Method executed by user equipment and user equipment

Abstract

The invention provides a method executed by user equipment and the user equipment. The method comprises the following steps: determining a reference PO and / or a reference PF in a paging cycle period for determining the position of an LO according to the number P of PO associated with one LO and / or the number Q of LO associated with one PO determined by UE according to parameters in a system configuration message; determining an offset value for determining an offset of the LO relative to the reference PO and / or the reference PF; and determining the position of the LO according to the offset value and the reference PO and / or the reference PF, determining the reference PF comprises determining a system frame number (SFN) used by the reference PF, determining the reference PO comprises determining a sequence number of the reference PO in the PF, and determining the position of the LO according to the sequence number of the reference PO in the PF. Determining an offset value for determining an offset of the LO relative to the reference PO and / or reference PF includes determining a sequence number of the used offset value in a plurality of offset values of the network configuration. As a result, reliability can be ensured while reducing the power consumption of the UE.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and more specifically to a method for determining downlink resources performed by a user equipment and a corresponding user equipment. Background Technology

[0002] The introduction in this section can help to better understand the various aspects of this disclosure. Therefore, the statements in this section should be read in this context and should not be construed as an admission of what is prior art or what is not prior art.

[0003] In 5G systems, besides latency, reliability, and availability, the energy efficiency of user equipment (UEs) is also a key factor. Typically, UEs consume tens of milliwatts in RRC idle or inactive states and hundreds of milliwatts in RRC connected states. Depending on the application scenario, UEs may need to be charged weekly or daily. Therefore, further reducing UE power consumption and extending battery life are essential for improving energy efficiency and achieving a better user experience. For devices using micro-batteries or those where charging is inconvenient, such as sensors, automatic controllers, and wearable devices, where standby time may be 1-2 weeks or longer, improving their energy efficiency is even more critical.

[0004] User equipment (UE) typically saves power using discontinuous reception (DRX). To ensure connectivity, UE needs to periodically wake up in each DRX cycle to detect the control channel. Even when there is no data transmission for the UE, there is periodic power consumption. If the UE could only wake up when there is a service transmission requirement, its power consumption would be significantly reduced. Therefore, the UE can be configured with a low-power auxiliary receiver to detect the wake-up signal (LP-WUS) sent by the base station. The UE's primary receiver can remain in a low-power state (e.g., sleep state) until the low-power receiver receives the LP-WUS signal and wakes up the primary receiver to perform the corresponding data processing. This allows the UE's service processing requirements to be met with lower power consumption. To achieve this design goal, several problems need to be solved in the system, such as how to find a LO based on the UE's PO and several offset parameters configured by the base station when the idle UE searches for LP-WUS in the time domain, and how to wake up the associated PO after detecting LP-WUS in the LO. Summary of the Invention

[0005] To address at least some of the aforementioned problems, this disclosure provides a method and a user equipment that are performed by a user equipment, enabling the UE to find the location of the corresponding LO when searching for LP-WUS in the time domain for transmitting information indicating whether the UE is performing paging PDCCH detection, thereby ensuring reliability while reducing the UE's power consumption.

[0006] According to this disclosure, a method executed by a User Equipment (UE) is proposed, comprising: determining a reference PO and / or a reference paging frame PF in a paging cycle for determining the location of the LO, based on the number P of paging opportunities PO associated with a LO and / or the number Q of LOs associated with a PO determined by the UE according to parameters in a system configuration message, wherein the LO is a set of Low Power Wake-up Signal (LP-WUS) Detection Opportunities (LMOs); determining an offset value for determining the offset of the LO relative to the reference PO and / or the reference PF; and determining the location of the LO based on the offset value and the reference PO and / or the reference PF, wherein determining the reference PF includes determining the system frame number (SFN) used by the reference PF, determining the reference PO includes determining the sequence number of the reference PO in the PF, and determining the offset value for determining the offset of the LO relative to the reference PO and / or the reference PF includes determining the sequence number of the offset value used among a plurality of offset values ​​configured in the network.

[0007] Furthermore, according to this disclosure, a user equipment is proposed, comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the methods described above.

[0008] Invention Effects

[0009] According to this disclosure, the UE can find the location of the corresponding LO when searching for LP-WUS in the time domain for information indicating whether the UE is performing paging PDCCH detection, thereby ensuring reliability while reducing the UE's power consumption. Attached Figure Description

[0010] The above and other features of this disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, wherein:

[0011] Figure 1 This is a schematic diagram illustrating the PO of a UE during a paging cycle according to an embodiment of the present disclosure.

[0012] Figure 2 This is a schematic diagram illustrating an example of grouping users on a single product point (PO).

[0013] Figure 3 This is a schematic diagram illustrating the basic process of a method performed by a user equipment (UE) in an embodiment of the present disclosure.

[0014] Figure 4 This is a schematic diagram illustrating an example of determining the location of the LO in an embodiment of this disclosure.

[0015] Figure 5 This is a schematic diagram illustrating an example of determining the location of the LO in an embodiment of this disclosure.

[0016] Figure 6 This is a schematic diagram illustrating an example of determining the location of the LO in an embodiment of this disclosure.

[0017] Figure 7 This is a schematic diagram illustrating an example of determining the location of the LO in an embodiment of this disclosure.

[0018] Figure 8 This is a schematic diagram illustrating an example of determining the location of the LO in an embodiment of this disclosure.

[0019] Figure 9 This is a block diagram illustrating a user equipment (UE) according to an embodiment of the present disclosure. Detailed Implementation

[0020] The present disclosure will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the present disclosure should not be limited to the specific embodiments described below, which are provided merely as examples to convey the scope of the subject matter to those skilled in the art. Furthermore, for the sake of simplicity, detailed descriptions of well-known technologies not directly related to the present disclosure have been omitted to prevent confusion in understanding the present disclosure.

[0021] Generally, unless a different meaning is clearly given and / or implied in the context of its use, all terms used in this disclosure shall be interpreted according to their ordinary meaning in the relevant art. Unless expressly stated otherwise, all references to an element, device, apparatus, component, part, step, etc., shall be publicly interpreted as referring to at least one instance of that element, device, apparatus, component, part, step, etc. Unless it must be explicitly described that a step follows or precedes another step and / or implicitly imply that a step must follow or precede another step, the steps of any method in the embodiments of this disclosure need not be performed in the exact order disclosed. Where appropriate, any feature of any embodiment of this disclosure may be applied to any other embodiment. Similarly, any advantage of any embodiment may be applied to any other embodiment, and vice versa.

[0022] The following description uses 5G / NR mobile communication systems and their subsequent evolutions as example application environments to specifically describe several implementations according to this disclosure. However, it should be noted that this disclosure is not limited to the following implementations, but is applicable to many other wireless communication systems, such as communication systems after 5G and 4G and 3G mobile communication systems before 5G, 802.11 wireless networks, etc.

[0023] The following describes some of the terminology used in this disclosure. Unless otherwise specified, the terminology used in this disclosure is as defined herein. The terminology given in this disclosure may be used differently in 4G / LTE, 4G+ / LTE-Advanced, LTE-Advanced Pro, 5G / NR and later wireless communication systems or other communication systems, but a uniform terminology is used in this disclosure to simplify description. When applying the methods and processes of this disclosure to a specific system, the terminology used in that system can be substituted.

[0024] 3GPP: 3rd Generation Partnership Project

[0025] LTE: Long Term Evolution

[0026] NR: New Radio, New Wireless, New Air Interface

[0027] UE: User Equipment

[0028] gNB: NR base station

[0029] BWP: Bandwidth Part

[0030] SFN: System flame number, system frame number

[0031] OFDM: Orthogonal Frequency Division Multiplexing

[0032] SCS: Sub-carrier spacing

[0033] RB: Resource Block

[0034] TDD: Time Division Duplexing

[0035] FDD: Frequency Division Duplexing

[0036] CSI: Channel State Information

[0037] DCI: Downlink Control Information

[0038] CRC: Cyclic Redundancy Check

[0039] QCL: Quasi co-location

[0040] HARQ: Hybrid Automatic Repeat Request.

[0041] CORESET: Control resource set.

