Method for conserving network energy

Abstract

The present disclosure is directed to methods, systems, and devices related to wireless communications, and more particularly to conserving network energy. A method of wireless communication includes receiving, by a wireless communication device from a network device, one or more of the following information: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication; wherein the first to fifth indication information comprises one or more of the following information: activation of a cell or a cell group, deactivation of the cell or the cell group, cell state indication, bandwidth part (BWP) indication, BWP state indication, or reference signal indication; and operating the wireless communication device according to the receiving.

Description

Technical Field

[0001] The present disclosure relates generally to wireless communications. Background Art

[0002] Wireless communication technologies are driving the world towards an increasingly connected and networked society. The rapid development of wireless communications and technological advances have led to an increasing demand for capacity and connectivity. Other aspects such as energy consumption, equipment cost, spectrum efficiency, and latency are also important to meet the needs of various communication scenarios. Compared with existing wireless networks, next-generation systems and wireless communication technologies need to support more users and devices and support an increasingly mobile society. Summary of the invention

[0003] Various technologies that can be implemented through embodiments in mobile communication technologies are disclosed, including fifth generation (5G), new radio (NR), fourth generation (4G), and long-term evolution (LTE) communication systems.

[0004] In one example aspect, a wireless communication method is disclosed. The method includes: receiving, by a wireless communication device, one or more of the following information from a network device: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication; wherein the first to fifth indication information includes one or more of the following information: activation of a cell or a cell group, deactivation of a cell or a cell group, a cell state indication, a bandwidth part (BWP) indication, a BWP state indication, or a reference signal indication; and operating the wireless communication device according to the reception.

[0005] In another example aspect, another wireless communication method is disclosed. The method includes: a network device sends one or more of the following information to a wireless communication device: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication; wherein the first to fifth indication information includes one or more of the following information: activation of a cell or a cell group, deactivation of a cell or a cell group, a cell state indication, a BWP indication, a BWP state indication, or a reference signal indication; and operating the wireless communication device according to the sent indication.

[0006] In yet another exemplary aspect, the above method is embodied in the form of a computer-readable medium storing a processor-executable code for implementing the method.

[0007] In yet another exemplary embodiment, a device configured or operable to perform the above method is disclosed. The device includes a processor configured to implement the method.

[0008] The above and other aspects and implementations thereof are described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 An example of a wireless communication system including a base station (BS) and a user equipment (UE) based on some implementations of the disclosed technology is shown.

[0010] Figure 2 An example of a block diagram of a portion of an apparatus based on some implementations of the disclosed technology is shown.

[0011] Figure 3 An example of a specific state MAC CE is shown.

[0012] Figure 4 An example of a combination of a (enhanced) SCell activation / deactivation MAC CE and a specific state MAC CE is shown.

[0013] Figure 5 is a flow chart illustrating an example method.

[0014] Figure 6 is a flow chart illustrating an example method. DETAILED DESCRIPTION

[0015] The section headings in this document are intended only to improve readability and do not limit the scope of the embodiments and techniques disclosed in each section to that section. Certain features are described using examples of fifth generation (5G) wireless protocols. However, the applicability of the disclosed techniques is not limited to 5G wireless systems.

[0016] 5G communications can significantly improve user experience, with higher throughput, large-scale connections, and a variety of services such as enhanced Mobile Broadband (eMBB), Ultra Reliable Low Latency Communications (URLLC), Reduced Capability (redcap), and Extended Reality (XR).

[0017] Energy consumption and greenhouse gas emissions from 5G base stations and user equipment have become prominent issues in 5G deployment. Network energy saving has become a key part of developing sustainable green communication systems and reducing operating costs.

[0018] In wireless communication systems, downlink transmission is the main component of network power consumption. Compared with downlink transmission, uplink transmission consumes a smaller proportion of network energy. Therefore, reducing the power consumption of downlink services is the focus of network energy saving.

[0019] According to current specifications, cells can be deactivated to save energy. However, with this solution, the network must switch the user equipment (UE) or wireless device to other cells, which has a significant impact on system performance and can only be used in extremely low load scenarios. This approach is not suitable for some scenarios. For example, when the downlink service demand of the gNB is small but the uplink service demand is high, in this scenario, the cell cannot be deactivated due to the uplink transmission demand.

[0020] In contrast, downlink transmission consumes a larger proportion of network energy than uplink transmission. Therefore, reducing the power consumption of downlink services is the key to energy conservation.

[0021] Figure 1 An example of a wireless communication system (e.g., Long Term Evolution (LTE), 5G, or NR cellular network) is shown, which includes a BS 120 and one or more user equipments (UEs) 111, 112, and 113. In some embodiments, uplink transmissions (131, 132, 133) may include uplink control information (UCI), high-layer signaling (e.g., UE assistance information or UE capabilities), or uplink information. In some embodiments, downlink transmissions (141, 142, 143) may include downlink control information (DCI), or high-layer signaling, or downlink information. The UE may be, for example, a smart phone, a tablet, a mobile computer, a machine to machine (M2M) device, a terminal, a mobile device, an Internet of Things (IoT) device, etc.

[0022] Figure 2is a block diagram representation of a portion of an apparatus according to some embodiments of the disclosed technology. Apparatus 205 (such as a network device or base station or wireless device (or UE)) may include processor electronics 210 (such as a microprocessor) that implements one or more techniques described in this document. Apparatus 205 may include transceiver electronics 215 to send and / or receive wireless signals through one or more communication interfaces (such as (multiple) antennas 220). Apparatus 205 may include: other communication interfaces for sending and receiving data. Apparatus 205 may include one or more memories (not explicitly shown) configured to store information (such as data and / or instructions). In some implementations, processor electronics 210 may include at least a portion of transceiver electronics 215. In some embodiments, apparatus 205 is used to implement at least some of the disclosed techniques, modules, or functions.

[0023] 1. Instructions

[0024] The indication information includes at least one of the following items: activating a cell, deactivating a cell, indicating a cell status, indicating a BWP, indicating a BWP status, and triggering a reference signal.

[0025] 1.1 Activate / deactivate a cell

[0026] In some examples, the UE receives a first indication indicating activation or deactivation of one or more cells or a cell group. The cell group includes one or more cells.

[0027] In some examples, the indication indicates activation or deactivation of one or more specific cells or specific groups of cells.

[0028] In some examples, the specific cell is a first cell on which uplink transmission is performed only. When the first cell is activated, an uplink bandwidth part (BWP) configured by a Radio Resource Control (RRC) parameter (e.g., firstActiveUplinkBWP-Id) is activated on the first cell. One or more of the following operations are performed on the first cell: transmitting SRS on the cell, reporting CSI on the cell, sending PUCCH on the cell (if configured), sending PUSCH on the cell, sending RACH on the cell, or sending a preamble on the cell.

[0029] In some implementations, all of the above operations are performed on the activated cell. In some other implementations, any combination of the above operations is performed on the activated cell. One example may be that only SRS and PRACH are sent on the activated cell. Another example may be that only SRS and PUSCH are sent on the activated cell. In these examples, the gNB does not send downlink transmissions on the first cell, such as not sending a synchronization signal block (SSB) on the cell, not sending a system information block (SIB) on the cell, not sending a downlink reference signal (RS) on the cell, not sending a PDCCH on the cell, or not sending a downlink (DL)-SCH on the cell.

[0030] In some examples, when there is no DL service in the first cell, the first cell may be cross-carrier scheduled by another cell. When the first cell is scheduled by the associated scheduling cell, the number of candidates and the aggregation level for the first cell used on the associated scheduling cell may be the same as those of the scheduling cell. In some other examples, when the first cell is scheduled by the associated scheduling cell, the number of candidates and the aggregation level for the first cell used on the associated scheduling cell may be the default values ​​configured by the RRC parameters.

[0031] In some other examples, the specific cell is a second cell, where restricted DL reference signals / channels are performed on the second cell. When the second cell is activated, the DL BWP and UL BWP configured by RRC parameters (e.g., firstActiveDownlinkBWP-Id and firstActiveUplinkBWP-Id, respectively) are activated. One or more of the following operations are performed on the second cell: sending SRS, reporting CSI, sending PUCCH (if configured), sending PUSCH, sending RACH, not processing DL common signals / channels, processing DL common signals / channels with an extended period, detecting CSI-RS (periodic CSI-RS and / or aperiodic CSI-RS), or detecting on-demand reference signals.

[0032] The DL common signal / channel in this article refers to a non-UE-specific downlink signal / channel, including at least one of SSB, SIB, discovery burst, and paging.

[0033] When the second cell is activated, the gNB sends a restricted DL reference signal / channel in the second cell, for example, the gNB performs one or more of the following items: not sending a DL common signal / channel on the cell, sending a DL common signal / channel on the cell with an extended period, not sending a PDCCH on the cell, not sending a DL-SCH on the cell, or sending an on-demand RS on the cell.

[0034] The extended period discussed in this article is determined by one or more of the following items: configured by high-level parameters, N times the default period of the signal on the traditional SCell, where N ≥ 1, the maximum value that can be configured for the signal on the traditional SCell, or M times the maximum period of the signal on the traditional SCell, where M ≥ 1.

