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WO2012142898A1 - 一种在多载波系统中更改小区的方法及装置 - Google Patents

一种在多载波系统中更改小区的方法及装置 Download PDF

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Publication number
WO2012142898A1
WO2012142898A1 PCT/CN2012/073067 CN2012073067W WO2012142898A1 WO 2012142898 A1 WO2012142898 A1 WO 2012142898A1 CN 2012073067 W CN2012073067 W CN 2012073067W WO 2012142898 A1 WO2012142898 A1 WO 2012142898A1
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WIPO (PCT)
Prior art keywords
cell
command
special cell
delete
special
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PCT/CN2012/073067
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English (en)
French (fr)
Inventor
梁靖
李海涛
陆扬
Original Assignee
电信科学技术研究院
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2012142898A1 publication Critical patent/WO2012142898A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/20Selecting an access point

Definitions

  • carrier aggregation is introduced in the LTE-A (LTE-Advanced, upgraded long-term evolution) system.
  • LTE-A Long Term Evolution-Advanced, upgraded long-term evolution
  • CA Carrier Aggregation, CA
  • the carrier aggregation technology enables a UE (User Equipment) to work simultaneously on multiple cells.
  • One cell includes a pair of UL (Up-Link, uplink) or DL (downlink) member carriers (component).
  • Carrier, CC rather than the LTE system and the mode of only one cell (set of carriers) in the previous wireless communication system.
  • each component carrier may be continuous or non-contiguous, and the bandwidth between component carriers may be the same or different.
  • the maximum bandwidth limit of each component carrier is 20 MHz, each CCs are all a community.
  • the LTE-A (Upgraded Long Term Evolution) system classifies the cells of the carrier aggregation into Pcell (Primary Cell) and Scell (Secondary Cell). Only one cell in the cell (cell) aggregated by the UE is defined as a cell that is aggregated by the PcelL UE except for the Pcell.
  • the FDD (Frequency Division Duplex) and TDD (Time Division Duplex) modes are one radio frame 10ms, which is a subframe lms.
  • TDD Time Division Duplex
  • seven TDD uplink and downlink subframe configuration modes are defined.
  • configuration 1 is DSUUDDSUUD, where D represents a DL subframe, U represents a UL subframe, and S represents a special subframe of the TDD system.
  • LTE Rel-ll (version 11) or later systems in order to avoid interference with other TDD systems, LTE cells located in different bands may use different TDD uplink and downlink subframe configuration modes.
  • the relationship between carrier and frequency band is shown in Fig. 1.
  • Carrier 1 and carrier 2 are located in Band A, carrier 3 is located in Band B, and cell 1, cell 2, and cell 3 are cells on carrier 1, carrier 2, and carrier 3, respectively.
  • the TDD uplink and downlink configurations of the cell 1 and the cell 2 are the same, both of which are configured 1.
  • the configuration of the cell 3 is different from that of the cell 1 and the cell 2, and is configuration 2. If the terminal wants to use these three cells for carrier aggregation, the TDD uplink and downlink configurations of the cells aggregated by the terminal may be different.
  • each TDD configuration set The concept of a special cell (Ecell) is introduced. If the special cell cannot work due to the channel shield, all cells within the TDD configuration set cannot work. In order to maintain the reliability of the special cell, in the case that the current special cell channel shield is degraded, a special cell change is performed, a new special cell is replaced, and the UE is continuously served. In the existing carrier aggregation technology, only the management functions of the primary cell and the secondary cell are available, and there is no management function for the special cell. When the channel Shield of the special cell becomes worse, if the network cannot change the special cell in time, the UE will be in the TDD configuration set.
  • Ecell special cell
  • Embodiments of the present invention provide a method and apparatus for changing a cell in a multi-carrier system, which are used to implement changing a special cell in a multi-carrier system.
  • a method for deleting a cell in a multi-carrier system is applied to a UE side, and includes the following steps:
  • the user equipment UE receives a deletion command sent by the network side to instruct the UE to delete the special cell.
  • the UE deletes the special cell according to the delete command.
  • the UE deactivates or deletes the serving cell with the same TDD configuration as the special cell.
  • a method for adding a cell in a multi-carrier system, which is applied to a UE side includes the following steps:
  • the UE adds the cell corresponding to the cell identifier carried in the command as a new special cell.
  • a method for deleting a cell in a multi-carrier system, applied to a network side includes the following steps:
  • the network side determines that a special cell needs to be deleted
  • the network side sends a delete command for instructing the UE to delete the special cell.
  • a method for adding a cell in a multi-carrier system, applied to the network side includes the following steps:
  • the network side determines the special cell to be added
  • the network side sends an increase command for instructing the UE to add a special cell to the UE.
  • - User equipment including:
  • An interface module configured to receive a delete command sent by the network side to instruct the UE to delete the special cell
  • a control module configured to delete the special cell according to the delete command, and if the UE has the same time division duplex TDD configuration service as the special cell The cell then activates or deletes the serving cell of the same TDD configuration as the special cell.
  • a user equipment including:
  • An interface module configured to receive an increase command sent by the network side to add a special cell
  • the control module is configured to use, as a newly added special cell, a cell corresponding to the cell identifier carried in the add command.
  • a base station comprising:
  • control module configured to determine that a special cell needs to be deleted
  • an interface module configured to send, to the UE, a delete command for instructing the UE to delete the special cell.
  • a base station comprising:
  • control module configured to determine a special cell to be added
  • an interface module configured to send, to the UE, an increase command for instructing the UE to add a special cell.
  • FIG. 1 is a flowchart of a method for deleting a special cell on a UE side according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for deleting a special cell on a network side according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for adding a special cell to a UE side according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for adding a special cell on a network side according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a method for changing a special cell when a UE actively deactivates a serving cell and deletes a command and adds a command to two dedicated commands according to an embodiment of the present disclosure
  • FIG. 6 is a flowchart of a method for changing a special cell when a UE passively deactivates a serving cell and a delete command and an add command are RRC connection reconfiguration messages according to an embodiment of the present disclosure
  • FIG. 7 is a flowchart of a method for changing a special cell when a UE deletes a special cell and a serving cell at the same time, and the deletion command and the increase command are RRC connection reconfiguration messages according to an embodiment of the present invention
  • FIG. 8 is a flowchart of a method for changing a special cell when a UE passively deactivates a serving cell and a delete command and an increase command are handover commands according to an embodiment of the present disclosure
  • FIG. 9 is a structural diagram of a UE when a cell is deleted in an embodiment of the present invention.
  • FIG. 10 is a structural diagram of a UE when a cell is added according to an embodiment of the present invention.
  • FIG. 11 is a structural diagram of a base station when a cell is deleted in an embodiment of the present invention.
  • FIG. 12 is a structural diagram of a base station when a cell is added according to an embodiment of the present invention.
  • the embodiment of the present invention instructs the UE to delete and add a special cell by deleting the command and adding the command, thereby implementing the modification of the special cell.
  • Ecell a concept of a special cell
  • ACK correct response command
  • NACK error response command
  • CQI channel shield indication
  • D-SR Dedicated Scheduling Request
  • Ecell can be used as a path loss reference for all cell uplink transmissions in its TDD UL/DL configuration set; the UL/DL configuration used by the TDD UL/DL configuration set can be broadcast only on the Ecell, and other TDD UL/DL configuration sets are included.
  • the cell uses the same TDD UL/DL configuration as the Ecell;
  • the cross-carrier scheduling is limited to a TDD UL/DL configuration set.
  • Ecell can be used to schedule other cells in the TDD UL/DL configuration set.
  • Common DRX common discontinuous reception
  • the Ecell In the TDD UL/DL configuration set, only the Ecell can be detected by the radio link; if the Ecell radio link fails, the other cells in the TDD UL/DL configuration set cannot work;
  • PHR Power Usage Space
  • the RA (random access) procedure can be initiated on the Ecell
  • the method for deleting a special cell on the UE side in this embodiment is as follows:
  • Step 101 The UE receives a delete command sent by the network side to instruct the UE to delete the special cell.
  • Step 102 The UE deletes the special cell according to the delete command.