[0042] MIB: Master Information Block

[0043] SIB: System Information Block

[0044] SSB: SS / PBCH block, Synchronization Signal / Physical Broadcast Channel Block

[0045] SRS: Sounding Reference Signal

[0046] DMRS: Demodulation Reference Signal

[0047] CSI-RS: Channel State Information Reference Signal

[0048] RACH: random-access channel

[0049] PBCH: Physical broadcast channel

[0050] PUCCH: Physical Uplink Control Channel

[0051] PUSCH: Physical Uplink Shared Channel

[0052] PRACH: Physical random-access channel

[0053] PDSCH: Physical downlink shared channel

[0054] PDCCH: Physical downlink control channel

[0055] UL-SCH: Uplink Shared Channel

[0056] DL-SCH: Downlink Shared Channel

[0057] C-RNTI: Cell Radio Network Temporary Identifier

[0058] P-RNTI: Paging RNTI, Temporary Identifier for Paging Wireless Network

[0059] RA-RNTI: Random Access RNTI, Temporary Identifier for Random Access Wireless Networks

[0060] CS-RNTI: Configured Scheduling RNTI, a temporary identifier for configuring and scheduling wireless networks.

[0061] SI-RNTI: System Information RNTI, Temporary Identifier for Wireless Networks

[0062] TC-RNTI: Temporary C-RNTI, Temporary Cell Radio Network Identifier

[0063] LP-WUS: Low Power Wake-Up Signal

[0064] RRM: Radio Resource Management

[0065] RRC: Radio Resource Control

[0066] TCI: Transmission Configuration Indicator

[0067] MSB: Most Significant Bit

[0068] LSB: Least Significant Bit

[0069] PO: paging occasion

[0070] PF: paging frame

[0071] RRM: Radio Resource Management

[0072] PCI: Physical Cell Identifier

[0073] The following is a description of the technologies associated with this disclosure. Unless otherwise specified, the same terms in the specific embodiments have the same meaning as in the associated technologies.

[0074] It is worth noting that the User Equipment (UE) involved in this disclosure refers to any end device that accesses a communication network and receives services from it, such as a smartphone, mobile phone, tablet computer, mobile station, access terminal, sensor, wearable device, etc. When describing the methods used by the user equipment or the execution of related processes in this disclosure, terms such as "user" and "terminal" may be used, and this disclosure does not specifically distinguish or limit these terms from the user equipment (UE). Network equipment refers to devices that communicate with the user equipment, including but not limited to wireless base stations, gNBs, eNBs, wireless access points, wireless relays, and user equipment with relay capabilities. This disclosure may use a wireless base station as one form of network equipment implementation, but in specific implementations, other forms of network equipment can be easily used as substitutes.

[0075] In NR networks, even when there is no data transmission, user equipment (UE) maintains a data connection with the network to provide always-on network service. For example, UEs in idle (RRC_IDLE) or inactive (RRC_INACTIVE) states periodically check if the base station has sent them a paging message. When a paging message is detected, a radio transmission can be established according to network instructions.

[0076] To receive paging information from the network, the user equipment (UE) determines the paging cycle (DRX cycle) and the location of the paging occasion (PO) within each paging cycle based on network configuration parameters. It then detects the paging PDCCH at the paging occasion's PDCCH detection opportunity and performs the next action based on the content indicated in the paging PDCCH. According to relevant protocols in NR (e.g., 38.304v17.0.0), an idle or inactive UE can detect POs in each DRX cycle. A UE can determine several POs in the time domain, for example, one PO in each paging cycle. For instance, based on network configuration, the UE can determine several paging parameters: the paging cycle parameter value T for receiving paging messages, which indicates that T radio frames constitute one paging cycle length; the number N of paging frames (PFs) in one paging cycle; and the number Ns of POs in one PF, etc. A paging frame is a radio frame and can contain one or more POs or the start of a PO. This can be simply referred to as one or more POs associated with or contained in a PF. For simplicity, this PF can be referred to as the PF of the PO, and the PO can also be simply called the PO of the PF or the PO associated with the PF. Therefore, the PF used to determine the PO of the UE can also be called the PF of the UE. A paging opportunity PO consists of several paging PDCCH monitoring occasions (PDCCH monitoring occasions for paging, paging PDCCH MOs, or simply MOs). When using multi-beam transmission in the network, different MOs can correspond to different beams, allowing user equipment using different downlink beams to obtain better reception. In each paging cycle, the user equipment determines a PO to monitor the paging PDCCH. Then, the user equipment can select the MOs in the PO to receive the PDCCH according to its own situation. For example, the user equipment selects one or more MOs to monitor the paging PDCCH based on the information measured by the SSB. If the user equipment detects the paging PDCCH, the user equipment performs paging PDSCH reception or other related actions based on the DCI transmitted by the detected PDCCH.

[0077] For example, in a paging cycle of T radio frames, there are N paging frames. The user equipment (UE) determines one paging frame (PF) in the paging cycle as the paging frame for which the UE needs to detect paging information. When a paging frame PF has multiple POs, the UE determines one of them as the UE's PO. The UE can obtain the frame number (SFN) of the PF corresponding to the PO it needs to detect based on parameters such as the UE_ID. The SFN is determined by satisfying the following conditions:

[0078] (SFN+PF_offset)mod T=(T / N)*(UE_ID mod N)

[0079] Where PF_offset is the paging frame offset value configured by the network, T is the paging cycle period determined by the user equipment, N is the number of paging frames in one paging cycle, mod is the modulo operation, and UE_ID is the UE identifier value used to determine the paging parameters, determined according to the relevant protocol in NR (e.g., 38.304v17.0.0).

[0080] The user equipment (UE) determines the frame number of the paging frame (PF) and then determines the point of sale (PO) to be detected. Depending on the network configuration, one PF may be associated with Ns POs. The UE needs to determine which PO to detect in order to inspect the relevant PDCCH and determine if there is a corresponding paging message, etc. This PO can also be called the UE's PO. For example, the UE can determine the PO to be detected based on the PO's sequence number i_s, where i_s can be obtained using the following formula:

[0081] i_s = floor(UE_ID / N) mod Ns

[0082] Where Ns is the number of POs in one PF, which the UE can obtain from ns in the paging channel parameters. floor is the floor operation. mod is the modulo operation.

[0083] A specific example is as follows Figure 1 As shown. Figure 1 In this process, the UE can determine the SFN of the PF based on the preceding formula and parameters such as UE_ID. Here, Ns = 2. The UE can also determine the sequence number of the UE's PO in the PF's POs, i_s = 1. Then, the UE can determine the position of the PO that needs to be detected in the paging PDCCH during the paging cycle, which is the UE's PO in the figure. The figure only shows the schematic diagram of the UE's PO in two paging cycles; the situation in other paging cycles can be obtained similarly.

[0084] After the User Equipment (UE) determines the Point of Purchase (PO), it can determine the information of each Detection Opportunity (MO) based on the paging search space set parameters configured in the network. For example, starting from the PF radio frame, the UE can determine the sequence number of the PO associated with the PF and the S*X consecutive MOs of the PO based on the paging PDCCH search space set configuration and CORESET configuration. Here, S is the number of SSBs actually transmitted in one SSB cycle in the network, i.e., the number of SSB beams, which can be determined, for example, by the ssb-PositionsInBurst parameter in SIB1. The default value of X is 1, but it can also be configured by higher layers. Each S MO of the PO is associated with S different SSB sequence numbers, or in other words, they satisfy the QCL relationship according to the SSB numbering order. At this point, the x*S+Kth paging PDCCH MO is the PO associated with the Kth transmitted SSB, where x is a value of 0, 1, ..., X-1, and K is a value of 1, 2, ..., S. The paging PDCCH MOs do not overlap with uplink symbols and are numbered sequentially starting from 0, beginning with the first paging PDCCH MO of the PF. Optionally, if additional time slots and / or symbol offset parameters are configured, the UE also determines the specific location of the MO from the offset following the PF radio frame.

[0085] User equipment can detect paging PDCCHs using the method described above on relevant time-frequency resources. The DCI in the paging PDCCH contains information such as whether the user needs to receive a corresponding paging message, or whether there is a specific short message. If a paging message is to be received, the DCI also indicates the PDSCH resource parameters used to transmit the paging message, including time-domain resources, frequency-domain resources, modulation scheme, etc. The user equipment can receive the paging PDSCH based on these parameters.

