Signal configuration, wireless communication method, apparatus, and compute-readable storage medium
By determining and performing wireless communication functions based on low power signal configurations, the method addresses the challenge of reducing power consumption and improving battery life in user equipment, ensuring efficient and reliable wireless communication.
Patent Information
- Application Number
- PCT/CN2023/110142
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-07-31
- Publication Date
- 2025-02-06
AI Technical Summary
Existing wireless communication technologies face challenges in efficiently configuring low power signals to reduce power consumption and improve battery life in user equipment (UE) while maintaining effective wireless communication functions.
The method involves determining and performing wireless communication functions based on low power signal configurations, which can include signaling via a low power signal, configuration from a second communication node, or pre-configuration, allowing for efficient power management and communication operations.
This approach reduces power consumption and enhances battery life by optimizing low power signal configurations for wireless communication, while ensuring reliable communication functions are maintained.
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Figure CN2023110142_06022025_PF_FP_ABST
Abstract
Description
SIGNAL CONFIGURATION, WIRELESS COMMUNICATION METHOD, APPARATUS, AND COMPUTE-READABLE STORAGE MEDIUMTECHNICAL FIELD
[0001] This disclosure is generally related to wireless communication, and more particularly to configuration of low power signals and related operations.BACKGROUND
[0002] Wireless communication technologies are pivotal components of the increasingly interconnecting global communication networks. Wireless communications rely on allocated time and frequency resources for transmitting and receiving wireless channels or signals. A paging signal can be sent over the PDCCH or physical downlink shared channel (PDSCH) that “wakes up” user equipment (UE) from an idle / inactive state so that the UE can prepare to receive data or channels or signals that were first introduced. A wake-up signal (WUS) features is disclosed to reduces power consumption and improves battery life.SUMMARY
[0003] This summary is a brief description of certain aspects of this disclosure. It is not intended to limit the scope of this disclosure.
[0004] According to some embodiments of this disclosure, a wireless communication method is provided. The method includes determining, by a first communication node, one or more low power signal configurations; and performing one or more wireless communication functions according to the one or more low power signal configurations, wherein the one or more low power signal configurations comprise at least one of a signalling or configuration via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration or pre-signalling.
[0005] According to some embodiments of this disclosure, a wireless communication method is provided. The method includes transmitting, by a second communication node, one or more low power signal configurations; and determining one or more wireless communication functions according to the one or more low power signal configurations, wherein the one or more low power signal configurations comprise at least one of a signalling or configuration via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration or pre-signalling.
[0006] Still another embodiment of this disclosure provides a wireless communication apparatus, including a memory storing one or more programs and at least one processor electrically coupled to the memory and configured to execute the one or more programs to perform any method or step or their combination in this disclosure.
[0007] Still another embodiment of this disclosure provides non-transitory computer-readable storage medium, storing one or more programs, the one or more programs being configured to, when performed by at least one processor, cause to perform any method or step or their combination in this disclosure.
[0008] According to some embodiments of this disclosure, one or more wireless communication methods are further disclosed, the methods include combinations of certain methods, aspects, elements, and steps (either in a generic view or specific view) disclosed in the various embodiments of this disclosure.
[0009] The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Various exemplary embodiments of the present disclosure are described in detail below with reference to the following drawings. The drawings are provided for the purposes of illustration only and merely depict exemplary embodiments of the present disclosure to facilitate the understanding of the present disclosure. Therefore, the drawings should not be considered as limiting of the breadth, scope, or applicability of the present disclosure. It should be noted that for clarity and ease of illustration these drawings are not necessarily drawn to scale.
[0011] Fig. 1A shows wireless communication signals between a base station (BS) and user equipment (UE) with a low power signal.
[0012] Fig. 1B shows wireless communication signals between a BS and UE where no PDCCH is received within a time duration.
[0013] Fig. 2 shows wireless communication signals between a BS and UE where the UE decodes the low power signal as received.
[0014] Fig. 3 shows exemplary payloads and corresponding repetitions.
[0015] Fig. 4 shows exemplary payloads with different numbers of repetitions.
[0016] Fig. 5 shows an exemplary payload with five candidates.
[0017] Fig. 6 shows exemplary payloads with different numbers of candidates.
[0018] Fig. 7 shows different locations to be decoded for different UEs.
[0019] Fig. 8 shows a sequence of a low power signal occupying transmission resource.
[0020] Fig. 9 shows fallback transmission when UE does not receive a low power signal.
[0021] Fig. 10 shows extending PDSCH configured by a low power signal after it’s prior configuration.
[0022] Fig. 11 shows a wireless communication system structure.DETAILED DESCRIPTION
[0023] Configuration Related to LP-WUS Monitoring
[0024] According to some embodiments, a wireless communication method is disclosed. The method includes determining, by a first communication node, one or more low power signal configurations; and performing one or more wireless communication functions according to the one or more low power signal configurations, wherein the one or more low power signal configurations comprise at least one of a signalling or configuration via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration. Corresponding another method is disclosed. The wireless communication method includes transmitting, by a second communication node, one or more low power signal configurations; and determining one or more wireless communication functions according to the one or more low power signal configurations, wherein the one or more low power signal configurations comprise at least one of a signalling via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration.
[0025] In some examples, the first communications node includes user equipment (UE) , a device, a repeater, a base station (BS) , a gNB, a relay, or a TRP. The second communications node includes a BS, a gNB, a replay, a repeater, UE, or a device.
[0026] In some examples, a low power signal includes a LP-WUS, a LP-SS, an PSS, an SSS, DMRS or sequences.
[0027] Fig. 1A shows a wireless communication flow chart according to some embodiments of this disclosure. User equipment (UE) may determine configurations for wireless communication, such as low power signal configurations, or LP-WUS (low power wake up signal) configurations provided and transmitted by a base station (BS) . Alternatively or additionally, the configurations can be preset in the UE without or with further configurations from the BS. The one or more low power signal configurations include at least one of a signalling or configuration via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration. Accordingly, wireless communication functions of the BS and the UE can be performed according to the configurations of the UE and according to the configurations of the BS. In this example, the LP-WUS can configure the UE to determine when, how, and / or where to monitor an LP-WUS. Accordingly, the UE can properly receive the LP-WUS signal, if the BS sends one to the UE. Once the UE is woken up by the LP-WUS signal, the UE can enter another mode to monitor other kinds of channels or signals, such as a PDCCH (Physical Downlink Control Channel) , SSB, PDSCH, etc. Accordingly, the UE can properly receive the signals. The low power signals may be based on OOK (On-Off Keying) modulation, FSK (Frequency-shift keying) modulation, or OFDM (Orthogonal frequency-division multiplexing) . The low power signals may include CRS (Cell-Specific Reference Signal) bits or sequences.
[0028] According to some examples, the one or more low power signal configurations include at least one of: one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, a coefficient or constant or reference point configurations.
[0029] In some examples, the one or more low power signal configurations also include at least one of a hopping configuration or a gap configuration. For example, when hopping is configured, UE may receive LP-WUS in a different frequency location. For example, when a gap is inserted, between two hops, there is a gap. For example, when hopping and repetitions are configured, a first repetition is located in a first frequency, and a second repetition is located in a second frequency.
[0030] Specifically in some examples, the one or more duration configurations can indicate at least one of a time duration for monitoring low power signal, processing a physical channel or signal, monitoring PDCCH (Physical Downlink Control Channel) , skipping PDSCH, skipping SPS (Semi-Persistent Scheduling) PDSCH (Physical Downlink Shared Channel) , or skipping CG-PUSCH (Physical Uplink Shared Channel) . Additionally or alternatively, the one or more offset configurations indicate an offset based on a DRX or subframe or SFN or symbol or H-SFN or time units. Additionally or alternatively, the one or more repetition configurations indicate a repetition number. The repetition number comprises at least one of {1, 2, 4, 8, 16, 32, 64, 128} . Additionally or alternatively, the one or more resource aggregation unit configurations indicate a number of at least one of symbols or PRBs or continuous PRBs or continuous symbols. Additionally or alternatively, the monitoring occasion configurations indicate monitoring occasion in at least one slot, symbol, subframe, SFN, or time unit. Additionally or alternatively, the candidate configurations indicates a number of candidates {1, 2, 4, 8} , time domain and / or frequency domain resources for candidates, domain and / or frequency domain locations for candidates, or different time domain and / or frequency locations for different candidates.
