WO2017113986A1 - 移动性管理的方法、用户设备和基站 - Google Patents

移动性管理的方法、用户设备和基站 Download PDF

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Publication number
WO2017113986A1
WO2017113986A1 PCT/CN2016/104700 CN2016104700W WO2017113986A1 WO 2017113986 A1 WO2017113986 A1 WO 2017113986A1 CN 2016104700 W CN2016104700 W CN 2016104700W WO 2017113986 A1 WO2017113986 A1 WO 2017113986A1
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Prior art keywords
base station
cell
identifier
source identifier
low
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PCT/CN2016/104700
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English (en)
French (fr)
Inventor
李秉肇
权威
张戬
刘维华
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN202110515663.7A priority Critical patent/CN113411849B/zh
Priority to RU2018127785A priority patent/RU2710665C1/ru
Priority to EP20192490.9A priority patent/EP3823349A1/en
Priority to EP16880777.4A priority patent/EP3393196B1/en
Priority to CN202110514820.2A priority patent/CN113411848B/zh
Priority to CN201680077421.1A priority patent/CN108476544B/zh
Publication of WO2017113986A1 publication Critical patent/WO2017113986A1/zh
Priority to US16/023,856 priority patent/US11178583B2/en
Priority to US17/527,153 priority patent/US20220078673A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0033Control or signalling for completing the hand-off for data sessions of end-to-end connection with transfer of context information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W4/00Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02Services making use of location information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0011Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/11Allocation or use of connection identifiers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/20Manipulation of established connections
    • H04W76/27Transitions between radio resource control [RRC] states
    • 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
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0055Transmission or use of information for re-establishing the radio link
    • H04W36/0061Transmission or use of information for re-establishing the radio link of neighbour cell information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W76/00Connection management
    • H04W76/10Connection setup
    • H04W76/19Connection re-establishment
    • 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

  • Embodiments of the present invention relate to the field of communications, and, more particularly, to a method, a user equipment, and a base station for mobility management.
  • Mobility management is an important task in wireless mobile communication systems.
  • mobility management may include mobile network handover, cell reselection, and the like of a User Equipment (UE).
  • UE User Equipment
  • the UE In the Long Term Evolution (LTE)/LTE Advanced Evolution (LTE-A) system of the 3rd Generation Partnership Project (3GPP), the UE is divided into idle (Idle) states and Connection state: The UE in the idle state is not connected to the base station, cannot transmit data, and performs cell reselection during the mobile process. If the UE in this state needs to send data, it must first go into the connected state.
  • the UE in the idle state can obtain the connection context and the dedicated identifier in the UE cell through the Radio Resource Control (RRC) connection establishment process, and enter the connected state; the UE in the connected state is connected to the base station, can send data, and is in the process of moving.
  • RRC Radio Resource Control
  • the connected state UE can enter the idle state through the RRC connection release process.
  • the typical process of the UE in the connected state may include the following key steps: the source base station, that is, the current serving base station of the UE, configures measurement parameters for the UE; the UE performs measurement and reports the measurement result to the source base station; the source base station sends the measurement result to the target base station.
  • the handover request is sent to the UE after the target base station confirms; and the UE accesses the target base station, obtains uplink synchronization, and sends a handover complete message.
  • Heterogeneous network Hetnet
  • CoMP Coordinated Multiple Points
  • the technical problem to be solved by the embodiments of the present invention is to provide a mobility management method, a user equipment, and a base station, which solves the problem that a connected UE that does not need to perform data transmission in the prior art is switched due to frequent handover during the mobile process. Signaling overhead and waste of wireless resources.
  • an embodiment of the present invention provides a method for mobility management, where the method may include:
  • the first base station to which the first cell belongs is allocated a source identifier to the user equipment UE in the connected state in the first cell, where the source identifier includes a first UE identifier that identifies the UE in the first base station;
  • the UE After determining that the UE enters a low-overhead state, storing a connection context of the UE in a connected state, where the UE enters the low-overhead state when a preset activation condition is met, where the low-overhead state is The UE stores the connection context and performs cell camping by cell reselection criteria during the move.
  • the base station does not need to frequently participate in the handover procedure during the UE mobility process, and saves the connection context of the UE, so that when the UE needs to perform data transmission,
  • the connection context can be transferred at any time, which saves the communication resources of the network device and improves the efficiency of network communication.
  • the first base station to which the first cell belongs to allocate the source identifier to the user equipment UE in the connected state in the first cell including:
  • the first base station to which the first cell belongs is allocated a source identifier to the UE in the connected state in the first cell by using a cell broadcast message, a dedicated message, or a random access channel RACH procedure.
  • the preset activation condition includes at least one of the following conditions:
  • the first base station does not perform data transmission with the UE within a first preset duration
  • a time advance timer TA timer of the UE Determining, by the first base station, a time advance timer TA timer of the UE, or the Determining, by the base station, that the TA timer of the UE times out and the TA timer is not re-running within a second preset duration;
  • the first base station determines that the UE enters the discontinuous reception DRX state, and does not exit the DRX state within a third preset duration.
  • the method further includes:
  • the first base station sends radio resource control RRC configuration information to the UE, where the UE is used in the low overhead state.
  • the RRC configuration information includes an RRC configuration index, and the configuration index is used to indicate the RRC configuration information.
  • the method further includes:
  • the second cell is a serving cell where the UE currently camps;
  • the first base station after the first base station determines, according to the source identifier and the second cell identifier, that the serving cell currently camped by the UE is the second cell, the first base station further includes:
  • the first base station When the downlink data of the UE reaches the first base station, the first base station sends the connection context and the source identifier of the UE to the second base station, where the second base station belongs to the second cell Base station.
  • the base station does not need to frequently participate in the handover process during the UE mobile process, thereby saving the communication resources of the network device.
  • the context of the UE may be actively switched to the base station where the UE is currently located according to the location information reported by the UE to the network, thereby ensuring the efficiency of data transmission.
  • the notification message carries the verification information of the UE, and the verification information is identity verification information generated by the UE according to the source identifier and a key included in the connection context;
  • the method further includes:
  • the method further includes:
  • connection request carries a source identifier of the UE, where the second cell is a cell currently camped by the UE;
  • the method further includes:
  • the first base station After the downlink data of the UE reaches the first base station or after receiving the first paging message from the core network, the first base station sends a second paging message to the third base station, where the third base station and The first base station belongs to the same paging area.
  • the method when the downlink data of the UE reaches the first base station or before receiving the first paging message from the core network, the method further includes:
  • Receiving paging parameter information sent by the core network where the paging parameter includes a paging index of the UE or a UE DRX cycle.
  • the paging parameter is used to calculate a paging offset of the UE.
  • the method further includes:
  • the second paging message includes a paging parameter, a TMSI, and/or a source identifier of the UE.
  • the paging parameter includes a paging index of the UE and/or a UE DRX cycle.
  • the method further includes:
  • the method further includes:
  • the first base station sends, to the UE, a type of the source identifier that is allowed to be reported by the UE in the low-overhead state, where the type of the source identifier includes a short source identifier or a long source identifier. or
  • the first base station to which the first cell belongs allocates a short source identifier and a long source identifier to the user equipment UE in the connected state in the first cell.
  • the base station does not need to be in the The UE frequently participates in the handover process during the mobile process, which saves the communication resources of the network device.
  • the UE may request to switch the context of the UE to the base station where the UE is currently located according to the source identifier reported by the UE to the network, thereby ensuring the efficiency of data transmission.
  • an embodiment of the present invention provides a method for mobility management, where the method may include:
  • the user equipment UE in the connected state in the first cell receives the source identifier allocated by the first base station to which the first cell belongs, and the source identifier includes the first UE that uniquely identifies the UE in the first base station cell. Identification
  • the UE When the preset activation condition is met, the UE enters a low overhead state, in which the UE stores a connection context of the UE in a connected state, and performs cell reselection by a cell reselection criterion during the mobile process. Resident
  • the UE When the first preset condition is met, the UE reports the source identifier to the second base station to which the second cell belongs, and the second cell is a serving cell where the UE currently camps.
  • the network may send a notification to the network to switch the context of the UE to the base station where the UE is currently located to ensure the efficiency of data transmission.
  • the preset activation condition includes at least one of the following conditions:
  • the UE leaves the first cell
  • the UE does not perform data transmission with the first base station within a first preset duration
  • the time advance timer of the UE is timed out, or the TA timer of the UE is timed out and the TA timer is not re-runned within the second preset duration;
  • the UE After the UE enters the discontinuous reception DRX state, and does not exit the DRX state within the third preset duration.
  • the method further includes:
  • the UE exits the low overhead state when the second preset condition is met;
  • the second preset condition includes:
  • the serving cell currently camped by the UE exceeds a specified cell set range
  • the serving cell currently camped by the UE and the first cell do not belong to the same preset area or the same base station; or
  • the UE reads the system information broadcast of the second cell, and the system information broadcast does not carry the access indication of the UE in the low overhead state; or
  • the UE needs to send uplink data.
  • the UE exits the low-overhead state when the second preset condition is met, including: the UE clears the connection context and enters an idle state when the second preset condition is met.
  • the first preset condition includes:
  • the second cell currently camped by the UE is outside a specified cell set range
  • the second cell and the first cell currently camped by the UE do not belong to the same preset area or the same base station; or
  • the UE needs to send uplink data.
  • the method before the UE reports the source identifier to the second base station to which the second cell belongs, when the first preset condition is met, the method includes:
  • the UE determines to send the source identifier to the second base station according to the access indication.
  • the UE determines to report the long source identifier or the short source identifier according to the indication information sent by the second base station.
  • the long source identifier and the short source identifier may be two independent source identifiers, or the short source identifier is part of the long source identifier.
  • the indication information of the second base station is indication information configured by system broadcast, or authorization information sent to the UE by using an authorization command, and the UE is according to the second
  • the indication information of the base station determines to report the long source identifier or the short source identifier, including:
  • the UE determines, according to the indication in the indication information of the system broadcast configuration, the source identifier type used by the source identifier to report.
  • the UE determines the size of the message that can be transmitted according to the authorization information, and selects to use the long source identifier or the short source identifier according to the size of the message that can be transmitted.
  • the method before the UE reports the source identifier to the second base station to which the second cell belongs, when the first preset condition is met, the method further includes:
  • the UE sends a random access preamble in the preset range to the second base station, where the random access preamble in the preset range is used to indicate that the source identifier needs to be sent to the second base station or needs to be Sending a message that is greater than a preset length threshold to the second base station;
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the UE reports the source identifier to the second base station to which the second cell belongs, including:
  • acknowledgement information including the source identifier
  • the determining, according to the confirmation information, whether to apply the dedicated UE identifier includes:
  • the UE does not apply the dedicated UE identifier according to the acknowledgement information
  • the UE applies the dedicated UE identifier according to the instruction that is sent by the acknowledgment information to indicate that the UE exits the low-overhead state, and exits the low-overhead state.
  • the method includes:
  • the key in the connection context is updated according to the cell identity of the currently camped serving cell.
  • the source identifier further includes verification information, where the verification information is identity verification information generated by the UE according to the source identifier and the updated key.
  • the method further includes:
  • the UE performs paging monitoring by using the source identifier.
  • the method further includes:
  • Radio resource control RRC configuration information where the RRC configuration information includes an RRC configuration index, where the configuration index is used to indicate the RRC configuration information
  • the UE uses the RRC configuration information in the low overhead state.
  • the UE when the first preset condition is met, the UE reports the source identifier to the second base station to which the second cell belongs, including:
  • the UE reports the source identifier including the RRC configuration index to the second base station to which the second cell belongs, so that the second base station determines the RRC configuration information used by the UE according to the RRC configuration index.
  • the first preset condition is that the UE needs to send uplink data, and the UE reports the source identifier to the second base station to which the second cell belongs, and further includes:
  • the UE reports an uplink data indication to the second base station to which the second cell belongs, at the same time as or after the source identifier is reported.
  • an embodiment of the present invention provides a method for mobility management, where the method may include:
  • the second base station to which the second cell belongs receives the source identifier reported by the user equipment UE in the low-overhead state, where the UE stores the connection context of the UE in the connected state in the low-overhead state, and is in the mobile process
  • the cell is relocated by using a cell reselection criterion, where the first cell is a serving cell when the UE enters the low-overhead state, and the second cell is a current serving cell of the UE, where the source identifier is included in Identifying, by the first base station to which the first cell belongs, the first UE identifier of the UE;
  • the network device does not need to frequently participate in the handover process during the UE mobile process, thereby saving the communication resources of the network device.
  • the context of the UE may be switched to the base station where the UE is currently located according to the location information reported by the UE to the network, thereby ensuring the efficiency of data transmission.
  • the source identifier further includes indication information, where the indication information is used to notify the second base station that the UE is in the low overhead state.
  • the method before the second base station to which the second cell belongs, before receiving the source identifier reported by the user equipment UE in the low-overhead state, the method includes:
  • the second base station sends a system information broadcast, where the system information carries the UE access indication in the low overhead state, so that the UE determines whether to send the information to the second base station according to the access indication. Describe the source identifier.
  • the method before the second base station to which the second cell belongs, before receiving the source identifier reported by the user equipment UE in the low-overhead state, the method further includes:
  • the UE When the random access preamble is in a preset range, the UE is allocated a preset size transmission resource, so that the UE sends the source identifier by using the transmission resource.
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the second base station to which the second cell belongs receives the source identifier reported by the user equipment UE in the low-overhead state, including:
  • the second base station to which the second cell belongs receives the random access preamble sent by the user equipment UE in the low overhead state
  • the dedicated UE identifier is an identifier that uniquely identifies the UE in the second cell
  • the sending the acknowledgement information including the source identifier to the UE includes:
  • the sending, by the source identifier, the first UE identifier to the first base station includes:
  • the base station determines, according to the source identifier and the second cell identifier, that the serving cell currently camped by the UE is the second cell.
  • the method further includes:
  • connection context is a connection context of the UE in a connected state stored by the first base station in a low-overhead state of the UE
  • the context transfer request carries the source identifier of the UE
  • the method after receiving the connection context transferred by the first base station, the method further includes:
  • reassigned source identifier includes identifying a second UE identifier of the UE in the second base station;
  • the method further includes:
  • the triggering the UE to perform uplink access according to the source identifier includes:
  • the source identifier further includes a radio control resource RRC configuration index
  • the second base station to which the second cell belongs after receiving the source identifier reported by the user equipment UE in the low-overhead state, further includes:
  • the second base station determines, according to the RRC configuration index, RRC configuration information used by the UE.
  • the sending, by the source identifier, the first UE identifier to the first base station includes:
  • an embodiment of the present invention provides a base station, where the base station is a first base station, and the first base station may include: an output unit, a storage unit, and a processing unit;
  • the storage unit is configured to store program code
  • the processing unit is configured to invoke the program code stored by the storage unit to perform the following steps:
  • a source identifier to a user equipment UE in a connected state in the first cell, where the source identifier includes a first UE identifier that identifies the UE in the first base station;
  • the UE After determining that the UE enters a low-overhead state, storing a connection context of the UE in a connected state, where the UE enters the low-overhead state when a preset activation condition is met, where the low-overhead state is The UE stores the connection context and performs cell camping by cell reselection criteria during the move.
  • the processing unit is configured to allocate a source identifier to the user equipment UE in the connected state in the first cell by using the output unit, specifically:
  • the source identifier is allocated to the UE in the connected state in the first cell by the cell broadcast message, the dedicated message output by the output unit, or in the random access channel RACH procedure.
  • the preset activation condition includes at least one of the following conditions:
  • the first base station does not perform data transmission with the UE within a first preset duration
  • the first base station determines that the UE enters the discontinuous reception DRX state, and does not exit the DRX state within a third preset duration.
  • processing unit is further configured to:
  • Radio resource control RRC configuration information Transmitting, by the output unit, radio resource control RRC configuration information to the UE, for the UE to use in the low overhead state.
  • the RRC configuration information includes an RRC configuration index, and the configuration index is used to indicate the RRC configuration information.
  • the base station further includes an input unit; the processing unit is further configured to:
  • the notification message sent by the second base station to which the second cell belongs is received by the input unit, where the notification message carries the source identifier of the UE and the current a second cell identifier of the second cell, where the second cell is a serving cell where the UE currently camps;
  • processing unit is further configured to:
  • the connection context is And the source identifier of the UE is sent to the second base station by using the output unit, where the second base station is a base station to which the second cell belongs.
  • the base station further includes an input unit, where the notification message carries verification information of the UE, and the verification information is that the UE is based on the source identifier and a key included in the connection context. Generated identity verification information;
  • the processing unit is further configured to:
  • the input unit After receiving the notification message sent by the second base station, the input unit determines whether the UE is a legal UE according to the source identifier and the verification information.
  • the base station further includes an input unit; the processing unit is further configured to:
  • the input unit After determining that the UE enters a low-overhead state, receiving, by the input unit, a transfer request of the connection context sent by a second base station to which the second cell belongs, where the transfer request carries a source identifier of the UE
  • the second cell is a cell where the UE currently camps;
  • the base station further includes a processing unit; the processing unit is further configured to:
  • the system information broadcast is sent by the output unit, and the system information carries the UE that reports the source identifier in the low-overhead state.
  • Type so that the UE determines to adopt a short source identifier or a long source identifier according to the type of the source identifier.
  • the short-source identifier and the long-source identifier are allocated to the UE by the output unit before the source identifier reported by the user equipment UE in the low-overhead state is received by the input unit.
  • the second paging message is sent to the third base station by using the output unit.
  • the third base station and the first base station belong to the same paging area.
  • the paging parameter information sent by the input unit to the receiving core network before the downlink data arrives at the first base station by using the input unit where the paging parameter includes a paging index of the UE or a UE DRX cycle.
  • the paging parameter is used to calculate a paging offset of the UE.
  • an embodiment of the present invention provides a user equipment UE, where the user equipment UE may include: an input unit, an output unit, a storage unit, and a processing unit;
  • the storage unit is configured to store program code
  • the processing unit is configured to invoke the program code stored by the storage unit to perform the following steps:
  • a source identifier that is allocated by the first base station to which the first cell belongs, where the source identifier includes a first UE identifier that uniquely identifies the UE in the first base station cell;
  • the UE When the preset activation condition is met, the UE enters a low overhead state, in which the UE stores a connection context of the UE in a connected state, and performs cell reselection by a cell reselection criterion during the mobile process. Resident
  • the source identifier is reported by the output unit to the second base station to which the second cell belongs, where the second cell is a serving cell where the UE currently camps.
  • the preset activation condition includes at least one of the following conditions:
  • the UE leaves the first cell
  • the UE does not perform data transmission with the first base station within a first preset duration
  • the time advance timer of the UE is timed out, or the TA timer of the UE is timed out and the TA timer is not re-runned within the second preset duration;
  • the UE After the UE enters the discontinuous reception DRX state, and does not exit the DRX state within the third preset duration.
  • processing unit is further configured to:
  • the UE After the UE enters a low overhead state when the preset activation condition is met, the UE exits the low overhead state when the second preset condition is met;
  • the second preset condition includes:
  • the serving cell currently camped by the UE exceeds a specified cell set range
  • the serving cell currently camped by the UE and the first cell do not belong to the same preset area or the same base station; or
  • the UE reads the system information broadcast of the second cell, and the system information broadcast does not carry the access indication of the UE in the low overhead state; or
  • the UE needs to send uplink data.
  • the processing unit is configured to: when the UE meets the second preset condition, exit the low-overhead state, specifically: clearing the connection context when the second preset condition is met, and entering Idle state.
  • the first preset condition includes:
  • the second cell currently camped by the UE is outside a specified cell set range
  • the second cell and the first cell currently camped by the UE do not belong to the same preset area or the same base station; or
  • the UE needs to send uplink data.
  • processing unit is further configured to:
  • the system information broadcast carries an access indication that allows the UE in the low-overhead state, and determines, according to the access indication, that the source identifier is sent to the second base station by using the output unit.
  • the processing unit is further configured to: before the first target condition is met, before the source identifier is reported by the output unit to the second base station to which the second cell belongs,
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the processing unit is configured to report the source identifier to the second base station to which the second cell belongs, specifically:
  • the dedicated UE identifier sent by the second base station and according to the random Transmitting, by the preamble, a transmission resource for transmitting the source identifier, where the dedicated UE identifier is an identifier that uniquely identifies the UE in the second cell;
  • the processing unit is configured to determine, according to the confirmation information, whether to apply the dedicated UE identifier, specifically:
  • the processing unit does not apply the dedicated UE identifier according to the confirmation information; or
  • the processing unit applies the dedicated UE identity according to the acknowledgement information, and exits the low overhead state; or
  • the processing unit applies the dedicated UE identity according to the acknowledgement information and maintains the low overhead state;
  • the processing unit applies the dedicated UE identifier according to an instruction in the acknowledgement information that indicates that the UE exits the low overhead state, and exits the low overhead state.
  • processing unit is further configured to:
  • the key in the connection context is updated according to the cell identity of the currently camped serving cell.
  • the source identifier further includes verification information, where the verification information is identity verification information generated by the UE according to the source identifier and the updated key.
  • processing unit is further configured to:
  • paging monitoring is performed with the source identifier.
  • processing unit is further configured to:
  • the radio resource control RRC configuration information sent by the first base station is received by the input unit, where the RRC configuration information includes an RRC configuration index, where the configuration index is used. Indicating the RRC configuration information;
  • the UE uses the RRC configuration information in the low overhead state.
  • the processing unit is configured to report the source identifier to the second base station to which the second cell belongs when the first preset condition is met, specifically:
  • the output unit And reporting, by the output unit, the source identifier that includes the RRC configuration index to a second base station to which the second cell belongs, so that the second base station determines, according to the RRC configuration index, an RRC configuration used by the UE. information.
  • the processing unit is configured to: the first preset condition is that the UE needs to send uplink data, and report the source identifier to the second base station to which the second cell belongs, specifically:
  • the processing unit is used to:
  • the indication information sent by the second base station is received and read by the input unit, Determining, according to the indication information, a type of sending the source identifier to the second base station by using the output unit.
  • the indication information is authorization information that is sent to the UE by using an authorization command
  • the processing unit is further configured to:
  • the size of the message that can be transmitted is determined according to the authorization information, and the long source identifier or the short source identifier is selected according to the size of the message that can be transmitted.