[0086] Typically, user equipment (UE) periodically checks for relevant paging information, even if the paging information does not indicate data transmission related to the UE or the paging message is unrelated to the UE. This behavior consumes significant power from the UE, thus affecting battery life and reducing user experience.

[0087] One feasible method is for the user equipment (UE) to use a low-power auxiliary receiver (LR) to detect the wake-up signal (WUS) sent by the base station. When there is no data transmission, the UE's primary receiver (MR) remains in sleep mode to minimize power consumption. When data needs to be transmitted, the base station notifies the UE via the WUS. When the UE detects the indication carried in the WUS, it wakes up the MR and performs corresponding data processing. Since this WUS is used for low-power receiver detection, it can also be called LP-WUS (low-power LP-WUS). It may also be referred to simply as WUS in the following text. The LP-WUS signal may contain relevant information needed to wake up the UE, such as the UE ID, an indication bit corresponding to the UE or UE packet, a codeword value related to the UE or UE packet, or a specific sequence of the corresponding UE or UE packet detected by the user in the LP-WUS signal. The UE can determine whether it has been woken up by the LP-WUS signal based on the information in the LP-WUS. The user equipment (UE) wakes up the master receiver to perform relevant data transmission only when it detects a wake-up indication message for itself or its user group. This includes detecting the paging PDCCH on the associated paging opportunity (PO) or transmitting the PRACH within the appropriate window. In this way, the UE can maintain its connection to the network with minimal power consumption and reduce network response latency.

[0088] LP-WUS signals can be transmitted using OOK (On-Offkeying) waveforms to reduce receiver complexity. For compatibility with existing NR equipment, OOK can be generated using methods compatible with OFDM symbols, such as multi-carrier OOK. In this case, an integer number of OOK symbols, such as 1 / 2 / 4 / 8 / 16, can be contained within the bandwidth of the LP-WUS signal, making it easy for the base station to transmit signals with different waveforms. Therefore, the length, location, and other parameters of relevant LP-WUS resources, or LO or LMO in the time domain, can also be described using OFDM symbols, time slots, and other parameters.

[0089] The OOK symbols used by the base station to transmit LP-WUS occupy a certain amount of effective bandwidth. Furthermore, to facilitate implementation by the UE receiver, some guard bands are reserved outside the effective bandwidth and are not used for signal transmission; these can be called guard bands. In this invention, unless otherwise specified, the frequency domain bandwidth used for LP-WUS transmission includes the bandwidth actually used for transmitting OOK symbols and the guard bands.

[0090] The base station can also transmit LP-SS (lower power synchronization signal) for UE synchronization and RRM measurements. LP-SS can use similar waveforms and modulation schemes as LP-WUS, allowing for processing using low-power receivers.

[0091] When a base station uses LP-WUS to instruct the UE on related processing, it can use the OOK signal to transmit the relevant LP-WUS, for example, using the ON and OFF states of the OOK signal to represent "1" and "0". Simultaneously, when the base station transmits the relevant OOK signal, it can also use other methods to transmit information on the resources used by the OOK signal. For example, when transmitting the ON symbol of OOK, a specific sequence can be transmitted on the time-frequency resources used, and the UE can determine different indication information based on different sequences. For simplicity, the information determined by the UE on an LP-WUS based on the ON / OFF state of the OOK symbol can be defined as first information, and the information represented by the sequence transmitted on the ON symbol can be defined as second information. The UE can report its capabilities to the base station, for example, that it can detect the first information (referred to as capability 1) based on LP-WUS, or that it can detect both the first and second information simultaneously based on LP-WUS (referred to as capability 2). If this disclosure does not explicitly state whether it is based on the first or second information, the UE can determine the indication in the relevant LP-WUS based on the first and / or second information. Furthermore, the first and second information may transmit partially or entirely the same information.

[0092] When the UE determines whether it needs to detect the PO in the corresponding paging cycle based on the indication in LP-WUS, it needs to determine the location of the associated LO. For example, when determining the LO based on a reference PO or PF and an offset, it needs to determine the location of the reference PO or PF and select the corresponding offset value from several offset parameters configured in the network. The following embodiments are provided to describe the implementation of this disclosure in more detail.

[0093] In NR networks, base stations can configure one or more sets of LP-WUS resource parameters for UEs to detect relevant LP-WUS signals. The UE can detect LP-WUS on the LP-WUS resources determined by these parameters. Since these resources repeat periodically in time, and the base station does not always transmit LP-WUS signals on all resources (for example, if no UE needs to be woken up in a certain cycle, LP-WUS may not be transmitted), these time-frequency resources that may be used to transmit LP-WUS are also called LP-WUS monitoring occasions (LMOs). Considering that a cell may be covered using beam (also called a spatial filter) scanning, different LMOs can use different beams to transmit LP-WUS, so that the UE can select the LMO with the best beam for LP-WUS detection. In this case, a set of several LMOs can be called an LO (LP-WUS occasion). An LO can contain multiple LMOs, such as LMOs that correspond one-to-one with the SSB beam, used to transmit LP-WUS using different beams. In this disclosure, for ease of description, the description may sometimes be from the perspective of base station configuring LO / LMO resources, and sometimes from the perspective of UE detecting LO / LMO. These two descriptions can be considered to be interchangeable.

[0094] A single LO can be a collection of multiple LMOs, consisting of several time-frequency resources (including subframes, OOK symbols, or OFDM symbols, and several RBs) used to transmit LP-WUS. Depending on the base station configuration, under one assumption, when using multi-beams, the UE assumes that the same LP-WUS is transmitted on all beams (on the LO). Under another assumption, the UE can utilize different LMOs on the LO to transmit different LP-WUS to indicate information for different UEs. This disclosure does not limit the use of any particular assumption, and descriptions may be based on one of them in specific embodiments.

[0095] If the base station provides LP-WUS related resource configuration and the UE capability supports LP-WUS detection, the UE can apply relevant procedures to detect LP-WUS on the LO. For example, the UE can detect the LO according to a configured period, detecting at least one LO in each period. This period can be called a LO monitoring cycle. The LO monitoring cycle may have different names, such as LP-WUS minitoring cycle, LP-WUS detection period, or LO detection period, etc. The term LO monitoring cycle will be used consistently in the following text. Since the UE detects the LO to determine whether the PO needs to detect the PDCCH in the corresponding paging cycle, the monitoring cycle can be related to the UE's paging cycle. For example, the monitoring cycle (length) is always equal to the paging cycle (length) used by the UE. In this case, the base station does not need to configure the relevant LO monitoring cycle length parameter for the UE; the UE can use the determined paging cycle length to determine the LO monitoring cycle length.

[0096] When configuring LP-WUS resource parameters, the base station may do so via system broadcast information, which includes configuration information for all LOs in the cell. For a given idle or inactive UE, it is not necessary to detect all LOs. In this case, the UE needs to determine which LO transmits the indication information in LP-WUS that corresponds to the indication information for detecting the paging PDCCH on the PO of the UE in a paging cycle. One approach is for the UE to determine a reference PO and / or reference PF in that paging cycle. The UE can then determine an associated LO based on the offset from the reference PO or reference PF.

[0097] To facilitate the description of the relevant embodiments in this disclosure, several parameters involved in the embodiments are described here. These parameters may be configured by the network through RRC signaling, for example, according to the LP-WUS related parameters in the SIB broadcast message; they may also be indirectly obtained from the parameters configured by RRC signaling. For example, there is a certain conversion relationship between some parameters, and the UE can obtain other related parameters from one or more parameters configured by the higher layer.

[0098] Depending on the method used by the UE to determine its PO in the paging loop, many different UEs may be associated with the same PO. When using LP-WUS to indicate whether the UE is detecting the PDCCH at the relevant PO, to improve the accuracy of the indication, these different UEs associated with the same PO can be further grouped. A UE can belong to a subgroup, and different indications can be used for different subgroups in LP-WUS, thereby reducing the probability of false wake-ups and ensuring power saving for the UE. In this disclosure, M can represent the number of subgroups used on a PO, and M is usually an integer. The UE can directly obtain the subgroup number (isub) of the UE based on higher-layer configuration or based on other relevant parameters, taking a value from 0 to M-1. For example, the higher layer (e.g., the NAS layer) can configure an isub for the UE. Alternatively, when the higher layer does not configure an isub for the UE, the UE can calculate the isub based on some parameters.

