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: determining a size of a bitmap for a UE in a low power wakeup signal (LP-WUS); determining a serial number corresponding to each service cell in the bit map; and aiming at each service cell, detecting an indication aiming at the service cell from the received LP-WUS according to the serial number so as to determine whether to carry out PDCCH detection in the service cell or not.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of wireless communication, and in particular to a method for determining downlink resources performed by a user equipment and a corresponding user equipment. BACKGROUND

[0002] This section introduces aspects that can be helpful in better understanding the various aspects of the present disclosure. Accordingly, the statements in this section are to be read in light of this objective and not as admissions of prior art or what can or can not be patentable.

[0003] In 5G system, in addition to latency, reliability, availability, etc., energy efficiency of user equipment is also one of the key elements of 5G. Generally, user equipment consumes tens of milliwatts in RRC idle or inactive state, and hundreds of milliwatts in RRC connected state. According to different application scenarios, user equipment may need to be charged every week or every day. Therefore, it is necessary to further reduce the power consumption of user equipment and prolong the battery life to improve energy efficiency and obtain better user experience. For devices using micro batteries or inconvenient to charge, such as sensors, automatic controllers, wearable devices, etc., the standby time may be 1-2 weeks or longer, and it is more critical to improve the energy use efficiency.

[0004] User equipment can generally save power using discontinuous reception (DRX). To ensure connectivity, user equipment needs to wake up every DRX cycle to detect control channels. Even when there is no data transmission for user equipment, user equipment periodically consumes power. If user equipment can only wake up when there is a business transmission requirement, the power consumption of user equipment will be greatly reduced. Therefore, user equipment can configure a low-power auxiliary receiver to detect the wake-up signal (LP-WUS) sent by the base station. The main receiver of the user equipment 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 main receiver for corresponding data processing. In this way, the business processing requirements of user equipment can be met using less power consumption. To achieve such a design goal, there are several problems to be solved in the system, for example, when UE supports multiple service cells, how to determine the size of the related indication information and correspond to each service cell, and perform corresponding processing according to the related indication in each service cell. SUMMARY

[0005] To solve at least part of the above problems, the present disclosure provides a method performed by a user equipment and a user equipment, so that the UE can correctly determine the indication of whether to perform PDCCH detection for each service cell.

[0006] According to the present disclosure, a method performed by a user equipment (UE) is proposed, comprising: determining a size of a bit map for the UE in a low power wake-up signal (LP-WUS); determining a sequence number of each serving cell in the bit map; and for each serving cell, detecting an indication for the serving cell from the received LP-WUS according to the sequence number to determine whether to perform PDCCH detection in the serving cell.

[0007] Preferably, the size of the bit map is determined according to at least one of:

[0008] - the number of serving cells with enabled identification;

[0009] - the number of serving cells where BWP / CORESET / search space / PDCCH / PDSCH / PUSCH is configured with enabled identification;

[0010] - the number of serving cells indicated by the bit map of the serving cells using LP-WUS;

[0011] - the number of serving cells indicated by the sequence number list of the serving cells using LP-WUS;

[0012] - the number of serving cell groups indicated by the bit map of the serving cells using LP-WUS; and

[0013] - the maximum sequence number of the serving cells indicated by the sequence number list of the serving cells using LP-WUS.

[0014] Preferably, the sequence number of each serving cell in the bit map is determined according to at least one of:

[0015] - the sequence number of the serving cell with enabled identification;

[0016] - the sequence number of the serving cell where BWP / CORESET is configured with enabled identification;

[0017] - the sequence number of the serving cell indicated by the bit map of the serving cells using LP-WUS;

[0018] - the sequence number of the serving cell in the sequence number list of the serving cells indicated by LP-WUS; and

[0019] - the sequence number of the serving cell group indicated by the bit map of the serving cells using LP-WUS.

[0020] In addition, according to the present disclosure, a method performed by a user equipment, UE, is proposed, comprising: determining a serving cell to which an indication of one bit for the UE in a low power wake-up signal, LP-WUS, is applied; and determining whether to perform detection of PDCCH in the determined serving cell according to the one bit for the UE in the received LP-WUS.

[0021] Preferably, the serving cell to which the indication in the LP-WUS is applied is determined according to at least one of:

[0022] - a serving cell configured with an enabled identity;

[0023] - a serving cell in which a BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with an enabled identity is located;

[0024] - a serving cell indicated by the LP-WUS according to a bitmap of serving cells;

[0025] - a serving cell indicated by the LP-WUS according to a list of serving cell indexes; and

[0026] - a serving cell indicated by the LP-WUS according to a group of serving cell indexes.

[0027] Further, according to the present disclosure, a method performed by a user equipment, UE, is proposed, comprising: determining a size of bit positions occupied by a codepoint for the UE in a low power wake-up signal, LP-WUS; determining a codepoint value corresponding to each serving cell; and for each serving cell, detecting an indication for the serving cell from the received LP-WUS according to the codepoint value to determine whether to perform detection of PDCCH in the serving cell.

[0028] Preferably, the size of bit positions occupied by the codepoint is determined according to at least one of:

[0029] - a number of serving cells configured with an enabled identity;

[0030] - a number of serving cells in which a BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with an enabled identity is located;

[0031] - a number of serving cells indicated by the LP-WUS according to a bitmap of serving cells;

[0032] - a number of serving cells indicated by the LP-WUS according to a list of serving cell indexes;

[0033] - a number of groups of serving cells indicated by the LP-WUS according to a group of serving cell indexes.

[0034] - according to the service cell group sequence number, the service cell sequence number of the service cell indicated by the LP-WUS; and

[0035] - according to the number of different service cell combinations.

[0036] Preferably, the codepoint value corresponding to each service cell is determined according to at least one of the following:

[0037] - the service cell sequence number of the service cell configured with enable-identity;

[0038] - the service cell sequence number of the service cell in which the BWP / CORESET configured with enable-identity is located;

[0039] - according to the service cell bitmap, the service cell sequence number of the service cell indicated by the LP-WUS;

[0040] - according to the service cell sequence number list, the sequence number of the service cell indicated by the LP-WUS in the list; and

[0041] - according to the service cell group sequence number, the service cell sequence number of the service cell indicated by the LP-WUS.

[0042] In addition, according to the present disclosure, a user equipment is provided, comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the above-mentioned method.

[0043] Inventive Effects

[0044] According to the present disclosure, the UE can correctly determine the indication of whether to perform PDCCH detection for each service cell. BRIEF DESCRIPTION OF DRAWINGS

[0045] The above and other features of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0046] Figure 1 FIG. 1 is a flowchart illustrating a method one performed by a user equipment according to an embodiment of the present disclosure.

[0047] Figure 2 FIG. 2 is a flowchart illustrating a method two performed by a user equipment according to an embodiment of the present disclosure.

[0048] Figure 3 FIG. 3 is a flowchart illustrating a method three performed by a user equipment according to an embodiment of the present disclosure.

[0049] Figure 4 FIG. 4 is a block diagram illustrating a user equipment UE related to the present disclosure. DETAILED DESCRIPTION

[0050] The present disclosure is explained in greater detail in the following description and in conjunction with the figures and examples presented. It should be noted, however, that the disclosure should not be limited to the specific embodiments presented but rather the scope of the subject matter is broader than so presented. Further, the detailed description uses specific terminology merely to edify the subject matter to those skilled in the art. However, the use of such specific terminology is not intended to limit the scope of the disclosure but rather the specific embodiments presented are intended to be illustrative only.