  • an embodiment of the present invention provides a base station, where the base station is a second base station, where the second base station may include: an input unit, an output unit, a storage unit, and a processing unit;
  • the storage unit is configured to store program code
  • the processing unit is configured to invoke the program code stored by the storage unit to perform the following steps:
  • a source identifier reported by the user equipment UE in a low-overhead state wherein the UE stores the connection context of the UE in a connected state in the low-overhead state, and passes the cell during the mobile process
  • the re-selection criterion is performed by the cell, the first cell is a serving cell when the UE enters the low-overhead state, the second cell is a current serving cell of the UE, and the source identifier is included in the Identifying, by the first base station to which the cell belongs, the first UE identifier of the UE;
  • the station is configured to notify the first base station that the current serving cell of the UE is the second cell.
  • the source identifier further includes indication information, where the indication information is used to notify the second base station that the UE is in the low overhead state.
  • processing unit is further configured to:
  • the system information broadcast is sent by the output unit, where the system information carries the UE access indication in the low-overhead state. So that the UE determines whether to send the source identifier to the second base station according to the access indication.
  • the processing unit is further configured to: before the source identifier reported by the user equipment UE in the low overhead state, is received by the input unit,
  • the output unit allocates a preset size transmission resource to the UE, so that the UE sends the source identifier by using the transmission resource.
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the processing unit is configured to receive, by using the input unit, a source identifier reported by the user equipment UE in a low-overhead state, specifically:
  • acknowledgement information including the source identifier to the UE.
  • the processing unit sends, by using the output unit, acknowledgement information including the source identifier to the UE, specifically:
  • the processing unit sends the first UE identifier to the first base station according to the source identifier by using the output unit, specifically:
  • the notification message Sending, by the output unit, the notification message to the first base station according to the source identifier, where the notification message carries the source identifier of the UE and the second cell identifier of the second cell where the UE is currently located, And determining, by the first base station, that the serving cell currently camped by the UE is the second cell according to the source identifier and the second cell identifier.
  • processing unit is further configured to:
  • connection context is a connection context of the UE in a connected state stored by the first base station in a low-overhead state of the UE
  • the context transfer request carries the source identifier of the UE
  • processing unit is further configured to:
  • the reassigned source identifier includes identifying the location in the second base station Describe a second UE identifier of the UE;
  • processing unit is further configured to:
  • the output unit After the output unit sends the first UE identifier to the first base station according to the source identifier, receiving, by the output unit, the connection context sent by the first base station and a source identifier of the UE ;
  • the processing unit is configured to trigger the UE to perform uplink access according to the source identifier, specifically:
  • the source identifier further includes a radio control resource RRC configuration index
  • the processing unit is further configured to:
  • the RRC configuration information used by the UE is determined according to the RRC configuration index.
  • the processing unit is configured to send, by using the output unit, the first UE identifier to the first base station according to the source identifier, specifically:
  • the source identifier includes identifying a first cell identifier of the first cell and Determining, in the first cell, a first UE identifier of the UE, where the first cell identifier includes a cell global identifier ECGI, a physical cell identifier PCI, or an area identifier, and the first cell is in the area. Identifying at least one of the constituent cell identifiers; or the source identifier includes a first base station identifier that uniquely identifies the first base station and a first UE identifier that uniquely identifies the UE within the first base station.
  • the UE in the state stores the connection context of the UE in the connected state, and performs cell camping by the cell reselection criterion during the mobile process, and at the same time, at the low
  • the UE in the overhead state receives the source identifier sent by the source base station, and reports the source identifier to the current serving base station of the UE, and finally sends the source identifier to the source base station, so that the serving base station is sent by the serving base station. Both the source base station and the source base station can know the location information of the UE.
  • the UE autonomously performs the mobility based on the cell reselection, and only reports the location change information of the UE, which simplifies the handover process and saves the communication resources of the network device. Further, since the source base station and the UE both store the connection context of the UE after entering the low-overhead state, when the UE needs to perform uplink or downlink data communication, the UE may be connected. The following is switched to the current serving base station of the UE, and then data transmission is performed to ensure the efficiency of data transmission.
  • FIG. 1 is a schematic diagram of a network architecture of mobility management provided by the present invention.
  • FIG. 2 is a schematic flow chart of a method for mobility management provided by the present invention.
  • FIG. 3 is a schematic flow chart of another method for mobility management provided by the present invention.
  • FIG. 4 is a schematic flow chart of still another method for mobility management provided by the present invention.
  • FIG. 5 is a schematic structural diagram of a first base station provided by the present invention.
  • FIG. 6 is a schematic structural diagram of a user equipment provided by the present invention.
  • FIG. 7 is a schematic structural diagram of a second base station provided by the present invention.
  • FIG. 8 is a schematic flowchart diagram of still another method for mobility management provided by the present invention.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the base station may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (The present invention is not limited to the evolution of the Node B, the eNB or the eNodeB, or the base station equipment in the future 5G network.
  • BTS Base Transceiver Station
  • NodeB base station
  • LTE evolved base station in LTE
  • the UE may communicate with one or more core networks via a Radio Access Network (RAN), and the UE may be referred to as an access terminal or a terminal.
  • RAN Radio Access Network
  • Device subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.
  • the UE can be a cellular phone, a cordless phone, a smart phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a smart bracelet, a smart wearable device, an MP3 player (Moving) Picture Experts Group Audio Layer III, dynamic video experts compress standard audio level 3), MP4 (Moving Picture Experts Group Audio Layer IV), player, personal digital assistant (PDA), Handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, and terminal devices in future 5G networks.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA personal digital assistant
  • the network architecture includes a base station, a core network, and a user equipment UE.
  • the UE passes the corresponding first base station and the first
  • the wireless communication between the second base station and the Nth base station completes the transmission of data, and each base station and the core network are connected by optical fibers to complete connection, management, and bearer of data or services.
  • the network architecture in FIG. 1 is only one of the preferred embodiments of the present invention.
  • the network architecture in the embodiment of the present invention includes, but is not limited to, the foregoing network architecture.
  • FIG. 2 is a schematic flowchart diagram of a method for mobility management according to an embodiment of the present invention. The detailed description will be made below from the interaction side of the first base station, the user equipment UE, and the second base station in conjunction with FIG. 2. As shown in FIG. 2, the method may include the following steps S201 to S207.
  • S201 The first base station to which the first cell belongs to the user equipment in the connected state in the first cell
  • the UE allocates a source identifier, and the source identifier includes a first UE identifier that identifies the UE in the first base station.
  • the first base station allocates a source identifier to the UE in the connected state in the first cell by using a cell broadcast message, a dedicated message, or a random access channel RACH procedure.
  • the RRC (Radio Resource Control, RRC) message allocation source identifier such as a radio bearer reconfiguration message, a radio bearer release message, or a radio bearer re-establishment message, may be controlled by a dedicated message or a radio resource; and the source identifier is allocated through the RACH procedure.
  • the source identifier may be carried by the preamble response message.
  • the source identifier includes a first cell identifier that identifies the first cell and a first UE identifier that uniquely identifies the UE in the first cell, or the source identifier includes a first base station identifier that uniquely identifies the first base station And identifying, in the first base station, the first UE identity of the UE.
  • the method for uniquely identifying the UE in the first cell by using the first UE identifier is not limited to using the first UE identifier to uniquely identify the UE, and may also use the first UE identifier and other auxiliary information, for example.
  • the verification information together uniquely identifies the UE, and the belonging verification information is generated according to the key of the UE.
  • the first cell identifier includes at least one of a cell global identifier ECGI, a physical cell identifier PCI, or a cell identifier consisting of an area identifier and an identifier of the first cell in the area;
  • the certain cell range for example, 256 cells are one area, the area identifier is 8 bits, and the maximum number of cells supported in one area is 256, the cell identifier in the area is 8 bits, and the corresponding cell identifier is composed of 16 bits, the first 8 bits.
  • the last 8 bits are the intra-area cell identifier.
  • the base station identifier may also be composed of an area identifier and a base station identifier in the area.
  • the source identifier may further include the identifier division indication information, where the identifier division indication information is used to indicate the base station identifier and the bit division of the first UE identifier in the source identifier that identifies the UE in the base station, and the identifier
  • the source identifier may further include the identifier division indication information, where the identifier division indication information is used to indicate the first cell identifier identifier, and the first UE identifier that identifies the UE in the first cell identifier is in the source identifier.
  • Bit division the specific method is the same as the base station identification and the UE identification. Division between.
  • the user equipment UE in the connected state in the first cell receives the source identifier allocated by the first base station to which the first cell belongs, and the source identifier includes the first identifier that is uniquely identified in the first base station cell.
  • a UE identity The user equipment UE in the connected state in the first cell receives the source identifier allocated by the first base station to which the first cell belongs, and the source identifier includes the first identifier that is uniquely identified in the first base station cell. A UE identity.
  • the UE receives the source identifier by using a cell broadcast message, a dedicated message, or a random access channel RACH procedure by the first base station to which the first cell belongs.
  • S203 The UE enters a low-overhead state when the preset activation condition is met.
  • the UE stores a connection context of the UE in a connected state, and performs a cell reselection criterion during the mobile process. The residence of the cell.
  • the preset activation condition includes at least one of the following conditions:
  • the UE leaves the first cell
  • the UE does not perform data transmission with the first base station within a first preset duration
  • the time advance timer of the UE expires, or the TA timer of the UE times out and the TA timer does not re-run during the second preset duration;
  • the UE After the UE enters the discontinuous reception DRX state, and does not exit the DRX state within the third preset duration.
  • the UE exits the low overhead state when the second preset condition is met, and the second preset condition includes at least one of the following conditions:
  • the serving cell change currently hosted by the UE.
  • the serving cell currently camped by the UE exceeds the specified cell set range
  • the serving cell currently camped by the UE and the first cell do not belong to the same preset area or the same base station; or
  • the UE reads the system information broadcast of the second cell, and the system information broadcast does not carry the access indication of the UE in the low overhead state; or
  • the UE needs to send uplink data
  • the UE acquires a reference signal measurement result, and the reference signal measurement result and a predetermined first gate
  • the result of the comparison is in accordance with the preset result; or
  • the length of the predefined period of time may be the length of time set by the UE, or the length of time configured by the first base station; or
  • the UE has a PLMN change.
  • the serving cell and the first cell that the UE currently camps on are not in the same preset area or the same base station, and the UE determines that the UE currently resides according to the area identifier carried in the system information broadcast of the first cell and the current camping cell. Whether the cell and the first cell belong to the same preset area; or, the UE determines, according to the base station identifier carried in the system information broadcast of the first cell and the current camping cell, whether the serving cell and the first cell currently camped by the UE are Belong to the same preset area.
  • the reference signal measurement results include path loss, signal strength or signal quality.
  • the predetermined result is greater than, equal to or less than or a combination thereof.
  • the UE obtains a reference signal measurement result, and the reference signal measurement result is compared with a predetermined first threshold. If the result meets the preset result, the low overhead state is exited, for example, the predetermined path loss is greater than the first threshold.
  • the change of the PLMN (Public Land Mobile Network) of the UE includes that the PLMN to which the currently selected cell of the UE belongs does not belong to the current set of PLMNs of the UE. Specifically, any one of the currently-owned PLMNs is not in the PLMN set currently set by the UE.
  • the current set PLMN set of the UE includes any one of the following three or a combination thereof: a PLMN currently registered by the UE or a PLMN selected by the UE or an equivalent PLMN of the UE.
  • the UE clears the connection context when the second preset condition is met, and enters an idle state. Further, the UE notifies the upper layer of the UE that the UE has exited the low overhead state, or the UE notifies the upper layer of the UE that the UE has exited the low overhead state, and the UE is triggered by the high layer. Tracking the area update, or the UE triggers the tracking area update. Further, the UE carries an indication in the tracking area update message, where the indication is used to notify the core network that the UE is in a low overhead state, so that the core network according to the The information triggers the release of the connection of the UE.
  • the UE exits the low overhead state when the second preset condition is met, and the exiting the low overhead state includes clearing the saved connection context.
  • the connection context includes a connection configuration parameter between the first base station and the UE, and specifically includes a radio bearer configuration of the UE, and identifier information of the UE, where
  • the line bearer configuration includes a signaling radio bearer configuration and/or a data radio bearer configuration.
  • the indication information of the UE may include a source identifier of the UE.
  • the connection context may further include key information, which is used when performing encrypted transmission or when generating UE authentication information.
  • the UE receives the RRC configuration information that is sent by the first base station, where the RRC configuration information includes an RRC configuration index, where the configuration index is used to indicate the RRC configuration information; After the UE enters the low overhead state when the preset activation condition is met, the RRC configuration information is used in the low overhead state.
  • the UE releases the dedicated UE identifier of the UE in the first cell.
  • the UE after the UE enters a low overhead state when the preset activation condition is met, the UE performs paging monitoring by using the source identifier.
  • the low overhead state in the present invention is the UE state defined by the invention, and the feature includes storing the connection context and performing mobility based on cell reselection.
  • the low overhead state has the characteristics of low signaling overhead and low power consumption overhead. Therefore, the present invention is named as a low overhead state, and the low overhead state may be a substate of the connected state or an enhanced state of the idle state. This is not limited.
  • the low overhead state may be an idle state and the UE that holds the connection context is saved, and the low overhead state UE clears the context and enters a normal idle state.
  • the low overhead state may be a connected state, and the UE that is allowed to perform mobility of the cell reselection, and the low overhead state stops the mobility throat of the cell reselection from entering the normal connected state.
  • the preset activation condition includes at least one of the following conditions:
  • the first base station does not perform data transmission with the UE within a first preset duration
  • the first base station determines that the UE enters the discontinuous reception DRX state, and does not exit the DRX state within the third preset duration.
  • the control command sent by the first base station to the UE to indicate that the UE enters a low-overhead state may be RRC signaling, or may be MAC layer signaling or physical layer signaling.
  • the control command may be sent to the UE in the same message as the source identifier, or may be sent to the UE in different messages, which is not specifically limited in the present invention.
  • the first base station further sends radio resource control RRC configuration information to the UE, where the UE is used in the low overhead state.
  • the RRC configuration information includes an RRC configuration index, where the configuration index is used to indicate the RRC configuration information.
  • the RRC configuration includes a radio bearer configuration of the UE in a low-overhead state, where the radio bearer configuration includes a signaling radio bearer configuration and/or a data radio bearer configuration.
  • the RRC configuration may further include key information for use in performing an encrypted transmission.
  • S205 The UE reports the source identifier to the second base station to which the second cell belongs when the UE meets the first preset condition, where the second cell is a serving cell where the UE currently camps.
  • the first preset condition includes:
  • the serving cell change currently hosted by the UE.
  • the second cell currently camped by the UE is outside the specified cell set range
  • the second cell and the first cell currently camped by the UE do not belong to the same preset area or the same base station; or
  • the UE needs to send uplink data.
  • the UE before the UE reports the source identifier to the second base station, the UE receives and reads the system information broadcast of the second cell, if the system information broadcasts The UE carries an access indication that allows the UE in the low-overhead state, and the UE determines to send the source identifier to the second base station according to the access indication.
  • the UE determines to report the source identifier according to the reference signal measurement result.
  • the reference signal measurement result includes path loss, signal quality or signal strength, and the UE compares the reference signal measurement result with the first predetermined threshold, and determines whether to report the identifier according to the comparison result.
  • the first predetermined threshold may be a preset fixed value or a threshold configured by the base station to the UE. For example, if the test signal measurement result is a path loss, and the UE determines that the path loss is less than a predetermined first predetermined threshold, the source identifier can be reported. Or otherwise, if the UE exits the low overhead state, the saved context is cleared.
  • the UE sends a random access preamble in the preset range to the second base station, before the UE reports the source identifier to the second base station, where Pre a random access preamble in the range is used to indicate that the source identifier needs to be sent to the second base station or a message that is greater than a preset length threshold needs to be sent to the second base station; And transmitting, by the transmission resource, the source identifier to the second base station.
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the UE reports the source identifier to the second base station, where the UE may report the source identifier including the RRC configuration index to the second base station, so that the second base station configures the index according to the RRC. Determining RRC configuration information used by the UE.
  • the UE reports the source identifier to the second base station, where the UE may send a random access preamble to the second base station, and receive the dedicated UE identifier sent by the second base station.
  • a transmission resource allocated by the random access preamble for transmitting the source identifier where the dedicated UE identifier is an identifier that uniquely identifies the UE in the second cell; and the source is used by using the transmission resource Sending an identifier to the second base station; receiving, by the second base station, acknowledgement information including the source identifier; and determining, according to the acknowledgement information, whether to apply the dedicated UE identifier.
  • the UE determines, according to the confirmation information, whether to apply the dedicated UE identifier, specifically:
  • the UE applies the dedicated UE identifier according to the instruction carried in the acknowledgement information indicating that the UE exits the low overhead state, and exits the low overhead state. Further, after the UE applies the dedicated UE identifier, the key in the connection context is updated according to the cell identity of the currently camped serving cell. Further, the source identifier reported by the UE to the second base station further includes verification information, where the verification information is identity verification information generated by the UE according to the source identifier and the updated key.
  • the source identifier reported by the UE further includes indication information, where the indication information is used to notify the second base station that the UE is in the low overhead state.
  • the UE reports the source identifier to the second base station, where the source identifier includes a long source identifier and a short source identifier.
  • the UE according to the indication information or reference of the second base station The test signal measurement result determines whether to report the long source identifier or the short source identifier.
  • the long source identifier and the short source identifier may be two independent source identifiers, or the short source identifier is part of the long source identifier.
  • the long source identifier is N bits long, and the short source identifier may be M bits therein, where M is smaller than N.
  • the indication information of the second base station may be sent through the indication information of the system broadcast configuration or the authorization information sent to the UE by using an authorization command.
  • the indication information of the system broadcast configuration may be the knowledge indicating that the UE uses the long source identifier or the short source identifier, and the UE may determine, according to the indication, the source identifier type used by the source identifier to report.
  • the indication information is authorization information that is sent to the UE by using an authorization command, and the UE determines the size of the message that can be transmitted according to the authorization information, and selects to use the long source identifier or the short source identifier according to the size of the message that can be transmitted.
  • the authorization information is 56 bits, and the length of the source identifier can be 25 bits. If the short source identifier is used, or the authorization information is 88 bits, and the length of the source identifier can be 40 bits, the long source identifier is selected.
  • the UE determines to report the long source identifier or the short source identifier according to the reference signal measurement result, and includes: the reference signal measurement result includes path loss, signal quality or signal strength, and the UE according to the reference signal measurement result and the first predetermined threshold For comparison, it is determined according to the comparison result that the long source identifier or the short source identifier is reported.
  • the first predetermined threshold may be a preset fixed value or a threshold configured by the base station to the UE.
  • the UE reports the source identifier to the second base station, where the source identifier includes a long source identifier and a short source identifier.
  • the UE determines to report the short source identifier first, and then the subsequent message reports the long source identifier or the long source identifier according to the indication of the second base station to remove the remaining content of the short source identifier portion.
  • the second base station determines, according to the short source identifier, that the first base station sends a context transfer request to the first base station, and if the context cannot be obtained, instructs the UE to report the long source identifier or the long source identifier to remove the short source identifier.
  • the rest of the content in this way, can avoid reporting the long source identifier first.
  • the short source identifier is part of the long source identifier.
  • the long source identifier is N bits long, and the short source identifier may be M bits therein.
  • the short source identifier may be a low N bit of the long source identifier or a high N bit of the long source identifier. Where M is less than N.
  • the serving cell may still be the first cell when the UE satisfies the first set condition, or is different from Other cells of the first cell, so the second cell and the first cell are the same cell or different cells.
  • the second base station to which the second cell belongs receives the user equipment UE reported in the low-overhead state. Source ID.
  • the first cell is a serving cell when the UE enters the low-overhead state
  • the second cell is a current serving cell of the UE
  • the source identifier is included in the first cell to which the first cell belongs.
  • a first UE identity of the UE is identified within the base station.
  • the second base station before the second base station receives the source identifier reported by the user equipment UE in the low-overhead state, the second base station sends a system information broadcast, where the system information carrying allows the low-overhead state to be The UE access indication, so that the UE determines whether to send the source identifier to the second base station according to the access indication.
  • the second base station controls whether the access of the UE in the low-overhead state is allowed by using the system information broadcast. Therefore, the UE determines whether the source identifier can be reported by determining the indication carried in the broadcast.
  • the second base station receives the random access preamble sent by the UE before receiving the source identifier reported by the user equipment UE in the low-overhead state; when the random access preamble is preset In the range, the UE is allocated a preset size transmission resource, so that the UE sends the source identifier by using the transmission resource.
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the second base station receives the source identifier reported by the user equipment UE in the low-overhead state, where the second base station to which the second cell belongs receives the user equipment UE that is sent in the low-overhead state.
  • Random access preamble assigning a dedicated UE identifier and a transmission resource for transmitting the source identifier to the UE according to the random access preamble, the dedicated UE identifier being uniquely identified in the second cell
  • the second base station sends the acknowledgement information including the source identifier to the UE, where the second base station sends an acknowledgement message including the source identifier and carrying an instruction indicating that the UE exits the low overhead state. Said UE, so that the UE applies the dedicated UE identity according to the instruction and exits the low overhead state.
  • the source identifier that is reported by the second receiving UE further includes a radio control resource RRC configuration index
  • the second base station receives the source identifier reported by the UE in the low-overhead state, according to the RRC.
  • the configuration index determines RRC configuration information used by the UE.
  • the second base station sends the first UE identifier to the first base station according to the source identifier, to notify the first base station to learn that the current serving cell of the UE is the second cell.
  • the second base station sends the source identifier to the first base station by using an inter-base station interface between the base station and the first base station according to the source identifier, or sending, according to the source identifier, the first base station to the first base station according to the source identifier.
  • Source ID the source identifier
  • the second base station sends a notification message to the first base station according to the source identifier, where the notification message carries the source identifier of the UE and the second cell of the second cell where the UE is currently located. a cell identifier, where the second cell is a serving cell that the UE currently camps on; the first base station receives the notification message sent by the second base station, and determines, according to the source identifier and the second cell identifier, that the serving cell currently camped by the UE is the second Community.
  • the notification message carries the verification information of the UE, where the verification information is identity verification information generated by the UE according to the source identifier and a key included in the connection context, the first base station Determining, according to the source identifier and the verification information, whether the UE is a legitimate UE.
  • the second base station after the second base station sends the first UE identifier to the first base station according to the source identifier, the second base station receives the connection context sent by the first base station and the source of the UE. And determining, according to the received connection context and the source identifier, configuration information of the UE, and triggering, by the source identifier, the UE to perform uplink access.
  • the interaction process implemented by the present invention does not limit all the steps to be performed at the same time, that is, the processing steps of the UE, the first base station, and the second base station may be in the UE device, the first base station device, and the second base station device. They are executed independently.
