EP4631294A1 - Procédé de communication et dispositif de communication - Google Patents

Procédé de communication et dispositif de communication

Info

Publication number
EP4631294A1
EP4631294A1 EP24741634.0A EP24741634A EP4631294A1 EP 4631294 A1 EP4631294 A1 EP 4631294A1 EP 24741634 A EP24741634 A EP 24741634A EP 4631294 A1 EP4631294 A1 EP 4631294A1
Authority
EP
European Patent Office
Prior art keywords
signal
wake
cycle
base station
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP24741634.0A
Other languages
German (de)
English (en)
Other versions
EP4631294A4 (fr
Inventor
Pengru LI
Min Wu
Feifei SUN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of EP4631294A1 publication Critical patent/EP4631294A1/fr
Publication of EP4631294A4 publication Critical patent/EP4631294A4/fr
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H04W52/0235—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal where the received signal is a power saving command
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
    • H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present disclosure relates to wireless communication, and more particularly, to communication using a wake-up signal.
  • 5G mobile communication technologies define broad frequency bands such that high transmission rates and new services are possible, and can be implemented not only in “Sub 6GHz” bands such as 3.5GHz, but also in “Above 6GHz” bands referred to as mmWave including 28GHz and 39GHz.
  • 6G mobile communication technologies referred to as Beyond 5G systems
  • terahertz bands for example, 95GHz to 3THz bands
  • IIoT Industrial Internet of Things
  • IAB Integrated Access and Backhaul
  • DAPS Dual Active Protocol Stack
  • 5G baseline architecture for example, service based architecture or service based interface
  • NFV Network Functions Virtualization
  • SDN Software-Defined Networking
  • MEC Mobile Edge Computing
  • multi-antenna transmission technologies such as Full Dimensional MIMO (FD-MIMO), array antennas and large-scale antennas, metamaterial-based lenses and antennas for improving coverage of terahertz band signals, high-dimensional space multiplexing technology using OAM (Orbital Angular Momentum), and RIS (Reconfigurable Intelligent Surface), but also full-duplex technology for increasing frequency efficiency of 6G mobile communication technologies and improving system networks, AI-based communication technology for implementing system optimization by utilizing satellites and AI (Artificial Intelligence) from the design stage and internalizing end-to-end AI support functions, and next-generation distributed computing technology for implementing services at levels of complexity exceeding the limit of UE operation capability by utilizing ultra-high-performance communication and computing resources.
  • FD-MIMO Full Dimensional MIMO
  • OAM Organic Angular Momentum
  • RIS Reconfigurable Intelligent Surface
  • 5G or pre-5G communication systems are also called “Beyond 4G networks” or “Post-LTE systems”.
  • 5G communication systems are implemented in higher frequency (mmWave) bands, e.g., 60 GHz bands to achieve a higher data rate.
  • mmWave e.g., 60 GHz bands
  • technologies such as beamforming, massive multiple-input multiple-output (MIMO), full-dimensional MIMO (FD-MIMO), array antenna, analog beamforming and large-scale antenna are discussed in 5G communication systems.
  • FQAM FSK and QAM modulation
  • SWSC sliding window superposition coding
  • ACM advanced coding modulation
  • FBMC filter bank multicarrier
  • NOMA non-orthogonal multiple access
  • SCMA sparse code multiple access
  • the wireless communication system can use a new wake up signal (for example, it can be called a Low Power Wake Up Signal (LPWUS)) to wake up the UE.
  • a new wake up signal for example, it can be called a Low Power Wake Up Signal (LPWUS)
  • LPFUS Low Power Wake Up Signal
  • the structure, function, configuration and/or monitoring method of the wake up signal are problems to be solved.
  • a method performed by a user equipment (UE) in a communication system including: monitoring a wake up signal; waking up the UE after the wake up signal is monitored, wherein the wake up signal comprises a first wake up signal and/or a second wake up signal, the first wake up signal comprises a first synchronization signal for a cell, or comprises the first synchronization signal for the cell and a first data signal, the second wake up signal comprises a second synchronization signal for the cell and/or a second data signal for a UE group.
  • the wake up signal comprises a first wake up signal and/or a second wake up signal
  • the first wake up signal comprises a first synchronization signal for a cell, or comprises the first synchronization signal for the cell and a first data signal
  • the second wake up signal comprises a second synchronization signal for the cell and/or a second data signal for a UE group.
  • the UE monitors the first data signal on a first time unit configured by a base station after the first synchronization signal is monitored.
  • monitoring of the wake up signal comprises: monitoring the second data signal according to a third cycle configured by a base station.
  • the first synchronization signal is further for indicating first information
  • the second synchronization signal is further for indicating the first information
  • the first data signal is further for indicating the first information
  • the first data signal comprises the first information; wherein the first information comprises at least one of the followings:
  • a cycle for the first wake up signal is determined by at least one of the followings: determined based on at least one first cycle configured by a base station; determined based on a modification cycle of the first information; determined based on a cycle of a paging occasion PO or a discontinuous reception DRX cycle; configured by a core network.
  • the at least one first cycle comprises at least one of 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms, 640ms and 1280ms.
  • the cycle for the first wake up signal is one of the at least one first cycle indicated by the SIB.
  • a cycle for the second synchronization signal is determined by at least one of the followings: determined based on at least one second cycle configured by a base station; determined based on a cycle of a synchronization signal and physical broadcast channel PBCH block SSB; determined based on a cycle of a PO or a DRX cycle; configured by a core network.
  • the at least one second cycle comprises at least one of 1.25ms, 2.5ms, 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms.
  • the cycle for the second synchronization signal is one of the at least one second cycle indicated by an SIB.
  • the method according to an embodiment of the disclosure further comprises: waking up the UE to receive an SSB and/or receive a paging message if the UE does not receive the second synchronization signal within a first time period, wherein a number of time units corresponding to the first time period is configured by a base station or reported to the base station by the UE.
  • the second data signal comprises part or all of a paging message.
