Signal Processing Method

Abstract

Disclosed is a wireless communication method, the method including: transmitting, by a wireless communication terminal, a wake-up request including wake-up information at one or more wake-up occasions to a wireless communication node, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

Description

[Technical Field]

[0001] This document relates generally to wireless communications, and more particularly to fifth generation (5G) communications. [Background technology]

[0002] The bandwidth of a 5G cell is more than five times that of a 4G cell. In addition, high-complexity 64 / 32-channel massive MIMO equipment is used outdoors, leading to extremely high power consumption of 5G base stations.

[0003] Currently, gNodeBs (gNBs) can reduce power consumption by using several energy-saving techniques such as channel shutdown and carrier shutdown.

[0004] According to the current specification, cells can be deactivated to save energy. This solution requires the network to hand over the UE to another cell, which has a significant impact on system performance.

[0005] Furthermore, the UE cannot access the cell when needed, which affects the user experience. Therefore, it is necessary to find a solution to ensure energy saving and minimize the impact on the user experience.

[0006] Switching to sleep mode or turning off some RF components when they are not needed is an effective way to reduce network power consumption. For example, carriers can be deactivated when there is no UE access. The number of Tx / Rx antennas can be reduced when the traffic load is low.

[0007] In NR, cell activation and deactivation are triggered by network devices without UE feedback. However, when a UE moves to a new cell or a burst service occurs, the base station cannot obtain the request in a timely manner, which causes significant delays and affects the user experience. Summary of the Invention [Problem to be solved by the invention]

[0008] To overcome the above problems, the present disclosure proposes several methods and systems, as illustrated in the following examples and embodiments. [Means for solving the problem]

[0009]

[0009] One aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes transmitting, by a wireless communication terminal, a wake-up request to a wireless communication node, the wake-up request including wake-up information at one or more wake-up occasions, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

[0010] Another aspect of the present disclosure relates to a wireless communication method, in one embodiment, the wireless communication method includes receiving, by a wireless communication node, from a wireless communication terminal, a wake-up request including wake-up information at one or more wake-up occasions, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

[0011] Another aspect of the present disclosure relates to a wireless communication terminal. In one embodiment, the wireless communication terminal includes a transceiver and a processor. The processor is configured to transmit a wake-up request to a wireless communication node via the transceiver, the wake-up request including wake-up information at one or more wake-up opportunities, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

[0012] Another aspect of the present disclosure relates to a wireless communication node. In one embodiment, the wireless communication node includes a transceiver and a processor. The processor is configured to receive, from a wireless communication terminal via the transceiver, a wake-up request including wake-up information at one or more wake-up opportunities, where the wake-up information includes at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

[0013] Various embodiments may preferably implement the following features. Preferably, the wake-up request is sent according to at least one of a measurement result, a random access requirement, or a data transmission requirement.

[0014] Preferably, the activated cell includes at least one of a predetermined cell, a cell having a particular configuration, a cell from which the wireless communication node detects wake-up information, a cell having a coverage range within the activated cell, or a cell adjacent to the connected cell.

[0015] Preferably, the wake-up request is sent via the first cell to activate the first cell or the second cell in a particular mode.

[0016] Preferably, the cell deactivation request indicates that the cell is to be deactivated or that the cell is to be put into a particular mode.

[0017] Preferably, the feedback information includes at least one of whether network state reconfiguration is supported, Radio Resources Management (RRM) measurement information, capabilities of the wireless communication terminal, or assistance information of the wireless communication terminal.

[0018] Preferably, activating a cell includes at least one of activating a secondary cell (SCell), putting a cell of a particular mode into normal mode, changing a particular configuration of the cell, or starting transmission of a synchronization signal / physical broadcast channel block (SSB) of the cell.

[0019] Preferably, the wake-up request is carried by a sequence-based signal, and the generation of the wake-up request is associated with at least one of a state identification, a cell index, a root sequence index, an initialization seed, or a sequence identifier (ID).

[0020] Preferably, the wake-up occasion is associated with at least one of a higher layer parameter, a paging cycle, an SSB transmission period, a discovery burst duty cycle, a predetermined value, one or more system frame numbers, a state transition of the wireless communication node, or instruction information.

[0021] Preferably, the one or more transmission opportunities for the wake-up request are associated with a number of SSB indices or are a specific number of consecutive opportunities, the specific number being the number of SSBs actually transmitted.

[0022] Preferably, the SSB index and one or more transmission opportunities of the wake-up request are mapped to an association period, and the length of the association period is the number of periods of the transmission opportunity or the number of SSB periods.

[0023] Preferably, the reference signal for the wake-up request is configured by one or more higher layer parameters for spatial relationship information.

[0024] Preferably, the reference signals include at least one of CSI-RS resources in the NZP-CSI-RS-ResourceSet, CSI-RS resources for tracking, Tracking Reference Signal (TRS) resources, Sounding Reference Signal (SRS), resources for beam management, or SSBs associated with a Physical Cell ID (PCI) that is the same as or different from the PCI of the serving cell.

