WO2011134239A1 - 多载波切换处理方法及*** - Google Patents

多载波切换处理方法及*** Download PDF

Info

Publication number
WO2011134239A1
WO2011134239A1 PCT/CN2010/077628 CN2010077628W WO2011134239A1 WO 2011134239 A1 WO2011134239 A1 WO 2011134239A1 CN 2010077628 W CN2010077628 W CN 2010077628W WO 2011134239 A1 WO2011134239 A1 WO 2011134239A1
Authority
WO
WIPO (PCT)
Prior art keywords
target
base station
handover
scell
source base
Prior art date
Application number
PCT/CN2010/077628
Other languages
English (en)
French (fr)
Inventor
黄亚达
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/259,716 priority Critical patent/US8792895B2/en
Priority to JP2013506445A priority patent/JP5637647B2/ja
Priority to EP10850570.2A priority patent/EP2448350B1/en
Priority to BR112012021893-0A priority patent/BR112012021893B1/pt
Publication of WO2011134239A1 publication Critical patent/WO2011134239A1/zh

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/16—Interfaces between hierarchically similar devices
    • H04W92/20—Interfaces between hierarchically similar devices between access points

Definitions

  • FIG. 1 is a schematic diagram of an Evolved Universal Mobile Telecommunication System Radio Access Network (E-UTRAN) architecture according to a related art, a Long Term Evolution (LTE) system, as shown in the following figure.
  • E-UTRAN Evolved Universal Mobile Telecommunication System Radio Access Network
  • LTE Long Term Evolution
  • the LTE network consists of E-UTRAN and Evolved Packet Core (EPC), and the network is flat.
  • EPC Evolved Packet Core
  • the E-UTRAN is connected to the EPC through the S1 interface.
  • the E-UTRAN is composed of a plurality of interconnected Evolved NodeBs (hereinafter referred to as eNBs), and each eNB is connected through an X2 interface; the EPC is composed of a Mobility Management Entity (MME) and a new moon.
  • the Service Gateway (Single Gateway) is composed of a Serving Gateway (S-GW).
  • the user equipment User Equipment, UE for short
  • moves in the network coverage area which may cause changes in the serving cell of the UE.
  • the network assisted UE needs to be between the cells.
  • LTE-A LTE-Advanced proposes to use carrier aggregation to achieve greater bandwidth.
  • the UE can work on multiple consecutive or discontinuous carriers (each carrier is called For the component carrier, Component Carrier, referred to as CC).
  • CC Component Carrier
  • One of the component carriers is a primary component carrier (PCC)
  • SCC secondary component carrier
  • One serving cell in each component carrier provides services for the UE.
  • the serving cell on the PCC is the primary serving cell (Primary Cell, referred to as Pcell), and the serving cell on the SCC is the secondary cell (Scell). .
  • the radio resources of LTE-A may allocate more than one carrier, that is, at least one Pcell and zero to multiple Scells.
  • the target cell can be a plurality of cells
  • the source base station cannot determine which cell is the handover target cell, and thus the handover cannot be implemented.
  • a primary object of the present invention is to provide a multi-carrier switching processing method and system to solve at least the above problems.
  • a multi-carrier handover processing method including: determining, by a source base station, a target primary serving cell Pcell and a target secondary serving cell Scell according to an acquired carrier aggregation relationship between cells in a neighboring base station, and notifying a target base station to which the target Pcell and the target Scell belong; the target base station configures the target Pcell and the target Scell and the corresponding handover command, and sends the handover command to the source base station; the source base station forwards the handover command to the user equipment, and the user equipment completes the handover process according to the handover command.
  • the source base station acquires the support carrier aggregation relationship, and the source base station obtains the support carrier aggregation relationship by using the OAM configuration or the information exchange with the X2 interface.
  • the user equipment-complete handover process according to the handover command includes: the user equipment performs random access according to the target Pcell indicated in the handover command.
  • the source base station notifying the target base station includes: the source base station notifying the target base station by using a handover request message during the X2 handover process; and the target base station transmitting the handover command to the source base station includes: the target base station directly switching during the X2 handover process The command is sent to the source base station.
  • the source base station notifying the target base station includes: the source base station notifying the target base station by using the mobility management entity in the S1 handover process; the target base station transmitting the handover command to the source base station includes: the target base station is in the S 1 The handover command is sent to the source base station via the mobility management entity during handover.
  • a multi-carrier handover processing method including: determining, by a source base station, a target Pcell and a target Scell to be selected, and notifying a target Pcell and a target base station to which the target Scell to be selected belongs; a target Pcell, and the target Scell is selected according to the information of the RRC algorithm and the target Scell to be selected, and the target Scell is configured; the target base station configures a corresponding handover command according to the target Pcell and the target Scell, and sends the handover command to the source base station; The source base station forwards the handover command to the user equipment, and the user equipment completes the handover process according to the handover command.
  • the target base station-selecting the target Scell according to the information of the radio resource management algorithm and the target Scell to be selected includes: the target base station selects a carrier aggregation with the target Pcell according to the radio resource management algorithm, the local aggregation information, and the target Scell information to be selected. Community as a target Scell.
  • the user equipment-complete handover process according to the handover command includes: the user equipment performs random access according to the target Pcell indicated in the handover command.
  • the source base station notifying the target base station includes: the source base station notifying the target base station by using a handover request message during the X2 handover process; and the target base station transmitting the handover command to the source base station includes: the target base station directly switching during the X2 handover process The command is sent to the source base station.
  • the source base station notifying the target base station includes: the source base station notifying the target base station by using the mobility management entity in the S1 handover process; the target base station transmitting the handover command to the source base station includes: the target base station is in the S 1 The handover command is sent to the source base station via the mobility management entity during handover.
  • a multi-carrier handover processing method including: determining, by a source base station, a target Pcell to be selected and a target Scell to be selected, and notifying the target Pcell to be selected and the target base station to which the target Scell to be selected belongs
  • the target base station selects the target Pcell and the target Scell according to the information of the target Pcell to be selected and the target Scell to be selected;
  • the target base station configures the target Pcell and the target Scell and the corresponding handover command, and sends the handover command to the source base station;
  • the source base station forwards the handover command To the user equipment, the user equipment completes the handover process according to the handover command.
  • the target base station selects the target Pcell and the target Scell according to the information of the target Pcell and the Scell to be selected, including: the target base station, the radio resource management algorithm, the local resource, the load information, and the local aggregation information, and the target Pcell and Scell information to be selected, Selecting the target Pcell and the target ScelL that can perform carrier aggregation.
  • the user equipment-based handover command completes the handover process, including: the user equipment performs random access according to the target Pcell indicated in the handover command.
  • the source base station notifying the target base station includes: the source base station notifying the target base station by using a handover request message during the X2 handover process; and the target base station transmitting the handover command to the source base station includes: the target base station directly switching during the X2 handover process The command is sent to the source base station.
  • the source base station notifying the target base station includes: the source base station notifying the target base station by using the mobility management entity in the S1 handover process; the target base station transmitting the handover command to the source base station includes: the target base station is in the S 1 The handover command is sent to the source base station via the mobility management entity during handover.
  • a multi-carrier handover processing system including a source base station, a target base station, and a user equipment
  • the source base station includes: a first determining module, configured to obtain, according to the acquired support carrier between cells under the neighboring base station The aggregation relationship determines the target primary serving cell Pcell and the target secondary serving cell Scell;
  • the first notification module is configured to notify the target PeNB and the target base station to which the target Scell belongs to the determination result determined by the first determining module;
  • the target base station includes: a fourth receiving module, configured to receive the determination result from the first notification module; Configuring a target Pcell and a target Scell and a corresponding handover command;
  • a first sending module configured to send a handover command to the source base station;
  • the user equipment includes: a fifth receiving module, configured to receive a handover command from the first forwarding
  • a multi-carrier switching processing system including a source base station, a target base station, and a user equipment
  • the source base station includes: a second determining module, configured to determine a target Pcell and a target Scell to be selected; a second notification module, configured to notify the target Pcell and the target base station to which the target Scell to be selected belongs to the determination result determined by the determining module; the second receiving module is configured to receive a handover command from the target base station; Forwarding the handover command to the user equipment;
  • the target base station includes: a sixth receiving module, configured to receive the determination result from the second notification module; and a second selection module, configured to select the target Scell according to the radio resource management algorithm and the information of the target Scell to be selected a second configuration module, configured to: configure a target Pcell and a target Scell, and a corresponding handover command; a second sending module, configured to send a handover command to the source base station;
  • the user equipment includes: a second determining module, configured to
  • a multi-carrier handover processing system including a source base station, a target base station, and a user equipment
  • the source base station includes: a third determining module, configured to determine a target Pcell to be selected and a target to be selected a third notification module, configured to notify a target Pcell and a target base station to which the target Scell to be selected belongs to the determination result determined by the third determining module, and a third receiving module, configured to receive a handover command from the target base station; a module, configured to forward a handover command to the user equipment;
  • the target base station includes: an eighth receiving module, configured to receive a determination result from the third notification module; and a third selection module, configured to: according to the wireless management algorithm and the target Pcell to be selected Selecting the information of the target Scell to select the target Pcell and the target Scell;
  • the third configuration module is configured to configure the target Pcell and the target Scell and the corresponding handover command;
  • the third sending module is configured to send
  • the method for determining a Pcell and an Scell by using a source base station or a target base station by using the present invention solves the problem that the source base station cannot determine which cell is the handover target cell in the LTE-A multi-carrier system, and thus the handover cannot be implemented, thereby implementing the multi-carrier system. Switching.
  • FIG. 1 is a schematic diagram of an E-UTRAN architecture of an LTE system according to the related art
  • FIG. 2 is a flowchart of a first multi-carrier handover processing method according to an embodiment of the present invention
  • FIG. 3 is an embodiment of the present invention.
  • FIG. 4 is a flowchart of a second multi-carrier switching processing method according to an embodiment of the present invention.
  • FIG. 5 is a second multi-carrier switching processing according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a third multi-carrier switching processing method according to an embodiment of the present invention
  • FIG. 7 is a structural block diagram of a third multi-carrier switching processing system according to an embodiment of the present invention.
  • each base station directly communicates through the X2 interface, and switches in the S1.
  • each base station communicates via the MME.
  • Embodiment 1 According to an embodiment of the present invention, a multi-carrier switching processing method is provided. 2 is a flowchart of a first multi-carrier handover processing method according to an embodiment of the present invention. As shown in FIG. 2, the method includes the following steps: Step S202: The source base station according to the obtained neighboring base station between cells Support carrier aggregation The target primary month service cell Pcell and the target secondary month service cell Scell are determined, and the target Pcell and the target base station to which the target Scell belongs are notified.
  • Step 4 S204, the target base occupies the S target and the target Scell and the corresponding handover command, and sends the handover command to the source base station.
  • Step S206 The source base station forwards the handover command to the user equipment, and the user equipment completes the handover process according to the handover command.
  • the source base station in the LTE-A multi-carrier system cannot determine which cell is the handover target cell, and thus the handover cannot be implemented.
  • the source base station determines the target Pcell and the target Scell and implements the handover process, specifically
  • the source base station can learn which cells of the target base station can perform carrier aggregation with each other, such as the neighboring cell NCelll of CC1, the neighboring cell NCell2 of CC2, and the neighboring cell NCell3 of CC3, and the source base station is configured or automatically managed by the neighboring cell.
  • the function can know that the NCell, NCell2, and NCell3 belong to the same base station, and then the source base station confirms whether carrier aggregation can be performed between two or more cells between NCell 1, NCell2, and NCell3 according to the obtained supported carrier aggregation relationship.
  • the source base station can designate several cells under the target base station as the handover target cell of the UE, thereby implementing handover of the multi-carrier system.
  • the source base station obtains a carrier aggregation relationship by using an operation, management, and maintenance (OAM) configuration or interaction with the information of the X2 interface.
  • OAM operation, management, and maintenance
