Signal processing method

Abstract

A wireless communication method is disclosed. The method comprises: sending, by a wireless communication terminal, a wake-up request to a wireless communication node at one or more wake-up opportunities, the wake-up request comprising wake-up information, the wake-up information comprising at least one of a cell activation request, a cell deactivation request, or feedback information to the wireless communication node.

Description

[0001] The present application is directed generally to wireless communications, and in particular to fifth generation (5G) communications.

[0002] The bandwidth of 5G cells is more than five times that of 4G cells. In addition, the use of highly complex 64 / 32-channel massive MIMO equipment outdoors results in extremely high power consumption of 5G base stations.

[0003] Currently, gNodeB (gNB) can reduce power consumption by using some energy-saving techniques such as channel closing, carrier closing, etc.

[0004] According to current specifications, cells can be deactivated for energy saving. With this solution, the NW must hand over the UE to other cells, which has a significant impact on system performance.

[0005] In addition, the UE cannot access the cell when needed, which affects the user experience. Therefore, it is necessary to find a solution that can ensure energy saving while minimizing the impact on user experience.

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

[0007] For NR, cell activation and deactivation are triggered by network equipment without feedback from UE. However, when the UE moves to a new cell or a burst service occurs, the base station cannot obtain the demand in time, which will cause huge delays and affect the user experience.

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

[0009] One aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes: at one or more wake-up opportunities, a wireless communication terminal sends a wake-up request to a wireless communication node, the wake-up request includes wake-up information, 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.

[0010] Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes: at one or more wake-up occasions, a wireless communication node receives a wake-up request from a wireless communication terminal, the wake-up request includes wake-up information, 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.

[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: send a wake-up request to a wireless communication node through the transceiver at one or more wake-up opportunities, the wake-up request including wake-up information, 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.

[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 a wake-up request from a wireless communication terminal through the transceiver at one or more wake-up opportunities, the wake-up request including wake-up information, 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.

[0013] Various embodiments may preferably implement the following features:

[0014] 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.

[0015] Preferably, the cell to be activated includes at least one of the following cells: a predefined cell, a cell with a specific configuration, a cell where the wireless communication node detects wake-up information, a cell within the coverage of the activated cell, or a cell adjacent to the connected cell.

[0016] Preferably, the wake-up request is sent through the first cell to activate the first cell or the second cell in the specific mode.

[0017] Preferably, the cell deactivation request indicates deactivating the cell or switching the cell to a specific mode.

[0018] Preferably, the feedback information includes at least one of the following: whether network status reconfiguration is supported, radio resource management (RRM) measurement information, capability of the wireless communication terminal, or assistance information of the wireless communication terminal.

[0019] Preferably, activating a cell includes at least one of: activating a secondary cell (SCell), converting a cell in a specific mode to a normal mode, changing a specific configuration on the cell, or starting transmission of a synchronization signal / physical broadcast channel block (SSB) on the cell.

[0020] Preferably, the wake-up request is carried by a sequence-based signal, wherein 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).

[0021] Preferably, the wake-up timing is associated with at least one of the following: a high-level parameter, a paging cycle, an SSB transmission cycle, a duty cycle of a discovery burst, a predefined value, one or more system frame numbers, a state transition of a wireless communication node, or indication information.

[0022] Preferably, one or more transmission opportunities of the wake-up request are associated with the number of SSB indexes, or are a certain number of consecutive opportunities, and the certain number is the number of SSBs actually transmitted.

[0023] Preferably, one or more transmission opportunities of the SSB index and the wake-up request are mapped in an associated period, and the length of the associated period is a multiple of the period of the transmission opportunity or a multiple of the SSB period.

[0024] Preferably, the reference signal of the spatial relationship information for the wake-up request is configured by one or more high-level parameters.

[0025] Preferably, the reference signal includes at least one of the following: CSI-RS resources in NZP-CSI-RS-ResourceSet, CSI-RS resources for tracking, tracking reference signal (TRS) resources, sounding reference signal (SRS), resources for beamManagement, or SSB associated with a physical cell ID (PCI) (the same as or different from the PCI of the serving cell).

[0026] Preferably, the wake-up information is carried by a sequence-based signal transmitted on a PRACH resource, or by one or more random access preambles, wherein the one or more random access preambles have at least one of the following: a specific PRACH preamble format, a specific radio network temporary identifier (RNTI) or a PRACH resource.

[0027] Preferably, the wake-up information is carried by a physical uplink shared channel (PUSCH) scheduled by a random access response (RAR) uplink (UL) grant or a PUSCH for a type 2 random access procedure.