[0025] Preferably, the wake-up information is conveyed by a sequence-based signal transmitted on the PRACH resources or by one or more random access preambles having at least one of a specific PRACH preamble format, a specific Radio Network Temporary Identifier (RNTI), or a PRACH resource.

[0026] Preferably, the wake-up information is carried by a physical uplink shared channel PUSCH and is scheduled by a Random Access Response (RAR) uplink, UL, grant, or PUSCH for a Type 2 random access procedure.

[0027] Preferably, the bit field of the wake-up information is Uplink Control Information (UCI) carried on a PUSCH scheduled by a RAR UL grant or a PUSCH for a Type 2 random access procedure.

[0028] Preferably, the wake-up information is multiplexed with one or more Uplink Shared Channel (UL-SCH) bits.

[0029] Preferably, the bit field of the wake-up information includes one bit indicating whether to activate the cell or deactivate the cell, or the bit field of the wake-up information includes multiple bits indicating the state of the network.

[0030] Preferably, the wake-up information is carried by a Physical Uplink Control Channel (PUCCH), and in response to a number of fields being transmitted on the PUCCH, a UCI sequence is generated according to a priority configuration, with higher priority fields being mapped to the beginning of the UCI sequence.

[0031] Preferably, the UCI sequence is multiplexed with the PUSCH according to at least one of a priority index or a default configuration.

[0032] Preferably, in response to the wake-up request and the UL transmission overlapping in the same slot on the serving cell, the wake-up request is transmitted according to at least one of a priority index or a default configuration.

[0033] Preferably, in response to the wake-up request and the UL transmission overlapping in the same slot on the serving cell, one of the lower priority wake-up request and the UL transmission is not transmitted or is transmitted after another of the higher priority wake-up request and the UL transmission is transmitted.

[0034] The present disclosure also relates to a computer program product comprising computer readable program medium code stored thereon, the code, when executed by a processor, causing the processor to implement a wireless communication method as set forth in any one of the preceding methods.

[0035] The exemplary embodiments disclosed herein are directed to providing features that will be readily apparent from reference to the following description in conjunction with the accompanying drawings. In accordance with various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and not limitation, and it will be apparent to those skilled in the art upon reading this disclosure that various modifications to the disclosed embodiments may be made while remaining within the scope of the present disclosure.

[0036] Therefore, the present disclosure is not limited to the example embodiments and applications described and illustrated herein. Moreover, the specific order and / or hierarchy of things in the methods disclosed herein is merely exemplary. Based on design preferences, the specific order or hierarchy of things in a disclosed method or process can be rearranged while remaining within the scope of the present disclosure. Thus, those skilled in the art will understand that the methods and techniques disclosed herein present various things or operations in a sample order, and that the present disclosure is not limited to the specific order or hierarchy presented, unless otherwise specified.

[0037] These and other aspects and implementations thereof are explained in more detail in the drawings, description, and claims. [Brief explanation of the drawings]

[0038] [Figure 1] 1 shows a schematic diagram of a wireless terminal according to one embodiment of the present disclosure. [Figure 2] 1 illustrates a schematic diagram of a radio network node according to one embodiment of the present disclosure. [Figure 3]1 illustrates a flowchart of a wireless communication method according to one embodiment of the present disclosure. [Figure 4] 1 illustrates a flowchart of a wireless communication method according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE INVENTION

[0039] FIG. 1 is a schematic diagram of a wireless terminal 10 (e.g., a wireless communication terminal) according to one embodiment of the present disclosure. The wireless terminal 10 may be, but is not limited to, a user equipment (UE), a mobile phone, a laptop, a tablet computer, an e-book reader, or a portable computer system. The wireless terminal 10 may include a processor 100, such as a microprocessor or an application-specific integrated circuit (ASIC), a storage unit 110, and a communication unit 120. The storage unit 110 may be any data storage device that stores program code 112 that is accessed and executed by the processor 100. Embodiments of the storage unit 112 include, but are not limited to, a subscriber identity module (SIM), a read-only memory (ROM), a flash memory, a random access memory (RAM), a hard disk, and an optical data storage device. The communication unit 120 may be a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 100. In one embodiment, the communication unit 120 transmits and receives signals via at least one antenna 122 shown in FIG. 1.

[0040] In one embodiment, storage unit 110 and program code 112 may be omitted and processor 100 may include a storage unit having program code stored therein.

[0041] The processor 100 may perform any of the steps of the illustrated embodiments at the wireless terminal 10, for example, by executing the program code 112.

[0042] The communication unit 120 may be a transceiver. Alternatively or additionally, the communication unit 120 may combine a transmitting unit and a receiving unit configured to transmit and receive signals, respectively, to and from a wireless network node (e.g., a base station).

