Signal processing method

Abstract

A wireless communication method is disclosed. The method comprises sending, by the wireless communication terminal, a wake-up request comprising wake-up information to the wireless communication node in one or more wake-up opportunities to instruct the wireless communication node to perform one or more operations.

Description

Technical Field

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

[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] However, without UE feedback, these network energy-saving techniques may have problems. If the energy-saving state is too short, the energy-saving gain is limited. If the energy-saving state lasts for a long time, the user experience may be greatly affected.

[0005] Therefore, switching between energy-saving and non-energy-saving settings is a technique that needs to be considered.

[0006] For NR, there are some necessary common signal / channel transmission or reception, such as SSB (Synchronization Signal Block), SIB1 (System Information Block), Paging and PRACH (Physical Random Access Channel).

[0007] Therefore, the network cannot easily enter a low-power state (e.g., sleep mode). In addition, even if the network device can enter a sleep state, if a semi-static configuration is used, the device can only be awakened after a period of sleep. If there is a service request in the sleep state, it cannot be met, which will cause a lot of delay and affect the user experience. Summary of the invention

[0008] Embodiments of the present disclosure propose several methods and systems, as exemplified in the following paragraphs.

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

[0010] Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes: receiving a wake-up request including wake-up information from a wireless communication terminal by a wireless communication node in one or more wake-up occasions; and performing one or more operations by the wireless communication node according to the wake-up request.

[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 including wake-up information to a wireless communication node via the transceiver in one or more wake-up occasions to instruct the wireless communication node to perform one or more operations.

[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 including wake-up information from a wireless communication terminal by the transceiver in one or more wake-up occasions; and perform one or more operations according to the wake-up request.

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

[0014] Preferably, the wake-up information comprises at least one of the following information: an indication indicating transmission of one or more common signals or channels, an indication indicating reception of one or more common signals or channels, or feedback sent to the wireless communication node.

[0015] Preferably, the common signal or channel includes at least one of a synchronization signal / physical broadcast channel block SSB, a system information block SIB, paging, a sounding reference signal SRS or a physical random access channel PRACH.

[0016] Preferably, the one or more operations include at least one of the following operations: sending SSB, sending SIB, receiving PRACH, receiving SRS, sending paging, sending on-demand reference signal RS or sending feedback to the wireless communication node.

[0017] Preferably, sending SSB includes at least one of the following operations: periodically sending SSB a predetermined number of times starting from the next SSB burst opportunity, repeatedly sending SSB a predetermined number of times in one or more SSB cycles, periodically sending SSB within a duration, or sending SSB with a new SSB cycle starting from the next SSB burst opportunity.

[0018] Preferably, sending the SIB includes at least one of the following operations: periodically sending the SIB a predetermined number of times starting from the next SIB opportunity, periodically sending the SIB within the duration, or sending the SIB with a new SIB period starting from the next SIB burst opportunity.

[0019] Preferably, at least one of the predetermined number of times, the duration, the new SSB period or the new SIB period is associated with at least one of: a fixed value, configured by a high-level parameter, a multiple of the SSB period or a multiple of the SIB period.

[0020] Preferably, during the validity period of the wake-up request, the wireless communication node does not detect the wake-up request, or

[0021] When a new wakeup request is detected within the valid time of the wakeup request, one or more operations are restarted, or

[0022] When a new wake-up request is detected within the valid time of the wake-up request, the wake-up information in the new wake-up request is ignored.

[0023] Preferably, the wake-up timing is associated with at least one of the following: a period of one of the wake-up timings, indication information sent from a wireless communication node to a wireless communication terminal, a random access channel RACH timing, a paging timing, a paging frame PF or a paging early indication PEI.

[0024] Preferably, the period of the wake-up occasion is associated with at least one of a higher layer parameter, a paging cycle, an SSB transmission cycle, a discovery burst duty cycle, or a predefined value.

[0025] Preferably, the wake-up request is sent based on at least one of a measurement result, a random access requirement, a data transmission requirement, a state of a wireless communication node, one or more enabled wake-up opportunities, or an event that the wireless communication terminal fails to detect a common signal within a duration.

[0026] Preferably, the wireless communication terminal performs at least one of the following operations before sending a wake-up request: receiving SSB at a predefined period, receiving SSB N times before one or more wake-up opportunities, receiving tracking reference signals TRS before one or more wake-up opportunities, receiving discovery bursts before one or more wake-up opportunities, receiving one or more on-demand RSs before one or more wake-up opportunities, or receiving light SSB before one or more wake-up opportunities.

