Communication method, user equipment and base station

Abstract

Provided in an embodiment of the present disclosure are a communication method, user equipment and base station, the method comprising: receiving first configuration information related to a wake-up signal, the first configuration information comprising N pieces of configuration information related to wake-up signal monitoring opportunities associated with the wake-up signal, N being determined based on the number of information bits of one wake-up signal; based on the first configuration information, receiving N wake-up signals transmitted in the N wake-up signal monitoring opportunities; determining whether to monitor a physical downlink control channel (PDCCH) based on first indication information indicated by the N wake-up signals; wherein the first indication information at least comprises at least one of the following information: whether a DRX continuous timer is started or not; the Scell is activated or deactivated; in the embodiment of the invention, the UE can monitor the wake-up signal and wake up the UE with extremely low power by triggering the first timer or the PDCCH to monitor the duration or not, so that the energy consumption of the UE is reduced, and the service life of a battery of the UE is further prolonged.

Description

Technical Field

[0001] This disclosure relates to the field of wireless communication technology, and more specifically, to a communication method, user equipment (UE), and base station. Background Technology

[0002] To meet the increased demand for wireless data communication services since the deployment of 4G communication systems, efforts have been made to develop improved 5G or near-5G communication systems. Therefore, 5G or near-5G communication systems are also referred to as "super 4G networks" or "post-LTE systems".

[0003] 5G communication systems are implemented in higher frequency (millimeter wave, mmWave) bands, such as the 60GHz band, to achieve higher data rates. To reduce radio wave propagation loss and increase transmission distance, beamforming, massive MIMO, full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, and massive MIMO technologies are discussed in 5G communication systems.

[0004] In addition, in 5G communication systems, development is underway to improve system networks based on advanced small cells, cloud radio access networks (RAN), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, cooperative multipoint (CoMP), and receiver interference cancellation.

[0005] In 5G systems, hybrid FSK and QAM modulation (FQAM) and sliding window superposition coding (SWSC) have been developed as advanced coding and modulation (ACM), while filter bank multicarrier (FBMC), non-orthogonal multiple access (NOMA) and sparse code multiple access (SCMA) have been developed as advanced access technologies. Summary of the Invention

[0006] The purpose of this disclosure is to solve the technical problem of how to reduce UE power consumption.

[0007] According to one aspect of the present disclosure, a method performed by a UE in a communication system is provided, the method comprising:

[0008] The first configuration information related to receiving the wake-up signal includes configuration information related to the listening timing of N wake-up signals associated with the wake-up signal, where N is determined based on the number of information bits of a wake-up signal;

[0009] Based on the first configuration information, receive N wake-up signals transmitted during N wake-up signal listening times;

[0010] Determine whether to monitor the Physical Downlink Control Channel (PDCCH) based on the first indication information indicated by N wake-up signals;

[0011] The first instruction information includes at least one of the following:

[0012] Enable or disable the DRX persistent timer;

[0013] Activate or deactivate the secondary cell (Scell);

[0014] Whether to trigger the first timer or the duration of PDCCH monitoring.

[0015] Optionally, the first configuration information also includes a first time interval, wherein the first time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals or the end position of the N wake-up signal listening time or the end position of the wake-up signal timing to the start of the DRX continuous timer.

[0016] Optionally, the first configuration information also includes a first offset, wherein the first offset is the offset from the starting position of the N wake-up signal listening times or the starting position of the first wake-up signal listening time among the N wake-up signal listening times to the start time of the DRX persistent timer.

[0017] Optionally, the first configuration information also includes a second time interval, wherein the second time interval is the time interval between the end position of the i-th wake-up signal listening time and the start position of the (i+1)-th wake-up signal listening time, and i is an integer from 1 to N-1.

[0018] Optionally, the method further includes: receiving second configuration information, wherein the second configuration information includes the number of secondary cells, and the number of information bits of the wake-up signal is determined based on the number of secondary cells.

[0019] Optionally, when the first indication information includes whether to enable the secondary cell DRX continuous timer, the N wake-up signals also include a second indication information, wherein the second indication information includes the UE's identification information;

[0020] When the UE identification information included in the second indication information is the same as the UE identification information, the primary cell DRX continuous timer is started.

[0021] Optionally, the first configuration information also includes a third time interval, wherein the third time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals to the start position of the first timer or the PDCCH listening duration.

[0022] or,

[0023] The third time interval is the time interval between the end position of the M wake-up signal listening timing used to determine the UE's identification information and the start position of the first timer or PDCCH listening duration, where M is an integer from 1 to N.

[0024] Optionally, the third time interval is determined based on the inter-carrier switching time and / or the inter-serving cell switching time.

[0025] Optionally, the inter-carrier switching time and / or inter-serving cell switching time are determined based on the minimum SCS of the PDCCH being listened to on multiple serving cells, or based on the minimum SCS of the PDCCH being listened to on serving cells other than the serving cell transmitting the wake-up signal.

[0026] Optionally, the first configuration information also includes a fourth time interval, wherein the fourth time interval is the time interval between the end position of the wake-up signal listening time when the first indication information is located and the start position of the start of the first timer or the PDCCH listening duration.

[0027] Optionally, the timing of the wake-up signal monitoring where the first indication information is located is determined based on the correlation between the secondary cell and the wake-up signal monitoring timing, as well as the position of the information bits where the first indication information is located.

[0028] Optionally, the wake-up signal includes a wake-up signal information bit block index.

[0029] Optionally, the number of information bits in a wake-up signal is determined by the number of bits occupied by the wake-up signal information bit block index and the number of secondary cells.

[0030] Optionally, the method further includes:

[0031] Receive third configuration information, wherein the third configuration information includes serving cells that support cross-carrier scheduling, and the number of information bits of the wake-up signal is determined based on the number of serving cells that support cross-carrier scheduling.

[0032] Optionally, the method further includes:

[0033] Receive RRC messages, which include configuration information related to the BWP outside the first activation time, the sleep BWP, and cross-carrier scheduling. The configuration information related to cross-carrier scheduling includes the index of the secondary cell being cross-carrier scheduled.

[0034] Based on the first indication information indicated by N wake-up signals and the index of the secondary cell scheduled across carriers, it is determined whether the downlink BWP in the secondary cell scheduled across carriers is a sleep BWP or a BWP outside the first activation time.

[0035] The first configuration information also includes configuration information related to the listening timing of N wake-up signals associated with the sleep indication information of the serving cell.

[0036] According to another aspect of the present disclosure, a method performed by a UE in a communication system is also provided, the method comprising:

[0037] Receive RRC messages, which include configuration information related to the BWP outside the first activation time, the sleep BWP, and cross-carrier scheduling. The configuration information related to cross-carrier scheduling includes the index of the secondary cell being cross-carrier scheduled.

[0038] The fourth configuration information related to receiving wake-up signals includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information, where N is determined based on the number of information bits of a wake-up signal;

[0039] Based on the fourth configuration information, receive N wake-up signals transmitted during N wake-up signal listening times;

[0040] Based on the serving cell sleep indication information indicated by N wake-up signals and the index of the secondary cell scheduled across carriers, the downlink BWP of the secondary cell scheduled across carriers is determined to be either a sleep BWP or a BWP outside the first activation time.

[0041] Optionally, the RRC message may also include the number of serving cell sleep groups; the number of information bits in the serving cell sleep indication information is determined based on the number of serving cell sleep groups.

[0042] According to another aspect of the present disclosure, a method performed by a UE in a communication system is also provided, the method comprising:

[0043] On a secondary cell that is being scheduled across carriers, if a PDSCH scheduled by the primary cell or other secondary cells is received, a sleep timer is started after the fifth time interval at the end of the PDSCH.

[0044] When the sleep timer expires, the active downlink BWP will be switched to the sleep BWP.

[0045] Optionally, the method further includes:

[0046] If the next scheduled PDSCH is received during the sleep timer's operation, the sleep timer is restarted.

[0047] According to another aspect of the present disclosure, a method performed by a base station in a communication system is provided, the method comprising:

[0048] Sending wake-up signal-related first configuration information, the first configuration information includes configuration information related to the listening timing of N wake-up signals associated with the wake-up signal, where N is determined based on the number of information bits of a wake-up signal;

[0049] Based on the first configuration information, the j-th wake-up signal is transmitted during the j-th wake-up signal listening time, where j is an integer from 1 to N;

[0050] The first instruction information includes at least one of the following:

[0051] Enable or disable the DRX persistent timer;

[0052] Activate or deactivate the secondary cell (Scell);

[0053] Whether to trigger the first timer or the duration of PDCCH monitoring.

[0054] According to another aspect of the present disclosure, a method performed by a base station in a communication system is also provided, the method comprising:

[0055] Send an RRC message, which includes configuration information related to the BWP outside the first activation time, the sleep BWP, and cross-carrier scheduling. The configuration information related to cross-carrier scheduling includes the index of the secondary cell being cross-carrier scheduled.

[0056] The fourth configuration information related to sending wake-up signals includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information, where N is determined based on the number of information bits of a wake-up signal;

[0057] Based on the fourth configuration information, the j-th wake-up signal is transmitted during the j-th wake-up signal listening time, where j is an integer from 1 to N;

[0058] Among them, the serving cell sleep indication information indicated by N wake-up signals and the index of the secondary cell scheduled across carriers are used to determine the downlink BWP of the secondary cell scheduled across carriers.

[0059] According to another aspect of the present disclosure, a user equipment is provided, the user equipment comprising:

[0060] transceiver, and

[0061] A processor, coupled to a transceiver and configured to perform methods executed by a UE in a communication system provided in embodiments of this disclosure.

[0062] According to another aspect of the present disclosure, a base station is provided, the base station comprising:

[0063] transceiver, and

[0064] The processor is coupled to the transceiver and configured to perform methods executed by the base station in the communication system provided in embodiments of this disclosure.

[0065] According to another aspect of the present disclosure, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a processor, implements a method performed by a UE or a base station in the communication system provided in the present disclosure.

[0066] According to another aspect of the present disclosure, a computer program product is provided, including a computer program that, when executed by a processor, implements a method performed by a UE or a base station in a communication system provided in the present disclosure.

[0067] The communication method, user equipment, and base station provided in this disclosure allow the UE to receive first configuration information related to a wake-up signal. This first configuration information includes configuration information related to N wake-up signal listening times associated with the wake-up signal, where N is determined based on the number of information bits in a wake-up signal. Based on the first configuration information, the UE receives N wake-up signals transmitted during the N wake-up signal listening times. Based on first indication information indicated by the N wake-up signals, the UE determines whether to listen to the PDCCH. The first indication information includes at least one of the following: whether to enable the DRX continuous timer; whether to activate or deactivate the Scell; and whether to trigger the first timer or the PDCCH listening duration. This allows the UE to listen to wake-up signals and wake up with extremely low power, thereby reducing the UE's energy consumption and further extending its battery life. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below.