[0031] According to some examples, a pattern may indicate where to monitors LP-WUS in some downlink (DL) slots or symbols. For example, one or more pattern configurations indicate one or more downlink slots or symbols to be monitored for low power signals. The benefits of the pattern configuration include the compatibility for a time domain duplex (TDD) mode. The number of patterns may be no more than a value, for example, 1, 2, or 4. The pattern may indicate or be used to determine whether UE monitors LP-WUS in some DL slots or symbols; alternatively or additionally, the pattern can be defined based on slots. Alternatively or additionally, the pattern may include a period. Alternatively or additionally, the pattern configuration may include bitmap bits, for example, bitmap or bit string indication. The bitmap may indicate or be used to determine whether UE monitors LP-WUS in some DL slots or symbols according to the bitmap indication during a period. For example, the pattern could be interpreted based on duplex methods, such as frequency domain duplex (FDD) or TDD. For FDD, the pattern can be defined based on at least one of: subframes, slots, and / or SFNs (Single Frequency Network) . For TDD, the pattern can be defined based on at least one of subframes, slots, and / or symbols. The period of the pattern for TDD can be aligned with the dl-UL-TransmissionPeriodicity, for example, to be one or more times of TDD dl-UL-TransmissionPeriodicity, or alternatively, to be one or more times of TDD dl-UL-TransmissionPeriodicity for pattern 1 and pattern 2. For FDD, no such alignment is required.
[0032] In some examples, time units may include milliseconds, microseconds, slots, subframes, SFNs (Single Frequency Network) , symbols, H-SFN (Hierarchical Single Frequency Network) .
[0033] In addition, the gNB (BS) can configure the low power signal with a bitmap string or bits. The bitmap string could be of 14 bits. The bitmap string could be configured under the manner that 1 bit corresponds to 1 slot, one frame, one subframe, or any other time units.
[0034] The time duration or time window are associated with low power signals, such as a LP-WUS, LP-SS (low power sync signal) . For example, the configuration may include a time duration for the UE to perform different tasks. The configuration may include a time window for UE to perform certain functions. For example, at least one of {1, 2, 4, 8, 16, 32, 64, 5, 10, 20, 40, 80, 160, 320, or 640} time units can form a time duration or a time window for monitoring or transmission or reception of low power signals. For example, the time duration or time window can be one or more times of N × 2M, where N>=1 and M>=0, M, N are integer. For example, the configuration may include an offset from a specific reference time point to a later time point, when the UE may start to perform certain functions, such as LP-WUS monitoring. The offset can be defined according to a reference time point and / or a time gap. For example, the reference time point or offset depends on DRX (Discontinuous Reception) , subframes, SFN, symbol, H-SFN. The offset is no more than a time duration, e.g., (0, 1, 2 ..., X-1) , where X is the time duration length.
[0035] For example, the configuration may include a period associated with low power signals. The period could be at least one of {1, 2, 4, 8, 16, 32, 64, 5, 10, 20, 40, 80, 160, 320, or 640} time units. Each of the time units may include milliseconds, microseconds, slots, subframes, SFNs (Single Frequency Network) , symbols, H-SFN (Hierarchical Single Frequency Network) . For example, the period could be equal or larger than the time duration. If the period is equal to the time duration, UE may keep always-on monitoring. If the period is larger than the time duration, UE may keep duty-cycle monitoring.
[0036] According to some examples, the configurations of the UE may further include a monitoring time duration for the first communication node to monitor PDCCH after being triggered by a low power signal. Alternatively or additionally, the configurations may further include an offset time information indicating an offset associated with a monitoring time duration for low power signals. Alternatively or additionally, the configurations may further include a timer or active timer or inactive timer configuration. For example, the monitoring time duration starts based on or starts from at least one of a PDCCH occasion, a PDCCH candidate, SPS occasion, or CG-occasion after the lower power signal. For example, SPS occasion may include a PDSCH occasion or a PDCCH occasion for SPS. A CG-occasion may include a PUSCH occasion or a PDCCH occasion for CG-PUSCH transmission. Alternatively or additionally, the monitoring time duration starts based on at least one of a slot, a symbol, a candidate after the lower power signal. For example, the candidate may include a PDCCH candidate and / or an LP-WUS candidate. Alternatively or additionally, the monitoring time duration starts based on an offset; the monitoring time duration starts based on or starts from an SRS, a CSI-RS, or a PT-RS or a reference point; the monitoring time duration starts based on a DRX or based on the starting of a DRX; and / or the monitoring time duration starts based on a timer. In some examples, the monitoring time duration is the same with or is based on a time duration for DRX. Alternatively or additional, the offset is the same with or is based on an offset for DRX; Alternatively or additional, the timer or active timer or inactive timer configuration is the same with or is based on an active or inactive timer for DRX. Additionally, the monitoring time duration can be configured or signalled via a low power signal, an RRC signaling, downlink control information (DCI) , or a MAC CE.
[0037] According to some examples, the one or more pattern configurations comprise at least one or more time duration configurations, offset configurations, period configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, hopping, gap or reference point configurations. Alternatively or additionally, the one or more format configurations comprise at least one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, hopping, gap or reference point configurations. Alternatively or additionally, the one or more monitoring space configurations comprise at least one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring occasion configurations, hopping, gap or reference point configurations. Alternatively or additionally, the one or more reference point configurations comprise information of at least one of a reference time point, a reference frequency point, or a time and frequency point.
[0038] According to some examples, a corresponding repetition or candidates or a number is configured for a payload size, a format, a pattern, a monitoring space, or a monitoring occasion. For example, a payload size, format, pattern, monitoring space, or monitoring occasion can be configured with associated repetition or candidates or a number. For example, a payload size may correspond to a format as discussed in this disclosure. For example, a first payload size corresponds to a first format, and a second payload size corresponds to another second format. Alternatively or additionally, a payload size corresponds to at least one of a repetition or a candidate. A payload size may also correspond to different repetitions, and a payload size may correspond to different candidates. Below shows a pseudo structure of the corresponding settings, as an example, where n0 indicates this corresponding payload size is not configured, and n1 and other values n indicates this payload size repeat n1 times or has n1 candidates.
[0039] Exemplarily, the one or more payload size configurations indicate a same payload size associated with low power signals for at least two UEs, and the payload sizes for the two UEs have different numbers of repetitions. For example, as shown in Fig. 2, once UE receive a LP-WUS, the UE may need to decode or blind decode the payload size of the LP-WUS, with configured repetitions according to the LP-WUS configuration. The following case implement an example, where payload size 1 correspond to n4=4 and payload size 2 corresponds to n4=2, as shown in Fig. 3. When UE decodes the LP-WUS for a payload size, the starting position for a payload size can be determined according to configurations, which may be configured by a BS or pre-configured. Additionally, for different payload sizes, the starting position may be different or the same; for different payload sizes, the granularity for decoding a candidate is the same or different; additionally, between different repetitions in a payload, a gap or no gap can be inserted.
[0040] Additionally or alternatively, payload sizes may correspond to repetitions. The occupied resources in time domain and / or frequency domain for one repetition or candidate is the same for a payload size. The occupied resources in time domain and / or frequency domain for one candidate or repetition for different payload sizes can be different. As shown in Fig. 4, the payload size 1 has four repetitions, while the payload size 2 has only two repetitions. Additionally or alternatively, between different repetitions in a payload, a gap or no gap can be inserted.
[0041] Exemplarily, the one or more payload size configurations are associated with one or more characteristics other than payload sizes, and the one or more characteristics include a candidate. In this case, UE may need to decode or blind decode the payload size with configured candidates according to the configuration, which can be configured by a BS. For example, as shown in Fig. 5, the payload is configured with five candidates. As examples, different candidates may occupy at least some different resources in a time domain and / or in frequency domain. These candidates may overlap with each other, or has no overlap with each other. Additionally, different payload sizes may have different number of candidates as configured; the decoding position for one candidate can be determined by at least one of a monitoring space configuration, a payload size of the signal, a number of candidates in the signal, and an index of a candidate. Additionally or alternatively, for different UEs or different groups of UEs or different RNTI (Radio Network Temporary Identifier) values, and / or for other configured parameters, candidate positions may be different. Accordingly, different UEs or UE groups could share the occasion, but decode its own LP-WUS in different candidates.
[0042] The payload size arrangement disclosed above can be applicable to arrangements for the settings of format and resource aggregation unit. According to some examples, the one or more format configurations are associated with one or more characteristics other than formats. According to some examples, the one or more resource aggregation unit configurations indicate different resource aggregation units associated with different candidates or repetitions, or both for at least two UEs. In these examples, different resource aggregation units could be configured, and different aggregation resource units with different candidates and / or repetitions can be configured. Here, resource units can be defined based on at least one of the following factors, including time-domain resource and / or frequency resources. The resources can be defined based on subcarriers, and / or PRBs (Physical Resource Block) , and / or symbols, and / or slots. According to some examples, the one or more resource aggregation unit configurations indicate resource aggregation units by M OFDM symbols and N subcarriers, or M OFDM symbols and N PRBs, or M slots and N PRBs, or M OFDM symbols, or M OFDM symbols and N slots, or N slots, wherein M and N are integers. Below shows a pseudo structure of the corresponding settings, as an example, where n0 indicates this corresponding resource unit is not configured and n1 and other values n indicates this resource unit repeat n1 times or has n1 candidates.