[0028] Preferably, the bit field of the wake-up information is uplink control information (UCI), which is carried on a PUSCH scheduled by a RAR UL grant or a PUSCH used for a type 2 random access procedure.

[0029] Preferably, the wake-up information is multiplexed with one or more uplink shared channel (UL-SCH) bits.

[0030] Preferably, the bit field of the wake-up information includes one bit indicating activation of a cell or deactivation of a cell, or the bit field of the wake-up information includes more than one bit indicating a network status.

[0031] Preferably, the wake-up information is carried by a physical uplink control channel (PUCCH), and in response to more than one field transmitted on the PUCCH, a UCI sequence is generated according to a priority configuration, and a field with a high priority is mapped to the front of the UCI sequence.

[0032] Preferably, the UCI sequence is multiplexed with the PUSCH 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 time slot on the serving cell, the wake-up request is transmitted according to at least one of a priority index or a default configuration.

[0034] Preferably, in response to the wake-up request and UL transmission overlapping in the same time slot on the serving cell, the wake-up request and UL transmission having a lower priority are not transmitted, or are transmitted after the other of the wake-up request and UL transmission having a higher priority is transmitted.

[0035] The present disclosure also relates to a computer program product, which includes a computer-readable program medium code stored thereon. When executed by a processor, the code causes the processor to implement the wireless communication method described in any of the aforementioned methods.

[0036] The exemplary embodiments disclosed herein are intended to provide features that will become apparent by reference to the following description in conjunction with the accompanying drawings. According to various embodiments, exemplary systems, methods, devices, and computer program products are disclosed herein. However, it should be understood that these embodiments are presented by way of example and not limitation, and that it will be apparent to those of ordinary skill in the art who have read this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0037] Therefore, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. In addition, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary methods. Based on design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be rearranged while still remaining within the scope of the present disclosure. Therefore, it should be understood by those of ordinary skill in the art that the methods and techniques disclosed herein present various steps or actions in an example order, and the present disclosure is not limited to the specific order or hierarchy presented, unless otherwise explicitly stated.

[0038] The above and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims.

[0039] Figure 1 A schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0040] Figure 2 A schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0041] Figure 3 and Figure 4 A flow chart of a wireless communication method according to an embodiment of the present disclosure is shown.

[0042] Figure 1 A schematic diagram of a wireless terminal (e.g., a wireless communication terminal) 10 according to an embodiment of the present disclosure is provided. The wireless terminal 10 may be a user equipment (UE), a mobile phone, a laptop computer, a tablet computer, an e-book, or a portable computer system, and is not limited thereto. 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 a program code 112 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 send and receive signals (e.g., messages or packets) based on the processing results of the processor 100. In one embodiment, the communication unit 120 communicates with the computer via Figure 1 At least one antenna 122 is shown for transmitting and receiving signals.

[0043] In one embodiment, the storage unit 110 and the program code 112 may be omitted, and the processor 100 may include the storage unit with the stored program code.

[0044] The processor 100 may implement any one of the steps of the exemplary embodiments on the wireless terminal 10 , for example, by executing the program code 112 .

[0045] 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 to and from a wireless network node (eg, a base station), respectively.

[0046] Figure 2A schematic diagram of a radio network node (e.g., a wireless communication node) 20 according to an embodiment of the present disclosure is provided. The radio network node 20 may be a satellite, a base station (BS), an intelligent 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) node, a next generation RAN (NG-RAN) node, a gNB, an eNB, a gNB centralized unit (gNB-CU), a gNB distributed unit (gNB-DU), a data network, a core network, or a radio network controller (RNC), and is not limited thereto. In addition, the radio network node 20 may include (execute) at least one network function such as an access and mobility management function (AMF), a session management function (SMF), a user location function (UPF), a policy control function (PCF), an application function (AF), etc. 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 a program code 212 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 send and receive signals (e.g., messages or packets) according to the processing results of the processor 200. In one example, the communication unit 220 communicates with the processor 200 via Figure 2 At least one antenna 222 is shown for transmitting and receiving signals.

[0047] In one embodiment, the storage unit 210 and the program code 212 may be omitted. The processor 200 may include a storage unit storing program code.

[0048] The processor 200 may implement any of the steps described in the exemplary embodiments on the radio network node 20 , for example by executing the program code 212 .

[0049] 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 to and from a wireless terminal (eg, a user equipment or another wireless network node), respectively.

[0050] In one embodiment, the UE may send a wake-up request (e.g., a wake-up signal or channel) (hereinafter referred to as WUS) to a network device (e.g., a base station) during a WUS timing, wherein the wake-up signal or channel includes wake-up information and indicates the operation of the network device.

