WO2020237451A1 - Procédé de transmission d'informations, dispositif associé, et système - Google Patents

Procédé de transmission d'informations, dispositif associé, et système Download PDF

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Publication number
WO2020237451A1
WO2020237451A1 PCT/CN2019/088477 CN2019088477W WO2020237451A1 WO 2020237451 A1 WO2020237451 A1 WO 2020237451A1 CN 2019088477 W CN2019088477 W CN 2019088477W WO 2020237451 A1 WO2020237451 A1 WO 2020237451A1
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Prior art keywords
frequency
subframe
communication device
res
frequency unit
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PCT/CN2019/088477
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English (en)
Chinese (zh)
Inventor
罗之虎
金哲
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华为技术有限公司
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Priority to PCT/CN2019/088477 priority Critical patent/WO2020237451A1/fr
Priority to CN201980096038.4A priority patent/CN113785644B/zh
Publication of WO2020237451A1 publication Critical patent/WO2020237451A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communication technology, in particular to an information transmission method, related equipment and system.
  • the Internet of Things is the "Internet of Things". It expands the user end of the Internet to any item and item for information exchange and communication. Such a communication method is also called machine type communication (MTC), and the communication node is called an MTC terminal.
  • MTC machine type communication
  • Typical IoT applications include smart grids, smart agriculture, smart transportation, smart homes, and environmental monitoring. Since the Internet of Things needs to be applied in a variety of scenarios, such as from outdoor to indoor, from above ground to underground, many special requirements are put forward for the design of Internet of Things.
  • NDCCH narrowband physical downlink control channel
  • NPDSCH narrowband physical downlink shared channel
  • the bandwidth of the NB-IoT system is 180kHz
  • the bandwidth occupied by NPDSCH transmission is 180kHz
  • the bandwidth occupied by NPDCCH transmission is 90kHz or 180kHz.
  • the arrowed curve between NPDCCH and NPDSCH in Figure 1 indicates scheduling, which indicates that the NPDSCH pointed to by the arrow is scheduled by the NPDCCH at the end without the arrow. It can be seen from Figure 1 that the NPDCCH or NPDSCH between different users, or between the NPDCCH and NPDSCH of the same user is TDM.
  • the NPDCCH of UE1 and the NPDSCH of UE1 are TDM
  • the NPDCCH of UE1 and the NPDCCH of UE2 are TDM
  • the NPDSCH of UE1 and the NPDSCH of UE2 are TDM.
  • the NPDSCH only supports TDM.
  • TDM Time Division Multiple Access
  • the embodiments of the present invention provide an information transmission method, related equipment and system, which can reduce the duration of downlink transmission and thereby reduce inter-cell interference.
  • an embodiment of the present invention provides an information transmission method, which is applied to the first communication device side.
  • the method includes: a first communication device determines N frequency units, the N frequency units adopt a frequency hopping mode, wherein each frequency unit includes M carriers or M resource blocks RB or M subcarriers, where N is greater than 1. Positive integer, M is a positive integer.
  • the first communication device sends N pieces of configuration information to the second communication device, and the N pieces of configuration information are in one-to-one correspondence with the N frequency units, and the N pieces of configuration information respectively include frequency domain position information of the corresponding frequency units.
  • the first communication device sends data to the second communication device on N frequency domain units.
  • a network device sends configuration information of multiple frequency units to a terminal device, and the bandwidth, frequency domain position, and time domain frequency hopping interval of multiple frequency units can be flexibly configured, and is not limited to narrowband frequency hopping.
  • the data sent by the network equipment to the terminal equipment hops between these multiple frequency units, and the frequency diversity gain of frequency hopping can be used to improve coverage performance, reduce time domain transmission time, and thereby reduce inter-cell interference.
  • the above N frequency units satisfy at least one of the following: the deployment mode is the same; the number of antenna ports of the reference signal is the same; within a subframe or within a time slot or the first time slot of a subframe The position of the start symbol used for data transmission within is the same.
  • the deployment mode includes independent deployment mode, protection band deployment mode or in-band deployment mode.
  • the constraints among multiple frequency units satisfy at least one of the following: the same deployment mode is adopted, the number of antenna ports of the reference signal is the same, in a subframe or a time slot or the first time of a subframe The position of the start symbol used for data transmission in the slot is the same, which can ensure that the number of REs available for data symbol resource mapping on different frequency units is the same.
  • Subframe-level repetition is used on multiple frequency units or one transmission block needs to be mapped to multiple For the subframes on the frequency unit, the same rate matching method can be used, thereby reducing the complexity of combining and decoding by the terminal device.
  • the number of resource elements (resource elements, RE) that can be used to transmit data symbols in a first frequency unit in a subframe is greater than or equal to the number of resource elements (RE) that can be used to transmit data symbols in a subframe in the second frequency unit.
  • the number of REs, the REs that can be used to transmit data symbols in the second frequency unit in one subframe are used for data symbol mapping based on the REs that can be used to transmit data symbols in the first frequency unit in one subframe, and the second frequency unit REs that cannot be used to transmit data symbols in a subframe participate in counting but are not used for data symbol mapping.
  • the deployment mode of multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the multiple frequency units in a subframe or a time slot or the first time of a subframe There is no restriction on the position of the starting symbol for data transmission in the slot, which can increase the flexibility of network deployment.
  • the resource mapping method or the time domain frequency hopping interval subframe-level repetition or a transmission block is used on multiple frequency units
  • the same rate matching method can be used, which reduces the complexity of combining and decoding for terminal equipment.
  • the number of REs that can be used to transmit data symbols in the first frequency unit in a subframe is less than or equal to the number of REs that can be used to transmit data symbols in the second frequency unit in a subframe, then the first frequency
  • the location and number of REs that can be used to transmit data symbols in the unit in one subframe are the same as the location and number of REs that can be used to transmit data symbols in the second frequency unit in one subframe.
  • the deployment mode of multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the multiple frequency units in a subframe or a time slot or the first time of a subframe There is no restriction on the position of the starting symbol for data transmission in the slot, which can increase the flexibility of network deployment.
  • the resource mapping method or the time domain frequency hopping interval subframe-level repetition or a transmission block is used on multiple frequency units
  • the same rate matching method can be used, which reduces the complexity of combining and decoding for terminal equipment.
  • consecutive K subframes used to transmit the same data symbol are located in the same frequency unit, and K is a positive integer.
  • the deployment mode of multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the multiple frequency units in a subframe or a time slot or the first time of a subframe There is no restriction on the position of the starting symbol for data transmission in the slot, which can increase the flexibility of network deployment.
  • subframe-level repetition or a transmission block is used on multiple frequency units
  • the same rate matching method can be used, which reduces the complexity of combining and decoding for terminal equipment.
  • the above method further includes: the first communication device sends instruction information to the second communication device, where the instruction information is used to indicate the time domain frequency hopping interval of the N frequency units.
  • the above method further includes: the first communication device sends instruction information to the second communication device, where the instruction information is used to indicate the time domain frequency hopping interval of each of the N frequency units.
  • any two frequency units among the above N frequency units are not adjacent in the frequency domain.
  • Implementing the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration.
  • any two frequency units among the above N frequency units are adjacent in the frequency domain.
  • Implementing the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration.
