Low power signal design
Patent Information
- Application Number
- PCT/CN2024/084853
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-07-31
Smart Images

Figure CN2024084853_31072025_PF_FP_ABST
Abstract
Description
LOW POWER SIGNAL DESIGNTECHNICAL FIELD
[0001] This document is directed generally to digital wireless communications.BACKGROUND
[0002] Mobile telecommunication technologies are moving the world toward an increasingly connected and networked society. In comparison with the existing wireless networks, next generation systems and wireless communication techniques will need to support a much wider range of use-case characteristics and provide a more complex and sophisticated range of access requirements and flexibilities.
[0003] Long-Term Evolution (LTE) is a standard for wireless communication for mobile devices and data terminals developed by 3rd Generation Partnership Project (3GPP) . LTE Advanced (LTE-A) is a wireless communication standard that enhances the LTE standard. The 5th generation of wireless system, known as 5G, advances the LTE and LTE-A wireless standards and is committed to supporting higher data-rates, large number of connections, ultra-low latency, high reliability and other emerging business needs.SUMMARY
[0004] Techniques are disclosed for configuration, transmission, monitoring and / or reception of a low power signal or a downlink (DL) signal.
[0005] An example wireless communication method includes determining, by a communication device, a configuration related to a first signal or a second signal; and performing, by the communication device, an operation according to the configuration. In some embodiments, the determining the configuration includes receiving the configuration. In some embodiments, performing the operation comprises receiving / monitoring / detecting the first signal or second signal. In some embodiments, performing the operation comprises receiving / monitoring / detecting physical downlink control channel (PDCCH) after receiving the first signal or second signal according to the configuration related to first signal or second signal.
[0006] Another example wireless communication method includes transmitting, by a communication node, a configuration related to a first signal or a second signal; and performing, by the communication node, an operation according to the configuration. In some embodiments, performing the operation by the communication node comprises transmitting the first signal or second signal. In some embodiments, the communication device may include and not limited to a user equipment (UE) , terminal, device, mobile phone, Pad, Virtual Reality terminal, Augmented Reality terminal. In some embodiments, a communication node may include and not limited to a base station, network device, reconfigurable intelligent surface, core network, relay, or repeater.
[0007] In some embodiments, the first signal includes any one or more of following: the first signal is a wake-up signal, the first signal indicates the communication device to wake-up, the first signal indicates the communication device to monitor a physical downlink control channel (PDCCH) , the first signal indicates the communication device to trigger a PDCCH monitoring, the first signal indicates a subgroup identifier (ID) information, and / or the first signal is transmitted with 1, 2, 4 or 8 beams. In some embodiments, the second signal includes any one or more of following: the second signal is a sync signal; the second signal comprises a low-power synchronization signal, a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , or a synchronization signal block (SSB) , the second signal is used for synchronization or measurement, the second signal is transmitted with 1, 2, 4, or 8 beams, and / or the second signal is monitored in a window or gap.
[0008] In some embodiments, the first signal and the second signal can be configured with a periodicity of 320ms at least, the first signal and second signal are monitored in the occasions, and / or the first signal and the second signal can have a same SCS or CP.
[0009] In some embodiments, the configuration includes any one or more of: a periodicity, a window, a time duration, a bitmap, a starting occasion or slot or symbol, a number of occasions, a number of slots or symbols, or a number of beams, a reference time point, a pattern, a subcarrier spacing (SCS) , a cyclic prefix (CP) , beam information, or repetition information.
[0010] In some embodiments, the communication device (or the UE) performs the operation according to the configuration, monitor or receive the first signal or second signal according to the configuration. In some embodiments, the communication device (or the UE) monitors / receives / detects the first signal or second signal according to the one or more of at least a periodicity, at least a window, at least a time duration, at least a bitmap, at least a starting occasion or slot or symbol, at least a number of occasions, a number of slots or symbols, or a number of beams, at least a reference time point, at least a pattern, at least a subcarrier spacing (SCS) , a cyclic prefix (CP) , beam information, or repetition information. In some embodiments, the configuration includes: a first periodicity for the first signal and a second periodicity for the second signal for the communication device in an idle or an inactive state, a time window or a time duration comprises at least one occasion, occasion is defined based on one or more time units, slots, symbols (e.g., OFDM symbols, on off keying (OOK) chips, OOK symbols, modulated / modulation symbols, complex-valued symbols, binary-valued symbols, or 0-1 valued symbols) , frames, beams, or repetitions, or based on a window, a time duration, or a length, a bitmap that indicates one or more occasions for the first signal or the second signal, a bitmap that includes one or more bits, wherein each bit corresponds to an occasion, a window, or a time duration for the first signal or the second signal, a reference time point includes a paging occasion (PO) , a reference slot, a reference frame or a system frame number (SFN) , a reference symbol, a reference time domain point, or a pattern, wherein the pattern comprises at least one of a periodicity, a window, a time duration, a bitmap, beam information, repetition information, a subcarrier spacing (SCS) , a cyclic prefix (CP) . In some embodiments, the reference time point is a time location for determining monitoring the first signal.
[0011] In some embodiments, the occasions, the window, the periodicity, the time duration, the beams, or repetition are based on valid resources, and the valid resources are based on downlink (DL) slots, DL symbols, DL subframes, or system frame number (SFN) , or configuration in Time Division Duplexing (TDD) , or in unpaired spectrum. In some embodiments, at least one window, one time duration, or one occasion is within one cycle, and the one cycle is determined by the periodicity or is same as periodicity. In some embodiments, the beam information is based on a pattern or a predetermined rule, and the pattern or the predetermined rule indicates an order of the beams, the number of beams, locations of the beams, the indexes of the beams, the window, the time duration, the periodicity, the repetition information, the SCS, the CP or an offset, or the beam information includes beam index information for an occasion, a number of beams, the periodicity, the offset, the window or the time duration. In some embodiments, the repetition information and the beam information indicate that multiple beams with a same beam index or information are repeated on N continuous occasions, or the repetition information and the beam information indicate that the multiple beams with the same beam index or information are repeated on every N or N-1 occasions, where N is a repetition number determined by repetition information.
[0012] In some embodiments, the configuration comprise or is included a downlink (DL) control information that includes any one or more of the following: an activation indication, an deactivation indication, a periodicity, a repetition indication, time domain resources, frequency domain resources, wake-up or dormancy indication, a frequency hopping indication, an offset for starting the monitoring operation, a time duration or window for the monitoring operation, a number of occasions for the monitoring operation, a number of occasions, a starting occasion, a bitmap to indicate the occasions, or a time gap (e.g., an offset) between the first signal or the second signal and physical downlink control channel (PDCCH) monitoring. In some embodiments, the downlink (DL) control information is applied for the SCell or the SCell group or serving cell or the serving cell group or for all serving cells, or the downlink (DL) control information is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, or the DL control information is applied for monitoring the first signal, or the DL control information is applied for the first signal, and wherein the first signal is associated with or based on one or more SCells or SCell groups or serving cells or the serving cell groups or all serving cells, or the DL control information is applied for the first signal, wherein the first signal is located within or associated with or based on a BWP, or located within or associated with or based on the active BWP of the serving cell, SCell, serving cell group, SCell group, or the DL control information is applied for at least one monitoring space of first signal, wherein the monitoring space is configured with at least one of a periodicity, a duration, a window, occasions, a bitmap, repetition information, time domain resources, frequency domain resources, index, ID, SCells or SCell groups or serving cells or the serving cell groups. In some embodiments, the term “applied” can be replaced as indicates or indicates to the UE.
[0013] In some embodiments, the communication device monitors / receives / detects the first signal or second signal in / for the SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation, and / or the communication device monitors each of the first signal or the second signal in / for the corresponding SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation.
[0014] In some embodiments, an activation or a deactivation is indicated via a bitmap, or a wake-up or dormancy indication is indicated via a bitmap. In some embodiments, the bitmap is configured with one or more bits, or each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, or each bit corresponds to a monitoring space, or each bit corresponds to a first signal, or each bit corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, or 0 or 1 state of each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, corresponds to a monitoring space, or corresponds to a first signal, or corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, or a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured SCell or the SCell group or the serving cell or the serving cell group or for all serving cells in ascending order or a descending order, or wherein a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured monitoring space, first signal, or a BWP, an active BWP, a dormant BWP, a current active BWP in ascending order or a descending order.
[0015] In some embodiments, the configuration in the DL control information is also indicated in radio resource control (RRC) configuration or high layer configuration. In some embodiments, the DL control information indicates an index wherein the index refers to a configuration by RRC or high layer, or the DL control information indicates the RRC or high layer configuration adjustment or change. In some embodiments, the frequency hopping indication indicates the first signal or the second signal may be monitored or transmitted in different frequency location, or the offset for starting the monitoring operation is based on a physical downlink control channel (PDCCH) or an active time or a paging time window (PTW) , or time domain resources comprise any one or more of starting symbols or starting slot or starting occasion, a number of slots and or symbols or occasions, or a bitmap of slots, symbols or occasions, or length of slots, symbols or occasions, or frequency domain resources comprise any one or more of starting physical resource block (PRB) or subcarrier, a number of PRBs or subcarriers, or the bitmap of PRBs or subcarriers, or the activation indicates the communication device to start or resume monitoring first signal or second signal, or the deactivation indicates the communication device to stop monitoring first signal or second signal.
[0016] In some embodiments, the first signal is used for a physical downlink control channel (PDCCH) monitoring with at least a specific search space identifier (ID) or a search space type or specific radio network temporary identifier (RNTI) , or the first signal indicates at least the specific search space ID or a search space type for the PDCCH monitoring, or the first signal is used for the PDCCH monitoring with type 3 PDCCH CSS or USS, or the first signal is used for the PDCCH monitoring wherein the DCI of PDCCH is scrambled by any one or more of: cell radio network temporary identifier (C-RNTI) , cancellation indication RNTI (CI-RNTI) , configured scheduled RNTI (CS-RNTI) , indication pre-emption RNTI (INT-RNTI) , slot format indication RNTI (SFI-RNTI) , semi-persistent channel state information RNTI (SP-CSI-RNTI) , trigger and power control physical uplink control channel RNTI (TPC-PUCCH-RNTI) , trigger and power control physical uplink control channel RNTI (TPC-PUSCH-RNTI) , trigger and power control sounding reference signal RNTI (TPC-SRS-RNTI) , availability indicator RNTI (AI-RNTI) , side link RNTI (SL-RNTI) , or sidelink configured scheduling RNTI (SL-CS-RNTI) , In some embodiments, the term ‘used’ can be replaced as ‘applied’ . In some embodiments, the first signal indicates UE wake-up for PDCCH monitoring wherein the PDCCH monitoring is based on at least a search space ID, at least a specific RNTI, at least a search space type, e.g., type3 PDCCH CSS or USS.
[0017] In some embodiments, the first signal is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, the first signal indicates to the communication device to monitor PDCCH for one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells, the first signal indicates to the communication device to monitor PDCCH for or one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells with a bitmap, the first signal indicates to the communication device to monitor PDCCH in a BWP, or the first signal indicates to the communication device to monitor PDCCH in a BWP with a bitmap, or the first signal is applied for or indicates to the communication device to monitor PDCCH in a corresponding BWP, or corresponding SCell, SCell group, serving cell, serving cell group. In some embodiments, the first signal is the same as that used for the PDCCH monitoring, for the triggering PDCCH monitoring, and for wake-up the UE to monitor PDCCH.
[0018] In some embodiments, the first signal is applied to monitor PDCCH for cell or in BWP with a bitmap, wherein the bitmap is indicated by the DCI or by the first signal.
[0019] In some embodiments, the communication device monitor / receive / detect the first or second signal according to the configuration. the communication device does not perform or stop performing a monitoring or receiving of the first signal based on any one or more condition, or whether the communication device monitors or receive the first signal is based on any one or more condition. In some embodiments, the one or more conditions comprise: during a delay required by the communication device for an active downlink (DL) bandwidth part (BWP) change or for an uplink (UL) BWP change, during an UL transmission or when first signal is overlapping with UL transmission, during a random access channel (RACH) procedure, PRACH transmission, msgA transmission, or msg3 transmission, during a downlink (DL) transmission or when first signal is overlapping with the DL transmission, during a measurement, or during a measurement gap, during a bandwidth part (BWP) switching, in response to the communication device transmitting a physical uplink control channel (PUCCH) providing a positive scheduling request (SR) , or in response to the SR being pending, in response to the communication device transmitting a random access channel (RACH) due to a positive SR, or during a time of a window or a duration when a timer is running. In some embodiments, the configuration comprises a time gap between the first signal and a physical downlink control channel (PDCCH) monitoring or a paging occasion (PO) monitoring, and the time gap is based on a subcarrier spacing (SCS) or a capability of the communication device or wherein the configuration of the time gap is predetermined or predefined or reported by the communication device.
[0020] In some embodiments, the operation of receiving, monitoring, detecting for the communication device are the similar / same or can be replaced by each other.
[0021] In some embodiments, the communication device does not receive or monitor the first signal, the second signal, a synchronization signal block (SSB) , a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , a PRS during the time gap. In some embodiments, the configuration comprises a time gap between a first signal and the second signal, or a time gap from first signal switching to second signal, and wherein the time gap is defined based on a subcarrier spacing (SCS) or the configuration of time gap is predetermined or predefined or reported by the communication device. In some embodiments, the configuration comprises a window or a time gap for measurement based on the second signal. In some embodiments, during the window or the time gap, the communication device does not receive or monitor the first signal. In some embodiments, resources for a transmission of the first signal or the second signal are allocated on two slots or occasions, or the first signal or the second signal are repeated two times in one slot or occasion.