[0051] WUS including cell activation request

[0052] In one embodiment, the wake-up information includes a cell activation request.

[0053] In some embodiments, whether the UE sends a wake-up signal or channel is associated with at least one of the following: measurement results (for example, when RSRP is lower than a threshold, or when the UE does not detect any of SSB, CSI-RS within a duration, the UE sends a WUS), data transmission requirements (for example, the UE has a burst service to transmit, or the UE has a large amount of uplink data transmission requirements), and random access requirements.

[0054] In some embodiments, the specific cell to be activated is associated with at least one of the following cells: a predefined cell, a cell with a specific configuration (for example, a sleeping cell, a dormant cell, an energy-saving cell, or a cell without SSB), a cell in which the network device detects wake-up information, a cell whose coverage is within the connected cell, or a cell adjacent to the connected cell, wherein the connected cell is the activated cell.

[0055] In some embodiments, the network device detects a wake-up signal / channel on a specific cell and activates the specific cell upon receiving wake-up information. For example, when RSRP is below a threshold, the UE transmits a wake-up signal / channel, the network device detects a wake-up signal / channel on a specific cell, and when the 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 upon receiving wake-up information. For example, when a large amount of uplink data needs to be transmitted, the UE transmits a wake-up signal / channel with a cell activation request on the connected cell, the network device detects a wake-up signal / channel on the connected cell, and activates the specific cell.

[0056] In some embodiments, on the UE side, the UE transmits a wake-up signal / channel on the SpCell cell. For example, when a large amount of uplink data needs to be transmitted, the UE transmits a wake-up signal / channel. In some other embodiments, the UE transmits a wake-up signal / channel on a specific cell. The configuration of the WUS can be obtained from an anchor cell, where the anchor cell can be a SpCell, a cell in the same timing advance group (TAG) as the specific cell, or a cell with the same coverage area.

[0057] WUS including cell deactivation request

[0058] In one embodiment, when there is no UL transmission requirement within the duration, or when the UE can obtain synchronization information, SIB from another cell, the UE transmits a wake-up signal / channel with a cell deactivation request.

[0059] WUS including feedback information to the network

[0060] In one embodiment, the feedback information includes one or more of the following: whether network status reconfiguration is supported, RRM measurement information (for example, the information is related to at least one of the values ​​of RSRP, RSRQ, RSSI and SINR), UE capabilities or UE auxiliary information (for example, UE capabilities, UE requirements for delay, UE preferred bandwidth, UE service scenarios).

[0061] WUS including an indication of DL signal or channel transmission

[0062] In one embodiment, the DL signal or channel includes at least one of SSB, RS on demand, TRS or CSI-RS. When WUS is detected, the network transmits the DL signal or channel in a predefined manner. For example, the network transmits the DL signal or channel N times, or the network transmits the DL signal or channel for a duration.

[0063] In one embodiment, the cell deactivation operation refers to that the cell is deactivated, or the cell is converted into a specific cell, such as the cell is a sleeping cell, a dormant cell, an energy-saving cell, or a non-SSB cell.

[0064] In one embodiment, the cell activation operation refers to at least one of the following operations: activating the SCell, converting a specific cell to a normal cell (such as ending the sleep state of the SCell and becoming a normal cell), changing the energy-saving configuration on the SCell (for example, lower bandwidth and / or less frequent signal transmission); or starting to transmit SSB on the SCell.

[0065] WUS with wake-up indication information carried in sequence-based signals

[0066] In one embodiment, the wake-up indication information is carried in a sequence-based signal.

[0067] 1) Generation of wake-up signal

[0068] In some embodiments, the format of the wake-up signal is based on a ZC (Zadoff-Chu) sequence or a PN (pseudo-noise) sequence.

[0069] In some embodiments, the generation of the wake-up signal is related to at least one of the following: a state identifier (e.g., a state index, an activation or deactivation indication), a cell index, a root sequence index, an initialization seed, or a sequence ID. For example, different wake-up indication information may correspond to different root sequence indexes, and the wake-up indication information may be detected according to different root sequence indexes. In another example, different wake-up indication information may correspond to different initialization seeds, each initialization seed corresponding to a function of the WUS.

[0070] 2) Timing of transmission of wake-up signal

[0071] In some embodiments, the transmission opportunity is periodic, and the transmission opportunity period of the signal is determined by (or associated with) at least one of the following: a high-level configuration (for example, a set of transmission opportunity periods are configured and one of them can be selected), a paging cycle (for example, the transmission opportunity period of the signal is equal to the paging cycle or equal to a multiple of the paging cycle), an SSB transmission period, a duty cycle of the discovery burst, or a predefined value (for example, the transmission opportunity only exists on a specified SFN (system frame number), so the number of transmission opportunities allowed on 1024 radio frames determines the transmission opportunity period).