[0069] Figure 1 A schematic diagram of the overall structure of the wireless network provided in this embodiment of the disclosure;

[0070] Figure 2a A schematic diagram of the transmission path provided in an embodiment of this disclosure;

[0071] Figure 2b A schematic diagram of the receiving path provided in the embodiments of this disclosure;

[0072] Figure 3a This is a schematic diagram of the structure of a UE provided in an embodiment of this disclosure;

[0073] Figure 3b This is a schematic diagram of the structure of a base station provided in an embodiment of this disclosure;

[0074] Figure 4A flowchart illustrating a method executed by a UE according to an embodiment of this disclosure;

[0075] Figure 5 A schematic diagram illustrating the monitoring of N wake-up signals MO provided in an embodiment of this disclosure;

[0076] Figure 6 A schematic diagram illustrating MO (Motion Detection) wake-up signal monitoring in the same beam direction provided in an embodiment of this disclosure;

[0077] Figure 7 A schematic diagram illustrating discontinuous wake-up signal (MO) monitoring provided in an embodiment of this disclosure;

[0078] Figure 8 A schematic diagram illustrating the monitoring of wake-up signals in each serving cell according to embodiments of this disclosure;

[0079] Figure 9 A schematic diagram illustrating cross-carrier scheduling wake-up signal monitoring provided in an embodiment of this disclosure;

[0080] Figure 10a A flowchart illustrating another method executed by a UE as provided in an embodiment of this disclosure;

[0081] Figure 10b A flowchart illustrating yet another method executed by a UE, provided as an embodiment of this disclosure;

[0082] Figure 11 This is a schematic diagram illustrating a PDCCH monitoring process triggered by a wake-up signal when carrier aggregation is configured, as provided in an embodiment of this disclosure.

[0083] Figure 12 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this disclosure. Detailed Implementation

[0084] The following description, with reference to the accompanying drawings, is provided to aid in a thorough understanding of the various embodiments of this disclosure as defined by the claims and their equivalents. This description includes various specific details to aid understanding but should be considered exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of this disclosure. Furthermore, for clarity and brevity, descriptions of well-known functions and structures may be omitted.

[0085] The terms and wording used in the following description and claims are not limited to their dictionary meanings, but are merely used by the inventors to enable a clear and consistent understanding of this disclosure. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this disclosure is for illustrative purposes only and not for limiting the purpose of this disclosure as defined in the appended claims and their equivalents.

[0086] It should be understood that the singular forms of “one,” “an,” and “the” include plural references unless the context clearly indicates otherwise. Thus, for example, the reference to “component surface” includes one or more such surfaces.

[0087] The terms “comprising” or “may include” refer to the presence of a corresponding disclosed function, operation, or component that may be used in the various embodiments of this disclosure, rather than limiting the presence of one or more additional functions, operations, or features. Furthermore, the terms “comprising” or “having” may be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof, but should not be construed as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components, or combinations thereof.

[0088] The term "or" as used in the various embodiments of this disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0089] Unless otherwise defined, all terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by those skilled in the art. Common terms as defined in dictionaries are to be interpreted as having a meaning consistent with the context in the relevant technical field and should not be interpreted ideally or overly formally, unless expressly defined in this disclosure.

[0090] The various embodiments of this disclosure can be applied to various communication systems, such as: Global System for Mobile Communications (GSM) systems, Code Division Multiple Access (CDMA) systems, Wideband Code Division Multiple Access (WCDMA) systems, General Packet Radio Service (GPRS), Long Term Evolution (LTE) systems, Frequency Division Duplex (FDD) systems, Time Division Duplex (TDD) systems, Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication systems, 5th Generation (5G) systems, or New Radio (NR) systems, etc. Furthermore, the various embodiments of this disclosure can be applied to future-oriented communication technologies.

[0091] Figure 1 An example wireless network 100 according to various embodiments of the present disclosure is shown. Figure 1 The embodiment of the wireless network 100 shown is for illustrative purposes only. Other embodiments of the wireless network 100 can be used without departing from the scope of this disclosure.

[0092] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130 (such as the Internet, a proprietary IP network, or other data network).

[0093] Depending on the network type, other well-known terms such as "base station (BS)" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals. Furthermore, depending on the network type, other well-known terms such as "mobile station", "user station", "remote terminal", "wireless terminal", or "user device" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a fixed device as commonly understood (such as a desktop computer or vending machine).

[0094] gNB 102 provides wireless broadband access to network 130 to multiple first user equipments (UEs) within its coverage area 120. The multiple first UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); and UE 116, which may be a mobile device (M), such as a cellular phone, wireless laptop computer, wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 to multiple second UEs within its coverage area 125. The multiple second UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 are capable of communicating with each other and with UEs 111-116 using 5G, LTE, LTE-A, WiMAX, or other advanced wireless communication technologies.

[0095] The dashed lines indicate the approximate extent of coverage areas 120 and 125, which are shown as approximately circular for illustrative and explanatory purposes only. It should be clearly understood that coverage areas associated with the gNB, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0096] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of this disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and architecture for systems having 2D antenna arrays.

[0097] although Figure 1 An example of a wireless network 100 is shown, but it is possible to... Figure 1 Various modifications can be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Furthermore, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks (such as external telephone networks or other types of data networks).

[0098] Figure 2a and Figure 2b Example wireless transmit and receive paths according to this disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102), while receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB, and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system having a 2D antenna array as described in embodiments of this disclosure.

[0099] The transmit path 200 includes a channel coding and modulation block 205, a serial-to-parallel (S-to-P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel-to-serial (P-to-S) block 220, a cyclic prefix addition block 225, and an up-converter (UC) 230. The receive path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a serial-to-parallel (S-to-P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel-to-serial (P-to-S) block 275, and a channel decoding and demodulation block 280.

[0100] In transmit path 200, channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity-check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulated symbols. Serial-to-parallel (S-to-P) block 210 converts (e.g., demultiplexes) the serial modulated symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in gNB 102 and UE 116. N-point IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal. Parallel-to-serial block 220 converts (e.g., multiplexes) the parallel time-domain output symbols from N-point IFFT block 215 to generate a serial time-domain signal. Cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal. Upconverter 230 modulates (e.g., upconverts) the output of the added cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at the baseband before being converted to the RF frequency.

[0101] The RF signal transmitted from gNB 102 reaches UE 116 after passing through the wireless channel, and UE 116 performs the opposite operation to that at gNB 102. Downconverter 255 downconverts the received signal to the baseband frequency, and cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0102] Each of gNBs 101-103 can implement a transmission path 200 similar to that used for transmission to UEs 111-116 in the downlink, and a reception path 250 similar to that used for reception from UEs 111-116 in the uplink. Similarly, each of UEs 111-116 can implement a transmission path 200 for transmission to gNBs 101-103 in the uplink, and a reception path 250 for reception from gNBs 101-103 in the downlink.

[0103] Figure 2a and Figure 2b Each of the components can be implemented using only hardware, or using a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2bAt least some of the components can be implemented in software, while others can be implemented in configurable hardware or a combination of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as configurable software algorithms, wherein the value of the number of points N can be modified according to the implementation method.

[0104] Furthermore, although the description uses FFT and IFFT, this is merely illustrative and should not be construed as limiting the scope of this disclosure. Other types of transforms, such as the Discrete Fourier Transform (DFT) and Inverse Discrete Fourier Transform (IDFT) functions, can be used. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer that is a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0105] although Figure 2a and Figure 2b An example of a wireless transmit and receive path is shown, but it is possible to modify it further. Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. Furthermore, Figure 2a and Figure 2b This is intended to illustrate examples of the types of send and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communication in a wireless network.

[0106] Figure 3a Example UE 116 according to this disclosure is shown. Figure 3a The embodiment of UE 116 shown is for illustrative purposes only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a wide variety of configurations, and Figure 3a This disclosure is not intended to limit the scope of any particular implementation of the UE.

[0107] UE 116 includes an antenna 301, a radio frequency (RF) transceiver 302, a transmit (TX) processing circuitry 303, a microphone 304, and a receive (RX) processing circuitry 305. UE 116 also includes a speaker 306, a controller / processor 307, an input / output (I / O) interface (IF) 308, multiple input devices 309, a display 310, and a memory 311. The memory 311 includes an operating system (OS) 312 and one or more applications 313.

[0108] RF transceiver 302 receives incoming RF signals transmitted by a gNB of wireless network 100 from antenna 301. RF transceiver 302 down-converts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to RX processing circuitry 305, which generates a processed baseband signal by filtering, decoding, and / or digitizing the baseband or IF signal. RX processing circuitry 305 sends the processed baseband signal to speaker 306 (e.g., for voice data) or to controller / processor 307 (e.g., for web browsing data) for further processing.

[0109] TX processing circuitry 303 receives analog or digital voice data from microphone 304, or other outgoing baseband data (such as network data, email, or interactive video game data) from controller / processor 307. TX processing circuitry 303 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate processed baseband or IF signals. RF transceiver 302 receives the processed outgoing baseband or IF signals from TX processing circuitry 303 and up-converts the baseband or IF signals into RF signals transmitted via antenna 301.

[0110] The controller / processor 307 may include one or more processors or other processing devices and execute an OS 312 stored in memory 311 to control the overall operation of the UE 116. For example, the controller / processor 307 may control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 302, the RX processing circuit 305, and the TX processing circuit 303 according to known principles. In some embodiments, the controller / processor 307 includes at least one microprocessor or microcontroller.

[0111] The controller / processor 307 is also capable of executing other processes and programs residing in the memory 311, such as operations for channel quality measurement and reporting for a system having a 2D antenna array as described in the embodiments of this disclosure. The controller / processor 307 is capable of moving data into or out of the memory 311 as needed for the execution of the process. In some embodiments, the controller / processor 307 is configured to execute an application 313 based on the OS 312 or in response to signals received from a gNB or operator. The controller / processor 307 is also coupled to an I / O interface 308, which provides the UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. The I / O interface 308 is the communication path between these accessories and the controller / processor 307.

