WO2023116441A1 - Procédé et appareil de communication, dispositif et support de stockage - Google Patents

Procédé et appareil de communication, dispositif et support de stockage Download PDF

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Publication number
WO2023116441A1
WO2023116441A1 PCT/CN2022/137343 CN2022137343W WO2023116441A1 WO 2023116441 A1 WO2023116441 A1 WO 2023116441A1 CN 2022137343 W CN2022137343 W CN 2022137343W WO 2023116441 A1 WO2023116441 A1 WO 2023116441A1
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WIPO (PCT)
Prior art keywords
frequency domain
resource
terminal device
domain resource
signal
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PCT/CN2022/137343
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English (en)
Chinese (zh)
Inventor
罗之虎
吴毅凌
金哲
曲韦霖
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华为技术有限公司
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Publication of WO2023116441A1 publication Critical patent/WO2023116441A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits
    • 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
    • H04L27/12—Modulator circuits; Transmitter circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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 application relates to the technical field of communication, and in particular, to a communication method, device, device and storage medium.
  • MTC machine-type communication
  • IoT Internet of Things
  • WUR wake-up receiver or wake-up radio
  • the embodiment of the present application provides a communication method, device, device, and storage medium, in order to solve the configuration of frequency domain resources for terminal equipment applying WUR technology, so that terminal equipment applying WUR technology can transmit and wake up on certain frequency domain resources. Signal.
  • an embodiment of the present application provides a communication method, the method includes: a first terminal device receives first resource indication information from a network device, where the first resource indication information is used to indicate at least one first frequency domain resource ; The first terminal device receives a first signal on the first frequency domain resource, where the first signal is used to wake up the first terminal device.
  • the first terminal device can determine the first frequency domain resource used to carry the first signal by receiving the first resource indication information sent by the network device, and receive the first frequency domain resource on the first frequency domain resource. Based on the first signal to wake itself up, based on this, the embodiment of the present application proposes an effective solution for how the first terminal device determines the frequency domain resource carrying the signal for waking it up, so that the first terminal device Wake-up can be realized in various communication systems (for example, NR communication systems).
  • various communication systems for example, NR communication systems
  • the first terminal device is in the first state when receiving the first resource indication information from the network device, the first terminal device is in the second state when receiving the first signal, and the first terminal device is in the second state when receiving the first signal.
  • the first state and the second state correspond to different power states.
  • the first terminal device is in the first state when receiving the first resource indication information, and is in the second state when receiving the first signal, so as to prevent the first terminal device from always being in the second state, As a result, the power consumption of the first terminal device is large.
  • the first terminal device receiving the first resource indication information from the network device includes: the first terminal device receiving the first resource indication information from the network device through a main receiver.
  • the first terminal device can receive the first resource indication information through the main receiver, so as to determine the first frequency domain resource carrying the first signal, so that the first terminal device can The first signal is received on the resource to wake up the first terminal device, or in other words, wake up the main receiver of the first terminal device.
  • the first terminal device receiving the first signal on the first frequency domain resource includes: the first terminal device receiving the first signal on the first frequency domain resource by waking up a receiver. Signal.
  • the first terminal device in the dormant state, can receive the first signal on the first frequency domain resource by waking up the receiver, so as to wake up the first terminal device, or to achieve A wake-up of the main receiver of a terminal device saves power consumption of the first terminal device.
  • the modulation manner of the first signal is on-off keying OOK modulation or frequency shift keying FSK modulation.
  • the information bits of the first signal are modulated into OOK or FSK symbols, and the first terminal device does not need channel equalization in the frequency domain and usage when receiving the first signal. Therefore, the first terminal The device can listen through non-coherent detection (such as envelope detection) without maintaining or tracking the high-precision oscillation rate, and avoiding the phase-locked loop can further reduce the power consumption of the receiving side.
  • non-coherent detection such as envelope detection
  • the at least one first frequency domain resource is in one-to-one correspondence with at least one first frequency domain unit of the second frequency domain resource
  • the second frequency domain resource includes a plurality of frequency domain units
  • the plurality of frequency domain units The bandwidth of each frequency domain unit in the frequency domain units is predefined, and the multiple frequency domain units include the at least one first frequency domain unit.
  • one first frequency domain resource corresponds to one first frequency domain unit in the second frequency domain resource, that is, the first frequency domain resource and the first frequency domain unit of the second frequency domain resource
  • the network device can indicate the first frequency domain resource by indicating the first frequency domain unit from the second frequency domain resource.
  • the first resource indication information is used to indicate the at least one first frequency domain unit.
  • the network device may indicate at least one first frequency domain unit in the second frequency domain resource through the first resource indication information, so as to implement indication of the at least one first frequency domain resource.
  • the first resource indication information includes at least one piece of first indication information, where the first indication information is used to indicate an identifier of the first frequency domain unit.
  • the network device can indicate the identity of the first frequency domain unit to the first terminal device through the first resource indication information, and the first terminal device can determine the A first frequency domain resource of a signal.
  • the first resource indication information includes a first bitmap, bits in the first bitmap correspond to the multiple frequency domain units one-to-one, and bits in the first bitmap are used to indicate Whether the corresponding frequency domain unit is the first frequency domain unit.
  • the network device indicates at least one first frequency domain unit through the first bitmap, so as to realize the indication of at least one first frequency domain resource, which is more suitable for the need for multiple first frequency domain
  • the unit indicates, when multiple first frequency domain resources are indicated through the first bitmap, signaling overhead is saved compared to indicating the identifier of the first frequency domain unit.
  • the first frequency domain resource corresponding to the first frequency domain unit may be the frequency domain resource for actually transmitting the first signal, that is, For the first signal, there is no need to determine a first frequency domain resource from multiple first frequency domain resources to transmit the first signal.
  • the multiple frequency domain units are obtained by dividing the second frequency domain resource according to the preset bandwidth starting from the first frequency domain position, and the first frequency domain position is the The starting position of the second frequency domain resource, or the first frequency domain position does not belong to the second frequency domain resource, and the second frequency domain resource is a frequency domain resource corresponding to the transmission bandwidth of the first terminal device.
  • the first frequency domain position is a public reference point.
  • the second frequency domain resource is divided according to the preset bandwidth.
  • the second frequency domain resource of different terminal devices is divided
  • the multiple frequency domain units obtained by division may be different; starting from the first frequency domain position that does not belong to the second frequency domain resource, the second frequency domain resource is divided according to the preset bandwidth, and different terminal devices can be based on the same first frequency domain resource.
  • the division of frequency domain resources starts at the frequency domain location, for example, based on a common reference point.
  • the network device can sequentially send the corresponding first The signal improves the utilization rate of frequency domain resources, or can send corresponding first signals to different terminal devices on different frequency domain resources, thereby realizing frequency division multiplexing of the first frequency domain resources.
  • the first resource indication information includes at least one second indication information
  • the second indication information includes a resource indication value RIV, where the RIV is used to indicate the starting position and bandwidth.
  • the network device encodes the starting position and bandwidth of the first frequency domain resource through RIV coding, and correspondingly, the first terminal device obtains the starting position and bandwidth of the first frequency domain resource through RIV decoding.
  • the location and the bandwidth realize efficient allocation of at least one first frequency domain resource and save signaling overhead.
  • the method further includes: the first terminal device receiving transmission bandwidth indication information from the network device, where the transmission bandwidth indication information is used to indicate the transmission bandwidth corresponding to the at least one first frequency domain resource The ID of the bandwidth.
  • the network device sends transmission bandwidth indication information to the first terminal device to indicate the transmission bandwidth corresponding to the first frequency domain resource, so that the first terminal device can determine the first frequency domain resource based on the transmission bandwidth. frequency domain resources.
  • the transmission bandwidth of the first terminal device is a downlink partial bandwidth BWP or a downlink carrier bandwidth.
  • the network device can implement flexible configuration of the first frequency domain resource based on the downlink BWP or downlink carrier, increasing the usage scenarios of this solution.
  • the downlink BWP includes one of the following: a BWP corresponding to the wake-up receiver of the first terminal device; an initial downlink BWP; an activated downlink BWP; and a default downlink BWP.
  • the start position, end position or bandwidth of the first frequency domain resource is an integer multiple of a first value, and the first value is determined based on n first parameters, where n is a positive integer .
  • n is equal to 1, and the first value is the value of the first parameter; n is greater than 1, and the first value is the least common multiple or the greatest common divisor of the values of the n first parameters.
  • each resource allocation corresponds to a first parameter.
  • the resource position of the first frequency domain resource satisfies an integer multiple of the value of the first parameter, which can reduce The impact of the indicated first frequency domain resource on the resource corresponding to the first parameter; when there are multiple first parameters, the resource position of the first frequency domain resource satisfies the least common multiple or greatest common divisor of the values of the multiple first parameters , less influence of the indicated first frequency-domain resource on the resources respectively corresponding to the multiple first parameters can be achieved.
  • the n first parameters include at least one of the following: the frequency domain configuration granularity of the downlink reference signal of the second frequency domain resource; the frequency domain of the control resource set of the second frequency domain resource Configuration granularity; the size of the resource block group RBG of the second frequency domain resource; the bandwidth supported by the wake-up receiver of the first terminal device; the bandwidth supported by the radio frequency filter of the wake-up receiver of the first terminal device; The center frequency point of the RF filter of the wake-up receiver of the terminal equipment.
  • the first terminal device sends capability information to the network device, where the capability information is used to indicate at least one of the following: whether the first terminal device supports waking up the receiver; The frequency band information supported by the wake-up receiver; the bandwidth supported by the wake-up receiver of the first terminal device; the bandwidth supported by the radio frequency filter of the wake-up receiver of the first terminal device; the radio frequency filter of the wake-up receiver of the first terminal device the center frequency of the device.
  • the first terminal device reports capability information to the network device, so that the network device can indicate frequency domain resources based on the capabilities of the first terminal device, avoiding the failure of the network device to indicate to the first terminal device.
  • the first frequency domain resource is not supported by the first terminal device, so that the indicated frequency domain resource is invalid.
  • the bandwidth of the first signal is smaller than the bandwidth of the first frequency domain resource carrying the first signal.
  • the bandwidth of the first signal is smaller than the bandwidth of the first frequency domain resource carrying the first signal.
  • the center frequency point of the first signal is the same as the center frequency point of the first frequency domain resource carrying the first signal.
  • the center frequency point of the first signal is the same as the center frequency point of the first frequency domain resource carrying the first signal, which can ensure that the frequency domain resource occupied by the first signal does not exceed the first frequency domain resources, and when the bandwidth of the first signal is smaller than the bandwidth of the first frequency domain resource, a guard band is left between the first signals carried on each first frequency domain resource, so as to improve communication reliability.