  • the source base station can obtain the support carrier aggregation relationship by means of pre-configuration or self-configuration.
  • the user equipment performs random access according to the target Pcell indicated in the handover command.
  • the user equipment performs data transmission with the target Pcell and the target Scell.
  • the source base station notifies the target base station by using a handover request message in the X2 handover process; in step S204, the target base station directly transmits the handover command to the source base station in the X2 handover process.
  • an X2 handover procedure for a multi-carrier system can be implemented.
  • the source base station notifies the target base station via the mobility management entity through the handover request message in the S1 handover procedure; in step S204, the target base station transmits the handover command via the mobility management entity in the S1 handover procedure. Send to the source base station.
  • the S1 handover procedure of the multi-carrier system can be implemented.
  • the implementation process of this embodiment will be described in detail below. It is assumed that the LTE-A UE performs CC1, CC2, and CC3 three-carrier aggregation in the cell under the source base station S-eNB, the cell Celll-1 on the CC1 is the primary cell, the Cell2-1 on the CC2 is the i-cell, and the CC3 has the Cell3- 1 is a secondary cell.
  • the S-eNB has a neighboring base station T-eNB, and the T-eNB supports four frequencies CC1, CC2, CC3 and CC4.
  • Celll-1, Cell2-1, and Cell3-1 are adjacent to Cell 1-2, Cell2-2, Cell3-2, and Cell4-2, that is, any cell under two base stations under a single carrier can be switched to each other.
  • the Cell 1-2, Cell2-2, and Cell4-2 of the T-eNB may perform carrier aggregation, and the Cell3-2 is a single carrier cell.
  • the source base station has obtained the support carrier aggregation relationship between the cells under the neighboring base station through the OAM configuration or the information exchange of the X2 interface.
  • the handover procedure is as follows:
  • the source base station determines the target Pcell and the target Scell, and notifies the target base station through the S 1/X2 handover process, and the target base station performs handover preparation according to the Pcell and the Scell determined by the source base station, and configures a corresponding handover command.
  • the source base station sends a handover command to the UE, and the UE completes the handover according to the random access performed by the target Pcell indicated in the handover command.
  • the premise of this embodiment is that the source base station needs to know the aggregation relationship between the neighboring cells under the neighboring base station before the handover.
  • the source base station can acquire the neighboring cells of the neighboring base stations by means of pre-configuration (such as OAM method) or self-configuration (such as X2 information). Therefore, in the LTE-A system, the configuration of the aggregation relationship can be performed in a pre-configured or self-configured manner.
  • pre-configuration such as OAM method
  • self-configuration such as X2 information
  • Neighbour Information cells including the neighboring cell's E-CGI (E- UTRA Cell Global Identification, Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Cell Global Identity;), PCI (Physical Cell Identification), EARFCN (E-UTRA Absolute Radio Frequency Channel Number) Frequency channel number), the two eNBs can know each other's cell configuration through the cell, and set it as their own neighboring cell. On this basis, the Aggregation Information is expanded, and the cells that can be aggregated with each other are grouped into a group to notify the other base station.
  • E-CGI E- UTRA Cell Global Identification, Evolved Universal Mobile Telecommunications System Terrestrial Radio Access Cell Global Identity
  • PCI Physical Cell Identification
  • EARFCN E-UTRA Absolute Radio Frequency Channel Number
  • the S-eNB when the X2 of the S-eNB and the T-eNB is initially established, the S-eNB sends an X2 Setup Request to the T-eNB, where the Neighbour Information contains information of Celll-1, Cell2-1 and Cell3-1, and is in Aggregation. Information indicates that Celll-1, Cell2-1, and Cell3-1 can be aggregated with each other.
  • the T-eNB After the T-eNB receives it, save the information and send X2 Setup Response to S-eNB, where Neighbour Information contains information of Cell 1-2, Cell2-2, Cell3-2 and Cell4-2, and indicates in Cell Agation Information that Cell 1-2, Cell2-2 and Cell4-2 can be aggregated with each other. Cell3-2 cannot be aggregated with other cells.
  • the change party passes the eNB Configuration Update.
  • the S-eNB knows the Aggregation Information of the T-eNB
  • the UE triggers the handover if the UE triggers the measurement of the A3 event, the upper 4 neighbor cell Cell2-2 is better than the current Pcell, that is, Cell 1-1.
  • the S-eNB decides to perform the handover. If the X2 handover is performed, the target cell ID of the target cell is indicated as Cell2-2 in the Handover Request message. In the scenario of LTE-A, the T-eNB interprets the Target Cell ID as the S-eNB requirement.
  • the target Pcell is Cell2-2, and carries the KeNB* generated by Cell2-2 and its corresponding NCC (Next hop Chaining Count) in the AS Security Information.
  • the S-eNB also indicates that the target Scell is Cell 1-2 and Cell 4-2 in the Handover Preparation Information carried in the message RRC Context.
  • the S-eNB is also a measurement report of the UE to select the target Scell, and it can be used after the handover. If it is an S 1 handover, the S-eNB fills in the eNB ID of the T-eNB in the Target ID of the Handover Required message, and carries the Source eNB to Target eNB Transparent Container in the Source to Target Transparent Container, the latter Target Cell ID and RRC.
  • the content of the Container is the same as the contents of the Target Cell ID and RRC Context in the Handover Request of X2 above. MME will only rely on Target ID ⁇ !
  • the message is sent to the T-eNB through the Handover Request Source eNB to Target eNB Transparent Container. When the T-eNB owes through the X2 Handover Request or the S1 Handover Request 4
  • the designated target Pcell is Cell 2-2, and the target Scell has two, which are Celll-2 and Cell 4-2, respectively.
  • the T-eNB performs resource preparation according to the carrier configuration, and configures a Handover Command of the handover command Uu interface according to the configuration.
  • the handover command indicates UE handover, and the target Pcell is Cell2-2, and the target Scell is Celll-2 and Cell4-2. There are also configuration information about these carriers, and resource reservation is performed locally.
  • the T-eNB carries the Handover Command through the cell Target eNB To Source eNB Transparent Container in the Handover Request Acknowledge.
  • the T-eNB sends a Handover Request Acknowledge to carry the above-mentioned cell Target eNB To Source eNB Transparent Container to the MME through the Target to Source Transparent Container, and the MME forwards the message to the S-eNB through the Handover Command. If the T-eNB fails to accept, such as the local resources of the Pcell or the Scell is limited, a failure response message needs to be replied. In the X2 handover, the Handover Preparation Failure is returned to the S-eNB, and when the S1 handover, the Handover Failure is returned, and the MME forwards the Handover Preparation Failure to the S-eNB.
  • the resulting handover failure affects the final handover success rate (when the carrier acceptance failure rate is p, and the N carriers are switched at the same time, the handover failure rate is N*p).
  • the T-eNB can successfully accept the Pcell and the Scell fails. Partially successful response, as in the embodiment, Cell2-2 is successfully accepted, Celll-2 and Cell4-2 only succeed in Celll-2, and the T-eNB configures Handover Command according to Pcell as Cell2-2 and Scell as Celll-2, and The related resources are reserved, and the Handover Command command is returned to the S-eNB according to the above procedure.
  • partial failure information may be indicated in the corresponding message, as indicated in this example, the Cell 4-2 admission failure is not configured in the Handover Command.
  • FIG. 3 is a structural block diagram of a first multi-carrier switching processing system according to an embodiment of the present invention. As shown in FIG.
  • the system includes a source base station 2, a target base station 4, and a user equipment 6.
  • the source base station 2 includes: a determining module 24, configured to determine a target primary month cell Pcell and a target secondary cell Scell according to the obtained supporting carrier aggregation relationship; the first notification module 26 is connected to the first determining module 24, for using the first The determination result determined by the determining module 24 is notified to the target base station to which the target Pcell and the target Scell belong; the first receiving module 28 is configured to receive a handover command from the target base station; and the first forwarding module 20 is connected to the first receiving module 28, Forwarding the switching command to the user equipment.
  • the target base station 4 includes: a fourth receiving module 40, connected to the first notification module 26 for receiving the determination result from the first notification module 26; a first configuration module 42 connected to the fourth receiving module 40, configured to configure the target Pcell And the target Scell and the corresponding handover command; the first sending module 44 is connected to the first configuration module 42 and the first receiving module 28, and is configured to send the handover command to the source base station.
  • the user equipment 6 includes: a fifth receiving module 60, connected to the first forwarding module 20 for receiving a switching command from the first forwarding module 20; a first switching module 62 connected to the fifth receiving module 60, configured to switch according to the switching command Complete the switching process.
  • the source base station cannot determine which cell is the handover target cell, and thus the handover cannot be implemented.
  • the target base station is determined by the source base station.
  • the source base station can know which cells of the target base station can perform carrier aggregation with each other, and when the handover decision is made, the load and resource information of multiple cells of the target base station can be accurately known, so
  • the source base station may specify several cells under the target base station as the handover target cell of the UE, thereby implementing handover of the multi-carrier system.
  • the first switching module 62 performs random access according to the target Pcell indicated in the handover command.
  • the user equipment performs data transmission with the target Pcell and the target Scell.
  • the first obtaining module 22 obtains a support carrier aggregation relationship by using an OAM configuration or interacting with the information of the X2 interface.
  • the source base station can obtain the support carrier aggregation relationship by means of pre-configuration or self-configuration.
  • the first notification module 26 notifies the target base station by using a handover request message during the X2 handover process; the first sending module 44 directly sends the handover command to the source base station in the X2 handover process.
  • an X2 handover procedure for a multi-carrier system can be implemented.
  • FIG. 4 is a flowchart of a second multi-carrier switching processing method according to an embodiment of the present invention. As shown in FIG. 4, the method includes the following steps: Step S402: The source base station determines a target Pcell and a target Scell to be selected.
  • Step S404 the target base station configures the target Pcell, and selects the target Scell according to the radio resource management (RRM) algorithm and the information of the to-be-selected target Scell, and configures the target ScelL step 4 to gather S406.
  • the target Pcell and the target Scell S respectively correspond to the ⁇ handover command, and send the handover command to the source base station.
  • Step S408 the source base station forwards the handover command to the user equipment, and the user equipment completes the handover command according to the handover command. Into the switching process.
  • the source base station cannot determine which cell is the handover target cell, thereby causing the handover to be impossible.
  • the target base station determines the target Pcell, and the target base station determines the target Scell, thereby implementing more Switching of the carrier system.
  • the target base station selects a cell that can perform carrier aggregation with the target Pcell as the target Scell according to the radio resource management algorithm, the local aggregation information, and the target Scell information to be selected.
  • the user equipment performs random access according to the target Pcell indicated in the handover command.
  • the user equipment performs data transmission with the target Pcell and the target Scell.
  • the source base station notifies the target base station by using a handover request message in the X2 handover process; in step S406, the target base station directly transmits the handover command to the source base station in the X2 handover process.
  • an X2 handover procedure for a multi-carrier system can be implemented.
  • the source base station notifies the target base station via the mobility management entity through the handover request message in the S1 handover procedure; in step S406, the target base station transmits the handover command via the mobility management entity in the S1 handover procedure. Send to the source base station.
  • the S1 handover procedure of the multi-carrier system can be implemented.
  • the implementation process of this embodiment will be described in detail below.
  • the configurations of the source base station and the target base station are the same as those in the first embodiment, and are not mentioned here.
  • the difference between the second embodiment and the first embodiment is as follows:
  • the Aggregation Information information of the neighboring base station is obtained by the S-eNB in a pre-configured or self-configured manner, and only the base station itself only knows its own Aggregation Information information.
  • the handover step is: the source base station determines the target Pcell, and notifies the target base station through the S 1/X2 handover process along with other possible target cells (possible Scells), and the target base station prepares resources according to the Pcell determined by the source base station, and transmits the data. Other possible target cells coming in are selected, and Pcell can perform carrier aggregation, and a suitable Scell.
  • the target base station configures the corresponding handover command according to the final Pcell and Scell.
  • the source base station sends a handover command to the UE, and the UE performs random access according to the target Pcell indicated in the handover command to complete the handover.
  • the S-eNB does not know the Aggregation Information of the T-eNB, when the UE triggers the handover, for example, the UE triggers the measurement of the A3 event, the upper 4 neighbor Cell 2-2 is better than the current Pcell, that is, Celll-1.
  • the S-eNB can determine that the target Pcell is Cell2-2, but cannot determine Celll-2, Cell3-2. Which cells in Cell4-2 can perform carrier aggregation with Cell2-2.
  • the target cell ID of the target cell is determined to be Cell 2-2 in the Handover Request message.
  • the T-eNB interprets the Target Cell ID as S-
  • the eNB requires the target Pcell to be Cell 2-2, and carries the KeNB* generated by Cell 2-2 and its corresponding NCC (Next hop Chaining Count) in the AS Security Information.
  • the S-eNB also carries in the message RRC Context.
  • the possible target Scells in the Handover Preparation Information are Cell 1-2, Cell3-2 and Cell4-2. If the UE has also passed the Cell 1-2, the Cell3-2 and Cell4-2 signals are better. It is reported that the S-eNB can select a possible target Scell according to the measurement report of the UE, and ensure that the T-eNB can select the target Scell from the cells that the UE can receive.
  • the Handover Required is similar to the first embodiment.
  • the MME will send the Source eNB to Target eNB Transparent Container to the T-eNB through the Handover Request according to the Target ID.