  • Step 103 If the UE has a serving cell with the same time division duplex TDD configuration as the special cell, the UE deactivates or deletes the serving cell with the same TDD configuration as the special cell. If there is no serving cell with the same time division duplex TDD configuration as the special cell, there is no need to deactivate or delete the serving cell.
  • the method for deleting a special cell on the network side in this embodiment is as follows:
  • Step 201 The network side determines that the special cell needs to be deleted. For example, the network side determines that the UE needs to delete the special cell when the transmission capacity of the UE is poor on the special cell.
  • Step 202 The network side sends a delete command for instructing the UE to delete the special cell.
  • the method for adding a special cell on the UE side in this embodiment is as follows:
  • Step 301 The UE receives an increase command sent by the network side to add a special cell.
  • Step 302 The UE adds the cell corresponding to the cell identifier carried in the command as a new special cell.
  • the method for adding a special cell on the network side in this embodiment is as follows:
  • Step 401 The network side determines a special cell to be added.
  • the network side is based on the channel shield, the transmission frequency, and Factors such as the TDD configuration mode determine the added special cell.
  • Step 402 The network side sends an increase command for instructing the UE to add a special cell to the UE.
  • the UE may actively activate the serving cell with the same TDD configuration as the special cell after receiving the delete command.
  • the UE deactivates the serving cell with the same TDD configuration as the special cell according to the deactivation command sent by the network side.
  • the UE deactivates the serving cell with the same TDD configuration as the special cell according to the deactivation indication information in the delete command.
  • the UE may delete the serving cell with the same TDD configuration as the special cell according to the deleted serving cell indication information in the delete command.
  • the delete command is a delete command dedicated to deleting a special cell.
  • the delete command is a switch command with a delete indication message indicating that the special cell is deleted.
  • the delete command is a radio resource control RRC connection reconfiguration message with deletion indication information indicating that the special cell is deleted.
  • the initial state of the added special cell may be a deactivated state or an activated state.
  • the method for changing the special cell is as follows:
  • Step 501 The network side sends a delete command for instructing the UE to delete the special cell.
  • Step 502 The UE deletes the special cell according to the delete command.
  • Step 503 The UE deactivates the serving cell with the same TDD configuration as the special cell.
  • Step 504 The network side sends an increase command for instructing the UE to add a special cell to the UE.
  • Step 505 The UE adds the cell corresponding to the cell identifier carried in the command as a new special cell. If the initial state of the added special cell is the active state, the step is ended. If the initial state of the added special cell is deactivated, continue with the following steps.
  • Step 506 The network side sends an activation command for activating a special cell to the UE.
  • the activation command may be a MAC CE (MAC Control Element) command.
  • Step 507 The UE activates the special cell according to the activation command.
  • the service cell can be activated by an activation command in a subsequent process, depending on actual needs.
  • the flow shown in FIG. 5 is an example in which a delete command and an add command are used as two dedicated commands.
  • the delete command and the add command are the same dedicated command, and the dedicated command includes the identifier of the special cell to be deleted and the identifier of the newly added special cell.
  • the UE deletes the corresponding special cell according to the identifier of the special cell to be deleted, and adds the corresponding special cell to the identity of the newly added special cell.
  • the UE currently aggregates the cell 1, the cell 2, the cell 3, and the cell 4, where the cell 1 is a Pcell, the cell 3 is an Ecell, and the cell 2 and the cell 4 are Scells, where the cell 1 and the cell 2 have the same TDD uplink and downlink sub-sub Frame configuration (For TDD configuration set 1), cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2), and all four cells are in an active state.
  • TDD configuration set 1 TDD uplink and downlink sub-sub Frame configuration
  • TDD configuration set 2 TDD uplink and downlink subframe configuration
  • all four cells are in an active state.
  • the UE gradually leaves the coverage of the cell 3. If the cell 3 is disturbed and the channel shield decreases, the channel shield of the UE on the cell 3 becomes worse, and the network side can measure the result.
  • the network side can decide to make a special cell change.
  • the network side deletes the cell 3 by deleting the command, and adds the cell 5 as a new special cell to the UE.
  • the cell 5 and the cell 3 and the cell 4 have the same TDD uplink and downlink subframe configuration (the TDD configuration set 2).
  • the UE deletes the cell 3 and deactivates the cell 4, and then adds the cell 5 to the new special cell according to the increase command to complete the special cell change process.
  • the initial state of the cell 5 after the addition may be activated. If the initial state of the cell 5 is deactivated, the network side may subsequently activate the cell 5 by using a MAC CE command.
  • the deletion command of deleting the cell 3 and the addition command of adding the cell 5 may also be the same command.
  • the method for changing the special cell is as follows:
  • Step 601 The network side sends a deactivation command to the UE, instructing the UE to deactivate the serving cell with the same TDD configuration as the special cell.
  • Step 602 The UE deactivates the serving cell with the same TDD configuration as the special cell.
  • Step 603 The network side sends an RRC connection reconfiguration message for instructing the UE to delete the special cell.
  • Step 604 The UE deletes the special cell according to the RRC connection reconfiguration message.
  • Step 605 The UE uses the cell corresponding to the cell identifier carried in the RRC connection reconfiguration message as the added special cell.
  • the step is ended. If the initial state of the added special cell is deactivated, continue with the following steps.
  • Step 606 The network side sends an activation command for activating a special cell to the UE.
  • the activation command may be a MAC CE (MAC Control Element) command.
  • Step 607 The UE activates the special cell according to the activation command.
  • the method for changing the special cell is as follows:
  • Step 701 The network side sends an RRC connection reconfiguration message for instructing the UE to delete the special cell.
  • the RRC connection reconfiguration message further includes deleting the serving cell indication information, and is used to instruct the UE to delete the serving cell with the same TDD configuration as the special cell.
  • Step 702 The UE deletes the special cell according to the RRC connection reconfiguration message.
  • Step 703 The UE deletes the serving cell with the same TDD configuration as the special cell according to the deleted serving cell indication information.
  • Step 704 The network side sends an RRC connection reconfiguration message for instructing the UE to add a special cell to the UE.
  • the RRC connection reconfiguration message further includes adding serving cell indication information, instructing the UE to increase the serving cell.
  • Step 705 The UE uses the cell corresponding to the cell identifier carried in the RRC connection reconfiguration message as the added special cell.
  • Step 706 The UE increases the serving cell according to the added serving cell indication information.
  • the initial state of the added serving cell is the deactivated state, and if necessary, the network side can activate the newly added serving cell by using an activation command.
  • the step is ended. If the initial state of the added special cell is deactivated, continue with the following steps.
  • Step 707 The network side sends an activation command for activating a special cell to the UE.
  • the activation command may be a MAC CE (MAC Control Element) command.
  • Step 708 The UE activates the special cell according to the activation command.
  • the UE currently aggregates the cell 1, the cell 2, the cell 3, and the cell 4, where the cell 1 is a Pcell, the cell 3 is an Ecell, and the cell 2 and the cell 4 are Scells, where the cell 1 and the cell 2 have the same TDD uplink and downlink sub-sub
  • the frame configuration such as TDD configuration set 1
  • cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2), and all four cells are in an active state.
  • TDD configuration set 1 such as TDD configuration set 1
  • cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2), and all four cells are in an active state.
  • TDD configuration set 2 for example, cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2)
  • all four cells are in an active state.
  • the UE gradually leaves the coverage of the cell 3. If the cell 3 is disturbed and the channel shield decreases, the channel shield
  • the network side can decide to make a special cell change.
  • the network side re-distributes the message through the RRC connection, deletes the cell 3 and the cell 4, and uses the cell 5 as a new special cell, and the cell 4 is added to the UE as a new Scell, where the cell 5 and the cell 3 and the cell 4 have the same TDD uplink and downlink subframe configuration (TDD configuration set 2).
  • TDD configuration set 2 TDD uplink and downlink subframe configuration
  • the UE deletes the cell 3 and the cell 4, then adds the cell 5 to the new special cell, adds the cell 4 to the new Scell, and completes the special cell change process.
  • the initial state of the new area 5 can be activated.