[0072] In some embodiments, the transmission opportunity is on a specific SFN. For example, the specific SFN is equal to N times of a fixed value. In another example, the specific SFN is equal to 0, that is, the transmission opportunity only exists on frame 0.

[0073] In some embodiments, the transmission timing is determined by (or associated with) at least one of: gNB state transition, indication information (e.g., indication information carried by SIB).

[0074] In some embodiments, the transmission opportunity is associated with a duty cycle and SSB.

[0075] 3) Transmission timing with SSB mapping

[0076] In some embodiments, the transmission timing of the wake-up signal is associated with the number N of SS / PBCH block indices. When N is greater than 1, the wake-up signals transmitted on the transmission resources associated with the SS / PBCH block index are in increasing order. For example, N=2, the first half of the wake-up signal resources corresponds to SS / PBCH block index=0, and the second half of the wake-up signal resources corresponds to SS / PBCH group index=1. The wake-up signal resources can be sorted in increasing order of frequency resource indices of WUS transmission timings that are frequency multiplexed, in increasing order of time resource indices of WUS transmission timings that are time multiplexed, and / or in increasing order of indices of WUS transmission time slots.

[0077] In some embodiments, the transmission opportunity of the wake-up signal is S consecutive opportunities, where S is the number of SSBs actually transmitted. Each WUS transmission opportunity corresponds to an SS / PBCH block index. In some embodiments, only N WUS opportunities are used for WUS transmission, where the N opportunities correspond to the N SS / PBCH block indices with the best measurement results.

[0078] In some embodiments, the SS / PBCH block index is mapped to the WUS transmission opportunity in an association period. In some embodiments, the association period starts at frame 0. In some embodiments, the association period is a specific multiple of the WUS transmission opportunity period. In some embodiments, the association period is a specific multiple of the SSB period.

[0079] In some embodiments, when the WUS opportunity is not associated with an SS / PBCH block index or the SSB opportunity is not associated with the WUS. In some embodiments, when the WUS opportunity is not associated with an SS / PBCH block index or the SSB associated with the WUS opportunity does not exist, these opportunities for WUS transmission refer to at least one of the following: the most recent PRACH opportunity, historical transmission information, default configuration, SRS resources, CSI-RS resources, SSB transmitted on another cell.

[0080] 4) WUS resources

[0081] In some embodiments, the WUS is transmitted only on the SpCell. In some embodiments, the WUS is transmitted on the cell to be activated.

[0082] In some embodiments, the WUS resource set may be configured by high-level parameters. In each resource set, R≥1 WUS resources may be configured, and each resource corresponds to one of the wake-up indication sequences.

[0083] In some embodiments, the reference RS for the spatial relationship information of the WUS is configured by one or more high-layer parameters. The reference RS is one or more of the following: CSI-RS resources in NZP-CSI-RS-ResourceSet, or CSI-RS resources for tracking, TRS resources, SRS resources for "beamManagement", or SS / PBCH blocks associated with a PCI that is the same as or different from the PCI of the serving cell.

[0084] WUS with wake-up indication information carried by RA-based channels

[0085] WUS with wake-up indication information carried by PRACH

[0086] In one embodiment, the wake-up indication information is carried by a physical random access channel (PRACH).

[0087] In some embodiments, the wake-up indication information is carried by one or more random access preambles, and the one or more random access preambles have at least one of the following: a specific PRACH preamble format, a specific RNTI, and a PRACH resource.

[0088] In some embodiments, the wake-up indication information is carried by a sequence-based signal transmitted on the PRACH resource.

[0089] WUS with wake-up indication information carried by PUSCH

[0090] In one embodiment, the wake-up indication is carried by the PUSCH scheduled by the RAR UL grant or the PUSCH used for the type 2 random access procedure.

[0091] In some embodiments, the wake-up indication bit field is uplink control information (UCI) carried on a PUSCH scheduled by a RAR UL grant or a PUSCH used for a type 2 random access procedure.

[0092] In some embodiments, the wake-up indication is multiplexed with the UL-SCH bit (if any). When more than one control information is carried on the PUSCH, a UCI bit sequence associated with the priority index is generated. For example, a wake-up indication bit is transmitted on the PUSCH associated with priority index 1, and another indication bit (if any) is transmitted on the PUSCH associated with priority index 0, then the UCI sequence can be generated as a0, a1, a2, a3, ..., a A-1 , Where A is the number of coded bits used for wake-up indication, A (1) is the number of bits used for another indication (if any). When only the wake-up indication bits and the UL-SCH are transmitted on the PUSCH, the wake-up indication is multiplexed with the data coding bits.