  • the target Pcell is Cell2-2, and there are three target Scells, which are respectively Cell 1-2. , Cell3-2 and Cell4-2.
  • the T-eNB searches for a cell that can perform carrier aggregation with the Pcell Cell 2-2 required by the S-eNB according to its Aggregation Information information.
  • Cell 1-2 and Cell 4-2 can perform carrier aggregation with Cell 2-2.
  • the T-eNB prepares the corresponding resources according to the P-cell Cell 2-2 specified by the S-eNB and the Scell Cell 1-2 and the Cell 4-2 selected by the S-eNB, and configures the Handover Command of the Uu interface according to the configuration, and switches the command.
  • the UE handover is indicated, and the target Pcell is Cell 2-2, the target Scell is Cell 1-2 and Cell 4-2, and other related configuration information of these carriers is also included.
  • the T-eNB carries the Handover Command through the cell Target eNB To Source eNB Transparent Container in the Handover Request Acknowledge.
  • the T-eNB sends a Handover Request Acknowledge to carry the above-mentioned cell Target eNB To Source eNB Transparent Container to the MME through the Target to Source Transparent Container, and the MME forwards the message to the S-eNB through the Handover Commandquaint If the T-eNB fails to accept If the local resource of the Pcell is limited, the failure response message needs to be replied.
  • the Handover Preparation Failure is returned to the S-eNB.
  • the SI handover the Handover Failure is returned, and the MME receives the Handover Preparation Failure to the S-eNB.
  • FIG. 5 is a structural block diagram of a second multi-carrier switching processing system according to an embodiment of the present invention. As shown in FIG.
  • the system includes a source base station 2, a target base station 4, and a user equipment 6.
  • the source base station 2 includes: The second determining module 12 is configured to determine the target Pcell and the target Scell to be selected.
  • the second notification module 14 is connected to the second determining module 12, and is configured to notify the target Pcell and the target to be selected of the determination result determined by the second determining module 12.
  • the target base station to which the S cell belongs; the second receiving module 16 is configured to receive a handover command from the target base station; and the second forwarding module 18 is connected to the second receiving module 16 for forwarding the handover command to the user equipment.
  • the target base station 4 includes: a sixth receiving module 30 connected to the second notification module 14 for receiving the determination result from the second notification module 14; a second selection module 32 connected to the sixth receiving module 30 for wireless a resource management algorithm and an information selection target Scell of the target Scell to be selected; a second configuration module 34, connected to the sixth receiving module 30 and the second selecting module 32, configured to configure the target Pcell and the target Scell and the corresponding switching command;
  • the sending module 36 is connected to the second configuration module 34 for transmitting the handover command to the source base station.
  • the user equipment 6 includes: a seventh receiving module 50, connected to the second forwarding module 18, for receiving a switching command from the second forwarding module 18; a second switching module 52, connected to the seventh receiving module 50, for switching The command completes the switching process.
  • the source base station cannot determine which cell is the handover target cell, thereby causing the handover to be impossible.
  • the target base station determines the target Pcell, and the target base station determines the target Scell, thereby implementing more Switching of the carrier system.
  • the second switching module 52 performs random access according to the target Pcell indicated in the handover command. Thereafter, the user equipment performs data transmission with the target Pcell and the target Scell.
  • the second notification module 14 notifies the target base station by using a handover request message in the X2 handover process; the second sending module 36 directly sends the handover command to the source base station in the X2 handover process.
  • an X2 handover procedure for a multi-carrier system can be implemented.
  • the second notification module 14 notifies the target base station via the mobility management entity through the handover request message during the S1 handover process; the second transmission module 36 transmits the handover command to the source base station via the mobility management entity during the S1 handover procedure.
  • the S1 handover procedure of the multi-carrier system can be implemented.
  • Embodiment 3 According to an embodiment of the present invention, a multi-carrier switching processing method is provided.
  • FIG. 6 is a flowchart of a third multi-carrier switching processing method according to an embodiment of the present invention.
  • the method includes the following steps: Step S602: The source base station determines a target Pcell to be selected and a target to be selected. Scell, and notifying the target base station to be selected and the target base station to which the target Scell to be selected belongs. Step S604, the target base station selects the target Pcell and the target Scell according to the information of the target Pcell to be selected and the target Scell to be selected. Step S606: The target base station configures the target Pcell and the target Scell and the corresponding handover command, and sends the handover command to the source base station.
  • Step S608 The source base station forwards the handover command to the user equipment, and the user equipment completes the handover procedure according to the handover command.
  • the source base station in the LTE-A multi-carrier system cannot determine which cell is the handover target cell, thereby causing the handover to be impossible.
  • the target base station determines the target Pcell and the target Scell, thereby implementing the multi-carrier system. Switch.
  • the target base station selects the target Pcell and the target Scell capable of carrier aggregation according to the radio resource management algorithm, the local resource, the load information, and the local aggregation information, and the target Pcell and Scell information to be selected.
  • step S608 the user equipment performs random access according to the target Pcell indicated in the handover command. Thereafter, the user equipment performs data transmission with the target Pcell and the target Scell.
  • the source base station notifies the target base station by using a handover request message in the X2 handover process; in step S606, the target base station directly transmits the handover command to the source base station in the X2 handover process.
  • an X2 handover procedure for a multi-carrier system can be implemented.
  • the source base station notifies the target base station via the mobility management entity through the handover request message in the S1 handover procedure; in step S606, the target base station transmits the handover command via the mobility management entity in the S1 handover procedure. Send to the source base station.
  • the S1 handover procedure of the multi-carrier system can be implemented. The implementation process of this embodiment will be described in detail below.
  • the configurations of the source base station and the target base station are the same as those in the first embodiment, and are not mentioned here.
  • the third embodiment is similar to the second embodiment.
  • the Aggregation Information information of the neighboring base station is obtained by the S-eNB in a pre-configured or self-configured manner.
  • the target base station can modify the primary serving cell required by the source base station according to its own resources and load conditions, in addition to selecting the target secondary serving cell.
  • the handover procedure is: the source base station determines the possible target Pcell, and notifies the target base station through the S 1/X2 handover process together with other possible target cells (possible Scells), and the target base station follows the possible Pcell and Scell information transmitted by the source base station. Select the appropriate Pcell and Scell with local resources and load information.
  • the target base station configures the corresponding handover command according to the final Pcell and Scell.
  • the source base station sends a handover command to the UE, and the UE performs random access according to the target Pcell indicated in the handover command to complete the handover. Since the S-eNB does not know the Aggregation Information of the T-eNB, when the UE triggers the handover, for example, the UE triggers the measurement of the A3 event, the upper 4 ⁇ neighbor Cell2-2 is better than the current Pcell, that is, Celll-1. The S-eNB may decide that the target Pcell is Cell2-2, but cannot determine which of the Celll-2, Cell3-2, and Cell4-2 cells can perform carrier aggregation with Cell2-2.
  • the target cell ID of the target cell is indicated as Cell2-2 in the Handover Request message, and the T-eNB interprets this as the S-eNB requirement in the LTE-A scenario.
  • the target Pcell is Cell2-2, and carries the KeNB* generated by Cell2-2 and its corresponding NCC (Next hop Chaining Count) in the AS Security Information.
  • the S-eNB also carries the Handover in the message RRC Context.
  • the possible target Scells indicated in the Preparation Information are Cell 1-2, Cell3-2 and Cell4-2.
  • the S-eNB may select a possible target Scell according to the measurement report of the UE, and ensure that the T-eNB can select the target Scell from the cells that the UE can receive.
  • the Transparent Container carries the Source eNB to the Target eNB Transparent Container, and the contents of the Target Cell ID and the RRC Container are the same as the contents of the Target Cell ID and the RRC Context in the Handover Request of the X2.
  • the MME will forward the message to the T-eNB through the Handover Request according to the Target ID.
  • the target Pcell is Cell2-2, and there are three target Scells, which are respectively Cell 1-2. , Cell3-2 and Cell4-2.
  • the T-eNB may be configured according to the self-resources and the load, and the Aggregation Information information corresponding to each cell, according to the specified Pcell of the target base station. This situation is consistent with the subsequent process of the second embodiment, or may be determined by the tampering of the S-eNB.
  • Pcell the new PCell is Celll-2, and only one Scell is configured for Cell4-2.
  • the Pcell Celll-2 and the Scell Cell4-2 that are finally selected by the T-eNB perform corresponding resource preparation for the carrier configuration, and configure the Handover Command of the handover command Uu interface according to the configuration, the UE handover is indicated in the handover command, and the target Pcell is Celll- 2.
  • the target Scell is Cell4-2, and other related configuration information of the two carriers.
  • the T-eNB carries the Handover Command through the cell Target eNB To Source eNB Transparent Container in the Handover Request Acknowledge.
  • the T-eNB sends a Handover Request Acknowledge to carry the above-mentioned cell Target eNB To Source eNB Transparent Container to the MME through the Target to Source Transparent Container, and the MME forwards the message to the S-eNB through the Handover Command.
  • the T-eNB fails to accept, for example, because the resource is limited and cannot find a suitable Pcell or Scell, a failure response message needs to be replied.
  • the Handover Preparation Failure is returned to the S-eNB.
  • the SI handover the Handover Failure is returned, and the MME receives the Handover Preparation Failure to the S-eNB.
  • the S-eNB receives the Handover Command of the Uu interface sent by the T-eNB (or forwarded by the MME), and sends the Handover Command to the UE through the RRC Connection Reconfiguration command of the air interface.
  • the UE initiates the random access on the Celll-2 according to the target Pcell Celll-2 indicated by the message, and sends the RRC Connection Reconfiguration Complete T-eNB after the success. After the message is received, it is consistent with the subsequent process of the LTE, and the S- Resource release of the eNB.
  • a multi-carrier handover processing system is provided.
  • FIG. 7 is a structural diagram of a third multi-carrier handover processing system according to an embodiment of the present invention, as shown in Figure 7,
  • the system includes a source base station 2, a target base station 4, and a user equipment 6.
  • the source base station 2 includes: a third determining module 72, configured to determine a target Pcell to be selected and to be selected.
  • the third notification module 74 is connected to the third determining module 72, configured to notify the target Pcell and the target base station to which the target Scell to be selected belongs to the determination result determined by the third determining module, and the third receiving module 76 is configured to: Receiving a handover command from the target base station; the third forwarding module 78 is connected to the third receiving module 76 for forwarding the handover command to the user equipment.
  • the target base station 4 includes: an eighth receiving module 82, connected to the third notification module 74, for receiving the determination result from the third notification module 74.
  • the third selection module 84 is connected to the eighth receiving module 82 for local The resource, the load information, and the information of the target Pcell and the target Scell to be selected, the target Pcell and the target Scell;
  • the third configuration module 86 is connected to the third selection module 84, configured to configure the target Pcell and the target Scell and the corresponding switch.
  • the third sending module 88 is connected to the third configuration module 86 for transmitting the handover command to the source base station.
  • the user equipment 6 includes: a ninth receiving module 92, connected to the third forwarding module 78, for receiving a switching command from the third forwarding module 78; and a third switching module 94 connected to the ninth receiving module 92 for switching The command completes the switching process.
  • the source base station in the LTE-A multi-carrier system cannot determine which cell is the handover target cell, thereby causing the handover to be impossible.
  • the target base station determines the target Pcell and the target Scell, thereby implementing the multi-carrier system. Switch.
  • the third selection module 84 selects a target Pcell and a target Scell capable of performing carrier aggregation by using a radio resource management algorithm, local resources, load information, and local aggregation information, and the to-be-selected targets p ce ll and Scell information.
  • the third switching module 94 performs random access according to the target Pcell indicated in the handover command. Thereafter, the user equipment performs data transmission with the target Pcell and the target Scell.
  • the third notification module 74 notifies the target base station by using a handover request message in the X2 handover process; the third sending module 88 directly sends the handover command to the source base station in the X2 handover process.
  • an X2 handover procedure for a multi-carrier system can be implemented.
  • the third notification module 74 notifies the target base station via the mobility management entity through the handover request message in the S1 handover process; the third transmission module 88 transmits the handover command to the source base station via the mobility management entity during the S1 handover procedure.
  • the S1 handover procedure of the multi-carrier system can be implemented.
  • the target base station determines the target Pcell and the target Scell, or the source base station determines the target Pcell and the target base station determines the target Scell, or the target base station determines the target Pcell and the target Scell, which solves the problem that the source base station cannot determine which cell is the handover target cell in the LTE-A multi-carrier system, and the handover cannot be implemented.
  • the problem in turn, enables the switching of multi-carrier systems.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • the computing device may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Description