[0099] Meanwhile, since the number of packets that one LP-WUS can indicate is limited, the packets on a PO can be further divided into several subgroup sets. Different LP-WUS can be used to indicate packets in a certain subgroup set for different subgroup sets. This allows for the use of more LP-WUS to indicate different packets, further improving the accuracy of UE wake-up indication and enhancing the UE's power-saving effect. In this disclosure, Q can be used to represent the number of subgroup sets on a PO. On the other hand, the base station can use the LP-WUS transmitted on a LO to indicate the indication information of each packet in a subgroup set. In this case, Q also represents the number of LOs associated with a PO. Q is usually an integer. The UE can determine the value of Q according to the parameters configured by the base station. When the base station does not configure this value, it can obtain it according to the relationship of other parameters or use the default value of 1. The UE can directly obtain the sequence number Idx_set of the subgroup set used by the UE according to the higher layer configuration or according to other relevant parameters, taking a value from 0 to Q-1. In addition, when Q represents the number of LOs associated with a PO, Idx_set also represents the sequence number of the LO that the UE wants to detect among the Q LOs.

[0100] A specific example is as follows Figure 2 As shown, a user on a PO can be divided into M user packets, which can be further divided into Q = 3 packet sets. Each packet set contains M0, M1, and M2 packets, corresponding to Idx_sets of 0, 1, and 2, respectively. The base station can use 3 different LP-WUS to indicate the user packets in each packet set. Figure 2 Examples of offset parameters shown in the text include offset0, offset1, and offset2.

[0101] When using LP-WUS to indicate whether the UE in a packet is performing paging PDCCH detection, the base station can use the codepoint value carried by LP-WUS to indicate one or more N on PO. LO Groups. Or it can be represented as N groups. LO This refers to the number of packets associated with a single LP-WUS. These packets may be associated with the same PO or with multiple consecutive POs. For example, the UE can determine the code point value corresponding to the packet it belongs to as i_inSet + iPO * M. Here, i_inSet is the sequence number of the UE's packet within its packet set. iPO is the sequence number of the UE's PO among one or more POs associated with the LO. If an LO in the system is associated with only one PO, then iPO = 0, meaning the UE can determine the code point value corresponding to the packet it belongs to as i_inSet. The UE can obtain the value of i_inSet through several methods. For example, when UE packets are evenly distributed across sets, it can be obtained using i_inSet = mod(isub, N). LO ); or i_inSet = isub-sum(Mi), where sum(Mi) is the sum of the number of packets in the set of all packets on the PO that are less than the sequence number of the packet set where the UE is located; or it can be configured directly by a higher layer (such as NAS).

[0102] The total number of different code point values ​​that an LP-WUS can indicate may be greater than, equal to, or less than N. LO For example, an LP-WUS uses 8 bits of valid information (excluding CRC) to transmit code point values. In this case, the maximum number of different code point values ​​is 256. The LP-WUS can indicate the activation information of up to 256 different packets. In this case, code point values ​​from 0 to 255 can be considered to indicate UEs with packet sequence numbers from 0 to 255. The base station can also configure certain code point values ​​to indicate combinations of several different packets to improve the efficiency of the indication. For example, a code point value can correspond to all combinations of packets on a PO or a packet set. When the UE detects this code point value in any packet set, the UE detects the relevant PO. For example, when an LP-WUS uses 9 bits of valid information, the UE determines N... LO If the value is 256, then the partial code point values ​​used to indicate a single group can be used to indicate a combination of groups to improve the efficiency of the indication.

[0103] Optionally, the UE determines the group or combination of groups corresponding to the code point value based on higher-layer configuration parameters. For example, when the UE configures several group combination lists through higher-layer parameters, the UE assigns the code point values ​​to the groups or combinations of groups in the list in descending order.

[0104] In a specific example, the base station configuration parameters include a parameter called uegrouplist, which indicates groups or combinations of groups. uegrouplist contains four elements:

[0105] • allUEgroups refers to all UE groups in a PO associated with a LO or LP-WUS.

[0106] • UegroupsinPOIndex0 represents all UE groups in the first PO of the first PO associated with a LO or LP-WUS.

[0107] • UegroupsinPOIndex1 represents all UE groups in the first PO within a second PO associated with a LO or LP-WUS.

[0108] • UewithCategoryA represents all UEs classified as A on a PO associated with a LO or LP-WUS.

[0109] In this example, the UE determines that the effective number of bits for LP-WUS is 8. Therefore, the code point values ​​available for LP-WUS indication are 0-255. The UE determines that code point value 255 is used to indicate the first element in uegrouplist, i.e., allUEgroups; code point value 254 is used to indicate UegroupsinPOIndex0; code point value 253 is used to indicate UegroupsinPOIndex1; code point value 252 is used to indicate UewithCategoryA, and so on. Code point values ​​not assigned through higher-layer parameters can be used to indicate individual packets; for example, code point value 0 corresponds to the first UE packet, code point value 1 corresponds to the second UE packet, and so on.

[0110] In another optional example, the UE determines a specific packet combination based on a specific code point value and the corresponding CRC value. For example, when the UE detects that the code point value in the LP-WUS is Ncode, and the value of the CRC field is bit-reversed with the CRC checksum obtained from the code point value, the UE detecting the LO of that LP-WUS detects the paging PDCCH on the PO associated with that LO. That is, all UEs in the UE packets associated with that LO indicated by the code point value at this time perform paging PDCCH detection. Ncode can be a system-predefined value, such as 0, or the maximum code point value, or half of the maximum code point value, etc. For example, the value of the CRC field is bit-reversed with the CRC checksum obtained from the code point value. Assuming the CRC length is 8 bits, and the checksum bit obtained from the CRC calculated from the code point value is 10010011, then the reversed bit is 01101100.

[0111] In another scenario, the base station may use different MOs within a single LO to transmit K LP-WUS indicating different packets. For example, if the LO has 8 MOs, the first 4 MOs use beams 0 / 1 / 2 / 3 to indicate LP-WUS for a first set of UE-related packets, and the last 4 MOs use beams 0 / 1 / 2 / 3 to indicate LP-WUS for a second set of UE-related packets. In this case, K is 2. The UE can first determine the relevant LO, and then, based on the relevant configuration, determine which MOs in the LO transmit LP-WUS indications related to the UE. If the UE does not configure a relevant K value, the UE can assume that the MOs in the LO indicate the same LP-WUS, meaning the K value is 1.

[0112] In some scenarios, the base station may configure multiple consecutive UE packets in a single LO to use LP-WUS to reduce LP-WUS overhead. In this case, the UE can determine the number of consecutive POs associated with a LO as P. For example, P can be configured with a value from the set {1, 2, 4, 8}, which easily adapts to various scenarios in the network where the paging parameter Ns is configured as 1, 2, or 4. The UE can determine the value of P based on the parameters configured by the base station. When the base station does not configure this value, it can obtain it based on the relationship of other parameters or use the default value of 1. When the P determined by the UE is greater than 1, the UE can determine the sequence number iPO of the UE's PO in these POs, for example, determining the sequence number iPO = ((UE_ID mod N)·Ns+i_s)mod P. If P is less than or equal to 1, iPO = 0.

[0113] These parameters may have certain constraints or conversion relationships, so in addition to obtaining the relevant parameter values ​​directly through the base station configuration, the UE may also obtain them through parameter conversion from other configurations. For example, when an LP-WUS can indicate the number of packets N... LO When the number of packets in a single PO is greater than the number of packets in all LOs, and the number of packets indicated by each LO is the same, the UE can use P=N. LO The value of P is obtained by / M; or by the more general formula P = ceil(N) LO / M) obtains the value of P, where ceil is the floor function. For example, when uniformly distributing user groups to a group set, the UE can obtain other parameters based on the operations between parameters. For instance, the UE can obtain the group set index Idx_set = floor(isub / N) LO (), where isub is the UE's packet sequence number. For example, if the UE determines P to be greater than 1, the UE determines Q to be 1; otherwise, the UE can use Q = M / N. LO Determine the value of Q. `floor` is the floor function.