[0035] In some examples, when a specific cell is a first cell that performs only uplink transmission (downlink service is not performed on the cell), the first cell is associated with a predetermined cell. The first cell associated with the predetermined cell refers to one or more of the following items: scheduling information for the first cell is sent on the predetermined cell; indication information for the first cell is sent on the predetermined cell; the corresponding timing reference frame of the first cell belongs to the predetermined cell, and the system frame boundary and system frame number of the first cell are the same as those of the predetermined cell; the first cell and the predetermined cell belong to the same timing advance group; the same timing advance offset value is applied to both the first cell and the predetermined cell; the uplink frame of the first cell corresponds to the downlink frame in the predetermined cell (for example, the uplink frame number i of the first cell corresponds to the downlink frame number i in the predetermined cell); a reference RS (which is configured to obtain spatial relationship information) of the UL transmission (e.g., SRS, PUCCH, PUSCH) of the first cell is sent on the predetermined cell; or the path loss difference between the first cell and the predetermined cell is not greater than the offset.

[0036] When the UE is configured with a DL or joint-TCI state or a UL-TCI state, the reference RS in the DL or joint-TCI state or the UL-TCI state may be a resource configured on a predetermined cell. In some examples, the predetermined cell includes one or more of the following items: a predetermined cell configured by a high-level parameter (e.g., configured by an RRC), the predetermined cell is a PCell or a PSCell, the predetermined cell and the target cell belong to the same timing advance group (TAG), the predetermined cell and the target cell belong to the same frequency range, the path loss difference between the first cell and the predetermined cell is not greater than the offset, or the interval between the carrier frequency of the predetermined cell and the target cell is less than X MHz, where X is a positive number. The target cell is a specific cell.

[0037] In some other examples, the UL BWP on the specific cell is associated with the DL BWP on the predetermined cell. In some examples, the activated UL BWP on the specific cell is associated with the activated DL BWP on the predetermined cell. When the DL BWP on the predetermined cell is switched, the UL BWP on the specific cell will not be switched accordingly. The UL BWP switching on the specific cell is determined by the expiration of the BWP inactivity timer or by the indication of the bandwidth part indicator carried on the DCI format 0_1 ​​or DCI format 0_2 sent on the predetermined cell.

[0038] In some other examples, the UL BWP on the specific cell is associated with the DLBWP having the same BWP index on the predetermined cell. That is, when the DL BWP index and the UL BWP index are the same, the UL BWP on the specific cell having the UL BWP index provided by the BWP-Id is associated with the DL BWP on the predetermined cell having the DL BWP index provided by the BWP-Id. When the DL BWP on the predetermined cell is switched, the UL BWP on the specific cell is also switched accordingly.

[0039] In some other examples, for non-paired spectrum operation, the UL BWP on a specific cell is associated with a DL BWP having the same BWP index on a predetermined cell. Otherwise, the activated UL BWP on a specific cell is associated with the activated DL BWP on the predetermined cell. The UL BWP of a specific cell associated with the DL BWP of a predetermined cell includes one or more of the following items: scheduling information for the specific cell is sent on the DL BWP in the predetermined cell, indication information for the specific cell is sent on the DL BWP in the predetermined cell, a reference RS (which is configured to obtain spatial relationship information) of UL transmission (e.g., SRS, PUCCH, PUSCH) in the specific cell is detected on the DL BWP in the predetermined cell, and the UL BWP and the DLBWP have the same subcarrier spacing (SCS).

[0040] In some examples, the predetermined cell satisfies one or more of the following items: a predetermined cell configured by a high-layer parameter (e.g., configured by RRC), the predetermined cell is a PCell or a PSCell, the predetermined cell and the target cell belong to the same timing advance group (TAG), the predetermined cell and the target cell belong to the same frequency range, the interval between the carrier frequency of the predetermined cell and the target cell is less than X MHz, X is a positive number, and the path loss difference between the first cell and the predetermined cell is not greater than the offset. The target cell is a specific cell.

[0041] In some other examples, a specific cell is configured with a specific DL BWP, and when the specific cell is activated, the UL BWP and the specific DL BWP are activated. On the specific BWP, a limited DL reference signal / channel is sent. On the specific BWP, the UE performs one or more of the following: not processing DL common signals / channels, processing DL common signals / channels with an extended period, detecting CSI-RS (periodic CSI-RS and / or non-periodic CSI-RS), detecting on-demand reference signals, not monitoring PDCCH on BWP; not receiving DL-SCH on BWP.

[0042] For non-paired spectrum, the DL-specific BWP is paired with the UL BWP, and BWP switching is common for both UL and DL. If the BWP is activated on a specific cell and the active DL BWP for the specific cell is a specific BWP, the UE performs one or more of the following: sending SRS, reporting CSI, sending PUCCH (if configured), sending PUSCH, sending RACH, not monitoring PDCCH on the BWP, not receiving DL-SCH on the BWP, not processing DL common signals / channels, processing DL common signals / channels with an extended period, detecting CSI-RS (periodic CSI and / or non-periodic CSI), or receiving RS on demand.

[0043] At a specific BWP, the gNB performs one or more of the following: not sending a DL common signal / channel, sending a DL common signal / channel with an extended period, sending an on-demand RS, and sending a CSI-RS.

[0044] The extended period includes one or more of the following items: configured by high-level parameters, N times the default period of the signal in the traditional cell, where N≥1, can be configured for the maximum value of the signal in the traditional cell, or M times the maximum period of the signal in the traditional cell, where M≥1.

[0045] In some examples, the indication indicates activation of a downlink cell, wherein the downlink cell is associated with an uplink-only cell. In some examples, the downlink cell has the same cell index as the activated uplink-only cell. In some other examples, the downlink cell index and the uplink cell index are configured separately. When the downlink cell is activated, one or more of the following operations are performed in the cell: monitoring PDCCH, receiving PDSCH, processing SSB, detecting CSI-RS, or detecting on-demand RS.

[0046] In some other examples, the indication indicates deactivation of a downlink carrier. When the downlink carrier is deactivated, the UE does not receive downlink signals and channels on the cell. When the DL carrier is deactivated, uplink transmission on the cell is still valid. When the downlink carrier is deactivated, the gNB does not send DL traffic on the cell, such as not sending PDCCH on the cell, not sending PDSCH on the cell, not sending SSB on the cell, or not sending DL reference signals on the cell.

[0047] In some examples, when a DL carrier is deactivated, the UL carrier corresponding to the deactivated DL carrier is associated with a predetermined cell. In some other examples, when a DL carrier is deactivated, the BWP of the UL carrier corresponding to the deactivated DL carrier is associated with the BWP in the predetermined cell. The UL carrier corresponding to the deactivated DL carrier means that: the UL carrier and the deactivated DL carrier are configured in one serving cell, or the UL carrier and the deactivated DL carrier are activated by the same MAC CE. The UL carrier is associated with the predetermined cell means one or more of the following items: scheduling information for the UL carrier is sent on the predetermined cell; indication information for the UL carrier is sent on the predetermined cell; the corresponding timing reference frame of the UL carrier belongs to the predetermined cell; the same timing advance offset value is applied to both the UL carrier and the predetermined cell; the uplink frame of the UL carrier corresponds to the downlink frame in the predetermined cell (for example, the uplink frame number i of the UL carrier corresponds to the downlink frame number i in the predetermined cell); the reference RS of the UL transmission (for example, SRS, PUCCH, PUSCH) in the UL carrier is sent on the predetermined cell. In some embodiments, the reference RS is configured to obtain spatial relationship information.

[0048] In some examples, the predetermined cell is configured by an RRC parameter. When the DL carrier is deactivated, the association takes effect immediately. In some other examples, the predetermined cell is indicated by an indication. The indication may be carried by a deactivation indication, or the indication may be a new signal / channel sent on the predetermined cell after the DL carrier is deactivated.

[0049] In some other examples, the UL carrier corresponding to the deactivated DL carrier is not associated with any cell. For this UL carrier, the configuration before the DL carrier is deactivated, such as search space-related configuration and timing-related configuration, can still be used. The UL carrier corresponding to the deactivated DL carrier means that the UL carrier and the DL carrier are configured in one serving cell or the UL carrier and the deactivated DL carrier were previously activated by the same MAC CE. The BWP of the UL carrier associated with the BWP in the predetermined cell refers to one or more of the following items: sending scheduling information for the UL carrier on the BWP in the predetermined cell, sending the reference RS of the UL transmission (e.g., SRS, PUCCH, PUSCH) in the UL carrier on the active BWP of the predetermined cell, and the UL BWP and the DL BWP have the same SCS. The predetermined cell is determined by one or more of the following items: the predetermined cell is configured by a high-layer parameter (for example, configured by RRC), the predetermined cell is a PCell or a PSCell, the predetermined cell and the UL carrier belong to the same TAG (timing advance group), the predetermined cell and the UL carrier belong to the same frequency range, and the interval between the carrier frequency of the predetermined cell and the UL carrier is less than X MHz, where X is a positive number.