  • the above-mentioned time-domain frequency hopping interval is an integer multiple of a subframe or an integer multiple of a time slot or an integer multiple of a symbol.
  • Implementing the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration.
  • the time domain frequency hopping intervals of different frequency units among the above N frequency units are the same or different.
  • the flexibility of frequency hopping mode configuration can be increased.
  • the bandwidths of different frequency units among the above N frequency units are the same or different.
  • the implementation of the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration, at the same time can increase the compatibility with other communication systems, reduce the protection bandwidth, and improve the utilization of spectrum resources.
  • the subcarrier spacing of different frequency units among the above N frequency units is the same or different.
  • the implementation of the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration, at the same time can increase the compatibility with other communication systems, reduce the protection bandwidth, and improve the utilization of spectrum resources.
  • the foregoing first communication device is a network device
  • the second communication device is a terminal device.
  • an embodiment of the present invention provides an information transmission method, which is applied to the second communication device side.
  • the method includes: the second communication device receives N pieces of configuration information sent by the first communication device, the N pieces of configuration information are in one-to-one correspondence with N frequency units, and the N pieces of configuration information respectively include frequency domain position information of the corresponding frequency units , N frequency units adopt a frequency hopping mode, and each frequency unit of the N frequency units includes M carriers or M resource blocks RB or M subcarriers, where N is a positive integer greater than 1, and M is a positive integer.
  • the second communication device determines the frequency domain positions of the N frequency domain units according to the N configuration information. After that, the second communication device receives the data sent by the first communication device from the N frequency units.
  • the terminal device receives the configuration information of multiple frequency units, and the bandwidth, frequency domain position, and time domain frequency hopping interval of the multiple frequency units can be flexibly configured, and is not limited to narrowband frequency hopping.
  • the data of the terminal equipment hops among these multiple frequency units, and the frequency diversity gain of frequency hopping can be used to improve the coverage performance, reduce the time domain transmission time, and thereby reduce the inter-cell interference.
  • the above N frequency units satisfy at least one of the following: the deployment mode is the same; the number of antenna ports of the reference signal is the same; within a subframe or within a time slot or the first time slot of a subframe The position of the start symbol used for data transmission within is the same.
  • the deployment mode includes independent deployment mode, protection band deployment mode or in-band deployment mode.
  • the constraints among multiple frequency units satisfy at least one of the following: the same deployment mode is adopted, the number of antenna ports of the reference signal is the same, in a subframe or a time slot or the first time of a subframe The position of the start symbol used for data transmission in the slot is the same, which can ensure that the number of REs available for data symbol resource mapping on different frequency units is the same.
  • Subframe-level repetition is used on multiple frequency units or one transmission block needs to be mapped to multiple For the subframes on the frequency unit, the same rate matching method can be used, thereby reducing the complexity of combining and decoding by the terminal device.
  • the number of REs that can be used to transmit data symbols in the first frequency unit in a subframe is greater than or equal to the number of REs that can be used to transmit data symbols in the second frequency unit in a subframe, then the second frequency unit
  • the REs that the unit can be used to transmit data symbols in a subframe perform data symbol mapping based on the REs that can be used to transmit data symbols in the first frequency unit in a subframe, where the second frequency unit is not available in a subframe
  • the RE used to transmit data symbols participates in counting but is not used for data symbol mapping.
  • the deployment mode of multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the multiple frequency units in a subframe or a time slot or the first time of a subframe There is no restriction on the position of the starting symbol for data transmission in the slot, which can increase the flexibility of network deployment.
  • the resource mapping method or the time domain frequency hopping interval subframe-level repetition or a transmission block is used on multiple frequency units
  • the same rate matching method can be used, which reduces the complexity of combining and decoding for terminal equipment.
  • the number of REs that can be used to transmit data symbols in the first frequency unit in a subframe is less than or equal to the number of REs that can be used to transmit data symbols in the second frequency unit in a subframe, then the first frequency
  • the location and number of REs that can be used to transmit data symbols in the unit in one subframe are the same as the location and number of REs that can be used to transmit data symbols in the second frequency unit in one subframe.
  • the deployment mode of multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the multiple frequency units in a subframe or a time slot or the first time of a subframe There is no restriction on the position of the starting symbol for data transmission in the slot, which can increase the flexibility of network deployment.
  • the resource mapping method or the time domain frequency hopping interval subframe-level repetition or a transmission block is used on multiple frequency units
  • the same rate matching method can be used, which reduces the complexity of combining and decoding for terminal equipment.
  • consecutive K subframes used to transmit the same data symbol are located in the same frequency unit, and K is a positive integer.
  • the deployment mode of multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the number of antenna ports of the reference signal on the multiple frequency units, the multiple frequency units in a subframe or a time slot or the first time of a subframe There is no restriction on the position of the starting symbol for data transmission in the slot, which can increase the flexibility of network deployment.
  • subframe-level repetition or a transmission block is used on multiple frequency units
  • the same rate matching method can be used, which reduces the complexity of combining and decoding for terminal equipment.
  • the above method further includes: the second communication device receives instruction information sent by the first communication device, where the instruction information is used to indicate the time domain frequency hopping interval of the N frequency units.
  • the above method further includes: the second communication device receives instruction information sent by the first communication device, where the instruction information is used to indicate the time domain frequency hopping interval of each of the N frequency units.
  • any two frequency units among the above N frequency units are not adjacent in the frequency domain.
  • Implementing the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration.
  • any two frequency units among the above N frequency units are adjacent in the frequency domain.
  • Implementing the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration.
  • the above-mentioned time-domain frequency hopping interval is an integer multiple of a subframe or an integer multiple of a time slot or an integer multiple of a symbol.
  • Implementing the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration.
  • the time domain frequency hopping intervals of different frequency units among the above N frequency units are the same or different.
  • the frequency hopping mode configuration can be more flexible.
  • the bandwidths of different frequency units among the above N frequency units are the same or different.
  • the implementation of the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration, at the same time can increase the compatibility with other communication systems, reduce the protection bandwidth, and improve the utilization of spectrum resources.
  • the subcarrier spacing of different frequency units among the above N frequency units is the same or different.
  • the implementation of the embodiments of the present invention can increase the flexibility of frequency hopping mode configuration, at the same time can increase the compatibility with other communication systems, reduce the protection bandwidth, and improve the utilization of spectrum resources.
  • the foregoing first communication device is a network device
  • the second communication device is a terminal device.
  • an embodiment of the present invention provides a communication device.
  • the communication device is a first communication device.
  • the first communication device may include multiple functional modules or units for correspondingly performing the information transmission provided in the first aspect. Method, or the information transmission method provided in any one of the possible implementation manners of the first aspect.
  • the first communication device includes: a processing module and a transceiver module.
  • the processing module is used to determine N frequency units, the N frequency units adopt the frequency hopping mode, and each frequency unit of the N frequency units includes M carriers or M resource blocks RB or M subcarriers, where N is A positive integer greater than 1, M is a positive integer;
  • the transceiver module is configured to send N pieces of configuration information to the second communication device, where the N pieces of configuration information correspond to the N frequency units one-to-one, and the N pieces of configuration information respectively include frequency domain position information of the corresponding frequency units;
  • the transceiver module is also used to send data to the second communication device on N frequency domain units.
