Multi-SCell activation

Abstract

The embodiment of the invention relates to a device, method and device for activation of multiple SCells and a computer readable storage medium. In an example embodiment, a terminal device receives, from a network device, an instruction to activate a plurality of secondary cells, the plurality of secondary cells including a Physical Uplink Control Channel (PUCCH) secondary cell. The PUCCH secondary cell is configured with a PUCCH. The terminal device then determines, from the plurality of secondary cells, one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell. Further, the terminal device prioritizes activation of one or more secondary cells associated with the primary cell over activation of one or more secondary cells associated with the PUCCH secondary cell.

Description

Technical Field

[0001] The exemplary embodiments of the present disclosure generally relate to the field of communications, and in particular to devices, methods, apparatuses, and computer-readable storage media for activating multiple secondary cells (SCells). This also applies to the case where the primary secondary SCell (PSCell) is one of multiple SCells. Background Art

[0002] In certain cases where the physical uplink control channel (PUCCH) on the primary cell (PCell) is overloaded, additional PUCCH resources can be configured on a certain SCell (referred to as a PUCCH SCell). In these cases, some SCells may be configured to use PUCCH or uplink transmissions on the PCell, while other SCells may be configured to use PUCCH or uplink transmissions on the PUCCH SCell. Therefore, it can also be considered that some SCells are associated with the PCell, while other SCells are associated with the PUCCH SCell. For example, for power consumption, multiple SCells may be deactivated. When multiple SCells are instructed to be activated, if cell detection is required for some of the multiple SCells, the SCells will contend equally during the cell detection phase. However, different activation orders of multiple SCells may result in different activation delays. Therefore, in addition to other unresolved issues, how to determine the appropriate activation order for multiple SCells remains an unresolved issue to be resolved. Summary of the invention

[0003] In general, example embodiments of the present disclosure provide devices, methods, apparatuses, and computer-readable storage media for activation of multiple SCells.

[0004] In a first aspect, a terminal device is provided, the terminal device comprising at least one processor and at least one memory comprising computer program code. The at least one memory and the computer program code are configured to, together with the at least one processor, enable the terminal device to receive instructions for activating multiple secondary cells from a network device, the multiple secondary cells comprising a physical uplink control channel PUCCH secondary cell. The PUCCH secondary cell is configured with a PUCCH. Then, the terminal device is caused to determine one or more secondary cells associated with a primary cell and one or more secondary cells associated with a PUCCH secondary cell from the multiple secondary cells. In addition, the terminal device is caused to prioritize the activation of one or more secondary cells associated with the primary cell over the activation of one or more secondary cells associated with the PUCCH secondary cell.

[0005] In a second aspect, a network device is provided, the network device comprising at least one processor and at least one memory comprising computer program code. The at least one memory and the computer program code are configured to, together with the at least one processor, cause the network device to send an indication associated with a plurality of secondary cells to a terminal device, the plurality of secondary cells comprising a physical uplink control channel PUCCH secondary cell, the PUCCH secondary cell being configured with a PUCCH, the indication indicating that one or more of the plurality of secondary cells are associated with a primary cell and / or one or more of the plurality of secondary cells are associated with a PUCCH secondary cell.

[0006] In a third aspect, a method is provided. In the method, a terminal device receives an instruction from a network device to activate multiple secondary cells, the multiple secondary cells including a physical uplink control channel PUCCH secondary cell. The PUCCH secondary cell is configured with a PUCCH. Then, the terminal device determines one or more secondary cells associated with a primary cell and one or more secondary cells associated with the PUCCH secondary cell from the multiple secondary cells. In addition, the terminal device prioritizes the activation of one or more secondary cells associated with the primary cell over the activation of one or more secondary cells associated with the PUCCH secondary cell.

[0007] In a fourth aspect, a method is provided. In the method, a network device sends an indication associated with a plurality of secondary cells to a terminal device, the plurality of secondary cells including a physical uplink control channel (PUCCH) secondary cell, the PUCCH secondary cell being configured with a PUCCH, the indication indicating that one or more of the plurality of secondary cells are associated with a primary cell and / or one or more of the plurality of secondary cells are associated with a PUCCH secondary cell.

[0008] In a fifth aspect, an apparatus is provided, the apparatus comprising means for performing the method according to the third aspect or the fourth aspect.

[0009] In a sixth aspect, a computer-readable storage medium comprising program instructions stored thereon is provided. The instructions, when executed by a processor of a device, cause the device to perform the method according to the third aspect or the fourth aspect.

[0010] It should be understood that the invention summary is not intended to identify the key or essential features of the exemplary embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Some example embodiments will now be described with reference to the accompanying drawings, in which:

[0012] Figure 1 An example multi-SCell activation process with a cell detection phase is shown;

[0013] Figure 2 An example environment is shown in which example embodiments of the present disclosure may be implemented;

[0014] Figure 3 shows a signaling flow between a terminal device and a network device according to some example embodiments of the present disclosure;

[0015] Figure 4 A flowchart showing an example process for multi-SCell activation according to some example embodiments of the present disclosure is shown;

[0016] Figure 5 A flowchart illustrating an example method according to some example embodiments of the present disclosure;

[0017] Figure 6 A flowchart illustrating an example method according to some other example embodiments of the present disclosure; and

[0018] Figure 7 A simplified block diagram of a device suitable for implementing an example embodiment of the present disclosure is shown.

[0019] Throughout the drawings, the same or similar reference numerals refer to the same or similar elements. DETAILED DESCRIPTION

[0020] The principle of the present disclosure will now be described with reference to some example embodiments. It should be understood that these example embodiments are described only to illustrate and help those skilled in the art understand and implement the present disclosure, and do not represent any limitation on the scope of the present disclosure. The disclosure described herein can be implemented in various other ways except the way described below.

[0021] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

[0022] As used in this article, the term "network device" refers to a device via which a service can be provided to a terminal device in a communication network. As an example, a network device may include a base station. As used in this article, the term "base station" (BS) refers to a network device via which a service can be provided to a terminal device in a communication network. A base station may include any suitable device via which a terminal device or UE can access a communication network. Examples of base stations include relay stations, access points (APs), transmission points (TRPs), node Bs (NodeBs or NBs), evolved NodeBs (eNodeBs or eNBs), new radio (NR) NodeBs (gNBs), remote radio modules (RRUs), radio headers (RHs), remote radio heads (RRHs), low-power nodes (such as femto, micro), etc.

[0023] As used herein, the term "terminal device" or "user equipment" (UE) refers to any terminal device capable of wireless communication with each other or with a base station. Communication may involve the transmission and / or reception of wireless signals using electromagnetic signals, radio waves, infrared signals, and / or other types of signals suitable for transmitting information over the air. In some example embodiments, the UE may be configured to transmit and / or receive information without direct human interaction. For example, when triggered by an internal or external event, or in response to a request from the network side, the UE may transmit information to the base station according to a predetermined schedule.

[0024] Examples of user equipment include, but are not limited to, smartphones, wireless tablets, laptop embedded equipment (LEE), laptop mounted equipment (LME), wireless customer premises equipment (CPE), sensors, metering equipment, personal wearable devices (such as watches), and / or vehicles capable of communication. For the purpose of discussion, some example embodiments will be described with reference to UE as an example of a terminal device, and the terms "terminal device" and "user equipment" (UE) may be used interchangeably in the context of the present disclosure.