[0114] When configuring LO-related resources and parameters, the system may have different configuration methods. Correspondingly, when the UE determines the relationship between the PO and the LO based on these configured parameters, there may be several ways. For example, according to one configuration, UEs detecting / associating with the same PO always detect the same PO. In another case, UEs associated with different POs can also detect the same LO, in which case the LP-WUS in one LO indicates UE groups on multiple POs. Yet another case is that UE groups detecting / associating with the same PO are divided into several sets, and UEs in each set detect the same LO. These different configuration scenarios may correspond to different combinations of P / Q parameters.

[0115] In this disclosure, when describing methods for selecting a resource / parameter / collection object from several resources / parameters / collections, a sequence number is used to identify a specific resource / parameter / collection object. Unless otherwise specified, the sequence numbers in this disclosure start from 0. That is, sequence number 0 corresponds to the first resource / parameter / collection object in the sequence, sequence number 1 corresponds to the second resource / parameter / collection object in the sequence, and so on. For the sake of simplicity, unless there are special circumstances, these will not be explained in detail later.

[0116] In an optional embodiment, the UE determines a reference PO (refPO) and / or a reference PF (refPF) for determining the location of the LO based on the parameters of the LP-WUS configured by the base station through system broadcast and paging parameters. The UE can further determine the location of the LO based on the reference PO and / or the reference PF. When determining the location of the LO based on the reference PO or the reference PF, the UE can determine an offset value from a plurality of offset values ​​configured by the network to determine the LO offset relative to the reference PO or the reference PF. The UE can determine the location of the LO before the reference PO based on the offset value, and the UE can detect / receive LP-WUS on the LO.

[0117] Figure 3 This is a schematic diagram illustrating the basic process of a method performed by a user equipment (UE) in an embodiment of this disclosure. Figure 3 As shown, in one embodiment of this disclosure, the method performed by the user equipment (UE) includes steps S101 to S103.

[0118] In step S101, the reference PO and / or reference PF in the paging cycle used to determine the location of the LO are determined based on the number of POs P and / or the number of LOs Q associated with a LO as determined by the UE according to the parameters in the system configuration message.

[0119] In step S102, an offset value is determined for determining the offset of LO relative to reference PO and / or reference PF.

[0120] In step S103, the location of the LO is determined based on the offset value and the reference PO and / or reference PF. Determining the reference PF includes determining the system frame number (SFN) used by the reference PF; determining the reference PO includes determining the sequence number of the reference PO within the PF; and determining the offset value used to determine the offset of the LO relative to the reference PO and / or reference PF includes determining the sequence number of the offset value used among multiple offset values ​​configured in the network.

[0121] According to the above method, the UE can find the corresponding LO position to receive the LP-WUS when searching for the LP-WUS in the time domain to transmit information indicating whether the UE is performing paging PDCCH detection, thereby ensuring reliability while reducing the UE's power consumption.

[0122] Optionally, the UE determines the reference PF according to at least one of the following methods.

[0123] • The reference PF is the UE's PF determined by the UE based on the paging parameters, and the reference PF's SFN is the SFN of the UE's PF.

[0124] • If P is not greater than Ns, the reference PF is the UE's PF determined by the UE based on the paging parameters, and the SFN of the reference PF is the SFN of the UE's PF; otherwise, the UE determines the SFN of the reference PF as the SFN of the UE's PF - floor(iPO / Ns)*T / N

[0125] Ns, T, and N are the paging parameters described above in this disclosure. The PF and its SFN of the UE are the PF and its SFN associated with the PO detected by the UE in the paging cycle, as described above. iPO is the sequence number of the UE's PO among the P POs associated with the LO.

[0126] Optionally, the UE determines the reference PO according to at least one of the following methods.

[0127] • The reference PO is the PO of the UE determined by the paging parameters, that is, the PO with sequence number i_s.

[0128] • The reference PO is the PO on the reference PF with the index floor(i_s / P)*P.

[0129] • If P is greater than 1, the reference PO is the PO with index floor(i_s / P)*P in the reference PF; otherwise, the reference PO is the PO with index i_s in the reference PF.

[0130] Optionally, the UE determines the index i_offset used to determine the offset value of LO according to at least one of the following methods.

[0131] ·i_offset=Idx_set

[0132] ·i_offset=Idx_set+i_s*Q

[0133] ·i_offset=Idx_set*Q+i_s

[0134] • i_offset = floor(i_s / P)

[0135] ·i_offset=Idx_set+floor(i_s / P)*Q

[0136] ·i_offset=Idx_set*Q+floor(i_s / P)

[0137] If P ≥ Ns, i_offset = 0; otherwise, if P > 1, i_offset = floor(i_s / P); otherwise i_offset = Idx_set + i_s * Q

[0138] ·i_offset=floor(i_s*Q / P)*P / Q

[0139] If P ≥ Ns, i_offset = 0; otherwise, i_offset = floor(i_s / P)

[0140] The following describes, with more specific examples, the methods and procedures for the UE to determine the reference PO and reference PF and their serial numbers, as well as the methods and procedures for determining the offset value and its serial number.

[0141] In one optional example, the UE determines the PO (Personal Request) determined based on paging parameters as the reference PO used to determine the associated LO (Location Request). That is, the reference PO determined by the UE in the paging loop is the PO used by the UE to detect the paging PDCCH in that paging loop; specifically, the reference PO is the PO with sequence number i_s on the PF (Power Factor). In this case, the reference PF is the UE's PF used by the UE to detect the paging PDCCH in that paging loop. In this example, the UE typically determines P to be 1, and the determined Q value is an integer greater than or equal to 1. This means that UEs in the same packet set detect the same LO, while UEs in different packet sets detect different LOs. A specific example is as follows... Figure 4 As shown.

[0142] Figure 4In the example, the UE determines that there are Ns = 4 POs in a PF based on the paging parameters configured by the base station. When a UE determines that a PO in a paging cycle is its PO, the UE uses it as a reference PO to determine the location of the LO. For example... Figure 4 In (a), a UE determines the second PO in the PF as the UE's PO, and the UE can use this PO as a reference PO (RefPO in the figure) to determine the location of the LO.

[0143] In another optional example, depending on the network configuration or system default settings, when the base station sets the LO location, it applies the same (one or more) offset values ​​to the PO in the PF. In this case, the UE determines that the offset value applied to the UE has the sequence number i_offset as Idx_set among these one or more offset values. Idx_set is the sequence number of the packet set in the user packet set on the UE's PO. A specific example is as follows: Figure 4 As shown in (a), in this figure, Q=2, meaning each PO is associated with two LOs. In this case, the base station can configure two offset parameters, offset0 and offset1, corresponding to offset indices i_offset of 0 and 1, respectively. UEs using different reference POs can use one of these two offset parameters to determine the location of the LO they want to detect. For example, a UE with packet set indices Idx_set of 0 determines i_offset of 0 and can use offset0 to determine the location of the associated LO; a UE with packet set indices Idx_set of 1 determines i_offset of 1 and can use offset1 to determine the location of the associated LO. This figure only shows the offset relationship between the first two POs and LOs in the PF; the offset relationship between the latter two POs and LOs can be obtained similarly.

[0144] Alternatively, depending on the network configuration or system default method, an independent offset(s) is applied to the PO in the PF. In this case, the UE can determine that the index i_offset of the applied offset value is either Idx_set + i_s * Q or Idx_set * Q + i_s. Idx_set is the index of the UE's packet set within the user packet set on the PO. A specific example is as follows... Figure 4As shown in (b), in this figure, Q = 2, meaning each PO has two LOs associated with it. The base station can then configure two offset parameters for each reference PO, which are eight values: offset0 / offset1 / offset2 / ... / offset7. UEs using different reference POs can use one of these offset parameters to determine the location of the LO they want to detect. The UE can select an offset value based on its index to determine the LO's location. For example, for a UE using the second PO of the PF as its reference PO, if its UE group set index is 0, then the UE determines i_offset = Idx_set + i_s * Q = 0 + 1 * 2 = 2, meaning it selects offset2 to determine the location of the LO it wants to detect. This figure only shows the offset relationship between the first two POs and LOs in the PF; the offset relationship between the last two POs and LOs can be obtained similarly.