[0043] Exemplarily, UE performs one or more wireless communication functions according to the one or more candidate configurations. The wireless communication functions may include at least one of: determining a formula or a predefined rule for monitoring a candidate. For example, the candidate decoding is based on the formula or predefined rule; The wireless communication functions may include determining a starting position for monitoring a candidate. For example, when UE decodes a candidate, the starting position is determined. The wireless communication functions may include determining the step size or granularity for monitoring a candidate. For example, the step size or granularity is based on resource aggregation unit, is based on the gNb configuration. The wireless communication functions may include determining a cell ID or ID information for monitoring a candidate. In some examples, the ID information is configured by gNB or pre-configured. The wireless communication functions may include determining a common monitoring space or group specific or UE specific monitoring space for monitoring a candidate. For example, for a common monitoring space, group specific monitoring space, or UE specific monitoring space, candidates are defined, including the number of candidates, the position of candidates. The wireless communication functions may include determining the monitoring occasion configurations, aggregation unit configurations, monitoring space configurations, repetition configurations, payload size configurations, format configurations, or resource aggregation unit configurations. For example, when UE decodes or monitors the candidates, the monitoring occasion configurations, aggregation unit configurations, monitoring space configurations, repetition configurations, payload size configurations, format configurations, or resource aggregation unit configurations are determined.
[0044] Other Configurations
[0045] According to some examples, the one or more low power signal configurations indicate at least one of a common configuration, a UE specific configuration, or a UE group specific configuration. Additionally or alternatively, the common configuration may include information of at least one of an SI change notification, an ETWS / CMAS, a Cell-ID or cell specific wake-up. Additionally or alternatively, different common configurations may include different information. Additionally or alternatively, the common configuration is applied for sync or RRM (Radio Resource Management) measurement or wake-up. Additionally or alternatively, the common configuration can be carried via sequences or preambles. Additionally or alternatively, the common configuration can be applied for the first communication nodes in a cell. Additionally or alternatively, the common configuration comprise the first common configuration, and / or the second common configuration. The common configurations may include a first common configuration, a second common configuration, a third, and / or a forth and so on. In some example, a first common configuration can used for the first low power signal, and a second common configuration can be used for the second low power signal. The low power signal may include an SSB, a PSS, an SSS, a sequence, a CSI-RS, a DRMS, and / or a LP-WUS. The number of monitoring space for the low power signals may be limited, for example, no more than a value X, e.g. 4, 5. Additionally, different payload sizes may have different configuration with this regard.
[0046] On the frequency configurations for low power signals, a maximum PRB number of frequency bandwidth may be no more than 106 PRBs (Physical Resource Block) . For example, the frequency bandwidth for the transmission of the low power signal may be {11, 24, 25, 51, 52, 38, 79, or 106} PRBs. The number frequency bandwidth configurations for the low power signals may be limited, e.g., no more than 4.
[0047] According to some examples, the UE specific configuration includes at least one of wake-up information, ID information, Cell or SCell wake-up information, a stop PDCCH monitoring indication, a time duration, a time offset, or an application delay. Additionally or alternatively, different first communication nodes have different ID information. For example, a first communication node has a first ID, and a second communication node can have a second ID. The UE specific configuration is applied for one or more the first communication nodes with the same ID. Additionally or alternatively, the UE specific configuration is applied for one or more cells. For example, it can be applied in a PCell and SCells. In some examples, the ID information, group index, are configured via a gNB or a BS.
[0048] With respect to the UE’s capacities, exemplarily, the one or more low power signal configurations include at least one of a configuration associated with a relationship between a bandwidth of channel, a parameter of a subcarrier spacing (SCS) , or a Physical Resource Block (PRB) parameter of a low power signal.
[0049] For example, given a bandwidth of 5M Hz. 11 RBs, 24 RBs, 25 RBs, or 12 RBs can be mandated capability for UE supporting LP-WUS. For different SCS (subcarrier spacing) , the mandated number of PRBs can be different, but may correspond to the same 5 MHz. For example, if a bandwidth of the SCS is 15 kHz, the PRBs of the low power signal can be 24 PRBs or 25 PRBs; alternatively or additionally, if a bandwidth of the SCS is 30 hHz, the PRBs of the low power signal can be 12 PRBs or 25 PRBs.
[0050] In case of other bandwidths, 10M Hz, 15M Hz, or 20M Hz, 106 RBs, 38 RBs, 51 RBs, or 52 RBs can be optionally supported. Additionally or alternatively, UE could report the LP-WUS bandwidth or resource aggregation unit, or time domain resources when the UE reports the capability or when the UE reports the assistance information.
[0051] Additionally or alternatively, the one or more low power signal configurations may include at least one sequence configuration for a low power signal. The sequence configurations can be configured to determine a number of sequences to transmit the LP-WUS information; alternative or additionally, the sequence configurations can be configured to determined a number of sequences to transmit the LP-WUS information for one UE in a group. As shown in Fig. 8, the sequence may occupy certain resources, such as X symbols or slots. For example, the sequence may occupy 7 symbols, 1 slot, or 2 slots. Exemplarily, the following equation may be satisfied: X symbols= n × 7, where n>=1; or X symbols = 2n×7, where n>=0; or X slots= 2n, where n>=0; or X slots=M×2n, M=1 / 2, n>=0. Additionally, different UEs may have different scrambling for its sequences or preambles.
[0052] Main Radio Monitoring after Reception of LP-WUS
[0053] According to some examples, the functions performed by UE associated with the configurations may include at least one of: determine a formula or a predefined rule for monitoring a candidate; determine a starting position for monitoring a candidate; determine a step size or granularity for monitoring a candidate; determining a cell ID or ID information for monitoring a candidate; determining a common monitoring space or group specific or UE specific monitoring space for monitoring a candidate; determine the monitoring occasion configurations, aggregation unit configurations, monitoring space configurations, repetition configurations, payload size configurations, format configurations, or resource aggregation unit configurations. According to some example, the functions performed by UE associated with the configurations may further include processing signals or channels, or processing uplink channel or signals.
[0054] For example, UE can determine various configurations preset of configured by a BS. UE can determine a starting position for monitoring a candidate, a step size or granularity for monitoring a candidate, a cell ID or ID information for monitoring a candidate, a common monitoring space or group specific or UE specific monitoring space for monitoring a candidate. UE monitors low power signals, accordingly, on at least one occasions in a time duration or a time window. The occasion can be defined based on at least one of one or more slots or one or more symbols in the time duration. For example, in one slot, a bitmap or bit string, for example, 14 bits, can be used to indicate the symbols for LP-WUS monitoring. In one slot, a bitmap or bit string, for example, 14 bits, can be used to indicate the symbols for LP-WUS monitoring. Additionally or alternative, a monitoring space can be configured to monitor LP-WUS, for example, in time domain. The monitoring space can be configured with at least one of a time duration, an offset, an period, a pattern, a bit string. These parameters may indicate symbols, number of candidates, resources, units, repetitions, payload sizes, or formats of the low power signals. The information or configuration may be combined. The UE may perform the function of monitoring PDCCH occasions after UE receives a low power signal; monitoring PDCCH occasions before a timer expires; stopping monitoring PDCCH occasions after the duration; or stopping monitoring PDCCH occasions after the timer expires.
[0055] For example, UE can monitor low power signals according to at least one of a time duration, an offset, a time reference point, a period, or a pattern. For example, the UE monitors low power signals according to at least one of a period and a offset, or a period and a pattern, or a time duration and an offset, or a time duration and a pattern, or any combination of above configurations. For example, UE monitors low power signals on at least one occasion in a time duration or a time window. The UE can monitor PDCCH occasions after the UE receives the LP-WUS, which wakes up the UE. The UE can monitor PDCCH occasion, or others main radio communications, before a timer expires. As shown in Fig. 1B, The UE may stops monitoring PDCCH occasions after a specific duration; for example, the UE may stop monitoring PDCCH occasions after the a expires. The timer may start after the UE receives the LP-WUS. The UE monitors low power signals on at least one occasions in a time duration or a time window.
[0056] For resource aggregation unit corresponding to candidates, the UE may need to blind decode the resource aggregation unit with configured candidates according to the configuration. As shown in Fig. 6, in the first resource aggregation unit, at most four candidates can be configured, while in the second resource aggregation unit, at most two candidates can be configured.