[0050] In some examples, when the downlink carrier is deactivated, there is no self-scheduling in the cell, and the cell can be cross-carrier scheduled by other cells. In some other examples, when the downlink carrier is deactivated, for a cell having an uplink carrier scheduled only by an associated scheduling cell, the number of candidates for the uplink carrier to be used on the associated scheduling cell and the aggregation level can be the same as the scheduling cell. In some other examples, for a cell having an uplink carrier scheduled only by an associated scheduling cell, the number of candidates for the uplink carrier to be used on the associated scheduling cell and the aggregation level can be the default value configured by the RRC parameters. In some other examples, the candidates and aggregation in the search space configured for the downlink carrier can be stored and used for the uplink carrier with cross-carrier scheduling. For a cell having an uplink carrier scheduled only by an associated scheduling cell, the number of candidates for the uplink carrier and the aggregation level used on the associated scheduling cell can be the same as the downlink carrier before the downlink carrier is deactivated.

[0051] In some examples, when a cell or carrier is deactivated, the RRC configuration may be stored. When the cell / carrier is reactivated, it will automatically restore the RRC configuration stored before deactivation. In some other examples, when a cell or carrier is deactivated, the RRC configuration may be released. When the cell / carrier is reactivated, the RRC may need to be reconfigured. In some other examples, when the cell / carrier is reactivated, a default RRC configuration is used.

[0052] 1.2 Indicating cell status

[0053] In some examples, the UE receives a second indication indicating a specific state of one or more SCells or SCell groups, where the specific state is a first SCell state or a second SCell state.

[0054] In some examples, the first SCell state means that the UE does not receive any DL signal or channel on the SCell having the first SCell state, and when the SCell is in the first SCell state, the gNB does not send DL signals and channels on the SCell. When the SCell is in the first SCell state, the UE performs one or more of the following items: sending SRS on the SCell, reporting CSI for the SCell, sending UL-SCH on the SCell, sending RACH on the SCell, not monitoring PDCCH on the SCell, not sending PDSCH on the SCell, not processing SSB on the SCell, or not detecting reference signals on the SCell.

[0055] In some other examples, the UE receives a restricted DL signal or channel on an SCell having a first SCell state, and the gNB sends a restricted DL signal or channel on the SCell in the first SCell state. When the SCell is in the first SCell state, the UE performs one or more of the following operations: not monitoring PDCCH, processing DL common signals / channels with an extended period, detecting CSI-RS (periodic CSI-RS and / or non-periodic CSI-RS), receiving RS on demand, sending SRS, reporting CSI, sending PUCCH (if configured), sending PUSCH, sending RACH. In some other implementations, for the SCell in the first state, the gNB sends downlink common signals / channels with an extended period. The UE processes downlink common signals / channels with an extended period.

[0056] In some other examples, the second SCell state is an active state.

[0057] 1.3 Indication BWP

[0058] In some examples, the UE receives a third indication indicating a BWP in one or more SCells or SCell groups.

[0059] In some examples, the third indication indicates a first DL BWP. On the first DL BWP, no DL signal / channel is sent, or a restricted DL signal / channel is sent. The UE does not receive DL signals and channels on the first BWP, or processes restricted DL signals / channels on the first DL BWP. On the first DL BWP, the UE complies with one or more of the following items: does not monitor PDCCH on the BWP, does not receive DL-SCH on the BWP, does not process DL common signals / channels on the BWP, processes DL common signals / channels with an extended period, detects CSI-RS, and receives RS / SSB on demand. For non-paired spectrum, the DL BWP is paired with the UL BWP, and BWP switching is common for both UL and DL. When BWP is activated and the active DL BWP of the SCell is the first BWP, the UE complies with one of the following: send SRS, report CSI, send PUCCH (if configured), send PUSCH, send RACH, do not monitor PDCCH on BWP, do not receive DL-SCH on BWP, do not process DL common signals / channels on BWP, process DL common signals / channels with extended period, detect CSI-RS, receive RS on demand. The extended period is determined by one or more of the following: configured by high-level parameters, N times the default period of the signal in the traditional SCell, where N≥1, can be configured for the maximum value of the signal in the traditional SCell, M times the maximum period of the signal in the traditional SCell, where M≥1.

[0060] In some other examples, the BWP is a second BWP. In some examples, the second BWP is a legacy DL BWP with normal DL transmission or a dormant BWP.

[0061] In some examples, when the indication indicates a first BWP, the UE activates the first BWP. If the currently active BWP in the cell is a second BWP, the UE switches from the second BWP to the first BWP. If the currently active BWP in the cell is the first BWP, the UE keeps the currently activated BWP active. The first BWP may be configured by higher-layer parameters, for example, the first BWP is configured with a specific BWP ID (e.g., energy-saving BWP-Id). In some other examples, when the indication indicates a second BWP, the UE activates the second BWP. If the currently active BWP in the cell is the second BWP, the UE keeps the currently activated BWP active. If the currently active BWP in the cell is the first BWP, the UE switches from the currently active BWP to the second BWP, wherein the second BWP to be activated is determined by one or more of the following: configured by higher-layer parameters, a BWP with a specified BWP ID, a BWP that was active before activating the energy-saving BWP, an initial BWP, or a default BWP.

[0062] 1.4 Indication of BWP status

[0063] In some examples, the UE receives a fourth indication, where the fourth indication indicates: a specific BWP state in one or more SCells or SCell groups.

[0064] In some examples, a specific BWP state can be configured for a specific DL BWP. In some examples, a specific BWP is configured by a high-level parameter, such as a specific BWP with a specific state is configured with a specific BWP ID (e.g., energy-saving BWP-Id). In some other examples, the specified BWP can be a BWP with predefined characteristics. For example, the specific BWP is a default BWP, an initial BWP, a BWP with the lowest bandwidth, or a BWP with the largest BWP ID. In some other examples, a specific BWP state can be configured for any BWP. In some other examples, a specific BWP state can be configured for any BWP except a dormant BWP. In some other examples, whether a BWP can be configured with a specific BWP state is determined by UE capabilities or RRC parameters.

[0065] In some examples, the specific BWP state includes one or more of the following: the UE does not receive DL common signals / channels, and the UE receives limited DL common signals / channels. The UE receiving limited DL common signals / channels includes one of the following: not monitoring PDCCH on a specific BWP; not receiving DL-SCH on a specific BWP; processing DL common signals / channels with an extended period; detecting CSI-RS; receiving RS / SSB on demand.

[0066] When the activated DL BWP is in a specific BWP state, the uplink BWP may be in an activated state, and the UE complies with one or more of the following items: send SRS, report CSI, send PUCCH (if configured), send PUSCH, send RACH, do not monitor PDCCH on BWP; do not receive DL-SCH on BWP; do not process DL common signals / channels on BWP, process DL common signals / channels with extended periodicity, detect CSI-RS, receive RS / SSB on demand. When the active DL BWP is in a specific BWP state, the gNB performs one or more of the following items: do not send DL common signals / channels, send DL common signals / channels with extended periodicity, send RS / SSB on demand, send CSI-RS. The extended period is determined by one or more of the following items: configured by a higher layer parameter; N times the default period of the signal before the specific BWP state is introduced, where N ≥ 1, the maximum value that can be configured for the signal before the specific BWP state is introduced, or M times the maximum period of the signal before the specific BWP state is introduced, where M ≥ 1.

[0067] In some examples, the indication indicates a specific BWP state, and if the current active BWP supports being configured with the specific BWP state, the UE switches the current active BWP from an activated state to the specific state. In some examples, the indication indicates a specific BWP state, and if the current active BWP does not support being configured with the specific BWP state, the UE switches the current BWP to another BWP that supports the specific BWP state.

[0068] In some other examples, the indication indicates a non-specific BWP state / active BWP state, the UE switches the current BWP from a specific BWP state to an activated state, or the UE switches the current BWP to another BWP, such as switching to a default BWP, or switching to an initial BWP.

[0069] 1.5 Indicator reference signal

[0070] In some other examples, the UE receives a fifth indication indicating one or more reference signals or reference signal resources, such as TRS, CSI-RS, CSI-RS resource, TRS resource, CSI-RS resource set, TRS resource set, SSB.

[0071] The reference signal resources are configured by high-layer parameters. In some examples, the reference signal resources are configured for one or more of the following: fast SCell activation, synchronization, automatic gain control (AGC), transmission timing adjustment, or beam management.

[0072] In some examples, a reference signal is sent on the target cell. In some other examples, a reference signal resource is sent on a predetermined cell. The predetermined cell complies with one or more of the following items: the predetermined cell is configured by a high-layer parameter (e.g., configured by RRC), the predetermined cell is a PCell or a PSCell, the predetermined cell and the target cell belong to the same timing advance group (TAG), and the predetermined cell and the target cell belong to the same frequency range. The target cell is one or more of the following items: a cell to be activated, a specific cell with no DL common signal / channel transmission or limited DL common signal / channel transmission, a cell with a specific state of no DL common signal / channel transmission or limited DL common signal / channel transmission, and an active DL BWP is a cell with a specific BWP on which there is no DL common signal / channel transmission or limited DL common signal / channel transmission.