  • the network side may subsequently activate the cell 5 by MAC CE signaling.
  • the initial state after the addition of the cell 4 is deactivation.
  • the RRC connection reconfiguration message of the deleted cell 3 and the added cell 5 may also be the same message.
  • the RRC connection reconfiguration message further includes deactivation indication information, configured to instruct the UE to deactivate the serving cell with the same TDD configuration as the special cell. Then, in step 703, the UE deactivates the serving cell with the same TDD configuration as the special cell, and then the network side does not need to indicate that the UE increases the serving cell by using the RRC connection reconfiguration message.
  • the method for changing the special cell is as follows:
  • Step 801 The network side sends a handover command for instructing the UE to delete the special cell.
  • the handover command may further include deleting indication information of the serving cell other than the serving cell of the special cell and the same TDD configuration as the special cell, and including indication information for adding the part of the cell.
  • Step 802 The UE deletes the special cell according to the handover command.
  • Step 803 The UE deletes the serving cell according to the handover command. This step can be performed in synchronization with step 802.
  • Step 804 The UE uses the cell corresponding to the special cell identifier carried in the handover command as the added special cell.
  • Step 805 The UE uses the cell corresponding to the serving cell identifier carried in the handover command as the newly added serving cell. This step can be performed in synchronization with step 804.
  • the step is ended. If the initial state of the added special cell is deactivated, continue with the following steps.
  • Step 806 The network side sends an activation command for activating a special cell to the UE.
  • the activation command may be a MAC CE (MAC Control Element) command.
  • Step 807 The UE activates the special cell according to the activation command.
  • the UE currently aggregates the cell 1, the cell 2, the cell 3, and the cell 4, where the cell 1 is a Pcell, the cell 3 is an Ecell, and the cell 2 and the cell 4 are Scells, where the cell 1 and the cell 2 have the same TDD uplink and downlink sub-sub
  • the frame configuration such as TDD configuration set 1
  • cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2), and all four cells are in an active state.
  • TDD configuration set 1 such as TDD configuration set 1
  • cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2), and all four cells are in an active state.
  • TDD configuration set 2 for example, cell 3 and cell 4 have the same TDD uplink and downlink subframe configuration (for example, TDD configuration set 2)
  • all four cells are in an active state.
  • the UE gradually leaves the coverage of the cell 3. If the cell 3 is disturbed and the channel shield decreases, the channel shield
  • the network side can decide to make a special cell change.
  • the network side deletes the cell 3 by using the handover command, and adds the cell 5 as a new special cell to the UE.
  • the cell 5 and the cell 3 and the cell 4 have the same TDD uplink and downlink subframe configuration (the TDD configuration set 2).
  • the primary cell after handover is still cell 1, and cell 2 and cell 4 are still Scell.
  • the UE After receiving the handover command, the UE deletes the cell 3, and then adds the cell 5 to the new special cell to complete the special cell change process, and the cell 1 is the switched primary cell (equivalent to switching from the cell 1 to the cell 1), the cell 2 and cell 4 are switched Scells (equivalent to switching from cells 2 and 4 to cells 2 and 4).
  • the initial state of the cell 5 after the addition may be activated. If the initial state of cell 5 is deactivated, the network can subsequently activate cell 5 via the MAC CE.
  • the initial state of the cell 1 after the handover is an active state, and the initial state of the cell 2 and the cell 4 after the handover is a deactivated state.
  • the implementation process of changing a special cell is understood by the above description.
  • the process is mainly implemented by the UE and the network side device.
  • the internal structure and functions of the UE and the network side device are introduced below.
  • the UE in this embodiment includes: an interface module 901 and a control module 902.
  • the interface module 901 is configured to receive and send various messages, such as a delete command sent by the receiving network side to instruct the UE to delete the special cell.
  • the control module 902 is configured to delete the special cell according to the deletion command, and if the UE has the same serving cell as the special cell with the same time division duplex TDD configuration, the UE deactivates or deletes the serving cell with the same TDD configuration as the special cell. Specifically, after receiving the delete command, the control module 902 actively deactivates the serving cell with the same TDD configuration as the special cell. Alternatively, before receiving the delete command, the control module 902 deactivates the same as the special cell according to the deactivation command sent by the network side. The TDD configured serving cell; or, the control module 902 deactivates the serving cell with the same TDD configuration as the special cell according to the deactivation indication information in the delete command.
  • the control module 902 is based on The delete serving cell indication information in the delete command deletes the serving cell with the same TDD configuration as the special cell.
  • the delete command is a delete command dedicated to deleting the special cell; or the delete command is a handover command with the deletion indication information indicating that the special cell is deleted; or the deletion command is a radio resource with the deletion indication information indicating that the special cell is deleted. Control RRC connection reconfiguration message.
  • the UE in this embodiment includes: an interface module 1001 and a control module 1002.
  • the interface module 1001 is configured to receive and send various messages, such as an add command sent by the network side for adding a special cell.
  • the add command is an add command specifically for adding a special cell; or the add command is a handover command with an indication indicating that the special cell is added; or the add command is a radio resource with an indication indicating that the special cell is added.
  • Control RRC connection reconfiguration message is the same command or a different command for instructing the UE to delete the special cell.
  • the control module 1002 is configured to use the cell corresponding to the cell identifier carried in the add command as the added special cell.
  • the initial state of the added special cell is deactivated or activated.
  • the interface module 1001 is further configured to receive an activation command sent by the network side to activate the special cell.
  • control module 1002 is further configured to increase the serving cell according to the added serving cell indication information in the add command.
  • the UE shown in FIG. 9 and FIG. 10 in this embodiment may be the same UE, that is, the interface module 901 and the interface module 1001 are the same module, and the control module 902 and the control module 1002 are the same module.
  • the base station in this embodiment includes: a control module 1101 and an interface module 1102.
  • the base station may be specifically an evolved base station (e B ) or the like.
  • the control module 1101 is configured to determine that a special cell needs to be deleted.
  • the interface module 1102 is configured to receive and send various messages, such as sending a deletion command to the UE for instructing the UE to delete the special cell.
  • the interface module 1102 is further configured to send a deactivation command to the UE before the UE sends a deletion command for instructing the UE to delete the special cell, and instruct the UE to deactivate the serving cell with the same TDD configuration as the special cell.
  • the deletion command includes deactivation indication information for instructing the UE to deactivate the serving cell with the same TDD configuration as the special cell.
  • the deleting command includes deleting the serving cell indication information, and is used to instruct the UE to delete the serving cell with the same TDD configuration as the special cell.
  • the delete command is a delete command dedicated to deleting the special cell; or the delete command is a handover command with the deletion indication information indicating that the special cell is deleted; or the deletion command is a radio resource with the deletion indication information indicating that the special cell is deleted. Control RRC connection reconfiguration message.
  • the base station in this embodiment includes:
  • Control module 1201 is used to determine the particular cell to be added.
  • the interface module 1202 is configured to send, to the UE, an increase command for instructing the UE to add a special cell.
  • Add command The same command or a different command is used to indicate that the UE deletes the special cell.
  • the initial state of the added special cell is deactivated or activated.
  • the interface module 1202 is further configured to send an activation command for activating the special cell to the UE.
  • the adding command includes adding the serving cell indication information, and is used to indicate that the UE increases the serving cell.
  • the add command is an add command specifically for adding a special cell; or the add command is a handover command with an indication indicating that the special cell is added; or the add command is a radio resource with an indication indicating that the special cell is added. Control RRC connection reconfiguration message.
  • the base station shown in FIG. 11 and FIG. 12 in this embodiment may be the same base station, that is, the interface module 1102 and the interface module 1202 are the same module, and the control module 1101 and the control module 1201 are the same module.
  • the embodiment of the present invention instructs the UE to delete and add a special cell by deleting the command and adding the command, thereby implementing the modification of the special cell.
  • the delete command and the add command may be a dedicated command, an RRC connection reconfiguration message, or a handover command, that is, the change of the special cell may be implemented at any timing such as the reconfiguration process, the handover process, and the like.
  • the delete command and the add command can be the same command to save signaling resources.