[0057] For examples, the decoding positions for the UE to decode a candidate can be determined by at least one of the monitoring space configuration, resource aggregation units, the number of candidates, the index of a candidate, the UE ID, RNTI (Radio Network Temporary Identifier) , or other configured parameters. In this case, the different candidates may share the same occasion, and the occasion has a fixed time and / or frequency allocation. The resource aggregation unit arrangement disclosed above can be applicable to arrangements for the settings of formats, payload sizes, structures, or code rates as well.
[0058] Exemplarily, the one or more low power signal configurations include different configurations associated with resource decoding locations in occasions locations of fields / bits / block in low power signals for at least UEs. If a LP-WUS is defined for multiple UEs, the resources can be allocated in time domain. For example, different UEs may have different resource decoding locations in one occasion. That is, for different UEs, the time domain resource where a LP-WUS can be decoded may be different in one occasion. Additionally or alternatively, different UEs may have different location of fields, bits, or blocks in a LP-WUS. Additionally, the mapping order between the occasions, fields, bits, or blocks and UEs can be configured by a BS or be predetermined. As shown in Fig. 7, in one occasion or candidate, the different slots represent different fields / bits / blocks for different UEs. Additionally or alternatively in some cases, there can be a maximum candidate limitation when monitoring LP-WUS in one slot or in a time duration or in an occasion.
[0059] According to some examples, a corresponding repetition or candidates or a number is configured for a payload size, format, pattern, monitoring space, or monitoring occasion. Exemplarily, at least one of the one or more payload size, format, or resource, aggregation unit configurations can be configured to indicate correspondingly different payload sizes, different formats, or different resource aggregation units for different pieces of user equipment (UEs) , different monitoring spaces, or different groups of UEs.
[0060] For example, different payload size setting can be configured for different UEs. For different UEs, the payload sizes associated with the LP-WUS can be different. Different payload size setting can be configured for different monitoring spaces; for different monitoring spaces, the payload sizes associated with the LP-WUS can be different. Different payload size settings can be configured for different UE groups; for different UE groups, the payload sizes associated with the LP-WUS can be different. Alternatively, the payload sizes of different UEs, monitoring spaces, or UE groups can be the same.
[0061] As shown in Fig. 1, after a LP-WUS is received, the MR may wake-up for monitoring PDCCH (Physical Downlink Control Channel) . The function can be performed according to different configurations. For example, the one or more low power signal configurations include at least one of: a monitoring time duration for a UE to monitor a PDCCH after being triggered by a low power signal; an offset time information indicating an offset associated with a monitoring time for low power signals; or a timer configuration. A time duration can be determined for UE monitoring a PDCCH after UE receives the LP-WUS. For example, the monitoring time duration may start from a first PDCCH occasion after a slot of the lower power signal, or alternatively or additionally, the monitoring time duration may start from a first slot after a slot of a slot of the lower power signal. As an example, the monitoring time duration can be configured via a low power signal, an RRC signaling, downlink control information (DCI) , or a MAC CE (Medium Access Control Control Element) . For example, the time duration may be of certain milliseconds or of a certain DRX cycles.
[0062] Exemplarily, the settings used to control the manner of main radio monitoring may further include a starting point setting, which may define a starting point of the main radio monitoring. The starting position could be based on configurations configured by a BS, such as a timer, or an offset. The starting point can be defined at the expiration of the timer. Alternatively or additionally, the starting position could be predetermined. For example, the starting position could be a next X slots / PDCCH occasion after LP-WUS is received.
[0063] The starting point can also start when a time duration lapses after the LP-WUS is received, which can be defined by the offset. The time offset could be an offset based on the end of the LP-WUS. The time offset could be a next slot or at least one slot, which setting can be predetermined or be configured by a BS.
[0064] Additionally or alternatively, a BS can configure parameter related to an timer, for example, InactivityTimerafter_LP-WUS_wakeup parameter, which indicates a duration after the PDCCH occasion in which a PDCCH indicates a new UL or DL transmission. For example, a BS can define a duration after the PDCCH occasion in which a PDCCH indicates a new UL or DL transmission for the MAC entity. Alternatively or additionally, the BS can define the duration after the PDCCH occasion, in which a PDCCH indicates a new UL or DL transmission in the last X time unit (such as slot) of time duration for the MAC entity, where X could be 1, 2, some other integers.
[0065] With this timer, UE can turn back to a sleep mode to save power if this timer expires after the LP-WUS wakes up the UE (as shown in Fig. 9) . Without this timer, UE may need to keep monitoring PDCCH occasion or wait for a PDCCH skipping command, which may cost some power and need a DCI scheduling.
[0066] According to some examples, the waking up time or point of the UE can be defined as follows. The starting position could be based on configuration configured by a BS, such as a timer (or more particularly its expiration) or an offset. The waking up time or point of the UE can also be predefined. The waking up position could be, for example, the next PDCCH occasion after a LP-WUS is received, or a time duration after a LP-WUS is received, or spaced from the reception of the LP-WUS after the offset.
[0067] According to some examples, if LP-WUS is used to activate the DRX (Discontinuous Reception) dynamically, the following can be determined. The UE or BS may determine which DRX cycle (s) is activated. The at least one DRX cycle to be activated after the reception of the LP-WUS can be at least one of the next or following DRX cycle, next or following X DRX cycles, where X>=1, DRX cycles in a time duration, or a number of next or following DRX cycles determined by the periodicity of DRX, and / or periodicity of LP-WUS monitoring.
[0068] Additionally or alternatively, the UE or BS may determine the starting position for DRX or duration-on of DRX. The starting position, for example, can be after the reception of the LP-WUS, after the reception of the LP-WUS plus an offset, or at a specific time unit after the reception of the LP-WUS, where the time unit can be at least one slot, slot symbol, subframe, or frame.
[0069] Additionally or alternatively, the UE or BS may determine a periodicity and offset of DRX cycle (s) . For example, a LP-WUS can be used to determine DRX cycle (s) periodicity and / or offset. After UE receives the first PDCCH in a duration, the UE may report the updated periodicity and / or offset information is received.
[0070] Additionally, the functions that can be performed by the UE and / or BS further includes at least one of: processing a channel or signal based on at least one of a reference point, or one or more low power signal configurations; processing a channel or signal, wherein the channel or signal comprises a PDCCH, a PDSCH, a PUSCH, a PUCCH, a PRACH, an SSB; stopping processing a channel or signal, wherein the channel or signal comprises a PDCCH, a PDSCH, a PUSCH, a PUCCH; monitoring or stop monitoring a PDCCH scrambled by a specific RNTI, wherein the specific RNTI comprises PEI-RNTI (early paging indication RNTI) , PS-RNTI (Power Saving RNTI) , CS-RNTI (Configured scheduling RNT) , MCCH-RNTI (MBS Control Channel RNTI) , G-RNTI (Group RNTI) , SI-RNTI (System Information RNTI) , P-RNTI (Paging RNTI) , or RA-RNTI (Random Access RNTI) , G-CS-RNTI, INT-RNTI (Interruption RNTI) , SFI-RNTI (Slot Format Indication RNTI) , TPC-PUSCH-RNTI (Transmit Power Control-PUSCH –RNTI) , TPC-PUCCH-RNTI (Transmit Power Control-PUCCH –RNTI) , TPC-SRS-RNTI (Transmit Power Control-Sounding Reference Symbols –RNTI) , or CI-RNTI (identification of cancellation RNTI) , MCS-C-RNTI (Modulcation Coding Scheme Cell RNTI) , and C-RNTI (Cell RNTI) ; monitoring a PDCCH or monitoring a PDCCH occasions before a timer expires; stopping monitoring a PDCCH occasions after a duration; stopping monitoring a PDCCH occasions after a timer expires; stopping monitoring or receiving a PDSCH or a PCDDH or an SPS PDSCH; stopping monitoring or receiving a PDSCH or a PCDDH or an SPS PDSCH in a time duration; stopping transmitting a PUSCH; transmitting PUCCH or stopping transmitting PUCCH; and / or activating or deactivating one or more SPS configurations.
[0071] According to some examples, the UE or BS may perform functions includes at least one of: processing signals or channels, or processing uplink channel or signals. Processing the uplink channel or signals includes processing the uplink channel or signal under some conditions. The conditions, for example, include when the first communication node does not receive low power signals; when the first communication node does not receive low power signals based on a time duration, a number of occasions and / or a timer; when the first communication node receives low power signals satisfying (being larger, equal, or less than) a threshold; when the first communication node receives low power signals satisfying (being larger, equal, or less than) a threshold based on a time duration, a number of occasions and / or a timer; when the first communication node receives low power signals indicating a specific configuration; and / or when a specific configuration is indicated by the second communication node.
[0072] According to some examples, the UE or BS may perform functions include at least one of: starting a timer, starting a time duration, monitoring a PDCCH occasion, monitoring a paging occasion.