[0022] In some embodiments, the first signal and the second signal have a same cyclic prefix (CP) or a subcarrier spacing (SCS) , or the SCS or the CP of the first signal or the second signal is configured, or the SCS is 15 kHz or 30 kHz, or the first signal and the second signal are assumed to have no extended CP. In some embodiments, a frequency location of the first signal or the second signal is obtained based on or is associated with a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , a synchronization signal block (SSB) , an initial bandwidth part (BWP) , CORESET0, a paging, the BWP where the paging is located, or the BWP with index 0, or the frequency location is obtained based on any one or more of: an reference frequency point, an offset to an reference frequency point, a number of physical resource blocks (PRBs) or subcarriers or continuous PRBs or subcarriers. In some embodiments, the first signal and the second signal have a same center frequency, the first signal and the second signal have a same starting physical resource block (PRB) , the first signal and the second signal have a same number of PRBs, or the first signal and the second signal have different time domain resources that include a number of symbols, slots, repetitions, or beams, or the first signal uses the port number X, and / or second signal uses the port number X, X+1, X-1,
[0023] In some embodiments, the performing the operation comprise any one or more of: in unpaired spectrum or TDD, for resources indicated to the communication device for reception or monitoring of the first signal or the second signal, the communication device does not expect resources to be indicated as uplink resources, in unpaired spectrum or TDD, if the resources are indicated as uplink resources, the communication device does not receive or monitor the first signal or the second signal on the UL resources, or the communication device assume the first signal or second signal transmission is postponed, or the transmission is punctured, or the communication device would skip monitoring in the UL resources.
[0024] In some embodiments, the UL or DL resources means the resources are defined on the UL or DL spectrum, or the UL or DL resources are the UE shall use when transmitting or receiving in the uplink or downlink transmission.
[0025] In some embodiments, the resources include the time domain resources, or frequency domain resources. In some embodiments, the time domain resources are based on one or more of symbols, subframes, slots, frames, hyper-frames, resources elements. The frequency domain resources are based on PRBs, bandwidth, subcarriers, resources elements.
[0026] In yet another exemplary aspect, the above-described methods are embodied in the form of processor-executable code and stored in a non-transitory computer-readable storage medium. The code included in the computer readable storage medium when executed by a processor, causes the processor to implement the methods described in this patent document.
[0027] In yet another exemplary embodiment, a device that is configured or operable to perform the above-described methods is disclosed.
[0028] The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.
[0029] BRIEF DESCRIPTION OF THE DRAWING
[0030] FIG. 1A shows an example diagram of multiple time slots for uplink and / or downlink.
[0031] FIG. 1B shows an example configuration for LP-WUS (wake-up signal) / LP-SS monitoring.
[0032] FIGS. 2A-2B show example beam repetition configurations.
[0033] FIG. 3 shows example of time and frequency gaps between LP-WUSs.
[0034] FIG. 4 shows an example of LP-WUS used for monitoring paging occasion (PO) with an offset.
[0035] FIG. 5 shows an example of measurement gap by LP-SS.
[0036] FIG. 6A shows an example of LP-WUS allocated in two slots.
[0037] FIG. 6B shows an example of LP-WUS allocated in two slots with a preamble.
[0038] FIG. 7 shows an example scenario where the LP-WUS has repetition.
[0039] FIG. 8 shows an example of position of BWP and LP-WUS / LP-SS.
[0040] FIG. 9 shows an exemplary block diagram of a hardware platform that may be a part of a network device or a communication device.
[0041] FIG. 10 shows an example of wireless communication including a base station (BS) and user equipment (UE) based on some implementations of the disclosed technology.
[0042] FIGS. 11-12 show exemplary flowcharts for performing an operation according to a configuration.
[0043] FIG. 13 shows an example of on-off keying (OOK) symbol and OFDM symbol relationship.DETAILED DESCRIPTION
[0044] Low power wake-up receiver may be used to receive low power synchronization signal (LP-SS) , or low power wake up signal (LP-WUS) . The LP-SS / LP-WUS can help a user equipment (UE) to achieve power saving gain. This patent document describes techniques and designs for a new LP-WUS / LP-SS that can achieve power saving gain.
[0045] A low power signal may comprise LP-SS, LP-WUS. The LP-WUS may comprise first LP-WUS and / or second LP-WUS
[0046] ● The first LP-WUS may at least include any one or more of following information: cell specific wake-up, partial cell identifier / identity / identification (ID) information / cell ID information.
[0047] ● The second LP-WUS may at least include subgroup ID indication, or partial cell ID information / cell ID information.
[0048] LP-SS / LP-WUS may operate with multiple beams. For example, the LP-SS / LP-WUS may be transmitted with 1, 2, 4, 8 beams. The LP-WUS is comprised in the first signal. The LP-SS is comprised in the second signal.
[0049] The example headings for the various sections below are used to facilitate the understanding of the disclosed subject matter and do not limit the scope of the claimed subject matter in any way. Accordingly, one or more features of one example section can be combined with one or more features of another example section. Furthermore, 5G terminology is used for the sake of clarity of explanation, but the techniques disclosed in the present document are not limited to 5G technology only and may be used in wireless systems that implemented other protocols. For instance, the techniques described in this patent document can be used for next generation wireless system, future wireless communication system, or 6G that may focus on green communication, integrated AI and communication, integrated sensing and communication.
[0050] I. Embodiment 1: LP-WUS / LP-SS Configuration
[0051] A base station may transmit a configuration for LP-WUS / LP-SS to the UE. The configuration for LP-WUS / LP-SS may comprise any one or more of the following:
[0052] ● A periodicity, for LP-WUS / LP-SS, for monitoring LP-WUS / LP-SS, for monitoring PDCCH after LP-WUS triggering.
[0053] ● A window: a time duration comprises at least one monitoring occasion, LP-WUS occasion, slot, symbol, frame, beam for LP-WUS monitoring. The window could be used for LP-WUS / LP-SS, for monitoring LP-WUS / LP-SS, for monitoring PDCCH after LP-WUS triggering.
[0054] ● A bitmap for LP-WUS / LP-SS: indicate at least one monitoring occasion, LP-WUS occasion, slot, symbol, frame, beam. It may be a bit string or it may be x bits, where each bit indicates whether the monitoring occasion, LP-WUS occasion, slot, symbol, frame, beam may be monitored for LP-WUS. The bitmap could be used for LP-WUS / LP-SS, for monitoring LP-WUS / LP-SS, for monitoring PDCCH after LP-WUS triggering.
[0055] ● A starting occasion or slot or symbol for LP-WUS / LP-SS or LP-SS / LP-WUS monitoring
[0056] ● A number of monitoring occasions, a number of LP-WUS occasions, a number of slots / symbols, or a number of beams for LP-WUS / LP-SS or LP-SS / LP-WUS monitoring
[0057] ● A reference time point for LP-WUS / LP-SS or LP-SS / LP-WUS monitoring: it may be a paging occasion (PO) , it may be a reference slot, reference frame / system frame number (SFN) , reference symbol, reference time domain point.
[0058] ● Beam information for LP-WUS / LP-SS
[0059] ● Repetition information for LP-WUS / LP-SS
[0060] The UE can receive the configuration and may monitor LP-WUS / LP-SS according to above configuration. Some examples are shown as follows:
[0061] Example 1: bitmap indication versus starting occasion + number of occasions
[0062] FIG. 1A shows an example diagram of uplink and / or downlink resources in TDD. Here, length of frame (P) =5ms, sub-carrier spacing (SCS) =30khz, then 5ms contains 10 slots. d_slots=7 means that the first 7 of the 10 slots are downlink slots; u_slots=2 means that the last 2 of the 10 slots are uplink slots; d_sym=6 means that in the 8-th time slot, the first 6 symbols are downlink symbols; u_sym =2 means that the last 2 symbols in the third to last slot (or 8-th slot) are uplink symbols; then the remaining symbols are flexible symbols.
[0063] In this case, the LP-WUS / LP-SS monitoring can be configured as shown in FIG. 1B, . Then the configuration in FIG. 1B can be described as following:
[0064] ● LP-WUS / LP-SS is configured with a periodicity (e.g., 320ms)
[0065] ● During each cycle (determined by periodicity) x1 time window can be configured (e.g., 10ms window)
[0066] ● During each cycle, x2 bits may be used to determine the LP-WUS occasions, monitoring occasions, slots, frames / SFNs, time window (s)
[0067] ■ For example, x2 bits is based on bitmap method, in above figure, x2=20bits for 20slots.
[0068] ■ For example, x2 bits may be based on a starting occasion and a number of occasions, or one a starting slot and a number of slots, more specifically, 3bits used for indicating the starting slot with index 0 to 6, and 2 bits indicates the number of slots, 1, 2, 4, 8. then in this case, 5 bits may be enough. Also, a joint indication may help save more signaling overhead.
[0069] ○ In this case, the starting occasion and the number of occasions is determined by TDD configuration, e.g., the number of DL slots
[0070] ● During each monitoring occasion / slot, x3 bits is used to determine the symbols for LP-WUS transmission
[0071] ■ x3=14 bits e.g., bitmap with 14bit, each bit corresponds to one symbol
[0072] ■ If assume that the LP-WUS occupies at least 7 symbols, then the starting symbol index should be 0 to 7, 3 bits for starting symbol may be enough. And the number of symbols may be 7, 8, 9, 10, 11, 12, 13, 14. Then additional 3 bits may be enough.
[0073] Compared with the bitmap method, using starting occasion+continuous occasions can help save overhead.
[0074] Example 2: the UE may monitor the occasions where possibly there may be LP-WUS / LP-SS transmission.
[0075] In this case, UE monitor a time window with occasions and the NW grantee it may finish the transmission if LP-WUS / LP-SS may be transmitted in this window. Or UE may monitor one or more occasions of the LP-WUS / LP-SS based on a starting location and a number of occasions, where:
[0076] ● all the DL slots are the occasions
[0077] ● all the DL slots are the occasions excluding flexible symbol / slots
[0078] ● All the valid slots / subframes / symbols are the occasions, where valid slots are defined based on DL slots configured by nrofDownlinkSlots, and / or nrofDownlinkSymbols for TDD
[0079] ● Valid resources / slots / subframes may be available resources / slots / subframes.
[0080] ● If the LP-WUS / LP-SS occasion is located / overlapped on the invalid slots / subframes, UE expect / assume that the LP-WUS / LP-SS transmission would be postponed. Or the transmission would do the puncturing or the UE would skip the invalid slots to receive the transmission.
[0081] ● The LP-SS / LP-WUS burst should be on the continuous occasions.
[0082] Example 3: How the beam information of LP-SS / LP-WUS indicated?
[0083] For each LP-WUS occasion / window consisting multiple monitoring occasions, there is a pattern for beam information.
[0084] ● Pattern 1: for each LP-WUS occasion, the beam index is increasing and cycling, e.g., 0, 1, 2, 3, 0, 1, 2, 3.
[0085] ● Pattern 2: the same number of beams as SSB, and increasing and cycling
[0086] ● Pattern3: if there are m monitoring occasions in a LO, it may be configured as {index1, index2, . .. indexm}
[0087] ● Note: above is more like based on example1 wherein the LP-WUS transmission are defined.
[0088] ● A separate parameter to indicate location or not configured.
[0089] ● Above could be a predetermined rule instead of a pattern.
[0090] ● The pattern or rule indicates an order of the beams, the number of beams, locations of the beams, the indexes of the beams, also maybe the window, the time duration, the periodicity, the repetition information, the SCS, the CP or an offset.
[0091] the UE may assume the LP-WUS / LP-SS multiple beams are continuous in DL slots or occasions.
[0092] For each monitoring occasion, there is beam information which is based on the occasion index.
[0093] ● For example, occasion index is numbered as 0~19, the corresponding beam index may be based on Z1 mod m, wherein Z1 is the occasion index and m is the number of beams for LP-WUS / LP-SS / SSB.
[0094] Example 4: How the repetition information and beams information of LP-SS / LP-WUS indicated
[0095] Method 1: each beam repetition first, and then beam information change
[0096] FIG. 2A shows an example of beam and repetition for Method 1 of Example 4. As shown in FIG. 2A, each beam may repeat firstly on occasions. Another implementation may be that based on Z1, m, r to determine the beam information on each occasion wherein Z1 is the occasion index and m is the number of beams for LP-WUS / LP-SS / SSB, r is the repetition number.
[0097] ● For example, maximum Z1=31, r=4, m=4, to determine the beam index.
[0098] For example, Z1=15, r=4, m=4, in this case, which mean the beam index=3.
[0099] Method 2, each beam changes first, and then repetition increase for multiple beams
[0100] FIG. 2B shows an example of beam and repetition for Method 2 of Example 4. As shown in FIG. 2B, each beam may change firstly on occasions. After all the beams transmitted and then repeat the multiple beams transmission.
[0101] Also satisfying: beam index m1, repetition index r1 (1~r=4) , occasion index Z1, m* (r1-1) +m1=Z1
[0102] II. Embodiment 2: DCI Indication
[0103] The DCI used for LP-WUS in this disclosure may be a new DCI format, e.g., DCI format 1-4, 1-5, 2-9, 2-10, 2-11. it may be a group specific DCI, a UE specific DCI. It may be scrambled with a new RNTI, e.g., LP-RNTI, WUS-RNTI, LP-WUS-RNTI.
[0104] DCI is used to activate or deactivate LP-WUS monitoring when the feature is enabled or at least a feature parameter is configured.
