WO2020237451A1 - 一种信息传输方法、相关设备及系统 - Google Patents
一种信息传输方法、相关设备及系统 Download PDFInfo
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- 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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- 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
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- 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
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- 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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Abstract
本申请公开了一种信息传输方法、相关设备及系统,其中该方法包括:第一通信设备确定N个频率单元,所述N个频率单元采用跳频模式,所述N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;所述第一通信设备向第二通信设备发送N个配置信息,所述N个配置信息与所述N个频率单元一一对应,所述N个配置信息分别包括与其对应的频率单元的频域位置信息;所述第一通信设备在所述N个频域单元上向所述第二通信设备发送数据。实施本发明实施例,可以减少下行传输的时长进而降低小区间干扰。
Description
本发明涉及通信技术领域,尤其涉及一种信息传输方法、相关设备及系统。
物联网(internet of things,IoT)是“物物相连的互联网”。它将互联网的用户端扩展到了任何物品与物品之间,进行信息交换和通信。这样的通信方式也称为机器间通信(machine type communication,MTC),通信的节点称为MTC终端。典型的物联网应用包括智能电网、智能农业、智能交通、智能家居以及环境检测等各个方面。由于物联网需要应用在多种场景中比如从室外到室内,从地上到地下,因而对物联网的设计提出了很多特殊的要求。
许多MTC应用在覆盖较差的环境下,比如电表水表等通常安装在室内甚至地下室等无线网络信号很差的地方,因此需要覆盖增强技术来解决。窄带物联网(narrow band internet of thing,NB-IoT)系统目前下行针对覆盖增强的主要技术方案是重复。通过重复传输,接收侧做合并提升信噪比。下行除了窄带物理下行控制信道(narrowband physical downlink control channel,NPDCCH)可以支持频分复用(frequency division multiplexing,FDM),窄带物理下行共享信道(narrowband physical downlink shared channel,NPDSCH)只支持时分复用(time division multiplexing,TDM)。
NB-IoT系统带宽为180kHz,NPDSCH传输占用的带宽为180kHz,NPDCCH传输占用的带宽为90kHz或者180kHz。如图1中NPDCCH和NPDSCH之间的带箭头的曲线示意调度,表示箭头指向的NPDSCH是由无箭头一端的NPDCCH调度的。从图1可以看出,不同用户之间的NPDCCH或者NPDSCH,或者同一个用户的NPDCCH和NPDSCH之间是TDM的。如图1所示UE1的NPDCCH和UE1的NPDSCH之间是TDM的,UE1的NPDCCH和UE2的NPDCCH之间是TDM的,UE1的NPDSCH和UE2的NPDSCH之间是TDM的。
现有技术中,NPDSCH只支持TDM,对于同频组网,下行传输需要大量重复或者占用较长时间时,小区间干扰会比较严重。因此,如何减少下行传输的时长进而降低小区间干扰是目前需要解决的技术问题。
发明内容
本发明实施例提供了一种信息传输方法、相关设备及系统,可以减少下行传输的时长进而降低小区间干扰。
第一方面,本发明实施例提供了一种信息传输方法,应用于第一通信设备侧。该方法包括:第一通信设备确定N个频率单元,该N个频率单元采用跳频模式,其中每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数。之后,第一通信设备向第二通信设备发送N个配置信息,该N个配置信息与N个频率单元一一对应,该N个配置信息分别包括与其对应的频率单元的频域位置信息。之后,第一通信设备在N个频域单元上向第二通信设备发送数据。