[0093] In some embodiments, the wake-up indication bit field comprises one bit.

[0094] In some embodiments, a value A of the bit field indicates changing the current configuration, and a value B indicates maintaining the current configuration.

[0095] In some embodiments, a value A for the bit field indicates a first configuration and a value B indicates a second configuration.

[0096] In some embodiments, a value A of the bit field indicates that state reconfiguration is supported, and a value B indicates that state reconfiguration is not supported.

[0097] In some embodiments, the value A of the bit field indicates activation of the SCell, and the value B indicates deactivation of the SCell. And A is equal to 0, B is equal to 1; or A is equal to 1, B is equal to 0.

[0098] In some embodiments, the wake-up indication bit field includes T bits, T> 1. In some examples, T is determined by (or associated with) the number of states configured for the network (N), for example, T=ceil(log2N), where ceil(x) means rounded up to an integer.

[0099] WUS with wake-up indication information carried by PUCCH

[0100] In one embodiment, the wake-up indication is carried by PUCCH.

[0101] In some embodiments, if only the wake-up indication bit is transmitted on the PUCCH, the wake-up indication bit is mapped to the UCI bit sequence, which is a0, a1, a2, a3, ..., a A-1 , where A is the number of coded bits for the wake-up indication. When more than one field is transmitted on the PUCCH, the UCI sequence generation is associated with the priority configuration, and the field with a higher priority will be mapped to the front of the UCI sequence. In some examples, each field transmitted on the PUCCH is configured with a priority index. For example, the wake-up indication is associated with priority index 0, while the HARQ-ACK bits associated with priority index 1 are transmitted on the PUCCH, and the UCI bit sequence is generated as a0, a1, a2, a3, ..., a A-1 , Where A is the bit length of the wake-up indication, and A (1) It is the bit length of HARK-ACK.

[0102] In some embodiments, UCI may be multiplexed with PUSCH according to at least one of a priority index or a default configuration.

[0103] In some embodiments, the wake-up indication bit field comprises one bit.

[0104] In some embodiments, a value A of the bit field indicates changing the current configuration, and a value B indicates maintaining the current configuration.

[0105] In some embodiments, a value A for the bit field indicates a first configuration and a value B indicates a second configuration.

[0106] In some embodiments, a value A of the bit field indicates that state reconfiguration is supported, and a value B indicates that state reconfiguration is not supported.

[0107] In some embodiments, the value A of the bit field indicates activation of the SCell, and the value B indicates deactivation of the SCell. And A is equal to 0, B is equal to 1; or A is equal to 1, B is equal to 0.

[0108] In some embodiments, the wake-up indication bit field includes T bits, T> 1. In some examples, T is determined by (or associated with) the number of states configured for the network (N), for example, T=ceil(log2N), where ceil(x) means rounded up to an integer.

[0109] WUS with wake-up indication information carried by PUSCH scheduled by DCI

[0110] In one embodiment, the WUS has wake-up indication information carried by the PUSCH scheduled by the DCI.

[0111] In some embodiments, the WUS is a feedback requested by the gNB. The WUS includes a bit field, wherein the value A of the bit field indicates support for changing the current configuration, and the value B indicates support for maintaining the current configuration. And A is equal to 0, B is equal to 1; or A is equal to 1, B is equal to 0.

[0112] WUS with wake-up indication information carried by higher layer signaling

[0113] In one embodiment, the wake-up indication is carried by higher layer signaling (eg, MAC CE or RRC signaling).

[0114] In some embodiments, the wake-up indication is carried by an SRS based signal.

[0115] Resource Conflicts

[0116] In one embodiment, when WUS and other UL transmissions (e.g., SRS, PUCCH, PUSCH, PRACH) overlap in the same time slot on the serving cell, the UE transmits the signal or channel according to at least one of the following: priority index, default configuration, wherein the priority index is configured by one or more higher layer parameters.

[0117] For example, by default, when a WUS opportunity collides with a PRACH resource, the UE does not transmit a WUS. In another example, if a PUSCH or PUCCH with a high priority overlaps in time with a WUS transmission on the serving cell, the UE does not transmit a WUS in one or more overlapping symbols.

[0118] In some embodiments, when WUS and other UL transmissions overlap in the same time slot on the serving cell, low priority signals or channels are not transmitted.

[0119] In some embodiments, when WUS and other UL transmissions overlap in the same time slot on the serving cell, a signal or channel with a low priority is transmitted after the signal or channel with a high priority.

