WO2023125091A1 - 通信方法及装置 - Google Patents

通信方法及装置 Download PDF

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Publication number
WO2023125091A1
WO2023125091A1 PCT/CN2022/139869 CN2022139869W WO2023125091A1 WO 2023125091 A1 WO2023125091 A1 WO 2023125091A1 CN 2022139869 W CN2022139869 W CN 2022139869W WO 2023125091 A1 WO2023125091 A1 WO 2023125091A1
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WIPO (PCT)
Prior art keywords
information
pieces
frequency domain
different
data transmission
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PCT/CN2022/139869
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English (en)
French (fr)
Inventor
李锐杰
官磊
李胜钰
Original Assignee
华为技术有限公司
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Priority to EP22914345.8A priority Critical patent/EP4443985A1/en
Publication of WO2023125091A1 publication Critical patent/WO2023125091A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0203Power saving arrangements in the radio access network or backbone network of wireless communication networks
    • H04W52/0206Power saving arrangements in the radio access network or backbone network of wireless communication networks in access points, e.g. base stations
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows

Definitions

  • the present application relates to the technical field of communication, and in particular to a communication method and device.
  • primary synchronization signal primary synchronization signal
  • secondary synchronization signal secondary synchronization signal
  • physical broadcast channel physical Broadcast Channel, PBCH
  • multicast channel carrying system information system information, SI
  • SI system information
  • NR new radio
  • the base station In order to improve coverage, the base station periodically sends multiple SSBs in the form of beam scanning, but the more SSBs are sent, the more time domain resources will be occupied, resulting in greater overhead of SSBs.
  • the embodiment of the present application discloses a communication method and device, which can reduce the time-domain overhead of sending the first information, reduce the sending power consumption of the network equipment, and thus facilitate the energy saving of the network equipment.
  • the first aspect of the embodiment of the present application discloses a communication method and device, including: generating N pieces of first information, the first information including one or more of the following: synchronization signal, system information; in the same time domain resource, and sending the N pieces of first information to the terminal device on N frequency domain resources, where the N frequency domain resources are in one-to-one correspondence with the N pieces of first information, and N is a positive integer greater than 1.
  • the time for sending the first information can be reduced without reducing the network coverage performance.
  • Domain overhead reducing the transmission power consumption of network equipment, is conducive to the energy saving of network equipment.
  • sending the N pieces of first information to the terminal device on the same time domain resource and N frequency domain resources includes: using the same time domain resource and N frequency domain resources Send the N pieces of identical first information to the terminal device.
  • the N pieces of identical first information refer to N pieces of repeated first information, that is, the N pieces of first information are N pieces of identical information.
  • the reliability of the transmission of the first information can be improved by repeatedly sending the same first information.
  • indexes of the N pieces of first information are the same.
  • the system information includes PBCH, and the N pieces of first information satisfy at least one of the following: information carried by a physical broadcast channel PBCH included in each of the N pieces of first information are the same; the demodulation reference signal DMRS of the PBCH included in each of the N pieces of first information is the same; or, the beam direction of each of the N pieces of first information is the same.
  • the sending the N pieces of first information to the terminal device on the same time domain resource and N frequency domain resources includes: using the same time domain resource and N frequency domain resources Send the N pieces of different first information to the terminal device on the resource.
  • the time domain overhead for sending the first information can be reduced, thereby saving network equipment transmit power consumption, so as to achieve the purpose of energy saving.
  • indexes of the N pieces of first information are different.
  • the system information includes PBCH, and the N pieces of first information satisfy at least one of the following: among the N pieces of first information, the information carried by the PBCH included in two pieces of first information is different. DMRSs of the PBCH included in two pieces of first information in the N pieces of first information are different; or, beam directions of two pieces of first information in the N pieces of first information are different.
  • the DMRS of the PBCH included in the two first pieces of information among the N first pieces of information is different; or the N first pieces of information
  • the information carried by the PBCH included in the two first pieces of information in the information is different; when the N is greater than the first preset value, the DMRS of the PBCH included in the two pieces of first information in the N pieces of first information is different , and there are two pieces of first information in the N pieces of first information, and the information carried by the PBCH is different, that is, when N is greater than the first preset value, there are two pieces of first information in the N pieces of first information
  • the DMRS of the included PBCH is different from the information carried by the PBCH.
  • the maximum number L of first information in the first period is less than or equal to the second preset value
  • the DMRS is different; when the number L of the largest first information in the first cycle is greater than the second preset value, there are two DMRSs of the PBCH included in the first information among the N first information that are different,
  • the information carried by the PBCH included in the two pieces of first information is different.
  • the first period is the duration for the network device to cyclically send N*K pieces of first information, and N*K is the maximum number of first pieces of information in the cell.
  • the N is predefined by the protocol.
  • an interval between center frequency domain positions of two adjacent pieces of first information among the N pieces of first information is an integer multiple of a synchronization grid.
  • the terminal device can quickly determine the frequency domain position of each of the N pieces of first information, reducing time consumption.
  • the frequency domain position of each first information in the N pieces of first information is determined by the frequency domain position of the first reference information, and the first reference information belongs to the N first pieces of information. information.
  • the center frequency domain position of the first reference information is determined according to a synchronization grid.
  • the frequency domain position of each of the N pieces of first information is determined by the frequency domain position of the first reference information, including: each of the N pieces of first information
  • the frequency domain position of the first information is determined by the frequency domain position of the first reference information and a predefined pattern, where the predefined pattern includes an arrangement among the N pieces of first information.
  • the time-frequency domain resource corresponding to the second reference information among the N pieces of first information cannot be used for downlink data transmission, and the N pieces of first information except the second reference information Time-frequency domain resources corresponding to the one or more pieces of first information can be used for downlink data transmission, and the second reference information is one piece of first information in the N pieces of first information.
  • the time-frequency resources corresponding to the second reference information cannot be used for downlink transmission, which can avoid that when the time-frequency domain resources corresponding to each first information in the N first information are used for downlink data transmission, some terminals
  • the situation that the device cannot access the network device can also avoid the situation that the downlink measurement based on the first information will be affected when the time-frequency domain resources corresponding to each of the first information in the N pieces of first information are used for downlink data transmission , so as to minimize the impact of downlink data transmission.
  • the group downlink control information DCI or trigger signaling indicates the time-frequency domain resource corresponding to one or more first information in the N pieces of first information except the second reference information Can be used for downlink data transmission.
  • the group downlink control information DCI or trigger signaling indicates the time-frequency domain resource corresponding to one or more first information in the N pieces of first information except the second reference information It can be used for downlink data transmission, including: the frequency domain resources occupied by the set of DCI or trigger signaling belong to the first frequency band, and one or more first information items in the N pieces of first information other than the second reference information occupy The frequency domain resources in the time-frequency domain resources belong to the second frequency band.
  • the time-frequency resources corresponding to the R pieces of first information among the N pieces of first information are used for first downlink data transmission, and among the N pieces of first information, there are (N-R)th
  • the time-frequency resource corresponding to a piece of information is not used for downlink data transmission, and the space configuration of the (N-R) first pieces of information is the same as the space configuration of the first downlink data transmission, both of which are the first space configuration, and the R is less than or A positive integer equal to N;
  • the airspace configuration of the N first pieces of information is the second airspace configuration; wherein, the first airspace configuration and The second airspace configuration is different.
  • when none of the time-frequency domain resources corresponding to the N pieces of first information is used for downlink data transmission may refer to when all the time-frequency domain resources corresponding to the N pieces of first information are used for first information transmission.
  • the first airspace configuration corresponds to a first beamwidth
  • the second airspace configuration corresponds to a second beamwidth
  • the method further includes: sending first indication information to the terminal device, the first The indication information is used to indicate the first beam width or the second beam width.
  • S*N*K pieces of first information are sent to the terminal device within S first periods and N frequency domain positions, where K is each of the S first periods
  • K is each of the S first periods
  • N*K different first messages are sent in each first cycle
  • the N*K first messages in each first cycle correspond to N*K different index
  • the N*K first pieces of information in the S first periods of each frequency domain position in the N frequency domain positions correspond to N*K different indexes
  • any frequency domain position in the N frequency domain positions Include N*K first information with different indexes in the S first period
  • the first period is the duration for the network device to cyclically send N*K first information, wherein, the S is equal to N, and the K is greater than or equal to A positive integer of 1, the S is a positive integer greater than or equal to 1, Indicates rounding up.
  • S*N*K pieces of first information are sent to the terminal device within S first periods and N frequency domain positions, where K is each of the S first periods The number of time domain positions in the first cycle, N*K different first messages are sent in each first cycle, and the N*K first messages in each first cycle correspond to N*K different Indexes, the N*K first pieces of information in the S first cycles of each of the N frequency domain positions correspond to N*K different indexes, and the i frequency domain positions of the N frequency domain positions exist
  • a first period includes N*K first information with different indexes, and the first period is the duration for the network device to cyclically send N*K first information, wherein, the S is equal to N, and the K is greater than or equal to 1 positive integer, the S is a positive integer greater than or equal to 1, Indicates rounding up, and the i is a positive integer greater than 1.
  • the second aspect of the embodiment of the present application discloses a communication method and device, and the beneficial effect can be referred to the first aspect.
  • receiving one or more of the N pieces of first information from the network device on the same time domain resource and N frequency domain resources includes: using the same time domain resource, and receiving one or more of the N pieces of identical first information from the network device on the N frequency domain resources.
  • indexes of the N pieces of first information are the same.
  • the system information includes PBCH, and the N pieces of first information satisfy at least one of the following: information carried by a physical broadcast channel PBCH included in each of the N pieces of first information are the same; the demodulation reference signal DMRS of the PBCH included in each of the N pieces of first information is the same; the beam direction of each of the N pieces of first information is the same.
  • the N pieces of first information are N pieces of different information, and the N pieces of first information received from the network device on the same time domain resource and N frequency domain resources One or more, including: receiving one or more of N different pieces of first information from the network device on the same time domain resource and N frequency domain resources.
  • indexes of the N pieces of first information are different.
  • the system information includes PBCH, and the N pieces of first information satisfy at least one of the following: among the N pieces of first information, the information carried by the PBCH included in two pieces of first information is different. DMRSs of the PBCH included in two pieces of first information in the N pieces of different first information are different; or, beam directions of two pieces of first information in the N pieces of first information are different.
  • the DMRS of the PBCH included in the two first pieces of information among the N first pieces of information is different; or the N first pieces of information
  • the information carried by the PBCH included in the two first pieces of information in the information is different; when the N is greater than the first preset value, the DMRS of the PBCH included in the two pieces of first information in the N pieces of first information is different , and there are two pieces of first information in the N pieces of first information, and the information carried by the PBCH is different, that is, when N is greater than the first preset value, there are two pieces of first information in the N pieces of first information
  • the DMRS of the included PBCH is different from the information carried by the PBCH.
  • the maximum number L of first information in the first period is less than or equal to the second preset value
  • the DMRS is different; when the number L of the largest first information in the first cycle is greater than the second preset value, there are two DMRSs of the PBCH included in the first information among the N first information that are different,
  • the information carried by the PBCH included in the two pieces of first information is different.
  • the N is predefined by the protocol.
  • an interval between center frequency domain positions of two adjacent pieces of first information among the N pieces of first information is an integer multiple of a synchronization grid.
  • the frequency domain position of each first information in the N pieces of first information is determined by the frequency domain position of the first reference information, and the first reference information belongs to the N first pieces of information. information.
  • the time-frequency domain resource corresponding to the second reference information among the N pieces of first information cannot be used for downlink data transmission, and the N pieces of first information except the second reference information Time-frequency domain resources corresponding to the one or more pieces of first information can be used for downlink data transmission, and the second reference information is one piece of first information in the N pieces of first information.
  • the N pieces of first information there are time-frequency resources corresponding to R pieces of first information used for first downlink data transmission, and among the N pieces of first information, there are (N-R)th
  • the time-frequency resource corresponding to a piece of information is not used for downlink data transmission, and the space configuration of the (N-R) first pieces of information is the same as the space configuration of the first downlink data transmission, both of which are the first space configuration;
  • the R is less than or A positive integer equal to N;
  • the airspace configuration of the N first pieces of information is the second airspace configuration; wherein, the first airspace configuration and The second airspace configuration is different.
  • the N pieces of first information belong to N*K pieces of first information, and the N*K pieces of information are N*K different pieces of first information in the first period, and the terminal
  • the minimum time length for the device to detect the N*K pieces of first information is T, and the T is determined according to the N*K, the bandwidth of the terminal device, and the duration P of the first cycle, and each of the K The number of time domain positions within a cycle.
  • the number of first pieces of information that the terminal device can detect within the first period and within the bandwidth of the terminal device is M, and the T, N, and K , M satisfies the following relationship:
  • the third aspect of the embodiment of the present application discloses a communication device.
  • the communication device may be a network device or a chip in the network device.
  • the communication device includes a processing unit and a transceiver unit. , and sending N pieces of first information to the terminal device on N frequency domain resources, where the N frequency domain resources correspond to the N pieces of first information one by one, and the first information includes one or more of the following: synchronization Signal, system information; the N is a positive integer greater than 1.
  • the transceiving unit is configured to send the N pieces of identical first information to the terminal device on the same time domain resource and N frequency domain resources.
  • the N pieces of identical first information refer to N pieces of repeated first information, that is, the N pieces of first information are N pieces of identical information.
  • indexes of the N pieces of first information are the same.
  • the N pieces of first information satisfy at least one of the following: the information carried by the physical broadcast channel PBCH included in each of the N pieces of first information is the same; the N pieces of first information
  • the demodulation reference signal DMRS of the PBCH included in each first information in the first information is the same; or, the beam direction of each first information in the N pieces of first information is the same.
  • the transceiving unit is configured to send the N pieces of different first information to the terminal device on the same time domain resource and N frequency domain resources.
  • the N pieces of different first information are N pieces of different information.
  • indexes of the N pieces of first information are different.
  • the N pieces of first information satisfy at least one of the following items: among the N pieces of first information, the information carried by the PBCH contained in two pieces of first information is different; the N pieces of first information The DMRSs of the PBCH included in the two pieces of first information in the information are different; or, the beam directions of the two first pieces of information in the N pieces of first information are different.
  • an interval between center frequency domain positions of two adjacent pieces of first information among the N pieces of first information is an integer multiple of a synchronization grid.
  • the frequency domain position of each first information in the N pieces of first information is determined by the frequency domain position of the first reference information, and the first reference information belongs to the N first pieces of information. information.
  • the time-frequency domain resource corresponding to the second reference information among the N pieces of first information cannot be used for downlink data transmission, and the N pieces of first information except the second reference information Time-frequency domain resources corresponding to the one or more pieces of first information can be used for downlink data transmission, and the second reference information is one piece of first information in the N pieces of first information.
  • the time-frequency resources corresponding to the R pieces of first information among the N pieces of first information are used for first downlink data transmission, there are (N-R) pieces of the N pieces of first information
  • the time-frequency resource corresponding to the first information is not used for downlink data transmission, and the space configuration of the (N-R) pieces of first information is the same as the space configuration of the first downlink data transmission, both of which are the first space configuration; the R is less than Or a positive integer equal to N;
  • the airspace configuration of the N first pieces of information is the second airspace configuration; wherein, the first airspace configuration Different from this second airspace configuration.
  • when none of the time-frequency domain resources corresponding to the N pieces of first information is used for downlink data transmission may refer to when all the time-frequency domain resources corresponding to the N pieces of first information are used for first information transmission.
  • the transceiver unit is configured to send S*N*K pieces of first information to the terminal device within S first periods and N frequency domain positions, where K is the S number The number of time domain positions in each first cycle in a cycle, N*K different first messages are sent in each first cycle, and the N*K first messages in each first cycle correspond to N*K different indexes, the N*K first pieces of information in the S first periods of each frequency domain position in the N frequency domain positions correspond to N*K different indexes, and the N frequency domain positions Any position in the frequency domain includes N*K pieces of first information with different indexes within S first periods, and the first period is the duration for the network device to cyclically send N*K pieces of first information, where S is equal to N , the K is a positive integer greater than or equal to 1, the S is a positive integer greater than or equal to 1, Indicates rounding up.
  • the transceiver unit is configured to send S*N*K pieces of first information to the terminal device within S first periods and N frequency domain positions, where K is the S number The number of time domain positions in each first cycle in a cycle, N*K different first messages are sent in each first cycle, and the N*K first messages in each first cycle correspond to N*K different indexes, the N*K first pieces of information in the S first periods of each frequency domain position in the N frequency domain positions correspond to N*K different indexes, and the N frequency domain positions
  • the i frequency domain positions in A first period includes N*K first information with different indexes, and the first period is the duration for the network device to cyclically send N*K first information, wherein, the S is equal to the N, and the K is greater than or equal to A positive integer of 1, the S is a positive integer greater than or equal to 1, Indicates rounding up, and the i is a positive integer greater than or equal to 1.
  • the fourth aspect of the embodiment of the present application discloses a communication device, the communication device may be a terminal device or a chip in the terminal device, the communication device includes a processing unit and a transceiver unit, the transceiver unit is used to receive a or multiple pieces of first information, the one or multiple pieces of first information belong to N pieces of first information, and the N pieces of first information correspond to the same time-domain resources and N frequency-domain resources, wherein the N frequency-domain resources One-to-one correspondence with the N pieces of first information, where N is a positive integer greater than 1, and the first information includes one or more of the following: synchronization signal, system information.
  • the transceiving unit is configured to receive one or more of N pieces of identical first information from the network device on the same time domain resource and N frequency domain resources.
  • indexes of the N pieces of first information are the same.
  • the N pieces of first information satisfy at least one of the following: the information carried by the physical broadcast channel PBCH included in each of the N pieces of first information is the same; the N pieces of first information
  • the demodulation reference signal DMRS of the PBCH included in each first information in the first information is the same; the beam direction of each first information in the N pieces of first information is the same.
  • the N pieces of first information are N different pieces of information
  • the transceiver unit is configured to receive N information from the network device on the same time domain resource and N frequency domain resources. One or more of different first information.
  • indexes of the N pieces of first information are different.
  • the N pieces of first information satisfy at least one of the following items: among the N pieces of first information, the information carried by the PBCH contained in two pieces of first information is different; In the first information, the DMRSs of the PBCH included in the two pieces of first information are different; or, in the N pieces of first information, the beam directions of the two first pieces of information are different.
  • the interval between the central frequency domain positions of two adjacent pieces of first information among the N pieces of first information is an integer multiple of a synchronization grid.
  • the frequency domain position of each first information in the N pieces of first information is determined by the frequency domain position of the first reference information, and the first reference information belongs to the N first pieces of information. information.
  • the time-frequency domain resource corresponding to the second reference information among the N pieces of first information cannot be used for downlink data transmission, and the N pieces of first information except the second reference information Time-frequency domain resources corresponding to the one or more pieces of first information can be used for downlink data transmission, and the second reference information is one piece of first information in the N pieces of first information.
  • the time-frequency resources corresponding to the R pieces of first information among the N pieces of first information are used for the first downlink data transmission, there are (N-R) pieces of the N pieces of first information
  • the time-frequency resource corresponding to the first information is not used for downlink data transmission, and the space configuration of the (N-R) pieces of first information is the same as the space configuration of the first downlink data transmission, both of which are the first space configuration; the R is less than Or a positive integer equal to N;
  • the airspace configuration of the N first pieces of information is the second airspace configuration; wherein, the first airspace configuration Different from this second airspace configuration.
  • the N pieces of first information belong to N*K pieces of first information, and the N*K pieces of first information are N*K different pieces of first information in the first period.