  • the deactivation or deletion of the serving cell can also be implemented by deleting the command or deactivating the command, especially when the deletion command is implemented, which can further save signaling resources. However, when the implementation is deactivated, there is better compatibility.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention is in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) in which computer usable program code is embodied.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that the computer Or performing a series of operational steps on other programmable devices to produce computer-implemented processing such that instructions executed on a computer or other programmable device are provided for implementing a block in a flow or a flow and/or block diagram of the flowchart Or the steps of the function specified in multiple boxes.

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Abstract

一种在多载波系统中更改小区的方法,用于实现在多载波系统中更改特殊小区。删除方法包括:用户设备UE接收网络侧发送的用于指示UE删除特殊小区的删除命令;UE根据删除命令删除特殊小区;如果该UE有与特殊小区相同时分双工TDD配置的服务小区,则UE去激活或删除该与特殊小区相同TDD配置的服务小区。本发明还公开了用于实现所述方法的装置。

Description

一种在多载波系统中更改小区的方法及装置 本申请要求在 2012年 04月 19日提交中国专利局、 申请号为 "201110097535.1、 发明名称 为一种在多载波系统中更改小区的方法及装置 "的中国专利申请的优先权, 其全部内容通过引 用结合在本申请中。 技术领域 本发明涉及通信领域, 特别是涉及一种在多载波系统中更改小区的方法及装置。 背景技术 为了提高峰值速率, 与 LTE ( Long Term Evolution, 长期演进) 系统兼容, 以及为了 满足充分利用频谱资源的需要, 在 LTE- A ( LTE- Advanced, 升级的长期演进) 系统中引入 了载波聚合( Carrier Aggregation, CA )技术。 载波聚合技术使 UE ( User Equipment, 用户 设备 )可以在多个小区上同时工作, 一个小区包含一对 UL ( Up-Link, 上行链路)或 DL ( Down Link, 下行链路)成员载波( component carrier, CC ), 而不是 LTE系统以及之前 的无线通信系统中只有一个小区 (一套载波) 的模式。 在载波聚合的系统中各个成员载波 可以是连续, 也可以是非连续的, 各成员载波间的带宽可以相同或不同, 为了保持和 LTE 系统兼容,每个成员载波的最大带宽限制为 20MHz,每个 CC都是一个小区。此外, LTE-A (升级的长期演进)系统还对载波聚合的小区进行了分类, 分为 Pcell ( Primary Cell, 主小 区)和 Scell ( Secondary Cell, 辅小区)。 UE聚合的 cell (小区) 中只有一个 cell被定义为 PcelL UE聚合的除了 Pcell之外的其它 cell都称为 Scell。
在 LTE系统中, FDD ( Frequency Division Duplex, 频分双工)和 TDD ( Time division duplex, 时分双工)模式都是一个无线帧 10ms, —个子帧 lms。 对于每个 TDD的无线帧, 定义了七种 TDD上下行子帧配置模式。 例如, 配置 1为 DSUUDDSUUD, 其中 D代表 DL 子帧, U代表 UL子帧, S代表 TDD系统的特殊子帧。 LTE Rel-ll (版本 11 )或以后版本 的系统中, 为了避免对其他 TDD系统的千扰, 位于不同 Band (频带)的 LTE小区可能使 用不同的 TDD上下行子帧配置模式。 载波与频带的关系参见图 1所示, 载波 1和载波 2 位于 Band A, 载波 3位于 Band B, 小区 1、 小区 2和小区 3分别是载波 1、 载波 2和载波 3上的小区。 小区 1和小区 2的 TDD上下行配置相同, 均为配置 1 , 小区 3的配置与小区 1和小区 2不同, 为配置 2。 如果终端希望利用这三个小区进行载波聚合, 那么就会出现 终端所聚合小区的 TDD上下行配置不同的情况。
为了使 UE可以聚合不同 TDD上下行子帧配置集合的小区, 在每个 TDD配置集合之 内, 引入了特殊小区 (Especial cell , Ecell ) 的概念。 如果特殊小区由于信道盾量的原因, 不能工作的话, 则该 TDD 配置集合之内的所有小区都不能工作。 为了维护特殊小区的可 靠性, 在当前特殊小区信道盾量变差的情况下, 进行特殊小区更改, 更换一个新的特殊小 区, 继续为 UE提供服务。 而现有载波聚合技术中只有主小区、 辅小区的管理功能, 没有 针对特殊小区的管理功能, 当特殊小区信道盾量变差时,如果网络不能及时更改特殊小区, 将造成 UE在该 TDD配置集合上无法工作, 降低 UE和系统性能, 影响用户体验。 发明内容 本发明实施例提供一种在多载波系统中更改小区的方法及装置, 用于实现在多载波系 统中更改特殊小区。
一种在多载波系统中删除小区的方法, 应用于 UE侧, 包括以下步骤:
用户设备 UE接收网络侧发送的用于指示 UE删除特殊小区的删除命令;
UE根据删除命令删除特殊小区;
如果该 UE有与特殊小区相同时分双工 TDD配置的服务小区,则 UE去激活或删除该 与特殊小区相同 TDD配置的服务小区。
一种在多载波系统中增加小区的方法, 应用于 UE侧, 包括以下步骤:
UE接收网络侧发送的用于增加特殊小区的增加命令;
UE将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。
一种在多载波系统中删除小区的方法, 应用于网络侧, 包括以下步骤:
网络侧确定需删除特殊小区;
网络侧向 UE发送用于指示 UE删除特殊小区的删除命令。
一种在多载波系统中增加小区的方法, 应用于网络侧, 包括以下步骤:
网络侧确定需增加的特殊小区;
网络侧向 UE发送用于指示 UE增加特殊小区的增加命令。
—种用户设备, 包括:
接口模块, 用于接收网络侧发送的用于指示 UE删除特殊小区的删除命令; 控制模块, 用于根据删除命令删除特殊小区, 以及, 如果该 UE有与特殊小区相同时 分双工 TDD配置的服务小区, 则 UE去激活或删除该与特殊小区相同 TDD配置的服务小 区。
一种用户设备, 包括:
接口模块, 用于接收网络侧发送的用于增加特殊小区的增加命令;
控制模块, 用于将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。 一种基站, 包括:
控制模块, 用于确定需删除特殊小区;
接口模块, 用于向 UE发送用于指示 UE删除特殊小区的删除命令。
一种基站, 包括:
控制模块, 用于确定需增加的特殊小区;
接口模块, 用于向 UE发送用于指示 UE增加特殊小区的增加命令。
本发明实施例通过删除命令和增加命令来指示 UE删除和增加特殊小区, 从而实现对 特殊小区的更改。 附图说明 图 1为本发明实施例中删除特殊小区在 UE侧的方法流程图;
图 2为本发明实施例中删除特殊小区在网络侧的方法流程图;
图 3为本发明实施例中增加特殊小区在 UE侧的方法流程图;
