Method, device and computer program product for wireless communication
LP-WUS methods and systems address the inefficiencies in 5G UE power management by utilizing offset-based monitoring occasions to trigger optimized power-saving behaviors, enhancing power efficiency through controlled channel monitoring and switching operations.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- ZTE CORP
- Filing Date
- 2024-11-08
- Publication Date
- 2026-05-15
AI Technical Summary
The application of Low-Power Wake-Up Signal (LP-WUS) in 5G communication for User Equipment (UE) power saving is still a topic of discussion, and there is a need for efficient methods and systems to utilize LP-WUS for triggering behaviors such as monitoring control channels, switching bandwidth parts (BWP), carriers, and cell activation/deactivation, and managing timers.
The implementation of LP-WUS methods and systems that include receiving and transmitting wake-up signals with specific offset-based monitoring occasions to trigger UE behaviors like monitoring control channels, switching BWPs, carriers, activating/deactivating RRC configurations, and managing timers, utilizing LP-WUS indications for subgroup and paging information to optimize power management.
Enhances UE power saving by efficiently managing power consumption through optimized LP-WUS-based behaviors, including timely monitoring and switching operations, thereby improving power efficiency and reducing unnecessary power usage.
Smart Images

Figure CN2024131036_15052026_PF_FP_ABST
Abstract
Description
METHOD, DEVICE AND COMPUTER PROGRAM PRODUCT FOR WIRELESS COMMUNICATION
[0001] This document is directed generally to wireless communications, and in particular to 5th generation (5G) communications or 6th generation (6G) communications.
[0002] In 5G communication, the Low-Power Wake-Up Signal (LP-WUS) is used for the User Equipment (UE) power saving. However, the application of the LP-WUS is still a topic to be discussed.
[0003] This document relates to methods, systems, and computer program products for a wireless communication.
[0004] One aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: receiving, by a wireless communication terminal from a wireless communication node, a low power wake-up signal, LP-WUS, on one or more monitoring occasions, MOs, according to at least an offset; and performing, by the wireless communication terminal, a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.
[0005] Another aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: transmitting, by a wireless communication node to a wireless communication terminal a low power wake-up signal, LP-WUS, corresponding to one or more monitoring occasions, MOs, according to at least an offset to trigger the wireless communication terminal performing a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.
[0006] Another aspect of the present disclosure relates to a wireless communication terminal. In an embodiment, the wireless communication terminal includes a communication unit and a processor. The processor is configured for: receiving, via the communication unit from a wireless communication node, a low power wake-up signal, LP-WUS, on one or more monitoring occasions, MOs, according to at least an offset; and performing a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.
[0007] Another aspect of the present disclosure relates to a wireless communication node. In an embodiment, the wireless communication node includes a communication unit and a processor. The processor is configured to: transmitting, via the communication unit to a wireless communication terminal a low power wake-up signal, LP-WUS, corresponding to one or more monitoring occasions, MOs, according to at least an offset to trigger the wireless communication terminal performing a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.
[0008] Various embodiments may preferably implement the following features:
[0009] Preferably, the LP-WUS indicates one or more subgroups, and at least one of the following is satisfied:
[0010] different range via an LP-WUS indication corresponds to different number of subgroups;
[0011] different indication values in a range corresponding to different subgroup indexes;
[0012] an LP-WUS indication comprises at least one of subgroup indication information, paging occasion, PO, indication information, paging frame, PF, indication information, grouping information of subgroups for one or more POs and / or PFs;
[0013] an LP-WUS indication comprises X1 MSB bits ‘0’s, 1 bit ‘1’ , and X2 LSB bits for subgroup indication information or subgroup index;
[0014] an LP-WUS indication comprises an offset, X2 LSB bits for subgroup indication information or subgroup index;
[0015] based on different configured number of subgroups, the LP-WUS comprises X1 MSB bits ‘0’s, 1 bit ‘1’ , X2 LSB bits for subgroup indication information or subgroup index;
[0016] based on different configured number of subgroups, the LP-WUS comprises an offset, and X2 LSB bits for subgroup indication information or subgroup index;
[0017] an LP-WUS indication value is determined based on at least one of a starting subgroup index, a number of subgroups, a maximum number of subgroups per PO, a number of POs, a number of PFs, a PO index, a PF index, a number of groups, a group index, or a payload size of the LP-WUS, wherein the LP-WUS payload size is 6, 7, 8 or 9 bits.
[0018] Preferably, the LP-WUS indicates one or more subgroups, and at least one of the following is satisfied:
[0019] a value range between 0 and C (N, 1) -1 corresponds to one subgroup;
[0020] a value range between C (N, 1) and C (N, 1) +C (N, 2) -1 corresponds to two subgroups, where C is a combination function, and N denotes a number of subgroups per PO;
[0021] the LP-WUS with all ‘1’s or ‘0’s corresponds to all subgroups for one or more POs;
[0022] a value range corresponding to i subgroups is between wherein m is 2^x, x>=0, and x is an integer, and 2^n corresponds to a number of subgroups per PO;
[0023] the LP-WUS indication value is obtained based on; or
[0024] the LP-WUS indication value is or wherein h is a starting subgroup index, i is a number of subgroups indicated by the LP-WUS, i=2^j, L=n+1, and a number of subgroups per PO is 2^n.
[0025] Preferably, the LP-WUS comprises subgroup indication information and PO and / or PF indication information, and at least one of the following is satisfied:
[0026] in response to the PO and / or PF indication information indicates a first value, the subgroup indication information indicates all subgroups for one or more POs or one or more PFs;
[0027] in response to the PO and / or PF indication information indicates a second value or other value than a first value, the subgroup indication field corresponds to one or more subgroups for one PO or one PF;
[0028] in response to the subgroup indication information is a first value, the PO and / or PF indication information indicates all subgroups for one or more POs or one or more PFs;
[0029] in response to the subgroup indication field is a second value or other value than first value, the PO and / or PF indication information indicates a PO index;
[0030] subgroup indication information is determined by a filed in the LP-WUS; or
[0031] PO and / or PF indication information is determined by a field in the LP-WUS.
[0032] Preferably, at least one of the following is satisfied:
[0033] the LP-WUS with all 0s indicates all subgroups for all POs in one or more PFs;
[0034] the LP-WUS with all 0s indicates all subgroups for one or more POs;
[0035] the LP-WUS with all 0s indicates all subgroups for one or more POs in a PF;
[0036] 6 bits in the LP-WUS with 000001 indicates 32 subgroups;
[0037] 6 bits in the LP-WUS with 00001x indicates 16 subgroups;
[0038] 6 bits in the LP-WUS with 0001xx indicates 8 subgroups;
[0039] 6 bits in the LP-WUS with 001xxx indicates 4 subgroups;
[0040] 6 bits in the LP-WUS with 01xxxx indicates 2 subgroups; or
[0041] 6 bits in the LP-WUS with 1xxxxx indicates 1 subgroup,
[0042] wherein x is 0 or 1.
[0043] Preferably, the LP-WUS comprises PO indication information, wherein at least one of the following is satisfied:
[0044] the PO indication information corresponds to at least one of :
[0045] a first PO,
[0046] a first PO and second PO,
[0047] a first PO, second PO, and third PO, or
[0048] a first PO, second PO, third PO and fourth PO; or
[0049] the PO indication information is 1 or 2 LSB or MSB of the LP-WUS; or
[0050] the PO indication information comprises a number of POs or PO indexes.
[0051] Preferably, the LP-WUS comprises grouping information of subgroups for one or more POs and / or PFs, wherein at least one of the following is satisfied:
[0052] the grouping information comprises 1or 2 LSB or MSB of the LP-WUS;
[0053] the grouping information indicates 1, 2, or 4 groups; or
[0054] the grouping information corresponds to a group of subgroups.
[0055] Preferably, the wireless communication terminal performing the behavior comprises at least one of:
[0056] starting the timer but not monitoring the control channel;
[0057] starting the timer for monitoring the control channel;
[0058] starting the timer;
[0059] monitoring the control channel;
[0060] monitoring the control channel associated to an initial DL BWP with CD-SSB;
[0061] monitoring the control channel associated to an active BWP; or
[0062] monitoring a paging control channel.
[0063] Preferably, at least one of the following is satisfied,
[0064] when one bit in the LP-WUS indicates ‘1’ , or 2 bits in the LP-WUS indicates ‘11’ , ‘10’ , ‘01’ for one or more groups of cells, the wireless communication terminal starts the timer;
[0065] when one bit in the LP-WUS indicates ‘0’ , or two bits in the LP-WUS indicates ‘00’ , ‘10’ , ‘01’ for one or more groups of cells, the wireless communication terminal starts the timer and not monitors the control channel;
[0066] when the LP-WUS indicates a wake-up for one or more groups of cells, the wireless communication terminal starts the timer; or
[0067] when the LP-WUS indicates a wake-up for one or more groups of cells, the wireless communication terminal starts the timer and does not monitor the control channel.
[0068] Preferably, at least one of the following is satisfied:
[0069] the wireless communication terminal reports the LP-WUS to a higher layer before starting the timer;
[0070] one or more groups of cells comprise one or more groups of carriers, Scells, or serving cells, or one or more DRX groups of serving cells; or
[0071] the one bit in the LP-WUS is a LSB or MSB or two bits in the LP-WUS are LSBs or MSBs.
[0072] Preferably, at least one of the following is satisfied:
[0073] in response to a periodicity for the LP-WUS is the same as a long Discontinuous Reception, DRX, cycle, the LP-WUS is used to trigger a starting of a first timer;
[0074] in response to a periodicity for the LP-WUS is shorter than a long Discontinuous Reception, DRX, cycle, the LP-WUS is used to trigger a starting of a second timer;
[0075] in response to a periodicity for the LP-WUS is shorter than a long DRX cycle, and a Radio Resource Control, RRC, configuration indicates that a first timer is not triggered by the LP-WUS, the LP-WUS is used to trigger a starting of the second timer;
[0076] in response to a periodicity for the LP-WUS is shorter than a long DRX cycle, and a Radio Resource Control, RRC, configuration indicate that a first timer can be triggered by the LP-WUS, the LP-WUS is used to trigger a starting of the second timer or a first timer;
[0077] if a second timer is configured, the LP-WUS is used to trigger a starting of the second timer, or a first timer according to an RRC indication and / or LP-WUS location;
[0078] a first feature corresponding to a periodicity is the same as a DRX cycle, wherein the first feature associates with a first timer; or
[0079] a second feature corresponding to a periodicity is no larger than a DRX cycle, wherein the second feature associates with a second timer.
[0080] Preferably, the first timer is triggered by the LP-WUS in a nearest LP-WUS monitoring window or in one or more MOs near to a starting of the first timer, or in a configured time duration, time window, and / or one or more monitoring occasions before the starting of the first timer.
[0081] Preferably, the wireless communication terminal is configured with one, two, or more monitoring spaces for the LP-WUS, and at least one of the following is satisfied:
[0082] a monitoring space is associated or configured with a first timer and / or second timer;
[0083] a monitoring space is associated or configured with a Transmission Configuration Indication, TCI, state;
[0084] a monitoring space is associated or configured with a window, or one or more monitoring occasions;
[0085] a monitoring space is associated or configured with frequency resources for the LP-WUS;
[0086] a monitoring space is associated or configured with a monitoring space ID;
[0087] a monitoring space is associated or configured with a type;
[0088] a monitoring space is associated or configured with a periodicity; or
[0089] a monitoring space is associated or configured with at least one offset.
[0090] Preferably, the one or more monitoring occasions are overlapping with a signal, channel, and / or gap, and the wireless communication terminal performs a collision handling behavior.
[0091] Preferably, the collision handling behavior comprises at least one of:
[0092] the wireless communication terminal is not required to monitor the LP-WUS;
[0093] the wireless communication terminal is prioritized to monitor the LP-WUS;
[0094] whether the wireless communication terminal monitors the LP-WUS is up to an implementation;
[0095] the wireless communication terminal processes the signal, channel, and / or gap; or
[0096] whether the wireless communication terminal monitors the LP-WUS is based on UE capability.
[0097] Preferably, the one or more monitoring occasions overlapping with the signal, channel, and / or gap comprising :
[0098] the one or more monitoring occasions are overlapping with a C-DRX active time;
[0099] monitoring occasions for the LP-WUS are overlapping with a DL signal and / or channel;
[0100] monitoring occasions for the LP-WUS are overlapping with a UL signal and / or channel; or
[0101] monitoring occasions for the LP-WUS are overlapping with at least one of a bandwidth part, BWP, switching time, measurement gap, uplink switching gap, or DL-UL switching gap.
