Method, apparatus and computer program product for wireless communication

Abstract

A wireless communication method is disclosed. The method comprises: receiving, by a wireless communication terminal from a wireless communication node, indication information of one or more downlink (DL) signal transmissions, the indication information indicating one or more transmission modes for the one or more DL signal transmissions; and receiving, by the wireless communication terminal, the one or more DL signals from the wireless communication node according to the one or more modes for the one or more DL signal transmissions.

Description

[0001] The present application relates generally to wireless communications, and more particularly to fifth generation (5G) or sixth generation (6G) wireless communications.

[0002] In 5G NR (New Radio) technology, during micro-sleep TX (transmit, transmit or transmitter) and in low traffic load scenarios, there are some always-on signals that may consume power, even if these signals are sent with a long period (e.g., a maximum period of 160 milliseconds (ms)). However, according to actual requirements, most transmissions are unnecessary.

[0003] The present disclosure relates to methods, systems, and devices for downlink signal transmission.

[0004] One aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes: receiving, by a wireless communication terminal, one or more downlink DL signal transmission indication information from a wireless communication node, wherein the indication information indicates one or more transmission modes for the one or more DL signal transmissions; and receiving, by the wireless communication terminal, one or more DL signals from the wireless communication node according to the one or more modes for the one or more DL signal transmissions.

[0005] Another aspect of the present disclosure relates to a wireless communication method. In one embodiment, the wireless communication method includes: sending one or more downlink DL signal transmission indication information to a wireless communication terminal by a wireless communication node, wherein the indication information indicates one or more transmission modes for the one or more DL signal transmissions; and sending one or more DL signals to the wireless communication terminal by the wireless communication node according to the one or more modes for the one or more DL signal transmissions.

[0006] Another aspect of the present disclosure relates to a wireless communication terminal. In one embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured to: receive one or more downlink DL signal transmission indication information from a wireless communication node, wherein the indication information indicates one or more transmission modes for the one or more DL signal transmissions; and receive one or more DL signals from the wireless communication node according to the one or more modes for the one or more DL signal transmissions.

[0007] Another aspect of the present disclosure relates to a wireless communication node. In one embodiment, the wireless communication node includes a communication unit and a processor. The processor is configured to: send one or more downlink DL signal transmission indication information to a wireless communication terminal, wherein the indication information indicates one or more transmission modes for the one or more DL signal transmissions; and send one or more DL signals to the wireless communication terminal according to the one or more modes for the one or more DL signal transmissions.

[0008] Various embodiments may preferably implement the following features:

[0009] Preferably, the indication information includes at least one of the following:

[0010] an indication of the availability or unavailability of one or more validity durations for one or more DL signal transmissions;

[0011] an indication of the availability or unavailability of one or more DL signal bursts;

[0012] a change in one or more DL signal transmissions;

[0013] configuration of one or more DL signal transmissions;

[0014] The value of the validity duration or invalidity duration;

[0015] The starting position of the validity duration;

[0016] a gap for ignoring one or more DL signal transmissions;

[0017] the periodicity or duration for one or more DL signal transmissions;

[0018] a start offset of a validity duration or periodicity for one or more DL signal transmissions;

[0019] The number of available or unavailable DL signals;

[0020] a resource set for one or more DL signal transmissions;

[0021] A paging occasion PO offset for one or more DL signal transmissions;

[0022] a value of a system frame number (SFN) or a value of a paging frame (PF) index as a reference point for a valid time of the one or more DL signal transmissions;

[0023] an index of a mode among one or more modes for one or more DL signal transmissions;

[0024] one or more validity durations or periodic deactivation or unavailability for one or more DL signal transmissions;

[0025] an indication that one or more DL signals are not transmitted;

[0026] cessation or unavailability of at least one of the one or more DL signals; or

[0027] Hybrid Automatic Repeat Request Acknowledgement HARQ-ACK feedback used for receiving indication information.

[0028] Preferably, the value of the PF index is not greater than a value of an extended discontinuous reception eDRX cycle or a default paging cycle exceeding 10 milliseconds.

[0029] Preferably, the one or more DL signals include at least one of the following:

[0030] Synchronization signal block SSB;

[0031] Cell-defined CD SSB or non-cell-defined NCD SSB;

[0032] The SSBs available during the validity duration of the wireless communication terminal;

[0033] Primary synchronization signal PSS or secondary synchronization signal SSS;

[0034] Tracking reference signal TRS;

[0035] Channel State Information Reference Signal (CSI-RS); or

[0036] Paging signal.

[0037] Preferably, one or more DL signals are used for at least one of the following: synchronization, automatic gain control AGC adjustment, beam management, beam scanning, channel state information CSI measurement, radio link monitoring measurement, radio resource management RRM measurement or energy saving of wireless communication nodes.

[0038] Preferably, the one or more transmission modes include at least one of the following:

[0039] Validity time or invalidity time;

[0040] Duration of validity;

[0041] The starting point or boundary of the validity period;

[0042] a modification period for one or more DL signal transmissions;

[0043] DL signal transmission opportunity; or

[0044] Resource set.

[0045] Preferably, the valid time or invalid time is determined based on at least one of: a starting point, an end position, a duration of the valid time or the invalid time, a discontinuous reception DRX cycle, an indication of the validity duration or the availability of an available DL signal, or an indication of the validity duration or the unavailability of an unavailable DL signal.

[0046] Preferably, at least one of the starting point or the ending position is determined based on at least one of: a PF offset, a periodicity for one or more DL signal transmissions, an eDRX cycle, a default paging cycle, a DRX cycle, or a modification period.

[0047] Preferably, the duration of the active time or the inactive time is determined based on at least one of: a multiple of the periodicity or the active time duration for one or more DL signal transmissions, or a certain number of consecutive symbols or time slots.

[0048] Preferably, the validity duration is the number of eDRX cycles, default paging cycles or DRX cycles.

[0049] Preferably, the starting position of the validity duration is determined based on at least one of the following: the position of the first PF during the eDRX cycle or the paging cycle, a predetermined system frame number SFN, or a delay after receiving the indication information.

[0050] Preferably, the boundary of the validity duration is determined based on at least one of the following: a gap or a position of receiving the indication information of the one or more DL signal transmissions.

[0051] Preferably, the wireless communication terminal receives one or more DL signal transmission indication information in the time period before the PF, PO, SFN, time slot or symbol, and the wireless communication terminal is not allowed to receive one or more DL signals in the gap.

[0052] Preferably, the wireless communication terminal receives configuration of one or more DL signal transmissions in a first modification period, receives indication information in a second modification period adjacent to the first modification period, and receives one or more DL signals in a third modification period adjacent to the second modification period.

[0053] Preferably, the boundaries of the modification period are determined based on at least one of a period value or an offset.

[0054] Preferably, the boundary of the DL signal transmission opportunity is determined based on the PO offset.

[0055] Preferably, the resource set includes at least one of the following: a first resource set for a basic mode, a second resource set for a normal mode, a third resource set for a mode configured by a system information block (SIB), or a fourth resource set for a user equipment (UE) specific mode.

[0056] Preferably, at least one of the first resource set or the third resource set is determined based on at least one of: a validity duration, a start position of the validity duration, a number of available DL signals, a PO offset, or a modification period.

[0057] Preferably, at least one of the first resource set or the third resource set is configured for a UE in an idle mode.

[0058] Preferably, at least one of the second resource set or the fourth resource set is determined based on at least one of: validity duration, starting position of validity duration, number of available DL signals, PO offset, modification period, DRX cycle, periodicity or duration.

[0059] Preferably, at least one of the second resource set or the fourth resource set is configured for a UE in a connected mode.

[0060] Preferably, the indication information is indicated by at least one of the following: cell-specific DCI, group-common DCI, UE-specific DCI, medium access control control element MAC CE, radio resource control RRC signaling or SIB.

[0061] Preferably, the cell-specific DCI includes at least one of the following: an information block including indications for one or more DL signal transmissions for all UEs in one or more cells or one or more cell groups, a bitmap field including one or more indications for one or more DL signal transmissions for all UEs in one or more cells or one or more cell groups, or an indication field including indications for one or more DL signal transmissions for all UEs in a cell or a cell group.

[0062] Preferably, the one or more cell groups support at least one of the following: the same eDRX parameter, the same default paging cycle or the same DRX cycle.

[0063] Preferably, the group-common DCI comprises at least one of the following: an information block configured for UEs in a UE group; an information block configured for a UE group; or a bitmap in which each bit is configured for one or more UE groups.

[0064] Preferably, the UE group supports at least one of the following: having a valid PO in the same PF or having a valid PO in multiple consecutive PFs during an eDRX cycle or a default paging cycle.

[0065] Preferably, the group common DCI indicates the indication information in at least one of the following fields: time slot format indicator, available resource block RB set indicator or channel occupancy time COT duration indicator, search space set group switching flag, preemption indication, wake-up indication, secondary cell SCell sleep indication, paging indication or TRS availability indication.

[0066] Preferably, the UE-specific DCI includes at least one of the following: a bitmap indicating the availability of one or more validity durations or periods for one or more DL signal transmissions, or an indication field indicating at least one of the following: a reference point, a starting SFN, a time slot, a symbol for the validity duration or DL ​​signal transmission.

[0067] Preferably, the UE-specific DCI indicates the indication information in at least one of the following fields: frequency domain resource allocation, time domain resource allocation, modulation and coding scheme, new data indicator, redundancy version, HARQ process number, uplink or supplementary uplink UL / SUL indicator, HARQ-ACK bitmap, indicator for all remaining bits of the configured grant downlink feedback information CG-DFI, redundancy version, random access preamble index, synchronization signal / physical broadcast channel SS / PBCH index, physical random access channel PRACH mask index, reserved bit, downlink allocation index, physical uplink control channel PUCCH resource indicator, short message field, TRS availability indication, physical downlink shared channel PDSCH group index, HARQ-ACK retransmission indicator or SCell sleep indication.

[0068] Preferably, the RRC signaling includes at least one of the following: one or more DL signal transmission parameters configured for a cell or a cell group, or one or more DL signal transmission parameters configured for a UE or a UE group.