  • the implementation of any device, including the UE, the first base station, and the second base station, is within the protection scope of the embodiments of the present invention.
  • the UE in the state stores the connection context of the UE in the connected state, and performs cell camping by the cell reselection criterion during the mobile process, and at the same time, at the low
  • the UE in the overhead state receives the source identifier sent by the source base station, and reports the source identifier to the current serving base station of the UE, and finally sends the source identifier to the source base station, so that the serving base station is sent by the serving base station. Both the source base station and the source base station can know the location information of the UE.
  • the UE autonomously performs the mobility based on the cell reselection, and only reports the location change information of the UE, which simplifies the handover process and saves the communication resources of the network device.
  • FIG. 3 is a schematic flowchart diagram of another method for mobility management according to an embodiment of the present invention. The following describes the interaction between the first base station, the UE, and the second base station in conjunction with FIG. 3, as shown in FIG. The method may include the following steps S301 to S313.
  • Step S301 The first base station to which the first cell belongs is allocated a source identifier to the UE in the connected state in the first cell by using a cell broadcast message, a dedicated message, or a random access channel RACH procedure.
  • Step S302 The user equipment UE in the connected state in the first cell receives the source identifier allocated by the first base station to which the first cell belongs, and the source identifier includes the UE that uniquely identifies the UE in the first base station cell. First UE identity.
  • Step S303 The UE enters a low overhead state when the preset activation condition is met.
  • the UE stores the connection context of the UE in the connected state, and passes the cell reselection criterion during the mobile process. Perform cell resident.
  • Step S304 After the first base station determines that the UE enters a low-overhead state, storing a connection context of the UE in a connected state, where the UE enters the low-overhead state when the preset activation condition is met, where The UE stores the connection context in a low overhead state and performs cell camping by cell reselection criteria during the move.
  • step S301 to step S304 may refer to step S201 to step S204 in the foregoing embodiment of FIG. 2, and details are not described herein again.
  • Step S305 The step includes: in step 205, when the first preset condition is that the UE needs to send uplink data, and the reporting, by the UE, the source identifier to the second base station to which the second cell belongs, The UE reports an uplink data indication to the second base station to which the second cell belongs, at the same time as or after the source identifier is reported.
  • the source identifier and the uplink data indication may be carried in the same report message or different report messages, and the report message may be an RRC message, a MAC control cell, or a physical layer control message.
  • the uplink data indication may be one bit to indicate that the UE data arrives or is an indication of the amount of data.
  • Step S306 The second base station receives the source identifier and the uplink data indication sent by the UE.
  • Step S307 The second base station sends a transfer request of the connection context to the first base station, where the connection context is that the first base station stores the UE in a connected state when the UE enters a low-overhead state.
  • the connection context, where the context transfer request carries the source identifier of the UE.
  • Step S308 The first base station receives the transfer request of the connection context sent by the second base station to which the second cell belongs, where the transfer request carries the source identifier of the UE, and the second cell is The cell where the UE currently camps.
  • Step S309 The first base station sends the connection context to the second base station according to the source identifier carried in the transfer request.
  • the first base station after the first base station sends the connection context to the second base station, the first base station further sends a core network data path switching indication to the second base station, so that the second base station reads Whether to switch the core network data path to the second base station.
  • the first base station when the first base station sends the connection context to the second base station, before or after, the paging parameter sent by the first base station to the second base station, the paging parameter Including, the paging index of the UE or the UE DRX cycle.
  • the second base station may trigger paging to the UE according to the paging parameter.
  • Step S310 The second base station receives the connection context transferred by the first base station, and establishes a connection established by the UE according to the connection context.
  • the second base station determines, according to the received connection context, the configuration information of the UE according to the source identifier, and triggers the UE to perform uplink access according to the source identifier. . Further, the UE is triggered to perform uplink access according to the source identifier, specifically:
  • the second base station after receiving the connection context transferred by the first base station, the second base station further sends a reassigned source identifier to the UE, where the reassigned source identifier is included in the second Identifying, by the base station, a second UE identifier of the UE; and sending an instruction to the UE to instruct the UE to exit the low overhead state.
  • the interaction process implemented by the present invention does not limit all the steps to be performed at the same time, that is, the processing steps of the UE, the first base station, and the second base station may be in the UE device, the first base station device, and the second base station device. They are executed independently.
  • the implementation of any device, including the UE, the first base station, and the second base station, is within the protection scope of the embodiments of the present invention.
  • the UE in the state stores the The UE is in the connection context of the connection state, and performs cell camping by the cell reselection criterion during the mobile process, and the UE in the low overhead state receives the source identifier sent by the source base station, and is in the process of moving After the condition is met, the source identifier is reported to the current serving base station of the UE, and finally sent by the serving base station to the source base station, so that both the serving base station and the source base station can obtain the location information of the UE.
  • the UE autonomously performs the mobility based on the cell reselection, and only reports the location change information of the UE, which simplifies the handover process and saves the communication resources of the network device. Further, since the source base station and the UE both store the connection context of the UE after entering the low-overhead state, when the UE needs to perform uplink or downlink data communication, the connection context of the UE may be switched to the current UE. The service base station, in turn, performs data transmission to ensure the efficiency of data transmission.
  • FIG. 4 is a schematic flowchart of still another method for mobility management according to an embodiment of the present invention. The description will be made from the interaction between the first base station, the UE, and the second base station in conjunction with FIG. 4, as shown in FIG. As shown, the method can include the following steps S401 - S410.
  • Step S401 The first base station to which the first cell belongs is allocated a source identifier to the UE in the connected state in the first cell by using a cell broadcast message, a dedicated message, or a random access channel RACH procedure.
  • Step S402 The user equipment UE in the connected state in the first cell receives the source identifier allocated by the first base station to which the first cell belongs, and the source identifier includes the UE that uniquely identifies the UE in the first base station cell. First UE identity.
  • Step S403 The UE enters a low overhead state when the preset activation condition is met.
  • the UE stores the connection context of the UE in the connected state, and passes the cell reselection criterion during the mobile process. Perform cell resident.
  • Step S404 After the first base station determines that the UE enters a low-overhead state, storing a connection context of the UE in a connected state, where the UE stores the connection context in the low-overhead state, and in the moving process The cell camping is performed by the cell reselection criterion.
  • Step S405 When the first preset condition is met, the UE reports the source identifier to the second base station to which the second cell belongs, and the second cell is the serving cell where the UE currently camps.
  • Step S406 The second base station to which the second cell belongs receives the source identifier reported by the user equipment UE in the low-overhead state, where the UE stores the UE in the connected state in the low-overhead state. Connecting a context, and performing cell camping by using a cell reselection criterion, where the first cell is a serving cell when the UE enters the low-overhead state, and the second cell is a current serving cell of the UE
  • the source identifier includes a first UE identifier that identifies the UE in a first base station to which the first cell belongs;
  • Step S407 The second base station sends the first UE identifier to the first base station according to the source identifier.
  • step S401 to step S407 may refer to step S201 to step S207 in the foregoing embodiment of FIG. 2, and details are not described herein again.
  • Step S408 When the downlink data of the UE reaches the first base station, the first base station sends the connection context and the source identifier of the UE to the second base station, where the second base station is the The base station to which the second cell belongs.
  • the first base station when the downlink data of the UE reaches the first base station, the first base station sends the connection context and the source identifier of the UE to the second base station, so that the second base station performs data communication with the UE according to the connection context, and the first base station further The downlink data of the UE is forwarded to the second base station, so that the second base station that is the current serving base station of the UE can send the downlink data to the UE.
  • Step S409 Receive the connection context sent by the first base station and the source identifier of the UE.
  • Step S410 Determine configuration information of the UE according to the received connection context and the source identifier, and trigger the UE to perform uplink access according to the source identifier.
  • step S409 to step S410 may refer to step S207 in the foregoing embodiment of FIG. 2, and details are not described herein again.
  • the interaction process implemented by the present invention does not limit all the steps to be performed at the same time, that is, the processing steps of the UE, the first base station, and the second base station may be in the UE device, the first base station device, and the second base station device. They are executed independently.
  • the implementation of any device, including the UE, the first base station, and the second base station, is within the protection scope of the embodiments of the present invention.
  • the UE in the state stores the connection context of the UE in the connected state, and performs cell camping by the cell reselection criterion during the mobile process, and at the same time, at the low
  • the UE in the overhead state receives the source identifier sent by the source base station, and reports the source identifier to the current serving base station of the UE in the process of moving and satisfying certain conditions.
  • the base station is sent by the serving base station, so that both the serving base station and the source base station can obtain the location information of the UE.
  • the UE autonomously performs the mobility based on the cell reselection, and only reports the location change information of the UE, which simplifies the handover process and saves the communication resources of the network device. Further, since the source base station and the UE both store the connection context of the UE after entering the low-overhead state, when the UE needs to perform uplink or downlink data communication, the connection context of the UE may be switched to the current UE. The service base station, in turn, performs data transmission to ensure the efficiency of data transmission.
  • FIG. 8 is a schematic flowchart of still another method for mobility management according to an embodiment of the present invention. The description will be made from the interaction between the first base station, the UE, and the second base station in conjunction with FIG. 8 , as shown in FIG. 8 . As shown, the method can include the following steps S501 - S506.
  • Step S501 The first base station to which the first cell belongs is allocated a source identifier to the UE in the connected state in the first cell by using a cell broadcast message, a dedicated message, or a random access channel RACH procedure.
  • Step S502 The user equipment UE in the connected state in the first cell receives the source identifier allocated by the first base station to which the first cell belongs, and the source identifier includes the UE that uniquely identifies the UE in the first base station cell. First UE identity.
  • Step S503 The UE enters a low overhead state when the preset activation condition is met.
  • the UE stores the connection context of the UE in the connected state, and passes the cell reselection criterion during the mobile process. Perform cell resident.
  • Step S504 After the first base station determines that the UE enters a low-overhead state, storing a connection context of the UE in a connected state, where the UE stores the connection context in the low-overhead state, and in the moving process The cell camping is performed by the cell reselection criterion.
  • Step S505 When the first preset condition is met, the UE reports the source identifier to the second base station to which the second cell belongs, and the second cell is a serving cell where the UE currently camps.
  • step S501 to step S505 may refer to step S201 to step S205 in the foregoing embodiment of FIG. 2, and details are not described herein again.
  • Step S506 When the downlink data of the UE reaches the first base station or the first paging message from the core network device arrives at the first base station, the first base station sends a second paging message to the third base station,
  • the third base station is a base station that belongs to the same paging area range as the first base station.
  • the UE in the low-overhead state can be moved in a certain area according to the configuration. Knowing the base station, this will cause the first base station to be unable to guide the exact location of the UE, and can only page the UE according to a certain range.
  • step S505 the UE reports the source identifier to the second base station to which the second cell belongs when the UE meets the first preset condition, where the first predetermined condition includes that the UE currently camps The second cell is beyond the specified cell set range; or the second cell and the first cell currently camped by the UE do not belong to the same preset area or the same base station; therefore, the UE is in the cell set or When moving in the same preset area, the UE may not be sent to the second base station, and the first base station may not know whether the UE is within the cell set or the specific cell in the set area, and define the cell set or The preset area is a paging area.
  • the set of cells is configured to be sent to the UE when the UE enters a low-overhead state
  • the preset area is an area where the serving cell to which the UE belongs when the UE enters a low-overhead state. Therefore, the first base station needs to send a second paging message to the third base station, and the third base station sends a paging to the UE according to the second paging message, and if the third base station receives the paging response message of the UE, Returning a second paging response message to the first base station, the first base station may be aware that the current UE is in the third base station, and may trigger the sending of the UE context to the third base station. At the same time, the first base station also sends a page to the UE to confirm whether the UE is located in the first base station.
  • the first base station determines to release the UE, the first base station sends a connection release indication to the second base station, and the second base station may according to the connection release indication pair
  • the UE performs a connection release operation.
  • the connection release indication may be carried in the second paging message or the connection release indication is carried in a first base station sending a context transfer message to the second base station.
  • the second base station carries a release indication according to the connection release indication, and the second base station notifies the UE to perform connection release when receiving the connection recovery request of the UE.
  • the notifying the UE to perform the connection release may be specifically sending a connection reject message to the UE, where the reject message is used to notify the UE to delete the saved connection context.
  • the connection release indication may further carry a connection release reason, and the second base station carries a release reason in a paging parameter sent to the UE according to the connection release reason, or the second base station according to the The reason for the connection release is that the connection rejection message sent to the UE carries the reason for the release.
  • the connection release reason may specifically be load balancing tracking area update, circuit domain fallback request, resource release or encryption/decryption failure.
  • the connection release indication may further carry a state of the UE that is required to be released, and the second base station carries the UE that requires the release of the paging parameter in the paging parameter sent to the UE according to the state of the UE released according to the requirement.
  • the first base station determines to release the UE, and the first base station receives a connection release request sent by the core network, or the first base station determines that the UE needs to be released according to the load.
  • the base station needs to obtain the paging parameter information of the UE from the core network before the base station arrives to trigger the paging according to the downlink data.
  • the paging parameter includes a paging index of the UE or a UE DRX cycle.
  • the paging index of the UE may be a calculated UE index value according to an International Mobile Subscriber Identification Number (IMSI) of the UE, where the paging index is used by the base station to calculate the UE Calling time.
  • IMSI International Mobile Subscriber Identification Number
  • the UE paging index is IMSI mod 1024.
  • the paging index may be a residual operation of the other values by the IMSI, which is not limited herein.
  • the paging parameter is used to calculate a paging offset of the UE, and the DRX cycle is a DRX cycle configured by the UE at a high level.
  • the specific message that the base station obtains the paging parameter information of the UE from the core network may be an initial context setup message, or a context modification message, or an E-RAB setup message, or an E-RAB modification message, or a handover message.
  • the handover message is a message related to the handover, such as a handover request message or a path switch message, sent by the core network to the access network during the UE handover process.
  • the base station After the base station acquires the paging parameter information of the UE from the core network, if the serving base station of the UE changes, the base station needs to send the paging parameter of the UE to the changed target serving base station. Specifically, if the UE is in a connected state when the serving base station changes, the base station sends the paging parameter in a handover message to a target serving base station of the UE, or if the UE is in a serving base station When the change is in a low-overhead state, the base station sends the paging parameter carrying a context transfer message to the target serving base station of the UE.
  • the first base station triggers paging according to a paging from the core network device, and the first base station acquires paging parameter information of the UE from the paging message.
  • the paging parameter includes a paging index of the UE or a UE DRX cycle.
  • the second paging message sent by the first base station to the third base station includes a paging parameter, where the paging parameter includes a paging index of the UE or a UE DRX cycle.
  • the second paging message sent by the first base station to the third base station includes a paging parameter, where the paging parameter includes a source identifier of the UE.
  • the interaction process implemented by the present invention does not limit all steps to be performed simultaneously, that is, The processing steps of the UE, the first base station, and the third base station may be independently performed in the UE device, the first base station device, and the second base station device, respectively.
  • the implementation of any device, including the UE, the first base station, and the third base station, is within the protection scope of the embodiments of the present invention.
  • the UE in the state stores the connection context of the UE in the connected state, and performs cell camping by the cell reselection criterion during the mobile process. That is, after the UE enters the low-overhead state, the UE autonomously performs the mobility based on the cell reselection, and only reports the location area change information of the UE, which simplifies the handover process and saves the communication resources of the network device. Further, since the source base station and the UE both store the connection context of the UE after entering the low-overhead state, when the UE needs to perform uplink or downlink data communication, the connection context of the UE may be switched to the current UE. The service base station, in turn, performs data transmission to ensure the efficiency of data transmission.
  • the present invention also provides related base stations and user equipments for implementing the foregoing method embodiments.
  • the following is a detailed description of the related base station and user equipment provided by the present invention shown in FIG. 5, FIG. 6, and FIG.
  • FIG. 5 is a base station 10 according to an embodiment of the present invention.
  • the base station 10 is a first base station, and the base station 10 includes an output unit 102, a storage unit 103, and a processing unit 104, some of the present invention.
  • the input unit 101, the storage unit 103, and the processing unit 104 may be connected by a bus or other means, wherein the connection by the bus is taken as an example in FIG.
  • the processing unit 104 calls the program code in the storage unit 103 to perform the following operations:
  • a source identifier to a user equipment UE in a connected state in the first cell, where the source identifier includes a first UE identifier that identifies the UE in the first base station;
  • the UE After determining that the UE enters a low-overhead state, storing a connection context of the UE in a connected state, where the UE enters the low-overhead state when a preset activation condition is met, where the low-overhead state is The UE stores the connection context and performs cell camping by cell reselection criteria during the move.
  • the source identifier includes a first cell identifier that identifies the first cell, and a first UE identifier that uniquely identifies the UE in the first cell, where the first cell identifier is Include a cell global identifier ECGI, a physical cell identity PCI, or an area identifier and the first cell At least one of the cell identifiers formed by the identifiers in the area; or
  • the source identity includes a first base station identity that uniquely identifies the first base station and a first UE identity that uniquely identifies the UE within the first base station.
  • the processing unit 104 is configured to allocate a source identifier to the user equipment UE in the connected state in the first cell by using the output unit 102, specifically:
  • the source identifier is allocated to the UE in the connected state in the first cell by the cell broadcast message, the dedicated message output by the output unit 102, or in the random access channel RACH procedure.
  • the preset activation condition includes at least one of the following conditions:
  • the first base station does not perform data transmission with the UE within a first preset duration
  • the first base station determines that the UE enters the discontinuous reception DRX state, and does not exit the DRX state within a third preset duration.
  • processing unit 104 is further configured to:
  • the output unit 102 After determining that the UE enters a low overhead state, the output unit 102 sends radio resource control RRC configuration information to the UE for use by the UE in the low overhead state.
  • the RRC configuration information includes an RRC configuration index, where the configuration index is used to indicate the RRC configuration information.
  • the base station further includes an input unit 101; the processing unit 104 is further configured to:
  • the notification message sent by the second base station to which the second cell belongs is received by the input unit 101, where the notification message carries the source identifier of the UE and the UE a second cell identifier of the second cell that is currently located, where the second cell is a serving cell where the UE currently camps;
  • processing unit 104 is further configured to:
  • the connection context is And the source identifier of the UE is sent to the second base station by using the output unit 102, where the second base station is a base station to which the second cell belongs.
  • the base station further includes an input unit 101;
  • the notification message carries verification information of the UE, and the verification information is that the UE is in accordance with the source identifier and the connection context.
  • the processing unit 104 is further configured to:
  • the input unit 101 After receiving the notification message sent by the second base station, the input unit 101 determines whether the UE is a legal UE according to the source identifier and the verification information.
  • the base station further includes an input unit 101; the processing unit 104 is further configured to:
  • the input unit 101 receives a transfer request of the connection context sent by the second base station to which the second cell belongs, where the transfer request carries the source of the UE Identifying that the second cell is a cell where the UE currently camps;
  • the base station further includes an input unit 101; the processing unit 104; the output unit 102 is further configured to:
  • the first base station When the downlink data of the UE reaches the first base station or the page from the core network device arrives at the first base station, the first base station sends a paging message to the third base station by using the output unit 102, where the third base station It is a base station that belongs to the same paging area range as the first base station.
  • the input unit 101 is configured to receive a paging response message of the UE from the third base station, and the first base station can know that the current UE is in the third base station.
  • the input unit 101 is further configured to: before the downlink data arrives at the base station, the base station needs to acquire paging parameter information of the UE from the core network.
  • the paging parameter includes a paging index of the UE or a UE DRX cycle.
  • FIG. 6 is a user equipment UE 20 according to an embodiment of the present invention.
  • the UE 20 may include an input unit 201, an output unit 202, a storage unit 203, and a processing unit 204.
  • the bus is used to implement the communication connection between the components.
  • the input unit 201 is specifically a touch panel of the terminal, and includes a touch screen and a touch screen for detecting an operation instruction on the touch panel of the terminal.
  • the output unit 202 may include a display of the terminal for outputting, displaying images or data; the memory 203 may be a high-speed RAM display or a non-volatile memory, such as at least one disk display, and the memory 203 is optional. It may also be at least one display device located remotely from the aforementioned processor 201.
  • an operating system, a network communication module, a user interface module, and a data processing program may be included in the memory 203 as a computer display medium.
  • the processing unit 204 of the UE in FIG. 6 invokes the program code in the storage unit 203 for performing the following operations:
  • a source identifier that is allocated by the first base station to which the first cell belongs, where the source identifier includes a first UE identifier that uniquely identifies the UE in the first base station cell;
  • the UE When the preset activation condition is met, the UE enters a low overhead state, in which the UE stores a connection context of the UE in a connected state, and performs cell reselection by a cell reselection criterion during the mobile process. Resident
  • the source identifier is reported by the output unit 202 to the second base station to which the second cell belongs, where the second cell is a serving cell where the UE currently camps.
  • the source identifier includes a first cell identifier that identifies the first cell, and a first UE identifier that uniquely identifies the UE in the first cell, where the first cell identifier is At least one of a cell global identifier ECGI, a physical cell identifier PCI, or a cell identifier consisting of an area identifier and an identifier of the first cell in the area; or
  • the source identity includes a first base station identity that uniquely identifies the first base station and a first UE identity that uniquely identifies the UE within the first base station.
  • the preset activation condition includes at least one of the following conditions:
  • the UE leaves the first cell
  • the UE does not perform data transmission with the first base station within a first preset duration
  • the time advance timer of the UE is timed out, or the TA timer of the UE is timed out and the TA timer is not re-runned within the second preset duration;
  • the UE After the UE enters the discontinuous reception DRX state, and does not exit the DRX state within the third preset duration.
  • processing unit 204 is further configured to:
  • the UE After the UE enters a low overhead state when the preset activation condition is met, the UE exits the low overhead state when the second preset condition is met;
  • the second preset condition includes:
  • the serving cell currently camped by the UE exceeds a specified cell set range
  • the serving cell currently camped by the UE and the first cell do not belong to the same preset area or the same base station; or
  • the UE reads the system information broadcast of the second cell, and the system information broadcast does not carry the access indication of the UE in the low overhead state; or
  • the length of the predefined period of time may be the length of time set by the UE, or the length of time configured by the first base station;
  • the UE needs to send uplink data
  • the UE acquires a reference signal measurement result, and the reference signal measurement result and the predetermined first threshold comparison result conform to the preset result.
  • the processing unit 204 is configured to: when the UE meets the second preset condition, exit the low-overhead state, specifically, clearing, when the second preset condition is met, Connect the context and enter the idle state.
  • the first preset condition includes:
  • the second cell currently camped by the UE is outside a specified cell set range
  • the second cell and the first cell currently camped by the UE do not belong to the same preset area or the same base station; or
  • the UE needs to send uplink data.