[0145] In one optional example, when the UE-determined P is less than or equal to the number of POs (iPOs) of a PF (Page Entities) determined by the UE as a paging parameter, the UE determines the reference PF as the UE's PF in the paging cycle. Otherwise, the UE determines the reference PF based on the SFN (First Message Function) of the UE's PF and the obtained PF, for example, by determining the frame number of the reference PF based on the SFN of the UE's PF - floor(iPO / Ns)*T / N. In this example, the UE-determined P is typically an integer greater than or equal to 1, and the UE-determined P value may be greater than Ns, meaning that multiple PFs may have POs associated with the same LO (Location Entity). The UE-determined Q value is 1, meaning that UEs detecting the same PO always detect the same LO. Alternatively, if the UE-determined P is always less than or equal to the UE-determined Ns (e.g., the base station does not configure P, in which case the UE can assume a default value of 1), the UE always determines the reference PF as the UE's PF in the paging cycle. In this case, the UE-determined P is typically an integer greater than or equal to 1, and the UE-determined P value is not greater than Ns. The UE-determined Q value is 1, meaning that UEs detecting the same PO always detect the same LO.

[0146] In one optional example, the UE determines a reference PO from among the Ns POs of the reference PF to determine the location of the LO. For example, the UE determines the PO with the sequence number floor(i_s / P)*P on the reference PF as the reference PO. Here, i_s is the sequence number of the UE's PO in the PF when the UE determines the paging parameters.

[0147] A specific example of this example is as follows: Figure 5As shown in (a), a PF in this figure contains Ns = 4 POs. In the example where P = 1, the UE determines the reference PF as its own PF, and the UE determines the reference PO as its own PO (i.e., the PO with index i_s). In the example where P = 2, the UE determines the reference PF as its own PF, and the UE determines the reference PO as the floor(i_s / P)*P PO in the reference PF. For example, for a UE using i_s = 1, the reference PO it uses is its preceding adjacent PO, which is the PO with index 0. In the example where P = 8, the UE that is associated with a PO in the preceding PF determines the reference PF as that preceding PF, and the reference PO is the first PO of the PF with index floor(i_s / P)*P = 0. The UE that is associated with a PO in the following PF determines the reference PF as the first PO of the preceding PF with index floor(i_s / P)*P = 0.

[0148] Alternatively, depending on the network configuration or system default settings, when the base station sets the LO, it applies the same offset(s) to the PO in the PF. In this case, the UE determines that the offset applied by the UE has an index i_offset of 0 among these offset(s). A specific example is as follows: Figure 5 As shown in (a), in this figure, the base station can be configured with an offset parameter offset0. UEs using different reference POs can use this offset parameter to determine the location of the LO that the UE wants to detect. This figure only shows the schematic diagram of the offset relationship between the first two POs and LOs in the PF. The offset relationship between the last two POs and LOs in the PF can be obtained similarly.

[0149] Alternatively, depending on the network configuration or the system default method, an independent offset(one or more) value is applied to the PO in the PF. In this case, the UE determines the index i_offset of the offset value applied by the UE as floor(i_s / P)*P. A specific example is as follows: Figure 5 As shown in (b), in this figure, P=2, meaning each LO is associated with two POs, and every two adjacent POs use the same offset parameter; P=1, meaning each LO is associated with one PO, and the UE determines the index of the offset value used to determine the LO position as floor(i_s / P)*P=i_s. This figure only shows the schematic diagram of the offset relationship between the first two POs and LOs in the PF; the offset relationship between the last two POs and LOs can be obtained similarly.

[0150] In another alternative example, the UE determines the reference PF as the UE's PF in the paging loop. When the UE determines P to be greater than 1, the UE determines the reference PO to be the PO with sequence number floor(i_s / P)*P on the reference PF; otherwise, the reference PO is the UE's PO (i.e., the PO with sequence number i_s). An equivalent description of this method of determining PO is that the UE determines the reference PF as the UE's PF, and the UE determines the reference PO to be the PO with sequence number floor(i_s*Q / P)*P / Q on the reference PF. In this example, the UE determines P as an integer greater than or equal to 1, and the value of P determined by the UE is not greater than Ns. The value of Q determined by the UE can be an integer greater than or equal to 1, meaning that UEs in the same packet set detect the same LO, and UEs in different packet sets detect different LOs. Also, P and Q are usually not both greater than 1.

[0151] A specific example of this example is as follows: Figure 6 As shown in (a), a PF in this figure contains Ns = 4 POs. In the example where P = 1 and Q = 2, the UE determines that the reference PF is the UE's PF, and the UE determines that the reference PO is the UE's PO (that is, the PO with the sequence number i_s). In the example where P = 2 and Q = 1, the UE determines that the reference PF is the UE's PF, and the UE determines that the reference PO is the floor-th (i_s*Q / P)*P / Q PO in the reference PF. For example, for a UE whose i_s is 1 determined according to paging parameters and UE_ID, the reference PO it uses is its previous adjacent PO, that is, the PO with the sequence number 0. In the example where P=8 and Q=1, the reference PF determined by the UE associated with the PO in the previous PF is that previous PF, and the reference PO is the first PO of the PF with the sequence number floor(i_s*Q / P)*P / Q=0. The reference PF determined by the UE associated with the PO in the next PF is the reference PO of the previous PF with the sequence number floor(i_s*Q / P)*P / Q=0, which is also the first PO of the PF.

[0152] In another optional example, depending on the network configuration or system default settings, when the base station sets the LO location, it applies the same (one or more) offset values ​​to the PO in the PF. In this case, the UE determines that the offset value applied to the UE has the sequence number i_offset as Idx_set among these one or more offset values. Idx_set is the sequence number of the packet set in the user packet set on the UE's PO. A specific example is as follows: Figure 6As shown in (a) of the figure, in the example where P=1 and Q=2, each PO is associated with two LOs. In this case, the base station can configure two offset parameters, offset0 and offset1, corresponding to offset indices i_offset of 0 and 1, respectively. UEs using different reference POs can use one of these two offset parameters to determine the location of the LO they want to detect. For example, a UE with packet set number 0 uses offset0 to determine the location of the associated LO, and a UE with packet set number 1 uses offset1 to determine the location of the associated LO. This figure only shows the offset relationship between the first two POs and LOs in the PF; the offset relationship between the last two POs and LOs can be obtained similarly.

[0153] Alternatively, depending on the network configuration or system default method, an independent offset(one or more) value is applied to the PO in the PF. In this case, the UE determines the sequence number i_offset of the applied offset value as Idx_set + floor(i_s / P) * Q or i_offset = Idx_set * Q + floor(i_s / P). Idx_set is the sequence number of the UE's UE packet set within the user packet set on the PO. A specific example is as follows... Figure 6 As shown in (b), in this figure, P=1, Q=2, meaning each PO has two LOs associated with it. The base station can then be configured to assign two offset parameters to each reference PO, which are eight values: offset0 / offset1 / offset2 / ... / offset7. UEs using different reference POs can use one of these offset parameters to determine the location of the LO they want to detect. The UJE can select an offset value based on its index to determine the LO's location. For example, if a UE using the second PO of the PF as its reference PO has a UE group set index of 0, then the UE will select offset2 to determine the location of the LO it wants to detect. This figure only illustrates the offset relationship between the first two POs and LOs in the PF; the offset relationship between the last two POs and LOs can be obtained similarly.

[0154] In another alternative example, the UE determines a reference PF (Power Factor), which it uses to determine the location of the LO (Location Outlet). When the UE-determined P is less than the UE-determined Ns, the reference PF is the UE's PF and the associated SFN (Self-Signal Number) determined accordingly. Otherwise, the reference PF is the UE's PF minus floor(iPO / Ns)*T / N radio frames, meaning the SFN of the reference PF is the UE's PF's SFN - floor(iPO / Ns)*T / N. In this example, the UE-determined P is typically an integer greater than or equal to 1, and the UE-determined P value may be greater than Ns, meaning multiple PFs may have POs associated with the same LO. The UE-determined Q value is 1, meaning a UE detecting the same PO always detects the same LO.

[0155] A specific example is as follows Figure 7 As shown in (a). In the example where P=2, the UE determines the reference PF as the UE's PF. In the example where P=8, the UE determines the reference PF associated with the PO in the previous PF as the previous PF, and the UE determines the reference PF associated with the PO in the next PF as the previous PF. That is, the SFN of the reference PF is the SFN of the UE's PF - floor(iPO / Ns)*T / N.