  • the transceiver module is further configured to send indication information to the second communication device, where the indication information is used to indicate the time domain frequency hopping interval of the N frequency units.
  • the transceiver module is further configured to send indication information to the second communication device, where the indication information is used to indicate the time domain frequency hopping interval of each frequency unit in the N frequency units.
  • an embodiment of the present invention provides another communication device.
  • the communication device is a second communication device.
  • the second communication device may include multiple functional modules or units for correspondingly executing the information provided in the second aspect.
  • the transmission method, or the information transmission method provided in any one of the possible implementation manners of the second aspect.
  • the second communication device includes: a transceiver module and a processing module.
  • the transceiver module is used to receive N pieces of configuration information sent by the first communication device.
  • the N pieces of configuration information correspond to the N frequency units one-to-one, and the N pieces of configuration information respectively include the frequency domain position information of the corresponding frequency units.
  • Frequency units adopt frequency hopping mode, and each frequency unit of the N frequency units includes M carriers or M resource blocks RB or M subcarriers, where N is a positive integer greater than 1, and M is a positive integer;
  • a processing module configured to determine the frequency domain positions of the N frequency domain units according to the N configuration information
  • the transceiver module is also used to receive data sent by the first communication device from N frequency units.
  • the transceiver module is further configured to: receive indication information sent by the first communication device, where the indication information is used to indicate the time domain frequency hopping interval of the N frequency units.
  • the transceiver module is further configured to: receive indication information sent by the first communication device, where the indication information is used to indicate the time domain frequency hopping interval of each frequency unit among the N frequency units.
  • an embodiment of the present invention provides a communication device, which is used to execute the information transmission method described in the first aspect.
  • the communication device is a first communication device, and the first communication device may include a memory and a processor, a transmitter, and a receiver coupled with the memory.
  • the transmitter is used to support the first communication device to perform the step of sending information by the first communication device in the information transmission method provided in the first aspect.
  • the receiver is used to support the first communication device to perform the step of receiving information by the first communication device in the information transmission method provided in the first aspect.
  • the transmitter and receiver can be integrated into a transceiver.
  • the processor is configured to support the first communication device to execute other processing steps of the first communication device in the information transmission method provided in the first aspect except for sending information and receiving information.
  • the transmitter and receiver in the embodiment of the present invention may be integrated together, or may be coupled through a coupler.
  • the memory is used to store the implementation code of the information transmission method described in the first aspect, and the processor is used to execute the program code stored in the memory, that is, to execute the information transmission method provided in the first aspect, or the first aspect may The information transmission method provided by any one of the implementation modes.
  • an embodiment of the present invention provides another communication device, which is used to execute the information transmission method described in the second aspect.
  • the communication device is a second communication device, and the second communication device may include a memory and a processor, a transmitter, and a receiver coupled with the memory.
  • the transmitter is used to support the second communication device to perform the step of sending information by the second communication device in the information transmission method provided in the second aspect.
  • the receiver is used to support the second communication device to perform the step of receiving information by the second communication device in the information transmission method provided in the second aspect.
  • the transmitter and receiver can be integrated into a transceiver.
  • the processor is configured to support the second communication device to perform other processing steps of the second communication device in the information transmission method provided in the second aspect, except for sending information and receiving information.
  • the transmitter and receiver in the embodiment of the present invention may be integrated together, or may be coupled through a coupler.
  • the memory is used to store the implementation code of the information transmission method described in the second aspect, and the processor is used to execute the program code stored in the memory, that is, to execute the information transmission method provided in the second aspect, or the second aspect may The information transmission method provided by any one of the implementation modes.
  • the memory and the processor can be integrated together or coupled through a coupler.
  • an embodiment of the present invention provides a communication system, including a first communication device and a second communication device.
  • the first communication device may be the first communication device described in the foregoing third or fifth aspect
  • the second communication device may be the second communication device described in the foregoing fourth or sixth aspect equipment.
  • an embodiment of the present invention provides a computer-readable storage medium with instructions stored on the readable storage medium, which when run on a computer, cause the computer to execute the information transmission method described in any of the above aspects.
  • embodiments of the present invention provide another computer program product containing instructions, which when run on a computer, cause the computer to execute the information transmission method described in any of the above aspects.
  • an embodiment of the present invention provides a communication chip.
  • the communication chip may include a processor and one or more interfaces coupled to the processor.
  • the processor can be used to call the information transmission method provided by any one of the above aspects from the memory, and execute the instructions contained in the program.
  • the interface can be used to output the processing result of the processor.
  • Figure 1 is a schematic diagram of data transmission
  • Figure 2 is a schematic diagram of a wireless communication system provided by an embodiment of the present invention.
  • Figure 3 is a resource mapping pattern of three deployment modes provided by an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of an information transmission method provided by an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a frequency hopping mode provided by an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of another frequency hopping mode provided by an embodiment of the present invention.
  • Figure 7 is a resource mapping pattern provided by an embodiment of the present invention.
  • FIG. 8 is another resource mapping pattern provided by an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a logical structure of a first communication device according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of a logical structure of a second communication device according to an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of the hardware structure of a network device provided by an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of the hardware structure of a terminal device according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a communication chip provided by an embodiment of the present invention.
  • FIG. 2 shows a wireless communication system related to an embodiment of the present invention.
  • the wireless communication system 100 may work in an authorized frequency band or an unlicensed frequency band.
  • the wireless communication system 100 is not limited to a long term evolution (LTE) system, but may also be a 5G system that will evolve in the future, a new radio technology (NR) system, and the like. It is understandable that the use of unlicensed frequency bands can increase the system capacity of the wireless communication system 100.
  • the wireless communication system 100 includes: one or more network devices 101 and one or more terminal devices 102. among them:
  • the network device 101 may perform wireless communication 103 with the terminal device 102 through one or more antennas. Each network device 101 can provide communication coverage for its corresponding coverage area 104.
  • the coverage area 104 corresponding to the network device 101 may be divided into multiple sectors (sector), where one sector corresponds to a part of the coverage area (not shown).
  • the network device 101 may include: an evolved NodeB (evolved NodeB, eNB or eNodeB), or a next-generation node (next-generation NodeB, gNB), and so on.
  • the wireless communication system 100 may include several different types of network devices 101, such as a macro base station (macro base station), a micro base station (micro base station), and so on.
  • the network device 101 may apply different wireless technologies, such as cell wireless access technology or WLAN wireless access technology.
  • the terminal device 102 is a device with a wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on the water (such as a ship); Can be deployed in the air (e.g. airplane, balloon, etc.).
  • the terminal device 102 may be a machine type communication (eMTC) terminal, a mobile phone (mobile phone), a tablet computer (Pad), a portable computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, Augmented reality (AR) terminal equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, smart grid (smart grid) Wireless terminals in ), wireless terminals in transportation safety, wireless terminals in smart cities, smart cars, wireless terminals in smart homes, and so on.
  • eMTC machine type communication
  • VR virtual reality
  • AR Augmented reality
  • wireless terminals in industrial control wireless terminals in self-driving
  • wireless terminals in remote medical smart grid (smart grid) Wireless terminals in )
  • wireless terminals in transportation safety wireless terminals in smart cities, smart cars, wireless terminals in smart homes, and so on.