[0112] The controller / processor 307 is also coupled to input devices(s) 309 and a display 310. An operator of the UE 116 can use the input devices(s) 309 to input data into the UE 116. The display 310 may be a liquid crystal display or another display capable of displaying text and / or at least limited graphics (such as from a website). Memory 311 is coupled to the controller / processor 307. A portion of memory 311 may include random access memory (RAM), while another portion of memory 311 may include flash memory or other read-only memory (ROM).

[0113] although Figure 3a An example of UE 116 is shown, but it is possible to... Figure 3a Make various changes. For example, Figure 3a The various components can be combined, further subdivided, or omitted, and additional components can be added as needed. As a specific example, the controller / processor 307 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Furthermore, although... Figure 3a The UE116 is shown configured as a mobile phone or smartphone, but the UE can be configured to operate as other types of mobile or fixed devices.

[0114] Figure 3b An example gNB 102 according to this disclosure is shown. Figure 3b The embodiment of gNB 102 shown is for illustrative purposes only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a wide variety of configurations, and Figure 3b The scope of this disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structures as gNB 102.

[0115] like Figure 3b As shown, gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0116] RF transceivers 372a-372n receive incoming RF signals, such as signals transmitted by the UE or other gNBs, from antennas 370a-370n. RF transceivers 372a-372n down-convert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. RX processing circuitry 376 sends the processed baseband signals to controller / processor 378 for further processing.

[0117] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. RF transceivers 372a-372n receive the outgoing processed baseband or IF signal from the TX processing circuit 374 and up-convert the baseband or IF signal into an RF signal transmitted via antennas 370a-370n.

[0118] The controller / processor 378 may include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 may control the reception of forward channel signals and the transmission of reverse channel signals via RF transceivers 372a-372n, RX processing circuitry 376, and TX processing circuitry 374, according to known principles. The controller / processor 378 may also support additional functions, such as more advanced wireless communication functions. For example, the controller / processor 378 may perform a BIS process, such as by a blind interference sensing (BIS) algorithm, and decode the received signal after subtracting interference. The controller / processor 378 may support any of a wide variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0119] The controller / processor 378 is also capable of executing programs and other processes, such as a basic operating system, residing in the memory 380. The controller / processor 378 is also capable of supporting channel quality measurement and reporting for systems having 2D antenna arrays as described in embodiments of this disclosure. In some embodiments, the controller / processor 378 supports communication between entities such as web RTCs. The controller / processor 378 is capable of moving data into or out of the memory 380 as needed for the execution of processes.

[0120] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or over a network. The backhaul or network interface 382 is capable of supporting communication via any suitable wired or wireless connection(s). For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technologies or NR, LTE, or LTE-A), the backhaul or network interface 382 allows the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 allows the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable architecture supporting communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0121] Memory 380 is coupled to controller / processor 378. A portion of memory 380 may include RAM, while another portion may include flash memory or other ROM. In some embodiments, multiple instructions, such as a BIS algorithm, are stored in memory. The multiple instructions are configured to cause controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0122] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using RF transceivers 372a-372n, TX processing circuitry 374, and / or RX processing circuitry 376) support aggregated communication with FDD and TDD cells.

[0123] although Figure 3b An example of gNB 102 is shown, but it is possible to compare it with other models. Figure 3b Various modifications can be made. For example, gNB102 can include any number of... Figure 3a Each component shown. As a specific example, an access point can include multiple backhaul or network interfaces 382, ​​and a controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, although shown as a single instance including TX processing circuitry 374 and a single instance including RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0124] In the embodiments of this disclosure, the time-domain unit (also called a time unit) can be: an OFDM (Orthogonal Frequency Division Multiplexing) symbol, an OFDM symbol group (composed of multiple OFDM symbols), a slot, a slot group (composed of multiple slots), a subframe, a subframe group (composed of multiple subframes), a system frame, or a system frame group (composed of multiple system frames); it can also be an absolute time unit, such as 1 millisecond, 1 second, etc.; the time unit can also be a combination of multiple granularities, such as N1 slots plus N2 OFDM symbols, etc. It can also be the duration of an OOK (On-Off Keying) chip.

[0125] In the embodiments of this disclosure, the frequency domain unit (also called the frequency unit) can be: a subcarrier, a subcarrier group (composed of multiple subcarriers), a resource block (RB), also called a physical resource block (PRB), a resource block group (composed of multiple RBs), a bandwidth part (BWP), a bandwidth part group (composed of multiple BWPs), a frequency band / carrier, a frequency band group / carrier group; it can also be an absolute frequency domain unit, such as 1 Hz, 1 kHz, etc.; the frequency domain unit can also be a combination of multiple granularities, such as M1 PRBs plus M2 subcarriers, etc.

[0126] The transmission links of a wireless communication system mainly include: the downlink communication link from the 5G New Radio (NR) gNB to the User Equipment (UE), the uplink communication link from the UE to the network, and the sidelink communication link from the UE to the UE.

[0127] For example, in current wireless communication systems, in order to reduce energy consumption on the terminal side, the UE can listen for wake-up signals based on the PDCCH (Physical Downlink Control Channel) listening timing configured by RRC (Radio Resource Control). For example, if the UE detects a PDCCH carrying PS-RNTI (Power Saving Radio Network Tempory Identity) during the configured PDCCH listening timing, the UE further reads the DCI message and, based on the RRC configuration and the wake-up signal indication, determines whether to enable drx-onDurationTimer and listen for PDCCH during the associated DRX (Discontinuous Reception) period.

[0128] In some use cases with more stringent requirements for low power consumption of the UE (such as IoT devices and / or wearable devices), in order to further extend the battery life of the UE and reduce the power consumption on the terminal side, embodiments of this disclosure propose a scheme for an enhanced wake-up signal.

[0129] Exemplary embodiments of this disclosure are further described below with reference to the accompanying drawings.

[0130] The text and accompanying drawings are provided by way of example only to aid the reader in understanding this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes may be made to the illustrated embodiments and examples without departing from the scope of this disclosure.

[0131] This disclosure provides a method executed by a UE in a communication system, such as... Figure 4 As shown, the method includes:

[0132] Step S101: Receive first configuration information related to the wake-up signal. The first configuration information includes configuration information related to the listening timing of N wake-up signals associated with the wake-up signal, where N is determined based on the number of information bits of the wake-up signal.

[0133] In this embodiment of the disclosure, a wake-up signal refers to a signal with extremely low power consumption that can wake up the UE. For example, a wake-up signal includes, but is not limited to, an LPWUS signal. The wake-up signal may also be called by other names. This embodiment of the disclosure uses a wake-up signal for illustrative purposes. The method described can also be used for the configuration and transmission of other signals.

[0134] Optionally, the UE's receiver includes two modules: a main radio (MR) module for receiving regular signals / channels transmitted by the base station, and a low-power wake-up signal (LPWUR) receiver module for receiving wake-up signals transmitted by the base station. The reason for using a dedicated module to receive wake-up signals may include: LPWUR is a waveform based on amplitude shift keying (ASK) modulation, building upon the existing OFDM waveform used in NR systems. OOK modulation is a special case of ASK modulation.

[0135] In the embodiments of this disclosure, the configuration of the wake-up signal (such as first configuration information) can be determined when carrier aggregation is configured, such as the time domain location of LPWUS listening and the method for LPWUS to trigger search space listening, etc.

[0136] Optionally, the UE can obtain carrier aggregation configuration information, DRX configuration information, and first configuration information related to the wake-up signal through RRC messages.

[0137] In this embodiment of the disclosure, the UE can listen for wake-up signals within one or N consecutive wake-up signal listening opportunities or within N non-consecutive wake-up signal listening opportunities. The information bits of the N wake-up signals transmitted within the N consecutive wake-up signal listening opportunities or the N non-consecutive wake-up signal listening opportunities can be different.

[0138] Step S102: Based on the first configuration information, receive N wake-up signals transmitted during the N wake-up signal listening times.

[0139] In this embodiment of the disclosure, the UE can listen for the wake-up signal with extremely low power. Once the UE listens for the wake-up signal, it can execute step S103.

[0140] Step S103: Determine whether to listen to the PDCCH based on the first indication information indicated by N wake-up signals.

[0141] In this embodiment of the disclosure, the first indication information includes at least one of the following:

[0142] (1) Whether to enable the DRX persistent timer;

[0143] For example, a 1-bit indication is used to indicate whether to enable the DRX-OndurationTimer to perform PDCCH listening. If the indication value is 1, the UE triggers or enables the DRX-OndurationTimer associated with the wake-up signal and listens for the PDCCH within the DRX-OndurationTimer. If the indication value is 0, the UE does not enable the DRX-OndurationTimer associated with the wake-up signal, or the UE does not expect to listen for the PDCCH.

[0144] (2) Activate or deactivate Scell;

[0145] This can also be referred to as Scell ​​activation / deactivation indication information. This indication information can be a fixed 31-bit bitmap, corresponding one-to-one with the configured Scell ​​indices from smallest to largest. For example, the smallest Scell ​​index corresponds to the high-order bits of the bitmap, and the largest Scell ​​index corresponds to the low-order bits. When the value of the bitmap corresponding to the Scell ​​index is 0, if the RRC has configured that Scell, it indicates deactivation of the Scell; if the RRC has not configured that Scell, it indicates no change in the activation state or that the Scell ​​has not been configured. When the value of the bitmap corresponding to the Scell ​​index is 1, it indicates activation of the Scell. This method ensures that the length of the wake-up signal does not change when the configured Scell ​​changes.

[0146] Alternatively, the Scell ​​activation / deactivation indication information can correspond one-to-one with the Scell ​​indices configured in the RRC, from smallest to largest. The length or number of Scell ​​activation / deactivation indication information is the same as the number of Scells configured in the RRC. The smallest Scell ​​index corresponds to the high-order bits of the bitmap, and the largest Scell ​​index corresponds to the low-order bits. When the value of the bitmap corresponding to the Scell ​​index is 0, it indicates that the Scell ​​is deactivated; when the value of the bitmap corresponding to the Scell ​​index is 1, it indicates that the Scell ​​is activated. This method can reduce resource and signaling overhead as well as reception latency. The UE listens to the PDCCH on the Pcell and the activated Scell.

[0147] (3) Trigger the first timer or PDCCH listening duration.

[0148] For example, information indicating whether Scell ​​triggers or does not trigger the first timer or the duration of PDCCH listening.