[0102] Preferably, at least one of the following is satisfied:
[0103] in response to LP-WUS MOs for a beam being divided into G groups, G is equal to a number of POs per PF;
[0104] in response to LP-WUS MOs for a beam being divided into G groups, G is equal to a number of POs;
[0105] a number of segments of a LO in a cycle is equal to a number of POs per PF;
[0106] a number of segments of a LO in a cycle is equal to a number of POs;
[0107] a segment of a LO corresponding to the LP-WUS in a cycle is associated to a PO;
[0108] a segment of a LO corresponding to the LP-WUS in a cycle indicates a first part of subgroup information, and / or the LP-WUS indicates a second part of the subgroup information;
[0109] a segment of a LO corresponding to the LP-WUS in a cycle indicates a LSB or MSB of subgroup information, and / or the LP-WUS indicates other bits of the subgroup information;
[0110] a segment of a LO corresponding to a subgroup index range;
[0111] a segment of a LO is associated with a PO; or
[0112] a segment index of a LO is associated with a PO index
[0113] Preferably, at least one of the following is satisfied:
[0114] the offset is defined between a LO and a PO or PF;
[0115] the offset is defined between an ending MO in a LO and a PO or PF;
[0116] the offset is defined between a window and a timer; or
[0117] the offset is defined between an ending MO in a window and a timer.
[0118] The present disclosure relates to a computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any one of foregoing methods.
[0119] The exemplary embodiments disclosed herein are directed to providing features that will become readily apparent by reference to the following description when taken in conjunction with the accompanying drawings. In accordance with various embodiments, exemplary systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these embodiments are presented by way of example and not limitation, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed embodiments can be made while remaining within the scope of the present disclosure.
[0120] Thus, the present disclosure is not limited to the exemplary embodiments and applications described and illustrated herein. Additionally, the specific order and / or hierarchy of steps or operations in the methods disclosed herein are merely exemplary approaches. Based upon design preferences, the specific order or hierarchy of steps or operations of the disclosed methods or processes can be re-arranged while remaining within the scope of the present disclosure. Thus, those of ordinary skill in the art will understand that the methods and techniques disclosed herein present various steps or operations in a sample order, and the present disclosure is not limited to the specific order or hierarchy presented unless expressly stated otherwise.
[0121] The above and other aspects and their implementations are described in greater detail in the drawings, the descriptions, and the claims.
[0122] FIG. 1 shows a schematic diagram of LP-WUS according to an embodiment of the present disclosure.
[0123] FIG. 2 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0124] FIG. 3 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0125] FIG. 4 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0126] FIG. 5 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0127] FIG. 6 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0128] FIG. 7 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0129] FIG. 8 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0130] FIG. 9 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0131] FIG. 10 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0132] FIG. 11 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0133] FIG. 12 shows a schematic diagram of an offset according to an embodiment of the present disclosure.
[0134] FIG. 13 shows an example of a schematic diagram of LP-SS according to an embodiment of the present disclosure.
[0135] FIG. 14 shows an example of a schematic diagram of LP-SS according to an embodiment of the present disclosure.
[0136] FIG. 15 shows an example of a schematic diagram of LP-SS according to an embodiment of the present disclosure.
[0137] FIG. 16 shows an example of a schematic diagram of a wireless communication terminal according to an embodiment of the present disclosure.
[0138] FIG. 17 shows an example of a schematic diagram of a wireless communication terminal according to an embodiment of the present disclosure.
[0139] FIGs. 18 and 19 show flowcharts of wireless communication methods according to some embodiments of the present disclosure.
[0140] In the paragraphs below, some aspects of the present disclosure are provided, but the present disclosure is not limited thereto. Besides, embodiments in different aspects described below can be combined or cross-referenced unless expressly stated otherwise.
[0141] Aspect 0:
[0142] In some embodiments, in idle mode, LP-WUS is mainly used to trigger UE to monitor paging PDCCH or LP-WUS is mainly used for trigger UE to wake-up. In connected mode, LP-WUS is mainly used to trigger UE to monitor PDCCH, or trigger a timer or trigger UE to wake-up. After UE wakes up, UE can monitor PEI PDCCH, or paging PDCCH, or perform measurement in idle mode. After wake-up, UE can monitor PDCCH, report, or perform measurement in connected mode.
[0143] In some embodiments, LP-WUS is used to trigger the BWP switching, carrier switching, or cell switching, including one or more cells switching, a group of cells switching, one or more carriers switching, a number of carriers switching.
[0144] In some embodiments, LP-WUS could be used to activate or deactivate a RRC configuration. For example, activating or deactivating a PDCCH monitoring searchspace. After UE receive the LP-WUS, the UE start to monitoring a PDCCH monitoring searchspace or not monitor it. For example, activating or deactivating a measurement behavior. LP-WUS can be used to trigger the measurement.
[0145] Aspect 1:
[0146] In the paragraphs below, some items of the present disclosure are provided, but the present disclosure is not limited thereto. Besides, embodiments in different items described below can be combined or cross-referenced unless expressly stated otherwise.
[0147] To indicate at least one of subgroup indication information, paging occasion, PO, indication information, paging frame, PF, indication information, grouping information of subgroups for one or more POs and / or PFs, the LP-WUS bits needs to be utilized more efficiently.
[0148] Item 1:
[0149] In some embodiments, the UE monitors the LP-WUS on one or more monitoring occasions according to at least an offset.
[0150] In some embodiments, the UE determines the behavior based on the LP-WUS, wherein the UE behavior comprises monitoring paging Physical Downlink Control Channel (PDCCH) , starting a timer, or monitoring the PDCCH. In some embodiments, monitoring the PDCCH or monitoring on the PDCCH occasion are used interchangeably.
[0151] In the present disclosure, monitoring, receiving, and detecting a signal / channel (e.g., the LP-WUS) may be used interchangeably. In the present disclosure, starting and triggering a timer could be interchangeably.
[0152] In some embodiments, the LP-WUS comprises one or more information bits. A LP-WUS is scrambled by one RNTI for one or more cells. At least one of following coding steps for LP-WUS can be identified:
[0153] - Information element multiplexing
[0154] - CRC attachment
[0155] - Channel coding
[0156] - Rate matching
[0157] In some embodiments, the one or more information bits and / or reserved bits comprised in LP-WUS bits are binary value, e.g., 0 or 1. Each LP-WUS indication value corresponds to a LP-WUS bits combination. For example, 6bits as 101010 is a kind of LP-WUS bits combination, which corresponds to a LP-WUS indication value or a value via LP-WUS indication. A value range could be a binary value range, e.g., 000001~00011, or could be a decimal value range, e.g., 1~3. In some embodiments, indication values in a range and value range can be used interchangeably.
[0158] In some embodiments, an LP-WUS indication comprises X1 MSB bits ‘0’s, 1 bit ‘1’ , and X2 LSB bits for subgroup indication information or subgroup index; in total, the payload size L=X1+1+X2.
[0159] In some embodiments, an LP-WUS indication comprises an offset or offset value, X2 LSB bits for subgroup indication information or subgroup index;
[0160] In some embodiments, based on different configured number of subgroups, the LP-WUS comprises X1 MSB bits ‘0’s, 1 bit ‘1’ , X2 LSB bits for subgroup indication information or subgroup index; However, for different configured number of subgroups, X1 and or X2 could be different. The payload size L=X1+1+X2 is not changed. In some cases, X1=0 or X2=0.
[0161] Item 2-Method 1:
[0162] In some embodiments, different value ranges in the LP-WUS correspond to different number of subgroups indicated by LP-WUS. In some embodiments, 0 to C (N, 1) -1 corresponds to one subgroup, e.g., subgroup 0~N-1. In some embodiments, C (N, 1) to C (N, 1) +C (N, 2) -1 corresponds to 2 subgroups, e.g., C (N, 2) combinations of two subgroups. In some embodiments, all ‘1’s or ‘0’s in the LP-WUS corresponds to all subgroups for one or more paging occasions (POs) .
[0163] Item 2-Method 2:
[0164] In some embodiments, i subgroups correspond to the value range where m is 2x, x>=0 and x is integer, and / or 2n corresponds to the configured number of subgroups.
[0165] In some embodiments, the configured number of subgroups comprise at least one of
[0166] · the maximum number of subgroups per PO or per PF;
[0167] · maximum / total number of subgroups for one or more POs, or for one or more POs in a PF, or for one or more PFs;
[0168] · the predetermined / preconfigured number of subgroups per PO or for one or more POs, or for one or more POs in a PF, or for one or more PFs;
[0169] · The configured number of subgroups per PO or per PF, or for for one or more POs, or for one or more POs in a PF, or for one or more PFs; and / or
[0170] · For example, in some embodiments, the maximum number of subgroups per PO is 32, the configured number of subgroups could be no more than 32, e.g., 32, 16, 8, 4.
[0171] In some embodiments, i subgroups or number of subgroups is referred to the number of subgroups indicated by LP-WUS.
[0172] In some embodiments, for i subgroups, assuming the starting subgroup index is h, then the corresponding subgroup index for i subgroups is h, h+1, ..., h+i-1.
[0173] In some embodiments, h is determined based on where value is determined by the LP-WUS indication.
[0174] In some embodiments, h=value1*i.
[0175] In some embodiments, the LP-WUS indication value may be determined by
[0176] Item 2-Method 3:
[0177] In some embodiments, the configured number of subgroups is 2n, payload size L is L=n+1, n is at least one of 2, 3, 4, and / or 5. In some embodiments, indicated number of subgroups via LP-WUS is i, where i=2j. In some embodiments, the LP-WUS indication value may be where h is the starting subgroup index. In some embodiments, i is the number of subgroups indicated by the LP-WUS. In some embodiments, i=2j. In some embodiments, L=n+1, and the number of subgroup is 2n.
[0178] Item 3:
[0179] In some embodiments, the LP-WUS comprises at least one of subgroup indication information, paging occasion, PO, indication information, paging frame, PF, indication information, grouping information of subgroups for one or more POs and / or PFs.
[0180] In some embodiments, the subgroup indication information comprises at least one of a subgroup index, number of subgroups, configured number of subgroups, subgroup indexes combination.
[0181] In some embodiments, PO and / or PF indication information comprises a number of PO (s) and / or PF (s) , and / or PO and / or PF index (es) .
[0182] In some embodiments, a size or number of bits of the PO indication information is determined by a number of POs in a paging frame, PF, or a number of POs associated to a LP-WUS occasion, LO.
[0183] In some embodiments, the grouping information comprises 1or 2 LSB or MSB of the LP-WUS. In some embodiments, the grouping information indicates 1, 2, or 4 groups. In some embodiments, the grouping information corresponds to a group of subgroups. In some embodiments, the grouping information is indicated via LO segment location / index.
[0184] In some embodiments, a subgroup is UEID-based subgroup or CN-assigned subgroup.
[0185] Item 3-1:
[0186] In some embodiments, the LP-WUS comprises the subgroup indication field and the PO indication field. In some embodiments, if the PO indication field indicates a specific value, e.g., all 0s, the subgroup indication field may use 0 or 1 to indicate all subgroups for two POs. Otherwise, the subgroup indication field by using 0 or 1 corresponds to the first PO or the second PO.
[0187] In some embodiments, if the subgroup indication field is all 0s, the PO indication field may indicate all the subgroups for one or more or all POs, otherwise, the PO indication field may indicate the PO index.
[0188] In some embodiments, the PO indication field size (also referred to as the size of the PO indication field is determined by the number of POs in a PF (paging frame) or the number of POs associated to LO.
[0189] Item 3-2:
[0190] In some embodiments, all 0s indicates all subgroups for all POs in a PF. In some embodiments, all 0s indicates all subgroups for one or more POs. In some embodiments, all 0s indicates all subgroups for one or more POs in a PF. In some embodiments, 6, 7, or 8 bits in LP-WUS may indicate one or more POs and / or one or more subgroups as described below.
[0191] In some embodiments, 6 bits in the LP-WUS as 000001 indicates 32 subgroups.
[0192] In some embodiments, 6 bits in the LP-WUS as 00001x indicates 16 subgroups.
[0193] In some embodiments, 6 bits in the LP-WUS as 0001xx indicates 8 subgroups.
[0194] In some embodiments, 6 bits in the LP-WUS as 001xxx indicates 4 subgroups.
[0195] In some embodiments, 6 bits in the LP-WUS as 01xxxx indicates 2 subgroups.
[0196] In some embodiments, 6 bits in the LP-WUS as 1xxxxx indicates 1 subgroup.
[0197] In some embodiments, 6 bits in the LP-WUS as 0001xx indicate all subgroups for first PO or second PO or third PO or fourth PO in a PF.
[0198] In some embodiments, 6 bits in LP-WUS as 0001xx indicate all subgroups for the first PO or the second PO or the third PO or the fourth PO in a PF.
[0199] In some embodiments, 6 bits in the LP-WUS as 000100 indicate all subgroups for the first PO in a PF.
[0200] In some embodiments, 6 bits in the LP-WUS as 000101 indicate all subgroups for the second PO in a PF.