多载波切换处理方法及*** 技术领域 本发明涉及通信领域， 具体而言， 涉及多载波切换处理方法及***。 背景技术 图 1是根据相关技术的长期演进（Long Term Evolution, 简称为 LTE ) 系 统 的 演进全球陆 地 无 线接入 网 ( Evolved Universal Mobile Telecommunication System Radio Access Network, 简称为 E-UTRAN )架构示 意图， 如图 1 所示， LTE 网络由 E-UTRAN和演进分组交换中心 （Evolved Packet Core , 简称为 EPC )组成， 网络呈现扁平化。 E-UTRAN通过 S 1接口 与 EPC相连。其中， E-UTRAN由多个相互连接的演进基站（ Evolved NodeB, 简称为 eNB )组成， 各个 eNB之间通过 X2接口连接； EPC由移动性管理实 体 ( Mobility Management Entity, 简称为 MME ) 和月艮务网关实体 ( Serving Gateway, 简称为 S-GW ) 组成。 在 LTE网络***中， 由于用户设备 ( User Equipment, 简称为 UE )在网 络覆盖区域移动， 可能会引起 UE的服务小区的变化， 为了保持 UE的业务 连续性， 需要网络辅助 UE在各个小区之间进行切换， 其中切换的发起方称 之为源侧， 切换的目的方称之为目标侧。 为了满足人们对更高带宽的需求， LTE- A ( LTE- Advanced ) 提出釆用载 波聚合的方法实现更大带宽的目的， 此时 UE可以工作在多个连续或不连续 的载波 （各个载波称为分量载波， Component Carrier, 简称为 CC )。 分量载 波中有一个为主分量载波 ( Primary Component Carrier, 简称为 PCC ) ,其它 载波为辅分量载波 （ Secondary Component Carrier, 简称为 SCC )。 每个分量 载波中有一个服务小区为 UE提供服务， 在 PCC上的服务小区为主服务小区 ( Primary Cell, 简称为 Pcell ), SCC上的服务小区为辅服务小区 （ Secondary Cell, 简称为 Scell )。 LTE-A的无线资源可以分配一个以上的载波， 即至少一 个 Pcell和零至多个 Scell。 在相关技术的 LTE-A多载波***中， 当目标小区可以是多个小区时， 源 基站无法确定哪个小区作为切换目标小区， 因此无法实现切换。 发明内容 本发明的主要目的在于提供多载波切换处理方法及***， 以至少解决上 述问题。 根据本发明的一个方面， 提供了一种多载波切换处理方法， 包括： 源基 站根据获取的邻基站下小区之间的支持载波聚合关系确定目标主服务小区 Pcell和目标辅服务小区 Scell, 并通知目标 Pcell和目标 Scell所属的目标基 站； 目标基站配置目标 Pcell和目标 Scell以及对应的切换命令， 并将切换命 令发送给源基站； 源基站转发切换命令给用户设备， 用户设备根据切换命令 完成切换过程。 进一步地， 源基站获取支持载波聚合关系包括： 源基站通过运行、 管理 和维护 OAM配置或者与 X2口的信息交互， 获取支持载波聚合关系。 进一步地， 用户设备 -据切换命令完成切换过程包括： 用户设备才艮据切 换命令中指示的目标 Pcell进行随机接入。 进一步地， 该方法中， 源基站通知目标基站包括： 源基站在 X2切换过 程中通过切换请求消息通知目标基站； 目标基站将切换命令发送给源基站包 括： 目标基站在 X2切换过程中直接将切换命令发送给源基站。 进一步地， 该方法中， 源基站通知目标基站包括： 源基站在 S 1 切换过 程中通过切换请求消息经由移动性管理实体通知目标基站； 目标基站将切换 命令发送给源基站包括： 目标基站在 S 1 切换过程中经由移动性管理实体将 切换命令发送给源基站。 才艮据本发明的一个方面， 还提供了一种多载波切换处理方法， 包括： 源 基站确定目标 Pcell和待选择目标 Scell,并通知目标 Pcell和待选择目标 Scell 所属的目标基站； 目标基站配置目标 Pcell , 并才艮据无线资源管理算法和待选 择目标 Scell的信息选择目标 Scell, 以及配置目标 Scell; 目标基站按照目标 Pcell和目标 Scell配置对应的切换命令， 并将切换命令发送给源基站； 源基 站转发切换命令给用户设备， 用户设备根据切换命令完成切换过程。 进一步地， 目标基站 -据无线资源管理算法和待选择目标 Scell 的信息 选择目标 Scell 包括： 目标基站根据无线资源管理算法、 本地的聚合信息和 待选择目标 Scell 信息， 选择能与目标 Pcell 进行载波聚合的小区作为目标 Scell。 进一步地， 用户设备 -据切换命令完成切换过程包括： 用户设备才艮据切 换命令中指示的目标 Pcell进行随机接入。 进一步地， 该方法中， 源基站通知目标基站包括： 源基站在 X2切换过 程中通过切换请求消息通知目标基站； 目标基站将切换命令发送给源基站包 括： 目标基站在 X2切换过程中直接将切换命令发送给源基站。 进一步地， 该方法中， 源基站通知目标基站包括： 源基站在 S 1 切换过 程中通过切换请求消息经由移动性管理实体通知目标基站； 目标基站将切换 命令发送给源基站包括： 目标基站在 S 1 切换过程中经由移动性管理实体将 切换命令发送给源基站。 才艮据本发明的一个方面， 又提供了一种多载波切换处理方法， 包括： 源 基站确定待选择目标 Pcell和待选择目标 Scell,并通知待选择目标 Pcell和待 选择目标 Scell所属的目标基站； 目标基站根据待选择目标 Pcell和待选择目 标 Scell的信息选择目标 Pcell和目标 Scell; 目标基站配置目标 Pcell和目标 Scell以及对应的切换命令， 并将切换命令发送给源基站； 源基站转发切换命 令给用户设备， 用户设备根据切换命令完成切换过程。 进一步地， 目标基站根据待选择目标 Pcell和 Scell的信息选择目标 Pcell 和目标 Scell 包括： 目标基站 居无线资源管理算法、 本地的资源、 负载信 息和本地的聚合信息以及待选择目标 Pcell和 Scell信息， 选择能进行载波聚 合的目标 Pcell和目标 ScelL 进一步地， 用户设备 -据切换命令完成切换过程包括： 用户设备才艮据切 换命令中指示的目标 Pcell进行随机接入。 进一步地， 该方法中， 源基站通知目标基站包括： 源基站在 X2切换过 程中通过切换请求消息通知目标基站； 目标基站将切换命令发送给源基站包 括： 目标基站在 X2切换过程中直接将切换命令发送给源基站。 进一步地， 该方法中， 源基站通知目标基站包括： 源基站在 S 1 切换过 程中通过切换请求消息经由移动性管理实体通知目标基站； 目标基站将切换 命令发送给源基站包括： 目标基站在 S 1 切换过程中经由移动性管理实体将 切换命令发送给源基站。 根据本发明的一个方面，提供了一种多载波切换处理***， 包括源基站、 目标基站和用户设备， 源基站包括： 第一确定模块， 用于根据获取的邻基站 下小区之间的支持载波聚合关系确定目标主服务小区 Pcell 和目标辅服务小 区 Scell; 第一通知模块， 用于将第一确定模块确定的确定结果通知给目标 Pcell和目标 Scell所属的目标基站； 第一接收模块， 用于接收来自目标基站 的切换命令； 第一转发模块， 用于转发切换命令给用户设备； 目标基站包括： 第四接收模块， 用于接收来自第一通知模块的确定结果； 第一配置模块， 用 于配置目标 Pcell和目标 Scell以及对应的切换命令； 第一发送模块， 用于将 切换命令发送给源基站； 用户设备包括： 第五接收模块， 用于接收来自第一 转发模块的切换命令； 第一切换模块， 用于根据切换命令完成切换过程。 才艮据本发明的一个方面， 还提供了一种多载波切换处理***， 包括源基 站、 目标基站和用户设备， 源基站包括： 第二确定模块， 用于确定目标 Pcell 和待选择目标 Scell; 第二通知模块， 用于将确定模块确定的确定结果通知给 目标 Pcell和待选择目标 Scell所属的目标基站； 第二接收模块， 用于接收来 自目标基站的切换命令； 第二转发模块， 用于转发切换命令给用户设备； 目 标基站包括： 第六接收模块， 用于接收来自第二通知模块的确定结果； 第二 选择模块， 用于根据无线资源管理算法和待选择目标 Scell 的信息选择目标 Scell; 第二配置模块，用于配置目标 Pcell和目标 Scell以及对应的切换命令； 第二发送模块， 用于将切换命令发送给源基站； 用户设备包括： 第七接收模 块， 用于接收来自第二转发模块的切换命令； 第二切换模块， 用于根据切换 命令完成切换过程。 才艮据本发明的一个方面， 又提供了一种多载波切换处理***， 包括源基 站、 目标基站和用户设备， 源基站包括： 第三确定模块， 用于确定待选择目 标 Pcell和待选择目标 Scell; 第三通知模块， 用于将第三确定模块确定的确 定结果通知给目标 Pcell和待选择目标 Scell所属的目标基站；第三接收模块 , 用于接收来自目标基站的切换命令； 第三转发模块， 用于转发切换命令给用 户设备； 目标基站包括： 第八接收模块， 用于接收来自第三通知模块的确定 结果； 第三选择模块， 用于根据无线管理算法和待选择目标 Pcell 和待选择 目标 Scell的信息选择目标 Pcell和目标 Scell; 第三配置模块， 用于配置目标 Pcell和目标 Scell以及对应的切换命令； 第三发送模块， 用于将切换命令发 送给源基站； 用户设备包括： 第九接收模块， 用于接收来自第三转发模块的 切换命令； 第三切换模块， 用于根据切换命令完成切换过程。 通过本发明， 釆用源基站或目标基站确定 Pcell和 Scell的方法， 解决了 LTE-A多载波***中源基站无法确定哪个小区作为切换目标小区导致无法实 现切换的问题， 进而实现了多载波***的切换。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的 不当限定。 在附图中： 图 1是根据相关技术的 LTE***的 E-UTRAN架构示意图； 图 2是 居本发明实施例的第一种多载波切换处理方法的流程图； 图 3是 居本发明实施例的第一种多载波切换处理***的结构框图； 图 4是 居本发明实施例的第二种多载波切换处理方法的流程图； 图 5是 居本发明实施例的第二种多载波切换处理***的结构框图； 图 6是 居本发明实施例的第三种多载波切换处理方法的流程图； 图 7是 居本发明实施例的第三种多载波切换处理***的结构框图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是， 在 不冲突的情况下， 本申请中的实施例及实施例中的特征可以相互组合。 在 LTE-A多载波***的切换过程中， 主要包括源基站、 目标基站和用户 设备， 在进行切换的过程中， 在 X2切换过程中， 各基站间直接通过 X2接口 进行通信， 在 S 1切换过程中， 各基站间经由 MME进行通信。 实施例一 根据本发明的实施例， 提供了一种多载波切换处理方法。 图 2是根据本 发明实施例的第一种多载波切换处理方法的流程图， 如图 2所示， 包括如下 的步 4聚： 步骤 S202,源基站根据已获取的邻基站下小区之间的支持载波聚合关系 确定目标主月艮务小区 Pcell和目标辅月艮务小区 Scell,并通知目标 Pcell和目标 Scell所属的目标基站。 步 4聚 S204 , 目标基占 S己置目标 Pcell和目标 Scell 及对应的切换命令， 并将切换命令发送给源基站。 步骤 S206, 源基站转发切换命令给用户设备， 用户设备根据切换命令完 成切换过程。 在相关技术中， LTE-A多载波***中源基站无法确定哪个小区作为切换 目标小区进而导致无法实现切换， 通过该实施例， 由源基站确定目标 Pcell 和目标 Scell 并实现切换的过程， 具体地， 源基站可以获知目标基站的哪几 个小区之间可以相互进行载波聚合， 如 CC1 的邻区 NCelll , CC2上的邻区 NCell2和 CC3上的邻区 NCell3 , 源基站通过配置或者自动邻区管理功能可 以知道 NCelll、 NCell2和 NCell3所归属同一个基站， 然后源基站根据获取 的支持载波聚合关系确认 NCell 1、 NCell2和 NCell3之间的 2个或者多个小 区间是否可以进行载波聚合， 这样， 源基站做出切换判决时， 可以确切了解 目标基站的多个小区的负载以及资源信息， 因此， 源基站可以指定目标基站 下的几个小区作为 UE的切换目标小区， 进而实现了多载波***的切换。 优选地， 在步骤 S202 中， 源基站通过运行、 管理和维护 （Operation Administration and Maintenance, 简称为 OAM ) 配置或者与 X2口的信息交 互， 获取支持载波聚合关系。 通过该优选实施例， 源基站可以通过预配置或 自配置的方式来获取支持载波聚合关系。 优选地， 在步骤 S206中， 用户设备根据切换命令中指示的目标 Pcell进 行随机接入。 此后， 用户设备与目标 Pcell和目标 Scell进行数据传输。 进一步地， 在步骤 S202中， 源基站在 X2切换过程中通过切换请求消息 通知目标基站； 在步骤 S204中， 目标基站在 X2切换过程中直接将切换命令 发送给源基站。 通过该优选实施例， 可以实现多载波***的 X2切换过程。 进一步地， 在步骤 S202中， 源基站在 S 1切换过程中通过切换请求消息 经由移动性管理实体通知目标基站； 在步骤 S204中， 目标基站在 S 1切换过 程中经由移动性管理实体将切换命令发送给源基站。 通过该优选实施例， 可 以实现多载波***的 S 1切换过程。 以下对该实施例的实现过程进行详细说明。 假设有 LTE-A UE在源基站 S-eNB下的小区进行 CC1 , CC2和 CC3三 载波聚合， CC1上的小区 Celll-1为主小区， CC2上 Cell2-1为 i 小区， CC3 上有 Cell3-1为辅小区。 S-eNB有邻基站 T-eNB, T-eNB支持 4个频率 CC1 , CC2, CC3和 CC4。 其中 CC1上有小区 Cell 1-2, CC2上有小区 Cell2-2, CC3 上有小区 Cell3-2和 CC4上有小区 Cell4-2。 其中 Celll-1、 Cell2-1和 Cell3-1 与 Cell 1-2、 Cell2-2、 Cell3-2和 Cell4-2互为邻区， 即单载波下 2个基站下的 任意小区之间可以相互切换， 其中 T-eNB的 Cell 1-2, Cell2-2和 Cell4-2可以 做载波聚合， Cell3-2则是单载波小区。 源基站已通过 OAM配置或者 X2 口的信息交互， 获取邻基站下小区之 间的支持载波聚合关系。 切换步骤为： 源基站决定目标 Pcell和目标 Scell, 并通过 S 1/X2的切换过程中通知目标基站， 目标基站按照源基站决定的 Pcell 和 Scell进行切换准备，并配置对应的切换命令。源基站发送切换命令给 UE, UE根据切换命令中指示的目标 Pcell进行的随机接入， 完成切换。 该实施例的前提在于源基站在切换前需要知道邻基站下的邻小区之间的 可聚合关系。 在 LTE***中源基站可以通过预配置 （如 OAM的方法）或者 自配置 （如 X2信息） 的方式可以获取相邻基站的邻区。 所以在 LTE-A*** 中也可以通过预配置或者自配置的方式进行聚合关系的配置。 以自配置方法为例， 才艮据现有的自配置过程， 有通过 X2初始建立过程 获取邻区关系，还有通过 X2更新过程获取邻区关系。