[0105] The DCI fields signaling comprising any one or more of the following configurations:
[0106] ● Activation for LP-WUS monitoring
[0107] ● Deactivation for LP-WUS monitoring
[0108] ● Activation for SCell LP-WUS monitoring
[0109] ● Deactivation for SCell LP-WUS monitoring
[0110] ● Indication (e.g., index) for periodicity of LP-WUS monitoring
[0111] ● Repetition times for LP-WUS transmission
[0112] ● Time domain resources, starting symbols / slot, number of slots and or symbols for LP-WUS transmission
[0113] ● Frequency domain resources, starting PRB, number of PRBs for LP-WUS transmission
[0114] ● SCell wake-up / dormancy indication
[0115] ● Frequency hopping for LP-WUS
[0116] ● Offset for starting LP-WUS monitoring
[0117] ● Time duration / window, Number of LP-WUS occasions, a number of LP-WUS monitoring occasions.
[0118] ● Bitmap
[0119] ● Time gap between LP-WUS and physical downlink control channel (PDCCH) monitoring
[0120] In some embodiments, the above-configuration may (or may also) be indicated by LP-WUS also. In this case, when the UE received the configuration of first signal, e.g., activation, the UE may monitor PDCCH based on the corresponding SCell, serving cell, SCell group, serving cell group or all serving cells or BWP. When the UE received the configuration of first signal, e.g., deactivation, the UE may not monitor PDCCH based on the corresponding SCell, serving cell, SCell group, serving cell group or all serving cells or BWP.
[0121] In some embodiments, the above-mentioned configuration may be jointed coded (e.g., any one of the information mentioned above such as activation / deactivation can be jointly coded with another information mentioned above such as frequency hopping, where the jointly coded information can be transmitted using DCI signaling or LP-WUS signaling) , or based on coded point
[0122] In some embodiments, the above-mentioned DCI signaling may be included in DL or UL DCI. In some embodiments, ‘in the serving cell, serving cells, serving cell group, SCell, SCells, or SCell group (s) ’ can be replaced as ‘for the serving cell, serving cells, serving cell group, SCell, SCells, SCell group (s) ’ . In some embodiments, the serving cell comprises serving cells, serving cell group comprises serving cell groups, SCell comprises SCells, or the SCell group comprises SCell groups.
[0123] Example 1: activation and deactivation in connected mode
[0124] LP-WUS activation means after the activation, the UE would monitor LP-WUS. LP-WUS monitoring may be based on a time duration, a periodicity, an offset, defined occasions.
[0125] LP-WUS deactivation means after the deactivation, the UE stop monitoring LP-WUS or would not monitor LP-WUS.
[0126] Example 1-1: activation / deactivation in connected mode or inactive mode General methods:
[0127] ● based on RRC configuration or parameter configuration, the LP-WUS monitoring is activated / enabled.
[0128] ● Based on RRC configuration or parameter configuration, LP-WUS monitoring may be activated by DCI.
[0129] ● MAC CE
[0130] Implementation 1: DCI activate / deactivate LP-WUS monitoring for CA case
[0131] ● DCI indicates the LP-WUS monitoring activation / deactivation for SCell (group) , comprising:
[0132] ■ X bits bitmap to indicate whether at least one SCell (group) is activated to monitor LP-WUS.
[0133] ■ with MSB to LSB of the bitmap corresponding to the first to last configured SCell group in ascending / descending order of configured SCell group
[0134] ■ 1 bit to indicate all the SCells, PCell, whether to monitor LP-WUS.
[0135] ■ Y bits bitmap to indicate whether to activate an active DL BWP or dormant BWP for at least one SCell group.
[0136] ● DCI indicates the LP-WUS monitoring activation / deactivation for a BWP Implementation 2: DCI activate / deactivate LP-WUS monitoring for a BWP
[0137] If the LP-WUS is configured per BWP, then when the UE’a ctive BWP changes, the LP-WUS may need to be monitored or not monitored.
[0138] If the LP-WUS is configured per BWP, then when the UE’a ctive BWP changes, the LP-WUS may need to be monitored or not monitored according to the DCI indication.
[0139] ● 1bit for LP-WUS activation / deactivation
[0140] LP-WUS’s SCS is the same with current active BWP, or associated with a BWP, e.g., active BWP.
[0141] Implementation 3: deactivation in connected / inactive mode
[0142] ● RRC reconfiguration
[0143] ● Time duration.
[0144] ■ LP-WUS has not been received for a time period / duration or before the timer expiration
[0145] ■ UE has been monitoring LP-WUS for a time duration
[0146] ● DCI deactivation. It may be DCI format 0-0, 0-1, 0-2, 0-3, 1-0, 1-1, 1-2, 1-3, 2-6, or 2-X, X>=9
[0147] ● RACH procedure, e.g., msg1 or msg3 transmission
[0148] ● Mac CE
[0149] ● SPS-PDSCH
[0150] ● SRS transmission
[0151] ● CG-PUSCH
[0152] ● PUCCH
[0153] ● PRACH transmission
[0154] ● LP-WUS deactivation
[0155] ● Timer expiration
[0156] ● LP-WUS reception.
[0157] The above conditions or operations may deactivate LP-WUS monitoring.
[0158] Example 1-2: activation / deactivation in idle mode
[0159] Activation:
[0160] ● After SIB configuration or parameter enabled, the LP-WUS monitoring is activated. ● Based on SIB configuration or parameter enabling, LP-WUS monitoring may be activated by some conditions,
[0161] ■ e.g., LP-SS received power, RSSI (received signal strength indicator) , RSRP (reference signal received power) , RSRQ (reference signal received quality) satisfy the threshold, where the threshold is configured by gNB.
[0162] ● Satisfying conditions, e.g., mobility, at the cell center, not at the cell edge Deactivation in idle mode:
[0163] ● Deactivation by paging DCI
[0164] ● By whether satisfying the threshold or conditions
[0165] ● Not Satisfying conditions, e.g., mobility, at the cell center, not at the cell edge
[0166] ● Time duration, time window, timer
[0167] Example 2: DCI that indicates an adjustment to a parameter related to the LP-WUS or DCI indicating LP-WUS related parameter
[0168] Example 1: periodicity, repetition
[0169] 1-1: DCI indicate periodicity without RRC configuring periodicity
[0170] In this case, DCI is mainly used to indicate the periodicity for LP-WUS monitoring
[0171] ● 3bit, 4bits, 5bits, 2bits, 1bit in DCI to indicate the periodicity, based on RRC configuration or not.
[0172] ● DCI indicate an index and it refers to a periodicity.
[0173] ● Periodicity may be at least one of {640ms, 640ms, 320ms, 160ms, 80ms, 40ms, 20ms , 10ms, 5ms, 2.5ms, 1ms}
[0174] 1-2: DCI indicate periodicity with RRC configuring periodicity
[0175] In this case, DCI is mainly used to adjust the LP-WUS monitoring periodicity based on the RRC configuration
[0176] ● RRC configures one periodicity [from a set of periodicity values] , assumed as P1, DCI indicate another periodicity assumed as P2. P1 and P2 satisfying
[0177] ■ P1+offset=P2
[0178] ■ P1*C=P2
[0179] ■ Where the offset may be +, -value. E. g., P1+1=P2 means, a larger or smaller periodicity than P1 from the set is indicated by DCI, and the UE should monitor LP-WUS based on P2.
[0180] ○ For example, the value set is {5, 10, 20, 40} ms, P1=20, offset=1, then P2=40 or 10.
[0181] ■ Where the C is at least one of {1, 1 / 2, 1 / 4, 2 / 4}
[0182] ○ For example, the P1=20ms, C=1 / 2, and P2 may be 10ms.
[0183] Example 1-1 and 1-2 also can be applied for repetitions.
[0184] Example 2: Number of slots and or symbols for LP-WUS transmission
[0185] 2-1: DCI indicate resources without RRC configuring resources
[0186] ● Time domain resources allocation
[0187] ■ At least one of 1 symbol, 4symbols, 7symbols, 10symbols, 14symbols can be selected / indicated by DCI.
[0188] ■ Bitmap method, each bit corresponds to one symbol, 2symbols, 4symbols, 7symbols. Or each bit corresponds to one slot / SFN / frame / subframe
[0189] ■ The starting symbol and number of symbols
[0190] ○ The number of symbols may be indicated by an index
[0191] ● Frequency domain resources allocation
[0192] ● 25RBs for 15KKhz, 11RBs for 30KHz
[0193] ■ Frequency domain resources is assumed to be the same as the number of PRBs as X. X is different from different SCS.
[0194] 2-2: DCI indicate resources with RRC configuring resources
[0195] ● RRC configures the resources, assumed as O1 OFDM symbols, or O2 PRBs
[0196] ■ DCI indicate one of the resource configurations.
[0197] ○ E.g., {2, 7, 10, 14} symbols are configured by RRC, and the DCI indicate one of them, or DC indicate the index wherein the index refers to one of {2, 7, 10, 14}
[0198] ■ DCI adjust the resource allocation based on the RRC configuration.
[0199] ○ RRC configure the number of symbols is O1, after DCI indication, the number of symbols is O3.
[0200] O1+offset=O3
[0201] O1*C=O3
[0202] Example 3: SCell group (s) wake-up / dormancy indication
[0203] Example 3-1: to determine monitoring LP-WUS
[0204] ● 1 bit indicating whether LP-WUS monitoring is applied for all the SCells group (s) , whether LP-WUS monitoring is deactivated for all the SCells group (s)
[0205] ● X bits indicating whether UE should monitor LP-WUS in the SCell group (s) , X<=5
[0206] ■ with MSB to LSB of the bitmap corresponding to the first to last configured SCell group in ascending / descending order.
[0207] ■ each bit corresponds to one of the SCell group (s) configured by higher layers parameter indicating whether (activate / deactivate) monitor LP-WUS in each SCell group (s)
[0208] ● LP-WUS monitoring is assumed to be applied for all the SCells group (s) if any. Example 3-2: to determine monitoring PDCCH by LP-WUS
[0209] ● LP-WUS indicating whether to wake-up SCell group (s) and monitor PDCCH in the Scell group (s)
[0210] ■ 0 bit if higher layer parameter is not configured; otherwise 1, 2, 3, 4 or 5 bits bitmap determined according to the number of different scell group (s) provided by higher layer parameter, where each bit corresponds to one of the SCell group (s) configured by higher layers parameter, with MSB to LSB of the bitmap corresponding to the first to last configured SCell group in ascending / descending order
[0211] ■ LP-WUS may carry SCell group (s) ID information
[0212] Example 4: hopping flag
[0213] ● hopping flag, which is used for activating LP-WUS hopping.
[0214] ● It may be used to activate hopping when repetition is larger than 1 or repetition of LP-WUS field exist. The hopping is based on repetition.
[0215] ● Between each hop or repetition or a block, there is a time gap, wherein a block comprises at least one LP-WUS transmission / occasion. The time gap may be several symbols, or X ms / us.
[0216] ● Between each hop or repetition or a block, there is a frequency gap. The frequency gap may be several PRBs, subcarriers.
[0217] ● The time gap or frequency gap may be different from different SCS
[0218] ● 1 bit hopping flag or 2bits hopping flag
[0219] FIG. 3 shows example of time and frequency gaps between LP-WUSs.
[0220] Example 5: Offset for starting LP-WUS monitoring
[0221] Example 5-1: offset is based on PDCCH
[0222] Offset is based on the end of PDCCH, comprising PDCCH, PDCCH reception, PDCCH monitoring occasion, last symbol of PDCCH.
[0223] Offset is based on number of symbols and / or number of slots.
[0224] Offset has a set of values, DCI indicates one of them.
[0225] Potential offset value {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 40, 80}
[0226] Example 5-2: offset is based on active time
[0227] Offset is based on the end of active time.
[0228] ● When DRX is configured, the Active Time for Serving Cells in a DRX group includes the time while:
[0229] ■ drx-onDurationTimer or drx-InactivityTimer configured for the DRX group is running; or
[0230] ■ drx-RetransmissionTimerDL or drx-RetransmissionTimerUL is running on any Serving Cell in the DRX group; or
[0231] ■ ra-ContentionResolutionTimer or msgB-ResponseWindow is running; or
[0232] ■ a Scheduling Request is sent on PUCCH and is pending; or
[0233] ■ a PDCCH indicating a new transmission addressed to the C-RNTI of the MAC entity has not been received after successful reception of a Random Access Response for the Random Access Preamble not selected by the MAC entity among the contention-based Random Access Preamble.
[0234] ● When DRX is not configured, the active time for Serving Cells in a DRX group includes the time while:
[0235] ■ LP-WUS triggered PDCCH monitoring
[0236] ■ A timer for LP-WUS triggered PDCCH monitoring is running.
[0237] ■ A retransmission timer is running on any Serving Cell, which also depends on the LP-WUS triggering.
[0238] Example 5-3: offset is based on timer, time duration, window
[0239] Example 5-4: LP-WUS triggers PO monitoring PDCCH monitoring for eDRX
[0240] First signal, e.g., LP-WUS triggers PO monitoring, PDCCH monitoring in a PTW or in at least a time duration, a window, an occasion.
[0241] First signal, e.g., LP-WUS triggers PO monitoring, PDCCH monitoring based on timer, time duration, window, occasions
[0242] First signal, e.g., LP-WUS triggers PO monitoring, PDCCH monitoring based on several time duration or windows or occasions. The several time duration or windows or occasions may have a same time gap or offset or interval. The several time duration or windows or occasions are configured within an active time, a time duration or a window. The several time duration or windows or occasions are configured via the bitmap method.
[0243] In some embodiments, the occasions comprise at least one monitoring occasion of first signal, e.g., several monitoring occasions.
[0244] III. Embodiment 3: UE Behavior (s)
[0245] Example 1: LP-WUS monitoring when UL transmission happens
[0246] Example1-1: when the UL transmission comes, the related UE behavior
[0247] When the UL transmission overlaps with LP-WUS / LP-SS, or during the UL transmission, the UE does not need to or does not expect to receive / monitor LP-WUS / LP-SS, or whether to receive / monitor LP-WUS is up to UE implementation or depending one UE capability.