  • the second data signal comprises at least one of the followings:
  • the information about the wake up signal in the next cycle comprises a field size of the wake up signal in the next cycle and/or information indicating whether one or more fields exist in the next cycle.
  • a cycle for the first wake up signal is greater than or equal to a cycle for the second wake up signal.
  • a frequency domain resource location of the wake up signal is determined by at least one of the followings: determined based on a Point A and a first offset, wherein the point A is obtain by an SSB subcarrier offset and an offset from the Point A OffsetToPointA; a frequency domain starting location of the wake up signal being determined according to a frequency domain location of an SSB; determined according to a frequency band where a PO is located; determined according to a frequency location of search space used for PO monitoring ; determined by blind detection in a global synchronization channel.
  • a subcarrier space of the wake up signal is at least one of the followings: a subcarrier space indicated by a base station through system information; a first subcarrier space corresponding to frequency domain range 1; a second subcarrier space corresponding to frequency range 2; a third subcarrier space corresponding to frequency domain range 1; a fourth subcarrier space corresponding to frequency range 2; a subcarrier space configured according to a subcarrier space of initial downlink bandwidth part BWP or SSB or CORESET0, wherein the first subcarrier space and the second subcarrier space are both greater than or equal to a first threshold, wherein the third subcarrier space and the fourth subcarrier space are both smaller than a second threshold.
  • the wake up signal is modulated based on M-bit frequency shift keying FSK
  • carrier frequencies of the M-bit FSK are determined by at least one of the followings: determined according to a central carrier frequency of a frequency band configured by the UE; determined according to a first bandwidth and a first starting frequency domain location of the wake up signal; wherein an interval between adjacent carrier frequencies among the carrier frequencies of the M-bit FSK is greater than or equal to a first threshold value, wherein the first bandwidth, M, the first starting frequency domain location and the first threshold value are reported by the UE or configured by a base station.
  • the method according to an embodiment of the disclosure further comprises: reporting a modulation mode supported by the UE for the wake up signal to a base station; and receiving a modulation mode for the wake up signal indicated by the base station through an SIB, the monitoring of the wake up signal comprises monitoring the wake up signal based on the indicated modulation mode.
  • a method performed by a base station in a communication system comprising: transmitting a wake up signal to a UE, wherein the wake up signal is for waking up the UE; transmitting a signal and/or channel to the UE and/or receiving a signal and/or channel from the UE, wherein the wake up signal comprises a first wake up signal and/or a second wake up signal, the first wake up signal comprises a first synchronization signal for a cell, or comprises the first synchronization signal for the cell and a first data signal, the second wake up signal comprises a second synchronization signal for the cell and/or a second data signal for a UE group.
  • the base station transmits the first data signal on a first time unit after the first synchronization signal.
  • the first synchronization signal is further for indicating first information
  • the second synchronization signal is further for indicating the first information
  • the first data signal is further for indicating the first information
  • the first data signal comprises the first information; wherein the first information comprises at least one of the followings:
  • a cycle for the first wake up signal is determined by at least one of the followings: determined based on at least one first cycle configured by a base station; determined based on a modification cycle of the first information; determined based on a cycle of a paging occasion PO or a discontinuous reception DRX cycle; configured by a core network.
  • the at least one first cycle comprises at least one of 5ms, 10ms, 20ms, 40ms, 80ms, 160ms, 320ms, 640ms and 1280m.
  • the cycle for the first wake up signal is one of the at least one first cycle indicated by the SIB.
  • a cycle for the second synchronization signal is determined by at least one of the followings: determined based on at least one second cycle configured by a base station; determined based on a cycle of a synchronization signal and physical broadcast channel PBCH block SSB; determined based on a cycle of a PO or a DRX cycle; configured by a core network.
  • the at least one second cycle comprises at least one of 1.25ms, 2.5ms, 5ms, 10ms, 20ms, 40ms, 80ms, and 160ms.
  • the cycle for the second synchronization signal is one of the at least one second cycle indicated by an SIB.
  • the method according to an embodiment of the disclosure further comprises: the base station configures a number of time units, wherein the UE is waked up to receive an SSB and/or receive a paging message if the UE does not receive the second synchronization signal within a first time period corresponding to the number of time units.
  • the second data signal comprises part or all of a paging message.
  • the second data signal comprises at least one of the followings:
  • the information about the wake up signal in the next cycle comprises a field size of the wake up signal in the next cycle and/or information indicating whether one or more fields exist in the next cycle.
  • a cycle for the first wake up signal is greater than or equal to a cycle for the second wake up signal.
  • a subcarrier space of the wake up signal is at least one of the followings: a subcarrier space indicated by a base station through system information; a first subcarrier space corresponding to frequency domain range 1; a second subcarrier space corresponding to frequency range 2; a third subcarrier space corresponding to frequency domain range 1; a fourth subcarrier space corresponding to frequency range 2; a subcarrier space configured according to a subcarrier space of initial downlink bandwidth part BWP or SSB or CORESET0, wherein the first subcarrier space and the second subcarrier space are both greater than or equal to a first threshold, wherein the third subcarrier space and the fourth subcarrier space are both smaller than a second threshold.
  • the wake up signal is modulated based on M-bit frequency shift keying FSK
  • carrier frequencies of the M-bit FSK are determined by at least one of the followings: determined according to a central carrier frequency of a frequency band configured by the UE; determined according to a first bandwidth and a first starting frequency domain location of the wake up signal; wherein an interval between adjacent carrier frequencies in the carrier frequencies of the M-bit FSK is greater than or equal to a first threshold value, wherein the first bandwidth, M, the first starting frequency domain location and the first threshold value are reported by the UE or configured by a base station.
  • the method according to an embodiment of the disclosure further comprises: the base station receives a modulation mode for the wake up signal supported by the UE from the UE; and the base station indicates the modulation mode for the wake up signal to the UE through the SIB.
  • a user equipment in a communication system comprising a transceiver configured to transmit and/or receive a signal; and a processor coupled with the transceiver and configured to control to perform the method according to an embodiment of the disclosure.