在 X2建立请求（ Setup Request ) , Χ2 建立响应 ( Setup Response ) 以及基站配置更新 （ eNB Configuration Update ) 消息中啫有邻区信息 （ Neighbour Information )信元， 其中包括邻小区的 E-CGI ( E-UTRA Cell Global Identification, 演进的通用移 动通信***陆地无线接入小区全球标识；)， PCI ( Physical Cell Identification, 物理小区标识）， EARFCN ( E-UTRA Absolute Radio Frequency Channel Number, 演进的通用移动通信***无线频率信道号）， 通过该信元两个 eNB 之间可以互相知道对方的小区配置， 并设置为自己的邻区。 在此基础上扩充 信元聚合信息 （Aggregation Information ), 将相互间可以聚合的小区分成一 组通知对方基站。 在本例中 S-eNB和 T-eNB的 X2初始建立时， S-eNB发送 X2 Setup Request给 T-eNB,其中 Neighbour Information包含 Celll-1 , Cell2-1 和 Cell3-1 的信息， 并在 Aggregation Information指明 Celll-1、 Cell2-1 和 Cell3-1 可以相互间聚合。 T-eNB 收到后， 将信息保存， 并发送 X2 Setup Response给 S-eNB ,其中 Neighbour Information包含 Cell 1-2 , Cell2-2、 Cell3-2 和 Cell4-2 的信息， 并在 Aggregation Information指明 Cell 1-2 , Cell2-2 和 Cell4-2 可以相互间聚合， Cell3-2 则不能和其它小区聚合。 当聚合关系发生 变更时， 变更方通过 eNB Configuration Update通^^目 4基占。 当 S-eNB了解 T-eNB的 Aggregation Information后，在 UE触发切换时， 如 UE触发测量 4艮告 A3事件， 上 4艮邻区 Cell2-2好于当前 Pcell即 Cell 1- 1。 S-eNB判决进行切换， 如果进行的是 X2切换， 在 Handover Request消息中 指明目标小区 Target Cell ID为 Cell2-2 , 在 LTE-A的场景下 T-eNB将 Target Cell ID解释为 S-eNB要求目标 Pcell为 Cell2-2,并在 AS Security Information 携带以 Cell2-2提供入参生成的 KeNB*和其对应的 NCC ( Next hop Chaining Count )。 S-eNB还会在该消息 RRC Context 中携带的 Handover Preparation Information中指明目标 Scell为 Cell 1-2和 Cell4-2。 一般情况下 S-eNB也是 UE的测量报告来选择目标 Scell, 确保切换后可以使用。 如果是 S 1 切换， S-eNB则在 Handover Required消息的 Target ID中填写 T-eNB的 eNB ID,并 在 Source to Target Transparent Container中携带 Source eNB to Target eNB Transparent Container,后者 Target Cell ID和 RRC Container的内容和上述 X2 的 Handover Request中的 Target Cell ID和 RRC Context的内容相同。 MME 会才艮据 Target ID ^！夺消息通过 Handover Request Source eNB to Target eNB Transparent Container碑舍发到 T-eNB。 当 T-eNB通过 X2的 Handover Request或者 S 1的 Handover Request 4欠到
S-eNB的切换配置， 指定目标 Pcell为 Cell2-2, 目标 Scell有 2个， 分别为 Celll-2和 Cell4-2。 T-eNB按此载波配置进行资源准备， 并按此配置切换命令 Uu接口的 Handover Command, 切换命令中指明 UE切换， 并且目标 Pcell 为 Cell2-2 , 目标 Scell为 Celll-2和 Cell4-2, 其它还有这几个载波的相关配 置信息， 并在本地进行资源保留。 如果是 X2 切换， T-eNB 通过 Handover Request Acknowledge 中的信元 Target eNB To Source eNB Transparent Container携带 Handover Command。 如果是 S I切换， T-eNB发送 Handover Request Acknowledge通过 Target to Source Transparent Container携带上述信 元 Target eNB To Source eNB Transparent Container给 MME, 由 MME通过 Handover Command转发给 S-eNB。 如果 T-eNB发生接纳失败， 如 Pcell或者 Scell的本地资源受限，需要回复失败响应消息。在 X2切换时，回复 Handover Preparation Failure给 S-eNB , S 1切换时， 回复 Handover Failure , MME ) 到 后转发 Handover Preparation Failure给 S-eNB。 为了避免因为 Scell接纳失败 导致的切换失败从而影响最终的切换成功率 （一个载波接纳失败率为 p时， 同时切换 N个载波，切换失败率为 N*p ), T-eNB可以在 Pcell接纳成功， Scell 未成功时回复部分成功响应， 如本实施例中 Cell2-2 接纳成功， Celll-2 和 Cell4-2中只成功了 Celll-2, T-eNB按照 Pcell为 Cell2-2, Scell为 Celll-2配 置 Handover Command , 并预留相关资源， 按上述过程回复 Handover Command命令给 S-eNB。 此外还可以在相应的消息中指示部分失败信息， 如 本例中指示 Cell4-2接纳失败， 没有被配置在 Handover Command中。
S-eNB接收到 T-eNB (或者由 MME转发 )发来的 Handover Command, 通过空口的 RRC Connection Reconfiguration命令发送给 UE。 UE才艮据消息指 明的目标 Pcell Cell2-2 , 在 Cell2-2 上发起随机接入， 成功后发送 RRC Connection Reconfiguration Complete。 T-eNB接) 到该消息后， 和 LTE的后 续流程一致， 进行 S-eNB的资源释放。 根据本发明的实施例， 提供了一种多载波切换处理***。 图 3是根据本 发明实施例的第一种多载波切换处理***的结构框图， 如图 3所示， 该*** 包括源基站 2、 目标基站 4和用户设备 6 , 其中， 源基站 2包括： 第一确定模块 24 , 用于根据获取的支持载波聚合关系确 定目标主月艮务小区 Pcell和目标辅月艮务小区 Scell; 第一通知模块 26 , 连接至 第一确定模块 24 , 用于将第一确定模块 24确定的确定结果通知给目标 Pcell 和目标 Scell所属的目标基站； 第一接收模块 28 , 用于接收来自目标基站的 切换命令； 第一转发模块 20, 连接至第一接收模块 28 , 用于转发切换命令 给用户设备。 目标基站 4包括： 第四接收模块 40 , 连接至第一通知模块 26用于接收 来自第一通知模块 26的确定结果； 第一配置模块 42 , 连接至第四接收模块 40,用于配置目标 Pcell和目标 Scell以及对应的切换命令；第一发送模块 44 , 连接至第一配置模块 42和第一接收模块 28 , 用于将切换命令发送给源基站。 用户设备 6包括： 第五接收模块 60 , 连接至第一转发模块 20用于接收 来自第一转发模块 20的切换命令； 第一切换模块 62 , 连接至第五接收模块 60 , 用于根据切换命令完成切换过程。 在相关技术中， LTE-A多载波***中源基站无法确定哪个小区作为切换 目标小区进而导致无法实现切换， 通过该实施例， 由源基站确定目标 Pcell 和目标 Scell 并实现切换的过程， 源基站可以获知目标基站的哪几个小区之 间可以相互进行载波聚合， 做出切换判决时， 可以确切了解目标基站的多个 小区的负载以及资源信息， 因此， 源基站可以指定目标基站下的几个小区作 为 UE的切换目标小区， 进而实现了多载波***的切换。 优选地， 第一切换模块 62根据切换命令中指示的目标 Pcell进行随机接 入。 此后， 用户设备与目标 Pcell和目标 Scell进行数据传输。 优选地， 第一获取模块 22通过 OAM配置或者与 X2口的信息交互， 获 取支持载波聚合关系。 通过该优选实施例， 源基站可以通过预配置或自配置 的方式来获取支持载波聚合关系。 进一步地 , 第一通知模块 26在 X2切换过程中通过切换请求消息通知目 标基站； 第一发送模块 44在 X2切换过程中直接将切换命令发送给源基站。 通过该优选实施例， 可以实现多载波***的 X2切换过程。 进一步地， 第一通知模块 26在 S 1切换过程中通过切换请求消息经由移 动性管理实体通知目标基站； 第一发送模块 44在 S 1切换过程中经由移动性 管理实体将切换命令发送给源基站。 通过该优选实施例， 可以实现多载波系 统的 S 1切换过程。 实施例二 才艮据本发明的实施例， 提供了一种多载波切换处理方法。 图 4是才艮据本 发明实施例的第二种多载波切换处理方法的流程图， 如图 4所示， 包括如下 的步 4聚： 步骤 S402, 源基站确定目标 Pcell和待选择目标 Scell, 并通知目标 Pcell 和待选择目标 Scell所属的目标基站。 步骤 S404 , 目标基站配置目标 Pcell , 并根据无线资源管理 （ Radio Resource Manage, 简称为 RRM )算法和所述待选择目标 Scell的信息选择目 标 Scell, 以及配置目标 ScelL 步 4聚 S406 , 目标基占按, 目标 Pcell和目标 Scell S己置对应 ^切换命令， 并将切换命令发送给源基站。 步骤 S408, 源基站转发切换命令给用户设备， 用户设备根据切换命令完 成切换过程。 在相关技术中， LTE-A多载波***中源基站无法确定哪个小区作为切换 目标小区进而导致无法实现切换， 通过该实施例， 由源基站确定目标 Pcell, 目标基站确定目标 Scell , 进而实现了多载波***的切换。 优选地， 在步骤 S404 中， 目标基站才艮据无线资源管理算法、 本地的聚 合信息和待选择目标 Scell信息， 选择能与目标 Pcell进行载波聚合的小区作 为目标 Scell。 优选地， 在步骤 S408中， 用户设备根据切换命令中指示的目标 Pcell进 行随机接入。 此后， 用户设备与目标 Pcell和目标 Scell进行数据传输。 优选地， 在步骤 S402中， 源基站在 X2切换过程中通过切换请求消息通 知目标基站； 在步骤 S406中， 目标基站在 X2切换过程中直接将切换命令发 送给源基站。 通过该优选实施例， 可以实现多载波***的 X2切换过程。 优选地， 在步骤 S402中， 源基站在 S 1切换过程中通过切换请求消息经 由移动性管理实体通知目标基站； 在步骤 S406中， 目标基站在 S 1切换过程 中经由移动性管理实体将切换命令发送给源基站。 通过该优选实施例， 可以 实现多载波***的 S 1切换过程。 以下对该实施例的实现过程进行详细说明。 在该实施例中， 源基站与目 标基站的配置与实施例一相同， 在此不再赞述。 实施例二与实施例一的区别在于： 对于 S-eNB无法通过预配置或者自配 置的方式获取邻基站的 Aggregation Information信息， 只有基站本身只了解 自己的 Aggregation Information信息。所以切换步骤为：源基站决定目标 Pcell, 并连同其它可能的目标小区（可能的 Scell )通过 S 1/X2的切换过程中通知目 标基站， 目标基站按照源基站决定的 Pcell 准备资源， 并在传输过来的其它 可能的目标小区进行选择， 和 Pcell可以进行载波聚合， 并且合适的 Scell。 目标基站按最终的 Pcell和 Scell配置对应的切换命令。 源基站发送切换命令 给 UE , UE根据切换命令中指示的目标 Pcell进行随机接入， 完成切换。 由于 S-eNB不了解 T-eNB的 Aggregation Information后， 在 UE触发切 换时， 如 UE触发测量 4艮告 A3 事件， 上 4艮邻区 Cell2-2好于当前 Pcell 即 Celll-1。 S-eNB可以决定目标 Pcell是 Cell2-2,但是无法确定 Celll-2、 Cell3-2 和 Cell4-2中哪几个小区可以和 Cell2-2进行载波聚合。 S-eNB判决进行切换 后，如果进行的是 X2切换， 在 Handover Request消息中指明目标小区 Target Cell ID为 Cell2-2,在 LTE-A的场景下 T-eNB会将 Target Cell ID解释为 S-eNB 要求目标 Pcell为 Cell2-2, 并在 AS Security Information携带以 Cell2-2提供 入参生成的 KeNB*和其对应的 NCC ( Next hop Chaining Count )„ S-eNB还会 在该消息 RRC Context中携带的 Handover Preparation Information中指明可能 的目标 Scell为 Cell 1-2, Cell3-2和 Cell4-2。 如 UE在之前也上 4艮过 Cell 1-2, Cell3-2和 Cell4-2信号变好的测量报告， S-eNB可以根据 UE的测量报告来 选择可能的目标 Scell, 确保 T-eNB 可以从 UE能接收到的小区中选择目标 Scell„如果是 S 1切换，与实施例一类似的在 Handover Required消息的 Target ID中填写 T-eNB的 eNB ID, 并在 Source to Target Transparent Container中携 带 Source eNB to Target eNB Transparent Container,后者 Target Cell ID和 RRC Container的内容和上述 X2的 Handover Request中的 Target Cell ID和 RRC Context的内容相同。 MME会才艮据 Target ID将消息通过 Handover Request 将 Source eNB to Target eNB Transparent Container碑舍发到 T-eNB。 当 T-eNB通过 X2的 Handover Request或者 S 1的 Handover Request接收 J S-eNB ό 切换 己置， 4旨定目标 Pcell为 Cell2-2, 可 ^/目标 Scell有 3个， 分别为 Cell 1-2、 Cell3-2和 Cell4-2。 T-eNB才艮据自身 Aggregation Information 信息， 查找可以和 S-eNB要求的 Pcell Cell2-2进行载波聚合的小区。 本例中 Cell 1-2和 Cell4-2可以和 Cell2-2进行载波聚合。 T-eNB按 S-eNB指定的 Pcell Cell2-2和自己选定的 Scell Cell 1-2和 Cell4-2为载波配置进行对应的资源准 备， 并按此配置切换命令 Uu 接口的 HandoverCommand, 切换命令中指明 UE切换， 并且目标 Pcell为 Cell2-2, 目标 Scell为 Cell 1-2和 Cell4-2, 其它 还有这几个载波的相关配置信息。 如果是 X2 切换， T-eNB 通过 Handover Request Acknowledge 中的信元 Target eNB To Source eNB Transparent Container携带 Handover Command。 如果是 S I切换， T-eNB发送 Handover Request Acknowledge通过 Target to Source Transparent Container携带上述信 元 Target eNB To Source eNB Transparent Container给 MME, 由 MME通过 Handover Command转发给 S-eNB„ 如果 T-eNB发生接纳失败， 如 Pcell的本 地资源受限，需要回复失败响应消息。在 X2切换时，回复 Handover Preparation Failure 给 S-eNB , S I 切换时， 回复 Handover Failure, MME 收到后转发 Handover Preparation Failure给 S-eNB。