[0149] The indication information for whether the Scell ​​triggers / does not trigger the first timer or the PDCCH listening duration can be a fixed 31-bit bitmap, corresponding one-to-one with the configured Scell ​​indices from smallest to largest. For example, the smallest Scell ​​index corresponds to the high-order bits of the bitmap, and the largest Scell ​​index corresponds to the low-order bits. When the value of the bitmap corresponding to the Scell ​​index is 0, it indicates that the first timer or PDCCH listening duration of that Scell ​​is not triggered; when the value of the bitmap corresponding to the Scell ​​index is 1, it indicates that the first timer or PDCCH listening duration of that Scell ​​is triggered. This method ensures that the length of the wake-up signal does not change when the configured Scell ​​changes.

[0150] Alternatively, the indication information for whether the Scell ​​triggers / does not trigger the first timer or the PDCCH listening duration can correspond one-to-one with the Scell ​​indices configured by the RRC from smallest to largest. The length or number of indication information for whether the Scell ​​triggers / does not trigger the first timer or the PDCCH listening duration is the same as the number of Scells configured by the RRC. The smallest Scell ​​index corresponds to the high-order bits of the bitmap, and the largest Scell ​​index corresponds to the low-order bits. When the value of the bitmap corresponding to the Scell ​​index is 0, it indicates that the first timer or PDCCH listening duration of that Scell ​​is not triggered; when the value of the bitmap corresponding to the Scell ​​index is 1, it indicates that the first timer or PDCCH listening duration of that Scell ​​is triggered. This method can reduce resource and signaling overhead and reception latency. The UE listens for the PDCCH on the Pcell and the active Scell.

[0151] For example, a 1-bit indication information is used to indicate whether to start the first timer or the PDCCH listening duration to perform PDCCH listening. If the indication information value is 1, the UE triggers or starts the first timer or PDCCH listening duration associated with the wake-up signal, and listens for the PDCCH within the first timer or PDCCH listening duration. If the indication information value is 0, the UE does not trigger the first timer or PDCCH listening duration associated with the wake-up signal, or the UE does not expect to listen to the PDCCH.

[0152] In other words, a wake-up signal can instruct the UE to transition from sleep to active status, such as triggering a transition from sleep to active status in the MR (Mobile Registry). For example, a wake-up signal can instruct the UE to enable drx-onDurationTimer, triggering PDCCH listening in the Pcell and simultaneously triggering PDCCH listening in the Scell. Alternatively, a wake-up signal can indicate the active or deactivated state of the Scell. Or, a wake-up signal can instruct the UE to directly perform PDCCH listening for a certain period, such as triggering the first timer or the PDCCH listening duration.

[0153] The method executed by the UE provided in this embodiment enables the UE to listen for and wake up the wake-up signal with extremely low power, thereby reducing the UE's power consumption.

[0154] In this embodiment of the disclosure, the configuration information related to the wake-up signal monitoring occupancy (MO) associated with the wake-up signal includes at least one of the following parameters: the wake-up signal occupancy and / or the offset of the wake-up signal monitoring occupancy (e.g., a first offset of the wake-up signal monitoring occupancy relative to the DRX duration timer and / or a second offset of the wake-up signal occupancy relative to the DRX duration timer), a first time interval (e.g., a minimum time interval) from the end position of receiving the wake-up signal to the start of the drx-onDurationTimer, the interval between two wake-up signals MO (e.g., a second time interval), the duration of the wake-up signal occupancy and / or the wake-up signal MO, the number of wake-up signals MO, the period of the wake-up signal occupancy and / or the wake-up signal MO, a third time interval (e.g., a minimum time interval) from the end position of receiving the wake-up signal to the start of the first timer or the PDCCH monitoring duration, the start position of the wake-up signal occupancy and / or the wake-up signal MO, and the duration of the first timer or the PDCCH monitoring duration. The wake-up signal occupancy associated with the wake-up signal may include at least one wake-up signal monitoring occupancy.

[0155] In one optional implementation, the first configuration information further includes a first time interval, wherein the first time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals or the end position of the listening time of the N wake-up signals to the start of the DRX continuous timer. For example, the UE can determine the time domain end position of the last wake-up signal MO among at least one wake-up signal MO on the Pcell by configuring the first time interval and the start time of drx-onDurationTimer.

[0156] In one optional implementation, the first configuration information further includes a first time interval, wherein the first time interval is the time interval from the end position of the wake-up signal timing to the start of the DRX continuous timer. The UE determines the time domain end position of the wake-up signal timing on the Pcell by using the configured first time interval and the start time of drx-onDurationTimer.

[0157] In this embodiment of the disclosure, the first time interval includes at least one of the following: wake-up signal processing time, MR conversion time, MR time-frequency synchronization time, or the time of HARQ (Hybrid Automatic Repeat Request) ACK (ACKknowledge Character) feedback of the MR wake-up state.

[0158] In one optional implementation, the first configuration information further includes a first offset, wherein the first offset is an offset from the starting position of the N wake-up signal listening times or the starting position of the first wake-up signal listening time among the N wake-up signal listening times to the start time of the DRX persistence timer. For example, the UE can determine the time-domain starting position of the first wake-up signal MO among at least one wake-up signal MO on the Pcell by configuring the first offset and the start time of drx-onDurationTimer.

[0159] In one optional implementation, the first configuration information further includes a second offset, wherein the second offset is an offset from the start position of the wake-up signal timing to the start time of the DRX duration timer. For example, the UE can determine the time-domain start position of the wake-up signal timing on the Pcell by configuring the second offset and the start time of drx-onDurationTimer.

[0160] In an optional implementation, if multiple wake-up signals MO are configured, the first configuration information further includes a second time interval, wherein the second time interval is the time interval between the end position of the i-th wake-up signal listening time and the start position of the (i+1)-th wake-up signal listening time, where i is an integer from 1 to N-1. In other words, the start position of each wake-up signal listening time starting from the second wake-up signal listening time is determined based on the end position of the previous wake-up signal listening time and the second time interval. For example, the start point of the next wake-up signal MO can be determined by the end point of the previous wake-up signal MO and the interval between the two wake-up signals MO.

[0161] In one alternative implementation, the period for listening to the wake-up signal and / or the period for the wake-up signal timing are determined based on the DRX period. For example, the period for the wake-up signal timing and / or the wake-up signal MO is equal to the configured DRX period. In this case, the period for the wake-up signal timing and / or the wake-up signal MO does not need to be explicitly configured.

[0162] In this embodiment of the disclosure, the first configuration information further includes a third time interval, wherein the third time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals to the start position of starting the first timer or PDCCH listening duration; or, the third time interval is the time interval from the end position of the M wake-up signal listening opportunities used to determine the UE's identification information to the start position of starting the first timer or PDCCH listening duration, wherein M is an integer from 1 to N. Optionally, the second and third time intervals are determined based on the inter-carrier transition time and / or the inter-serving cell transition time. For example, the third time interval includes at least one of the wake-up signal processing time, MR transition time, or MR time-frequency synchronization time. In addition, the third time interval may also include the inter-carrier transition time, and / or the inter-serving cell transition time, and / or the HARQ ACK feedback time of the MR wake-up state. For example, when at least one wake-up signal listening opportunity is configured on a Pcell, if the wake-up signal indicates that the first timer or PDCCH listening duration is triggered or started on one or more configured Scells, the third time interval may include the transition time from the Pcell to one or more configured Scells. For example, when at least one wake-up signal listening time is configured on an Scell, if the wake-up signal indicates that a first timer or PDCCH listening duration is triggered or started on one or more configured Scells, the third time interval should include the transition time from the Scell ​​receiving the wake-up signal to one or more configured Scells.

[0163] The inter-carrier switching time and / or inter-serving cell switching time are determined based on the SCS (Sub-Carrier Spacing) of the PDCCH configured on at least one serving cell, for example, related to the SCS of the PDCCH signals configured on one or more configured Scells.

[0164] Optionally, the inter-carrier handover time and / or inter-serving cell handover time are determined based on the minimum SCS of the PDCCH monitored on multiple serving cells, or based on the minimum SCS of the PDCCH monitored on serving cells other than the serving cell transmitting the wake-up signal. For example, it can be determined based on the minimum of the PDCCH signals on multiple configured Scells. Another example is that when at least one wake-up signal monitoring opportunity is configured on a Pcell, the minimum SCS can be the minimum SCS other than the SCS of the Pcell. Yet another example is that when at least one wake-up signal monitoring opportunity is configured on an Scell, the minimum SCS can be the minimum SCS other than the SCS of that Scell.

[0165] Optionally, the granularity of the third time interval can be a time slot or a subframe.

[0166] In this embodiment of the disclosure, during the third time interval, the UE does not expect to receive any downlink signals other than the SSB (Synchronization Signal Block) and / or wake-up signals and / or send any uplink signals other than the HARQ ACK feedback indication of the MR wake-up state.

[0167] In this embodiment of the disclosure, an optional implementation method is provided for the transmission of wake-up signals. Specifically, N wake-up signals can also be referred to as N wake-up signal information bit blocks (or signal blocks). The UE receives the wake-up signal information bit blocks transmitted in multiple wake-up signals MO and assembles them into a whole wake-up signal information bit.

[0168] In one example, the wake-up signal functions to trigger the activation or deactivation of the DRX-OndurationTimer on all aggregated carriers and / or the configured secondary cell. The UE expects to listen to the PDCCH on the activated secondary cell and within the triggered DRX-OndurationTimer. Due to the limited number of bits in the wake-up signal, multiple wake-up signal sequences can be used to carry the information bits of the complete wake-up signal to ensure that the wake-up signal can achieve this function.

[0169] For example, multiple LPWUS MOs configured on a Pcell can be used to send different LPWUS signal blocks of a single LPWUS, enabling DRX-ondurationTimer to perform cross-carrier PDCCH listening.

[0170] In one optional implementation, N wake-up signals MO can be used to transmit the complete information bits of the wake-up signal. The UE listens to the N wake-up signals MO to obtain the complete information bits of the wake-up signal. Each wake-up signal MO transmits a partial information bit block of the wake-up signal. The UE listens to each of the N wake-up signals MO to obtain a partial information bit block of the wake-up signal. By receiving the partial information bit blocks of the N different wake-up signals transmitted in the N wake-up signals MO, the UE obtains the complete wake-up signal bit information.

[0171] As an example, such as Figure 5As shown, a complete set of wake-up signal bit information is obtained by transmitting wake-up signal information bit blocks in N wake-up signals MO. After the first time interval at the end position of the last wake-up signal MO, the DRX continuous timer is started based on the wake-up signal bit information so that Pcell and Scell-2 can listen to PDCCH. The PDCCH listened to on Pcell can schedule the PDSCH (Physical Downlink Shared Channel) of Pcell and Scell-1, and the PDCCH listened to on Scell-2 can schedule the PDSCH of Scell-2.