[0156] In another optional example, depending on the network configuration or the system default method, one or more offset values ​​are applied to the LO position determined based on the reference PF. In this case, the UE can determine the sequence number i_offset used to determine the LO position. Optionally, the UE determines the sequence number as Idx_set + floor(i_s / P) * Q if one of the following exists; otherwise, the UE determines the sequence number as 0:

[0157] The reference PF determined by the UE is the UE's PF.

[0158] • The P determined by the UE is less than or equal to Ns

[0159] Optionally, the UE can also determine the offset sequence number using the following method:

[0160] If P ≥ Ns, i_offset = 0; otherwise, if P > 1, i_offset = floor(i_s / P); otherwise i_offset = Idx_set + i_s * Q; or in pseudocode form: If P ≥ Ns, i_offset = 0, else If P > 1, i_offset = floor(i_s / P), else i_offset = Idx_set + i_s * Q.

[0161] If Q = 1, the above method can be further simplified to:

[0162] ·If P≥Ns, i_offset=0, else, i_offset=floor(i_s / P)

[0163] A specific example is as follows Figure 7 As shown in (b). In the example where P=2, the UE determines the offset value of the LO position determined by the reference PF as Idx_set+floor(i_s / P)*Q. For example, for a UE whose i_s is 1 determined by paging parameters and UE_ID, the offset value used is the Idx_set corresponding to its UE. In the example where P=8, the reference PF determined by the UE is the previous PF, and the offset value is Idx_set+floor(i_s / P)*Q=0.

[0164] Once the UE has determined the reference PO / PF and the offset number or offset value used to determine the LO, it can determine the location of the LO associated with the PO based on the offset value. In NR, a PO is a set of S*X consecutive PDCCHMOs, where S is the number of SSBs actually transmitted, which can be determined according to the ssb-PositionsInBurst parameter in SIB1. X is the value of the nrofPDCCH-MonitoringOccasionPerSSB-InPO parameter configured by the higher layer; if this parameter is not configured, X is 1. In this case, the x*S+Kth paging PDCCHMO is the PO associated with the Kth transmitted SSB, where x is a value of 0, 1, ..., X-1, and K is a value of 1, 2, ..., S. Paging PDCCHMOs do not overlap with uplink symbols and are numbered sequentially starting from 0, beginning with the first paging PDCCHMO of the PF. Similarly, a LO is also a set of several LMOs. A specific example is as follows... Figure 8 As shown. Figure 8 In this context, a Loop contains two LMOs, and a Reference Point (PO) also contains two Paging MOs. Figure 8 In (a), the UE can determine an offset value from the base station's configuration parameters based on the sequence number of the determined offset value, and then determine the reference position and the starting position of the LO based on the reference PO or reference PF. Figure 8 (b) is another example where the UE can determine an offset value O from the base station's configuration parameters based on the sequence number of the determined offset value, as well as a common offset value 1 of multiple LOs associated with a reference PO or reference PF, and then determine a reference position based on the reference PO or reference PF as the starting position of the UE's LO.

[0165] In another aspect of this embodiment, when the UE determines the LO based on the reference PO and the offset, it also determines a reference position for the offset of the reference PO, such as a symbol or a time slot.

[0166] When the firstPDCCH-MonitoringOccasionOfPO parameter exists (that is, when the UE can obtain this parameter through higher-layer signaling such as SIB), the starting PDCCH MO of the i_s+1th PO is determined by the i_s+1th value in the firstPDCCH-MonitoringOccasionOfPO parameter; otherwise, the starting PDCCH MO (the sequence number) of the i_s+1th PO is equal to i_s*S*X.

[0167] Optionally, the reference position for reference PO number i_ref can be determined using one of the following methods:

[0168] The first symbol of i_ref*S*X PDCCH MO

[0169] The symbol preceding the first symbol of the i_ref*S*X PDCCH MO

[0170] The start time or starting symbol of the time slot containing the first symbol of the i_ref*S*X PDCCH MOs.

[0171] The end time of the time slot preceding the time slot containing the first symbol of the i_ref*S*X PDCCH MO, or the end time of the last symbol.

[0172] • When the parameter firstPDCCH-MonitoringOccasionOfPO exists, the sign position corresponding to the i_ref+1th value in firstPDCCH-MonitoringOccasionOfPO.

[0173] • When the parameter firstPDCCH-MonitoringOccasionOfPO exists, the position of the previous symbol corresponding to the i_ref+1th value in firstPDCCH-MonitoringOccasionOfPO.

[0174] • Refer to the first PDCCH of PO and the first symbol of MO

[0175] • Refer to the first symbol of the first PDCCH of the PO and the symbol preceding the first symbol of the MO.

[0176] • Refer to the start time or start symbol of the first symbol in the first PDCCHMO of the reference PO.

[0177] • Refer to the end time of the time slot preceding the first symbol of the first PDCCHMO in the reference PO, or the end time of the last symbol.

[0178] Where i_ref is the index of the reference PO determined by the UE on the reference PF.

[0179] Optionally, the UE determines the starting position of a LO based on the offset. A LO may contain several LMOs, according to one of the following methods:

[0180] The first LMO that does not overlap with the uplink time slot or symbol, starting from the time slot where the starting position is located, is the first LMO of that LO.

[0181] The first LMO that does not overlap with an uplink slot or symbol, starting from the symbol where the starting position is located, is the first LMO of that LO.

[0182] After the UE determines the first LMO of the LO, it can sequentially determine several LMOs of the LO that do not overlap with the uplink slots or symbols.

[0183] When receiving LP-WUS, different UEs may have different capabilities, such as requiring different synchronization times. The UE can use information in its capability report to inform the base station of its LP-WUS reception capabilities. For example, this includes the minimum time required from the time an LP-WUS is received to the time it can receive the paging PDCCH according to the indications in the LP-WUS, which is the minimum delay time. At this point, the UE also determines the association between the LO and PO based on the minimum delay time reported in the UE report. Specifically, it uses the indication information in the LP-WUS detected on the LO to instruct the UE on which associated PO to detect the PDCCH.

[0184] According to the method in this disclosure, the UE can determine the reference PO and reference PF in the paging loop, as well as the offset number, thereby determining the location of the LO.

[0185] Optionally, the UE also determines the association between the LO and PO based on the minimum latency reported by the UE and the offset between the LO and the reference PO / PF determined by the UE:

[0186] - When the offset is less than or equal to the minimum delay value reported by the UE, the UE determines the association between the LO and the UE's PO in the same paging cycle as the reference PO / PF.

[0187] When the offset is greater than the minimum delay value reported by the UE, the UE determines the association between the LO and the UE's PO in L paging cycles after the paging cycle containing the reference PO / PF. L satisfies L*T LO + The smallest natural number whose offset is greater than the minimum delay value reported by the UE. Typically, L = 1.

[0188] Optionally, the UE may also determine the association between the LO and PO based on the minimum delay reported by the UE and the distance between the LO determined by the UE and the PO of the UE on the paging cycle where the reference PO / PF is located:

[0189] - When the distance is less than or equal to the minimum delay value reported by the UE, the UE determines the association between the LO and the PO of the UE in the same paging cycle as the reference PO / PF.

[0190] When the distance is greater than the minimum delay value reported by the UE, the UE determines the association between the LO and the UE's PO in L paging cycles after the paging cycle containing the reference PO / PF. L satisfies L*T LO + The smallest natural number whose offset is greater than the minimum delay value reported by the UE. Typically, L = 1.

[0191] Below, using Figure 9 This describes a user device that can perform the methods described in detail above as an embodiment of the present disclosure.

[0192] Figure 9 This is a block diagram representing the user equipment (UE) involved in this disclosure.

[0193] like Figure 9 As shown, the user equipment UE900 includes a processor 901 and a memory 902. The processor 901 may include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 902 may include, for example, volatile memory (such as random access memory, RAM), a hard disk drive (HDD), non-volatile memory (such as flash memory), or other memory. Program instructions are stored on the memory 902. When executed by the processor 901, these instructions can perform the methods described in detail herein, executed by the user equipment.