[0248] ● For UE with first capability, during the UL transmission, the UE still can monitor / receive LP-WUS. First capability may refer to that the low power wake-up signal receiver is OFDM receiver.
[0249] ● For UE with default capability or second capability, the UE would not monitor / receive LP-WUS. Second capability may refer to that the low power wake-up signal receiver is OOK receiver.
[0250] For example, when the UE would transmit SRS, PRACH, CG-PUSCH, PUCCH, TC-RNTI scrambled DCI scheduled msg3, the UE does not need to or does not expect to receive / monitor LP-WUS.
[0251] If a UE would transmit a PRACH or MsgA PUSCH triggered by higher layers in a set of symbols and would receive a LP-SS, or a LP-WUS, or is indicated presence of LP-SS in symbols that include any symbol from the set of symbols,
[0252] If a would receive a LP-SS / LP-WUS based on a configuration by higher layers or is indicated presence of LP-SS in a set of symbols, and the UE would transmit PRACH or MsgA PUSCH triggered by higher layers starting or ending at a symbol that is earlier or later than T1 or T1 or T2, respectively, from the last or first symbol in the set of symbols
[0253] ● the UE at least may transmit PRACH or MsgA PUSCH, or
[0254] ● the UE can select based on its implementation whether to either transmit the PRACH or the MsgA PUSCH or receive LP-SS / LP-WUS
[0255] Example 2: LP-WUS used for which search space set / ID or which RNTI
[0256] LP-WUS is used for configured, predetermined kinds of search space for PDCCH monitoring.
[0257] ● A UE can be provided LP-WUS for at least one of Type0-PDCCH CSS, Type0A-PDCCH CSS set, Type0B-PDCCH CSS set, Type1-PDCCH CSS set , Type1A-PDCCH CSS, Type2-PDCCH CSS set, Type3-PDCCH CSS set or USS set for PDCCH monitoring on an active DL BWP of a serving cell.
[0258] ● LP-WUS is not used for Type1-PDCCH CSS set , Type2A-PDCCH CSS set for PDCCH monitoring wake-up.
[0259] ● LP-WUS is used to indicate which search space set is to be waken up for PDCCH monitoring or LP-WUS is sued to indicate the search space ID
[0260] ■ X bits, with MSB to LSB of the bitmap corresponding to the first to last Searchspace ID in ascending / descending order of configured search space ID.
[0261] LP-WUS is used for configured, predetermined kinds of RNTI scrambled PDCCH monitoring.
[0262] ● LP-WUS may be used for wake-up for PDCCH monitoring which is scrambled by C-RNTI, CI-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI, SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, TPC-SRS-RNTI, AI-RNTI, SL-RNTI, SL-CS-RNTI
[0263] ● LP-WUS may be used for wake-up for PDCCH monitoring which is scrambled by SI-RNTI, MCCH-RNTI or a G-RNTI for broadcast, RA-RNTI, a MsgB-RNTI, or a TC-RNTI, P-RNTI, PEI-RNTI
[0264] ● LP-WUS is not used for wake-up for PDCCH monitoring which is scrambled by PEI-RNTI, RA-RNTI, MsgB-RNTI
[0265] Example 3: LP-WUS monitoring during BWP switching
[0266] The UE does not expect receive LP-WUS, during a delay required by the UE for an active DL BWP change or UL BWP change.
[0267] The UE does not expect receive LP-WUS, during a time gap, where the time gap is based on delay required by the UE for an active DL BWP change or UL BWP change or a minimum time gap.
[0268] ● The time gap=Min {delay for BWP change, minimum time gap} or max {delay for BWP change, minimum time gap}
[0269] Whether to receive LP-WUS is up to UE implementation or depends on UE capability during the delay required by the UE for an active DL BWP change or UL BWP change.
[0270] Example 4: LP-WUS monitoring in some scenarios
[0271] SPS:
[0272] When SPS-PDSCH overlap with LP-WUS, the UE is not required to monitor LP-WUS.
[0273] When SPS-PDSCH overlap with LP-WUS, whether UE is to monitor LP-WUS is up to implementation.
[0274] PUCCH, SR (scheduling request)
[0275] If the UE transmits a PUCCH providing a positive SR, or the SR is pending, the UE may monitor PDCCH regardless of LP-WUS is received
[0276] If the UE transmits a PUCCH providing a positive SR or the SR is pending, the UE does not expect to monitor LP-WUS.
[0277] MSG2 window
[0278] During the time of ra-ResponseWindow or msgB-ResponseWindow or the duration where ra-ContentionResolutionTimer is running, the UE may not skip PDCCH monitoring on SpCell regardless of LP-WUS if received.
[0279] During the time of ra-ResponseWindow or msgB-ResponseWindow or the duration where ra-ContentionResolutionTimer is running, the UE is not required to monitor LP-WUS, or whether to monitor LP-WUS is up to UE implementation.
[0280] PRACH
[0281] If UE transmits a RACH due to positive SR, the UE is not required to monitor LP-WUS, or whether to monitor LP-WUS is up to UE implementation, or the UE does not expect to monitor LP-WUS, during the time of ra-ResponseWindow or msgB-ResponseWindow or the duration where ra-ContentionResolutionTimer is running.
[0282] Example 5: LP-WUS monitoring during PDCCH skipping
[0283] During PDCCH skipping duration, the UE can monitor LP-WUS. Once the UE receive the LP-WUS, the UE may monitor PDCCH or the UE resumes PDCCH monitoring, or the UE terminates PDCCH skipping for the serving cell.
[0284] During PDCCH skipping duration, the UE does not monitor LP-WUS.
[0285] Example 6: In TDD, the following UE behavior would be expected
[0286] For operation on a single carrier in unpaired spectrum, for a set of symbols of a slot indicated to a UE for reception / monitoring of LP-WUS / LP-SS, The UE does not expect the set of symbols of the slot to be indicated as uplink by tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, when provided to the UE.
[0287] For a set of symbols of a slot indicated to a UE for reception / monitoring of LP-WUS / LP-SS, if the set of symbols of the slot is indicated as uplink by tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, the UE expect / assume that the LP-WUS / LP-SS transmission would be postponed, Or the transmission is punctured, or the UE would skip monitoring in the slot.
[0288] UE would assume the LP-WUS / LP-SS is transmitted in DL slots / symbols / subframes. UE would assume the LP-SS would be transmitted in continuous DL slots / symbols / subframes.
[0289] The UE assume that the LP-SS and LP-WUS are not overlapped in time domain.
[0290] If a UE is to receive LP-SS / LP-WUS over multiple slots, and if tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, indicate that, for a slot from the multiple slots, at least one symbol from a set of symbols where LP-SS / LP-WUS transmitted in the slot is an uplink symbol, the UE does not receive the LP-SS / LP-WYS in the slot.
[0291] Example 7: some TDD UE behavior implementation
[0292] If a UE is not configured to monitor PDCCH for DCI format 2_0, for a set of symbols of a slot that are indicated as flexible by tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated if provided, or when tdd-UL-DL-ConfigurationCommon and tdd-UL-DL-ConfigurationDedicated are not provided to the UE
[0293] ● the UE receives PDSCH or CSI-RS or LP-WUS in the set of symbols of the slot if the UE receives a corresponding indication by a DCI format
[0294] ● the UE transmits PUSCH, PUCCH, PRACH, or SRS in the set of symbols of the slot if the UE receives a corresponding indication by a DCI format, a RAR UL grant, fallbackRAR UL grant, or successRAR, LP-WUS, LP-SS
[0295] For operation on a single carrier in unpaired spectrum, if a UE is configured by higher layers to receive a PDCCH, or a PDSCH, or a CSI-RS, or a DL PRS or a LP-WUS / LP-SS in a set of symbols of a slot, the UE receives the PDCCH, the PDSCH, the CSI-RS, the DL PRS, or the LP-WUS / LP-SS if the UE does not detect a DCI format that indicates to the UE to transmit a PUSCH, a PUCCH, a PRACH, or a SRS in at least one symbol of the set of symbols of the slot; otherwise, the UE does not receive the PDCCH, or the PDSCH, or the CSI-RS, or the DL PRS or LP-WUS / LP-SS in the set of symbols of the slot.
[0296] For operation on a single carrier in unpaired spectrum, if a UE is configured by higher layers to transmit SRS, or PUCCH, or PUSCH, or PRACH in a set of symbols of a slot and the UE detects a DCI format indicating to the UE to receive CSI-RS or PDSCH or LP-WUS / LP-SS in a subset of symbols from the set of symbols, then
[0297] ● If the UE does not indicate the capability of [partialCancellation] , the UE does not expect to cancel the transmission of the PUCCH or PUSCH or PRACH in the set of symbols if the first symbol in the set occurs within Tproc, 2 relative to a last symbol of a PDCCH reception where the UE detects the DCI format; otherwise, the UE cancels the PUCCH, or the PUSCH, or an actual repetition of the PUSCH, that may be determined, or the PRACH transmission in the set of symbols.
[0298] ● If the UE indicates the capability of [partialCancellation] , the UE does not expect to cancel the transmission of the PUCCH or PUSCH or PRACH in symbols from the set of symbols that occur within Tproc, 2 relative to a last symbol of a PDCCH reception where the UE detects the DCI format. The UE cancels the PUCCH, or the PUSCH, or an actual repetition of the PUSCH, that may be determined, or the PRACH transmission in remaining symbols from the set of symbols.
[0299] ● The UE does not expect to cancel the transmission of SRS in symbols from the subset of symbols that occur within Tproc, 2 relative to a last symbol of a PDCCH reception where the UE detects the DCI format. The UE cancels the SRS transmission in remaining symbols from the subset of symbols.
[0300] · Tproc, 2 is the PUSCH preparation time for the corresponding UE processing capability assuming d2, 1=1 and μ corresponds to the smallest SCS configuration between the SCS configuration of the PDCCH carrying the DCI format and the SCS configuration of the SRS, PUCCH, PUSCH or μr, where μr corresponds to the SCS configuration of the PRACH if it is 15kHz or higher; otherwise μr=0.
[0301] For a set of symbols of a slot that are indicated to a UE as uplink by tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, the UE does not receive PDCCH, PDSCH, or CSI-RS when the PDCCH, PDSCH, or CSI-RS or LP-WUS / LP-SS overlaps, even partially, with the set of symbols of the slot.
[0302] For a set of symbols of a slot that are indicated to a UE as uplink by tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, the UE does not receive DL PRS in the set of symbols of the slot, if the UE is not provided with a measurement gap.
[0303] For a set of symbols of a slot that are indicated to a UE as uplink by tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, the UE does not receive LP-WUS in the set of symbols of the slot, if the UE is not provided LP-WUS / LP-SS within a minimum gap.
[0304] For a set of symbols of a slot corresponding to a valid PRACH (random access) occasion and Ngap symbols before the valid PRACH occasion, the UE does not receive PDCCH, PDSCH, or CSI-RS, LP-WUS / LP-SS in the slot if a reception would overlap with any symbol from the set of symbols. The UE does not expect the set of symbols of the slot to be indicated as downlink by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated.
[0305] If a UE is scheduled by a DCI format to receive PDSCH or LP-WUS over multiple slots, and if tdd-UL-DL-ConfigurationCommon, or tdd-UL-DL-ConfigurationDedicated, indicate that, for a slot from the multiple slots, at least one symbol from a set of symbols where the UE is scheduled PDSCH reception / LP-SS / LP-WUS in the slot is an uplink symbol, the UE does not receive the PDSCH / LP-SS / LP-WUS in the slot.
[0306] If a HD-UE would transmit a PRACH or MsgA PUSCH triggered by higher layers in a set of symbols and would receive a PDCCH, or a PDSCH, or a CSI-RS, or a DL PRS, LP-WUS / LP-SS or is indicated presence of SS / PBCH (synchronization signal, physical broadcast channel) blocks within the active DL BWP by ssb-PositionsInBurst in SIB1 or in ServingCellConfigCommon or by NonCellDefiningSSB in symbols that include any symbol from the set of symbols, the HD-UE can select based on its implementation whether to either transmit the PRACH or the MsgA PUSCH or receive the PDSCH, or the CSI-RS, or the PL RS, or the PDCCH, or the SS / PBCH blocks or LP-WUS / LP-SS.
[0307] If a HD-UE would receive a PDCCH, or a PDSCH, or a CSI-RS, or a DL PRS based on a configuration by higher layers or is indicated presence of SS / PBCH blocks within the active DL BWP by ssb-PositionsInBurst in SIB1 or in ServingCellConfigCommon or by NonCellDefiningSSB in a set of symbols, and the HD-UE would transmit PRACH or MsgA PUSCH triggered by higher layers starting or ending at a symbol that is earlier or later than NRx-Tx·Tc or NTx-Rx·Tc, respectively, from the last or first symbol in the set of symbols, the HD- UE can select based on its implementation whether to either transmit the PRACH or the MsgA PUSCH or receive the PDSCH, or the CSI-RS, or the DL PRS, or the PDCCH, or the SS / PBCH blocks or LP-WUS / LP-SS.
[0308] Example 8: some behaviors when LP-WU / LP-SSS is conflicting with measurement In some embodiments, the UE does not perform a monitoring or receiving of the first signal when the UE is during a measurement or during a measurement gap. Wherein the measurement is based on SSB / PSS / SSS / CSI-RS / PT-RS, PRS / reference signal / SRS
[0309] IV. Embodiment 4: Time Gap
[0310] Example 1: Definition for time gap: a time gap between LP-WUS reception and main radio (MR) to start PDCCH monitoring, a time gap for MR wake-up for monitoring after LP-WUS
[0311] The (minimum) time gap is defined for SCS 15KHZ, 30KHZ, 60KHZ separately, defined for FR1. for different capability, at least one value is defined.