  • a base station in a communication system comprising a transceiver configured to transmit and/or receive a signal; and a processor coupled with the transceiver and configured to control to perform the method according to an embodiment of the disclosure.
  • a method and device for a low power wake up signal configuration and monitoring will be introduced.
  • a method for determining the structure and function, configuration, and monitoring of the LPWUS will be introduced.
  • the LPWUS is used for an exemplary introduction, and the introduced method can also be applied for the configuration and transmission of other signals.
  • FIG. 1 illustrates an example wireless network according to various embodiments of the disclosure
  • FIG. 2a illustrates an example wireless transmission path according to the disclosure
  • FIG. 2b illustrates an example wireless reception path according to the disclosure
  • FIG. 3a illustrates an example user equipment UE according to the disclosure
  • FIG. 3b illustrates an example gNB according to the disclosure
  • FIG. 4 illustrates an example flowchart of a method performed by a UE according to an embodiment of the disclosure
  • FIG. 5 illustrates an example flowchart of a method performed by a base station according to an embodiment of the disclosure
  • FIG. 6 illustrates an example hardware block diagram of a UE according to an embodiment of the disclosure
  • FIG. 7 illustrates an example hardware block diagram of a base station according to an embodiment of the disclosure.
  • a or B may include A, may include B, or may include both A and B.
  • GSM Global System for Mobile Communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • TDD LTE time division duplex
  • UMTS universal mobile telecommunications system
  • WiMAX worldwide interoperability for microwave access
  • 5G 5th generation
  • NR new radio
  • FIG. 1 illustrates an example wireless network 100 according to various embodiments of the disclosure.
  • the embodiment of the wireless network 100 shown in FIG. 1 is for illustration only. Other embodiments of the wireless network 100 may be used without departing from the scope of the disclosure.
  • the wireless network 100 includes a gNodeB (gNB) 101, a gNB 102, and a 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 private IP network, or other data networks.
  • IP Internet Protocol
  • gNodeB base station
  • access point may be used instead of “gNodeB” or “gNB”.
  • gNodeB and gNB are used in this patent document to refer to network infrastructure components that provide wireless access for remote terminals.
  • other well-known terms such as “mobile station”, “user station”, “remote terminal”, “wireless terminal” or “user apparatus” may be used instead of “user equipment” or “UE”.
  • the terms "user equipment” and "UE” are used in this patent document to refer to remote wireless devices that wirelessly access the gNB, no matter whether the UE is a mobile device (such as a mobile phone or a smart phone) or a fixed device (such as a desktop computer or a vending machine).
  • the gNB 102 provides wireless broadband access to the network 130 for a first plurality of User Equipments (UEs) within a coverage area 120 of gNB 102.
  • the first plurality of UEs include a UE 111, which may be located in a Small Business (SB); a UE 112, which may be located in an enterprise (E); a UE 113, which may be located in a WiFi Hotspot (HS); a UE 114, which may be located in a first residence (R); a UE 115, which may be located in a second residence (R); a UE 116, which may be a mobile device (M), such as a cellular phone, a wireless laptop computer, a wireless PDA, etc.
  • M mobile device
  • GNB 103 provides wireless broadband access to network 130 for a second plurality of UEs within a coverage area 125 of gNB 103.
  • the second plurality of UEs include a UE 115 and a UE 116.
  • one or more of gNBs 101-103 may communicate with each other and with UEs 111-116 using 5G, Long Term Evolution (LTE), LTE-A, WiMAX or other advanced wireless communication technologies.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-A
  • WiMAX Worldwide Interoperability for Microwave Access
  • the dashed lines show approximate ranges of the coverage areas 120 and 125, and the ranges are shown as approximate circles merely for illustration and explanation purposes. It should be clearly understood that the coverage areas associated with the gNBs, such as the coverage areas 120 and 125, may have other shapes, including irregular shapes, depending on configurations of the gNBs and changes in the radio environment associated with natural obstacles and man-made obstacles.
  • one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the disclosure.
  • one or more of gNB 101, gNB 102, and gNB 103 support codebook designs and structures for systems with 2D antenna arrays.
  • FIGs. 2a and 2b illustrate example wireless transmission and reception paths according to the disclosure.
  • the transmission path 200 may be described as being implemented in a gNB, such as gNB 102
  • the reception path 250 may be described as being implemented in a UE, such as UE 116.
  • the reception path 250 may be implemented in a gNB and the transmission path 200 may be implemented in a UE.
  • the reception path 250 is configured to support codebook designs and structures for systems with 2D antenna arrays as described in embodiments of the disclosure.
  • the transmission path 200 includes a channel coding and modulation block 205, a Serial-to-Parallel (S-to-P) block 210, a size N 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.
  • S-to-P Serial-to-Parallel
  • IFFT Inverse Fast Fourier Transform
  • P-to-S Parallel-to-Serial
  • UC up-converter
  • the reception path 250 includes a down-converter (DC) 255, a cyclic prefix removal block 260, a Serial-to-Parallel (S-to-P) block 265, a size N Fast Fourier Transform (FFT) block 270, a Parallel-to-Serial (P-to-S) block 275, and a channel decoding and demodulation block 280.
  • DC down-converter
  • S-to-P Serial-to-Parallel
  • FFT Fast Fourier Transform
  • P-to-S Parallel-to-Serial
  • the 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.
  • coding such as Low Density Parity Check (LDPC) coding
  • QPSK Quadrature Phase Shift Keying
  • QAM Quadrature Amplitude Modulation
  • the Serial-to-P) block 210 converts (such as demultiplexes) serial modulated symbols into parallel data to generate N parallel symbol streams, where N is a size of the IFFT/FFT used in gNB 102 and UE 116.
  • the size N IFFT block 215 performs IFFT operations on the N parallel symbol streams to generate a time-domain output signal.
  • the Parallel-to-Serial block 220 converts (such as multiplexes) parallel time-domain output symbols from the Size N IFFT block 215 to generate a serial time-domain signal.