[0201] In some embodiments, 6 bits in the LP-WUS as 000110 indicate all subgroups for the third PO in a PF.
[0202] In some embodiments, 6 bits in the LP-WUS as 000111 indicate all subgroups for the fourth PO in a PF.
[0203] In some embodiments, 6 bits in the LP-WUS as 001xxx indicate 4 subgroups for its own PO.
[0204] In some embodiments, 6 bits in the LP-WUS as 01xxxx indicate 2 subgroups for its own PO. In some embodiments, 6 bits in the LP-WUS as 1xxxxx indicate 1 subgroup for its own PO.
[0205] In some embodiments, 7 bits in LP-WUS may indicate one or more POs and / or one or more subgroups as described below.
[0206] In some embodiments, the PO indication is 1 bit, 0 / 1 indicates first PO, and 1 / 0 indicates the second PO, if at least one of the following conditions is satisfied:
[0207] the LP-WUS does not indicate all subgroups;
[0208] the LP-WUS does not indicate all subgroups for one or more POs;
[0209] the LP-WUS does not indicate the reserved state; and / or
[0210] the value of 6 Least Significant Bit (LSB) / Most Significant Bit (MLB) is equal or larger than 1.
[0211] In some embodiments, the LP-WUS indicates the number of subgroups 1~M / 2, wherein M is the maximum number of subgroups per PO or M is configured number of subgroups per PO or is configured by the gNodeB (gNB) .
[0212] In some embodiments, the LP-WUS indicates the number of subgroups less than M, or no larger than M.
[0213] In some embodiments, the LP-WUS LSB / MSG bits is not all 0s.
[0214] In some embodiments, the PO indication is 1 bit, 0 / 1 indicates first PO, and 1 / 0 indicates the second PO, if at least one of the following conditions is satisfied:
[0215] In some embodiments, the PO indication is 1 bit, 0 / 1 indicates two POs, if at least one of the following conditions is satisfied:
[0216] the LP-WUS LSB / MSG bits is set as all 0s;
[0217] the LP-WUS indicate number of subgroups larger than M. In some embodiments, the value of 6LSB / MLB is 0; and / or
[0218] In some embodiments, the value of log2 (M) bits is set to a specific value, e.g., all 0s, all 1s.
[0219] the value of LSB or MSB log2 (M) bits is set to a specific value, e.g., all 0s, all 1s.
[0220] In some embodiments, 8 bits in LP-WUS includes may indicate one or more POs and / or one or more subgroups as described below.
[0221] In some embodiments, if the value of log2 (M) bits is all 0s, wherein M is the maximum number of subgroups per PO or M is configured number of subgroups.
[0222] In some embodiments, the PO indication corresponds to at least one of the first PO; the first PO and the second PO; the first PO, the second PO, and the third PO; and / or the first PO, the second PO, the third PO and the fourth PO.
[0223] In some embodiments, the first to fourth POs are within one PF.
[0224] Item 4:
[0225] In some embodiments, the LP-WUS indication may indicate UEs corresponding carriers or cells to monitor PDCCH or starting timer. In some embodiments, the LP-WUS may indicate to start the timer but not start PDCCH monitoring. In some embodiments, the LP-WUS may indicate to start the timer also start PDCCH monitoring.
[0226] Item 5:
[0227] In some embodiments, if the periodicity for the LP-WUS is the same as the long C-DRX cycle, the LP-WUS is used to trigger the starting of the first timer, e.g., drx-onDurationTimer.
[0228] In some embodiments, if the periodicity for the LP-WUS is smaller than the long DRX cycle, and if RRC configuration indicates second timer is not triggered by LP-WUS for PDCCH monitoring, the LP-WUS may be used to trigger the starting of the second timer. Otherwise, the LP-WUS is used to trigger the starting of the second timer or the first timer, wherein the second timer could be triggered by the LP-WUS in a nearest LP-WUS monitoring window or in one or more MOs near to start of first timer, and the first timer could be triggered by the LP-WUS in other LP-WUS monitoring windows or other MOs except the near MO (s) before start of the first timer.
[0229] Item 6:
[0230] In some embodiments, the UE may be configured with one or two or more LP-WUS monitoring spaces. In some embodiments, the monitoring space is associated / configured with the first timer and / or second timer. In some embodiments, the monitoring space is associated / configured with a Transmission Configuration Indication (TCI) state. In some embodiments, the monitoring space is configured with a window, or one or more monitoring occasions. In some embodiments, each occasion occupies several symbols or slots. In some embodiments, the monitoring space is configured / associated with frequency resources for the LP-WUS. In some embodiments, the monitoring space is configured with a monitoring space ID. In some embodiments, the monitoring space is configured / associated with a type. In some embodiments, the monitoring space is configured / associated with a periodicity. In some embodiments, the monitoring space is configured / associated with at least one offset.
[0231] In some embodiments, a common LP-WUS monitoring space for all UEs monitoring LP-WUS.
[0232] In some embodiments, a group specific LP-WUS monitoring space used for one or more subgroup UEs monitoring LP-WUS.
[0233] Item 7:
[0234] In some embodiments, in response to at least one of the following conditions, the UE performs a UE behavior:
[0235] the LP-WUS monitoring occasions is overlapping with the Connected-mode Discontinuous Reception (C-DRX) active time;
[0236] the LP-WUS monitoring occasions is overlapping with the DL signal / channel;
[0237] the LP-WUS monitoring occasions is overlapping with UL signal / channel; and / or
[0238] the LP-WUS monitoring occasions is overlapping with at least one of the BWP switching time, the measurement gap, the uplink switching gap, and / or the DL-UL switching gap.
[0239] In the present disclosure, overlapping and colliding are used interchangeably. When the LP-WUS monitoring occasions overlapping with some other signal / channel / resources, it means the symbols or slots or frequency or time domain resources of the LP-WUS monitoring occasions are overlapped with another signal / channel / resource.
[0240] In some embodiments, the UE behavior comprises at least one of the following:
[0241] the UE is not required to monitor the LP-WUS;
[0242] the UE is prioritized to monitor the LP-WUS;
[0243] behavior (s) is up to the UE implementation;
[0244] the wireless communication terminal processes the signal, channel, and / or gap; and / or
[0245] whether the wireless communication terminal monitors the LP-WUS is based on UE capability.
[0246] In some embodiments, processing the signal / channel means receiving / monitoring / detecting the DL / UL signal / channel. In some embodiments, processing the gap means the UE performs the measurement behavior, BWP switching, Tx switching behavior, DL=UL switching behavior, during the gap.
[0247] In some embodiments, the behavior during at least one of the C-DRX active time, the DL signal / channel, and / or the UL signal / channel may be prioritized or performed.
[0248] Item 8:
[0249] In some embodiments, the LO segment / index / location / group, the LO segment / index / location / group in a cycle and the segment / index / location / group in a LO are interchangeably. In some embodiments, location, index, group, segment are used interchangeably.
[0250] In some embodiments, the LO segment / index / location in a cycle, e.g., the LP-WUS cycle, and / or the paging cycle, occupies the MSB of the subgroup information, and / or the LP-WUS indicates the LSB of the subgroup information. In some embodiments, the LO segment / index / location in a cycle occupies the LSB of the subgroup information, and / or the LP-WUS indicates the MSB of subgroup information.
[0251] In some embodiments, each LO segment / group corresponds to a subgroup index range, which is a subset of all the subgroups for one or more POs.
[0252] In some embodiments, the LO location in a cycle indicates or associates / corresponds to the PO index information if multiple POs are associated with the LO. For example, there are 4 LO segments / locations / indexes, corresponding to 4 POs. In some embodiments, the first LO segments corresponds to the first PO. In some embodiments, the second LO segments corresponds to the second PO. In some embodiments, the third LO segment corresponds to the third PO. In some embodiments, the fourth LO segment corresponds to the fourth PO. In some embodiments, the first group of G groups is corresponding to the first PO in a PF, and the second group of G groups is corresponding to the second PO in a PF, et cetera.
[0253] In some embodiments, the number of groups G is equal to / associated to / corresponding to the number of POs per PF. In some embodiments, the number of LO segments / indexes / locations / groups in a cycle is equal to the number of POs per PF.
[0254] In some embodiments, one offset corresponds to one LO in a cycle.
[0255] In some embodiments, one LO in a cycle comprises one or more monitoring occasions.
[0256] In some embodiments, one LO comprises one or more segments, wherein the terminal monitor one segment in one LO and one segment comprise one or more monitoring occasions.
[0257] Aspect 2:
[0258] In some embodiments, the UE monitors the LP-WUS on one or more monitoring occasions according to at least an offset. In some embodiments, the offset is defined based on at least one of the following. In some embodiments, the offset is defined between the LO and the PO or the PF. In some embodiments, the offset is defined between the ending MO of the LO and the PO or the PF. In some embodiments, the offset is defined between the window and a timer. In some embodiments, the offset is defined between the ending MO of the window and a timer.
[0259] In some embodiments, the LO comprises one or more MOs. In some embodiments, a window comprises one or more MOs.
[0260] In some embodiments, the LO comprises one or more segments or groups. In some embodiments, for each group or segment, the UE monitors all or some of the MO (s) within one group / segment based on its subgroup ID.
[0261] In some embodiments, the LP-WUS indicates at least one of a wake-up indication, a subgroup ID information, a configured RNTI information, and / or a configured ID information.
[0262] In some embodiments, monitoring occasions is defined on symbols or slots. In some embodiments, monitoring occasions is an occasion where to monitor LP-WUS.
[0263] In some embodiments, the UE monitors the LP-WUS on one or more monitoring occasions, satisfying: the offset or a gap determined by the offset is a minimum offset or gap larger than the wake-up delay.
[0264] Aspect 3: LP-WUS design with the PO
[0265] In some embodiments in idle mode, the LP-WUS comprises the subgroup information to trigger the corresponding UE (s) to monitor PO. In some embodiments, if the UE detects its own subgroup ID information, then the UE may monitor the PO. In some embodiments, if the UE does not receive the LP-WUS or does not detect a its own corresponding subgroup information, the UE may be not required to monitor PO.
[0266] In some embodiments, if the number of subgroups indicated by the LP-WUS is larger than 1, the subgroup indexes are continuous or not overlapped.
[0267] In the paragraphs below, some cases of the present disclosure are provided, but the present disclosure is not limited thereto. Besides, embodiments in different cases described below can be combined or cross-referenced unless expressly stated otherwise.
[0268] Case 1: 6 bits in LP-WUS for one or more POs associated to LO
[0269] In some embodiments, the LP-WUS comprises subgroup indication information and PO indication information. In some embodiments, the LP-WUS payload size is 6 bits.
[0270] Method 1-1
[0271] Referring to FIG. 1, in some embodiments, the indication method comprises at least one of the following. In some embodiments, all 0s indicate all subgroups for all POs in a PF. In some embodiments, all 0s indicate all subgroups for one or more POs. In some embodiments, all 0s indicate all subgroups for one or more POs in a PF.
[0272] In some embodiments, the indication method comprises at least one of the following indications.
[0273] In some embodiments, 6 bits in the LP-WUS as 000001 indicates 32 subgroups.
[0274] In some embodiments, 6 bits in the LP-WUS as 00001x indicates 16 subgroups. In such a case, the LP-WUS comprises 2 states, and each state corresponding to 16 subgroups.
[0275] In some embodiments, 6 bits in the LP-WUS as 0001xx indicates 8subgroups. In such a case, the LP-WUS comprises 4 states, and each state corresponding to 8 subgroups.
[0276] In some embodiments, 6 bits in the LP-WUS as 001xxx indicates 4 subgroups. In such a case, the LP-WUS comprises 8 states, and each state corresponding to 4 subgroups.
[0277] In some embodiments, 6 bits in the LP-WUS as 01xxxx indicates 2 subgroups. In such a case, the LP-WUS comprises 16 states, and each state corresponding to 2 subgroups.
[0278] In some embodiments, 6 bits in the LP-WUS as 1xxxxx indicates 1 subgroup. In such a case, the LP-WUS comprises 32 states, and each state corresponding to 1 subgroups.
[0279] Method 1-2
[0280] In some embodiments, the indication method comprises at least one of the following.
[0281] Referring to FIG. 2, in some embodiments, all 0s or 000001 may indicate all subgroups for all POs in a PF.
[0282] In some embodiments, 6 bits in the LP-WUS as 00001x indicate all subgroups for 2 POs in a PF.
[0283] In some embodiments, 6 bits in LP-WUS as 00001x indicate all subgroups for first two 2POs or second 2 POs in a PF. In some embodiments, 6 bits in the LP-WUS as 000010 indicate all subgroups for first two 2 POs in a PF. In some embodiments, 6 bits in the LP-WUS as 000011 indicate all subgroups for the second two 2 POs if configured in a PF.