[0073] According to some examples, the low power signal indicates at least one of: the number of paging occasions, number of sub-groups of a paging occasions, a bitmap, a TRS availability indication, a wake-up indication, an SCell dormancy indication.
[0074] For example, when the UE is enabled with LP-WUS, if the UE does not receive the LP-WUS for a time duration or a number of occasions (as shown in Fig. 9) , the UE may deactivate or disable the LP-WUS monitoring. Exemplarily, the UE can return or resume to monitoring PDCCHs, SSBs or other channels or signals. Additionally, the UE may report related information when it deactivates the LP-WUS monitoring. Alternatively or additionally, the UE may deactivated monitoring of the LP-WUS according to the configuration of a LP-WUS. For example, the BS may deactivate the LP-WUS monitoring via the LP-WUS or via RRC signalling or Mac CE signalling.
[0075] According to some examples, the UE may report information to the second communication node, wherein the reported information includes at least one of: LP-SS quality related information, a deactivating notification, a (preferred) low power signal configuration. For example, UE may report the LP-SS quality related information, if exists, alternatively in response to deactivation of the LP-WUS monitoring. Additionally or alternatively, UE may report it deactivates the LP-WUS monitoring. Additionally or alternatively, UE may report its preferred LP-WUS configuration, via UE assistance information. For example, the UE may report the information via a PUCCH (Physical Uplink Control Channel) . The reported information can be carried by the PUCCH in a specific PUCCH format, such as PUCCH format 2, 3, or 4. In addition, related parameters for the report of the UE in response to the deactivation of the LP-WUS can be included in PUCCH-related configuration. Alternatively or additionally, the UE can also report the information, if exist, in response to deactivation or disabling of the LP-WUS, via at least one of a PRACH, a CSI report, a sequence, UE assistance information, or a PUSCH.
[0076] LP-WUS for SPS / PDSCH
[0077] Exemplarily, the BS or UE may send or receive a low power signal, such that the UE can perform at least one of the following function accordingly: determining a control information for a PDSCH; determining frequency or time domain resource allocation for a PDSCH; determining a TBS for a PDSCH; determining a modulation order for a PDSCH; or determining a number of candidates or search space to monitor a PDCCH; determining a repetition number for a PDSCH; or determining a number of TBS for a PDSCH.
[0078] Exemplarily, the BS or UE may send or receive a low power signal configured to perform at least one of the following functions: indicating UE to stop monitoring or receiving a PDSCH or PCDDH or a SPS PDSCH; indicating a time period for UE to stop monitoring or receiving a PDSCH or PCDDH or a SPS PDSCH; indicating UE to stop transmitting PUSCH; activating or deactivating one or more SPS configuration; configuring a frequency resource or bandwidth for wireless transmission; or configuring resource for HARQ-ACK-related configuration.
[0079] According to some examples, a BS can transmit a LP-WUS to determine UE to stop receiving or monitoring PDSCH or PDCCH after the UE receives the LP-WUS. The UE may stop receiving or monitoring PDSCH or PDCCH for a time duration. This time duration may start from the first PDSCH transmission or occasion after the LP-WUS transmission’s slot. This time duration may also start after the end of the LP-WUS. This time duration may also start from a first slot after LP-WUS transmission’s slot. This time duration may also starts based on an offset or a timer. In addition, the PDSCH can be a SPS PDSCH. The PDSCH could be scheduled by DCI scrambled by a specific RNTI.
[0080] According to some examples, a BS can use a LP-WUS to indicate a time duration for stopping receiving PDSCH by UE. After such duration, the UE resumes PDSCH reception. For example, the UE may stop receiving or monitoring PDSCH or PDCCH when a timer expires. This timer may start from the first PDSCH transmission or occasion after a LP-WUS transmission’s slot. This timer may also start at the end of the LP-WUS. This timer may also start from a first slot after the LP-WUS transmission’s slot. This timer could be carried via LP-WUS or RRC signalling or Mac CE. In addition, the PDSCH may be SPS PDSCH. The PDSCH could be scheduled by DCI scrambled by a specific RNTI.
[0081] Additionally, the above mechanism may also be used to stop the monitoring or transmission of PUSCH. A BS may transmit a LP-WUS to determine UE to stop transmitting PUSCH with a time duration after the UE receives the LP-WUS. This time duration may start from a first PUSCH transmission or occasion after the LP-WUS transmission’s slot. This time duration may also start from a first slot after LP-WUS transmission’s slot. This time duration may also start based on an offset or a timer. The PUSCH may be CG-PUSCH. The PUSCH could be scheduled by DCI scrambled by a specific RNTI.
[0082] According to some examples additionally or alternatively, a BS can transmit a LP-WUS to indicate an index of one of multiple SPS configurations. The SPS configuration may be activated or deactivated by a LP-WUS transmitted from a BS. The LP-WUS may use several bits or bitmap bits to indicate each SPS configuration or SPS configuration group. The LP-WUS may also activate or deactivate at least one SPS configuration or all the SPS configuration in a time duration or according to a timer.
[0083] According to some examples additionally or alternatively, a BS may transmit a LP-WUS and use the LP-WUS to adjust some parameters. This approach could help achieve more dynamically scheduling. For example, the LP-WUS could indicate or adjust bandwidth or frequency resources. Assuming that in the activation DCI, the frequency resources are scheduled as X PRBs, the LP-WUS may indicate the frequency resources are doubled or N times than the indication via activation DCI, as shown in Fig. 10. The N times frequency domain resources can be allocated continuously or discontinuous or allocated. Additionally or alternatively, the LP-WUS could indicate or adjust time domain resources. Assuming that in the activation DCI, the time domain resource assignment is scheduled as X symbols or slots, the LP-WUS may indicate the time domain resources are doubled or N times than the indication via activation DCI. The N times time domain resources can be allocated in continuous slots or allocated in N slots. In addition, between two PDSCHs, there may be a gap.
[0084] According to some examples additionally or alternatively, a LP-WUS can be used to indicate an HARQ-ACK codebook index, an HARQ process ID, an offset used in deriving the HARQ process IDs, or an MCS table.
[0085] Exemplarily, after UE receives a lower power signal and stops receiving PDSCH in response, the UE or BS may transmit or receive at least one of: HARQ-ACK / HARQ-NACK, low power signal related information between the UE and a BS. According to some examples, the UE may stop sending PUCCH after the UE receives a lower power signal and stops receiving PDSCH in response. If UE receives a LP-WUS stops receiving PDSCH in response, the UE may feedback HARQ-ACK / HARQ-NACK. If the UE receives a LP-WUS and stop receiving PDSCH in response, the UE may feedback HARQ-ACK / HARQ-NACK and LP-WUS related information. The LP-WUS related information may indicate the LP-WUS is successfully received. If the UE receives the LP-WUS and stop receiving PDSCH in a time duration, the UE may decide not to feedback PUCCH in this time duration.
[0086] According to some examples, a BS can configure LP-WUS monitoring occasion for SPS (Semi-Persistent Scheduling) . The BS may, exemplarily, configure a periodicity and / or an offset for the LP-WUS. The periodicity can be the same with that for SPS or in SPS-Config parameter. The offset can be determined based on SPS configuration. The periodicity or the offset can both be determined based on the BS’s configuration. The BS may, exemplarily, configure a duration for the LP-WUS. A LP-WUS transmitted by a BS may indicate a time duration for stopping receiving PDSCH. Additionally, a LP-WUS transmitted by a BS may indicate an application delay or offset before the time duration starts.
[0087] Carrier Aggregation
[0088] Exemplarily, the various embodiments of this disclosure can be implemented with carrier aggregation. For example, the BS or UE may transmit or receive a low power signals from a first cell to indicate PDCCH monitoring of another cell. The BS or UE may transmit or receive a low power signal, where the lower power signals are configured to indicate PDCCH monitoring of a specific band, UE, BWP, or Cell, but not other of them. For example, a LP-WUS can be transmitted in PCell to indicates the SCell PDCCH monitoring. Alternatively or additionally, a LP-WUS can also be transmitted in PCell to indicate the PDCCH monitoring for PCell and SCell. Alternatively or additionally, a LP-WUS can be transmitted in each cell, and indicate the PDCCH monitoring for this cell. According to some examples, LP-WUS’s configuration or LP-WUS’s trigger can be configured at a band-specific, UE-specific, BWP-specific, or Cell-specific. When a LP-WUS is used to determine the PDCCH monitoring in all the SCells and PCell, the SCells and PCell can be activated at the same time to monitor the PDCCH. According to some example, the lower power signal includes an identifier configured to identify an associated band, UE, BWP, and / or Cell. When a LP-WUS is used to indicate a certain cell of the UE to wake-up for PDCCH monitoring, a bitmap or several bits can be used, where each bit corresponds to a cell or cell group. According to some examples, a field or several bits via LP-WUS can be used to indicate how a LP-WUS determines PDCCH monitoring for a PCell and / or a SCell. An RRC parameter can be configured by RRC signalings to determine the association each bit and cell. For example, for each UE, at most X bits (where X<=16 or 15 bits) can be used to indicate which SCell may require UE to wake-up for PDCCH monitoring. Alternatively or additionally, for each UE, at most X bits can be used to indicate which SCell group may require UE to wake-up for PDCCH monitoring. In addition, sequences of a LP-WUS can also be used to indicate how LP-WUS determines the PDCCH monitoring for PCell and SCells. Additionally or alternatively, when a PDCCH in at least one SCell or at least one SCell group of UE is indicated to be monitored, the UE may still keep monitoring PDCCH in a PCell.