[0051] Generally, all terms used in the present disclosure, unless otherwise stated or implicitly clear from context, are to be interpreted according to their ordinary meaning. All references to a / an / the item, device, apparatus, component, means, step, etc. are to be interpreted openly as referring to at least one instance of whatever is being referred to unless otherwise indicated. Methods presented in embodiments of the present disclosure are not necessarily performed in the exact order presented. Any necessary steps can be performed in any order. Any of the embodiments of the present disclosure can be combined with any other embodiment unless explicitly stated otherwise. Also, any of the advantages of any of the embodiments can be combined with any other embodiment unless explicitly stated otherwise.

[0052] The following describes in detail a number of embodiments according to the present disclosure, with 5G / NR mobile communication systems and their subsequent evolution versions as example application environments. However, it is pointed out that the present disclosure is not limited to the following embodiments, but is applicable to more other wireless communication systems, such as 5G after the communication system and 4G, 3G mobile communication system before 5G, 802.11 wireless network, etc.

[0053] The following describes some of the terms related to the present disclosure. As not specifically stated, the terms related to the present disclosure are defined here. The terms given in the present disclosure can be named differently in LTE, LTE-Advanced, LTE-Advanced Pro, NR and later or other communication systems, but the present disclosure uses unified terms, which can be replaced by the terms used in the corresponding system when applied to a specific system.

[0054] 3GPP: 3rd Generation Partnership Project, Third Generation Partnership Project

[0055] LTE: Long Term Evolution, Long Term Evolution technology

[0056] NR: New Radio, New Radio, New Radio

[0057] UE: User Equipment

[0058] gNB: NR base station

[0059] BWP: BandWidth Part

[0060] SFN: System frame number

[0061] OFDM: Orthogonal Frequency Division Multiplexing

[0062] SCS: sub-carrier spacing

[0063] RB: Resource Block

[0064] TDD: Time Division Duplexing

[0065] FDD: Frequency Division Duplexing

[0066] CSI: Channel State Information

[0067] DCI: Downlink Control Information

[0068] CRC: Cyclic Redundancy Check

[0069] QCL: Quasi co-location

[0070] HARQ: Hybrid Automatic Repeat Request

[0071] CORESET: Control resource set

[0072] MIB: Master Information Block

[0073] SIB: system information block

[0074] SSB: Synchronization Signal / Physical Broadcast Channel Block

[0075] SRS: Sounding Reference Signal

[0076] DMRS: Demodulation Reference Signal

[0077] CSI-RS: Channel State Information Reference Signal

[0078] RACH: Random-Access Channel

[0079] PBCH: Physical Broadcast Channel

[0080] PUCCH: Physical Uplink Control Channel

[0081] PUSCH: Physical Uplink Shared Channel

[0082] PRACH: Physical Random-Access Channel

[0083] PDSCH: Physical Downlink Shared Channel

[0084] PDCCH: Physical Downlink Control Channel

[0085] UL-SCH: Uplink Shared Channel

[0086] DL-SCH: Downlink Shared Channel

[0087] C-RNTI: Cell Radio Network Temporary Identifier

[0088] P-RNTI: Paging RNTI

[0089] RA-RNTI: Random Access RNTI, random access radio network temporary identifier

[0090] CS-RNTI: Configured Scheduling RNTI, configured scheduling radio network temporary identifier

[0091] SI-RNTI: System Information RNTI, system information radio network temporary identifier

[0092] TC-RNTI: Temporary C-RNTI, temporary cell radio network temporary identifier

[0093] LP-WUS: low power wake up signal

[0094] RRM: Radio Resource Management, radio resource management

[0095] RRC: Radio Resource Control, radio resource control

[0096] TCI: Transmission Configuration Indicator, transmission configuration indicator

[0097] MSB: Most Significant Bit, most significant bit

[0098] LSB: Least Significant Bit, least significant bit

[0099] The following is a description of the technology associated with the present disclosure. Unless otherwise specified, the meanings of the same terms in the specific embodiments are the same as in the associated technology.

[0100] It is worth pointing out that the user equipment UE involved in the present disclosure is any end device that accesses a communication network and receives services therefrom, which can be a smart phone, a mobile phone, a tablet computer, a mobile station, an access terminal, a sensor, a wearable device, etc. The present disclosure can also use the terms user, terminal, etc. to describe the method used by the user equipment, and these terms are not specifically distinguished and limited from the user equipment UE. The network equipment is the equipment that communicates with the user equipment, including but not limited to wireless base stations, gNBs, eNBs, wireless APs, wireless relays, user equipment with relay capabilities, etc. The present disclosure can use the wireless base station as a form of implementation of the network equipment, and other forms of network equipment can be easily used to replace it in specific implementation.

[0101] When using Carrier Aggregation (CA), two or more Component Carriers (CCs) are aggregated together. Depending on the UE's capability, a UE can receive or transmit on one or multiple CCs simultaneously. For example, a non-CA capable UE can only receive on one CC and transmit on one CC related to one serving cell; a single TA (timing advance) capable UE can receive / transmit on multiple CCs simultaneously, which are related to serving cells using the same TA; a multi-TA capable UE can receive / transmit on multiple CCs simultaneously, which can be related to serving cells using different TAs, etc.

[0102] When CA is configured, a UE has only one RRC connection with the network. At RRC connection setup / re-establishment / handover, one serving cell provides NAS (non-access stratum service) mobility information, and at RRC connection re-establishment / handover, one serving cell provides security input. This serving cell can be referred to as the primary cell (PCell). Depending on the UE's capability, secondary cells (SCells) can be configured simultaneously with the PCell, forming a serving cell group (or serving cell set). A configured serving cell group always contains one PCell and one or more SCells. The base station can add / drop / reconfigure SCells by RRC signaling. In addition, a UE that does not support CA can have only one PCell.

[0103] Each serving cell uses a serving cell index, for example, the PCell's serving cell index is always 0, and other SCells use an integer value to uniquely identify the serving cell.

[0104] The base station can configure the parameters of the PCell and SCell for the UE through the serving cell parameters, for example, configure the uplink and downlink CC parameters used by the serving cell through ServingCellConfigCommon, configure one or more uplink and downlink BWP parameters used by the serving cell through ServingCellConfig, the CORESET, search space, PDCCH, PDSCH, PUSCH, etc. parameters used on the BWP, for the UE to perform service transmission on the related serving cell.

[0105] When a UE supports DC (Dual Connectivity), the UE can be configured with two serving cell groups, one as master cell group (MCG) and the other as secondary cell group (SCG). Each cell group contains one MAC entity, a set of logical channels, and one primary cell and one or more SCells. The primary cell of the SCG is also referred to as Pscell.

[0106] Spcell (Special Cell) is also used to refer to the PCell when the UE is configured with DC, that is, when the UE is configured with DC, the Spcell refers to the PCell of the MCG or the Pscell of the SCG, otherwise, the Spcell is the PCell.