[0073] In some other examples, the reference signal is configured as a reference RS for the TCI state of the UL transmission (e.g., SRS, PUCCH, PUSCH) in the target SCell. For example, the reference signal is configured as: a reference RS for an SRS configured with a DL or joint-TCI state, or a UL-TCI state, or following a unified TCI state-r17 in the target cell, wherein the target cell is one or more of the following items: a cell to be activated, a specific cell, a cell in a specific cell state, or a cell in which the active BWP is the first BWP. In some examples, the reference signal is configured as: having a quasi-co-location relationship "type D" (type D) with an SSB or CSI-RS resource located in the target cell or a predetermined cell. For example, the reference signal is configured with a reference to an SS / PBCH block, or is configured with a CSI-RS resource of qcl type set to 'typeD', wherein the SS / PBCH block or CSI-RS resource is located in the target cell or a predetermined cell.

[0074] In some examples, the UE is configured with a DL or joint-TCI state, or a UL-TCI state, and the indicated reference signal resource may be configured as: a reference RS for the SRS in the target SCell. In some other examples, the target cell is configured with a TCI state following unified -r17, and the indicated reference signal resource may be configured as: a reference RS for determining the UL TX spatial filter.

[0075] 2. Indication signaling

[0076] One or more of the first to fifth indications are carried by one or more of the following items: RRC signaling, MACCE, system information block (System Information Block, SIB), DCI or reference signal.

[0077] In some examples, both the first indication and the fifth indication are carried on the MAC CE. In other examples, the first indication is carried on the MAC CE, and the fifth indication is carried on the DCI. In this case, the fifth indication is sent after the first indication takes effect, for example, triggering the reference signal after the first cell is activated.

[0078] 2.1RRC Signaling

[0079] In some examples, at least one of the indications is carried by RRC signaling and the UE performs operations according to the RRC configuration.

[0080] 2.2MAC CE

[0081] In some examples, at least one of the indications is carried by a MAC CE.

[0082] In some examples, the MAC CE is a specific SCell activation / deactivation MAC CE. The MAC CE includes one or more of the following fields: a cell field, an RS field, and a reserved field. In some examples, each bit Ci in the cell field indicates: the activation / deactivation status of the SCell configured for the MAC entity whose SCellIndex (SCell index) is equal to i. The Ci field is set to "1" to indicate that the SCell with SCellIndex i should be activated, and the Ci field is set to "0" to indicate that the SCell with SCellIndex i should be deactivated. In some other examples, the RS field is used to indicate: whether there is an RS configured for valid activation of the SCell. The eight-bit RS field corresponds to the SCell that should be activated in ascending order of the SCellIndex of the SCell according to the cell field, and the corresponding Ci is set to 1.

[0083] In some other examples, the MAC CE is an SCell activation / deactivation MAC CE or an enhanced SCell activation / deactivation MAC CE, wherein a reserved bit is used to indicate the type of cell to be activated. When the reserved bit is set to 0, the SCell to be activated is a legacy cell before Release 18. When the reserved bit is set to 1, the SCell to be activated is a specific cell.

[0084] In some other examples, the MAC CE is a specific state MAC CE. The specific state MAC CE includes a cell field and a reserved field, wherein each bit in the cell field corresponds to an SCell state, which has an SCellIndex configured by a higher layer parameter. Figure 3 As shown in , a specific state MAC CE includes one or more octets, for example, a specific state MAC CE includes one octet, or a specific state MAC CE includes four octets.

[0085] In some examples, the cell field of the specific state MAC CE is used to indicate the SCell state. For an activated SCell configured with SCellIndexi, if the field corresponding to the SCell in the specific state MAC CE (e.g., the Ci field) is set to 1, the SCell indicates the first state, and if the field corresponding to the SCell in the specific state MAC CE (e.g., the Ci field) is set to 0, the SCell indicates the second state. For a deactivated SCell, the MAC entity should be ignored. When an SCell activation / deactivation MAC CE and a specific state MAC CE are received at the same time, or an enhanced SCell activation / deactivation MAC CE and a specific state MAC CE are received at the same time, the SCell state is determined by both the SCell activation / deactivation MAC CE and the specific state MAC CE, or the enhanced SCell activation / deactivation MAC CE and the specific state MAC CE.

[0086] Figure 4 A combination of (enhanced) SCell activation / deactivation MAC CE and a specific state MAC CE is shown. Case 1: When the cell field corresponding to the target SCell in the SCell activation / deactivation MAC CE or the enhanced SCell activation / deactivation MAC CE is set to 1 and the cell field corresponding to the target SCell in the specific state MAC CE is set to 1, the target SCell should be in the first state. Case 2: When the cell field corresponding to the target SCell in the SCell activation / deactivation MAC CE or the enhanced SCell activation / deactivation MAC CE is set to 1 and the cell field corresponding to the target SCell in the specific state MAC CE is set to 0, the target SCell should be activated (in an activated state). Case 3: When the cell field corresponding to the target SCell in the SCell activation / deactivation MAC CE or the enhanced SCell activation / deactivation MAC CE is set to 0 and the cell field corresponding to the target SCell in the specific state MAC CE is set to 0, the target SCell should be deactivated. Case 4: When the cell field corresponding to the target SCell in the SCell activation / deactivation MAC CE or enhanced SCell activation / deactivation MAC CE is set to 0, and the cell field corresponding to the target SCell in the specific state MAC CE is set to 1, this case can be retained.

[0087] 2.3DCI

[0088] In some examples, at least one indication is carried by a DCI. In some examples, the DCI is a group common DCI sent on a PCell or a PSCell. The UE detects the DCI on a PCell or a SpCell. In some other examples, the DCI is a cell-specific DCI and all UEs in the cell follow the indication in the DCI. A cell-specific RNTI may be configured for the UE.

[0089] In some examples, the DCI includes a first bit field. In some examples, the first bit field is a bitmap, each bit of the bitmap indicates the active BWP of the SCell or SCell group. In some examples, the 'A1' value of the bit indicates the first BWP, and the 'A2' value of the bit indicates the second BWP, where A1 is equal to 0 and A2 is equal to 1, or A1 is equal to 1 and A2 is equal to 0. In some other examples, the first bit field indicates the BWP ID. For example, the first bit field includes multiple segments, each segment corresponds to a code point, which indicates that the BWPID corresponds to an SCell or an SCell group. When the BWP ID is indicated, the corresponding SCell switches to the indicated BWP.

[0090] The UE expects to provide Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) information in response to the DCI indicating the first BWP after S symbols from the last symbol of the PDCCH. Where S>0 and is related to the SCS of the BWP. The UE switches the BWP after sending the HARQ-ACK for a period of time.

[0091] In some other examples, the DCI includes a second bit field. In some examples, the second bit field is a bitmap, and each bit of the bitmap indicates a BWP state of the SCell or SCell group. In some examples, a "B1" value of the bit indicates a first BWP state, and a "B2" value of the bit indicates an active BWP state, where B1 is equal to 0 and B2 is equal to 1, or B1 is equal to 1 and B2 is equal to 0.

[0092] The UE expects to provide HARQ-ACK information in response to a DCI indicating a specific BWP state after X symbols from the last symbol of the PDCCH, where X>0 and is related to the SCS of the BWP. The UE switches the BWP state after sending the HARQ-ACK for a period of time.

[0093] In some other examples, the DCI includes a third bit field. In some examples, the third bit field is a bitmap, each bit of the bitmap indicating the state of the SCell or SCell group. In some examples, the 'C1' value of the bit indicates a first state, and the 'C2' value of the bit indicates a second state, where C1 is equal to 0, C2 is equal to 1, or C1 is equal to 1, C2 is equal to 0. For a deactivated SCell, the indication of the third field is ignored. When an active SCell is indicated by the third bit field, the SCell follows the indication. For example, for an active SCell, when the third bit field indicates the first state, the SCell transitions to the first state. In some other examples, the third bit field indicates a cell ID. An activated SCell with a cell index indicated by the third field will transition to the first state. A deactivated SCell will ignore the third field.

[0094] The UE expects to provide HARQ-ACK information in response to the DCI indicating the SCell state Y symbols after the last symbol of the PDCCH, where Y>0 and is related to the SCS of the active BWP on the SCell. The UE switches the SCell state after sending the HARQ-ACK for a period of time.

[0095] In some other examples, the DCI includes a fourth bit field. In some examples, the fourth bit field indicates: activation or deactivation of one or more carriers / SCells or carrier / SCell groups. In some examples, a value of 'D1' of the bit indicates an activation indication, and a value of 'D2' of the bit indicates a deactivation indication, where D1 is equal to 0, D2 is equal to 1, or D1 is equal to 1, D2 is equal to 0.

[0096] In some examples, when the DCI indicates activation / deactivation of a cell / carrier, the UE expects to provide HARQ-ACK information in response to detection of the DCI N symbols after the last symbol of the PDCCH providing the DCI, where N is a positive value. In some other examples, when the UE receives an activation command for a carrier / cell in the DCI that ends with time slot n, the UE applies the corresponding activation action at the latest before n+d1, where d is the indicated validity time and d1>0. In some other examples, when the UE receives a deactivation command for a carrier / cell in the DCI that ends with time slot n, the UE applies the corresponding deactivation action at the latest before n+d2, where d is the indicated validity time and d2>0. For example, the UE does not detect the reference signal on the cell / carrier from time slot n+d2, or the UE does not monitor the PDCCH on the cell from time slot n+t, where t <d2。

[0097] In some other examples, the DCI includes a fifth bit field. Each bit of the fifth bit field is associated with a set of RS resource sets. Each set of RS resource sets includes one or more RS resource sets. In some examples, the RS resources are configured on the SCell to be activated. In other examples, the RS resources are configured on a predetermined cell. The measurement results of the RS are used for the SCell to be activated.