  • processing unit 204 is further configured to:
  • the output unit 202 before the output unit 202 reports the source identifier to the second base station to which the second cell belongs, the reference signal measurement result is obtained by the input unit 201 and the first predetermined threshold is obtained. Comparing, according to the comparison result, determining, by the output unit 202, sending the source identifier to the second base station.
  • processing unit 204 is further configured to: before the first target condition is met, before the source identifier is reported by the output unit 202 to the second base station to which the second cell belongs,
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the processing unit 204 is configured to report the source identifier to the second base station to which the second cell belongs, specifically:
  • the dedicated UE identifier sent by the second base station and according to the And a transmission resource allocated for transmitting the source identifier by using a random access preamble, where the dedicated UE identifier is an identifier that uniquely identifies the UE in the second cell;
  • the processing unit 204 is configured to determine, according to the confirmation information, whether to apply the dedicated UE identifier, specifically:
  • the processing unit 204 does not apply the dedicated UE identifier according to the confirmation information; or
  • the processing unit 204 applies the dedicated UE identifier according to the acknowledgement information, and exits the low overhead state; or
  • the processing unit 204 applies the dedicated UE identity according to the acknowledgement information, and maintains the low overhead state; or
  • the processing unit 204 applies the dedicated UE identifier according to the instruction in the acknowledgement information indicating that the UE exits the low overhead state, and exits the low overhead state.
  • processing unit 204 is further configured to:
  • the key in the connection context is updated according to the cell identity of the currently camped serving cell.
  • the source identifier further includes verification information, where the verification information is identity verification information generated by the UE according to the source identifier and the updated key.
  • processing unit 204 is further configured to:
  • paging monitoring is performed with the source identifier.
  • processing unit 204 is further configured to:
  • Radio resource control RRC configuration information that is sent by the first base station, where the RRC configuration information includes an RRC configuration index, where the configuration index is used to indicate the RRC configuration information;
  • the UE uses the RRC configuration information in the low overhead state.
  • the processing unit 204 is configured to: when the first preset condition is met, report the source identifier to the second base station to which the second cell belongs, specifically:
  • the output unit 202 And reporting, by the output unit 202, the source identifier that includes the RRC configuration index to the second base station to which the second cell belongs, so that the second base station determines, according to the RRC configuration index, the RRC used by the UE. Configuration information.
  • the processing unit 204 is configured to: the first preset condition is that the UE needs to send uplink data, and report the source identifier to a second base station to which the second cell belongs, where for:
  • the uplink data indication including the source identifier is reported by the output unit 202 to the second base station to which the second cell belongs.
  • the processing unit 204 is configured to: the first preset condition is that the UE needs to send uplink data, and report the source identifier to a second base station to which the second cell belongs, where for:
  • the indication information of the second base station is reported by the output unit 202 to the second base station to which the second cell belongs to report the long source identifier or the short source identifier.
  • FIG. 7 is a base station 30 according to an embodiment of the present invention.
  • the base station 30 is a second base station, where the base station 30 includes an input unit 301, an output unit 302, a storage unit 303, and a processing unit 304.
  • the input unit 301, the storage unit 303, and the processing unit 304 may be connected by a bus or other means, wherein the bus connection is taken as an example in FIG.
  • the processing unit 304 invokes the program code in the storage unit 303 to perform the following operations:
  • the UE Receiving, by the input unit 301, the source identifier reported by the user equipment UE in the low-overhead state, wherein the UE stores the connection context of the UE in the connected state in the low-overhead state, and passes during the mobile process
  • the cell reselection criterion is performed by the cell, the first cell is a serving cell when the UE enters the low overhead state, the second cell is a current serving cell of the UE, and the source identifier is included in the Identifying, by the first base station to which the first cell belongs, the first UE identifier of the UE;
  • the output unit 302 Sending, by the output unit 302, the first UE identifier to the first base station according to the source identifier, to notify the first base station to learn that the current serving cell of the UE is the second cell.
  • the source identifier includes a first cell identifier that identifies the first cell, and a first UE identifier that uniquely identifies the UE in the first cell, where the first cell identifier is At least one of a cell global identifier ECGI, a physical cell identifier PCI, or a cell identifier consisting of an area identifier and an identifier of the first cell in the area; or
  • the source identity includes a first base station identity that uniquely identifies the first base station and a first UE identity that uniquely identifies the UE within the first base station.
  • the source identifier further includes indication information, where the indication information is used to notify the second base station that the UE is in the low overhead state.
  • processing unit 304 is further configured to:
  • the system information broadcast is sent by the output unit 302, and the system information carries the UE access in the low-overhead state. Instructing, in order for the UE to determine, according to the access indication, whether to send the source identifier to the second base station.
  • the processing unit 304 is further configured to: before the source identifier reported by the user equipment UE in the low-overhead state, is received by the input unit 301,
  • the output unit 302 allocates a preset size transmission resource to the UE, so that the UE sends the source identifier by using the transmission resource.
  • the random access preamble in the preset range is a predefined preamble or a preamble configured to receive the second base station.
  • the processing unit 304 is configured to receive, by using the input unit 301, the source identifier reported by the user equipment UE in the low-overhead state, specifically:
  • the output unit 302 assigning, by the output unit 302, a dedicated UE identifier and a transmission resource for transmitting the source identifier to the UE according to the random access preamble, where the dedicated UE identifier is a unique identifier in the second cell.
  • the confirmation information including the source identifier is sent to the UE by the output unit 302.
  • the processing unit 304 sends, by using the output unit 302, the acknowledgement information including the source identifier to the UE, specifically:
  • the processing unit 304 sends the first UE identifier to the first base station according to the source identifier by using the output unit 302, specifically:
  • the notification message Sending, by the output unit 302, the notification message to the first base station according to the source identifier, where the notification message carries the source identifier of the UE and the second cell identifier of the second cell where the UE is currently located, And determining, by the first base station, that the serving cell currently camped by the UE is the second cell according to the source identifier and the second cell identifier.
  • processing unit 304 is further configured to:
  • the output unit 302 Receiving, by the output unit 302, the first UE identifier, according to the source identifier, to the first base station, and receiving an uplink data indication that is sent by the UE and includes the source identifier;
  • connection context is a connection of the UE in a connected state stored by the first base station in a low-overhead state of the UE Context
  • the context transfer request carries a source identifier of the UE
  • processing unit 304 is further configured to:
  • the output unit 302 sends a reassigned source identifier to the UE, where the reassigned source identifier is included in the second base station. Identifying a second UE identifier of the UE;
  • processing unit 304 is further configured to:
  • the processing unit 304 is configured to trigger the uplink access by the UE according to the source identifier, specifically:
  • the source identifier further includes a radio control resource RRC configuration index
  • the processing unit 304 is further configured to:
  • the RRC configuration information used by the UE is determined according to the RRC configuration index.
  • the processing unit 304 is configured to send, by using the output unit 302, the first UE identifier to the first base station according to the source identifier, specifically:
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic Devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and schematic diagrams disclosed in the embodiments of the present invention may be implemented or executed.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the disclosed systems, devices, and methods 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 units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. 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 functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used 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 U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本发明实施例公开了一种移动性管理的方法、用户设备和基站,其中的移动性管理的方法可包括:处于连接态的用户设备UE从第一基站接收UE源标识,所述源标识用于在第一基站内唯一识别所述UE,所述UE满足低开销激活条件后进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留;在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。采用本发明实现了在UE进入低开销状态状态后,自主进行基于小区重选的移动性,仅上报UE的位置变化信息,简化了切换流程,节省了网络设备的通信资源。

Description

移动性管理的方法、用户设备和基站
本申请要求于2015年12月31日递交国际专利局、申请号为PCT/CN2015/100336,发明名称为“移动性管理的方法、用户设备和基站”的国际专利申请的优先权,并且要求于2016年3月31日递交国际专利局、申请号为PCT/CN2016/078165,发明名称为“移动性管理的方法、用户设备和基站”的国际专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本发明实施例涉及通信领域,并且更具体地,涉及一种移动性管理的方法、用户设备和基站。
背景技术
移动性管理是无线移动通信系统中重要的工作。通常,移动性管理可以包括用户设备(User Equipment,UE)的移动网络切换、小区重选等。
在第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)的长期演进(Long Term Evolution,LTE)/LTE高级演进(LTE-advanced,LTE-A)系统中,UE分为空闲(Idle)态和连接态:处于空闲态的UE和基站没有连接,不能发送数据,并在移动过程中执行小区重选。如果该状态的UE需要发送数据则首先要转入连接态。空闲态的UE可通过无线资源控制(Radio Resource Control,RRC)连接建立过程获得连接上下文和UE小区内专用标识后进入连接态;处于连接态的UE与基站连接,可以发送数据,并在移动过程中执行切换(handover),连接态UE可通过RRC连接释放过程进入空闲态。
处在连接态的UE进行切换的典型流程可能包括如下关键步骤:源基站,即UE当前的服务基站,为UE配置测量参数;UE进行测量并向源基站上报测量结果;源基站向目标基站发送切换请求,并在目标基站确认后向UE发送切换命令;以及UE接入目标基站,获得上行同步,并发送切换完成消息等。
在未来的网络演进中,各种布网形态越来越多,比如异构网络 (Heterogeneous network,Hetnet),多点协作(Coordinated Multiple Points,CoMP)传输,小小区组网,小小区密集组网等。这些布网形态对UE的移动性管理提出了新的挑战,如果仍沿用当前切换的流程,UE需要持续进行测量和上报,且带来大量的切换信令开销,浪费无线资源。
发明内容
本发明实施例所要解决的技术问题在于,提供一种移动性管理的方法、用户设备和基站,解决了现有技术中,无需进行数据传输的连接态UE在移动过程中因频繁切换导致的切换信令开销和无线资源的浪费。
第一方面,本发明实施例提供一种移动性管理的方法,该方法可包括:
第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配源标识,所述源标识包括在所述第一基站内识别所述UE的第一UE标识;
当判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,所述UE在满足预设激活条件时进入所述低开销状态,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
通过本实施例的移动性管理方法,在UE进入低开销状态后,基站无需在UE移动过程中频繁参与切换流程,并且保存了该UE的连接上下文,以便于在该UE需要进行数据传输的时候,可以随时进行该连接上下文的转移,节省了网络设备的通信资源,提高了网络通信的效率。
在一个可能的设计中,所述第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配源标识,包括:
所述第一小区所属的第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
在一个可能的设计中,所述预设激活条件包括以下条件中的至少一项:
所述第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令;
所述第一基站在第一预设时长内未与所述UE进行数据传输;
所述第一基站确定所述UE的时间提前量定时器TA timer超时,或所述第 一基站确定所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
所述第一基站确定所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
在一个可能的设计中,所述当判断所述UE进入低开销状态之后,还包括:
所述第一基站向所述UE发送无线资源控制RRC配置信息,以供所述UE在所述低开销状态下使用。
在一个可能的设计中,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息。
在一个可能的设计中,所述当判断所述UE进入低开销状态后,还包括:
所述第一基站接收所述第二小区所属的第二基站发送的通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,所述第二小区为UE当前驻留的服务小区;
所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
在一个可能的设计中,所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区之后,还包括:
当所述UE的下行数据到达所述第一基站时,所述第一基站将所述连接上下文以及所述UE的源标识发送至第二基站,所述第二基站为所述第二小区所属的基站。
通过本实施例的移动性管理方法,在UE进入低开销状态后,基站无需在UE移动过程中频繁参与切换流程,节省了网络设备的通信资源。当基站有下行数据需要向该UE发送时,可根据UE向网络上报的位置信息,主动将UE的上下文切换到UE当前所在的基站,保证了数据传输的效率。
在一个可能的设计中,所述通知消息携带所述UE的验证信息,所述验证信息为所述UE根据所述源标识和所述连接上下文中包含的密钥生成的身份校验信息;
所述第一基站接收所述第二基站发送的通知消息之后,还包括:
所述第一基站根据所述源标识以及所述验证信息确定所述UE是否为合法 UE。
在一个可能的设计中,所述当判断所述UE进入低开销状态后,还包括:
接收所述第二小区所属的第二基站发送的所述连接上下文的转移请求,所述转移请求中携带有所述UE的源标识,所述第二小区为UE当前驻留的小区;
根据所述转移请求中携带的所述源标识,将所述连接上下文发送给所述第二基站。
在一个可能的设计中,所述当判断所述UE进入低开销状态后,还包括:
当所述UE的下行数据到达所述第一基站时或者接收到来自核心网的第一寻呼消息后,所述第一基站向第三基站发送第二寻呼消息,所述第三基站和所述第一基站属于同一寻呼区域。
在一个可能的设计中,当所述UE的下行数据到达所述第一基站时或者接收到来自核心网的第一寻呼消息之前,还包括:
接收核心网发送的寻呼参数信息,所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。所述寻呼参数用以计算UE的寻呼偏置。
在一个可能的设计中,所述方法还包括:
所述第二寻呼消息包括寻呼参数,TMSI和/或所述UE的源标识。所述寻呼参数包括,UE的寻呼索引和/或者UE DRX周期。
在一个可能的设计中,所述第一基站向所述第三基站发送第二寻呼消息之后,还包括:
接收第三基站发送的寻呼响应消息,根据所述寻呼响应消息确定所述UE当前位于所述第三基站。
在一个可能的设计中,所述方法还包括:
所述第一基站向UE发送允许所述低开销状态下的所述UE的接入指示;或者
所述第一基站向UE发送允许所述低开销状态下的所述UE上报源标识的类型,所述源标识的类型包括短源标识或者长源标识。或者
第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配短源标识和长源标识。
通过本实施例的移动性管理方法,在UE进入低开销状态后,基站无需在 UE移动过程中频繁参与切换流程,节省了网络设备的通信资源。当UE需要向当前的服务基站发送上行数据时,可根据UE向网络上报的源标识,请求将UE的上下文切换到UE当前所在的基站,保证了数据传输的效率。
第二方面,本发明实施例提供一种移动性管理的方法,该方法可包括:
在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识;
当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留;
在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
通过本实施例的移动性管理方法,在UE进入低开销状态后,自主进行基于小区重选的移动性,仅上报UE的位置变化信息,简化了切换流程,节省了网络设备的通信资源。当UE需要和网络设备进行数据通信时,可以向网络发送通知,以便网络将UE的上下文切换到UE当前所在的基站保证了数据传输的效率。
在一个可能的设计中,所述预设激活条件包括以下条件中的至少一项:
所述UE接收所述第一基站指示的进入低开销状态的控制指令;
所述UE离开所述第一小区;
所述UE在第一预设时长内未与所述第一基站进行数据传输;
所述UE的时间提前量定时器TA timer超时,或所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
在一个可能的设计中,所述当满足预设激活条件时所述UE进入低开销状态之后,还包括:
所述UE在满足第二预设条件时退出所述低开销状态;
所述第二预设条件,包括:
所述UE当前驻留的服务小区变更;或
所述UE当前驻留的服务小区超出指定的小区集合范围;或
所述UE当前驻留的服务小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE向所述第二基站发送源标识并且收到所述第二基站针对所述源标识的拒绝接入指示;或
所述UE读取所述第二小区的系统信息广播,系统信息广播未携带允许所述低开销状态下的所述UE的接入指示;或
所述UE需要发送上行数据。
在一个可能的设计中,所述UE在满足第二预设条件时退出所述低开销状态,包括:所述UE在满足第二预设条件时清除所述连接上下文,进入空闲态。
在一个可能的设计中,所述第一预设条件包括:
所述UE当前驻留的服务小区变更;或
所述UE当前驻留的所述第二小区超出指定的小区集合范围;或
所述UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE需要发送上行数据。
在一个可能的设计中,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识之前,包括:
所述UE接收并读取所述第二小区的系统信息广播;
若所述系统信息广播携带有允许所述低开销状态下的所述UE的接入指示,则所述UE根据所述接入指示确定向所述第二基站发送所述源标识。
或者,所述UE根据第二基站的发送的指示信息确定上报长源标识或者短源标识。其中,长源标识和短源标识可以是两个独立的源标识,或者所述短源标识是所述长源标识的部分信息。
在一个可能的设计中,在满足第一预设条件时,所述第二基站的指示信息是通过系统广播配置的指示信息,或者通过授权命令发送给UE的授权信息,所述UE根据第二基站的指示信息确定上报长源标识或者短源标识,包括:
所述UE根据所述系统广播配置的指示信息中的指示确定源标识上报使用的源标识类型。
或者所述UE根据授权信息判断出可以传输的消息大小,并根据可以传输的消息大小选择使用长源标识或者短源标识。
在一个可能的设计中,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识之前,还包括:
所述UE向所述第二基站发送预设范围内的随机接入前导码,所述预设范围内的随机接入前导码用于指示需要向所述第二基站发送所述源标识或者需要向所述第二基站发送大于预设长度门限的消息;
接收所述第二基站分配的用于传输所述源标识的预设大小传输资源;
利用所述传输资源将所述源标识发送给所述第二基站。
在一个可能的设计中,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在一个可能的设计中,所述UE向第二小区所属的第二基站上报所述源标识,包括:
所述UE向所述第二基站发送随机接入前导码;
接收所述第二基站发送的专用UE标识和根据所述随机接入前导码分配的用于传输所述源标识的传输资源,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
利用所述传输资源将所述源标识发送给所述第二基站;
接收所述第二基站发送的包含所述源标识的确认信息;
根据所述确认信息确定是否应用所述专用UE标识。
在一个可能的设计中,所述根据所述确认信息确定是否应用所述专用UE标识,包括:
所UE根据所述确认信息不应用所述专用UE标识;或
所述UE根据所述确认信息应用所述专用UE标识,并且退出所述低开销状态;或
所述UE根据所述确认信息应用所述专用UE标识,并且保持所述低开销状态;或
所述UE根据所述确认信息中携带的指示所述UE退出低开销状态的指令,应用所述专用UE标识,并退出低开销状态。
在一个可能的设计中,所述UE应用所述专用UE标识之后,包括:
根据当前驻留的服务小区的小区标识更新所述连接上下文中的密钥。
在一个可能的设计中,所述源标识还包括验证信息,所述验证信息为所述UE根据所述源标识和更新后的密钥生成的身份校验信息。
在一个可能的设计中,当满足预设激活条件时所述UE进入低开销状态之后,还包括:
所述UE以所述源标识进行寻呼监听。
在一个可能的设计中,当满足预设激活条件时所述UE进入低开销状态之后,还包括:
接收第一基站发送的无线资源控制RRC配置信息,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息;
所述UE在所述低开销状态下使用所述RRC配置信息。
在一个可能的设计中,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,包括:
所述UE向所述第二小区所属的第二基站上报包括所述RRC配置索引的所述源标识,以便于所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在一个可能的设计中,所述第一预设条件为所述UE需要发送上行数据,所述UE向第二小区所属的第二基站上报所述源标识,还包括:
在上报所述源标识的同时或之后,所述UE向第二小区所属的第二基站上报上行数据指示。
第三方面,本发明实施例提供一种移动性管理的方法,该方法可包括:
第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识,其中,在所述低开销状态下所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识;
根据所述源标识将所述第一UE标识发送给所述第一基站,以通知所述第一基站获知所述UE当前的服务小区为所述第二小区。
通过本实施例的移动性管理方法,在UE进入低开销状态后,网络设备无需在UE移动过程中频繁参与切换流程,节省了网络设备的通信资源。当网络设备需要与UE进行数据通信时,可根据UE向网络上报的位置信息,将UE的上下文切换到UE当前所在的基站,保证了数据传输的效率。
在一个可能的设计中,所述源标识还包括指示信息,所述指示信息用于向所述第二基站通知所述UE处于所述低开销状态。
在一个可能的设计中,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识之前,包括:
所述第二基站发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE接入指示,以便于所述UE根据所述接入指示确定是否向所述第二基站发送所述源标识。
在一个可能的设计中,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识之前,还包括:
接收UE发送的随机接入前导码;
当所述随机接入前导码在预设范围时,向所述UE分配预设大小传输资源,以使得所述UE利用所述传输资源发送所述源标识。
在一个可能的设计中,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在一个可能的设计中,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识,包括:
所述第二小区所属的第二基站接收在低开销状态下的用户设备UE发送的随机接入前导码;
根据所述随机接入前导码分配专用UE标识和用于传输所述源标识的传输资源给所述UE,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
利用所述传输资源接收所述源标识;
发送包含所述源标识的确认信息给所述UE。
在一个可能的设计中,所述发送包含所述源标识的确认信息给所述UE,包括:
发送包含所述源标识且携带有指示所述UE退出低开销状态的指令的确认消息给所述UE,以便于所述UE根据所述指令应用所述专用UE标识,并且退出所述低开销状态。
在一个可能的设计中,所述根据所述源标识将所述第一UE标识发送给所述第一基站,包括:
根据所述源标识向所述第一基站发送通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,以使得所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
在一个可能的设计中,所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,还包括:
接收所述UE发送的包含有所述源标识的上行数据指示;
所述第二基站向所述第一基站发送所述连接上下文的转移请求,所述连接上下文为所述第一基站在所述UE进入低开销状态下存储的所述UE在连接态的连接上下文,所述上下文转移请求中携带UE的源标识;
接收第一基站转移的所述连接上下文,并根据所述连接上下文建立于所述UE的连接。
在一个可能的设计中,所述接收第一基站转移的所述连接上下文之后,还包括:
向所述UE发送重新分配的源标识,所述重新分配的源标识包括在所述第二基站内识别所述UE的第二UE标识;
向所述UE发送指令指示所述UE退出所述低开销状态。
在一个可能的设计中,所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,还包括:
接收所述第一基站发送的所述连接上下文以及所述UE的源标识;
根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
在一个可能的设计中,所述根据所述源标识触发所述UE进行上行接入,包括:
以所述源标识向所述UE发起寻呼;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发送上行接入命令;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发起寻呼。
在一个可能的设计中,所述源标识还包括无线控制资源RRC配置索引,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识之后,还包括:
所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在一个可能的设计中,所述根据所述源标识将所述第一UE标识发送给所述第一基站,包括:
根据所述源标识,通过和所述第一基站之间的基站间接口向所述第一基站发送所述源标识;或
根据所述源标识,通过核心网向所述第一基站发送所述源标识。
第四方面,本发明实施例提供一种基站,其特征在于,所述基站为第一基站,所述第一基站可包括:输出单元、存储单元和处理单元;
其中,所述存储单元用于存储程序代码,所述处理单元用于调用所述存储单元存储的程序代码执行如下步骤:
通过所述输出单元向所述第一小区中处于连接态的用户设备UE分配源标识,所述源标识包括在所述第一基站内识别所述UE的第一UE标识;
当判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,所述UE在满足预设激活条件时进入所述低开销状态,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
在一个可能的设计中,所述处理单元,用于通过所述输出单元向所述第一小区中处于连接态的用户设备UE分配源标识,具体为:
通过所述输出单元输出的小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
在一个可能的设计中,所述预设激活条件包括以下条件中的至少一项:
所述第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令;
所述第一基站在第一预设时长内未与所述UE进行数据传输;
所述第一基站确定所述UE的时间提前量定时器TA timer超时,或所述第一基站确定所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
所述第一基站确定所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
在一个可能的设计中,所述处理单元还用于:
通过所述输出单元向所述UE发送无线资源控制RRC配置信息,以供所述UE在所述低开销状态下使用。
在一个可能的设计中,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息。
在一个可能的设计中,所述基站包括还包括输入单元;所述处理单元还用于:
当判断所述UE进入低开销状态后,通过所述输入单元接收所述第二小区所属的第二基站发送的通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,所述第二小区为UE当前驻留的服务小区;
根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
在一个可能的设计中,所述处理单元还用于:
根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区之后,当所述UE的下行数据到达所述第一基站时,将所述连接上下文以及所述UE的源标识通过所述输出单元发送至第二基站,所述第二基站为所述第二小区所属的基站。
在一个可能的设计中,所述基站还包括输入单元;所述通知消息携带所述UE的验证信息,所述验证信息为所述UE根据所述源标识和所述连接上下文中包含的密钥生成的身份校验信息;
所述处理单元还用于:
通过所述输入单元接收所述第二基站发送的通知消息之后,根据所述源标识以及所述验证信息确定所述UE是否为合法UE。
在一个可能的设计中,所述基站还包括输入单元;所述处理单元还用于:
当判断所述UE进入低开销状态后,通过所述输入单元接收所述第二小区所属的第二基站发送的所述连接上下文的转移请求,所述转移请求中携带有所述UE的源标识,所述第二小区为UE当前驻留的小区;
根据所述转移请求中携带的所述源标识,通过所述输出单元将所述连接上下文发送给所述第二基站。
在一个可能的设计中,所述基站包括还包括处理单元;所述处理单元还用于:
通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE上报源标识的类型,以便于所述UE根据所述源标识的类型确定采用短源标识或者长源标识。
或者,通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元向UE分配短源标识和长源标识。
或者,通过所述输入单元接收下行数据到达所述第一基站时或者接收到来自核心网的第一寻呼消息后,通过所述输出单元向第三基站发送第二寻呼消息。所述第三基站和所述第一基站属于同一寻呼区域。
或者,通过所述输入单元接收下行数据到达所述第一基站之前,通过所述输入单元向接收核心网发送的寻呼参数信息,所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。所述寻呼参数用以计算UE的寻呼偏置。
第五方面,本发明实施例提供一种用户设备UE,该用户设备UE可包括:输入单元、输出单元、存储单元和处理单元;
其中,所述存储单元用于存储程序代码,所述处理单元用于调用所述存储单元存储的程序代码执行如下步骤:
通过所述输入单元接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识;
当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留;
在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
在一个可能的设计中,所述预设激活条件包括以下条件中的至少一项:
所述UE接收所述第一基站指示的进入低开销状态的控制指令;
所述UE离开所述第一小区;
所述UE在第一预设时长内未与所述第一基站进行数据传输;
所述UE的时间提前量定时器TA timer超时,或所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
在一个可能的设计中,所述处理单元还用于:
当满足预设激活条件时所述UE进入低开销状态之后,所述UE在满足第二预设条件时退出所述低开销状态;
所述第二预设条件,包括:
所述UE当前驻留的服务小区变更;或
所述UE当前驻留的服务小区超出指定的小区集合范围;或
所述UE当前驻留的服务小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE向所述第二基站发送源标识并且收到所述第二基站针对所述源标识的拒绝接入指示;或
所述UE读取所述第二小区的系统信息广播,系统信息广播未携带允许所述低开销状态下的所述UE的接入指示;或
所述UE需要发送上行数据。
在一个可能的设计中,所述处理单元,用于所述UE在满足第二预设条件时退出所述低开销状态,具体为:在满足第二预设条件时清除所述连接上下文,进入空闲态。
在一个可能的设计中,所述第一预设条件包括:
所述UE当前驻留的服务小区变更;或
所述UE当前驻留的所述第二小区超出指定的小区集合范围;或
所述UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE需要发送上行数据。
在一个可能的设计中,所述处理单元还用于:
在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识之前,通过所述输入单元接收并读取所述第二小区的系统信息广播,若所述系统信息广播携带有允许所述低开销状态下的所述UE的接入指示,则根据所述接入指示确定通过所述输出单元向所述第二基站发送所述源标识。
在一个可能的设计中,所述处理单元还用于:在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识之前,
通过所述输出单元向所述第二基站发送预设范围内的随机接入前导码,所述预设范围内的随机接入前导码用于指示需要向所述第二基站发送所述源标识或者需要向所述第二基站发送大于预设长度门限的消息;
通过所述输入单元接收所述第二基站分配的用于传输所述源标识的预设大小传输资源;
利用所述传输资源通过所述输出单元将所述源标识发送给所述第二基站。
在一个可能的设计中,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在一个可能的设计中,所述处理单元,用于向第二小区所属的第二基站上报所述源标识,具体为:
通过所述输出单元向所述第二基站发送随机接入前导码;
通过所述输入单元接收所述第二基站发送的专用UE标识和根据所述随机 接入前导码分配的用于传输所述源标识的传输资源,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
通过所述输出单元利用所述传输资源将所述源标识发送给所述第二基站;
通过所述输入单元接收所述第二基站发送的包含所述源标识的确认信息;
根据所述确认信息确定是否应用所述专用UE标识。
在一个可能的设计中,所述处理单元,用于根据所述确认信息确定是否应用所述专用UE标识,具体为:
所述处理单元根据所述确认信息不应用所述专用UE标识;或
所述处理单元根据所述确认信息应用所述专用UE标识,并且退出所述低开销状态;或
所述处理单元根据所述确认信息应用所述专用UE标识,并且保持所述低开销状态;或
所述处理单元根据所述确认信息中携带的指示所述UE退出低开销状态的指令,应用所述专用UE标识,并退出低开销状态。
在一个可能的设计中,所述处理单元还用于:
所述UE应用所述专用UE标识之后,根据当前驻留的服务小区的小区标识更新所述连接上下文中的密钥。
在一个可能的设计中,所述源标识还包括验证信息,所述验证信息为所述UE根据所述源标识和更新后的密钥生成的身份校验信息。
在一个可能的设计中,所述处理单元还用于:
当满足预设激活条件时所述UE进入低开销状态之后,以所述源标识进行寻呼监听。
在一个可能的设计中,所述处理单元还用于:
当满足预设激活条件时所述UE进入低开销状态之后,通过所述输入单元接收第一基站发送的无线资源控制RRC配置信息,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息;
所述UE在所述低开销状态下使用所述RRC配置信息。
在一个可能的设计中,所述处理单元用于,在满足第一预设条件时,向第二小区所属的第二基站上报所述源标识,具体为:
通过所述输出单元向所述第二小区所属的第二基站上报包括所述RRC配置索引的所述源标识,以便于所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在一个可能的设计中,所述处理单元用于,所述第一预设条件为所述UE需要发送上行数据,向第二小区所属的第二基站上报所述源标识,具体为:
通过所述输出单元向第二小区所属的第二基站上报包含有所述源标识的上行数据指示。
在一个可能的设计中,所述处理单元用于:
在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识之前,通过所述输入单元接收并读取所述第二基站发送的指示信息,则根据所述指示信息确定通过所述输出单元向所述第二基站发送所述源标识的类型。
和/或在满足第一预设条件,通过所述输入单元接收所述接收第一小区所属的第一基站分配的短源标识和长源标识。
在一个可能的设计中,所述指示信息为通过授权命令发送给UE的授权信息,所述处理单元还用于:
根据授权信息判断出可以传输的消息大小,并根据可以传输的消息大小选择使用长源标识或者短源标识。
第六方面,本发明实施例提供一种基站,该基站为第二基站,所述第二基站可包括:输入单元、输出单元、存储单元和处理单元;
其中,所述存储单元用于存储程序代码,所述处理单元用于调用所述存储单元存储的程序代码执行如下步骤:
通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识,其中,在所述低开销状态下所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识;
根据所述源标识通过所述输出单元将所述第一UE标识发送给所述第一基 站,以通知所述第一基站获知所述UE当前的服务小区为所述第二小区。
在一个可能的设计中,所述源标识还包括指示信息,所述指示信息用于向所述第二基站通知所述UE处于所述低开销状态。
在一个可能的设计中,所述处理单元还用于:
通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE接入指示,以便于所述UE根据所述接入指示确定是否向所述第二基站发送所述源标识。
在一个可能的设计中,所述处理单元还用于:通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,
通过所述输入单元接收UE发送的随机接入前导码;
当所述随机接入前导码在预设范围时,通过所述输出单元向所述UE分配预设大小传输资源,以使得所述UE利用所述传输资源发送所述源标识。
在一个可能的设计中,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在一个可能的设计中,所述处理单元用于通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识,具体为:
通过所述输入单元接收在低开销状态下的用户设备UE发送的随机接入前导码;
根据所述随机接入前导码通过所述输出单元分配专用UE标识和用于传输所述源标识的传输资源给所述UE,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
通过所述输入单元利用所述传输资源接收所述源标识;
通过所述输出单元发送包含所述源标识的确认信息给所述UE。
在一个可能的设计中,所述处理单元通过所述输出单元发送包含所述源标识的确认信息给所述UE,具体为:
通过所述输出单元发送包含所述源标识且携带有指示所述UE退出低开销状态的指令的确认消息给所述UE,以便于所述UE根据所述指令应用所述专用UE标识,并且退出所述低开销状态。
在一个可能的设计中,所述处理单元通过所述输出单元根据所述源标识将所述第一UE标识发送给所述第一基站,具体为:
通过所述输出单元根据所述源标识向所述第一基站发送通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,以使得所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
在一个可能的设计中,所述处理单元还用于:
通过所述输出单元所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,接收所述UE发送的包含有所述源标识的上行数据指示;
通过所述输出单元向所述第一基站发送所述连接上下文的转移请求,所述连接上下文为所述第一基站在所述UE进入低开销状态下存储的所述UE在连接态的连接上下文,所述上下文转移请求中携带UE的源标识;
通过所述输入单元接收第一基站转移的所述连接上下文,并根据所述连接上下文建立于所述UE的连接。
在一个可能的设计中,所述处理单元还用于:
通过所述输入单元接收第一基站转移的所述连接上下文之后,通过所述输出单元向所述UE发送重新分配的源标识,所述重新分配的源标识包括在所述第二基站内识别所述UE的第二UE标识;
通过所述输出单元向所述UE发送指令指示所述UE退出所述低开销状态。
在一个可能的设计中,所述处理单元还用于:
通过所述输出单元根据所述源标识将所述第一UE标识发送给所述第一基站之后,通过所述输出单元接收所述第一基站发送的所述连接上下文以及所述UE的源标识;
根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
在一个可能的设计中,所述处理单元,用于根据所述源标识触发所述UE进行上行接入,具体为:
以所述源标识向所述UE发起寻呼;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述 UE发送上行接入命令;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发起寻呼。
在一个可能的设计中,所述源标识还包括无线控制资源RRC配置索引,所述处理单元还用于:
通过所述输出单元接收在低开销状态下的用户设备UE上报的源标识之后,根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在一个可能的设计中,所述处理单元,用于根据所述源标识通过所述输出单元将所述第一UE标识发送给所述第一基站,具体为:
根据所述源标识,通过所述输出单元和所述第一基站之间的基站间接口向所述第一基站发送所述源标识;或
根据所述源标识,通过所述输出单元和核心网向所述第一基站发送所述源标识。
在第一方面、第二方面、第三方面、第四方面、第五方面和第六方面的一些可能的实现方式中,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者,所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
本发明实施例,通过设计一种低开销状态,使得处于该状态的UE存储该UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,同时,在该低开销状态下的UE通过接收源基站发送的源标识,并在移动的过程中且满足一定条件下,将该源标识上报给UE当前的服务基站,最终由服务基站发送给源基站,使得服务基站和源基站都能够获知到该UE的位置信息。即在UE进入低开销状态状态后,UE自主进行基于小区重选的移动性,仅上报UE的位置变化信息,简化了切换流程,节省了网络设备的通信资源。进一步地,由于UE在进入低开销状态后,源基站和UE都存储有该UE的连接上下文,因此当UE需要进行上行或下行数据的通信时,可以将UE的连接上 下文切换到该UE当前的服务基站,进而进行数据传输,保证了数据传输的效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本发明提供的移动性管理的网络架构示意图;
图2是本发明提供的一种移动性管理的方法的流程示意图;
图3是本发明提供的另一种移动性管理的方法的流程示意图;
图4是本发明提供的又一种移动性管理的方法的流程示意图;
图5是本发明提供的第一基站的结构示意图;
图6是本发明提供的用户设备的结构示意图;
图7是本发明提供的第二基站的结构示意图;
图8是本发明提供的又一种移动性管理的方法的流程示意图。
具体实施方式
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作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
应当理解的是,本发明实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division  Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)等。
还应当理解的是,本发明实施例中,基站可以是GSM或CDMA中的基站(Base Transceiver Station,BTS),也可以是WCDMA中的基站(NodeB),还可以是LTE中的演进型基站(Evolutional Node B,eNB或eNodeB),或者是未来5G网络中的基站设备等,本发明对此并不限定。