[0194] The methods and related devices of this disclosure have been described above in conjunction with preferred embodiments. Those skilled in the art will understand that the methods shown above are merely exemplary, and the various embodiments described above can be combined with each other without contradiction. The methods of this disclosure are not limited to the steps and sequence shown above. The network nodes and user equipment shown above may include more modules, such as modules that can be developed or will be developed in the future for use with base stations, MMEs, or UEs, etc. The various identifiers shown above are merely exemplary and not limiting, and this disclosure is not limited to the specific information elements that are examples of these identifiers. Those skilled in the art can make many variations and modifications based on the teachings of the illustrated embodiments. For example, in this disclosure, "1" and "0" are used to represent related indication information, and they can be interchanged without contradiction; that is, "0" is used to indicate information indicated by "1" in this disclosure, and "1" is used to indicate information indicated by "0" in this disclosure. As another example, in the examples of this disclosure, some sequence numbers are arranged from smallest to largest to correspond to bits from MSB to LSB; without contradiction, they may also be arranged from largest to smallest to correspond to bits from MSB to LSB. These changes do not affect the UE's ability to determine the relevant procedures according to the relevant instructions.

[0195] It should be understood that the above embodiments of this disclosure can be implemented by software, hardware, or a combination of both. For example, the various components inside the base station and user equipment in the above embodiments can be implemented by a variety of devices, including but not limited to: analog circuit devices, digital circuit devices, digital signal processing (DSP) circuits, programmable processors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), programmable logic devices (CPLDs), and so on.

[0196] In this disclosure, "base station" can refer to a mobile communication data and control switching center with high transmission power and wide coverage, including functions such as resource allocation and scheduling, and data reception and transmission. "User equipment" can refer to user mobile user equipment, such as mobile phones, laptops, and other user equipment that can wirelessly communicate with base stations or micro base stations.

[0197] Furthermore, the embodiments of this disclosure disclosed herein can be implemented on a computer program product. More specifically, the computer program product is one that has a computer-readable medium on which computer program logic is encoded, which, when executed on a computing device, provides related operations to implement the above-described technical solutions of this disclosure. When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in the embodiments of this disclosure. This configuration of the disclosure is typically provided as software, code, and / or other data structures set or encoded on a computer-readable medium such as an optical medium (e.g., CD-ROM), floppy disk, or hard disk, or other media such as firmware or microcode on one or more ROM, RAM, or PROM chips, or downloadable software images, shared databases, etc., in one or more modules. The software or firmware or such configuration can be installed on a computing device to cause one or more processors in the computing device to perform the technical solutions described in the embodiments of this disclosure.

[0198] Furthermore, each functional module or feature of the base station equipment and user equipment used in each of the above embodiments can be implemented or executed by circuitry, which is typically one or more integrated circuits. Circuitry designed to perform the various functions described in this specification may include general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs) or general-purpose integrated circuits, field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic, or discrete hardware components, or any combination of the above devices. The general-purpose processor may be a microprocessor, or the processor may be an existing processor, controller, microcontroller, or state machine. The aforementioned general-purpose processor or each circuit may be configured by digital circuitry or by logic circuitry. Furthermore, when advancements in semiconductor technology lead to advanced technologies that can replace current integrated circuits, this disclosure may also utilize integrated circuits obtained using such advanced technologies.

[0199] Although the present disclosure has been illustrated above in conjunction with preferred embodiments, those skilled in the art will understand that various modifications, substitutions, and changes can be made to the disclosure without departing from its spirit and scope. Therefore, the disclosure should not be limited by the above embodiments, but rather by the appended claims and their equivalents.

Claims

1. A method executed by a user equipment (UE), comprising: Based on the number of paging opportunities P associated with a LO and / or the number of LOs associated with a LO determined by the UE according to the parameters in the system configuration message, a reference PO and / or reference paging frame PF is determined in the paging cycle period used to determine the location of the LO, which is a set of low-power wake-up signal LP-WUS detection opportunities LMOs. Determine the offset value used to determine the offset of LO relative to the reference PO and / or reference PF; and The position of LO is determined based on the offset value and the reference PO and / or reference PF. Determining the reference PF includes determining the system frame number (SFN) used by the reference PF; determining the reference PO includes determining the sequence number of the reference PO in the PF; and determining the offset value used to determine the offset of the LO relative to the reference PO and / or the reference PF includes determining the sequence number of the offset value used among a plurality of offset values ​​configured in the network.

2. The method according to claim 1, wherein, The reference PF is determined according to at least one of the following methods: The reference PF is determined by the UE based on the paging parameters, and the SFN of the reference PF is the SFN of the UE's PF. If P is not greater than Ns, the reference PF is determined to be the UE's PF determined by the UE based on the paging parameters, and the SFN of the reference PF is the SFN of the UE's PF. Otherwise, the system frame number SFN of the reference PF is determined to be the SFN of the UE's PF - floor(iPO / Ns)*T / N. in, Ns: The number of POs in a PF; iPO: When the P determined by the UE is greater than 1, the PO of the UE is the sequence number of these P POs; otherwise, it is 0. T: The length of a paging cycle; N: The number of PFs in a paging cycle.

3. The method according to claim 1, wherein, The reference PO is determined according to at least one of the following methods: The reference PO is determined as the PO of the UE based on the paging parameters, and the index of the reference PO in the PF is is; Determine the reference PO as the PO on the reference PF with the ordinal number floor(i_s / P)*P; If P is greater than 1, the reference PO is determined to be the PO with index floor(i_s / P)*P in the reference PF; otherwise, the reference PO is determined to be the PO with index is in the reference PF.

4. The method according to claim 2 or 3, wherein, The index i offset for determining the offset value is determined according to at least one of the following methods: ioffset = Idx set; i_offset = Idx_set + i_s * Q; i offset = Idx set * Q + is; ioffset = floor(i_s / P); ioffset=Idx_set+floor(i_s / P)*Q; i_offset=Idx_set*Q+floor(i_s / P); If P≥Ns, i_offset=0; Otherwise, if P>1 is still satisfied, i_offset = floor(i_s / P); otherwise i_offset = Idx_set + i_s*Q; i_offset=floor(i_s*Q / P)*P / Q; If P≥Ns, i_offset=0; Otherwise, i_offset = floor(i_s / P), in, Idx set: The sequence number of the UE's group set in the user group set on the UE's PO.

5. The method according to claim 1, wherein, When determining the position of LO based on the reference PO and the offset value, a reference position for offsetting the reference PO is also determined.

6. The method according to claim 5, wherein, The reference position of the reference PO on the reference PF is determined by at least one of the following methods: i ref*S*X first symbols of PDCCH MO; i ref*S*X symbols preceding the first symbol of the PDCCH MO; i ref*S*X PDCCH MOs are the start time or start symbol of the time slot containing the first symbol of the MO; i ref*S*X PDCCH MOs are the end time of the time slot preceding the time slot containing the first symbol of the MO, or the last symbol. Given that the symbol position corresponding to the i_ref+1th value in the parameter firstPDCCH-MonitoringOccasionOfPO can be obtained; If it is possible to obtain the parameter firstPDCCH-MonitoringOccasionOfPO, the position of the previous symbol corresponding to the i_ref+1th value in the parameter firstPDCCH-MonitoringOccasionOfPO; Refer to the first PDCCH of PO and the first symbol of MO; Refer to the symbol preceding the first symbol of the first PDCCH of the PO; Refer to the start time or start symbol of the time slot containing the first symbol of the first PDCCH of the reference PO; Refer to the end time or last symbol of the time slot preceding the first symbol of the first PDCCH of the PO. in, S: The number of actual transmitted synchronization signals / physical broadcast channel blocks (SSBs); X: The value of the parameter nrofPDCCH-MonitoringOccasionPerSSB-InPO configured at higher levels. It is 1 when this parameter is not configured.

7. The method according to claim 1, wherein, When a LO contains more than one LMO, the first LMO of the LO is determined according to one of the following methods: The first LMO that does not overlap with the uplink slot or symbol, starting from the slot where the starting position is located, is the first LMO of this LO; The first LMO that does not overlap with the uplink slot or symbol, starting from the symbol where the starting position is located, is the first LMO of that LO.

8. The method according to claim 1, wherein, The association between LO and PO is determined based on the minimum delay value reported by the UE and the offset between LO and reference PO and / or reference PF determined by the UE.

9. A user equipment, comprising: processor; as well as Memory, which stores instructions The instructions, when executed by the processor, perform the method described in any one of claims 1 to 8.

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