[0098] In some examples, the size of at least one of the first bit field, the second bit field, the third bit field, and the fourth bit field is determined by one or more of the following items: RRC parameters, the maximum number of cells that can be configured for the UE, the number of configured SCells, the number of activated SCells, and the number of configured SCell groups, where the configured SCell refers to at least one of the following items: an SCell configured with a first BWP, an SCell configured with a BWP with a specific BWP state, or an SCell that can be configured with a specific SCell state.

[0099] In some examples, the size of the bit field or the size of a segment of the bit field is equal to the number of configured SCells or the number of configured SCell groups, and each bit / segment of the bit field corresponds to one configured SCell in the number of configured SCells, or each bit / segment of the bit field corresponds to a configured SCell group in the number of configured SCell groups. In some other examples, the size of the bit field or the size of a segment of the bit field is equal to the maximum number of cells that can be configured for the UE, and each bit of the bit field or each segment corresponds to one SCell with an increasing cell index.

[0100] 2.4 SIB (System Information Block)

[0101] In some examples, at least one of the indications is carried by a SIB. In some examples, at least one of the indications is carried by a new SIB. For example, the new SIB contains information related to cell / carrier activation or deactivation. The uplink cell / carrier list and / or downlink cell / carrier can be configured in the new SIB. When the SIB indicates deactivation of the downlink carrier, all UEs in the cell will deactivate the downlink carrier. In some other examples, at least one of the indications is carried by an existing SIB, such as SIB1, SIB17.

[0102] 2.5 Reference Signal

[0103] In some examples, at least one of the indications is carried by a reference signal. In some examples, an initialization seed of the signal is associated with a cell index. When the reference signal is received, the corresponding cell will be activated or deactivated. In some other examples, when the reference signal is received, the corresponding cell will switch to a specific cell state.

[0104] Some preferred embodiments may use the following solutions.

[0105] 1. A method of wireless communication (e.g., Figure 5 ), comprising: receiving, by a wireless communication device, one or more of the following information from a network device: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication (502); wherein the first to fifth indication information comprises one or more of the following information: activation of a cell or a cell group (as described in Section 1.1), deactivation of a cell or a cell group (as described in Section 1.1), a cell status indication (as described in Section 1.2), a bandwidth part (BWP) indication (as described in Section 1.3), a BWP status indication (as described in Section 1.4), or a reference signal indication (as described in Section 1.5) (504); and operating the wireless communication device according to the reception (506). A detailed discussion is described in Section 1 (Indication Information).

[0106] 2. According to the method of solution 1, one or more of the first to fifth indication information is carried by one or more of the following transmission signals: radio resource control (RRC) signaling, medium access control-control element (MAC-CE) signaling, downlink control information (DCI) signaling, reference signal, or system information block (SIB). The detailed discussion is described in Section 2 (Indication Signaling).

[0107] 3. The method according to solution 1, wherein the first indication indicates one or more of the following items: activation of a specific cell or a specific cell group, or deactivation of a specific cell or a specific cell group.

[0108] 4. According to the method of solution 3, the specific cell or specific cell group further includes:

[0109] The first cell in which only uplink transmission is performed.

[0110] 5. A method according to solution 4, wherein the wireless communication device performs one or more of the following operations: sending a sounding reference signal (SRS), reporting channel state information (CSI), sending a physical uplink control channel (PUCCH), sending a physical shared control channel (PUSCH), sending a random access channel (RACH), or sending a preamble.

[0111] 6. According to the method of solution 3, the specific cell or specific cell group further includes:

[0112] A second cell in which the restricted downlink service is performed.

[0113] 7. A method according to solution 6, wherein the wireless communication device performs one or more of the following operations: sending SRS, reporting CSI, sending PUCCH, sending PUSCH, sending RACH, processing downlink common signals or channels with an extended period, not processing downlink common signals or channels, detecting CSI-RS, or detecting on-demand reference signals.

[0114] 8. A method according to solution 6, wherein a specific cell or a specific cell group is configured with a special downlink BWP; wherein the wireless communication device performs one or more of the following operations on the special downlink BWP: processing a downlink common signal or channel with an extended period, not processing a downlink common signal or channel, detecting a CSI-RS, detecting an on-demand reference signal, not monitoring a PDCCH, or not receiving a DL-SCH.

[0115] 9. The method according to solution 4, wherein the uplink BWP on the first cell is associated with the downlink BWP on the predetermined cell.

[0116] 10. The method according to solution 4, wherein the first cell is associated with a predetermined cell.

[0117] 11. The method according to solution 1, wherein the first indication further indicates deactivation of a downlink carrier, wherein uplink transmission corresponding to the deactivated downlink carrier is not stopped.

[0118] 12. A method according to any one of solutions 9 or 11, wherein the uplink carrier or the uplink BWP on the first cell is associated with the downlink BWP on the predetermined cell, or the uplink carrier is associated with the predetermined cell; and wherein the downlink carrier is deactivated.

[0119] 13. A method according to any one of solutions 9 to 12, wherein an uplink BWP on an uplink carrier or a first cell is associated with a downlink BWP on a predetermined cell, further comprising one or more of the following items: scheduling information for a target is sent on the associated BWP, indication information for a target is sent on the associated BWP, a reference RS for a spatial relationship used for UL transmission in an active target is detected on the associated BWP, or the UL BWP and the associated BWP have the same subcarrier spacing (SCS); wherein the target is the first cell or the uplink carrier.

[0120] 14. A method according to any one of solutions 9 to 12, wherein the uplink carrier or the first cell is associated with the predetermined cell and further includes one or more of the following items: an indication of the uplink carrier or the first cell is sent on the predetermined cell, the corresponding timing reference frame of the uplink carrier or the first cell belongs to the predetermined cell, the uplink carrier or the first cell has the same system frame boundary and system frame number as the predetermined cell, the uplink carrier or the first cell uses the same timing advance group as the predetermined cell, the same timing advance offset value is applied to both the uplink carrier or the first cell and the predetermined cell, the uplink frame in the uplink carrier or the first cell corresponds to the downlink frame in the predetermined cell, the downlink reference signal of the uplink transmission in the uplink carrier or the first cell is sent on the predetermined cell, or the path loss difference between the uplink carrier or the first cell and the predetermined cell is not greater than the offset.

[0121] 15. A method according to solution 1, wherein the second indication indicates the SCell state of one or more SCells or SCell groups; wherein the SCell state includes a first SCell state; and wherein when the SCell is in the first SCell state, the wireless communication device performs one or more of the following operations: not monitoring PDCCH, not processing downlink common signals or channels, processing downlink common signals or channels with an extended period, detecting CSI-RS, receiving on-demand reference signals, sending SRS, reporting CSI, sending PUCCH, sending PUSCH, or sending RACH.

[0122] 16. The method according to solution 1, wherein the third indication indicates a specific BWP in one or more SCells or SCell groups.

[0123] 17. The method of solution 16, wherein the specific BWP comprises: at least one of a first downlink BWP or a second downlink BWP.

[0124] 18. A method according to any one of solutions 16 or 17, wherein the wireless communication device performs one or more of the following items on the first BWP: not monitoring PDCCH; not receiving DL-SCH; not processing downlink common signals or channels; processing downlink common signals or channels with an extended period; detecting CSI-RS; or receiving on-demand RS or SSB.

[0125] 19. A method according to solution 1, wherein the fourth indication indicates a specific BWP state in one or more SCells or SCell groups; wherein the specific BWP state includes one or more of the following items: configured for a specific downlink BWP, configured with predefined characteristics, configured for any BWP, or configured for any BWP except a dormant BWP.

[0126] 20. The method according to solution 19, wherein when the activated BWP is in a specific BWP state, the wireless communication device does not receive a downlink common signal or channel on the activated BWP, or receives a restricted downlink common signal or channel.

[0127] 21. A method according to solution 1, wherein the fifth indication includes an indication of one or more reference signals or reference signal resources; wherein the reference signal resources are configured for one or more of the following items: fast SCell activation, synchronization, automatic gain control (AGC), transmit timing adjustment, or beam management.

[0128] 22. A method according to any one of solutions 7, 8, 15, 18 or 20, wherein the downlink common signal or channel is a downlink common signal or channel specific to a non-wireless communication device; wherein the downlink common signal or channel includes one or more of the following items: a synchronization signal block (SSB), a system information block (SIB), a discovery burst, or a paging.

[0129] 23. A method according to any one of solutions 7, 8, 15 or 18, wherein the extended period is determined by one or more of the following items: configured by high-level parameters, multiples of a default period value of a signal on a traditional secondary cell (SCell), multiples of a configurable maximum period value of a signal on a traditional SCell, or multiples of a configurable maximum period value of a signal on a traditional SCell.

[0130] 24. A method according to any one of solutions 9, 10, 12, 13 or 14, wherein the predetermined cell includes one or more of the following characteristics: configured by high-level parameters, being a primary cell (PCell) or a primary secondary cell (PSCell), being in the same timing advance group (TAG) as the target cell, being in the same frequency range as the target cell, or having a carrier frequency offset between the predetermined cell and the target cell that is not greater than a preset value.