[0027] Preferably, 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 a state identifier, a common signal transmission cycle index, a root sequence index or an initialization seed.

[0028] 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 equal to the number of SSBs actually transmitted.

[0029] Preferably, the SSB index and one or more transmission opportunities of the wake-up request are mapped in an associated period, and the length of the associated period is a multiple of the period of one of the wake-up request transmission opportunities or a multiple of the SSB period.

[0030] Preferably, in response to the preconfigured wake-up opportunity not being associated with the SSB index, or the SSB corresponding to the preconfigured wake-up opportunity not existing, the preconfigured wake-up opportunity is not used to send the wake-up request, or

[0031] The wake-up request is sent with reference to at least one of the most recent PRACH opportunity, historical transmission information, or a default configuration.

[0032] Preferably, in response to transmission of the wake-up request and the other uplink signal overlapping in the same time slot on the serving cell, one of the wake-up request or the other uplink signal is sent according to a priority index or a default configuration.

[0033] Preferably, the wake-up information is carried by one or more random access preambles, and the preamble has at least one of the following items: a specific PRACH preamble format, a specific radio network temporary identifier RNTI or a PRACH resource.

[0034] Preferably, the wireless communication node receives the wake-up request in a power saving state, wherein the power saving state indicates at least one of the following operations: no downlink common signal is sent, a common signal or channel is sent with a large cycle, or only an on-demand signal is sent.

[0035] Preferably, the wireless communication node performs at least one of the following operations before receiving a wake-up request: sending SSB at a predefined period, sending SSB N times before one or more wake-up opportunities, sending a tracking reference signal TRS before one or more wake-up opportunities, sending a discovery burst before one or more wake-up opportunities, sending one or more on-demand RSs before one or more wake-up opportunities, or sending a light SSB before one or more wake-up opportunities.

[0036] The present disclosure also relates to a computer program product, which includes a computer-readable program medium code stored thereon, and when the code is executed by a processor, the processor implements the wireless communication method according to any one of the aforementioned methods.

[0037] The exemplary embodiments disclosed herein are intended to provide features that will become apparent when referenced 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 it will be apparent to those of ordinary skill in the art who read this disclosure that various modifications may be made to the disclosed embodiments while remaining within the scope of this disclosure.

[0038] 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 a sample order, and unless otherwise expressly stated, the present disclosure is not limited to the specific order or hierarchy presented.

[0039] The above-described aspects and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 A schematic diagram of a wireless terminal according to an embodiment of the present disclosure is shown.

[0041] Figure 2 A schematic diagram of a wireless network node according to an embodiment of the present disclosure is shown.

[0042] Figure 3 and Figure 4 A flow chart of a wireless communication method according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0043] 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, 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 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 data packets) based on the processing results of the processor 100. In one embodiment, the communication unit 120 communicates with the communication unit 120 via Figure 1 At least one antenna 122 is shown for transmitting and receiving signals.

[0044] 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.

[0045] 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 .

[0046] 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.

[0047] Figure 2 A 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 here. 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 plane 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 data 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.

[0048] In one embodiment, storage unit 210 and program code 212 may be omitted. Processor 200 may include a storage unit with stored program code.

[0049] 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 .

[0050] The communication unit 220 may be a transceiver. As an alternative or in addition, the communication unit 220 may combine a sending unit and a receiving unit configured to send and receive signals to and from a wireless terminal (e.g., a user equipment or another wireless network node), respectively.

[0051] In one embodiment, the network device detects a wake-up request (e.g., a wake-up signal or channel (hereinafter referred to as WUS)) only when the network device is in a power-saving state. The power-saving state refers to one or more of the following: no DL common signal or channel is sent, a common signal or channel is sent with a large cycle, and only an on-demand signal is sent. The common signal or channel includes at least one of SSB, SIB, paging, SRS, or PRACH.

[0052] The wake-up information includes at least one of the following: an indication of one or more of common signal or channel transmission (e.g., transmission of a common signal or channel), an indication of one or more of common signal or channel reception (e.g., reception of a common signal or channel), or feedback sent to a wireless communication node.

[0053] In this embodiment, the operation of the network device corresponding to the wake-up request includes at least one of sending an SSB, sending an SIB, receiving a PRACH, receiving an SRS, sending a paging, sending one or more on-demand reference signals, or sending feedback to the wireless communication node. The details will be described below.

[0054] 1- Send SSB

[0055] In some embodiments, when the network device detects a wake-up signal or channel, the network device starts sending the SSB from the next SSB burst.