[0120] In some embodiments, if PUSCH and WUS are transmitted in the same time slot on the serving cell, the UE may be configured to transmit WUS after transmission of PUSCH and corresponding DM-RS when PUSCH is configured to have high priority.

[0121] In some embodiments, if a PUCCH or PUSCH with a high priority overlaps in time with a WUS transmission on a serving cell, the UE does not transmit a WUS in one or more overlapping symbols.

[0122] Resource Configuration

[0123] In one embodiment, resources for WUS opportunities are configured by at least one of: SIB, RRC, core network, NAS (Non Access Stratum).

[0124] In some embodiments, the resources used for WUS opportunities are the same in one or more cells, or one or more tracking areas, or one or more RAN notification areas.

[0125] In some other embodiments, resources for WUS opportunities may be used for the cell to be activated and the specific cell. The specific cell is at least one of the following cells configured by RRC, core network or NAS: PCell, PSCell, a cell belonging to the same TAG (timing advance group) as the cell to be activated, and a cell belonging to the same frequency range as the cell to be activated.

[0126] Figure 3 and Figure 4 A flow chart of a wireless communication method according to an embodiment of the present disclosure is shown.

[0127] According to an embodiment of the present disclosure, a wireless communication method is provided. In one embodiment, the wireless communication method can be performed by using a wireless communication terminal (e.g., UE). In one embodiment, the wireless communication terminal can be implemented by using the above-mentioned wireless communication terminal 70, but is not limited thereto.

[0128] like Figure 3 As shown, in one embodiment, the wireless communication method includes: at one or more wake-up opportunities, the wireless communication terminal sends a wake-up request to the wireless communication node, and the wake-up request includes wake-up information, 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.

[0129] The details in this regard can be determined by referring to the above paragraphs and will not be repeated here.

[0130] According to an embodiment of the present disclosure, another wireless communication method is provided. In one embodiment, the wireless communication method can be performed by using a wireless communication node (e.g., a base station or a gNB). In an embodiment, the wireless communication terminal can be implemented by using the above-mentioned wireless communication node 80, but is not limited thereto.

[0131] like Figure 4 As shown, in one embodiment, the wireless communication method includes: at one or more wake-up occasions, the wireless communication node receives a wake-up request from the wireless communication terminal, and the wake-up request includes wake-up information, 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.

[0132] The details in this regard can be determined by referring to the above paragraphs and will not be repeated here.

[0133] Although various embodiments of the present disclosure have been described above, it should be understood that these embodiments are intended to be exemplary only and not limiting. Similarly, various figures may depict exemplary architectures or configurations, which are provided to enable persons of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, such persons should understand that the present disclosure is not limited to the example architectures or configurations shown, but may be implemented using various alternative architectures and configurations. In addition, as persons of ordinary skill in the art should understand, one or more features of one embodiment may be combined with one or more features of another embodiment described herein. Therefore, the breadth and scope of the present disclosure should not be limited by any of the above-described exemplary embodiments.

[0134] It should also be understood that any reference to an element using names such as "first," "second," etc., herein generally does not limit the number or order of these elements. Instead, these names may be used herein as a convenient means of distinguishing two or more elements or instances of an element. Thus, reference to a first and a second element does not mean that only two elements can be used, nor does it mean that the first element must precede the second element in some way.

[0135] In addition, it should be understood by those skilled in the art that information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, and symbols that may be referenced in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0136] Those skilled in the art should also understand that any of the various illustrative logical blocks, units, processors, devices, circuits, methods, and functions described in conjunction with the aspects disclosed herein may be implemented by electronic hardware (e.g., digital implementations, analog implementations, or a combination of both), firmware, various forms of programs or design codes containing instructions (for convenience, may be referred to herein as "software" or "software units"), or any combination of these technologies.

[0137] In order to clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits and steps have been generally described above according to their functions. Whether such functions are implemented as hardware, firmware, or software, or as a combination of these technologies, depends on the specific application and the design constraints imposed on the entire system. Skilled technicians can implement the described functions in various ways for each specific application, but the decision of such implementation will not lead to departure from the scope of this disclosure. According to various embodiments, processors, devices, components, circuits, structures, machines, units, etc. can be configured to perform one or more functions described herein. The terms "configured to" or "configured for" used herein with respect to a specified operation or function refer to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform a specified operation or function.

[0138] In addition, it should be understood by those skilled in the art that the various exemplary logic blocks, units, devices, components and circuits described herein may 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 logic blocks, units and circuits may also include antennas and / or transceivers to communicate with various components within a network or device. The general-purpose processor may be a microprocessor, but alternatively, the processor may be any conventional processor, controller or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other suitable configuration of the functions described herein. If implemented in software, the functions may be stored as one or more instructions or codes on a computer-readable medium. Therefore, the steps of the method or algorithm disclosed herein may be implemented as software stored on a computer-readable medium.