[0069] Preferably, the SIB includes at least one of the following:

[0070] an index of one of the one or more DL signals;

[0071] availability of one or more validity durations of one or more DL signal transmissions;

[0072] availability of at least one of the one or more DL signals;

[0073] Parameters associated with DL signal transmission opportunities;

[0074] The number of RBs or Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by one or more DL signals;

[0075] the periodicity or duration for one or more DL signal transmissions;

[0076] a start offset of a validity duration or periodicity for one or more DL signal transmissions;

[0077] a starting position or reference point for validity duration or for one or more DL signals;

[0078] an indication of whether one or more DL signal transmissions are configured, started, or stopped;

[0079] an indication of whether one or more DL signal transmissions are valid; or

[0080] An indication indicating whether another signal transmission is deactivated.

[0081] Preferably, in response to the wireless communication terminal receiving the configuration of one or more DL signal transmissions, and the wireless communication terminal not receiving indication information associated with the one or more DL signal transmissions in the predefined resources, the wireless communication terminal performs at least one of the following:

[0082] performing operations associated with unavailability of one or more DL signal transmissions during a specific resource period;

[0083] performing operations related to one or more DL signal transmissions being available during a specific resource period; or

[0084] Based on higher layer parameters, operations related to availability or unavailability of one or more DL signal transmissions during specific resources are performed.

[0085] Preferably, in response to the wireless communication terminal receiving the configuration of one or more DL signal transmissions, and the wireless communication terminal not receiving the configuration associated with the one or more DL signal transmissions in the modification period, the wireless communication terminal performs at least one of the following:

[0086] Keep acquiring SIB information during the next continuous modification period; or

[0087] performing operations related to one or more DL signal transmissions being available during a specific resource period; or

[0088] Stop acquiring SIB information, and perform operations related to the unavailability of the one or more DL signal transmissions.

[0089] Preferably, in response to the wireless communication terminal being configured with a change of one or more DL signal transmissions, and during a modification period after receiving another modification period of the system information of the change or DL ​​signal transmission configuration, the wireless communication terminal does not receive information associated with the one or more DL signal transmissions from the acquired SIB, the wireless communication terminal performs at least one of the following:

[0090] Keep acquiring SIB information during the next continuous modification period; or

[0091] Stop acquiring SIB information and perform operations related to unavailability of one or more DL signal transmissions.

[0092] Preferably, in response to the wireless communication terminal being configured with one or more DL signal transmissions, the wireless communication terminal does not receive any DL signal during the effective time for the one or more DL signal transmissions, and the wireless communication terminal performs at least one of the following:

[0093] Configuration of using the last transmission or measurement of another DL signal in PDCCH or PDSCH reception;

[0094] using a default mode or a default configuration for one or more DL signal transmissions; or

[0095] One or more DL signals are received during one or more additional validity durations or periods or modification periods.

[0096] Preferably, priorities for the one or more DL signal transmissions are configured for conflicts between the one or more DL signal transmissions and other signals or channels.

[0097] Preferably, the wireless communication terminal supports at least one of the following: one or more DL signal transmissions, a request or feedback for DL ​​signal transmission configuration, or an SCell without SSB for inter-band carrier aggregation CA.

[0098] Preferably, the DL signal includes a cell-defined SSB CD-SSB and a non-cell-defined SSB NCD-SSB, and the transmission mode includes an offset between the CD-SSB and the NCD-SSB.

[0099] Preferably, the offset includes at least one of the following:

[0100] {sf30, sf40, sf60, sf80, sf120}, or

[0101] {1 / 4, 1 / 2, 3 / 4}, or

[0102] {sf30, sf40, sf60, sf80, sf120, 1 / 4, 1 / 2, 3 / 4}.

[0103] Preferably, the offset comprises:

[0104] {sf5, sf10, sf15, sf30, sf40, sf60, sf80, sf120},

[0105] {sf5, sf10, sf15, sf30, sf60, spare3, spare2, spare1}, or

[0106] {sf5, sf10, sf15, sf30, sf60, sf120, spare2, spare1}, or

[0107] {sf5, sf10, sf15, 1 / 4, 1 / 2, 3 / 4, spare2, spare1}, or

[0108] {sf5, sf10, sf15, 1 / 2, 3 / 4, spare3, spare2, spare1}.

[0109] Preferably, the wireless communication node sends one or more DL signal transmission configurations to the wireless communication terminal in a first modification period, sends indication information in a second modification period adjacent to the first modification period, and receives one or more DL signals in a third modification period adjacent to the sent modification period.

[0110] 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.

[0111] 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 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.

[0112] The above and other aspects and embodiments thereof are described in more detail in the drawings, the description and the claims.

[0113] Figure 1 An example of a transmission mode according to an embodiment of the present disclosure is shown.

[0114] Figure 2 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0115] Figure 3 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0116] Figure 4 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0117] Figure 5 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0118] Figure 6 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0119] Figure 7 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0120] Figure 8 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0121] Fig. 9 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0122] Fig.10 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0123] Fig.11 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0124] Fig.12 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0125] Fig.13 An example of a transmission mode according to another embodiment of the present disclosure is shown.

[0126] Fig.14 A schematic diagram of a wireless communication terminal according to an embodiment of the present disclosure is shown.

[0127] Fig.15 A schematic diagram of a wireless communication node according to an embodiment of the present disclosure is shown.

[0128] In some embodiments, switching to sleep mode and / 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 (transmit / receive) antennas can be reduced.

[0129] However, in some methods, this energy-saving method has some problems. First, there are some common signals and necessary communications, such as SSB (synchronization signal block), SIB1 (system information block), paging, and PRACH (physical random access channel) reception, which prevents the network from easily entering a low-power state (such as sleep mode). Secondly, even if the device can enter a sleep state, waking up the device is also a problem. If a semi-static configuration is used, the device can only be awakened after a period of sleep. If there is a business demand in the sleep state, the device cannot meet the demand, which will cause a lot of delays and affect the user experience.

[0130] In some embodiments, in order to reduce the power consumption of the communication system, the network can be able to enter a low power consumption state for as long as possible. In addition, a more dynamic wake-up mechanism can be introduced to meet flexible business needs and minimize the impact on user experience.

[0131] Many embodiments of the present disclosure are described below, but the present disclosure is not limited thereto. In particular, as used herein, including in the claims, the "or" used in a list of items (e.g., a list of items beginning with phrases such as "at least one" or "one or more") represents an inclusion list, so that, for example, a list of at least one of A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). In addition, as used herein, the phrase "based on" should not be interpreted as referring to a set of closed conditions. For example, an exemplary step described as "based on condition A" can be based on condition A and condition B without departing from the scope of the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".

[0132] In the following paragraphs, the design of at least one DL (downlink) signal transmission and the related triggering method in some embodiments of the present disclosure are described to achieve energy saving without increasing UE (user equipment) power and without degrading experience.

[0133] In one embodiment, the base station (BS) may be a communication node, or a BTS (base transceiver station) in 2G (second generation) wireless communication, or a NodeB in 3G (third generation) wireless communication, or an eNB (E-UTRAN NodeB / enhanced NodeB) in 4G (fourth generation) wireless communication, or a gNB in ​​5G wireless communication, or a base station of LTE (long term evolution) or NR (new air interface access technology), or a base station of a next generation communication system, or a cell in a normal state or an activated state or a deactivated state or a dormant state, or a cell providing basic coverage, or a cell increasing capacity, or a small cell, or a primary cell, or an auxiliary cell.

[0134] Some aspects of the present disclosure are described below, but the present disclosure is not limited thereto. These aspects may include (1) indication information for DL ​​signal transmission, (2) DL signal, (3) mode for DL ​​signal transmission, (4) indication / configuration signaling, (5) fallback mechanism for DL ​​signal transmission, (6) solution for conflict between DL signal transmission resources and other signals / channels, and (7) UE features.

[0135] It should be noted that in the following embodiments, DL signal transmission may be one or more DL signal transmissions, and the present disclosure is not limited to the following embodiments.

[0136] Aspect 1: Indication information for DL ​​signal transmission

[0137] In one embodiment, the UE may receive indication information associated with DL signal transmission. In one embodiment, the indication information includes at least one of the following information associated with DL signal transmission:

[0138] - one or more validity durations or periodic availability / unavailability for DL ​​signal transmission;

[0139] - Availability / unavailability of one or more DL signal bursts;

[0140] -Changes in DL signal transmission;

[0141] -Configuration of DL signal transmission;

[0142] - a value for validity duration or invalidity duration;

[0143] - starting position of the validity period;

[0144] - gaps for ignoring DL signal transmission;

[0145] - the periodicity or duration used for DL ​​signal transmission;

[0146] - the start offset of the validity duration or periodicity of DL signal transmission;

[0147] - Number of available / unavailable DL signals;

[0148] - Resource set used for DL ​​signal transmission;

[0149] - PO (Paging Occasion) offset for DL ​​signal transmission;

[0150] - a value of SFN (system frame number) or a value of PF (paging frame) index as a reference point for the effective time of DL signal transmission; wherein the value of PF index is not greater than the value of eDRX (extended discontinuous reception) cycle or default paging cycle (e.g., 10 ms);

[0151] - an index of a pattern in one or more DL signal transmission patterns; wherein the pattern comprises different combinations of parameters including validity duration, periodicity or duration, and / or starting offset of validity duration or periodicity, or number of available DL signals, or gaps, or reference points;

[0152] - deactivation or unavailability of one or more validity durations or periods for DL ​​signal transmission;

[0153] - No transmission of DL signals;

[0154] - cessation or unavailability of one or more DL signals;

[0155] -HARQ-ACK (Hybrid Automatic Repeat Request Acknowledgement) feedback for receiving an indication of a DL signal; and / or

[0156] -Offset indication between CD-SSB and NCD-SSB; wherein the offset of sending CD-SSB and NCD-SSB at different times can be configured through RRC parameters or SIB indications.

[0157] Aspect 2: DL signal

[0158] In one embodiment, the DL signal includes at least one of the following:

[0159] -SSB in NR;

[0160] -CD (cell defined)-SSB or NCD (non-cell defined)-SSB;

[0161] - SSB with greater periodicity, e.g., greater than the maximum SSB periodicity in some approaches (e.g., NR Rel-17);

[0162] - SSBs available during the validity duration of the UE;

[0163] - Small SSBs occupy a small amount of time domain and frequency domain resources, for example, less than the amount of time domain and frequency domain resources occupied by SSBs in some methods (such as NRRel-17);

[0164] -PSS (Primary Synchronization Signal) or SSS (Secondary Synchronization Signal);

[0165] -TRS (Tracking Reference Signal);

[0166] - CSI-RS (Channel State Information Reference Signal); and / or

[0167] -Paging signal.