[0056] In some embodiments, the network device periodically sends SSB N times starting from the next SSB burst opportunity, where N is determined by at least one of the following: a fixed value (eg, N=1 or N=2), or configured by one or more high-level parameters.

[0057] In some embodiments, the network device repeatedly sends the SSB N times within one or more SSB periods starting from the next SSB burst, where N is determined by at least one of a fixed value (e.g., N=1 or N=2), one or more higher layer parameter configurations, or an SSB period, or a duration between two SSB opportunities.

[0058] In some embodiments, the network device sends the SSB periodically over a duration.

[0059] In some embodiments, the duration may be associated with (or determined by) at least one of the following: a fixed value (e.g., 40 ms), configured by one or more higher layer parameters, X times the SSB period (X ≥ 1), or a RACH process. For example, the network device sends the SSB during the PRACH process, and when the RACH process ends, the network device stops sending the SSB.

[0060] In some embodiments, the duration may take effect immediately after the signal / channel is detected. Alternatively, the duration may take effect after an offset. In another alternative, the duration may take effect from the next SSB burst opportunity.

[0061] In some embodiments, the network device sends SSB with a new period starting from the next SSB burst. The new SSB period is determined by at least one of: a predefined value, configured by one or more high-level parameters, and indicated by a wake-up signal / channel.

[0062] In some embodiments, the network device sends SSB M times with a new period, where M≥1.

[0063] In some embodiments, the network device sends the SSB with a new period within the duration.

[0064] In some embodiments, the network device sends the SSB with a new period until the transmission timer expires.

[0065] In some embodiments, the network device sends SSB with a new period until the network device receives a new indication.

[0066] In some embodiments, the new SSB period is broadcast by the SIB.

[0067] In some embodiments, the new SSB period is indicated to the UE by feedback.

[0068] 2 – Send SIB

[0069] In some embodiments, the network device periodically sends the SIB N times starting from the next SIB opportunity, where N is determined by at least one of fixed values ​​(eg, N=1 or N=2) or configured by one or more higher layer parameters.

[0070] In some embodiments, the network device periodically sends the SIB within a duration. The duration is determined by at least one of a fixed value (e.g., 40ms), configured by one or more high-level parameters or M times the SIB period. In some embodiments, the duration may take effect immediately after a signal / channel is detected, after an offset, or from the next SIB opportunity.

[0071] In some embodiments, the network device sends SIBs with a new period starting from the next SIB opportunity. The new SIB period is determined by at least one of predefined values, configured by one or more higher layer parameters, and indicated by a signal / channel.

[0072] In some embodiments, the network device sends the SIB with a new period: M times, where M≥1; or sends the SIB within a duration; or until a transmission timer expires or until the network device receives a new indication.

[0073] In some embodiments, the SIB includes at least one of the following: the state of the network device (for example, whether the network device is in a power-saving state), the configuration regarding the transmission of common signals (for example, the adopted cycle of the common signal), the configuration regarding the WUS (for example, the configuration related to the WUS timing), and whether the WUS transmission is enabled.

[0074] 3 – Receive PRACH

[0075] In some embodiments, the network device may not detect the RACH until it receives the wake-up signal / channel.

[0076] In some embodiments, the network device may detect RACH from the RACH opportunity after receiving the wake-up signal / channel. In some other embodiments, after the network device receives the wake-up signal / channel, the network device may detect RACH from the RACH opportunity after N SSB burst opportunities.

[0077] 4 – Receive SRS

[0078] In some embodiments, the network device detects the SRS after receiving the WUS.

[0079] 5 – Send a page

[0080] In some embodiments, the network device sends a page after receiving a WUS.

[0081] 6 – Send feedback to UE

[0082] In some embodiments, the network device sends feedback to the UE after receiving the WUS. The feedback includes at least one of ACK / NACK (e.g., whether the WUS is successfully detected), an index of the common signal transmission period, or common signal transmission period change information (e.g., the feedback includes information on whether the common signal transmission period is changed).

[0083] 7 – Send one or more on-demand reference signals (RS)

[0084] In some embodiments, the network device sends one or more on-demand RSs after receiving the WUS. The on-demand RSs may be TRSs, CSI-RSs, or other reference signals.

[0085] In one embodiment, during the effective time of the WUS, the network device may not be able to detect the WUS at the WUS opportunity.

[0086] In some other embodiments, the network device detects the WUS at the WUS opportunity. When a new WUS with the same information is detected within the effective time of the WUS, the operation of the network device is restarted.