[0107] If one MAC entity is configured with one or more SCells, the base station can activate and deactivate these configured SCells. The UE determines the activation or deactivation of a SCell by one of the following methods:

[0108] - receiving a SCell activation / deactivation MAC CE (MAC control element) and determining the activation / deactivation of the SCell according to the indication therein;

[0109] - receiving an enhanced SCell activation / deactivation MAC CE and determining the activation / deactivation of the SCell according to the indication therein;

[0110] - the base station configures a timer sCellDeactivationTimer for a SCell (except for the SCell configured with PUCCH), and the relevant SCell is deactivated when the timer expires

[0111] - the base station configures a parameter sCellState for a SCell, and if the parameter is configured, the relevant SCell is activated once the SCell is configured;

[0112] - receiving scg-State, and the SCell of the SCG is deactivated.

[0113] For an SCell, a dormant BWP can be configured by a parameter dormantBWP-Id in RRC signaling. UE entering or leaving the dormant BWP on an SCell can be implemented by BWP switching of the SCell based on the indication in PDCCH. The base station can use PDCCH to send a dormancy indication to indicate the dormancy or non-dormancy of an SCell. For example, using "0" in a bit map in DCI to indicate that the active BWP of the SCell is set to the dormant BWP, and using "1" to indicate that the SCell uses the current BWP to set the active BWP if the current BWP is not the dormant BWP; or set the first active BWP configured by the higher layer to the active BWP if the current BWP is the dormant BWP. If the active BWP of an SCell is the dormant BWP, the UE can stop some processing on the SCell, such as not detecting PDCCH on the BWP, or not detecting PDCCH scheduling the BWP, not receiving DL-SCH on the BWP, etc. The SCell or the SCell configured with PUCCH does not use the configuration of the dormant BWP (that is, does not determine the dormancy of the SCell according to the dormancy indication of the DCI).

[0114] In an NR network, after a user equipment (UE) establishes a radio connection with a base station, the UE can enter a connected state (RRC CONNECTED) and perform data transmission according to the configuration or scheduling of the base station. The base station can configure a DRX (discontinuous reception) function through RRC signaling to control the detection of PDCCH using certain MAC entity RNTIs by the connected UE, for example, to control the UE to detect the related PDCCH only when certain timers are running. These RNTIs include, but are not limited to, C-RNTI, CI-RNTI, CS-RNTI, INT-RNTI, SFI-RNTI, SP-CSI-RNTI, TPC-PUCCH-RNTI, TPC-PUSCH-RNTI, TPC-SRS-RNTI, AI-RNTI, SL-RNTI, SL-CSI-RNTI, SL Semi-Persistent Scheduling V-RNTI, cellDTRX-RNTI, etc. The DRX for the connected UE can also be referred to as C-DRX. When the connected UE is configured with DRX by the base station, the MAC entity can perform discontinuous PDCCH detection for all activated serving cells according to the related DRX procedure. The UE can determine the scheduling of the related PDSCH or PUSCH, or the activation or deactivation of the related PDSCH or PUSCH transmission, etc. according to the DCI in the detected PDCCH.

[0115] Multiple serving cells in one MAC entity of a UE can be configured to up to two DRX groups, each DRX group using some independent parameters and some common parameters. When two DRX groups are configured, the UE can determine that each serving cell belongs to one of the two DRX groups. When the second DRX group is not configured by RRC, the UE has only one DRX group and all serving cells belong to this DRX group.

[0116] When a UE uses DRX, the parameters configured / used independently by each DRX group include drx-onDurationTimer and drx-InactivityTimer. A DRX group also uses several common parameters, such as drx-SlotOffset used to determine the starting position of drx-onDurationTimer in a DRX cycle, drx-LongCycleStartOffse used to determine the cycle period and starting offset of long DRX cycle; downlink and uplink retransmission timers drx-RetransmissionTimerDL, drx-RetransmissionTimerUL, etc.

[0117] The base station configures the parameter drx-onDurationTimet for determining the timing of the timer drx-onDurationTimet. The UE can start the timer drx-onDurationTimet at the beginning of each DRX cycle, and the timing length is the value indicated by the parameter drx-onDurationTimet. For ease of description, the first time slot in which the UE can start the drx-onDurationTimer in each DRX cycle is referred to as the C-DRX time slot, or simply referred to as the DRX time slot.

[0118] When the base station configures DRX for the UE, the cells in the DRX group are in Active Time when the following conditions are met:

[0119] - the drx-onDurationTimet or drx-InactivityTimer configured for the DRX group is running; or

[0120] - the drx-RetransmissionTimerDL, drx-RetransmissionTimerUL or drx-RetransmissionTimerSL is running on any serving cell of the DRX group; or

[0121] - the timer ra-ContentionResolutionTimer or msgB-ResponseWindow for random access (RA) is running; or

[0122] - a Scheduling Request (SR) is sent via PUCCH and is pending.

[0123] - a PDCCH indicating a new transmission related to C-RNTI has not been received after successfully receiving a RAR, and the RAR is related to a non-contention based RA preamble; etc.

[0124] If a DRX group is in active time, the UE can detect PDCCH on the serving cell of the DRX group and perform related processing according to the information in the detected PDCCH, such as downlink / uplink data transmission, HARQ feedback, HARQ retransmission, etc.

[0125] According to the related DRX operation procedure, the UE needs to perform PDCCH detection in the active time of DRX. If the active time determined according to the related parameters configured by the base station is long, the UE needs to detect PDCCH even if there is no data transmission, which leads to unnecessary power consumption. If the active time is short, the opportunity for the UE to use for data transmission is reduced, which leads to an increase in data transmission delay. In addition, some SCells may not support or be suitable for using sleep or deactivation to reduce power consumption.

[0126] To further reduce the power consumption of the UE and reduce the delay, a feasible method is that the user equipment uses a low-power receiver (LR) to detect the wake-up signal (LP-WUS) sent by the base station. When there is no data transmission, the main radio (MR) of the user equipment remains in a sleep state to minimize the power consumption of the user equipment; when there is data to be transmitted, the base station notifies the user equipment through the LP-WUS. When the user equipment detects the indication carried in the LP-WUS, the UE wakes up the MR and performs corresponding data processing. Hereinafter, the LP-WUS can also be referred to as WUS for brevity and will not be described one by one. When the UE is implemented, different or common components can be used to perform related processing, for example, the LR is used to detect the LP-WUS, and the MR is used to detect the PDCCH. For ease of description, the UE can be used to describe the related LR or MR usage method and processing procedure in this disclosure. When implemented, the UE can call the related components of the LR or MR to perform according to the specific needs.

[0127] The indication information in one LP-WUS signal can include the indication information of multiple or multiple groups of user equipment, such as including different user equipment IDs, or indication bits of multiple UEs or UE groups, or sequences of different UEs or UE groups, and the like. The UEs in one UE group can partially or entirely share the indication for the UE group. The user equipment can determine the indication information corresponding to the user equipment or user group in the LP-WUS according to a certain method. For example, when the LP-WUS provides the indication information in the form of a bit map, the UE can determine the bit position of the indication information of the user equipment or user group according to the relevant parameters, and use bit "1" to indicate that the UE detects PDCCH or starts the relevant timer in the relevant process; use bit "0" to indicate that the UE does not detect PDCCH or does not start the relevant timer in the relevant process. For another example, when the LP-WUS provides the indication information in the form of a sequence, there is a specific sequence related to the UE in the LP-WUS, which is used to indicate that the UE detects PDCCH or starts the relevant timer in the relevant process; there is no specific sequence related to the UE in the LP-WUS, which is used to indicate that the UE does not detect PDCCH or does not start the relevant timer in the relevant process. There can be other ways to determine the indication information of the user equipment or user group in the actual system, which are not limited here. In the present disclosure, for the sake of simplifying the description, the indication in the LP-WUS is the indication corresponding to the UE or UE group in the LP-WUS.