[0043] 2 relates to a schematic diagram of a radio network node (e.g., wireless communication node) 20 according to one embodiment of the present disclosure. The radio network node 20 may be, but is not limited to, a satellite, a base station (BS), a smart node, a network entity, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN), a next generation RAN (NG-RAN) node, a gNB, an eNB, a gNB central unit (gNB-CU), a gNB distributed unit (gNB-DU), a data network, a core network, or a radio network controller (RNC). Furthermore, the radio network node 20 may comprise (perform) at least one network function, such as an Access and Mobility Management Function (AMF), a Session Management Function (SMF), a User Place Function (UPF), a Policy Control Function (PCF), or an Application Function (AF). The radio network node 20 may include a processor 200, such as a microprocessor or an ASIC, a storage unit 210, and a communication unit 220. The storage unit 210 may be any data storage device that stores program code 212 that is accessed and executed by the processor 200. Examples of the storage unit 212 include, but are not limited to, a SIM, a ROM, a flash memory, a RAM, a hard disk, and an optical data storage device.The communication unit 220 may be a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to the processing results of the processor 200. In one example, the communication unit 220 transmits and receives signals via at least one antenna 222 shown in FIG.

[0044] In one embodiment, the storage unit 210 and the program code 212 may be omitted. The processor 200 may include a storage unit having the program code stored therein.

[0045] The processor 200 may perform any of the steps described in the illustrated embodiment in the radio network node 20, for example by executing the program code 212.

[0046] The communication unit 220 may be a transceiver. Alternatively or additionally, the communication unit 220 may combine a transmitting unit and a receiving unit configured to transmit and receive signals, respectively, to a wireless terminal (e.g., user equipment or another wireless network node).

[0047] In one embodiment, the UE may transmit a wake-up request to a network device (e.g., a base station) on a WUS (e.g., wake-up signal or channel) (hereinafter referred to as WUS), where the wake-up signal or channel includes wake-up information and indicates the operation of the network device.

[0048] WUS containing cell activation request In one embodiment, the wake-up information includes a cell activation request.

[0049] In some embodiments, whether the UE transmits a wake-up signal or channel is associated with at least one of a measurement result (e.g., the UE transmits a WUS when the RSRP is lower than a threshold, or the UE detects neither SSB nor CSI-RS within a duration), a data transmission requirement (e.g., the UE has a bursty service to transmit, or the UE has a large uplink data transmission requirement), or a random access requirement.

[0050] In some embodiments, the particular cell to be activated is associated with at least one of a predetermined cell, a cell having a particular configuration (e.g., a sleep cell, a dormant cell, an energy saving cell, or an SSB-less cell), a cell from which the network device detects wake-up information, a cell whose coverage range is within the connected cell, or a cell adjacent to the connected cell, where the connected cell is the activated cell.

[0051] In some embodiments, the network device detects a wake-up signal / channel on a specific cell and activates the specific cell when wake-up information is received. For example, if the RSRP is lower than a threshold, the UE transmits a wake-up signal / channel, the network device detects a wake-up signal / channel on a specific cell, and if wake-up information is detected, the network device activates the specific cell. In some embodiments, the network device detects a wake-up signal / channel on a normal cell and activates the specific cell when wake-up information is received. For example, when the UE needs to transmit a large amount of uplink data, it transmits a wake-up signal / channel on the connected cell along with a cell activation request, and the network device detects a wake-up signal / channel on the connected cell and activates the specific cell.

[0052] In some embodiments, on the UE side, the UE transmits a wake-up signal / channel on an SpCell cell. For example, the UE transmits a wake-up signal / channel when a large amount of uplink data needs to be transmitted. In some other embodiments, the UE transmits a wake-up signal / channel on a specific cell. The WUS configuration can be obtained from an anchor cell, which can be an SpCell, a cell in the same TAG as the specific cell, or a cell with the same coverage area.

[0053] WUS with cell deactivation request In one embodiment, the UE transmits a wake-up signal / channel with a cell deactivation request when there is no UL transmission request within a duration or when the UE can obtain synchronization information, SIB, from another cell.

[0054] WUS containing feedback information to the network In one embodiment, the feedback information includes one or more of: whether to support network state reconfiguration, RRM measurement information (e.g., information related to at least one of RSRP, RSRQ, RSSI, and SINR values), UE capabilities, or UE assistance information (e.g., UE capabilities, UE requirements for delay, bandwidth UE preferences, service scenario of the UE).

[0055] WUS containing the indication indicates DL signal or channel transmission In one embodiment, the DL signal or channel includes at least one of SSB, on-demand RS, TRS, or CSI-RS. When a WUS is detected, the network transmits the DL signal or channel in a predetermined manner. For example, the network transmits the DL signal or channel N times, or the network transmits the DL signal or channel within a certain duration.

[0056] In one embodiment, the cell deactivation operation refers to a cell being deactivated or a cell being switched to a particular cell, for example, the cell is a sleep cell, a hibernate cell, an energy saving cell, or an SSB-less cell.

[0057] In one embodiment, the cell activation operation refers to at least one of activating an SCell, switching a particular cell, such as bringing the SCell out of a sleep state and making it a normal cell, changing the energy saving configuration of the SCell (e.g., lower bandwidth and / or less common signaling), or starting transmission of SSBs on the SCell.

[0058] WUS with wake-up instruction information carried in sequence-based signals In one embodiment, the wake-up instruction information is carried in a sequence-based signal.