[0172] In one optional implementation, multiple wake-up signal listening opportunities include multiple consecutive wake-up signal listening opportunities in the same beam direction. For example, N wake-up signals MO can be N consecutive wake-up signals MO. The UE listens to N consecutive wake-up signals MO in the same beam direction and receives N partial information bit blocks of the same wake-up signal. Optionally, the UE or UE group expects to listen to N associated wake-up signals MO in the same beam direction to obtain all information bits of the wake-up signal.

[0173] As an example, such as Figure 6 As shown, the UE listens to the wake-up signal information bit blocks transmitted in the N consecutive wake-up signals MO associated with beam direction #1, obtains the complete wake-up signal bit information, and starts the DRX continuous timer based on the wake-up signal bit information.

[0174] Optionally, the wake-up signal transmitted by different wake-up signals MO may contain different information bit blocks.

[0175] In this embodiment, the same beam direction can be determined based on the beam receiving the SSB and the QCL (Quasi Co-located) relationship between the configured SSB and the wake-up signal. This scheme is applicable when the wake-up signal and the SSB have a QCL relationship. In this case, the UE can determine the downlink receiving beam used by the UE through the QCL relationship. The UE can use the determined downlink receiving beam to receive the wake-up signal on N consecutive configured wake-up signals (MOs) without needing to perform beam scanning of all beams. If the QCL relationship between the SSB and the wake-up signal is that the beam direction of one SSB and the beam directions of multiple wake-up signals have a quasi-co-located relationship, the same beam direction can be any one of the beam directions of the multiple wake-up signals.

[0176] In another alternative implementation, the N wake-up signals MO can be N non-contiguous wake-up signals MO. The UE receives N partial information bit blocks of the same wake-up signal in the same beam direction. Optionally, the UE or UE group may listen to the N wake-up signals MO associated in the same beam direction to obtain all the information bits of the wake-up signal.

[0177] As an example, such as Figure 7 As shown, the UE monitors the wake-up signal information bit blocks transmitted in the N non-contiguous wake-up signals MO associated with the same beam direction in the K beam directions #1 to #K, obtains the complete wake-up signal bit information, and starts the DRX continuous timer based on the wake-up signal bit information.

[0178] Optionally, the partial information bit blocks of the wake-up signal transmitted by each of the N discontinuous wake-up signals MO are different.

[0179] In this embodiment, the multiple wake-up signal listening times are determined from the wake-up signal listening times corresponding to multiple beams based on the association between beam indices and wake-up signal listening times. For example, N wake-up signals MOs associated in the same beam direction can be determined through the association between beam indices and wake-up signal MOs. Assuming the UE is configured with K beams, the association could be that beam index 1 is associated with {the 1st MO, the (N+1)th MO, ..., the N*(K-1)+1th MO}, beam index 2 is associated with {the 2nd MO, the (N+2)th MO, ..., the N*(K-1)+2th MO}, and so on. This scheme is applicable when the wake-up signal and SSB are not configured with a QCL relationship. In this case, the UE determines the beam direction for receiving the wake-up signal by beam scanning.

[0180] In this embodiment of the disclosure, when the first indication information includes whether or not the secondary cell DRX persistence timer is enabled, the N wake-up signals may further include second indication information, wherein the second indication information includes the UE's identification information, such as index information that can uniquely identify the UE. Optionally, the UE's identification information may be a C-RNTI (Cell-RNTI, Cell Radio Network Temporary Identifier). The UE can determine the identification information through the information bits of the wake-up signal, or implicitly by obtaining the overlaid OFDM generation sequence scrambled with the identification information.

[0181] Optionally, when the UE identification information included in the second indication information is the same as the UE's identification information, the primary cell DRX persistence timer is started. Optionally, if the identification information received by the UE is the same as the local identification information, the UE triggers or starts the DRX-OndurationTimer associated with the wake-up signal and listens to the PDCCH within the DRX-OndurationTimer, or the UE triggers or starts the first timer or PDCCH listening duration associated with the wake-up signal and listens to the PDCCH within the first timer or PDCCH listening duration.

[0182] In this embodiment, the wake-up signal includes a wake-up signal information bit block index. The information bit block index is used to distinguish which information bit block the information received by the UE is in the complete wake-up signal information bit block. The UE can merge the information bit blocks into a complete wake-up signal information bit block according to the information bit block index in ascending order. Each wake-up signal information bit block index is associated with a wake-up signal MO. The number of wake-up signal information bit block indices is equal to the number of wake-up signals MO associated with the wake-up signal information bits, N. The sup(log2N) bit indicator can be used, where sup represents taking the upper bound. If the bit information corresponding to a certain information bit block index is not successfully decoded, or the UE does not listen to the information bit corresponding to a certain information bit block index, the UE can determine the first indication information based on other received or decoded information bits, such as whether to trigger DRX-OndurationTimer, or the indication information of whether the Scell ​​triggers / does not trigger the first timer or the PDCCH listening duration, etc. Optionally, the UE listens to the PDCCH on the Scell ​​that is indicated as active, does not listen to the PDCCH on the Scell ​​corresponding to the missing information bit, and / or determines that the Scell ​​corresponding to the missing information bit is in an inactive state.

[0183] This disclosure provides a method for determining the number of information bits in a wake-up signal (which may not be determined through configuration). Specifically, the UE can receive second configuration information, wherein the second configuration information includes the number of secondary cells, and the number of information bits in the wake-up signal is determined based on the number of secondary cells. Alternatively, the number of information bits in the wake-up signal can be determined by the length of the wake-up signal information bit block index and the configured number of secondary cells. Alternatively, the number of information bits in the wake-up signal and / or the length of the wake-up signal information bit block can be determined by at least one of the following: the length of the UE's identification information, the length of the first indication information, the length of the wake-up signal information bit block index, etc.

[0184] In this embodiment of the disclosure, a method for determining the number N of wake-up signals MO is provided. Specifically, the number N of wake-up signal listening times associated with the wake-up signals is determined based on the number of information bits of the wake-up signals and the maximum number of bits that a wake-up signal listening time can carry (which can also be understood as an upper bound of the maximum number of wake-up signal information bits that a wake-up signal listening time can carry).

[0185] Optionally, the number N of wake-up signal MO associated with the wake-up signal information bits can be determined by dividing the number of wake-up signal information bits by the upper bound of the maximum number of bits. The maximum number of bits can be a predefined or preconfigured value.

[0186] As an example, the number N of wake-up signals MO associated with the wake-up signal information bits used to transmit the wake-up signal needs to satisfy the following formula:

[0187] N*Max = sup(log₂N)*N + Q

[0188] Where Q represents the number of secondary cells configured, and Max represents the maximum number of bits that can be carried during a wake-up signal listening session. This scheme is suitable for situations where the wake-up signal information bits transmitted in each MO include the wake-up signal partial information bit block index.

[0189] In this embodiment of the disclosure, the association between the secondary cell and the wake-up signal monitoring timing can be determined based on the first indication information corresponding to the secondary cell and the number of wake-up signal monitoring timings associated with the wake-up signal. For example, in a wake-up signal information bit block, the low-order log2N bits can be the wake-up signal information bit block index, and the high-order Max minus log2N bits are the first indication information corresponding to the secondary cell.

[0190] In this embodiment of the disclosure, if cross-carrier scheduling is configured, the UE can also receive third configuration information, wherein the third configuration information includes serving cells that support cross-carrier scheduling, and the number of information bits in the wake-up signal is determined based on the number of serving cells that support cross-carrier scheduling. Alternatively, the number of information bits in the wake-up signal is determined based on the number of activated secondary cells that do not support cross-carrier scheduling and the number of serving cells that are configured with cross-carrier scheduling. The number of activated secondary cells that do not support cross-carrier scheduling can also refer to activated Scell ​​cells that are not configured with cross-carrier scheduling (e.g., ...). Figure 5 The number of Scell-2 cells in the table, where the number of serving cells configured with cross-carrier scheduling can refer to serving cells configured with cross-carrier scheduling and whose cif-presence parameter is set to true (e.g., serving cells with cross-carrier scheduling configured and whose cif-presence parameter is set to true). Figure 5The number of Pcells in the Pcell. For example, the wake-up signal can be a bitmap indicating the first indication information associated with the Scell ​​(e.g., whether the Scell ​​triggers / does not trigger the first timer or the duration of PDCCH listening, etc.). Each bit of the wake-up signal corresponds to one and / or more cells. The high-order bits to low-order bits of the bitmap correspond to the first to the last Scell ​​in ascending order of the activated Scell ​​cell ID (Identity document). If the Scell ​​cell is scheduled across carriers (e.g., ...), the number of Pcells in the Pcell is determined by the number of Pcells in the Pcell. Figure 5 If the Scell-1 in the bitmap is not included, then the above mapping relationship does not include the Scell ​​cell ID. Optionally, if the serving cell with cif-presence set to true is Pcell, then the wake-up signal can trigger PDCCH listening on Pcell without indicating the PDCCH listening on Pcell through the 1 bit information in the bitmap. After receiving the wake-up signal, the UE automatically triggers PDCCH listening on Pcell.

[0191] In this embodiment of the disclosure, multiple LPWUS MOs configured on a Pcell can be used to send different LPWUS signal blocks of one LPWUS signal to enable a first timer or PDCCH listening duration for each cell. A method is provided for multiple wake-up signal MOs to trigger the activation of a first timer or PDCCH listening duration on the Pcell and Scell. Specifically, the UE determines the time-domain position of the wake-up signal timing and / or one or more wake-up signal MOs on the Pcell using at least one of the following: the period of the configured wake-up signal timing and / or the period of the wake-up signal MO, the start position of the wake-up signal timing and / or the start position of the wake-up signal MO, the duration of the wake-up signal timing and / or the interval between two wake-up signal MOs. Optionally, the first start position of the first timer or PDCCH listening duration on the primary cell is determined based on at least one of the following:

[0192] (1) The end position of the first wake-up signal listening time and the third time interval in at least one wake-up signal listening time;

[0193] For example, if the identification information received by the UE on the first wake-up signal MO among at least one determined wake-up signals MO is the same as the local identification information, the UE determines the start point of triggering or starting the first timer or PDCCH listening duration associated with the wake-up signal on the Pcell based on the end position of the first MO among at least one wake-up signal MO and the aforementioned third time interval, and listens for the PDCCH during the first timer or PDCCH listening duration. This scheme can reduce the waiting latency of PDCCH listening on the Pcell and / or Scell.