[0131] 25. A method according to solution 2, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC-CE is an SCell activation / deactivation MAC CE or an enhanced SCell activation / deactivation MAC-CE; wherein the reserved bit value is used to indicate the type of SCell to be activated or deactivated.

[0132] 26. A method according to solution 2, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC CE is the first MAC-CE indicating the SCell state; and wherein the MAC-CE includes a field, wherein each bit in the field corresponds to a cell state of a cell having a cell index.

[0133] 27. A method according to Solution 2, wherein one or more of the first to fifth indication information is carried by DCI signaling, and the DCI also includes one or more of the following items: a first bit field, in which a bitmap or code point indicates an active BWP of an SCell or SCell group; a second bit field, in which a bitmap or code point indicates a BWP status of an SCell or SCell group; a third bit field, in which a bitmap or code point indicates a status of an SCell or SCell group; a fourth bit field, in which a bitmap or code point indicates activation or deactivation of one or more SCells or SCell groups; or a fifth bit field, in which each bit is associated with a group of resource signal resource sets.

[0134] 28. The method of solution 27, wherein hybrid automatic repeat request acknowledgement (HARQ-ACK) information in response to the DCI is provided after a duration from the last symbol of the PDCCH, wherein the duration is a positive value.

[0135] 29. A method of wireless communication (e.g., Figure 6 ), including: sending, by a network device, one or more of the following information to a wireless communication device: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication (602); wherein the first to fifth indication information include one or more of the following information: activation of a cell or a cell group (as described in Section 1.1), deactivation of a cell or a cell group (as described in Section 1.1), a cell state indication (as described in Section 1.2), a BWP indication (as described in Section 1.3), a BWP state indication (as described in Section 1.4), or a reference signal indication (as described in Section 1.5) (604); and operating the wireless communication device according to the sent indication (606). A detailed discussion is described in Section 1 (Indication Information).

[0136] 30. The method according to solution 29, wherein one or more of the first to fifth indication information is carried by one or more of the following transmission signals: RRC signaling, MAC-CE signaling, DCI signaling, reference signal, or system information block. The detailed discussion is described in Section 2 (Indication Signaling).

[0137] 31. The method according to solution 29, wherein the first indication indicates one or more of the following: activation of a specific cell or a specific cell group or deactivation of a specific cell or a specific cell group.

[0138] 32. The method according to solution 31, wherein the specific cell or the specific cell group further includes: a first cell in which only uplink reception is performed.

[0139] 33. The method according to solution 31, wherein the specific cell or the specific cell group further includes: a second cell to which the restricted downlink service is transmitted.

[0140] 34. A method according to solution 33, wherein the network device performs one or more of the following operations: receiving SRS, receiving CSI report, detecting PUCCH, receiving PUSCH, detecting RACH, sending downlink common signals or channels with an extended period, not sending downlink common signals or channels, sending CSI-RS, or sending on-demand reference signals.

[0141] 35. A method according to solution 33, wherein a specific cell or a specific cell group is configured with a special downlink BWP; wherein the network device performs one or more of the following operations on the special downlink BWP: sending a downlink common signal or channel with an extended period on the BWP, not sending a downlink common signal or channel on the BWP, sending a CSI-RS on the BWP, sending an on-demand reference signal on the BWP, not sending a PDCCH on the BWP, or not sending a DL-SCH on the BWP.

[0142] 36. The method according to solution 32, wherein the uplink BWP on the first cell is associated with the downlink BWP on the predetermined cell.

[0143] 37. The method according to solution 32, wherein the first cell is associated with a predetermined cell.

[0144] 38. The method of solution 29, wherein the first indication further indicates deactivation of a downlink carrier, wherein uplink transmission corresponding to the deactivated downlink carrier is not stopped.

[0145] 39. A method according to any of solutions 36 or 38, wherein an uplink carrier or an uplink BWP on a first cell is associated with a downlink BWP on a predetermined cell, and wherein the uplink carrier is associated with the predetermined cell; wherein the downlink carrier is deactivated.

[0146] 40. A method according to any one of solutions 36 to 39, wherein the uplink carrier or the uplink BWP on the first cell is associated with the downlink BWP on the predetermined cell and further includes one or more of the following items: scheduling information of the first cell is sent on the associated BWP, indication information of the first cell is sent on the associated BWP, a reference RS used to obtain the spatial relationship of UL transmission in the first cell is detected on the associated BWP, or the UL BWP has the same SCS as the associated BWP.

[0147] 41. A method according to any one of solutions 36 to 39, wherein the uplink carrier or the first cell is associated with the predetermined cell and further includes one or more of the following items: an indication of the uplink carrier or the first cell is sent on the predetermined cell, the corresponding timing reference frame of the uplink carrier or the first cell belongs to the predetermined cell, the uplink carrier or the first cell has the same system frame boundary and system frame number as the predetermined cell, the uplink carrier or the first cell uses the same timing advance group as the predetermined cell, the same timing advance offset value is applied to both the uplink carrier or the first cell and the predetermined cell, the uplink frame in the uplink carrier or the first cell corresponds to the downlink frame in the predetermined cell, the downlink reference signal of the uplink transmission in the uplink carrier or the first cell is sent on the predetermined cell, or the path loss difference between the uplink carrier or the first cell and the predetermined cell is not greater than the offset.

[0148] 42. A method according to Solution 29, wherein the second indication indicates the SCell state of one or more SCells or SCell groups; wherein the SCell state includes a first SCell state; and wherein when the SCell is in the first SCell state, the network device performs one or more of the following operations: not sending PDCCH, not sending downlink common signals or channels, sending downlink common signals or channels with an extended period, sending CSI-RS, sending on-demand reference signals, receiving SRS, receiving CSI reports, detecting PUCCH, receiving PUSCH, or receiving RACH.

[0149] 43. The method of solution 29, wherein the third indication indicates a specific BWP in one or more SCells or SCell groups.

[0150] 44. The method of solution 43, wherein the specific BWP comprises at least one of a first downlink BWP or a second downlink BWP.

[0151] 45. A method according to any one of solutions 43 or 44, wherein the network device performs one or more of the following items on the first BWP: not sending PDCCH on the BWP; not sending DL-SCH on the BWP; not sending downlink common signals / channels on the BWP; sending downlink common signals / channels with an extended period on the BWP; sending CSI-RS on the BWP; or sending on-demand RS or SSB on the BWP.

[0152] 46. ​​A method according to Solution 29, wherein the fourth indicates a specific BWP state in an SCell or SCell group; wherein the specific BWP state includes one or more of the following items: specifically configured for a specific downlink BWP, configured with predefined characteristics, configured for any BWP, or configured for any BWP except a dormant BWP.

[0153] 47. The method according to solution 46, wherein when the activated BWP is in a specific BWP state, the network device does not send a downlink common signal or channel on the activated BWP, or sends a restricted downlink common signal or channel.

[0154] 48. A method according to solution 29, wherein the fifth indication includes an indication of one or more reference signals or reference signal resources; wherein the reference signal resources are configured for one or more of the following items: fast SCell activation, synchronization, automatic gain control (AGC), transmit timing adjustment, or beam management.

[0155] 49. A method according to any one of solutions 34, 35, 42, 45 or 47, wherein the downlink common signal or channel is a downlink common signal or channel specific to a non-wireless communication device; wherein the downlink common signal or channel includes one or more of the following items: SSB, SIB, discovery burst or paging.

[0156] 50. A method according to any one of solutions 34, 35, 42 or 45, wherein the extended period is determined by one or more of the following items: configured by high-level parameters, multiples of a default period value of a signal on a traditional secondary cell (SCell), a configurable maximum period value of a signal on a traditional SCell, or multiples of a configurable maximum period value of a signal on a traditional SCell.

[0157] 51. A method according to any one of solutions 36, 37, 39, 40 or 41, wherein the predetermined cell includes one or more of the following characteristics: configured by high-level parameters, being a PCell or a PSCell, being located in the same TAG as the target cell, being located in the same frequency range as the target cell, or the carrier frequency offset used for the interval between the predetermined cell and the target cell is not greater than a preset value.

[0158] 52. A method according to solution 30, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC-CE is an SCell activation / deactivation MAC CE or an enhanced SCell activation / deactivation MAC-CE; wherein the reserved bit value is used to indicate the type of SCell to be activated or deactivated.

[0159] 53. A method according to solution 30, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC CE is the first MAC-CE indicating the SCell state; wherein the MAC-CE includes a field, each bit in the field corresponds to a cell state of a cell with a cell index.

[0160] 54. A method according to solution 30, wherein one or more of the first to fifth indication information is carried by DCI signaling, and the DCI also includes one or more of the following: a first bit field, in which a bitmap or code point indicates the active BWP of the SCell or SCell group; a second bit field, in which a bitmap or code point indicates the BWP status of the SCell or SCell group; a third bit field, in which a bitmap or code point indicates the status of the SCell or SCell group; a fourth bit field, in which a bitmap or code point indicates the activation or deactivation of one or more SCells or SCell groups; or a fifth bit field, in which each bit is associated with a group of resource signal resource sets.