[0089] In some examples. The first communication node performs one or more wireless communication functions in one or more cells. In some examples, the low power signal is transmitted or received in a first cell to indicate performing function in a second cell; the low power signal is transmitted or received in a first cell to indicate performing function in the first cell and a second cell; and / or the low power signal is transmitted in a first cell to indicate performing function in the first cell or a second cell, wherein the second cell is the same or different with the first cell. In some examples, the first cell could be the PCell. In some examples, the second cell could be the SCell. If the second Cell is the same with the first cell, it means the LP-WUS is applied in only one cell or in PCell.
[0090] Beam Formation
[0091] According to some examples, the one or more low power signal configurations may include at least one of: a TCI (Transmission Configuration Indication) for low power signals; one or more of TCI states for low power signals; a TCI states list; or quasi-co-location (QCL) information for low power signals; or an association between low power signals and physical channels or signals or configurations. For example, the TCI information and / or QCL information is associated with a PDCCH, a CORESE ID, an SS ID, and / or an SSB index. The TCI information and / or QCL information is associated with a PDSCH. The association is between the low power signal and a PDCCH or a PDSCH or an SSB or a CSI-RS or a CORESET ID or an SS ID.
[0092] Fig. 11 illustrates a block diagram of an exemplary wireless communication system 10, in accordance with some embodiments of this disclosure. The system 10 may perform the methods / steps and their combination disclosed in this disclosure. The system 10 may include components and elements configured to support operating features that need not be described in detail herein.
[0093] The system 10 may include a base station (BS) 110 and user equipment (UE) 120. The BS 110 includes a BS transceiver or transceiver module 112, a BS antenna system 116, a BS memory or memory module 114, a BS processor or processor module 113, and a network interface 111. The components of BS 110 may be electrically coupled and in communication with one another as necessary via a data communication bus 180. Likewise, the UE 120 includes UE transceiver or transceiver module 122, a UE antenna system 126, a UE memory or memory module 124, a UE processor or processor module 123, and an I / O interface 121. The components of the UE 120 may be electrically coupled and in communication with one another as necessary via a data communication bus 190. The BS 110 communicates with the UE 120 via communication channels therebetween, which can be any wireless channel or other medium known in the art suitable for transmission of data as described herein. The channels may include carriers of PCells and SCells.
[0094] The processor modules 113, 123 may be implemented, or realized, with a general-purpose processor, a content addressable memory, a digital signal processor, an application specific integrated circuit, a field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein. In this manner, a processor module may be realized as a microprocessor, a controller, a microcontroller, a state machine, or the like. A processor module may also be implemented as a combination of computing devices, e.g., a combination of a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.
[0095] Furthermore, the steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in firmware, in a software module performed by processor modules 113, 123, respectively, or in any practical combination thereof. The memory modules 113, 123 may be realized as RAM memory, flash memory, EEPROM memory, registers, ROM memory, EPROM memory, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art. In this regard, the memory modules 114, 124 may be coupled to the processor modules 113, 123 respectively, such that the processors modules 113, 123 can read information from, and write information to, memory modules 114, 124 respectively. The memory modules 114, 124 may also be integrated into their respective processor modules 113, 123. In some embodiments, the memory modules 114, 124 may each include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be performed by processor modules 113, 123, respectively. The memory modules 114, 124 may also each include non-volatile memory for storing instructions to be performed by the processor modules 113, 123, respectively.
[0096] Various exemplary embodiments of the present disclosure are described herein with reference to the accompanying figures to enable a person of ordinary skill in the art to make and use the present disclosure. The present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order and / or hierarchy of steps in the methods disclosed herein are merely exemplary approaches. Based upon design preferences, the specific order or hierarchy of steps of the disclosed methods or processes can be re-arranged while remaining within the scope of the present disclosure. Thus, those of ordinary skill in the art would understand that the methods and techniques disclosed herein present various steps or acts in exemplary order (s) , and the present disclosure is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
[0097] This disclosure is intended to cover any conceivable variations, uses, combination, or adaptive changes of this disclosure following the general principles of this disclosure, and includes well-known knowledge and conventional technical means in the art and undisclosed in this application.
[0098] It is to be understood that this disclosure is not limited to the precise structures or operation described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope of this application. The scope of this application is subject only to the appended claims.
[0099] The methods, devices, processing, circuitry, and logic described above may be implemented in many different ways and in many different combinations of hardware and software. For example, all or parts of the implementations may be circuitry that includes an instruction processor or controller, such as a Central Processing Unit (CPU) , microcontroller, or a microprocessor; or as an Application Specific Integrated Circuit (ASIC) , Programmable Logic Device (PLD) , or Field Programmable Gate Array (FPGA) ; or as circuitry that includes discrete logic or other circuit components, including analog circuit components, digital circuit components or both; or any combination thereof. The circuitry may include discrete interconnected hardware components or may be combined on a single integrated circuit die, distributed among multiple integrated circuit dies, or implemented in a Multiple Chip Module (MCM) of multiple integrated circuit dies in a common package, as examples.
[0100] Accordingly, the circuitry may store or access instructions for execution, or may implement its functionality in hardware alone. The instructions may be stored in a tangible storage medium that is other than a transitory signal, such as a flash memory, a Random Access Memory (RAM) , a Read Only Memory (ROM) , an Erasable Programmable Read Only Memory (EPROM) ; or on a magnetic or optical disc, such as a Compact Disc Read Only Memory (CDROM) , Hard Disk Drive (HDD) , or other magnetic or optical disk; or in or on another machine-readable medium. A product, such as a computer program product, may include a storage medium and instructions stored in or on the medium, and the instructions when performed by the circuitry in a device may cause the device to implement any of the processing described above or illustrated in the drawings.
[0101] The implementations may be distributed. For instance, the circuitry may include multiple distinct system components, such as multiple processors and memories, and may span multiple distributed processing systems. Parameters, databases, and other data structures may be separately stored and managed, may be incorporated into a single memory or database, may be logically and physically organized in many different ways, and may be implemented in many different ways. Example implementations include linked lists, program variables, hash tables, arrays, records (e.g., database records) , objects, and implicit storage mechanisms. Instructions may form parts (e.g., subroutines or other code sections) of a single program, may form multiple separate programs, may be distributed across multiple memories and processors, and may be implemented in many different ways. Example implementations include stand-alone programs, and as part of a library, such as a shared library like a Dynamic Link Library (DLL) . The library, for example, may contain shared data and one or more shared programs that include instructions that perform any of the processing described above or illustrated in the drawings, when performed by the circuitry.
[0102] In some examples, each unit, subunit, and / or module of the system may include a logical component. Each logical component may be hardware or a combination of hardware and software. For example, each logical component may include an application specific integrated circuit (ASIC) , a Field Programmable Gate Array (FPGA) , a digital logic circuit, an analog circuit, a combination of discrete circuits, gates, or any other type of hardware or combination thereof. Alternatively or in addition, each logical component may include memory hardware, such as a portion of the memory, for example, that includes instructions executable with the processor or other processors to implement one or more of the features of the logical components. When any one of the logical components includes the portion of the memory that includes instructions executable with the processor, the logical component may or may not include the processor. In some examples, each logical component may just be the portion of the memory or other physical memory that includes instructions executable with the processor or other processor to implement the features of the corresponding logical component without the logical component including any other hardware. Because each logical component includes at least some hardware even when the included hardware includes software, each logical component may be interchangeably referred to as a hardware logical component.
[0103] A second action may be said to be “in response to” a first action independent of whether the second action results directly or indirectly from the first action. The second action may occur at a substantially later time than the first action and still be in response to the first action. Similarly, the second action may be said to be in response to the first action even if intervening actions take place between the first action and the second action, and even if one or more of the intervening actions directly cause the second action to be performed. For example, a second action may be in response to a first action if the first action sets a flag and a third action later initiates the second action whenever the flag is set.