实施本发明实施例,网络设备向终端设备发送多个频率单元的配置信息,多个频率单元的带宽、频域位置、时域跳频间隔均可以灵活配置,不局限于窄带跳频。网络设备发送给终端设备的数据在这多个频率单元之间跳频,可以利用跳频的频率分集增益提升覆盖性能,减少时域传输时长,从而降低小区间干扰。
在一种可能的设计中,上述N个频率单元满足以下至少一项:部署模式相同;参考信号的天线端口数相同;一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同。其中,部署模式包括独立部署模式、保护带部署模式或带内部署模式。实施本发明实施例,多个频率单元之间约束满足以下至少一项:采用相同部署模式,参考信号的天线端口数相同,一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同,可以保证不同频率单元上可用于数据符号资源映射的RE数相同,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,进而减少终端设备进行合并译码的复杂度。
在一种可能的设计中,第一频率单元在一个子帧内可用于传输数据符号的资源单元(resource element,RE)数大于或等于第二频率单元在一个子帧内可用于传输数据符号的RE数,则第二频率单元在一个子帧内可用于传输数据符号的RE以第一频率单元在一个子帧内可用于传输数据符号的RE为基准进行数据符号的映射,其中第二频率单元在一个子帧内不可用于传输数据符号的RE参与计数但不用于数据符号的映射。实施本发明实施例,对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,降低了终端设备合并译码的复杂度。
在一种可能的设计中,第一频率单元在一个子帧内可用于传输数据符号的RE数小于或等于第二频率单元在一个子帧内可用于传输数据符号的RE数,则第一频率单元在一个子帧内可用于传输数据符号的RE的位置及数量和第二频率单元在一个子帧内可用于传输数据符号的RE的位置及数量相同。实施本发明实施例,对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,降低了终端设备合并译码的复杂度。
在一种可能的设计中,用于传输相同数据符号的连续K个子帧位于同一频率单元,K为正整数。实施本发明实施例,对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,降低了终端设备合并译码的复杂度。
在一种可能的设计中,上述方法还包括:第一通信设备向第二通信设备发送指示信息,该指示信息用于指示N个频率单元的时域跳频间隔。
在一种可能的设计中,上述方法还包括:第一通信设备向第二通信设备发送指示信息,该指示信息用于指示N个频率单元中每个频率单元的时域跳频间隔。
在一种可能的设计中,上述N个频率单元中的任意两个频率单元在频域上不相邻。实施本发明实施例,可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述N个频率单元中的任意两个频率单元在频域上相邻。实施本发明实施例,可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述时域跳频间隔为子帧的整数倍或时隙的整数倍或符号的整数倍。实施本发明实施例,可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述N个频率单元中不同的频率单元的时域跳频间隔相同或不同。可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述N个频率单元中不同的频率单元的带宽相同或不同。实施本发明实施例,可以增加跳频方式配置的灵活性,同时可以增加与其它通信系统的兼容性,减少保护带宽,提升频谱资源利用率。
在一种可能的设计中,上述N个频率单元中不同的频率单元的子载波间隔相同或不同。实施本发明实施例,可以增加跳频方式配置的灵活性,同时可以增加与其它通信系统的兼容性,减少保护带宽,提升频谱资源利用率。
在一种可能的设计中,上述第一通信设备为网络设备,第二通信设备为终端设备。
第二方面,本发明实施例提供了一种信息传输方法,应用于第二通信设备侧。该方法包括:第二通信设备接收第一通信设备发送的N个配置信息,该N个配置信息与N个频率单元一一对应,N个配置信息分别包括与其对应的频率单元的频域位置信息,N个频率单元采用跳频模式,N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数。第二通信设备根据N个配置信息确定N个频域单元的频域位置,之后,第二通信设备从N个频率单元接收第一通信设备发送的数据。
实施本发明实施例,终端设备接收到多个频率单元的配置信息,多个频率单元的带宽、频域位置、时域跳频间隔均可以灵活配置,不局限于窄带跳频。终端设备的数据在这多个频率单元之间跳频,可以利用跳频的频率分集增益提升覆盖性能,减少时域传输时长,从而降低小区间干扰。