  • the first terminal device receives second resource indication information from the network device, where the second resource indication information is used to indicate the resource position of the first signal in the first frequency domain resource .
  • the resource location of the first signal in the first frequency domain resource is known by the network device, thereby improving the flexibility of resource configuration.
  • the receiving the first signal by the first terminal device on the first frequency domain resource includes: the first terminal device determines from the at least one first frequency domain resource to carry the first signal A third frequency domain resource of a signal; the first terminal device receives the first signal on the third frequency domain resource.
  • the first terminal device can determine a first frequency domain resource from at least one first frequency domain resource to carry the first signal, that is, determine the third frequency domain resource, and accurately determine the first frequency domain resource to carry the first signal.
  • a frequency domain resource of a signal can be determined.
  • the method further includes: the first terminal device receiving third resource indication information from the network device, where the third resource indication information includes an identifier of the third frequency domain resource.
  • the network device can accurately indicate the third frequency domain resource through the identifier of the third frequency domain resource.
  • determining, by the first terminal device, a third frequency domain resource for carrying the first signal from the at least one first frequency domain resource includes: the first terminal device according to its identifier and The quantity of the first frequency domain resource configured by the network device determines the third frequency domain resource; or, the first terminal device determines the third frequency domain resource according to its service type and the first correspondence, and the first correspondence The relationship is the corresponding relationship between the service type and the first frequency domain resource identifier; or, the first terminal device determines the third frequency domain resource according to its paging probability and the second corresponding relationship, and the second corresponding relationship is paging The corresponding relationship between the call probability and the first frequency domain resource identifier; or, the first terminal device determines the third frequency domain resources.
  • the first terminal device can determine a third frequency domain resource from at least one first frequency domain resource according to a predefined or preset rule, so as to achieve balanced use of frequency domain resources.
  • the embodiment of the present application provides a communication method, the method includes: a network device determines at least one first frequency domain resource, the first frequency domain resource is used to carry a first signal, and the first signal is used to wake up the first frequency domain resource.
  • a terminal device the network device sends first resource indication information to the first terminal device, where the first resource indication information is used to indicate the at least one first frequency domain resource.
  • the method further includes: the network device sending the first signal to the first terminal device on the first frequency domain resource.
  • the network device when the network device sends the first resource indication information to the first terminal device, the first terminal device is in the first state, and when the network device sends the first signal to the first terminal device The first terminal device is in a second state, and the first state and the second state correspond to different power states.
  • the at least one first frequency domain resource is in one-to-one correspondence with at least one first frequency domain unit of the second frequency domain resource
  • the second frequency domain resource includes a plurality of frequency domain units
  • the plurality of frequency domain units The bandwidth of each frequency domain unit in the frequency domain units is predefined, and the multiple frequency domain units include the at least one first frequency domain unit.
  • the first resource indication information includes a first bitmap, bits in the first bitmap correspond to the multiple frequency domain units one-to-one, and bits in the first bitmap are used to indicate Whether the corresponding frequency domain unit is the first frequency domain unit.
  • the multiple frequency domain units are obtained by dividing the second frequency domain resource according to the preset bandwidth starting from the first frequency domain position, and the first frequency domain position is the The starting position of the second frequency domain resource, or the first frequency domain position does not belong to the second frequency domain resource, and the second frequency domain resource is a frequency domain resource corresponding to the transmission bandwidth of the first terminal device.
  • the first frequency domain position is a public reference point.
  • the transmission bandwidth of the first terminal device is a downlink partial bandwidth BWP or a downlink carrier bandwidth.
  • an embodiment of the present application provides a communication device, which includes: a transceiver unit, configured to receive first resource indication information from a network device, where the first resource indication information is used to indicate at least one first frequency domain resources; the transceiving unit is further configured to receive a first signal on the first frequency domain resource, where the first signal is used to wake up the first terminal device.
  • the communication device is in the first state when the transceiver unit receives the first resource indication information from the network device, and the communication device is in the second state when the transceiver unit receives the first signal,
  • the first state and the second state correspond to different power states.
  • the transceiving unit is specifically configured to: receive the first resource indication information from the network device through the main receiver.
  • the transceiving unit is specifically configured to: receive the first signal on the first frequency domain resource by waking up a receiver.
  • the modulation manner of the first signal is on-off keying OOK modulation or frequency shift keying FSK modulation.
  • the at least one first frequency domain resource is in one-to-one correspondence with at least one first frequency domain unit of the second frequency domain resource
  • the second frequency domain resource includes a plurality of frequency domain units
  • the plurality of frequency domain units The bandwidth of each frequency domain unit in the frequency domain units is predefined, and the multiple frequency domain units include the at least one first frequency domain unit.
  • the first resource indication information is used to indicate the at least one first frequency domain unit.
  • the first resource indication information includes at least one piece of first indication information, where the first indication information is used to indicate an identifier of the first frequency domain unit.
  • the first resource indication information includes a first bitmap, bits in the first bitmap correspond to the multiple frequency domain units one-to-one, and bits in the first bitmap are used to indicate Whether the corresponding frequency domain unit is the first frequency domain unit.
  • the multiple frequency domain units are obtained by dividing the second frequency domain resource according to the preset bandwidth starting from the first frequency domain position, and the first frequency domain position is the The starting position of the second frequency domain resource, or the first frequency domain position does not belong to the second frequency domain resource, and the second frequency domain resource is a frequency domain resource corresponding to the transmission bandwidth of the first terminal device.
  • the first frequency domain position is a public reference point.
  • the first resource indication information includes at least one second indication information
  • the second indication information includes a resource indication value RIV, where the RIV is used to indicate the starting position and bandwidth.
  • the transceiving unit is further configured to: receive transmission bandwidth indication information from the network device, where the transmission bandwidth indication information is used to indicate the identification of the transmission bandwidth corresponding to the at least one first frequency domain resource .
  • the transmission bandwidth of the communication device is a downlink partial bandwidth BWP or a downlink carrier bandwidth.
  • the downlink BWP includes one of the following: a BWP corresponding to the wake-up receiver of the first terminal device; an initial downlink BWP; an activated downlink BWP; and a default downlink BWP.
  • the start position, end position or bandwidth of the first frequency domain resource is an integer multiple of a first value, and the first value is determined based on n first parameters, where n is a positive integer .
  • n is equal to 1, and the first value is the value of the first parameter; n is greater than 1, and the first value is the least common multiple or the greatest common divisor of the values of the n first parameters.
  • the n first parameters include at least one of the following: the frequency domain configuration granularity of the downlink reference signal of the second frequency domain resource; the frequency domain of the control resource set of the second frequency domain resource Configuration granularity; the size of the resource block group RBG of the second frequency domain resource; the bandwidth supported by the wake-up receiver of the first terminal device; the bandwidth supported by the radio frequency filter of the wake-up receiver of the first terminal device; The center frequency point of the RF filter of the wake-up receiver of the terminal equipment.
  • the transceiver unit sends capability information to the network device, where the capability information is used to indicate at least one of the following: whether the communication device supports a wake-up receiver; the frequency band supported by the wake-up receiver of the communication device information; the bandwidth supported by the wake-up receiver of the communication device; the bandwidth supported by the radio frequency filter of the wake-up receiver of the communication device; the center frequency point of the radio frequency filter of the wake-up receiver of the communication device.
  • the bandwidth of the first signal is smaller than the bandwidth of the first frequency domain resource carrying the first signal.
  • the center frequency point of the first signal is the same as the center frequency point of the first frequency domain resource carrying the first signal.
  • the transceiving unit receives second resource indication information from the network device, where the second resource indication information is used to indicate a resource position of the first signal in the first frequency domain resource.
  • the communication device further includes: a processing unit configured to determine a third frequency domain resource used to carry the first signal from the at least one first frequency domain resource; the transceiver unit specifically uses The first signal is received on the third frequency domain resource.
  • the transceiving unit is further configured to: receive third resource indication information from the network device, where the third resource indication information includes an identifier of the third frequency domain resource.
  • the processing unit is further configured to: determine the third frequency domain resource according to its identifier and the quantity of the first frequency domain resource configured by the network device; or, determine the third frequency domain resource according to its service type and the first frequency domain resource Corresponding relationship, determine the third frequency domain resource, the first corresponding relationship is the corresponding relationship between the service type and the first frequency domain resource identifier; or, according to the paging probability and the second corresponding relationship, determine the third frequency domain resource Domain resources, the second correspondence is the correspondence between the paging probability and the first frequency domain resource identifier; or, according to its identifier and the weight corresponding to each first frequency domain resource in the at least one first frequency domain resource , determine the third frequency domain resource.
  • an embodiment of the present application provides a communication device, which includes: a processing unit configured to determine at least one first frequency domain resource, the first frequency domain resource is used to carry a first signal, and the first signal uses for waking up the first terminal device; the transceiving unit is configured to send first resource indication information to the first terminal device, where the first resource indication information is used to indicate the at least one first frequency domain resource.
  • the transceiving unit is further configured to: send the first signal to the first terminal device on the first frequency domain resource.
  • the first terminal device is in the first state when the transceiver unit sends the first resource indication information to the first terminal device, and when the transceiver unit sends the first signal to the first terminal device
  • the first terminal device is in a second state, and the first state and the second state correspond to different power states.
  • the at least one first frequency domain resource is in one-to-one correspondence with at least one first frequency domain unit of the second frequency domain resource
  • the second frequency domain resource includes a plurality of frequency domain units
  • the plurality of frequency domain units The bandwidth of each frequency domain unit in the frequency domain units is predefined, and the multiple frequency domain units include the at least one first frequency domain unit.
  • the first resource indication information includes a first bitmap, bits in the first bitmap correspond to the multiple frequency domain units one-to-one, and bits in the first bitmap are used to indicate Whether the corresponding frequency domain unit is the first frequency domain unit.
  • the multiple frequency domain units are obtained by dividing the second frequency domain resource according to the preset bandwidth starting from the first frequency domain position, and the first frequency domain position is the The starting position of the second frequency domain resource, or the first frequency domain position does not belong to the second frequency domain resource, and the second frequency domain resource is a frequency domain resource corresponding to the transmission bandwidth of the first terminal device.
  • the first frequency domain position is a common reference point.
  • the transmission bandwidth of the first terminal device is a downlink partial bandwidth BWP or a downlink carrier bandwidth.
  • the embodiment of the present application provides a communication device, including: a processor and a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, to execute the computer program as described in the first aspect, The method in the second aspect or each possible implementation manner.
  • the embodiment of the present application provides a chip, including: a processor, configured to call and execute computer instructions from the memory, so that the device installed with the chip executes the first aspect, the second aspect, or each possible implementation methods in methods.