  • the cyclic prefix addition block 225 inserts a cyclic prefix into the time-domain signal.
  • the up-converter 230 modulates (such as up-converts) the output of the cyclic prefix addition block 225 to an RF frequency for transmission via a wireless channel.
  • the signal may also be filtered at a baseband before switching to the RF frequency.
  • the RF signal transmitted from gNB 102 arrives at UE 116 after passing through the wireless channel, and operations in reverse to those at gNB 102 are performed at UE 116.
  • the down-converter 255 down-converts the received signal to a baseband frequency
  • the cyclic prefix removal block 260 removes the cyclic prefix to generate a serial time-domain baseband signal.
  • the Serial-to-Parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal.
  • the Size N FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals.
  • the Parallel-to-Serial block 275 converts the parallel frequency-domain signal into a sequence of modulated data symbols.
  • the channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.
  • Each of gNBs 101-103 may implement a transmission path 200 similar to that for transmitting to UEs 111-116 in the downlink, and may implement a reception path 250 similar to that for receiving from UEs 111-116 in the uplink.
  • each of UEs 111-116 may implement a transmission path 200 for transmitting to gNBs 101-103 in the uplink, and may implement a reception path 250 for receiving from gNBs 101-103 in the downlink.
  • Each of the components in FIGs. 2a and 2b may be implemented using only hardware, or using a combination of hardware and software/firmware. As a specific example, at least some of the components in FIGs. 2a and 2b may be implemented in software, while other components may be implemented in configurable hardware or a combination of software and configurable hardware.
  • the FFT block 270 and IFFT block 215 may be implemented as configurable software algorithms, in which the value of the size N may be modified according to the implementation.
  • variable N may be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N may be any integer which is a power of 2 (such as 1, 2, 4, 8, 16, etc.).
  • FIGs. 2a and 2b illustrate examples of wireless transmission and reception paths
  • various changes may be made to FIGs. 2a and 2b.
  • various components in FIGs. 2a and 2b may be combined, further subdivided or omitted, and additional components may be added according to specific requirements.
  • FIGs. 2a and 2b are intended to illustrate examples of types of transmission and reception paths that may be used in a wireless network. Any other suitable architecture may be used to support wireless communication in a wireless network.
  • FIG. 3a illustrates an example UE 116 according to the disclosure.
  • the embodiment of UE 116 shown in FIG. 3a is for illustration only, and UEs 111-115 of FIG. 1 may have the same or similar configuration.
  • a UE has various configurations, and FIG. 3a does not limit the scope of the disclosure to any specific implementation of the UE.
  • UE 116 includes an antenna 305, a radio frequency (RF) transceiver 310, a transmission (TX) processing circuit 315, a microphone 320, and a reception (RX) processing circuit 325.
  • UE 116 also includes a speaker 330, a processor/controller 340, an input/output (I/O) interface 345, an input device(s) 350, a display 355, and a memory 360.
  • the memory 360 includes an operating system (OS) 361 and one or more applications 362.
  • OS operating system
  • applications 362 one or more applications
  • the RF transceiver 310 receives an incoming RF signal transmitted by a gNB of the wireless network 100 from the antenna 305.
  • the RF transceiver 310 down-converts the incoming RF signal to generate an intermediate frequency (IF) or baseband signal.
  • the IF or baseband signal is transmitted to the RX processing circuit 325, where the RX processing circuit 325 generates a processed baseband signal by filtering, decoding and/or digitizing the baseband or IF signal.
  • the RX processing circuit 325 transmits the processed baseband signal to speaker 330 (such as for voice data) or to processor/controller 340 for further processing (such as for web browsing data).
  • the TX processing circuit 315 receives analog or digital voice data from microphone 320 or other outgoing baseband data (such as network data, email or interactivated video game data) from processor/controller 340.
  • the TX processing circuit 315 encodes, multiplexes, and/or digitizes the outgoing baseband data to generate a processed baseband or IF signal.
  • the RF transceiver 310 receives the outgoing processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal into an RF signal transmitted via the antenna 305.
  • the processor/controller 340 may include one or more processors or other processing devices and perform an OS 361 stored in the memory 360 in order to control the overall operation of UE 116.
  • the processor/controller 340 may control the reception of forward channel signals and the transmission of backward channel signals through the RF transceiver 310, the RX processing circuit 325 and the TX processing circuit 315 according to well-known principles.
  • the processor/controller 340 includes at least one microprocessor or microcontroller.
  • the processor/controller 340 is also capable of executing other processes and programs residing in the memory 360, such as operations for channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the disclosure.
  • the processor/controller 340 may move data into or out of the memory 360 as required by an execution process.
  • the processor/controller 340 is configured to perform the application 362 based on the OS 361 or in response to signals received from the gNB or the operator.
  • the processor/controller 340 is also coupled to an I/O interface 345, where the I/O interface 345 provides UE 116 with the ability to connect to other devices such as laptop computers and handheld computers. I/O interface 345 is a communication path between these accessories and the processor/controller 340.
  • the processor/controller 340 is also coupled to the input device(s) 350 and the display 355.
  • An operator of UE 116 may input data into UE 116 using the input device(s) 350.
  • the display 355 may be a liquid crystal display or other display capable of presenting text and/or at least limited graphics (such as from a website).
  • the memory 360 is coupled to the processor/controller 340. A part of the memory 360 may include a random access memory (RAM), while another part of the memory 360 may include a flash memory or other read-only memory (ROM).
  • RAM random access memory
  • ROM read-only memory
  • FIG. 3b illustrates an example gNB 102 according to the disclosure.
  • the embodiment of gNB 102 shown in FIG. 3b is for illustration only, and other gNBs of FIG. 1 may have the same or similar configuration.
  • a gNB has various configurations, and FIG. 3b does not limit the scope of the disclosure to any specific implementation of a gNB.
  • gNB 101 and gNB 103 may include the same or similar structures as gNB 102.
  • the controller/processor 378 may include one or more processors or other processing devices that control the overall operation of gNB 102.