S-eNB接收到 T-eNB (或者由 MME转发 )发来的 Handover Command, 通过空口的 RRC Connection Reconfiguration命令发送给 UE。 UE才艮据消息指 明的目标 Pcell Cell2-2 , 在 Cell2-2 上发起随机接入， 成功后发送 RRC Connection Reconfiguration Complete。 T-eNB接) 到该消息后， 和 LTE的后 续流程一致， 进行 S-eNB的资源释放。 根据本发明的实施例， 提供了一种多载波切换处理***。 图 5是根据本 发明实施例的第二种多载波切换处理***的结构框图， 如图 5所示， 该*** 包括源基站 2、 目标基站 4和用户设备 6 , 其中， 源基站 2包括：第二确定模块 12 ,用于确定目标 Pcell和待选择目标 Scell; 第二通知模块 14 , 连接至第二确定模块 12 , 用于将第二确定模块 12确定的 确定结果通知给目标 Pcell和待选择目标 S cell所属的目标基站； 第二接收模 块 16 , 用于接收来自目标基站的切换命令； 第二转发模块 18 , 连接至第二 接收模块 16 , 用于转发切换命令给用户设备。 目标基站 4 包括： 第六接收模块 30 , 连接至第二通知模块 14 , 用于接 收来自第二通知模块 14的确定结果； 第二选择模块 32 , 连接至第六接收模 块 30,用于根据无线资源管理算法和待选择目标 Scell的信息选择目标 Scell; 第二配置模块 34 , 连接至第六接收模块 30和第二选择模块 32 , 用于配置目 标 Pcell和目标 Scell以及对应的切换命令； 第二发送模块 36 , 连接至第二配 置模块 34 , 用于将切换命令发送给源基站。 用户设备 6 包括： 第七接收模块 50 , 连接至第二转发模块 18 , 用于接 收来自第二转发模块 18的切换命令； 第二切换模块 52 , 连接至第七接收模 块 50 , 用于 居切换命令完成切换过程。 在相关技术中， LTE-A多载波***中源基站无法确定哪个小区作为切换 目标小区进而导致无法实现切换， 通过该实施例， 由源基站确定目标 Pcell, 目标基站确定目标 Scell , 进而实现了多载波***的切换。 优选地， 第二切换模块 52根据切换命令中指示的目标 Pcell进行随机接 入。 此后， 用户设备与目标 Pcell和目标 Scell进行数据传输。 进一步地， 第二通知模块 14在 X2切换过程中通过切换请求消息通知目 标基站； 第二发送模块 36在 X2切换过程中直接将切换命令发送给源基站。 通过该优选实施例， 可以实现多载波***的 X2切换过程。 进一步地， 第二通知模块 14在 S 1切换过程中通过切换请求消息经由移 动性管理实体通知目标基站； 第二发送模块 36在 S 1切换过程中经由移动性 管理实体将切换命令发送给源基站。 通过该优选实施例， 可以实现多载波系 统的 S 1切换过程。 实施例三 才艮据本发明的实施例， 提供了一种多载波切换处理方法。 图 6是才艮据本 发明实施例的第三种多载波切换处理方法的流程图， 如图 6所示， 包括如下 的步 4聚： 步骤 S602, 源基站确定待选择目标 Pcell和待选择目标 Scell, 并通知待 选择目标 Pcell和待选择目标 Scell所属的目标基站。 步骤 S604, 目标基站根据待选择目标 Pcell和待选择目标 Scell的信息选 择目标 Pcell和目标 Scell。 步骤 S606 , 目标基站配置目标 Pcell和目标 Scell以及对应的切换命令， 并将切换命令发送给源基站。 步骤 S608, 源基站转发切换命令给用户设备， 用户设备根据切换命令完 成切换过程。 在相关技术中， LTE-A多载波***中源基站无法确定哪个小区作为切换 目标小区进而导致无法实现切换， 通过该实施例， 由目标基站确定目标 Pcell 和目标 Scell, 进而实现了多载波***的切换。 优选地， 在步骤 S604 中， 目标基站才艮据无线资源管理算法、 本地的资 源、 负载信息和本地的聚合信息以及待选择目标 Pcell和 Scell信息， 选择能 进行载波聚合的目标 Pcell和目标 Scell。 优选地， 在步骤 S608中， 用户设备根据切换命令中指示的目标 Pcell进 行随机接入。 此后， 用户设备与目标 Pcell和目标 Scell进行数据传输。 优选地， 在步骤 S602中， 源基站在 X2切换过程中通过切换请求消息通 知目标基站； 在步骤 S606中， 目标基站在 X2切换过程中直接将切换命令发 送给源基站。 通过该优选实施例， 可以实现多载波***的 X2切换过程。 优选地， 在步骤 S602中， 源基站在 S 1切换过程中通过切换请求消息经 由移动性管理实体通知目标基站； 在步骤 S606中， 目标基站在 S 1切换过程 中经由移动性管理实体将切换命令发送给源基站。 通过该优选实施例， 可以 实现多载波***的 S 1切换过程。 以下对该实施例的实现过程进行详细说明。 在该实施例中， 源基站与目 标基站的配置与实施例一相同， 在此不再赞述。 实施例三与实施例二类似，对于 S-eNB无法通过预配置或者自配置的方 式获取邻基站的 Aggregation Information信息， 只有基站本身只了解自己的 Aggregation Information信息。 与实施例二的不同在于： 目标基站除了自己选 择目标辅服务小区外， 也可以根据自身的资源和负载情况修改源基站要求的 主服务小区。 切换步骤为： 源基站决定可能目标 Pcell, 并连同其它可能的目 标小区 （可能的 Scell )通过 S 1/X2的切换过程中通知目标基站， 目标基站按 照源基站传输的可能的 Pcell和 Scell信息， 和本地的资源以及负载信息， 选 择合适的 Pcell和 Scell。 目标基站按最终的 Pcell和 Scell配置对应的切换命 令。 源基站发送切换命令给 UE, UE根据切换命令中指示的目标 Pcell进行 随机接入， 完成切换。 由于 S-eNB由于不了解 T-eNB的 Aggregation Information后， 在 UE触 发切换时， 如 UE触发测量 4艮告 A3事件， 上 4艮邻区 Cell2-2好于当前 Pcell 即 Celll-1。 S-eNB可以决定目标 Pcell是 Cell2-2, 但是无法确定 Celll-2、 Cell3-2和 Cell4-2中哪几个小区可以和 Cell2-2进行载波聚合。 S-eNB判决进 行切换后， 如果进行的是 X2切换， 在 Handover Request消息中指明目标小 区 Target Cell ID为 Cell2-2, 在 LTE-A的场景下 T-eNB会将此解释为 S-eNB 要求目标 Pcell为 Cell2-2, 并在 AS Security Information携带以 Cell2-2提供 入参生成的 KeNB*和其对应的 NCC ( Next hop Chaining Count )„ S-eNB还会 在该消息 RRC Context中携带的 Handover Preparation Information中指明可能 的目标 Scell为 Cell 1-2, Cell3-2和 Cell4-2, 由于这些小区也肯能够被 T-eNB 选择为 Pcell, 所以在 RRC Context中携带以 Cell 1-2, Cell3-2和 Cell4-2提供 入参生成的 KeNB*和其对应的 NCC ( Next hop Chaining Count )„ 如 UE在之 前也上 4艮过 Celll-2, Cell3-2和 Cell4-2信号变好的测量报告， S-eNB可以根 据 UE的测量报告来选择可能的目标 Scell , 确保 T-eNB可以从 UE能接收到 的小区中选择目标 Scell。 如果是 S 1 切换， 于方法 1 类似的在 Handover Required消息的 Target ID中填写 T-eNB的 eNB ID, 并在 Source to Target Transparent Container中携带 Source eNB to Target eNB Transparent Container, 后者 Target Cell ID和 RRC Container的内容和上述 X2的 Handover Request 中的 Target Cell ID和 RRC Context的内容相同。 MME会才艮据 Target ID将消 息通过 Handover Request将 Source eNB to Target eNB Transparent Container 转发到 T-eNB。 当 T-eNB通过 X2的 Handover Request或者 S 1的 Handover Request接收 J S-eNB ό 切换 己置， 4旨定目标 Pcell为 Cell2-2, 可 ^/目标 Scell有 3个， 分别为 Cell 1-2、 Cell3-2和 Cell4-2。 T-eNB根据自身资源和负载以及各个小 区对应的 Aggregation Information信息， 可以按照目标基站的指定 Pcell进行 配置， 这种情况和实施例二的后续过程一致， 或者可以决定 4爹改 S-eNB指定 的 Pcell, 新的 PCell为 Celll-2, 并且只配置一个 Scell为 Cell4-2。 T-eNB最 终选定的 Pcell Celll-2和 Scell Cell4-2为载波配置进行对应的资源准备， 并 按此配置切换命令 Uu接口的 Handover Command,切换命令中指明 UE切换， 并且目标 Pcell为 Celll-2, 目标 Scell为 Cell4-2, 其它还有这两个载波的相 关配置信息。 如果是 X2切换， T-eNB通过 Handover Request Acknowledge 中的信元 Target eNB To Source eNB Transparent Container携带 Handover Command。 如果是 S I切换， T-eNB发送 Handover Request Acknowledge通过 Target to Source Transparent Container携带上述信元 Target eNB To Source eNB Transparent Container给 MME, 由 MME通过 Handover Command转发 给 S-eNB。如果 T-eNB发生接纳失败， 如因为资源受限无法找到合适的 Pcell 或者 Scell,需要回复失败响应消息。在 X2切换时，回复 Handover Preparation Failure 给 S-eNB , S I 切换时， 回复 Handover Failure, MME 收到后转发 Handover Preparation Failure给 S-eNB。
S-eNB接收到 T-eNB (或者由 MME转发 )发来的 Uu接口的 Handover Command, 通过空口的 RRC Connection Reconfiguration命令发送给 UE。 UE 才艮据消息指明的目标 Pcell Celll-2, 在 Celll-2上发起随机接入， 成功后发送 RRC Connection Reconfiguration Complete„ T-eNB ) 到该消息后， 和 LTE的 后续流程一致， 进行 S-eNB的资源释放。 根据本发明的实施例， 提供了一种多载波切换处理***。 图 7是根据本 发明实施例的第三种多载波切换处理***的结构 图， 如图 7所示， 该*** 包括源基站 2、 目标基站 4和用户设备 6 , 其中， 源基站 2包括： 第三确定模块 72 , 用于确定待选择目标 Pcell和待选择 目标 Scell; 第三通知模块 74 , 连接至第三确定模块 72 , 用于将第三确定模 块确定的确定结果通知给目标 Pcell和待选择目标 Scell所属的目标基站； 第 三接收模块 76 , 用于接收来自目标基站的切换命令； 第三转发模块 78 , 连 接至第三接收模块 76 , 用于转发切换命令给用户设备。 目标基站 4 包括： 第八接收模块 82 , 连接至第三通知模块 74 , 用于接 收来自第三通知模块 74的确定结果； 第三选择模块 84 , 连接至第八接收模 块 82 , 用于按照本地的资源、 负载信息以及待选择目标 Pcell和待选择目标 Scell的信息选择目标 Pcell和目标 Scell; 第三配置模块 86 , 连接至第三选择 模块 84 , 用于配置目标 Pcell和目标 Scell以及对应的切换命令； 第三发送模 块 88 , 连接至第三配置模块 86 , 用于将切换命令发送给源基站。 用户设备 6 包括： 第九接收模块 92 , 连接至第三转发模块 78 , 用于接 收来自第三转发模块 78的切换命令； 第三切换模块 94 , 连接至第九接收模 块 92 , 用于 居切换命令完成切换过程。 在相关技术中， LTE-A多载波***中源基站无法确定哪个小区作为切换 目标小区进而导致无法实现切换， 通过该实施例， 由目标基站确定目标 Pcell 和目标 Scell, 进而实现了多载波***的切换。 优选地， 第三选择模块 84 居无线资源管理算法、 本地的资源、 负载 信息和本地的聚合信息以及待选择目标 pcell和 Scell信息， 选择能进行载波 聚合的目标 Pcell和目标 Scell。 优选地， 第三切换模块 94根据切换命令中指示的目标 Pcell进行随机接 入。 此后， 用户设备与目标 Pcell和目标 Scell进行数据传输。 进一步地， 第三通知模块 74在 X2切换过程中通过切换请求消息通知目 标基站； 第三发送模块 88在 X2切换过程中直接将切换命令发送给源基站。 通过该优选实施例， 可以实现多载波***的 X2切换过程。 进一步地， 第三通知模块 74在 S 1切换过程中通过切换请求消息经由移 动性管理实体通知目标基站； 第三发送模块 88在 S 1切换过程中经由移动性 管理实体将切换命令发送给源基站。 通过该优选实施例， 可以实现多载波系 统的 S 1切换过程。 综上所述， 通过本发明的上述实施例， 由源基站确定目标 Pcell 和目标 Scell, 或由源基站确定目标 Pcell 以及目标基站确定目标 Scell, 或由目标基 站确定目标 Pcell和目标 Scell, 解决了 LTE-A多载波***中源基站无法确定 哪个小区作为切换目标小区导致无法实现切换的问题， 进而实现了多载波系 统的切换。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布 在多个计算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程 序代码来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 并 且在某些情况下， 可以以不同于此处的顺序执行所示出或描述的步骤， 或者 将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软件 结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本 领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护 范围之内。