在一种可能的设计中,上述N个频率单元满足以下至少一项:部署模式相同;参考信号的天线端口数相同;一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同。其中,部署模式包括独立部署模式、保护带部署模式或带内部署模式。实施本发明实施例,多个频率单元之间约束满足以下至少一项:采用相同部署模式,参考信号的天线端口数相同,一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同,可以保证不同频率单元上可用于数据符号资源映射的RE数相同,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,进而减少终端设备进行合并译码的复杂度。
在一种可能的设计中,第一频率单元在一个子帧内可用于传输数据符号的RE数大于或等于第二频率单元在一个子帧内可用于传输数据符号的RE数,则第二频率单元在一个子帧内可用于传输数据符号的RE以第一频率单元在一个子帧内可用于传输数据符号的RE为基准进行数据符号的映射,其中第二频率单元在一个子帧内不可用于传输数据符号的RE参与计数但不用于数据符号的映射。实施本发明实施例,对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,降低了终端设备合并译码的复杂度。
在一种可能的设计中,第一频率单元在一个子帧内可用于传输数据符号的RE数小于或等于第二频率单元在一个子帧内可用于传输数据符号的RE数,则第一频率单元在一个子帧内可用于传输数据符号的RE的位置及数量和第二频率单元在一个子帧内可用于传输数据符号的RE的位置及数量相同。实施本发明实施例,对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,降低了终端设备合并译码的复杂度。
在一种可能的设计中,用于传输相同数据符号的连续K个子帧位于同一频率单元,K为正整数。实施本发明实施例,对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,降低了终端设备合并译码的复杂度。
在一种可能的设计中,上述方法还包括:第二通信设备接收第一通信设备发送的指示信息,该指示信息用于指示N个频率单元的时域跳频间隔。
在一种可能的设计中,上述方法还包括:第二通信设备接收第一通信设备发送的指示信息,该指示信息用于指示N个频率单元中每个频率单元的时域跳频间隔。
在一种可能的设计中,上述N个频率单元中的任意两个频率单元在频域上不相邻。实施本发明实施例,可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述N个频率单元中的任意两个频率单元在频域上相邻。实施本发明实施例,可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述时域跳频间隔为子帧的整数倍或时隙的整数倍或符号的整数倍。实施本发明实施例,可以增加跳频方式配置的灵活性。
在一种可能的设计中,上述N个频率单元中不同的频率单元的时域跳频间隔相同或不同。实施本发明实施例,可以实现跳频方式配置更加灵活。
在一种可能的设计中,上述N个频率单元中不同的频率单元的带宽相同或不同。实施本发明实施例,可以增加跳频方式配置的灵活性,同时可以增加与其它通信系统的兼容性,减少保护带宽,提升频谱资源利用率。
在一种可能的设计中,上述N个频率单元中不同的频率单元的子载波间隔相同或不同。实施本发明实施例,可以增加跳频方式配置的灵活性,同时可以增加与其它通信系统的兼容性,减少保护带宽,提升频谱资源利用率。
在一种可能的设计中,上述第一通信设备为网络设备,第二通信设备为终端设备。
第三方面,本发明实施例提供了一种通信设备,该通信设备为第一通信设备,第一通信设备可包括多个功能模块或单元,用于相应的执行第一方面所提供的信息传输方法,或者第一方面可能的实施方式中的任意一种所提供的信息传输方法。
例如,第一通信设备包括:处理模块和收发模块。
其中,处理模块,用于确定N个频率单元,N个频率单元采用跳频模式,N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;
收发模块,用于向第二通信设备发送N个配置信息,N个配置信息与N个频率单元一一对应,N个配置信息分别包括与其对应的频率单元的频域位置信息;
收发模块,还用于在N个频域单元上向第二通信设备发送数据。
可选的,收发模块还用于:向第二通信设备发送指示信息,指示信息用于指示N个频率单元的时域跳频间隔。
可选的,收发模块还用于:向第二通信设备发送指示信息,指示信息用于指示N个频率单元中每个频率单元的时域跳频间隔。
第四方面,本发明实施例提供了另一种通信设备,该通信设备为第二通信设备,第二通信设备可包括多个功能模块或单元,用于相应的执行第二方面所提供的信息传输方法,或者第二方面可能的实施方式中的任意一种所提供的信息传输方法。
例如,第二通信设备包括:收发模块和处理模块。