  • the embodiments of the present application provide a computer-readable storage medium for storing computer program instructions, and the computer program causes a computer to execute the method in the first aspect, the second aspect, or each possible implementation manner.
  • an embodiment of the present application provides a computer program product, including computer program instructions, which cause a computer to execute the method in the first aspect, the second aspect, or each possible implementation manner.
  • the embodiment of the present application provides a terminal, including the apparatus in the third aspect, the fourth aspect, or each possible implementation manner.
  • FIG. 1 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application
  • FIG. 2a is a schematic diagram of a WUR communication provided by the present application.
  • FIG. 2b is a schematic diagram of another WUR communication provided by the present application.
  • FIG. 3 is a schematic diagram of a common resource block provided by the present application.
  • FIG. 4 is a schematic diagram of a frequency-domain positional relationship between a partial bandwidth and a carrier provided by the present application
  • FIG. 5 is a schematic diagram of time-frequency resources of a control resource set provided by an embodiment of the present application.
  • FIG. 6a is a schematic structural diagram of a synchronization signal and a broadcast channel block provided by the present application.
  • FIG. 6b is a schematic diagram of a transmission mechanism of a synchronization signal and a broadcast channel block provided by the present application;
  • FIG. 7a is a schematic diagram of an interaction process of a communication method 300a provided in an embodiment of the present application.
  • FIG. 7b is a schematic diagram of an interaction process of a communication method 300b provided in an embodiment of the present application.
  • FIG. 8a is a schematic diagram of resource division of a second frequency domain resource provided by an embodiment of the present application.
  • FIG. 8b is a schematic diagram of resource division of another second frequency domain resource provided by the embodiment of the present application.
  • FIG. 8c is a schematic diagram of a first signal bandwidth provided by an embodiment of the present application.
  • FIG. 8d is a schematic diagram of a first frequency domain resource bandwidth provided by an embodiment of the present application.
  • FIG. 9 is a schematic diagram of an interaction process of a communication method 400 provided in an embodiment of the present application.
  • FIG. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • Fig. 11 is another schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication method provided by this application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, wideband code division multiple access ( Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced long term evolution (LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) on unlicensed spectrum spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunications System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity ( Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple
  • the communication system in the embodiment of the present application can be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, can also be applied to a dual connectivity (Dual Connectivity, DC) scenario, and can also be applied to an independent (Standalone, SA ) meshing scene.
  • Carrier Aggregation, CA Carrier Aggregation
  • DC Dual Connectivity
  • SA independent meshing scene
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.
  • user equipment User Equipment, UE
  • access terminal user unit
  • user station mobile station
  • mobile station mobile station
  • remote station remote terminal
  • mobile device user terminal
  • terminal wireless communication device
  • wireless communication device user agent or user device
  • the terminal device can be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, vehicle-mounted devices, wearable devices, next-generation communication systems such as terminal devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.
  • PLMN Public Land Mobile Network
  • the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as aircraft, balloons and satellites) superior).
  • the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • a virtual reality (Virtual Reality, VR) terminal device an augmented reality (Augmented Reality, AR) terminal Equipment
  • wireless terminal equipment in industrial control wireless terminal equipment in self driving
  • wireless terminal equipment in remote medical wireless terminal equipment in smart grid
  • wireless terminal equipment in transportation safety wireless terminal equipment in smart city, or wireless terminal equipment in smart home.
  • the terminal device may also be a wearable device.
  • Wearable devices can also be called wearable smart devices, which is a general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable devices are not only a hardware device, but also achieve powerful functions through software support, data interaction, and cloud interaction.
  • Generalized wearable smart devices include full-featured, large-sized, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, etc., and only focus on a certain type of application functions, and need to cooperate with other devices such as smart phones Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the network device may be a device for communicating with the mobile device, and the network device may be an access point (Access Point, AP) in WLAN, a base station (Base Transceiver Station, BTS) in GSM or CDMA , or a base station (NodeB, NB) in WCDMA, or an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and an NR network A network device or a base station (gNB) in a network device or a network device in a future evolved PLMN network or a network device in an NTN network.
  • AP Access Point
  • BTS Base Transceiver Station
  • NodeB, NB base station
  • Evolutional Node B, eNB or eNodeB evolved base station
  • LTE Long Term Evolution
  • eNB evolved base station
  • gNB base station
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network equipment may be a satellite, balloon station.
  • the satellite can be a low earth orbit (low earth orbit, LEO) satellite, a medium earth orbit (medium earth orbit, MEO) satellite, a geosynchronous earth orbit (geosynchronous earth orbit, GEO) satellite, a high elliptical orbit (High Elliptical Orbit, HEO) satellite. ) Satellite etc.
  • the network device may also be a base station installed on land, in water, or other locations.
  • the network device may provide services for a cell, and the terminal device communicates with the network device through the transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, a cell corresponding to a base station), the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell), and the small cell here may include: a metro cell (Metro cell), a micro cell (Micro cell), a pico cell ( Pico cell), Femto cell, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the transmission resources for example, frequency domain resources, or spectrum resources
  • the cell may be a network device (
  • the cell may belong to a macro base station, or may belong to a base station corresponding to a small cell (Small cell)
  • the small cell here may include: a metro cell (Metro cell), a micro cell (Micro
  • Fig. 1 shows a schematic diagram of a communication system applicable to the communication method of the embodiment of the present application.
  • the communication system 100 may include network devices and terminal devices, and the number of network devices and terminal devices may be one or more, such as network devices 111 and 112 and terminal devices 121 to 128 shown in FIG. 1 , in the communication system 100, the network device 111 can communicate with one or more of the terminal devices 121 to 126 through a wireless air interface, and the network device 111 can communicate with one or more of the terminal devices 127 and 128 through the network device 112 communicate with a terminal device.
  • the terminal devices 124 to 126 can form the communication system 101.
  • the terminal device 124 can communicate with one or more of the terminal devices 125 and 126 through wireless air interfaces
  • the network device 112 and the terminal device 127 and 128 may form a communication system 102, in which the network device 112 may communicate with one or more terminal devices among the terminal devices 127 and 128 through a wireless air interface.
  • FIG. 1 is only an example, showing two network devices and eight terminal devices in the communication system 100, three terminal devices in the communication system 101, and one network device and two terminal devices in the communication system 102. . But this should not constitute any limitation to the present application. Any of the above communication systems may include more or less network devices, or more or less terminal devices. This embodiment of the present application does not limit it.
  • IoT Internet of Things
  • IoT is still mainly driven by operators, and IoT modules need to communicate with base stations using standard cellular protocols. Since the base station needs to cover as large an area as possible, the IoT module needs to be able to communicate even when it is far away from the base station, which makes the IoT device still need to consume up to 30mA of current during wireless communication, so the current IoT module It is still necessary to use a battery with a higher capacity to work, which also makes it difficult to make the size of the IoT module small and increases the cost of the IoT device.
  • the terminal device after the terminal device enters the sleep state, it needs to wake up periodically to receive control information from the AP , according to the indication carried in the control information (such as traffic indication map (traffic indication ma, TIM)), the terminal device can perceive whether there is downlink data from the AP. If the terminal device is in the dormant state for a long time, it can enjoy lower power consumption, but it will increase the delay of receiving data.
  • the IEEE 802.11TGba organization was established and developed a draft of IEEE 802.11ba (also known as wake-up radio).
  • the goal of IEEE 802.11ba WUR is to enable active devices that consume less than 1mW.
  • the terminal equipment is equipped with two radio chains, the primary connection radio (PCR) (also known as the primary receiver) and the companion connection radio (Companion Radio) (also known as the wake-up receiver (WUR) ).
  • PCR primary connection radio
  • WUR wake-up receiver
  • the PCR consumes a lot of power, and it is expected to switch to sleep mode for as long as possible, thereby significantly reducing power consumption; the WUR consumes less power, and is used to monitor the wake-up frame sent by the AP, and perform PCR after the wake-up frame is detected. wake.
  • a main receiver 211 and a wake-up receiver 212 are deployed in the receiver device 210 .
  • the transmitting end device 220 such as AP or terminal device
  • the main receiver is turned off, also known as being in a dormant state, and the wake-up receiver is turned on; as shown in FIG. 2b, when the transmitting end device 220 sends data, first Send wake-up data (such as the above-mentioned wake-up frame), and the receiving end device 210 activates the main receiver 212 after receiving the wake-up data through the wake-up receiver 211, so that the main receiver is turned on, also known as being in an active state.
  • the receiving end device 210 passes The main receiver 211 receives the data sent by the transmitter device 220 after waking up the data.
  • the information bits of the wake-up machine are modulated into on-off keying (OOK) symbols, and the transmitter device uses these OOK symbols to shield the generated narrowband orthogonal frequency division multiplexing (OFDM) ) waveform (that is, OOK waveform), so as to further optimize the OOK waveform.
  • OOK symbol is carried on 13 subcarriers. It is called in the wireless local area network standard IEEE 802.11ba defined by the Institute of Electrical and Electronics Engineers (IEEE). Multicarrier (multicarrier, MC) OOK.
  • OOK demodulation does not require any channel equalization in the frequency domain and time domain, so the receiving end device listens by waking up the receiver for non-coherent detection (such as envelope detection). With non-coherent detection, the receiver device does not need to maintain/track the oscillation rate with high precision. Therefore, a phase-locked loop can be avoided, further reducing power consumption at the receiving side.
  • OOK symbol is only an example of the WUR wake-up frame, and does not constitute any limitation to the present application.
  • the embodiment of the present application provides a solution for determining frequency domain resources, so that a wake-up signal sender (such as a network device or a terminal device) and a wake-up receiver can transmit a wake-up signal on the determined frequency domain resources.
  • a wake-up signal sender such as a network device or a terminal device
  • a wake-up receiver can transmit a wake-up signal on the determined frequency domain resources.
  • Parameter set (numerology): In the NR system, in order to adapt to OFDM waveforms with different subcarrier spacings, a parameter set is introduced so that the subcarrier spacing is not limited and can be adapted according to different usage scenarios.
  • ⁇ f is the subcarrier spacing
  • ⁇ is an integer greater than or equal to 0.
  • Antenna port An antenna port is defined such that the channel of one symbol transmitted on that antenna port can be inferred from the channel of another symbol transmitted on the same antenna port, in other words, the experience of different signals transmitted on the same antenna port The channel environment is the same.
  • Resource grid (resource grid) or resource grid: a resource grid corresponds to a parameter set and carrier, the resource grid includes subcarriers and OFDM symbols, where, Indicates the number of resource blocks (resource element, RB) in one resource grid when the subcarrier spacing is configured as ⁇ . Indicates the number of subcarriers in one RB. optional, consecutive subcarriers.