  • the controller/processor 378 may control the reception of forward channel signals and the transmission of backward channel signals through the RF transceivers 372A-372n, the RX processing circuit 376 and the TX processing circuit 374 according to well-known principles.
  • the controller/processor 378 may also support additional functions, such as higher-level wireless communication functions.
  • the controller/processor 378 may perform a Blind Interference Sensing (BIS) process such as that performed through a BIS algorithm, and decode a received signal from which an interference signal is subtracted.
  • a controller/processor 378 may support any of a variety of other functions in gNB 102.
  • the controller/processor 378 includes at least one microprocessor or microcontroller.
  • the controller/processor 378 is also capable of executing programs and other processes residing in the memory 380, such as a basic OS.
  • the controller/processor 378 may also support channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the disclosure.
  • the controller/processor 378 supports communication between entities such as web RTCs.
  • the controller/processor 378 may move data into or out of the memory 380 as required by an execution process.
  • the controller/processor 378 is also coupled to the backhaul or network interface 382.
  • the backhaul or network interface 382 allows gNB 102 to communicate with other devices or systems through a backhaul connection or through a network.
  • the backhaul or network interface 382 may support communication over any suitable wired or wireless connection(s).
  • gNB 102 is implemented as a part of a cellular communication system, such as a cellular communication system supporting 5G or new radio access technology or NR, LTE or LTE-A
  • the backhaul or network interface 382 may allow gNB 102 to communicate with other gNBs through wired or wireless backhaul connections.
  • the backhaul or network interface 382 may allow gNB 102 to communicate with a larger network, such as the Internet, through a wired or wireless local area network or through a wired or wireless connection.
  • the backhaul or network interface 382 includes any suitable structure that supports communication through a wired or wireless connection, such as an Ethernet or an RF transceiver.
  • the transmission and reception paths of gNB 102 (implemented using RF transceivers 372A-372n, TX processing circuit 374 and/or RX processing circuit 376) support aggregated communication with FDD cells and TDD cells.
  • FIG. 3b illustrates an example of gNB 102
  • gNB 102 may include any number of each component shown in FIG. 3a.
  • the access point may include many backhaul or network interfaces 382, and the controller/processor 378 may support routing functions to route data between different network addresses.
  • gNB 102 may include multiple instances of each (such as one for each RF transceiver).
  • a time domain unit (also called a time unit) in the application may be: an OFDM symbol, an OFDM symbol group (composed of multiple OFDM symbols), a time slot, a time slot group (composed of multiple time slots), a subframe, a subframe group (composed of multiple subframes), a system frame and a system frame group (composed of multiple system frames); it may also be an absolute time unit, such as 1 millisecond, 1 second, etc.; the time unit may also be a combination of various granularities, such as N1 time slots plus N2 OFDM symbols.
  • a frequency domain unit (also called a frequency unit) in the application may 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 may also be an absolute frequency domain unit, such as 1 Hz, 1 kHz, etc.; the frequency domain unit may also be a combination of multiple granularities, such as M1 PRBs plus M2 subcarriers.
  • Transmission links of a wireless communication system mainly includes: a downlink communication link from a 5G New Radio (NR) gNB to a User Equipment (UE), and an uplink communication link from a UE to a network, and a sidelink communication link from a UE to a UE.
  • NR 5G New Radio
  • UE User Equipment
  • a Discontinuous Reception (DRX) mechanism is introduced, such that a UE may be in a sleep state most of the time, and only needs to be waked up periodically to monitor a Paging Occasion (PO).
  • a DRX cycle the UE only be waked up to monitor the PO during a DRX ON duration, and after a PDCCH scrambled with P-RNTI is monitored, the UE continues to read a paged terminal identifier in a paging message, the UE further reads the paging message if the read terminal identifier is the same as its own identifier, otherwise discards the paging message.
  • a paging early indication (PEI) signal is introduced to indicate whether the UE needs to monitor the corresponding PO. If PEI configuration is provided in system information , the UE can monitor one PEI occasion perDRX cycle, if the UE detects PEI indication and the PEI indicates the UE to monitor its associated PO, the UE should wake up at the next PO to monitor the PO; otherwise, the UE is not required to wake up to monitor the PO.
  • PEI paging early indication
  • each DRX cycle includes an Active Time and a Non-active Time
  • the UE needs to monitor PDCCH, while in the Non-active Time, the UE does not need to monitor the PDCCH, UE starts a drx-onDurationTimer (DRX ON duration timer) at the beginning of each DRX cycle to start PDCCH monitoring , in the transmission process, if the UE monitors Downlink Control Information (DCI) for scheduling new data transmission, the UE starts a drx-inactivityTimer (DRX inactivity timer).
  • DCI Downlink Control Information
  • DRX inactivity timer a base station can signal the UE to enter the DRX Non-active Time in advance, or when all the DRX timers of the UE stop running, the UE can enter the DRX Non-active Time.
  • the wireless communication system can use a new wake up signal (for example, it can be called a Low Power Wake Up Signal (LPWUS)) to wake up the UE.
  • a new wake up signal for example, it can be called a Low Power Wake Up Signal (LPWUS)
  • LPFUS Low Power Wake Up Signal
  • the structure, function, configuration and/or monitoring method of the wake up signal are problems to be solved.
  • a method and device for a low power wake up signal configuration and monitoring will be introduced.
  • a method for determining the structure and function, configuration, and monitoring of the LPWUS will be introduced.
  • the LPWUS is used for an exemplary introduction, and the introduced method can also be applied for the configuration and transmission of other signals.
  • a receiver of a UE may include two modules, one is a module for receiving a conventional signal/channel transmitted by a base station, for example, a primary communication receiver (PCR); and the other is a module for receiving the LPWUS transmitted by the base station, for example, a lower power wake up signal receiver (LPWUR).
  • PCR primary communication receiver
  • LPWUR lower power wake up signal receiver
  • ASK amplitude shift keying
  • FSK frequency shift keying
  • the LPWUR may monitor the LPWUS with extremely low power.