图 4为本发明实施例中增加特殊小区在网络侧的方法流程图;
图 5为本发明实施例中 UE主动去激活服务小区且删除命令与增加命令为两个专用命 令时, 更改特殊小区的方法流程图;
图 6为本发明实施例中 UE被动去激活服务小区且删除命令与增加命令为 RRC连接重 配消息时, 更改特殊小区的方法流程图;
图 7 为本发明实施例中 UE 同时删除特殊小区和服务小区且删除命令与增加命令为 RRC连接重配消息时, 更改特殊小区的方法流程图;
图 8为本发明实施例中 UE被动去激活服务小区且删除命令与增加命令为切换命令时, 更改特殊小区的方法流程图;
图 9为本发明实施例中删除小区时 UE的结构图;
图 10为本发明实施例中增加小区时 UE的结构图;
图 11为本发明实施例中删除小区时基站的结构图;
图 12为本发明实施例中增加小区时基站的结构图。 具体实施方式 本发明实施例通过删除命令和增加命令来指示 UE删除和增加特殊小区, 从而实现对 特殊小区的更改。
首先介绍特殊小区。 为了使 UE可以聚合不同 TDD上下行子帧配置集合的小区,在每 个 TDD配置集合之内, 引入了特殊小区 (Especial cell , Ecell ) 的概念, 该小区具有如下 全部或者部分功能:
本 TDD UL/DL配置集合内各个 cell (小区) 的 ACK (正确应答指令) /NACK (错误 应答指令)反馈、 CQI (信道盾量指示)反馈、 和 D-SR ( Dedicated Scheduling Request, 专用调度请求) 中的一项或多项都可以配置在该 Ecell上;
Ecell可以作为其归属 TDD UL/DL配置集内所有 cell上行传输的路损参考; 可以只在 Ecell上广播该 TDD UL/DL配置集合使用的 UL/DL配置, 该 TDD UL/DL 配置集合内其它 cell使用和 Ecell相同的 TDD UL/DL配置;
跨载波调度限制在一个 TDD UL/DL配置集合内,比如可以用 Ecell调度该 TDD UL/DL 配置集合内的其它 cell;
可以基于 Ecell对该 TDD UL/DL配置集合内的所有 cell做 common DRX(公共非连续 接收);
在 TDD UL/DL配置集合内, 可以只对 Ecell进行无线链路检测; 如果 Ecell无线链路 失败, 那么该 TDD UL/DL配置集合内其它 cell均不能工作;
可以基于 TDD UL/DL配置集合维护 PHR (功率使用空间);
可以在 Ecell上发起 RA (随机接入)过程;
了解了特殊小区, 下面对更改特殊小区的过程进行介绍。
参见图 1 , 本实施例中删除特殊小区在 UE侧的方法流程如下:
步骤 101 : UE接收网络侧发送的用于指示 UE删除特殊小区的删除命令。
步骤 102: UE根据删除命令删除特殊小区。
步骤 103: 如果该 UE有与特殊小区相同时分双工 TDD配置的服务小区, 则 UE去激 活或删除该与特殊小区相同 TDD 配置的服务小区。 如果没有与特殊小区相同时分双工 TDD配置的服务小区, 则不需要去激活或删除服务小区。
参见图 2, 本实施例中删除特殊小区在网络侧的方法流程如下:
步骤 201 : 网络侧确定需删除特殊小区。 例如, 网络侧确定 UE在特殊小区上的传输 盾量较差时确定需删除特殊小区。
步骤 202: 网络侧向 UE发送用于指示 UE删除特殊小区的删除命令。
为了保证 UE传输的连续性, 一般在删除特殊小区时, 还需要为 UE增加特殊小区, 参见下面的实施例。
参见图 3 , 本实施例中增加特殊小区在 UE侧的方法流程如下:
步骤 301 : UE接收网络侧发送的用于增加特殊小区的增加命令。
步骤 302: UE将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。 参见图 4, 本实施例中增加特殊小区在网络侧的方法流程如下:
步骤 401 : 网络侧确定需增加的特殊小区。 例如, 网络侧根据信道盾量、 传输频率和 TDD配置模式等因素确定增加的特殊小区。
步骤 402: 网络侧向 UE发送用于指示 UE增加特殊小区的增加命令。
UE在去激活与特殊小区相同 TDD配置的服务小区的过程中, 可以接收删除命令后 , 主动去激活该与特殊小区相同 TDD配置的服务小区。 或者, UE接收删除命令之前, 根据 网络侧发送的去激活命令去激活该与特殊小区相同 TDD配置的服务小区。 或者, UE根据 删除命令中的去激活指示信息, 去激活该与特殊小区相同 TDD配置的服务小区。 UE删除 与特殊小区相同 TDD 配置的服务小区的过程中, 可以根据删除命令中的删除服务小区指 示信息, 删除该与特殊小区相同 TDD 配置的服务小区。 另外, 删除命令为专门用于删除 特殊小区的删除命令。 或者, 删除命令为带有表示删除特殊小区的删除指示信息的切换命 令。 或者, 删除命令为带有表示删除特殊小区的删除指示信息的无线资源控制 RRC 连接 重配消息。 并且, 新增的特殊小区的初始状态可以为去激活态或激活态。
由于存在以上多种实现方式, 下面通过几个典型实施例来详细介绍更改特殊'』、区的过 程。
参见图 5 , 本实施例中 UE主动去激活服务小区且删除命令与增加命令为两个专用命 令时, 更改特殊小区的方法流程如下:
步骤 501 : 网络侧向 UE发送用于指示 UE删除特殊小区的删除命令。
步骤 502: UE根据删除命令删除特殊小区。
步骤 503: UE去激活与特殊小区相同 TDD配置的服务小区。
步骤 504: 网络侧向 UE发送用于指示 UE增加特殊小区的增加命令。
步骤 505: UE将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。 如果新增的特殊小区的初始状态为激活态, 则结束步骤。 如果新增的特殊小区的初始 状态为去激活态, 则继续下面的步骤。
步骤 506: 网络侧向 UE发送用于激活特殊小区的激活命令。该激活命令可为 MAC CE ( MAC Control Element, 媒体接入层控制单元 )命令。
步骤 507: UE根据激活命令激活特殊小区。
对于已去激活的服务小区, 视实际需要, 可在后续过程中通过激活命令来激活服务小 区。
图 5所示的流程是以删除命令和增加命令为两个专用命令为例进行说明。 还可以有另 一种方式, 即删除命令和增加命令为同一个专用命令, 则该专用命令包括需删除的特殊小 区的标识和新增的特殊小区的标识。 UE根据需删除的特殊小区的标识删除相应的特殊小 区, 以及才 居新增的特殊小区的标识增加相应的特殊小区。
例如, UE当前聚合了小区 1、 小区 2、 小区 3和小区 4, 其中小区 1为 Pcell、 小区 3 为 Ecell, 小区 2和小区 4为 Scell, 其中小区 1和小区 2具有相同的 TDD上下行子帧配置 (如为 TDD配置集合 1 ), 小区 3和小区 4具有相同的 TDD上下行子帧配置 (如为 TDD 配置集合 2 ), 四个小区均处于激活状态。 随着 UE的移动, UE逐渐离开小区 3的覆盖范 围, 或者小区 3由于受到千扰, 信道盾量下降, 则 UE在小区 3上的信道盾量变差, 网络 侧可以通过测量上 ·ί艮结果获知小区 3的信道盾量变差, 则网络侧可以判决进行特殊小区更 改。 网络侧通过删除命令,删除小区 3 , 并将小区 5作为新的特殊小区, 增加给 UE, 其中, 小区 5和小区 3、 小区 4具有相同的 TDD上下行子帧配置( TDD配置集合 2 )。 UE收到该 删除命令之后, 删除小区 3 , 同时去激活小区 4, 然后根据增加命令增加小区 5为新的特 殊小区, 完成特殊小区更改过程。 而小区 5在新增后的初始状态可以是激活的。 如果小区 5的初始状态是去激活, 则网络侧可以后续通过 MAC CE命令激活小区 5。 删除小区 3的 删除命令和增加小区 5的增加命令也可以是同一条命令。
参见图 6, 本实施例中 UE被动去激活服务小区且删除命令与增加命令为 RRC (无线 资源控制)连接重配消息时, 更改特殊小区的方法流程如下:
步骤 601 : 网络侧向 UE发送去激活命令, 指示 UE去激活与特殊小区相同 TDD配置 的服务小区。
步骤 602: UE去激活与特殊小区相同 TDD配置的服务小区。
步骤 603: 网络侧向 UE发送用于指示 UE删除特殊小区的 RRC连接重配消息。
步骤 604: UE根据 RRC连接重配消息删除特殊小区。
步骤 605: UE将 RRC连接重配消息中携带的小区标识所对应的小区作为新增的特殊 小区。
如果新增的特殊小区的初始状态为激活态, 则结束步骤。 如果新增的特殊小区的初始 状态为去激活态, 则继续下面的步骤。