[0059] 1) Generation of wake-up signal In some embodiments, the format of the wake-up signal is based on a ZC (Zadoff Chu) sequence or a PN (Pseudo Noise) sequence.

[0060] In some embodiments, generation of the wake-up signal is associated with at least one of a state identification (e.g., a state index, an activation or deactivation instruction), a cell index, a root sequence index, an initialization seed, or a sequence ID. For example, different wake-up instruction information may correspond to different root sequence indexes, and the wake-up instruction information may be detected according to the different root sequence indexes. In another example, different wake-up instruction information may correspond to different initialization seeds, and each initialization seed corresponds to one function of the WUS.

[0061] 2) Opportunity to transmit a wake-up signal In some embodiments, the transmission opportunities are periodic, and the transmission opportunity period of the signal is determined by (or is associated with) at least one of a higher layer configuration (e.g., a set of transmission opportunity periods is configured, one of which can be selected), a paging cycle (e.g., the transmission opportunity period of the signal is equal to the paging cycle or a multiple of the paging cycle), an SSB transmission period, a discovery burst duty cycle, or a predetermined value (e.g., transmission opportunities exist only on specified System Frame Numbers (SFNs), and therefore the number of transmission opportunities allowed per 1024 radio frames determines the transmission opportunity period).

[0062] In some embodiments, the transmission opportunity is at a specific SFN. For example, the specific SFN is equal to a fixed value times N. In another example, the specific SFN is equal to 0, i.e., the transmission opportunity exists only on frame 0.

[0063] In some embodiments, the transmission opportunity is determined by (or associated with) at least one of a gNB state transition, indication information (e.g., indication information carried by a SIB).

[0064] In some embodiments, the transmission opportunity is associated with a duty cycle and an SSB.

[0065] 3) SSB transmission opportunity mapping In some embodiments, wake-up signal transmission opportunities are associated with N SS / PBCH block indices. If N is greater than 1, the wake-up signals transmitted on the transmission resources associated with the SS / PBCH block indices are in ascending order. For example, if N=2, the first half of the wake-up signal resources correspond to SS / PBCH block index=0, and the second half of the wake-up signal resources correspond to SS / PBCH block index=1. The wake-up signal resources may be sorted by ascending frequency resource index for frequency-multiplexed WUS transmission opportunities, by ascending time resource index for time-multiplexed WUS transmission opportunities, and / or by ascending index for WUS transmission slots.

[0066] In some embodiments, the wake-up signal transmission opportunities are S consecutive opportunities, where S is the number of SSBs actually transmitted. Each WUS transmission opportunity corresponds to one SS / PBCH block index. In some embodiments, only N of the S WUS opportunities are used for WUS transmission, and the N opportunities correspond to the N SS / PBCH block indices with the best measurement results.

[0067] In some embodiments, the SS / PBCH block index is mapped to a WUS transmission opportunity in an association period. In some embodiments, the association period is from frame 0. In some embodiments, the association period is a specific time in the WUS transmission opportunity period. In some embodiments, the association period is a specific time in the SSB period.

[0068] In some embodiments, if there is no WUS opportunity associated with the SS / PBCH block index or no SSB associated with the WUS opportunity, in some embodiments, if a WUS opportunity is not associated with the SS / PBCH block index or there is no SSB associated with the WUS opportunity, the opportunity is used for WUS transmission with reference to at least one of the closest PRACH opportunity, historical transmission information, default configuration, SRS resources, CSI-RS resources, and SSBs transmitted in other cells.

[0069] 4) WUS Resources In some embodiments, the WUS is transmitted only on the SpCell. In some embodiments, the WUS is transmitted on the cell that is activated.

[0070] In some embodiments, the WUS resource set may be configured by a higher layer parameter. In each resource set, R≧1 WUS resources may be configured, each resource corresponding to one of the wake-up instruction sequences.

[0071] In some embodiments, the Reference RS for the WUS is configured by one or more higher layer parameters for spatial relationship information. The Reference RS is one or more of the CSI-RS resources in the NZP-CSI-RS-ResourceSet, or CSI-RS resources for tracking, TRS resources, SRS resources for "beam management", or SS / PBCH blocks associated with a PCI that is the same as or different from the PCI of the serving cell.

[0072] WUS with wake-up indication information carried by RA-based channel WUS with wake-up indication information carried by PRACH In one embodiment, the wake-up indication information is carried by a Physical Random Access Channel (PRACH).

[0073] In some embodiments, the wake-up indication information is carried by one or more random access preambles having at least one of a specific PRACH preamble format, a specific RNTI, and a PRACH resource.

[0074] In some embodiments, the wake-up indication information is carried by a sequence-based signal transmitted on the PRACH resource.

[0075] WUS with wake-up indication information carried by PUSCH In one embodiment, the wake-up indication is carried by a PUSCH scheduled by the RAR UL grant or a PUSCH for a Type 2 random access procedure.

[0076] In some embodiments, the wake-up indication bit field is uplink control information (UCI) carried on a PUSCH scheduled by an RAR UL grant or a PUSCH for a Type 2 random access procedure.