  • the minimum time length for the terminal device to detect the N*K pieces of first information is T, and the T is determined according to the N*K, the bandwidth of the terminal device, and the duration P of the first cycle, and the K is each The number of time domain positions in the first cycle.
  • the number of first information that the terminal device can detect within the first period and the bandwidth of the terminal device is M, and the T, N, K, and M satisfy the following relation:
  • the fifth aspect of the embodiment of the present application discloses a communication device, including a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or transmit The signal of the processor is sent to other communication devices other than the communication device, and the processor is used to execute the method described in the first aspect through a logic circuit or executing code instructions.
  • the sixth aspect of the embodiment of the present application discloses a communication device, including a processor and an interface circuit, the interface circuit is used to receive signals from other communication devices other than the communication device and transmit them to the processor or transmit The signal of the processor is sent to other communication devices other than the communication device, and the processor is used to execute the method described in the second aspect through a logic circuit or executing code instructions.
  • the seventh aspect of the embodiments of the present application discloses a chip, the chip includes at least one processor and an interface circuit, and the at least one processor is used to execute computer program instructions to implement the method described in any one of the above aspects.
  • the eighth aspect of the embodiment of the present application discloses a computer-readable storage medium, where computer program instructions are stored in the computer-readable storage medium, and when the computer program instructions are run on a processor, any of the above-mentioned aspects can be realized the method described.
  • the ninth aspect of the embodiments of the present application discloses a computer program product, the computer program product includes computer program instructions, and when the computer program instructions are run on a computer, the method described in any one of the above aspects is implemented.
  • the tenth aspect of the embodiments of the present application discloses a communication system, including at least one communication device described in the fifth aspect and at least one communication device described in the sixth aspect.
  • FIG. 1 is a schematic structural diagram of a communication system 1000 provided by an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of an SSB provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of sending SSB provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method provided in an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a frequency domain resource provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of determining the central frequency domain position of the first information provided by the embodiment of the present application.
  • FIG. 7 is a schematic diagram of determining a frequency domain position of first information provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of whether time-frequency domain resources can be used for downlink data transmission according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of sending first information by a network device provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of sending first information by a network device provided in an embodiment of the present application.
  • FIG. 11 is a schematic diagram of sending first information by a network device provided in an embodiment of the present application.
  • Fig. 12 is a schematic diagram of a terminal device capable of detecting first information provided by an embodiment of the present application.
  • Fig. 13 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • Fig. 14 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system 1000 applied in an embodiment of the present application.
  • the communication system includes a radio access network 100 and a core network 200 , and optionally, the communication system 1000 may also include the Internet 300 .
  • the radio access network 100 may include at least one radio access network device (such as 110a and 110b in FIG. 1 ), and may also include at least one terminal (such as 120a-120j in FIG. 1 ).
  • the terminal is connected to the wireless access network device in a wireless manner, and the wireless access network device is connected to the core network in a wireless or wired manner.
  • the core network equipment and the wireless access network equipment can be independent and different physical equipment, or the functions of the core network equipment and the logical functions of the wireless access network equipment can be integrated on the same physical equipment, or it can be a physical equipment It integrates some functions of core network equipment and some functions of wireless access network equipment. Terminals and wireless access network devices may be connected to each other in a wired or wireless manner.
  • FIG. 1 is only a schematic diagram.
  • the communication system may also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1 .
  • the radio access network equipment can be a base station (base station), an evolved base station (evolved NodeB, eNodeB), a transmission reception point (transmission reception point, TRP), and the next generation in the fifth generation (5th generation, 5G) mobile communication system
  • Base station (next generation NodeB, gNB), the next generation base station in the sixth generation (6th generation, 6G) mobile communication system, the base station in the future mobile communication system or the access node in the WiFi system, etc.; it can also complete the base station part
  • a functional module or unit for example, can be a centralized unit (central unit, CU) or a distributed unit (distributed unit, DU).
  • the CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and also completes the function of the service data adaptation protocol (SDAP); the DU completes the functions of the base station
  • the functions of the radio link control layer and the medium access control (medium access control, MAC) layer can also complete the functions of part of the physical layer or all of the physical layer.
  • 3rd generation partnership project, 3GPP third generation partnership project
  • the radio access network device may be a macro base station (such as 110a in Figure 1), a micro base station or an indoor station (such as 110b in Figure 1), or a relay node or a donor node.
  • the embodiment of the present application does not limit the specific technology and specific equipment form adopted by the radio access network equipment.
  • a base station is used as an example of a radio access network device for description below.
  • a terminal may also be called terminal equipment, user equipment (user equipment, UE), mobile station, mobile terminal, and so on.
  • Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things ( internet of things, IOT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc.
  • Terminals can be mobile phones, tablet computers, computers with wireless transceiver functions, wearable devices, vehicles, drones, helicopters, airplanes, ships, robots, robotic arms, smart home devices, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal.
  • Base stations and terminals can be fixed or mobile. Base stations and terminals can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on aircraft, balloons and artificial satellites.
  • the embodiments of the present application do not limit the application scenarios of the base station and the terminal.
  • the helicopter or UAV 120i in FIG. base station for base station 110a, 120i is a terminal, that is, communication between 110a and 120i is performed through a wireless air interface protocol.
  • communication between 110a and 120i may also be performed through an interface protocol between base stations.
  • 120i compared to 110a, 120i is also a base station. Therefore, both the base station and the terminal can be collectively referred to as a communication device, 110a and 110b in FIG. 1 can be referred to as a communication device with a base station function, and 120a-120j in FIG. 1 can be referred to as a communication device with a terminal function.
  • the communication between the base station and the terminal, between the base station and the base station, and between the terminal and the terminal can be carried out through the licensed spectrum, the communication can also be carried out through the unlicensed spectrum, and the communication can also be carried out through the licensed spectrum and the unlicensed spectrum at the same time; Communications may be performed on frequency spectrums below megahertz (gigahertz, GHz), or communications may be performed on frequency spectrums above 6 GHz, or communications may be performed using both frequency spectrums below 6 GHz and frequency spectrums above 6 GHz.
  • the embodiments of the present application do not limit the frequency spectrum resources used for wireless communication.
  • the functions of the base station may also be performed by modules (such as chips) in the base station, or may be performed by a control subsystem including the functions of the base station.
  • the control subsystem including base station functions here may be the control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city.
  • the functions of the terminal may also be performed by a module (such as a chip or a modem) in the terminal, or may be performed by a device including the terminal function.
  • the base station sends a downlink signal or downlink information to the terminal, and the downlink information is carried on the downlink channel;
  • the terminal sends an uplink signal or uplink information to the base station, and the uplink information is carried on the uplink channel.
  • the terminal needs to establish a wireless connection with the cell controlled by the base station.
  • a cell with which a terminal has established a wireless connection is called a serving cell of the terminal.
  • the terminal communicates with the serving cell, it will also be interfered by signals from neighboring cells.
  • Synchronization signal and physical broadcast channel block (synchronization signal and physical broadcast channel block, SSB), SSB includes primary synchronization signal (primary synchronization signal, PSS), secondary synchronization signal (secondary synchronization signal, SSS) and physical broadcast channel ( physical broadcast channel, PBCH). It is mainly used for cell search, cell synchronization, bearer cell identity number (CI), downlink timing, and acquisition of system information.
  • the SSB mainly has two functions: (1) Cell synchronization and master system information block (master information block, MIB) acquisition; (2) Network equipment sends beam (beam) training.
  • PSS and SSS carry the physical cell identifier (PCI)
  • the terminal device obtains the PCI by detecting the PSS and SSS
  • the PBCH of the SSB will carry the SSB index (index)
  • index corresponds to a sending position
  • the downlink timing synchronization is completed by detecting the SSB index and the detection time.
  • different SSBs in a cell are identified by SSB index.
  • An SSB pattern (SSB pattern) includes multiple SSB indexes. Different SSB indexes correspond to different transmission beams.
  • Terminal devices can detect SSBs and select the best SSB index to complete the training of network equipment transmission beams.
  • the specific time-frequency resource location of the SSB is uncertain, that is, the terminal device needs to detect the location of the SSB blindly.
  • the synchronization grid is defined in the current agreement, and the size of the synchronization grid is different in different frequency bands.
  • the synchronization grid may be 1.2 megahertz (MHz), 1.44 MHz and 17.28 MHz.
  • the terminal device tries to detect the SSB one by one at intervals of the synchronization grid, thereby increasing the speed of detecting the SSB by the terminal device.
  • the Global Synchronization Channel Number (GSCN) is used to mark the channel number of the SSB, and each GSCN corresponds to a frequency domain position SS REF of an SSB, and the GSCN is numbered in ascending order of the frequency domain .
  • the terminal device blindly checks the SSB sequentially on these GSCNs. It can be understood that the position of the SSB must meet the relationship of the synchronization grid, but there may or may not be an SSB on the frequency point determined according to the synchronization grid.
  • the SSB is composed of three parts: the main synchronization signal PSS, SSS, and PBCH.
  • An example of SSB is shown in FIG. 2 .
  • One SSB includes one symbol of PSS, one symbol of SSS and two symbols of PBCH.
  • the time-frequency resource occupied by the PBCH includes a demodulation reference signal (demodulation reference signal, DMRS), which is used for demodulation of the PBCH.
  • DMRS demodulation reference signal
  • a total of 4 orthogonal frequency division multiplexing (OFDM) symbols are occupied in the SSB time domain, numbered in ascending order from 0-3, and a total of 240 subcarriers are occupied in the frequency domain, that is, 20 physical resource blocks (physical resource blocks) block, PRB), 240 subcarriers (subcarrier, SC), and the subcarriers are numbered from 0 to 239.
  • the PSS is located in the middle 127 subcarriers of symbol 0.
  • the SSS is located in the middle 127 subcarriers of symbol 2; in order to protect the PSS and SSS, they have different subcarrier Set 0 at both ends.
  • PBCH is located in symbol 1/3 and symbol 2, where symbol 1/3 occupies all subcarriers from 0 to 239, and symbol 2 occupies all subcarriers except the subcarriers occupied by SSS and the subcarrier Set 0 that protects SSS.
  • the DMRS is located in the middle of the PBCH, on symbol 1/3, 60 on each symbol, separated by 4 subcarriers. It should be noted that what is shown in FIG. 3 is exemplary, and the present application does not limit the structure of the SSB, nor does it limit the number of time-domain symbols and subcarriers occupied by different parts of the SSB.
  • the base station periodically transmits multiple SSBs in the form of beam scanning, and the more SSBs in one period, the more time domain resources are occupied.
  • the problem of high resource overhead in the time domain is more prominent.
  • mmW millimeter wave
  • the time domain positions of SSB are divided into five different situations, namely Case A, Case B, Case C, Case D, and Case E, and the corresponding subcarrier intervals are 15 kilohertz (kHz), 30kHz, 60kHz, 120kHz, 240kHz.
  • the subcarrier spacing corresponding to Case D is 240kHz, and 64 SSBs need to be sent in one cycle, that is, one half-frame (Half-frame), as shown in Figure 3, the 64 The SSBs are SSB index#0 ⁇ SSB index#63 respectively, located in the first 4 subframes of a half-frame (Half-frame), and each subframe in the first 4 subframes includes 16 SSBs, wherein, in the first 4 subframes The first 4 SSBs included in the first subframe are SSB#0, SSB#1, SSB#2, SSB#3, each SSB occupies 4 OFDM symbols, SSB#0, SSB#1, SSB# 2.
  • the initial OFDM symbols corresponding to SSB#3 are #4, #8, #16, and #20 respectively. Therefore, the 64 SSBs need to occupy 64*4 OFDM symbols, and the resource overhead in the time domain is large. Therefore, in order to solve the above problem, the embodiment of the present application proposes the following solution.
  • the beam and space configuration can be replaced, and the beam or space configuration can also be understood as one or more of the following: space information, space filter configuration information, space filter configuration, receiving or sending the first The antenna pattern when the information is sent, and the spatial domain filter configuration used to receive or send the first information.
  • the same airspace configuration can also be understood as signal transmission using the same quasi-colocation properties (QCL).
  • QCL quasi-colocation properties
  • the channel characteristics of channel 1 are obtained through channel 2.
  • the quasi-co-location of A and B can be considered that the channel characteristics of B can be obtained from A.
  • the channel characteristic may include one or more items of Doppler shift, Doppler spread, average delay, delay spread and spatial domain parameters.
  • Figure 4 is a communication method provided by the embodiment of the present application, the method includes the following steps:
  • Step S401 the network device sends N pieces of first information to the terminal device on the same time domain resource and N frequency domain resources.
  • the first information may also be public information.
  • Public information can be understood as non-private information, or as information sent by one communication device to multiple communication devices.
  • the information sent by the base station to all terminal devices in the cell is public information.
  • the information sent by the base station to a group of terminal devices in the cell is also public information.
  • public information can be considered as transmitting the same information to a group of terminal devices.
  • the first information includes one or more of the following: synchronization signal, system information.
  • N is a positive integer greater than 1
  • the synchronization signal may be PSS and/or SSS
  • the system information may be PBCH or MIB.
  • the first information may also be called SSB.
  • the N frequency domain resources correspond to the N first pieces of information one by one, and it can also be said that one frequency domain resource corresponds to one piece of first information.
  • the N frequency domain resources are different, that is, the N frequency domain resources do not overlap.
  • the frequency domain range of the N frequency domain resources may be the frequency domain range of mmW, for example, the frequency domain range corresponding to the frequency range 2 (frequency range 2, FR2) frequency band is 24250MHz-52600MHz.
  • N is predefined by the protocol, or determined by the network device itself.
  • N is equal to 4 or 8.
  • the communication method shown in FIG. 4 further includes: S400: Generate N pieces of first information.
  • the N frequency domain resources are different, that is, the N frequency domain resources do not overlap.
  • the N frequency domain resources do not overlap which may indicate that any two frequency domain resources in the N frequency domain resources do not include the same resource element (resource element, RE).
  • RE resource element
  • the 4 frequency domain resources correspond to the same time domain resource, as shown in (a) in Figure 5, the 4 frequency domain resources There is a frequency domain interval between any two adjacent frequency domain resources in the resource, and there is no overlap between the 4 frequency domain resources; as shown in (b) in Figure 5, any of the 4 frequency domain resources There is no frequency domain interval between two adjacent frequency domain resources, and the four frequency domain resources do not overlap.
  • an interval between center frequency domain positions of two adjacent pieces of first information among the N pieces of first information is an integer multiple of a synchronization grid. That is, the center frequency domain position of each first information in the N pieces of first information may be determined according to the synchronization grid.
  • the center frequency domain position of the first information may refer to a center frequency point or a center frequency of the first information.
  • the interval between the center frequency domain positions of two adjacent first pieces of information in the N pieces of first information is an integer multiple of the synchronization grid, that is, the two adjacent pieces of first information in the N pieces of first information
  • the interval between the central frequency domain positions of a piece of information is A*V, wherein, V is the size of the synchronization grid, and A is a positive integer.
  • A may satisfy the following two conditions.
  • the first condition: A may satisfy the following condition: A*V is greater than or equal to a frequency domain resource occupied by the first information.
  • one piece of first information occupies 20 RBs, and when the subcarrier spacing is 15kHz, the frequency domain resource occupied by one piece of first information is 3.6MHz, that is to say, A*V should be greater than 3.6MHz.
  • A is the smallest integer that can guarantee the condition that A*V is greater than or equal to a frequency domain resource occupied by the first information.
  • a first piece of information occupies 20 RBs
  • the frequency domain resource occupied by a piece of first piece of information is 3.6MHz, in order to ensure that A*1.2 is greater than or equal to 3.6MHz
  • a It can be a positive integer greater than or equal to 3, that is to say, the minimum value of A is 3, and when A is a frequency domain resource that can ensure that A*V is greater than the first information, the value of A is 4.
  • one synchronization grid when N frequency domain resources are in the range of 0-3000MHz, one synchronization grid can be 1.2MHz; when N frequency domain resources are in the range of 3000-24250MHz, one synchronization grid can be 1.44MHz; Domain resources are in the range of 24250-100000MHz, and a synchronization grid can be 17.28MHz.
  • How to determine the center frequency domain position of each first piece of information according to the synchronization grid may refer to the determination of the frequency domain position of the SSB according to the synchronization grid above, which will not be repeated here.
  • the N frequency domain resources are in the range of 24250-100000 MHz, and the central frequency domain positions of two adjacent first information among the four first information
  • the interval of is a synchronous raster, wherein, a synchronous raster may be 17.28 MHz.
  • the distance between the central frequency domain positions of two adjacent first pieces of information in the N pieces of first pieces of information is an integer multiple of the synchronization grid, so that the terminal device can quickly determine the N pieces of first piece of information
  • the frequency domain position of each first information in the reduces time consumption.
  • the frequency domain position of each first information in the N pieces of first information is determined by the frequency domain position of the first reference information.
  • the first reference information is one piece of first information among the N pieces of first information.
  • the first reference information may be predefined by the protocol or configured by the network device.
  • the central frequency domain position of the first reference information may be determined according to the synchronization grid.
  • the first reference information may be the first information with the smallest occupied frequency domain resource index among the N first information, for example, the first information numbered 0 in Figure 7; or the first reference information is N Among the first information, the first information with the largest frequency-domain resource index occupied, for example, the first information numbered 3 in FIG. 7 .
  • the network device sends 4 pieces of first information to the terminal device on the same time domain resource and 4 frequency domain resources.
  • the occupied time domain resources are 4 symbols
  • the occupied 4 frequency domain resources are the 10th-29th RB, the 30th-49th RB, the 50th-69th RB, and the 70th-89th RB.
  • the 10th-29th RB refers to the RB with the index number 10-29
  • the 30th-49th RB refers to the RB with the index number 30-49
  • the 50th RB refers to the RB with the index number 30-49.
  • -69 RBs refer to the RBs whose index numbers are 50-69
  • the 70th-89th RBs refer to the RBs whose index numbers are 70-89
  • the index of the frequency domain resources of the 10th-29th RBs is the smallest
  • the 70th- The frequency domain resources of 89 RBs have the largest index.
  • the frequency domain position of each first information in the N first information is determined by the frequency domain position of the first reference information, which may include, the frequency domain position of each first information in the N first information It is determined by the frequency domain position of the first reference information and a predefined pattern, where the predefined pattern includes an arrangement among N pieces of first information.
  • the predefined style may also be predefined by the protocol.
  • the arrangement among the N pieces of first information may refer to whether there is an interval in the frequency domain between two adjacent first pieces of information in the N pieces of first information, where the interval in the frequency domain may or may not be 0.
  • the frequency domain position of each first information in the N pieces of first information is determined by the frequency domain position of the first reference information, so that the terminal device can quickly determine the frequency domain position of each of the N first pieces of information.
  • the frequency domain position of the first information reduces time consumption. For example, if the system bandwidth is 100MHz, if there is no synchronization grid, it needs to be detected every 1MHz, and it needs to be detected 100 times. If the synchronization grid is 10MHz, it only needs to be detected 10 times, so that N first information can be quickly determined The frequency domain position of each first message in .
  • the above describes the frequency domain position of each first information in the N pieces of first information, and then introduces whether the corresponding time-frequency domain resources in the N first pieces of information can be used for downlink data transmission.
  • the time-frequency domain resources corresponding to the second reference information among the N pieces of first information cannot be used for downlink data transmission, and the resources in the N pieces of first information other than the second reference information
  • the one or more time-frequency domain resources corresponding to the first information may be used for downlink data transmission.
