Cell activation or deactivation method and apparatus

Abstract

In an embodiment of the present invention, a method and an apparatus for cell activation or deactivation are provided, the method including: a terminal device receiving a cell change command transmitted by a network device; and the terminal device activating or deactivating a cell indicated in or associated with the cell change command based on a condition for cell activation or deactivation. According to the embodiment of the present invention, when the terminal device receives the cell change command, or when it receives an (enhanced) secondary cell activation or deactivation MAC CE, or based on the activation or deactivation state of the cell configured by RRC signaling, or based on the activation or deactivation state of a cell group in which the cell configured by RRC signaling is located, or based on a deactivation timer, the activation / deactivation state of the cell can be determined by activating or deactivating the cell indicated in or associated with the cell change command.

Claims

1. A device configured in a terminal device for activating or deactivating a cell, A receiver that receives cell switching commands transmitted by network devices, which include information indicating the index of candidate settings; and Includes a processor that activates or deactivates cells in a first cell group, including a target cell, based on conditions relating to cell activation or deactivation, The target cell corresponds to the target setting indicated by the information that indicates the index of the candidate setting, which is included in the cell switching command. The conditions relating to cell activation or deactivation include the active or inactive state of the second cell group in which the cell is located, as set by radio resource control signaling.

2. The apparatus according to claim 1, The conditions relating to cell activation or deactivation include the reception of the cell switching command.

3. The apparatus according to claim 1, The device includes the condition relating to cell activation or deactivation being received by a secondary cell activation / deactivation medium access control element or an enhanced secondary cell activation / deactivation medium access control element.

4. The apparatus according to claim 1, The conditions relating to cell activation or deactivation include the active or inactive state of a cell as set by wireless resource control signaling.

5. The apparatus according to claim 4, The aforementioned candidate settings include or do not include cell state information in the device.

6. The apparatus according to claim 5, When the candidate setting includes the cell state information, the state set by the wireless resource control signaling is the active state. The device wherein, when the candidate setting does not include the cell state information, the state set by the wireless resource control signaling is an inactive state.

7. The apparatus according to claim 1, The aforementioned candidate settings do not include the second cell group status information for the device.

8. The apparatus according to claim 1, When the candidate setting includes second cell group state information, the state set by the wireless resource control signaling is an inactive state. The device wherein, when the candidate setting does not include second cell group state information, the state set by the wireless resource control signaling is an active state.

9. The apparatus according to claim 1, The conditions relating to cell activation or deactivation include the state of the secondary cell deactivation timer. The terminal device is a device that activates or deactivates the cell based on the state of the secondary cell deactivation timer.

10. The apparatus according to claim 1, The processing unit activating the cell means that The uplink and downlink bandwidths, respectively, are activated by wireless resource control signaling or by the cell switching command; Activate the sounding reference signal transmission on the cell; Activate the channel status information reporting of the aforementioned cell; Activate monitoring of the physical downlink control channel of the aforementioned cell; Activate monitoring of the physical downlink control channel on the cell; Activate the physical uplink control channel transmission on the cell (if the physical uplink control channel transmission is configured); Start or restart the secondary cell deactivation timer associated with the aforementioned cell; Initialize a suspended and configured uplink grant of configured grant Type 1 associated with the cell (if such an uplink grant exists); Trigger a power headroom report; Triggers buffer status reporting; and Start a random access channel A device comprising at least one of the following.

11. The apparatus according to claim 1, The deactivation of the cell by the processor means that No sounding reference signal is transmitted on the aforementioned cell (unless the conditions are met); The channel status information of the aforementioned cell will not be reported (except when the conditions are met); The uplink shared channel is not transmitted on the aforementioned cell; Do not transmit random access channels on the aforementioned cell (unless the conditions are met); Without monitoring the physical downlink control channel on the aforementioned cell; The physical downlink control channel of the aforementioned cell is not monitored (except when the conditions are met); and The aforementioned cell does not transmit a physical uplink control channel. A device comprising at least one of the following.

12. The apparatus according to claim 11, The aforementioned conditions are, The aforementioned cell is included in the candidate settings carried by the cell switching command; The network device has instructed permission; and The network device is triggering it. A device comprising at least one of the following.

13. The apparatus according to claim 1, The processor activates the cell in the slot that received the activation instruction; or The processor is a device that activates the cell at a time T after the slot that received the activation instruction.

14. The apparatus according to claim 13, If the cell is a secondary cell, the time T includes at least the delay in applying timing advice on the special cell in the first cell group in which the cell is located. If the cell is a primary secondary cell, the time T includes at least the delay in applying timing advice on the cell. The apparatus wherein the time T does not include at least one of the processing delay for wireless resource control, the delay for obtaining a valid timing advice command, and the reporting time for channel status information.

15. The apparatus according to claim 1, The processor is a device that deactivates the cell in a slot that has received a deactivation instruction.

16. A device configured in network equipment for activating or deactivating cells, Includes a transmitter that sends a cell switching command containing information instructing terminal devices on the index of candidate settings, The cell switching command is used by the terminal device to activate or deactivate a cell in a first cell group, including a target cell, based on conditions relating to cell activation or deactivation. The target cell corresponds to the target setting indicated by the information that indicates the index of the candidate setting, which is included in the cell switching command. The conditions relating to cell activation or deactivation include the active or inactive state of the second cell group in which the cell is located, as set by radio resource control signaling.

17. The apparatus according to claim 16, The transmitter further transmits a wireless resource control signal to the terminal device. The aforementioned wireless resource control signaling sets the active or inactive state of a cell, or the active or inactive state of the second cell group in which the cell is located. The state of the cell or the state of the second cell group is a device used by the terminal device to activate or deactivate cells in the first cell group, which includes the target cell.

18. The apparatus according to claim 16, The aforementioned candidate settings do not include the second cell group status information for the device.

19. A communication system including network equipment and terminal equipment, The terminal device is configured to receive a cell switching command transmitted by the network device, which includes information indicating an index of candidate settings; and to activate or deactivate a cell in a first cell group, including a target cell, based on conditions relating to cell activation or deactivation, wherein the target cell corresponds to a target setting indicated by the information indicating an index of candidate settings included in the cell switching command, and / or The network device is configured to send the cell switching command to the terminal device, the cell switching command is used by the terminal device to activate or deactivate a cell in a first cell group including the target cell based on the conditions relating to cell activation or deactivation, the target cell corresponds to a target setting indicated by the information indicating the index of the candidate setting included in the cell switching command, The conditions relating to cell activation or deactivation include the active or inactive state of the second cell group in which the cell is located, as set by radio resource control signaling, in a communication system.

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