[0128] The LP-WUS signal can use the waveform of OOK (On-Off keying) for transmission to reduce the complexity of the receiver. In order to be compatible with the existing NR equipment, the LP-WUS signal can be generated in a manner compatible with OFDM symbols, such as using multi-carrier OOK. At this time, on the bandwidth of the LP-WUS signal, an integer number of OOK symbols can be contained in one OFDM symbol length, such as 1 / 2 / 4 / 8 / 16, and the like, so that the base station is easy to implement the signal transmission of different waveforms. Therefore, the length of the time domain resource used by the related LP-WUS in the time domain can also be described using the parameters of the number of OFDM symbols, the number of slots, the number of frames, and the like.

[0129] The base station can use an OOK signal to transmit the relevant LP-WUS when indicating the relevant processing of the UE using the LP-WUS, for example, using the ON and OFF states of the OOK signal to represent "1" and "0". At the same time, when the base station transmits the relevant OOK signal, it can also transmit some additional information on the resources used by the OOK signal. For example, when transmitting the OOK symbol "1", a specific sequence is used, and the UE can determine different indication information according to different sequences. To simplify the description, the information determined by the UE on one LP-WUS according to the ON / OFF state of the OOK symbol can be set as the first information, and the information determined according to the ON / OFF state of the non-OOK symbol can be set as the second information. The UE can report its capability to the base station, for example, capable of detecting the first information according to the LP-WUS (referred to as capability 1), or capable of detecting the first and second information according to the LP-WUS (referred to as capability 2). If it is not explicitly stated in the disclosure whether the first or second information is used, the UE can determine the indication in the relevant LP-WUS according to the first and / or second information. In addition, the first and second information may

[0130] When the connected UE uses the LP-WUS, it can use different processes according to the configuration and indication of the network to achieve cooperation with other channels and configurations. For example, when the UE is configured with DRX, the UE detects the LP-WUS before the C-DRX slot and determines whether to start the drx-onDurationTimer of a DRX cycle according to the indication in the LP-WUS; or detects the LP-WUS outside the DRX active time and determines whether to detect the PDCCH according to the indication in the LP-WUS, so as to reduce the time delay of data transmission while keeping the UE at a low power consumption; or detects the LP-WUS within the DRX active time and determines whether to detect the PDCCH and receive the PDSCH according to the indication in the LP-WUS, so as to more accurately indicate the data arrival time and reduce the UE power consumption. In addition, if the connected UE is not configured with DRX, the UE can also determine the detection of the PDCCH according to the indication of the LP-WUS. In summary, the base station can configure the relevant LP-WUS resources for the UE, and the connected UE determines the relevant processing by detecting the LP-WUS and according to the indication of the LP-WUS, thereby reducing the power consumption of the UE and improving the user experience.

[0131] The UE detects the LP-WUS on a plurality of time-frequency resources determined according to the LP-WUS parameters configured by the base station. These time-frequency resources used to detect the LP-WUS can be referred to as a plurality of LP-WUS monitoring occasions (LP-WUS MO, or simply LMO).

[0132] The base station can configure the LP-WUS resources for different procedures or functions, and instruct the connected mode UE to perform the related processing. Different indication methods can be applied in the disclosure for the LP-WUS for different procedures or functions. For example, the LP-WUS for starting the DRX timer uses 1 bit to indicate the detection of all serving cells. The LP-WUS for the DRX active time uses a bitmap to indicate the serving cells, and so on. The UE can determine the corresponding indication method according to the related procedure definition or parameter configuration. The UE can also determine the size of the information for indicating the UE in the related LP-WUS according to other configuration parameters in the network, such as the configuration of the SCell, and the UE can also perform the corresponding processing according to the indication, and so on, to achieve the coordinated processing of the network and the UE, so as to reduce the power consumption of the UE by using the LP-WUS.

[0133] The following embodiments are provided to describe the embodiments of the disclosure in more detail.

[0134] When the connected mode UE supports CA, the base station can configure one or more SCells for the UE. The UE can perform data transmission on these SCells. Different services can be performed on these SCells, and different transmission requirements can be required. When the base station configures one or more SCells for the UE, the UE can determine the processing on the related PCell or SCell by using one of the following indication information of the LP-WUS:

[0135] - the indication is a 1-bit bitmap, each bit corresponds to the processing of one serving cell PCell or

[0136] SCell;

[0137] - the indication is a 1-bit bitmap, each bit corresponds to the processing of a group of serving cells PCell or

[0138] SCell;

[0139] - the indication is a 1-bit, corresponding to the processing of a plurality of serving cells PCell or SCell;

[0140] - the indication is a code point, corresponding to the processing of a plurality of serving cells PCell or SCell.

[0141] The forms of the indication information listed here are some examples, and there can be other ways, which are not listed one by one.

[0142] In addition, to enable the UE to correctly determine the processing on each PCell or SCell according to the indication, the UE can also determine the correspondence between the indication and each serving cell according to the configuration of the base station, for example, the base station can determine which serving cells are associated with a certain bit in the indication information through related configuration, and the related configuration can be one or a combination of the following:

[0143] - an identifier in the serving cell parameter

[0144] - an identifier in the BWP parameter

[0145] - an identifier in the CORESET / search space / PDCCH / PDSCH / PUSCH parameter

[0146] - a bitmap indicating the serving cell

[0147] - a list of serving cell indices indicating the serving cell

[0148] - a list indicating the serving cell combination

[0149] Among them, the identifier in the serving cell parameter can use different identification methods. For example, in the RRC parameter of the serving cell configured by the higher layer, an identifier X is used to represent the identifier, when X is configured to enable (for example, using the enabled indication to enable, here enable can also use other names, such as activate / come into effect, etc.), it means that the UE determines the processing on the serving cell according to the indication in the LP-WUS. When the parameter X is not configured or is configured to be disabled (for example, using the disabled indication to disable, here disable can also use other names, such as not activate / not come into effect, etc.), it means that the UE does not determine the processing on the serving cell according to the indication in the LP-WUS. The base station can also use similar methods in the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameter to configure parameters with similar functions as parameter X, so that the UE can determine whether to determine the relevant processing according to the indication in the LP-WUS according to the resources corresponding to the related BWP / CORESET / search space

[0150] / PDCCH / PDSCH / PUSCH parameter, such as PDCCH detection or PDSCH / PUSCH transmission on the BWP, or detecting PDCCH on the resources corresponding to the related CORESET / search space / PDCCH parameter, or PDSCH or PUSCH transmission on the resources corresponding to the PDSCH or PUSCH parameter.