[0284] In some embodiments, 6 bits in LP-WUS as 0001xx indicate all subgroups for 1 PO in a PF. In some embodiments, 6 bits in the LP-WUS as 0001xx indicate all subgroups for at least one of the first PO, the second PO, the third PO and / or the fourth PO in a PF.
[0285] In some embodiments, 6 bits in LP-WUS as 0001xx indicate all subgroups for first PO or second PO or third PO or fourth PO in a PF. In some embodiments, 6 bits in the LP-WUS as 000100 indicate all subgroups for first PO in a PF. In some embodiments, 6 bits in the LP-WUS as 000101 indicate all subgroups for second PO in a PF. In some embodiments, 6 bits in the LP-WUS as 000110 indicate all subgroups for third PO in a PF. In some embodiments, 6 bits in LP-WUS as 000111 indicate all subgroups for fourth PO in a PF.
[0286] In some embodiments, 6 bits in the LP-WUS as 001xxx indicate 4 subgroups for the PO corresponding to the LP-WUS. In some embodiments, 6 bits in the LP-WUS as 01xxxx indicate 2 subgroups for the PO corresponding to the LP-WUS. In some embodiments, 6 bits in the LP-WUS as 1xxxxx indicate 1 subgroup for the PO corresponding to the LP-WUS.
[0287] Regarding the states illustrated in FIG. 2, one value corresponding to one or several bits. In some embodiments, each state indicates the subgroup information. In some embodiments, one state corresponds to a value with one or more bits in LP-WUS.
[0288] For example: 32 states means subgroup 0~31 corresponds to value 0~31 of the states. In some embodiments, each state indicates one subgroup.
[0289] In some embodiments, 16 states means subgroup 0 and 1, 2 and 3, 4 and 5, ... 30 and 31 respectively corresponds to 16 states. In some embodiments, each state indicates two subgroups.
[0290] In some embodiments, 8 states means subgroups 0 to 3, 4 to 7, …28 to 31 respectively corresponds to 8 states. In some embodiments, each state indicates four subgroups.
[0291] In some embodiments, 4 states above means subgroups 0 to 7, 8 to 15, …24 to 31respectively corresponds to 4 states. In some embodiments, each state indicates all subgroups for 1 PO in a PF.
[0292] Case 2: 7 bits in LP-WUS for one or more POs associated to LO
[0293] Method 1: two POs are associated with LO
[0294] FIG. 3 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0295] In some embodiments, the LP-WUS comprises subgroup indication information and PO indication information.
[0296] In some embodiments, PO indication is 1 bit, with 0 / 1 indicates first PO, and 1 / 0 indicates the second PO, if at least one of the following conditions is satisfied.
[0297] the LP-WUS does not indicate all subgroups;
[0298] the LP-WUS does not indicate all subgroups for one or more POs;
[0299] the LP-WUS does not indicate the reserved state;
[0300] the value of 6LSB / MLB is equal or larger than 1;
[0301] the LP-WUS indicates number of subgroups 1~M / 2; M is the maximum number of subgroups per PO or M is configured number of subgroups;
[0302] the LP-WUS indicates number of subgroups less than M, or no larger than M; and / or
[0303] the LP-WUS LSB / MSG bits is not all 0s.
[0304] In some embodiments, the PO indication is 1 bit, with 0 / 1 indicates two POs. In some embodiments, this happens in response to at least one of the following being satisfied:
[0305] the LP-WUS LSB / MSG bits is set as all 0s;
[0306] the LP-WUS indicate number of subgroups larger than M;
[0307] the value of 6LSB / MLB is 0;
[0308] the value of log2 (M) bits is set to a specific value, e.g., all 0s, or all 1s; and / or
[0309] the value of LSB or MSB log2 (M) bits is set to a specific value, e.g., all 0s, or all 1s.
[0310] In the present disclosure the term ‘indicates’ and ‘corresponds to’ are interchangeable.
[0311] In some embodiments, the LP-WUS indicates all subgroups (wake-up) for two POs, including at least one of the following:
[0312] 0000000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0313] 1000000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0314] 000000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0315] 100000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0316] 00000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0317] 10000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0318] 0000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0319] 1000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0320] 000 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0321] 100 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0322] 0000001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0323] 1000001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0324] 000001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0325] 100001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0326] 00001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0327] 10001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0328] 0001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0329] 1001 in the LP-WUS indicates all subgroups for two POs to wake-up;
[0330] 001 in the LP-WUS indicates all subgroups for two POs to wake-up; and / or
[0331] 101 in the LP-WUS indicates all subgroups for two POs to wake-up.
[0332] The number of binary values above corresponds to the number of bits in the LP-WUS.
[0333] Method 2: at most 4 POs are associated with LO
[0334] FIG. 4 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0335] In some embodiments, the LP-WUS comprises 7 bits to indicate the PO information, and subgroup information.
[0336] In some embodiments, at least one state with 7bits corresponds to all subgroups for all POs, 4 POs, or one or more POs in a PF.
[0337] In some embodiments, one subgroup corresponds to 32 states, two subgroup corresponds to 16 states.
[0338] In some embodiments, PO information and PO indication information are interchangeable. In some embodiments, subgroup information and subgroup indication information are interchangeable.
[0339] Case 3: 8 bits LP-WUS for 4 POs associated to LO
[0340] FIG. 5 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0341] In some embodiments, if the value of log2 (M) bits in the LP-WUS is no less than 1, the PO indication corresponding to at least one of the first PO, the second PO, the third PO and / or the fourth PO. In some embodiments, M is the maximum number of subgroups per PO or M is configured number of subgroups.
[0342] For example, the PO indication is 2 bits, 00 corresponds to first PO, and 01 corresponds to the second PO, 10 corresponds to the third PO, and 11 corresponds to the fourth PO.
[0343] In some embodiments, if the value of log2 (M) bits is all 0s, the PO indication corresponding to at least one of:
[0344] the first PO,
[0345] the first PO and the second PO,
[0346] the first PO, the second PO, and the third PO, and / or
[0347] the first PO, the second PO, the third PO and the fourth PO.
[0348] M is the maximum number of subgroups per PO or M is configured number of subgroups.
[0349] In some embodiments, the 4 POs are within one PF.
[0350] In some embodiments, if the PO indication field indicates as a specific value, e.g., all 0s, subgroup indication field by using 00, 01, 10, or 11 to indicate all subgroups for one, two, three or four POs. Otherwise, the subgroup indication field by using 0 or 1 corresponds to at least one of the first PO, the second PO, the third PO and / or the fourth PO.
[0351] Case 3: the LP-WUS comprises the subgroup indication field and / or the PO indication field
[0352] In some embodiments, the LP-WUS comprises the subgroup indication field and / or the PO indication field. In some embodiments, a field corresponding to one or more bits in LP-WUS.
[0353] In some embodiments, if PO indication field indicates as a specific value, e.g., all 0s, subgroup indication field by using 0 or 1 to indicates all subgroups for two POs. Otherwise, subgroup indication field by using 0 or 1 corresponds to first PO or second PO.
[0354] In some embodiments, if subgroup indication field is all 0s, PO indication field indicates all the subgroups for all POs, otherwise, the PO indication field indicates the PO index.
[0355] In some embodiments, the PO indication field size is determined by the number of POs in a PF or the number of POs associated to LO.
[0356] Aspect 4: LP-WUS design without PO
[0357] In the paragraphs below, some methods of the present disclosure are provided, but the present disclosure is not limited thereto. Besides, embodiments in different methods described below can be combined or cross-referenced unless expressly stated otherwise.
[0358] Method 1:
[0359] In some embodiments, different value ranges in the LP-WUS correspond to different number of subgroups. In some embodiments, 0 to C (N, 1) -1 corresponds to one subgroup, e.g., subgroup 0 to N-1. In some embodiments, C (N, 1) to C (N, 1) +C (N, 2) -1 corresponds to 2 subgroups, e.g., C (N, 2) combinations of two subgroups, C is a combination function and N is the configured number of subgroups. In some embodiments, all ‘1’s or ‘0’s in LP-WUS corresponds to all subgroups for one or more POs.
[0360] An example of the LP-WUS indication value and corresponding subgroup index for N=32, LP-WUS payload size=10 bits is shown in FIG. 6. in some embodiments, LP-WUS uses 10bits to indicate subgroup information. In some embodiments, LP-WUS indication value range 0~31 corresponds to 1subgroup, value range 32~527 corresponds to 2 subgroups, and / or 1023 corresponds to all subgroups with index 0~31.
[0361] An example of the LP-WUS indication value and corresponding subgroup index for N=16, LP-WUS payload size=8 bits is shown in FIG. 7. In some embodiments, LP-WUS uses 8bits to indicate subgroup information. In some embodiments, value range 0~15 corresponds to one subgroup, value range 16~135 corresponds to two subgroups, and / or value 255 corresponds to 16 subgroups with index 0~15.
[0362] An example of the LP-WUS indication value and corresponding subgroup index for N=8, LP-WUS payload size=6 bits is shown in FIG. 8. In some embodiments, LP-WUS uses 6bits to indicate subgroup information. In some embodiments, value range 0~7 corresponds to one subgroup, value range 8~35 corresponds to 2 subgroups, and / or value 63 corresponds to 8 subgroups with index 0~7.
[0363] In some embodiments, the LP-WUS indication may also indicate 3 subgroup and / or 4 subgroups.
[0364] In some embodiments, different value ranges in the LP-WUS correspond to different number of subgroups.
[0365] In some embodiments, 0 to C (N, 1) -1 correspond to one subgroup, e.g., subgroup 0 to N-1.
[0366] In some embodiments, C (N, 1) to C (N, 1) +C (N, 2) -1 corresponds to 2subgroups, e.g., C (N, 2) combinations of two subgroups.
[0367] In some embodiments, C (N, 1) +C (N, 2) to C (N, 1) +C (N, 2) +X-1 corresponds to 3 subgroups.
[0368] In some embodiments, C (N, 1) +C (N, 2) to C (N, 1) +C (N, 2) +X, C (N, 1) +C (N, 2) to C (N, 1) +C (N, 2) +X+Y corresponds to 4 subgroups.
[0369] In some embodiments, all ‘1’s or ‘0’s in LP-WUS corresponds to all subgroups for one or more POs.
[0370] In some embodiments, in total, the payload size or information bits of LP-WUS is no more than 11, 10, 9, 8, 7, 6, bits. In some embodiments, if the payload size is L bits, the L bits comprise information bits and reserved bits if any. In some embodiments, the payload size is used for indicating the information in LP-WUS or reserved bits / states.
[0371] Method 2:
[0372] In some embodiments, if the configured number of subgroups is N, the LP-WUS indicates the number of subgroups as 2i, where i=0, ..., n, where 2n=N.
[0373] In some embodiments, the gNB may configure the parameter n, and the corresponding number of subgroups per PO is 2n. In some embodiments, the LP-WUS indicates the number of subgroups as 2i, where i=0, ..., n.
[0374] In some embodiments, different value ranges in the LP-WUS correspond to different number of subgroups. In some embodiments, 0 to 2n-1 corresponds to one subgroup, e.g., subgroup 0 to N-1.
[0375] In some embodiments, 2^n~2^n+2^ (n-1) -1 corresponds to 2 subgroups. In some embodiments, 2^n+2^ (n-1) ~2^n+2^ (n-1) +2^ (n-2) -1 corresponds to 3 subgroups.
[0376] In some embodiments, i subgroups correspond to the value range where m is 2x, x>=0 and x is integer, where 2n corresponds to the configured number of subgroups.
[0377] In some embodiments, for i subgroups, assuming the starting subgroup index is h, the corresponding subgroup index for i subgroups is h, h+1, ..., h+i-1.
[0378] In some embodiments, h is determined based on where the value is determined by the LP-WUS indication.
[0379] In some embodiments, h=value1*i.
[0380] In some embodiments, based on above to calculate, given that the configured number of subgroups as 32, i=8, in this case, the value range may be 56 to 59.
[0381] In some embodiments, if the LP-WUS indication corresponds to a value 58, it means value1 = 2 and h = 16. In some embodiments, the subgroup indexes are then 16, ..., 23.
[0382] Method 3: grouping information indication for subgroups
[0383] In some embodiments, 2n subgroups may be divided into G groups, where G=2n / i, where i is the number of subgroups indicated by the LP-WUS. In some embodiments, each group contains i continuous subgroups. In some embodiments, given a LP-WUS indication value is denoted as value, where g is group ID among G groups, g=0, 1, ..., G-1.
[0384] In some embodiments, starting subgroup index h=g*i.
[0385] Method 4:
[0386] FIG. 9 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0387] In some embodiments, for i subgroups, the starting subgroup index h has the following relationship.
[0388] In some embodiments, the number of subgroup is 2n, payload size L is L=n+1, n is at least one of 2, 3, 4, and / or 5. In some embodiments, the indicated number of subgroups via LP-WUS is i, where i=2j.