[0087] In one embodiment, when a new WUS with the same information is detected within the validity period of the WUS, the network device may ignore the newly received wake-up information.

[0088] WUS Timing

[0089] In one embodiment, the WUS occasion is associated with at least one of: a WUS occasion period; an indication message; a RACH occasion; a paging occasion; a paging frame PF; or a PEI occasion.

[0090] In some embodiments, when the WUS opportunity is associated with a WUS opportunity period, the period of the WUS opportunity is associated with at least one of the one or more higher-layer parameters (e.g., the period of the WUS opportunity is a predefined value configured by the one or more higher-layer parameters). In one embodiment, there is a WUS opportunity period candidate list (and one of them can be selected), a paging cycle (e.g., 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 discovery burst duty cycle, or a predefined value (e.g., the transmission opportunity only exists on a specified SFN, so the number of transmission opportunities allowed on 1024 radio frames determines the transmission opportunity period).

[0091] In some embodiments, the WUS 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.

[0092] In some embodiments, the transmission opportunity is associated with a duty cycle and SSB.

[0093] In some embodiments, when the WUS timing is associated with indication information, the transmission timing is determined by at least one of the following: gNB state transition, indication information (e.g., indication information carried by SIB).

[0094] In some embodiments, when the WUS opportunity is associated with the RACH opportunity, the WUS opportunity is also associated with the RACH opportunity. The association relationship between the WUS opportunity and the RACH opportunity includes at least one of the following: the location of the WUS opportunity is the same as the RACH opportunity, the WUS opportunity is a subset of the RACH opportunity, or the WUS opportunity is close to the RACH opportunity.

[0095] In some embodiments, when the WUS timing is associated with the paging timing, the WUS timing corresponds to the paging timing. For example, there is an offset between the WUS timing and the paging timing. The UE can send the WUS on the WUS timing corresponding to the paging timing of the UE.

[0096] In some embodiments, when a WUS opportunity is associated with a paging frame (PF), there is an offset between the WUS opportunity and the start of the PF. In some embodiments, each PF corresponds to a WUS opportunity. In some embodiments, only some PFs correspond to WUS opportunities. In some embodiments, the UE can send a WUS on a WUS opportunity corresponding to the associated PF.

[0097] In some embodiments, when the WUS opportunity is associated with a Paging Early Indication (PEI) opportunity, there is an offset between the WUS opportunity and the PEI opportunity. In some embodiments, the UE may send a WUS at a WUS opportunity corresponding to the PEI opportunity of the UE.

[0098] WUS transmission

[0099] In one embodiment, whether the UE sends a wake-up signal or channel is associated with at least one of the following situations: measurement results (for example, when RSRP (reference signal received power) is lower than a threshold, or the UE does not detect any of SSB and CSI-RS within a duration, the UE sends a WUS), random access requirements, data transmission requirements, the state of the network device (for example, the UE sends a WUS when the network device is in a power saving state, where the power saving state refers to not sending a DL common signal, sending a common signal with a large cycle, and only sending one or more of on-demand signals), the WUS opportunity is enabled, and the UE fails to detect a common signal within a duration.

[0100] In some embodiments, the state of the network device, ie, whether the network device is in an energy-saving state, is broadcasted by the SIB.

[0101] In some embodiments, whether the WUS opportunity is enabled is broadcasted by the SIB. When the WUS opportunity is enabled, the UE sends a WUS when the RSRP is lower than a threshold.

[0102] In some embodiments, the UE detects the common signal at a default or configured period. When no common signal is detected within the duration and the UE has a data transmission requirement, the UE sends a WUS.

[0103] In some embodiments, the operation of the UE before sending the wake-up signal / channel includes at least one of the following operations: receiving SSB with a predefined period, receiving SSB N times before the WUS opportunity, receiving TRS before the WUS opportunity, receiving discovery burst before the WUS opportunity, receiving on-demand RS before the WUS opportunity, or receiving light SSB (e.g., including PSS and SSS).

[0104] In some embodiments, the operation of the network device before detecting the wake-up signal / channel includes at least one of the following operations: sending SSB at a predefined period, sending SSB N times before the WUS opportunity, sending TRS before the WUS opportunity, sending discovery burst before the WUS opportunity, sending on-demand RS before the WUS opportunity, or sending light SSB (e.g., including PSS and SSS).

[0105] WUS (wake-up signal / channel)

[0106] In one embodiment, the wake-up indication information is carried by a sequence-based signal or a RA-based channel.

[0107] 1) Sequence-based signals

[0108] In some embodiments, the wake-up signal carrying the wake-up indication information is a sequence-based signal.