[0168] In one embodiment, DL signal transmission can be used for synchronization, AGC (automatic gain control) adjustment or beam management, or beam scanning, or CSI (channel state information) measurement, radio link monitoring measurement, or RRM (radio resource management) measurement, or BS energy saving, etc.

[0169] Aspect 3: Mode for DL ​​signal transmission

[0170] The modes used for DL ​​signal transmission are used to determine how to transmit DL signals in the time domain and frequency domain. These modes include at least one of the following:

[0171] 1) Valid time or invalid time

[0172] In some embodiments, the valid time or the invalid time may be determined by at least one of a reference point, an end position, a validity duration, and a DRX (discontinuous reception) cycle. In some embodiments, the valid time corresponds to a validity duration or an indication of the availability of a usable DL signal, and the invalid time corresponds to a validity duration or an indication of the unavailability of an unusable DL signal.

[0173] like Figure 1 As shown, the indication of the availability of the validity duration may indicate a valid time or validity duration during which the UE may receive the DL signal.

[0174] like Figure 2 As shown, the indication that the validity duration is unavailable may indicate an invalid time or a validity duration during which the UE may receive a DL signal.

[0175] In some embodiments, the reference point may be defined as the start of a valid time or invalid time. The UE assumes that the DL signal is available or unavailable from the reference point. The reference point is determined by at least one of a PF offset, a periodicity of DL signal transmission, an eDRX cycle, a default paging cycle, a DRX cycle, and / or a modification period.

[0176] For example, the reference point may be the first PF during eDRX cycle n or default paging cycle n.

[0177] For example, the reference point may be the start of a DRX cycle or the start of a modification period after a DRX cycle or the start of a modification period for receiving indication information of a DL signal.

[0178] For example, the reference point may be configured as PF n, SFN n, or timeslot n.

[0179] In some embodiments, the end position of the validity duration or the end position of the availability or unavailability of an available or unavailable DL signal is determined by at least one of a PF offset, a periodicity of DL signal transmission, an eDRX cycle, a default paging cycle, a DRX cycle and / or a modification period.

[0180] For example, the ending position may be defined as the first PF, PO, SFN, timeslot, or symbol after the last available DL signal or indication of an available DL signal is received.

[0181] For example, the end position may be the start of the gap before the PF or PO valid for the UE.

[0182] For example, the end position may be the end or start of the periodicity of DL signal transmission after the PF, SFN, PO or time slot of the indication information of the DL signal is received.

[0183] In some embodiments, the duration of the active time may be equal to a multiple (eg, 10 times) of the periodicity or validity duration of the DL signal transmission, or equal to the number of consecutive symbols or slots that are not configured for uplink intervention.

[0184] 2) Duration of validity of DL signal transmission

[0185] In some embodiments, the value of the validity duration is one or more eDRX cycles, or a default paging cycle, or the number of DRX cycles.

[0186] 3) The starting position or boundary of the validity duration

[0187] In some embodiments, the starting position or boundary of the validity duration is determined by at least one of the following:

[0188] - a (predetermined) position of the first PF during the eDRX cycle or paging cycle, or a predetermined SFN, such as (SFN+PF_offset) mod T=0, where T is the value of the eDRX cycle or paging cycle;

[0189] - delay in receiving the instruction; and / or

[0190] - receiving the interval or position of the indication information of the DL signal transmission.

[0191] In some embodiments, the boundary of the validity duration is determined by a gap or position of receiving the indication information of the DL signal transmission. In some embodiments, the gap is the duration before the PF, PO, SFN time slot or symbol of the indication information of the DL signal transmission is received. In some embodiments, the UE assumes that the DL signal is not available during the gap.

[0192] 4) The periodicity or duration of DL signal transmission

[0193] In one embodiment, the UE may assume that the DL signal transmitted during the duration of each period is available (see Figure 3 ).

[0194] In one embodiment, the DL signal may be continuously available for a number of periods during the validity duration (see Figure 4 ).

[0195] 5) Modification period for DL ​​signal transmission

[0196] Figure 5 A transmission mode according to another embodiment of the present disclosure is shown.

[0197] In one embodiment, if the UE is configured with a DL signal transmission configuration (e.g., Figure 5 period n-1), the UE may modify the period in the next modification period (e.g. Figure 5 During the time period n) in the DL signal transmission, indication information is obtained.

[0198] In one embodiment, after the UE receives the indication information of DL signal transmission during the modification period, the UE may assume that the UE will transmit the DL signal during the next modification period (eg, Figure 5 DL signal transmission during time period n+1) in is available.

[0199] In one embodiment, the above two embodiments can be combined.

[0200] In one embodiment, the boundary modification period may be determined by a period value and / or an offset. In one embodiment, the period value may be a period value of the modification period. For example, the boundary of the modification period may be determined by SFN, where (SFN+offset) mod period value=0, mod represents a mod function. In some examples, the offset may be zero.

[0201] 6) DL signal transmission timing

[0202] In one embodiment, the DL signal transmission opportunity may be Determined by PO offset .

[0203] In one embodiment, the DL signal transmission opportunity may be used for multiple available DL signals before the PO offset, wherein the PO offset is before the PO valid for the UE (see Figure 6 ).

[0204] In one embodiment, the DL signal transmission opportunity can be used for multiple available DL signals after the PO offset, where the PO offset is after the PO valid for the UE (see Figure 7 ).

[0205] 7) Resource set for DL ​​signal transmission

[0206] In one embodiment, the resource set used for DL ​​signal transmission may include at least one of the following: a first resource set for a basic mode, a second resource set for a normal mode, a third resource set for a mode configured by an SIB, or a fourth resource set for a UE-specific mode. In one embodiment, the resource set indicates a time and / or frequency resource set used for DL ​​signal transmission.

[0207] In one embodiment, the first resource set for the basic mode includes at least one of the following resources: validity duration, starting position of validity duration, number of available DL signals, PO offset and / or modification period.

[0208] In one embodiment, the second resource set used for the normal mode includes at least one of the following resources: the resource, periodicity and / or duration mentioned above for the first resource set.

[0209] In one embodiment, the third resource set for the mode configured by the SIB includes at least one of the following resources: validity duration, starting position of validity duration, number of available DL signals, PO offset and / or modification period.

[0210] In one embodiment, the fourth resource set used for the UE-specific mode includes at least one of the following resources: the resources, periodicity and / or duration mentioned above for the first resource set.

[0211] In one embodiment, the first resource set or the third resource set is configured for a UE in an idle mode; and the second resource set or the fourth resource set is configured for a UE in a connected mode.

[0212] In one embodiment, if the first resource set or the third resource set is in progress and the second resource set or the fourth resource set is configured for the UE, the UE may assume that all DL signal transmissions in the first resource set or the second resource set or the third resource set or the fourth resource set are available.

[0213] Aspect 4: Indication / Configuration Signaling

[0214] In one embodiment, the indication information related to DL signal transmission may include at least one of the following: cell-specific DCI; group-common DCI; UE-specific DCI; MAC CE signaling; RRC signaling; SIB signaling; BS interaction; and / or events.

[0215] Cell-specific DCI

[0216] In one embodiment, the cell-specific DCI may be a DCI that carries information of all UEs in the cell for indicating indication information related to DL signal transmission. The CRC (cyclic redundancy check) of the cell-specific DCI may be scrambled by P-RNTI, SI-RNTI, TC-RNTI and RA-RNTI.

[0217] In one embodiment, the information field of the cell-specific DCI may be designed in at least one of the following ways:

[0218] - an information block in a cell-specific DCI, which is configured for DL ​​signal transmission indication of a cell or a cell group. In one embodiment, the number of blocks is not greater than the number of cells or cell groups configured by a higher layer parameter. In one embodiment, the number of blocks is equal to 1. In one embodiment, the starting position of the information block is determined by the parameters configured by the higher layer for one or more cells or cell groups;

[0219] - A bitmap field in a cell-specific DCI configured for DL ​​signal transmission indication for one or more cells or cell groups. In one embodiment, if no higher-layer parameters associated with DL signal transmission are configured, the bit width of the bitmap field is 0 bits. Otherwise, the bit width of the bitmap field is a bitmap of N bits (e.g., N is an integer) determined according to the number of cells or cell groups provided by the higher-layer parameters. Each bit in the bitmap corresponds to one or more cells or cell groups configured by the higher-layer parameters; and / or

[0220] - An indication field in a cell-specific DCI configured for DL ​​signal transmission indication in the cell.

[0221] In one embodiment, the cell group may be configured by the BS. Cells supporting the same eDRX parameters or default paging cycle or DRX cycle may be configured in a cell group. The cell may be an SCell (secondary cell), an activated SCell, a dormant SCell and / or a PCell (primary cell).

[0222] In one embodiment, the UE may assume that the SCS (subcarrier spacing) configuration used for transmission or measurement on DL signals is the same for a group of cells.

[0223] Group Common DCI

[0224] In one embodiment, DCI format 2_7 with CRC scrambled by RNTI, or DCI format 1_0 with CRC scrambled by P-RNTI, or DCI format 2_6 with CRC scrambled by PS-RNTI, or DCI format 2-0, 2-1, 2-2, 2-3, 2-4 or 2-5 may be used to carry indication information for DL ​​signal transmission. The field of the indication information may be designed as follows:

[0225] - If an existing DCI format is used to indicate indication information associated with DL signal transmission, or a higher layer parameter associated with DL signal transmission is configured for a UE group, an existing information field or a new information field is used to indicate information associated with DL signal transmission. The existing field may include at least one of the following:

[0226] a. "Slot format indicator" or available RB set indicator or COT duration indicator or search space set group switching flag in DCI format 2_0 with CRC scrambled by SFI-RNTI;

[0227] b. Preemptive indication in DCI format 2_1 with CRC scrambled by INT-RNTI;

[0228] c. Fields in DCI format 2_2 with CRC scrambled by TPC-PUSCH-RNTI or TPC-PUCCH-RNTI, or DCI format 2_3 with CRC scrambled by TPC-SRS-RNTI, or DCI format 2_4 with CRC scrambled by CI-RNTI, or DCI format 2_5 with CRC scrambled by AI-RNTI;

[0229] d. "Wake-up indication" in a block of DCI format 2_6 with CRC scrambled by PS-RNTI

[0230] or "SCell Sleep Indication" field; and / or

[0231] e. Paging indication field or TRS (Tracking Reference Signal) availability indication of DCI format 2_7 with CRC scrambled by PEI-RNTI.