[0312] For capability 2, the value is smaller than capability 1.
[0313] For idle mode, UE only report one value. For connected mode, UE can report at least one value.
[0314] Minimum time gap value between LP-WUS reception and PDCCH monitoring
[0315] If a UE reports a minimum time gap for LP-WUS wake-up, the UE is not required to monitor LP-WUS, PDCCH comprising LP-WUS activation during the minimum time gap after LP-WUS, or before PDCCH monitoring.
[0316] Example1-1: how to configure the time gap in connected mode and inactive mode DCI configures the time gap between LP-WUS and PDCCH monitoring.
[0317] DCI configures the time gap value from a set of values which are configured by RRC It is better to be configured by RRC.
[0318] Time gap configuration is based on SCS. Time gap 1 corresponds to SCS1, time gap2 corresponds to SCS2.
[0319] Example1-2: how to configure the time gap in idle mode
[0320] If gNB knows the minimum time gap between LP-WUS and MR operation, then the time gap may be configured wherein the time gap means the gap between LP-WUS monitoring and PO monitoring.
[0321] Example 2-1: after receiving LP-WUS and the offset, the UE monitors the next or nearest PO.
[0322] Example 2-2: the offset is defined between LP-WUS monitoring and PO / PF monitoring
[0323] Example 2-3: different offset configuration is applied for different minimum time gap capability UE.
[0324] Example 2-4: LP-WUS indication may adjust the offset between LP-WUS and PO monitoring.
[0325] FIG. 4 shows an example of LP-WUS used for monitoring PO with an offset.
[0326] ● The second PO (dynamic PO) location is determined by LP-WUS or predetermined or SIB configured.
[0327] ● Predetermined: the UE with minimum time gap less than Y, the UE may monitor the second PO after the minimum time gap
[0328] ● LP-WUS determination: LP-WUS indicates, there is a second PO for UE to monitor.
[0329] ■ After the minimum time gap and the first PO
[0330] ■ LP-WUS indicate a time gap and after this time gap, UE monitor the second PO.
[0331] ■ 1 bit in LP-WUS indicating whether there is a second PO may be monitored. If indicated as ‘1’ , the UE may monitor the second PO.
[0332] ■ LP-WUS indicate what is the PO index after LP-WUS, e.g., the first one (index=0) , the second one (index=1) . UE may monitor the PO based on PO index indicated by LP-WUS.
[0333] ■ LP-WUS indicate what is the PO index after a time gap, e.g., the first one (index=0) , the second one (index=1) . UE may monitor the PO based on PO index indicated by LP-WUS.
[0334] Example 1-3: the UE behavior related to time gap.
[0335] Example 3-1: UE behavior
[0336] The UE does not expect to receive the configuration of time gap is less than its minimum time gap.
[0337] The UE does not expect to receive the LP-WUS and PDSCH, PDCCH, PRS, during its minimum time gap after LP-WUS.
[0338] The UE does not expect to receive LP-WUS when UL transmission, e.g., PRACH, msg3, PUSCH, PUCCH, SRS is happening.
[0339] The UE whether to receive LP-WUS when UL transmission depends on its UE capability, e.g., PRACH, msg3, PUSCH, PUCCH, SRS is happening, wherein the UE capability is based on the capability of minimum time gap.
[0340] Example 2: definition for time gap: a time gap between LP-SS and LP-WUS switching.
[0341] For WUR1, e.g., on-off keying (OOK) receiver, the LP-WUS and LP-SS are configured flexible. No need to define a gap since LP-WUS and LP-SS in the same bandwidth.
[0342] For WUR2, e.g., OFDM receiver, the LP-WUS and PSS / SSS / SSB may be configured at different frequency location. In this case, if the UE return to PSS / SSS / SSB for measurement, the UE is not expected to receive LP-WUS during the measurement, or during the time gap for measurement, and or a minimum time gap during LP-SS and LP-WUS switching time.
[0343] FIG. 5 shows an example of measurement gap by LP-SS.
[0344] The UE is not expected to receive LP-WUS during the switching time gap, the measurement gap, or window.
[0345] WUR retuning / switch delay
[0346] If the LP-WUS SS is different from SSB, CORESET0, MIB, the WUR retuning / switch delay is based on maximum SCS or minimum SCS.
[0347] V. Embodiment 5: Time-Frequency Resources
[0348] LP-WUS time domain resources
[0349] For one LP-WUS transmission, the resources may be allocated on two slots. FIG. 6A shows an example of LP-WUS allocated in two slots. FIG. 6B shows an example of LP-WUS allocated in two slots with a preamble.
[0350] In TDD, UE does not expect that the two slots for LP-WUS are not continuous / adjacent slots.
[0351] FIG. 7 shows an example scenario where the LP-WUS has repetition. In one slot, the LP-WUS may repeat with two times transmission. All the transmissions may be continuous, or continuous in valid slots / symbols.
[0352] The supported TBS of LP-WUS is A multiple of 4. e.g., 4, 8, 16, 24
[0353] LP-WUS frequency domain resources
[0354] Configurations in idle mode:
[0355] SCS and CP:
[0356] In idle mode, the SCS or CP of LP-WUS / LP-SS is the same as initial BWP or CORESET0 or paging or BWP where paging locates, BWP with ID=0..
[0357] In idle mode, the SCS or CP of LP-WUS / LP-SS is configured by gNB with 15KHz or 30KHz, with 15KHZ, 30KHZ, or 60KHz.
[0358] In idle mode, the CP is assumed as No extended CP.
[0359] The LP-WUS and LP-WU has the same CP and / or SCS.
[0360] Frequency resources
[0361] Example1:
[0362] The frequency location is obtained based on or is associated with PSS / SSS / SSB, initial BWP or CORESET0 or paging or BWP where paging locates.
[0363] ● For example, the starting PRB is based on PSS / SSS / SSB, initial BWP or CORESET0 or paging or BWP where paging locates. Or an offset may be configured to indicate the starting position.
[0364] ● The number of PRBs is configured by gNB.
[0365] ● The value of the field may be interpreted as resource indicator value (RIV) , wherein RIV is based on a starting position, e.g., (virtual) resource block and a length in terms of contiguously allocated resources, e.g., resource blocks
[0366] The frequency location is obtained based on the SCS of the LP-WUS / LP-SS, and offsetToCarrier (configured in SCS-SpecificCarrier contained within FrequencyInfoDL / FrequencyInfoUL / FrequencyInfoUL-SIB / FrequencyInfoDL-SIB within ServingCellConfigCommon / ServingCellConfigCommonSIB) corresponding to this subcarrier spacing.
[0367] ● Wherein offsetToCarrier Indicates the offset in frequency domain between Point A (lowest subcarrier of common RB 0) and the lowest usable subcarrier on this carrier in number of PRBs (using the subcarrierSpacing indicated for the non-serving cell) .
[0368] The frequency location is obtained based on a reference frequency point, e.g., absoluteFrequencyPointA
[0369] Based on above, the LP-SS / LP-WUS location may be outside the BWP, or overlapped with one BWP, also may be within one BWP. The configuration is separate.
[0370] FIG. 8 shows an example of position of BWP and LP-WUS / LP-SS.
[0371] The LP-SS and LP-WUS has the same center frequency.
[0372] The LP-SS and LP-WUS has the same starting PRB.
[0373] The LP-SS and LP-WUS has the same number of PRBs.
[0374] The LP-SS and LP-WUS has different time domain resources, e.g., number of symbols / slots, repetitions, beams.
[0375] There is an offset in time domain between LP-SS and LP-WUS, and the offset value is no less than the minimum time gap between LP-SS and PSS / SSS / LP-WUS switching.
[0376] Example2:
[0377] In some cases, in connected mode, some configurations of BWP may be reused / based on for LP-WUS / LP-SS. And the location of LP-WUS / LP-SS in within the BWP.
[0378] In connected mode, the SCS of LP-WUS / LP-SS is the same as active BWP.
[0379] In connected mode, The CP is determined based on the configuration of BWP, e.g., the CP length, extended CP or not.
[0380] For the BWP, the first PRB is a PRB determined by subcarrierSpacing of this BWP and offsetToCarrier (configured in SCS-SpecificCarrier contained within FrequencyInfoDL / FrequencyInfoUL / FrequencyInfoUL-SIB / FrequencyInfoDL-SIB within ServingCellConfigCommon / ServingCellConfigCommonSIB) corresponding to this subcarrier spacing.
[0381] For LP-WUS / LP-SS, the configuration comprises the frequency resource allocation indicating the starting PRB and the number of PRBs or subcarriers. The starting PRB is the same as the BWP or is based on the BWP’s first PRB. The number of PRBs is indicated by a parameter.
[0382] In some cases, in connected mode, some configurations may be separately configured. E.g., SCS, CP, frequency resources. Also may be within a separate BWP comprising: SCS, CP and frequency resources.
[0383] If LP-WUS is configured within one BWP, in TDD or unpaired spectrum, the LP-WUS may be located in DL BWP with an ID and NO corresponding UL BWP is allocated with the same ID.
[0384] LP-WUS is configured per BWP, the activation may be based on RRC configuration or BWP switching.
[0385] LP-WUS is configured per UE, the activation may be based on RRC configuration.
[0386] LP-WUS indication for CA
[0387] 1 bit in LP-WUS to indicate wake-up for all the serving cells to monitor PDCCH
[0388] 1 bit in LP-WUS to indicate wake-up for all the serving cells to start C-DRX duration timer to monitor PDCCH for the next long DRX cycle
[0389] 1 bit in LP-WUS to indicate wake-up for all the serving cells to start C-DRX duration timer to monitor PDCCH for the next long DRX cycle or short DRX cycle if any.
[0390] X bits, e.g., bitmap, in LP-WUS to indicate whether to wake-up for PDCCH monitoring for a target serving Cells (group) including PCell and SCells (group) .
[0391] X bits, e.g., bitmap, in LP-WUS to indicate whether to wake-up for PDCCH monitoring for a target SCell (group) .
[0392] ● where each bit corresponds to one of the SCell group (s) configured by higher layers parameter
[0393] LP-SS
[0394] The LP-SS consist of preambles, for different M, the attached samples or sequences may be different.
[0395] For M=1, the sequence is S.
[0396] For M=2, the sequence is S+S1, wherein S1 is an attached ON-off sequence.
[0397] For M=4, the sequence is S+S2 or S+S1+S1, wherein S1 or S2 is an attached ON-off sequence
[0398] VI. Embodiment 6: Other Issues
[0399] Port number for LP-SS and LP-WUS
[0400] LP-SS uses the port number X, and / or LP-WUS uses the port number X, X+1, X-1, where X may be 4000, 5000, 6000, 7000, 8000
[0401] RSRP based on LP-SS / preamble of LP-WUS
[0402] LP-SS reference signal received power (LPSS-RSRP) is defined as the linear average over the power contributions (in [W] ) of the OOK-ON chips.
[0403] FIG. 13 shows an example of OOK symbol and OFDM symbol relationship. One chip could be one OOK symbol. One OFDM symbol includes one or more chips or OOK symbols. If the chip or OOK symbols is with high level, it can be called OOK-ON symbol, otherwise, it is OOK-OFF symbol.
[0404] LP-SS reference signal received power (LPSS-RSRP) is defined as the linear average over the power contributions (in [W] ) of the OFDM symbols that carry LP-SS.
[0405] LP-SS reference signal received power (LPSS-RSRP) is defined as the linear average over the power contributions (in [W] ) of the OFDM symbols that carry LP-SS except only carrying OOK-off chips.
[0406] LP-WUS is used to indicate is for triggering PDCCH monitoring based on a C-DRX or is based on time duration or number of PDCCH occasions.
[0407] There are some reserved bits in LP-WUS.
[0408] FIG. 9 shows an exemplary block diagram of a hardware platform 900 that may be a part of a communication node or a network device (e.g., base station) or a communication device (e.g., a user equipment (UE) ) . The hardware platform 900 includes at least one processor 910 and a memory 905 having instructions stored thereupon. The instructions upon execution by the processor 910 configure the hardware platform 900 to perform the operations described in FIGS. 1 to 8 and 10 to 13 and in the various embodiments described in this patent document. The transmitter 915 transmits or sends information or data to another device. For example, a network device transmitter can send a message to a user equipment. The receiver 920 receives information or data transmitted or sent by another device. For example, a user equipment can receive a message from a network device.
[0409] The implementations as discussed above will apply to a wireless communication. FIG. 10 shows an example of a wireless communication system (e.g., a 5G or NR cellular network) that includes a base station 1020 and one or more user equipment (UE) 1011, 1012 and 1013. In some embodiments, the UEs access the BS (e.g., the network) using a communication link to the network (sometimes called uplink direction, as depicted by dashed arrows 1031, 1032, 1033) , which then enables subsequent communication (e.g., shown in the direction from the network to the UEs, sometimes called downlink direction, shown by arrows 1041, 1042, 1043) from the BS to the UEs. In some embodiments, the BS send information to the UEs (sometimes called downlink direction, as depicted by arrows 1041, 1042, 1043) , which then enables subsequent communication (e.g., shown in the direction from the UEs to the BS, sometimes called uplink direction, shown by dashed arrows 1031, 1032, 1033) from the UEs to the BS. The UE may be, for example, a smartphone, a tablet, a mobile computer, a machine to machine (M2M) device, an Internet of Things (IoT) device, and so on.
[0410] FIG. 11 shows an exemplary flowchart for performing an operation according to a configuration. Operation 1102 includes determining, by a communication device, a configuration related to a first signal or a second signal. In some embodiments, the determining includes receiving the configuration. Operation 1104 includes performing, by the communication device, an operation according to the configuration. In some embodiments, the performing the operation includes monitoring to receive the LP-WUS or monitoring to receive a PDCCH according to the configuration.