[0025] As used herein, the term "circuitry" may refer to one, more, or all of the following:

[0026] (a) a pure hardware circuit implementation (such as an implementation using only analog and / or digital circuitry), and

[0027] (b) a combination of hardware circuitry and software such as (where applicable):

[0028] (i) a combination of analog and / or digital hardware circuits and software / firmware, and

[0029] (ii) any portion of a hardware processor(s) with software (including digital signal processor(s), software and memory(s)) that work together to enable a device (such as a mobile phone or server) to perform various functions, and

[0030] (c) Hardware circuit(s) and / or processor(s), such as microprocessor(s) or portion(s) of microprocessor(s), which requires software (e.g., firmware)

[0031] The software can be saved when no operation is needed.

[0032] This definition of circuitry applies to all uses of the term in this application, including in any claims. As another example, as used in this application, the term circuitry also covers an implementation of only a hardware circuit or processor (or multiple processors) or a portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. For example, if applicable to a particular claim element, the term circuitry also covers a baseband integrated circuit or processor integrated circuit for a mobile device, or a similar integrated circuit in a server, cellular base station, or other computing or base station.

[0033] As used herein, the singular forms "a", "an", and "the" also include the plural forms, unless the context clearly dictates otherwise. The term "including" and its variations should be understood as open terms, meaning "including but not limited to". The term "based on" should be understood as "based at least in part on". The terms "one embodiment" and "embodiment" should be understood as "at least one embodiment". The term "another embodiment" should be understood as "at least one other embodiment". Other explicit and implicit definitions may be included below.

[0034] As used herein, the terms "first", "second", etc. may be used to describe various elements, which should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the exemplary embodiments. As used herein, the term "and / or" includes any and all combinations of one or more of the listed terms.

[0035] In Long Term Evolution (LTE) and Fifth Generation (5G) New Radio (NR), SCells can be activated or deactivated. The transition between the activated and deactivated states is mainly based on a Media Access Control (MAC) Control Element (CE) command from the network, such as a SCell activation / deactivation command. It can also be triggered by an indication based on a Radio Resource Control (RRC) message or downlink control information (DCI). When the UE activates a deactivated SCell, it needs to do so within the activation delay Tactivation_time to transition from the deactivated state to the activated state.

[0036] In the 3rd Generation Partnership Project (3GPP), there is some discussion about the delay requirements within which a UE will be able to activate a deactivated downlink (DL) SCell, e.g. Where T HARQ is the transmission time for the MAC CE command confirmation, T CSI_Reporting is the time used for channel state information (CSI) reporting.

[0037] In addition, in 3GPP Release 16 (Rel-16) and Release 17 (Rel-17), there are some discussions about SCell activation delay for activating multiple downlink SCells, one of which is the PUCCH SCell. For example, in Rel-16, SCell activation delay requirements with multiple DL SCells have been defined, assuming that multiple SCells are activated in a single MAC command. Delay spread due to interruptions between multiple activated SCells has been considered, because the activation of one SCell may be interrupted or delayed by the start-up of other parallel activated SCells because cell detection in the corresponding SCells (if necessary), including, for example, RF re-tuning and / or adaptive gain control (AGC) stabilization, needs to be processed sequentially. In Rel-16, all activated SCells have the same priority for performing cell detection, so in the worst case, the activation of one SCell may be delayed by all other activated SCells.

[0038] It is also discussed that the “cell detection time” in the delay spread caused by the searcher limitation is “1*T rs ", and for an unknown SCell in frequency range 2 (FR2) it is "8*T rs For example, if N1 parallel SCells to be activated are unknown and belong to FR1 when cell detection is required, the activation delay will be extended by N1*T rs In this case, the total activation time can be expressed as follows:

[0039] T activation_time_multiple_scells

[0040] - In the case where semi-persistent CSI-RS is used for CSI reporting, it can be expressed as:

[0041] 6ms+T FirstSSB_MAX_multiple_scells +T SMTC_MAX_multiple_scells +T rs *N 1 +T L1-RSRP，measure +T L1-RSRP，report +T HARQ +max(T uncertainty_MAC_multiple_scells +T FineTiming +2ms, T uncertainty_SP_multiple_scells ),

[0042] - In the case where periodic CSI-RS is used for CSI reporting, it can be expressed as:

[0043] 3ms+T FirstSSB_MAX_multiple_scells +T SMTC_MAX_multiple_scells +T rs *N 1 +T L1-RSRP，measure +T L1-RSRP，report +max(T HARQ +T uncertainty_MAC_multiple_scells +5ms+T FineTiming , T uncertainty_RRC_multiple_scells +T RRC_delay ).

[0044] -Otherwise, it can be expressed as:

[0045] T FirstSSB_MAX_multiple_scells +T SMTC_MAX_multiple_scells +T rs *N 1 +T rs +5mS

[0046] For example, if N2 parallel SCells to be activated are unknown and belong to FR2 when cell detection is required, the activation delay can be further extended by N2*8*T rs , because beam scanning on one SCell will require 8*T rs This will significantly increase the activation delay for the FR2SCell. In this case, the total activation time can be expressed as:

[0047] (T FirstSSB_MAX +T SMTC_MAX )+T rs *N 1 +8*T rs *N 2 +T rs +5ms

[0048] As described above, when a PUCCH SCell is activated along with other SCells, for example, due to PUCCH overload on the PCell or other reasons, the network may activate additional PUCCH resources on the PUCCH SCell. Among the other SCells to be activated, some SCells may be configured to use PUCCH on the PCell, while other SCells may be configured to use PUCCH on the PUCCH SCell.

[0049] All SCells including the PUCCH SCell will contend equally during the cell detection phase. For SCells associated with the PCell, the UE is able to send valid CSI reports on the PCell at the end of activation. However, for SCells associated with the PUCCH SCell, even if they succeed in the cell detection phase, the UE must wait until the activation of the PUCCH SCell and the uplink (UL) on the PUCCH SCell, because the CSI report needs to be sent on the PUCCH SCell as the end point of the PUCCH SCell activation. Therefore, for SCells associated with the PUCCH SCell, preemption during the cell detection phase does not help complete the activation of the SCell, and at the same time it will further unnecessarily extend the activation delay of other SCells associated with the PCell.

[0050] In addition, it has been proposed to prioritize PUCCH SCell activation over other activated SCells. This helps to minimize the activation delay of PUCCH SCell, however, the above problem is still valid on other SCells associated with PCell.

[0051] Figure 1 An example multi-SCell activation process with a cell detection phase is shown. Figure 1 As shown, SCell 101 and PCell 103 are in the same (timing advance group) TAG1, and SCell 105 and PUCCH SCell 107 are in the same TAG2. It is assumed that all activated SCells are unknown, so cell detection needs to be performed on each SCell during activation.