Claims

权 利 要 求 书
1. 一种多载波切换处理方法， 其特征在于包括：
源基站根据获取的邻基站下小区之间的支持载波聚合关系确定目标 主月艮务小区 Pcell和目标辅月艮务小区 Scell, 并通知所述目标 Pcell和所述 目标 Scell所属的目标基站；
所述目标基站配置所述目标 Pcell和所述目标 Scell以及对应的切换 命令， 并将所述切换命令发送给所述源基站；
所述源基站转发切换命令给用户设备， 所述用户设备根据所述切换 命令完成切换过程。
2. 根据权利要求 1所述的方法， 其特征在于， 所述源基站获取所述支持载 波聚合关系包括：
所述源基站通过运行、管理和维护 OAM配置或者与 X2口的信息交 互， 获取所述支持载波聚合关系。
3. 居权利要求 1所述的方法， 其特征在于， 所述用户设备 居所述切换 命令完成切换过程包括：
所述用户设备根据所述切换命令中指示的所述目标 Pcell 进行随机 接入。
4. 根据权利要求 1至 3中任一项所述的方法， 其特征在于，
所述源基站通知所述目标基站包括： 所述源基站在 X2切换过程中 通过切换请求消息通知所述目标基站；
所述目标基站将所述切换命令发送给所述源基站包括： 所述目标基 站在 X2切换过程中直接将所述切换命令发送给所述源基站。
5. 根据权利要求 1至 3中任一项所述的方法， 其特征在于，
所述源基站通知所述目标基站包括：所述源基站在 S 1切换过程中通 过切换请求消息经由移动性管理实体通知所述目标基站； 所述目标基站将所述切换命令发送给所述源基站包括： 所述目标基 站在 S 1 切换过程中经由所述移动性管理实体将所述切换命令发送给所 述源基站。
6. —种多载波切换处理方法， 其特征在于包括：
源基站确定目标 Pcell和待选择目标 Scell, 并通知所述目标 Pcell和 所述待选择目标 Scell所属的目标基站；
所述目标基站配置所述目标 Pcell, 并 居所述待选择目标 Scell的 信息选择目标 Scell, 以及配置所述目标 Scell;
所述目标基站按照所述目标 Pcell和所述目标 Scell配置对应的切换 命令， 并将所述切换命令发送给所述源基站；
所述源基站转发所述切换命令给用户设备， 所述用户设备根据所述 切换命令完成切换过程。
7. 根据权利要求 6所述的方法， 其特征在于， 所述目标基站根据无线资源 管理算法和所述待选择目标 Scell的信息选择目标 Scell包括：
所述目标基站 居无线资源管理算法、 本地的聚合信息和所述待选 择目标 Scell信息， 选择能与所述目标 Pcell进行载波聚合的小区作为所 述目标 Scell。
8. 居权利要求 6所述的方法， 其特征在于， 所述用户设备 -据所述切换 命令完成切换过程包括：
所述用户设备根据所述切换命令中指示的所述目标 Pcell 进行随机 接入。
9. 根据权利要求 6至 8中任一项所述的方法， 其特征在于，
所述源基站通知所述目标基站包括： 所述源基站在 X2切换过程中 通过切换请求消息通知所述目标基站；
所述目标基站将所述切换命令发送给所述源基站包括： 所述目标基 站在 X2切换过程中直接将所述切换命令发送给所述源基站。
10. 根据权利要求 6至 8中任一项所述的方法， 其特征在于，
所述源基站通知所述目标基站包括：所述源基站在 S 1切换过程中通 过切换请求消息经由移动性管理实体通知所述目标基站； 所述目标基站将所述切换命令发送给所述源基站包括： 所述目标基 站在 S 1 切换过程中经由所述移动性管理实体将所述切换命令发送给所 述源基站。
11. 一种多载波切换处理方法， 其特征在于包括：
源基站确定待选择目标 Pcell和待选择目标 Scell, 并通知所述待选 择目标 Pcell和所述待选择目标 Scell所属的目标基站；
所述目标基站才艮据所述待选择目标 Pcell和所述待选择目标 Scell的 信息选择目标 Pcell和目标 Scell;
所述目标基站配置所述目标 Pcell和所述目标 Scell以及对应的切换 命令， 并将所述切换命令发送给所述源基站；
所述源基站转发所述切换命令给用户设备， 所述用户设备根据所述 切换命令完成切换过程。
12. 居权利要求 11所述的方法， 其特征在于， 所述目标基站 居所述待选 择目标 Pcell和 Scell的信息选择目标 Pcell和目标 Scell包括：
所述目标基站 居无线资源管理算法、 本地的资源、 负载信息和本 地的聚合信息以及所述待选择目标 Pcell和 Scell信息， 选择能进行载波 聚合的目标 Pcell和目标 Scell。
13. 居权利要求 11所述的方法， 其特征在于， 所述用户设备 居所述切换 命令完成切换过程包括：
所述用户设备根据所述切换命令中指示的所述目标 Pcell 进行随机 接入。
14. 根据权利要求 11至 13中任一项所述的方法， 其特征在于，
所述源基站通知所述目标基站包括： 所述源基站在 X2切换过程中 通过切换请求消息通知所述目标基站；
所述目标基站将所述切换命令发送给所述源基站包括： 所述目标基 站在 X2切换过程中直接将所述切换命令发送给所述源基站。
15. 根据权利要求 11至 13中任一项所述的方法， 其特征在于，
所述源基站通知所述目标基站包括：所述源基站在 S 1切换过程中通 过切换请求消息经由移动性管理实体通知所述目标基站； 所述目标基站将所述切换命令发送给所述源基站包括： 所述目标基 站在 S 1 切换过程中经由所述移动性管理实体将所述切换命令发送给所 述源基站。
16. —种多载波切换处理***， 包括源基站、 目标基站和用户设备， 其特征 在于，
所述源基站包括：
第一确定模块， 用于根据获取的邻基站下小区之间的支持载波聚合 关系确定目标主月艮务小区 Pcell和目标辅月艮务小区 Scell;
第一通知模块， 用于将所述第一确定模块确定的确定结果通知给目 标 Pcell和目标 Scell所属的所述目标基站；
第一接收模块， 用于接收来自所述目标基站的切换命令； 第一转发模块， 用于转发所述切换命令给用户设备；
所述目标基站包括：
第四接收模块， 用于接收来自所述第一通知模块的所述确定结果； 第一配置模块， 用于配置所述目标 Pcell和所述目标 Scell以及对应 的切换命令；
第一发送模块， 用于将所述切换命令发送给所述源基站； 所述用户设备包括：
第五接收模块， 用于接收来自所述第一转发模块的所述切换命令； 第一切换模块， 用于根据所述切换命令完成切换过程。
17. —种多载波切换处理***， 包括源基站、 目标基站和用户设备， 其特征 在于，
所述源基站包括：
第二确定模块， 用于确定目标 Pcell和待选择目标 Scell; 第二通知模块， 用于将所述确定模块确定的确定结果通知给所述目 标 Pcell和所述待选择目标 Scell所属的目标基站；
第二接收模块， 用于接收来自所述目标基站的切换命令； 第二转发模块， 用于转发所述切换命令给用户设备； 所述目标基站包括：
第六接收模块， 用于接收来自所述第二通知模块的所述确定结果； 第二选择模块， 用于根据无线资源管理算法和所述待选择目标 Scell 的信息选择目标 Scell;
第二配置模块， 用于配置所述目标 Pcell和所述目标 Scell以及对应 的切换命令；
第二发送模块， 用于将所述切换命令发送给所述源基站；
所述用户设备包括：
第七接收模块， 用于接收来自所述第二转发模块的所述切换命令； 第二切换模块， 用于根据所述切换命令完成切换过程。 一种多载波切换处理***， 包括源基站、 目标基站和用户设备， 其特征 在于，
所述源基站包括：
第三确定模块， 用于确定待选择目标 Pcell和待选择目标 Scell; 第三通知模块， 用于将所述第三确定模块确定的确定结果通知给所 述目标 Pcell和所述待选择目标 Scell所属的目标基站；
第三接收模块， 用于接收来自所述目标基站的切换命令；
第三转发模块， 用于转发所述切换命令给用户设备；
所述目标基站包括：
第八接收模块， 用于接收来自所述第三通知模块的所述确定结果； 第三选择模块，用于根据无线管理算法和所述待选择目标 Pcell和所 述待选择目标 Scell的信息选择目标 Pcell和目标 Scell;
第三配置模块， 用于配置所述目标 Pcell和所述目标 Scell以及对应 的切换命令；
第三发送模块， 用于将所述切换命令发送给所述源基站；
所述用户设备包括：
第九接收模块， 用于接收来自所述第三转发模块的所述切换命令； 第三切换模块， 用于根据所述切换命令完成切换过程。
PCT/CN2010/077628 2010-04-30 2010-10-09 多载波切换处理方法及*** WO2011134239A1 (zh)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US13/259,716 US8792895B2 (en) 2010-04-30 2010-10-09 Processing method and system for multi-carrier handover
JP2013506445A JP5637647B2 (ja) 2010-04-30 2010-10-09 多重搬送波切り替え処理方法及びシステム
EP10850570.2A EP2448350B1 (en) 2010-04-30 2010-10-09 Methods and apparatuses for multi-carrier handover processing
BR112012021893-0A BR112012021893B1 (pt) 2010-04-30 2010-10-09 Método e sistema de processamento para entrega de multi-transportadores

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010174858.1 2010-04-30
CN201010174858.1A CN102238666B (zh) 2010-04-30 2010-04-30 多载波切换处理方法及***

Publications (1)

Publication Number Publication Date
WO2011134239A1 true WO2011134239A1 (zh) 2011-11-03

Family

ID=44860809

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/077628 WO2011134239A1 (zh) 2010-04-30 2010-10-09 多载波切换处理方法及***

Country Status (6)