[0232] - The UE group may be determined based on at least one of the following:

[0233] a. UE identifier of the UE in the group configured by the higher layer parameters;

[0234] b. The number of UE groups configured by higher-level parameters; and / or

[0235] c. Within an eDRX cycle or a default paging cycle, UEs with valid PO in the same PF or multiple consecutive PFs are configured as the same UE group.

[0236] - Group Public The information field in the DCI may indicate one or more UEs according to the following:

[0237] a. An information block in the group common DCI is configured for UEs in the UE group;

[0238] b. An information block in the group common DCI is configured for the UE group; and / or

[0239] c. The bits in the bitmap in the group-common DCI are configured for one or more UE groups.

[0240] UE-specific DCI

[0241] In one embodiment, DCI format 0-1 or DCI format 0-2, or DCI format 1-1 or DCI format 1-2 or new DCI may be used to carry indication information for DL ​​signal transmission.

[0242] In one embodiment, an indication field in the UE-specific DCI is configured for DL ​​signal transmission indication of the UE. In one embodiment, the indication field is a bitmap for indicating one or more validity durations or periodic availability for DL ​​signal transmission. In one embodiment, the indication field is an n-bit field for indicating the validity duration or reference point or starting SFN / time slot / symbol of the available DL signal transmission.

[0243] In one embodiment, one or more existing information fields are used to indicate indication information related to DL signal transmission. The existing information fields include:

[0244] - Fields of "Frequency domain resource allocation", "Time domain resource allocation", "Modulation and coding scheme", "New data indicator", "Redundancy version", "HARQ process number" or "UL / SUL indicator" in DCI format 0_0 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI;

[0245] - Used to indicate CG-DFI in DCI format 0_1 ​​with CRC scrambled by C-RNTI or CS-RNTI or SP-CSI-RNTI or MCS-C-RNTI, "Frequency domain resource allocation", "Time domain resource allocation", "Modulation and coding scheme", "New data indicator", "Redundancy version", "HARQ process number"

[0246] or “HARQ-ACK bitmap” or “all remaining bits” of “UL / SUL indicator”;

[0247] - "Frequency domain resource allocation", "Time domain resource allocation", "Modulation and coding scheme", "New data indicator", "Redundancy version", "HARQ process number" or "UL / SUL indicator" in DCI format 0_2 with CRC scrambled by C-RNTI or CS-RNTI or SP-CSI-RNTI or MCS-C-RNTI;

[0248] - "Random access preamble index", "UL / SUL indicator", "SS / PBCH index" in DCI format 1_0 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI,

[0249] "PRACH mask index", "reserved bits", "time domain resource allocation", "modulation and coding scheme",

[0250] "New data indicator", "Redundancy version", "HARQ process number", "Downlink allocation index",

[0251] "PUCCH resource indicator", "short message" or "TRS availability indication"; and / or

[0252] - "Frequency domain resource allocation", "time domain resource allocation", "Modulation and coding scheme", "New data indicator" for transport block 1, "Redundancy version", "HARQ process number", "PDSCH group index" or "HARQ-ACK retransmission indicator" for transport block 1, or "SCell sleep indication" in DCI format 1_1 or DCI format 1_2 with CRC scrambled by C-RNTI or CS-RNTI or MCS-C-RNTI.

[0253] MAC CE signaling

[0254] In one embodiment, MAC CE signaling is used to indicate the indication information, for example, information including activation and / or initiation of DL signal transmission or deactivation and / or stop of DL signal transmission or change of DL signal transmission.

[0255] RRC signaling

[0256] In one embodiment, the parameters used for DL ​​signal transmission include at least one of the following parameters:

[0257] Indication information used for the above DL signal transmission;

[0258] Parameters configured for DL ​​signal transmission for a cell or a group of cells; and / or

[0259] Parameters configured for DL ​​signal transmission for a UE or a group of UEs.

[0260] SIB signaling

[0261] In one embodiment, if the UE is configured to support DL signal transmission, the UE may acquire SIB information during the valid modification period.

[0262] In one embodiment, the UE assumes that the modification period for SIB acquisition is the modification period n after the modification period n-1 in which the indication of SI change is received, or the modification period according to the mechanism in the conventional method.

[0263] In one embodiment, if the information carried by the SIB indicates the start or availability of DL signal transmission, the DL signal transmission during the modification period n+1 is available to the UE. If the SIB acquired by the UE does not carry the indication information for DL ​​signal transmission, the UE assumes that the DL signal transmission has been stopped, not started, or is not available. If the UE does not acquire the SIB during the modification period n+1, the UE assumes that the DL signal transmission has been stopped, not started, or is not available.

[0264] In one embodiment, the indication information carried by SI B includes at least one of the following:

[0265] Index of DL signal;

[0266] availability of one or more validity durations for DL ​​signal transmissions;

[0267] availability of one or more DL signals;

[0268] Parameters associated with DL signal transmission opportunities;

[0269] The number of RBs or OFDM symbols occupied by the DL signal;

[0270] The periodicity or duration used for DL ​​signal transmission;

[0271] The validity duration or start offset of the periodicity for DL ​​signal transmission;

[0272] The validity duration or starting position or reference point of the available DL signal;

[0273] Whether DL signal transmission is configured / started / stopped;

[0274] Whether DL signal transmission is effective; and / or

[0275] Whether other signal transmission is deactivated.

[0276] BS Interaction

[0277] In one embodiment, if the UE is configured to support DL signal transmission, information associated with DL signal transmission is exchanged between the BS and other peer BSs or neighbor BSs. The exchanged information includes at least one of the following:

[0278] Whether the serving cell supports DL signal transmission can be exchanged between wireless communication nodes through the Xn interface;

[0279] Whether a UE group supports DL signal transmission can be exchanged between wireless communication nodes via an Xn interface; and / or

[0280] The Xn interface supports the exchange of signalling information between two NG-RAN nodes and forwards PDUs to their respective tunnel endpoints.

[0281] event

[0282] In one embodiment, if the UE is configured with DL signal transmission, the DL signal transmission is triggered by at least one of an event on the BS side, an event on the UE side and / or a timer.

[0283] In one embodiment, the event on the BS side may include at least one of the following:

[0284] The base station receives a DL signal transmission request sent by the UE;

[0285] The BS receives confirmation information of DL signal transmission configuration through multiple UEs, wherein the number of UEs is not less than 1, or greater than a threshold; the threshold is equal to a multiple of the number of idle mode UEs or connected mode UEs in the cell; wherein the multiple is a fraction and is greater than 0;

[0286] The serving cell is configured with DTX;

[0287] The RSRP / RSRQ value reported by one or more UEs is lower than the threshold;

[0288] The load percentage is less than a threshold; and / or

[0289] The DL or UL data amount is less than the threshold.

[0290] In one embodiment, the event on the UE side may include at least one of the following:

[0291] The UE reports confirmation of the DL signal transmission configuration;

[0292] The UE's DL signal transmission is restricted to the serving cell;

[0293] The UE does not need to perform PDCCH monitoring for a period of time;

[0294] The measurement result based on SSB or CSI-RS or TRS or PTRS or PRS resources is less than the threshold;

[0295] The RSRP / RSRQ measurement result is less than the threshold;

[0296] The associated SSB and CSI-RS resources configured by higher layer parameters are quasi co-located for the UE; and / or

[0297] The RRC configuration or reconfiguration including the indication information associated with the DL signal transmission includes at least one of the following:

[0298] - indication information for the above-mentioned DL signal transmission;

[0299] - modify the time period; and / or

[0300] - A serving cell ID or a serving cell group ID used to support DL signal transmission.

[0301] In one embodiment, a timer is used for DL ​​signal transmission. When the timer times out, the DL signal transmission is stopped or started.

[0302] In one embodiment, the offset of transmitting CD-SSB and NCD-SSB at different times can be configured via RRC parameters or SIB indications. The offset indication between CD-SSB and NCD-SSB is 3 bits. The value of the 3 bits is defined according to at least one of the following four methods:

[0303] 1. The three-bit value includes at least one of {sf30, sf40, sf60, sf80, sf120} in addition to {sf5, sf10, sf15};

[0304] For example, {sf5, sf10, sf15, sf30, sf40, sf60, sf80, sf120}, or

[0305] {sf5,sf10,sf15,sf30,sf40,sf60,sf80,spare1}, or

[0306] {sf5, sf10, sf15, sf30, sf60, sf80, spare2, spare1}, or

[0307] {sf5, sf10, sf15, sf30, sf60, spare3, spare2, spare1}, or

[0308] {sf5, sf10, sf15, sf30, sf60, sf80, spare2, spare1}, or

[0309] {sf5, sf10, sf15, sf30, sf60, sf120, spare2, spare1}, in this case the offset can be described as 5*2^n, where n=0,1,2,3,4,5.

[0310] Among them, the value sf5 indicates that the first burst of the non-cell defined SSB is transmitted 5ms later than the first burst of the CD-SSB transmitted after the first symbol of SFN=0 of the serving cell, the value sf10 indicates that the first burst of the non-cell defined SSB is transmitted 10ms later than the first burst of the CD-SSB transmitted after the first symbol of SFN=0 of the serving cell, and so on.

[0311] 2. In addition to {sf5, sf10, sf15}, the 3-bit value also includes at least one of {1 / 4, 1 / 2, 3 / 4};

[0312] For example, {sf5, sf10, sf15, 1 / 4, 1 / 2, 3 / 4, spare2, spare1}. Another example, {sf5, sf10, sf15, 1 / 2, 3 / 4, spare3, spare2, spare1}. The value sf5 indicates that the first burst of the non-cell defined SSB is transmitted 5 ms later than the first burst of the CD-SSB transmitted after the first symbol of the serving cell SFN=0. The value 1 / 4 indicates that the first burst of the non-cell defined SSB is transmitted 1 / 4*T ms later than the first burst of the CD-SSB transmitted after the first symbol of the serving cell SFN=0, and T is the period of the CD-SSB, for example, defined by ssb-periodicityServingCell.

[0313] 3. Define the offset value of the 3 bits in position based on {1 / 4, 1 / 2, 3 / 4}*T. T = {ms5, ms10, ms20, ms40, ms80, ms160}, which is the periodicity of CD-SSB, for example, defined by ssb-periodicityServingCell;

[0314] 4. The offset values ​​are less than or equal to the periodicity of SSB, or some of the values ​​are less than the periodicity of SSB.