[0052] When Figure 1When multiple SCells are activated as shown, PUCCH SCell 107 is prioritized in the cell detection phase, and the UE can continue with beam measurements and random access to acquire uplink timing. Then, when competing with SCell 103, SCell 105 succeeds in the cell detection phase and is ready to transmit CSI reports. However, since SCell 105 is in the same TAG as PUCCH SCell 107, it cannot transmit CSI reports because the uplink of PUCCH SCell 107 is not activated. Therefore, the CSI report of SCell 105 is delayed until the activation of PUCCH SCell 107 is completed. At the same time, due to the interruption from PUCCH SCell 107 and SCell 105, the activation of SCell 101 is extended by 2*T rs (for FR1) or 2*8*T rs (For FR2), otherwise, if it succeeds in the cell detection phase when contending with SCell 105 and PUCCH SCell 107, it can be activated before SCell 105.

[0053] It can be seen that an inappropriate activation order of activation of multiple SCells may result in additional activation delay. Therefore, it is necessary to avoid unnecessary delay extension, especially from SCells associated with PUCCH SCells. In addition, so far, there is no effective method to determine the appropriate activation order of multiple SCells to further improve transmission efficiency.

[0054] An exemplary embodiment of the present disclosure provides a scheme for activating multiple SCells. With this scheme, a device such as a UE receives an instruction for activating multiple SCells including a PUCCH SCell from another device such as a network device. The PUCCH SCell is configured with a PUCCH. Then, the UE determines one or more SCells associated with the PCell and one or more SCells associated with the PUCCH SCell from the multiple SCells. In addition, the UE prioritizes the activation of one or more SCells associated with the PCell over the activation of one or more SCells associated with the PUCCH SCell.

[0055] This solution reduces activation delay by avoiding unnecessary delay extension (especially from SCells associated with PUCCH SCells), thus improving transmission efficiency.

[0056] Figure 2 An example environment 200 is shown in which example embodiments of the present disclosure may be implemented.

[0057] Environment 200 (which may be part of a communication network) includes two devices 210 and 220 that communicate with each other or with other devices via each other.

[0058] Devices 210 and 220 may be implemented by any suitable device in a communication network. In some example embodiments, device 210 may be implemented by a terminal device, and device 220 may be implemented by a network device, or vice versa. In some other example embodiments, both devices 210 and 220 may be implemented by a terminal device or a network device. For discussion purposes only, in this example, a terminal device is used as an example of device 210, and a network device is used as an example of device 220.

[0059] It should be understood that two devices are shown in environment 200 for illustration purposes only and do not impose any limitation on the scope of the present disclosure. In some example embodiments, environment 200 may include another device that communicates with device 210 and device 220. In some example embodiments, device 210 may be connected to multiple cells including a PCell and one or more SCells under the control of device 220.

[0060] Communications in environment 100 may follow any suitable communications standards or protocols that already exist or will be developed in the future, such as Universal Mobile Telecommunications System (UMTS), Long Term Evolution (LTE), Advanced LTE (LTE-A), Fifth Generation (5G) New Radio (NR), Wireless Fidelity (Wi-Fi), and Worldwide Interoperability for Microwave Access (WiMAX) standards, and employ any suitable communications technology, including, for example, Multiple Input Multiple Output (MIMO), Orthogonal Frequency Division Multiplexing (OFDM), Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), Code Division Multiplexing (CDM), Bluetooth, ZigBee, as well as Machine Type Communications (MTC), Enhanced Mobile Broadband (eMBB), Massive Machine Type Communications (mMTC), Ultra-Reliable Low Latency Communications (URLLC), Carrier Aggregation (CA), Dual Connectivity (DC), and New Radio License-Unlicensed (NR-U) technologies.

[0061] Figure 3 1 shows a flow chart of an example method 300 according to some example embodiments of the present disclosure. The method 300 may be performed as follows: Figure 2 The device 210 shown is implemented. For the purpose of discussion, reference will be made to Figure 2 Method 300 is described.

[0062] like Figure 3As shown, the device 220 sends (305) an instruction for activating multiple SCells including the PUCCH SCell to the device 210. The PUCCH SCell is configured with a PUCCH. For example, the instruction may be carried in a MAC command, RRC signaling, or some other signaling.

[0063] Then, the device 210 determines ( 310 ) one or more SCells associated with the PCell and one or more SCells associated with the PUCCH SCell from among the plurality of SCells.

[0064] In some example embodiments, the device 210 may determine whether cell detection is required for multiple SCells to be activated. For example, if the SCell is unknown in FR1 and is not adjacent to any serving cell, or if the SCell is unknown in FR2 and the first cell is to be activated in the frequency band, cell detection is required. For SCells that require cell detection, the device 210 may group these SCells based on their association with the PCell and the PUCCH SCell. For example, the device 210 may determine that cell detection is required to activate one or more SCells associated with the PCell and one or more SCells associated with the PUCCH SCell. Then, on this basis, the device 210 may determine one or more SCells associated with the PCell and one or more SCells associated with the PUCCH SCell.

[0065] In some example embodiments, the device 210 may determine that a SCell is associated with a PCell or a PUCCH SCell based on the timing advance group configuration. For example, if the device 210 determines that the SCell is in the same timing advance group as the PCell, it may determine that the SCell is associated with the PCell. As an example, if the device 210 determines that the tag id of the SCell is the same as the tag id of the PCell, it may determine that the SCell is associated with the PCell. Similarly, for example, if the device 210 determines that the SCell is in the same timing advance group as the PUCCH SCell, it may determine that the SCell is associated with the PUCCH SCell. As an example, if the device 210 determines that the tag id of the SCell is the same as the tag id of the PUCCH SCell, it may determine that the SCell is associated with the PUCCH SCell.

[0066] In some example embodiments, device 210 may determine that a SCell is associated with a PCell or a PUCCH SCell based on the CSI reporting resource configuration. For example, if device 210 determines, for example based on the CSI reporting parameters, that CSI reporting resources for the SCell are configured on the PCell, it may determine that the SCell is associated with the PCell. Similarly, for example, if device 210 determines, for example based on the CSI reporting parameters, that CSI reporting resources for the SCell are configured on the PUCCH SCell, it may determine that the SCell is associated with the PUCCH SCell.

[0067] In some example embodiments, the device 210 may receive an indication that one or more of the multiple SCells are associated with the PCell and / or one or more of the multiple SCells are associated with the PUCCH SCell. In this case, the device 210 may determine that a SCell is associated with the PCell or the PUCCH SCell based on the indication. For example, the above indication and the instruction for activating multiple SCells may be carried in the same signaling (e.g., a MAC command). Alternatively or additionally, the indication may be sent from the device 120, for example, in a serving cell configuration. As another example, the indication may include an instruction for activating multiple secondary cells.

[0068] In some example embodiments, the device 210 may determine that a SCell is associated with a PCell or a PUCCH SCell based on the configuration information. For example, if the device 210 determines that the SCell is co-located with the PCell, it may determine that the SCell is associated with the PCell. Similarly, if the device 210 determines that the SCell is co-located with the PUCCH SCell, it may determine that the SCell is associated with the PUCCH SCell. The configuration information may be determined based on the reception timing difference between the SCell and the PCell or the PUCCH SCell at the UE and / or based on network information. For example, if the reception timing difference between the SCell and the PCell is less than a threshold, the device 210 determines that the SCell is co-located with the PCell. Similarly, if the reception timing difference between the SCell and the PUCCH SCell is less than a threshold, the device 210 determines that the SCell is co-located with the PUCCH SCell.