  • the LPWUR may trigger the primary communication receiver (PCR) to switch from dormant time to Active Time, so that specific operations may be performed.
  • PCR primary communication receiver
  • OOK on-off keying
  • ASK amplitude shift keying
  • the wake up signal may include a first wake up signal and/or a second wake up signal.
  • the first wake up signal may include a first synchronization signal, or the first wake up signal may include the first synchronization signal and a first data signal.
  • the first synchronization signal and the first data signal are configured together by the base station, or it may be understood that there is a correlation between the first synchronization signal and the first data signal, for example, the corresponding first data signal may be transmitted after the first synchronization signal. Or, the first synchronization signal may be transmitted together with the first data signal.
  • the first wake up signal may be used to wake up all UEs in a cell to receive specific information (for example, "first information" described below) for all users in the cell.
  • the second wake up signal may include a second synchronization signal and/or a second data signal, wherein the second synchronization signal and the second data signal are respectively configured at the base station (or may be called being separately configured).
  • the second synchronization signal may be used for synchronization of all users in the cell.
  • the second data signal may include information of a specific UE or a specific UE group, and the second data signal may wake up the primary communication receiver of the specific UE or UE group to receive data or signals.
  • the first synchronization signal and the first data signal are called low power synchronization signal-1 (LP-SS-1) and low power wake up data signal-1 (WUS-data-1) respectively
  • the second synchronization signal and the second data signal are called low power synchronization signal-2 (LP-SS-2) and low power wake up data signal-2 (WUS-data-2) respectively.
  • the first wake up signal is exemplarily called “common LPWUS” and the second wake up signal is exemplarily described as “separately configured low power synchronization signal-2 (LP-SS-2) and low power wake up data signal-2 (WUS-data-2)” or “low power synchronization signal-2 (LP-SS-2) and low power wake up data signal-2 (WUS-data-2)".
  • the LPWUS may be a common LPWUS, or it may be composed of two signals, namely, a low power synchronization signal-2 (LP-SS-2) and a low power wake up data signal-2 (WUS-data-2), which are separately configured.
  • LP-SS-2 low power synchronization signal-2
  • WUS-data-2 low power wake up data signal-2
  • the common LPWUS may be a low power synchronization signal-1 (LP-SS-1), or it may include two parts, commonly configured LP-SS-1 and low power wake up data signal-1 (WUS-data-1). For example, transmitting the corresponding WUS-data-1 after LP-SS-1 may be used to wake up all users in a cell, and users may obtain first information for all users in the cell through the common LPWUS.
  • the first information may include at least one of the followings:
  • RAN tracking area/radio access network
  • the indication method of the first information may include one or more of the followings:
  • the cycle of the common LPWUS is configured according to the cycle of the paging occasion PO or the DRX cycle, for example, is determined by the cycle of the paging occasion PO or the DRX cycle adding an offset.
  • the cycle of the common LPWUS may be consistent with the cycle of the paging occasion PO or the DRX cycle, that is, may equal to the cycle of the paging occasion PO or the DRX cycle.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station.
  • the method for the UE to monitor the common LPWUS may include one or a combination of the followings:
  • the UE may only monitor the common LPWUS transmitted within a predefined or preconfigured time unit before a WUS-data-1 monitoring occasion to receive the first information.
  • the WUS-data-1 monitoring occasion may be configured according to the cycle of the paging occasion PO or the DRX cycle, that is, is determined by the cycle of the paging occasion PO or the DRX cycle adding an offset.
  • the cycle of the WUS-data-1 monitoring occasion may be consistent with the cycle of the paging occasion PO or the DRX cycle, that is, may equal to the cycle of the paging occasion PO or the DRX cycle.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station;
  • the LPWUS may be composed of two separately configured signals, namely, a low power synchronization signal (LP-SS-2) and a low power wake up data signal (WUS-data-2), wherein the LP-SS-2 may be a cell-specific low power synchronization signal, that is, all users in the cell need to receive the LP-SS-2 to perform downlink synchronization process.
  • the UE Under the condition of keeping the UE synchronized with the network, after the low power wake up data signal is received by the UE, the UE performs corresponding operations, such as waking up the primary communication receiver of the UE to receive data or signals, or transmitting data or signals, or directly establishing RRC connection.
  • the UE may receive LP-SS-2 for downlink synchronization and/or RRM measurement, and not receive the synchronization signal and physical broadcast channel (PBCH) block (SSB).
  • PBCH physical broadcast channel
  • the LP-SS-2 may be a primary synchronization signal and/or a secondary synchronization signal, or a non-cell defined SSB (NCD-SSB) or a simplified SSB (Light SSB).
  • NCD-SSB non-cell defined SSB
  • SSB Light SSB
  • the LP-SS-2 may also be composed of a (pre)defined physical signal sequence or one of a plurality of (pre)defined physical signal sequences, and the network side (e.g., the base station) may select a sequence from the plurality of (pre)defined physical signal sequences and configure it as a signal sequence of LP-SS-2, for example, the signal sequence may be indicated by system information, such as indicated by SIB message.
  • the generated sequence of the LP-SS-2 may be one or more new M-sequences.
  • the first information may be contained by the physical signal sequence used by the LP-SS-2.
  • the LP-SS-2 may have the same sequence generation method as the primary synchronization signal and/or the secondary synchronization signal.
  • the LP-SS-2 may further reduce power consumption of the UE by amplitude shift keying (ASK) modulation and/or frequency shift keying (FSK) modulation. At this time, the sequence used for modulation may be preconfigured.
  • ASK amplitude shift key
  • the configuration method of the LP-SS-2 cycle may include one or more of the followings:
  • the cycle of the LP-SS-2 may be configured separately, that is, the base station may select and indicate a cycle from preconfigured cycles of the LP-SS-2, and the preconfigured cycles of LP-SS-2 may include but not be limited to at least one of the followings: 1.25ms, 2.5ms, 5ms, 10ms, 20ms, 40ms, 80ms and 160ms.