  • the time-frequency domain resources corresponding to the third reference information among the N pieces of first information can be used for downlink data transmission, and the time-frequency domain resources corresponding to the first information other than the third reference information among the N pieces of first information Frequency domain resources cannot be used for downlink data transmission, wherein the third reference information can be understood as one or more first information except the second reference information, and the second reference information can be understood as one or more pieces of information other than the third reference information first information.
  • the fact that it can be used for downlink data transmission does not mean that it must be used for downlink transmission. It can be understood that when there is a transmission requirement, downlink data can be sent on the corresponding time-frequency resource.
  • the second reference information is one piece of first information in the N pieces of first information.
  • the second reference information may be the same as or different from the above-mentioned first reference information.
  • the second reference information may also be predefined by the protocol or configured by the network device.
  • the second reference information may be the first information with the smallest occupied frequency domain resource index among the N first information, for example, the first information numbered 0 in Figure 8; or the second reference information is the N first information Among the information, the first information with the largest frequency-domain resource index occupied, for example, the first information numbered 3 in FIG. 8 .
  • the details are as described above, and will not be repeated here.
  • the indication information sent by the network device may indicate whether the time-frequency domain resources corresponding to one or more first information in the N pieces of first information except the second reference information are used for downlink data transmission, for example , using group downlink control information (downlink control information, DCI) or trigger signaling to indicate whether the time-frequency domain resource corresponding to one or more first information in the N first information except the second reference information is used for Downlink data transmission.
  • group downlink control information downlink control information, DCI
  • trigger signaling to indicate whether the time-frequency domain resource corresponding to one or more first information in the N first information except the second reference information is used for Downlink data transmission.
  • the The frequency domain resource occupied by the group DCI or the trigger signaling belongs to the first frequency band, and the time-frequency domain occupied by one or more first information except the second reference information among the N first information used for downlink data transmission
  • the resource belongs to the second frequency band, where the range of the first frequency band may be 410MHz-7125MHz, and the frequency domain range of the second frequency band may be 24250MHz-52600MHz.
  • the group DCI can be understood as that a network device sends one DCI to multiple terminal devices, and correspondingly, the multiple terminal devices receive the one DCI, and for the multiple terminal devices, the information carried in the one group DCI is the same.
  • the group DCI can also be understood as the network device sending a group DCI to multiple terminal devices, and the group DCI includes information corresponding to the multiple terminal devices, that is, the respective information sent for multiple terminal devices can be Joint coding is carried in one DCI.
  • the multiple terminal devices parse their own information from the received group DCI.
  • the fourth reference information may be one or more pieces of first information that are not used to transmit downlink data among the N pieces of first information.
  • the fourth reference information may be one or more pieces of first information in the N pieces of first information located after the N pieces of first information in the time domain.
  • the N pieces of first information in period 1 The time-frequency domain resources corresponding to one or more first information except the second reference information are used for downlink data transmission, and the fourth reference information may be one or more of the N first information in period 2
  • the fourth reference information carries information for indicating that time-frequency domain resources corresponding to one or more first information in the N pieces of first information in period 1 except the second reference information are used for downlink data transmission
  • period 2 is the adjacent period after period 1 in the time domain.
  • the first information whose index is 1 predefined by the protocol is the second reference information
  • the time-frequency domain resource corresponding to the second reference information cannot be used for downlink data transmission
  • the first information whose index is 0, 1, and 3 corresponds to The time-frequency domain resources can be used for downlink data transmission.
  • the embodiment of the present application can provide more resources for downlink data transmission, and improve the performance of downlink data transmission.
  • the time-frequency resources corresponding to the second reference information cannot be used for downlink transmission, which can avoid that when the time-frequency domain resources corresponding to each of the first information in the N pieces of first information are used for downlink data transmission, some
  • the terminal device cannot access the network device, it can also avoid that the downlink measurement based on the first information will be affected when the time-frequency domain resources corresponding to each of the first information in the N pieces of first information are used for downlink data transmission situation, so as to minimize the impact of downlink data transmission.
  • the time-frequency resources corresponding to the R pieces of first information among the N pieces of first information are used for first downlink data transmission, there are (N-R) pieces of first information among the N pieces of first information
  • the corresponding time-frequency resources are not used for downlink data transmission, and the space configuration of the (N-R) first pieces of information is the same as the space configuration of the first downlink data transmission, and both are the first space configuration; wherein, R is less than or equal to N is a positive integer; when none of the time-frequency domain resources corresponding to the N pieces of first information is used for downlink data transmission, the airspace configuration of the N pieces of first information is the second airspace configuration.
  • when none of the time-frequency domain resources corresponding to the N pieces of first information is used for downlink data transmission may refer to when all the time-frequency domain resources corresponding to the N pieces of first information are used for transmission of the first information.
  • the first airspace configuration corresponds to the first beam width
  • the second airspace configuration corresponds to the second beam width.
  • the beam width may refer to the main lobe width of the antenna pattern when the network device sends the first information under a certain SSB pattern.
  • the second beam width may be greater than the first beam width.
  • the second beamwidth is 22.5 degrees
  • the first beamwidth is 2.8 degrees.
  • the network device may send first indication information to the terminal device, where the first indication information is used to indicate the first beam width or the second beam width;
  • the two airspace configurations correspond, and the first indication information may also be understood as indicating the first airspace configuration or the second airspace configuration.
  • the first indication information may be group DCI or trigger signaling, and frequency domain resources occupied by the group DCI or trigger signaling belong to a first frequency band, where the range of the first frequency band may be 410MHz-7125MHz.
  • this application proposes two optional ways.
  • Way 1 the network device sends N pieces of the same first information to the terminal device on the same time domain resource and N frequency domain resources.
  • the network device sends N pieces of different first information to the terminal device on the same time domain resource and N frequency domain resources. Therefore, the following embodiments are mainly divided into two parts for detailed description.
  • Method 1 The network device sends N pieces of the same first information to the terminal device on the same time domain resource and N frequency domain resources, that is, the N pieces of first information are N pieces of the same information, that is, the network The device sends N repeated pieces of first information to the terminal device on the same time domain resource and N frequency domain resources.
  • Example 1 the N pieces of first information have the same index, that is, the N pieces of first information include the same index.
  • the N pieces of first information may satisfy at least one of the following: the N pieces of first information include SSB, and the information carried by the PBCH included in each of the N pieces of first information is the same; or, the N pieces of first information include the same information;
  • the information includes SSB, and the DMRS of the PBCH included in each of the N first information is the same; the beam direction of each of the first information in the N first information is the same; each of the N first information
  • the synchronization signals included in the first information are the same; or, the beams of each first information in the N pieces of first information are the same.
  • the synchronous signals included in each first information are the same may mean that the PSS included in each first information is the same; it may also mean that the SSS included in each first information is the same; it may also mean that each The PSS and SSS included in the first piece of information are all the same; the same DMRS may mean that the DMRS sequences are the same; or, the same beam direction may mean that at least one of the following is the same: spatial domain information, spatial domain filter configuration Information, a spatial domain filter configuration, an antenna pattern when sending the first information, and a spatial domain filter used when sending the first information.
  • the DMRS refers to the DMRS included in the first information or the DMRS of the PBCH included in the first information.
  • N is predefined by the protocol or determined by the network device. For example, when the required network coverage is larger, N can be larger; when the required network coverage is smaller, N can be smaller. For example, for users at the edge of the cell, N may be larger; for users at the center of the cell, N may be smaller.
  • the first period includes 8 time domain positions, and each time domain position and the 4 frequency domain positions corresponding to each time domain position are used to send 4 first information with the same index, that is, the network device can The same time domain resource and four frequency domain resources are used to send four pieces of first information with the same index to the terminal device, for example, the first information with all four indexes being 1, and the first information with all four indexes being 2, The first message with all 4 indexes being 3, the first message with all 4 indexes being 4, the first message with all 4 indexes being 5, the first message with all 4 indexes being 6, and the first message with all 4 indexes being 7
  • the first information whose four indexes are all 8 for example, the first information whose four indexes are all 1, occupies the same time-domain resources, for example, the occupied time-domain resources are 4 symbols, and the occupied 4
  • the frequency domain resources are the 10th-29th RB, the 30th-49th RB, the 50th-69th RB, and the 70th-89th
  • the terminal device may jointly receive the N pieces of identical first information.
  • the reliability of the transmission of the first information can be improved by repeatedly sending the same first information.
  • Mode 2 The network device sends N pieces of different first information to the terminal device on the same time domain resource and N frequency domain resources. That is, the N pieces of first information are N pieces of different information. It can be understood that the multiplexing manner of the N pieces of first information is frequency division multiplexing. As for the N pieces of first information that are different, several different examples are given below, and it should be understood that different examples can be combined.
  • Example 1 N pieces of first information have different indexes, that is, N pieces of first information include different indexes.
  • the N pieces of first information may satisfy at least one of the following: the N pieces of first information include SSB, and the information carried by the PBCH contained in two pieces of first information in the N pieces of first information is different; or, the N pieces of first information include different information; One piece of information includes SSB, and the DMRS of the PBCH included in two pieces of first information in the N pieces of first information is different; the beam directions of the two pieces of first information in the N pieces of first information are different; the N pieces of first information Including the SSB, there are two pieces of first information among the N pieces of first information, including synchronization signals, which are different; or, beams of two pieces of first information among the N pieces of first information are different.
  • the N pieces of first information may satisfy at least one of the following: the information carried by the PBCH included in each of the N first pieces of information is not completely the same; each of the N first pieces of information includes The DMRS of the included PBCH is not completely the same; the beam direction of each first information in the N pieces of first information is not completely the same; the synchronization signal included in each of the N first pieces of information is not completely the same; Or, the beams of each first information in the N pieces of first information are not completely the same.
  • the fact that the information carried by the PBCH contained in two first pieces of information among the N pieces of first information is different may include the case that the information carried by the PBCH contained in each of the first pieces of information in the N pieces of first information is different.
  • the DMRSs of the PBCH included in the two pieces of first information are different. This may include the case that the DMRSs of the PBCH included in each of the N pieces of first information are different.
  • the information carried by the PBCH included in the two first pieces of information is different, which may mean that the DMRS of the PBCH carried by the two first pieces of information is the same, and the PBCH carried by the two first pieces of information information is different.
  • the DMRS of the PBCH included in the two first information in the N pieces of first information is different. It may mean that the information carried by the PBCH in the two first information is the same, but the DMRS of the PBCH in the two first information is different. .
  • the four pieces of first information are information 1, information 2, information 3, and information 4 respectively, wherein the DMRS of the PBCH of information 1 and information 2 are the same, and information 1 and information The information carried by the PBCH in 2 is different.
  • the four pieces of first information are information 1, information 2, information 3, and information 4, wherein the information carried by the PBCH of information 1 and information 2 is the same, and information 1 It is different from the DMRS of PBCH in information 2.
  • the synchronous signals included in the two first messages among the N first messages are different may mean that the PSSs included in the two first messages among the N first messages are different, or it may mean that the PSSs included in the N first messages are different.
  • There are two pieces of first information that include different SSSs or it may mean that there are two pieces of N first information that include different PSSs and SSSs.
  • DMRS are different may mean that DMRS sequences are different.
  • the different PBCHs may mean that information related to bearers and indexes in the PBCHs is different.
  • Different beam directions may mean that at least one of the following items is different, and at least one of the following items includes: spatial information, spatial filter configuration information, spatial filtering configuration, antenna pattern when sending the first information, sending the first information The spatial filter used.
  • the four pieces of first information are information 1, information 2, information 3, and information 4 respectively, and the information carried by the PBCH included in information 1 and information 2 is different, and information 1 and information 3 The information carried by the PBCH included in the information 4 is the same.
  • the four pieces of first information are information 1, information 2, information 3, and information 4 respectively, and the information carried by the PBCH included in information 1, information 2, information 3, and information 4 is equal to not the same.
  • the first period includes 2 time domain positions, and each time domain position and the 4 frequency domain positions corresponding to each time domain position are used to send 4 first information with different indexes, that is, the network device is in Send 4 different first messages to the terminal device on the same time domain resource and 4 frequency domain resources, for example, the indexes of the 4 first messages are 0, 1, 2, 3 respectively, which occupy the same time domain Resources, for example, the occupied time domain resources are 4 symbols, and the occupied 4 frequency domain resources are respectively the 10th-29th RB, the 30th-49th RB, the 50th-69th RB, and the 70th-89th RB;
  • the indexes of the four first pieces of information are 4, 5, 6, and 7 respectively, and they occupy the same time-domain resources, for example, the occupied time-domain resources are 4 symbols, and the occupied 4 frequency-domain resources are respectively the 10th-29th RB, 30th-49th RB, 50th-69th RB, 70th-89th RB.
  • the time domain overhead for sending the first information can be reduced, thereby saving network equipment transmit power consumption, so as to achieve the purpose of energy saving.
  • Example A When N is less than or equal to the first preset value, there are two PBCH DMRSs included in the first information among the N pieces of first information that are different; or there are two DMRSs included in the first information among the N first information.
  • the information carried by the PBCH is different.
  • the fact that the DMRSs of the PBCH included in the two pieces of first information in the N pieces of first information are different may mean that the information carried by the PBCH in which there are two pieces of first information is the same, and the information carried by the PBCH in the two pieces of first information is the same.
  • the DMRS of PBCH is different.
  • the fact that the information carried by the PBCH included in the two pieces of first information is different may mean that the DMRS of the PBCH of the two pieces of first information is the same, but the information carried by the PBCH of the two pieces of first information is different.
  • the DMRS of the PBCH included in the two first information in the N first information is different, and the information carried by the PBCH included in the two first information in the N first information is different.
  • the DMRSs of the PBCH included in the two first information in the N first information are different, and the information carried by the PBCH included in the two first information in the N first information is different, which can be understood as Among the N pieces of first information, the DMRSs of the PBCH included in the two pieces of first information are different, and the information carried by the PBCH included in the two pieces of first information is different.
  • the two pieces of first information that include different DMRSs of the PBCH and the two pieces of first information that include different information carried by the PBCH may be the same two pieces of first information.
  • the four pieces of first information are information 1, information 2, information 3, and information 4 respectively, where the DMRS of the PBCH included in information 1 and information 2 are different, and the information The information carried by the PBCH included in information 1 and information 2 is different.
  • the indices of the N pieces of first information are indicated by at least one of the following: DMRS sequence, and information carried by the PBCH. That is, for the N pieces of first information, different DMRS sequences may identify different indexes. For example, N is 64, the DMRS has 8 sequences, and the 8 sequences respectively identify 8 indexes, and the 8 DMRS sequences can be indicated by different 3-bit status words, and the bit field of the information carried by the PBCH occupies 3 bits. The 3 bits corresponding to the DMRS sequence and the bit field of the information carried by the PBCH occupy 3 bits, which together can distinguish 64 indexes of the first information.
  • the first preset value is 8, since 4 is less than 8, the DMRS of the PBCH included in two of the four first information is different, or the four first information The information carried by the PBCH contained in two pieces of first information in one piece of information is different.
  • Example B in yet another possible implementation, when the largest number L of first information in the first cycle is less than or equal to the second preset value, there are two first information included in the N first information
  • the DMRS of the PBCH are different, or the DMRS of the PBCH included in any two pieces of first information among the N pieces of first information are different.
  • the fact that the DMRSs of the PBCH included in the two pieces of first information in the N pieces of first information are different may mean that the information carried by the PBCH in which there are two pieces of first information is the same, and the information carried by the PBCH in the two pieces of first information is the same.
  • the DMRS of PBCH is different.
  • the fact that the information carried by the PBCH included in the two pieces of first information is different may mean that the DMRS of the PBCH of the two pieces of first information is the same, but the information carried by the PBCH of the two pieces of first information is different.
  • the maximum number L of the first information in the first period is greater than the second preset value, there are two first information in the N first information, and the DMRS of the PBCH included in the N first information is different, and there are two in the N first information.
  • the information carried by the PBCH included in the two pieces of first information is different; or, when the number L of the largest first information in the first cycle is greater than the second preset value, any two of the N first pieces of information first
  • the DMRSs of the PBCH included in the two first information in the N first information are different, and the information carried by the PBCH included in the two first information in the N first information is different, which can be understood as Among the N pieces of first information, the DMRSs of the PBCH included in the two pieces of first information are different, and the information carried by the PBCH included in the two pieces of first information is different. That is to say, the two pieces of first information that include different DMRSs of the PBCH and the two pieces of first information that include different information carried by the PBCH may be the same two pieces of first information.
  • the four pieces of first information are information 1, information 2, information 3, and information 4 respectively, where the DMRS of the PBCH included in information 1 and information 2 are different, and the information The information carried by the PBCH included in information 1 and information 2 is different.
  • L may be equal to N*K.
  • L may also be the number of indexes in the index set of the first information in the first cycle.
  • the maximum number of first information in the first period may be the number of indexes in the index set of the first information in the first period.
  • the maximum number of first messages in the first period may refer to the number of first messages sent by the network device, or may refer to the maximum number of first messages allowed by the protocol.
  • the protocol stipulates that the maximum number of first messages allowed to be sent in a cell is 8, and the number of first messages sent by a network device is 7. At this time, the maximum number of first pieces of information in the cell may be 8 or 7, which is not limited in this application.
  • the first period is the duration for the network device to cyclically send N*K pieces of first information, and N*K is the maximum number of first pieces of information in the cell.
  • At least one of the DMRS of the PBCH contained in any two pieces of first information among the N pieces of first information is different from the information carried by the PBCH.
  • the DMRS of the PBCH included in any two pieces of first information in the N pieces of first information are not the same, or, the information carried by the PBCH included in any two pieces of first information in the N pieces of first information are not the same, or, N
  • the DMRS of the PBCH included in any two pieces of first information and the information carried by the PBCH are different.
  • the first preset value may be the same as or different from the second preset value.
  • the first preset value and the second preset value may be predefined through an agreement, for example, both the first preset value and the second preset value are 8.
  • the network device sends S*N*K pieces of first information to the terminal device in S first periods and N frequency domain positions, where K is each The number of time domain positions in the first cycle, N*K different first messages are sent in each first cycle, and the N*K first messages in each first cycle correspond to N*K different index, the N*K first pieces of information in the S first periods of each frequency domain position in the N frequency domain positions correspond to N*K different indexes, and any frequency domain position in the N frequency domain positions is in S first periods include N*K first information with different indexes, and the first period is the duration for the network device to cyclically send N*K first information, where S is equal to N, and K is a positive number greater than or equal to 1. Integer, S is a positive integer greater than or equal to 1, Indicates rounding up, i is a positive integer greater than or equal to 1.
  • each of the N frequency domain positions represents a whole block of frequency domain that carries the first information, for example, 20 consecutive RBs may be one frequency domain position.
  • the time domain position represents an entire block of the time domain that carries the first information, for example, the time domain occupied by 4 consecutive OFDM symbols may be one time domain position.
  • the four first periods are respectively the first first period, the second first period, and the third first period. cycle, the 4th first cycle.
  • the 4 frequency domain positions are the 10th-29th RB, the 30th-49th RB, the 50th-69th RB, and the 70th-89th RB; the network equipment is inward in the 4 first cycles and 4 frequency domain positions
  • the 8 different indexes corresponding to the 8 first information of the period are 2, 3, 1, 0, 6, 7, 5, 4 respectively; within the 4 first periods of each frequency domain position in the 4 frequency domain positions
  • the 8 first pieces of information correspond to 8 different indexes, for example, the 8 different indexes corresponding to the 8 first pieces of information in the 4 first periods of the 10th-29th RB are 0, 4, 2, 6 respectively , 1, 5, 3, 7; the 8
  • the indices of the eight pieces of first information with different indexes included in the 2nd first period, the 3rd first period and the 4th period are 0, 4, 2, 6, 1, 5, 3, 7.