  • the embodiment of this application does not limit the application scenario.
  • Terminal equipment can sometimes be referred to as user equipment (UE), terminal (terminal), access terminal, UE unit, UE station, mobile equipment, mobile station, mobile station (mobile station), mobile terminal, mobile client , Mobile unit, remote station, remote terminal equipment, remote unit, wireless unit, wireless communication equipment, user agent or user device, etc.
  • the terminal device 102 may be an NB-IoT terminal or an enhanced machine type communication (eMTC) terminal.
  • the working bandwidth of the eMTC terminal may generally be small, which is smaller than the working bandwidth of the LTE system.
  • the working bandwidth of an eMTC terminal may be a narrowband NB, one NB includes 6 consecutive physical resource blocks (PRB), and one physical resource block PRB includes 12 subcarriers (SC).
  • the terminal device 102 may also include a smart home device, and may also include a mobile terminal such as a mobile phone.
  • the terminal device 102 may also communicate with other terminal devices.
  • a mobile phone can communicate with a smart home device
  • an MTC device can communicate with another MTC device.
  • the wireless communication system 100 may also be an IoT system, an NB-IoT system, an MTC system, an eMTC system, and other evolved systems (such as evolved enhanced machine communication (Further eMTC, FeMTC), evolved enhanced machine Type communication (Even Further eMTC, eFeMTC) or additional machine type communication (additional MTC, AMTC), etc.).
  • evolved enhanced machine communication Frther eMTC, FeMTC
  • Even Further eMTC, eFeMTC evolved enhanced machine Type communication
  • additional MTC additional MTC, AMTC
  • the network device 101 may send a reference signal (RS) to the terminal device 102.
  • the RS may include, but is not limited to: cell-specific reference signal (CRS) or channel state information reference signal (channel state information reference signal, CSI-RS).
  • CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • the first communication device mentioned in the following embodiments may be the network device 101 in the embodiment shown in FIG. 2, and the second communication device may be the terminal device 102 in the embodiment shown in FIG. 2.
  • Carrier refers to a segment of continuous resources in the frequency domain.
  • the bandwidth of the carrier may be 180kHz, 200kHz, 360kHz, 720kHz, 1.4MHz, 3MHz, 5MHz, 10MHz, 15MHz, 20MHz, 25MHz, 30MHz, 40MHz, 50MHz, 60MHz, 80MHz, 100MHz, 200MHz or 400MHz.
  • one RB includes one subframe in the time domain (for example, 14 symbols (symbol)) and 12 subcarriers (SC) in the frequency domain.
  • one RB includes 12 subcarriers. For example, if the bandwidth of one subcarrier is 15kHz, then the bandwidth of one RB is 180kHz, or if the bandwidth of one subcarrier is 30kHz, then the bandwidth of one RB is 360kHz.
  • NB-IoT supports three deployment modes: standalone operation, guardband operation, and in-band operation. among them,
  • Independent deployment Use an independent frequency band, such as one or more carriers in the GSM network, to transmit NB-IoT.
  • Guard band deployment Use one or more unused resource blocks in the E-UTRA carrier guard band to transmit NB-IoT, and the bandwidth of one resource block is 180kHz.
  • In-band deployment Use one or more resource blocks in a normal E-UTRA carrier to transmit NB-IoT, and the bandwidth of one resource block is 180kHz.
  • Figure 3 is a schematic diagram of the resource locations of reference signals for three deployment modes within an RB (indicated by 14 symbols in the time domain and 12 subcarriers in the frequency domain).
  • a small white square in Figure 3 indicates that it can be used for data symbols.
  • the mapped resource element (RE), or RE that can be used for resource mapping.
  • Guard band deployment may be the use of unused frequency resources in the guard band of the existing communication system
  • in-band deployment may be the use of frequency resources in the carrier of the existing communication system, such as occupying part of the transmission bandwidth resources in the existing communication system.
  • the existing system here can be NR or LTE or UMTS or GSM.
  • the main technical solution for coverage enhancement of the NB-IoT system is duplication in the downlink.
  • NPDSCH In the downlink, except for NPDCCH which can support FDM, NPDSCH only supports TDM.
  • NPDCCH which can support FDM
  • NPDSCH For co-frequency networking, or when downlink transmission requires a lot of repetition or takes a long time, inter-cell interference will be more serious.
  • This application mainly proposes a frequency hopping scheme, which can improve coverage performance and reduce the duration of downlink transmission through frequency diversity.
  • a resource mapping method is proposed to reduce the combined translation of terminal equipment. The complexity of the code.
  • an embodiment of the present invention provides an information transmission method.
  • the information transmission method includes but is not limited to the following steps:
  • the first communication device determines N frequency units, the N frequency units adopt the frequency hopping mode, the frequency units include M carriers or M resource blocks RB or M subcarriers, N is a positive integer greater than 1, and M is a positive integer .
  • the first communication device sends N pieces of configuration information to the second communication device, and the second communication device receives N pieces of configuration information sent by the first communication device.
  • the N pieces of configuration information correspond to the N frequency units one-to-one, and the N pieces of configuration information. Each includes the frequency domain position information of the corresponding frequency unit.
  • the second communication device determines the frequency domain positions of the N frequency domain units according to the foregoing N pieces of configuration information.
  • the first communication device sends data to the second communication device on the aforementioned N frequency units, and the second communication device receives the data sent by the first communication device from the N frequency units.
  • N may be a positive integer greater than or equal to 2, such as 2 or 3 or 4 or 5 or 6.
  • the data here refers to generally, including service data and/or signaling.
  • the signaling can be downlink control signaling or uplink control signaling.
  • the data may include PDSCH, PDCCH, NPDSCH, NPDCCH, etc.
  • the first communication device may be a network device (for example, a base station), and the second communication device may be a terminal (for example, an MTC terminal).
  • a network device for example, a base station
  • the second communication device may be a terminal (for example, an MTC terminal).
  • the above N frequency units are used to transmit data symbols to the second communication device.
  • the number of N can be the same or different.
  • the number of frequency units used for mapping data symbols is two, and for UE2, the number of frequency units used for mapping data symbols is three.
  • each frequency unit includes one or more consecutive carriers, or includes one or more consecutive (resource block, RB), or includes one or more consecutive subcarriers (Subcarrier), or includes one or more consecutive subcarriers.
  • multiple narrow bands (narrow band, NB), or include one or more continuous subbands (Subband).
  • the bandwidths of frequency unit 0 and frequency unit 1 are both 1 RB
  • the PDSCH of UE1 performs frequency hopping on frequency unit 0 and frequency unit 1
  • the frequency hopping sequence is: frequency unit 0, frequency unit 1.
  • the PDSCH of UE2 also performs frequency hopping on frequency unit 0 and frequency unit 1, and the frequency hopping sequence is: frequency unit 1 and frequency unit 0.
  • the subsequent frequency hopping can be in a preset order, for example, it can be agreed to start from the frequency unit of the initial frequency hopping, and hop according to the configured frequency unit index order
  • the frequency may also be hopped in the order configured in the above configuration information.
  • the above configuration information also needs to include the frequency domain frequency hopping sequence to indicate the frequency hopping sequence of the above N frequency units.