  • the LP-SS-2 may be configured with shorter cycles, such as 1.25ms, 2.5ms and 5ms, at this time, the UE may complete the downlink synchronization process in shorter time.
  • the cycle of the LP-SS-2 may be indicated by system information, such as SIB;
  • the cycle of the LP-SS-2 is configured according to the cycle of SSB, for example, is determined by the cycle of SSB adding an offset.
  • the cycle of the LP-SS-2 may be the same as the cycle of SSB, that is, may equal to the cycle of SSB.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station.
  • the cycle of the LP-SS-2 is configured according to the cycle of the paging occasion PO or the DRX cycle, for example, is determined by the cycle of the paging occasion PO or the DRX cycle adding an offset.
  • the cycle of the LP-SS-2 may be consistent with the cycle of the paging occasion PO or the DRX cycle, that is, may equal to the cycle of the paging occasion PO or the DRX cycle.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station.
  • o the cycle of the LP-SS-2 is configured by the core network.
  • the cycle of the common LPWUS is greater than or equal to the cycles of the LP-SS-2 and the WUS-data-2.
  • the UE may only monitor the LP-SS-2 transmitted in a predefined or preconfigured time unit before the WUS-data-2 monitoring occasion, and complete the downlink synchronization process to reduce power loss caused by the UE's continuous monitoring of the synchronization signal.
  • the cycle of the WUS-data-2 monitoring occasion may be determined by the cycle of the paging occasion PO or the DRX cycle adding an offset, and optionally, the cycle of the WUS-data-2 monitoring occasion may be consistent with the cycle of the paging occasion PO or the DRX cycle, that is, may equal to the cycle of the paging occasion PO or the DRX cycle.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station.
  • the PCR of the UE is waked up after the D time units, and the behavior of the UE may include one or a combination of the followings:
  • the UE may re-receive SSB considering the higher synchronization accuracy of SSB;
  • the D time units may be a parameter value reported by the user equipment UE according to its own processing capacity and/or a parameter value configured by the base station and received by the UE and/or a preconfigured parameter value and/or a predefined parameter value.
  • D is a real number greater than 0.
  • the WUS-data-2 may transmit all or part of the paging message of the UE.
  • all or part of the paging message that may be transmitted in the WUS-data-2 may include but not limited to at least one of the followings:
  • PagingRecordList contains ue-Identity and/or accessType.
  • ue-Identity may uniquely specify a UE, including S-TMSI and/or I-RNTI, wherein S-TMSI is a temporary UE identification number and I-RNTI is used for identification of the identity information of a terminal device and identification of the identity information of a serving base station.
  • S-TMSI is a temporary UE identification number
  • I-RNTI is used for identification of the identity information of a terminal device and identification of the identity information of a serving base station.
  • RRC_INACTIVE and/or RRC_IDLE state reads the information in pagingRecordList;
  • pagingRecordList-v1700 is the sequence of PagingRecord-v1700
  • pagingGroupList-r17 is the sequence of temporary group identifier TMGI-r17
  • systemInfoModification indicating the update of broadcast channel messages except for SIB6, SIB7 and SIB8 if set to 1;
  • etwsAndCmasIndication indicating earthquake and tsunami warning system (ETWS) primary notification and/or ETWS secondary notification and/or commercial mobile alarm service (CMAS) notification if set to 1;
  • o stop paging monitoring stopPagingMonitoring indication indicating the UE to stop monitoring the physical downlink control channel (PDCCH) transmission occasion paged in the PO if set to 1;
  • the method for the UE to determine a frequency domain resource location of common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS may include one or a combination of the followings:
  • o the frequency domain resource location of the LPWUS may be calculated from a Point A calculated from the SSB subcarrier offset carried by main information block and the offset from the Point A OffsetToPointA and a predefined or preconfigured offset, the granularity of the predefined or preconfigured offset is a subcarrier or a physical resource block (PRB);
  • PRB physical resource block
  • the UE may obtain a frequency domain starting location of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS through a frequency domain location of the SSB, and frequency domain starting location of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS may be determined by the frequency domain location of the SSB adding an offset.
  • the frequency domain location of the SSB may be the central frequency domain location of the SSB or the initial subcarrier of the SSB.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station.
  • the frequency domain resource location may correspond to a global synchronization channel number one-by-one, that is, there is a unique frequency domain location within each global synchronization channel, and the UE may determine the frequency domain location of the LP-SS-2 by blind detection.
  • the configuration method of the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS may include one or more of the followings:
  • o the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS is configured separately, and the subcarrier space of the currently configured LPWUS is indicated by the base station through system information, such as SIB;
  • the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS is fixed to G1
  • the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS is fixed to G2
  • G1 and G2 are predefined parameter values or parameter values (pre)configured by the base station, and G1 and G2 are greater than or equal to a first threshold (for example, 244), and optionally, G1 and G2 may be 480kHz, 960 kHz;
  • the existence of CP will cause reception error of the LPWUS in time domain.
  • the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS is fixed to G3, and in frequency range 2 (FR2), the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS is fixed to G4, where G3 and G4 are predefined parameter values or parameter values (pre)configured by the base station, and G3 and G4 are less than a second threshold (for example, 1.875 k
  • o the subcarrier space of the common LPWUS and/or the low power synchronization signal-2 (LP-SS-2) and/or the low power wake up data signal-2 (WUS-data-2) in the LPWUS is configured according to the subcarrier space of initial downlink bandwidth part (BWP) or SSB or CORESET0, for example, is consistent with the subcarrier space of the initial downlink bandwidth part (BWP) or SSB or CORESET0, that is, may equal to the subcarrier space of the initial downlink Bandwidth part (BWP) or SSB or CORESET0;
  • the UE may support a variety of LPWUS reception methods, for example, when the UE has the capacity to receive and demodulate amplitude shift keying and/or frequency shift keying LPWUS signals, the UE may report all supported LPWUS modulation modes to the base station, and the base station indicates which LPWUS modulation mode to use, and the adopted LPWUS modulation mode may be indicated by system information, such as SIB.