[0389] In some embodiments, the LP-WUS indication value may be
[0390] In some embodiments, h is the starting subgroup index.
[0391] In some embodiments, i is the number of subgroups indicated by LP-WUS
[0392] In some embodiments, i=2j.
[0393] In some embodiments, L=n+1, and the number of subgroup is 2n.
[0394] Aspect 5: LP-WUS design for CA case
[0395] In some embodiments, in connected mode, the LP-WUS is mainly used to trigger some UEs to monitor the PDCCH or start a timer. In some embodiments, the LP-WUS may be used when CA is configured. In some embodiments, the LP-WUS indication may indicate UEs corresponding carriers or cells to monitor PDCCH or starting timer.
[0396] In some embodiments, the CA indication may trigger UE to monitor PDCCH or start a timer.
[0397] In some embodiments, 1 bit in LP-WUS may be used for a UE. In some embodiments, '1' or ‘0’ value when reported to higher layers, indicates to start the first timer, e.g., drx-onDurationTimer if a parameter is configured for the next long DRX cycle, otherwise to start the second timer. In some embodiments, the parameter is used to determine whether the LP-WUS could be used to trigger the second timer and first timer, or only the second timer, or only the first timer.
[0398] In some embodiments, '1' or ‘0’ value when reported to higher layers, indicates to start the first timer, e.g., drx-onDurationTimer or second timer for the next long DRX cycle.
[0399] In some embodiments, the LP-WUS indicates to start the timer but not start PDCCH monitoring
[0400] In some embodiments, the LP-WUS indicates to start the timer also start PDCCH monitoring
[0401] In some embodiments, 2 bits in LP-WUS may be used for a UE.
[0402] In some embodiments, '11' value when reported to higher layers, for the first and second groups of at least one of carriers, scells, serving cells, and / or the DRX, indicates to start the first timer and start PDCCH monitoring for the next long DRX cycle.
[0403] In some embodiments, '10' value when reported to higher layers, for the first group of at least one of carrier, scells, serving cells, and / or the DRX, indicates to start the first timer and start the PDCCH monitoring for the next long DRX cycle. In some embodiments, '10' value when reported to higher layers, for the second group of at least one of carrier, scells, serving cells, and / or the DRX, indicates to start the first timer and not start PDCCH monitoring for the next long DRX cycle.
[0404] In some embodiments, '01' value when reported to higher layers, for the second group of at least one of carrier, scells, serving cells, and / or the DRX, indicates to start the first timer and start PDCCH monitoring for the next long DRX cycle.
[0405] In some embodiments, '00' value when reported to higher layers, for the first and second groups of at least one of carrier, scells, serving cells, and / or the DRX, indicates to start the first timer and not start PDCCH monitoring for the next long DRX cycle.
[0406] In the present disclosure, ‘Not start’ may be replaced by ‘skip’ . In some embodiments, not starting PDCCH monitoring for next DRX cycle is the same as skiping PDCCH monitoring for next DRX cycle.
[0407] In some embodiments, if not starting PDCCH monitoring is applied for some specific search spaces, e.g., type 3 CSS, USS, a bitmap method (see FIG. 10) or codepoint method (see FIG. 11) may be used.
[0408] In some embodiments, if UE operates with CA and LP-WUS, and LP-WUS use bitmap method, for one or more UEs with an ID or RNTI, the LP-WUS comprises one or more bits for indication. One indication and two bits indication are described above in Aspect 5.
[0409] In some embodiments, if UE operates with CA and LP-WUS, and LP-WUS use codepoint method, for one or more UEs with an ID or RNTI, the LP-WUS comprises one or more bits for CA indication and one or more bits for ID or RNTI information indication.
[0410] Aspect 6: LP-WUS trigger timer for PDCCH monitoring
[0411] In some embodiments, in connected mode, the LP-WUS may be used to trigger the UE to monitor the PDCCH or start a timer.
[0412] In the paragraphs below, some methods of the present disclosure are provided, but the present disclosure is not limited thereto. Besides, embodiments in different methods described below can be combined or cross-referenced unless expressly stated otherwise.
[0413] Method 1: LP-WUS can trigger first timer or second timer according to the configuration, no need to define different capability or UE feature
[0414] In some embodiments, the LP-WUS may trigger first timer or second timer according to the configuration, no need to define different capability or UE feature.
[0415] In some embodiments, the timer could be the first timer or second timer, wherein the first timer is based on DRX configuration, or the second timer can be applied for PDCCH monitoring. In some embodiments, the first active time is based on the first timer and second active time is based on second timer.
[0416] FIG. 12 shows a schematic diagram of an LP-WUS according to an embodiment of the present disclosure.
[0417] In some embodiments, an offset is configured between LP-WUS and the timer, wherein the timer comprises the first timer or second timer.
[0418] In some embodiments, the LP-WUS comprise at least one of an MO for the LP-WUS, the last MO of one or more MOs for LP-WUS, and / or the last MO of a window for LP-WUS.
[0419] In some embodiments, the offset may be defined between the end of window for LP-WUS and the start of the timer.
[0420] In some embodiments, the offset may be defined between the end of MOs for LP-WUS and the start of the timer.
[0421] In some embodiments, the offset can be applied for both timers.
[0422] In some embodiments, the first timer is for long DRX.
[0423] In some embodiments, the LP-WUS indication, when the UE reported to higher layers, indicates to start the first timer or second timer for the next long DRX cycle.
[0424] In some embodiments, if the periodicity is the same as long C-DRX cycle, the LP-WUS is used to trigger the starting of the first timer, e.g., drx-onDurationTimer.
[0425] In some embodiments, if the periodicity is smaller than the long DRX cycle, if RRC configuration indicates second timer is not triggered by LP-WUS for PDCCH monitoring, the LP-WUS is used to trigger the starting of the second timer. Otherwise, the LP-WUS is used to trigger the starting of the second timer or the first timer, wherein the second timer could be triggered by LP-WUS in a nearest LP-WUS monitoring window or in one or more MOs near to start of first timer, and the first timer could be triggered by LP-WUS in other LP-WUS monitoring windows or other MOs except the near MO (s) before start of the first timer.
[0426] In some embodiments, when the periodicity is the same as the C-DRX, the first feature can be enabled or first parameter can be configured, or only first timer is configured.
[0427] In some embodiments, when the periodicity is smaller than C-DRX, second feature can be enabled, or second parameter can be configured, or second timer and / or second timer is configured.
[0428] In some embodiments, for the first feature / capability, for the first LP-WUS monitoring space, the periodicity may be the same as C-DRX. The periodicity determination is obtained via signalling or by default.
[0429] In some embodiments, for the second feature / capability, for the second LP-WUS monitoring space, the periodicity may be the no larger than or smaller than C-DRX.
[0430] Method 2: UE can be configured with one or two or more LP-WUS monitoring space.
[0431] In some embodiments, the UE can be configured with one or two or more LP-WUS monitoring space.
[0432] In some embodiments, the monitoring space is associated / configured with the first timer and / or second timer. In some embodiments, the monitoring space is associated / configured with a TCI state. In some embodiments, the monitoring space is configured with a window, one or more monitoring occasions. Each occasion occupies several symbols or slots. In some embodiments, the monitoring space is configured / associated with frequency resources for LP-WUS. In some embodiments, the monitoring space is configured with the monitoring space ID.
[0433] In some embodiments, the UE behaviors may include at least one of the following.
[0434] In some embodiments, the UE does not expected to be configured with two or more LP-WUs monitoring space overlapping.
[0435] In some embodiments, the UE does not expect to receive a LP-WUS in an occasion wherein the occasion is the overlapping occasion among two or more LP-WUs monitoring space.
[0436] In some embodiments, the LP-WUS may carry the monitoring space ID information.
[0437] In some embodiments, the LP-WUS may carry the triggered timer information. For example, LP-WUS to indicate which timer are targeted / triggered.
[0438] Aspect 7: UE behavior for LP-WUS monitoring occasion and signal / channel / resources overlapping
[0439] In some cases, LP-WUS monitoring occasion and a signal / channel / resource are overlapping, but the UE may not have the capability to simultaneously process. Accordingly, some UE behaviors may be adopted. In some embodiments, when the one or more monitoring occasions are overlapping with a signal, channel, and / or gap, the UE may not perform the behavior such as monitoring a control channel and / or starting a timer, but perform a collision handling behavior.
[0440] In some embodiments, the LO comprises one or more LP-WUS monitoring occasions, in which the UE may monitor LP-WUS. In some embodiments, a window also may comprise one or more LP-WUS monitoring occasions.
[0441] In some embodiments, the LP-WUS monitoring occasions may overlap with some other signals. However, the UE may not have the capability to process LP-WUS and other signals simultaneously. Some embodiments provide methods to solve this issue.
[0442] In some embodiments, the LP-WUS monitoring occasions may overlap with some signals / channels / resources / gap. If the UE have the capability 1, the UE can process LP-WUS / LP-SS and the signals / channels / resources / gap both. If the UE have the capability 2 or have not capability 1, the UE can not process LP-WUS / LP-SS and the signals / channels / resources / gap both. In this case, the UE performs the collision handling behavior, e.g., not required to monitor LP-WUS, not expect the overlapping configuration, LP-WUS monitoring is deprioritized, or up to UE implementation and so on.
[0443] In the paragraphs below, some cases of the present disclosure are provided, but the present disclosure is not limited thereto. Besides, embodiments in different cases described below can be combined or cross-referenced unless expressly stated otherwise.
[0444] Case 1: LP-WUS monitoring is overlapping with C-DRX active time
[0445] In some embodiments, LP-WUS monitoring may be overlapping with C-DRX active time. In some embodiments, if the periodicity for C-DRX is not multiple times (no less than 1x times) than the periodicity for LP-WUS monitoring or the LP-WUS occupies many monitoring occasions, it could be possible that the LP-WUS monitoring occasions would be overlapping with the C-DRX active time. During the active time, the UE may measure, report or there are some other behaviors. In this case, the UE behavior may include at least one of:
[0446] UE is not required to monitor LP-WUS;
[0447] whether UE monitor LP-WUS is up to implementation;
[0448] UE can monitor LP-WUS based on UE capability; and / or
[0449] the UE is required to operate during the active time, e.g., measurement, report or some other behaviors.
[0450] Case 2: LP-WUS monitoring is overlapping with DL signal / channel
[0451] In some embodiments, LP-WUS monitoring may be overlapping with DL signal / channel.
[0452] In some embodiments, outside the C-DRX active time, the DL signal or channels could be SIB, SSB, paging, RAR, msg4, SPS PDSCH, or PDCCH for SIB, paging, msg4, SPS PDSCH.
[0453] In some embodiments, when the LP-WUS monitoring occasions or LP-WUS signal is overlapped with the DL signal or channel, the UE behavior may include at least one of:
[0454] the UE is not required to monitor LP-WUS on the occasions;
[0455] the UE may monitor LP-WUS when overlapping with DL signal;
[0456] the UE may monitor LP-WUS based on UE capability;
[0457] , the UE may monitor the PDCCH for SIB, paging, msg4, SPS PDSCH;
[0458] the UE may monitor the PDCCH scrambled by SI-RNTI, P-RNTI, or RA-RNTI, MCCH-RNTI or a G-RNTI for broadcast, cs-RNTI or a G-CS-RNTI;
[0459] the UE may detect the DCI format with CRC scrambled by SI-RNTI, P-RNTI, or RA-RNTI, MCCH-RNTI or a G-RNTI for broadcast, cs-RNTI or a G-CS-RNTI;
[0460] the UE may receive the PDSCH; and / or
[0461] whether the UE receive SSB / CSI-RS or LP-WUS is up to UE implementation.
[0462] Case 3: LP-WUS monitoring is overlapping with UL signal / channel
[0463] In some embodiments, the UL signal / channel including PRACH, PUSCH, PUCCH. In some embodiments, the LP-WUS monitoring occasions are overlapping with UL signals or channels or occasions for UL signals or channels.
[0464] In some embodiments, if the LP-WUS monitoring occasions is overlapped with RO, it is up to UE whether to receive LP-WUS or send PRACH.
[0465] In some embodiments, if the LP-WUS monitoring occasions is overlapped with PUCCH / PUSCH, the UE is not required to monitor LP-WUS.
[0466] In some embodiments, if the LP-WUS monitoring occasions is overlapped with PUCCH / PUSCH, the UE can monitor LP-WUS based on UE capability.
[0467] In some embodiments, if the LP-WUS monitoring occasion is overlapping with UL signal or channel, the UE is not required to monitor LP-WUS, the UE may transmit UL signal / or channel / the UE deactivate LP-WUS monitoring.
[0468] Case 4: LP-WUS monitoring is overlapping with BWP switching time / measurement gap / uplink switching gap / DL-UL switching gap
[0469] In some embodiments, the LP-WUS monitoring may be overlapping with at least one of the BWP switching time, the measurement gap, the uplink switching gap, and / or the DL-UL switching gap.