  • the network device sends S*N*K pieces of first information to the terminal device in S first periods and N frequency domain positions, where K is the The number of time domain positions in each first cycle, N*K different first messages are sent in each first cycle, and the N*K first messages in each first cycle correspond to N*K For different indexes, the N*K pieces of first information in the S first cycles of each of the N frequency domain locations correspond to N*K different indexes.
  • the i frequency domain positions among the N frequency domain positions are in A first period includes N*K first information with different indexes, and the first period is the duration for the network device to cyclically send N*K first information, where S is equal to N, and K is a positive integer greater than or equal to 1 , S is a positive integer greater than or equal to 1, Indicates rounding up, i is a positive integer greater than or equal to 1.
  • the four first periods are respectively the first first period, the second first period, and the third first period. cycle, the 4th first cycle.
  • the 4 frequency domain positions are the 10th-29th RB, the 30th-49th RB, the 50th-69th RB, and the 70th-89th RB; the network equipment is inward in the 4 first cycles and 4 frequency domain positions
  • the 8 different indexes corresponding to the 8 first information of the period are 2, 3, 1, 0, 6, 7, 5, 4 respectively; within the 4 first periods of each frequency domain position in the 4 frequency domain positions
  • the 8 first pieces of information correspond to 8 different indexes, for example, the 8 different indexes corresponding to the 8 first pieces of information in the 4 first periods of the 10th-29th RB are 0, 4, 2, 6 respectively , 1, 5, 3, 7; the 8
  • a first period includes 8 pieces of first information with different indexes.
  • 2 of the 4 frequency domain positions are respectively the 10th-29th RB and the 30th-49th RB.
  • the 2 first The periods are the 1st first period and the 2nd first period respectively, then the 10th-29th RB and the 30th-49th RB include 8 in the 1st first period and the 2nd first period
  • the indexes of the first information with different indexes are 0, 1, 4, 5, 2, 3, 6, and 7.
  • 3 of the 4 frequency domain positions are in Include at least 8 pieces of first information with different indexes in a first cycle, for example, 3 frequency domain positions in 4 frequency domain positions are respectively the 10th-29th RB, the 30th-49th RB, and the 50th-69th RB RB, the two first cycles are the first first cycle and the second first cycle, then the 10th-29th RB, the 30th-49th RB, and the 50th-69th RB are in the first
  • the first period and the second first period include 12 pieces of first information, and the indices of the 12 pieces of first information are 0, 1, 2, 4, 5, 6, 2, 3, 1, 6, 7, 5.
  • Step S402 the terminal device receives one or more pieces of first information from the network device.
  • the one or more pieces of first information belong to N pieces of first information, and the N pieces of first information correspond to the same time-domain resources and N frequency-domain resources, and the N frequency-domain resources are the same as the N pieces of first information
  • N is a positive integer greater than 1.
  • the first information includes one or more of the following: synchronization signal and system information.
  • the N pieces of first information belong to N*K pieces of first information, and the N*K pieces of first periods are N*K different pieces of first information in the first period, and the terminal device can
  • the minimum time length for detecting the N*K pieces of first information is T, T is determined according to the N*K, the bandwidth of the terminal device, and the duration P of the first cycle, and K is the time in each first cycle The number of domain locations.
  • the number of pieces of first information that the terminal device can detect within the first period and within the bandwidth of the terminal device is M. That is to say, the terminal device can detect the maximum number N*K of the first information sent by the network device in the first period within the minimum duration T, where T is based on N*K, M and the duration P of the first period Sure. Further optionally, K, N, T, M satisfy the following relationship:
  • the terminal device can detect the maximum number N*K of the first information sent by the network device in the first period within the minimum duration T. That is to say, the terminal device can detect the maximum number N*K of the first information sent by the network device within a period within a short period of time. Moreover, better services can be provided for terminal devices with different bandwidth capabilities.
  • Step S403 the terminal device sends a random access channel (random access channel, RACH) to the network device.
  • RACH random access channel
  • the first information includes RACH configuration information, where the configuration information includes all configuration parameters or some configuration parameters of the RACH.
  • the configuration information includes all configuration parameters or some configuration parameters of the RACH.
  • the N pieces of first information are synchronization signals, all or part of the configuration parameters of the RACH included in the configuration information are in the synchronization signal; when the N pieces of first information are synchronization signals and system information, part of the configuration parameters of the RACH In the synchronization signal, another part of the configuration parameters can be in the system information.
  • the terminal device may determine one or more items of time-frequency resource, sequence, and airspace configuration for sending the RACH according to the first information. For example, the terminal device determines the number L of first information in the first period; the terminal device determines a first time-frequency resource set, and the first time-frequency resource set includes B time-frequency resources. The L pieces of first information correspond to the first set of time-frequency resources. The terminal device determines L subsets of time-frequency resources. The L time-frequency resource subsets are in one-to-one correspondence with the L pieces of first information. The L time-frequency resource subsets belong to the first time-frequency resource set.
  • the first time-frequency resource subset is a time-frequency resource subset corresponding to the first information received by the terminal device among the L time-frequency resource subsets.
  • the terminal device sends the RACH by using the first RACH time-frequency resource.
  • the first RACH time-frequency resource belongs to the first time-frequency resource subset.
  • L is less than or equal to B.
  • the first RACH time-frequency resource corresponds to A pieces of first information.
  • the A piece of first information includes first information received by the terminal device.
  • the A pieces of first information correspond to the C pieces of preambles.
  • the A pieces of first information are in one-to-one correspondence with the A pieces of preamble subsets.
  • the preambles included in the A preamble subsets belong to the C preambles.
  • the terminal device sends the RACH by using the preambles in the first preamble subset.
  • the first preamble subset is a preamble subset corresponding to the first information received by the terminal device among the A preamble subsets.
  • A is less than or equal to C.
  • Step S404 the network device receives the RACH from the terminal device.
  • the first information includes RACH configuration information
  • the configuration information includes one or more configuration parameters of the RACH.
  • the N pieces of first information are synchronization signals
  • all or part of the configuration parameters of the RACH included in the configuration information are in the synchronization signal
  • the N pieces of first information are synchronization signals and system information
  • the RACH configuration parameters included in the configuration information Part of the parameters of the parameters are configured in the synchronization signal, and the other part of the parameters are configured in the system information.
  • the network device receives the RACH from the terminal device on the time-frequency resource corresponding to sending the first information. For example, the network device determines the number L of first information in the first period; the network device determines a first time-frequency resource set, and the first time-frequency resource set includes B time-frequency resources. The L pieces of first information correspond to the first set of time-frequency resources. The network device determines L subsets of time-frequency resources. The L time-frequency resource subsets are in one-to-one correspondence with the L pieces of first information. The L time-frequency resource subsets belong to the first time-frequency resource set.
  • the first time-frequency resource subset is a time-frequency resource subset corresponding to the first information sent by the network device among the L time-frequency resource subsets.
  • the network device receives the RACH at the first RACH time-frequency resource.
  • the first RACH time-frequency resource belongs to the first time-frequency resource subset.
  • L is less than or equal to B.
  • the first RACH time-frequency resource corresponds to A pieces of first information.
  • the A piece of first information includes first information sent by the network device.
  • the A pieces of first information correspond to the C pieces of preambles.
  • the A pieces of first information are in one-to-one correspondence with the A pieces of preamble subsets.
  • the preambles included in the A preamble subsets belong to the C preambles.
  • the network device receives the RACH through the preambles in the first preamble subset.
  • the first preamble subset is a preamble subset corresponding to the first information sent by the network device among the A preamble subsets.
  • A is less than or equal to C.
  • the time for sending the first information can be reduced without reducing the network coverage performance.
  • Domain overhead reducing the transmission power consumption of network equipment, is conducive to the energy saving of network equipment.
  • the network device and the terminal device include hardware structures and/or software modules corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software with reference to the units and method steps of the examples described in the embodiments disclosed in the present application. Whether a certain function is executed by hardware or computer software drives the hardware depends on the specific application scenario and design constraints of the technical solution.
  • FIG. 13 and FIG. 14 are schematic structural diagrams of possible communication devices provided by the embodiments of the present application. These communication apparatuses can be used to realize the functions of the network device or the terminal device in the above method embodiments, and thus can also realize the beneficial effects of the above method embodiments.
  • the communication device may be a radio access network device as shown in FIG. 1 (110a and 110b in FIG. 1), or a terminal as shown in FIG. 120a-120j), can also be a module (such as a chip) applied to a network device or a terminal device.
  • a communication device 1300 includes a processing unit 1310 and a transceiver unit 1320 .
  • the communication device 1300 is configured to realize the functions of the network device or the terminal device in the method embodiment shown in FIG. 4 above.
  • the transceiver unit 1320 is used to send the N The first information, wherein the N frequency domain resources correspond to the N first information one by one, and the first information includes one or more of the following: synchronization signal, system information; the N is a positive integer greater than 1.