  • the starting resource block of the resource grid is a common resource block (CRB).
  • CRB common resource block
  • Resource element Each element in the resource grid used for antenna port p and subcarrier spacing configuration ⁇ is called a resource element, and is uniquely identified by (k,l) p, ⁇ , where k is The index of the RE in the frequency domain, l is the position of the symbol of the RE in the time domain relative to a certain reference point.
  • Resource element (k,l) p, ⁇ corresponds to a physical resource and complex value When there is no risk of confusion, or when no specific antenna port or subcarrier spacing is specified, the indices p and ⁇ may be discarded, resulting in Or a k,l .
  • point A is the public reference point of the resource grid.
  • Common resource blocks For the subcarrier spacing configuration ⁇ , the common resource blocks are numbered upwards from 0 in the frequency domain. The center frequency point of subcarrier 0 of common resource block 0 of subcarrier spacing configuration ⁇ coincides with point A, see Figure 3.
  • Physical resource blocks The physical resource blocks of the subcarrier spacing configuration ⁇ are defined in a partial bandwidth (bandwidth part, BWP), numbered from 0 to where i is the number of the BWP. Physical resource blocks in BWP i with common resource block between satisfy the following formula (2)
  • Index ⁇ may be removed when there is no risk of confusion.
  • BWP For a given parameter set ⁇ i in a BWP i on a given (given) carrier (carrier), the BWP is a subset of continuous CRBs.
  • the starting position of the BWP and the number of PRBs of physical resource blocks should be satisfied respectively and in Indicates the size of the resource grid, Indicates the starting position of the resource grid.
  • the frequency domain location relationship between the BWP and the carrier can be shown in FIG. 4 .
  • an end-device can have up to four BWPs configured in the downlink, one of which is active at a given time; an end-device can be configured with up to four BWPs in the uplink, of which one The upstream BWP is active at a given time. If a terminal device is configured with a supplementary uplink, the terminal device may additionally configure up to four bandwidth parts in the supplementary uplink, where a single supplementary uplink BWP is active at a given time.
  • Control resource set time-frequency resource for sending a physical downlink control channel (physical downlink control channel, PDCCH).
  • PDCCH physical downlink control channel
  • the frequency domain configuration granularity of the control resource set is 6RB.
  • a cell can be configured with multiple CORESETs, and CORESETs do not necessarily occupy the entire system bandwidth in the frequency domain. Based on this, NR can support terminal devices with different bandwidth capabilities. As shown in Figure 5, CORESET 0 and CORESET 1 occupy part of the bandwidth in BWP 0 and BWP 1 respectively.
  • BWP configuration information can be configured by network devices through high-level signaling, such as high-level signaling can include radio resource control (radio resource control, RRC) signaling, etc.
  • RRC radio resource control
  • the configuration information may include, for example, a resource indication value (resource indication value, RIV).
  • RIV resource indication value
  • the terminal device can determine the starting position of the BWP (for example, the starting RB number RB start ) and the bandwidth (for example, the number of consecutive RBs L RBs ).
  • CORESET frequency domain resource configuration network devices can indicate CORESET frequency domain resources through a bitmap.
  • each bit of the bitmap corresponds to a non-overlapping resource group containing 6 consecutive RBs, and is numbered in the order of increasing RB index in a downlink BWP.
  • the bandwidth of the downlink BWP is The starting CRB is
  • the first CRB index of the first resource group containing 6RB is If the value of the bit in the bitmap is 1, the corresponding RB group is used for the CORESET; if the value of the bit in the bitmap is 0, the corresponding PRB group is not used for the CORESET.
  • the corresponding bit of the resource group will be set to 0, that is, it will not be used for this CORESET.
  • Downlink resource configuration NR physical downlink shared channel (physical downlink shared channel, PDSCH), for example, can perform resource configuration based on the following two resource allocation methods:
  • Type 0 Downlink resource allocation Type 0 (hereinafter referred to as Type 0):
  • the frequency domain resource granularity configured by the downlink resource allocation Type 0 is related to the size of the resource block group (RBG).
  • the RBG is a group of continuous virtual resource blocks (virtual resource block, VRB).
  • the size (size) of each RBG, or the number of VRBs included in each RBG, can be determined by the size of the downlink BWP.
  • the corresponding relationship between the size of the downlink BWP and the RBG is shown in Table 2 below.
  • each BWP size corresponds to two different configurations (such as configuration 1 and configuration 2). Whether configuration 1 or configuration 2 is used depends on the network The device is instructed.
  • the network device may use downlink control information (downlink control information, DCI) to instruct to allocate part or all of the RBGs in the BWP to the terminal device.
  • DCI downlink control information
  • the DCI includes a bitmap (bitmap) with a size of N RBGs , and each bit in the bitmap corresponds to one RBG.
  • the highest bit (most significant bit, MSB) of the bitmap corresponds to RBG 0
  • the lowest bit (least significant bit, LSB) corresponds to RBG N RBG -1, and so on.
  • the RBG corresponding to the bit is allocated to the terminal device, and when the bit is 0, the RBG corresponding to the bit is not allocated to the terminal device.
  • the RBG index starts from the lowest frequency of the BWP and is numbered in ascending order of frequency.
  • the RBG indexes are numbered in ascending order of frequency starting from the lowest frequency of the BWP, which are RBG 0, RBG1...RBG N RBG -1.
  • the terminal device is allocated RBG 0, RBG 2, RBG 4, RBG 5, RBG 6 and RBG12 as shown in Table 3.
  • Type 0 supports discontinuous VRB allocation in the frequency domain, and the minimum granularity of Type 0 scheduling is one RBG.
  • the size of the RBG can be, for example, 2RB, 4RB, 8RB or 16RB in Table 2.
  • Type 1 Downlink resource allocation Type 1 (hereinafter referred to as Type 1):
  • the frequency domain resource allocated by the network device to the terminal device is a segment of continuous VRB in the downlink active BWP, where the size of the BWP is PRB, the VRB can be interleaved or non-interleaved.
  • the DCI sent by the network device to the terminal device includes a RIV, which is used to indicate downlink frequency domain resources, and the terminal device can determine the starting VRB (RB start ) and the number of consecutive RBs (L RBs ) through the RIV. Based on this, Type 1 supports continuous VRB allocation in the frequency domain. Unlike Type 0, whose minimum scheduling granularity is one RBG, the lowest scheduling unit of Type 1 can be one RB.
  • a VRB is a logical virtual RB and needs to be mapped to a PRB eventually.
  • interleaving For the non-interleaving mode, VRBs and PRBs are the same; for the interleaving mode, VRBs are mapped to PRBs according to certain rules, and at this time, consecutive VRBs are not necessarily mapped to consecutive PRBs.
  • the frequency domain configuration granularity of a downlink reference signal may be an integer multiple of 4 PRBs (such as 0, 4, ).
  • the NR system supports multiple downlink reference signal (such as CSI-RS) resources (resources), and the bandwidth and starting PRB of frequency domain resources corresponding to each resource can be configured by network equipment.
  • the bandwidth of the configured frequency domain resource is an integer multiple of 4, for example, it may be 24 PRBs.
  • the terminal device may determine the smaller bandwidth of the configured downlink reference signal (such as CSI-RS) resource bandwidth and the BWP bandwidth as the actual bandwidth of the downlink reference signal (such as CSI-RS).
  • Synchronization signal and broadcast channel block (synchronization signal and PBCH block, SSB)
  • the terminal device can realize time-frequency synchronization with the access network device by receiving the SSB from the access network device.
  • the terminal device can also perform system message demodulation and the like according to the SSB.
  • related technical features involved in SSB will be described in conjunction with FIG. 6a and FIG. 6b.
  • a primary synchronization signal (primary synchronization signal, PSS), a secondary synchronization signal (secondary synchronization signal, SSS) and a PBCH together constitute an SSB.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH PBCH
  • 1 SSB occupies 4 symbols (symbols), which are symbols 0 to 3
  • 1 SSB occupies 20 resource blocks (resource block, RB) (one
  • the RB includes 12 subcarriers), that is, 240 subcarriers, and the subcarrier numbers are 0-239.
  • the PSS is located on the middle 127 subcarriers of symbol 0
  • the SSS is located on the middle 127 subcarriers of symbol 2.
  • protection subcarriers In order to protect the PSS and SSS, there are different protection subcarriers.
  • the protection subcarriers are not used to carry signals, and the subcarriers are reserved on both sides of the SSS as protection subcarriers.
  • the blank areas on both sides of the SSS in Figure 6a are protection subcarriers.
  • carrier. PBCH occupies all the subcarriers of symbol 1 and symbol 3, and occupies all subcarriers of symbol 2 except for the subcarriers occupied by SSS. subcarriers other than the carrier).
  • the PSS can be used to transmit the cell ID
  • the SSS can be used to transmit the cell group ID.
  • the cell ID and the cell group ID together determine multiple physical cell identities (PCI) in the 5G communication system.
  • PCI physical cell identities
  • the system information in the SSB is carried by the physical boardcast channel (PBCH). Since this information is necessary for the terminal device to access the network, it can be called the main information block (MIB).
  • the MIB may contain the system frame number, the initial access subcarrier interval, and other information.
  • SIB system information block
  • PDSCH physical downlink shared channel
  • the access network device can use a frequency point to send SSB through different beams at different times to complete the broadcast beam coverage of the cell, as shown in Figure 6b.
  • a set of SSBs sent by an access network device during a beam scanning process may be referred to as a synchronization signal (synchronization signal, SS) burst set (burst set).
  • SS synchronization signal
  • burst set The period of SS burst set is equivalent to the period of SSB corresponding to a specific beam, which can be configured as 5ms (milliseconds), 10ms, 20ms, 40ms, 80ms or 160ms, etc. Since the terminal device cannot wait for too long on a certain frequency point when performing cell search, the default is 20 ms.
  • each SS burst set is always located in the time interval of 5ms.
  • the period of SS burst set is 20ms, and an SS burst set includes P SSBs as an example.
  • the first, second, third and various numbers are only for convenience of description, and are not used to limit the scope of the embodiments of the present application.
  • different signals, frequency domain resources, indication information, corresponding relationships, etc. are distinguished.
  • predefinition can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including network devices and terminal devices). Do limited.
  • Pre-configuration can be realized by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in devices (for example, including network devices and terminal devices), and can also be pre-configured through signaling, such as network devices through Signaling pre-configuration, etc., the present application does not limit the specific implementation.
  • the "protocol” involved in this embodiment of the application may refer to a standard protocol in the communication field, for example, it may include LTE protocol, NR protocol and related protocols applied in future communication systems, which is not limited in this application.