  • the network device sends to UE1 has two pieces of configuration information, one of which includes the frequency domain location information of frequency unit 0, and the other configuration information includes frequency domain location information of frequency unit 1.
  • one or both of the two configuration information It also includes the frequency hopping sequence of UE1, and the frequency hopping sequence is: frequency unit 0, frequency unit 1.
  • the network device sends two pieces of configuration information to UE2.
  • One piece of configuration information includes the frequency domain position information of frequency unit 0, and the other piece of configuration information includes frequency domain position information of frequency unit 1.
  • one or both of the two configuration information The configuration information also includes the frequency hopping sequence of UE2, and the frequency hopping sequence is: frequency unit 1, frequency unit 0.
  • the bandwidths of different frequency units among the above N frequency units may be the same or different, which is not limited in this application.
  • both frequency unit 0 and frequency unit 1 include 1 RB, and the bandwidths are both 180 kHz.
  • both frequency unit 0 and frequency unit 1 include 1 RB, and the bandwidth of frequency unit 0 is 180 kHz, and the bandwidth of frequency unit 1 is 360 kHz.
  • the subcarrier spacing of different frequency units in the above N frequency units may be the same or different, which is not limited in this application.
  • the frequency unit 0 and the frequency unit 1 both include 1 RB, and the sub-carrier interval is 15 kHz.
  • both frequency unit 0 and frequency unit 1 include 1 RB, and the subcarrier interval of frequency unit 0 is 15 kHz, and the subcarrier interval of frequency unit 1 is 30 kHz.
  • the aforementioned N frequency units occupy discontinuous frequency domain resources, that is, the aforementioned N frequency units are not adjacent in the frequency domain, that is, any two frequency units of the N frequency units are in frequency domain.
  • the domains are not adjacent. Any two frequency units among the N frequency units may be separated by several subcarriers, or several RBs, or several carriers in the frequency domain. For example, in FIG. 5, frequency unit 0 and frequency unit 1 are not adjacent in the frequency domain, and frequency unit 0 and frequency unit 1 are separated by 1 RB.
  • the foregoing N frequency units occupy continuous frequency domain resources, that is, the foregoing N frequency units are adjacent in the frequency domain.
  • the foregoing N frequency units are adjacent in the frequency domain.
  • frequency unit 0 and frequency unit 1 are adjacent in the frequency domain.
  • the above N frequency units may also be partly adjacent in the frequency domain, and partly not adjacent, which is not limited in this application.
  • the first communication device may also send instruction information to the second communication device, where the instruction information is used to indicate the time-domain frequency hopping interval of the above-mentioned N frequency units.
  • the meaning of the time domain frequency hopping interval can be the length of time during which no frequency hopping occurs in the time domain, or the length of the interval between two adjacent frequency hopping in the time domain.
  • only one common time-domain frequency hopping interval may be configured, and the time-domain frequency hopping intervals of N frequency units are all equal to the common time-domain frequency hopping interval.
  • the instruction information and the foregoing N pieces of configuration information may be sent to the terminal through the same message, or may be sent to the terminal separately through different messages.
  • the instruction information and the above N configuration information are sent to the UE together through a system message or an RRC message, or the above N configuration information may be sent to the UE through a system message or an RRC message, and then the instruction information is sent to the UE through DCI.
  • the time domain frequency hopping interval can also be pre-defined in the protocol, and the network device does not need to send the time domain frequency hopping interval of the above N frequency units to the terminal, saving signaling overhead. In this case, the time-domain frequency hopping interval of each frequency unit is the same.
  • the time domain frequency hopping interval may be an integer multiple of a subframe or an integer multiple of a slot or an integer multiple of a symbol.
  • the time domain frequency hopping interval may be an integer multiple of a subframe as an example for description.
  • the time-domain frequency hopping intervals of different frequency units among the above N frequency units may be the same or different, which is not limited in this application.
  • frequency unit 0 and frequency unit 1 both include 1 RB, and the time-domain frequency hopping interval is 1 subframe.
  • both frequency unit 0 and frequency unit 1 include 1 RB, and the time domain frequency hopping interval of frequency unit 0 is 1 subframe, and the time domain frequency hopping interval of frequency unit 1 is 2 subframes.
  • the first communication device may also send instruction information to the second communication device, where the instruction information is used to indicate the time domain frequency hopping interval of each frequency unit among the above-mentioned N frequency units.
  • the time-domain frequency hopping interval of each of the above-mentioned N frequency units can be configured independently.
  • each frequency unit of the N frequency units corresponds to a time-domain frequency hopping interval, that is, a total of N frequency units need to be configured. Time domain frequency hopping interval.
  • the starting time for frequency hopping of the above N frequency units may be frame 0 or subframe 0.
  • the starting position of the time domain frequency hopping can be pre-defined by the protocol, and the network device does not need to send the starting position of the time domain frequency hopping to the terminal.
  • UE2 if UE2 receives the time domain frequency hopping interval sent by the network device at time t1, UE2 calculates the frequency hopping position according to the current subframe position and time domain frequency hopping interval, between time t1 and time t2 Receive data on frequency unit 1, perform frequency hopping at time t2, switch to receive data from frequency unit 0, and so on.
  • the frequency domain position information of the frequency unit may include the absolute frequency number of the frequency unit, or the absolute frequency number of the frequency unit + offset information, or the start frequency point of the frequency unit + stop frequency point, or the start of the frequency unit Frequency + bandwidth, or the end frequency + bandwidth including the frequency unit.
  • the bandwidth of frequency unit 0 is 1 RB
  • the frequency domain position of frequency unit 0 is RB0
  • the bandwidth of frequency unit 1 is 1 RB
  • the frequency domain position of frequency unit 1 is RB2
  • the two configuration information sent by the device to UE1 include the index numbers or absolute frequency numbers of RB0 and RB2, respectively, to indicate the frequency domain resources occupied by the PDSCH frequency hopping of UE1.
  • each of the foregoing N pieces of configuration information may also include at least one of the following information: deployment mode, number of antenna ports, mapping position of reference signals, number of REs mapped to reference signals, types of reference signals, Effective subframe configuration, downlink gap (DL gap) configuration.
  • the terminal device can determine the mapping pattern according to the configuration information, and then can receive data symbols from the REs used for mapping the data symbols in the above N frequency units.
  • the network device sends the configuration information of multiple frequency units to the terminal device.
  • the bandwidth, frequency domain position, and time domain frequency hopping interval of multiple frequency units can be flexibly configured, not limited to narrowband frequency hopping. , And not limited to system bandwidth.
  • the data of the terminal equipment hops among these multiple frequency units, and the frequency diversity gain of frequency hopping can be used to improve the coverage performance, reduce the time domain transmission time, and thereby reduce the inter-cell interference.
  • the above N frequency units satisfy at least one of the following: the deployment mode is the same; the number of antenna ports of the reference signal is the same; one subframe or one time slot or the first time slot of a subframe is used for data The start symbol position of the transmission is the same.
  • the deployment mode includes independent deployment mode, protection band deployment mode or in-band deployment mode. This is to ensure that the data symbol mapping patterns of the above N frequency units are the same.
  • the constraints among multiple frequency units satisfy at least one of the following: the same deployment mode is adopted, the number of antenna ports of the reference signal is the same, within a subframe or within a time slot or the first time slot of a subframe
  • the start symbol positions used for data transmission are the same, which can ensure that the number of REs that can be used for data symbol resource mapping on different frequency units is the same.