步骤 606: 网络侧向 UE发送用于激活特殊小区的激活命令。该激活命令可为 MAC CE ( MAC Control Element, 媒体接入层控制单元 )命令。
步骤 607: UE根据激活命令激活特殊小区。
参见图 7 ,本实施例中 UE同时删除特殊小区和服务小区且删除命令与增加命令为 RRC 连接重配消息时, 更改特殊小区的方法流程如下:
步骤 701 : 网络侧向 UE发送用于指示 UE删除特殊小区的 RRC连接重配消息。 RRC 连接重配消息还包括删除服务小区指示信息,用于指示 UE删除与特殊小区相同 TDD配置 的服务小区。
步骤 702: UE根据 RRC连接重配消息删除特殊小区。
步骤 703: UE根据删除服务小区指示信息删除与特殊小区相同 TDD配置的服务小区。 步骤 704: 网络侧向 UE发送用于指示 UE增加特殊小区的 RRC连接重配消息。 RRC 连接重配消息还包括增加服务小区指示信息, 指示 UE增加服务小区。 步骤 705: UE将 RRC连接重配消息中携带的小区标识所对应的小区作为新增的特殊 小区。
步骤 706: UE根据增加服务小区指示信息增加服务小区。增加的服务小区的初始状态 为去激活态, 后续如果需要, 网络侧可通过激活命令激活新增的服务小区。
如果新增的特殊小区的初始状态为激活态, 则结束步骤。 如果新增的特殊小区的初始 状态为去激活态, 则继续下面的步骤。
步骤 707: 网络侧向 UE发送用于激活特殊小区的激活命令。该激活命令可为 MAC CE ( MAC Control Element, 媒体接入层控制单元 )命令。
步骤 708: UE根据激活命令激活特殊小区。
例如, UE当前聚合了小区 1、 小区 2、 小区 3和小区 4, 其中小区 1为 Pcell、 小区 3 为 Ecell, 小区 2和小区 4为 Scell, 其中小区 1和小区 2具有相同的 TDD上下行子帧配置 (如为 TDD配置集合 1 ), 小区 3和小区 4具有相同的 TDD上下行子帧配置 (如为 TDD 配置集合 2 ), 四个小区均处于激活状态。 随着 UE的移动, UE逐渐离开小区 3的覆盖范 围, 或者小区 3由于受到千扰, 信道盾量下降, 则 UE在小区 3上的信道盾量变差, 网络 侧可以通过测量上 ·ί艮结果获知小区 3的信道盾量变差, 则网络侧可以判决进行特殊小区更 改。 网络侧通过 RRC连接重配消息,删除小区 3和小区 4,并将小区 5作为新的特殊小区, 小区 4作为新的 Scell, 增加给 UE, 其中, 小区 5和小区 3、 小区 4具有相同的 TDD上下 行子帧配置( TDD配置集合 2 )。 UE收到该 RRC连接重配消息之后,删除小区 3和小区 4, 然后增加小区 5为新的特殊小区, 增加小区 4为新的 Scell, 完成特殊小区更改过程。 而小 区 5在新增后的初始状态可以是激活的。 如果小区 5的初始状态是去激活, 则网络侧可以 后续通过 MAC CE信令激活小区 5。 小区 4新增之后的初始状态为去激活。 删除小区 3和 增加小区 5的 RRC连接重配消息也可以是同一条消息。
还有一种实现方式, 在步骤 701中, RRC连接重配消息还包括去激活指示信息, 用于 指示 UE去激活与特殊小区相同 TDD配置的服务小区。 则在步骤 703中, UE去激活与特 殊小区相同 TDD配置的服务小区, 那么网络侧不需要通过 RRC连接重配消息来指示 UE 增加服务小区。
参见图 8 , 本实施例中 UE被动去激活服务小区且删除命令与增加命令为切换命令时, 更改特殊小区的方法流程如下:
步骤 801 : 网络侧向 UE发送用于指示 UE删除特殊小区的切换命令。切换命令还可以 包括删除除特殊小区和与特殊小区相同 TDD 配置的服务小区之外的其它服务小区的指示 信息, 及包括增加这部分小区的指示信息。
步骤 802: UE根据切换命令删除特殊小区。
步骤 803: UE根据切换命令删除服务小区。 此步骤可以与步骤 802同步进行。 步骤 804: UE将切换命令中携带的特殊小区标识所对应的小区作为新增的特殊小区。 步骤 805: UE将切换命令中携带的服务小区标识所对应的小区作为新增的服务小区。 此步骤可以与步骤 804同步进行。
如果新增的特殊小区的初始状态为激活态, 则结束步骤。 如果新增的特殊小区的初始 状态为去激活态, 则继续下面的步骤。
步骤 806: 网络侧向 UE发送用于激活特殊小区的激活命令。该激活命令可为 MAC CE ( MAC Control Element, 媒体接入层控制单元 )命令。
步骤 807: UE根据激活命令激活特殊小区。
例如, UE当前聚合了小区 1、 小区 2、 小区 3和小区 4, 其中小区 1为 Pcell、 小区 3 为 Ecell, 小区 2和小区 4为 Scell, 其中小区 1和小区 2具有相同的 TDD上下行子帧配置 (如为 TDD配置集合 1 ), 小区 3和小区 4具有相同的 TDD上下行子帧配置 (如为 TDD 配置集合 2 ), 四个小区均处于激活状态。 随着 UE的移动, UE逐渐离开小区 3的覆盖范 围, 或者小区 3由于受到千扰, 信道盾量下降, 则 UE在小区 3上的信道盾量变差, 网络 侧可以通过测量上 ·ί艮结果获知小区 3的信道盾量变差, 则网络侧可以判决进行特殊小区更 改。 网络侧通过切换命令,删除小区 3 , 并将小区 5作为新的特殊小区, 增加给 UE, 其中, 小区 5和小区 3、 小区 4具有相同的 TDD上下行子帧配置 ( TDD配置集合 2 )。 切换之后 的主小区仍为小区 1 ,而小区 2和小区 4仍为 Scell。 UE收到该切换命令之后,删除小区 3 , 然后增加小区 5为新的特殊小区, 完成特殊小区更改过程, 同时小区 1为切换后的主小区 (相当于从小区 1切换到小区 1 ), 小区 2和小区 4为切换后的 Scell (相当于从小区 2和 4 切换到小区 2和 4 )。 而小区 5在新增后的初始状态可以是激活的。 如果小区 5的初始状态 是去激活, 则网络可以后续通过 MAC CE激活小区 5。 小区 1在切换之后的初始状态是激 活态, 而小区 2和小区 4在切换之后的初始状态为去激活态。
通过以上描述了解了更改特殊小区的实现过程,该过程主要由 UE和网络侧设备实现, 下面对 UE和网络侧设备的内部结构和功能进行介绍。
参见图 9, 本实施例中 UE包括: 接口模块 901和控制模块 902。
接口模块 901用于接收和发送各种消息, 如接收网络侧发送的用于指示 UE删除特殊 小区的删除命令。
控制模块 902用于根据删除命令删除特殊小区, 以及, 如果该 UE有与特殊小区相同 时分双工 TDD配置的服务小区, 则 UE去激活或删除该与特殊小区相同 TDD配置的服务 小区。 具体的, 控制模块 902接收删除命令后, 主动去激活该与特殊小区相同 TDD配置 的服务小区; 或者, 控制模块 902接收删除命令之前, 根据网络侧发送的去激活命令去激 活该与特殊小区相同 TDD配置的服务小区; 或者, 控制模块 902根据删除命令中的去激 活指示信息, 去激活该与特殊小区相同 TDD配置的服务小区。 或者, 控制模块 902根据 删除命令中的删除服务小区指示信息, 删除该与特殊小区相同 TDD 配置的服务小区。 删 除命令为专门用于删除特殊小区的删除命令; 或者, 删除命令为带有表示删除特殊小区的 删除指示信息的切换命令; 或者, 删除命令为带有表示删除特殊小区的删除指示信息的无 线资源控制 RRC连接重配消息。
参见图 10, 本实施例中 UE包括: 接口模块 1001和控制模块 1002。
接口模块 1001 用于接收和发送各种消息, 如接收网络侧发送的用于增加特殊小区的 增加命令。 增加命令为专门用于增加特殊小区的增加命令; 或者, 增加命令为带有表示增 加特殊小区的增加指示信息的切换命令; 或者, 增加命令为带有表示增加特殊小区的增加 指示信息的无线资源控制 RRC连接重配消息。所述增加命令与用于指示 UE删除特殊小区 的删除命令为同一条命令或为不同的命令。
控制模块 1002用于将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。 新增的特殊小区的初始状态为去激活态或激活态。 当新增的特殊小区的初始状态为去 激活态时, 接口模块 1001还用于接收网络侧发送的用于激活特殊小区的激活命令。
当 UE增加与源特殊小区相同 TDD配置的服务小区时, 控制模块 1002还用于根据增 加命令中增加服务小区指示信息, 增加服务小区。