  • At least one means one or more, and “multiple” means two or more.
  • “And/or” describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B, which can mean: A exists alone, A and B exist at the same time, and B exists alone, where A, B can be singular or plural.
  • the first terminal device may be, for example, the above-mentioned wake-up machine, or a terminal device deployed with a wake-up machine.
  • the first terminal device may be, for example, any one of the terminal devices 121 to 126 in FIG. 1, and the network device may be, for example, 111 in FIG. 1; 128.
  • the network device may be, for example, the network device 112 in FIG. 1 .
  • the first terminal device may receive a wake-up signal (same as the first signal hereinafter) on the frequency domain resource configured by the network device.
  • the wake-up signal received by the first terminal device may come from the network device, for example, the terminal devices 121 to 126 in FIG.
  • the wake-up signal received by the terminal device may come from a second terminal device (such as the transmitting end device 220 in Figures 2a and 2b), for example, the terminal device 125 or 126 in Figure 1 may receive the terminal device 124 The wakeup signal sent.
  • the first terminal device may include a main receiver and a wake-up receiver.
  • the first terminal device may be the receiving end device 210 in FIG. 2a and FIG. 2b
  • the main receiver of the first terminal device may be the The main receiver 211 in FIG. 2a and FIG. 2b
  • the wake-up receiver of the first terminal device may be the wake-up receiver 212 in FIG. 2a and FIG. 2b.
  • the first terminal device shown in the following embodiments may also be replaced with components in the first terminal device, such as a chip, a chip system, or other functional modules capable of invoking programs and executing programs.
  • a network device may also be replaced with components in the network device, such as a chip, a chip system, or other functional modules capable of invoking programs and executing programs.
  • the wake-up signal is only an exemplary description, and the present application does not limit the name of the wake-up signal.
  • FIG. 7a is a schematic diagram of an interaction process of a communication method 300a provided in an embodiment of the present application.
  • the method 300a may include S310a and S320a. Each step in the method 300a will be described in detail below.
  • the network device sends first resource indication information to the first terminal device, where the first resource indication information is used to indicate at least one first frequency domain resource.
  • the first terminal device receives first resource indication information from the network device.
  • the network device sends a first signal to the first terminal device, where the first signal is used to wake up the first terminal device.
  • the first terminal device receives the first signal from the network device.
  • the first signal may be, for example, the above-mentioned wake-up signal or wake-up frame.
  • the first signal is carried on a first frequency domain resource.
  • the first signal may be carried on one first frequency domain resource in at least one first frequency domain resource, but it should be understood that each first frequency domain resource is may be used to bear the first signal.
  • Waking up the first terminal device generally means that the first terminal device turns on the main receiver to perform data communication with the network device or other terminal devices.
  • the awakening of the first terminal device by the first signal may also be expressed as that the first terminal device will switch from the first state to the second state after receiving the first signal.
  • the first state and the second state correspond to different power states, generally speaking, the power of the first terminal device in the first state is lower than the power in the second state.
  • the main receiver of the first terminal device when the first terminal device is in the first state, the main receiver of the first terminal device is turned off, or in a dormant state, and the wake-up receiver is turned on; when the first terminal device is in the second state, the main receiver of the first terminal device The receiver is on, or called active, wake up and the receiver remains on.
  • the first terminal device is in the first state when receiving the first resource indication information from the network device, and is in the second state after being awakened by the first signal when receiving the first signal.
  • the first terminal device when the first terminal device is in the first state, it does not receive or send signals other than the first signal.
  • the first terminal device may receive the first resource indication information from the network device through the main receiver.
  • the first terminal device may receive the first signal on the first frequency domain resource by waking up the receiver.
  • the modulation mode of the first signal is OOK modulation, amplitude keying (ask modulation, ASK) or frequency-shift keying (frequency-shift keying, FSK) modulation.
  • the number of first terminal devices may be one or more.
  • the network device may send its corresponding first resource indication information to the multiple first terminal devices.
  • a terminal device receives a first signal on a first frequency domain resource indicated by its first resource indication information.
  • the at least one first frequency domain resource may be a second frequency domain resource (such as a frequency domain resource corresponding to the transmission bandwidth of the first terminal device (such as downlink BWP or downlink carrier bandwidth)), or at least one first frequency domain resource.
  • the domain resources may be a subset of the second frequency domain resources.
  • the embodiment of the present application provides the following two possible implementation manners to exemplify the configuration of the first frequency domain resource.
  • Way 1 Divide the frequency domain resources corresponding to the transmission bandwidth of the first terminal device into multiple frequency domain units, and the first resource indication information indicates at least one first frequency domain unit in the multiple frequency domain units.
  • One first frequency domain unit corresponds to one first frequency domain resource, that is, the frequency domain resource included in the first frequency domain unit is the first frequency domain resource.
  • the bandwidth of each frequency domain unit in the plurality of frequency domain units may be predefined in the network device and/or the first terminal device; or may be preconfigured, for example, when the bandwidth of each frequency domain unit is only in the network
  • the network device may send signaling to the first terminal device to configure the bandwidth of each frequency domain unit; or the bandwidth of each frequency domain unit may be defined in the protocol.
  • the bandwidth of each frequency domain unit may be the same or different, which is not limited in this application.
  • the division of the second frequency domain resource may start from the first frequency domain position and perform division according to a preset bandwidth, so as to obtain multiple frequency domain units.
  • the preset bandwidth may be predefined, preconfigured, or defined in a protocol.
  • the first frequency domain position may be, for example, the starting position of the second frequency domain resource, or may not belong to the second frequency domain resource.
  • the first frequency domain position may be any frequency point in the resource pool that does not belong to the second frequency domain resource.
  • the first frequency domain position may be a common reference point (such as point A).
  • the first frequency domain location is a common reference point outside the second frequency domain resource, as shown in FIG.
  • the frequency domain is divided according to the preset bandwidth to obtain a plurality of frequency domain units corresponding to the second frequency domain resource of the first terminal device 2, as shown in FIG.
  • the frequency domain unit 4 and the frequency domain unit 4 Some of the frequency domain resources in unit 0 do not overlap with the frequency domain resources of the first terminal device 2, then the multiple frequency domain units corresponding to the second frequency domain resources of the first terminal device 2 do not include frequency domain units 4 and 0, or The multiple frequency domain units corresponding to the second frequency domain resources of the first terminal device 2 include frequency domain units 4 and 0, and the frequency domain units 4 and 0 only include frequency domain resources that overlap with the frequency domain resources of the first terminal device 2 .
  • the frequency domain is divided according to the preset bandwidth, and the first A plurality of frequency domain units (0 to 3) corresponding to the second frequency domain resource of the terminal device.
  • the network device may multiplex the first signals of different first terminal devices in the same first frequency domain unit, and send the first signals to each first terminal device corresponding to the first signal. For example, in FIG. 8a , the network device may send respective corresponding first signals to the first terminal device 1 and the first terminal device 2 in the frequency domain unit 1 .
  • the utilization rate of frequency domain resources is improved.
  • All or part of the frequency domain units in the multiple frequency domain units may be at least one first frequency domain unit.
  • the first resource indication information sent by the network device to the first terminal device may indicate the multiple frequency domain units.
  • the first resource indication information may indicate an identifier (such as an index) of each frequency domain unit in multiple frequency domain units. As shown in FIG.
  • the first resource indication information received by the first terminal device 1 may include, for example, the 0 to 3, the first resource indication information received by the first terminal device 2 may include, for example, the identifications of frequency domain units 0 to 4; for another example, the first resource indication information may use 1 bit to indicate that the multiple frequency domain units are the first A frequency domain unit.
  • the network device may not send the first resource indication information to the first terminal device, and the first terminal device uses the divided frequency domain units as at least one first frequency domain unit according to a predefined rule, On this basis, the network device may indicate to the first terminal device that one frequency domain unit among the multiple frequency domain units is used to determine the transmission position of the first signal.
  • the first resource indication information sent by the network device to the first terminal device may indicate the first frequency domain unit among them.
  • the first resource indication information includes at least one piece of first indication information, where the first indication information is used to indicate an identifier (such as an index) of the first frequency domain unit.
  • the first indication information is used to indicate an identifier (such as an index) of the first frequency domain unit.
  • the first resource indication information includes two first indication information, and the identifiers of the first frequency domain units respectively indicated by the two first indication information are 1 and 3, then the multiple frequency domain units Frequency domain units 1 and 3 are at least one first frequency domain unit.
  • the first resource indication information includes a first bitmap, and bits in the first bitmap are in one-to-one correspondence with multiple frequency domain units corresponding to the second resource.
  • the bits in the first bitmap are used to indicate whether the corresponding frequency domain unit is the first frequency domain unit. For example, when a bit of the first bitmap is the second value, it indicates that the corresponding frequency domain unit is the first frequency domain unit, and when a bit of the first bitmap is the third value, it indicates that the corresponding frequency domain unit is not the first frequency domain unit.
  • the second value may be 0, for example, and the third value may be 1; or the second value may be 1, for example, and the third value may be 0, for example. Assume that the second value is 1 and the third value is 0, see Table 4 below.
  • the frequency domain units 0, 1 and 2 in the second resource are all the first frequency domain units.
  • the transmission bandwidth of the first terminal device may be a downlink BWP or a downlink carrier bandwidth.
  • the downlink BWP may include one of the following: a BWP of the first terminal device for receiving the first signal; an initial downlink BWP; an activated downlink BWP; and a default (default) downlink BWP.
  • the downlink BWP and/or the downlink carrier bandwidth may be configured in a system message or in an RRC message.
  • the subcarrier spacing of the first frequency domain resource may be the same as the subcarrier spacing of the downlink BWP or the downlink carrier bandwidth.
  • the cyclic prefix type of the first frequency domain resource may be the same as the cyclic prefix type of the downlink BWP or the downlink carrier bandwidth.
  • the network device may send transmission bandwidth indication information to the first terminal device, where the transmission bandwidth indication information is used to indicate an identifier of a transmission bandwidth corresponding to at least one first frequency domain resource.
  • the at least one first frequency domain resource may correspond to the same transmission bandwidth identifier, and the at least one first frequency domain resource may also correspond to a different transmission bandwidth identifier, for example, the transmission bandwidth indication information may be a BWP identifier, and/or, Carrier ID.
  • the transmission bandwidth indication information may be carried by the first resource indication information, or the transmission bandwidth indication information may be independent indication information.
  • the first resource indication information indicates the first frequency domain resource in the transmission bandwidth of the first terminal device.
  • the first resource indication information includes at least one second indication information
  • the second indication information includes a RIV, where the RIV is used to indicate a starting position and bandwidth of a first frequency domain resource.