[0109] 1.1) Generation of wake-up signal

[0110] In some embodiments, the format of the wake-up signal is based on a ZC (Zadoff Chu) sequence or a PN (pseudo-noise) sequence.

[0111] 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), a common signal transmission cycle index, a root sequence index, or an initialization seed. For example, a sequence-based signal is related to a common signal transmission cycle index, and different common signal transmission cycle indexes correspond to different wake-up indication sequences, and when the sequence is detected, the indication information is sent. In another example, different wake-up indication information corresponds to different root sequence indexes, and the wake-up indication information can be detected according to different root sequence indexes.

[0112] In some embodiments, the WUS is a sequence. In some embodiments, the WUS is a set of sequences. For example, each WUS sequence corresponds to an index of a common signal transmission cycle or a network device state.

[0113] 1.2) Use SSB for mapping

[0114] 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 arranged in ascending 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 block index=1. For frequency-reused WUS transmission timings, the wake-up signal resources can be sorted in ascending order of frequency resource indices, for time-reused WUS transmission timings, the wake-up signal resources can be sorted in ascending order of time resource indices, or for WUS transmission slots, the wake-up signal resources can be sorted in ascending order of indexes.

[0115] In some embodiments, the transmission timing of the wake-up signal is S consecutive timings, where S is the number of SSBs actually transmitted. Each WUS transmission timing corresponds to an SS / PBCH block index. In some embodiments, only N WUS timings out of the S WUS timings are used for WUS transmission, where the N timings correspond to the N SS / PBCH block indices with the best measurement results.

[0116] In some embodiments, the SS / PBCH block index is mapped to the WUS transmission opportunity in the association period. In some embodiments, the association period starts at frame 0. In some embodiments, the association period is a certain multiple of the WUS transmission opportunity period. In some embodiments, the association period is a certain multiple of the SSB period.

[0117] In some embodiments, when WUS opportunities are not associated with SS / PBCH block indexes or SSBs associated with WUS opportunities do not exist, these opportunities are not used for WUS transmissions. In some embodiments, when WUS opportunities are not associated with SS / PBCH block indexes or SSBs associated with WUS opportunities do not exist, these opportunities are used for WUS transmissions made with reference to the most recent PRACH opportunity. In some embodiments, when WUS opportunities are not associated with SS / PBCH block indexes or SSBs associated with WUS opportunities do not exist, these opportunities are used for WUS transmissions made with reference to historical transmission information. In some embodiments, when WUS opportunities are not associated with SS / PBCH block indexes or SSBs associated with WUS opportunities do not exist, these opportunities are used for WUS transmissions made with reference to default configurations.

[0118] 1.3) Specific signal / channel

[0119] In some embodiments, the transmission timing of the wake-up signal is associated with a specific signal / channel. The specific signal / channel includes at least one of the following: a discovery burst; a tracking reference signal; and a light SSB.

[0120] 1.4) Resource Conflict

[0121] In some embodiments, when WUS and other UL transmissions (eg, PRACH) overlap in the same timeslot on a serving cell, the UE transmits a signal or channel according to a priority index configured by one or more higher layer parameters.

[0122] In some embodiments, when WUS and other UL transmissions (e.g., PRACH) are transmitted in the same time slot on the serving cell, the UE transmits the signal or channel by default. For example, when the WUS timing conflicts with the PRACH resource, the UE does not transmit the WUS. In another example, when one or more symbols overlap, the UE does not transmit the PRACH.

[0123] In some other embodiments, when the WUS overlaps with a DL signal or channel (such as SSB, SIB or TRS) in the same time slot, the UE does not transmit the WUS.

[0124] 2) RA-based channels

[0125] In one embodiment, the wake-up indication information is carried by a physical random access channel (PRACH).

[0126] In some embodiments, the wake-up indication information is carried by one or more random access preambles, and the preambles have at least one of the following: a specific PRACH preamble format; a specific RNTI; or a PRACH resource.

[0127] In some embodiments, the wake-up indication information is carried by a sequence-based signal transmitted on the PRACH resource.

[0128] Figure 3 and Figure 4 A flow chart of a wireless communication method according to an embodiment of the present disclosure is shown.

[0129] 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.

[0130] like Figure 3As shown, in one embodiment, the wireless communication method includes: in one or more wake-up opportunities, the wireless communication terminal sends a wake-up request including wake-up information to the wireless communication node to instruct the wireless communication node to perform one or more operations.

[0131] The details in this regard can be determined by referring to the above paragraphs and will not be repeated here.