[0077]

number

[0078] In some embodiments, the wake-up indication bit field comprises one bit. In some embodiments, a value A in the bit field indicates to change the current configuration, and a value B indicates to maintain the current configuration.

[0079] In some embodiments, a value A of the bit field indicates a first configuration and a value B indicates a second configuration.

[0080] In some embodiments, a value of A in the bit field indicates support for state reconfiguration, and a value of B indicates no support for state reconfiguration.

[0081] In some embodiments, a value A of the bit field indicates to activate the SCell and a value B indicates to deactivate the SCell, where A is equal to 0 and B is equal to 1, or A is equal to 1 and B is equal to 0.

[0082] In some embodiments, the wake-up indication bit field includes T bits, where T > 1. In some examples, T is determined by (or related to) the number of states (N) configured for the network, e.g., T = ceil(log2N), where ceil(x) means rounding up to an integer.

[0083] WUS with wake-up indication information carried by PUCCH In one embodiment, the wake-up indication is carried by the PUCCH.

[0084]

number

[0085] In some embodiments, the UCI may be multiplexed with the PUSCH according to at least one of a priority index or a default configuration.

[0086] In some embodiments, the wake-up indication bit field comprises one bit. In some embodiments, a value A in the bit field indicates to change the current configuration, and a value B indicates to maintain the current configuration.

[0087] In some embodiments, a value A of the bit field indicates a first configuration and a value B indicates a second configuration.

[0088] In some embodiments, a value of A in the bit field indicates support for state reconfiguration, and a value of B indicates no support for state reconfiguration.

[0089] In some embodiments, a value A of the bit field indicates to activate the SCell and a value B indicates to deactivate the SCell, where A is equal to 0 and B is equal to 1, or A is equal to 1 and B is equal to 0.

[0090] In some embodiments, the wake-up indication bit field includes T bits, where T > 1. In some examples, T is determined by (or related to) the number of states (N) configured for the network, e.g., T = ceil(log2N), where ceil(x) means rounding up to an integer.

[0091] WUS with wake-up indication information carried by PUSCH scheduled by DCI In one embodiment, the WUS has wake-up indication information carried by a PUSCH scheduled by a DCI.

[0092] In some embodiments, the WUS is a gNB requested feedback. The WUS comprises a bit field, where a value A of the bit field indicates support for changing the current configuration and a value B indicates support for maintaining the current configuration. A is equal to 0 and B is equal to 1, or A is equal to 1 and B is equal to 0.

[0093] WUS with wake-up indication information carried by higher layer signaling In one embodiment, the wake-up indication is carried by higher layer signaling, for example MAC CE or RRC signaling.

[0094] In some embodiments, the wake-up indication is carried by an SRS-based signal.

[0095] Resource Contention In one embodiment, when WUS and other UL transmissions (e.g., SRS, PUCCH, PUSCH, PRACH) overlap within the same slot on the serving cell, the UE transmits signals or channels according to at least one of a priority index, a default configuration, where the priority index is configured by one or more higher layer parameters.

[0096] For example, the UE will not transmit a WUS if the WUS opportunity conflicts with a PRACH resource by default. In another example, if a PUSCH or PUCCH with a higher priority level overlaps in time with a WUS transmission in the serving cell, the UE will not transmit a WUS in the overlapping symbols.

[0097] In some embodiments, when WUS and other UL transmissions overlap in the same slot on the serving cell, lower priority signals or channels are not transmitted.

[0098] In some embodiments, when WUS and other UL transmissions overlap within the same slot on the serving cell, higher priority signals or channels are transmitted before lower priority signals or channels.

[0099] In some embodiments, if the PUSCH and WUS are transmitted in the same slot on the serving cell, the UE may be configured to transmit the WUSS after the transmission of the PUSCH and corresponding DM-RS when the PUSCH is configured with a higher priority level.

[0100] In some embodiments, if a PUCCH or PUSCH with a higher priority level overlaps in time with a WUS transmission on the serving cell, the UE does not transmit a WUS in the overlapping symbols.

[0101] Resource Configuration In one embodiment, resources for WUS opportunities are configured by at least one of the SIB, the RRC, the core network, and the Non-Access Stratum (NAS).

[0102] In some embodiments, the resources for the WUS opportunity are the same in one or more cells, or one or more tracking areas, or one or more RAN notification areas.

[0103] In some other embodiments, resources for WUS opportunities are available for the activated cell and a specific cell, where the specific cell is at least one of a cell configured by the RRC, the core network, or the NAS, a PCell, a PSCell, a cell belonging to the same timing advance group (TAG) as the activated cell, or a cell belonging to the same frequency range as the activated cell.

[0104] FIG. 3 shows a flowchart of a wireless communication method according to one embodiment of the present disclosure. FIG. 4 shows a flowchart of a wireless communication method according to one embodiment of the present disclosure.

[0105] A wireless communication method according to an embodiment of the present disclosure is provided. In one embodiment, the wireless communication method may be performed using a wireless communication terminal (e.g., a UE). In one embodiment, the wireless communication terminal may be implemented using, but is not limited to, the wireless communication terminal 70 described above.