  • the network device needs to generate the RIV according to the starting position RB start and the bandwidth L RBS of the first frequency domain resource to be indicated.
  • the network device may have the bandwidth L RBS of the first frequency domain resource and the transmission bandwidth of the first terminal device as When the following formula (3) is satisfied, the RIV is obtained according to the following formula (4), and the bandwidth L RBS of the first frequency domain resource and the transmission bandwidth of the first terminal device are When the following formula (3) is not satisfied, RIV is obtained according to the following formula (5).
  • L RBS is greater than or equal to 1 and less than
  • the terminal device may determine the starting position and bandwidth of the first frequency domain resource according to the RIV in the received second indication information.
  • the terminal device can be at the RIV and the transmission bandwidth of the first terminal device is
  • the starting position RB start and the bandwidth L RBS of the first frequency domain resource are determined according to the following formula (7a) and formula (7b)
  • the transmission bandwidth between the RIV and the first terminal device is
  • the starting position RB start and the bandwidth L RBS of the first frequency domain resource are determined according to the following formula (8a) and formula (8b).
  • the transmission bandwidth of the first terminal device involved in the above-mentioned method 2 has been described in the above-mentioned method 1, and will not be repeated here.
  • the network device may send transmission bandwidth indication information to the first terminal device, where the transmission bandwidth indication information is used to indicate an identifier of a transmission bandwidth corresponding to at least one first frequency domain resource.
  • the at least one first frequency domain resource may correspond to the same transmission bandwidth identifier, and the at least one first frequency domain resource may also correspond to a different transmission bandwidth identifier, for example, the transmission bandwidth indication information may be a BWP identifier, and/or, Carrier ID.
  • the transmission bandwidth indication information may be carried by the first resource indication information, or the transmission bandwidth indication information may be independent indication information.
  • the network device implements efficient configuration of at least one first frequency domain resource through the RIV coding manner, saving signaling overhead.
  • FIG. 7b is a schematic diagram of an interaction process of a communication method 300b provided in an embodiment of the present application. As shown in Figure 7a, the method 300b includes:
  • the network device sends first resource indication information to the first terminal device and the second terminal device respectively.
  • the first terminal device and the second terminal device respectively receive the first resource indication information from the network device.
  • the second terminal device sends the first signal to the first terminal device on the first frequency domain resource.
  • the first terminal device receives the first signal from the second terminal device on the first frequency domain resource.
  • the second terminal device sends the first signal to the first terminal device instead of the network device sending the first signal to the first terminal device .
  • the network device may also send the first resource indication information to the second terminal device.
  • the process of the network device sending the first resource indication information to the first terminal device is similar to the above S310a in FIG. 7a , and will not be repeated here.
  • the first resource indication information sent by the network device to the second terminal device is similar to the first resource indication information sent by the network device to the first terminal device, and will not be repeated here.
  • both the second terminal device and the first terminal device determine the first frequency domain resource used for transmitting the first signal based on the first resource indication information sent by the network device, so as to implement the second terminal device and the first terminal device The device transmits the first signal on the first frequency domain resource.
  • the network device configures multiple first frequency domain resources to the first terminal device (or to the first terminal device and the second terminal device).
  • the terminal device sends the first signal, it may send the first signal to the corresponding first terminal device on each first frequency domain resource, thereby reducing paging false alarms (UE perspective) or improving paging capacity (gNB perspective).
  • UE perspective paging false alarms
  • gNB perspective improving paging capacity
  • the network device may use a system message to carry the first resource indication information, so as to configure at least one first frequency domain resource.
  • the first signal may be transmitted on the above-mentioned first frequency domain resource.
  • Multiple first signals may be frequency-division multiplexed.
  • the network device may send each first signal through different first frequency resources.
  • the first signal is used as a wake-up signal or a wake-up frame, and the first terminal device often uses non-coherent detection (such as envelope detection) to monitor the first signal.
  • a certain guard band or called a guard band
  • the bandwidth of the first signal of each terminal device (such as the first terminal devices 1 to 4) may be smaller than the bandwidth of the first frequency domain resource carrying the first signal.
  • the center frequency point of the first signal is the same as the center frequency point of the first frequency domain resource carrying the first signal.
  • the relative position of the first signal in the first frequency domain resource may be configured by a network device, and the first frequency domain resource is used to bear the first signal.
  • the resource location of the first frequency domain resource in this embodiment (for example, the starting point of the first frequency domain resource start position and/or end position) and/or the bandwidth of the first frequency domain resource needs to meet the restriction of an integer multiple of the first value.
  • the first value is determined based on n first parameters, and n is a positive integer.
  • the first value when n is equal to 1, the first value may be the value of the first parameter; when n is greater than 1, the first value may be the least common multiple or the greatest common divisor of the values of n first parameters. In another example, when n is 2, the first value may be the larger or smaller value of the n first parameters. In another example, when n is greater than 2, the first value may be the n first The maximum or minimum value of the parameter's numeric value.
  • the n first parameters may include at least one of the following, for example:
  • the frequency domain configuration granularity of the downlink reference signal (such as CSI-RS) of the second frequency domain resource for example, the frequency domain configuration granularity of the CSI-RS is 4RB;
  • the frequency domain configuration granularity of the control resource set of the second frequency domain resource may be, for example, 6RB;
  • the size of the resource block group RBG of the second frequency domain resource for example, the size of the RBG configured for the PDSCH downlink data resource mentioned above may be, for example, 2, 4, 6, 8, 16 RB;
  • the bandwidth supported by the wake-up receiver of the first terminal device may be a value of the bandwidth, such as 100kHz, 3MHz or 6RB, etc.;
  • the bandwidth supported by the radio frequency filter of the wake-up receiver of the first terminal device which may also be the value of the above-mentioned bandwidth
  • the center frequency point of the RF filter of the wake-up receiver of the first terminal device is the center frequency point of the RF filter of the wake-up receiver of the first terminal device.
  • the bandwidth supported by the wake-up receiver of the first terminal device, the bandwidth supported by the radio frequency filter of the wake-up receiver, and the center frequency point of the radio frequency filter of the wake-up receiver may be the capability information reported by the network device from the first terminal device obtained from .
  • the resource position of the first frequency domain resource (for example, the start position and/or the end position of the first frequency domain resource) and/or the bandwidth of the first frequency domain resource must meet the above restrictions, which can reduce the The impact of the first frequency domain resources of the signal on the allocation of existing NR resources (such as control resource sets, downlink reference signal resources, and downlink data resources) has less resource fragmentation.
  • An exemplary description will be made below in conjunction with FIG. 8d.
  • the first frequency domain resource may overlap with a certain frequency domain resource in the control resource set.
  • the first frequency domain resource and the control resource set should have a frequency domain resources overlap, but should avoid making the first frequency domain resource cross multiple frequency domain resources in the control resource set.
  • the resource position of the first frequency domain resource (for example, the start position and/or end position of the first frequency domain resource) and/or the bandwidth of the first frequency domain resource, and the above-mentioned constraints that need to be satisfied may be a protocol defined or implemented by network devices.
  • FIG. 7a On the basis of the above-mentioned FIG. 7a or FIG. 7b, some or all of the steps in FIG. 9 may be included.
  • the frequency domain resource of the first signal should be far away from the frequency domain resource where the SSB and/or CORESET 0 of the NR are located during configuration.
  • the transmission bandwidth associated with the first signal does not include the SSB, and/or, the transmission bandwidth associated with the first signal does not include CORESET 0. It should be noted that excluding means that there is no overlap in the frequency domain, and the transmission bandwidth associated with the first signal is determined according to the above transmission bandwidth indication information.
  • the transmission bandwidth associated with the first signal includes the SSB
  • the first signal is configured on the side far away from the SSB in the frequency domain within the transmission bandwidth, and the lowest frequency position of the transmission bandwidth and the SSB between The distance f1, the distance f2 between the highest frequency position of the transmission bandwidth and the SSB, the first signal should be configured on the larger side of f1 and f2 within the transmission bandwidth.
  • the transmission bandwidth associated with the first signal includes CORESET 0, the first signal is configured on a side far away from CORESET 0 in the frequency domain within the transmission bandwidth, and the distance between the lowest frequency position of the transmission bandwidth and CORESET 0 f1, f2 of the distance between the highest frequency position of the transmission bandwidth and CORESET 0, the first signal should be configured on the larger side of f1 and f2 within the transmission bandwidth.
  • the transmission bandwidth associated with the first signal is determined according to the above transmission bandwidth indication information.
  • FIG. 9 is a schematic interaction flowchart of a communication method 400 provided by an embodiment of the present application. All or part of the steps in S410, S440 to S460 shown in Figure 9 can be implemented on the basis of the embodiment shown in Figure 7a or Figure 7b, for ease of understanding, Figure 9 is only combined with Figure 7a for example instruction of.
  • S420 and S430 in FIG. 9 are similar to S310a and S320a in FIG. 7a respectively, and will not be repeated here.
  • the quantity of the first frequency domain resources indicated by the first resource indication information may be one or more. If the first resource indication information indicates a first frequency domain resource, the first terminal device may receive the first signal sent by the network device on the first frequency domain resource. If the first resource indication information indicates multiple (including two) first frequency domain resources, the first terminal device may determine a third frequency domain resource used to carry the first signal from at least one first frequency domain resource, That is, S440 in FIG. 9 .
  • the first terminal device determines the third frequency domain resource for carrying the first signal from at least one first frequency domain resource, which may include the following two possible examples:
  • Example 1 The network device configures the third frequency domain resource to the first terminal device.
  • the network device sends third resource indication information to the first terminal device, where the third resource indication information includes an identifier (such as an index) of the third frequency domain resource, and correspondingly, the first terminal device receives the third resource information sent by the network device Instructions.
  • the third resource indication information includes an identifier (such as an index) of the third frequency domain resource
  • the first terminal device receives the third resource information sent by the network device Instructions.
  • each first frequency domain resource corresponds to an index (value).
  • the network device may further configure the third frequency domain resource to the second terminal device.
  • Example 2 The first terminal device determines the third frequency domain resource according to a predefined rule. Specifically, the following four possible implementation manners may be included.
  • the first terminal device determines the third frequency domain resource according to its identifier and the quantity of the first frequency domain resource configured by the network device.
  • the first terminal device may determine the third frequency domain resource according to the following formula (9), that is, determine the first frequency domain resource identified as Q1 among the at least one first frequency domain resource.
  • the first terminal device determines the third frequency domain resource according to its service type and a first correspondence relationship, where the first correspondence relationship is a correspondence relationship between the service type and the first frequency domain resource identifier.