[0411] In some embodiments, the first signal includes any one or more of following: the first signal is a wake-up signal, the first signal indicates the communication device to wake-up, the first signal indicates the communication device to monitor a physical downlink control channel (PDCCH) , the first signal indicates the communication device to trigger a PDCCH monitoring, the first signal indicates a subgroup identifier (ID) information, and / or the first signal is transmitted with 1, 2, 4 or 8 beams. In some embodiments, the second signal includes any one or more of following: the second signal is a sync signal; the second signal comprises a low-power synchronization signal, a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , or a synchronization signal block (SSB) , the second signal is used for synchronization or measurement, the second signal is transmitted with 1, 2, 4, or 8 beams, and / or the second signal is monitored in a window or gap.
[0412] In some embodiments, the configuration includes any one or more of: a periodicity, a window, a time duration, a bitmap, a starting occasion or slot or symbol, a number of occasions, a number of slots or symbols, or a number of beams, a reference time point, a pattern, a subcarrier spacing (SCS) , a cyclic prefix (CP) , beam information, or repetition information.
[0413] In some embodiments, the communication device (or the UE) performs the operation according to the configuration. In some embodiments, the communication device (or the UE) monitors / receives the first signal or second signal according to the one or more of at least a periodicity, at least a windows, at least a time duration, at least a bitmap, at least a starting occasion or slot or symbol, at least a number of occasions, a number of slots or symbols, or a number of beams, at least a reference time point, at least a pattern, at least a subcarrier spacing (SCS) , a cyclic prefix (CP) , beam information, or repetition information. In some embodiments, the configuration includes: a first periodicity for the first signal and a second periodicity for the second signal for the communication device in an idle or an inactive state, a time window or a time duration comprises at least one occasion, occasion is defined based on one or more time units, slots, symbols (e.g., OFDM symbols, OOK chips, or OOK symbols) , frames, beams, or repetitions, or based on a window, a time duration, or a length, a bitmap that indicates one or more occasions for the first signal or the second signal, a bitmap that includes one or more bits, wherein each bit corresponds to an occasion, a window, or a time duration for the first signal or the second signal, a reference time point includes a paging occasion (PO) , a reference slot, a reference frame or a system frame number (SFN) , a reference symbol, a reference time domain point, or a pattern, wherein the pattern comprises at least one of a periodicity, a window, a time duration, a bitmap, beam information, repetition information, a subcarrier spacing (SCS) , a cyclic prefix (CP) . In some embodiments, the reference time point is a time location for determining monitoring the first signal.
[0414] In some embodiments, the occasions, the window, the periodicity, the time duration, the beams, or repetition are based on valid resources, and the valid resources are based on downlink (DL) slots, DL symbols, DL subframes, or system frame number (SFN) , or configuration in Time Division Duplexing (TDD) , or in unpaired spectrum. In some embodiments, at least one window, one time duration, or one occasion is within one cycle, and the one cycle is determined by the periodicity or is same as periodicity. In some embodiments, the beam information is based on a pattern or a predetermined rule, and the pattern or the predetermined rule indicates an order of the beams, the number of beams, locations of the beams, the indexes of the beams, the window, the time duration, the periodicity, the repetition information, the SCS, the CP or an offset, or the beam information includes beam index information for an occasion, a number of beams, the periodicity, the offset, the window or the time duration. In some embodiments, the repetition information and the beam information indicate that multiple beams with a same beam index or information are repeated on N continuous occasions, or the repetition information and the beam information indicate that the multiple beams with the same beam index or information are repeated on every N or N-1 occasions, where N is a repetition number determined by repetition information.
[0415] In some embodiments, the configuration comprise a downlink (DL) control information that includes any one or more of the following: an activation indication, an deactivation indication, a periodicity, a repetition indication, time domain resources, frequency domain resources, wake-up or dormancy indication, a frequency hopping indication, an offset for starting the monitoring operation, a time duration or window for the monitoring operation, a number of occasions for the monitoring operation, a number of occasions, a starting occasion, a bitmap to indicate the occasions, or a time gap (e.g., an offset) between the first signal or the second signal and physical downlink control channel (PDCCH) monitoring. In some embodiments, the downlink (DL) control information is applied for the SCell or the SCell group or serving cell or the serving cell group or for all serving cells, or the downlink (DL) control information is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, or the DL control information is applied for monitoring the first signal, or the DL control information is applied for the first signal, and wherein the first signal is associated with or based on one or more SCells or SCell groups or serving cells or the serving cell groups or all serving cells, or the DL control information is applied for the first signal, wherein the first signal is located within or associated with or based on a BWP, or located within or associated with or based on the active BWP of the serving cell, SCell, serving cell group, SCell group, or the DL control information is applied for at least one monitoring space of first signal, wherein the monitoring space is configured with at least one of a periodicity, a duration, a window, occasions, a bitmap, repetition information, time domain resources, frequency domain resources, index, ID, SCells or SCell groups or serving cells or the serving cell groups. In some embodiments, the term “applied” can be replaced as indicates or indicates to the UE.
[0416] In some embodiments, the communication device monitors the first signal or second signal for the SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation, and the communication device monitors each of the first signal or the second signal in the corresponding SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation.
[0417] In some embodiments, an activation or a deactivation is indicated via a bitmap, or a wake-up or dormancy indication is indicated via a bitmap. In some embodiments, the bitmap is configured with one or more bits, or each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, or each bit corresponds to a monitoring space, or each bit corresponds to a first signal, or each bit corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, or 0 or 1 state of each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, corresponds to a monitoring space, or corresponds to a first signal, or corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, or a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured SCell or the SCell group or the serving cell or the serving cell group or for all serving cells in ascending order or a descending order, or wherein a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured monitoring space, first signal, or a BWP, an active BWP, a dormant BWP, a current active BWP in ascending order or a descending order.
[0418] In some embodiments, the configuration in the DL control information is also indicated in radio resource control (RRC) configuration or high layer configuration. In some embodiments, the DL control information indicates an index wherein the index refers to a configuration by RRC or high layer, or the DL control information indicates the RRC or high layer configuration adjustment or change. In some embodiments, the frequency hopping indication indicates the first signal or the second signal may be monitored or transmitted in different frequency location, or the offset for starting the monitoring operation is based on a physical downlink control channel (PDCCH) or an active time, or time domain resources comprise any one or more of starting symbols or starting slot or starting occasion, a number of slots and or symbols or occasions, or a bitmap of slots, symbols or occasions, or length of slots, symbols or occasions, or frequency domain resources comprise any one or more of starting physical resource block (PRB) or subcarrier, a number of PRBs or subcarriers, or the bitmap of PRBs or subcarriers, or the activation indicates the communication device to start or resume monitoring first signal or second signal, or the deactivation indicates the communication device to stop monitoring first signal or second signal.
[0419] In some embodiments, the first signal is used for a physical downlink control channel (PDCCH) monitoring with at least a specific search space identifier (ID) or a search space type or specific radio network temporary identifier (RNTI) , or the first signal indicates at least the specific search space ID or a search space type for the PDCCH monitoring, or the first signal is used for the PDCCH monitoring with type 3 PDCCH CSS or USS, or the first signal is used for the PDCCH monitoring wherein the DCI of PDCCH is scrambled by any one or more of: cell radio network temporary identifier (C-RNTI) , cancellation indication RNTI (CI-RNTI) , configured scheduled RNTI (CS-RNTI) , indication pre-emption RNTI (INT-RNTI) , slot format indication RNTI (SFI-RNTI) , semi-persistent channel state information RNTI (SP-CSI-RNTI) , trigger and power control physical uplink control channel RNTI (TPC-PUCCH-RNTI) , trigger and power control physical uplink control channel RNTI (TPC-PUSCH-RNTI) , trigger and power control sounding reference signal RNTI (TPC-SRS-RNTI) , availability indicator RNTI (AI-RNTI) , side link RNTI (SL-RNTI) , or sidelink configured scheduling RNTI (SL-CS-RNTI) , the first signal is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, the first signal indicates to the communication device to monitor PDCCH for one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells, the first signal indicates to the communication device to monitor PDCCH for or one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells with a bitmap, the first signal indicates to the communication device to monitor PDCCH in a BWP, or the first signal indicates to the communication device to monitor PDCCH in a BWP with a bitmap. In some embodiments, the first signal is the same as that used for the PDCCH monitoring, for the triggering PDCCH monitoring, and for wake-up the UE to monitor PDCCH.
[0420] In some embodiments, the communication device does not perform a monitoring or receiving of the first signal based on any one or more condition, or whether the communication device monitors or receive the first signal is based on any one or more condition. In some embodiments, the one or more conditions comprise: during a delay required by the communication device for an active downlink (DL) bandwidth part (BWP) change or for an uplink (UL) BWP change, during an UL transmission or when first signal is overlapping with UL transmission, during a random access channel (RACH) procedure, PRACH transmission, msgA transmission, or msg3 transmission, during a downlink (DL) transmission or when first signal is overlapping with the DL transmission, during a measurement, or during a measurement gap, during a bandwidth part (BWP) switching, in response to the communication device transmitting a physical uplink control channel (PUCCH) providing a positive scheduling request (SR) , or in response to the SR being pending, in response to the communication device transmitting a random access channel (RACH) due to a positive SR, or during a time of a window or a duration when a timer is running. In some embodiments, the configuration comprises a time gap between the first signal and a physical downlink control channel (PDCCH) monitoring or a paging occasion (PO) monitoring, and the time gap is based on a subcarrier spacing (SCS) or a capability of the communication device or wherein the configuration of the time gap is predetermined or predefined or reported by the communication device.
[0421] In some embodiments, the communication device does not receive or monitor the first signal, the second signal, a synchronization signal block (SSB) , a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , a PRS during the time gap. In some embodiments, the configuration comprises a time gap between a first signal and the second signal, or a time gap from first signal switching to second signal, and wherein the time gap is defined based on a subcarrier spacing (SCS) or the configuration of time gap is predetermined or predefined or reported by the communication device. In some embodiments, the configuration comprises a window or a time gap for measurement based on the second signal. In some embodiments, during the window or the time gap, the communication device does not receive or monitor the first signal. In some embodiments, resources for a transmission of the first signal or the second signal are allocated on two slots or occasions, or the first signal or the second signal are repeated two times in one slot or occasion.
[0422] In some embodiments, the first signal and the second signal have a same cyclic prefix (CP) or a subcarrier spacing (SCS) , or the SCS or the CP of the first signal or the second signal is configured, or the SCS is 15 kHz or 30 kHz, or the first signal and the second signal are assumed to have no extended CP. In some embodiments, a frequency location of the first signal or the second signal is obtained based on or is associated with a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , a synchronization signal block (SSB) , an initial bandwidth part (BWP) , CORESET0, a paging, the BWP where the paging is located, or the BWP with index 0, or the frequency location is obtained based on any one or more of: an reference frequency point, an offset to an reference frequency point, a number of physical resource blocks (PRBs) or subcarriers or continuous PRBs or subcarriers. In some embodiments, the first signal and the second signal have a same center frequency, the first signal and the second signal have a same starting physical resource block (PRB) , the first signal and the second signal have a same number of PRBs, or the first signal and the second signal have different time domain resources that include a number of symbols, slots, repetitions, or beams, or the first signal uses the port number X, and / or second signal uses the port number X, X+1, X-1,
[0423] In some embodiments, the performing the operation comprise any one or more of: in unpaired spectrum or TDD, for resources indicated to the communication device for reception or monitoring of the first signal or the second signal, the communication device does not expect resources to be indicated as uplink resources, in unpaired spectrum or TDD, if the resources are indicated as uplink resources, the communication device does not receive or monitor the first signal or the second signal on the UL resources, or the communication device assume the first signal or second signal transmission is postponed, or the transmission is punctured, or the communication device would skip monitoring in the UL resources.
[0424] FIG. 12 shows another exemplary flowchart for performing an operation according to the configuration. Operation 1202 includes transmitting, by a communication node, a configuration related to a first signal or a second signal. Operation 1204 includes performing, by the communication node, an operation according to the configuration. In some embodiments, the performing the operation includes transmitting the LP-WUS or transmitting a PDCCH according to the configuration.
[0425] In some embodiments, the first signal includes any one or more of following: the first signal is a wake-up signal, the first signal indicates the communication device to wake-up, the first signal indicates the communication device to monitor a physical downlink control channel (PDCCH) , the first signal indicates the communication device to trigger a PDCCH monitoring, the first signal indicates a subgroup identifier (ID) information, and / or the first signal is transmitted with 1, 2, 4 or 8 beams. In some embodiments, the second signal includes any one or more of following: the second signal is a sync signal; the second signal comprises a low-power synchronization signal, a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , or a synchronization signal block (SSB) , the second signal is used for synchronization or measurement, the second signal is transmitted with 1, 2, 4, or 8 beams, and / or the second signal is monitored in a window or gap.
[0426] In some embodiments, the configuration includes any one or more of: a periodicity, a window, a time duration, a bitmap, a starting occasion or slot or symbol, a number of occasions, a number of slots or symbols, or a number of beams, a reference time point, a pattern, a subcarrier spacing (SCS) , a cyclic prefix (CP) , beam information, or repetition information.