[0151] In another example, the identification can also be a group number. For example, the base station configures a group number for the serving cells for which the UE determines the processing according to the indication in the LP-WUS. The serving cells can be divided into groups according to the group number. When a group number is configured in a service cell parameter, the UE can determine the indication in the LP-WUS indication information for the service cell or the group to which the service cell belongs according to the group number.

[0152] In another optional example, the network can also use a bitmap of the serving cells to indicate which serving cells the UE determines the processing on according to the indication in the LP-WUS. For example, a bitmap is configured in an RRC parameter, and the size of the bitmap is the number of serving cells configured by the base station for the UE. Each serving cell corresponds to a bit in the bitmap according to the size of the cell number, for example, from small to large, corresponding to the MSB to LSB of the bitmap. When the bit corresponding to a certain serving cell in the bitmap is "1", it means that the UE determines the processing on the serving cell according to the indication in the LP-WUS; when the bit corresponding to a certain serving cell in the bitmap is "0", it means that the UE does not determine the processing on the serving cell according to the indication in the LP-WUS. Optionally, the base station can also configure or update the bitmap through a MAC parameter (such as MAC-CE). The UE can determine which serving cells the UE determines the processing on according to the indication in the LP-WUS according to the latest determined bitmap.

[0153] In another optional example, the network can also use a list of serving cell numbers to configure which serving cells the UE determines the processing on according to the indication in the LP-WUS. For example, a list of serving cell numbers is configured in an RRC parameter. If a serving cell number is in the list, it means that the UE determines the processing on the serving cell according to the indication in the LP-WUS; otherwise, it means that the UE does not determine the processing on the serving cell according to the indication in the LP-WUS.

[0154] When the connected state UE determines the processing on the serving cell according to the configuration of the base station and the indication in the LP-WUS, the UE can determine the relevant indication method according to one or more of the above examples. At this time, the UE also needs to determine the size of the indication information in the relevant LP-WUS for the UE or the UE group (such as the size of the bitmap, the range of the code point value, etc.), and how to determine the processing on the serving cell according to the relevant indication, etc. In addition, the identification / bitmaps / cell lists, etc. in various examples here can be configured for a certain function of the LP-WUS, and different LP-WUS functions can have independent configurations. The UE can determine the relevant parameters and processing for a certain LP-WUS according to the relevant configuration and method.

[0155] Figure 1 is a flowchart illustrating a method one performed by a user equipment according to an embodiment of the disclosure.

[0156] As shown in FIG. 1, in step 101, the size of a bit map is determined. Figure 1

[0157] According to an aspect of the disclosure, the indication of whether the UE / UE group is to perform the relevant processing in the LP-WUS is a bit map, and each bit of the bit map corresponds to the indication information of one or a group of serving cells.

[0158] Optionally, the UE determines the size of the bit map according to one of the following methods:

[0159] - the number of serving cells configured with the enablement indication

[0160] - the number of serving cells where the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with the enablement indication is located

[0161] - the number of serving cells indicated by the LP-WUS according to the bit map of the serving cells

[0162] - the number of serving cells indicated by the LP-WUS according to the list of serving cell indexes

[0163] - the number of groups of serving cells indicated by the LP-WUS according to the group indexes of the serving cells

[0164] - the maximum group index of the serving cells indicated by the LP-WUS according to the group indexes of the serving cells

[0165] In one specific example, when the UE determines whether to determine the processing on the serving cells according to the indication in the LP-WUS according to the serving cell indexes configured by the higher layer, the size of the bit map of the indication of whether the UE / UE group is to perform the relevant processing in the LP-WUS is the number of serving cells whose identities are configured to be enabled.

[0166] In another example, when the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameters configured by the higher layer (for example, in the RRC signaling) are used to determine whether the UE determines the processing on the serving cells according to the indication in the LP-WUS using the identities, the size of the bit map of the indication of whether the UE / UE group is to perform the relevant processing in the LP-WUS is the number of serving cells where the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with the enablement indication is located.

[0167] ​In another example, when the higher layer (e.g. in RRC signaling) uses a bitmap to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the size of the bitmap in the LP-WUS for one UE / UE group to determine whether the relevant processing is performed is the number of the serving cells whose indication in the bitmap is "1".

[0168] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the size of the bitmap in the LP-WUS for one UE / UE group to determine whether the relevant processing is performed is the number of the serving cells in the list.

[0169] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the size of the bitmap in the LP-WUS for one UE / UE group to determine whether the relevant processing is performed is the number of the serving cells in the list.

[0170] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the size of the bitmap in the LP-WUS for one UE / UE group to determine whether the relevant processing is performed is the number of the serving cells in the list.

[0171] Optionally, when the PCell in the network applies the relevant LP-WUS indication by default, the PCell can not be configured in the RRC parameter to reduce the signaling overhead. In this case, the UE determines the size of the indication in the LP-WUS according to the above method, and the size determined by one of the above examples is added by 1 as the size of the bitmap of the indication information for the UE / UE group in the LP-WUS.

[0172] Optionally, when one or more SCells are configured by the higher layer signaling (such as RRC signaling or MAC signaling) to be not activated, the UE determines the size of the bitmap of the indication information for the UE / UE group in the LP-WUS according to the remaining activated SCells and in combination with the above method.

[0173] In step 103, the sequence number of the serving cell in the bitmap is determined.

[0174] Optionally, the UE also determines the sequence number of the indication of the serving cell in the bitmap, and the UE can determine the relevant sequence number according to one of the following methods:

[0175] - the serving cell number of the serving cell for which the identification is enabled

[0176] - the serving cell number of the serving cell for which the BWP / CORESET / located serving cell is enabled

[0177] - the serving cell number of the serving cell for which the LP-WUS indicates according to the bitmap of serving cells

[0178] - the order of the serving cell for which the LP-WUS indicates in the list of serving cell numbers

[0179] - the group number of the serving cell for which the LP-WUS indicates according to the group number of serving cells

[0180] In one specific example, when the UE determines whether to determine the processing on the serving cell according to the indication in the LP-WUS according to the identification of the serving cell configured by the higher layer (e.g. in RRC signaling), the order of the serving cell corresponding to the bit bitmap in the LP-WUS for whether the UE / UE group performs relevant processing is the order of the serving cell number in the set of all serving cell numbers configured to be enabled in the serving cell group, for example, these serving cells are arranged in ascending order of their serving cell numbers, at this time, the UE corresponds to the MSB to LSB of the bit bitmap in ascending order of the serving cell number.

[0181] In another example, when the higher layer (e.g. in RRC signaling) configures

[0182] BWP / CORESET / search space / PDCCH / PDSCH / PUSCH, the order of the serving cell corresponding to the bit bitmap in the LP-WUS for whether the UE / UE group performs relevant processing is the order of the serving cell number in the set of all serving cell numbers configured to be enabled, for example, these serving cells are arranged in ascending order of their serving cell numbers, at this time, the UE corresponds to the MSB to LSB of the bit bitmap in ascending order of the serving cell number.

[0183] In another example, when the higher layer (e.g. in RRC signaling) uses a bitmap to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the index in the bitmap of the LP-WUS for a UE / UE group to determine whether the processing is related to a serving cell is the index of the serving cell in the bitmap (RRC signaling) whose indication is "1" in the set of serving cells whose indication is "1" in all the bitmap (RRC signaling), e.g. the serving cells are arranged in ascending order of their serving cell index, then the UE maps the serving cells to the MSB to LSB of the bitmap in ascending order of their serving cell index.