  • the transceiver unit 1320 is used to receive one or more first information from the network device, the one or more first information Belonging to N pieces of first information, the N pieces of first information correspond to the same time-domain resources and N frequency-domain resources, wherein the N frequency-domain resources correspond to the N pieces of first information one-to-one, and the N is greater than A positive integer of 1, the first information includes one or more of the following: synchronization signal, system information.
  • processing unit 1310 and the transceiver unit 1320 can be directly obtained by referring to related descriptions in the method embodiment shown in FIG. 4 , and details are not repeated here.
  • each module can also refer to the corresponding description of the method embodiment shown in FIG. 4 .
  • a communication device 1400 includes a processor 1410 and an interface circuit 1420 .
  • the processor 1410 and the interface circuit 1420 are coupled to each other.
  • the interface circuit 1420 may be a transceiver or an input-output interface.
  • the communication device 1400 may further include a memory 1430 for storing instructions executed by the processor 1410 or storing input data required by the processor 1410 to execute the instructions or storing data generated after the processor 1410 executes the instructions.
  • the processor 1410 is used to implement the functions of the above-mentioned processing unit 1310
  • the interface circuit 1420 is used to implement the functions of the above-mentioned transceiver unit 1320 .
  • the terminal chip implements the functions of the terminal device in the above method embodiment.
  • the terminal chip receives information from other modules in the terminal device (such as radio frequency modules or antennas), and the information is sent to the terminal device by the network device; or, the terminal chip sends information to other modules in the terminal device (such as radio frequency modules or antennas) Send information, which is sent by the terminal device to the network.
  • the network equipment module implements the functions of the network equipment in the above method embodiments.
  • the network equipment module receives information from other modules in the network equipment (such as radio frequency modules or antennas), and the information is sent to the network equipment by the terminal equipment; or, the network equipment module sends information to other modules in the network equipment (such as radio frequency modules or antenna) to send information, which is sent by the network device to the terminal device.
  • the network device module here may be a baseband chip of the network device, or a DU or other modules, and the DU here may be a DU under an open radio access network (O-RAN) architecture.
  • OF-RAN open radio access network
  • the processor in the embodiments of the present application can be a central processing unit (Central Processing Unit, CPU), and can also be other general-purpose processors, digital signal processors (Digital Signal Processor, DSP), application-specific integrated circuits (Application Specific Integrated Circuit, ASIC), Field Programmable Gate Array (Field Programmable Gate Array, FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof.
  • a general-purpose processor can be a microprocessor, or any conventional processor.
  • the method steps in the embodiments of the present application may be implemented by means of hardware, or may be implemented by means of a processor executing software instructions.
  • Software instructions can be composed of corresponding software modules, and software modules can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only Memory, registers, hard disk, removable hard disk, CD-ROM or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium.
  • the storage medium may also be a component of the processor.
  • the processor and storage medium can be located in the ASIC.
  • the ASIC can be located in the base station or the terminal.
  • the processor and the storage medium may also exist in the base station or the terminal as discrete components.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs or instructions. When the computer program or instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are executed in whole or in part.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, network equipment, user equipment, or other programmable devices.
  • the computer program or instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program or instructions may be downloaded from a website, computer, A server or data center transmits to another website site, computer, server or data center by wired or wireless means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrating one or more available media.
  • the available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disk; or it may be a semiconductor medium, such as a solid state disk.
  • the computer readable storage medium may be a volatile or a nonvolatile storage medium, or may include both volatile and nonvolatile types of storage media.
  • “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 can 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 character “/” generally indicates that the contextual objects are an “or” relationship; in the formulas of this application, the character “/” indicates that the contextual objects are a “division” Relationship.
  • “Including at least one of A, B and C” may mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B and C.

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Abstract

本申请实施例提供一种通信方法及装置,该方法包括,网络设备生成多个第一信息,第一信息包括同步信号或系统信息中的至少一种,网络设备在相同的时域资源、以及多个频域资源上向终端设备发送该多个第一信息,相应的,终端设备接收一个或多个第一信息,采用本申请实施例,能够降低网络设备发送同步信号和/或系统信息的时域开销,降低网络设备的发送功耗,从而有利于网络设备的节能。

Description

通信方法及装置
本申请要求于2021年12月30日提交中国专利局、申请号为202111667040.8、申请名称为“通信方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域,尤其涉及一种通信方法及装置。
背景技术
现有通信系统中,即使小区覆盖范围内没有终端设备连接,不需要进行数据传输,小区还是需要发送一些公共信号,这些公共信号主要用于刚开机用户进行小区搜索和接入,或者其他小区覆盖范围内用户进行邻区测量和潜在的切换。例如,主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)、物理广播信道(physical Broadcast Channel,PBCH),以及承载系统信息(system information,SI)的组播信道和用于承载寻呼(Paging)的组播信道。在新空口(new radio,NR)系统中,PSS、SSS和PBCH是放在一起,组成同步信号和物理广播信道块(synchronization signal and physical broadcast channel block,SSB)发送。
为提高覆盖,基站通过波束扫描的形式,周期性地发送多个SSB,但发送的SSB越多,占据的时域资源就越多,导致SSB的开销较大。
发明内容
本申请实施例公开了一种通信方法及装置,能够降低发送第一信息的时域开销,降低网络设备的发送功耗,从而有利于网络设备的节能。
本申请实施例第一方面公开了一种通信方法及装置,包括:生成N个第一信息,该第一信息包括以下一项或多项:同步信号,系统信息;在相同的时域资源、以及N个频域资源上向终端设备发送该N个第一信息,其中,该N个频域资源与该N个第一信息一一对应,该N为大于1的正整数。
在上述方法中,通过在相同的时域资源、以及N个频域资源上向终端设备发送N个第一信息的方式,能够在不降低网络覆盖性能的情况下,降低发送第一信息的时域开销,降低网络设备的发送功耗,有利于网络设备的节能。
在一种可能的实现方式中,该在相同的时域资源、以及N个频域资源上向终端设备发送该N个第一信息,包括:在相同的时域资源、以及N个频域资源上向终端设备发送该N个相同的第一信息。其中,该N个相同的第一信息是指N个重复的第一信息,也即,N个第一信息为N个相同的信息。
在上述方法中,通过重复发送相同的第一信息,能够提高第一信息传输的可靠性。
在又一种可能的实现方式中,该N个第一信息的索引相同。
在又一种可能的实现方式中,所述系统信息包括PBCH,该N个第一信息满足以下至少一项:该N个第一信息中每个第一信息包括的物理广播信道PBCH承载的信息是相同的;该N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;或者,该N个 第一信息中每个第一信息的波束方向是相同的。
在又一种可能的实现方式中,该在相同的时域资源、以及N个频域资源上向终端设备发送该N个第一信息,包括:在相同的时域资源、以及N个频域资源上向终端设备发送该N个不同的第一信息。
在上述方法中,通过在相同的时域资源、以及N个频域资源上向终端设备发送该N个不同的第一信息的方式,能够降低发送第一信息的时域开销,从而节约网络设备的发送功耗,从而达到节能的目的。
在又一种可能的实现方式中,该N个第一信息的索引不同。
在又一种可能的实现方式中,所述系统信息包括PBCH,该N个第一信息满足以下至少一项:该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,该N个第一信息中存在两个第一信息的波束方向是不同的。
在又一种可能的实现方式中,当该N小于或等于第一预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;当该N大于该第一预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的,也即当N大于该第一预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS和PBCH承载的信息均不同。
在又一种可能的实现方式中,当第一周期内最大的第一信息的个数L小于或等于第二预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;当该第一周期内最大的第一信息的个数L大于该第二预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的。
在又一种可能的实现方式中,第一周期为网络设备循环发送N*K个第一信息的时长,N*K为小区内的最大第一信息的个数。
在又一种可能的实现方式中,该N是协议预定义的。
在又一种可能的实现方式中,该N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。
通过上述方式能够实现终端设备快速确定N个第一信息中每个第一信息的频域位置,减小时耗。
在又一种可能的实现方式中,该N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,该第一参考信息属于该N个第一信息。
在又一种可能的实现方式中,该第一参考信息的中心频域位置是根据同步栅格确定的。
在又一种可能的实现方式中,该N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,包括:该N个第一信息中每个第一信息的频域位置是通过该第一参考信息的频域位置和预定义样式确定的,该预定义样式包括该N个第一信息之间的排列方式。
在又一种可能的实现方式中,该N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,该第二参考信息为该N个第一信息中的一个第一信息。
在上述方法中,第二参考信息对应的时频资源不能用于下行传输,能够避免N个第一信 息中每个第一信息对应的时频域资源均被用于下行数据传输时,有些终端设备无法接入网络设备的情况,也能够避免N个第一信息中每个第一信息对应的时频域资源均被用于下行数据传输时,基于第一信息的下行测量会受到影响的情况,从而尽可能减小下行数据传输带来的影响。
在又一种可能的实现方式中,通过组下行控制信息DCI或触发信令指示该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输。
在又一种可能的实现方式中,通过组下行控制信息DCI或触发信令指示该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,包括:该组DCI或触发信令占用的频域资源属于第一频带,该N个第一信息中除该第二参考信息之外的一个或多个第一信息占用的时频域资源中的频域资源属于第二频带。
在又一种可能的实现方式中,该N个第一信息中的R个第一信息对应的时频资源用于第一下行数据传输,该N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,该(N-R)个第一信息的空域配置与该第一下行数据传输的空域配置相同,都为第一空域配置,该R为小于或者等于N的正整数;当该N个第一信息对应的时频域资源均未用于下行数据传输,该N个第一信息的空域配置为第二空域配置;其中,该第一空域配置和该第二空域配置不同。其中,当该N个第一信息对应的时频域资源均未用于下行数据传输可以是指当该N个第一信息对应的时频域资源均用于第一信息传输。
通过上述方式,能够提高下行数据传输的可靠性。
在又一种可能的实现方式中,该第一空域配置对应第一波束宽度,该第二空域配置对应第二波束宽度,该方法还包括:向该终端设备发送第一指示信息,该第一指示信息用于指示该第一波束宽度或该第二波束宽度。
在又一种可能的实现方式中,在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,该K为该S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中任意一个频域位置在S个第一周期内包括N*K个索引不同的第一信息,该第一周期为网络设备循环发送N*K个第一信息的时长,其中,该S等于N,该K为大于等于1的正整数,该S为大于或者等于1的正整数,
Figure PCTCN2022139869-appb-000001
表示向上取整。
在又一种可能的实现方式中,在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,该K为该S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中i个频域位置在
Figure PCTCN2022139869-appb-000002
个第一周期内包括N*K个索引不同的第一信息,该第一周期为网络设备循环发送N*K个第一信息的时长,其中,该S等于N,该K为大于等于1的正整数,该S为大于或者等于1的正整数,
Figure PCTCN2022139869-appb-000003
表示向上取整,该i为大于1的正整数。
本申请实施例第二方面公开了一种通信方法及装置,有益效果可以参见第一方面。包括:接收来自网络设备的一个或多个第一信息,该一个或多个第一信息属于N个第一信息,该N个第一信息对应相同的时域资源、以及N个频域资源,其中,该N个频域资源与该N个第一信息一一对应,该N为大于1的正整数,该第一信息包括以下一项或者多项:同步信号, 系统信息。
在一种可能的实现方式中,该在相同的时域资源、以及N个频域资源上接收来自网络设备的N个第一信息中的一个或多个,包括:在相同的时域资源、以及N个频域资源上接收来自该网络设备的N个相同的第一信息中的一个或多个。
在又一种可能的实现方式中,该N个第一信息的索引相同。
在又一种可能的实现方式中,所述系统信息包括PBCH,该N个第一信息满足以下至少一项:该N个第一信息中每个第一信息包括的物理广播信道PBCH承载的信息是相同的;该N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;该N个第一信息中每个第一信息的波束方向是相同的。
在又一种可能的实现方式中,该N个第一信息为N个不同的信息,该在相同的时域资源、以及N个频域资源上接收来自网络设备的N个第一信息中的一个或多个,包括:在相同的时域资源、以及N个频域资源上接收来自该网络设备的N个不同的第一信息中的一个或多个。
在又一种可能的实现方式中,该N个第一信息的索引不同。
在又一种可能的实现方式中,所述系统信息包括PBCH,该N个第一信息满足以下至少一项:该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;该N个不同的第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,该N个第一信息中存在两个第一信息的波束方向是不同的。
在又一种可能的实现方式中,当该N小于或等于第一预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;当该N大于该第一预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的,也即当N大于该第一预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS和PBCH承载的信息均不同。
在又一种可能的实现方式中,当第一周期内最大的第一信息的个数L小于或等于第二预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;当该第一周期内最大的第一信息的个数L大于该第二预设值,该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的。
在又一种可能的实现方式中,该N是协议预定义的。
在又一种可能的实现方式中,该N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。
在又一种可能的实现方式中,该N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,该第一参考信息属于该N个第一信息。
在又一种可能的实现方式中,该N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,该第二参考信息为该N个第一信息中的一个第一信息。
在又一种可能的实现方式中,该N个第一信息中有R个第一信息对应的时频资源用于第一下行数据传输,该N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,该(N-R)个第一信息的空域配置与该第一下行数据传输的空域配置相同,都为第一空域配置;该R为小于或者等于N的正整数;当该N个第一信息对应的时频域资源均未用于下行数据传输,该N个第一信息的空域配置为第二空域配置;其中,该第一空域配置和该第 二空域配置不同。
在又一种可能的实现方式中,该N个第一信息属于N*K个第一信息,该N*K个第信息为第一周期内的N*K个不同的第一信息,该终端设备能够检测到该N*K个第一信息的最小时长为T,该T是根据该N*K、所述终端设备的带宽,以及该第一周期的时长P确定,所述K每个第一周期内的时域位置的个数。
在又一种可能的实现方式中,所述终端设备在所述第一周期内,以及所述终端设备的带宽内能够检测到的第一信息的个数为M,所述T、N、K、M满足以下关系:
Figure PCTCN2022139869-appb-000004
其中,
Figure PCTCN2022139869-appb-000005
表示向上取整。
本申请实施例第三方面公开了一种通信装置,该通信装置可以为网络设备或网络设备中的芯片,该通信装置包括处理单元和收发单元,该收发单元,用于在相同的时域资源、以及N个频域资源上向终端设备发送N个第一信息,其中,该N个频域资源与该N个第一信息一一对应,该第一信息包括以下一项或多项:同步信号,系统信息;该N为大于1的正整数。
在一种可能的实现方式中,该收发单元,用于在相同的时域资源、以及N个频域资源上向终端设备发送该N个相同的第一信息。其中,该N个相同的第一信息是指N个重复的第一信息,也即,N个第一信息为N个相同的信息。
在又一种可能的实现方式中,该N个第一信息的索引相同。
在又一种可能的实现方式中,该N个第一信息满足以下至少一项:该N个第一信息中每个第一信息包括的物理广播信道PBCH承载的信息是相同的;该N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;或者,该N个第一信息中每个第一信息的波束方向是相同的。
在又一种可能的实现方式中,该收发单元,用于在相同的时域资源、以及N个频域资源上向终端设备发送该N个不同的第一信息。其中,N个不同的第一信息为N个不同的信息。
在又一种可能的实现方式中,该N个第一信息的索引不同。
在又一种可能的实现方式中,该N个第一信息满足以下至少一项:该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;该N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,该N个第一信息中存在两个第一信息的波束方向是不同的。