[0132] 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 one embodiment, the wireless communication terminal can be implemented by using the above-mentioned wireless communication node 80, but is not limited thereto.

[0133] like Figure 4 As shown, in one embodiment, the wireless communication method includes: in one or more wake-up occasions, the wireless communication node receives a wake-up request including wake-up information from a wireless communication terminal; and the wireless communication node performs one or more operations according to the wake-up request.

[0134] The details in this regard can be determined by referring to the above paragraphs and will not be repeated here.

[0135] Although various embodiments of the present disclosure have been described above, it should be understood that they are presented by way of example only, rather than by way of limitation. Similarly, various figures may depict exemplary architectures or configurations, which are provided to enable those of ordinary skill in the art to understand the exemplary features and functions of the present disclosure. However, it should be understood by these persons that the present disclosure is not limited to the exemplary architectures or configurations shown, but may be implemented using various alternative architectures and configurations. In addition, as will be appreciated by those of ordinary skill in the art, one or more features of an 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.

[0136] It should also be understood that any reference to an element using names such as "first," "second," etc., herein does not generally limit the number or order of these elements. Rather, these names may be used herein as a convenient method of distinguishing between 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, or that the first element must precede the second element in some manner.

[0137] In addition, it should be understood by those skilled in the art that any of a variety of different technologies and techniques may be used to represent information and signals. For example, data, instructions, commands, information, signals, bits, and symbols, etc., that may be cited in the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0138] The skilled person 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, they may be referred to herein as "software" or "software units"), or any combination of these technologies.

[0139] 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 with respect to their functions. Whether this function is implemented as hardware, firmware, or implemented as software, or implemented 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 this implementation will not lead to deviation 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 term "configured to" or "configured for" 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 a specified operation or function.

[0140] In addition, the technician should understand that the various illustrative logic blocks, units, devices, components and circuits described herein can be implemented in or performed by an integrated circuit (IC), which can 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 within a 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 (e.g., a combination of a DSP and a microprocessor), multiple microprocessors, one or more microprocessors combined with a DSP core, or any other suitable configuration for performing the functions described herein. If implemented in software, these 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.

[0141] Computer-readable media include computer storage media and communication media, which include any media that enable a computer program or code to be transferred from one place to another. The storage medium can be any available medium that can be accessed by a computer. As an example and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other medium that can be used to store the required program code in the form of instructions or data structures and can be accessed by a computer.

[0142] 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, as is apparent to those of ordinary skill in the art, two or more units may be combined to form a single unit that performs the relevant functions according to the embodiments of the present disclosure.

[0143] In addition, in the embodiments of the present disclosure, memory or other memory and communication components may be used. It should be understood that, for the sake of clarity, the above description describes the embodiments of the present disclosure with reference to different functional units and processors. However, it is apparent that any appropriate 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 an appropriate device for providing the function, rather than indicating a strict logical or physical structure or organization.

[0144] 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 accorded 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: In one or more wake-up occasions, the wireless communication terminal sends a wake-up request including wake-up information to the wireless communication node to instruct the wireless communication node to perform one or more operations.

2. The wireless communication method according to claim 1, wherein: The wake-up information includes at least one of the following information: an indication indicating transmission of one or more common signals or channels, an indication indicating reception of one or more common signals or channels, or feedback sent to the wireless communication node, wherein: The common signal or channel includes at least one of a synchronization signal / physical broadcast channel block SSB, a system information block SIB, a paging, a sounding reference signal SRS or a physical random access channel PRACH.

3. The wireless communication method according to claim 1 or 2, wherein: The one or more operations include at least one of the following operations: sending SSB, sending SIB, receiving PRACH, receiving SRS, sending paging, sending on-demand reference signal RS, or sending feedback to the wireless communication node.

4. The wireless communication method according to claim 3, wherein: Sending the SSB includes at least one of the following operations: periodically sending the SSB a predetermined number of times starting from the next SSB burst opportunity, repeatedly sending the SSB a predetermined number of times in one or more SSB cycles, periodically sending the SSB within a duration, or sending the SSB with a new SSB cycle starting from the next SSB burst opportunity.

5. The wireless communication method according to any one of claims 2 to 4, wherein: Sending the SIB includes at least one of the following operations: periodically sending the SIB a predetermined number of times starting from a next SIB opportunity, periodically sending the SIB within a duration, or sending the SIB with a new SIB period starting from a next SIB burst opportunity.