[0069] In some example embodiments, device 210 may determine that a SCell is associated with a PCell or a PUCCH SCell based on a carrier aggregation configuration. For example, if device 210 determines that a SCell is intra-band or in the same frequency band as a PCell based on a carrier aggregation configuration, it may determine that the SCell is associated with a PCell. Similarly, if device 210 determines that a SCell is intra-band with a PUCCH SCell based on a carrier aggregation configuration, it may determine that the SCell is associated with a PUCCH SCell.

[0070] In some example embodiments, if the device 210 determines that the SCell is associated with the PCell, the PUCCH or uplink transmission for the SCell will be sent on the PCell after the SCell is activated. If the device 210 determines that the SCell is associated with the PUCCH SCell, the PUCCH or uplink transmission for the SCell will be sent on the PUCCH SCell after the SCell is activated.

[0071] like Figure 3 As shown, the device 210 prioritizes (315) activation of one or more SCells associated with the PCell over activation of one or more SCells associated with the PUCCH SCell.

[0072] In some example embodiments, the device 210 may coordinate activation of the PUCCH SCell with activation of one or more SCells associated with the PCell. In this case, the device 210 may first activate the PUCCH SCell, then activate one or more SCells associated with the PCell, and finally activate one or more SCells associated with the PUCCH SCell. Cell detection of the one or more SCells associated with the PUCCH SCell may be performed in parallel with subsequent steps of PUCCH SCell activation (e.g., beam measurement and / or random access procedures on the PUCCH SCell).

[0073] In some example embodiments, the device 210 may prioritize activation of one or more SCells associated with the PCell over activation of the PUCCH SCell, and the device 210 may prioritize activation of the PUCCH SCell over activation of one or more SCells associated with the PUCCH SCell. In this case, the device 210 may first activate one or more SCells associated with the PCell, then activate the PUCCH SCell, and finally activate one or more SCells associated with the PUCCH SCell. For example, after cell detection of the PUCCH SCell, the device 210 may activate one or more SCells associated with the PUCCH SCell in parallel with beam measurement and / or random access procedures on the PUCCH SCell. In this case, CSI reports of the PUCCH SCell and the one or more SCells associated with the PUCCH SCell may be sent on the PUCCH SCell at the end of PUCCH SCell activation.

[0074] In some example embodiments, the activation delay for activating one or more SCells associated with the PCell may be based solely on the number of one or more SCells associated with the PCell, and the activation delay for activating one or more SCells associated with the PUCCH SCell may be based on: the number of one or more SCells associated with the PCell, the number of one or more SCells associated with the PUCCH SCell, and the activation delay for activating the PUCCH SCell.

[0075] For example, the activation delay for activating one or more SCells associated with a PCell may be extended by T rs *X1. As an example, the activation delay for activating one or more SCells associated with a PCell may be expressed as follows:

[0076] When semi-persistent CSI-RS is used for CSI reporting, it can be expressed as:

[0077] 6ms+T FirstSSB_XAX_multiple_scells +T SMTC_MAx_multiple_scells +T rs *X 1 +8*T rs *Y 1 +T L1-RSRP，measure +T L1-RSRP，report +T HARQ +max(T uncertainty_MAC_multiple_scells +T FineTiming +2ms, T uncertainty_SP_multiple_scells ),

[0078] When periodic CSI-RS is used for CSI reporting, it can be expressed as:

[0079] 3ms+T FirstSSB_MAX_multiple_scells +T SMTC_MAX_multiple_scells +T rs *X 1 +8*T rs *Y 1 +T L1-RSRP，measure +I L1-RSRP，report +max(T HARQ +I uncertainty_MAC_multiple_scells +5ms+T FineTiming , T uncertainty_RRC_multiple_scells +T RRC_delay ).

[0080] Otherwise, it can be expressed as:

[0081] T FirstSSB_MAX_multiple_scells +T sMTC_MAX_multiple_scells +T rs *X 1 +8*T rs *Y 1 +T rs +5ms

[0082] Where T rs is the cell detection time for one FR1 SCell, 8*T rs is the cell detection time for one FR2 SCell, X 1 is the number of unknown SCells to be activated in parallel FR1 that need to be detected in cells associated with PCell, X 2 is the number of parallel FR1 unknown SCells to be activated that require cell detection associated with the PUCCH SCell, Y 1 is the number of parallel FR2 unknown SCells to be activated associated with the PCell, Y 2 is the number of parallel FR2 unknown SCells to be activated that are associated with the PUCCH SCell.

[0083] And, the activation delay for activating one or more SCells associated with the PUCCH SCell can be expressed as:

[0084] Max(T delay_PUCCH_SCell , T activation_time +T rs *(X 1 +X 2 )+8*T rs *(Y 1 +Y 2 ))

[0085] Where T delay_PUCCH SCell is the activation time for activating the PUCCH SCell, T activation_time It is the activation time used to activate a DL SCell.

[0086] And, the activation delay for activating one or more SCells associated with the PCell can be expressed as:

[0087] T actvaton_time +T rs *X 1 +8*T rs *Y 1

[0088] Where T delay_PUCCH SCell is the activation time for activating the PUCCH SCell, T activation_time It is the activation time used to activate a DL SCell.

[0089] For example, the above principle may be applicable to the case where the PUCCH SCell to be activated is in the same FR as the PCell. Otherwise, such activation priority determination may not be applied.

[0090] In this way, the activation of the SCell associated with the PCell can be completed in advance without interrupting the SCell associated with the PUCCH SCell. In this way, the transmission efficiency can be improved.

[0091] It should be understood that PSCell activation can in many ways reflect the same challenges and solutions described for the case where PUCCH SCell is activated with other SCells. Therefore, the problems and solutions described for PUCCH SCell activation with other SCells can also be applied to PSCell activation when activated with other SCells.

[0092] Figure 4 A flow chart of an example process 400 for multi-SCell activation according to some example embodiments of the present disclosure is shown. In this example, the device 210 is implemented by a UE 401. The SCell 403 is associated with the PCell 405, and the SCell 407 is associated with the PUCCH SCell 409.

[0093] At 410, UE 410 is configured in connected mode with SCell 403, PCell 405, SCell 407 and PUCCH SCell 409. PCell 405 is activated, and SCells 403 and 407 and PUCCH SCell 409 are deactivated. It is assumed that all SCells are unknown, ie, cell detection is required.

[0094] At 412 , UE 410 receives a serving cell configuration, which may indicate, for example, a timing advance group and / or CSI reporting resources and other configuration information. At 414 , UE 410 receives an activation command for activating SCells 403 and 407 and PUCCH SCell 409 .

[0095] As an example, in the serving cell configuration, the network may indicate that the SCell 403 is associated with the PCell 405 on the PUCCH and the SCell 407 is associated with the PUCCH SCell 409. Alternatively or additionally, the UE 410 may determine the PUCCH association based on the TAG or CSI reporting resource configuration, i.e., whether the SCell is associated with the PCell 405 or the PUCCH SCell 409. Then, the UE 401 may activate the SCell based on the PUCCH association.