[0106] As shown in FIG. 3, in one embodiment, a wireless communication method includes transmitting, by a wireless communication terminal, a wake-up request to a wireless communication node, the wake-up request including wake-up information at one or more wake-up occasions, wherein the wake-up information includes at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

[0107] Further details on this point can be found by reference to the paragraphs above and will not be repeated here.

[0108] Another wireless communication method according to an embodiment of the present disclosure is provided. In one embodiment, the wireless communication method may be performed using a wireless communication node (e.g., a base station or a gNB). In one embodiment, the wireless communication terminal may be implemented using, but is not limited to, the wireless communication node 80 described above.

[0109] As shown in FIG. 4, in one embodiment, a wireless communication method includes receiving, by a wireless communication node, from a wireless communication terminal, a wake-up request including wake-up information at one or more wake-up occasions, wherein the wake-up information includes at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

[0110] Further details on this point can be found by reference to the paragraphs above and will not be repeated here.

[0111] While various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only, and not by way of limitation. Similarly, various figures may depict example architectures or configurations provided to enable those skilled in the art to understand example features and functionality of the present disclosure. However, such skilled artisans will understand that the present disclosure is not limited to the example architectures or configurations shown, but can be implemented using various alternative architectures and configurations. Moreover, as will be understood by those skilled in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any of the above-described example embodiments.

[0112] It is also understood that any reference to an element herein using a designation such as "first," "second," etc., does not generally limit the quantity or order of those elements. Rather, these designations may be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to a first and a second element does not imply that only two elements may be used or that the first element must in any way precede the second element.

[0113] Additionally, those skilled in the art will understand that information and signals may be represented using any of a variety of different technologies and techniques. For example, the data, instructions, commands, information, signals, bits, and symbols that may be referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0114] Those skilled in the art will further appreciate that any of the various illustrative logical blocks, units, processors, means, circuits, methods, and functions described in connection with the embodiments disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of the two), firmware, various forms of program or design code incorporating instructions (which may be referred to herein for convenience as "software" or "software units"), or any combination of these technologies.

[0115] To clearly illustrate this interchangeability with hardware, firmware, and software, various illustrative components, blocks, units, circuits, and things have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software, or a combination of these technologies, depends on the particular application and design constraints imposed on the overall system. Those skilled in the art may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as a departure from the scope of the present disclosure. According to various embodiments, a processor, device, component, circuit, structure, machine, unit, etc., can be configured to perform one or more of the functions described herein. The term “configured for” or “configured to,” as used herein with respect to a specified operation or function, refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed, and / or arranged to perform the specified operation or function.

[0116] Furthermore, those skilled in the art will understand that the various example logical blocks, units, devices, components, and circuits described herein can be implemented in or performed by an integrated circuit (IC), which may include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic device, or any combination thereof. The logical blocks, units, and circuits may further include an antenna and / or transceiver for communicating with various components within a network or device. The general-purpose processor may be a microprocessor, although in the alternative, the processor may be any conventional processor, controller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration for performing the functions described herein. If implemented in software, the functions may be stored as one or more instructions or code on a computer-readable medium. Thus, the steps of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.

[0117] Computer-readable media includes both computer storage media and communication media, including any medium that can enable a computer program or code to be transferred from one place to another. Storage media can be any available medium that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0118] As used herein, the term "unit" refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Furthermore, for purposes of explanation, various units are described as separate units, but as will be apparent to one skilled in the art, two or more units may be combined to form a single unit that performs associated functions according to embodiments of the present disclosure.

[0119] Additionally, memory or other storage devices, as well as communication components, may be used in embodiments of the present disclosure. It will be appreciated that, for clarity, the above description describes embodiments of the present disclosure with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements, or domains may be used without detracting from the present disclosure. For example, functions shown to be performed by separate processing logic elements or controllers may be performed by the same processing logic element or controller. Thus, references to specific functional units do not indicate a strict logical or physical structure or organization, but merely to suitable means for providing the described functionality.

[0120] Various modifications to the embodiments described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the claims. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the novel features and principles disclosed herein as set forth in the following claims.

Claims

1. 1. A wireless communication method, comprising:

1. A wireless communication method comprising: transmitting, by a wireless communication terminal, a wake-up request including wake-up information at one or more wake-up occasions to a wireless communication node, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

2. The wireless communication method of claim 1 , wherein the wake-up request is transmitted according to at least one of a measurement result, a random access requirement, or a data transmission requirement.

3. 3. The wireless communication method according to claim 1, wherein the activated cells include at least one of a predetermined cell, a cell having a particular configuration, a cell from which the wireless communication node detects wake-up information, a cell having a coverage range within the activated cell, or a cell adjacent to a connected cell.

4. The wireless communication method according to claim 1 or 2, wherein the wake-up request is transmitted via a first cell to activate the first cell or a second cell in a particular mode.

5. The wireless communication method of claim 1 , wherein the cell deactivation request indicates that a cell is to be deactivated or that a cell is to be placed into a particular mode.