Country Link
US (1) US8792895B2 (zh)
EP (1) EP2448350B1 (zh)
JP (1) JP5637647B2 (zh)
CN (1) CN102238666B (zh)
BR (1) BR112012021893B1 (zh)
WO (1) WO2011134239A1 (zh)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0363885A (ja) * 1989-08-02 1991-03-19 Nec Corp フィルタリング方式
US20130039338A1 (en) * 2011-08-12 2013-02-14 Research In Motion Limited Releasing Time Domain Measurement Restrictions
WO2014015474A1 (en) * 2012-07-24 2014-01-30 Empire Technology Development Llc Cell switching strategy for an lte-advanced system based on carrier aggregation technology
CN104426643A (zh) * 2013-09-05 2015-03-18 中兴通讯股份有限公司 一种业务抢占方法、装置和基站
JP2017011722A (ja) * 2012-07-27 2017-01-12 京セラ株式会社 基地局
US11245508B2 (en) * 2012-06-12 2022-02-08 Huawei Technologies Co., Ltd. Carrier resource configuration method, uplink information transmission method, base station and user equipment

Families Citing this family (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101742484B (zh) * 2008-11-07 2013-01-16 中兴通讯股份有限公司 小区物理地址的分配方法和基站
JP5337785B2 (ja) * 2010-12-03 2013-11-06 株式会社日立製作所 セルラシステムおよびハンドオフ品質改善方法
CN102892122A (zh) * 2011-07-19 2013-01-23 北京三星通信技术研究有限公司 多载波配置下降低干扰的方法
US8395985B2 (en) 2011-07-25 2013-03-12 Ofinno Technologies, Llc Time alignment in multicarrier OFDM network
CN103220737B (zh) * 2012-01-20 2016-01-20 普天信息技术研究院有限公司 一种支持载波聚合的用户设备切换方法
US9237537B2 (en) 2012-01-25 2016-01-12 Ofinno Technologies, Llc Random access process in a multicarrier base station and wireless device
US9161322B2 (en) 2012-01-25 2015-10-13 Ofinno Technologies, Llc Configuring base station and wireless device carrier groups
US8897248B2 (en) 2012-01-25 2014-11-25 Ofinno Technologies, Llc Multicarrier signal transmission in wireless communications
US8964590B2 (en) 2012-04-01 2015-02-24 Ofinno Technologies, Llc Random access mechanism for a wireless device and base station
US11943813B2 (en) 2012-04-01 2024-03-26 Comcast Cable Communications, Llc Cell grouping for wireless communications
EP2839705B1 (en) 2012-04-16 2017-09-06 Comcast Cable Communications, LLC Cell group configuration for uplink transmission in a multicarrier wireless device and base station with timing advance groups
US11825419B2 (en) 2012-04-16 2023-11-21 Comcast Cable Communications, Llc Cell timing in a wireless device and base station
US9210664B2 (en) 2012-04-17 2015-12-08 Ofinno Technologies. LLC Preamble transmission in a wireless device
US8989128B2 (en) 2012-04-20 2015-03-24 Ofinno Technologies, Llc Cell timing in a wireless device and base station
US11252679B2 (en) 2012-04-16 2022-02-15 Comcast Cable Communications, Llc Signal transmission power adjustment in a wireless device
US8964593B2 (en) 2012-04-16 2015-02-24 Ofinno Technologies, Llc Wireless device transmission power
US11582704B2 (en) 2012-04-16 2023-02-14 Comcast Cable Communications, Llc Signal transmission power adjustment in a wireless device
CN103391627B (zh) * 2012-05-07 2018-01-02 上海无线通信研究中心 混合网中基于载波的下行干扰消除方法
CN103458457B (zh) * 2012-06-04 2016-11-09 电信科学技术研究院 一种上报功率余量的方法、***和设备
US9084228B2 (en) 2012-06-20 2015-07-14 Ofinno Technologies, Llc Automobile communication device
US9113387B2 (en) * 2012-06-20 2015-08-18 Ofinno Technologies, Llc Handover signalling in wireless networks
US11882560B2 (en) 2012-06-18 2024-01-23 Comcast Cable Communications, Llc Carrier grouping in multicarrier wireless networks
US9107206B2 (en) 2012-06-18 2015-08-11 Ofinne Technologies, LLC Carrier grouping in multicarrier wireless networks
US11622372B2 (en) 2012-06-18 2023-04-04 Comcast Cable Communications, Llc Communication device
CN107197490B (zh) 2012-06-28 2022-08-19 华为技术有限公司 辅助主小区的调整方法以及基站
CN103582126B (zh) * 2012-07-31 2018-11-16 北京三星通信技术研究有限公司 在跨eNB载波聚合***中配置和激活SCell的方法及终端
CN103686673B (zh) 2012-09-21 2019-06-04 北京三星通信技术研究有限公司 一种支持指示失败事件给源接入***的方法
JPWO2014049971A1 (ja) * 2012-09-28 2016-08-22 三菱電機株式会社 移動体通信システム
EP2993939B1 (en) * 2013-05-30 2018-10-03 Huawei Technologies Co., Ltd. Cell handover method and base station for user equipment (ue) handover in carrier aggregation mode
CN104219723B (zh) * 2013-05-30 2019-08-27 南京中兴软件有限责任公司 一种基于载波聚合技术实现软切换的方法及基站、终端
EP2999267B1 (en) * 2013-06-27 2020-04-22 Huawei Technologies Co., Ltd. Method for controlling handover of user equipment, base station, user equipment, and system
WO2015017968A1 (zh) * 2013-08-05 2015-02-12 富士通株式会社 网络配置方法、装置和***
CN104427566B (zh) * 2013-08-30 2019-09-10 南京中兴新软件有限责任公司 一种切换方法及载波聚合***
US9942820B2 (en) 2013-12-02 2018-04-10 Apple Inc. Systems and methods for cross-cell carrier aggregation for coverage balance improvement
EP3105973B1 (en) * 2014-02-10 2018-07-25 Telefonaktiebolaget LM Ericsson (publ) Interworking between networks operating according to different radio access technologies
WO2015137857A1 (en) * 2014-03-14 2015-09-17 Telefonaktiebolaget L M Ericsson (Publ) Network node, radio network node, and methods for selecting a second secondary cell of a wireless device
US9479989B1 (en) * 2014-09-25 2016-10-25 Sprint Spectrum L.P. Controlling handover based on carrier-aggregation policies
CN104581810B (zh) * 2014-12-12 2018-10-16 北京北方烽火科技有限公司 一种基于载波聚合的切换方法、板间聚合切换方法和装置
WO2016119109A1 (zh) * 2015-01-26 2016-08-04 华为技术有限公司 一种切换装置及方法
EP3059891B1 (en) * 2015-02-17 2020-06-10 Samsung Electronics Co., Ltd Method and apparatus for communication using a plurality of cells in a wireless communication system
WO2017063778A1 (en) * 2015-10-16 2017-04-20 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for cell frequency change procedure signal timing selection
CN106714246A (zh) * 2015-11-12 2017-05-24 中兴通讯股份有限公司 一种基站及小区切换方法和装置
US10743232B1 (en) 2016-11-15 2020-08-11 Sprint Spectrum L.P. Controlling handover based on carrier-aggregation policies and UE capabilities
TWI627871B (zh) * 2017-09-05 2018-06-21 財團法人工業技術研究院 網路通訊系統的控制方法與邊緣運算裝置
CN110419242B (zh) * 2019-06-14 2022-04-08 小米通讯技术有限公司 聚合连接建立方法、装置及存储介质
WO2023113662A1 (en) * 2021-12-15 2023-06-22 Telefonaktiebolaget Lm Ericsson (Publ) Methods and network nodes for handling handover of a user equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101616425A (zh) * 2008-06-23 2009-12-30 华为技术有限公司 多频点***中获得配对小区信息的方法及装置
CN101674586A (zh) * 2009-10-13 2010-03-17 中兴通讯股份有限公司 一种载波聚合中的测量处理方法及***
CN101790212A (zh) * 2009-01-23 2010-07-28 华为技术有限公司 选择目标小区的方法及网络节点

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1909723A (zh) * 2005-08-03 2007-02-07 华为技术有限公司 无线通信***中广播邻小区***信息的方法和装置
CN101622830B (zh) * 2007-03-22 2014-08-13 富士通株式会社 基站、移动站、通信***及其重排方法
WO2010027176A2 (en) * 2008-09-05 2010-03-11 Electronics And Telecommunications Research Institute Terminal and method for handover thereof
CN102396263A (zh) * 2009-02-13 2012-03-28 三星电子株式会社 包括毫微微小区的无线通信***中的切换方法和装置
EP3661304A1 (en) * 2009-06-19 2020-06-03 Mitsubishi Electric Corporation Mobile communication system
WO2011122045A1 (ja) * 2010-03-31 2011-10-06 パナソニック株式会社 無線通信基地局、無線通信装置及び無線通信システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101616425A (zh) * 2008-06-23 2009-12-30 华为技术有限公司 多频点***中获得配对小区信息的方法及装置
CN101790212A (zh) * 2009-01-23 2010-07-28 华为技术有限公司 选择目标小区的方法及网络节点
CN101674586A (zh) * 2009-10-13 2010-03-17 中兴通讯股份有限公司 一种载波聚合中的测量处理方法及***

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0363885A (ja) * 1989-08-02 1991-03-19 Nec Corp フィルタリング方式
US20130039338A1 (en) * 2011-08-12 2013-02-14 Research In Motion Limited Releasing Time Domain Measurement Restrictions
US8811341B2 (en) * 2011-08-12 2014-08-19 Blackberry Limited Releasing time domain measurement restrictions
US11245508B2 (en) * 2012-06-12 2022-02-08 Huawei Technologies Co., Ltd. Carrier resource configuration method, uplink information transmission method, base station and user equipment
WO2014015474A1 (en) * 2012-07-24 2014-01-30 Empire Technology Development Llc Cell switching strategy for an lte-advanced system based on carrier aggregation technology
US9282498B2 (en) 2012-07-24 2016-03-08 Empire Technology Development Llc Cell switching strategy for an LTE-advanced system based on carrier aggregation technology
JP2017011722A (ja) * 2012-07-27 2017-01-12 京セラ株式会社 基地局
CN104426643A (zh) * 2013-09-05 2015-03-18 中兴通讯股份有限公司 一种业务抢占方法、装置和基站
JP2016531523A (ja) * 2013-09-05 2016-10-06 ゼットティーイー コーポレイション サービス先取り方法、装置および基地局
CN104426643B (zh) * 2013-09-05 2019-03-29 中兴通讯股份有限公司 一种业务抢占方法、装置和基站

Also Published As

Publication number Publication date
US8792895B2 (en) 2014-07-29
CN102238666B (zh) 2015-10-21
BR112012021893A2 (pt) 2016-05-24
JP2013529000A (ja) 2013-07-11
US20120302245A1 (en) 2012-11-29
EP2448350A1 (en) 2012-05-02
BR112012021893B1 (pt) 2021-06-29
CN102238666A (zh) 2011-11-09
JP5637647B2 (ja) 2014-12-10
EP2448350B1 (en) 2016-11-23
EP2448350A4 (en) 2013-11-06

Similar Documents

Publication Publication Date Title
WO2011134239A1 (zh) 多载波切换处理方法及***
US11917463B2 (en) Cell handover with minimum mobility interruption
JP6920443B2 (ja) 目標セルアクセス方法及び装置
US11051219B2 (en) Method and apparatus for controlling mobility for cell having small cell service area in mobile communication system
US20210136850A1 (en) Establishing simultaneous radio connection between a user equipment and two enodebs
CN105103598B (zh) 操作无线接入网基站的方法和相关网络节点
USRE47613E1 (en) System and method for primary point handovers
JP2013529000A5 (zh)
US10206148B2 (en) Preserving core network interfaces after selective handovers in a wireless network
US10085188B2 (en) Handover request indicating split of a radio bearer between cells
US11412563B2 (en) Multi-connectivity communication method and device
CN102123460B (zh) 集群移动通信***中实现组呼业务切换的方法
US9408195B2 (en) Method, system and device for cell management
WO2014177090A1 (zh) 一种切换方法、主控基站及受控基站
WO2011157072A1 (zh) 接入网节点间实现直接接口的方法及***
WO2014180367A1 (zh) 无线连接方法、设备及计算机存储介质
WO2017166300A1 (zh) 一种无线资源管理方法和装置
WO2012019553A1 (zh) 接口连通性信息的发送与接收方法、设备和***
CN104685952A (zh) 在无线通信***中基于延迟容忍信息处理操作的方法和支持该方法的设备
WO2013010393A1 (zh) 一种回传链路中断时中继节点管理用户设备的方法和***
WO2013004085A1 (zh) 一种多载波***中的接入控制方法及基站
WO2014117694A1 (zh) 一种建立x2接口的方法和基站以及信息处理方法和网关
WO2012003629A1 (zh) 基站间频谱聚合ca信息传递的方法和装置

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2013506445

Country of ref document: JP

Kind code of ref document: A

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 10850570

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 13259716

Country of ref document: US

REEP Request for entry into the european phase

Ref document number: 2010850570

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2010850570

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112012021893

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112012021893

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20120830