[0194] (2) The end position of the last wake-up signal listening time in at least one wake-up signal listening time and the third time interval;

[0195] For example, the UE determines the start point of triggering or starting the first timer or PDCCH listening duration associated with the wake-up signal on the Pcell based on the end position of the last wake-up signal MO in at least one wake-up signal MO and the aforementioned third time interval, and listens for the PDCCH during the first timer or PDCCH listening duration. This method avoids collisions between PDCCH listening on the Pcell and subsequent wake-up signal MO listening.

[0196] (3) Determine the end position of the last wake-up signal listening time and the third time interval of the UE's identification information.

[0197] For example, if the identification information is determined by the UE through the information bits of the wake-up signal, when the identification information received by the UE on a determined wake-up signal MO is the same as the local identification information, or when the identification information composed of multiple identification information bit blocks received on multiple wake-up signals MO is the same as the local identification information, the UE determines the start point of triggering or starting the first timer or PDCCH listening duration associated with the wake-up signal on the Pcell based on the end position of the last wake-up signal MO that determined the identification information and the aforementioned third time interval, and listens for the PDCCH within the first timer or PDCCH listening duration. This scheme can reduce the waiting latency of PDCCH listening on the Pcell and / or Scell.

[0198] In this embodiment of the disclosure, the UE can determine the start position of the first timer or PDCCH listening duration on each active Scell ​​by means of the association between the Scell ​​and the wake-up signal MO, the aforementioned third time interval and / or the fourth time interval (such as the minimum time interval). Specifically, the first configuration information also includes the fourth time interval, wherein the fourth time interval is the time interval from the end position of the wake-up signal listening time when the first indication information is located to the start position of starting the first timer or PDCCH listening duration.

[0199] The timing of the wake-up signal monitoring where the first indication information is located is determined based on the correlation between the secondary base station and the wake-up signal monitoring timing, as well as the position of the information bit where the first indication information is located. For example, the UE determines the wake-up signal MO where the indication information is located by the position of the wake-up signal information bit where the first indication information of the configured secondary base station (e.g., the duration of Scell ​​triggering / not triggering the first timer or PDCCH monitoring) is located, and the correlation between Scell ​​and wake-up signal MO.

[0200] Optionally, if the UE is triggered to complete the first timer or PDCCH listening duration on the Pcell, and the UE determines, based on the end position of the wake-up signal MO containing the indication information and the fourth time interval, that the start position (second start position) of the first timer or PDCCH listening duration on one or more associated Scells is earlier than the start position (first start position) of the first timer or PDCCH listening duration on the Pcell, the UE determines that the start position of the first timer or PDCCH listening duration on one or more associated Scells is the same as the start position of the first timer or PDCCH listening duration on the Pcell. That is, when the second start position is earlier than the first start position, the first start position is used as the second start position. This scheme ensures that the MR can be woken up to perform PDCCH listening on both the Pcell and Scell.

[0201] Alternatively, if the start position of the first timer or PDCCH listening duration on one or more associated Scells, determined by the UE based on the end position of the wake-up signal MO where the indication information wake-up signal is located and the fourth time interval, is later than the start position of the first timer or PDCCH listening duration on the Pcell, then the start position of the first timer or PDCCH listening duration on one or more associated Scells is determined based on the end position of the wake-up signal MO where the indication information is located and the fourth time interval. This method is because the MR has been woken up by the first timer or PDCCH listening duration triggered by the Pcell. When the first timer or PDCCH listening duration on the Scell ​​is triggered, it is not necessary to wake up the MR; the RF (Radio Frequency) can be readjusted.

[0202] As an example, such as Figure 8 As shown, the UE is triggered by the first wake-up signal MO to start the first timer or PDCCH listening duration on the Pcell. The start position of the first timer or PDCCH listening duration on the Scell-1 is determined based on the end position of the last wake-up signal MO where the indication wake-up signal is located and the fourth time interval (also known as offset). The PDCCH listened on the Scell-1 can schedule the PDSCH of the Scell-2.

[0203] If the UE does not trigger the first timer or PDCCH listening duration on the Pcell, the third start position of the first timer or PDCCH listening duration of the first secondary cell among multiple secondary cells is determined based on the end position of the wake-up signal listening timing where the information related to whether or not the first secondary cell triggers PDCCH listening is located and the third time interval. The UE determines the start position of the first timer or PDCCH listening duration on the indicated Scell ​​based on the end position of the wake-up signal MO where the information bit of the first Scell ​​triggers the first timer or PDCCH listening duration in the indication information is located and the aforementioned third time interval.

[0204] Optionally, if the second starting position of at least one of the secondary cells, starting from the second secondary cell, is earlier than the third starting position, the third starting position is taken as the second starting position of at least one secondary cell. For example, if the UE determines that the starting position of the wake-up signal MO, which contains information bits other than those related to the first Scell ​​(such as information bits related to the duration of the first timer or PDCCH listening in the Scell ​​triggering), and the starting position of the first timer or PDCCH listening duration on other Scells determined by the fourth time interval (the second starting position corresponding to other secondary cells), is earlier than the starting position of the first Scell ​​triggering (the third starting position), the UE determines that the starting position of the first timer or PDCCH listening duration on other Scells is the same as the starting position of the first Scell ​​triggering.

[0205] Alternatively, if the UE determines the start position of the wake-up signal MO (MO) containing information bits other than those related to the first Scell ​​in the indication information (such as information bits related to the Scell ​​triggering the first timer or PDCCH monitoring duration), and the start position of the first timer or PDCCH monitoring duration on other Scells (the second start position corresponding to other secondary cells) determined by the fourth time interval, which is later than the start position (third start position) of the first Scell ​​trigger, then the start position of the first timer or PDCCH monitoring duration on other Scells is determined based on the end position of the wake-up signal MO containing information bits other than those related to the first Scell ​​in the indication information and the fourth time interval. This scheme can reduce the waiting delay of PDCCH monitoring.

[0206] Optionally, the fourth time interval may include at least one of the wake-up signal processing time, inter-carrier switching time, or inter-serving cell switching time.

[0207] Optionally, the granularity of the fourth time interval can be OFDM symbols.

[0208] In this embodiment, the first configuration information includes fourth configuration information related to the wake-up signal of the primary cell and / or fifth configuration information related to the wake-up signal of the secondary cell. For example, the UE obtains the configuration information of the wake-up signal timing or wake-up signal MO on the P cell through RRC configuration, and the UE obtains the configuration information of the wake-up signal timing or wake-up signal MO on the S cell through sCellConfigCommon (common secondary cell configuration parameters). This scheme allows the base station to more flexibly schedule the downlink data transmitted on each aggregated carrier.

[0209] In this embodiment of the disclosure, an optional implementation method is provided for step S102, which may specifically include: listening for wake-up signals on a serving cell configured with cross-carrier scheduling, and listening for wake-up signals on a serving cell that does not support cross-carrier scheduling.

[0210] As an example, such as Figure 9 As shown, the UE listens to the wake-up signal timing or wake-up signal MO on the serving cell configured with cross-carrier scheduling and cif-presence set to true, for example... Figure 9 The corresponding wake-up signal MO of the Pcell, and the timing of the wake-up signal or wake-up signal MO configured on the serving cell that is not configured for cross-carrier scheduling, for example Figure 9 The corresponding wake-up signal MO for Scell-2. If the UE receives a wake-up signal at the configured wake-up signal timing or at the wake-up signal MO, the wake-up signal triggers PDCCH listening on the corresponding serving cell. This triggers PDCCH listening on the Pcell, and the PDCCH listened on the Pcell can schedule the PDSCH of the Pcell and Scell-1. It also triggers PDCCH listening on Scell-2, and the listened PDCCH can schedule the PDSCH of Scell-2.

[0211] Optionally, the wake-up signal can trigger PDCCH monitoring in at least one of the following ways: triggering or starting the DRX-OndurationTimer applied to the current cell, triggering or starting the first timer or PDCCH monitoring duration.

[0212] In this embodiment of the disclosure, for cases where the SCell sleep indication field in DCI 0_1 and 1_1 does not appear, and the UE is configured with a wake-up signal but not with DCI 2-6, in order to ensure the correct implementation of the SCell sleep (dormancy) indication function, a method for indicating SCell sleep using a wake-up signal is also provided.

[0213] In an optional implementation, the UE may also receive an RRC message, which includes a first out-of-activation-time BWP, a sleep BWP, and cross-carrier scheduling-related configuration information. The cross-carrier scheduling-related configuration information includes an index of the secondary cell being cross-carrier scheduled. Based on first indication information indicating N wake-up signals and the index of the secondary cell being cross-carrier scheduled, it is determined that the downlink BWP in the secondary cell being cross-carrier scheduled is either a sleep BWP or a BWP outside the first activation time. The first configuration information also includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information.

[0214] Optionally, the bitmap length of the serving cell sleep indication information (e.g., SCell sleep indication information) is an integer greater than 1.

[0215] Optionally, if `dormancyGroupOutsideActiveTime` is not configured, the SCell sleep indication information is 0 bits; otherwise, the downlink BWP is determined to be a sleeping BWP based on the configured index of the secondary cell scheduled across carriers (such as the SCell sleep group index). Each bit of the SCell sleep indication information corresponds to a set of SCell sleep group indices, where the high-order bits to low-order bits of the bitmap correspond to the first to last configured SCell sleep groups in ascending order of the SCell sleep group indices. The SCell sleep indication information is used to indicate whether the downlink BWP used by the corresponding SCell sleep group index is the BWP indicated by `firstOutsideActiveTimeBWP` or a sleeping BWP. If the value of the SCell sleep indication bit corresponding to the SCell sleep group index is 0, it indicates that the downlink BWP is a sleeping BWP; if the value of the SCell sleep indication bit corresponding to the SCell sleep group index is 1, it indicates that the downlink BWP is an active BWP indicated by `firstOutsideActiveTimeBWP`.

[0216] Optionally, the number of information bits in the sleep indication information is determined at least based on the number of sleep groups in the serving cell. Then, the number of wake-up signal information bits can be determined by at least one of the following: the length of the identification information that can identify one or more UEs, and the number of SCell sleep groups.

[0217] This disclosure also provides a method executed by a user equipment (UE) in a communication system, such as... Figure 10a As shown, the method includes:

[0218] Step S201: Receive an RRC message. The RRC message includes the BWP outside the first activation time, the sleep BWP, and configuration information related to cross-carrier scheduling. The configuration information related to cross-carrier scheduling includes the index of the secondary cell to be cross-carrier scheduled.

[0219] Step S202: Receive fourth configuration information related to the wake-up signal. The fourth configuration information includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information, where N is determined based on the number of information bits of a wake-up signal.