6. The wireless communication method according to any one of claims 4 to 5, wherein: At least one of the predetermined number of times, the duration, the new SSB period or the new SIB period is associated with at least one of the following: a fixed value configured by a high-level parameter, a multiple of the SSB period or a multiple of the SIB period.

7. The wireless communication method according to any one of claims 1 to 6, wherein: The wireless communication node does not detect the wake-up request within the validity period of the wake-up request, or When a new wake-up request is detected within the validity time of the wake-up request, the one or more operations are restarted, or When a new wake-up request is detected within the effective time of the wake-up request, the wake-up information in the new wake-up request is ignored.

8. The wireless communication method according to any one of claims 1 to 7, wherein: The wake-up timing is associated with at least one of the following: a period of one of the wake-up timings, indication information sent from the wireless communication node to the wireless communication terminal, a random access channel RACH timing, a paging timing, a paging frame PF or a paging early indication PEI.

9. The wireless communication method according to claim 8, wherein: The period of the wake-up occasion is associated with at least one of a high-layer parameter, a paging cycle, an SSB transmission cycle, a discovery burst duty cycle, or a predefined value.

10. The wireless communication method according to any one of claims 1 to 9, wherein: The wake-up request is sent based on at least one of a measurement result, a random access requirement, a data transmission requirement, a state of the wireless communication node, one or more enabled wake-up opportunities, or an event that the wireless communication terminal fails to detect a common signal within a duration.

11. The wireless communication method according to any one of claims 1 to 10, wherein: The wireless communication terminal performs at least one of the following operations before sending the wake-up request: receiving SSB at a predefined period, receiving SSB N times before the one or more wake-up opportunities, receiving tracking reference signal TRS before the one or more wake-up opportunities, receiving discovery bursts before the one or more wake-up opportunities, receiving one or more on-demand RSs before the one or more wake-up opportunities, or receiving light SSB before the one or more wake-up opportunities.

12. The wireless communication method according to any one of claims 1 to 11, 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 a state identifier, a common signal transmission cycle index, a root sequence index, or an initialization seed.

13. The wireless communication method according to claim 12, 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 equal to the number of SSBs actually transmitted.

14. The wireless communication method according to claim 13, wherein: The SSB index and one or more transmission opportunities of the wake-up request are mapped in an associated period, and a length of the associated period is a multiple of a period of one of the wake-up request transmission opportunities or a multiple of an SSB period.

15. The wireless communication method according to any one of claims 1 to 14, wherein: In response to the preconfigured wake-up opportunity not being associated with an SSB index or the SSB corresponding to the preconfigured wake-up opportunity not existing, the preconfigured wake-up opportunity is not used to send the wake-up request, or The wake-up request is transmitted with reference to at least one of the following: a most recent PRACH opportunity, historical transmission information, or a default configuration.

16. The wireless communication method according to any one of claims 12 to 15, wherein: In response to transmission of the wake-up request and another uplink signal overlapping in the same time slot on a serving cell, one of the wake-up request or the another uplink signal is transmitted according to a priority index or a default configuration.

17. The wireless communication method according to any one of claims 1 to 11, wherein: The wake-up information is carried by one or more random access preambles, and the random access preamble has at least one of the following items: a specific PRACH preamble format, a specific radio network temporary identifier RNTI, or a PRACH resource.

18. A wireless communication method, comprising: In one or more wake-up occasions, receiving, by the wireless communication node, a wake-up request including wake-up information from a wireless communication terminal; as well as One or more operations are performed by the wireless communication node according to the wake-up request.

19. The wireless communication method according to claim 18, wherein: The wireless communication node receives the wake-up request in a power saving state, wherein the power saving state indicates at least one of the following operations: no downlink common signal is transmitted, a common signal or channel is transmitted with a large cycle, or only an on-demand signal is transmitted.

20. The wireless communication method according to claim 18 or 19, wherein: The wake-up information includes at least one of the following information: an indication indicating the transmission of one or more common signals or channels, an indication indicating the reception of one or more common signals or channels, or feedback sent to the wireless communication node, wherein: The common signal or channel includes at least one of a synchronization signal / physical broadcast channel block SSB, a system information block SIB, a paging, a sounding reference signal SRS or a physical random access channel PRACH.

21. The wireless communication method according to any one of claims 18 to 20, wherein: The one or more operations include at least one of the following operations: sending SSB, sending SIB, receiving PRACH, receiving SRS, sending paging, sending on-demand reference signal RS, or sending feedback to the wireless communication node.