  • Subframe-level repetition is used on multiple frequency units or one transmission block needs to be mapped to multiple
  • the same rate matching method can be used, thereby reducing the complexity of combining and decoding by the terminal device.
  • the advantage of subframe-level repetition is that multiple symbols can be directly combined to improve performance.
  • the symbols transmitted on two subframes can be exactly the same, and the accuracy of frequency offset estimation can be improved through differential operations.
  • the reference signal may include a demodulation reference signal (DMRS) for a data channel, a demodulation reference signal for a control channel, a positioning reference signal (positioning reference signal, PRS), a channel state information reference signal ( channel state information-reference signal (CSI-RS), wake-up signal (wake up signal, WUS), phase-tracking reference signal (PTRS), cell-specific reference signal (CRS), Narrowband reference signal (narrowband reference signal, NRS), narrowband positioning reference signal (narrowband positioning reference signal), narrowband wakeup signal (narrowband wakeup signal, NWUS), or MTC wakeup signal (MTC wakeup signal, MWUS).
  • DMRS demodulation reference signal
  • PRS positioning reference signal
  • CSI-RS channel state information reference signal
  • wake-up signal wake-up signal
  • WUS phase-tracking reference signal
  • CRS cell-specific reference signal
  • NRS Narrowband reference signal
  • NRS narrowband positioning reference signal
  • NWUS narrowband wakeup signal
  • MTC wakeup signal M
  • a terminal device receives configuration information of multiple frequency units, and the bandwidth, frequency domain position, and time domain frequency hopping interval of the multiple frequency units can all be flexibly configured.
  • the data of the terminal equipment hops among these multiple frequency units, and the frequency diversity gain of frequency hopping can be used to improve the coverage performance, reduce the time domain transmission time, and thereby reduce the inter-cell interference.
  • the constraints among multiple frequency units satisfy at least one of the following: use the same deployment mode, the same number of antenna ports of the reference signal, and use for data transmission in a subframe or in a time slot or in the first time slot of a subframe
  • the same starting symbol position can ensure that the number of REs that can be used for data symbol resource mapping on different frequency units is the same, and subframe-level repetition is used on multiple frequency units, or one transport block needs to be mapped to subframes on multiple frequency units.
  • the same rate matching method can be used, thereby reducing the complexity of combining and decoding by the terminal device.
  • the deployment modes of the N frequency units may be different, or the number of antenna ports of the reference signal on the N frequency units may be different, or the N frequency units may be in one subframe or one time slot.
  • the position of the start symbol used for data transmission in the first time slot of a subframe or in a subframe may be different.
  • This method can be deployed between multiple different systems for network deployment and is more flexible.
  • the number of REs that can be used for data symbol resource mapping on different frequency units may be different, and subframe-level repetition or repetition is used on multiple frequency units.
  • the terminal equipment needs to be able to adopt different rate matching methods, which will increase the complexity of the combined decoding of the terminal equipment.
  • the embodiments of the present invention provide the following three solutions.
  • Method 1 The frequency unit with a larger number of available REs (REs that can be used to map data symbols) in a subframe can be used as a reference, and the frequency unit with a smaller number of REs can puncture the REs in the frequency unit that cannot be used for data symbol transmission.
  • puncture refers to being calculated but not used in the mapping.
  • the number of available REs for frequency unit 0 is larger than that for frequency unit 1.
  • frequency unit 1 Based on frequency unit 0, frequency unit 1 performs data symbol mapping according to the pattern of available REs in frequency unit 0.
  • Figure 7 shows the number of available REs in a subframe. It can be seen that in this way, frequency unit 0 and frequency unit 1 facilitate sub-frame level repetition, and the receiving end can perform RE on frequency unit 0 and frequency unit 1.
  • the parts with the same index are merged and received.
  • a frequency unit with a small number of available REs (REs that can be used to map data symbols) in a subframe can be used as a reference, and different frequency units can perform resource mapping according to this reference.
  • the number of available REs in frequency unit 1 is less than that in frequency unit 0.
  • frequency unit 0 is mapped according to the pattern of available REs in frequency unit 1.
  • the position and number of REs that can be used to transmit data symbols in a frame are the same as the position and number of REs that can be used to transmit data symbols in frequency unit 1 in one subframe. It can be seen that the number of REs actually used for data symbol mapping in frequency unit 0 in the second method is reduced compared to the first method.
  • Figure 8 shows the number of available REs in a subframe. It can be seen that in this way, frequency unit 0 and frequency unit 1 facilitate subframe-level repetition, and the indexes of REs on frequency unit 0 and frequency unit 1 are exactly the same. Therefore, the receiving end can combine and receive the parts with the same RE index on frequency unit 0 and frequency unit 1.
  • Equation 3 To ensure that the subframe-level repetition is completed on one frequency unit, K consecutive subframes used for transmitting the same data symbol may be mapped on the same frequency unit. For example, when sub-frame-level repetition needs to span frequency units, the time-domain frequency hopping interval can be extended to ensure that K consecutive sub-frames used to transmit the same data symbol are mapped on the same frequency unit, so that the receiving end can be in the same frequency unit The same data symbols transmitted in at least two subframes are combined and received. In this case, the network device may notify the terminal of offset information to indicate the extended time-domain frequency hopping interval.
  • the terminal device receives the configuration information of multiple frequency units, and the bandwidth, frequency domain position, and time domain frequency hopping interval of the multiple frequency units can be flexibly configured.
  • the data of the terminal equipment hops among these multiple frequency units, and the frequency diversity gain of frequency hopping can be used to improve the coverage performance, reduce the time domain transmission time, and thereby reduce the inter-cell interference.
  • the deployment mode of multiple frequency units the number of antenna ports of the reference signal on multiple frequency units, multiple frequency units are used for data transmission in a subframe or a time slot or the first time slot of a subframe There is no restriction on the position of the starting symbol, which can increase the flexibility of network deployment. By restricting the resource mapping mode or the time-domain frequency hopping interval, the sub-frame-level repetition complexity and the complexity of terminal equipment combined decoding are reduced.
  • subframe mentioned in the foregoing embodiment may be a valid subframe.
  • the definition of the effective subframe is related to the specific communication system.
  • the effective subframe can be called an NB-IoT DL subframe (NB-IoT DL subframe).
  • NB-IoT DL subframe NB-IoT downlink subframe
  • the terminal device determines that it does not include a narrowband primary synchronization signal (NPSS), or a narrowband secondary synchronization signal (NSSS), or a narrowband physical broadcast channel (NPBCH), or NB
  • NPSS narrowband primary synchronization signal
  • NSSS narrowband secondary synchronization signal
  • NNBCH narrowband physical broadcast channel
  • NB NB
  • the subframes transmitted by the system information block type (systemInformation block type1-NB) are NB-IoT downlink subframes.
  • the terminal device receives configuration parameters, which are used to configure NB-IoT downlink subframes. Furthermore, the terminal device can determine the NB-IoT downlink subframe according to the configuration parameter.
  • the configuration parameters can be configured through system messages or RRC signaling, which is not specifically limited in the embodiment of the present application.