[0096] At 416, the activation of the PUCCH SCell 409 is started first. Downlink synchronization and cell detection of the PUCCH SCell 409 are performed.

[0097] Then, at 418, activation of the SCell 403 is started. Downlink synchronization and cell detection of the SCell 403 are performed. At 420, a CSI report of the SCell 403 is sent on the PCell 405. Thus, activation of the SCell 403 is completed.

[0098] At 422, activation of SCell 407 begins. Downlink synchronization and cell detection of SCell 407 are performed. At 424, if PUCCH SCell 409 does not have a valid TA, contention-free random access is performed. For example, after cell detection on PUCCH SCell 409, UE 401 can continue beam measurement and / or random access procedures in parallel with cell detection on other SCells. Then, at 426, CSI reports of SCell 407 and PUCCH SCell 409 are sent on PUCCH SCell 409. Therefore, activation of SCell 407 and PUCCH SCell 409 is completed.

[0099] References Figures 2 to 3 All operations and features described are equally applicable to process 400 and have similar effects. For simplicity, details will be omitted.

[0100] Figure 5 1 shows a flow chart of an example method 500 according to some example embodiments of the present disclosure. The method 500 may be performed as follows: Figure 2 The device 210 shown is implemented. For the purpose of discussion, reference will be made to Figure 2 Method 500 is described.

[0101] like Figure 5 As shown, at box 510, the device 210 receives an instruction for activating multiple secondary cells from the device 220, the multiple secondary cells including a physical uplink control channel PUCCH secondary cell, the PUCCH secondary cell being configured with a PUCCH. At box 520, the device 210 determines one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell from the multiple secondary cells. At box 530, the device 210 prioritizes the activation of the one or more secondary cells associated with the primary cell over the activation of the one or more secondary cells associated with the PUCCH secondary cell.

[0102] In some example embodiments, device 210 may determine that cell detection is required for activating one or more secondary cells associated with a primary cell and one or more secondary cells associated with a PUCCH secondary cell.

[0103] In some example embodiments, device 210 may determine that a secondary cell is associated with a primary cell based on at least one of the following: determining that the secondary cell is in the same timing advance group as the primary cell; determining that channel state information reporting resources for the secondary cell are configured on the primary cell; an indication from device 220 indicating that the secondary cell is associated with the primary cell; determining that the secondary cell is co-located with the primary cell; or determining that the secondary cell is in-band with the primary cell based on a carrier aggregation configuration.

[0104] In some example embodiments, based on determining that the secondary cell is associated with the primary cell, uplink transmissions of the secondary cell may be sent on the primary cell after the secondary cell is activated.

[0105] In some example embodiments, device 210 may determine that a secondary cell is associated with a PUCCH secondary cell based on at least one of the following: determining that the secondary cell and the PUCCH secondary cell are in the same timing advance group; determining that channel state information reporting resources for the secondary cell are configured on the PUCCH secondary cell; an indication from device 220 indicating that the secondary cell is associated with the PUCCH secondary cell; determining that the secondary cell is co-located with the PUCCH secondary cell; or determining that the secondary cell is in-band with the PUCCH secondary cell based on carrier aggregation configuration.

[0106] In some example embodiments, based on determining that the secondary cell is determined to be associated with the PUCCH secondary cell, an uplink transmission for the secondary cell may be sent on the PUCCH secondary cell after the secondary cell is activated.

[0107] In some example embodiments, device 210 may prioritize activation of a PUCCH secondary cell over activation of one or more secondary cells associated with a primary cell.

[0108] In some example embodiments, device 210 may prioritize activation of one or more secondary cells associated with a primary cell over activation of a PUCCH secondary cell; and device 210 may prioritize activation of a PUCCH secondary cell over activation of one or more secondary cells associated with a PUCCH secondary cell.

[0109] In some example embodiments, the activation delay for activating one or more secondary cells associated with a primary cell is based only on the number of the one or more secondary cells associated with the primary cell; and the activation delay for activating one or more secondary cells associated with a PUCCH secondary cell is based on: the number of one or more secondary cells associated with the primary cell, the number of one or more secondary cells associated with the PUCCH secondary cell, and the activation delay for activating the PUCCH secondary cell.

[0110] References Figures 2 to 4 All operations and features described are also applicable to method 500 and have similar effects. For simplicity, details will be omitted.

[0111] Figure 6 600 according to some example embodiments of the present disclosure. The method 600 may be performed as follows: Figure 2 For the purpose of discussion, reference will be made to the device 220. Figure 2 Method 600 is described.

[0112] like Figure 6 As shown, in box 610, the device 220 sends an indication associated with multiple secondary cells to the terminal device 210, and the multiple secondary cells include a physical uplink control channel PUCCH secondary cell, and the PUCCH secondary cell is configured with PUCCH, and the indication indicates that one or more secondary cells among the multiple secondary cells are associated with the main cell and / or one or more secondary cells among the multiple secondary cells are associated with the PUCCH secondary cell.

[0113] In some example embodiments, the indication may include instructions to activate a plurality of secondary cells.

[0114] References Figures 2 to 4All operations and features described are also applicable to method 600 and have similar effects. For simplicity, details will be omitted.

[0115] Figure 7 is a simplified block diagram of a device 700 suitable for implementing an example embodiment of the present disclosure. The device 700 may be implemented as follows: Figure 2 The device 210 or the device 220 shown is implemented at or as a part thereof.

[0116] As shown, the device 700 includes a processor 710, a memory 720 coupled to the processor 710, a communication module 730 coupled to the processor 710, and a communication interface (not shown) coupled to the communication module 730. The memory 720 stores at least a program 740. The communication module 730 is used to perform bidirectional communication, for example, via multiple antennas. The communication interface can represent any interface required for communication.

[0117] Assume that the program 740 includes program instructions that, when executed by the associated processor 710, enable the device 700 to operate in accordance with the example embodiments of the present disclosure, as referred to herein. Figures 2 to 6 The example embodiments herein may be implemented by computer software that may be executed by the processor 710 of the device 700, or by hardware, or by a combination of software and hardware. The processor 710 may be configured to implement various example embodiments of the present disclosure.

[0118] The memory 720 may be of any type suitable for the local technology network and may be implemented using any suitable data storage technology, such as, as non-limiting examples, non-transitory computer-readable storage media, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. Although only one memory 720 is shown in the device 700, there may be several physically different memory modules in the device 700. The processor 710 may be of any type suitable for the local technology network and, as non-limiting examples, may include one or more of a general-purpose computer, a special-purpose computer, a microprocessor, a digital signal processor (DSP), and a processor based on a multi-core processor architecture. The device 700 may have multiple processors, such as a dedicated integrated circuit chip, which is time-dependent from a clock synchronized with a main processor.

[0119] When the device 700 acts as the device 210 or a part of the device 210, the processor 710 and the communication module 730 may cooperate to implement the above reference Figure 5 When the device 700 acts as the device 220 or a part of the device 220, the processor 710 and the communication module 730 can cooperate to implement the method 500 described above. Figure 6The method 600 described above is referred to as Figures 2 to 6 All operations and features described are equally applicable to the device 700 and have similar effects. For the sake of simplicity, the details will be omitted.