[0139] Computer-readable media include computer storage media and communication media, including any medium capable of transferring a computer program or code from one place to another. Storage media can be any available medium that a computer can access. As an 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 the desired program code in the form of instructions or data structures and can be accessed by a computer.

[0140] In this application, the term "unit" as used herein refers to software, firmware, hardware, and any combination of these elements for performing the relevant functions described herein. In addition, for the purpose of discussion, various units are described as discrete units; however, it is obvious to those of ordinary skill in the art that, according to embodiments of the present disclosure, two or more units can be combined to form a single unit that performs related functions.

[0141] In addition, memory or other memory and communication components may be used in embodiments of the present disclosure. It should be understood that, for the sake of clarity, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it is apparent that any suitable functional distribution between different functional units, processing logic elements or domains may be used without departing from the present disclosure. For example, the functions illustrated as being performed by a separate processing logic element or controller may be performed by the same processing logic element or controller. Therefore, reference to a specific functional unit is merely a reference to a suitable device for providing the function, rather than an indication of a strict logical or physical structure or organization.

[0142] Various modifications to the embodiments described in this disclosure will be 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. Therefore, the present disclosure is not intended to be limited to the embodiments shown herein, but is to be consistent with the broadest scope consistent with the novel features and principles disclosed herein, as described in the following claims.

Claims

1. A wireless communication method, comprising: At one or more wake-up occasions, a wireless communication terminal sends a wake-up request to a wireless communication node, wherein the wake-up request includes wake-up information, 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.

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

3. The wireless communication method according to claim 1 or 2, wherein: The cell to be activated includes at least one of the following: a predefined cell, a cell with a specific configuration, a cell where the wireless communication node detects wake-up information, a cell within the coverage of the activated cell, or a cell adjacent to the connected cell.

4. The wireless communication method according to claim 1 or 2, wherein: The wake-up request is sent through the first cell and is used to activate the first cell or the second cell in a specific mode.

5. The wireless communication method according to claim 1, wherein: The cell deactivation request indicates to deactivate a cell or switch the cell to a specific mode.

6. The wireless communication method according to any one of claims 1 to 5, wherein: The feedback information includes at least one of the following: whether network status reconfiguration is supported, radio resource management RRM measurement information, capability of the wireless communication terminal, or auxiliary information of the wireless communication terminal.

7. The wireless communication method according to any one of claims 1 to 6, wherein: Activating the cell includes at least one of: activating a secondary cell SCell, converting the cell in a specific mode to a normal mode, changing a specific configuration on the cell, or starting transmission of a synchronization signal / physical broadcast channel block SSB on the cell.

8. The wireless communication method according to any one of claims 1 to 7, wherein: The wake-up request is carried by a sequence-based signal, wherein generation of the wake-up request is related to at least one of the following: a state flag, 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 timing is associated with at least one of the following: a high-layer parameter, a paging cycle, an SSB transmission cycle, a duty cycle of a discovery burst, a predefined value, one or more system frame numbers, a state transition or indication information of the wireless communication node.

10. The wireless communication method according to claim 9, wherein: The one or more transmission opportunities of the wake-up request are associated with the number of SSB indexes, or are a certain number of consecutive opportunities, and the certain number is the number of SSBs actually transmitted.

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

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

13. The wireless communication method according to claim 12, wherein: The reference signal includes at least one of the following: CSI-RS resources in NZP-CSI-RS-ResourceSet, CSI-RS resources for tracking, tracking reference signal TRS resources, sounding reference signal SRS, resources for beam management beamManagement, or SSB associated with a physical cell ID PCI that is the same as or different from the serving cell's PCI.

14. The wireless communication method according to any one of claims 1 to 7, wherein: The wake-up information is carried by a sequence-based signal transmitted on a PRACH resource, or by one or more random access preambles, wherein the one or more random access preambles have at least one of the following: a specific PRACH preamble format, a specific radio network temporary identifier RNTI, or a PRACH resource.

15. The wireless communication method according to any one of claims 1 to 7, wherein: The wake-up information is carried by a physical uplink shared channel PUSCH, and the physical uplink shared channel PUSCH is scheduled by a random access response RAR uplink UL grant or a PUSCH for a type 2 random access procedure.

16. The wireless communication method according to claim 15, wherein: The bit field of the wake-up information is uplink control information UCI, and the UCI is carried on a PUSCH scheduled by a RAR UL grant or a PUSCH used 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 activation of a cell or deactivation of a cell, or the bit field of the wake-up information includes more than one bit indicating a network status.