[0104] To clarify the use of and to hereby provide notice to the public, the phrases “at least one of , , …and <N> ” or “at least one of , , … <N> , or combinations thereof” or “ , , …and / or <N> ” are defined by the Applicant in the broadest sense, superseding any other implied definitions hereinbefore or hereinafter unless expressly asserted by the Applicant to the contrary, to mean one or more elements selected from the group comprising A, B, …and N. In other words, the phrases mean any combination of one or more of the elements A, B, …or N including any one element alone or the one element in combination with one or more of the other elements which may also include, in combination, additional elements not listed.
Claims
1.A wireless communication method, comprising:determining, by a first communication node, one or more low power signal configurations; andperforming one or more wireless communication functions according to the one or more low power signal configurations, wherein the one or more low power signal configurations comprise at least one of a signalling via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration.2.The method of claim 1, wherein the one or more low power signal configurations include at least one of: one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, hopping, gap or reference point configurations.3.The method of claim 2, wherein:the one or more pattern configurations comprise at least one or more time duration configurations, offset configurations, period configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, or reference point configurations; and / orthe one or more format configurations comprise at least one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, or reference point configurations; and / orthe one or more monitoring space configurations comprise at least one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring occasion configurations, or reference point configurations; and / orthe one or more reference point configurations comprise information of at least one of a reference time point, a reference frequency point, or a time and frequency point.4.The method of claim 2 or 3, wherein a corresponding repetition or candidates or a number is configured for a payload size, format, pattern, monitoring space, or monitoring occasion.5.The method of claim 2, wherein:the one or more duration configurations indicate at least one of a time duration for monitoring low power signal, monitoring PDCCH, skipping PDSCH, skipping SPS PDSCH, or skipping CG-PUSCH;the one or more offset configurations indicate an offset based on a DRX or subframe or SFN or symbol or H-SFN or time units;the one or more repetition configurations indicate a repetition number, wherein the repetition number comprises at least one of {1, 2, 4, 8, 16, 32, 64, 128} ;the one or more resource aggregation unit configurations indicate a number of at least one of symbols or PRBs or continuous PRBs or continuous symbols;the monitoring occasion configurations indicate monitoring occasion in at least one slot, symbol, subframe, SFN, or time unit; and / orthe candidate configurations indicates a number of candidates, time domain and / or frequency domain resources for candidates, domain and / or frequency domain locations for candidates, or different time domain and / or frequency locations for different candidates.6.The method of claim 1 or 2 or 3, wherein performing one or more wireless communication functions according to the one or more candidate configurations further comprising at least one of:determining a formula or a predefined rule for monitoring a candidate;determining a starting position for monitoring a candidate;determining the step size or granularity for monitoring a candidate;determining a cell ID or ID information for monitoring a candidate;determining a common monitoring space or group specific or UE specific monitoring space for monitoring a candidate; ordetermining the monitoring occasion configurations, aggregation unit configurations, monitoring space configurations, repetition configurations, payload size configurations, format configurations, or resource aggregation unit configurations.7.The method of claim 1 or 2, wherein the one or more low power signal configurations indicate at least one of a common configuration, a UE specific configuration, or a UE group specific configuration.8.The method of claim 7, wherein:the common configuration includes information of at least one of SI change notification, ETWS / CMAS, Cell-ID or cell specific wake-up; ordifferent common configurations includes different information; orthe common configuration is applied for sync or RRM measurement or wake-up; orthe common configuration is carried via sequences or preambles; orthe common configuration is applied for the first communication nodes in a cell; orthe common configuration comprise the first common configuration, and / or the second common configuration; or,the first common configuration is used for the first low power signal, and the second common configuration is used for the second low power signal.9.The method of claim 7, wherein:the UE specific configuration includes at least one of wake-up information, ID information, Cell or SCell wake-up information, a stop PDCCH monitoring indication, a time duration, a time offset, or an application delay; ordifferent first communication nodes have different ID information; orthe UE specific configuration is applied for one or more the first communication nodes with the same ID; orthe UE specific configuration is applied for one or more cells.10.The method of claim 7, wherein:the UE group specific configuration includes at least one of: wake-up information, group index information, Cell or SCell wake-up information, a PDCCH monitoring termination indication, a time duration, a time offset, or an application delay; ordifferent group has different group index information; orthe group specific configuration is applied for a group of first communication nodes with the same group index; orthe group specific configuration is applied for one or more cells.11.The method of claim 1, wherein the one or more low power signal configurations include at least one of:a monitoring time duration for the first communication node to monitor PDCCH after being triggered by a low power signal;an offset time information indicating an offset associated with a monitoring time duration for low power signals; ora timer or active timer or inactive timer configuration.12.The method of claim 11, wherein:the monitoring time duration starts based on at least one of a PDCCH occasion, a PDCCH candidate, SPS occasion, or CG-occasion after the lower power signal; and / orthe monitoring time duration starts based on at least one of a slot, a symbol, a candidate after the lower power signal.13.The method of claim 11, wherein the monitoring time duration starts based on an offset; the monitoring time duration starts based on SRS, CSI-RS, or PT-RS or a reference point; the monitoring time duration starts based on the starting of a DRX; and / or the monitoring time duration starts based on a timer.14.The method of claim 11, wherein the monitoring time duration is the same with or is based on a time duration for DRX; and / or the offset is the same with or is based on an offset for DRX; and / or the timer or active timer or inactive timer configuration is the same with or is based on an active or inactive timer for DRX.15.The method of claim 11, wherein the monitoring time duration is configured or signalled via a low power signal, an RRC signaling, downlink control information (DCI) , or a MAC CE.16.The method of claim 1, wherein performing one or more wireless communication functions includes at least one of: processing signals or channels, or processing uplink channel or signals.17.The method of claim 16, wherein processing the uplink channel or signals includes processing the uplink channel or signal under some conditions.18.the method of 17, wherein the conditions comprise at least one of:the first communication node does not receive low power signals;the first communication node does not receive low power signals based on a time duration, a number of occasions and / or a timer;the first communication node receives low power signals satisfying a threshold;the first communication node receives low power signals satisfying a threshold based on a time duration, a number of occasions and / or a timer;the first communication node receives low power signals indicating a specific configuration; and / ora specific configuration is indicated by the second communication node.19.The method of claims 17 or 18, wherein processing uplink channel or signals includes at least one of:reporting information to the second communication node, wherein the reported information includes at least one of: LP-SS quality related information, a deactivating notification, a preferred low power signal configuration; orreporting HARQ-ACK / HARQ-NACK.20.The method of claims 17, or 18, or 19, the uplink channel or signal transmissions comprises a PUCCH, a PUSCH, a PRACH, a CSI report, UE assistance information.21.The method of claim 1, further comprising performing one or more wireless communication functions in one or more cells.22.The method of claim 21, wherein:the low power signal is transmitted or received in a first cell to indicate performing function in a second cell;the low power signal is transmitted or received in a first cell to indicate performing function in the first cell and a second cell; and / orthe low power signal is transmitted in a first cell to indicate performing function in the first cell or a second cell, wherein the second cell is the same or different with the first cell.23.The method of claim 1 or 16, wherein the one or more functions further comprises at least one of the following:processing a channel or signal based on at least one of a reference point, or one or more low power signal configurations;processing a channel or signal, wherein the channel or signal comprises a PDCCH, a PDSCH, a PUSCH, a PUCCH, a PRACH, an SSB;stopping processing a channel or signal, wherein the channel or signal comprises a PDCCH, a PDSCH, a PUSCH, a PUCCH;monitoring a PDCCH scrambled by a specific RNTI, wherein the specific RNTI comprises CS-RNTI, MCCH-RNTI, G-RNTI, SI-RNTI, P-RNTI, or RA-RNTI, G-CS-RNTI, INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, or CI-RNTI, MCS-C-RNTI, and C-RNTI;monitoring a PDCCH or monitoring a PDCCH occasions before a timer expires;stopping monitoring a PDCCH occasions after a duration;stopping monitoring a PDCCH occasions after a timer expires;stopping monitoring or receiving a PDSCH or a PCDDH or an SPS PDSCH;stopping monitoring or receiving a PDSCH or a PCDDH or an SPS PDSCH in a time duration;stopping transmitting a PUSCH;transmitting PUCCH or stopping transmitting PUCCH;activating or deactivating one or more SPS configurations;starting a timer; and / orstarting a timer based on a PCell, Scell, SpCell, DRX cycle or a long DRX cycle.24.The method of claim 1, wherein the configuration via low power signal includes at least one of the following:a control information for a PDSCH;frequency or time domain resource allocation for a PDSCH;a TBS for a PDSCH;a modulation order for a PDSCH;a number of candidates or search space to monitor a PDCCH;a repetition number for a PDSCH;a number of TBS for a PDSCH.a wake-up indication;an SCell dormancy indication;a TRS availability indication;a number of paging occasions; ora