[0220] Step S203: Based on the fourth configuration information, receive the N wake-up signals transmitted during the N wake-up signal listening times;

[0221] Step S204: Based on the serving cell sleep indication information indicated by N wake-up signals and the index of the secondary cell scheduled across carriers, determine whether the downlink BWP of the secondary cell scheduled across carriers is a sleep BWP or a BWP outside the first activation time.

[0222] Optionally, the RRC message may also include the number of serving cell sleep groups; the number of information bits in the serving cell sleep indication information is determined based on the number of serving cell sleep groups.

[0223] For the embodiments of this disclosure, the implementation methods of each step can be found in the description above, and will not be repeated here.

[0224] In this embodiment of the disclosure, for cases where the SCell sleep indication field does not appear in DCI 0_1 and 1_1, and the UE is configured with a wake-up signal but not with DCI 2-6, in order to ensure the correct implementation of the SCell sleep (dormancy) indication function, a method executed by the user equipment (UE) in a communication system is also provided, such as... Figure 10b As shown, the method includes:

[0225] Step S301: On a secondary cell that is cross-carrier scheduled, if a PDSCH scheduled by the primary cell or other secondary cells is received, a sleep timer is started after the fifth time interval based on the end position of the PDSCH.

[0226] Step S302: If the sleep timer expires, switch the active downlink BWP to the sleep BWP.

[0227] Optionally, if the next scheduled PDSCH is received during the operation of the sleep timer, the sleep timer is restarted.

[0228] The fifth time interval is a predefined or preconfigured value, and the value of the fifth time interval can also be 0.

[0229] For example, on a cross-carrier scheduled SCell, the UE can start an Scell ​​sleep timer at the fifth time interval after receiving a PDSCH from a PCell or other SCell. If the next scheduled PDSCH is received during the Scell ​​sleep timer's operation, the Scell ​​sleep timer is restarted. When the Scell ​​sleep timer times out, for example, when the Scell ​​sleep timer decrements to 0, the UE switches the active downlink BWP used for PDSCH reception to the sleep BWP. This scheme is suitable for situations where SCell sleep indication and / or SCell activation / deactivation functions are not configured. It avoids the UE continuously listening to the active BWP or performing measurements on the active BWP on a carrier or cell where there is no signal and / or data transmission, thus reducing the power consumption of the UE listening to the active BWP.

[0230] In this embodiment of the disclosure, the serving cells in the serving cell sleep group have an active or sleep relationship. For example, the association between the SCell sleep group index and the active SCell can be based on RRC configuration or predefined. For example, cells with cif-presence set to true and cells scheduled across carriers by them can be divided into one SCell sleep group. The wake-up signal can be a bitmap indicating whether PDCCH monitoring is triggered on each associated SCell sleep group. The method for triggering PDCCH monitoring can be at least one of the following: triggering the start of the DRX-OndurationTimer applied to the current cell, triggering or starting the first timer or PDCCH monitoring duration. Optionally, if the cell with cif-presence set to true is a PCell, the wake-up signal does not need to indicate the triggering of PDCCH monitoring on the PCell through 1 bit information in the bitmap; the UE automatically triggers PDCCH monitoring on the PCell after receiving the wake-up signal.

[0231] Based on at least one of the above embodiments, such as Figure 11As shown in the embodiments of this disclosure, a PDCCH listening procedure triggered by a wake-up signal is provided when carrier aggregation is configured. Specifically, it may include: receiving RRC configuration parameters and obtaining configuration information of the wake-up signal timing and / or wake-up signal listening timing. Based on the RRC configuration parameters, when carrier aggregation is configured, the UE listens to the wake-up signal timing and / or one or more wake-up signal listening timings configured on the primary carrier. If the UE receives a wake-up signal, the UE, based on the indication of the wake-up signal, enables drx-onDurationTimer or a first timer or PDCCH listening duration, and listens to the PDCCH on the primary cell and / or the active secondary cell or the BWP active in the secondary cell. Alternatively, based on the RRC configuration parameters, when carrier aggregation is configured, the UE listens to the configured wake-up signal timing and / or wake-up signal listening timing on the cell where cif-presence is set to true. If the UE receives a wake-up signal, according to the indication of the wake-up signal, it determines whether to enable drx-onDurationTimer or a first timer or PDCCH listening duration on the associated cell, and / or whether to switch the BWP active on the scheduled secondary cell to a sleep BWP.

[0232] The method executed by the UE provided in this disclosure can reduce the UE's power consumption, further extend the UE's battery life, and simultaneously achieve accurate wake-up of secondary cells.

[0233] This disclosure also provides a method executed by a base station in a communication system, the method comprising:

[0234] Step S401: Send first configuration information related to the wake-up signal. The first configuration information includes configuration information related to the listening timing of N wake-up signals associated with the wake-up signal, where N is determined based on the number of information bits of the wake-up signal.

[0235] Step S402: Based on the first configuration information, transmit the j-th wake-up signal during the j-th wake-up signal listening time, where j is an integer from 1 to N;

[0236] The first instruction information includes at least one of the following:

[0237] Enable or disable the DRX persistent timer;

[0238] Activate or deactivate Scell;

[0239] Whether to trigger the first timer or the duration of PDCCH monitoring.

[0240] Optionally, the first configuration information also includes a first time interval, wherein the first time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals or the end position of the N wake-up signal listening time or the end position of the wake-up signal timing to the start of the DRX continuous timer.

[0241] Optionally, the first configuration information also includes a first offset, wherein the first offset is the offset from the starting position of the N wake-up signal listening times or the starting position of the first wake-up signal listening time among the N wake-up signal listening times to the start time of the DRX persistent timer.

[0242] Optionally, the first configuration information also includes a second time interval, wherein the second time interval is the time interval between the end position of the i-th wake-up signal listening time and the start position of the (i+1)-th wake-up signal listening time, and i is an integer from 1 to N-1.

[0243] Optionally, the method further includes: sending second configuration information, wherein the second configuration information includes the number of secondary cells, and the number of information bits of the wake-up signal is determined based on the number of secondary cells.

[0244] Optionally, when the first indication information includes whether to enable the secondary cell DRX continuous timer, the N wake-up signals also include a second indication information, wherein the second indication information includes the UE's identification information;

[0245] When the UE identification information included in the second indication information is the same as the UE identification information, the primary cell DRX continuous timer is started.

[0246] Optionally, the first configuration information also includes a third time interval, wherein the third time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals to the start position of the first timer or the PDCCH listening duration.

[0247] or,

[0248] The third time interval is the time interval between the end position of the M wake-up signal listening timing used to determine the UE's identification information and the start position of the first timer or PDCCH listening duration, where M is an integer from 1 to N.

[0249] Optionally, the third time interval is determined based on the inter-carrier switching time and / or the inter-serving cell switching time.

[0250] Optionally, the inter-carrier switching time and / or inter-serving cell switching time are determined based on the minimum SCS of the PDCCH being listened to on multiple serving cells, or based on the minimum SCS of the PDCCH being listened to on serving cells other than the serving cell transmitting the wake-up signal.

[0251] Optionally, the first configuration information also includes a fourth time interval, wherein the fourth time interval is the time interval between the end position of the wake-up signal listening time when the first indication information is located and the start position of the start of the first timer or the PDCCH listening duration.

[0252] Optionally, the timing of the wake-up signal monitoring where the first indication information is located is determined based on the correlation between the secondary cell and the wake-up signal monitoring timing, as well as the position of the information bits where the first indication information is located.

[0253] Optionally, the wake-up signal includes a wake-up signal information bit block index.

[0254] Optionally, the number of information bits in the wake-up signal is determined by the number of bits occupied by the wake-up signal information bit block index and the number of secondary cells.

[0255] Optionally, the method further includes:

[0256] Send third configuration information, which includes serving cells that support cross-carrier scheduling. The number of information bits in the wake-up signal is determined based on the number of serving cells that support cross-carrier scheduling.

[0257] Optionally, the wake-up signal includes sleep indication information, which is used to indicate whether the downlink BWP of the secondary cell scheduled across carriers is a sleep BWP.

[0258] Optionally, the number of information bits in the sleep indication information is determined based at least on the number of sleep groups in the serving cell.

[0259] This disclosure also provides a method executed by a base station in a communication system, the method comprising:

[0260] Step S501: Send an RRC message. The RRC message includes configuration information related to the BWP outside the first activation time, the sleep BWP, and cross-carrier scheduling. The configuration information related to cross-carrier scheduling includes the index of the secondary cell to be cross-carrier scheduled.

[0261] Step S502: Send fourth configuration information related to the wake-up signal. The fourth configuration information includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information, where N is determined based on the number of information bits of a wake-up signal.

[0262] Step S503: Based on the fourth configuration information, transmit the j-th wake-up signal during the j-th wake-up signal listening time, where j is an integer from 1 to N;

[0263] Among them, the serving cell sleep indication information indicated by N wake-up signals and the index of the secondary cell scheduled across carriers are used to determine the downlink BWP of the secondary cell scheduled across carriers.

[0264] Optionally, the RRC message may also include the number of serving cell sleep groups; the number of information bits in the serving cell sleep indication information is determined based on the number of serving cell sleep groups.

[0265] The method executed by the base station in this disclosure corresponds to the steps of the method executed by the UE, and their implementation principles are similar, with corresponding technical effects. For a detailed functional description of the method executed by the base station, please refer to the description of the method executed by the UE shown above; it will not be repeated here.

[0266] This disclosure provides an electronic device including a processor, and optionally, a transceiver and / or memory coupled to the processor. The processor is configured to perform the steps of the method provided in any optional embodiment of this disclosure. Optionally, the electronic device may refer to a UE (User Equipment), in which case the processor is configured to implement the steps of the various method embodiments executed by the UE. Detailed functional descriptions and beneficial effects can be found in the foregoing descriptions of the various method embodiments executed by the UE, and will not be repeated here. Optionally, the electronic device may refer to a base station, in which case the processor is configured to implement the steps of the various method embodiments executed by the base station. Detailed functional descriptions and beneficial effects can be found in the foregoing descriptions of the various method embodiments executed by the base station, and will not be repeated here. In practical applications, a UE or a base station can be understood as different network nodes.

[0267] This disclosure also provides an electronic device including at least one controller / processor, and optionally, at least one transceiver coupled to the at least one controller / processor, the processor being configured to perform the steps of the method provided in any optional embodiment of this disclosure.