22. The wireless communication method according to claim 21, wherein: Sending the SSB includes at least one of the following operations: periodically sending the SSB a predetermined number of times starting from the next SSB burst opportunity, repeatedly sending the SSB a predetermined number of times in one or more SSB cycles, periodically sending the SSB within a duration, or sending the SSB with a new SSB cycle starting from the next SSB burst opportunity.

23. The wireless communication method according to any one of claims 19 to 22, wherein: Sending the SIB includes at least one of the following: periodically sending the SIB a predetermined number of times starting from a next SIB opportunity, periodically sending the SIB within a duration, or sending the SIB with a new SIB period starting from a next SIB burst opportunity.

24. The wireless communication method according to any one of claims 22 to 23, wherein: At least one of the predetermined number of times, the duration, the new SSB period or the new SIB period is associated with at least one of the following: a fixed value configured by a high-level parameter, a multiple of the SSB period or a multiple of the SIB period.

25. The wireless communication method according to any one of claims 18 to 24, wherein: The wireless communication node does not detect the wake-up request within the validity period of the wake-up request, or When a new wake-up request is detected within the validity time of the wake-up request, the one or more operations are restarted, or When a new wake-up request is detected within the effective time of the wake-up request, the wake-up information in the new wake-up request is ignored.

26. The wireless communication method according to any one of claims 18 to 25, wherein: The wake-up timing is associated with at least one of the following: a period of one of the wake-up timings, indication information sent from the wireless communication node to the wireless communication terminal, a random access channel RACH timing, a paging timing, a paging frame PF or a paging early indication PEI.

27. The wireless communication method according to claim 26, wherein: The period of the wake-up occasion is associated with at least one of a high-layer parameter, a paging cycle, an SSB transmission cycle, a discovery burst duty cycle, or a predefined value.

28. The wireless communication method according to any one of claims 18 to 27, wherein: The wake-up request is sent based on at least one of a measurement result, a random access requirement, a data transmission requirement, a state of the wireless communication node, the one or more enabled wake-up opportunities, or an event that the wireless communication terminal fails to detect a common signal within a duration.

29. The wireless communication method according to any one of claims 18 to 28, wherein: The wireless communication node performs at least one of the following operations before the wake-up opportunity: sending SSB at a predefined period, sending SSB N times before the one or more wake-up opportunities, sending a tracking reference signal TRS before the one or more wake-up opportunities, sending a discovery burst before the one or more wake-up opportunities, sending one or more on-demand RSs before the one or more wake-up opportunities, or sending a light SSB before the one or more wake-up opportunities.

30. The wireless communication method according to any one of claims 18 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 a state identifier, a common signal transmission cycle index, a root sequence index, or an initialization seed.

31. The wireless communication method according to any one of claims 18 to 30, 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 equal to the number of SSBs actually transmitted.

32. The wireless communication method according to claim 31, wherein: The SSB index and one or more transmission opportunities of the wake-up request are mapped in an associated period, and a length of the associated period is a multiple of a period of one of the wake-up request transmission opportunities or a multiple of an SSB period.

33. The wireless communication method according to any one of claims 18 to 32, wherein: In response to the preconfigured wake-up opportunity not being associated with an SSB index or the SSB corresponding to the preconfigured wake-up opportunity not existing, the preconfigured wake-up opportunity is not used to send the wake-up request, or The wake-up request is sent with reference to at least one of the following: a most recent PRACH opportunity, historical transmission information, or a default configuration.

34. The wireless communication method according to any one of claims 30 to 33, wherein: In response to transmission of the wake-up request and another uplink signal overlapping in the same time slot on a serving cell, one of the wake-up request or the another uplink signal is sent according to a priority index or a default configuration.

35. The wireless communication method according to any one of claims 18 to 29, wherein: The wake-up information is carried by one or more random access preambles, and the random access preamble has at least one of the following items: a specific PRACH preamble format, a specific radio network temporary identifier RNTI, or a PRACH resource.

36. A wireless communication terminal, comprising: Transceiver; and The processor is configured to: send a wake-up request including wake-up information to a wireless communication node via the transceiver in one or more wake-up occasions to instruct the wireless communication node to perform one or more operations.

37. The wireless communication terminal according to claim 36, wherein: The processor is further configured to execute the wireless communication method according to any one of claims 2 to 17.

38. A wireless communication node, comprising: Transceiver; and The processor is configured to: receive, by the transceiver, a wake-up request including wake-up information from a wireless communication terminal in one or more wake-up occasions; and perform one or more operations according to the wake-up request.

39. The wireless communication node of claim 38, wherein: The processor is further configured to perform the wireless communication method according to any one of claims 19 to 35.

40. 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 35.

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