  • the service type may include reduced capability (reduced capability, REDCAP), enhanced mobile bandwidth (enhanced mobile broadband, eMBB), Internet of Things or non-Internet of Things, and the like.
  • reduced capability reduced capability
  • REDCAP reduced capability
  • enhanced mobile bandwidth enhanced mobile broadband
  • eMBB enhanced mobile broadband
  • REDCAP corresponds to the first frequency domain resource 1
  • eMBB corresponds to the first frequency domain resource 2
  • the Internet of Things corresponds to the first frequency domain resource 1
  • non-IoT terminals correspond to the first frequency domain resource 2, etc.
  • the third frequency domain resource is the first frequency domain resource 1 in the at least one first frequency domain resource.
  • Implementation manner three the first terminal device determines the third frequency domain resource according to its paging probability and the second corresponding relationship, and the second corresponding relationship is the corresponding relationship between the paging probability and the first frequency domain resource identifier.
  • a paging probability value may correspond to a first frequency domain resource identifier, or a paging probability interval may correspond to a first frequency domain resource identifier.
  • the paging probability intervals do not overlap.
  • the paging probability interval 1 corresponds to the first frequency domain resource 1
  • the paging probability interval 2 corresponds to the first frequency domain resource 2, and so on.
  • the third frequency domain resource of the first terminal device is the first frequency domain resource 2 in the at least one first frequency domain resource.
  • Implementation manner four the first terminal device determines the third frequency domain resource according to its identifier and the weight corresponding to each first frequency domain resource in the at least one first frequency domain resource.
  • the weights corresponding to the m first frequency domain resources are W(0), W(1), W(2)...W(m) in sequence.
  • the first terminal device may determine a minimum value i that makes the following formula (10) valid according to the following formula (10), where the minimum value i is an identifier of a first frequency domain resource in at least one first frequency domain resource, and the first The frequency domain resource is the third frequency domain resource.
  • W is the sum of the weights from W(0) to W(i).
  • the second terminal device may determine the third frequency domain resources.
  • UE_ID can also be other identifiers assigned by network equipment, which are used to distinguish terminal equipment when receiving the first signal. The value range can be less than or equal to 1024.
  • the network equipment can be an access network equipment or a core network equipment.
  • the first terminal device may send the first signal on the third frequency domain resource determined in S440 above. As shown above, the first signal may be sent by the network device or by the second terminal device.
  • the first signal may be transmitted on the third frequency domain resource determined in S440 above.
  • a certain guard band (or called a guard band) needs to be reserved between the first signals. Based on this, the bandwidth of the first signal may be smaller than the bandwidth of the third frequency domain resource carrying the first signal.
  • the center frequency point of the first signal is the same as the center frequency point of the third frequency domain resource carrying the first signal.
  • the resource position of the first signal in the third frequency domain resource (for example, the bandwidth of the first signal and/or the position of the center frequency point) may be predefined or configured by the network device.
  • the network device may send second resource indication information to the first terminal device, where the second resource indication information is used to indicate the resource position of the first signal in the first frequency domain resource (for example, the first signal bandwidth and/or center frequency location). It can be understood that, after the first terminal device determines the third frequency domain resource, the second resource indication information is used to indicate the resource position of the first signal in the third frequency domain resource.
  • the second resource indication information is used to indicate the resource position of the first signal in the third frequency domain resource.
  • the second resource indication information and the first resource indication information may be sent together by the network device, or the second resource indication information may be sent as independent resource indication information.
  • this embodiment of the present application does not limit the order in which the network device sends the first resource indication information and the second resource indication information.
  • the first terminal device sends capability information to the network device, and correspondingly, the network device receives the capability information sent by the first terminal device.
  • the capability information may be used to indicate at least one of the following:
  • Frequency band information supported by the wake-up receiver of the first terminal device may be, for example, a frequency band identifier
  • the bandwidth supported by the wake-up receiver of the first terminal device may be a value of the bandwidth, such as 100kHz, 3MHz or 6RB, etc.;
  • the bandwidth supported by the radio frequency filter of the wake-up receiver of the first terminal device which may also be the value of the above-mentioned bandwidth
  • the center frequency point of the RF filter of the wake-up receiver of the first terminal device is the center frequency point of the RF filter of the wake-up receiver of the first terminal device.
  • S410 may be performed before S420 in the embodiment shown in FIG. 9 , for example.
  • the network device may determine whether to configure at least one first frequency domain resource for the first terminal device according to the capability information reported by the first terminal device.
  • a terminal device sends at least one of first resource indication information, second resource indication information, and third resource indication information.
  • the network device may determine the configured frequency band, bandwidth, and/or central frequency point, etc. of the first frequency domain resource according to the capability information reported by the first terminal device.
  • the first terminal device may send the foregoing capability information through the main receiver.
  • the first terminal device may report the above capability information through the four-step random access process or an uplink message in the four-step random access process; or the first terminal device may report the above-mentioned capability information through the terminal device capability information or the terminal device auxiliary message. capability information.
  • the resource location of the first frequency domain resource in this embodiment (for example, the first The start position and/or end position of the frequency domain resource) and/or the bandwidth of the first frequency domain resource need to meet the restriction of an integer multiple of the first value.
  • the first numerical value has been described in the foregoing examples, and will not be repeated here.
  • the first terminal device may determine the first frequency domain resource used to bear the first signal by receiving the first resource indication information sent by the network device, and receive the resource used for carrying the first signal on the first frequency domain resource.
  • the first signal to wake itself up.
  • the embodiment of the present application proposes an effective solution for how the first terminal device determines the frequency domain resource carrying the signal for waking it up, so that the first terminal device can Wake-up is implemented in various communication systems (eg, NR communication systems).
  • Fig. 10 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the apparatus 500 may include: a transceiver unit 510 and a processing unit 520 .
  • the communication device 500 may correspond to the first terminal device in the above method embodiments, for example, it may be the first terminal device, or a component configured in the first terminal device (such as a chip or a chip system, etc. ).
  • the communication apparatus 500 may correspond to the first terminal device in the method shown in FIG. 7a, 6b and FIG. 9 according to the embodiment of the present application, and the communication apparatus 500 may include a A unit of the method executed by the first terminal device in the method. Moreover, each unit and the above-mentioned other operations and/or functions in the communication device 500 are respectively for realizing the corresponding flow of the method in FIG. 7a, 6b and FIG. 9 .
  • the embodiment of the present application provides a communication device, which includes: a transceiver unit 510 that can be used to receive a first resource indication from a network device information, the first resource indication information is used to indicate at least one first frequency domain resource; the transceiver unit 510 is also used to receive a first signal on the first frequency domain resource, and the first signal is used to wake up the first terminal equipment.
  • the communication device is in the first state when the transceiver unit 510 receives the first resource indication information from the network device, and the communication device is in the second state when the transceiver unit 510 receives the first signal.
  • the first state and the second state correspond to different power states.
  • the transceiving unit 510 is specifically configured to: receive the first resource indication information from the network device through the main receiver.
  • the transceiving unit 510 is specifically configured to: receive the first signal on the first frequency domain resource by waking up a receiver.
  • the modulation mode of the first signal is on-off keying OOK modulation or frequency shift keying FSK modulation.
  • the at least one first frequency domain resource corresponds to at least one first frequency domain unit of the second frequency domain resource
  • the second frequency domain resource includes a plurality of frequency domain units
  • the plurality of frequency domain resources The bandwidth of each frequency domain unit in the unit is predefined, and the multiple frequency domain units include the at least one first frequency domain unit.
  • the first resource indication information is used to indicate the at least one first frequency domain unit.
  • the first resource indication information includes at least one piece of first indication information, and the first indication information is used to indicate the identity of the first frequency domain unit.
  • the first resource indication information includes a first bitmap, the bits of the first bitmap correspond to the multiple frequency domain units one by one, and the bits in the first bitmap are used to indicate the corresponding frequency domain units. Whether the domain unit is the first frequency domain unit.
  • the multiple frequency domain units are obtained by dividing the second frequency domain resource according to the preset bandwidth starting from the first frequency domain position, and the first frequency domain position is the second frequency domain resource The starting position of the domain resource, or the first frequency domain position does not belong to the second frequency domain resource, and the second frequency domain resource is a frequency domain resource corresponding to the transmission bandwidth of the first terminal device.
  • the first frequency domain location is a common reference point.
  • the first resource indication information includes at least one second indication information
  • the second indication information includes a resource indication value RIV, where the RIV is used to indicate the starting position and bandwidth of the first frequency domain resource.
  • the transceiving unit 510 is further configured to: receive transmission bandwidth indication information from the network device, where the transmission bandwidth indication information is used to indicate the identity of the transmission bandwidth corresponding to the at least one first frequency domain resource.
  • the transmission bandwidth of the communication device is a downlink partial bandwidth BWP or a downlink carrier bandwidth.
  • the downlink BWP includes one of the following: a BWP corresponding to the wake-up receiver of the first terminal device; an initial downlink BWP; an activated downlink BWP; and a default downlink BWP.
  • the start position, end position or bandwidth of the first frequency domain resource is an integer multiple of a first value, and the first value is determined based on n first parameters, where n is a positive integer.
  • n is equal to 1, and the first value is the value of the first parameter; n is greater than 1, and the first value is the least common multiple or the greatest common divisor of the values of the n first parameters.
  • the n first parameters include at least one of the following: the frequency domain configuration granularity of the downlink reference signal of the second frequency domain resource; the frequency domain configuration granularity of the control resource set of the second frequency domain resource; The size of the resource block group RBG of the second frequency domain resource; the bandwidth supported by the wake-up receiver of the first terminal device; the bandwidth supported by the radio frequency filter of the wake-up receiver of the first terminal device; the bandwidth of the first terminal device Wake up the center frequency of the RF filter of the receiver.
  • the transceiving unit 510 sends capability information to the network device, where the capability information is used to indicate at least one of the following: whether the communication device supports wake-up receivers; frequency band information supported by the wake-up receiver of the communication device; The bandwidth supported by the wake-up receiver of the communication device; the bandwidth supported by the radio frequency filter of the wake-up receiver of the communication device; the center frequency point of the radio frequency filter of the wake-up receiver of the communication device.
  • the bandwidth of the first signal is smaller than the bandwidth of the first frequency domain resource carrying the first signal.
  • the center frequency point of the first signal is the same as the center frequency point of the first frequency domain resource carrying the first signal.
  • the transceiving unit 510 receives second resource indication information from the network device, where the second resource indication information is used to indicate the resource position of the first signal in the first frequency domain resource.
  • the processing unit 520 may be configured to determine a third frequency domain resource for carrying the first signal from the at least one first frequency domain resource; receive the first signal.