6. The wireless communication method according to any one of claims 1 to 5, wherein the feedback information includes at least one of whether network state reconfiguration is supported, Radio Resource Management (RRM) measurement information, capabilities of the wireless communication terminal, or assistance information of the wireless communication terminal.

7. 7. The wireless communication method according to claim 1, wherein activating the cell includes at least one of activating a secondary cell (SCell), placing the cell of a specific mode in a normal mode, changing a specific configuration of the cell, or starting transmission of a synchronization signal / physical broadcast channel block (SSB) of the cell.

8. 8. The wireless communication method according to claim 1, wherein the wake-up request is carried by a sequence-based signal, and the generation of the wake-up request is related to at least one of a state identification, a cell index, a root sequence index, an initialization seed, or a sequence identifier (ID).

9. The wireless communication method according to any one of claims 1 to 8, wherein the wake-up opportunity is associated with at least one of a higher layer parameter, a paging cycle, an SSB transmission period, a discovery burst duty cycle, a predetermined value, one or more system frame numbers, a state transition of the wireless communication node, or instruction information.

10. 10. The wireless communication method of claim 9, wherein the one or more transmission opportunities for the wake-up request are associated with several SSB indices or are a specific number of consecutive opportunities, the specific number being the number of SSBs actually transmitted.

11. 11. The wireless communication method of claim 10, wherein the SSB index and the one or more transmission opportunities of the wake-up request are mapped to an association period, and the length of the association period is the number of periods of the transmission opportunity or the number of SSB periods.

12. The wireless communication method according to any one of claims 1 to 11, wherein the reference signal for the wake-up request is configured by one or more higher layer parameters for spatial relationship information.

13. 13. The wireless communication method of claim 12, wherein the reference signal includes at least one of a CSI-RS resource in an NZP-CSI-RS-ResourceSet, a CSI-RS resource for tracking, a Tracking Reference Signal (TRS) resource, a Sounding Reference Signal (SRS), a resource for beam management, or an SSB associated with a Physical Cell ID (PCI) that is the same as or different from a PCI of a serving cell.

14. 8. The wireless communication method according to claim 1, wherein the wake-up information is conveyed by a sequence-based signal transmitted on PRACH resources, or by one or more random access preambles having a specific PRACH preamble format, a specific Radio Network Temporary Identifier (RNTI), or at least one of the PRACH resources.

15. 8. The wireless communication method according to claim 1, wherein the wake-up information is carried by a Physical Uplink Shared Channel (PUSCH) and is scheduled by a Random Access Response (RAR) uplink (UL) grant or by a PUSCH for a Type 2 random access procedure.

16. 16. The wireless communication method of claim 15, wherein the wake-up information bit field is uplink control information (UCI) carried on a PUSCH scheduled by a RAR UL grant or a PUSCH for a type 2 random access procedure.

17. The wireless communication method according to claim 15 or 16, wherein the wake-up information is multiplexed with one or more Uplink Shared Channel (UL-SCH) bits.

18. The wireless communication method according to any one of claims 15 to 17, wherein the bit field of the wake-up information includes one bit indicating activating a cell or deactivating a cell, or the bit field of the wake-up information includes multiple bits indicating a state of the network.

19. 8. The wireless communication method according to claim 1, wherein the wake-up information is carried by a Physical Uplink Control Channel (PUCCH), and in response to a plurality of fields being transmitted on the PUCCH, a UCI sequence is generated according to a priority configuration, and a field with a higher priority is mapped to the beginning of the UCI sequence.

20. 20. The wireless communication method of claim 19, wherein the UCI sequence is multiplexed with a PUSCH according to at least one of a priority index or a default configuration.

21. 21. The wireless communication method of claim 1, wherein in response to the wake-up request and UL transmission overlapping in the same slot on a serving cell, the wake-up request is transmitted according to at least one of a priority index or a default configuration.

22. 22. The wireless communication method according to claim 1, wherein, in response to the wake-up request and the UL transmission overlapping in the same slot on a serving cell, one of the wake-up request and the UL transmission having a lower priority is not transmitted or is transmitted after another one of the wake-up request and the UL transmission having a higher priority is transmitted.

23. 1. A wireless communication method, comprising:

1. A wireless communication method comprising: receiving, by a wireless communication node, from a wireless communication terminal, a wake-up request including wake-up information at one or more wake-up occasions, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

24. 24. The wireless communication method of claim 23, wherein the wake-up request is transmitted according to at least one of a measurement result, a random access requirement, or a data transmission requirement.

25. 25. The wireless communication method according to claim 23 or 24, wherein the activated cells include at least one of a predetermined cell, a cell having a particular configuration, a cell from which the wireless communication node detects wake-up information, a cell having a coverage range within an activated cell, or a cell adjacent to a connected cell.

26. 25. The wireless communication method according to claim 23 or 24, wherein the wake-up request is transmitted via a first cell to activate the first cell or a second cell in a particular mode.