[0315] For example, when the SSB periodicity is 5ms, the offset should be one of 0 or 5ms.

[0316] For example, when the SSB periodicity is 10ms, the offset should be one of 0, 5 or 10ms.

[0317] For example, when the SSB periodicity is 80ms, the offset should be one of 0, 5, 10ms or {1 / 4, 1 / 2, 3 / 4}*T ms.

[0318] Aspect 5: Back-off mechanism for DL ​​signal transmission

[0319] In one embodiment, if the UE is provided by the configuration of DL signal transmission, and the UE does not receive indication information associated with DL signal transmission in the predefined resources, the UE may assume that: DL signal transmission is not available during the specific resource period; DL signal transmission is available during the specific resource period; or whether DL signal transmission is available during the specific resource period is determined by the high-level parameter configuration. In one embodiment, the high-level parameter configuration may indicate whether the availability of DL signal transmission is true or false.

[0320] In one embodiment, the DL signal transmission that is unavailable during the specific resource period may include at least one of the following various DL signal transmissions:

[0321] DL signal transmission is unavailable during the validity duration or periodicity following a predefined resource;

[0322] DL signal transmission is unavailable during the validity duration or periodicity following a predefined PDCCH monitoring opportunity; and / or

[0323] DL signal transmission during a modification period following the modification period for acquiring the SIB is not available.

[0324] In one embodiment, the DL signal transmission available during the above-mentioned specific resource period may include at least one of the following various DL signal transmissions:

[0325] Before the time of the new indication information associated with the DL signal transmission, the DL signal transmission from the DL signal transmission configuration until the start of the gap is available;

[0326] DL signal transmission from the start of DL signal transmission configuration until the start of the next indication information associated with DL signal transmission is available;

[0327] DL signal transmission is available during a first validity duration or period after detecting the predefined resource for the indication information for DL ​​signal transmission;

[0328] DL signal transmission is available during a valid time after a predefined resource for detecting indication information for DL ​​signal transmission; the valid time is configured by a higher layer parameter; and / or

[0329] DL signal transmission during a first modification period after a modification period for acquiring a SIB indicating information for DL ​​signal transmission is available.

[0330] In one embodiment, if the UE is provided by the configuration of the DL signal transmission, and the UE does not obtain the SIB indication information associated with the DL signal transmission within the modification period, the UE may assume that:

[0331] Keep acquiring SIB information during the next continuous modification period; or

[0332] Assume that DL signal transmission is available during a specific resource period; or

[0333] Stop acquiring SIB information and assume that DL signal transmission is unavailable.

[0334] In one embodiment, if the UE is configured with a change in DL signal transmission, and during a modification period after receiving the SI change or the modification period of the DL signal transmission configuration, the UE does not receive information associated with the DL signal transmission from the acquired SIB, the UE may assume that:

[0335] Continue to obtain SIB information during the next continuous modification period; or

[0336] Stop acquiring SIB information and assume that DL signal transmission is unavailable.

[0337] In one embodiment, if DL signal transmission is ongoing and the UE is indicated by a change in the DL signal transmission, if the UE does not receive indication information associated with the change in the DL signal transmission, the UE may assume that the original signal transmission is not changed.

[0338] In one embodiment, if the UE is configured with DL signal transmission, and the UE does not receive any DL signal during the valid time of the DL signal transmission, the UE may assume that:

[0339] The PDCCH or PDSCH reception associated with the transmission or measurement of the DL signal may use the most recent transmission or measurement of the DL signal; or

[0340] The original DL signal transmission is available;

[0341] or selecting transmission or measurement on DL signals according to UE requirements; or

[0342] DL signal transmission returns to a default mode of DL signal transmission, or a default configuration for DL ​​signal transmission; wherein the default mode or default configuration for DL ​​signal transmission is a mode or configuration used for the most recent DL signal transmission, or a mode or configuration indicated by RRC signaling; or

[0343] DL signal transmission during one or more additional validity durations or periods or modification periods may be available.

[0344] Aspect 6: Conflict between DL signal transmission resources and other signals / channels

[0345] In one embodiment, if a transmission opportunity of a DL signal overlaps in time with another channel / signal transmission or reception, the UE receives the DL signal / channel with a higher priority.

[0346] In one embodiment, the priority is determined by an indication from the gNB.

[0347] Aspect 7: UE characteristics

[0348] In one embodiment, the UE features include at least one of: support for DL ​​signal transmission; support for request or feedback for DL ​​signal transmission configuration; and / or support for inter-band carrier aggregation (CA) by SCell without SSB.

[0349] In idle and low resource utilization situations, common signal transmission (e.g., SSB or SIB) occupies a large portion of the time domain. According to system-level simulations, if SSB or SIB transmission can be limited or eliminated on the SCell, the BS can obtain a lot of energy saving benefits. For intra-band CA, UE features that support SCells without SS / PBCH blocks are defined. For inter-band CA, UE features that support SCells without SS / PBCH blocks can also be defined. That is, for inter-band CA, the UE features may indicate whether the UE can use SS / PBCH blocks from other cells for time / frequency synchronization of the SCell without SS / PBCH blocks. For SCells without SS / PBCH blocks, UE features that support CSI-RS RRM measurements can be used for time / frequency synchronization of the SCell. That is, the UE can perform measurements based on CSI-RS resources, and the timing of the CSI-RS resources can be based on the timing of the serving cell.

[0350] In the following paragraphs, some operation examples of the present disclosure are provided, but the present disclosure is not limited thereto.

[0351] Method 1: Indication of available DL signal transmission

[0352] In one embodiment, the DL signal transmission may be an SSB transmission. The available SSBs are indicated according to at least one of: validity duration, number of available SSBs, SIB indication, DCI indication, higher layer parameters and / or a fallback mechanism.

[0353] Duration of validity

[0354] In one embodiment, the UE assumes that the SSB transmitted during the validity duration is available. If the parameters of the available SSB are provided, the SSB is transmitted during the duration (e.g., validity duration) from the first position to the start of the frame (e.g., the second position) that can be used for paging reception of the UE.

[0355] In one embodiment, Figure 8 As shown, the first position is the start of the first paging frame associated with multiple PDCCH monitoring opportunities of DCI format 2_7; wherein the start of the frame (e.g., the second position) is a frame associated with a PO for receiving paging information. The validity duration is between the first position and the start of the frame associated with the PO (e.g., the second position).

[0356] In one embodiment, Fig. 9 As shown, the first position is the start of a paging cycle (e.g., paging cycle n+1), immediately following the last most recent PO (e.g., paging cycle n) in which paging was received; wherein the start of the frame (e.g., the second position) is the frame before the start of the gap; wherein the gap is the duration before the start of the first valid PF or valid PO for the UE during the paging cycle. The validity duration is from the first position to the start of the frame (e.g., the second position) before the start of the gap.

[0357] In one embodiment, Fig.10 As shown, the first position is the start of the validity duration during paging cycle n+1 after paging cycle n or n-1 associated with the last most recent PO received paging. The start of the validity duration is indicated by DCI format 1_0 with CRC scrambled by P-RNTI or DCI format 2_7 with CRC scrambled by RNTI. In one embodiment, the start of the validity duration is the start of PF n during paging cycle n+1, PF n represents the nth PF during paging cycle n+1.

[0358] In one embodiment, the validity duration of an available SSB is associated with the start of a PF associated with a paging cycle or the position of a PO associated with a UE. The validity duration is a multiple of a paging cycle or a multiple of a PF, and the value of the multiple is less than 1 (e.g., 1 / 32, 1 / 16, 1 / 10, 1 / 8, 1 / 4, or 1 / 2) or a positive number greater than 1; or the validity duration is a number of time slots not greater than 2.

[0359] In one embodiment, the gap is used as the duration from the end of the validity duration of the UE to the start of the first valid PF or valid PO during paging cycle n+1, or the duration before the start of the first valid PF or valid PO of the UE during paging cycle n+1; wherein the UE assumes that DL signal transmission is restricted during the gap, or wherein measurements based on DL signals are restricted during the gap. The gap is a number of symbols configured by a higher layer.

[0360] In one embodiment, the starting position of the paging cycle or PF or PO is determined by higher layer parameters.

[0361] The number of available SSBs

[0362] In one embodiment, the number of available SSBs is indicated by DCI or a higher layer parameter. The UE assumes the number of available SSBs transmitted before the first position (e.g., the start of the validity duration). After the number of SSBs received within the validity duration reaches the number of available SSBs, newly received SSBs are not available.

[0363] In one embodiment, Fig.11 As shown, the first position is the first valid PF of the paging cycle (eg, paging cycle n+1) after the paging cycle (eg, paging cycle n) indicating the DCI is received.

[0364] In one embodiment, the number of available SSBs is no greater than the maximum number of SSBs configured for the cell or UE.

[0365] In one embodiment, the reference point of the first available SSB is the SSB transmitted after DCI format 2_7 with CRC scrambled by RNTI or DCI format 1_0 with scrambled by P-RNTI, which carries an indication of the available SSB.

[0366] In one embodiment, the number of SSBs measured by the UE is less than the number of available SSBs, and the UE may assume that the SSBs transmitted during the gaps are available.

[0367] SIB Instructions

[0368] In one embodiment, the validity duration or the number of available SSBs may be indicated by the SIB. The UE assumes that the SSBs transmitted during the validity duration are available, or the number of available SSBs transmitted during the validity duration may be used for paging reception.

[0369] Fallback mechanism

[0370] In one embodiment, after a paging cycle associated with the end of the validity duration, the UE assumes that SSB transmission according to higher layer configuration is available until an indication of the validity duration or the number of available SSBs.

[0371] Method 2: Indication of DL signal transmission deactivation and DL signal transmission activation

[0372] Fig.12 and 13 Different groups of modes according to embodiments of the present disclosure are shown.

[0373] In one embodiment, if configuration of DL signal transmission in the first method is provided, DL signal transmission in the second method may be deactivated or ignored.

[0374] In one embodiment, the DL signal transmission in the first method has multiple DL signal transmission modes. The multiple modes of DL signal transmission include at least one of the following:

[0375] The first set of patterns determined by the parameters includes at least one of: validity duration of DL signal transmission; number of available DL signals; gap; reference point of validity duration start; and / or reference point of first available DL signal transmission;

[0376] The second set of patterns determined by the parameters includes at least one of: periodicity of DL signal transmission; duration of DL signal transmission; number of DL signal bursts within the duration; and / or gaps; wherein the periodicity of DL signal transmission is greater than 160ms; and / or

[0377] The third group of patterns determined by parameters includes at least one of: periodicity of DL signal transmission; duration of DL signal transmission; number of DL signal bursts within the duration; and / or validity duration; wherein the duration or periodicity during the validity duration is valid for DL ​​signal transmission.