在又一种可能的实现方式中,该N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。
在又一种可能的实现方式中,该N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,该第一参考信息属于该N个第一信息。
在又一种可能的实现方式中,该N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,该第二参考信息为该N个第一信息中的一个第一信息。
在又一种可能的实现方式中,当该N个第一信息中的R个第一信息对应的时频资源用于第一下行数据传输,该N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,该(N-R)个第一信息的空域配置与该第一下行数据传输的空域配置相同,都为第一空域配置;该R为小于或者等于N的正整数;当该N个第一信息对应的时频域资源均未用于下行数据传输,该N个第一信息的空域配置为第二空域配置;其中,该第一空域配置和该 第二空域配置不同。其中,当该N个第一信息对应的时频域资源均未用于下行数据传输可以是指当该N个第一信息对应的时频域资源均用于第一信息传输。
在又一种可能的实现方式中,该收发单元,用于在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,该K为该S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中任意一个频域位置在S个第一周期内包括N*K个索引不同的第一信息,该第一周期为网络设备循环发送N*K个第一信息的时长,其中,该S等于N,该K为大于等于1的正整数,该S为大于或者等于1的正整数,
Figure PCTCN2022139869-appb-000006
表示向上取整。
在又一种可能的实现方式中,该收发单元,用于在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,该K为该S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,该N个频域位置中的i个频域位置在
Figure PCTCN2022139869-appb-000007
个第一周期内包括N*K个索引不同的第一信息,该第一周期为该网络设备循环发送N*K个第一信息的时长,其中,该S等于该N,该K为大于等于1的正整数,该S为大于或者等于1的正整数,
Figure PCTCN2022139869-appb-000008
表示向上取整,该i为大于等于1的正整数。
关于第三方面或可能的实现方式所带来的技术效果,可参考对于第一方面或相应的实施方式的技术效果的介绍。
本申请实施例第四方面公开了一种通信装置,该通信装置可以为终端设备或终端设备中的芯片,该通信装置包括处理单元和收发单元,该收发单元,用于接收来自网络设备的一个或多个第一信息,该一个或多个第一信息属于N个第一信息,该N个第一信息对应相同的时域资源、以及N个频域资源,其中,该N个频域资源与该N个第一信息一一对应,该N为大于1的正整数,该第一信息包括以下一项或者多项:同步信号,系统信息。
在一种可能的实现方式中,该收发单元,用于在相同的时域资源、以及N个频域资源上接收来自该网络设备的N个相同的第一信息中的一个或多个。
在又一种可能的实现方式中,该N个第一信息的索引相同。
在又一种可能的实现方式中,该N个第一信息满足以下至少一项:该N个第一信息中每个第一信息包括的物理广播信道PBCH承载的信息是相同的;该N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;该N个第一信息中每个第一信息的波束方向是相同的。
在又一种可能的实现方式中,该N个第一信息为N个不同的信息,该收发单元,用于在相同的时域资源、以及N个频域资源上接收来自该网络设备的N个不同的第一信息中的一个或多个。
在又一种可能的实现方式中,该N个第一信息的索引不同。
在又一种可能的实现方式中,该N个第一信息满足以下至少一项:该N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;该N个不同的第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,该N个第一信息中存在两个第一信息的波束方向是不同的。
在又一种可能的实现方式中,该N个第一信息中的相邻两个第一信息的中心频域位置之 间的间隔为同步栅格的整数倍。
在又一种可能的实现方式中,该N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,该第一参考信息属于该N个第一信息。
在又一种可能的实现方式中,该N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,该第二参考信息为该N个第一信息中的一个第一信息。
在又一种可能的实现方式中,当该N个第一信息中有R个第一信息对应的时频资源用于第一下行数据传输,该N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,该(N-R)个第一信息的空域配置与该第一下行数据传输的空域配置相同,都为第一空域配置;该R为小于或者等于N的正整数;当该N个第一信息对应的时频域资源均未用于下行数据传输,该N个第一信息的空域配置为第二空域配置;其中,该第一空域配置和该第二空域配置不同。
在又一种可能的实现方式中,该N个第一信息属于N*K个第一信息,该N*K个第一信息为第一周期内的N*K个不同的第一信息,该终端设备能够检测到该N*K个第一信息的最小时长为T,该T是根据该N*K、该终端设备的带宽,以及该第一周期的时长P确定,所述K为每个第一周期内的时域位置的个数。
在又一种可能的实现方式中,该终端设备在第一周期内,以及根据该终端设备的带宽内能够检测到的第一信息的个数为M,该T、N、K、M满足以下关系:
Figure PCTCN2022139869-appb-000009
其中,
Figure PCTCN2022139869-appb-000010
表示向上取整。
关于第四方面或可能的实现方式所带来的技术效果,可参考对于第二方面或相应的实施方式的技术效果的介绍。
本申请实施例第五方面公开了一种通信装置,包括处理器和接口电路,该接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置,该处理器用于通过逻辑电路或执行代码指令执行第一方面所述的方法。
本申请实施例第六方面公开了一种通信装置,包括处理器和接口电路,该接口电路用于接收来自该通信装置之外的其它通信装置的信号并传输至该处理器或将来自该处理器的信号发送给该通信装置之外的其它通信装置,该处理器用于通过逻辑电路或执行代码指令执行第二方面所述的方法。
本申请实施例第七方面公开了一种芯片,所述芯片包括至少一个处理器和和接口电路,所述至少一个处理器用于执行计算机程序指令,以实现上述任一方面所述的方法。
本申请实施例第八方面公开了一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序指令,当所述计算机程序指令在处理器上运行时,以实现上述任一方面所述的方法。
本申请实施例第九方面公开了一种计算机程序产品,所述计算机程序产品中包括计算机程序指令,当所述计算机程序指令在计算机上运行时,以实现上述任一方面所述的方法。
本申请实施例第十方面公开了一种通信系统,包括至少一个第五方面所述的通信装置, 和至少一个第六方面所述的通信装置。
附图说明
以下对本申请实施例用到的附图进行介绍。
图1是本申请实施例提供的一种通信系统1000的结构示意图;
图2是本申请实施例提供的一种SSB的结构示意图;
图3是本申请实施例提供的一种发送SSB的示意图;
图4是本申请实施例提供的一种通信方法的流程示意图;
图5是本申请实施例提供的一种频域资源的示意图;
图6是本申请实施例提供的一种确定第一信息的中心频域位置的示意图;
图7是本申请实施例提供的一种确定第一信息的频域位置的示意图;
图8是本申请实施例提供的一种时频域资源能否用于下行数据传输的示意图;
图9是本申请实施例提供的一种网络设备发送第一信息的示意图;
图10是本申请实施例提供的一种网络设备发送第一信息的示意图;
图11是本申请实施例提供的一种网络设备发送第一信息的示意图;
图12是本申请实施例提供的一种终端设备能够检测到第一信息的示意图;
图13是本申请实施例提供的一种通信装置的结构示意图;
图14是本申请实施例提供的一种通信装置的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
请参见图1,图1是本申请的实施例应用的通信系统1000的架构示意图。如图1所示,该通信系统包括无线接入网100和核心网200,可选的,通信系统1000还可以包括互联网300。其中,无线接入网100可以包括至少一个无线接入网设备(如图1中的110a和110b),还可以包括至少一个终端(如图1中的120a-120j)。终端通过无线的方式与无线接入网设备相连,无线接入网设备通过无线或有线方式与核心网连接。核心网设备与无线接入网设备可以是独立的不同的物理设备,也可以是将核心网设备的功能与无线接入网设备的逻辑功能集成在同一个物理设备上,还可以是一个物理设备上集成了部分核心网设备的功能和部分的无线接入网设备的功能。终端和终端之间以及无线接入网设备和无线接入网设备之间可以通过有线或无线的方式相互连接。图1只是示意图,该通信系统中还可以包括其它网络设备,如还可以包括无线中继设备和无线回传设备,在图1中未画出。
无线接入网设备可以是基站(base station)、演进型基站(evolved NodeB,eNodeB)、发送接收点(transmission reception point,TRP)、第五代(5th generation,5G)移动通信系统中的下一代基站(next generation NodeB,gNB)、第六代(6th generation,6G)移动通信系统中的下一代基站、未来移动通信系统中的基站或WiFi系统中的接入节点等;也可以是完成基站部分功能的模块或单元,例如,可以是集中式单元(central unit,CU),也可以是分布式单元(distributed unit,DU)。这里的CU完成基站的无线资源控制协议和分组数据汇聚层协议(packet data convergence protocol,PDCP)的功能,还可以完成业务数据适配协议(service data adaptation protocol,SDAP)的功能;DU完成基站的无线链路控制层和介质访问控制(medium access control,MAC)层的功能,还可以完成部分物理层或全部物理层的功能,有关上述各 个协议层的具体描述,可以参考第三代合作伙伴计划(3rd generation partnership project,3GPP)的相关技术规范。无线接入网设备可以是宏基站(如图1中的110a),也可以是微基站或室内站(如图1中的110b),还可以是中继节点或施主节点等。本申请的实施例对无线接入网设备所采用的具体技术和具体设备形态不做限定。为了便于描述,下文以基站作为无线接入网设备的例子进行描述。
终端也可以称为终端设备、用户设备(user equipment,UE)、移动台、移动终端等。终端可以广泛应用于各种场景,例如,设备到设备(device-to-device,D2D)、车物(vehicle to everything,V2X)通信、机器类通信(machine-type communication,MTC)、物联网(internet of things,IOT)、虚拟现实、增强现实、工业控制、自动驾驶、远程医疗、智能电网、智能家具、智能办公、智能穿戴、智能交通、智慧城市等。终端可以是手机、平板电脑、带无线收发功能的电脑、可穿戴设备、车辆、无人机、直升机、飞机、轮船、机器人、机械臂、智能家居设备等。本申请的实施例对终端所采用的具体技术和具体设备形态不做限定。
基站和终端可以是固定位置的,也可以是可移动的。基站和终端可以部署在陆地上,包括室内或室外、手持或车载;也可以部署在水面上;还可以部署在飞机、气球和人造卫星上。本申请的实施例对基站和终端的应用场景不做限定。
基站和终端的角色可以是相对的,例如,图1中的直升机或无人机120i可以被配置成移动基站,对于那些通过120i接入到无线接入网100的终端120j来说,终端120i是基站;但对于基站110a来说,120i是终端,即110a与120i之间是通过无线空口协议进行通信的。当然,110a与120i之间也可以是通过基站与基站之间的接口协议进行通信的,此时,相对于110a来说,120i也是基站。因此,基站和终端都可以统一称为通信装置,图1中的110a和110b可以称为具有基站功能的通信装置,图1中的120a-120j可以称为具有终端功能的通信装置。
基站和终端之间、基站和基站之间、终端和终端之间可以通过授权频谱进行通信,也可以通过免授权频谱进行通信,也可以同时通过授权频谱和免授权频谱进行通信;可以通过6千兆赫(gigahertz,GHz)以下的频谱进行通信,也可以通过6GHz以上的频谱进行通信,还可以同时使用6GHz以下的频谱和6GHz以上的频谱进行通信。本申请的实施例对无线通信所使用的频谱资源不做限定。
在本申请的实施例中,基站的功能也可以由基站中的模块(如芯片)来执行,也可以由包含有基站功能的控制子系统来执行。这里的包含有基站功能的控制子系统可以是智能电网、工业控制、智能交通、智慧城市等上述应用场景中的控制中心。终端的功能也可以由终端中的模块(如芯片或调制解调器)来执行,也可以由包含有终端功能的装置来执行。
在本申请中,基站向终端发送下行信号或下行信息,下行信息承载在下行信道上;终端向基站发送上行信号或上行信息,上行信息承载在上行信道上。终端为了与基站进行通信,需要与基站控制的小区建立无线连接。与终端建立了无线连接的小区称为该终端的服务小区。当终端与该服务小区进行通信的时候,还会受到来自邻区的信号的干扰。
首先,对本申请中的部分用语进行解释说明,以便于本领域技术人员理解。
(1)同步信号和物理广播信道块(synchronization signal and physical broadcast channel block,SSB),SSB包括主同步信号(primary synchronization signal,PSS)、辅同步信号(secondary synchronization signal,SSS)和物理广播信道(physical broadcast channel,PBCH)。主要用于小区搜索、小区同步、承载小区标识(cell identity number,CI)、下行定时以及系统消息的获取,在新空口(new radio,NR)中SSB主要有两个功能分别为:(1)小区同步以及主系统信息 块(master information block,MIB)获取;(2)网络设备发送波束(beam)训练。其中,小区同步以及MIB获取:PSS和SSS中携带小区物理标识(physical cell identifier,PCI),终端设备通过检测PSS和SSS获取PCI,同时SSB的PBCH中会携带SSB索引(index),每个SSB index对应一个发送位置,通过检测SSB index和检测时刻,完成下行定时同步。其中,一个小区内的不同SSB通过SSB index标识。一种SSB样式(SSB pattern)包含多个SSB index,不同SSB index对应的发送波束不同,终端设备可以通过检测SSB,选择最好的SSB index完成网络设备发送波束的训练。
(2)同步栅格(synchronization raster):终端设备在检测到SSB之前,不确定SSB具体的时频资源位置的,也就是说,终端设备需要盲检测SSB的位置。但是,由于小区带宽较大,如果终端设备在每个频点上都去尝试检测SSB,将会导致终端设备接入速度非常慢。因此,当前协议中定义了同步栅格,该同步栅格在不同的频段的大小不同,同步栅格可以是1.2兆赫(MHz),1.44MHz以及17.28MHz。也就是说,终端设备以同步栅格为间隔逐个去尝试检测SSB,进而提高了终端设备检测SSB的速度。例如,如表格1所示:全球同步信道号(Global Synchronization Channel Number,GSCN)用于标记SSB的信道号,每个GSCN都会对应一个SSB的频域位置SS REF,GSCN按频域增序进行编号。终端设备在这些GSCN上依次盲检SSB,可以理解,SSB的位置一定满足同步栅格的关系,但是根据同步栅格确定的频点上可能有SSB,也可能没有SSB。
表1
Figure PCTCN2022139869-appb-000011
(3)SSB结构:SSB是由主同步信号PSS、SSS、PBCH三部分共同组成。如图2所示为SSB的一种示例,一个SSB中包含一个符号的PSS、一个符号的SSS和两个符号的PBCH。其中,PBCH所占的时频资源中包括解调参考信号(demodulation reference signal,DMRS),用于PBCH的解调。SSB时域上共占用4个正交频分复用(orthogonal frequency division multiplexing,OFDM)符号,按照从0-3升序编号,频域共占用240个子载波,也就是20个物理资源块(physical resource block,PRB),240个子载波(subcarrier,SC),子载波的编号为0~239。PSS位于符号0的中间127个子载波。SSS位于符号2的中间127个子载波;为了保护PSS、SSS,它们的两端分别有不同的子载波Set 0。PBCH位于符号1/3,以及符号2,其中符号1/3上占0~239所有子载波,符号2上占用除去SSS占用子载波及保护SSS的子载波Set 0以外的所有子载波。DMRS位于PBCH中间,在符号1/3上,每个符号上60个,间隔4个子载波。需要说明的是,图3所示为示例性的,本申请对SSB的结构不做限制,对SSB中不同部分占用的时域符号和子载波的数量也不做限制。
当前,为提高覆盖,基站通过波束扫描的形式,周期性地发送多个SSB,一个周期内的SSB越多,占用的时域资源越多。尤其针对高频毫米波(millimeter wave,mmW)场景,由于一个周期内的SSB的数目较多,时域资源开销大的问题更为突出。例如,当前SSB样式(pattern)有五种,将SSB的时域位置分为了5种不同的情况,分别为Case A,Case B,Case C,Case D,Case E,分别对应的子载波间隔为15千赫兹(kHz),30kHz,60kHz,120kHz,240kHz。以SSB样式(pattern)中的Case D为例,Case D对应的子载波间隔为240kHz,在一个周期,即一个半帧(Half-frame)需要发送64个SSB,如图3所示,该64个SSB分别为SSB index#0~SSB index#63,位于一个半帧(Half-frame)中前4个子帧,该前4个子帧中每个子帧包括16个SSB,其中,前4个子帧中的第一个子帧包括的前4个SSB,分别为SSB#0,SSB#1,SSB#2,SSB#3,每个SSB占用4个OFDM符号,SSB#0,SSB#1,SSB#2,SSB#3对应的起始的OFDM符号分别为#4、#8、#16、#20。因此,该64个SSB需要占用64*4个OFDM符号,时域资源开销较大,因此为了解决上述问题,本申请实施例提出以下解决方案。
(4)波束和空域配置
波束(beam)和空域配置都用于描述信号接收或者信号发送的空域行为。因此,波束和空域配置往往是对应的。在本申请实施例中,波束和空域配置可以替换,波束或空域配置还可以理解为以下中的一项或多项:空域信息、空域滤波器的配置信息、空域滤波配置、接收或发送第一信息时的天线方向图,接收或者发送第一信息采用的空域滤波器配置。
可选的,空域配置相同也可以理解为信号传输采用了相同的准同步特征(quasi-colocation properties,QCL)。对于QCL,若信道1和信道2满足QCL,可以理解为信道1的信道特征通过信道2获得。该可以理解A和B准共址可以认为B的信道特性可以从A得到。进一步可选的,信道特性可以包括多普勒平移,多普勒扩展,平均时延,时延扩展和空域参数中的一项或者多项。
请参见图4,图4是本申请实施例提供的一种通信方法,该方法包括如下步骤:
步骤S401:网络设备在相同的时域资源、以及N个频域资源上向终端设备发送N个第一信息。
可选的,第一信息还可以是公共信息。公共信息可以理解为非专用信息,或者理解为一个通信设备发给多个通信设备的信息。例如,以图1所示通信系统为例,基站向小区内中所有终端设备发送的信息,也即公共信息。或者,基站向小区内的一组终端设备发送的信息,也为公共信息。可选的,公共信息可以认为是向一组终端设备传输相同的信息。
例如,第一信息包括以下一项或多项:同步信号,系统信息。其中,N为大于1的正整数,同步信号可以为PSS和/或SSS,系统信息可以为PBCH,也可以为MIB。当第一信息包括SSS,PSS和PBCH时,第一信息也可以称为SSB。
N个频域资源与N个第一信息一一对应,也可以说一个频域资源对应一个第一信息。其中,N个频域资源不同,也即N个频域资源之间不重叠。其中,N个频域资源的频域范围可以为mmW的频域范围,例如,频率范围2(frequency range 2,FR2)频段对应的频域范围为24250MHz–52600MHz。N是协议预定义的,或网络设备自身确定的。
一种可选的方式中,N等于4或8。
一种可选的方式中,在S401之前,图4所示的通信方法还包括:S400:生成N个第一信息。
可选的,N个频域资源是不同的,也就是说,N个频域资源之间不重叠。可选的,N个频域资源之间不重叠,可以表示N个频域资源中的任意两个频域资源不包括相同的资源元素 (resource element,RE)。在一种示例中,假设N=4,也就是说包括4个频域资源,该4个频域资源对应相同的时域资源,如图5中的(a)所示,该4个频域资源中的任意相邻两个频域资源之间存在频域间隔,该4个频域资源之间不重叠;如图5中的(b)所示,该4个频域资源中的任意相邻两个频域资源之间不存在频域间隔,该4个频域资源之间不重叠。
以上描述了N个频域资源不同,接下来主要介绍N个第一信息中每个第一信息的中心频域位置。
在一种可能的实现方式中,N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。也即N个第一信息中每个第一信息的中心频域位置可以是根据同步栅格确定的。
第一信息的中心频域位置可以是指第一信息的中心频点或者中心频率。可选地,N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍,也即,N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为A*V,其中,V为同步栅格的大小,A为正整数。可选地,A可以满足以下两种情况,第一种情况:A可以满足如下条件:A*V大于或等于一个第一信息占用的频域资源。例如,一个第一信息占用20个RB,当子载波间隔为15kHz时,一个第一信息占用的频域资源为3.6MHz,也就是说A*V应该大于3.6MHz。第二种情况:A为能够保证A*V大于或等于一个第一信息占用的频域资源这个条件的最小整数。例如,假设V=1.2MHz,一个第一信息占用20个RB,当子载波间隔为15kHz时,一个第一信息占用的频域资源为3.6MHz,为了保证A*1.2大于或等于3.6MHz,A可以为大于或等于3的正整数,也就是说A的最小取值为3,其中,当A为能够保证A*V大于第一信息的频域资源时,A的取值为4。可选的,当N个频域资源在0-3000MHz范围内,一个同步栅格可以为1.2MHz;N个频域资源在3000-24250MHz范围内,一个同步栅格可以为1.44MHz;N个频域资源在24250-100000MHz范围内,一个同步栅格可以为17.28MHz。
每个第一信息的中心频域位置如何根据同步栅格确定,可以参考上述根据同步栅格确定SSB的频域位置,此处不再赘述。
在一种示例中,如图6所示,假设N=4,N个频域资源在24250-100000MHz范围内,4个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为一个同步栅格,其中,一个同步栅格可以为17.28MHz。
在上述方法中,通过N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍的方式,能够实现终端设备快速确定N个第一信息中每个第一信息的频域位置,减小时耗。
在又一种可能的实现方式中,N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的。
具体地,第一参考信息为N个第一信息中的一个第一信息。该第一参考信息可以为协议预定义的或网络设备配置的。该第一参考信息的中心频域位置可以是根据同步栅格确定的。可选地,第一参考信息可以为N个第一信息中占用的频域资源索引最小的第一信息,例如,如图7中编号为0的第一信息;或者第一参考信息为N个第一信息中占用的频域资源索引最大的第一信息,例如,如图7中编号为3的第一信息。例如,网络设备在相同的时域资源、以及4个频域资源上向终端设备发送4个第一信息,例如,4个第一信息的索引分别为0、1、2、3,其占用相同的时域资源,例如占据的时域资源为4个符号,占用的4个频域资源分别为第10-29个RB、第30-49个RB、第50-69个RB、第70-89个RB,其中,若RB的索引从 1开始编号,第10-29个RB是指索引编号为10-29的RB,第30-49个RB是指索引编号为30-49的RB,第50-69个RB是指索引编号为50-69的RB,第70-89个RB是指索引编号为70-89的RB,那么第10-29个RB的频域资源的索引最小,第70-89个RB的频域资源的索引最大。
可选地,N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,可以包括,N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置和预定义样式确定的,该预定义样式包括N个第一信息之间的排列方式。该预定义样式也可以是协议预定义的。N个第一信息之间的排列方式可以是指N个第一信息中相邻的两个第一信息之间是否存在频域间隔,其中,频域间隔可以为0,也可以不为0。
在一种示例中,如图7所示,N=4,其中,4个第一信息的索引分别为0、1、2、3,其中,协议预定义索引为0的第一信息为第一参考信息,则根据同步栅格确定第一参考信息的中心频域位置,然后根据第一参考信息的中心频域位置和预定义样式确定索引为1、2、3的第一信息的频域位置,其中预定义样式是协议预定义,4个第一信息之间的频域间隔为0。
在上述方法中,通过在N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的方式,能够实现终端设备能够快速确定N个第一信息中每个第一信息的频域位置,减小时耗。比如系统带宽有100MHz,如果没有同步栅格,就需要每1MHz都进行检测,则需要检测100次,如果同步栅格为10MHz,则只需要检测10次,从而能够实现快速确定N个第一信息中每个第一信息的频域位置。
以上描述了N个第一信息中每个第一信息的频域位置,接下来介绍N个第一信息中的对应的时频域资源能否用于下行数据传输。
在又一种可能的实现方式中,N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输。也可以理解为,N个第一信息中第三参考信息对应的时频域资源可以用于下行数据传输,且该N个第一信息中除第三参考信息之外的第一信息对应的时频域资源不能用于下行数据传输,其中,第三参考信息可以理解为除第二参考信息之外的一个或多个第一信息,第二参考信息可以理解为除第三参考信息之外的第一信息。其中,可以用于下行数据传输并不代表必须用于下行传输,可以理解为当有传输需求时,可以在对应时频资源上发送下行数据。
第二参考信息为所述N个第一信息中的一个第一信息。第二参考信息可以和上述第一参考信息相同,也可以不同。该第二参考信息也可以为协议预定义的或者网络设备配置的。例如,第二参考信息可以为N个第一信息中占用的频域资源索引最小的第一信息,例如,如图8中编号为0的第一信息;或者第二参考信息为N个第一信息中占用的频域资源索引最大的第一信息,例如,如图8中编号为3的第一信息。具体如上述所述,此处不再赘述。