[0268] Figure 12 The diagram shows a structural schematic of an electronic device to which an embodiment of the present invention applies, such as... Figure 12 As shown, Figure 12The illustrated electronic device 4000 includes a processor 4001 and a memory 4003. The processor 4001 and memory 4003 are connected, for example, via a bus 4002. Optionally, the electronic device 4000 may further include a transceiver 4004, which can be used for data interaction between the electronic device and other electronic devices, such as sending and / or receiving data. It should be noted that in practical applications, the transceiver 4004 is not limited to one type, and the structure of the electronic device 4000 does not constitute a limitation on the embodiments of this disclosure. Optionally, the electronic device may be a gNB, a UE, or other entity or node in a communication network.

[0269] Processor 4001 may be a CPU (Central Processing Unit), a general-purpose processor, a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logic blocks, modules, and circuits described in conjunction with this disclosure. Processor 4001 may also be a combination that implements computational functions, such as including one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

[0270] Bus 4002 may include a pathway for transmitting information between the aforementioned components. Bus 4002 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. Bus 4002 can be divided into address bus, data bus, control bus, etc. For ease of representation, Figure 12 The bus is represented by a single thick line, but this does not mean that there is only one bus or one type of bus.

[0271] The memory 4003 may be ROM (Read Only Memory) or other types of static storage devices capable of storing static information and instructions, RAM (Random Access Memory) or other types of dynamic storage devices capable of storing information and instructions, or EEPROM (Electrically Erasable Programmable Read Only Memory), CD-ROM (Compact Disc Read Only Memory) or other optical disc storage, optical disc storage (including compressed optical discs, laser discs, optical discs, digital universal optical discs, Blu-ray discs, etc.), magnetic disk storage media, other magnetic storage devices, or any other medium capable of carrying or storing computer programs and capable of being read by a computer, without limitation herein.

[0272] The memory 4003 is used to store computer programs that execute embodiments of the present disclosure, and is controlled by the processor 4001 to execute them. The processor 4001 is used to execute the computer programs stored in the memory 4003 to implement the steps shown in the foregoing method embodiments.

[0273] This disclosure provides a computer-readable storage medium storing a computer program, which, when executed by a processor, can implement the steps and corresponding content of the aforementioned method embodiments.

[0274] This disclosure also provides a computer program product, including a computer program that, when executed by a processor, can implement the steps and corresponding content of the aforementioned method embodiments.

[0275] The terms “first,” “second,” “third,” “fourth,” “1,” “2,” etc. (if present) in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this disclosure described herein can be implemented in a sequence other than that shown in the figures or text.

[0276] It should be understood that although arrows indicate various operation steps in the flowcharts of the embodiments of this disclosure, the order in which these steps are implemented is not limited to the order indicated by the arrows. Unless explicitly stated herein, in some implementation scenarios of the embodiments of this disclosure, the implementation steps in each flowchart can be executed in other orders as required. Furthermore, some or all of the steps in each flowchart may include multiple sub-steps or multiple stages based on the actual implementation scenario. Some or all of these sub-steps or stages can be executed at the same time, and each sub-step or stage can also be executed at different times. In scenarios where execution times differ, the execution order of these sub-steps or stages can be flexibly configured as required, and the embodiments of this disclosure do not limit this.

[0277] The above text and accompanying drawings are provided as examples only to help the reader understand this disclosure. They are not intended and should not be construed as limiting the scope of this disclosure in any way. Although certain embodiments and examples have been provided, it will be apparent to those skilled in the art, based on the content disclosed herein, that changes can be made to the illustrated embodiments and examples, and other similar implementations based on the technical concept of this disclosure can be adopted without departing from the scope of this disclosure, and these modifications and modifications are also within the protection scope of the embodiments of this disclosure.

Claims

1. A method executed by a user equipment (UE) in a communication system, characterized in that, include: The first configuration information related to receiving the wake-up signal includes configuration information related to the listening timing of N wake-up signals associated with the wake-up signal, wherein N is determined based on the number of information bits of a wake-up signal; Based on the first configuration information, receive N wake-up signals transmitted during the N wake-up signal listening times; Based on the first indication information indicated by the N wake-up signals, determine whether to monitor the Physical Downlink Control Channel (PDCCH); The first indication information includes at least one of the following: Enable or disable the discontinuous reception DRX persistence timer; Activate or deactivate the secondary cell Scell; Whether to trigger the first timer or the duration of PDCCH monitoring.

2. The method according to claim 1, characterized in that, The first configuration information also includes a first time interval, wherein the first time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals to the start of the DRX continuous timer.

3. The method according to claim 1 or 2, characterized in that, The first configuration information also includes a first offset, wherein the first offset is the offset from the starting position of the first wake-up signal listening time among the N wake-up signal listening times to the start time of the DRX persistent timer.

4. The method according to any one of claims 1-3, characterized in that, The first configuration information also includes a second time interval, wherein the second time interval is the time interval from the end position of the i-th wake-up signal listening time to the start position of the (i+1)-th wake-up signal listening time, and i is an integer from 1 to N-1.

5. The method according to any one of claims 1-4, characterized in that, Also includes: Receive second configuration information, wherein the second configuration information includes the number of secondary cells, and the number of information bits of the wake-up signal is determined based on the number of secondary cells.

6. The method according to any one of claims 1-5, characterized in that, When the first indication information includes whether to enable the secondary cell DRX continuous timer, the N wake-up signals also include second indication information, wherein the second indication information includes the UE's identification information; When the UE identification information included in the second indication information is the same as the UE identification information, the primary cell DRX continuous timer is started.

7. The method according to any one of claims 1, 3-5, characterized in that, The first configuration information also includes a third time interval, wherein the third time interval is the time interval from the end position of the last wake-up signal among the N received wake-up signals to the start position of starting the first timer or the PDCCH listening duration; or, The third time interval is the time interval between the end position of the M wake-up signal listening timing used to determine the UE's identification information and the start position of the first timer or PDCCH listening duration, where M is an integer from 1 to N.

8. The method according to claim 7, characterized in that, The third time interval is determined based on the inter-carrier switching time and / or the inter-service cell switching time.

9. The method according to claim 8, characterized in that, The inter-carrier switching time and / or inter-serving cell switching time are determined based on the minimum subcarrier spacing (SCS) of the PDCCH listening on multiple serving cells, or based on the minimum SCS of the PDCCH listening on serving cells other than the serving cell transmitting the wake-up signal.

10. The method according to any one of claims 1, 3-5, characterized in that, The first configuration information also includes a fourth time interval, wherein the fourth time interval is the time interval from the end position of the wake-up signal listening time when the first indication information is located to the start position of the first timer or the PDCCH listening duration.

11. The method according to claim 10, characterized in that, The timing of the wake-up signal monitoring where the first indication information is located is determined based on the correlation between the secondary cell and the wake-up signal monitoring timing, as well as the position of the information bits where the first indication information is located.

12. The method according to any one of claims 1-11, characterized in that, The wake-up signal includes a wake-up signal information bit block index.

13. The method according to claim 12, characterized in that, The number of information bits in a wake-up signal is determined by the number of bits occupied by the wake-up signal information bit block index and the number of secondary cells.

14. The method according to any one of claims 1-13, characterized in that, Also includes: Receive third configuration information, wherein the third configuration information includes serving cells that support cross-carrier scheduling, and the number of information bits in the wake-up signal is determined based on the number of serving cells that support cross-carrier scheduling.

15. The method according to claim 1, characterized in that, Also includes: Receive a Radio Resource Control (RRC) message, the RRC message including a first active time out-of-bandwidth portion (BWP), a sleep BWP, and cross-carrier scheduling related configuration information, wherein the cross-carrier scheduling related configuration information includes an index of the secondary cell being cross-carrier scheduled; Based on the first indication information indicated by the N wake-up signals and the index of the secondary cell scheduled across carriers, it is determined that the downlink BWP of the secondary cell scheduled across carriers is either a sleep BWP or a BWP outside the first activation time. The first configuration information also includes configuration information related to the listening timing of N wake-up signals associated with the sleep indication information of the serving cell.

16. A method executed by a user equipment (UE) in a communication system, characterized in that, The method includes: Receive a Radio Resource Control (RRC) message, the RRC message including a first active time out-of-bandwidth portion (BWP), a sleep BWP, and cross-carrier scheduling related configuration information, wherein the cross-carrier scheduling related configuration information includes an index of the secondary cell being cross-carrier scheduled; The fourth configuration information related to receiving wake-up signals includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information, wherein N is determined based on the number of information bits of a wake-up signal; Based on the fourth configuration information, receive N wake-up signals transmitted during the N wake-up signal listening times; Based on the sleep indication information of the serving cell indicated by the N wake-up signals and the index of the secondary cell scheduled across carriers, the downlink BWP of the secondary cell scheduled across carriers is determined to be either a sleep BWP or a BWP outside the first activation time.

17. The method according to claim 16, characterized in that, Also includes: Receive an RRC message, the RRC message also including the number of sleep groups in the serving cell; The number of information bits in the serving cell sleep indication information is determined based on the number of serving cell sleep groups.

18. A method executed by a base station in a communication system, characterized in that, include: Sending wake-up signal-related first configuration information, the first configuration information includes configuration information related to the listening timing of N wake-up signals associated with the wake-up signal, wherein N is determined based on the number of information bits of a wake-up signal; Based on the first configuration information, the j-th wake-up signal is transmitted during the j-th wake-up signal listening time, where j is an integer from 1 to N; The first indication information includes at least one of the following: Enable or disable the discontinuous reception DRX persistence timer; Activate or deactivate the secondary cell Scell; Whether to trigger the first timer or the duration of the physical downlink control channel (PDCCH) monitoring.

19. A method executed by a base station in a communication system, characterized in that, The method includes: Send a Radio Resource Control (RRC) message, the RRC message including a first active time out-of-bandwidth portion (BWP), a sleep BWP, and cross-carrier scheduling related configuration information, wherein the cross-carrier scheduling related configuration information includes an index of the secondary cell being cross-carrier scheduled; The fourth configuration information related to sending wake-up signals includes configuration information related to the listening timing of N wake-up signals associated with the serving cell sleep indication information, wherein N is determined based on the number of information bits of a wake-up signal; Based on the fourth configuration information, the j-th wake-up signal is transmitted during the j-th wake-up signal listening time, where j is an integer from 1 to N; The serving cell sleep indication information indicated by the N wake-up signals and the index of the secondary cell scheduled across carriers are used to determine the downlink BWP of the secondary cell scheduled across carriers.

20. An electronic device, characterized in that, include: transceiver, and A processor, coupled to the transceiver and configured to perform the method of any one of claims 1-17 or 18-19.

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