27. 24. The wireless communication method of claim 23, wherein the cell deactivation request indicates that a cell is to be deactivated or placed into a particular mode.

28. The wireless communication method according to any one of claims 23 to 27, wherein the feedback information includes at least one of whether network state reconfiguration is supported, radio resource management (RRM) measurement information, capabilities of the wireless communication terminal, or assistance information of the wireless communication terminal.

29. The wireless communication method according to any one of claims 23 to 28, wherein activating the cell includes at least one of activating a secondary cell (SCell), placing the cell in a specific mode in a normal mode, changing a specific configuration of the cell, or starting transmission of a synchronization signal / physical broadcast channel block (SSB) of the cell.

30. 30. The wireless communication method according to any one of claims 23 to 29, wherein the wake-up request is carried by a sequence-based signal, and the generation of the wake-up request is associated with at least one of a state identification, a cell index, a root sequence index, an initialization seed, or a sequence identifier (ID).

31. The wireless communication method according to any one of claims 23 to 30, wherein the wake-up opportunity is associated with at least one of a higher layer parameter, a paging cycle, an SSB transmission period, a discovery burst duty cycle, a predetermined value, one or more system frame numbers, a state transition of the wireless communication node, or instruction information.

32. 32. The wireless communication method of claim 31 , wherein the one or more transmission opportunities for the wake-up request are associated with several SSB indices or are a specific number of consecutive opportunities, the specific number being the number of SSBs actually transmitted.

33. 33. The wireless communication method of claim 32, wherein the SSB index and the one or more transmission opportunities of the wake-up request are mapped to an association period, and the length of the association period is a number of periods of the transmission opportunity or a number of SSB periods.

34. The wireless communication method according to any one of claims 23 to 33, wherein the reference signal for the wake-up request is configured by one or more higher layer parameters for spatial relationship information.

35. 35. The wireless communication method of claim 34, wherein the reference signal includes at least one of a CSI-RS resource in an NZP-CSI-RS-ResourceSet, a CSI-RS resource for tracking, a tracking reference signal (TRS) resource, a sounding reference signal (SRS), a resource for beam management, or an SSB associated with a physical cell ID (PCI) that is the same as or different from the PCI of a serving cell.

36. 30. The wireless communication method according to claim 23, wherein the wake-up information is conveyed by a sequence-based signal transmitted on a PRACH resource, or by one or more random access preambles having a specific PRACH preamble format, a specific Radio Network Temporary Identifier (RNTI), or at least one of the PRACH resources.

37. 30. The wireless communication method according to claim 23, wherein the wake-up information is carried by a Physical Uplink Shared Channel (PUSCH) and is scheduled by a Random Access Response (RAR) Uplink (UL) grant or a PUSCH for a Type 2 Random Access procedure.

38. 38. The wireless communication method of claim 37, wherein the bit field of the wake-up information is uplink control information (UCI) carried on a PUSCH scheduled by a RAR UL grant or a PUSCH for a type 2 random access procedure.

39. 39. The wireless communication method of claim 37 or 38, wherein the wake-up information is multiplexed with one or more uplink shared channel (UL-SCH) bits.

40. A wireless communication method according to any one of claims 37 to 39, wherein the bit field of the wake-up information includes one bit indicating activating a cell or deactivating a cell, or the bit field of the wake-up information includes multiple bits indicating a state of the network.

41. 30. The wireless communication method according to claim 23, wherein the wake-up information is carried by a physical uplink control channel (PUCCH), and in response to a plurality of fields being transmitted on the PUCCH, a UCI sequence is generated according to a priority configuration, and a field with a higher priority is mapped to the beginning of the UCI sequence.

42. 42. The wireless communication method of claim 41, wherein the UCI sequence is multiplexed with a PUSCH according to at least one of a priority index or a default configuration.

43. 43. The wireless communication method of claim 23, wherein in response to the wake-up request and UL transmission overlapping in the same slot on a serving cell, the wake-up request is transmitted according to at least one of a priority index or a default configuration.

44. 44. The wireless communication method according to claim 23, wherein, in response to the wake-up request and the UL transmission overlapping in the same slot on a serving cell, one of the wake-up request and the UL transmission having a lower priority is not transmitted or is transmitted after another one of the wake-up request and the UL transmission having a higher priority is transmitted.

45. A wireless communication terminal, A transceiver; a processor configured to transmit a wake-up request including wake-up information at one or more wake-up opportunities to a wireless communication node via the transceiver, the wake-up information including at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

46. The wireless communication terminal of claim 35, wherein the processor is further configured to perform a wireless communication method according to any one of claims 2 to 21.

47. A wireless communication node comprising: a transceiver; a processor configured to receive, from a wireless communication terminal via the transceiver, a wake-up request including wake-up information at one or more wake-up occasions, wherein the wake-up information includes at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node;

48. The wireless communication node according to claim 47, wherein the processor is further configured to perform a wireless communication method according to any one of claims 23 to 44.

49. 45. A computer program product comprising computer readable program medium code stored thereon, said code, when executed by a processor, causing said processor to implement a wireless communication method according to any one of claims 1 to 44.

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