[0470] In some embodiments, the uplink switching gap is used for at least one of the UL Tx switching, the UL bands switching, the frequency hopping, and / or the frequency retuning.
[0471] In some embodiments, DL / UL switching gaps means the time for HD-FDD UE switching from DL to UL or UL to DL.
[0472] In some embodiments, if LP-WUS monitoring occasions are overlapping with the gap, the UE is not required to monitor LP-WUS.
[0473] In some embodiments, if LP-WUS monitoring occasions are overlapping with the gap, whether the UE can monitor LP-WUS depending on the UE capability.
[0474] Aspect 8:
[0475] In idle / inactive mode, the LP-WUS may be configured with one or more offsets. In some embodiments, the gap between an LO and a PO is considered to be no less than the wake-up delay a UE supports, more specifically, the gap between the end of the last LP-WUS MO the UE monitors in the LO and the start of the PO in its PF is no less than the wake-up delay.
[0476] In some embodiments, the gap is determined by the offset.
[0477] In some embodiments, the UE monitors the LO associated with the minimum offset that has a gap between the LO and the corresponding PO no less than the wake-up delay. In some embodiments, the UE is expected to be configured with at least one offset value that is no less than the reported wake-up delay. In some embodiments, the UE is not expected to be configured with no offset value that is no less than the reported wake-up delay.
[0478] In some embodiments, if subgroup indication can offload some information, subgroup information, into the LO location / segment, then the LP-WUS can have less bits and achieve better coverage or less system overhead.
[0479] In some embodiments, K LP-WUS MOs for a beam are divided into G (G comprise one of 1, 2, 4) groups of R*M (M >= 1) LP-WUS MOs.
[0480] In some embodiments, the LO segment / location in a cycle, e.g., LP-WUS cycle, paging cycle, occupies the MSB of subgroup information, and / or LP-WUS indicate the LSB of subgroup information. Or the LO location in a cycle occupies the LSB of subgroup information, and / or the LP-WUS indicate the MSB of subgroup information.
[0481] In some embodiments, the RRC configure the segment index for G groups, or it is determined by default, e.g., 0~G-1.
[0482] In some embodiments, each LO segment / group corresponding to a subgroup index range, which is a subset of all the subgroups for one or more POs.
[0483] For example, one LO is divided into 4 groups / segments with index 0~3 and the LO is associated to one PO. The number of subgroups per PO is 32. in this case, the segment / group index 0 corresponds to subgroup 0~7, the segment / group index 1 corresponds to subgroup 8~15, the segment / group index 2 corresponds to subgroup 16~23, and the segment / group index 4 corresponds to subgroup 24~31.
[0484] In some embodiments, the LO location in a cycle indicates the PO index information if multiple POs are associated with LO. For example, there are 4 LO locations, corresponding to 4 POs. The first LO corresponds to the first PO, the second LO correspond to the second PO, the third LO corresponds to the third PO, and / or the forth LO corresponds to the forth PO. In another words, the first group of G groups is corresponding to the first PO in a PF, the second group of G groups is corresponding to the second PO in a PF, et cetera. e
[0485] In some embodiments, the number of groups G is equal to the number of POs per PF.
[0486] In some embodiments, the number of LO locations in a cycle is equal to the number of POs per PF.
[0487] In some embodiments, a segment of a LO is associated with a PO, a segment of a LO in a cycle is associated with a PO, a PO index. In some embodiments, the segments in a LO is 1: 1 associated / corresponds to POs.
[0488] In some embodiments, a segment index in a LO is associated with a PO or PO index, a segment index in a LO in a cycle is associated with a PO, or a PO index. In some embodiments, the segment indexes in a LO is 1: 1 associated / corresponds to POs.
[0489] In some embodiments, a segment of a LO corresponding to the LP-WUS in a cycle indicates a LSB or MSB of subgroup information, and / or the LP-WUS indicates other bits of the subgroup information; a segment in a LO corresponding to the LP-WUS in a cycle indicates a LSB or MSB of subgroup information, and / or the LP-WUS indicates other bits of the subgroup information;
[0490] In some embodiments, the POs referred to one or more POs. The starting PO is based on its UE-ID to obtain, the other POs are the next POs based on the configuration, e.g., PO configuration, including paging cycle, PO number of PF, or PF configuration.
[0491] Aspect 9: LP-SS
[0492] One aspect of the present disclosure relates to a wireless communication method. In an embodiment, the wireless communication method includes: receiving, by a wireless communication terminal from a wireless communication node, a LP-SS, on according to an offset and / or a periodicity; and performing, by the wireless communication terminal, measurement, or synchronization.
[0493] In some embodiments, the LP-SS is configured with a periodicity 320ms.
[0494] In some embodiments, the LP-SS has different length corresponding to different M parameter, where M is a parameter to indicate the number of OOK symbols in a OFDM symbol.
[0495] In some embodiments, the low-power synchronization signal (LP-SS) is used for sync or serving cell measurement. In some embodiments, the LP-SS is a binary signal which is based on OOK ON-OFF symbols or pattern.
[0496] In some embodiments, the LP-WUS is used for wake-up main radio to monitor the PDCCH. In some embodiments, the LP-WUS is a binary signal which is based on OOK ON-OFF symbols or pattern.
[0497] In some embodiments, for the LP-SS, it may be of 0-1 sequence or binary sequence. Some examples are provided below.
[0498] FIG. 13 illustrates 24-bits binary sequences based one some embodiments of the present disclosure.
[0499] FIG. 14 illustrates 32-bits binary sequences based one some embodiments of the present disclosure.
[0500] For example, 8 OFDM symbols or 32 OOK symbols may be allocated for LP-SS, and one of the 32-bits binary sequence is transmitted by the OOK symbols.
[0501] When one OFDM symbol includes M=4 OOK symbols, the first 4 elements of the 32-bits binary sequence are transmitted by the first OFDM symbol which includes 4 OOK symbols. The second 4 elements of the 32-bits binary sequence are transmitted by the second OFDM symbol which includes 4 OOK symbols, and so on. The 8th 4 elements of the 32-length binary sequence are transmitted by the 8th OFDM symbol which includes 4 OOK symbols.
[0502] In addition, “0” , “1” , and “-1” can be replaced with each other.
[0503] In some embodiments, "0" can be replaced with "-1" .
[0504] In some embodiments, "0" can be replaced with "1" , and "1" can be replaced with "-1 " .
[0505] FIG. 15 illustrates 8-bits binary sequences based one some embodiments of the present disclosure. In FIG. 15, 8-bits binary sequences S0 to S27 are illustrated.
[0506] For example, 8 OFDM symbols are allocated for LP-SS, and one of the 8-Length binary sequence is transmitted by the OOK symbols.
[0507] The first element of the 8-bits binary sequence is transmitted by the first OFDM symbol. The second element of the 8-bits binary sequence is transmitted by the second OFDM symbol, and so on, the 8th element of the 8-bits binary sequence is transmitted by the 8th OFDM symbol.
[0508] FIG. 16 relates to a diagram of a wireless communication terminal 30 according to an embodiment of the present disclosure. The wireless communication terminal 30 may be a tag, a mobile phone, a laptop, a tablet computer, an electronic book or a portable computer system and is not limited herein. The wireless communication terminal 30 may be used to implement the UE described in this disclosure. The wireless communication terminal 30 may include a processor 300 such as a microprocessor or Application Specific Integrated Circuit (ASIC) , a storage unit 310 and a communication unit 320. The storage unit 310 may be any data storage device that stores a program code 312, which is accessed and executed by the processor 300. Embodiments of the storage unit 310 include but are not limited to a subscriber identity module (SIM) , read-only memory (ROM) , flash memory, random-access memory (RAM) , hard-disk, and optical data storage device. The communication unit 320 may a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 300. In an embodiment, the communication unit 320 transmits and receives the signals via at least one antenna 322 or via wiring.
[0509] In an embodiment, the storage unit 310 and the program code 312 may be omitted and the processor 300 may include a storage unit with stored program code.
[0510] The processor 300 may implement any one of the steps or operations in exemplified embodiments on the wireless communication terminal 30, e.g., by executing the program code 312.
[0511] The communication unit 320 may be a transceiver. The communication unit 320 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals to and from a wireless communication node.
[0512] In some embodiments, the wireless communication terminal 30 may be used to perform the operations of the UE described in this disclosure. In some embodiments, the processor 300 and the communication unit 320 collaboratively perform the operations described in this disclosure. For example, the processor 300 performs operations and transmit or receive signals, message, and / or information through the communication unit 320.
[0513] FIG. 17 relates to a diagram of a wireless communication node 40 according to an embodiment of the present disclosure. The wireless communication node 40 may be a satellite, a base station (BS) , a gNB, a network entity, a Domain Name System (DNS) server, a Mobility Management Entity (MME) , Serving Gateway (S-GW) , Packet Data Network (PDN) Gateway (P-GW) , a radio access network (RAN) , a next generation RAN (NG-RAN) , a data network, a core network, a communication node in the core network, or a Radio Network Controller (RNC) , and is not limited herein. In addition, the wireless communication node 40 may include (perform) at least one network function such as an access and mobility management function (AMF) , a session management function (SMF) , a user place function (UPF) , a policy control function (PCF) , an application function (AF) , etc. The wireless communication node 40 may be used to implement the BS described in this disclosure. The wireless communication node 40 may include a processor 400 such as a microprocessor or ASIC, a storage unit 410 and a communication unit 420. The storage unit 410 may be any data storage device that stores a program code 412, which is accessed and executed by the processor 400. Examples of the storage unit 410 include but are not limited to a SIM, ROM, flash memory, RAM, hard-disk, and optical data storage device. The communication unit 420 may be a transceiver and is used to transmit and receive signals (e.g., messages or packets) according to processing results of the processor 400. In an embodiment, the communication unit 420 transmits and receives the signals via at least one antenna 422 or via wiring.
[0514] In an embodiment, the storage unit 410 and the program code 412 may be omitted. The processor 400 may include a storage unit with stored program code.
[0515] The processor 400 may implement any steps or operations described in exemplified embodiments on the wireless communication node 40, e.g., via executing the program code 412.
[0516] The communication unit 420 may be a transceiver. The communication unit 420 may as an alternative or in addition be combining a transmitting unit and a receiving unit configured to transmit and to receive, respectively, signals, messages, or information to and from a wireless communication node or a wireless communication terminal.
[0517] In some embodiments, the wireless communication node 40 may be used to perform the operations of the base station described in this disclosure. In some embodiments, the processor 400 and the communication unit 420 collaboratively perform the operations described in this disclosure. For example, the processor 400 performs operations and transmit or receive signals through the communication unit 420.
[0518] A wireless communication method is also provided according to an embodiment of the present disclosure. In an embodiment, the wireless communication method may be performed by using a wireless communication terminal (e.g., a UE) . In an embodiment, the wireless communication terminal may be implemented by using the wireless communication terminal 30 described in this disclosure, but is not limited thereto.
[0519] Referring to FIG. 18, in an embodiment, the wireless communication method includes: receiving, by a wireless communication terminal from a wireless communication node, a low power wake-up signal, LP-WUS, on one or more monitoring occasions, MOs, according to at least an offset; and performing, by the wireless communication terminal, a behavior based on the LP-WUS.
[0520] Details in this regard can be ascertained with reference to the paragraphs above, and will not be repeated herein.
[0521] Another wireless communication method is also provided according to an embodiment of the present disclosure. In an embodiment, the wireless communication method may be performed by using a wireless communication node (e.g., a BS) . In an embodiment, the wireless communication node may be implemented by using the wireless communication node 40 described in this disclosure, but is not limited thereto.
[0522] Referring to FIG. 19, in an embodiment, the wireless communication method includes: transmitting, by a wireless communication node to a wireless communication terminal a low power wake-up signal, LP-WUS, corresponding to one or more monitoring occasions, MOs, according to at least an offset to trigger the wireless communication terminal performing a behavior based on the LP-WUS.
[0523] Details in this regard can be ascertained with reference to the paragraphs above, and will not be repeated herein.
[0524] In some embodiments, the wireless communication terminal used in the present disclosure may indicate the UE described above.
[0525] In some embodiments, the wireless communication node used in the present disclosure may indicate the BS described above.
[0526] In some embodiments, the behavior used in the present disclosure comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.
[0527] In some embodiments, the control channel used in the present disclosure may indicate the PDCCH described above.
[0528] While various embodiments of the present disclosure have been described above, it should be understood that they have been presented by way of example only, and not by way of limitation. Likewise, the various diagrams may depict an example architecture or configuration, which are provided to enable persons of ordinary skill in the art to understand exemplary features and functions of the present disclosure. Such persons would understand, however, that the present disclosure is not restricted to the illustrated example architectures or configurations, but can be implemented using a variety of alternative architectures and configurations. Additionally, as would be understood by persons of ordinary skill in the art, one or more features of one embodiment can be combined with one or more features of another embodiment described herein. Thus, the breadth and scope of the present disclosure should not be limited by any one of the above-described exemplary embodiments.