  • the transceiving unit 510 is further configured to: receive third resource indication information from the network device, where the third resource indication information includes an identifier of the third frequency domain resource.
  • the processing unit 520 is further configured to: determine the third frequency domain resource according to its identifier and the quantity of the first frequency domain resource configured by the network device; or, according to its service type and the first corresponding relationship , determine the third frequency domain resource, the first correspondence is the correspondence between the service type and the first frequency domain resource identifier; or, determine the third frequency domain resource according to its paging probability and the second correspondence , the second correspondence is the correspondence between the paging probability and the identifier of the first frequency domain resource; or, according to the identifier and the weight corresponding to each first frequency domain resource in the at least one first frequency domain resource, determine The third frequency domain resource.
  • transceiver unit 510 can be used to execute S310a and S320a in the method shown in FIG. 7a, S310b and S320b in FIG. 7b, and S410 to S430, S450, and S460 in FIG. S440 in the method. It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
  • the communication apparatus 500 may correspond to the network device in the foregoing method embodiments, for example, may be a network device, or a component configured in the network device (eg, a chip or a chip system, etc.).
  • the communication device 500 may correspond to the network device in the method shown in Fig. 7a, 7b and Fig. 9 according to the embodiment of the present application, and the communication device 500 may include a method for executing the method in Fig. 7a, 7b and Fig. 9 An element of a method performed by a network device. Moreover, each unit and the above-mentioned other operations and/or functions in the communication device 500 are respectively for realizing the corresponding flow of the method in FIG. 7a, 6b and FIG. 9 .
  • the embodiment of the present application provides a communication device, which includes: a processing unit 520 can be used to determine at least one first frequency domain resource, the The first frequency domain resource is used to carry a first signal, and the first signal is used to wake up the first terminal device; the transceiver unit 510 can be used to send first resource indication information to the first terminal device, and the first resource indication information is used to indicate The at least one first frequency domain resource.
  • the transceiving unit 510 is further configured to: send the first signal to the first terminal device on the first frequency domain resource.
  • the transceiving unit 510 when the transceiving unit 510 sends the first resource indication information to the first terminal device, the first terminal device is in the first state, and when the transceiving unit 510 sends the first signal to the first terminal device, the The first terminal device is in a second state, and the first state and the second state correspond to different power states.
  • the at least one first frequency domain resource corresponds to at least one first frequency domain unit of the second frequency domain resource
  • the second frequency domain resource includes a plurality of frequency domain units
  • the plurality of frequency domain resources The bandwidth of each frequency domain unit in the unit is predefined, and the multiple frequency domain units include the at least one first frequency domain unit.
  • the first resource indication information includes a first bitmap, the bits of the first bitmap correspond to the multiple frequency domain units one by one, and the bits in the first bitmap are used to indicate the corresponding frequency domain units. Whether the domain unit is the first frequency domain unit.
  • the multiple frequency domain units are obtained by dividing the second frequency domain resource according to the preset bandwidth starting from the first frequency domain position, and the first frequency domain position is the second frequency domain resource The starting position of the domain resource, or the first frequency domain position does not belong to the second frequency domain resource, and the second frequency domain resource is a frequency domain resource corresponding to the transmission bandwidth of the first terminal device.
  • the first frequency domain location is a common reference point.
  • the transmission bandwidth of the first terminal device is a downlink partial bandwidth BWP or a downlink carrier bandwidth.
  • transceiver unit 510 may be used to execute S310a and S320a in the method shown in FIG. 7a , S310b and S320b in FIG. 7b , and S410 to S430, S450, and S460 in the method shown in FIG. 9 . It should be understood that the specific process for each unit to perform the above corresponding steps has been described in detail in the above method embodiments, and for the sake of brevity, details are not repeated here.
  • the transceiver unit 510 in the communication device 500 may be implemented by a transceiver, for example, it may correspond to the transceiver 610 in the communication device 600 shown in FIG. 11 , the communication device 500
  • the processing unit 520 in may be implemented by at least one processor, for example, may correspond to the processor 620 in the communication device 600 shown in FIG. 11 .
  • the transceiver unit 510 in the communication device 500 can be implemented by a transceiver, for example, it can correspond to the transceiver 610 in the communication device 600 shown in FIG.
  • the processing unit 520 may be implemented by at least one processor, for example, may correspond to the processor 620 in the communication device 600 shown in FIG. 11 .
  • the transceiver unit 510 in the communication device 500 can be implemented through an input/output interface, a circuit, etc.
  • the communication The processing unit 520 in the device 500 may be implemented by a processor, a microprocessor, or an integrated circuit integrated on the chip or the chip system.
  • Fig. 11 is another schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 600 may include: a transceiver 610 , a processor 620 and a memory 630 .
  • the transceiver 610, the processor 620 and the memory 630 communicate with each other through an internal connection path, the memory 630 is used to store instructions, and the processor 620 is used to execute the instructions stored in the memory 630 to control the transceiver 610 to send signals and /or to receive a signal.
  • the communication apparatus 600 may correspond to the first terminal device or network device in the above method embodiments, and may be used to execute various steps and/or processes performed by the first terminal device or network device in the above method embodiments.
  • the memory 630 may include read-only memory and random-access memory, and provides instructions and data to the processor. A portion of the memory may also include non-volatile random access memory.
  • the memory 630 can be an independent device, or can be integrated in the processor 620 .
  • the processor 620 may be used to execute the instructions stored in the memory 630, and when the processor 620 executes the instructions stored in the memory, the processor 620 is used to execute the above method embodiment corresponding to the first terminal device or network device individual steps and/or processes.
  • the communications apparatus 600 is the first terminal device in the foregoing embodiments.
  • the communications apparatus 600 is the network device in the foregoing embodiments.
  • the transceiver 610 may include a transmitter and a receiver.
  • the transceiver 610 may further include antennas, and the number of antennas may be one or more.
  • the processor 620, the memory 630 and the transceiver 610 may be devices integrated on different chips.
  • the processor 620 and the memory 630 may be integrated in a baseband chip, and the transceiver 610 may be integrated in a radio frequency chip.
  • the processor 620, the memory 630 and the transceiver 610 may also be devices integrated on the same chip. This application is not limited to this.
  • the communication apparatus 600 is a component configured in the first terminal device, such as a chip, a chip system, and the like.
  • the communication apparatus 600 is a component configured in a network device, such as a chip, a chip system, and the like.
  • the transceiver 610 may also be a communication interface, such as an input/output interface, a circuit, and the like.
  • the transceiver 610, the processor 620 and the memory 630 may be integrated in the same chip, for example, integrated in a baseband chip.
  • the present application also provides a processing device, including at least one processor, and the at least one processor is used to execute the computer program stored in the memory, so that the processing device executes the method performed by the first terminal device in the above method embodiment Internet equipment.
  • the embodiment of the present application also provides a processing device, including a processor and an input/output interface.
  • the input-output interface is coupled with the processor.
  • the input and output interface is used for inputting and/or outputting information.
  • the information includes at least one of instructions and data.
  • the processor is configured to execute a computer program, so that the processing device executes the method network device executed by the first terminal device in the above method embodiment.
  • the embodiment of the present application also provides a processing device, including a processor and a memory.
  • the memory is used to store a computer program
  • the processor is used to call and run the computer program from the memory, so that the processing device executes the method network device performed by the first terminal device in the above method embodiment.
  • the above processing device may be one or more chips.
  • the processing device may be a field programmable gate array (field programmable gate array, FPGA), an application specific integrated circuit (ASIC), or a system chip (system on chip, SoC). It can be a central processor unit (CPU), a network processor (network processor, NP), a digital signal processing circuit (digital signal processor, DSP), or a microcontroller (micro controller unit) , MCU), can also be a programmable controller (programmable logic device, PLD) or other integrated chips.
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • microcontroller micro controller unit
  • PLD programmable logic device
  • each step of the above method can be completed by an integrated logic circuit of hardware in a processor or an instruction in the form of software.
  • the steps of the methods disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or implemented by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware. To avoid repetition, no detailed description is given here.
  • the processor in the embodiment of the present application may be an integrated circuit chip, which has a signal processing capability.
  • each step of the above-mentioned method embodiments may be completed by an integrated logic circuit of hardware in a processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • a general-purpose processor may be a microprocessor, or the processor may be any conventional processor, or the like.
  • the steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, register.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories.
  • the non-volatile memory can be read-only memory (read-only memory, ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erases programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory can be random access memory (RAM), which acts as external cache memory.
  • RAM random access memory
  • SRAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM double data rate synchronous dynamic random access memory
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM direct memory bus random access memory
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product, the computer program product including: computer program code, when the computer program code is run on the computer, the computer is made to execute the first step in the above method embodiments A method performed by a terminal device or a network device.
  • the present application also provides a computer-readable storage medium, the computer-readable storage medium stores program codes, and when the program codes are run on a computer, the computer is made to execute the above-mentioned method embodiments A method executed by a first terminal device or a network device.
  • the present application further provides a communication system, where the communication system may include the aforementioned first terminal device and network device.
  • a component may be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and the computing device can be components.
  • One or more components can reside within a process and/or thread of execution and a component can be localized on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on a signal having one or more packets of data (e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems). Communicate through local and/or remote processes.
  • packets of data e.g., data from two components interacting with another component between a local system, a distributed system, and/or a network, such as the Internet via a signal interacting with other systems.
  • the disclosed systems, devices and methods may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components can be combined or May be integrated into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • the computer software product is stored in a storage medium and includes several instructions to make a A computer device (which may be a personal computer, a server, or a network device, etc.) executes all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: various media capable of storing program codes such as U disk, mobile hard disk, ROM, RAM, magnetic disk or optical disk.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente demande concerne un procédé et un appareil de communication, un dispositif et un support de stockage. Le procédé comprend les étapes suivantes : un premier dispositif terminal reçoit des premières informations d'indication de ressource en provenance d'un dispositif de réseau, les premières informations d'indication de ressource étant utilisées pour indiquer au moins une première ressource de domaine fréquentiel; le premier dispositif terminal reçoit un premier signal sur la première ressource de domaine fréquentiel, le premier signal étant utilisé pour réveiller le premier dispositif terminal. Les modes de réalisation de la présente demande apportent une solution efficace à un mode de détermination, par le premier dispositif terminal, d'une ressource de domaine fréquentiel transportant un signal utilisé pour réveiller le premier dispositif terminal, de telle sorte que le premier dispositif terminal peut être réveillé dans différents systèmes de communication (tels qu'un système de communication NR).
PCT/CN2022/137343 2021-12-24 2022-12-07 Procédé et appareil de communication, dispositif et support de stockage WO2023116441A1 (fr)

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