本实施例中图 9和图 10所示的 UE可以是同一 UE, 即接口模块 901与接口模块 1001 为同一模块, 控制模块 902与控制模块 1002为同一模块。
参见图 11 , 本实施例中基站包括: 控制模块 1101和接口模块 1102。 该基站可具体为 演进基站(e B )等。
控制模块 1101用于确定需删除特殊小区。
接口模块 1102用于接收和发送各种消息, 如向 UE发送用于指示 UE删除特殊小区的 删除命令。
接口模块 1102还用于向 UE发送用于指示 UE删除特殊小区的删除命令之前, 向 UE 发送去激活命令, 指示 UE去激活与特殊小区相同 TDD配置的服务小区。 或者, 删除命令 包括去激活指示信息, 用于指示 UE去激活与特殊小区相同 TDD配置的服务小区。 或者, 删除命令包括删除服务小区指示信息,用于指示 UE删除与特殊小区相同 TDD配置的服务 小区。
删除命令为专门用于删除特殊小区的删除命令; 或者, 删除命令为带有表示删除特殊 小区的删除指示信息的切换命令; 或者, 删除命令为带有表示删除特殊小区的删除指示信 息的无线资源控制 RRC连接重配消息。
参见图 12, 本实施例中基站包括:
控制模块 1201用于确定需增加的特殊小区。
接口模块 1202用于向 UE发送用于指示 UE增加特殊小区的增加命令。所述增加命令 与用于指示 UE删除特殊小区的删除命令为同一条命令或为不同的命令。
新增的特殊小区的初始状态为去激活态或激活态。 当新增的特殊小区的初始状态为去 激活态时, 接口模块 1202还用于向 UE发送用于激活特殊小区的激活命令。
当 UE增加与源特殊小区相同 TDD配置的服务小区时,增加命令包括增加服务小区指 示信息, 用于指示 UE增加服务小区。
增加命令为专门用于增加特殊小区的增加命令; 或者, 增加命令为带有表示增加特殊 小区的增加指示信息的切换命令; 或者, 增加命令为带有表示增加特殊小区的增加指示信 息的无线资源控制 RRC连接重配消息。
本实施例中图 11和图 12所示的基站可以是同一基站, 即接口模块 1102与接口模块 1202为同一模块, 控制模块 1101与控制模块 1201为同一模块。
本发明实施例通过删除命令和增加命令来指示 UE删除和增加特殊小区, 从而实现对 特殊小区的更改。 并且, 删除命令和增加命令可以是专用命令、 RRC连接重配消息或切换 命令, 也就是说可以在重配过程、 切换过程等任何一个时机都可以实现特殊小区的更改。 以及, 删除命令和增加命令可以是同一条命令, 以节省信令资源。 另外, 关于服务小区的 去激活或删除, 也可以通过删除命令或去激活命令来实现, 尤其是通过删除命令实现时, 可进一步节省信令资源。 但通过去激活命令来实现时, 有较好的兼容性。
本领域内的技术人员应明白, 本发明的实施例可提供为方法、 系统、 或计算机程序产 品。 因此, 本发明可釆用完全硬件实施例、 完全软件实施例、 或结合软件和硬件方面的实 施例的形式。 而且, 本发明可釆用在一个或多个其中包含有计算机可用程序代码的计算机 可用存储介盾 (包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形 式。
本发明是参照根据本发明实施例的方法、 设备(系统)、 和计算机程序产品的流程图 和 /或方框图来描述的。 应理解可由计算机程序指令实现流程图和 /或方框图中的每一流 程和 /或方框、 以及流程图和 /或方框图中的流程和 /或方框的结合。 可提供这些计算机 程序指令到通用计算机、 专用计算机、 嵌入式处理机或其他可编程数据处理设备的处理器 以产生一个机器, 使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用 于实现在流程图一个流程或多个流程和 /或方框图一个方框或多个方框中指定的功能的 装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方 式工作的计算机可读存储器中, 使得存储在该计算机可读存储器中的指令产生包括指令装 置的制造品, 该指令装置实现在流程图一个流程或多个流程和 /或方框图一个方框或多个 方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上, 使得在计算机 或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理, 从而在计算机或其他 可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和 /或方框图一个 方框或多个方框中指定的功能的步骤。
显然, 本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和 范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内, 则本发明也意图包含这些改动和变型在内。

Claims

权 利 要 求
1、 一种在多载波系统中删除小区的方法, 其特征在于, 包括以下步骤:
用户设备 UE接收网络侧发送的用于指示 UE删除特殊小区的删除命令;
UE根据删除命令删除特殊小区;
如果该 UE有与特殊小区相同时分双工 TDD配置的服务小区,则 UE去激活或删除该 与特殊小区相同 TDD配置的服务小区。
2、 如权利要求 1所述的方法, 其特征在于, UE去激活该与特殊小区相同 TDD配置 的服务小区的步骤包括:
UE接收删除命令后 , 主动去激活该与特殊小区相同 TDD配置的服务小区; 或者 UE接收删除命令之前, 根据网络侧发送的去激活命令去激活该与特殊小区相同 TDD 配置的服务小区; 或者
UE根据删除命令中的去激活指示信息, 去激活该与特殊小区相同 TDD配置的服务小 区。
3、 如权利要求 1所述的方法, 其特征在于, UE删除该与特殊小区相同 TDD配置的 服务小区的步骤包括: UE根据删除命令中的删除服务小区指示信息, 删除该与特殊小区 相同 TDD配置的服务小区。
4、 如权利要求 1至 3 中任一项所述的方法, 其特征在于, 删除命令为专门用于删除 特殊小区的删除命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的切换命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的无线资源控制 RRC 连接重配消 息。
5、 一种在多载波系统中增加小区的方法, 其特征在于, 包括以下步骤:
UE接收网络侧发送的用于增加特殊小区的增加命令;
UE将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。
6、 如权利要求 5 所述的方法, 其特征在于, 新增的特殊小区的初始状态为去激活态 或激活态。
7、 如权利要求 6 所述的方法, 其特征在于, 当新增的特殊小区的初始状态为去激活 态时, 还包括步骤: UE接收网络侧发送的用于激活特殊小区的激活命令。
8、 如权利要求 5所述的方法, 其特征在于, 当 UE增加与源特殊小区相同 TDD配置 的服务小区时, 还包括步骤: UE根据增加命令中增加服务小区指示信息, 增加服务小区。
9、 如权利要求 5至 8中任一项所述的方法, 其特征在于, 增加命令为专门用于增加 特殊小区的增加命令; 或者 增加命令为带有表示增加特殊小区的增加指示信息的切换命令; 或者
增加命令为带有表示增加特殊小区的增加指示信息的无线资源控制 RRC 连接重配消 息。
10、 如权利要求 5所述的方法, 其特征在于, 所述增加命令与用于指示 UE删除特殊 小区的删除命令为同一条命令或为不同的命令。
11、 一种在多载波系统中删除小区的方法, 其特征在于, 包括以下步骤:
网络侧确定需删除特殊小区;
网络侧向 UE发送用于指示 UE删除特殊小区的删除命令。
12、 如权利要求 11所述的方法, 其特征在于, 还包括步骤: 网络侧向 UE发送用于指 示 UE删除特殊小区的删除命令之前, 向 UE发送去激活命令, 指示 UE去激活与特殊小 区相同 TDD配置的服务小区; 或者
删除命令包括去激活指示信息,用于指示 UE去激活与特殊小区相同 TDD配置的服务 小区。
13、 如权利要求 11所述的方法, 其特征在于, 删除命令包括删除服务小区指示信息, 用于指示 UE删除与特殊小区相同 TDD配置的服务小区。
14、 如权利要求 11至 13中任一项所述的方法, 其特征在于, 删除命令为专门用于删 除特殊小区的删除命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的切换命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的无线资源控制 RRC 连接重配消 息。