[0161] 55. The method of solution 54, wherein the HARQ-ACK information in response to the DCI is provided after a duration from the last symbol of the PDCCH, wherein the duration is a positive value.

[0162] 56. An apparatus for wireless communication, the apparatus comprising a processor configured to implement the method according to any one of solutions 1 to 55.

[0163] 57. A computer-readable medium having stored thereon a code which, when executed by a processor, causes the processor to implement a method according to any one of solutions 1 to 55.

[0164] Some of the embodiments described herein are described in the general context of a method or process, which in one embodiment can be implemented by a computer program product embodied in a computer-readable medium, including computer executable instructions, such as program code, executed by a computer in a networked environment. Computer-readable media may include removable and non-removable storage devices, including but not limited to read-only memory (ROM), random access memory (RAM), compact disc (CD), digital versatile disc (DVD), etc. Therefore, computer-readable media may include non-transitory storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform specific tasks or implement specific abstract data types. Computer executable instructions or processor executable instructions, associated data structures, and program modules represent examples of program codes for executing the steps of the methods disclosed herein. A specific sequence of such executable instructions or associated data structures represents an example of corresponding actions for implementing the functions described in such steps or processes.

[0165] Some disclosed embodiments can be implemented as devices or modules using hardware circuits, software or a combination thereof. For example, a hardware circuit implementation can include discrete analog and / or digital components, for example, these components are integrated as a part of a printed circuit board. Alternatively, additionally, the disclosed components or modules can be implemented as application specific integrated circuits (Application Specific Integrated Circuit, ASIC) and / or field programmable gate arrays (Field Programmable Gate Array, FPGA) devices. Some implementations can additionally or alternatively include a digital signal processor (Digital Signal Processor, DSP), which is a dedicated microprocessor with an architecture optimized for the operational requirements of digital signal processing associated with the functionality disclosed in the present application. Similarly, various components or subcomponents within each module can be implemented with software, hardware or firmware. Any connection method and medium known in the art can be used to provide connectivity between modules and / or components within the module, including but not limited to communicating via the Internet, wired or wireless networks using appropriate protocols.

[0166] Although this document contains many details, these details should not be interpreted as limitations on the scope of the claimed invention or the invention that may be claimed, but should be interpreted as descriptions of features specific to a particular embodiment. Certain features described in the context of separate embodiments in this document 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 separately in multiple embodiments or in any suitable sub-combination. In addition, although features may be described as working in certain combinations and even initially claimed, in some cases, one or more features from the claimed combination may be cut out from the combination, and the claimed combination may be for a variant of a sub-combination or a sub-combination. Similarly, although operations are depicted in a particular order in the figure, this should not be understood as requiring the operations to be performed in the particular order or sequence order shown, or performing all the operations shown, to achieve the desired result.

[0167] Only a few implementations and examples are described, and other implementations, enhancements, and variations can be made based on what is described and illustrated in this document.

Claims

1. A method of wireless communication, comprising: Receiving, by the wireless communication device, one or more of the following information from the network device: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication; The first to fifth indication information include one or more of the following information: a cell or cell group activation indication, a cell or cell group deactivation indication, a cell status indication, a bandwidth part (BWP) indication, a BWP status indication, or a reference signal indication; and The wireless communication device is operated based on the receiving.

2. The method according to claim 1, wherein one or more of the first to fifth indication information are carried by one or more of the following transmission signals: radio resource control (RRC) signaling, media access control-control unit (MAC-CE) signaling, downlink control information (DCI) signaling, reference signal, or system information block (SIB). 3 . The method according to claim 1 , wherein the first indication indicates one or more of the following items: activation of a specific cell or a specific cell group, or deactivation of a specific cell or a specific cell group.

4. The method according to claim 3, wherein the specific cell or the specific cell group further comprises: The first cell in which only uplink transmission is performed.

5. The method of claim 4, wherein the wireless communication device performs one or more of the following operations: sending a sounding reference signal (SRS), reporting channel state information (CSI), sending a physical uplink control channel (PUCCH), sending a physical shared control channel (PUSCH), sending a random access channel (RACH), or sending a preamble.

6. The method according to claim 3, wherein the specific cell or the specific cell group further comprises: A second cell in which the restricted downlink service is performed.

7. The method according to claim 6, wherein the wireless communication performs one or more of the following operations: sending SRS, reporting CSI, sending PUCCH, sending PUSCH, sending RACH, processing downlink common signals or channels with an extended period, not processing downlink common signals or channels, detecting CSI-RS, or detecting on-demand reference signals.

8. The method according to claim 6, wherein the specific cell or the specific cell group is configured with a special downlink BWP; The wireless communication device performs one or more of the following operations on the special downlink BWP: processing a downlink common signal or channel with an extended period, not processing a downlink common signal or channel, detecting a CSI-RS, detecting an on-demand reference signal, not monitoring a PDCCH, or not receiving a DL-SCH.

9. The method of claim 4, wherein the uplink BWP on the first cell is associated with a downlink BWP on a predetermined cell.

10. The method of claim 4, wherein the first cell is associated with a predetermined cell.

11. The method of claim 1, wherein the first indication further indicates deactivation of a downlink carrier, wherein the uplink transmission corresponding to the deactivated downlink carrier is not stopped.

12. The method according to any one of claims 9 or 11, wherein the uplink carrier or the uplink BWP on the first cell is associated with the downlink BWP on the predetermined cell, or the uplink carrier is associated with the predetermined cell; and Wherein the downlink carrier is deactivated.

13. The method according to any one of claims 9 to 12, wherein the uplink carrier or the uplink BWP on the first cell, being associated with the downlink BWP on the predetermined cell further comprises one or more of the following items: the scheduling information for the target is sent on the associated BWP, the indication information for the target is sent on the associated BWP, a reference RS used to obtain a spatial relationship of UL transmission in the target is detected on the associated BWP, or the UL BWP and the associated BWP have the same subcarrier spacing (SCS); and The target is the first cell or an uplink carrier.

14. The method according to any one of claims 9 to 12, wherein the uplink carrier or the first cell is associated with the predetermined cell and further comprises one or more of the following items: an indication for the uplink carrier or the first cell is sent on the predetermined cell, the corresponding timing reference frame of the uplink carrier or the first cell belongs to the predetermined cell, the uplink carrier or the first cell has the same system frame boundary and system frame number as the predetermined cell, the uplink carrier or the first cell uses the same timing advance group as the predetermined cell, the same timing advance offset value is applied to both the uplink carrier or the first cell and the predetermined cell, the uplink frame in the uplink carrier or the first cell corresponds to the downlink frame in the predetermined cell, the downlink reference signal of the uplink transmission in the uplink carrier or the first cell is sent on the predetermined cell, or the path loss difference between the uplink carrier or the first cell and the predetermined cell is not greater than the offset.

15. The method according to claim 1, wherein the second indication indicates an SCell state of one or more SCells or SCell groups; wherein the SCell state comprises a first SCell state; and When the SCell is in the first SCell state, the wireless communication device performs one or more of the following operations: not monitoring PDCCH, not processing downlink common signals or channels, processing the downlink common signals or channels with an extended period, detecting CSI-RS, receiving on-demand reference signals, sending SRS, reporting CSI, sending PUCCH, sending PUSCH, or sending RACH. The method according to claim 1 , wherein the third indication indicates a specific BWP in one or more SCells or SCell groups.

17. The method of claim 16, wherein the specific BWP comprises at least one of the first downlink BWP or a second downlink BWP.

18. The method according to any one of claims 16 or 17, wherein the wireless communication device performs one or more of the following items on the first BWP: not monitoring PDCCH; not receiving DL-SCH; not processing downlink common signals or channels; processing the downlink common signals or channels with an extended period; detecting CSI-RS; or receiving on-demand RS or SSB.

19. The method of claim 1, wherein the fourth indication indicates a specific BWP state in one or more SCells or SCell groups; The specific BWP state includes one or more of the following: configured specifically for a specific downlink BWP, configured with predefined characteristics, configured for any BWP, or configured for any BWP except a dormant BWP.

20. The method of claim 19, wherein when the activated BWP is in the specific BWP state, the wireless communication device does not receive a downlink common signal or channel, or receives a restricted downlink common signal or channel, on the activated BWP.

21. The method of claim 1, wherein the fifth indication comprises an indication of one or more reference signals or reference signal resources; The reference signal resources are configured for one or more of the following items: fast SCell activation, synchronization, automatic gain control (AGC), transmission timing adjustment, or beam management.

22. The method according to any one of claims 7, 8, 15, 18 or 20, wherein the downlink common signal or channel is a downlink common signal or channel that is not wireless communication device specific; The downlink common signal or channel includes one or more of the following items: a synchronization signal block (SSB), a system information block (SIB), a discovery burst, or a paging.

23. A method according to any one of claims 7, 8, 15 or 18, wherein the extended period is determined by one or more of the following items: configured by high-level parameters, multiples of a default period value of the signal on a traditional secondary cell (SCell), a configurable maximum period value for the signal on a traditional SCell, or multiples of the configurable maximum period value of the signal on a traditional SCell.