  • the effective subframe may be called a bandwidth-reduced Low-complexity or coverage enhanced (bandwidth-reduced Low-complexity or coverage enhanced, BL/CE) downlink subframe.
  • the BL/CE downlink subframe can be configured through configuration parameters, which are configured through system messages or RRC signaling.
  • each network element such as a terminal device, a network device, etc.
  • each network element includes a hardware structure and/or software module corresponding to each function.
  • this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the method implemented by the network device can also be implemented by a component (such as a chip or circuit) that can be configured in the network device, and the terminal device (the above-mentioned second communication device) )
  • the implementation method can also be implemented by a component (such as a chip or a circuit) configurable in the terminal device.
  • the embodiments of the present application can divide the terminal equipment, network equipment, etc. into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.
  • FIG. 9 shows a schematic diagram of a possible logical structure of the first communication device involved in the foregoing embodiment, and the first communication device 900 is used to perform the foregoing methods
  • the embodiment corresponds to the process of the first communication device.
  • the first communication device 900 includes: a processing module 901 and a transceiver module 902.
  • the transceiver module 902 is configured to support the first communication device 900 to perform the steps of receiving or sending information corresponding to the first communication device in the method embodiment shown in FIG. 4.
  • the processing module 901 is configured to support the first communication device 900 to execute the processing steps corresponding to the first communication device 900 in the foregoing method embodiment shown in FIG.
  • the first communication device 900 may further include a storage module for storing code (program) or data.
  • the processing module 901 can call the code or data of the storage module, so that the first communication device 900 can determine N frequency units, the N frequency units adopt the frequency hopping mode, and among the N frequency units
  • Each frequency unit in includes M carriers or M resource blocks RB or M subcarriers, where N is a positive integer greater than 1, and M is a positive integer.
  • the foregoing processing module 901 may be a processor or a processing circuit.
  • the transceiver module 902 may be a transceiver or a transceiver circuit or an interface circuit.
  • the storage module may be a memory. The above-mentioned processing module, transceiver module and storage module may be integrated or separated.
  • FIG. 10 shows a schematic diagram of a possible logical structure of the second communication device involved in the foregoing embodiment.
  • the second communication device is used to execute the process corresponding to the second communication device in the foregoing method embodiments.
  • the second communication device 1000 includes: a transceiver module 1001 and a processing module 1002.
  • the transceiver module 1001 is configured to support the second communication device 1000 to perform the steps of receiving or sending information corresponding to the second communication device in the method embodiment shown in FIG. 4.
  • the processing module 1002 is configured to support the second communication device to execute the processing steps related to the second communication device in the method embodiment shown in FIG. 4, for example, to implement other functions except the function of the transceiver unit.
  • the second communication device 1000 may further include a storage module for storing code (program) or data.
  • the processing module 1002 may call the code or data of the storage module, so that the second communication device 1000 can determine the frequency domain positions of the N frequency domain units according to the N configuration information, where N is greater than A positive integer of 1.
  • the aforementioned processing module 1002 may be a processor or a processing circuit.
  • the transceiver module 1001 may be a transceiver or a transceiver circuit or an interface circuit.
  • the storage unit may be a memory. The above-mentioned processing module, transceiver module and storage module may be integrated or separated.
  • FIG. 11 shows a schematic diagram of a possible hardware structure of the network device involved in the foregoing embodiment provided by the embodiment of this application.
  • the network device may be the aforementioned first communication device.
  • the network device is used to execute the process corresponding to the first communication device in the foregoing method embodiments.
  • the network device 1100 may include: one or more processors 1101, a memory 1102, a network interface 1103, a transceiver 1105, and an antenna 1108. These components can be connected through a bus 1104 or other ways.
  • FIG. 11 uses a bus connection as an example. among them:
  • the network interface 1103 can be used for the network device 1100 to communicate with other communication devices, such as other network devices.
  • the network interface 1103 may be a wired interface.
  • the transceiver 1105 may be used to transmit and process the signal output by the processor 1101, such as signal modulation.
  • the transceiver 1105 can also be used to receive and process mobile communication signals received by the antenna 1108. For example, signal demodulation.
  • the transceiver 1105 can be regarded as a wireless modem. In the network device 1100, the number of the transceiver 1105 may be one or more.
  • the antenna 1108 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in a free space, or convert electromagnetic waves in a free space into electromagnetic energy in a transmission line.
  • the memory 1102 may be coupled with the processor 1101 through a bus 1104 or an input/output port, and the memory 1102 may also be integrated with the processor 1101.
  • the memory 1102 is used to store various software programs and/or multiple sets of instructions or data.
  • the memory 1102 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 1102 can store an operating system (hereinafter referred to as system), such as embedded operating systems such as uCOS, VxWorks, and RTLinux.
  • system operating system
  • the memory 1102 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the processor 1101 may be a central processing unit, a general-purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules and circuits described in conjunction with the disclosure of this application.
  • the processor may also be a combination that implements certain functions, for example, a combination of one or more microprocessors, a combination of a digital signal processor and a microprocessor, and so on.
  • the processor 1101 may be used to read and execute computer-readable instructions. Specifically, the processor 1101 may be used to call a program stored in the memory 1102, for example, a program for implementing the information transmission method provided by one or more embodiments of the present application on the network device 1100 side, and execute instructions contained in the program.
  • the network device 1100 may be the network device 111 in the wireless communication system 110 shown in FIG. 2, and may be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), and an extended service set (ESS). , NodeB, eNodeB, gNB, etc.
  • the network device 1100 shown in FIG. 11 is only an implementation manner of the embodiment of the present application. In actual applications, the network device 1100 may also include more or fewer components, which is not limited here. For the specific implementation of the network device 1100, reference may be made to related descriptions in the foregoing method embodiments, and details are not described herein again.
  • the terminal device 120 may include: an input and output module (for example, an audio input and output module 125, a key input module 126, a display 127, etc.), a user interface 128, one or more processors 121, a transceiver 122, an antenna 123 and memory 124. These components can be connected via a bus or in other ways.
  • Fig. 12 uses a bus connection as an example. among them:
  • the antenna 123 can be used to convert electromagnetic energy into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in transmission lines.
  • the transceiver 122 can be used to transmit and process the signal output by the processor 121, and can also be used to receive and process the mobile communication signal received by the antenna 123.
  • the transceiver 122 can be regarded as a wireless modem.
  • the number of the transceiver 122 may be one or more.
  • the terminal device 120 may also include other communication components, such as a GPS module, a Bluetooth (Bluetooth) module, and a wireless fidelity (Wi-Fi) module. Not limited to the above-mentioned wireless communication signals, the terminal device 120 may also support other wireless communication signals, such as satellite signals, shortwave signals, and so on. Not limited to wireless communication, the terminal device 120 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • a wired network interface such as a LAN interface
  • the input and output module can be used to realize the interaction between the terminal device 120 and the user/external environment, and can mainly include an audio input and output module 125, a key input module 126, a display 127, and so on.
  • the input and output modules may also include: cameras, touch screens, sensors, and so on. Among them, the input and output modules all communicate with the processor 121 through the user interface 128.
  • the memory 124 may be coupled with the processor 121 through a bus or an input/output port, and the memory 124 may also be integrated with the processor 121.
  • the memory 124 is used to store various software programs and/or multiple sets of instructions.