[0120] In general, various example embodiments of the present disclosure may be implemented using hardware or dedicated circuits, software, logic, or any combination thereof. Some aspects may be implemented using hardware, while other aspects may be implemented using firmware or software that may be executed by a controller, microprocessor, or other computing device. Although various aspects of the example embodiments of the present disclosure are illustrated and described as block diagrams, flow charts, or using some other graphical representations, it should be understood that, as non-limiting examples, the blocks, devices, systems, techniques, or methods described herein may be implemented using hardware, software, firmware, dedicated circuits or logic, general-purpose hardware or controllers or other computing devices, or some combination thereof.

[0121] The present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer-readable storage medium. The computer program product includes computer executable instructions, such as instructions included in a program module, which are executed in a device on a target real or virtual processor to perform the above reference Figures 5 and 6 Method 500 or 600 described. Typically, program modules include routines, programs, libraries, objects, classes, components, data structures, etc. that perform specific tasks or implement specific abstract data types. In various example embodiments, the functions of program modules can be combined or split between program modules as needed. The machine executable instructions of program modules can be executed in local or distributed devices. In distributed devices, program modules can be located in both local and remote storage media.

[0122] The program code for executing the method of the present disclosure can be written in any combination of one or more programming languages. These program codes can be provided to a processor or controller of a general-purpose computer, a special-purpose computer or other programmable data processing device so that the program code is implemented when executed by the processor or controller in the flow chart and / or the block diagram. The program code can be executed completely on the machine, partially on the machine, as an independent software package, partially on the machine and partially on a remote machine, or completely on a remote machine or server.

[0123] In the context of the present disclosure, computer program codes or related data may be carried by any suitable carrier to enable a device, apparatus or processor to perform various processes and operations as described above. Examples of carriers include signals and computer-readable media.

[0124] The computer readable medium can be a computer readable signal medium or a computer readable storage medium. The computer readable medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. More specific examples of computer readable storage media will include electrical connections with one or more wires, portable computer floppy disks, hard disks, random access memories (RAM), read-only memories (ROM), erasable programmable read-only memories (EPROM or flash memory), optical fibers, portable compact disk read-only memories (CD-ROM), digital versatile disks (DVD), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0125] In addition, although operations are described in a particular order, this should not be understood as requiring such operations to be performed in the particular order shown or in sequence or performing all of the operations shown to obtain the desired result. In some cases, multitasking and parallel processing may be advantageous. Similarly, although several specific implementation details are included in the above discussion, these should not be interpreted as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to a particular example embodiment. Certain features described in the context of a separate example embodiment may also be implemented in combination in a single embodiment. On the contrary, the various features described in the context of a single embodiment may also be implemented in multiple example embodiments individually or in any suitable sub-combination.

[0126] Although the present disclosure has been described in language specific to structural features and / or methodological acts, it should be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Instead, the specific features and acts described above are disclosed as example forms of implementing the claims.

[0127] Various example embodiments of these techniques have been described. In addition to or as an alternative to the above, the following examples are described. Features described in any of the following examples can be used with any other examples described herein.

[0128] In some aspects, a method includes: at a terminal device, receiving an instruction from a network device to activate multiple secondary cells, the multiple secondary cells including a physical uplink control channel (PUCCH) secondary cell, the PUCCH secondary cell being configured with a PUCCH; determining one or more secondary cells associated with a primary cell and one or more secondary cells associated with the PUCCH secondary cell from the multiple secondary cells; and prioritizing the activation of one or more secondary cells associated with the primary cell over the activation of one or more secondary cells associated with the PUCCH secondary cell.

[0129] In some example embodiments, the method further comprises determining that cell detection is required for activating one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell.

[0130] In some example embodiments, the method further includes: determining that a secondary cell is associated with a primary cell based on at least one of the following: determining that the secondary cell is in the same timing advance group as the primary cell; determining that channel state information reporting resources for the secondary cell are configured on the primary cell; an indication from a network device indicating that the secondary cell is associated with the primary cell; determining that the secondary cell is co-located with the primary cell; or determining that the secondary cell is in-band with the primary cell based on a carrier aggregation configuration.

[0131] In some example embodiments, based on determining that the secondary cell is associated with the primary cell, uplink transmissions for the secondary cell will be sent on the primary cell after the secondary cell is activated.

[0132] In some example embodiments, the method further includes: determining that a secondary cell is associated with a PUCCH secondary cell based on at least one of the following: determining that the secondary cell and the PUCCH secondary cell are in the same timing advance group; determining that channel state information reporting resources for the secondary cell are configured on the PUCCH secondary cell; an indication from a network device that the secondary cell is associated with the PUCCH secondary cell; determining that the secondary cell is co-located with the PUCCH secondary cell; or determining that the secondary cell is in-band with the PUCCH secondary cell based on a carrier aggregation configuration.

[0133] In some example embodiments, based on determining that the secondary cell is determined to be associated with the PUCCH secondary cell, an uplink transmission for the secondary cell will be sent on the PUCCH secondary cell after the secondary cell is activated.

[0134] In some example embodiments, the method further comprises prioritizing activation of the PUCCH secondary cell over activation of one or more secondary cells associated with the primary cell.

[0135] In some example embodiments, the method further comprises: prioritizing activation of one or more secondary cells associated with the primary cell over activation of the PUCCH secondary cell; and prioritizing activation of the PUCCH secondary cell over activation of one or more secondary cells associated with the PUCCH secondary cell.

[0136] In some example embodiments, the activation delay for activating one or more secondary cells associated with a primary cell is based only on the number of the one or more secondary cells associated with the primary cell; and the activation delay for activating one or more secondary cells associated with a PUCCH secondary cell is based on: the number of one or more secondary cells associated with the primary cell, the number of one or more secondary cells associated with the PUCCH secondary cell, and the activation delay for activating the PUCCH secondary cell.

[0137] In some aspects, a method includes: at a network device, sending an indication associated with multiple secondary cells to a terminal device, the multiple secondary cells including a physical uplink control channel PUCCH secondary cell, the PUCCH secondary cell being configured with a PUCCH, the indication indicating that one or more of the multiple secondary cells are associated with the primary cell and / or one or more of the multiple secondary cells are associated with the PUCCH secondary cell.

[0138] In some example embodiments, the indication comprises instructions for activating a plurality of secondary cells.

[0139] In some aspects, a terminal device includes: at least one processor; and at least one memory including computer program code; the at least one memory and the computer program code are configured to, together with the at least one processor, enable the terminal device to: receive instructions from a network device for activating multiple secondary cells, the multiple secondary cells including a physical uplink control channel PUCCH secondary cell, the PUCCH secondary cell being configured with a PUCCH; determine one or more secondary cells associated with a primary cell and one or more secondary cells associated with the PUCCH secondary cell from the multiple secondary cells; and prioritize the activation of one or more secondary cells associated with the primary cell over the activation of one or more secondary cells associated with the PUCCH secondary cell.