19. The wireless communication method according to any one of claims 1 to 7, wherein: The wake-up information is carried by a physical uplink control channel PUCCH, and in response to more than one field transmitted on the PUCCH, a UCI sequence is generated according to a priority configuration, and a field with a high priority is mapped to the front of the UCI sequence.

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

21. The wireless communication method according to any one of claims 1 to 20, wherein: In response to the wake-up request and UL transmission overlapping in the same time 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. The wireless communication method according to any one of claims 1 to 21, wherein: In response to the wake-up request and the UL transmission overlapping in the same time slot on the serving cell, one of the wake-up request and the UL transmission having a lower priority is not transmitted, or is transmitted after the other of the wake-up request and the UL transmission having a higher priority is transmitted.

23. A wireless communication method, comprising: At one or more wake-up occasions, a wireless communication node receives a wake-up request from a wireless communication terminal, where the wake-up request includes wake-up information, 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.

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

25. The wireless communication method according to claim 23 or 24, wherein: The cell to be activated includes at least one of the following: a predefined cell, a cell with a specific configuration, a cell where the wireless communication node detects wake-up information, a cell within the coverage of the activated cell, or a cell adjacent to the connected cell.

26. The wireless communication method according to claim 23 or 24, wherein: The wake-up request is sent through the first cell and is used to activate the first cell or the second cell in a specific mode.

27. The wireless communication method according to claim 23, wherein: The cell deactivation request indicates to deactivate a cell or switch the cell to a specific mode.

28. The wireless communication method according to any one of claims 23 to 27, wherein: The feedback information includes at least one of the following: whether network status reconfiguration is supported, radio resource management RRM measurement information, capability of the wireless communication terminal, or auxiliary 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, converting the cell in a specific mode to a normal mode, changing a specific configuration on the cell, or starting transmission of a synchronization signal / physical broadcast channel block SSB on the cell.

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, wherein generation of the wake-up request is related to at least one of the following: a state flag, 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 timing is associated with at least one of the following: a high-layer parameter, a paging cycle, an SSB transmission cycle, a duty cycle of a discovery burst, a predefined value, one or more system frame numbers, a state transition or indication information of the wireless communication node.

32. The wireless communication method according to claim 31, wherein: The one or more transmission opportunities of the wake-up request are associated with the number of SSB indexes, or are a certain number of consecutive opportunities, and the certain number is the number of SSBs actually transmitted.

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

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

35. The wireless communication method according to claim 34, wherein: The reference signal includes at least one of the following: CSI-RS resources in NZP-CSI-RS-ResourceSet, CSI-RS resources for tracking, tracking reference signal TRS resources, sounding reference signal SRS, resources for beam management beamManagement, or SSB associated with a physical cell ID PCI that is the same as or different from the serving cell's PCI.

36. The wireless communication method according to any one of claims 23 to 29, wherein: The wake-up information is carried by a sequence-based signal transmitted on a PRACH resource, or by one or more random access preambles, wherein the one or more random access preambles have at least one of the following: a specific PRACH preamble format, a specific radio network temporary identifier RNTI, or a PRACH resource.

37. The wireless communication method according to any one of claims 23 to 29, wherein: The wake-up information is carried by a physical uplink shared channel PUSCH, and the physical uplink shared channel PUSCH is scheduled by a random access response RAR uplink UL grant or a PUSCH for a type 2 random access procedure.

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

39. The wireless communication method according to claim 37 or 38, wherein: The wake-up information is multiplexed with one or more uplink shared channel UL-SCH bits.

40. The 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 activation of a cell or deactivation of a cell, or the bit field of the wake-up information includes more than one bit indicating a network status.

41. The wireless communication method according to any one of claims 23 to 29, wherein: The wake-up information is carried by a physical uplink control channel PUCCH, and in response to more than one field transmitted on the PUCCH, a UCI sequence is generated according to a priority configuration, and a field with a high priority is mapped to the front of the UCI sequence.

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

43. The wireless communication method according to any one of claims 23 to 42, wherein: In response to the wake-up request and UL transmission overlapping in the same time 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. The wireless communication method according to any one of claims 23 to 43, wherein: In response to the wake-up request and the UL transmission overlapping in the same time slot on the serving cell, one of the wake-up request and the UL transmission having a lower priority is not transmitted, or is transmitted after the other of the wake-up request and the UL transmission having a higher priority is transmitted.

45. A wireless communication terminal, comprising: Transceiver; and A processor, wherein the processor is configured to: at one or more wake-up occasions, send a wake-up request to a wireless communication node through the transceiver, wherein the wake-up request includes wake-up information, 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.

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

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

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

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

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