[0529] It is understood that, in the present disclosure, the term “and / or” or symbol “ / ” may include any and all combinations of one or more of the associated listed items. For example, A and / or B and / or C includes any and all combinations of one or more of A, B, and C, including A, B, C, A and B, A and C, B and C, and a combination of A and B and C. Likewise, A / B / C includes any and all combinations of one or more of A, B, and C, including A, B, C, A and B, A and C, B and C, and a combination of A and B and C.
[0530] It is also understood that any reference to an element herein using a designation such as "first, " "second, " and so fourth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.
[0531] Additionally, a person having ordinary skill in the art would understand that information and signals can be represented using any one of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits and symbols, for example, which may be referenced in the above description can be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.
[0532] A skilled person would further appreciate that any one of the various illustrative logical blocks, units, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software" or a "software unit” ) , or any combination of these techniques.
[0533] To clearly illustrate this interchangeability of hardware, firmware and software, various illustrative components, blocks, units, circuits, operations, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware or software, or a combination of these techniques, depends upon the particular application and design constraints imposed on the overall system. Skilled artisans can implement the described functionality in various ways for each particular application, but such implementation decisions do not cause a departure from the scope of the present disclosure. In accordance with various embodiments, a processor, device, component, circuit, structure, machine, unit, etc. can be configured to perform one or more of the functions described herein. The term “configured to” or “configured for” as used herein with respect to a specified operation or function refers to a processor, device, component, circuit, structure, machine, unit, etc. that is physically constructed, programmed and / or arranged to perform the specified operation or function.
[0534] Furthermore, a skilled person would understand that various illustrative logical blocks, units, devices, components and circuits described herein can be implemented within or performed by an integrated circuit (IC) that can include a general-purpose processor, a digital signal processor (DSP) , an application specific integrated circuit (ASIC) , a field programmable gate array (FPGA) or other programmable logic device, or any combination thereof. The logical blocks, units, and circuits can further include antennas and / or transceivers to communicate with various components within the network or within the device. A general-purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine. A processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein. If implemented in software, the functions can be stored as one or more instructions or code on a computer-readable medium. Thus, the steps or operations of a method or algorithm disclosed herein can be implemented as software stored on a computer-readable medium.
[0535] Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another. A storage media can be any available media that can be accessed by a computer. By way of example, and not limitation, such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.
[0536] In this document, the term "unit" as used herein, refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various units are described as discrete units; however, as would be apparent to one of ordinary skill in the art, two or more units may be combined to form a single unit that performs the associated functions according to embodiments of the present disclosure.
[0537] Additionally, memory or other storage, as well as communication components, may be employed in embodiments of the present disclosure. It will be appreciated that, for clarity purposes, the above description has described embodiments of the present disclosure with reference to different functional units and processors. However, it will be apparent that any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present disclosure. For example, functionality illustrated to be performed by separate processing logic elements, or controllers, may be performed by the same processing logic element, or controller. Hence, references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.
[0538] Various modifications to the implementations described in this disclosure will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other implementations without departing from the scope of the claims. Thus, the disclosure is not intended to be limited to the implementations shown herein, but is to be accorded the widest scope consistent with the novel features and principles disclosed herein, as recited in the claims below.
Claims
1.A wireless communication method comprising:receiving, by a wireless communication terminal from a wireless communication node, a low power wake-up signal, LP-WUS, on one or more monitoring occasions, MOs, according to at least an offset; andperforming, by the wireless communication terminal, a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.2.The wireless communication method of claim 1, wherein the LP-WUS indicates one or more subgroups, and at least one of the following is satisfied:different range via an LP-WUS indication corresponds to different number of subgroups;different indication values in a range corresponding to different subgroup indexes;an LP-WUS indication comprises at least one of subgroup indication information, paging occasion, PO, indication information, paging frame, PF, indication information, grouping information of subgroups for one or more POs and / or PFs;an LP-WUS indication comprises X1 MSB bits ‘0’ s, 1 bit ‘1’ , and X2 LSB bits for subgroup indication information or subgroup index;an LP-WUS indication comprises an offset, X2 LSB bits for subgroup indication information or subgroup index;based on different configured number of subgroups, the LP-WUS comprises X1 MSB bits ‘0’ s, 1 bit ‘1’ , X2 LSB bits for subgroup indication information or subgroup index;based on different configured number of subgroups, the LP-WUS comprises an offset, and X2 LSB bits for subgroup indication information or subgroup index;an LP-WUS indication value is determined based on at least one of a starting subgroup index, a number of subgroups, a maximum number of subgroups per PO, a number of POs, a number of PFs, a PO index, a PF index, a number of groups, a group index, or a payload size of the LP-WUS, wherein the LP-WUS payload size is 6, 7, 8 or 9 bits.3.The wireless communication method of claim 1 or 2, wherein the LP-WUS indicates one or more subgroups, and at least one of the following is satisfied:a value range between 0 and C (N, 1) -1 corresponds to one subgroup;a value range between C (N, 1) and C (N, 1) +C (N, 2) -1 corresponds to two subgroups, where C is a combination function, and N denotes a number of subgroups per PO;the LP-WUS with all ‘1’ s or ‘0’ s corresponds to all subgroups for one or more POs;a value range corresponding to i subgroups is betweenwherein m is 2^x, x>=0, and x is an integer, and 2^n corresponds to a number of subgroups per PO;the LP-WUS indication value is obtained based onorthe LP-WUS indication value isorwherein h is a starting subgroup index, i is a number of subgroups indicated by the LP-WUS, i=2^j, L=n+1, and a number of subgroups per PO is 2^n.4.The wireless communication method of any of claims 1 to 3, wherein the LP-WUS comprises subgroup indication information and PO and / or PF indication information, and at least one of the following is satisfied:in response to the PO and / or PF indication information indicates a first value, the subgroup indication information indicates all subgroups for one or more POs or one or more PFs;in response to the PO and / or PF indication information indicates a second value or other value than a first value, the subgroup indication field corresponds to one or more subgroups for one PO or one PF;in response to the subgroup indication information is a first value, the PO and / or PF indication information indicates all subgroups for one or more POs or one or more PFs;in response to the subgroup indication field is a second value or other value than first value, the PO and / or PF indication information indicates a PO index;subgroup indication information is determined by a filed in the LP-WUS; orPO and / or PF indication information is determined by a field in the LP-WUS.5.The wireless communication method of any of claims 1 to 4, wherein at least one of the following is satisfied:the LP-WUS with all 0s indicates all subgroups for all POs in one or more PFs;the LP-WUS with all 0s indicates all subgroups for one or more POs;the LP-WUS with all 0s indicates all subgroups for one or more POs in a PF;6 bits in the LP-WUS with 000001 indicates 32 subgroups;6 bits in the LP-WUS with 00001x indicates 16 subgroups;6 bits in the LP-WUS with 0001xx indicates 8 subgroups;6 bits in the LP-WUS with 001xxx indicates 4 subgroups;6 bits in the LP-WUS with 01xxxx indicates 2 subgroups; or6 bits in the LP-WUS with 1xxxxx indicates 1 subgroup,wherein x is 0 or 1.6.The wireless communication method of any of claims 1 to 5, wherein the LP-WUScomprises PO indication information, wherein at least one of the following is satisfied: the PO indication information corresponds to at least one of :a first PO,a first PO and second PO,a first PO, second PO, and third PO, ora first PO, second PO, third PO and fourth PO; orthe PO indication information is 1 or 2 LSB or MSB of the LP-WUS; orthe PO indication information comprises a number of POs or PO indexes.7.The wireless communication method of any of claims 1 to 6, wherein the LP-WUS comprises grouping information of subgroups for one or more POs and / or PFs, wherein at least one of the following is satisfied:the grouping information comprises 1or 2 LSB or MSB of the LP-WUS;the grouping information indicates 1, 2, or 4 groups; orthe grouping information corresponds to a group of subgroups.8.The wireless communication method of any of claims 1 to 7, wherein the wireless communication terminal performing the behavior comprises at least one of:starting the timer but not monitoring the control channel;starting the timer for monitoring the control channel;starting the timer;monitoring the control channel;monitoring the control channel associated to an initial DL BWP with CD-SSB;monitoring the control channel associated to an active BWP; ormonitoring a paging control channel.9.The wireless communication method of any of claims 1 to 8, wherein at least one of the following is satisfied,when one bit in the LP-WUS indicates ‘1’ , or 2 bits in the LP-WUS indicates ‘11’ , ‘10’ , ‘01’ for one or more groups of cells, the wireless communication terminal starts the timer;when one bit in the LP-WUS indicates ‘0’ , or two bits in the LP-WUS indicates ‘00’ , ‘10’ , ‘01’ for one or more groups of cells, the wireless communication terminal starts the timer and not monitors the control channel;when the LP-WUS indicates a wake-up for one or more groups of cells, the wireless communication terminal starts the timer; orwhen the LP-WUS indicates a wake-up for one or more groups of cells, the wireless communication terminal starts the timer and does not monitor the control channel.10.The wireless communication method of claim 9, wherein at least one of the following is satisfied:the wireless communication terminal reports the LP-WUS to a higher layer before starting the timer;one or more groups of cells comprise one or more groups of carriers, Scells, or serving cells, or one or more DRX groups of serving cells; orthe one bit in the LP-WUS is a LSB or MSB or two bits in the LP-WUS are LSBs or MSBs.11.The wireless communication method of any of claims 1 to 10, wherein at least one of the following is satisfied:in response to a periodicity for the LP-WUS is the same as a long Discontinuous Reception, DRX, cycle, the LP-WUS is used to trigger a starting of a first timer;in response to a periodicity for the LP-WUS is shorter than a long Discontinuous Reception, DRX, cycle, the LP-WUS is used to trigger a starting of a second timer;in response to a periodicity for the LP-WUS is shorter than a long DRX cycle, and a Radio Resource Control, RRC, configuration indicates that a first timer is not triggered by the LP-WUS, the LP-WUS is used to trigger a starting of the second timer;in response to a periodicity for the LP-WUS is shorter than a long DRX cycle, and a Radio Resource Control, RRC, configuration indicate that a first timer can be triggered by the LP-WUS, the LP-WUS is used to trigger a starting of the second timer or a first timer;if a second timer is configured, the LP-WUS is used to trigger a starting of the second timer, or a first timer according to an RRC indication and / or LP-WUS location;a first feature corresponding to a periodicity is the same as a DRX cycle, wherein the first feature associates with a first timer; ora second feature corresponding to a periodicity is no larger than a DRX cycle, wherein the second feature associates with a second timer.12.The wireless communication method of claim 11, wherein the first timer is triggered by the LP-WUS in a nearest LP-WUS monitoring window or in one or more MOs near to a starting of the first timer, or in a configured time duration, time window, and / or one or more monitoring occasions before the starting of the first timer.13.The wireless communication method of any of claims 1 to 12, wherein the wireless communication terminal is configured with one, two, or more monitoring spaces for the LP-WUS, and at least one of the following is satisfied:a monitoring space is associated or configured with a first timer and / or second timer;a monitoring space is associated or configured with a Transmission Configuration Indication, TCI, state;a monitoring space is associated or configured with a window, or one or more monitoring occasions;a monitoring space is associated or configured with frequency resources for the LP-WUS;a monitoring space is associated or configured with a monitoring space ID;a monitoring space is associated or configured with a type;a monitoring space is associated or configured with a periodicity; ora monitoring space is associated or configured with at least one offset.14.The wireless communication method of any of claims 1 to 13, wherein the one or more monitoring occasions are overlapping with a signal, channel, and / or gap, and the wireless communication terminal performs a collision handling behavior.15.The wireless communication method of claim 14, wherein the collision handling behavior comprises at least one of:the wireless communication terminal is not required to monitor the LP-WUS;the wireless communication terminal is prioritized to monitor the LP-WUS;whether the wireless communication terminal monitors the LP-WUS is up to an implementation;the wireless communication terminal processes the signal, channel, and / or gap; orwhether the wireless communication terminal monitors the LP-WUS is based on UE capability.16.The wireless communication method of 14 or 15, wherein the one or more monitoring occasions overlapping with the signal, channel, and / or gap comprising :the one or more monitoring occasions are overlapping with