number of sub-groups of a paging occasion.25.The method of claim 1, wherein the one or more low power signal configurations include at least one of:a TCI (Transmission Configuration Indication) for low power signals;one or more of TCI states for low power signals;a TCI states list;quasi-co-location (QCL) information for low power signals; oran association between low power signals and physical channels or signals or configurations.26.The method of claim 25, wherein:the TCI information and / or QCL information is associated with a PDCCH, a CORESE ID, an SS ID, and / or an SSB index;the TCI information and / or QCL information is associated with a PDSCH; and / orthe association is between the low power signal and a PDCCH or a PDSCH or an SSB or a CSI-RS or CORESET ID or anSS ID.27.the method of claim 1, wherein:the low power signal is based on OOK modulation, FSK modulation, or OFDM; and / orthe low power signal includes CRS bits or sequences.28.A wireless communication method, comprising:transmitting, by a second communication node to at least one first communication node, one or more low power signal configurations; anddetermining one or more wireless communication functions according to the one or more low power signal configurations, wherein the one or more low power signal configurations comprise at least one of a signalling via a low power signal, a signalling or configuration from a second communication node, or a pre-configuration.29.The method of claim 28, wherein the one or more low power signal configurations include at least one of: one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, hopping, gap or reference point configurations.30.The method of claim 29, wherein:the one or more pattern configurations comprise at least one or more time duration configurations, offset configurations, period configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, or reference point configurations; orthe one or more format configurations comprise at least one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, resource aggregation unit configurations, monitoring space configurations, monitoring occasion configurations, or reference point configurations; orthe one or more monitoring space configurations comprise at least one or more time duration configurations, offset configurations, period configurations, pattern configurations, bit map / string configurations, symbol configurations, candidate configurations, resource configurations, unit configurations, repetition configurations, payload size configurations, format configurations, resource aggregation unit configurations, monitoring occasion configurations, or reference point configurations; and / orthe one or more reference point configurations comprise information of at least one of a reference time point, a reference frequency point, or a time and frequency point.31.The method of claim 29 or 30, wherein a corresponding repetition or candidates or a number is configured for a payload size, format, pattern, monitoring space, or monitoring occasion.32.The method of claim 29, wherein:the one or more duration configurations indicate at least one of a time duration for monitoring low power signal, monitoring PDCCH, skipping PDSCH, skipping SPS PDSCH, or skipping CG-PUSCH;the one or more offset configurations indicate an offset based on a DRX or subframe or SFN or symbol or H-SFN or time units;the one or more repetition configurations indicate a repetition number, wherein the repetition number comprises at least one of {1, 2, 4, 8, 16, 32, 64, 128} ;the one or more resource aggregation unit configurations indicate a number of at least one of symbols or PRBs or continuous PRBs or continuous symbols;the monitoring occasion configurations indicate monitoring occasion in at least one slot, symbol, subframe, SFN, or time unit; and / orthe candidate configurations indicates a number of candidates, time domain and / or frequency domain resources for candidates, domain and / or frequency domain locations for candidates, or different time domain and / or frequency locations for different candidates.33.The method of claim 28 or 29, wherein the one or more low power signal configurations indicate at least one of a common configuration, a UE specific configuration, or a UE group specific configuration.34.The method of claim 33, wherein:the common configuration includes information of at least one of SI change notification, ETWS / CMAS, Cell-ID or cell specific wake-up; ordifferent common configurations includes different information; orthe common configuration is applied for sync or RRM measurement or wake-up; orthe common configuration is carried via sequences or preambles; orthe common configuration is applied for the first communication nodes in a cell; orthe common configuration comprise the first common configuration, and / or the second common configuration; orthe first common configuration is used for the first low power signal, and the second common configuration is used for the second low power signal.35.The method of claim 33, wherein:the UE specific configuration includes at least one of wake-up information, ID information, Cell or SCell wake-up information, a stop PDCCH monitoring indication, a time duration, a time offset, or an application delay; ordifferent first communication nodes have different ID information; orthe UE specific configuration is applied for one or more the first communication nodes with the same ID; orthe UE specific configuration is applied for one or more cells.36.The method of claim 33, wherein:the UE group specific configuration includes at least one of: wake-up information, group index information, Cell or SCell wake-up information, a PDCCH monitoring termination indication, a time duration, a time offset, or an application delay; ordifferent group has different group index information; orthe group specific configuration is applied for a group of first communication nodes with the same group index; orthe group specific configuration is applied for one or more cells.37.The method of claim 28, wherein the one or more low power signal configurations include at least one of:a monitoring time duration for the first communication node to monitor PDCCH after being triggered by a low power signal;an offset time information indicating an offset associated with a monitoring time duration for low power signals; ora timer or active timer or inactive timer configuration.38.The method of claim 37, wherein:the monitoring time duration starts based on at least one of a PDCCH occasion, a PDCCH candidate, SPS occasion, or CG-occasion after the lower power signal; and / orthe monitoring time duration starts based on at least one of a slot, a symbol, a candidate after the lower power signal.39.The method of claim 37, wherein the monitoring time duration starts based on an offset; the monitoring time duration starts based on SRS, CSI-RS, or PT-RS or a reference point; the monitoring time duration starts based on the starting of a DRX; and / or the monitoring time duration starts based on a timer.40.The method of claim 37, wherein the monitoring time duration is the same with or is based on a time duration for DRX; and / or the offset is the same with or is based on an offset for DRX; and / or the timer or active timer or inactive timer configuration is the same with or is based on an active or inactive timer for DRX.41.The method of claim 37, wherein the monitoring time duration is configured or signalled via a low power signal, an RRC signaling, downlink control information (DCI) , or a MAC CE.42.The method of claim 28, further comprising receiving uplink channel or signals.43.The method of claim 42, wherein receiving the uplink channel or signals includes receiving the uplink channel or signal under some conditions.44.the method of 43, wherein the conditions comprise at least one of:the first communication node does not receive low power signals;the first communication node does not receive low power signals based on a time duration, a number of occasions and / or a timer;the first communication node receives low power signals satisfying a threshold;the first communication node receives low power signals satisfying a threshold based on a time duration, a number of occasions and / or a timer;the first communication node receives low power signals indicating a specific configuration; and / ora specific configuration is indicated by the second communication node.45.The method of claims 42 or 43, wherein receiving uplink channel or signals includes at least one of:receiving information to the second communication node, wherein the reported information includes at least one of: LP-SS quality related information, a deactivating notification, a preferred low power signal configuration; orreceiving HARQ-ACK / HARQ-NACK.46.The method of claims 43, or 44, or 45, the uplink channel or signal transmissions comprises a PUCCH, a PUSCH, a PRACH, a CSI report, UE assistance information.47.The method of claim 28, further comprising performing one or more wireless communication functions in one or more cells.48.The method of claim 47, wherein:the low power signal is transmitted or received in a first cell to indicate performing function in a second cell;the low power signal is transmitted or received in a first cell to indicate performing function in the first cell and a second cell; and / orthe low power signal is transmitted in a first cell to indicate performing function in the first cell or a second cell, wherein the second cell is the same or different with the first cell.49.The method of claim 28, wherein the configuration via low power signal includes at least one of the following:a control information for a PDSCH;frequency or time domain resource allocation for a PDSCH;a TBS for a PDSCH;a modulation order for a PDSCH;a number of candidates or search space to monitor a PDCCH;a repetition number for a PDSCH; ora number of TBS for a PDSCH;a wake-up indication;an SCell dormancy indication;a TRS availability indication;a number of paging occasions; ora number of sub-groups of a paging occasion.50.The method of claim 28, wherein the one or more low power signal configurations include at least one of:a TCI (Transmission Configuration Indication) for low power signals;one or more of TCI states for low power signals;a TCI states list; orquasi-co-location (QCL) information for low power signals; oran association between low power signals and physical channels or signals or configurations.51.The method of claim 50, wherein:the TCI information and / or QCL information is associated with a PDCCH, a CORESE ID, an SS ID, and / or an SSB index;the TCI information and / or QCL information is associated with a PDSCH; and / orthe association is between the low power signal and a PDCCH or a PDSCH or an SSB or a CSI-RS or a CORESET ID or an SS ID.52.the method of claim 28, wherein:the low power signal is based on OOK modulation, FSK modulation, or OFDM; and / orthe low power signal includes CRS bits or sequences.53.A wireless communication apparatus, comprising a memory storing one or more programs and one or more processors electrically coupled to the memory and configured to execute the one or more programs to perform any one of the methods of claims 1 to 52.54.A non-transitory computer-readable storage medium, storing one or more programs, the one or more programs being configured to, when executed by a processor, cause to perform any one of the methods of claims 1 to 52.
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