[0378] In one embodiment, the time domain or frequency domain resources occupied by the DL signal in the first method are less than the time domain or frequency domain resources occupied by the DL signal in the second method.

[0379] In one embodiment, the SIB may configure one of multiple modes for a UE or a cell.

[0380] In one embodiment, if the configuration of DL signal transmission in the first method is provided, DL signal transmission in the second method is also effective.

[0381] Fig.14 A schematic diagram of a wireless communication terminal 30 according to an embodiment of the present disclosure is provided. The wireless communication terminal 30 may be a tag, a mobile phone, a laptop, a tablet computer, an e-book, or a portable computer system, and is not limited thereto. The wireless communication terminal 30 may include a processor 300 such as a microprocessor or an application-specific integrated circuit (ASIC), a storage unit 310, and a communication unit 320. The storage unit 310 may be any data storage device that stores program code 312 accessed and executed by the processor 300. Embodiments of the storage code 312 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 320 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 300. In one embodiment, the communication unit 320 sends and receives signals through at least one antenna 322.

[0382] In one embodiment, the storage unit 310 and the program code 312 may be omitted, and the processor 300 may include a storage unit with stored program code.

[0383] The processor 300 may implement any one of the steps of the exemplary embodiments on the wireless communication terminal 30 , for example, by executing the program code 312 .

[0384] The communication unit 320 may be a transceiver. Alternatively or additionally, the communication unit 320 may combine a transmitting unit and a receiving unit configured to transmit and receive signals to and from a wireless communication node, respectively.

[0385] In some embodiments, the wireless communication terminal 30 may be used to perform the above-mentioned UE operations. In some embodiments, the processor 300 and the communication unit 320 cooperate to perform the above-mentioned operations. For example, the processor 300 performs the operations and sends or receives signals, messages and / or information through the communication unit 320.

[0386] Fig.15A schematic diagram of a wireless communication node 40 (e.g., a session management node) according to an embodiment of the present disclosure. The wireless communication node 40 may be a satellite, a base station (BS), a gNB, a network entity, a domain name system (DNS) server, a mobility management entity (MME), a serving gateway (S-GW), a packet data network (PDN) gateway (P-GW), a radio access network (RAN), a next generation RAN (NG-RAN), a data network, a core network, a communication node in a core network, or a radio network controller (RNC), and is not limited here. In addition, the wireless communication node 40 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 wireless communication node 40 may include a processor 400 such as a microprocessor or an ASIC, a storage unit 410, and a communication unit 420. The storage unit 410 may be any data storage device that stores a program code 412 accessed and executed by the processor 400. Examples of the storage unit 412 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 420 may be a transceiver and is used to transmit and receive signals (eg, messages or packets) according to the processing result of the processor 400. In an example, the communication unit 420 transmits and receives signals via at least one antenna 422.

[0387] In one embodiment, storage unit 410 and program code 412 may be omitted. Processor 400 may include a storage unit with stored program code.

[0388] The processor 400 may implement any of the steps described in the exemplary embodiments on the wireless communication node 40 , for example by executing the program code 412 .

[0389] The communication device 420 may be a transceiver. Alternatively or additionally, the communication unit 420 may combine a sending unit and a receiving unit configured to send and receive signals, messages or information to and from a wireless communication node or a wireless communication terminal, respectively.

[0390] In some embodiments, the wireless communication node 40 can be used to perform the operations of the above-mentioned BS or gNB. In some embodiments, the processor 400 and the communication unit 420 cooperate to perform the above-mentioned operations. For example, the processor 400 performs the operation and sends or receives a signal through the communication unit 420.

[0391] According to one embodiment of the present disclosure, a wireless communication method includes: receiving, by a wireless communication terminal (e.g., the UE described above), indication information (e.g., the indication information described above) of one or more downlink (DL) signal transmissions (e.g., the one or more DL signal transmissions described above) from a wireless communication node (e.g., the gNB or BS described above), wherein the indication information indicates one or more transmission modes (e.g., the modes described above) for DL ​​signal transmission; and receiving, by the wireless communication terminal, one or more DL signals (e.g., the one or more DL signals described above) from the wireless communication node according to the one or more modes for DL ​​signal transmission.

[0392] According to another embodiment of the present disclosure, a wireless communication method includes: sending one or more downlink (DL) signal transmission indication information by a wireless communication node to a wireless communication terminal, wherein the indication information indicates one or more transmission modes used for the one or more DL signal transmissions; and sending one or more DL signals by the wireless communication node to the wireless communication terminal according to the one or more modes used for the one or more DL signal transmissions.

[0393] The details of the wireless communication method can be determined by referring to the embodiments described above and will not be repeated here.

[0394] Although various embodiments of the present disclosure have been described above, it should be understood that these embodiments are only examples and not limitations. Similarly, various figures can 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, these people should understand that the present disclosure is not limited to the example architectures or configurations shown, but can be implemented using various alternative architectures and configurations. In addition, as those of ordinary skill in the art should understand, one or more features of an embodiment can 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-mentioned exemplary embodiments.

[0395] 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 can 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, or that the first element must precede the second element in some manner.

[0396] 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 may be represented by voltage, current, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0397] 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 (which, for convenience, may be referred to herein as "software" or "software units"), or any combination of these technologies.

[0398] 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 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. Those skilled in the art can implement the described functions in various ways for each specific application, but the decision of such 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 here for a specific operation or function refers to a processor, device, component, circuit, structure, machine, unit, etc., which is physically constructed, programmed and / or arranged to perform a specific operation or function.

[0399] 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 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.

[0400] 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.

[0401] 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 will be apparent to one 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 embodiments of the present disclosure.

[0402] In addition, memory or other storage devices 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, functions illustrated as being performed by separate processing logic elements or controllers may be performed by the same processing logic elements or controllers. 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.

[0403] Various modifications to the embodiments described in this disclosure should 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 this disclosure. Therefore, this 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: Receiving, by a wireless communication terminal, one or more downlink (DL) signal transmission indication information from a wireless communication node, wherein the indication information indicates one or more transmission modes used for the one or more DL signal transmissions; and One or more DL signals are received by the wireless communication terminal from the wireless communication node according to the one or more modes for the one or more DL signal transmissions.

2. The wireless communication method according to claim 1, wherein: The indication information includes at least one of the following: an indication of availability or unavailability of one or more validity durations for the one or more DL signal transmissions; an indication of the availability or unavailability of one or more DL signal bursts; an alteration of the transmission of one or more DL signals; a configuration of the one or more DL signal transmissions; The value of the validity duration or invalidity duration; the starting position of the validity duration; for ignoring the one or more gaps in DL signal transmission; a periodicity or duration for the one or more DL signal transmissions; a starting offset of the validity duration or periodicity for the one or more DL signal transmissions; The number of available or unavailable DL signals; a set of resources for transmission of the one or more DL signals; a paging occasion PO offset for the one or more DL signal transmissions; a value of a system frame number SFN or a value of a paging frame PF index as a reference point for the effective time of the one or more DL signal transmissions; an index of a pattern among the one or more patterns for the one or more DL signal transmissions; deactivation or unavailability of one or more validity durations or periods for the one or more DL signal transmissions; an indication that the one or more DL signals are not transmitted; cessation or unavailability of at least one of the one or more DL signals; or A hybrid automatic repeat request acknowledgement HARQ-ACK feedback is used to receive the indication information.

3. The wireless communication method according to claim 2, wherein: The value of the PF index is not greater than a value of an extended discontinuous reception eDRX cycle or a default paging cycle that exceeds 10 milliseconds.

4. The wireless communication method according to any one of claims 1 to 3, wherein: The one or more DL signals include at least one of the following: Synchronization signal block SSB; Cell-defined CD SSB or non-cell-defined NCD SSB; SSBs available during the validity duration of the wireless communication terminal; Primary synchronization signal PSS or secondary synchronization signal SSS; Tracking reference signal TRS; Channel State Information Reference Signal CSI-RS; or Paging signal.

5. The wireless communication method according to any one of claims 1 to 4, wherein: The one or more DL signals are used for at least one of the following: synchronization, automatic gain control AGC adjustment, beam management, beam scanning, channel state information CSI measurement, radio link monitoring measurement, radio resource management RRM measurement or energy saving of wireless communication nodes.

6. The wireless communication method according to any one of claims 1 to 5, wherein: The one or more transmission modes include at least one of the following: Validity time or invalidity time; Duration of validity; The starting point or boundary of the validity duration; a modification period for the one or more DL signal transmissions; DL signal transmission opportunity; or Resource set.

7. The wireless communication method according to claim 6, wherein: The valid time or invalid time is determined based on at least one of the following: a starting point, an end position, a duration of the valid time or the invalid time, a discontinuous reception DRX cycle, an indication of the validity duration or the availability of an available DL signal, or an indication of the validity duration or the unavailability of an unavailable DL signal.

8. The wireless communication method according to claim 6 or 7, wherein: At least one of the starting point or the ending position is determined based on at least one of: a PF offset, a periodicity for the one or more DL signal transmissions, an eDRX cycle, a default paging cycle, a DRX cycle, or a modification period.

9. The wireless communication method according to any one of claims 6 to 8, wherein: The duration of the active time or inactive time is determined based on at least one of: a multiple of a periodicity or a validity duration for the one or more DL signal transmissions, or a certain number of consecutive symbols or time slots.

10. The wireless communication method according to any one of claims 6 to 9, wherein: The validity duration is the number of eDRX cycles, default paging cycles or DRX cycles.

11. The wireless communication method according to any one of claims 6 to 10, wherein: The starting position of the validity duration is determined based on at least one of the following: a position of the first PF during an eDRX cycle or a paging cycle, a predetermined system frame number SFN, or a delay after receiving the indication information.

12. The wireless communication method according to any one of claims 6 to 11, wherein: The boundary of the validity duration is determined based on at least one of: a gap or a position of receiving the indication information of the one or more DL signal transmissions.

13. The wireless communication method according to claim 12, wherein: The gap is a period before the wireless communication terminal receives the PF, PO, SFN, time slot or symbol indicating the transmission of the one or more DL signals, and the wireless communication terminal is not allowed to receive the one or more DL signals in the gap.

