by the UE may indicate that the UE re-enters the network after the abnormal call is dropped after the call is dropped or the radio is turned off.
  • the message indicating that the UE has dropped calls may be other types besides the above two types of messages.
  • the specifics are not limited here.
  • the eNB continues to wait and performs other communication processing procedures.
  • the third determining module 10012 may determine that the UE has detached from the connection.
  • the determining unit 1003 determines whether the reason for the UE's detachment is that the UE has a cell handover, or is dropped, or the card is powered off, or is powered off, or The radio is turned off, and if so, the trigger release unit 1002 performs a corresponding operation, and the release unit 1002 can immediately release the system resources allocated for the UE, and stop transmitting any downlink information to the UE.
  • another embodiment of the access device of the present invention includes:
  • the acquiring unit 1101 is configured to acquire, by using real-time detection, a connection status of the user equipment UE.
  • the releasing unit 1102 is configured to perform a connection release operation on the UE when the connection status acquired by the obtaining unit 101 indicates that the UE has been disconnected.
  • the access device in this embodiment may further include: a determining unit 203, configured to determine whether the reason for the detachment of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the release unit 1 102 is triggered to perform the corresponding operation.
  • a determining unit 203 configured to determine whether the reason for the detachment of the UE is a cell handover of the UE, or a call drop, a card pull, or a power failure, or The radio is turned off, and if so, the release unit 1 102 is triggered to perform the corresponding operation.
  • the obtaining unit 1101 includes:
  • the second determining module 11011 is configured to determine whether a message sent by another network element indicating that the UE initiates a cell handover is received;
  • the fourth determining module 11012 is configured to determine that the UE is disconnected when receiving a message sent by another network element indicating that the UE has a cell handover.
  • the second determining module 1101 1 of the source cell eNB can determine whether a message sent by another network element indicating that the UE has a cell handover is received.
  • the message may be a radio link failure (RLF) sent by the target cell eNB in an actual application.
  • RLF radio link failure
  • the indication message, or the handover report (Handover Repor) message sent by the target cell eNB, or the UE context release (UE Context Re ea se ) message sent by the target cell eNB, or the data forwarding gateway sends The End Marker message, or the handover complete message sent by the different system access device, or the custom release message sent by the target cell eNB.
  • the RLF indication message sent by the target cell eNB is used to describe the failure of the establishment of the radio link.
  • the specific procedure refer to the description in Section 8.3 of the 3GPP protocol 36. 423, which is not limited herein.
  • the handover report message sent by the target cell eNB is used to report the information about the cell handover to the source cell eNB.
  • the handover report message sent by the target cell eNB is used to report the information about the cell handover to the source cell eNB.
  • the UE context release message sent by the target cell eNB causes the source cell eNB to release the context resource allocated for the UE.
  • the End Marker message sent by the Data Forwarding Gateway indicates that this is the last packet sent to the source cell eNB, and subsequent packets will be sent to the target cell eNB.
  • the handover complete message sent by the different system access device is used to indicate that the UE has switched to a different system cell.
  • the target cell eNB may also enable the source cell eNB to perform a connection release operation on the UE by customizing some new messages, such as a custom release message.
  • the source cell eNB determines that the message sent by the other network element to indicate that the UE has a cell handover is not received, the source cell eNB continues to wait and performs other communication processing procedures.
  • the fourth determining module 11012 determines that the UE has detached from the connection.
  • the determining unit 1103 determines whether the reason for the UE's detachment is that the UE has a cell handover, or is dropped, or is pulled out, or is powered off, or The radio is turned off, and if so, the trigger release unit 1102 performs a corresponding operation, and the release unit 1102 can immediately release the system resources allocated for the UE, and stop transmitting any downlink information to the UE.
  • the access device obtains the connection status of the UE through real-time detection, so as to know whether the UE has been disconnected from the connection. If the UE is determined to be disconnected from the connection, the access device may directly perform a connection release operation on the UE. The incoming device detects the connection status of the UE in real time, and does not delay detecting the connection status of the UE by attempting to retransmit the data. Therefore, for the UE to switch due to the cell, or to drop the call, pull the card, power off, turn off the radio, etc. If the reason is disconnected from the connection, the data that the access device retransmits to the UE can be reduced, thereby saving air interface resources and improving the timeliness of resource release.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the component displayed as a unit may or may not be a physical unit, that is, may be located in one place Square, or it can be distributed to multiple network elements. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention may contribute to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, and a read only memory (ROM,
  • RAM Random Access Memory
  • disk disk or optical disk, and other media that can store program code.

Abstract

La présente invention se rapporte à un procédé pour contrôler la libération de ressources radio et à un dispositif d'accès. Le procédé et le dispositif selon l'invention sont adaptés pour conserver des ressources d'interface radio et pour améliorer l'opportunité de la libération de ressources radio. Le procédé décrit dans les modes de réalisation de la présente invention comprend les étapes suivantes : le dispositif d'accès acquiert un état de connexion d'un équipement d'utilisateur (UE) via une détection en temps réel ; et, si l'état de connexion indique que l'UE a interrompu la connexion, le dispositif d'accès exécute alors une opération de libération de la connexion pour l'UE. Dans ses modes de réalisation, la présente invention se rapporte également au dispositif d'accès susmentionné. Les modes de réalisation de la présente invention permettent : de conserver efficacement les ressources d'interface radio ; et d'améliorer l'opportunité de la libération de ressources radio.
PCT/CN2012/085747 2011-12-02 2012-12-03 Procédé pour contrôler la libération de ressources radio et dispositif d'accès WO2013079036A1 (fr)

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CN104221420B (zh) * 2014-01-28 2018-02-23 华为技术有限公司 识别跨制式掉话终端的方法、装置及系统
CN107371208B (zh) * 2016-05-13 2022-04-29 中兴通讯股份有限公司 切换方法及装置
EP3726881B1 (fr) * 2017-12-25 2023-01-25 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de notification de libération du contexte de terminal et dispositif réseau

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754419A (zh) * 2008-12-04 2010-06-23 中兴通讯股份有限公司 一种业务释放的方法及系统
CN101883381A (zh) * 2009-05-05 2010-11-10 大唐移动通信设备有限公司 一种无线资源控制连接重建方法、设备和系统
CN102264157A (zh) * 2011-08-24 2011-11-30 大唐移动通信设备有限公司 一种切换过程中的资源释放方法及装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1909520A1 (fr) * 2006-10-02 2008-04-09 Matsushita Electric Industrial Co., Ltd. Emission et réception d'informations de système en changeant la connectivité ou le point de connexion dans un système de communication mobile
CN101932058A (zh) * 2009-06-19 2010-12-29 华为技术有限公司 释放承载资源的方法及设备

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754419A (zh) * 2008-12-04 2010-06-23 中兴通讯股份有限公司 一种业务释放的方法及系统
CN101883381A (zh) * 2009-05-05 2010-11-10 大唐移动通信设备有限公司 一种无线资源控制连接重建方法、设备和系统
CN102264157A (zh) * 2011-08-24 2011-11-30 大唐移动通信设备有限公司 一种切换过程中的资源释放方法及装置

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