还应当理解的是,在本发明实施例中,UE可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网(Core Network)进行通信,UE可称为接入终端、终端设备、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。UE可以是蜂窝电话、无绳电话、智能手机、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、智能手环、智能穿戴设备、MP3播放器(Moving Picture Experts Group Audio Layer III,动态影像专家压缩标准音频层面3)、MP4(Moving Picture Experts Group Audio Layer IV,动态影像专家压缩标准音频层面3)播放器、个人数字处理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备以及未来5G网络中的终端设备等。
为了便于理解本发明实施例,下面先对本发明实施例所基于的移动性管理的网络构架进行描述。请参阅图1,该网络架构中包含了基站、核心网以及用户设备UE,UE在从第一小区移动到第二小区再移动到第N小区的过程中,通过与对应的第一基站、第二基站和第N基站之间的无线通信完成数据的传输,而各个基站与核心网之间则通过光纤连接,完成数据或业务的连接、管理和承载等。可以理解的是,以上图1中的网络架构只是本发明实施例中较优的一种实施方式,本发明实施例中的网络架构包括但不仅限于以上网络架构。
参见图2,图2是本发明实施例中的一种移动性管理的方法的流程示意图,。下面将结合附图2从第一基站、用户设备UE以及第二基站的交互侧进行详细描述。如图2所示,该方法可以包括以下步骤S201-步骤S207。
S201:第一小区所属的第一基站向所述第一小区中处于连接态的用户设备 UE分配源标识,所述源标识包括在所述第一基站内识别所述UE的第一UE标识。
具体地,第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中向第一小区中处于连接态的UE分配源标识。
进一步地,可以通过专用消息或者无线资源控制RRC(Radio Resource Control,RRC)消息分配源标识,例如无线承载重配置消息,无线承载释放消息或者无线承载重新建立消息等;而通过RACH过程分配源标识则可以是通过前导的应答消息携带所述源标识。
再进一步地,所述源标识包括识别第一小区的第一小区标识和在第一小区内唯一识别所述UE的第一UE标识,或者,源标识包括唯一识别第一基站的第一基站标识和在第一基站内唯一识别所述UE的第一UE标识。其中,使用第一UE标识唯一识别所述第一小区内述UE的方法并不限制于单独使用所述第一UE标识来唯一识别所述UE,也可以使用第一UE标识和其他辅助信息比如校验信息来一起唯一识别所述UE,所属校验信息根据所述UE的密钥生成。具体的,例如,第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及第一小区在所述区域内的标识组成的小区标识中的至少一个;所述区域为网络划分的一定小区范围,比如256个小区为一个区域,则区域标识为8比特,一个区域内最大支持256个小区,则区域内小区标识为8比特,相应的小区标识由16位组成,前8位为区域标识,后8位为区域内小区标识。同理,所述基站标识也可以由区域标识和基站在区域内标识组成。再进一步地,所述源标识中还可以包括标识划分指示信息,所述标识划分指示信息用以指示基站标识和在基站内识别所述UE的第一UE标识在源标识中的比特划分,标识划分指示信息取值不同,代表不同的划分规则。比如:所述源标识占50比特,其中2比特为标识划分指示信息,当标识标识划分指示信息值为0时,标识所述基站标识占24比特,所述第一UE标识占(50-24-2=24)比特。当标识标识划分指示信息值为1时,标识所述基站标识占20比特,所述第一UE标识占(50-20-2=28)比特。同理,所述源标识中还可以包括标识划分指示信息,所述标识划分指示信息用以指示第一小区标识标识和在第一小区标识内识别所述UE的第一UE标识在源标识中的比特划分,具体方法同基站标识和UE标识之 间的划分。
S202:在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识。
具体地,UE通过所述第一小区所属的第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中接收所述源标识。
S203:当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
具体地,针对UE侧,预设激活条件包括以下条件中的至少一项:
UE接收所述第一基站指示的进入低开销状态的控制指令;
UE离开所述第一小区;
UE在第一预设时长内未与所述第一基站进行数据传输;
UE的时间提前量定时器TA timer超时,或所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
进一步地,UE在满足第二预设条件时退出所述低开销状态,第二预设条件,包括以下条件中至少一项:
UE当前驻留的服务小区变更;或
UE当前驻留的服务小区超出指定的小区集合范围;或
UE当前驻留的服务小区和所述第一小区不属于同一预设区域或者同一基站;或
UE向所述第二基站发送源标识并且收到所述第二基站针对所述源标识的拒绝接入指示;或
UE读取所述第二小区的系统信息广播,系统信息广播未携带允许所述低开销状态下的所述UE的接入指示;或
UE需要发送上行数据;或
所述UE获取参考信号测量结果,且所述参考信号测量结果和预定第一门 限比较结果符合预设结果;或
所述UE进入所述低开销状态后经过预定义的一段时间,所述预定义的一段时间的长度可以为所述UE内部设置的时间长度,或者接收所述第一基站配置的时间长度;或
所述UE发生PLMN变更。
其中UE当前驻留的服务小区和第一小区不属于同一预设区域或者同一基站具体为:UE根据第一小区和当前驻留小区的系统信息广播里面携带的区域标识判断UE当前驻留的服务小区和所述第一小区是否属于同一预设区域;或者,UE根据第一小区和当前驻留小区的系统信息广播里面携带的基站标识判断UE当前驻留的服务小区和所述第一小区是否属于同一预设区域。
其中,参考信号测量结果包括路损,信号强度或者信号质量。所述预定结果为大于,等于或者小于或其组合。所述UE获取参考信号测量结果,且所述参考信号测量结果和预定第一门限进行比较,结果符合预设结果,则退出低开销状态,比如预定路损大于第一门限。
其中,所述UE发生PLMN(Public Land Mobile Network公用陆地移动网络)变更包括,UE当前选择的小区所归属的PLMN不属于UE当前的设置PLMN集合。具体为,当前归属的PLMN中的任意一个PLMN均不在UE当前设置的PLMN集合。所述UE当前的设置PLMN集合包括以下三者的其中任一种或其组合:UE当前注册的PLMN或者UE选择的PLMN或者UE的等同PLMN。
再进一步地,UE在满足第二预设条件时清除所述连接上下文,进入空闲态。更进一步的,UE通知所述UE的高层,所述UE已经退出所述低开销状态,或者,UE通知所述UE的高层,所述UE已经退出所述低开销状态,并且所述UE高层触发跟踪区域更新,或者UE触发跟踪区域更新,进一步可选的,所述UE在跟踪区域更新消息中携带指示,所述指示用以通知核心网所述UE之前处于低开销状态,以便核心网根据此信息触发所述UE的连接释放。
再进一步地,UE在满足第二预设条件时退出所述低开销状态,所述退出所述低开销状态,包括清除保存的连接上下文。
在一个可选的实现方式中,所述连接上下文包括第一基站和UE之间的连接配置参数,具体的可以包括UE的无线承载配置,UE的标示信息,其中,无 线承载配置包括信令无线承载配置和/或数据无线承载配置。UE的标示信息可以包括UE的源标识。进一步地,所述连接上下文还可以包括密钥信息,所述密钥信息用于在进行加密传输时或者生成UE验证信息时使用。
在一个可选的实现方式中,UE接收第一基站发送的无线资源控制RRC配置信息,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息;所述UE当满足预设激活条件时UE进入低开销状态之后,在所述低开销状态下使用所述RRC配置信息。
在一个可选的实现方式中,当满足预设激活条件时UE进入低开销状态之后,UE释放所述UE在所述第一小区内的所述专用UE标识。
在一个可选的实现方式中,当满足预设激活条件时UE进入低开销状态之后,UE以所述源标识进行寻呼监听。
需要强调说明的是,本发明中的低开销状态为本发明定义的UE状态,其特征包括存储连接上下文,并执行基于小区重选的移动性。低开销状态具有信令开销低和耗电开销低的特征,因此本发明命名为低开销状态,所述低开销状态可以是连接态的一个子状态或者是空闲态的一个增强状态,本发明对此不做限定。例如,低开销状态可以是空闲态并且保存了连接上下文的UE,低开销状态UE清除上下文后进入正常的空闲态。或者,低开销状态可以是连接态,并且被允许执行小区重选的移动性的UE,低开销状态停止执行小区重选的移动性喉进入正常连接态。
S204:当第一基站判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文。
具体地,针对第一基站侧,预设激活条件包括以下条件中的至少一项:
第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令;
第一基站在第一预设时长内未与所述UE进行数据传输;
第一基站确定所述UE的时间提前量定时器TA timer超时,或第一基站确定所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
第一基站确定所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出DRX状态。其中,第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令可以是RRC信令,也可以是MAC层信令或者物理层信令, 控制指令可以和源标识在同一条消息中发送给所述UE,也可以在不同消息中发送给UE,本发明对此不作具体限定。
在一种可选的实现方式中,第一基站还向所述UE发送无线资源控制RRC配置信息,以供所述UE在所述低开销状态下使用。进一步地,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息。可选地,所述RRC配置包括所述UE在低开销状态的UE的无线承载配置,所述无线承载配置包括信令无线承载配置和/或数据无线承载配置。进一步可选地,所述RRC配置还可以包括密钥信息,所述密钥信息用于在进行加密传输时使用。
S205:UE在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
具体地,所述第一预设条件包括:
UE当前驻留的服务小区变更;或
UE当前驻留的所述第二小区超出指定的小区集合范围;或
UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE需要发送上行数据。
在一种可选的实现方式中,在满足第一预设条件时,UE向第二基站上报所述源标识之前,UE接收并读取第二小区的系统信息广播;若所述系统信息广播携带有允许所述低开销状态下的所述UE的接入指示,则UE根据所述接入指示确定向所述第二基站发送所述源标识。
在一种可选的实现方式中,在满足第一预设条件时,UE向第二基站上报所述源标识之前,所述UE根据参考信号测量结果确定上报所述源标识。所属参考信号测量结果包括路损,信号质量或者信号强度,所述UE根据参考信号测量结果和第一预定门限进行比较,根据比较结果确定是否上报所述标识。所述第一预定门限可以为预先设定的固定值,或者为基站配置给UE的门限。例如,考信号测量结果为路损,UE判断路损小于预定第一预定门限,才能上报所述源标识。或者否则,如果所述UE退出所述低开销状态,清除保存的上下文。
在一种可选的实现方式中,在满足第一预设条件时,UE向第二基站上报源标识之前,UE向所述第二基站发送预设范围内的随机接入前导码,所述预 设范围内的随机接入前导码用于指示需要向所述第二基站发送所述源标识或者需要向所述第二基站发送大于预设长度门限的消息;接收所述第二基站分配的用于传输所述源标识的预设大小传输资源;利用所述传输资源将所述源标识发送给所述第二基站。进一步地,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在一种可选的实现方式中,UE向第二基站上报源标识,具体可以为:UE向第二基站上报包括RRC配置索引的源标识,以便于所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在一种可选的实现方式中,UE向第二基站上报源标识,具体可以为:UE向所述第二基站发送随机接入前导码;接收所述第二基站发送的专用UE标识和根据所述随机接入前导码分配的用于传输所述源标识的传输资源,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;利用所述传输资源将所述源标识发送给所述第二基站;接收所述第二基站发送的包含所述源标识的确认信息;根据所述确认信息确定是否应用所述专用UE标识。进一步地,UE根据确认信息确定是否应用该专用UE标识,具体为:
UE根据所述确认信息不应用所述专用UE标识;或
UE根据所述确认信息应用所述专用UE标识,并且退出所述低开销状态;或
UE根据所述确认信息应用所述专用UE标识,并且保持所述低开销状态;或
UE根据所述确认信息中携带的指示所述UE退出低开销状态的指令,应用所述专用UE标识,并退出低开销状态。再进一步地,UE应用专用UE标识之后,根据当前驻留的服务小区的小区标识更新所述连接上下文中的密钥。更进一步地,UE向第二基站上报的源标识中还包括验证信息,所述验证信息为所述UE根据所述源标识和更新后的密钥生成的身份校验信息。
在一种可选的实现方式中,UE上报的所述源标识还包括指示信息,所述指示信息用于向所述第二基站通知所述UE处于所述低开销状态。
在一种可选的实现方式中,UE向第二基站上报源标识,具体可以为,所述源标识包括长源标识和短源标识。所述UE根据第二基站的指示信息或者参 考信号测量结果确定上报长源标识或短源标识。其中,长源标识和短源标识可以是两个独立的源标识,或者所述短源标识是所述长源标识的部分信息。比如长源标识为N比特长度,短源标识可以为其中的M比特,其中M小于N。其中,所述第二基站的指示信息可以通过系统广播配置的指示信息,或者通过授权命令发送给UE的授权信息。具体的,系统广播配置的指示信息可以为指示UE使用长源标识或者短源标识的知识,所述UE可以根据所述指示确定源标识上报使用的源标识类型。或者所述指示信息为通过授权命令发送给UE的授权信息,所述UE根据授权信息判断出可以传输的消息大小,并根据可以传输的消息大小选择使用长源标识或者短源标识。比如授权信息为56比特,其中可以填充源标识的长度为25比特,则选用短源标识,或者授权信息为88比特,其中可以填充源标识的长度为40比特,则选用长源标识。其中,所属述UE根据参考信号测量结果确定上报长源标识或者短源标识,包括,所属参考信号测量结果包括路损,信号质量或者信号强度,所述UE根据参考信号测量结果和第一预定门限进行比较,根据比较结果确定上报长源标识或短源标识。所述第一预定门限可以为预先设定的固定值,或者为基站配置给UE的门限。
在一种可选的实现方式中,UE向第二基站上报源标识,具体可以为,所述源标识包括长源标识和短源标识。所述UE确定首先上报短源标识,然后再后续的消息根据第二基站的指示上报长源标识或者长源标识除去短源标识部分剩余的内容。第二基站在接收到短源标识后,根据短源标识确定第一基站相第一基站发送上下文转移请求,如果不能取到上下文,再指示UE上报长源标识或者长源标识除去短源标识部分剩余的内容,这样,可以避免首先上报长源标识。其中,所述短源标识是所述长源标识的部分信息。比如长源标识为N比特长度,短源标识可以为其中的M比特,比如短源标识可以是长源标识的低N位或者是长源标识其中的高N位。其中M小于N。
需要强调说明的是,由于在UE进入低开销状态之后,启动小区重选过程,取决于UE是否移动,所述UE在满足第一设条件时服务小区可能仍然是第一小区,或者是不同于第一小区的其他小区,因此第二小区和第一小区是同一小区也可能是不同小区。
S206:第二小区所属的第二基站接收在低开销状态下的用户设备UE上报 的源标识。
具体地,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识。
在一种可选的实现方式中,第二基站接收在低开销状态下的用户设备UE上报的源标识之前,第二基站发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE接入指示,以便于所述UE根据所述接入指示确定是否向所述第二基站发送所述源标识。具体的,所述第二基站通过所述系统信息广播控制是否允许低开销状态UE的接入,因此所述UE通过判断所述广播中携带的指示来判断是否可以进行源标识上报。
在一种可选的实现方式中,第二基站接收在低开销状态下的用户设备UE上报的源标识之前,接收UE发送的随机接入前导码;当所述随机接入前导码在预设范围时,向所述UE分配预设大小传输资源,以使得所述UE利用所述传输资源发送所述源标识。进一步地,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在一种可选的实现方式中,第二基站接收在低开销状态下的用户设备UE上报的源标识,具体为:第二小区所属的第二基站接收在低开销状态下的用户设备UE发送的随机接入前导码;根据所述随机接入前导码分配专用UE标识和用于传输所述源标识的传输资源给所述UE,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;利用所述传输资源接收所述源标识;发送包含所述源标识的确认信息给所述UE。进一步地,第二基站发送包含所述源标识的确认信息给所述UE,具体为:第二基站发送包含所述源标识且携带有指示所述UE退出低开销状态的指令的确认消息给所述UE,以便于所述UE根据所述指令应用所述专用UE标识,并且退出所述低开销状态。
在一种可选的实现方式中,第二接收UE上报的源标识中还包括无线控制资源RRC配置索引,则第二基站接收在低开销状态下的UE上报的源标识之后,根据所述RRC配置索引确定所述UE使用的RRC配置信息。
S207:第二基站根据所述源标识将所述第一UE标识发送给所述第一基站,以通知所述第一基站获知所述UE当前的服务小区为所述第二小区。
具体地,第二基站根据所述源标识,通过和第一基站之间的基站间接口向第一基站发送所述源标识;或根据所述源标识,通过核心网向第一基站发送所述源标识。
在一种可选的实现方式中,第二基站根据源标识向第一基站发送通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,所述第二小区为UE当前驻留的服务小区;第一基站接收第二基站发送的通知消息,并根据该源标识和第二小区标识确定UE当前驻留的服务小区为第二小区。进一步地,所述通知消息携带所述UE的验证信息,所述验证信息为所述UE根据所述源标识和所述连接上下文中包含的密钥生成的身份校验信息,所述第一基站根据所述源标识以及所述验证信息确定所述UE是否为合法UE。
在一种可选的实现方式中,第二基站根据所述源标识将第一UE标识发送给所述第一基站之后,接收所述第一基站发送的所述连接上下文以及所述UE的源标识;根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
本发明实施例,本发明实施的交互流程并不限定所有步骤同时执行,即所述UE,第一基站,第二基站的处理步骤可以在所述UE设备,第一基站设备,第二基站设备内分别独立执行。任何设备包括UE,第一基站,第二基站的单独实现均在本发明实施例保护范围之内。
本发明实施例,通过设计一种低开销状态,使得处于该状态的UE存储该UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,同时,在该低开销状态下的UE通过接收源基站发送的源标识,并在移动的过程中且满足一定条件下,将该源标识上报给UE当前的服务基站,最终由服务基站发送给源基站,使得服务基站和源基站都能够获知到该UE的位置信息。即在UE进入低开销状态状态后,UE自主进行基于小区重选的移动性,仅上报UE的位置变化信息,简化了切换流程,节省了网络设备的通信资源。
参见图3,是本发明实施例中的另一种移动性管理的方法的流程示意图,下面将结合附图3从第一基站、UE和第二基站的交互侧进行描述,如图3所 示,该方法可以包括以下步骤S301-步骤S313。
步骤S301:第一小区所属的第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
步骤S302:在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识。
步骤S303:当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
步骤S304:当第一基站判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,所述UE在满足预设激活条件时进入所述低开销状态,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
具体地,步骤S301至步骤S304可以对应参考上述图2实施例中的步骤S201至步骤S204,这里不再赘述。
步骤S305:本步骤包括步骤205中当所述第一预设条件为所述UE需要发送上行数据时的处理,并且所述UE向第二小区所属的第二基站上报所述源标识还包括,在上报所述源标识的同时或之后,所述UE向第二小区所属的第二基站上报上行数据指示。
具体地,所述源标识和所述上行数据指示可以携带在同一上报消息中或者不同上报消息中,所述上报消息可以RRC消息,MAC控制信元或者物理层控制消息。所述上行数据指示可以是一个比特来指示UE数据到达或者是数据量的指示。
步骤S306:第二基站接收所述UE发送的所述源标识和上行数据指示。
步骤S307:所述第二基站向所述第一基站发送所述连接上下文的转移请求,所述连接上下文为所述第一基站在所述UE进入低开销状态下存储的所述UE在连接态的连接上下文,所述上下文转移请求中携带UE的源标识。
步骤S308:第一基站接收所述第二小区所属的第二基站发送的所述连接上下文的转移请求,所述转移请求中携带有所述UE的源标识,所述第二小区为 UE当前驻留的小区。
步骤S309:第一基站根据所述转移请求中携带的所述源标识,将所述连接上下文发送给所述第二基站。
在一种可选的实现方式中,第一基站将所述连接上下文发送给所述第二基站之后,第一基站还向第二基站发送核心网数据路径切换指示,以便所述第二基站判读是否将所述核心网数据路径切换至所述第二基站。
在一种可选的实现方式中,第一基站将所述连接上下文发送给所述第二基站的同时,之前或之后,第一基站向第二基站发送的寻呼参数,所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。所述第二基站可以根据所述寻呼参数触发对所述UE的寻呼。
步骤S310:第二基站接收第一基站转移的所述连接上下文,并根据所述连接上下文建立于所述UE的连接。
在一种可选的实现方式中,第二基站根据接收到的所述连接上下文后,结合所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。进一步地,根据源标识触发所述UE进行上行接入,具体为:
以所述源标识向所述UE发起寻呼;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发送上行接入命令;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发起寻呼。
在一种可选的实现方式中,第二基站接收第一基站转移的所述连接上下文之后,还向所述UE发送重新分配的源标识,所述重新分配的源标识包括在所述第二基站内识别所述UE的第二UE标识;并向所述UE发送指令指示所述UE退出所述低开销状态。
本发明实施例,本发明实施的交互流程并不限定所有步骤同时执行,即所述UE,第一基站,第二基站的处理步骤可以在所述UE设备,第一基站设备,第二基站设备内分别独立执行。任何设备包括UE,第一基站,第二基站的单独实现均在本发明实施例保护范围之内。
本发明实施例,通过设计一种低开销状态,使得处于该状态的UE存储该 UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,同时,在该低开销状态下的UE通过接收源基站发送的源标识,并在移动的过程中且满足一定条件下,将该源标识上报给UE当前的服务基站,最终由服务基站发送给源基站,使得服务基站和源基站都能够获知到该UE的位置信息。即在UE进入低开销状态状态后,UE自主进行基于小区重选的移动性,仅上报UE的位置变化信息,简化了切换流程,节省了网络设备的通信资源。进一步地,由于UE在进入低开销状态后,源基站和UE都存储有该UE的连接上下文,因此当UE需要进行上行或下行数据的通信时,可以将UE的连接上下文切换到该UE当前的服务基站,进而进行数据传输,保证了数据传输的效率。
参见图4,是本发明实施例中的又一种移动性管理的方法的流程示意图,下面将结合附图4从第一基站、UE和第二基站的交互侧进行描述进行描述,如图4所示,该方法可以包括以下步骤S401-步骤S410。
步骤S401:第一小区所属的第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
步骤S402:在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识。
步骤S403:当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
步骤S404:当第一基站判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
步骤S405:在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
步骤S406:第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识,其中,在所述低开销状态下所述UE存储所述UE在连接态的 连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识;
步骤S407:第二基站根据所述源标识将所述第一UE标识发送给所述第一基站。
具体地,步骤S401至步骤S407可以对应参考上述图2实施例中的步骤S201至步骤S207,这里不再赘述。
步骤S408:当所述UE的下行数据到达所述第一基站时,所述第一基站将所述连接上下文以及所述UE的源标识发送至第二基站,所述第二基站为所述第二小区所属的基站。
具体地,当UE的下行数据到达第一基站时,第一基站将连接上下文以及UE的源标识发送至第二基站,使得第二基站根据该连接上下文与UE进行数据通信,同时第一基站还会将UE的下行数据转发给第二基站,以便于作为UE当前服务基站的第二基站可以将该下行数据发送给UE。
步骤S409:接收所述第一基站发送的所述连接上下文以及所述UE的源标识。
步骤S410:根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
具体地,步骤S409至步骤S410可以对应参考上述图2实施例中的步骤S207,这里不再赘述。
本发明实施例,本发明实施的交互流程并不限定所有步骤同时执行,即所述UE,第一基站,第二基站的处理步骤可以在所述UE设备,第一基站设备,第二基站设备内分别独立执行。任何设备包括UE,第一基站,第二基站的单独实现均在本发明实施例保护范围之内。
本发明实施例,通过设计一种低开销状态,使得处于该状态的UE存储该UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,同时,在该低开销状态下的UE通过接收源基站发送的源标识,并在移动的过程中且满足一定条件下,将该源标识上报给UE当前的服务基站,最终 由服务基站发送给源基站,使得服务基站和源基站都能够获知到该UE的位置信息。即在UE进入低开销状态状态后,UE自主进行基于小区重选的移动性,仅上报UE的位置变化信息,简化了切换流程,节省了网络设备的通信资源。进一步地,由于UE在进入低开销状态后,源基站和UE都存储有该UE的连接上下文,因此当UE需要进行上行或下行数据的通信时,可以将UE的连接上下文切换到该UE当前的服务基站,进而进行数据传输,保证了数据传输的效率。
参见图8,是本发明实施例中的又一种移动性管理的方法的流程示意图,下面将结合附图8从第一基站、UE和第二基站的交互侧进行描述进行描述,如图8所示,该方法可以包括以下步骤S501-步骤S506。
步骤S501:第一小区所属的第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
步骤S502:在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识。
步骤S503:当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
步骤S504:当第一基站判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
步骤S505:在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
具体地,步骤S501至步骤S505可以对应参考上述图2实施例中的步骤S201至步骤S205,这里不再赘述。
步骤S506:当所述UE的下行数据到达所述第一基站或者来自于核心网设备的第一寻呼消息到达第一基站时,所述第一基站向第三基站发送第二寻呼消息,所述第三基站为和第一基站属于同一寻呼区域范围的基站。
可选的,处于低开销状态的UE根据配置可以在一定区域范围移动不用通 知基站,这样会导致第一基站无法指导UE的准确位置,只能根据在一定范围内寻呼UE。具体的,UE在S505步骤中,UE满足第一预设条件时所述UE向第二小区所属的第二基站上报所述源标识,其中所述第一预定条件包括,所述UE当前驻留的所述第二小区超出指定的小区集合范围;或所述UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;因此UE在所述小区集合或者同一预设区域内移动时,可能不会向第二基站发送UE标示,也就导致第一基站不能知道所述UE在这个小区集合或设区域内具体哪个小区之内,定义所述小区集合或者预设区域为寻呼区域。所述小区集合为所述基站在UE进入低开销状态时配置给UE的,所属预设区域为所述UE进入低开销状态时UE所归属的服务小区所在区域。因此第一基站需要向所述第三基站都发送第二寻呼消息,第三基站根据所述第二寻呼消息向UE发送寻呼,如果第三基站收到UE的寻呼响应消息,则向第一基站返回第二寻呼响应消息,第一基站据此可以知道当前UE在第三基站,进而可以触发向第三基站发送所述UE上下文。同时,第一基站也会向UE发送寻呼,以便确认所述UE是否位于第一基站内。
可选的,在一种可选的实现方式中,第一基站确定释放所述UE,所述第一基站向第二基站发送连接释放指示,所述第二基站可以根据所述连接释放指示对UE执行连接释放操作。所述连接释放指示可以携带在所述第二寻呼消息中或者所述连接释放指示携带在第一基站向第二基站发送上下文转移消息中。所述第二基站根据所述连接释放指示在向UE发送的寻呼参数种携带释放指示,或者所述第二基站在接收到UE的连接恢复请求时,通知所述UE进行连接释放。所述通知所述UE进行连接释放具体可以为向所述UE发送连接拒绝消息,所述拒绝消息用于通知UE删除保存的连接上下文。所述连接释放指示中还可以携带连接释放原因,所述第二基站根据根据所述连接释放原因,在向UE发送的寻呼参数中携带释放原因,或者,所述第二基站根据根据所述连接释放原因,在向UE发送的连接拒绝消息携带释放原因。所述连接释放原因具体可以为负载均衡的跟踪区更新,电路域回退请求,资源释放或者加密/解密失败。所述连接释放指示还可以携带要求释放的UE的状态,所述第二基站根据根据所述要求释放的UE的状态,在向UE发送的寻呼参数中携带要求带释的UE的状 态,以便UE根据自身的状态判断是否释放所述连接。其中第一基站确定释放所述UE,包括第一基站接收核心网发送的连接释放请求,或者第一基站根据负载确定需要释放所述UE。