[0184] In another example, when the higher layer (e.g. in RRC signaling) uses a bitmap to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the index in the bitmap of the LP-WUS for a UE / UE group to determine whether the processing is related to a serving cell is the index of the serving cell in the bitmap (RRC signaling) whose indication is "1" in the set of serving cells whose indication is "1" in all the bitmap (RRC signaling), e.g. the serving cells are arranged in ascending order of their serving cell index, then the UE maps the serving cells to the MSB to LSB of the bitmap in ascending order of their serving cell index.

[0185] In another example, when the higher layer (e.g. in RRC signaling) uses a bitmap to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the index in the bitmap of the LP-WUS for a UE / UE group to determine whether the processing is related to a serving cell is the index of the serving cell in the bitmap (RRC signaling) whose indication is "1" in the set of serving cells whose indication is "1" in all the bitmap (RRC signaling), e.g. the serving cells are arranged in ascending order of their serving cell index, then the UE maps the serving cells to the MSB to LSB of the bitmap in ascending order of their serving cell index.

[0186] Optionally, when the PCell in the network applies the related LP-WUS indication by default, the PCell can not be configured in the RRC parameter to reduce the signaling overhead. In this case, when the UE determines the indication size in the LP-WUS according to the above method, the first bit (e.g. MSB) is always used to determine the related indication information of the PCell, and the other SCells use the related bits in turn.

[0187] In step 105, the related processing is determined.

[0188] After the UE determines the indication index corresponding to the serving cell, when the indication in the LP-WUS is detected, the UE can determine the processing on each serving cell according to the related indication. For example, when the indication corresponding to the serving cell is "1", the UE performs PDCCH detection on the related serving cell. When the indication corresponding to the serving cell is "0", the UE does not need to perform PDCCH detection on the related serving cell.

[0189] Optionally, the UE is configured to determine the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameters according to the indication in the LP-WUS

[0190] Optionally, the UE is configured to determine the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameters according to the indication in the LP-WUS

[0191] Optionally, the UE is configured to determine the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameters according to the indication in the LP-WUS

[0192] Optionally, the UE is configured to determine the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameters according to the indication in the LP-WUS

[0193] Figure 2 is a flowchart illustrating a method two performed by a user equipment according to an embodiment of the present disclosure.

[0194] In step 201, the UE determines the serving cells for which the indication in the LP-WUS is applied.

[0195] In another optional example of the present disclosure, the indication in the LP-WUS for whether a user / user group is subject to the relevant processing is one bit, and the UE can determine which serving cells are subject to the relevant processing according to the indication in the LP-WUS according to one of the following manners:

[0196] - the serving cells for which the enabling indication is configured

[0197] - the serving cells in which the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH for which the enabling indication is configured

[0198] - the serving cells indicated by the bit map of the serving cells in the LP-WUS

[0199] - the serving cells indicated by the LP-WUS according to the serving cell index list

[0200] - the serving cells indicated by the LP-WUS according to the serving cell group index list

[0201] In step 203, the UE determines the related processing according to the indication in the LP-WUS.

[0202] The UE determines the serving cells to which the indication in the LP-WUS applies, and when the indication in the LP-WUS is detected, the UE determines the processing in each serving cell according to the related indication. For example, when the indication is “1”, the UE performs PDCCH detection in the related serving cell. When the indication is “0”, the UE does not perform PDCCH detection in the related serving cell.

[0203] Optionally, the UE determines the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH parameters according to the indication in the LP-WUS.

[0204] When the indication in the LP-WUS is detected, the UE determines the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH processing according to the related indication. For example, when the indication corresponding to a serving cell is “1”, the UE performs PDCCH detection on the related BWP, or PDCCH detection using the related CORESET / search space parameters, or receives or transmits the related PDSCH / PUSCH. Conversely, when the indication corresponding to a serving cell is “0”, the UE does not perform PDCCH detection on the related BWP, or PDCCH detection using the related CORESET / search space parameters, or receives or transmits the related PDSCH / PUSCH (e.g. PDSCH / PUSCH without dynamic scheduling).

[0205] Optionally, here the UE performing PDCCH detection in the related serving cell can also depend on other configurations, for example, according to the active or inactive state of the related cell, the UE does not perform PDCCH detection on the SCell that is not active, or the UE does not expect the indication for the SCell that is not active to be “1”. For another example, according to the active or inactive state of the BWP, the UE does not perform PDCCH / PDSCH / PUSCH detection or reception or transmission on the BWP that is not active.

[0206]

[0207] Figure 3 is a flowchart illustrating a method three performed by a user equipment according to an embodiment of the present disclosure.

[0208] In step 301, the size of the bit occupied by the codepoint is determined. ​

[0209] In another optional example of the present disclosure, the indication in the LP-WUS for one UE / UE group whether to perform the relevant processing is a codepoint. The codepoints representing different indications can be represented using several bits or several sequences. One codepoint value can correspond to the indication information of one serving cell or the indication information of a group of serving cells. The length of the bits or the number of different sequences is the size of the codepoint. For ease of description, the size of the bits occupied by the codepoint is used for description here, and similar methods can be used to obtain relevant parameters (such as the total number of different codepoints) when other indication forms (such as different sequences) are used. Optionally, the UE determines the size of the bits occupied by the codepoint according to one of the following methods:

[0210] - the number of serving cells configured with enabled identification

[0211] - the number of serving cells where the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with enabled identification is located

[0212] - the number of serving cells indicated by the LP-WUS according to the bitmap of the serving cells

[0213] - the number of serving cells indicated by the LP-WUS according to the list of the serving cell indexes

[0214] - the number of groups of serving cells indicated by the LP-WUS according to the group indexes of the serving cells

[0215] - the maximum group index of the serving cells indicated by the LP-WUS according to the group indexes of the serving cells

[0216] - the number of different combinations of serving cells

[0217] In one specific example, when the UE determines whether to determine the processing on the serving cells according to the indication in the LP-WUS according to the identification of the serving cells configured by the higher layer (such as in the RRC signaling), the number N used to determine whether the relevant processing is performed in the LP-WUS for one UE / UE group is the number of serving cells whose identification is configured to be enabled.

[0218] In another example, when the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH uses identification configured by the higher layer (such as in the RRC signaling) to determine whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the number N used to determine whether the relevant processing is performed in the LP-WUS for one UE / UE group is the number of serving cells where the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with enabled identification is located.

[0219] In another example, when the higher layer (e.g. in RRC signaling) uses a bitmap to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the number N used to determine whether the UE / UE group performs the relevant processing in the LP-WUS is the number of the serving cells whose indication is “1” in the bitmap corresponding to the serving cells.

[0220] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the number N used to determine whether the UE / UE group performs the relevant processing in the LP-WUS is the number of the serving cells in the list of serving cell indexes.

[0221] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the number N used to determine whether the UE / UE group performs the relevant processing in the LP-WUS is the number of the serving cells in the list of serving cell indexes.

[0222] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the number N used to determine whether the UE / UE group performs the relevant processing in the LP-WUS is the number of the serving cells in the list of serving cell indexes.