[0140] In some example embodiments, the terminal device is further caused to determine that cell detection is required for activating one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell.

[0141] In some example embodiments, the terminal device is further configured to: determine that a secondary cell is associated with a primary cell based on at least one of the following: determining that the secondary cell is in the same timing advance group as the primary cell; determining that channel state information reporting resources for the secondary cell are configured on the primary cell; an indication from a network device indicating that the secondary cell is associated with the primary cell; determining that the secondary cell is co-located with the primary cell; or determining that the secondary cell is in-band with the primary cell based on a carrier aggregation configuration.

[0142] In some example embodiments, based on determining that the secondary cell is associated with the primary cell, uplink transmissions for the secondary cell will be sent on the primary cell after the secondary cell is activated.

[0143] In some example embodiments, the terminal device is further configured to: determine that a secondary cell is associated with a PUCCH secondary cell based on at least one of the following: determining that the secondary cell and the PUCCH secondary cell are in the same timing advance group; determining that channel state information reporting resources for the secondary cell are configured on the PUCCH secondary cell; an indication from a network device that the secondary cell is associated with the PUCCH secondary cell; determining that the secondary cell is co-located with the PUCCH secondary cell; determining that either the secondary cell is in-band with the PUCCH secondary cell based on carrier aggregation configuration.

[0144] In some example embodiments, based on determining that the secondary cell is determined to be associated with the PUCCH secondary cell, an uplink transmission for the secondary cell will be sent on the PUCCH secondary cell after the secondary cell is activated.

[0145] In some example embodiments, the terminal device is further caused to prioritize activation of the PUCCH secondary cell over activation of one or more secondary cells associated with the primary cell.

[0146] In some example embodiments, the terminal device is further caused to: prioritize activation of one or more secondary cells associated with the primary cell over activation of the PUCCH secondary cell; and prioritize activation of the PUCCH secondary cell over activation of one or more secondary cells associated with the PUCCH secondary cell.

[0147] In some example embodiments, the activation delay for activating one or more secondary cells associated with a primary cell is based only on the number of the one or more secondary cells associated with the primary cell; and the activation delay for activating one or more secondary cells associated with a PUCCH secondary cell is based on: the number of one or more secondary cells associated with the primary cell, the number of one or more secondary cells associated with the PUCCH secondary cell, and the activation delay for activating the PUCCH secondary cell.

[0148] In some aspects, an apparatus includes: a component for receiving an instruction for activating multiple secondary cells from a network device, the multiple secondary cells including a physical uplink control channel (PUCCH) secondary cell, the PUCCH secondary cell being configured with a PUCCH; a component for determining one or more secondary cells associated with a primary cell and one or more secondary cells associated with the PUCCH secondary cell from the multiple secondary cells; and a component for prioritizing the activation of one or more secondary cells associated with the primary cell over the activation of one or more secondary cells associated with the PUCCH secondary cell.

[0149] In some example embodiments, the apparatus further comprises means for determining that cell detection is required for activating one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell.

[0150] In some example embodiments, the apparatus further includes: a component for determining that a secondary cell is associated with a primary cell based on at least one of the following: determining that the secondary cell is in the same timing advance group as the primary cell; determining that channel state information reporting resources for the secondary cell are configured on the primary cell; an indication from a network device indicating that the secondary cell is associated with the primary cell; determining that the secondary cell is co-located with the primary cell; or determining that the secondary cell is in-band with the primary cell based on a carrier aggregation configuration.

[0151] In some example embodiments, based on determining that the secondary cell is associated with the primary cell, uplink transmissions for the secondary cell will be sent on the primary cell after the secondary cell is activated.

[0152] In some example embodiments, the apparatus further includes: a component for determining that a secondary cell is associated with a PUCCH secondary cell based on at least one of the following: determining that the secondary cell and the PUCCH secondary cell are in the same timing advance group; determining that channel state information reporting resources for the secondary cell are configured on the PUCCH secondary cell; an indication from a network device indicating that the secondary cell is associated with the PUCCH secondary cell; determining that the secondary cell is co-located with the PUCCH secondary cell; or determining that the secondary cell is in-band with the PUCCH secondary cell based on a carrier aggregation configuration.

[0153] In some example embodiments, based on determining that the secondary cell is determined to be associated with the PUCCH secondary cell, an uplink transmission for the secondary cell will be sent on the PUCCH secondary cell after the secondary cell is activated.

[0154] In some example embodiments, the apparatus further comprises means for prioritizing activation of a PUCCH secondary cell over activation of one or more secondary cells associated with the primary cell.

[0155] In some example embodiments, the apparatus further comprises: means for prioritizing activation of one or more secondary cells associated with the primary cell over activation of the PUCCH secondary cell; and means for prioritizing activation of the PUCCH secondary cell over activation of one or more secondary cells associated with the PUCCH secondary cell.

[0156] In some example embodiments, the activation delay for activating one or more secondary cells associated with a primary cell is based only on the number of the one or more secondary cells associated with the primary cell; and the activation delay for activating one or more secondary cells associated with a PUCCH secondary cell is based on: the number of one or more secondary cells associated with the primary cell, the number of one or more secondary cells associated with the PUCCH secondary cell, and the activation delay for activating the PUCCH secondary cell.

[0157] In some aspects, an apparatus includes: for sending an indication associated with multiple secondary cells to a terminal device, the multiple secondary cells including a component of a physical uplink control channel PUCCH secondary cell, the PUCCH secondary cell being configured with a PUCCH, the indication indicating that one or more of the multiple secondary cells are associated with the primary cell and / or one or more of the multiple secondary cells are associated with the PUCCH secondary cell.

[0158] In some example embodiments, the indication comprises instructions for activating a plurality of secondary cells.

[0159] In some aspects, a computer-readable storage medium includes program instructions stored thereon, which, when executed by a processor of a device, cause the device to perform methods according to some example embodiments of the present disclosure.

Claims

1. A terminal device, comprising: at least one processor; as well as at least one memory including computer program code; The at least one memory and the computer program code are configured to, together with the at least one processor, cause the terminal device to: receiving, from a network device, an instruction for activating a plurality of secondary cells, the plurality of secondary cells including a physical uplink control channel (PUCCH) secondary cell, the PUCCH secondary cell being configured with a PUCCH; Determine, from the plurality of secondary cells, one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell; and Activation of the one or more secondary cells associated with the primary cell is prioritized over activation of the one or more secondary cells associated with the PUCCH secondary cell.

2. The terminal device according to claim 1, wherein the terminal device is further configured to: It is determined that cell detection is required for activating the one or more secondary cells associated with the primary cell and the one or more secondary cells associated with the PUCCH secondary cell.

3. The terminal device according to claim 1 or 2, wherein the terminal device is further configured to: Determining that a secondary cell is associated with the primary cell is based on at least one of the following: Determining that the secondary cell and the primary cell are in the same timing advance group; Determining that a channel state information reporting resource for the secondary cell is configured on the primary cell; an indication from a network device indicating that the secondary cell is associated with the primary cell; Determine that the secondary cell is co-located with the primary cell; or It is determined based on carrier aggregation configuration that the secondary cell and the primary cell are within a frequency band. 4 . The terminal device of claim 3 , wherein based on determining that the secondary cell is associated with the primary cell, uplink transmission for the secondary cell is to be sent on the primary cell after the secondary cell is activated.