[0427] In some embodiments, the communication device (or the UE) performs the operation according to the configuration. In some embodiments, the communication device (or the UE) monitors / receives the first signal or second signal according to the one or more of at least a periodicity, at least a windows, at least a time duration, at least a bitmap, at least a starting occasion or slot or symbol, at least a number of occasions, a number of slots or symbols, or a number of beams, at least a reference time point, at least a pattern, at least a subcarrier spacing (SCS) , a cyclic prefix (CP) , beam information, or repetition information. In some embodiments, the configuration includes: a first periodicity for the first signal and a second periodicity for the second signal for the communication device in an idle or an inactive state, a time window or a time duration comprises at least one occasion, occasion is defined based on one or more time units, slots, symbols (e.g., OFDM symbols, OOK chips, or OOK symbols) , frames, beams, or repetitions, or based on a window, a time duration, or a length, a bitmap that indicates one or more occasions for the first signal or the second signal, a bitmap that includes one or more bits, wherein each bit corresponds to an occasion, a window, or a time duration for the first signal or the second signal, a reference time point includes a paging occasion (PO) , a reference slot, a reference frame or a system frame number (SFN) , a reference symbol, a reference time domain point, or a pattern, wherein the pattern comprises at least one of a periodicity, a window, a time duration, a bitmap, beam information, repetition information, a subcarrier spacing (SCS) , a cyclic prefix (CP) . In some embodiments, the reference time point is a time location for determining monitoring the first signal.
[0428] In some embodiments, the occasions, the window, the periodicity, the time duration, the beams, or repetition are based on valid resources, and the valid resources are based on downlink (DL) slots, DL symbols, DL subframes, or system frame number (SFN) , or configuration in Time Division Duplexing (TDD) , or in unpaired spectrum. In some embodiments, at least one window, one time duration, or one occasion is within one cycle, and the one cycle is determined by the periodicity or is same as periodicity. In some embodiments, the beam information is based on a pattern or a predetermined rule, and the pattern or the predetermined rule indicates an order of the beams, the number of beams, locations of the beams, the indexes of the beams, the window, the time duration, the periodicity, the repetition information, the SCS, the CP or an offset, or the beam information includes beam index information for an occasion, a number of beams, the periodicity, the offset, the window or the time duration. In some embodiments, the repetition information and the beam information indicate that multiple beams with a same beam index or information are repeated on N continuous occasions, or the repetition information and the beam information indicate that the multiple beams with the same beam index or information are repeated on every N or N-1 occasions, where N is a repetition number determined by repetition information.
[0429] In some embodiments, the configuration comprise a downlink (DL) control information that includes any one or more of the following: an activation indication, an deactivation indication, a periodicity, a repetition indication, time domain resources, frequency domain resources, wake-up or dormancy indication, a frequency hopping indication, an offset for starting the monitoring operation, a time duration or window for the monitoring operation, a number of occasions for the monitoring operation, a number of occasions, a starting occasion, a bitmap to indicate the occasions, or a time gap (e.g., an offset) between the first signal or the second signal and physical downlink control channel (PDCCH) monitoring. In some embodiments, the downlink (DL) control information is applied for the SCell or the SCell group or serving cell or the serving cell group or for all serving cells, or the downlink (DL) control information is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, or the DL control information is applied for monitoring the first signal, or the DL control information is applied for the first signal, and wherein the first signal is associated with or based on one or more SCells or SCell groups or serving cells or the serving cell groups or all serving cells, or the DL control information is applied for the first signal, wherein the first signal is located within or associated with or based on a BWP, or located within or associated with or based on the active BWP of the serving cell, SCell, serving cell group, SCell group, or the DL control information is applied for at least one monitoring space of first signal, wherein the monitoring space is configured with at least one of a periodicity, a duration, a window, occasions, a bitmap, repetition information, time domain resources, frequency domain resources, index, ID, SCells or SCell groups or serving cells or the serving cell groups. In some embodiments, the term “applied” can be replaced as indicates or indicates to the UE.
[0430] In some embodiments, the communication device monitors the first signal or second signal for the SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation, and the communication device monitors each of the first signal or the second signal in the corresponding SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation.
[0431] In some embodiments, an activation or a deactivation is indicated via a bitmap, or a wake-up or dormancy indication is indicated via a bitmap. In some embodiments, the bitmap is configured with one or more bits, or each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, or each bit corresponds to a monitoring space, or each bit corresponds to a first signal, or each bit corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, or 0 or 1 state of each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, corresponds to a monitoring space, or corresponds to a first signal, or corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, or a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured SCell or the SCell group or the serving cell or the serving cell group or for all serving cells in ascending order or a descending order, or wherein a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured monitoring space, first signal, or a BWP, an active BWP, a dormant BWP, a current active BWP in ascending order or a descending order.
[0432] In some embodiments, the configuration in the DL control information is also indicated in radio resource control (RRC) configuration or high layer configuration. In some embodiments, the DL control information indicates an index wherein the index refers to a configuration by RRC or high layer, or the DL control information indicates the RRC or high layer configuration adjustment or change. In some embodiments, the frequency hopping indication indicates the first signal or the second signal may be monitored or transmitted in different frequency location, or the offset for starting the monitoring operation is based on a physical downlink control channel (PDCCH) or an active time, or time domain resources comprise any one or more of starting symbols or starting slot or starting occasion, a number of slots and or symbols or occasions, or a bitmap of slots, symbols or occasions, or length of slots, symbols or occasions, or frequency domain resources comprise any one or more of starting physical resource block (PRB) or subcarrier, a number of PRBs or subcarriers, or the bitmap of PRBs or subcarriers, or the activation indicates the communication device to start or resume monitoring first signal or second signal, or the deactivation indicates the communication device to stop monitoring first signal or second signal.
[0433] In some embodiments, the first signal is used for a physical downlink control channel (PDCCH) monitoring with at least a specific search space identifier (ID) or a search space type or specific radio network temporary identifier (RNTI) , or the first signal indicates at least the specific search space ID or a search space type for the PDCCH monitoring, or the first signal is used for the PDCCH monitoring with type 3 PDCCH CSS or USS, or the first signal is used for the PDCCH monitoring wherein the DCI of PDCCH is scrambled by any one or more of: cell radio network temporary identifier (C-RNTI) , cancellation indication RNTI (CI-RNTI) , configured scheduled RNTI (CS-RNTI) , indication pre-emption RNTI (INT-RNTI) , slot format indication RNTI (SFI-RNTI) , semi-persistent channel state information RNTI (SP-CSI-RNTI) , trigger and power control physical uplink control channel RNTI (TPC-PUCCH-RNTI) , trigger and power control physical uplink control channel RNTI (TPC-PUSCH-RNTI) , trigger and power control sounding reference signal RNTI (TPC-SRS-RNTI) , availability indicator RNTI (AI-RNTI) , side link RNTI (SL-RNTI) , or sidelink configured scheduling RNTI (SL-CS-RNTI) , the first signal is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, the first signal indicates to the communication device to monitor PDCCH for one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells, the first signal indicates to the communication device to monitor PDCCH for or one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells with a bitmap, the first signal indicates to the communication device to monitor PDCCH in a BWP, or the first signal indicates to the communication device to monitor PDCCH in a BWP with a bitmap. In some embodiments, the first signal is the same as that used for the PDCCH monitoring, for the triggering PDCCH monitoring, and for wake-up the UE to monitor PDCCH.
[0434] In some embodiments, the communication device does not perform a monitoring or receiving of the first signal based on any one or more condition, or whether the communication device monitors or receive the first signal is based on any one or more condition. In some embodiments, the one or more conditions comprise: during a delay required by the communication device for an active downlink (DL) bandwidth part (BWP) change or for an uplink (UL) BWP change, during an UL transmission or when first signal is overlapping with UL transmission, during a random access channel (RACH) procedure, PRACH transmission, msgA transmission, or msg3 transmission, during a downlink (DL) transmission or when first signal is overlapping with the DL transmission, during a measurement, or during a measurement gap, during a bandwidth part (BWP) switching, in response to the communication device transmitting a physical uplink control channel (PUCCH) providing a positive scheduling request (SR) , or in response to the SR being pending, in response to the communication device transmitting a random access channel (RACH) due to a positive SR, or during a time of a window or a duration when a timer is running. In some embodiments, the configuration comprises a time gap between the first signal and a physical downlink control channel (PDCCH) monitoring or a paging occasion (PO) monitoring, and the time gap is based on a subcarrier spacing (SCS) or a capability of the communication device or wherein the configuration of the time gap is predetermined or predefined or reported by the communication device.
[0435] In some embodiments, the communication device does not receive or monitor the first signal, the second signal, a synchronization signal block (SSB) , a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , a PRS during the time gap. In some embodiments, the configuration comprises a time gap between a first signal and the second signal, or a time gap from first signal switching to second signal, and wherein the time gap is defined based on a subcarrier spacing (SCS) or the configuration of time gap is predetermined or predefined or reported by the communication device. In some embodiments, the configuration comprises a window or a time gap for measurement based on the second signal. In some embodiments, during the window or the time gap, the communication device does not receive or monitor the first signal. In some embodiments, resources for a transmission of the first signal or the second signal are allocated on two slots or occasions, or the first signal or the second signal are repeated two times in one slot or occasion.
[0436] In some embodiments, the first signal and the second signal have a same cyclic prefix (CP) or a subcarrier spacing (SCS) , or the SCS or the CP of the first signal or the second signal is configured, or the SCS is 15 kHz or 30 kHz, or the first signal and the second signal are assumed to have no extended CP. In some embodiments, a frequency location of the first signal or the second signal is obtained based on or is associated with a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , a synchronization signal block (SSB) , an initial bandwidth part (BWP) , CORESET0, a paging, the BWP where the paging is located, or the BWP with index 0, or the frequency location is obtained based on any one or more of: an reference frequency point, an offset to an reference frequency point, a number of physical resource blocks (PRBs) or subcarriers or continuous PRBs or subcarriers. In some embodiments, the first signal and the second signal have a same center frequency, the first signal and the second signal have a same starting physical resource block (PRB) , the first signal and the second signal have a same number of PRBs, or the first signal and the second signal have different time domain resources that include a number of symbols, slots, repetitions, or beams, or the first signal uses the port number X, and / or second signal uses the port number X, X+1, X-1,
[0437] In some embodiments, the performing the operation comprise any one or more of: in unpaired spectrum or TDD, for resources indicated to the communication device for reception or monitoring of the first signal or the second signal, the communication device does not expect resources to be indicated as uplink resources, in unpaired spectrum or TDD, if the resources are indicated as uplink resources, the communication device does not receive or monitor the first signal or the second signal on the UL resources, or the communication device assume the first signal or second signal transmission is postponed, or the transmission is punctured, or the communication device would skip monitoring in the UL resources.
[0438] In this document the term “exemplary” is used to mean “an example of” and, unless otherwise stated, does not imply an ideal or a preferred embodiment.
[0439] Some of the embodiments described herein are described in the general context of methods or processes, which may be implemented in one embodiment by a computer program product, embodied in a computer-readable medium, including computer-executable instructions, such as program code, executed by computers in networked environments. A computer-readable medium may include removable and non-removable storage devices including, but not limited to, Read Only Memory (ROM) , Random Access Memory (RAM) , compact discs (CDs) , digital versatile discs (DVD) , etc. Therefore, the computer-readable media can include a non-transitory storage media. Generally, program modules may include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. Computer-or processor-executable instructions, associated data structures, and program modules represent examples of program code for executing steps of the methods disclosed herein. The particular sequence of such executable instructions or associated data structures represents examples of corresponding acts for implementing the functions described in such steps or processes.
[0440] Some of the disclosed embodiments can be implemented as devices or modules using hardware circuits, software, or combinations thereof. For example, a hardware circuit implementation can include discrete analog and / or digital components that are, for example, integrated as part of a printed circuit board. Alternatively, or additionally, the disclosed components or modules can be implemented as an Application Specific Integrated Circuit (ASIC) and / or as a Field Programmable Gate Array (FPGA) device. Some implementations may additionally or alternatively include a digital signal processor (DSP) that is a specialized microprocessor with an architecture optimized for the operational needs of digital signal processing associated with the disclosed functionalities of this application. Similarly, the various components or sub-components within each module may be implemented in software, hardware or firmware. The connectivity between the modules and / or components within the modules may be provided using any one of the connectivity methods and media that is known in the art, including, but not limited to, communications over the Internet, wired, or wireless networks using the appropriate protocols.
[0441] While this document contains many specifics, these should not be construed as limitations on the scope of an invention that is claimed or of what may be claimed, but rather as descriptions of features specific to particular embodiments. Certain features that are described in this document in the context of separate embodiments can also be implemented in combination in a single embodiment. Conversely, various features that are described in the context of a single embodiment can also be implemented in multiple embodiments separately or in any suitable sub-combination. Moreover, although features may be described above as acting in certain combinations and even initially claimed as such, one or more features from a claimed combination can in some cases be excised from the combination, and the claimed combination may be directed to a sub-combination or a variation of a sub-combination. Similarly, while operations are depicted in the drawings in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results.
[0442] Only a few implementations and examples are described and other implementations, enhancements and variations can be made based on what is described and illustrated in this disclosure.