a C-DRX active time;monitoring occasions for the LP-WUS are overlapping with a DL signal and / or channel;monitoring occasions for the LP-WUS are overlapping with a UL signal and / or channel; ormonitoring occasions for the LP-WUS are overlapping with at least one of a bandwidth part, BWP, switching time, measurement gap, uplink switching gap, or DL-UL switching gap.17.The wireless communication method of any of claims 1 to 16, wherein at least one of the following is satisfied:in response to LP-WUS MOs for a beam being divided into G groups, G is equal to a number of POs per PF;in response to LP-WUS MOs for a beam being divided into G groups, G is equal to a number of POs;a number of segments of a LO in a cycle is equal to a number of POs per PF;a number of segments of a LO in a cycle is equal to a number of POs;a segment of a LO corresponding to the LP-WUS in a cycle is associated to a PO;a segment of a LO corresponding to the LP-WUS in a cycle indicates a first part of subgroup information, and / or the LP-WUS indicates a second part of the subgroup information;a segment of a LO corresponding to the LP-WUS in a cycle indicates a LSB or MSB of subgroup information, and / or the LP-WUS indicates other bits of the subgroup information;a segment of a LO corresponding to a subgroup index range;a segment of a LO is associated with a PO; ora segment index of a LO is associated with a PO index.18.The wireless communication method of any of claims 1 to 17, wherein at least one of the following is satisfied:the offset is defined between a LO and a PO or PF;the offset is defined between an ending MO in a LO and a PO or PF;the offset is defined between a window and a timer; orthe offset is defined between an ending MO in a window and a timer.19.A wireless communication method comprising:transmitting, by a wireless communication node to a wireless communication terminal a low power wake-up signal, LP-WUS, corresponding to one or more monitoring occasions, MOs, according to at least an offset to trigger the wireless communication terminal performing a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.20.The wireless communication method of claim 19, wherein the LP-WUS indicates one or more subgroups, and at least one of the following is satisfied:different range via an LP-WUS indication corresponds to different number of subgroups;different indication values in a range corresponding to different subgroup indexes;an LP-WUS indication comprises at least one of subgroup indication information, paging occasion, PO, indication information, paging frame, PF, indication information, grouping information of subgroups for one or more POs and / or PFs;an LP-WUS indication comprises X1 MSB bits ‘0’ s, 1 bit ‘1’ , and X2 LSB bits for subgroup indication information or subgroup index;an LP-WUS indication comprises an offset, X2 LSB bits for subgroup indication information or subgroup index;based on different configured number of subgroups, the LP-WUS comprises X1 MSB bits ‘0’ s, 1 bit ‘1’ , X2 LSB bits for subgroup indication information or subgroup index;based on different configured number of subgroups, the LP-WUS comprises an offset, and X2 LSB bits for subgroup indication information or subgroup index;an LP-WUS indication value is determined based on at least one of a starting subgroup index, a number of subgroups, a maximum number of subgroups per PO, a number of POs, a number of PFs, a PO index, a PF index, a number of groups, a group index, or a payload size of the LP-WUS, wherein the LP-WUS payload size is 6, 7, 8 or 9 bits.21.The wireless communication method of claim 19 or 20, wherein the LP-WUS indicates one or more subgroups, and at least one of the following is satisfied:a value range between 0 and C (N, 1) -1 corresponds to one subgroup;a value range between C (N, 1) and C (N, 1) +C (N, 2) -1 corresponds to two subgroups, where C is a combination function, and N denotes a number of subgroups per PO;the LP-WUS with all ‘1’ s or ‘0’ s corresponds to all subgroups for one or more POs;a value range corresponding to i subgroups is betweenwherein m is 2^x, x>=0, and x is an integer, and 2^n corresponds to a number of subgroups per PO;the LP-WUS indication value is obtained based onorthe LP-WUS indication value isorwherein h is a starting subgroup index, i is a number of subgroups indicated by the LP-WUS, i=2^j, L=n+1, and a number of subgroups per PO is 2^n.22.The wireless communication method of any of claims 19 to 21, wherein the LP-WUS comprises subgroup indication information and PO and / or PF indication information, and at least one of the following is satisfied:in response to the PO and / or PF indication information indicates a first value, the subgroup indication information indicates all subgroups for one or more POs or one or more PFs;in response to the PO and / or PF indication information indicates a second value or other value than a first value, the subgroup indication field corresponds to one or more subgroups for one PO or one PF;in response to the subgroup indication information is a first value, the PO and / or PF indication information indicates all subgroups for one or more POs or one or more PFs;in response to the subgroup indication field is a second value or other value than first value, the PO and / or PF indication information indicates a PO index;subgroup indication information is determined by a filed in the LP-WUS; orPO and / or PF indication information is determined by a field in the LP-WUS.23.The wireless communication method of any of claims 19 to 22, wherein at least one of the following is satisfied:the LP-WUS with all 0s indicates all subgroups for all POs in one or more PFs;the LP-WUS with all 0s indicates all subgroups for one or more POs;the LP-WUS with all 0s indicates all subgroups for one or more POs in a PF;6 bits in the LP-WUS with 000001 indicates 32 subgroups;6 bits in the LP-WUS with 00001x indicates 16 subgroups;6 bits in the LP-WUS with 0001xx indicates 8 subgroups;6 bits in the LP-WUS with 001xxx indicates 4 subgroups;6 bits in the LP-WUS with 01xxxx indicates 2 subgroups; or6 bits in the LP-WUS with 1xxxxx indicates 1 subgroup,wherein x is 0 or 1.24.The wireless communication method of any of claims 19 to 23, wherein the LP-WUScomprises PO indication information, wherein at least one of the following is satisfied: the PO indication information corresponds to at least one of:a first PO,a first PO and second PO,a first PO, second PO, and third PO, ora first PO, second PO, third PO and fourth PO; orthe PO indication information is 1 or 2 LSB or MSB of the LP-WUS; orthe PO indication information comprises a number of POs or PO indexes.25.The wireless communication method of any of claims 19 to 24, wherein the LP-WUS comprises grouping information of subgroups for one or more POs and / or PFs, wherein at least one of the following is satisfied:the grouping information comprises 1or 2 LSB or MSB of the LP-WUS;the grouping information indicates 1, 2, or 4 groups; orthe grouping information corresponds to a group of subgroups.26.The wireless communication method of any of claims 19 to 25, wherein the wireless communication terminal performing the behavior comprises at least one of:starting the timer but not monitoring the control channel;starting the timer for monitoring the control channel;starting the timer;monitoring the control channel;monitoring the control channel associated to an initial DL BWP with CD-SSB;monitoring the control channel associated to an active BWP; ormonitoring a paging control channel.27.The wireless communication method of any of claims 19 to 26, wherein at least one of the following is satisfied,when one bit in the LP-WUS indicates ‘1’ , or 2 bits in the LP-WUS indicates ‘11’ , ‘10’ , ‘01’ for one or more groups of cells, the wireless communication terminal starts the timer;when one bit in the LP-WUS indicates ‘0’ , or two bits in the LP-WUS indicates ‘00’ , ‘10’ , ‘01’ for one or more groups of cells, the wireless communication terminal starts the timer and not monitors the control channel;when the LP-WUS indicates a wake-up for one or more groups of cells, the wireless communication terminal starts the timer; orwhen the LP-WUS indicates a wake-up for one or more groups of cells, the wireless communication terminal starts the timer and does not monitor the control channel.28.The wireless communication method of claim 27, wherein at least one of the following is satisfied:the wireless communication terminal reports the LP-WUS to a higher layer before starting the timer;one or more groups of cells comprise one or more groups of carriers, Scells, or serving cells, or one or more DRX groups of serving cells; orthe one bit in the LP-WUS is a LSB or MSB or two bits in the LP-WUS are LSBs or MSBs.29.The wireless communication method of any of claims 19 to 28, wherein at least one of the following is satisfied:in response to a periodicity for the LP-WUS is the same as a long Discontinuous Reception, DRX, cycle, the LP-WUS is used to trigger a starting of a first timer;in response to a periodicity for the LP-WUS is shorter than a long Discontinuous Reception, DRX, cycle, the LP-WUS is used to trigger a starting of a second timer;in response to a periodicity for the LP-WUS is shorter than a long DRX cycle, and a Radio Resource Control, RRC, configuration indicates that a first timer is not triggered by the LP-WUS, the LP-WUS is used to trigger a starting of the second timer;in response to a periodicity for the LP-WUS is shorter than a long DRX cycle, and a Radio Resource Control, RRC, configuration indicate that a first timer can be triggered by the LP-WUS, the LP-WUS is used to trigger a starting of the second timer or a first timer;if a second timer is configured, the LP-WUS is used to trigger a starting of the second timer, or a first timer according to an RRC indication and / or LP-WUS location;a first feature corresponding to a periodicity is the same as a DRX cycle, wherein the first feature associates with a first timer; ora second feature corresponding to a periodicity is no larger than a DRX cycle, wherein the second feature associates with a second timer.30.The wireless communication method of claim 29, wherein the first timer is triggered by the LP-WUS in a nearest LP-WUS monitoring window or in one or more MOs near to a starting of the first timer, or in a configured time duration, time window, and / or one or more monitoring occasions before the starting of the first timer.31.The wireless communication method of any of claims 19 to 30, wherein the wireless communication terminal is configured with one, two, or more monitoring spaces for the LP-WUS, and at least one of the following is satisfied:a monitoring space is associated or configured with a first timer and / or second timer;a monitoring space is associated or configured with a Transmission Configuration Indication, TCI, state;a monitoring space is associated or configured with a window, or one or more monitoring occasions;a monitoring space is associated or configured with frequency resources for the LP-WUS;a monitoring space is associated or configured with a monitoring space ID;a monitoring space is associated or configured with a type;a monitoring space is associated or configured with a periodicity; ora monitoring space is associated or configured with at least one offset.32.The wireless communication method of any of claims 19 to 31, wherein the one or more monitoring occasions are overlapping with a signal, channel, and / or gap, and the wireless communication terminal performs a collision handling behavior.33.The wireless communication method of claim 32, wherein the collision handling behavior comprises at least one of:the wireless communication terminal is not required to monitor the LP-WUS;the wireless communication terminal is prioritized to monitor the LP-WUS;whether the wireless communication terminal monitors the LP-WUS is up to an implementation;the wireless communication terminal processes the signal, channel, and / or gap; orwhether the wireless communication terminal monitors the LP-WUS is based on UE capability.34.The wireless communication method of 32 or 33, wherein the one or more monitoring occasions overlapping with the signal, channel, and / or gap comprising :the one or more monitoring occasions are overlapping with a C-DRX active time;monitoring occasions for the LP-WUS are overlapping with a DL signal and / or channel;monitoring occasions for the LP-WUS are overlapping with a UL signal and / or channel; ormonitoring occasions for the LP-WUS are overlapping with at least one of a bandwidth part, BWP, switching time, measurement gap, uplink switching gap, or DL-UL switching gap.35.The wireless communication method of any of claims 19 to 34, wherein at least one of the following is satisfied:in response to LP-WUS MOs for a beam being divided into G groups, G is equal to a number of POs per PF;in response to LP-WUS MOs for a beam being divided into G groups, G is equal to a number of POs;a number of segments of a LO in a cycle is equal to a number of POs per PF;a number of segments of a LO in a cycle is equal to a number of POs;a segment of a LO corresponding to the LP-WUS in a cycle is associated to a PO;a segment of a LO corresponding to the LP-WUS in a cycle indicates a first part of subgroup information, and / or the LP-WUS indicates a second part of the subgroup information;a segment of a LO corresponding to the LP-WUS in a cycle indicates a LSB or MSB of subgroup information, and / or the LP-WUS indicates other bits of the subgroup information;a segment of a LO corresponding to a subgroup index range;a segment of a LO is associated with a PO; ora segment index of a LO is associated with a PO index.36.The wireless communication method of any of claims 19 to 35, wherein at least one of the following is satisfied:the offset is defined between a LO and a PO or PF;the offset is defined between an ending MO in a LO and a PO or PF;the offset is defined between a window and a timer; orthe offset is defined between an ending MO in a window and a timer.37.A wireless communication terminal, comprising:a communication unit; anda processor configured for: receiving, via the communication unit from a wireless communication node, a low power wake-up signal, LP-WUS, on one or more monitoring occasions, MOs, according to at least an offset; and performing a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.38.The wireless communication terminal of claim 37, wherein the processor is further configured to perform a wireless communication method of any of claims 2 to 18.39.A wireless communication node, comprising:a communication unit; anda processor configured for: transmitting, via the communication unit to a wireless communication terminal a low power wake-up signal, LP-WUS, corresponding to one or more monitoring occasions, MOs, according to at least an offset to trigger the wireless communication terminal performing a behavior based on the LP-WUS, wherein the behavior comprises monitoring a control channel, waking up, switching a BWP, carrier, and / or cell, activating or deactivating a BWP, carrier, and / or cell, activating or deactivating a RRC configuration, and / or starting a timer.40.The wireless communication node of claim 39, wherein the processor is further configured to perform a wireless communication method of any of claims 20 to 36.41.A computer program product comprising a computer-readable program medium code stored thereupon, the code, when executed by a processor, causing the processor to implement a wireless communication method recited in any one of claims 1 to 36.