可选地,可以通过网络设备发送的指示信息指示该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源是否用于下行数据传输,例如,通过组下行控制信息(downlink control information,DCI)或触发信令指示该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源是否用于下行数据传输。可选地,当通过组DCI或触发信令指示该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源是否用于下行数据传输,该组DCI或触发信令占用的频域资源属于第一频带,该用于下行数据传输的N个第一信息中除该第二参考信息之外的一个或多个第一信息占用的时频域资源属于第二频带,其中,第一频带的范围可以为410MHz–7125MHz,第二频带的 频域范围可以为24250MHz–52600MHz。组DCI可以理解为网络设备向多个终端设备发送一个DCI,相应的,该多个终端设备接收该一个DCI,对于该多个终端设备来说,该一个组DCI内承载的信息相同。当然该组DCI也可以理解为网络设备向多个终端设备发送一个组DCI,该一个组DCI中包括该多个终端设备对应的信息,也就是说,针对多个终端设备发送的各自的信息可以联合编码在一个DCI中承载。相应的,该多个终端设备从接收到的组DCI中解析自己的信息。
可选地,该N个第一信息中除该第二参考信息之外的一个或多个第一信息对应的时频域资源是否用于下行数据传输可以是通过第四参考信息中承载的信息指示的。例如,第四参考信息可以为N个第一信息中未用于传输下行数据的一个或者多个第一信息。或者,第四参考信息可以为时域上位于N个第一信息之后的N个第一信息中的一个或多个第一信息,在一种示例中,假设,周期1中N个第一信息中除第二参考信息之外的一个或多个第一信息对应的时频域资源用于下行数据传输,第四参考信息可以为周期2中的N个第一信息中的一个或多个第一信息,该第四参考信息承载用于指示周期1中的N个第一信息中除第二参考信息之外的一个或多个第一信息对应的时频域资源用于下行数据传输的信息,周期2为在时域上位于周期1之后的相邻周期。
在一种示例中,如图8所示,假设以N个第一信息为N个不同的信息为例,N=4,其中,4个第一信息的索引分别为0、1、2、3,其中,协议预定义索引为1的第一信息为第二参考信息,其中,第二参考信息对应的时频域资源不能用于下行数据传输,索引为0、1、3的第一信息对应的时频域资源可以用于下行数据传输。
在上述方法中,本申请实施例能够提供更多的下行数据传输的资源,提高下行数据传输的性能。而且通过上述方式,通过第二参考信息对应的时频资源不能用于下行传输,能够避免N个第一信息中每个第一信息对应的时频域资源均被用于下行数据传输时,有些终端设备无法接入网络设备的情况,也能够避免N个第一信息中每个第一信息对应的时频域资源均被用于下行数据传输时,基于第一信息的下行测量会受到影响的情况,从而尽可能减小下行数据传输带来的影响。
在一种可能的实现方式中,当N个第一信息中的R个第一信息对应的时频资源用于第一下行数据传输,N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,(N-R)个第一信息的空域配置与所述第一下行数据传输的空域配置相同,都为第一空域配置;其中,R为小于或者等于N的正整数;当N个第一信息对应的时频域资源均未用于下行数据传输,N个第一信息的空域配置为第二空域配置。
可选地,当N个第一信息对应的时频域资源均未用于下行数据传输可以是指当N个第一信息对应的时频域资源均用于第一信息的传输。
其中,第一空域配置对应第一波束宽度,第二空域配置对应第二波束宽度。波束宽度可以是指网络设备在某个SSB pattern下发送第一信息时天线方向图的主瓣宽度。其中,第二波束宽度可以大于第一波束宽度。在一种示例中,第二波束宽度为22.5度,第一波束宽度为2.8度。网络设备可以向终端设备发送第一指示信息,该第一指示信息用于指示第一波束宽度或第二波束宽度;由于第一波束的宽度或者第二波束的宽度分别与第一空域配置或第二空域配置对应,第一指示信息也可以理解为指示第一空域配置或第二空域配置。该第一指示信息可以为组DCI或触发信令,该组DCI或触发信令占用的频域资源属于第一频带,其中,第一频带的范围可以为410MHz–7125MHz。
在一种示例中,N=4,R=1,其中,4个第一信息的索引分别为0、1、2、3,假设索引为2的第一信息对应的时频资源用于下行数据传输,索引为0、1、3的第一信息对应的时频资源未用于下行数据传输,索引为0、1、3的第一信息的空域配置与索引为2的第一信息的空域配置相同,都为第一空域配置;假设索引分别为0、1、2、3的4个第一信息对应的时频域资源均未用于下行数据传输,也即4个第一信息对应的时频域资源均用于第一信息传输,该4个第一信息的空域配置为第二空域配置。其中,第一空域配置和第二空域配置可以不同,也可以相同。
通过上述方式,能够提高下行数据传输的可靠性。
基于N个第一信息,本申请提出两种可选的方式,方式一,网络设备在相同的时域资源、以及N个频域资源上向终端设备发送N个相同的第一信息。方式二,网络设备在相同的时域资源、以及N个频域资源上向终端设备发送N个不同的第一信息。因此,以下实施例主要分为两个部分描述进行详细描述。
方式一:网络设备在相同时域资源、以及N个频域资源上向终端设备发送N个相同的第一信息,也即,N个第一信息为N个相同的信息,也就是说,网络设备在相同的时域资源、以及N个频域资源上向终端设备发送N个重复的第一信息。
示例一,N个第一信息的索引相同,也就是说,N个第一信息包括相同的索引。
示例二,N个第一信息可以满足以下至少一项:N个第一信息包括SSB,N个第一信息中每个第一信息包括的PBCH承载的信息是相同的;或者,N个第一信息包括SSB,N个第一信息中每个第一信息包括的PBCH的DMRS是相同的;N个第一信息中每个第一信息的波束方向是相同的;N个第一信息中每个第一信息包括的同步信号是相同的;或者,N个第一信息中每个第一信息的波束相同。
具体的,每个第一信息包括的同步信号是相同的可以指每个第一信息包括的PSS是相同的;也可以是指每个第一信息包括的SSS是相同的;也可以是指每个第一信息包括的PSS和SSS均相同;DMRS是相同的可以是指DMRS序列是相同的;或者,波束方向是相同的可以指以下至少一项是相同的:空域信息、空域滤波器的配置信息、空域滤波配置、发送第一信息时的天线方向图,发送第一信息时采用的空域滤波器。在本申请实施例中,DMRS是指第一信息中包括的DMRS或第一信息中包括的PBCH的DMRS。
可选地,N是协议预定义的,或网络设备确定的,例如,当需要的网络覆盖范围较大时,N可以较大;当需要的网络覆盖范围较小时,N可以较小。例如,对于小区的边缘的用户,N可以较大;对于小区的中心的用户,N可以较小。通过如上方法,可以提高第一信息的覆盖范围。
在一种示例中,如图9所示,N=4,K=8,K=8表示在第一周期内包括8个时域位置,第一周期为20ms,该20ms包括网络设备循环发送N*K=4*8=32个第一信息的时长,也即网络设备在每个20ms发送索引为1-索引为8的第一信息。在该第一周期内包括8个时域位置,每个时域位置以及该每个时域位置对应的4个频域位置用于发送4个索引相同的第一信息,也即网络设备可以在相同的时域资源,以及4个频域资源上向终端设备发送4个索引相同的第一信息,例如,4个索引都为1的第一信息,4个索引都为2的第一信息,4个索引都为3的第一信息,4个索引都为4的第一信息,4个索引都为5的第一信息,4个索引都为6的第一信息,4个索引都为7的第一信息,4个索引都为8的第一信息,例如,4个索引都为1的第一信息,占用相同的时域资源,例如占据的时域资源为4个符号,占用的4个频域资源分 别为第10-29个RB、第30-49个RB、第50-69个RB、第70-89个RB;其中,4个索引都为2的第一信息,4个索引都为3的第一信息,4个索引都为4的第一信息,4个索引都为5的第一信息,4个索引都为6的第一信息,4个索引都为7的第一信息,4个索引都为8的第一信息可以参考4个索引都为1的第一信息的描述,此处不再赘述。
上述方式一中,当该N个第一信息为N个相同的第一信息时,相应的,该终端设备可以联合接收该N个相同的第一信息。
在上述方法中,通过重复发送相同的第一信息,能够提高第一信息传输的可靠性。
方式二:网络设备在相同的时域资源、以及N个频域资源上向终端设备发送N个不同的第一信息。也即,N个第一信息为N个不同的信息。可以理解,该N个第一信息的复用方式是频分复用的。关于N个第一信息不同,以下给出几种不同的示例,应理解,不同示例之间可以组合。
示例一,N个第一信息的索引不同,也就是说,N个第一信息包括不同的索引。
示例二,N个第一信息可以满足以下至少一项:N个第一信息包括SSB,N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;或者,N个第一信息包括SSB,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;N个第一信息中存在两个第一信息的波束方向是不同的;N个第一信息包括SSB,N个第一信息中存在两个第一信息包括同步信号是不同的;或者,N个第一信息中存在两个第一信息的波束不同。也就是说,N个第一信息可以满足以下至少一项:N个第一信息中每个第一信息包括的PBCH承载的信息是不完全相同的;N个第一信息中每个第一信息包括的PBCH的DMRS是不完全相同的;N个第一信息中每个第一信息的波束方向是不完全相同的;N个第一信息中每个第一信息包括的同步信号不完全相同;或者,N个第一信息中每个第一信息的波束不完全相同。
具体的,N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的可以包括N个第一信息中的每个第一信息包括的PBCH承载的信息均不相同的情况。N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的可以包括N个第一信息中的每个第一信息包括的PBCH的DMRS均不相同的情况。
可选地,N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的可以是指存在两个第一信息的PBCH的DMRS相同,而该两个第一信息的PBCH承载的信息不同。N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的可以是指存在两个第一信息的PBCH承载的信息是相同的,而该两个第一信息中PBCH的DMRS不同。在一种示例中,假设N=4,4个第一信息分别为信息1、信息2、信息3和信息4,其中,信息1和信息2的PBCH的DMRS是相同的,而信息1和信息2中的PBCH承载的信息是不同的。在又一种示例中,假设N=4,4个第一信息分别为信息1、信息2、信息3和信息4,其中,信息1和信息2的PBCH承载的信息是相同的,而信息1和信息2的PBCH的DMRS是不同的。
可选地,N个第一信息中存在两个第一信息包括的同步信号是不同的可以是指N个第一信息中存在两个第一信息包括的PSS是不同的,也可以是指N个第一信息中存在两个第一信息包括的SSS是不同的,也可以是指N个第一信息中存在两个第一信息包括的PSS和SSS均是不同的。DMRS是不同的可以是指DMRS序列是不同的。PBCH不同可以是指PBCH中承载和索引相关的信息是不同的。波束方向是不同的可以是指以下至少一项是不同的,以下至少一项包括:空域信息、空域滤波器的配置信息、空域滤波配置、发送第一信息时的天线方向图、发送第一信息采用的空域滤波器。
在一种示例中,假设N=4,4个第一信息分别为信息1、信息2、信息3和信息4,信息1和信息2包括的PBCH承载的信息是不同的,信息1、信息3、信息4包括的PBCH承载的信息是相同的。在又一种示例中,假设N=4,4个第一信息分别为信息1、信息2、信息3和信息4,信息1、信息2、信息3和信息4包括的PBCH承载的信息是均不相同的。
在一种示例中,如图10所示,N=4,K=2,K=2表示在第一周期内包括2个时域位置,第一周期为20ms,该20ms包括网络设备循环发送4*2=8个第一信息的时长,也即网络设备在每个20ms发送索引为0-索引为7的第一信息。在该第一周期内包括2个时域位置,每个时域位置以及该每个时域位置对应的4个频域位置用于发送4个索引不同的第一信息,也即,网络设备在相同的时域资源、以及4个频域资源上向终端设备发送4个不同的第一信息,例如,4个第一信息的索引分别为0、1、2、3,其占用相同的时域资源,例如占据的时域资源为4个符号,占用的4个频域资源分别为第10-29个RB、第30-49个RB、第50-69个RB、第70-89个RB;4个第一信息的索引分别为4、5、6、7,其占用相同的时域资源,例如占据的时域资源为4个符号,占用的4个频域资源分别为第10-29个RB、第30-49个RB、第50-69个RB、第70-89个RB。
在上述方法中,通过在相同的时域资源、以及N个频域资源上向终端设备发送该N个不同的第一信息的方式,能够降低发送第一信息的时域开销,从而节约网络设备的发送功耗,从而达到节能的目的。
可选的,关于方式二中N个第一信息不同,以下给出几种示例。
示例A:当N小于或等于第一预设值,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的。可选地,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的可以是指存在两个第一信息的PBCH承载的信息是相同的,而该两个第一信息中PBCH的DMRS不同。N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的可以是指存在两个第一信息的PBCH的DMRS相同,而该两个第一信息的PBCH承载的信息不同。
当N大于第一预设值,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的。可选地,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的可以理解为,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该两个第一信息包括的PBCH承载的信息是不同的。也就是说,包括的PBCH的DMRS是不同的两个第一信息和包括的PBCH承载的信息是不同的两个第一信息可以为相同的两个第一信息。在一种示例中,假设N=4,该4个第一信息分别为信息1、信息2、信息3和信息4,其中,信息1和信息2的包括的PBCH的DMRS是不同的,且信息1和信息2包括的PBCH承载的信息是不同的。
其中,N个第一信息的索引是通过以下至少一项进行指示:DMRS序列,PBCH承载的信息。也即,对于N个第一信息,不同的DMRS序列可以标识不同的索引。例如,N为64,DMRS有8个序列,该8个序列分别标识8个索引,8个DMRS序列可以通过3比特的不同状态字指示,PBCH承载的信息的比特域占3比特。DMRS序列对应的3比特、以及PBCH承载的信息的比特域占3比特共同能够区分64个第一信息的索引。
在一种示例中,假设N=4,第一预设值为8,由于4小于8,则4个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,或4个第一信息中存在两个第一信息包括的PBCH 承载的信息是不同的。在又一种示例中,假设N=4,第一预设值为8,则4个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且4个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的。
示例B:在又一种可能的实现方式中,当第一周期内最大的第一信息的个数L小于或等于第二预设值,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,或者N个第一信息中任意两个第一信息包括的PBCH的DMRS均不同。可选地,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的可以是指存在两个第一信息的PBCH承载的信息是相同的,而该两个第一信息中PBCH的DMRS不同。N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的可以是指存在两个第一信息的PBCH的DMRS相同,而该两个第一信息的PBCH承载的信息不同。
当第一周期内最大的第一信息的个数L大于第二预设值,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;或者,当第一周期内最大的第一信息的个数L大于第二预设值时,N个第一信息中任意两个第一信息包括的PBCH的DMRS和PBCH承载的信息至少有一个不同。可选地,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的可以理解为,N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该两个第一信息包括的PBCH承载的信息是不同的。也就是说,包括的PBCH的DMRS是不同的两个第一信息和包括的PBCH承载的信息是不同的两个第一信息可以为相同的两个第一信息。在一种示例中,假设N=4,该4个第一信息分别为信息1、信息2、信息3和信息4,其中,信息1和信息2的包括的PBCH的DMRS是不同的,且信息1和信息2包括的PBCH承载的信息是不同的。
可选地,L可以等于N*K,在一种示例中,如图9所示,N=4,K=8,L=N*K=32;如图10所示,N=4,K=2,L=N*K=8。可选地,L也可以是第一周期内第一信息的索引集合中的索引的个数。在一种示例中,第一周期内最大第一信息的个数可以为第一周期内第一信息的索引集合中的索引的个数。如图9所示,第一周期内第一信息的索引集合中有8个索引,也即第一周期内最大第一信息的个数L=8;如图10所示,第一周期内第一信息的索引集合中有8个索引,也即第一周期内最大第一信息的个数L=8。
可选地,第一周期内最大第一信息的个数可以指网络设备发送的第一信息的个数,也可以指协议规定的允许的最大的第一信息的个数。例如,协议规定,小区内允许发送的第一信息的最大的个数为8,网络设备发送的第一信息的个数为7。此时,小区内最大第一信息的个数既可以为8,也可以为7,本申请不做限制。
可选地,第一周期为网络设备循环发送N*K个第一信息的时长,N*K为小区内的最大第一信息的个数。如图9所示,第一周期为20ms,N=4,K=8,K=8表示在第一周期内包括8个时域位置,该20ms包括网络设备循环发送4*8=32个第一信息的时长,如图10所示,第一周期为20ms,N=4,K=2,K=2表示在第一周期内包括2个时域位置,该20ms包括网络设备循环发送4*2=8个第一信息的时长。
可选地,N个第一信息中任意两个第一信息包括的PBCH的DMRS和PBCH承载的信息至少有一个不同。例如,N个第一信息中任意两个第一信息包括的PBCH的DMRS均不相同,或者,N个第一信息中任意两个第一信息包括的PBCH承载的信息均不相同,或者,N个第一信息中任意两个第一信息包括的PBCH的DMRS和PBCH承载的信息均不同。
第一预设值可以与第二预设值相同也可以不同。第一预设值和第二预设值可以是通过协议预定义的,例如,第一预设值和第二预设值均为8。
在一种示例中,假设第一周期内最大的第一信息的个数L=4,第二预设值为8,由于4小于8,则N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;在又一种示例中,假设第一周期内最大的第一信息的个数L=12,第二预设值为8,由于12大于8,则N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的,且该两个第一信息包括的PBCH承载的信息是不同的。
在一种可能的实现方式中,网络设备在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,该K为该S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,N个频域位置中任意一个频域位置在S个第一周期内包括N*K个索引不同的第一信息,该第一周期为网络设备循环发送N*K个第一信息的时长,其中,S等于N,K为大于等于1的正整数,S为大于或者等于1的正整数,
Figure PCTCN2022139869-appb-000012
表示向上取整,i为大于或者等于1的正整数。
可选地,该N个频域位置中的每个频域位置表示的是承载第一信息的一整块频域,例如,连续的20个RB可以为一个频域位置。
可选地,时域位置表示的是承载第一信息的时域的一整块,例如,连续的4个OFDM符号占据的时域可以为一个时域位置。
在一种示例中,如图11所示,S=4,N=4,K=2,4个第一周期分别为第1个第一周期,第2个第一周期,第3个第一周期,第4个第一周期。第一周期可以为20ms,该20ms为网络设备循环发送4*2=8个第一信息的时长,也即网络设备在每个20ms发送索引为0-索引为7的第一信息。该4个第一周期中的每个第一周期内的时域位置的个数K=2,分别为第1个时域位置和第2个时域位置。4个频域位置分别为第10-29个RB、第30-49个RB、第50-69个RB、第70-89个RB;网络设备在4个第一周期和4个频域位置内向终端设备发送4*4*2=32个第一信息,每个第一周期发送N*K=4*2=8个不同的第一信息,每个第一周期内的8个第一信息对应8个不同的索引,例如,第1个第一周期的8个第一信息对应的8个不同的索引分别为0、1、2、3、4、5、6、7,第2个第一周期的8个第一信息对应的8个不同的索引分别为2、3、1、0、6、7、5、4;4个频域位置中每个频域位置的4个第一周期内的8个第一信息对应8个不同的索引,例如,第10-29个RB的4个第一周期内的8个第一信息对应的8个不同的索引分别为0、4、2、6、1、5、3、7;第30-49个RB的4个第一周期内的8个第一信息对应的8个不同的索引分别为1、5、3、7、0、4、2、6。
4个频域位置中任意一个频域位置在S=4个第一周期内包括8个索引不同的第一信息,例如,4个频域位置中的1个频域位置为第10-29个RB,该4个第一周期分别为第1个第一周期、第2个第一周期、第3个第一周期和第4个周期,则第10-29个RB在第1个第一周期、第2个第一周期、第3个第一周期和第4个周期内包括的8个索引不同的第一信息的索引为0、4、2、6、1、5、3、7。
在又一种可能的实现方式中,网络设备在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,该K为该S个第一周期中的每个第一周期内的时域位置的个数,每 个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引。
进一步可选的,N个频域位置中i个频域位置在
Figure PCTCN2022139869-appb-000013
个第一周期内包括N*K个索引不同的第一信息,该第一周期为网络设备循环发送N*K个第一信息的时长,其中,S等于N,K为大于等于1的正整数,S为大于或者等于1的正整数,
Figure PCTCN2022139869-appb-000014
表示向上取整,i为大于或者等于1的正整数。
在一种示例中,如图11所示,S=4,N=4,K=2,4个第一周期分别为第1个第一周期,第2个第一周期,第3个第一周期,第4个第一周期。第一周期可以为20ms,该20ms为网络设备循环发送4*2=8个第一信息的时长,也即网络设备在每个20ms发送索引为0-索引为7的第一信息。该4个第一周期中的每个第一周期内的时域位置的个数K=2,分别为第1个时域位置和第2个时域位置。4个频域位置分别为第10-29个RB、第30-49个RB、第50-69个RB、第70-89个RB;网络设备在4个第一周期和4个频域位置内向终端设备发送4*4*2=32个第一信息,每个第一周期发送N*K=4*2=8个不同的第一信息,每个第一周期内的8个第一信息对应8个不同的索引,例如,第1个第一周期的8个第一信息对应的8个不同的索引分别为0、1、2、3、4、5、6、7,第2个第一周期的8个第一信息对应的8个不同的索引分别为2、3、1、0、6、7、5、4;4个频域位置中每个频域位置的4个第一周期内的8个第一信息对应8个不同的索引,例如,第10-29个RB的4个第一周期内的8个第一信息对应的8个不同的索引分别为0、4、2、6、1、5、3、7;第30-49个RB的4个第一周期内的8个第一信息对应的8个不同的索引分别为1、5、3、7、0、4、2、6。
以i=2为例,4个频域位置中2个频域位置在
Figure PCTCN2022139869-appb-000015
个第一周期内包括8个索引不同的第一信息,例如,4个频域位置中的2个频域位置分别为第10-29个RB、第30-49个RB,该2个第一周期分别为第1个第一周期和第2个第一周期,则第10-29个RB、第30-49个RB在第1个第一周期和第2个第一周期内包括的8个索引不同的第一信息的索引为0、1、4、5、2、3、6、7。
以i=3为例,4个频域位置中3个频域位置在
Figure PCTCN2022139869-appb-000016
个第一周期内至少包括8个索引不同的第一信息,例如,4个频域位置中的3个频域位置分别为第10-29个RB、第30-49个RB,第50-69个RB,该2个第一周期分别为第1个第一周期和第2个第一周期,则第10-29个RB、第30-49个RB,第50-69个RB在第1个第一周期和第2个第一周期内包括12个第一信息,该12个第一信息的索引分别为0、1、2、4、5、6、2、3、1、6、7、5。由于该12个第一信息中有索引序号相同的第一信息,所以第10-29个RB、第30-49个RB,第50-69个RB在第1个第一周期和第2个第一周期内至少包括N*K=4*2=8个索引不同的第一信息。
步骤S402:终端设备接收来自网络设备的一个或多个第一信息。
其中,该一个或多个第一信息属于N个第一信息,且该N个第一信息对应相同的时域资源、以及N个频域资源,N个频域资源与N个第一信息一一对应,N为大于1的正整数。第一信息包括以下一项或者多项:同步信号,系统信息。
在一种可能的实现方式中,N个第一信息属于N*K个第一信息,该N*K个第一周期为第一周期内的N*K个不同的第一信息,终端设备能够检测到该N*K个第一信息的最小时长为T,T是根据该N*K、所述终端设备的带宽,以及第一周期的时长P确定,K为每个第一周期内的时域位置的个数。
在一种可能的实现方式中,终端设备在第一周期内,以及终端设备的带宽内能够检测到 的第一信息的个数为M。也就是说,终端设备在最小时长T内能够检测到第一周期内网络设备发送的第一信息的最大个数N*K,其中,T是根据N*K、M以及第一周期的时长P确定。进一步可选地,K、N、T、M满足以下关系:
Figure PCTCN2022139869-appb-000017
其中,
Figure PCTCN2022139869-appb-000018
表示向上取整。
在一种示例中,如图12所示,N=4,K=1,N*K=4*1=4,也就是说第一周期内网络设备发送的第一信息的最大个数为N*K=4*1=4个,例如,M=1,也就是说终端设备在第一周期内,以及根据终端设备的带宽内能够检测到的第一信息的个数为1,则终端设备能够检测到该4个第一信息的最小时长为
Figure PCTCN2022139869-appb-000019
例如,M=2,则终端设备能够检测到该4个第一信息的最小时长为
Figure PCTCN2022139869-appb-000020
Figure PCTCN2022139869-appb-000021
例如,M=4,则终端设备能够检测到该4个第一信息的最小时长为
Figure PCTCN2022139869-appb-000022
Figure PCTCN2022139869-appb-000023
在上述方法中,通过上述方式,终端设备能够在最小时长T内检测到第一周期内网络设备发送的第一信息的最大个数N*K。也就是说,终端设备能够在较短的时间内检测到一个周期内网络设备发送的第一信息的最大个数N*K。而且,能够为具有不同带宽能力的终端设备提供更好的服务。
步骤S403:终端设备向网络设备发送随机接入信道(random access channel,RACH)。