14. The wireless communication method according to any one of claims 6 to 13, wherein: The wireless communication terminal receives the configuration of the one or more DL signal transmissions in a first modification period, receives the indication information in a second modification period adjacent to the first modification period, and receives the one or more DL signals in a third modification period adjacent to the second modification period.

15. The wireless communication method according to any one of claims 6 to 14, wherein: The boundary of the modification period is determined based on at least one of a period value or an offset.

16. The wireless communication method according to any one of claims 6 to 15, wherein: The boundary of the DL signal transmission opportunity is determined based on the PO offset.

17. The wireless communication method according to any one of claims 6 to 16, wherein: The resource set includes at least one of the following: a first resource set for a basic mode, a second resource set for a normal mode, a third resource set for a mode configured by a system information block SIB, or a fourth resource set for a user equipment UE-specific mode.

18. The wireless communication method according to claim 17, wherein: At least one of the first resource set or the third resource set is determined based on at least one of: a validity duration, a start position of the validity duration, a number of available DL signals, a PO offset, or a modification period.

19. The wireless communication method according to claim 17 or 18, wherein: At least one of the first resource set or the third resource set is configured for a UE in an idle mode.

20. The wireless communication method according to any one of claims 17 to 19, wherein: At least one of the second resource set or the fourth resource set is determined based on at least one of: validity duration, a starting position of validity duration, a number of available DL signals, a PO offset, a modification period, a DRX cycle, a periodicity or a duration.

21. The wireless communication method according to any one of claims 17 to 20, wherein: At least one of the second resource set or the fourth resource set is configured for a UE in connected mode.

22. The wireless communication method according to any one of claims 1 to 21, wherein: The indication information is indicated by at least one of the following: cell-specific DCI, group-common DCI, UE-specific DCI, medium access control control element MAC CE, radio resource control RRC signaling or SIB.

23. The wireless communication method according to claim 22, wherein: The cell-specific DCI includes at least one of the following: an information block including indications for one or more DL signal transmissions for all UEs in one or more cells, or one or more cell groups; a bitmap field including one or more indications for one or more DL signal transmissions for all UEs in one or more cells, or one or more cell groups; or an indication field including indications for one or more DL signal transmissions for all UEs in a cell or a cell group.

24. The wireless communication method according to claim 23, wherein: The one or more cell groups support at least one of the following: the same eDRX parameter, the same default paging cycle or the same DRX cycle.

25. The wireless communication method according to any one of claims 22 to 24, wherein: The group common DCI includes at least one of the following: an information block configured for UEs in a UE group; an information block configured for a UE group; or a bitmap in which each bit is configured for one or more UE groups.

26. The wireless communication method according to claim 25, wherein: The UE group supports at least one of the following: having a valid PO in the same PF or having a valid PO in multiple consecutive PFs during an eDRX cycle or a default paging cycle.

27. The wireless communication method according to any one of claims 22 to 26, wherein: The group common DCI indicates the indication information in at least one of the following fields: time slot format indicator, available resource block RB set indicator or channel occupancy time COT duration indicator, search space set group switching flag, preemption indication, wake-up indication, secondary cell SCell sleep indication, paging indication or TRS availability indication.

28. The wireless communication method according to any one of claims 22 to 27, wherein: The UE-specific DCI includes at least one of the following: a bitmap indicating the availability of one or more validity durations or periodicity for the one or more DL signal transmissions, or an indication field indicating at least one of the following: a reference point, a starting SFN, a time slot, a symbol for validity duration or DL ​​signal transmission.

29. The wireless communication method according to any one of claims 22 to 28, wherein: The UE-specific DCI indicates the indication information in at least one of the following fields: frequency domain resource allocation, time domain resource allocation, modulation and coding scheme, new data indicator, redundancy version, HARQ process number, uplink or supplementary uplink UL / SUL indicator, HARQ-ACK bitmap, indicator for all remaining bits of the configured grant downlink feedback information CG-DFI, redundancy version, random access preamble index, synchronization signal / physical broadcast channel SS / PBCH index, physical random access channel PRACH mask index, reserved bit, downlink allocation index, physical uplink control channel PUCCH resource indicator, short message field, TRS availability indication, physical downlink shared channel PDSCH group index, HARQ-ACK retransmission indicator or SCell sleep indication.

30. The wireless communication method according to any one of claims 22 to 29, wherein: The RRC signaling includes at least one of the following: one or more DL signal transmission parameters configured for a cell or a cell group, or one or more DL signal transmission parameters configured for a UE or a UE group.

31. The wireless communication method according to any one of claims 22 to 30, wherein: The SIB includes at least one of the following: an index of one of the one or more DL signals; availability of one or more validity durations of the one or more DL signal transmissions; availability of at least one of the one or more DL signals; Parameters associated with DL signal transmission opportunities; the number of RBs or Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the one or more DL signals; a periodicity or duration for the one or more DL signal transmissions; a starting offset of a validity duration or periodicity for the one or more DL signal transmissions; a starting position or reference point for validity duration or for one or more DL signals; an indication of whether the one or more DL signal transmissions are configured, started or stopped; an indication of whether the one or more DL signal transmissions are valid; or An indication indicating whether another signal transmission is deactivated.

32. The wireless communication method according to any one of claims 1 to 31, wherein: In response to the wireless communication terminal receiving the configuration of the one or more DL signal transmissions, and the wireless communication terminal not receiving indication information associated with the one or more DL signal transmissions in the predefined resources, the wireless communication terminal performs at least one of the following: performing operations related to unavailability of the one or more DL signal transmissions during a specific resource period; performing operations related to the one or more DL signal transmissions being available during a specific resource period; or Based on higher layer parameters, operations related to availability or unavailability of the one or more DL signal transmissions during specific resources are performed.

33. The wireless communication method according to any one of claims 1 to 32, wherein: In response to the wireless communication terminal receiving the configuration of the one or more DL signal transmissions, and the wireless communication terminal not receiving any message associated with the one or more DL signal transmissions during the modification period, the wireless communication terminal performs at least one of the following: Keep acquiring SIB information during the next continuous modification period; or performing operations related to availability of the one or more DL signal transmissions during a specific resource period; or Stop acquiring SIB information, and perform operations related to the one or more DL signal transmission being unavailable.

34. The wireless communication method according to any one of claims 1 to 33, wherein: In response to the wireless communication terminal being configured with a change of the one or more DL signal transmissions, and during a modification period after receiving another modification period of the system information of the change or DL ​​signal transmission configuration, the wireless communication terminal does not receive information associated with the one or more DL signal transmissions from the acquired SIB, the wireless communication terminal performs at least one of the following: Keep acquiring SIB information during the next continuous modification period; or Stop acquiring SIB information, and perform operations related to the one or more DL signal transmission being unavailable.

35. The wireless communication method according to any one of claims 1 to 34, wherein: In response to the wireless communication terminal being configured with the one or more DL signal transmissions, the wireless communication terminal does not receive any DL signal during an effective time for the one or more DL signal transmissions, the wireless communication terminal performs at least one of the following: Configuration of using the last transmission or measurement of another DL signal in PDCCH or PDSCH reception; using a default mode or a default configuration for the one or more DL signal transmissions; or One or more DL signals are received during one or more additional validity durations or periods or modification periods.

36. The wireless communication method according to any one of claims 1 to 35, wherein: Priorities for the one or more DL signal transmissions are configured for conflicts between the one or more DL signal transmissions and other signals or channels.

37. The wireless communication method according to any one of claims 1 to 36, wherein: The wireless communication terminal supports at least one of the following: the one or more DL signal transmissions, a request or feedback for DL ​​signal transmission configuration, and an SCell without SSB for inter-band carrier aggregation CA.

38. The wireless communication method according to claims 1 to 3, wherein: The DL signal includes a cell-defined SSB CD-SSB and a non-cell-defined SSB NCD-SSB, and the transmission mode includes an offset between CD-SSB and NCD-SSB.

39. The wireless communication method according to claim 38, wherein: The offset includes at least one of the following: {sf30, sf40, sf60, sf80, sf120}, or {1 / 4, 1 / 2, 3 / 4}, or {sf30, sf40, sf60, sf80, sf120, 1 / 4, 1 / 2, 3 / 4}.

40. The wireless communication method according to claim 38, wherein: The offset includes: {sf5, sf10, sf15, sf30, sf40, sf60, sf80, sf120}, {sf5, sf10, sf15, sf30, sf60, spare3, spare2, spare1}, {sf5, sf10, sf15, sf30, sf60, sf120, spare2, spare1}, {sf5, sf10, sf15, 1 / 4, 1 / 2, 3 / 4, spare2, spare1}, or {sf5, sf10, sf15, 1 / 2, 3 / 4, spare3, spare2, spare1}.

41. A wireless communication method, comprising: The wireless communication node sends one or more downlink (DL) signal transmission indication information to the wireless communication terminal, wherein the indication information indicates one or more transmission modes used for the one or more DL signal transmissions; and One or more DL signals are sent by the wireless communication node to the wireless communication terminal according to the one or more modes for transmission of the one or more DL signals.

42. The wireless communication method according to claim 41, wherein: The indication information includes at least one of the following: an indication of availability or unavailability of one or more validity durations for the one or more DL signal transmissions; an indication of the availability or unavailability of one or more DL signal bursts; an alteration of the transmission of one or more DL signals; a configuration of the one or more DL signal transmissions; The value of the validity duration or invalidity duration; the starting position of the validity duration; for ignoring the one or more gaps in DL signal transmission; a periodicity or duration for the one or more DL signal transmissions; a starting offset of the validity duration or periodicity for the one or more DL signal transmissions; The number of available or unavailable DL signals; a set of resources for transmission of the one or more DL signals; a paging occasion PO offset for the one or more DL signal transmissions; a value of a system frame number SFN or a value of a paging frame PF index as a reference point for the effective time of the one or more DL signal transmissions; an index of a pattern among the one or more patterns for the one or more DL signal transmissions; deactivation or unavailability of one or more validity durations or periods for the one or more DL signal transmissions; an indication that the one or more DL signals are not transmitted; cessation or unavailability of at least one of the one or more DL signals; or A hybrid automatic repeat request acknowledgement HARQ-ACK feedback is used to receive the indication information.

43. The wireless communication method according to claim 42, wherein: The value of the PF index is not greater than a value of an extended discontinuous reception eDRX cycle or a default paging cycle that exceeds 10 milliseconds.