[0223] In another example, when the higher layer (e.g. in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the number N used to determine whether the UE / UE group performs the relevant processing in the LP-WUS is the number of the serving cells in the list of serving cell indexes.

[0224] Optionally, the size of the bit occupied by the codepoint is ceil(log2(N+K)). Where ceil is the ceiling operation, log2 is the logarithm operation with base 2, and K is a fixed number. In a typical example, K is 2, so that the method in Table 1 can be used to indicate the processing of each serving cell. In another optional example, K is 1, so that when the different serving cell combination list configured in the RRC signaling is used to determine whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the codepoint value “0” can be used to indicate that no relevant processing is performed on all serving cells, and the codepoint value corresponding to a certain serving cell combination in the combination can be used to indicate that the relevant processing is performed on the serving cells in the corresponding combination.

[0225] Optionally, when the PCell in the network applies the related LP-WUS indication by default, the PCell can not be configured in the RRC parameter to reduce the signaling overhead. At this time, when the UE determines the indication size in the LP-WUS according to the above method, the size of N+1 determined according to the above method is used as the size of the indication information for the UE / UE group in the LP-WUS, that is, the UE determines the bit position occupied by the code point as ceil(log2(N+K+1))

[0226] In step 303, the code point value corresponding to the serving cell is determined.

[0227] Optionally, the UE also determines the code point value corresponding to the serving cell. The UE can determine the related code point value according to one of the following methods:

[0228] - The service cell sequence number of the service cell configured with the enable identifier

[0229] - The service cell sequence number of the BWP / CORESET / located service cell configured with the enable identifier - The service cell sequence number of the service cell indicated by the LP-WUS according to the bit map of the service cell

[0230] - The sequence number of the service cell indicated by the LP-WUS according to the service cell sequence number list

[0231] - The group sequence number of the service cell indicated by the LP-WUS according to the service cell group sequence number

[0232] In one specific example, when the UE determines whether to determine the processing on the serving cell according to the indication in the LP-WUS according to the identifier of the serving cell configured by the high layer (for example, in the RRC signaling), the code point value corresponding to one serving cell in the LP-WUS for one UE / UE group whether to perform the related processing, that is, the sequence number of the service cell sequence number of the service cell configured with the enable identifier in the set of all service cell sequence numbers configured with the enable identifier in the service cell group, for example, arrange these service cells according to their service cell sequence numbers from small to large, the sequence number of one service cell in it. Optionally, according to the processing corresponding to the code point value, the sequence number here can be counted from 1.

[0233] In another example, when the high layer (for example, in the RRC signaling) configures

[0234] When the UE is configured to determine whether to determine the processing on the serving cells according to the indication in the LP-WUS, the codepoint corresponding to whether the UE / UE group is processed in the LP-WUS for a serving cell is the serving cell of the BWP / CORESET / search space / PDCCH / PDSCH / PUSCH configured with the enablement indication, the index in the set of serving cell indexes configured with the enablement indication, for example, the index of the serving cell in the set of serving cells arranged in ascending order of the serving cell indexes. Optionally, the index is counted from 1 according to the processing corresponding to the codepoint value.

[0235] In another example, when the higher layer (e.g., in RRC signaling) uses a bitmap to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the codepoint corresponding to whether the UE / UE group is processed in the LP-WUS for a serving cell is the serving cell with the indication of “1” in the bitmap, the index in the set of serving cells with the indication of “1” in the bitmap, for example, the index of the serving cell in the set of serving cells arranged in ascending order of the serving cell indexes. Optionally, the index is counted from 1 according to the processing corresponding to the codepoint value.

[0236] In another example, when the higher layer (e.g., in RRC signaling) uses a list of serving cell indexes to indicate whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the codepoint corresponding to whether the UE / UE group is processed in the LP-WUS for a serving cell is the index of the serving cell in the list. Optionally, the index is counted from 1 according to the processing corresponding to the codepoint value.

[0237] In another example, when the higher layer (e.g., in RRC signaling) uses a group index to determine whether the UE determines the processing on the serving cells according to the indication in the LP-WUS, the codepoint corresponding to whether the UE / UE group is processed in the LP-WUS is the group index used by the serving cell. Optionally, the index is counted from 1 according to the processing corresponding to the codepoint value.

[0238] In step 305, the related processing is determined.

[0239] After the UE determines the codepoint value corresponding to the serving cells, when the UE detects the indication in the LP-WUS, the UE can determine the processing in the serving cells according to the indication. For example, according to the codepoint value corresponding to the UE in the received LP-WUS, and the method in Table 1 corresponding to the codepoint value, the UE can determine the processing in the columns in Example 1 or Example 2 or Example 3. For another example, when the UE determines the processing of the BWP / PDSCH / PUSCH according to the LP-WUS, the UE can refer to the processing method of the PDCCH in Table 1.

[0240] Table 1

[0241]

[0242] Optionally, the UE can also obtain the indication information for the UE and determine the related processing in combination with the above method. For example, when the UE has the capability to detect the first and second information according to the LP-WUS (Capability 2), the UE can determine according to the 1-bit indication for the UE or UE group in the first information and the bit bitmap or codepoint for the UE or UE group in the second information. In a specific example, when the UE detects the 1-bit indication in the first information as “0”, the UE does not detect the PDCCH on the related serving cells, and when the UE detects the 1-bit indication in the first information as “1”, the UE further determines the serving cells on which to detect the PDCCH according to the bit bitmap or codepoint indicated in the second information.

[0243] Optionally, the UE can also determine the size of the indication information for the UE and determine the related processing according to the configuration of the DRX group. For example, when the base station configures one DRX group for the UE, the UE applies the above method to determine the size of the indication for the serving cells in the DRX group and the processing on the serving cells according to the indication, and when the base station configures two DRX groups for the UE, the UE determines the size of the indication in the related LP-WUS for the serving cells in the two DRX groups respectively and determines the processing on the serving cells according to the indication respectively. In a specific example, the base station configures two DRX groups for the UE; when some of the serving cells in the two DRX groups respectively use the indication in the LP-WUS to determine the related processing, and the indication in the LP-WUS is a 1-bit indication, there are two bits of the indication for the UE in the LP-WUS, corresponding to the indication information for the serving cells in the two DRX groups respectively; when only some of the serving cells in a DRX group use the indication in the LP-WUS to determine the related processing, and the indication in the LP-WUS is a 1-bit indication, there is 1 bit of the indication for the UE in the LP-WUS, corresponding to the indication information for the serving cells in the DRX group. When the indication in the LP-WUS is a bit bitmap or a codepoint, similar methods can be used to determine the indication information for the serving cells in the two DRX groups respectively.

[0244] Next, a user equipment which can perform the method described in detail above of the present disclosure will be described as an embodiment. Figure 4

[0245] Figure 4 is a block diagram representing a user equipment UE to which the present disclosure relates.

[0246] As shown in Figure 4 , the user equipment UE 400 includes a processor 401 and a memory 402. The processor 401 can include, for example, a microprocessor, a microcontroller, an embedded processor, etc. The memory 402 can include, for example, a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other storage, etc. The memory 402 stores program instructions thereon. The instructions, when executed by the processor 401, can perform the above-described method executed by the user equipment in detail of the present disclosure.