24. A method according to any one of claims 9, 10, 12, 13 or 14, wherein the predetermined cell includes one or more of the following characteristics: configured by high-level parameters, being a primary cell (PCell) or a primary secondary cell (PSCell), being located in the same timing advance group (TAG) as the target cell, being located in the same frequency range as the target cell, or the carrier frequency offset used for the interval between the predetermined cell and the target cell is not greater than a preset value.

25. The method according to claim 2, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC-CE is an SCell activation / deactivation MAC CE or an enhanced SCell activation / deactivation MAC-CE; and The reserved bit value is used to indicate the type of SCell to be activated or deactivated.

26. The method according to claim 2, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC CE is a first MAC-CE indicating a SCell state; and The MAC-CE comprises a field, wherein each bit in the field corresponds to a cell status of a cell having a cell index.

27. A method according to claim 2, wherein one or more of the first to fifth indication information are carried by DCI signaling, and the DCI also includes one or more of the following items: a first bit field, wherein a bitmap or code point indicates the active BWP of the SCell or the SCell group; a second bit field, wherein the bitmap or the code point indicates the BWP status of the SCell or the SCell group; a third bit field, wherein the bitmap or the code point indicates the status of the SCell or the SCell group; a fourth bit field, wherein the bitmap or the code point indicates the activation or deactivation of one or more of the SCells or the SCell groups; or a fifth bit field, wherein each bit is associated with a group of resource signal resource sets.

28. The method of claim 27, wherein hybrid automatic repeat request acknowledgement (HARQ-ACK) information in response to the DCI is provided after a duration from a last symbol of the PDCCH, wherein the duration is a positive value.

29. A method of wireless communication, comprising: The network device sends one or more of the following information to the wireless communication device: a first indication, a second indication, a third indication, a fourth indication, or a fifth indication; The first to fifth indication information include one or more of the following information: activation of a cell or a cell group, deactivation of the cell or the cell group, a cell state indication, a BWP indication, a BWP state indication, or a reference signal indication; and The wireless communication device is operated according to the transmitted indication.

30. The method according to claim 29, wherein one or more of the first to fifth indication information are carried by one or more of the following transmission signals: RRC signaling, MAC-CE signaling, DCI signaling, reference signal, or system information block.

31. The method according to claim 29, wherein the first indication indicates one or more of the following items: activation of a specific cell or a specific cell group, or deactivation of a specific cell or a specific cell group.

32. The method according to claim 31, wherein the specific cell or the specific cell group further comprises: Only uplink reception is performed in the first cell.

33. The method according to claim 31, wherein the specific cell or the specific cell group further comprises: The second cell to which the restricted downlink service is transmitted.

34. The method of claim 33, wherein the network device performs one or more of the following operations: receiving SRS, receiving CSI report, detecting PUCCH, receiving PUSCH, detecting RACH, sending downlink common signals or channels with an extended period, not sending downlink common signals or channels, sending CSI-RS, or sending on-demand reference signals.

35. The method according to claim 33, wherein the specific cell or the specific cell group is configured with a special downlink BWP; The network device performs one or more of the following operations on the special downlink BWP: sending a downlink common signal or channel with an extended period on the BWP, not sending a downlink common signal or channel on the BWP, sending a CSI-RS on the BWP, sending an on-demand reference signal on the BWP, not sending the PDCCH on the BWP, or not sending DL-SCH on the BWP.

36. The method of claim 32, wherein the uplink BWP on the first cell is associated with a downlink BWP on a predetermined cell.

37. The method of claim 32, wherein the first cell is associated with a predetermined cell.

38. The method of claim 29, wherein the first indication further indicates deactivation of a downlink carrier, wherein uplink transmission corresponding to the deactivated downlink carrier is not stopped.

39. The method according to any one of claims 36 or 38, wherein the uplink carrier or the uplink BWP on the first cell is associated with the downlink BWP on the predetermined cell, and wherein the uplink carrier is associated with the predetermined cell; Wherein the downlink carrier is deactivated.

40. The method according to any one of claims 36 to 39, wherein the uplink carrier or the uplink BWP on the first cell, being associated with the downlink BWP on the predetermined cell, further comprises one or more of the following items: scheduling information for the first cell is sent on the associated BWP, indication information for the first cell is sent on the associated BWP, a reference RS used to obtain a spatial relationship of UL transmission in the first cell is detected on the associated BWP, or the UL BWP has the same SCS as the associated BWP.

41. A method according to any one of claims 36 to 39, wherein the uplink carrier or the first cell is associated with the predetermined cell and further includes one or more of the following items: an indication of the uplink carrier or the first cell is sent on the predetermined cell, the corresponding timing reference frame of the uplink carrier or the first cell belongs to the predetermined cell, the uplink carrier or the first cell has the same system frame boundary and system frame number as the predetermined cell, the uplink carrier or the first cell and the predetermined cell use the same timing advance group, the same timing advance offset value is applied to both the uplink carrier or the first cell and the predetermined cell, the uplink frame in the uplink carrier or the first cell corresponds to the downlink frame in the predetermined cell, the downlink reference signal of the uplink transmission in the uplink carrier or the first cell is sent on the predetermined cell, or the path loss difference between the uplink carrier or the first cell and the predetermined cell is not greater than the offset.

42. The method of claim 29, wherein the second indication indicates an SCell state of one or more SCells or SCell groups; wherein the SCell state comprises a first SCell state; and When the SCell is in the first SCell state, the network device performs one or more of the following operations: not sending PDCCH, not sending downlink common signals or channels, sending the downlink common signals or channels with an extended period, sending CSI-RS, sending on-demand reference signals, receiving SRS, receiving CSI reports, detecting PUCCH, receiving PUSCH, or receiving RACH.

43. The method of claim 29, wherein the third indication indicates a specific BWP in one or more SCells or SCell groups.

44. The method of claim 43, wherein the particular BWP comprises at least one of the first downlink BWP or a second downlink BWP.

45. A method according to any one of claims 43 or 44, wherein the network device performs one or more of the following items on the first BWP: not sending the PDCCH on the BWP; not sending the DL-SCH on the BWP; not sending the downlink common signal / channel on the BWP; sending the downlink common signal / channel with an extended period on the BWP; sending the CSI-RS on the BWP; or sending an on-demand RS or SSB on the BWP.

46. ​​The method of claim 29, wherein the fourth indicates a specific BWP state in one or more SCells or SCell groups; The specific BWP state includes one or more of the following: configured specifically for a specific downlink BWP, configured with predefined characteristics, configured for any BWP, or configured for any BWP except a dormant BWP.

47. The method of claim 46, wherein when the activated BWP is in the specific BWP state, the network device does not transmit a downlink common signal or channel on the activated BWP, or transmits a restricted downlink common signal or channel.

48. The method of claim 29, wherein the fifth indication comprises an indication of one or more reference signals or reference signal resources; The reference signal resources are configured for one or more of the following items: fast SCell activation, synchronization, automatic gain control (AGC), transmission timing adjustment, or beam management.

49. The method of any one of claims 34, 35, 42, 45 or 47, wherein the downlink common signal or channel is a non-wireless communication device-specific downlink common signal or channel; The downlink common signal or channel includes one or more of the following items: SSB, SIB, discovery burst, or paging.

50. A method according to any one of claims 34, 35, 42 or 45, wherein the extended period is determined by one or more of the following items: configured by high-level parameters, multiples of the default period value of the signal on a traditional secondary cell (SCell), a configurable maximum period value for the signal on a traditional SCell, or multiples of the configurable maximum period value of the signal on a traditional SCell.

51. A method according to any one of claims 36, 37, 39, 40 or 41, wherein the predetermined cell includes one or more of the following characteristics: configured by high-level parameters, being a PCell or a PSCell, being located in the same TAG as the target cell, being located in the same frequency band range as the target cell, or the carrier frequency offset used for the interval between the predetermined cell and the target cell is not greater than a preset value.

52. The method according to claim 30, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC-CE is an SCell activation / deactivation MAC CE or an enhanced SCell activation / deactivation MAC-CE; and The reserved bit value is used to indicate the type of SCell to be activated or deactivated.

53. The method according to claim 30, wherein one or more of the first to fifth indication information are carried by MAC-CE signaling; wherein the MAC CE is a first MAC-CE indicating a SCell state; and The MAC-CE comprises a field, wherein each bit in the field corresponds to a cell status of a cell having a cell index.

54. A method according to claim 30, wherein one or more of the first to fifth indication information are carried by DCI signaling, and the DCI also includes one or more of the following items: a first bit field, wherein a bitmap or code point indicates the active BWP of the SCell or the SCell group; a second bit field, wherein the bitmap or the code point indicates the BWP status of the SCell or the SCell group; a third bit field, wherein the bitmap or the code point indicates the status of the SCell or the SCell group; a fourth bit field, wherein the bitmap or the code point indicates the activation or deactivation of one or more of the SCells or the SCell groups; or a fifth bit field, wherein each bit is associated with a group of resource signal resource sets.

55. The method of claim 54, wherein HARQ-ACK information in response to the DCI is provided after a duration from a last symbol of the PDCCH, wherein the duration is a positive value.

56. An apparatus for wireless communication, the apparatus comprising a processor configured to implement the method according to any one of claims 1 to 55.

57. A computer readable medium having stored thereon codes which, when executed by a processor, cause the processor to implement the method according to any one of claims 1 to 55.

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