15、 一种在多载波系统中增加小区的方法, 其特征在于, 包括以下步骤:
网络侧确定需增加的特殊小区;
网络侧向 UE发送用于指示 UE增加特殊小区的增加命令。
16、 如权利要求 15 所述的方法, 其特征在于, 新增的特殊小区的初始状态为去激活 态或激活态。
17、 如权利要求 16 所述的方法, 其特征在于, 当新增的特殊小区的初始状态为去激 活态时, 还包括步骤: 网络侧向 UE发送用于激活特殊小区的激活命令。
18、 如权利要求 15所述的方法, 其特征在于, 当 UE增加与源特殊小区相同 TDD配 置的服务小区时, 增加命令包括增加服务小区指示信息, 用于指示 UE增加服务小区。
19、 如权利要求 15至 18中任一项所述的方法, 其特征在于, 增加命令为专门用于增 加特殊小区的增加命令; 或者
增加命令为带有表示增加特殊小区的增加指示信息的切换命令; 或者
增加命令为带有表示增加特殊小区的增加指示信息的无线资源控制 RRC 连接重配消 息。
20、 如权利要求 15所述的方法, 其特征在于, 所述增加命令与用于指示 UE删除特殊 小区的删除命令为同一条命令或为不同的命令。
21、 一种用户设备, 其特征在于, 包括:
接口模块, 用于接收网络侧发送的用于指示 UE删除特殊小区的删除命令; 控制模块, 用于根据删除命令删除特殊小区, 以及, 如果该 UE有与特殊小区相同时 分双工 TDD配置的服务小区, 则 UE去激活或删除该与特殊小区相同 TDD配置的服务小 区。
22、 如权利要求 21 所述的用户设备, 其特征在于, 控制模块接收删除命令后, 主动 去激活该与特殊小区相同 TDD配置的服务小区; 或者
控制模块接收删除命令之前, 根据网络侧发送的去激活命令去激活该与特殊小区相同 TDD配置的服务小区; 或者
控制模块根据删除命令中的去激活指示信息, 去激活该与特殊小区相同 TDD 配置的 服务小区。
23、 如权利要求 21 所述的用户设备, 其特征在于, 控制模块根据删除命令中的删除 服务小区指示信息, 删除该与特殊小区相同 TDD配置的服务小区。
24、 如权利要求 21至 23中任一项所述的用户设备, 其特征在于, 删除命令为专门用 于删除特殊小区的删除命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的切换命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的无线资源控制 RRC 连接重配消 息。
25、 一种用户设备, 其特征在于, 包括:
接口模块, 用于接收网络侧发送的用于增加特殊小区的增加命令;
控制模块, 用于将增加命令中携带的小区标识所对应的小区作为新增的特殊小区。
26、 如权利要求 25 所述的用户设备, 其特征在于, 新增的特殊小区的初始状态为去 激活态或激活态。
27、 如权利要求 26 所述的用户设备, 其特征在于, 当新增的特殊小区的初始状态为 去激活态时, 接口模块还用于接收网络侧发送的用于激活特殊小区的激活命令。
28、如权利要求 25所述的用户设备,其特征在于, 当 UE增加与源特殊小区相同 TDD 配置的服务小区时, 控制模块还用于根据增加命令中增加服务小区指示信息, 增加服务小 区。
29、 如权利要求 25至 28中任一项所述的用户设备, 其特征在于, 增加命令为专门用 于增加特殊小区的增加命令; 或者 增加命令为带有表示增加特殊小区的增加指示信息的切换命令; 或者
增加命令为带有表示增加特殊小区的增加指示信息的无线资源控制 RRC 连接重配消 息。
30、 如权利要求 25所述的用户设备, 其特征在于, 所述增加命令与用于指示 UE删除 特殊小区的删除命令为同一条命令或为不同的命令。
31、 一种基站, 其特征在于, 包括:
控制模块, 用于确定需删除特殊小区;
接口模块, 用于向 UE发送用于指示 UE删除特殊小区的删除命令。
32、 如权利要求 31 所述的基站, 其特征在于, 接口模块还用于向 UE发送用于指示 UE删除特殊小区的删除命令之前, 向 UE发送去激活命令, 指示 UE去激活与特殊小区相 同 TDD配置的服务小区; 或者
删除命令包括去激活指示信息,用于指示 UE去激活与特殊小区相同 TDD配置的服务 小区。
33、 如权利要求 31所述的基站, 其特征在于, 删除命令包括删除服务小区指示信息, 用于指示 UE删除与特殊小区相同 TDD配置的服务小区。
34、 如权利要求 31至 33中任一项所述的基站, 其特征在于, 删除命令为专门用于删 除特殊小区的删除命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的切换命令; 或者
删除命令为带有表示删除特殊小区的删除指示信息的无线资源控制 RRC 连接重配消 息。
35、 一种基站, 其特征在于, 包括:
控制模块, 用于确定需增加的特殊小区;
接口模块, 用于向 UE发送用于指示 UE增加特殊小区的增加命令。
36、 如权利要求 35 所述的基站, 其特征在于, 新增的特殊小区的初始状态为去激活 态或激活态。
37、 如权利要求 36 所述的基站, 其特征在于, 当新增的特殊小区的初始状态为去激 活态时, 接口模块还用于向 UE发送用于激活特殊小区的激活命令。
38、 如权利要求 35所述的基站, 其特征在于, 当 UE增加与源特殊小区相同 TDD配 置的服务小区时, 增加命令包括增加服务小区指示信息, 用于指示 UE增加服务小区。
39、 如权利要求 35至 38中任一项所述的基站, 其特征在于, 增加命令为专门用于增 加特殊小区的增加命令; 或者
增加命令为带有表示增加特殊小区的增加指示信息的切换命令; 或者
增加命令为带有表示增加特殊小区的增加指示信息的无线资源控制 RRC 连接重配消 息。
40、 如权利要求 35所述的基站, 其特征在于, 所述增加命令与用于指示 UE删除特殊 小区的删除命令为同一条命令或为不同的命令。
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101541029A (zh) * 2009-04-27 2009-09-23 中兴通讯股份有限公司 载波聚合情况下测量参考信号的发送方法和装置
CN101594683A (zh) * 2009-06-19 2009-12-02 中兴通讯股份有限公司 一种载波聚合时的信号传输方法及系统
WO2010148930A1 (zh) * 2010-01-15 2010-12-29 中兴通讯股份有限公司 载波聚合系统中非连续接收活动时间的确定方法及装置
CN102014480A (zh) * 2009-10-30 2011-04-13 大唐移动通信设备有限公司 一种上行同步处理方法及设备
CN102196596A (zh) * 2011-04-19 2011-09-21 电信科学技术研究院 一种在多载波系统中更改小区的方法及装置

Family Cites Families (2)

* 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 多频点系统中获得配对小区信息的方法及装置
CN101527882A (zh) * 2009-03-10 2009-09-09 北京交通大学 一种在动态组呼区域内实时增加和删除小区的方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101541029A (zh) * 2009-04-27 2009-09-23 中兴通讯股份有限公司 载波聚合情况下测量参考信号的发送方法和装置
CN101594683A (zh) * 2009-06-19 2009-12-02 中兴通讯股份有限公司 一种载波聚合时的信号传输方法及系统
CN102014480A (zh) * 2009-10-30 2011-04-13 大唐移动通信设备有限公司 一种上行同步处理方法及设备
WO2010148930A1 (zh) * 2010-01-15 2010-12-29 中兴通讯股份有限公司 载波聚合系统中非连续接收活动时间的确定方法及装置
CN102196596A (zh) * 2011-04-19 2011-09-21 电信科学技术研究院 一种在多载波系统中更改小区的方法及装置

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