具体的,可选的,基站根据下行数据到达触发寻呼,则在此之前,基站需要从核心网获取UE的寻呼参数信息。所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。其中所述UE的寻呼索引可为根据UE的国际移动用户识别码(International Mobile Subscriber Identification Number,IMSI)的计算的UE索引值,所述寻呼索引用于所述基站计算所述UE的寻呼时机。比如,根据3GPP协议TS 36.304规定,所述UE寻呼索引为IMSI mod 1024。该寻呼索引可以为IMSI对其他值进行求余运算,此处不做限定。所述寻呼参数用以计算UE的寻呼偏置,所述DRX周期为UE高层配置的DRX周期。基站从核心网获取UE的寻呼参数信息的具体消息可以为初始上下文建立消息,或者上下文修改消息,或者E-RAB建立消息,或者E-RAB修改消息,或者切换消息。其中,切换消息为进行UE切换的过程中,核心网向接入网发送的指示切换相关的消息,例如:切换请求消息或者路径切换消息等。
可选的,所述基站从核心网获取UE的寻呼参数信息后,如果所述UE的服务基站发生了变更,所述基站需要将所UE的寻呼参数发送给变更后的目标服务基站。具体的,如果所述UE在服务基站变更时在连接态,所述基站通过将所述寻呼参数携带在切换消息中发送给所述UE的目标服务基站,或者,如果所述UE在服务基站变更时在低开销态连接态,所述基站将所述寻呼参数携带上下文转移消息中发送给所述UE的目标服务基站。
具体的,可选的,第一基站根据来自于核心网设备的寻呼触发寻呼,第一基站从所述寻呼消息中获取UE的寻呼参数信息。所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。
具体的,可选的,第一基站向第三基站发送的第二寻呼消息中包括寻呼参数,所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。
具体的,可选的,第一基站向第三基站发送的第二寻呼消息中包括寻呼参数,所述寻呼参数包括所述UE的源标识。
本发明实施例,本发明实施的交互流程并不限定所有步骤同时执行,即所 述UE,第一基站,第三基站的处理步骤可以在所述UE设备,第一基站设备,第二基站设备内分别独立执行。任何设备包括UE,第一基站,第三基站的单独实现均在本发明实施例保护范围之内。
本发明实施例,通过设计一种低开销状态,使得处于该状态的UE存储该UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。即在UE进入低开销状态状态后,UE自主进行基于小区重选的移动性,仅上报UE的位置区域变化信息,简化了切换流程,节省了网络设备的通信资源。进一步地,由于UE在进入低开销状态后,源基站和UE都存储有该UE的连接上下文,因此当UE需要进行上行或下行数据的通信时,可以将UE的连接上下文切换到该UE当前的服务基站,进而进行数据传输,保证了数据传输的效率。
为了便于更好地实施本发明实施例的上述方法实施例,本发明还提供了用于配合实施上述方法实施例的相关基站和用户设备。下面结合图5、图6及图7所示的本发明提供的相关基站及用户设备的示意图,进行详细说明:
请参见图5,图5是本发明实施例提供的一种基站10,所述基站10为第一基站,所述基站10包括输出单元102、存储单元103和处理单元104,在本发明的一些实施例中,输入单元101、存储单元103和处理单元104可通过总线或者其它方式连接,其中,图5中以通过总线连接为例。所述处理单元104调用所述存储单元103中的程序代码,用于执行如下操作:
通过所述输出单元102向所述第一小区中处于连接态的用户设备UE分配源标识,所述源标识包括在所述第一基站内识别所述UE的第一UE标识;
当判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,所述UE在满足预设激活条件时进入所述低开销状态,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
在一种可选的方案中,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区 在所述区域内的标识组成的小区标识中的至少一个;或者
所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
在又一种可选的方案中,所述处理单元104,用于通过所述输出单元102向所述第一小区中处于连接态的用户设备UE分配源标识,具体为:
通过所述输出单元102输出的小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
在又一种可选的方案中,所述预设激活条件包括以下条件中的至少一项:
所述第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令;
所述第一基站在第一预设时长内未与所述UE进行数据传输;
所述第一基站确定所述UE的时间提前量定时器TA timer超时,或所述第一基站确定所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
所述第一基站确定所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
在又一种可选的方案中,所述处理单元104还用于:
当判断所述UE进入低开销状态之后,通过所述输出单元102向所述UE发送无线资源控制RRC配置信息,以供所述UE在所述低开销状态下使用。
在又一种可选的方案中,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息。
在又一种可选的方案中,所述基站还包括输入单元101;所述处理单元104还用于:
当判断所述UE进入低开销状态后,通过所述输入单元101接收所述第二小区所属的第二基站发送的通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,所述第二小区为UE当前驻留的服务小区;
根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
在又一种可选的方案中,所述处理单元104还用于:
根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区之后,当所述UE的下行数据到达所述第一基站时,将所述连接上下文以及所述UE的源标识通过所述输出单元102发送至第二基站,所述第二基站为所述第二小区所属的基站。
在又一种可选的方案中,所述基站还包括输入单元101;所述通知消息携带所述UE的验证信息,所述验证信息为所述UE根据所述源标识和所述连接上下文中包含的密钥生成的身份校验信息;
所述处理单元104还用于:
通过所述输入单元101接收所述第二基站发送的通知消息之后,根据所述源标识以及所述验证信息确定所述UE是否为合法UE。
在又一种可选的方案中,所述基站还包括输入单元101;所述处理单元104还用于:
当判断所述UE进入低开销状态后,通过所述输入单元101接收所述第二小区所属的第二基站发送的所述连接上下文的转移请求,所述转移请求中携带有所述UE的源标识,所述第二小区为UE当前驻留的小区;
根据所述转移请求中携带的所述源标识,通过所述输出单元102将所述连接上下文发送给所述第二基站。
在又一种可选的方案中,所述基站还包括输入单元101;所述处理单元104;所述输出单元102还用于:
所述UE的下行数据到达所述第一基站或者来自于核心网设备的寻呼到达第一基站时,所述第一基站通过输出单元102向第三基站发送寻呼消息,所述第三基站为和第一基站属于同一寻呼区域范围的基站。
所述括输入单元101用于,从第三基站收到UE的寻呼响应消息,第一基站据此可以知道当前UE在第三基站。
所述括输入单元101还用于,则在下行数据到达基站之前,基站需要从核心网获取UE的寻呼参数信息。所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。
可理解的是,基站10中各单元的功能可对应参考上述图2中方法实施例中 的具体实现方式,这里不再赘述。
请参见图6,图6是本发明实施例提供的一种用户设备UE 20,UE 20可以包括:输入单元201、输出单元202、存储单元203和处理单元204,在本发明的一些实施例中。其中,总线用于实现这些组件之间的通信连接;输入单元201具体可为终端的触控面板,包括触摸屏和触控屏,用于检测终端触控面板上的操作指令;输出单元202可以包括终端的显示屏(Display),用于输出、显示图像或者数据;存储器203可以是高速RAM显示器,也可以是非不稳定的显示器(non-volatile memory),例如至少一个磁盘显示器,存储器203可选的还可以是至少一个位于远离前述处理器201的显示装置。如图6所示,作为一种计算机显示介质的存储器203中可以包括操作系统、网络通信模块、用户接口模块以及数据处理程序。
图6中的UE的所述处理单元204调用所述存储单元203中的程序代码,用于执行如下操作:
通过所述输入单元201接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识;
当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留;
在满足第一预设条件时,通过所述输出单元202向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
在一种可选的方案中,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
在又一种可选的方案中,所述预设激活条件包括以下条件中的至少一项:
所述UE接收所述第一基站指示的进入低开销状态的控制指令;
所述UE离开所述第一小区;
所述UE在第一预设时长内未与所述第一基站进行数据传输;
所述UE的时间提前量定时器TA timer超时,或所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
在又一种可选的方案中,所述处理单元204还用于:
当满足预设激活条件时所述UE进入低开销状态之后,所述UE在满足第二预设条件时退出所述低开销状态;
所述第二预设条件,包括:
所述UE当前驻留的服务小区变更;或
所述UE当前驻留的服务小区超出指定的小区集合范围;或
所述UE当前驻留的服务小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE向所述第二基站发送源标识并且收到所述第二基站针对所述源标识的拒绝接入指示;或
所述UE读取所述第二小区的系统信息广播,系统信息广播未携带允许所述低开销状态下的所述UE的接入指示;或
所述UE进入所述低开销状态后经过预定义的一段时间,所述预定义的一段时间的长度可以为所述UE内部设置的时间长度,或者接收所述第一基站配置的时间长度;
所述UE需要发送上行数据;或
所述UE获取参考信号测量结果,且所述参考信号测量结果和预定第一门限比较结果符合预设结果。
在又一种可选的方案中,所述处理单元204,用于所述UE在满足第二预设条件时退出所述低开销状态,具体为:在满足第二预设条件时清除所述连接上下文,进入空闲态。
在又一种可选的方案中,所述第一预设条件包括:
所述UE当前驻留的服务小区变更;或
所述UE当前驻留的所述第二小区超出指定的小区集合范围;或
所述UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;或
所述UE需要发送上行数据。
在又一种可选的方案中,所述处理单元204还用于:
在满足第一预设条件时,通过所述输出单元202向第二小区所属的第二基站上报所述源标识之前,通过所述输入单元201接收并读取所述第二小区的系统信息广播,若所述系统信息广播携带有允许所述低开销状态下的所述UE的接入指示,则根据所述接入指示确定通过所述输出单元202向所述第二基站发送所述源标识。
在又一种可选的实现方式中,通过所述输出单元202向第二小区所属的第二基站上报所述源标识之前,通过所述输入单元201获取参考信号测量结果并和第一预定门限进行比较,根据所述比较结果确定通过所述输出单元202向所述第二基站发送所述源标识。
在又一种可选的方案中,所述处理单元204还用于:在满足第一预设条件时,通过所述输出单元202向第二小区所属的第二基站上报所述源标识之前,
通过所述输出单元202向所述第二基站发送预设范围内的随机接入前导码,所述预设范围内的随机接入前导码用于指示需要向所述第二基站发送所述源标识或者需要向所述第二基站发送大于预设长度门限的消息;
通过所述输入单元201接收所述第二基站分配的用于传输所述源标识的预设大小传输资源;
利用所述传输资源通过所述输出单元202将所述源标识发送给所述第二基站。
在又一种可选的方案中,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在又一种可选的方案中,所述处理单元204,用于向第二小区所属的第二基站上报所述源标识,具体为:
通过所述输出单元202向所述第二基站发送随机接入前导码;
通过所述输入单元201接收所述第二基站发送的专用UE标识和根据所述 随机接入前导码分配的用于传输所述源标识的传输资源,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
通过所述输出单元202利用所述传输资源将所述源标识发送给所述第二基站;
通过所述输入单元201接收所述第二基站发送的包含所述源标识的确认信息;
根据所述确认信息确定是否应用所述专用UE标识。
在又一种可选的方案中,所述处理单元204,用于根据所述确认信息确定是否应用所述专用UE标识,具体为:
所述处理单元204根据所述确认信息不应用所述专用UE标识;或
所述处理单元204根据所述确认信息应用所述专用UE标识,并且退出所述低开销状态;或
所述处理单元204根据所述确认信息应用所述专用UE标识,并且保持所述低开销状态;或
所述处理单元204根据所述确认信息中携带的指示所述UE退出低开销状态的指令,应用所述专用UE标识,并退出低开销状态。
在又一种可选的方案中,所述处理单元204还用于:
所述UE应用所述专用UE标识之后,根据当前驻留的服务小区的小区标识更新所述连接上下文中的密钥。
在又一种可选的方案中,所述源标识还包括验证信息,所述验证信息为所述UE根据所述源标识和更新后的密钥生成的身份校验信息。
在又一种可选的方案中,所述处理单元204还用于:
当满足预设激活条件时所述UE进入低开销状态之后,以所述源标识进行寻呼监听。
在又一种可选的方案中,所述处理单元204还用于:
通过所述输入单元201接收第一基站发送的无线资源控制RRC配置信息,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息;
所述UE在所述低开销状态下使用所述RRC配置信息。
在又一种可选的方案中,所述处理单元204用于,在满足第一预设条件时,向第二小区所属的第二基站上报所述源标识,具体为:
通过所述输出单元202向所述第二小区所属的第二基站上报包括所述RRC配置索引的所述源标识,以便于所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在又一种可选的方案中,所述处理单元204用于,所述第一预设条件为所述UE需要发送上行数据,向第二小区所属的第二基站上报所述源标识,具体为:
通过所述输出单元202向第二小区所属的第二基站上报包含有所述源标识的上行数据指示。
在又一种可选的方案中,所述处理单元204用于,所述第一预设条件为所述UE需要发送上行数据,向第二小区所属的第二基站上报所述源标识,具体为:
第二基站的指示信息,通过所述输出单元202向第二小区所属的第二基站上报包长源标识或短源标识。
可理解的是,用户设备UE 20中各单元的功能可对应参考上述图3中方法实施例中的具体实现方式,这里不再赘述。
请参见图7,图7是本发明实施例提供的一种基站30,所述基站30为第二基站,所述基站30包括输入单元301、输出单元302、存储单元303和处理单元304,在本发明的一些实施例中,输入单元301、存储单元303和处理单元304可通过总线或者其它方式连接,其中,图7中以通过总线连接为例。所述处理单元304调用所述存储单元303中的程序代码,用于执行如下操作:
通过所述输入单元301接收在低开销状态下的用户设备UE上报的源标识,其中,在所述低开销状态下所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识;
根据所述源标识通过所述输出单元302将所述第一UE标识发送给所述第一基站,以通知所述第一基站获知所述UE当前的服务小区为所述第二小区。
在一种可选的方案中,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
在又一种可选的方案中,所述源标识还包括指示信息,所述指示信息用于向所述第二基站通知所述UE处于所述低开销状态。
在又一种可选的方案中,所述处理单元304还用于:
通过所述输入单元301接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元302发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE接入指示,以便于所述UE根据所述接入指示确定是否向所述第二基站发送所述源标识。
在又一种可选的方案中,所述处理单元304还用于:通过所述输入单元301接收在低开销状态下的用户设备UE上报的源标识之前,
通过所述输入单元301接收UE发送的随机接入前导码;
当所述随机接入前导码在预设范围时,通过所述输出单元302向所述UE分配预设大小传输资源,以使得所述UE利用所述传输资源发送所述源标识。
在又一种可选的方案中,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
在又一种可选的方案中,所述处理单元304用于通过所述输入单元301接收在低开销状态下的用户设备UE上报的源标识,具体为:
通过所述输入单元301接收在低开销状态下的用户设备UE发送的随机接入前导码;
根据所述随机接入前导码通过所述输出单元302分配专用UE标识和用于传输所述源标识的传输资源给所述UE,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
通过所述输入单元301利用所述传输资源接收所述源标识;
通过所述输出单元302发送包含所述源标识的确认信息给所述UE。
在又一种可选的方案中,所述处理单元304通过所述输出单元302发送包含所述源标识的确认信息给所述UE,具体为:
通过所述输出单元302发送包含所述源标识且携带有指示所述UE退出低开销状态的指令的确认消息给所述UE,以便于所述UE根据所述指令应用所述专用UE标识,并且退出所述低开销状态。
在又一种可选的方案中,其特征在于,所述处理单元304通过所述输出单元302根据所述源标识将所述第一UE标识发送给所述第一基站,具体为:
通过所述输出单元302根据所述源标识向所述第一基站发送通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,以使得所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
在又一种可选的方案中,其特征在于,所述处理单元304还用于:
通过所述输出单元302所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,接收所述UE发送的包含有所述源标识的上行数据指示;
通过所述输出单元302向所述第一基站发送所述连接上下文的转移请求,所述连接上下文为所述第一基站在所述UE进入低开销状态下存储的所述UE在连接态的连接上下文,所述上下文转移请求中携带UE的源标识;
通过所述输入单元301接收第一基站转移的所述连接上下文,并根据所述连接上下文建立于所述UE的连接。
在又一种可选的方案中,所述处理单元304还用于:
通过所述输入单元301接收第一基站转移的所述连接上下文之后,通过所述输出单元302向所述UE发送重新分配的源标识,所述重新分配的源标识包括在所述第二基站内识别所述UE的第二UE标识;
通过所述输出单元302向所述UE发送指令指示所述UE退出所述低开销状态。
在又一种可选的方案中,所述处理单元304还用于:
通过所述输出单元302根据所述源标识将所述第一UE标识发送给所述第 一基站之后,通过所述输出单元302接收所述第一基站发送的所述连接上下文以及所述UE的源标识;
根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
在又一种可选的方案中,所述处理单元304,用于根据所述源标识触发所述UE进行上行接入,具体为:
以所述源标识向所述UE发起寻呼;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发送上行接入命令;或
根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发起寻呼。
在又一种可选的方案中,所述源标识还包括无线控制资源RRC配置索引,所述处理单元304还用于:
通过所述输出单元302接收在低开销状态下的用户设备UE上报的源标识之后,根据所述RRC配置索引确定所述UE使用的RRC配置信息。
在又一种可选的方案中,所述处理单元304,用于根据所述源标识通过所述输出单元302将所述第一UE标识发送给所述第一基站,具体为:
根据所述源标识,通过所述输出单元302和所述第一基站之间的基站间接口向所述第一基站发送所述源标识;或
根据所述源标识,通过所述输出单元302和核心网向所述第一基站发送所述源标识。
可理解的是,基站30中各单元的功能可对应参考上述图4中方法实施例中的具体实现方式,这里不再赘述。
应注意,本发明上述方法实施例可以应用于处理器中,或者由处理器实现。处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻 辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑示意图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本发明实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程, 在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,ROM)、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以权利要求的保护范围为准。

Claims (101)

  1. 一种移动性管理的方法,其特征在于,包括:
    第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配源标识,所述源标识包括在所述第一基站内识别所述UE的第一UE标识;
    当判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,所述UE在满足预设激活条件时进入所述低开销状态,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
  2. 如权利要求1所述的方法,其特征在于,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
    所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
  3. 如权利要求1或2所述的方法,其特征在于,所述第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配源标识,包括:
    所述第一小区所属的第一基站通过小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
  4. 如权利要求1-3任意一项所述的方法,其特征在于,所述预设激活条件包括以下条件中的至少一项:
    所述第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令;
    所述第一基站在第一预设时长内未与所述UE进行数据传输;
    所述第一基站确定所述UE的时间提前量定时器TA timer超时,或所述第一基站确定所述UE的TA timer超时且在第二预设时长内所述TA timer未重 新运行;
    所述第一基站确定所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
  5. 根据权利要求1-3任意一项所述的方法所述的方法,其特征在于,所述第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配源标识还包括:
    第一小区所属的第一基站向所述第一小区中处于连接态的用户设备UE分配短源标识和长源标识。
  6. 如权利要求1-3任意一项所述的方法,其特征在于,还包括:
    所述第一基站向所述UE发送无线资源控制RRC配置信息,以供所述UE在所述低开销状态下使用。
  7. 如权利要求6所述的方法,其特征在于,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息。
  8. 根据权利要求1-7任意一项所述的方法,其特征在于,还包括:
    所述第一基站向UE发送允许所述低开销状态下的所述UE的接入指示;或者
    所述第一基站向UE发送允许所述低开销状态下的所述UE上报源标识的类型,所述源标识的类型包括短源标识或者长源标识。
  9. 根据权利要求1-7任意一项所述的方法,其特征在于,所述当判断所述UE进入低开销状态后,还包括:
    当所述UE的下行数据到达所述第一基站时或者接收到来自核心网的第一寻呼消息后,所述第一基站向第三基站发送第二寻呼消息,所述第三基站和所述第一基站属于同一寻呼区域。
  10. 根据权利要求9所述的方法,其特征在于,所述UE的下行数据到达所述第一基站或者接收到来自核心网的寻呼消息之前,还包括:
    接收核心网发送的寻呼参数信息,所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。所述寻呼参数用以计算UE的寻呼偏置。
  11. 根据权利要求9所述的方法,其特征在于:
    所述第二寻呼消息包括寻呼参数,TMSI和/或所述UE的源标识。所述寻呼参数包括,UE的寻呼索引和/或者UE DRX周期。
  12. 根据权利要求11所述的方法,其特征在于,所述第一基站向所述第三基站发送第二寻呼消息之后,还包括:
    接收第三基站发送的寻呼响应消息,根据所述寻呼响应消息确定所述UE当前位于所述第三基站。
  13. 根据权利要求1-7任意一项所述的方法,其特征在于,所述当判断所述UE进入低开销状态后,还包括:
    所述第一基站接收所述第二小区所属的第二基站发送的通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,所述第二小区为UE当前驻留的服务小区;
    所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
  14. 如权利要求13所述的方法,其特征在于,所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区之后,还包括:
    当所述UE的下行数据到达所述第一基站时,所述第一基站将所述连接上下文以及所述UE的源标识发送至第二基站,所述第二基站为所述第二小区所属的基站。
  15. 根据权利要求13或14所述的方法,其特征在于,所述通知消息携带 所述UE的验证信息,所述验证信息为所述UE根据所述源标识和所述连接上下文中包含的密钥生成的身份校验信息;
    所述第一基站接收所述第二基站发送的通知消息之后,还包括:
    所述第一基站根据所述源标识以及所述验证信息确定所述UE是否为合法UE。
  16. 根据权利要求1-15任意一项所述的方法,其特征在于,所述当判断所述UE进入低开销状态后,还包括:
    接收所述第二小区所属的第二基站发送的所述连接上下文的转移请求,所述转移请求中携带有所述UE的源标识,所述第二小区为UE当前驻留的小区;
    根据所述转移请求中携带的所述源标识,将所述连接上下文发送给所述第二基站。
  17. 一种移动性管理的方法,其特征在于,包括:
    在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,所述源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识;
    当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留;
    在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
  18. 如权利要求17所述的方法,其特征在于,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
    所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
  19. 如权利要求17或18所述的方法,其特征在于,所述预设激活条件包括以下条件中的至少一项:
    所述UE接收所述第一基站指示的进入低开销状态的控制指令;
    所述UE离开所述第一小区;
    所述UE在第一预设时长内未与所述第一基站进行数据传输;
    所述UE的时间提前量定时器TA timer超时,或所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
    所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
  20. 如权利要求17-19任意一项所述的方法,其特征在于,所述当满足预设激活条件时所述UE进入低开销状态之后,还包括:
    所述UE在满足第二预设条件时退出所述低开销状态;
    所述第二预设条件,包括:
    所述UE当前驻留的服务小区变更;或
    所述UE当前驻留的服务小区超出指定的小区集合范围;或
    所述UE当前驻留的服务小区和所述第一小区不属于同一预设区域或者同一基站;或
    所述UE向所述第二基站发送源标识并且收到所述第二基站针对所述源标识的拒绝接入指示;或
    所述UE读取所述第二小区的系统信息广播,系统信息广播未携带允许所述低开销状态下的所述UE的接入指示;或
    所述UE需要发送上行数据。
  21. 如权利要求20所述的方法,其特征在于,所述UE在满足第二预设条件时退出所述低开销状态,包括:所述UE在满足第二预设条件时清除所述连接上下文,进入空闲态。
  22. 如权利要求17-21任意一项所述的方法,其特征在于,所述第一预设条件包括:
    所述UE当前驻留的服务小区变更;或