  • the memory 124 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid-state storage devices.
  • the memory 124 may store an operating system (hereinafter referred to as system), such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 124 may also store a network communication program, which may be used to communicate with one or more additional devices, one or more terminal devices, and one or more network devices.
  • the memory 124 can also store a user interface program, which can vividly display the content of the application program through a graphical operation interface, and receive user control operations on the application program through input controls such as menus, dialog boxes, and keys. .
  • the memory 124 may be used to store the implementation program of the information transmission method provided by one or more embodiments of the present application on the terminal device 120 side.
  • the implementation of the information transmission method provided by one or more embodiments of this application please refer to the foregoing embodiments.
  • the processor 121 may be used to read and execute computer-readable instructions. Specifically, the processor 121 may be used to call a program stored in the memory 124, such as an implementation program of the information transmission method provided by one or more embodiments of the present application on the terminal device 120 side, and execute the instructions contained in the program to implement The information transmission method involved in the previous embodiment.
  • the processor 121 can support: global system for mobile communication (GSM) (2G) communication, wideband code division multiple access (WCDMA) (3G) communication, and long term evolution (long term evolution) , LTE) (4G) communication, and one or more of 5G communication, etc.
  • GSM global system for mobile communication
  • WCDMA wideband code division multiple access
  • LTE long term evolution
  • the processor 121 when the processor 121 receives any message or data, it specifically receives it by driving or controlling the transceiver 122. Therefore, the processor 121 can be regarded as a control center that performs transmission or reception, and the transceiver 122 is a specific performer of transmission and reception operations.
  • the terminal device 120 may be the terminal device 102 in the wireless communication system 100 shown in FIG. 2, and may be implemented as an eMTC device, a mobile device, a mobile station, a mobile unit, and a wireless unit. Remote units, user agents, mobile clients, etc.
  • the terminal device 120 shown in FIG. 12 is only an implementation manner of the embodiment of the present application. In practical applications, the terminal device 120 may also include more or fewer components, which is not limited here. For the specific implementation of the terminal device 120, reference may be made to the relevant descriptions in the foregoing method embodiments, which will not be repeated here.
  • FIG. 13 shows a schematic structural diagram of a communication chip provided by the present application.
  • the communication chip 1300 may include a processor 1301, and one or more interfaces 1302 coupled to the processor 1301.
  • the processor 1301 may be used to read and execute computer-readable instructions.
  • the processor 1301 may mainly include a controller, an arithmetic unit, and a register.
  • the controller is mainly responsible for instruction decoding, and sends control signals for operations corresponding to the instructions.
  • the arithmetic unit is mainly responsible for performing fixed-point or floating-point arithmetic operations, shift operations and logical operations, etc., and can also perform address operations and conversions.
  • the register is mainly responsible for storing the register operands and intermediate operation results temporarily stored during the execution of the instruction.
  • the hardware architecture of the processor 1301 can be an application specific integrated circuit (ASIC) architecture, a microprocessor without interlocked pipeline stage architecture (microprocessor without interlocked stages architecture, MIPS) architecture, and advanced streamlining. Instruction set machine (advanced RISC machines, ARM) architecture or NP architecture, etc.
  • the processor 1301 may be single-core or multi-core.
  • the interface 1302 can be used to input data to be processed to the processor 1301, and can output the processing result of the processor 1301 to the outside.
  • the interface 1302 can be a general purpose input output (GPIO) interface, which can be connected to multiple peripheral devices (such as a display (LCD), a camera (camara), a radio frequency (RF) module, etc.) connection.
  • GPIO general purpose input output
  • the interface 1302 is connected to the processor 1301 through the bus 1303.
  • the processor 1301 can be used to call the implementation program or data on the network device or terminal device side of the information transmission method provided by one or more embodiments of the present application from the memory, so that the chip can implement the foregoing Figure 4 shows the information transmission method.
  • the memory may be integrated with the processor 1301, or may be coupled to the communication chip 130 through the interface 1302, that is to say, the memory may be a part of the communication chip 130 or may be independent of the communication chip 130.
  • the interface 1302 can be used to output the execution result of the processor 1301. In this application, the interface 1302 may be specifically used to output the decoding result of the processor 1301.
  • processor 1301 and the interface 1302 may be implemented through hardware design, or through software design, or through a combination of software and hardware, which is not limited here.
  • a computer storage medium is also provided, and computer execution instructions are stored in the computer storage medium.
  • a device may be a single-chip microcomputer, a chip, etc.
  • the storage medium can be stored in a readable storage medium.
  • the computer executes the instructions so that the device or processor executes the steps of the terminal device or network device in the information transmission method provided in FIG. 4.
  • the foregoing computer storage media may include: U disk, mobile hard disk, read-only memory, random access memory, magnetic disk or optical disk and other media that can store program codes.
  • a computer program product in another embodiment of the present application, includes computer-executable instructions stored in a computer-readable storage medium; at least one processor of the device can be accessed from a computer The reading storage medium reads the computer-executable instruction, and at least one processor executes the computer-executable instruction to make the device implement the steps of the terminal device or the network device in the information transmission method provided in FIG. 4.
  • a communication system in another embodiment, includes a plurality of devices, and the plurality of devices includes a terminal device and a network device.
  • the network device may be the first communication device shown in FIG. 9 or the network device provided in FIG. 11, and is used to execute the steps corresponding to the first communication device in the information transmission method provided in FIG. 4.
  • the terminal device may be the second communication device shown in FIG. 10 or the terminal device provided in FIG. 12, and is used to execute the steps corresponding to the second communication device in the information transmission method provided in FIG.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices.
  • Computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions can be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means to transmit to another website, computer, server or data center.
  • a 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 data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

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

Abstract

La présente invention concerne un procédé de transmission d'informations, un dispositif associé, et un système. Le procédé consiste : à déterminer, par un premier dispositif de communication, N unités de fréquence, les N unités de fréquence utilisant un mode de saut de fréquence, chacune des N unités de fréquence comprenant M porteuses ou M blocs de ressources (RB) ou M sous-porteuses, N étant un nombre entier positif supérieur à 1, et M étant un nombre entier positif ; à transmettre, par le premier dispositif de communication, N éléments d'informations de configuration à un second dispositif de communication, les N éléments d'informations de configuration ayant une correspondance biunivoque avec les N unités de fréquence, et les N éléments d'informations de configuration comprenant respectivement les informations d'emplacement de domaine de fréquence des unités de fréquence correspondant aux N éléments d'informations de configuration ; la transmission de données, par le premier dispositif de communication, au second dispositif de communication sur N unités de domaine de fréquence. En mettant en œuvre les modes de réalisation de la présente invention, une réduction de la durée de transmission en liaison descendante peut être effectuée, ce qui permet de réduire les interférences intercellulaires.
PCT/CN2019/088477 2019-05-27 2019-05-27 Procédé de transmission d'informations, dispositif associé, et système WO2020237451A1 (fr)

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CN201980096038.4A CN113785644B (zh) 2019-05-27 2019-05-27 一种信息传输方法、相关设备及系统

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WO2024073876A1 (fr) * 2022-10-07 2024-04-11 Qualcomm Incorporated Signal de référence de positionnement à faible puissance pour récepteur de faible puissance

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