  • SIB system information
  • the carrier frequency configuration method of M-bit FSK may include one or combination of the followings:
  • o the carrier frequencies may be determined according to the center carrier frequency of the current frequency band, and optionally, may be determined by the center carrier frequency of the current frequency band adding an offset.
  • the offset may be a predefined parameter value or a parameter value (pre)configured by the base station.
  • the carrier frequency may be determined according to the bandwidth of the LPWUS and a first frequency domain location. For example, within the bandwidth B of the LPWUS, starting from the Lth frequency domain unit, with the B-L frequency domain units as the cut-off frequency location, in frequency range from L to B-L, the corresponding carrier frequency is selected every (B-2*L)/(M-1) frequency band for frequency shift keying modulation of the LPWUS;
  • the interval between two adjacent carrier frequencies should not be less than a threshold value T;
  • B, M bits, L frequency domain units and the threshold value T may be parameter values reported by the user equipment UE according to its own processing capability and/or parameter values configured by the base station and received by the UE and/or a preconfigured parameter value.
  • B, M, L and T are real numbers greater than 0.
  • FIG. 4 illustrates an example flowchart of a method 400 performed by a UE according to an embodiment of the disclosure.
  • the method 400 includes the following steps:
  • Step 401 the UE monitors a wake up signal
  • Step 402 wake up the UE after the wake up signal is monitored by the UE.
  • the wake up signal includes a first wake up signal and/or a second wake up signal, wherein the first wake up signal includes a first synchronization signal for a cell or a first synchronization signal for the cell and a first data signal, and the second wake up signal includes a second synchronization signal for the cell and/or a second data signal for a UE group.
  • FIG. 5 illustrates an example flowchart of a method 500 performed by a base station according to an embodiment of the disclosure.
  • the method 500 includes the following steps:
  • Step 501 the base station transmits a wake up signal to a UE, and the wake up signal is used to wake up the UE;
  • Step 502 the base station transmits a signal and/or a channel to the UE and/or receives a signal and/or a channel from the UE.
  • the wake up signal includes a first wake up signal and/or a second wake up signal, wherein the first wake up signal includes a first synchronization signal for a cell or a first synchronization signal for the cell and a first data signal, and the second wake up signal includes a second synchronization signal for the cell and/or a second data signal for a UE group.
  • FIG. 6 illustrates an example hardware block diagram of a UE 600 according to an embodiment of the disclosure.
  • the UE 600 may include a transceiver 601 and a processor 602, wherein the processor may also be called a controller and the like.
  • the transceiver 601 may be configured to transmit and/or receive a signal.
  • the processor 602 may be an application specific integrated circuit or at least one processor.
  • the processor 602 may be configured to control the overall operation of the UE and control the UE to implement the method proposed in the embodiments of the disclosure.
  • FIG. 7 illustrates an example hardware block diagram of a base station 700 according to an embodiment of the disclosure.
  • the base station 700 may include a transceiver 701 and a processor 702, wherein the processor may also be a controller or the like.
  • the transceiver 701 may be configured to transmit and/or receive a signal.
  • the processor 702 may be an application specific integrated circuit or at least one processor.
  • the processor 702 may be configured to control the overall operation of the base station and control the base station to implement the method proposed in the embodiments of the disclosure.
  • DSP Digital Signal Processor
  • ASIC application specific integrated circuit
  • FPGA Field Programmable Gate Array
  • a general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine.
  • a processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors cooperating with a DSP core, or any other such configuration.
  • a software module may reside in a RAM memory, a flash memory, a ROM memory, a EPROM memory, a EEPROM memory, a register, a hard disk, a removable disk, or any other form of storage media known in the art.
  • An exemplary storage medium is coupled to a processor to enable the processor to read and write information from/to the storage medium.
  • the storage medium may be integrated into the processor.
  • the processor and storage medium may reside in an ASIC.
  • the ASIC may reside in a user terminal.
  • the processor and the storage medium may reside as separate components in the user terminal.
  • the functions may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, each function may be stored on or transferred by computer-readable medium as one or more instructions or codes.
  • Computer-readable media includes both computer storage media and communication media, and the latter includes any media that facilitates the transfer of computer programs from one place to another.
  • the storage medium may be any available medium that may be accessed by a general-purpose or special-purpose computer.

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  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Environmental & Geological Engineering (AREA)
  • Public Health (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Telephonic Communication Services (AREA)
  • Communication Control (AREA)

Abstract

La divulgation concerne un système de communication 5G ou 6G permettant de prendre en charge un débit supérieur de transmission de données. La divulgation propose un procédé mis en œuvre par un équipement utilisateur (UE) dans un système de communication, comprenant : la surveillance d'un signal de réveil ; le réveil de l'UE après la surveillance du signal de réveil, le signal de réveil comprenant un premier signal de réveil et/ou un second signal de réveil, le premier signal de réveil comprenant un premier signal de synchronisation pour une cellule, ou comprenant le premier signal de synchronisation pour la cellule et un premier signal de données, le second signal de réveil comprenant un second signal de synchronisation pour la cellule et/ou un second signal de données pour un groupe d'UE.
EP24741634.0A 2023-01-10 2024-01-05 Procédé de communication et dispositif de communication Pending EP4631294A4 (fr)

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CN202310033028.4A CN118338397A (zh) 2023-01-10 2023-01-10 通信方法及通信设备
PCT/KR2024/000234 WO2024151012A1 (fr) 2023-01-10 2024-01-05 Procédé de communication et dispositif de communication

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EP4631294A4 EP4631294A4 (fr) 2026-04-08

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CN117939597A (zh) * 2023-11-08 2024-04-26 中兴通讯股份有限公司 信号发送方法、信息确定方法、通信节点及存储介质
WO2025051285A2 (fr) * 2024-09-14 2025-03-13 深圳传音控股股份有限公司 Procédé de traitement, dispositif de communication et support d'enregistrement

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EP4631294A4 (fr) 2026-04-08
CN118338397A (zh) 2024-07-12

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