Claims
1.A wireless communication method, comprising:determining, by a communication device, a configuration related to a first signal or a second signal; andperforming, by the communication device, an operation according to the configuration.2.The method of claim 1, wherein the first signal includes any one or more of following:the first signal is a wake-up signal,the first signal indicates the communication device to wake-up,the first signal indicates the communication device to monitor a physical downlink control channel (PDCCH) ,the first signal indicates the communication device to trigger a PDCCH monitoring,the first signal indicates a subgroup identifier (ID) information, and / or the first signal is transmitted with 1, 2, 4 or 8 beams.3.The method of claim 1, wherein the second signal includes any one or more of following:the second signal is a sync signal;the second signal comprises a low-power synchronization signal, a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , or a synchronization signal block (SSB) ,the second signal is used for synchronization or measurement,the second signal is transmitted with 1, 2, 4, or 8 beams, and / orthe second signal is monitored in a window or gap.4.The method of claim 1, wherein the configuration includes any one or more of:a periodicity,a window,a time duration,a bitmap,a starting occasion or slot or symbol,a number of occasions, a number of slots or symbols, or a number of beams,a reference time point,a pattern,a subcarrier spacing (SCS) ,a cyclic prefix (CP) ,beam information, orrepetition information.5.The method of any one of claims 1 or 4, wherein the configuration includes:a first periodicity for the first signal and a second periodicity for the second signal for the communication device in an idle or an inactive state,a time window or a time duration comprises at least one occasion,occasion is defined based on one or more time units, slots, symbols, frames, beams, or repetitions, or based on a window, a time duration, or a length,a bitmap that indicates one or more occasions for the first signal or the second signal,a bitmap that includes one or more bits, wherein each bit corresponds to an occasion, a window, or a time duration for the first signal or the second signal,a reference time point includes a paging occasion (PO) , a reference slot, a reference frame or a system frame number (SFN) , a reference symbol, a reference time domain point, ora pattern, wherein the pattern comprises at least one of a periodicity, a window, a time duration, a bitmap, beam information, repetition information, a subcarrier spacing (SCS) , a cyclic prefix (CP) .6.The method of claim 4,wherein the occasions, the window, the periodicity, the time duration, the beams,or repetition are based on valid resources, andwherein the valid resources are based on downlink (DL) slots, DL symbols, DL subframes, or system frame number (SFN) , or configuration in Time Division Duplexing (TDD) , or in unpaired spectrum.7.The method of claim 4,wherein at least one window, one time duration, or one occasion is within one cycle, andwherein the one cycle is determined by the periodicity or is same as periodicity.8.The method of claim 4,wherein the beam information is based on a pattern or a predetermined rule, andwherein the pattern or the predetermined rule indicates an order of the beams, the number of beams, locations of the beams, the indexes of the beams, the window, the time duration, the periodicity, the repetition information, the SCS, the CP or an offset, orwherein the beam information includes beam index information for an occasion, a number of beams, the periodicity, the offset, the window or the time duration.9.The method of claim 4,wherein the repetition information and the beam information indicate that multiple beams with a same beam index or information are repeated on N continuous occasions, orwherein the repetition information and the beam information indicates that the multiple beams with the same beam index or information are repeated on every N or N-1 occasions,wherein N is a repetition number determined by repetition information.10.The method of claim 1,wherein the configuration comprise a downlink (DL) control information that includes any one or more of the following:an activation indication,an deactivation indication,a periodicity,a repetition indication,time domain resources,frequency domain resources,wake-up or dormancy indication,a frequency hopping indication,an offset for starting a monitoring operation,a time duration or window for the monitoring operation,a number of occasions for the monitoring operation,a number of occasions,a starting occasion,a bitmap to indicate the occasions, ora time gap between the first signal or the second signal and physical downlink control channel (PDCCH) monitoring.11.The method of claim 10,wherein the downlink (DL) control information is applied for the SCell or the SCell group or serving cell or the serving cell group or for all serving cells, orwherein the downlink (DL) control information is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells, orwherein the DL control information is applied for monitoring the first signal, orwherein the DL control information is applied for the first signal, and wherein the first signal is associated with or based on one or more SCells or SCell groups or serving cells or the serving cell groups or all serving cells, orwherein the DL control information is applied for the first signal, wherein the first signal is located within or associated with or based on a BWP, or located within or associated with or based on the active BWP of the serving cell, SCell, serving cell group, SCell group, orwherein the DL control information is applied for at least one monitoring space of first signal, wherein the monitoring space is configured with at least one of a periodicity, a duration, a window, occasions, a bitmap, repetition information, time domain resources, frequency domain resources, index, ID, SCells or SCell groups or serving cells or the serving cell groups.12.The method of claim 10,wherein the communication device monitors the first signal or second signal for the SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation, andwherein the communication device monitors each of the first signal or the second signal in the corresponding SCell or the SCell group or serving cell or the serving cell group or all serving cells according to the configuration or activation.13.The method of claim 10,wherein an activation or a deactivation is indicated via a bitmap, orwherein a wake-up or dormancy indication is indicated via a bitmap.14.The method of claim 13,wherein the bitmap is configured with one or more bits, orwherein each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, or each bit corresponds to a monitoring space, or each bit corresponds to a first signal, or each bit corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, orwherein 0 or 1 state of each bit corresponds to a SCell or a SCell group or a serving cell or a serving cell group or for all serving cells, corresponds to a monitoring space, or corresponds to a first signal, or corresponds to a BWP, an active BWP, a dormant BWP, a current active BWP, orwherein a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured SCell or the SCell group or the serving cell or the serving cell group or for all serving cells in ascending order or a descending order, or wherein a most significant bit (MSB) to a least significant bit (LSB) of the bitmap corresponds to a first to a last configured monitoring space, first signal, or a BWP, an active BWP, a dormant BWP, a current active BWP in ascending order or a descending order.15.The method of claim 10, wherein the configuration in the DL control information is also indicated in radio resource control (RRC) configuration or high layer configuration.16.The method of claim 15, wherein the DL control information indicates an index wherein the index refer to a configuration by RRC or high layer, or the DL control information indicates the RRC or high layer configuration adjustment or change.17.The method of claim 10,wherein the frequency hopping indication indicates the first signal or the second signal may be monitored or transmitted in different frequency location, orwherein the offset for starting the monitoring operation is based on a physical downlink control channel (PDCCH) or an active time, orwherein time domain resources comprise any one or more of starting symbols or starting slot or starting occasion, a number of slots and or symbols or occasions, or a bitmap of slots, symbols or occasions, or length of slots, symbols or occasions, orwherein frequency domain resources comprise any one or more of starting physical resource block (PRB) or subcarrier, a number of PRBs or subcarriers, or the bitmap of PRBs or subcarriers, orwherein the activation indicates the communication device to start or resume monitoring first signal or second signal, orwherein the deactivation indicates the communication device to stop monitoring first signal or second signal.18.The method of claim 1,wherein the first signal is used for a physical downlink control channel (PDCCH) monitoring with at least a specific search space identifier (ID) or a search space type or specific radio network temporary identifier (RNTI) , orthe first signal indicates at least the specific search space ID or a search space type for the PDCCH monitoring, orthe first signal is used for the PDCCH monitoring with type 3 PDCCH CSS or USS, orthe first signal is used for the PDCCH monitoring wherein the DCI of PDCCH is scrambled by any one or more of:cell radio network temporary identifier (C-RNTI) ,cancellation indication RNTI (CI-RNTI) ,configured scheduled RNTI (CS-RNTI) ,indication pre-emption RNTI (INT-RNTI) ,slot format indication RNTI (SFI-RNTI) ,semi-persistent channel state information RNTI (SP-CSI-RNTI) ,trigger and power control physical uplink control channel RNTI (TPC-PUCCH-RNTI) ,trigger and power control physical uplink control channel RNTI (TPC-PUSCH-RNTI) ,trigger and power control sounding reference signal RNTI (TPC-SRS-RNTI) ,availability indicator RNTI (AI-RNTI) ,side link RNTI (SL-RNTI) , orsidelink configured scheduling RNTI (SL-CS-RNTI) ,wherein the first signal is applied for one or more SCells or SCell groups or serving cells or the serving cell groups, or is applied for all serving cells,wherein the first signal indicates to the communication device to monitor PDCCH for one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells,wherein the first signal indicates to the communication device to monitor PDCCH for or one or more SCells or SCell groups or serving cells or the serving cell groups, or all serving cells with a bitmap,wherein the first signal indicates to the communication device to monitor PDCCH in a BWP,wherein the first signal indicates to the communication device to monitor PDCCH in a BWP with a bitmap, orwherein the first signal is applied for or indicates to the communication device to monitor PDCCH in a corresponding BWP, or corresponding SCell, Scell group, serving cell, serving cell group.19.The method of claim 1,wherein the communication device does not perform a monitoring or receiving of the first signal based on any one or more condition, orwherein whether the communication device monitors or receive the first signal is based on any one or more condition.20.The method of claim 19 wherein the one or more conditions comprise:during a delay required by the communication device for an active downlink (DL) bandwidth part (BWP) change or for an uplink (UL) BWP change,during an UL transmission or when first signal is overlapping with UL transmission,during a random access channel (RACH) procedure, PRACH transmission, msgA transmission, or msg3 transmission,during a downlink (DL) transmission or when first signal is overlapping with the DL transmission,during a measurement, or during a measurement gap,during a bandwidth part (BWP) switching,in response to the communication device transmitting a physical uplink control channel (PUCCH) providing a positive scheduling request (SR) , or in response to the SR being pending,in response to the communication device transmitting a random access channel (RACH) due to a positive SR, orduring a time of a window or a duration when a timer is running.21.The method of claim 1,wherein the configuration comprises a time gap between the first signal and a physical downlink control channel (PDCCH) monitoring or a paging occasion (PO) monitoring, andwherein the time gap is based on a subcarrier spacing (SCS) or a capability of the communication device or wherein the configuration of the time gap is predetermined or predefined or reported by the communication device.22.The method of claim 21, wherein the communication device does not receive or monitor the first signal, the second signal, a synchronization signal block (SSB) , a physical downlink control channel (PDCCH) , a physical downlink shared channel (PDSCH) , a PRS during the time gap.23.The method of claim 1, wherein the configuration comprises a time gap between a first signal and the second signal, or a time gap from first signal switching to second signal, and wherein the time gap is defined based on a subcarrier spacing (SCS) or the configuration of time gap is predetermined or predefined or reported by the communication device.24.The method of claim 1, wherein the configuration comprises a window or a time gap for measurement based on the second signal.25.The method of claim 24, wherein during the window or the time gap, the communication device does not receive or monitor the first signal.26.The method of claim 1,wherein resources for a transmission of the first signal or the second signal are allocated on two slots or occasions, orwherein the first signal or the second signal are repeated two times in one slot or occasion.27.The method of claim 1,wherein the first signal and the second signal have a same cyclic prefix (CP) or a subcarrier spacing (SCS) , orwherein the SCS or the CP of the first signal or the second signal is configured, orwherein the SCS is 15 kHz or 30 kHz, orwherein the first signal and the second signal are assumed to have no extended CP.28.The method of claim 1,wherein a frequency location of the first signal or the second signal is obtained based on or is associated with a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , a synchronization signal block (SSB) , an initial bandwidth part (BWP) , CORESET0, a paging, the BWP where the paging is located, or the BWP with index 0, orwherein the frequency location is obtained based on any one or more of: an reference frequency point, an offset to an reference frequency point, a number of physical resource blocks (PRBs) or subcarriers or continuous PRBs or subcarriers.29.The method of claim1,wherein the first signal and the second signal have a same center frequency,wherein the first signal and the second signal have a same starting physical resource block (PRB) ,wherein the first signal and the second signal have a same number of PRBs, orwherein the first signal and the second signal have different time domain resources that include a number of symbols, slots, repetitions, or beams, orwherein the first signal uses the port number X, and / or second signal uses the port number X, X+1, X-1,30.The method of claim 1, wherein the performing the operation comprise any one or more of:in unpaired spectrum or TDD, for resources indicated to the communication device for reception or monitoring of the first signal or the second signal, the communication device does not expect resources to be indicated as uplink resources,in unpaired spectrum or TDD, if the resources are indicated as uplink resources, the communication device does not receive or monitor the first signal or the second signal on the UL resources, or the communication device assume the first signal or second signal transmission is postponed, or the transmission is punctured, or the communication device would skip monitoring in the UL resources.31.A wireless communication method, comprising:transmitting, by a communication node, a configuration related to a first signal or a second signal; andperforming, by the communication node, an operation according to the configuration.32.The method of claim 31, wherein the first signal includes any one or more of following:the first signal is a wake-up signal,the first signal indicates the communication device to wake-up,the first signal indicates the communication device to monitor a physical downlink control channel (PDCCH) ,the first signal indicates the communication device to trigger a PDCCH monitoring,the first signal indicates a subgroup identifier (ID) information, and / orthe first signal is transmitted with 1, 2, 4 or 8 beams.33.The method of claim 31, wherein the second signal includes any one or more of following:the second signal is a sync signal;the second signal comprises a low-power synchronization signal, a primary synchronization signal (PSS) , a secondary synchronization signal (SSS) , or a synchronization signal block (SSB) ,the second signal is used for synchronization or measurement,the second signal is transmitted with 1, 2, 4, or 8 beams, and / orthe second signal is monitored in a window or gap.34.The method of claim 31, wherein the configuration includes any one or more of:a periodicity,a window,a time duration,a bitmap,a starting occasion or slot or symbol,a number of occasions, a number of slots or symbols, or a number of beams,a reference time point,a pattern,a subcarrier spacing (SCS) ,a cyclic prefix (CP) ,beam information, orrepetition information.35.The method of any one of claims 31 or 34, wherein the configuration includes:a first periodicity for the first signal and a second periodicity for the second signal for the communication device in an idle or an inactive state,a time window or a time duration comprises at least one occasion,occasion is defined based on one or more time units, slots, symbols, frames, beams, or repetitions, or based on a window, a time duration, or a length,a bitmap that indicates one or more occasions for the first signal or the second signal,a bitmap that includes one or more bits, wherein each bit corresponds to an occasion, a window, or a time duration for the first signal or the second signal,a reference time point includes a paging occasion (PO) , a reference slot, a reference frame or a system frame number (SFN) , a reference symbol, a reference time domain point, ora pattern, wherein the pattern comprises at least one of a periodicity, a window, a time duration, a bitmap, beam information, repetition information, a subcarrier spacing (SCS) , a cyclic prefix (CP) .36.An apparatus for wireless communication comprising a processor, configured to implement a method recited in one or more of claims 1 to 35.37.A non-transitory computer readable program storage medium having code stored thereon, the code, when executed by a processor, causing the processor to implement a method recited in one or more of claims 1 to 35.
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