可选地,第一信息包括RACH的配置信息,该配置信息包括RACH的所有配置参数或部分配置参数。当N个第一信息都为同步信号时,该配置信息包括的RACH的所有配置参数或部分配置参数在同步信号中;当N个第一信息为同步信号和系统信息时,RACH的一部分配置参数在同步信号中,另一部分配置参数可以在系统信息中。
可选地,终端设备可以根据第一信息确定发送RACH的时频资源,序列,空域配置的一项或者多项。例如,终端设备确定第一周期内的第一信息的个数L;终端设备确定第一时频资源集合,第一时频资源集合中包括B个时频资源。L个第一信息和第一时频资源集合对应。终端设备确定L个时频资源子集合。L个时频资源子集合和L个第一信息一一对应。L个时频资源子集合属于第一时频资源集合。可选的,第一时频资源子集合是L个时频资源子集合中和终端设备接收到的第一信息所对应的时频资源子集合。终端设备采用第一RACH时频资源发送RACH。第一RACH时频资源属于第一时频资源子集合。可选地,L小于等于B。
可选地,第一RACH时频资源对应A个第一信息。A个第一信息包括终端设备接收到的第一信息。A个第一信息对应C个前导码。A个第一信息和A个前导码子集合一一对应。A个前导码子集合包括的前导码属于C个前导码。终端设备通过第一前导码子集合中的前导码发送RACH。第一前导码子集合为A个前导码子集合中与终端设备接收到的第一信息对应的前导码子集合。可选地,A小于等于C。
步骤S404:网络设备接收来自终端设备的RACH。
可选地,第一信息包括RACH的配置信息,该配置信息包括RACH的一个会多个配置参数。当N个第一信息都为同步信号时,该配置信息包括的RACH的所有配置参数或部分配置参数在同步信号中;当N个第一信息为同步信号和系统信息时,配置信息包括的RACH的参数中的一部分参数在同步信号中配置,另一部分参数在系统信息中配置。
可选地,网络设备在发送第一信息对应的时频资源上接收来自终端设备的RACH。例如,网络设备确定第一周期内的第一信息的个数L;网络设备确定第一时频资源集合,第一时频 资源集合中包括B个时频资源。L个第一信息和第一时频资源集合对应。网络设备确定L个时频资源子集合。L个时频资源子集合和L个第一信息一一对应。L个时频资源子集合属于第一时频资源集合。可选的,第一时频资源子集合是L个时频资源子集合中和网络设备发送的第一信息所对应的时频资源子集合。网络设备在第一RACH时频资源接收RACH。第一RACH时频资源属于第一时频资源子集合。可选地,L小于等于B。
第一RACH时频资源对应A个第一信息。A个第一信息包括网络设备发送的第一信息。A个第一信息对应C个前导码。A个第一信息和A个前导码子集合一一对应。A个前导码子集合包括的前导码属于C个前导码。网络设备通过第一前导码子集合中的前导码接收RACH。第一前导码子集合为A个前导码子集合中与网络设备发送的第一信息对应的前导码子集合。可选地,A小于等于C。
在上述方法中,通过在相同的时域资源、以及N个频域资源上向终端设备发送N个第一信息的方式,能够在不降低网络覆盖性能的情况下,降低发送第一信息的时域开销,降低网络设备的发送功耗,有利于网络设备的节能。
可以理解的是,为了实现上述实施例中功能,网络设备和终端设备包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本申请中所公开的实施例描述的各示例的单元及方法步骤,本申请能够以硬件或硬件和计算机软件相结合的形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用场景和设计约束条件。
图13和图14为本申请的实施例提供的可能的通信装置的结构示意图。这些通信装置可以用于实现上述方法实施例中网络设备或终端设备的功能,因此也能实现上述方法实施例所具备的有益效果。在本申请的实施例中,该通信装置可以是如图1所示的无线接入网设备(如图1中的110a和110b),也可以是如图1所示的终端(如图1中的120a-120j),还可以是应用于网络设备或终端设备的模块(如芯片)。
如图13所示,通信装置1300包括处理单元1310和收发单元1320。通信装置1300用于实现上述图4中所示的方法实施例中网络设备或终端设备的功能。
当通信装置1300用于实现图4所示的方法实施例中网络设备的功能时:该收发单元1320,用于在相同的时域资源、以及N个频域资源上向终端设备发送该N个第一信息,其中,该N个频域资源与该N个第一信息一一对应,该第一信息包括以下一项或多项:同步信号,系统信息;该N为大于1的正整数。
当通信装置1300用于实现图4所示的方法实施例中终端设备的功能时:该收发单元1320,用于接收来自网络设备的一个或多个第一信息,该一个或多个第一信息属于N个第一信息,该N个第一信息对应相同的时域资源、以及N个频域资源,其中,该N个频域资源与该N个第一信息一一对应,该N为大于1的正整数,该第一信息包括以下一项或者多项:同步信号,系统信息。
有关上述处理单元1310和收发单元1320更详细的描述可以直接参考图4所示的方法实施例中相关描述直接得到,这里不加赘述。
需要说明的是,各个模块的实现及有益效果还可以对应参照图4所示的方法实施例的相应描述。
如图14所示,通信装置1400包括处理器1410和接口电路1420。处理器1410和接口电 路1420之间相互耦合。可以理解的是,接口电路1420可以为收发器或输入输出接口。可选的,通信装置1400还可以包括存储器1430,用于存储处理器1410执行的指令或存储处理器1410运行指令所需要的输入数据或存储处理器1410运行指令后产生的数据。
当通信装置1400用于实现图4所示的方法时,处理器1410用于实现上述处理单元1310的功能,接口电路1420用于实现上述收发单元1320的功能。
当上述通信装置为应用于终端设备的芯片时,该终端芯片实现上述方法实施例中终端设备的功能。该终端芯片从终端设备中的其它模块(如射频模块或天线)接收信息,该信息是网络设备发送给终端设备的;或者,该终端芯片向终端设备中的其它模块(如射频模块或天线)发送信息,该信息是终端设备发送给网络的。
当上述通信装置为应用于网络设备的模块时,该网络设备模块实现上述方法实施例中网络设备的功能。该网络设备模块从网络设备中的其它模块(如射频模块或天线)接收信息,该信息是终端设备发送给网络设备的;或者,该网络设备模块向网络设备中的其它模块(如射频模块或天线)发送信息,该信息是网络设备发送给终端设备的。这里的网络设备模块可以是网络设备的基带芯片,也可以是DU或其他模块,这里的DU可以是开放式无线接入网(open radio access network,O-RAN)架构下的DU。
可以理解的是,本申请的实施例中的处理器可以是中央处理单元(Central Processing Unit,CPU),还可以是其它通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现场可编程门阵列(Field Programmable Gate Array,FPGA)或者其它可编程逻辑器件、晶体管逻辑器件,硬件部件或者其任意组合。通用处理器可以是微处理器,也可以是任何常规的处理器。
本申请的实施例中的方法步骤可以通过硬件的方式来实现,也可以由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成,软件模块可以被存放于随机存取存储器、闪存、只读存储器、可编程只读存储器、可擦除可编程只读存储器、电可擦除可编程只读存储器、寄存器、硬盘、移动硬盘、CD-ROM或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息。当然,存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外,该ASIC可以位于基站或终端中。当然,处理器和存储介质也可以作为分立组件存在于基站或终端中。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序或指令。在计算机上加载和执行所述计算机程序或指令时,全部或部分地执行本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、网络设备、用户设备或者其它可编程装置。所述计算机程序或指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机程序或指令可以从一个网站站点、计算机、服务器或数据中心通过有线或无线方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是集成一个或多个可用介质的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,例如,软盘、硬盘、磁带;也可以是光介质,例如,数字视频光盘;还可以是半导体介质,例如,固态硬盘。该计算机可读存储介质可以是易失性或非易失性存储介质,或可包括易失性和非易失性两种类型的存储介质。
在本申请的各个实施例中,如果没有特殊说明以及逻辑冲突,不同的实施例之间的术语 和/或描述具有一致性、且可以相互引用,不同的实施例中的技术特征根据其内在的逻辑关系可以组合形成新的实施例。
本申请中,“至少一个”是指一个或者多个,“多个”是指两个或两个以上。“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A,B可以是单数或者复数。在本申请的文字描述中,字符“/”,一般表示前后关联对象是一种“或”的关系;在本申请的公式中,字符“/”,表示前后关联对象是一种“相除”的关系。“包括A,B和C中的至少一个”可以表示:包括A;包括B;包括C;包括A和B;包括A和C;包括B和C;包括A、B和C。
可以理解的是,在本申请的实施例中涉及的各种数字编号仅为描述方便进行的区分,并不用来限制本申请的实施例的范围。上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定。

Claims (55)

  1. 一种通信方法,其特征在于,包括:
    在相同的时域资源、以及N个频域资源上向终端设备发送N个第一信息,其中,所述N个频域资源与所述N个第一信息一一对应,所述N个第一信息包括以下一项或多项:同步信号,系统信息,所述N为大于1的正整数。
  2. 根据权利要求1所述的方法,其特征在于,所述在相同的时域资源、以及N个频域资源上向终端设备发送所述N个第一信息,包括:
    在相同的时域资源、以及N个频域资源上向终端设备发送所述N个相同的第一信息。
  3. 根据权利要求2所述的方法,其特征在于,
    所述N个第一信息的索引相同。
  4. 根据权利要求1-3任一项所述的方法,其特征在于,所述系统信息包括物理广播信道PBCH,所述N个第一信息满足以下至少一项:
    所述N个第一信息中每个第一信息包括的PBCH承载的信息是相同的;所述N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;或者,所述N个第一信息中每个第一信息的波束方向是相同的。
  5. 根据权利要求1所述的方法,其特征在于,所述在相同的时域资源、以及N个频域资源上向终端设备发送所述N个第一信息,包括:
    在相同的时域资源、以及N个频域资源上向终端设备发送所述N个不同的第一信息。
  6. 根据权利要求5所述的方法,其特征在于,
    所述N个第一信息的索引不同。
  7. 根据权利要求5或6所述的方法,其特征在于,所述系统信息包括物理广播信道PBCH,所述N个第一信息满足以下至少一项:
    所述N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;所述N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,所述N个第一信息中存在两个第一信息的波束方向是不同的。
  8. 根据权利要求1-7任一项所述的方法,其特征在于,
    所述N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。
  9. 根据权利要求1-7任一项所述的方法,其特征在于,
    所述N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,所述第一参考信息属于所述N个第一信息。
  10. 根据权利要求1-9任一项所述的方法,其特征在于,
    所述N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且所述N个第一信息中除所述第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,所述第二参考信息为所述N个第一信息中的一个第一信息。
  11. 根据权利要求1-10任一项所述的方法,其特征在于,
    当所述N个第一信息中的R个第一信息对应的时频资源用于第一下行数据传输,所述N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,所述(N-R)个第一信息的空域配置与所述第一下行数据传输的空域配置相同,都为第一空域配置;所述R为小于或者等于N的正整数;
    当所述N个第一信息对应的时频域资源均未用于下行数据传输,所述N个第一信息的空域配置为第二空域配置;其中,所述第一空域配置和所述第二空域配置不同。
  12. 根据权利要求5-11任一项所述的方法,其特征在于,
    在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,所述K为所述S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,所述N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,所述N个频域位置中的每i个频域位置在
    Figure PCTCN2022139869-appb-100001
    个第一周期内包括N*K个索引不同的第一信息,所述第一周期为网络设备循环发送N*K个第一信息的时长,其中,所述S等于所述N,所述K为大于等于1的正整数,所述S为大于或者等于1的正整数,
    Figure PCTCN2022139869-appb-100002
    表示向上取整,所述i为大于或者等于1的正整数。
  13. 一种通信方法,其特征在于,包括:
    接收来自网络设备的一个或多个第一信息,所述一个或多个第一信息属于N个第一信息,所述N个第一信息对应相同的时域资源、以及N个频域资源,其中,所述N个频域资源与所述N个第一信息一一对应,所述N为大于1的正整数,所述第一信息包括以下一项或者多项:同步信号,系统信息。
  14. 根据权利要求13所述的方法,其特征在于,所述在相同的时域资源、以及N个频域资源上接收来自网络设备的N个第一信息中的一个或多个,包括:
    在相同的时域资源、以及N个频域资源上接收来自所述网络设备的N个相同的第一信息中的一个或多个。
  15. 根据权利要求14所述的方法,其特征在于,
    所述N个第一信息的索引相同。
  16. 根据权利要求13-15任一项所述的方法,所述系统信息包括物理广播信道PBCH,其特征在于,所述N个第一信息满足以下至少一项:
    所述N个第一信息中每个第一信息包括的物理广播信道PBCH承载的信息是相同的;所述N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;所述N个第一信息中每个第一信息的波束方向是相同的。
  17. 根据权利要求13所述的方法,其特征在于,所述N个第一信息为N个不同的信息,所述在相同的时域资源、以及N个频域资源上接收来自网络设备的N个第一信息中的一个或多个,包括:
    在相同的时域资源、以及N个频域资源上接收来自所述网络设备的N个不同的第一信息中的一个或多个。
  18. 根据权利要求17所述的方法,其特征在于,
    所述N个第一信息的索引不同。
  19. 根据权利要求17或18所述的方法,其特征在于,所述系统信息包括物理广播信道PBCH,所述N个第一信息满足以下至少一项:
    所述N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;所述N个不同的第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,所述N个第一信息中存在两个第一信息的波束方向是不同的。
  20. 根据权利要求13-19任一项所述的方法,其特征在于,
    所述N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。
  21. 根据权利要求13-19任一项所述的方法,其特征在于,
    所述N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,所述第一参考信息属于所述N个第一信息。
  22. 根据权利要求13-21任一项所述的方法,其特征在于,
    所述N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且所述N个第一信息中除所述第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,所述第二参考信息为所述N个第一信息中的一个第一信息。
  23. 根据权利要求13-22任一项所述的方法,其特征在于,
    当所述N个第一信息中有R个第一信息对应的时频资源用于第一下行数据传输,所述N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,所述(N-R)个第一信息的空域配置与所述第一下行数据传输的空域配置相同,都为第一空域配置;所述R为小于或者等于N的正整数;
    当所述N个第一信息对应的时频域资源均未用于下行数据传输,所述N个第一信息的空域配置为第二空域配置;其中,所述第一空域配置和所述第二空域配置不同。
  24. 根据权利要求17-23任一项所述的方法,其特征在于,
    所述N个第一信息属于N*K个第一信息,所述N*K个第一信息为第一周期内的N*K个不同的第一信息,所述终端设备能够检测到所述N*K个第一信息的最小时长为T,所述T是根据所述N*K、所述终端设备的带宽,以及所述第一周期的时长P确定,所述K为每个第一 周期内的时域位置的个数。
  25. 根据权利要求24所述的方法,其特征在于,所述终端设备在所述第一周期内,以及所述终端设备的带宽内能够检测到的第一信息的个数为M,所述T、N、K、M满足以下关系:
    Figure PCTCN2022139869-appb-100003
    其中,
    Figure PCTCN2022139869-appb-100004
    表示向上取整。
  26. 一种通信装置,其特征在于,包括处理单元和收发单元,
    所述收发单元,用于在相同的时域资源、以及N个频域资源上向终端设备发送N个第一信息,其中,所述N个频域资源与所述N个第一信息一一对应,所述第一信息包括以下一项或多项:同步信号,系统信息;所述N为大于1的正整数。
  27. 根据权利要求26所述的装置,其特征在于,
    所述收发单元,用于在相同的时域资源、以及N个频域资源上向终端设备发送所述N个相同的第一信息。
  28. 根据权利要求27所述的装置,其特征在于,
    所述N个第一信息的索引相同。
  29. 根据权利要求26-28任一项所述的装置,其特征在于,所述系统信息包括物理广播信道PBCH,所述N个第一信息满足以下至少一项:
    所述N个第一信息中每个第一信息包括的PBCH承载的信息是相同的;所述N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;或者,所述N个第一信息中每个第一信息的波束方向是相同的。
  30. 根据权利要求26所述的装置,其特征在于,
    所述收发单元,用于在在相同的时域资源、以及N个频域资源上向终端设备发送所述N个不同的第一信息。
  31. 根据权利要求30所述的装置,其特征在于,
    所述N个第一信息的索引不同。
  32. 根据权利要求30或31所述的装置,其特征在于,所述系统信息包括物理广播信道PBCH,所述N个第一信息满足以下至少一项:
    所述N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;所述N个第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,所述N个第一信息中存在两个第一信息的波束方向是不同的。
  33. 根据权利要求26-32任一项所述的装置,其特征在于,
    所述N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数 倍。
  34. 根据权利要求26-32任一项所述的装置,其特征在于,
    所述N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,所述第一参考信息属于所述N个第一信息。
  35. 根据权利要求26-34任一项所述的装置,其特征在于,
    所述N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且所述N个第一信息中除所述第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,所述第二参考信息为所述N个第一信息中的一个第一信息。
  36. 根据权利要求26-35任一项所述的装置,其特征在于,
    当所述N个第一信息中的R个第一信息对应的时频资源用于第一下行数据传输,所述N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,所述(N-R)个第一信息的空域配置与所述第一下行数据传输的空域配置相同,都为第一空域配置;所述R为小于或者等于N的正整数;
    当所述N个第一信息对应的时频域资源均未用于下行数据传输,所述N个第一信息的空域配置为第二空域配置;其中,所述第一空域配置和所述第二空域配置不同。
  37. 根据权利要求30-36任一项所述的装置,其特征在于,
    所述收发单元,用于在S个第一周期内和N个频域位置向终端设备发送S*N*K个第一信息,所述K为所述S个第一周期中的每个第一周期内的时域位置的个数,每个第一周期内发送N*K个不同的第一信息,每个第一周期内的N*K个第一信息对应N*K个不同的索引,所述N个频域位置中每个频域位置的S个第一周期内的N*K个第一信息对应N*K个不同的索引,所述N个频域位置中的每i个频域位置在
    Figure PCTCN2022139869-appb-100005
    个第一周期内包括N*K个索引不同的第一信息,所述第一周期为网络设备循环发送N*K个第一信息的时长,其中,所述S等于所述N,所述K为大于等于1的正整数,所述S为大于或者等于1的正整数,
    Figure PCTCN2022139869-appb-100006
    表示向上取整,所述i为大于或者等于1的正整数。
  38. 一种通信装置,其特征在于,包括处理单元和收发单元,
    所述收发单元,用于接收来自网络设备的一个或多个第一信息,所述一个或多个第一信息属于N个第一信息,所述N个第一信息对应相同的时域资源、以及N个频域资源,其中,所述N个频域资源与所述N个第一信息一一对应,所述N为大于1的正整数,所述第一信息包括以下一项或者多项:同步信号,系统信息。
  39. 根据权利要求38所述的装置,其特征在于,
    所述收发单元,用于在相同的时域资源、以及N个频域资源上接收来自所述网络设备的N个相同的第一信息中的一个或多个。
  40. 根据权利要求39所述的装置,其特征在于,
    所述N个第一信息的索引相同。
  41. 根据权利要求38-40任一项所述的装置,其特征在于,所述系统信息包括物理广播信道PBCH,其特征在于,所述N个第一信息满足以下至少一项:
    所述N个第一信息中每个第一信息包括的物理广播信道PBCH承载的信息是相同的;所述N个第一信息中每个第一信息包括的PBCH的解调参考信号DMRS是相同的;所述N个第一信息中每个第一信息的波束方向是相同的。
  42. 根据权利要求38所述的装置,其特征在于,
    所述收发单元,用于在相同的时域资源、以及N个频域资源上接收来自所述网络设备的N个不同的第一信息中的一个或多个。
  43. 根据权利要求42所述的装置,其特征在于,
    所述N个第一信息的索引不同。
  44. 根据权利要求42或43所述的装置,其特征在于,所述系统信息包括物理广播信道PBCH,所述N个第一信息满足以下至少一项:
    所述N个第一信息中存在两个第一信息包括的PBCH承载的信息是不同的;所述N个不同的第一信息中存在两个第一信息包括的PBCH的DMRS是不同的;或者,所述N个第一信息中存在两个第一信息的波束方向是不同的。
  45. 根据权利要求38-44任一项所述的装置,其特征在于,
    所述N个第一信息中的相邻两个第一信息的中心频域位置之间的间隔为同步栅格的整数倍。
  46. 根据权利要求38-44任一项所述的装置,其特征在于,
    所述N个第一信息中每个第一信息的频域位置是通过第一参考信息的频域位置确定的,所述第一参考信息属于所述N个第一信息。
  47. 根据权利要求38-46任一项所述的装置,其特征在于,
    所述N个第一信息中第二参考信息对应的时频域资源不能用于下行数据传输,且所述N个第一信息中除所述第二参考信息之外的一个或多个第一信息对应的时频域资源可以用于下行数据传输,所述第二参考信息为所述N个第一信息中的一个第一信息。
  48. 根据权利要求38-47任一项所述的装置,其特征在于,
    当所述N个第一信息中有R个第一信息对应的时频资源用于第一下行数据传输,所述N个第一信息中有(N-R)个第一信息对应的时频资源未用于下行数据传输,所述(N-R)个第一信息的空域配置与所述第一下行数据传输的空域配置相同,都为第一空域配置;所述R为小于或者等于N的正整数;
    当所述N个第一信息对应的时频域资源均未用于下行数据传输,所述N个第一信息的空域配置为第二空域配置;其中,所述第一空域配置和所述第二空域配置不同。
  49. 根据权利要求42-48任一项所述的装置,其特征在于,
    所述N个第一信息属于N*K个第一信息,所述N*K个第一信息为第一周期内的N*K个不同的第一信息,所述终端设备能够检测到所述N*K个第一信息的最小时长为T,所述T是根据所述N*K、所述终端设备的带宽,以及所述第一周期的时长P确定,所述K为每个第一周期内的时域位置的个数。
  50. 根据权利要求49所述的装置,其特征在于,
    所述终端设备在所述第一周期内,以及所述终端设备的带宽内能够检测到的第一信息的个数为M,所述T、N、K、M满足以下关系:
    Figure PCTCN2022139869-appb-100007
    其中,
    Figure PCTCN2022139869-appb-100008
    表示向上取整。
  51. 一种通信装置,其特征在于,包括处理器和接口电路,所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置,所述处理器通过逻辑电路或执行代码指令用于实现如权利要求1至12中任一项所述的方法。
  52. 一种通信装置,其特征在于,包括处理器和接口电路,所述接口电路用于接收来自所述通信装置之外的其它通信装置的信号并传输至所述处理器或将来自所述处理器的信号发送给所述通信装置之外的其它通信装置,所述处理器通过逻辑电路或执行代码指令用于实现如权利要求13至25中任一项所述的方法。
  53. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质中存储计算机程序指令,当所述计算机程序指令被通信装置执行时,实现如权利要求1至12中任一项所述的方法,或者实现如权利要求13至25中任一项所述的方法。
  54. 一种计算机程序产品,其特征在于,所述计算机程序产品中包括计算机程序指令,当所述计算机程序指令被通信装置执行时,实现如权利要求1至12中任一项所述的方法,或者实现如权利要求13至25中任一项所述的方法。
  55. 一种通信系统,其特征在于,包括至少一个如权利要求51所述的通信装置,和至少一个如权利要求52所述的通信装置。
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