[0247] The method and the related devices of the present disclosure have been described above in connection with the preferred embodiments. It is understood by those skilled in the art that the method shown above is only exemplary, and the above-described embodiments can be combined with each other without contradiction. The method of the present disclosure is not limited to the steps and the order shown above. The network node and the user equipment shown above can include more modules, for example, modules which can be developed or will be developed in the future which can be used for the base station, the MME, or the UE, etc. The various identifiers shown above are only exemplary and not restrictive, and the present disclosure is not limited to the specific information elements as the examples of the identifiers. Many changes and modifications can be made by those skilled in the art according to the teachings of the embodiments shown above, for example, the present disclosure uses "1" and "0" to represent the relevant indication information, which can be exchanged with each other without contradiction, that is, using "0" to indicate the information indicated by "1" in the present disclosure, and using "1" to indicate the information indicated by "0" in the present disclosure. For another example, in the examples of the present disclosure, some serial numbers are arranged from small to large to correspond to the bit positions from MSB to LSB, which can also be arranged from large to small to correspond to the bit positions from MSB to LSB without contradiction. These changes do not affect the UE to determine the relevant process according to the relevant indication.

[0248] It should be understood that the above-described embodiments of the present disclosure can be realized by software, hardware, or a combination of software and hardware. For example, various components inside the base station and the user equipment in the above-described embodiments can be realized by various 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), etc.​

[0249] In the present disclosure, a "base station" can refer to a mobile communication data and control switching center having a large transmission power and a wide coverage area, including functions such as resource allocation scheduling, data reception and transmission, etc. A "user equipment" can refer to a user mobile user equipment, such as a mobile phone, a notebook, etc., which can perform wireless communication with a base station or a micro base station.

[0250] Furthermore, the embodiments of the present disclosure disclosed herein can be implemented on a computer program product. More specifically, the computer program product is a product having a computer readable medium having encoded thereon computer program logic, which, when executed on a computing device, provides the associated operations to implement the above technical solutions of the present 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 the present disclosure. Such a setup of the present disclosure is typically provided as software, code, and / or other data structures, or firmware or microcode, such as on a computer readable medium such as an optical medium (e.g., CD-ROM), floppy disk or hard disk, etc., or other media, such as one or more ROM or RAM or PROM chips, or as a downloadable software image, shared database, etc., in one or more modules of the software. 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 the present disclosure.

[0251] Furthermore, each functional module or each feature of the base station device and the user equipment used in each of the above embodiments can be implemented or performed by a circuit, which is typically one or more integrated circuits. The circuit designed to perform the respective functions described in this specification can include a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), or a general-use integrated circuit, a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, or a discrete hardware component, or any combination thereof. The general-purpose processor can be a microprocessor, or the processor can be a processor, a controller, a microcontroller, or a state machine. The above general-purpose processor or each circuit can be configured by a digital circuit, or can be configured by a logical circuit. Furthermore, when advanced technology capable of replacing the current integrated circuit appears due to the advancement of semiconductor technology, the present disclosure can also use an integrated circuit obtained using the advanced technology.

[0252] While the present disclosure has been shown and described in connection with the preferred embodiments, it will be readily apparent to those skilled in the art that various modifications, substitutions and changes can be made thereto without departing from the spirit and scope of the present disclosure. Accordingly, the present disclosure should be limited only by the scope of the appended claims and equivalents thereof.

Claims

1. A method performed by a user equipment (UE), comprising: determining a size of a bit map for the UE in a low power wake up signal (LP-WUS) ; determining a sequence number of each serving cell in the bit map; and for each serving cell, detecting an indication for the serving cell from the received LP-WUS according to the sequence number to determine whether to perform PDCCH detection in the serving cell. 2.The method of claim 1, wherein the size of the bit map is determined according to at least one of: a number of serving cells configured to be enabled for indication; a number of serving cells where BWP / CORESET / search space / PDCCH / PDSCH / PUSCH are configured to be enabled for indication; a number of serving cells indicated by the LP-WUS according to a bit map of serving cells; a number of serving cells indicated by the LP-WUS according to a list of serving cell sequence numbers; a number of serving cell groups indicated by the LP-WUS according to a list of serving cell group sequence numbers; and a maximum serving cell group sequence number indicated by the LP-WUS according to a list of serving cell group sequence numbers. 3.The method of claim 1, wherein the sequence number of each serving cell in the bit map is determined according to at least one of: a serving cell sequence number of a serving cell configured to be enabled for indication; a serving cell sequence number of a serving cell where BWP / CORESET are configured to be enabled for indication; a serving cell sequence number of a serving cell indicated by the LP-WUS according to a bit map of serving cells; a sequence number of a serving cell in a list of serving cell sequence numbers indicated by the LP-WUS; and a sequence number of a serving cell group indicated by the LP-WUS according to a list of serving cell group sequence numbers. 4.A method performed by a user equipment (UE), comprising: determining a serving cell to which an indication of one bit for the UE in a low power wake up signal (LP-WUS) is applied; and determining whether to perform PDCCH detection in the determined serving cell according to the one bit for the UE in the received LP-WUS. 5.The method of claim 4, wherein the serving cell to which the indication in the LP-WUS is applied is determined according to at least one of: a serving cell configured to be enabled for indication; a serving cell where BWP / CORESET / search space / PDCCH / PDSCH / PUSCH are configured to be enabled for indication; a serving cell indicated by the LP-WUS according to a bit map of serving cells; a serving cell indicated by the LP-WUS according to a list of serving cell sequence numbers; and a serving cell indicated by the LP-WUS according to a list of serving cell group sequence numbers. 6.A method performed by a user equipment (UE), comprising: determining a size of a bit occupied by a codepoint for the UE in a low power wake up signal (LP-WUS) ; determining a codepoint value of each serving cell; and for each serving cell, detecting an indication for the serving cell from the received LP-WUS according to the codepoint value to determine whether to perform PDCCH detection in the serving cell. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ For each serving cell, an indication for the serving cell is detected from the received LP-WUS according to the codepoint value to determine whether to perform PDCCH detection in the serving cell.

7. The method of claim 6, wherein, The size of the bit positions occupied by the codepoint is determined according to at least one of: - the number of serving cells with enabled identification configured; - the number of serving cells where BWP / CORESET / search space / PDCCH / PDSCH / PUSCH is located with enabled identification configured; - the number of serving cells indicated by the LP-WUS according to the bitmap of serving cells; - the number of serving cells indicated by the LP-WUS according to the list of serving cell indexes; - the number of groups of serving cells indicated by the LP-WUS according to the group indexes of serving cells; - the maximum group index of serving cells indicated by the LP-WUS according to the group indexes of serving cells; and - the number of different serving cell combinations.

8. The method of claim 6, wherein, The codepoint value corresponding to each serving cell is determined according to at least one of: - the serving cell index of the serving cell with enabled identification configured; - the serving cell index of the serving cell where BWP / CORESET is located with enabled identification configured; - the serving cell index of the serving cell indicated by the LP-WUS according to the bitmap of serving cells; - the index of the serving cell in the list of serving cell indexes indicated by the LP-WUS; and - the group index of the serving cell indicated by the LP-WUS according to the group indexes of serving cells.

9. A user equipment comprising: a processor; and a memory storing instructions, wherein the instructions, when executed by the processor, perform the method of any one of claims 1 to 8. ​ ​ ​

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