    所述UE当前驻留的所述第二小区超出指定的小区集合范围;或
    所述UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;或
    所述UE需要发送上行数据。
  23. 如权利要求17-22任意一项所述的方法,其特征在于,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识之前,包括:
    所述UE接收并读取所述第二小区的系统信息广播;
    若所述系统信息广播携带有允许所述低开销状态下的所述UE的接入指示,则所述UE根据所述接入指示确定向所述第二基站发送所述源标识。
  24. 如权利要求17-22任意一项所述的方法,其特征在于,在第一小区中处于连接态的用户设备UE接收所述第一小区所属的第一基站分配的源标识,包括:
    所述UE接收第一小区所属的第一基站分配的短源标识和长源标识。
  25. 如权利要求17-22任意一项所述的方法,其特征在于,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识之前,包括:
    所述UE根据第二基站的发送的指示信息确定上报长源标识或者短源标识。
    其中,所述长源标识和所述短源标识可以是两个独立的源标识,或者,所述短源标识是所述长源标识的部分信息。
  26. 如权利要求25的方法,其特征在于,所述第二基站的指示信息是通过系统广播配置的指示信息,或者通过授权命令发送给UE的授权信息,所述UE根据第二基站的指示信息确定上报长源标识或者短源标识,包括:
    所述UE根据所述系统广播配置的指示信息中的指示确定源标识上报使用 的源标识类型。
    或者所述UE根据授权信息判断出可以传输的消息大小,并根据可以传输的消息大小选择使用长源标识或者短源标识。
  27. 如权利要求17-23任意一项所述的方法,其特征在于,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识之前,还包括:
    所述UE向所述第二基站发送预设范围内的随机接入前导码,所述预设范围内的随机接入前导码用于指示需要向所述第二基站发送所述源标识或者需要向所述第二基站发送大于预设长度门限的消息;
    接收所述第二基站分配的用于传输所述源标识的预设大小传输资源;
    利用所述传输资源将所述源标识发送给所述第二基站。
  28. 如权利要求27所述的方法,其特征在于,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
  29. 如权利要求17-28任意一项所述的方法,其特征在于,所述UE向第二小区所属的第二基站上报所述源标识,包括:
    所述UE向所述第二基站发送随机接入前导码;
    接收所述第二基站发送的专用UE标识和根据所述随机接入前导码分配的用于传输所述源标识的传输资源,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
    利用所述传输资源将所述源标识发送给所述第二基站;
    接收所述第二基站发送的包含所述源标识的确认信息;
    根据所述确认信息确定是否应用所述专用UE标识。
  30. 如权利要求29所述的方法,其特征在于,所述根据所述确认信息确定是否应用所述专用UE标识,包括:
    所UE根据所述确认信息不应用所述专用UE标识;或
    所述UE根据所述确认信息应用所述专用UE标识,并且退出所述低开销 状态;或
    所述UE根据所述确认信息应用所述专用UE标识,并且保持所述低开销状态;或
    所述UE根据所述确认信息中携带的指示所述UE退出低开销状态的指令,应用所述专用UE标识,并退出低开销状态。
  31. 如权利要求20所述的方法,其特征在于,所述UE应用所述专用UE标识之后,包括:
    根据当前驻留的服务小区的小区标识更新所述连接上下文中的密钥。
  32. 如权利要求31所述的方法,其特征在于,所述源标识还包括验证信息,所述验证信息为所述UE根据所述源标识和更新后的密钥生成的身份校验信息。
  33. 如权利要求17-29任意一项所述的方法,其特征在于,当满足预设激活条件时所述UE进入低开销状态之后,还包括:
    所述UE以所述源标识进行寻呼监听。
  34. 如权利要求17-33任意一项所述的方法,其特征在于,还包括:
    接收第一基站发送的无线资源控制RRC配置信息,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息;
    所述UE在所述低开销状态下使用所述RRC配置信息。
  35. 如权利要求34所述的方法,其特征在于,在满足第一预设条件时,所述UE向第二小区所属的第二基站上报所述源标识,包括:
    所述UE向所述第二小区所属的第二基站上报包括所述RRC配置索引的所述源标识,以便于所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
  36. 如权利要求17-35任意一项所述的方法,其特征在于,所述第一预设 条件为所述UE需要发送上行数据,所述UE向第二小区所属的第二基站上报所述源标识,还包括:
    在上报所述源标识的同时或之后,所述UE向第二小区所属的第二基站上报上行数据指示。
  37. 一种移动性管理的方法,其特征在于,包括:
    第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识,其中,在所述低开销状态下所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识;
    根据所述源标识将所述第一UE标识发送给所述第一基站,以通知所述第一基站获知所述UE当前的服务小区为所述第二小区。
  38. 如权利要求37所述的方法,其特征在于,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
    所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
  39. 如权利要求38或37所述的方法,其特征在于,所述源标识还包括指示信息,所述指示信息用于向所述第二基站通知所述UE处于所述低开销状态。
  40. 如权利要求37-39任意一项所述的方法,其特征在于,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识之前,包括:
    所述第二基站发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE接入指示,以便于所述UE根据所述接入指示确定是否向所述第二基站发送所述源标识。
  41. 如权利要求37-40任意一项所述的方法,其特征在于,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识之前,还包括:
    接收UE发送的随机接入前导码;
    当所述随机接入前导码在预设范围时,向所述UE分配预设大小传输资源,以使得所述UE利用所述传输资源发送所述源标识。
  42. 如权利要求41所述的方法,其特征在于,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
  43. 如权利要求37-40任意一项所述的方法,其特征在于,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识,包括:
    所述第二小区所属的第二基站接收在低开销状态下的用户设备UE发送的随机接入前导码;
    根据所述随机接入前导码分配专用UE标识和用于传输所述源标识的传输资源给所述UE,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
    利用所述传输资源接收所述源标识;
    发送包含所述源标识的确认信息给所述UE。
  44. 如权利要求43所述的方法,所述发送包含所述源标识的确认信息给所述UE,包括:
    发送包含所述源标识且携带有指示所述UE退出低开销状态的指令的确认消息给所述UE,以便于所述UE根据所述指令应用所述专用UE标识,并且退出所述低开销状态。
  45. 根据权利要求37-44任意一项所述的方法,其特征在于,所述根据所述源标识将所述第一UE标识发送给所述第一基站,包括:
    根据所述源标识向所述第一基站发送通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,以使得所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
  46. 如权利要求37-43任意一项所述的方法,其特征在于,所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,还包括:
    接收所述UE发送的包含有所述源标识的上行数据指示;
    所述第二基站向所述第一基站发送所述连接上下文的转移请求,所述连接上下文为所述第一基站在所述UE进入低开销状态下存储的所述UE在连接态的连接上下文,所述上下文转移请求中携带UE的源标识;
    接收第一基站转移的所述连接上下文,并根据所述连接上下文建立于所述UE的连接。
  47. 如权利要求37所述的方法,其特征在于,所述接收第一基站转移的所述连接上下文之后,还包括:
    向所述UE发送重新分配的源标识,所述重新分配的源标识包括在所述第二基站内识别所述UE的第二UE标识;
    向所述UE发送指令指示所述UE退出所述低开销状态。
  48. 如权利要求37-47任意一项所述的方法,其特征在于,所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,还包括:
    接收所述第一基站发送的所述连接上下文以及所述UE的源标识;
    根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
  49. 如权利要求48所述的方法,其特征在于,所述根据所述源标识触发所述UE进行上行接入,包括:
    以所述源标识向所述UE发起寻呼;或
    根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发送上行接入命令;或
    根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发起寻呼。
  50. 如权利要求37-49任意一项所述的方法,其特征在于,所述源标识还包括无线控制资源RRC配置索引,所述第二小区所属的第二基站接收在低开销状态下的用户设备UE上报的源标识之后,还包括:
    所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
  51. 如权利要求37-50任意一项所述的方法,其特征在于,所述根据所述源标识将所述第一UE标识发送给所述第一基站,包括:
    根据所述源标识,通过和所述第一基站之间的基站间接口向所述第一基站发送所述源标识;或
    根据所述源标识,通过核心网向所述第一基站发送所述源标识。
  52. 一种基站,其特征在于,所述基站为第一基站,所述第一基站包括:输出单元、存储单元和处理单元;
    其中,所述存储单元用于存储程序代码,所述处理单元用于调用所述存储单元存储的程序代码执行如下步骤:
    通过所述输出单元向所述第一小区中处于连接态的用户设备UE分配源标识,所述源标识包括在所述第一基站内识别所述UE的第一UE标识;
    当判断所述UE进入低开销状态后,存储所述UE在连接态的连接上下文,其中,所述UE在满足预设激活条件时进入所述低开销状态,在所述低开销状态下所述UE存储所述连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留。
  53. 如权利要求52所述的基站,其特征在于,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识, 所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
    所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
  54. 如权利要求52或53所述的基站,其特征在于,所述处理单元,用于通过所述输出单元向所述第一小区中处于连接态的用户设备UE分配源标识,具体为:
    通过所述输出单元输出的小区广播消息、专用消息或者在随机接入信道RACH过程中向所述第一小区中处于连接态的UE分配源标识。
  55. 如权利要求52-54任意一项所述的基站,其特征在于,所述预设激活条件包括以下条件中的至少一项:
    所述第一基站向所述UE发送用于指示所述UE进入低开销状态的控制指令;
    所述第一基站在第一预设时长内未与所述UE进行数据传输;
    所述第一基站确定所述UE的时间提前量定时器TA timer超时,或所述第一基站确定所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
    所述第一基站确定所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
  56. 如权利要求52-55所述的基站,其特征在于,所述处理单元,用于通过所述输出单元向所述第一小区中处于连接态的用户设备UE分配源标识,具体为:
    向所述第一小区中处于连接态的用户设备UE分配短源标识和长源标识。
  57. 如权利要求52-55任意一项所述的基站,其特征在于,所述处理单元还用于:
    当判断所述UE进入低开销状态之后,通过所述输出单元向所述UE发送无线资源控制RRC配置信息,以供所述UE在所述低开销状态下使用。
  58. 如权利要求57所述的基站,其特征在于,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息。
  59. 根据权利要求52-58任意一项所述的方法所述的方法,其特征在于,所述处理单元还用于:
    向UE发送允许所述低开销状态下的所述UE的接入指示;或者
    向UE发送允许所述低开销状态下的所述UE上报源标识的类型,所述源标识的类型包括短源标识或者长源标识。
  60. 根据权利要求52-58任意一项所述的方法,其特征在于,所述当判断所述UE进入低开销状态后,所述处理单元还用于还还用于:
    当所述UE的下行数据到达所述第一基站时或者接收到来自核心网的第一寻呼消息后,向第三基站发送第二寻呼消息。
  61. 根据权利要求60所述的方法,其特征在于,所述UE的下行数据到达所述第一基站或者接收到来自核心网的寻呼消息之前,所述处理单元还用于还还用于:
    接收核心网发送的寻呼参数信息,所述寻呼参数包括,UE的寻呼索引或者UE DRX周期。所述寻呼参数用以计算UE的寻呼偏置。
  62. 根据权利要求52-57任意一项所述的基站,其特征在于,所述基站包括输入单元,所述处理单元还用于:
    当判断所述UE进入低开销状态后,通过所述输入单元接收所述第二小区所属的第二基站发送的通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,所述第二小区为UE当前驻留的服务小区;
    根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
  63. 如权利要求62所述的基站,其特征在于,所述处理单元还用于:
    根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区之后,当所述UE的下行数据到达所述第一基站时,将所述连接上下文以及所述UE的源标识通过所述输出单元发送至第二基站,所述第二基站为所述第二小区所属的基站。
  64. 根据权利要求62或63所述的基站,其特征在于,所述基站还包括输入单元;所述通知消息携带所述UE的验证信息,所述验证信息为所述UE根据所述源标识和所述连接上下文中包含的密钥生成的身份校验信息;
    所述处理单元还用于:
    通过所述输入单元接收所述第二基站发送的通知消息之后,根据所述源标识以及所述验证信息确定所述UE是否为合法UE。
  65. 根据权利要求52-57任意一项所述的基站,其特征在于,所述基站还包括输入单元;所述处理单元还用于:
    当判断所述UE进入低开销状态后,通过所述输入单元接收所述第二小区所属的第二基站发送的所述连接上下文的转移请求,所述转移请求中携带有所述UE的源标识,所述第二小区为UE当前驻留的小区;
    根据所述转移请求中携带的所述源标识,通过所述输出单元将所述连接上下文发送给所述第二基站。
  66. 一种用户设备UE,其特征在于,包括:输入单元、输出单元、存储单元和处理单元;
    其中,所述存储单元用于存储程序代码,所述处理单元用于调用所述存储单元存储的程序代码执行如下步骤:
    通过所述输入单元接收所述第一小区所属的第一基站分配的源标识,所述 源标识包括在所述第一基站小区内唯一识别所述UE的第一UE标识;
    当满足预设激活条件时所述UE进入低开销状态,在所述低开销状态下,所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留;
    在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识,所述第二小区为所述UE当前驻留的服务小区。
  67. 如权利要求66所述的用户设备,其特征在于,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
    所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
  68. 如权利要求66或67所述的用户设备,其特征在于,所述预设激活条件包括以下条件中的至少一项:
    所述UE接收所述第一基站指示的进入低开销状态的控制指令;
    所述UE离开所述第一小区;
    所述UE在第一预设时长内未与所述第一基站进行数据传输;
    所述UE的时间提前量定时器TA timer超时,或所述UE的TA timer超时且在第二预设时长内所述TA timer未重新运行;
    所述UE进入非连续接收DRX状态后,且在第三预设时长内未退出所述DRX状态。
  69. 如权利要求66-68任意一项所述的用户设备,其特征在于,所述处理单元还用于:
    当满足预设激活条件时所述UE进入低开销状态之后,所述UE在满足第二预设条件时退出所述低开销状态;
    所述第二预设条件,包括:
    所述UE当前驻留的服务小区变更;或
    所述UE当前驻留的服务小区超出指定的小区集合范围;或
    所述UE当前驻留的服务小区和所述第一小区不属于同一预设区域或者同一基站;或
    所述UE向所述第二基站发送源标识并且收到所述第二基站针对所述源标识的拒绝接入指示;或
    所述UE读取所述第二小区的系统信息广播,系统信息广播未携带允许所述低开销状态下的所述UE的接入指示;或
    所述UE需要发送上行数据。
  70. 如权利要求69所述的用户设备,其特征在于,所述处理单元,用于所述UE在满足第二预设条件时退出所述低开销状态,具体为:在满足第二预设条件时清除所述连接上下文,进入空闲态。
  71. 如权利要求66-69任意一项所述的用户设备,其特征在于,所述处理单元还用于:
    接收第一小区所属的第一基站分配的短源标识和长源标识。
  72. 如权利要求66-69任意一项所述的用户设备,其特征在于,所述UE向第二小区所属的第二基站上报所述源标识之前,所述处理单元还用于:
    根据第二基站的发送的指示信息确定上报长源标识或者短源标识。
  73. 如权利要求66-72任意一项所述的用户设备,其特征在于,所述第一预设条件包括:
    所述UE当前驻留的服务小区变更;或
    所述UE当前驻留的所述第二小区超出指定的小区集合范围;或
    所述UE当前驻留的所述第二小区和所述第一小区不属于同一预设区域或者同一基站;或
    所述UE需要发送上行数据。
  74. 如权利要求66-73任意一项所述的用户设备,其特征在于,所述处理单元还用于:
    在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识之前,通过所述输入单元接收并读取所述第二小区的系统信息广播,若所述系统信息广播携带有允许所述低开销状态下的所述UE的接入指示,则根据所述接入指示确定通过所述输出单元向所述第二基站发送所述源标识。
  75. 如权利要求66-74任意一项所述的用户设备,其特征在于,所述处理单元还用于:在满足第一预设条件时,通过所述输出单元向第二小区所属的第二基站上报所述源标识之前,
    通过所述输出单元向所述第二基站发送预设范围内的随机接入前导码,所述预设范围内的随机接入前导码用于指示需要向所述第二基站发送所述源标识或者需要向所述第二基站发送大于预设长度门限的消息;
    通过所述输入单元接收所述第二基站分配的用于传输所述源标识的预设大小传输资源;
    利用所述传输资源通过所述输出单元将所述源标识发送给所述第二基站。
  76. 如权利要求75所述的用户设备,其特征在于,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
  77. 如权利要求66-76任意一项所述的用户设备,其特征在于,所述处理单元,用于向第二小区所属的第二基站上报所述源标识,具体为:
    通过所述输出单元向所述第二基站发送随机接入前导码;
    通过所述输入单元接收所述第二基站发送的专用UE标识和根据所述随机接入前导码分配的用于传输所述源标识的传输资源,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
    通过所述输出单元利用所述传输资源将所述源标识发送给所述第二基站;
    通过所述输入单元接收所述第二基站发送的包含所述源标识的确认信息;
    根据所述确认信息确定是否应用所述专用UE标识。
  78. 如权利要求77所述的用户设备,其特征在于,所述处理单元,用于根据所述确认信息确定是否应用所述专用UE标识,具体为:
    所述处理单元根据所述确认信息不应用所述专用UE标识;或
    所述处理单元根据所述确认信息应用所述专用UE标识,并且退出所述低开销状态;或
    所述处理单元根据所述确认信息应用所述专用UE标识,并且保持所述低开销状态;或
    所述处理单元根据所述确认信息中携带的指示所述UE退出低开销状态的指令,应用所述专用UE标识,并退出低开销状态。
  79. 如权利要求78所述的用户设备,其特征在于,所述处理单元还用于:
    所述UE应用所述专用UE标识之后,根据当前驻留的服务小区的小区标识更新所述连接上下文中的密钥。
  80. 如权利要求79所述的用户设备,其特征在于,所述源标识还包括验证信息,所述验证信息为所述UE根据所述源标识和更新后的密钥生成的身份校验信息。
  81. 如权利要求66-80任意一项所述的用户设备,其特征在于,所述处理单元还用于:
    当满足预设激活条件时所述UE进入低开销状态之后,以所述源标识进行寻呼监听。
  82. 如权利要求66-80任意一项所述的用户设备,其特征在于,所述处理单元还用于:
    当满足预设激活条件时所述UE进入低开销状态之后,通过所述输入单元 接收第一基站发送的无线资源控制RRC配置信息,所述RRC配置信息包括RRC配置索引,所述配置索引用于指示所述RRC配置信息;
    所述UE在所述低开销状态下使用所述RRC配置信息。
  83. 如权利要求82所述的用户设备,其特征在于,所述处理单元用于,在满足第一预设条件时,向第二小区所属的第二基站上报所述源标识,具体为:
    通过所述输出单元向所述第二小区所属的第二基站上报包括所述RRC配置索引的所述源标识,以便于所述第二基站根据所述RRC配置索引确定所述UE使用的RRC配置信息。
  84. 一种基站,其特征在于,所述基站为第二基站,所述第二基站包括:输入单元、输出单元、存储单元和处理单元;
    其中,所述存储单元用于存储程序代码,所述处理单元用于调用所述存储单元存储的程序代码执行如下步骤:
    通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识,其中,在所述低开销状态下所述UE存储所述UE在连接态的连接上下文,并且在移动过程中通过小区重选准则进行小区的驻留,所述第一小区为所述UE进入所述低开销状态时的服务小区,第二小区为所述UE当前的服务小区,所述源标识包括在所述第一小区所属的第一基站内识别所述UE的第一UE标识;
    根据所述源标识通过所述输出单元将所述第一UE标识发送给所述第一基站,以通知所述第一基站获知所述UE当前的服务小区为所述第二小区。
  85. 如权利要求84所述的基站,其特征在于,所述源标识包括识别所述第一小区的第一小区标识和在所述第一小区内唯一识别所述UE的第一UE标识,所述第一小区标识包括小区全局标识符ECGI、物理小区标识PCI或由区域标识以及所述第一小区在所述区域内的标识组成的小区标识中的至少一个;或者
    所述源标识包括唯一识别所述第一基站的第一基站标识和在所述第一基站内唯一识别所述UE的第一UE标识。
  86. 如权利要求84或85所述的基站,其特征在于,所述源标识还包括指示信息,所述指示信息用于向所述第二基站通知所述UE处于所述低开销状态。
  87. 如权利要求84-86任意一项所述的基站,其特征在于,所述处理单元还用于:
    通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE接入指示,以便于所述UE根据所述接入指示确定是否向所述第二基站发送所述源标识。
  88. 如权利要求84-86任意一项所述的基站,其特征在于,所述处理单元还用于:
    通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元发送系统信息广播,所述系统信息携带允许所述处于低开销状态下的UE上报源标识的类型,以便于所述UE根据所述源标识的类型确定采用短源标识或者长源标识。
    或者,通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,通过所述输出单元向UE分配短源标识和长源标识。
  89. 如权利要求84-86任意一项所述的基站,其特征在于,所述处理单元还用于:
    通过所述输入单元接收下行数据到达所述第一基站时或者接收到来自核心网的第一寻呼消息后,通过所述输出单元向第三基站发送第二寻呼消息。所述第三基站和所述第一基站属于同一寻呼区域。
  90. 如权利要求89所述的基站,其特征在于,所述处理单元还用于:
    通过所述输入单元接收下行数据到达所述第一基站之前,通过所述输入单元向接收核心网发送的寻呼参数信息,所述寻呼参数包括,UE的寻呼索引或 者UE DRX周期。所述寻呼参数用以计算UE的寻呼偏置。
  91. 如权利要求84-87任意一项所述的基站,其特征在于,所述处理单元还用于:通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识之前,
    通过所述输入单元接收UE发送的随机接入前导码;
    当所述随机接入前导码在预设范围时,通过所述输出单元向所述UE分配预设大小传输资源,以使得所述UE利用所述传输资源发送所述源标识。
  92. 如权利要求91所述的方法,其特征在于,所述预设范围内的随机接入前导码为预定义的前导码或者接收所述第二基站配置的前导码。
  93. 如权利要求84-87任意一项所述的基站,其特征在于,所述处理单元用于通过所述输入单元接收在低开销状态下的用户设备UE上报的源标识,具体为:
    通过所述输入单元接收在低开销状态下的用户设备UE发送的随机接入前导码;
    根据所述随机接入前导码通过所述输出单元分配专用UE标识和用于传输所述源标识的传输资源给所述UE,所述专用UE标识为在所述第二小区内唯一识别所述UE的标识;
    通过所述输入单元利用所述传输资源接收所述源标识;
    通过所述输出单元发送包含所述源标识的确认信息给所述UE。
  94. 如权利要求93所述的基站,其特征在于,所述处理单元通过所述输出单元发送包含所述源标识的确认信息给所述UE,具体为:
    通过所述输出单元发送包含所述源标识且携带有指示所述UE退出低开销状态的指令的确认消息给所述UE,以便于所述UE根据所述指令应用所述专用UE标识,并且退出所述低开销状态。
  95. 根据权利要求84-94任意一项所述的基站,其特征在于,所述处理单元通过所述输出单元根据所述源标识将所述第一UE标识发送给所述第一基站,具体为:
    通过所述输出单元根据所述源标识向所述第一基站发送通知消息,所述通知消息携带所述UE的所述源标识以及所述UE当前所在的第二小区的第二小区标识,以使得所述第一基站根据所述源标识和所述第二小区标识确定所述UE当前驻留的服务小区为所述第二小区。
  96. 如权利要求84-95任意一项所述的基站,其特征在于,所述处理单元还用于:
    通过所述输出单元所述根据所述源标识将所述第一UE标识发送给所述第一基站之后,接收所述UE发送的包含有所述源标识的上行数据指示;
    通过所述输出单元向所述第一基站发送所述连接上下文的转移请求,所述连接上下文为所述第一基站在所述UE进入低开销状态下存储的所述UE在连接态的连接上下文,所述上下文转移请求中携带UE的源标识;
    通过所述输入单元接收第一基站转移的所述连接上下文,并根据所述连接上下文建立于所述UE的连接。
  97. 如权利要求96所述的基站,其特征在于,所述处理单元还用于:
    通过所述输入单元接收第一基站转移的所述连接上下文之后,通过所述输出单元向所述UE发送重新分配的源标识,所述重新分配的源标识包括在所述第二基站内识别所述UE的第二UE标识;
    通过所述输出单元向所述UE发送指令指示所述UE退出所述低开销状态。
  98. 如权利要求84-97任意一项所述的基站,其特征在于,所述处理单元还用于:
    通过所述输出单元根据所述源标识将所述第一UE标识发送给所述第一基站之后,通过所述输出单元接收所述第一基站发送的所述连接上下文以及所述UE的源标识;
    根据接收到的所述连接上下文和所述源标识确定所述UE的配置信息,并根据所述源标识触发所述UE进行上行接入。
  99. 如权利要求98所述的基站,其特征在于,所述处理单元,用于根据所述源标识触发所述UE进行上行接入,具体为:
    以所述源标识向所述UE发起寻呼;或
    根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发送上行接入命令;或
    根据所述源标识确定所述UE的专用UE标识,以所述专用UE标识向所述UE发起寻呼。
  100. 如权利要求84-99任意一项所述的基站,其特征在于,所述源标识还包括无线控制资源RRC配置索引,所述处理单元还用于:
    通过所述输出单元接收在低开销状态下的用户设备UE上报的源标识之后,根据所述RRC配置索引确定所述UE使用的RRC配置信息。
  101. 如权利要求84-100任意一项所述的基站,其特征在于,所述处理单元,用于根据所述源标识通过所述输出单元将所述第一UE标识发送给所述第一基站,具体为:
    根据所述源标识,通过所述输出单元和所述第一基站之间的基站间接口向所述第一基站发送所述源标识;或
    根据所述源标识,通过所述输出单元和核心网向所述第一基站发送所述源标识。
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