5. The terminal device according to claim 1 or 2, wherein the terminal device is further configured to: A secondary cell is determined to be associated with the PUCCH secondary cell based on at least one of the following: Determining that the secondary cell and the PUCCH secondary cell are in the same timing advance group; Determining that a channel state information reporting resource for the secondary cell is configured on the PUCCH secondary cell; an indication from a network device indicating that the secondary cell is associated with the PUCCH secondary cell; Determine that the secondary cell is co-located with the PUCCH secondary cell; or It is determined based on the carrier aggregation configuration that the secondary cell and the PUCCH secondary cell are within a frequency band. 6 . The terminal device according to claim 5 , wherein according to determining that the secondary cell is determined to be associated with the PUCCH secondary cell, uplink transmission for the secondary cell will be sent on the PUCCH secondary cell after the secondary cell is activated.

7. The terminal device according to any one of claims 1 to 6, wherein the terminal device is further configured to: Activation of the PUCCH secondary cell is prioritized over the activation of the one or more secondary cells associated with the primary cell.

8. The terminal device according to any one of claims 1 to 6, wherein the terminal device is further configured to: prioritizing the activation of the one or more secondary cells associated with the primary cell over activation of the PUCCH secondary cell; and The activation of the PUCCH secondary cell is prioritized over the activation of the one or more secondary cells associated with the PUCCH secondary cell.

9. The terminal device according to any one of claims 1 to 8, wherein: an activation delay for activating the one or more secondary cells associated with the primary cell based only on the number of the one or more secondary cells associated with the primary cell; and The activation delay for activating the one or more secondary cells associated with the PUCCH secondary cell is based on: the number of the one or more secondary cells associated with the primary cell, the number of the one or more secondary cells associated with the PUCCH secondary cell, and the activation delay for activating the PUCCH secondary cell.

10. A network device comprising: at least one processor; as well as at least one memory including computer program code; The at least one memory and the computer program code are configured to, together with the at least one processor, cause the network device to: An indication associated with multiple secondary cells is sent to a terminal device, wherein the multiple secondary cells include a physical uplink control channel (PUCCH) secondary cell, and the PUCCH secondary cell is configured with a PUCCH, and the indication indicates that one or more of the multiple secondary cells are associated with the primary cell, and / or one or more of the multiple secondary cells are associated with the PUCCH secondary cell. The network device according to claim 10 , wherein the indication comprises an instruction for activating the plurality of secondary cells.

12. A method comprising: At the terminal device, receiving, from a network device, an instruction for activating a plurality of secondary cells, the plurality of secondary cells including a physical uplink control channel (PUCCH) secondary cell, the PUCCH secondary cell being configured with a PUCCH; Determine, from the plurality of secondary cells, one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell; and Activation of the one or more secondary cells associated with the primary cell is prioritized over activation of the one or more secondary cells associated with the PUCCH secondary cell.

13. The method according to claim 12, further comprising: It is determined that cell detection is required for activating the one or more secondary cells associated with the primary cell and the one or more secondary cells associated with the PUCCH secondary cell.

14. The method according to claim 12 or 13, further comprising: Determining that a secondary cell is associated with the primary cell is based on at least one of the following: Determining that the secondary cell and the primary cell are in the same timing advance group; Determining that a channel state information reporting resource for the secondary cell is configured on the primary cell; an indication from a network device indicating that the secondary cell is associated with the primary cell; Determine that the secondary cell is co-located with the primary cell; or It is determined based on carrier aggregation configuration that the secondary cell and the primary cell are within a frequency band. 15 . The method of claim 14 , wherein based on determining that the secondary cell is associated with the primary cell, an uplink transmission for the secondary cell is to be sent on the primary cell after the secondary cell is activated.

16. The method according to claim 12 or 13, further comprising: A secondary cell is determined to be associated with the PUCCH secondary cell based on at least one of the following: Determining that the secondary cell and the PUCCH secondary cell are in the same timing advance group; Determining that a channel state information reporting resource for the secondary cell is configured on the PUCCH secondary cell; an indication from a network device indicating that the secondary cell is associated with the PUCCH secondary cell; Determine that the secondary cell is co-located with the PUCCH secondary cell; or It is determined based on the carrier aggregation configuration that the secondary cell and the PUCCH secondary cell are within a frequency band. 17 . The method of claim 16 , wherein according to determining that the secondary cell is determined to be associated with the PUCCH secondary cell, an uplink transmission for the secondary cell is to be sent on the PUCCH secondary cell after the secondary cell is activated.

18. The method according to any one of claims 12 to 17, further comprising: Activation of the PUCCH secondary cell is prioritized over the activation of the one or more secondary cells associated with the primary cell.

19. The method according to any one of claims 12 to 17, further comprising: prioritizing the activation of the one or more secondary cells associated with the primary cell over activation of the PUCCH secondary cell; as well as The activation of the PUCCH secondary cell is prioritized over the activation of the one or more secondary cells associated with the PUCCH secondary cell.

20. The method according to any one of claims 12 to 19, wherein: an activation delay for activating the one or more secondary cells associated with the primary cell based only on the number of the one or more secondary cells associated with the primary cell; and The activation delay for activating the one or more secondary cells associated with the PUCCH secondary cell is based on: the number of the one or more secondary cells associated with the primary cell, the number of the one or more secondary cells associated with the PUCCH secondary cell, and the activation delay for activating the PUCCH secondary cell.

21. A method comprising: At the network device, An indication associated with multiple secondary cells is sent to a terminal device, wherein the multiple secondary cells include a physical uplink control channel (PUCCH) secondary cell, and the PUCCH secondary cell is configured with a PUCCH, and the indication indicates that one or more of the multiple secondary cells are associated with the primary cell, and / or one or more of the multiple secondary cells are associated with the PUCCH secondary cell.

22. The method of claim 21, wherein the indication comprises an instruction for activating the plurality of secondary cells.

23. An apparatus comprising: means for receiving, from a network device, an instruction for activating a plurality of secondary cells, the plurality of secondary cells comprising a physical uplink control channel (PUCCH) secondary cell, the PUCCH secondary cell being configured with a PUCCH; A component for determining, from the plurality of secondary cells, one or more secondary cells associated with the primary cell and one or more secondary cells associated with the PUCCH secondary cell; as well as Means for prioritizing activation of the one or more secondary cells associated with the primary cell over activation of the one or more secondary cells associated with the PUCCH secondary cell.

24. An apparatus comprising: A component for sending an indication associated with multiple secondary cells to a terminal device, the multiple secondary cells including a physical uplink control channel PUCCH secondary cell, the PUCCH secondary cell being configured with a PUCCH, the indication indicating that one or more of the multiple secondary cells are associated with a primary cell, and / or one or more of the multiple secondary cells are associated with the PUCCH secondary cell.

25. A computer-readable storage medium comprising program instructions stored thereon, which, when executed by a processor of a device, cause the device to perform the method according to any one of claims 12 to 20 or any one of claims 21 to 22.

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