44. The wireless communication method according to any one of claims 41 to 43, wherein: The one or more DL signals include at least one of the following: Synchronization signal block SSB; Cell-defined CD SSB or non-cell-defined NCD SSB; SSBs available during the validity duration of the wireless communication terminal; Primary synchronization signal PSS or secondary synchronization signal SSS; Tracking reference signal TRS; Channel State Information Reference Signal CSI-RS; or Paging signal.

45. The wireless communication method according to any one of claims 41 to 44, wherein: The one or more DL signals are used for at least one of the following: synchronization, automatic gain control AGC adjustment, beam management, beam scanning, channel state information CSI measurement, radio link monitoring measurement, radio resource management RRM measurement or energy saving of wireless communication nodes.

46. ​​The wireless communication method according to any one of claims 41 to 45, wherein: The one or more transmission modes include at least one of the following: Validity time or invalidity time; Duration of validity; The starting point or boundary of the validity duration; a modification period for the one or more DL signal transmissions; DL signal transmission opportunity; or Resource set.

47. The wireless communication method according to claim 46, wherein: The valid time or invalid time is determined based on at least one of the following: a starting point, an end position, a duration of the valid time or the invalid time, a discontinuous reception DRX cycle, an indication of the validity duration or the availability of an available DL signal, or an indication of the validity duration or the unavailability of an unavailable DL signal.

48. The wireless communication method according to claim 46 or 47, wherein: At least one of the starting point or the ending position is determined based on at least one of: a PF offset, a periodicity for the one or more DL signal transmissions, an eDRX cycle, a default paging cycle, a DRX cycle, or a modification period.

49. The wireless communication method according to any one of claims 46 to 48, wherein: The duration of the valid time or the invalid time is determined based on at least one of the following: a periodicity of the one or more DL signal transmissions or a multiple of a validity duration, or a certain number of consecutive symbols or time slots.

50. The wireless communication method according to any one of claims 46 to 49, wherein: The validity duration is the number of eDRX cycles, default paging cycles or DRX cycles.

51. The wireless communication method according to any one of claims 46 to 50, wherein: The starting position of the validity duration is determined based on at least one of the following: a position of the first PF during an eDRX cycle or a paging cycle, a predetermined system frame number SFN, or a delay after receiving the indication information.

52. The wireless communication method according to any one of claims 46 to 51, wherein: The boundary of the validity duration is determined based on at least one of: a gap or a position of receiving the indication information of the one or more DL signal transmissions.

53. The wireless communication method according to claim 52, wherein: The gap is a period before the wireless communication terminal receives the PF, PO, SFN, time slot or symbol indicating the transmission of the one or more DL signals, and the wireless communication terminal is not allowed to receive the one or more DL signals in the gap.

54. The wireless communication method according to any one of claims 46 to 53, wherein: The wireless communication node sends the configuration of the one or more DL signal transmissions to the wireless communication terminal in a first modification period, sends the indication information in a second modification period adjacent to the first modification period, and receives the one or more DL signals in a third modification period adjacent to the sending modification period.

55. The wireless communication method according to any one of claims 46 to 54, wherein: The boundary of the modification period is determined based on at least one of a period value or an offset.

56. The wireless communication method according to any one of claims 46 to 55, wherein: The boundary of the DL signal transmission opportunity is determined based on the PO offset.

57. The wireless communication method according to any one of claims 46 to 56, wherein: The resource set includes at least one of the following: a first resource set for a basic mode, a second resource set for a normal mode, a third resource set for a mode configured by a system information block SIB, or a fourth resource set for a UE-specific mode.

58. The wireless communication method according to claim 57, wherein: At least one of the first resource set or the third resource set is determined based on at least one of: a validity duration, a start position of the validity duration, a number of available DL signals, a PO offset, or a modification period.

59. The wireless communication method according to claim 57 or 58, wherein: At least one of the first resource set or the third resource set is configured for a UE in an idle mode.

60. The wireless communication method according to any one of claims 57 to 59, wherein: At least one of the second resource set or the fourth resource set is determined based on at least one of: validity duration, a starting position of validity duration, a number of available DL signals, a PO offset, a modification period, a DRX cycle, a periodicity or a duration.

61. The wireless communication method according to any one of claims 57 to 60, wherein: At least one of the second resource set or the fourth resource set is configured for a UE in connected mode.

62. The wireless communication method according to any one of claims 41 to 61, wherein: The indication information is indicated by at least one of the following: cell-specific DCI, group-common DCI, UE-specific DCI, medium access control control element MAC CE, radio resource control RRC signaling or SIB.

63. The wireless communication method according to claim 62, wherein: The cell-specific DCI includes at least one of the following: an information block including indications of one or more DL signal transmissions for all UEs in one or more cells, or one or more cell groups; a bitmap field including one or more indications for one or more DL signal transmissions for all UEs in one or more cells, or one or more cell groups; or an indication field including indications for one or more DL signal transmissions for all UEs in a cell or a cell group.

64. The wireless communication method according to claim 63, wherein: The one or more cell groups support at least one of the following: the same eDRX parameter, the same default paging cycle or the same DRX cycle.

65. The wireless communication method according to any one of claims 62 to 64, wherein: The group common DCI includes at least one of the following: an information block configured for UEs in a UE group; an information block configured for a UE group; or a bitmap in which each bit is configured for one or more UE groups.

66. The wireless communication method according to claim 65, wherein: The UE group supports at least one of the following: having a valid PO in the same PF or having a valid PO in multiple consecutive PFs during an eDRX cycle or a default paging cycle.

67. The wireless communication method according to any one of claims 62 to 66, wherein: The group common DCI indicates the indication information in at least one of the following fields: time slot format indicator, available resource block RB set indicator or channel occupancy time COT duration indicator, search space set group switching flag, preemption indication, wake-up indication, secondary cell SCell sleep indication, paging indication or TRS availability indication.

68. The wireless communication method according to any one of claims 62 to 67, wherein: The UE-specific DCI includes at least one of the following: a bitmap indicating the availability of one or more validity durations or periodicity for the one or more DL signal transmissions, or an indication field indicating at least one of the following: a reference point, a starting SFN, a time slot, a symbol for validity duration or DL ​​signal transmission.

69. The wireless communication method according to any one of claims 62 to 68, wherein: The UE-specific DCI indicates the indication information in at least one of the following fields: frequency domain resource allocation, time domain resource allocation, modulation and coding scheme, new data indicator, redundancy version, HARQ process number, uplink or supplementary uplink UL / SUL indicator, HARQ-ACK bitmap, indicator for all remaining bits of the configured grant downlink feedback information CG-DFI, redundancy version, random access preamble index, synchronization signal / physical broadcast channel SS / PBCH index, physical random access channel PRACH mask index, reserved bit, downlink allocation index, physical uplink control channel PUCCH resource indicator, short message field, TRS availability indication, physical downlink shared channel PDSCH group index, HARQ-ACK retransmission indicator or SCell sleep indication.

70. The wireless communication method according to any one of claims 62 to 69, wherein: The RRC signaling includes at least one of the following: one or more DL signal transmission parameters configured for a cell or a cell group, or one or more DL signal transmission parameters configured for a UE or a UE group.

71. A wireless communication method according to any one of claims 62 to 70, wherein: The SIB includes at least one of the following: an index of one of the one or more DL signals; availability of one or more validity durations of the one or more DL signal transmissions; availability of at least one of the one or more DL signals; Parameters associated with DL signal transmission opportunities; the number of RBs or Orthogonal Frequency Division Multiplexing (OFDM) symbols occupied by the one or more DL signals; a periodicity or duration for the one or more DL signal transmissions; a starting offset of a validity duration or periodicity for the one or more DL signal transmissions; a starting position or reference point for validity duration or for one or more DL signals; an indication of whether the one or more DL signal transmissions are configured, started or stopped; an indication of whether the one or more DL signal transmissions are valid; or An indication indicating whether another signal transmission is deactivated.

72. The wireless communication method according to any one of claims 41 to 71, wherein: Priorities for the one or more DL signal transmissions are configured for conflicts between the one or more DL signal transmissions and other signals or channels.

73. The wireless communication method according to any one of claims 41 to 72, wherein: The wireless communication terminal supports at least one of the following: the one or more DL signal transmissions, a request or feedback for DL ​​signal transmission configuration, and an SCell without SSB for inter-band carrier aggregation CA.

74. The wireless communication method according to claims 41 to 43, wherein: The DL signal includes a cell-defined SSB CD-SSB and a non-cell-defined SSB NCD-SSB, and the transmission mode includes an offset between CD-SSB and NCD-SSB.

75. The wireless communication method according to claim 74, wherein: The offset includes at least one of the following: {sf30, sf40, sf60, sf80, sf120}, or {1 / 4, 1 / 2, 3 / 4}, or {sf30, sf40, sf60, sf80, sf120, 1 / 4, 1 / 2, 3 / 4}.

76. The wireless communication method according to claim 74, wherein: The offset includes: {sf5, sf10, sf15, sf30, sf40, sf60, sf80, sf120}, {sf5, sf10, sf15, sf30, sf60, spare3, spare2, spare1}, {sf5, sf10, sf15, sf30, sf60, sf120, spare2, spare1}, {sf5, sf10, sf15, 1 / 4, 1 / 2, 3 / 4, spare2, spare1}, or {sf5, sf10, sf15, 1 / 2, 3 / 4, spare3, spare2, spare1}.

77. A wireless communication terminal, comprising: Communication unit; and A processor, wherein the processor is configured to: receive indication information of one or more downlink (DL) signal transmissions from a wireless communication node, wherein the indication information indicates one or more transmission modes used for the one or more DL signal transmissions; and receive one or more DL signals from the wireless communication node according to the one or more modes used for the one or more DL signal transmissions.

78. The wireless communication terminal according to claim 77, wherein: The processor is further configured to perform the wireless communication method according to any one of claims 2 to 40.

79. A wireless communication node, comprising: Communication unit; and A processor, wherein the processor is configured to: send one or more downlink (DL) signal transmission indication information to a wireless communication terminal, wherein the indication information indicates one or more transmission modes used for the one or more DL signal transmissions; and send one or more DL signals to the wireless communication terminal according to the one or more modes used for the one or more DL signal transmissions.

80. The wireless communication node of claim 79, wherein: The processor is further configured to perform the wireless communication method according to claims 42 to 76.

81. 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 76.

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