其中,收发模块,用于接收第一通信设备发送的N个配置信息,N个配置信息与N个频率单元一一对应,N个配置信息分别包括与其对应的频率单元的频域位置信息,N个频率单元采用跳频模式,N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;
处理模块,用于根据N个配置信息确定N个频域单元的频域位置;
收发模块,还用于从N个频率单元接收第一通信设备发送的数据。
可选的,收发模块还用于:接收第一通信设备发送的指示信息,指示信息用于指示N个频率单元的时域跳频间隔。
可选的,收发模块还用于:接收第一通信设备发送的指示信息,指示信息用于指示N个频率单元中每个频率单元的时域跳频间隔。
第五方面,本发明实施例提供了一种通信设备,该用于执行第一方面描述的信息传输方法。该通信设备为第一通信设备,第一通信设备可包括:存储器以及与所述存储器耦合的处理器、发射器、接收器。其中,所述发射器用于支持第一通信设备执行第一方面所提 供的信息传输方法中第一通信设备发送信息的步骤。所述接收器用于支持第一通信设备执行第一方面所提供的信息传输方法中第一通信设备接收信息的步骤。其中,发射器和接收器可以集成为一收发器。处理器用于支持第一通信设备执行第一方面所提供的信息传输方法中第一通信设备除发送信息以及接收信息以外的其他处理步骤。需要说明的是,本发明实施例中的发射器和接收器可以集成在一起,也可以通过耦合器耦合。所述存储器用于存储第一方面描述的信息传输方法的实现代码,所述处理器用于执行所述存储器中存储的程序代码,即执行第一方面所提供的信息传输方法,或者第一方面可能的实施方式中的任意一种所提供的信息传输方法。
第六方面,本发明实施例提供了另一种通信设备,该用于执行第二方面描述的信息传输方法。该通信设备为第二通信设备,第二通信设备可包括:存储器以及与所述存储器耦合的处理器、发射器、接收器。其中,所述发射器用于支持第二通信设备执行第二方面所提供的信息传输方法中第二通信设备发送信息的步骤。所述接收器用于支持第二通信设备执行第二方面所提供的信息传输方法中第二通信设备接收信息的步骤。其中,发射器和接收器可以集成为一收发器。处理器用于支持第二通信设备执行第二方面所提供的信息传输方法中第二通信设备除发送信息以及接收信息以外的其他处理步骤。需要说明的是,本发明实施例中的发射器和接收器可以集成在一起,也可以通过耦合器耦合。所述存储器用于存储第二方面描述的信息传输方法的实现代码,所述处理器用于执行所述存储器中存储的程序代码,即执行第二方面所提供的信息传输方法,或者第二方面可能的实施方式中的任意一种所提供的信息传输方法。存储器和处理器可以集成在一起,也可以通过耦合器耦合。
第七方面,本发明实施例提供了一种通信系统,包括第一通信设备和第二通信设备。其中,所述第一通信设备可以是如前述第三方面或第五方面所描述的第一通信设备,所述第二通信设备可以是如前述第四方面或第六方面所描述的第二通信设备。
第八方面,本发明实施例提供了一种计算机可读存储介质,所述可读存储介质上存储有指令,当其在计算机上运行时,使得计算机执行上述任一方面描述的信息传输方法。
第九方面,本发明实施例提供了另一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机执行上述任一方面描述的信息传输方法。
第十方面,本发明实施例提供了一种通信芯片,该通信芯片可包括:处理器,以及耦合于所述处理器的一个或多个接口。其中,所述处理器可用于从存储器中调用上述任一方面所提供的信息传输方法,并执行该程序包含的指令。所述接口可用于输出所述处理器的处理结果。
为了更清楚地说明本申请实施例或背景技术中的技术方案,下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1是一种数据传输示意图;
图2是本发明实施例提供的一种无线通信系统示意图;
图3是本发明实施例提供的三种部署模式的资源映射图样;
图4是本发明实施例提供的一种信息传输方法的流程示意图;
图5是本发明实施例提供的一种跳频模式的示意图;
图6是本发明实施例提供的另一种跳频模式的示意图;
图7是本发明实施例提供的一种资源映射图样;
图8是本发明实施例提供的另一种资源映射图样;
图9是本发明实施例提供的一种第一通信设备的逻辑结构示意图;
图10是本发明实施例提供的一种第二通信设备的逻辑结构示意图;
图11是本发明实施例提供的一种网络设备的硬件结构示意图;
图12是本发明实施例提供的一种终端设备的硬件结构示意图;
图13是本发明实施例提供的一种通信芯片的结构示意图。
本申请的实施方式部分使用的术语仅用于对本申请的具体实施例进行解释,而非旨在限定本申请。
首先对本申请涉及的通信系统进行介绍。参考图2,图2示出了本发明实施例涉及的无线通信系统。无线通信系统100可以工作在授权频段,也可以工作在非授权频段。无线通信系统100不限于长期演进(long term evolution,LTE)系统,还可以是未来演进的5G系统、新无线技术(new radio,NR)系统等。可以理解的,非授权频段的使用可以提高无线通信系统100的系统容量。如图2所示,无线通信系统100包括:一个或多个网络设备101,一个或多个终端设备102。其中:
网络设备101可以通过一个或多个天线来和终端设备102进行无线通信103。各个网络设备101均可以为各自对应的覆盖范围104提供通信覆盖。网络设备101对应的覆盖范围104可以被划分为多个扇区(sector),其中,一个扇区对应一部分覆盖范围(未示出)。
在本申请实施例中,网络设备101可以包括:演进的节点B(evolved NodeB,eNB或者eNodeB),或下一代节点(next-generation Node B,gNB)等等。无线通信系统100可以包括几种不同类型的网络设备101,例如宏基站(macro base station)、微基站(micro base station)等。网络设备101可以应用不同的无线技术,例如小区无线接入技术,或者WLAN无线接入技术。
在本申请实施例中,终端设备102是一种具有无线收发功能的设备,可以部署在陆地上,包括室内或室外、手持、穿戴或车载;也可以部署在水面上(如轮船等);还可以部署在空中(例如飞机、气球上等)。终端设备102可以是机器类通信(machine type communication,eMTC)终端、手机(mobile phone)、平板电脑(Pad)、便携电脑、带无线收发功能的电脑、虚拟现实(virtual reality,VR)终端设备、增强现实(augmented reality,AR)终端设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智能汽车、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。终端设备有时也可以称为用户设备(user equipment,UE)、终端(terminal)、接入终端、UE单元、UE站、移动设备、移动站、移动台(mobile station)、移动终端、移动客户端、移动单元 (mobile unit)、远方站、远程终端设备、远程单元、无线单元、无线通信设备、用户代理或用户装置等。
例如,终端设备102可以是NB-IoT终端,或者增强型机器类通信(enhanced machine type communication,eMTC)终端。为了节省功耗,降低成本,eMTC终端的工作带宽通常可能较小,小于LTE系统的工作带宽。例如eMTC终端的工作带宽可以是一个窄带NB,一个NB包括6个连续的物理资源块(physical resource block,PRB),一个物理资源块PRB包括12个子载波(Subcarrier,SC)。终端设备102也可以包括智能家居设备,还可以包括手机等移动终端。
终端设备102除了可以与网络设备101进行通信以外,还可以与其他终端设备进行通信。例如手机可以与智能家居设备进行通信,MTC设备可以与另一MTC设备进行通信等。
本申请中,无线通信系统100还可以是IoT系统、NB-IoT系统、MTC系统、eMTC系统,及其他演化系统(例如演进的增强型机器类通信(Further eMTC,FeMTC)、演进的增强型机器类通信(Even Further eMTC,eFeMTC)或附加机器类通信(additional MTC,AMTC)等)。
本申请实施例中,网络设备101可以向终端设备102发送参考信号(reference signal,RS)。其中,RS可以包括但不限于:小区特定参考信号(cell-specific reference signal,CRS)或信道状态信息参考信号(channel state information reference signal,CSI-RS)。
示例性的,下述各个实施例中所提及的第一通信设备可以为图2所示实施例中的网络设备101,第二通信设备可以为图2所示实施例中的终端设备102。
需要说明的是,本申请实施例中的术语“系统”和“网络”可被互换使用。“多个”是指两个或两个以上,鉴于此,本申请实施例中也可以将“多个”理解为“至少两个”。“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这三种情况。另外,字符“/”,如无特殊说明,一般表示前后关联对象是一种“或”的关系。
下面对本申请中涉及的载波、RB、子载波的概念进行说明。载波是指频域上一段连续的资源。示例地,载波的带宽可以为180kHz、200kHz、360kHz、720kHz、1.4MHz、3MHz、5MHz、10MHz、15MHz、20MHz、25MHz、30MHz、40MHz、50MHz、60MHz、80MHz、100MHz、200MHz或者400MHz。在LTE中,一个RB包括时域上一个子帧(例如14个符号(symbol)),频域上12个子载波(Subcarrier,SC)。在NR中,一个RB包括12个子载波。例如,一个子载波的带宽为15kHz,则一个RB的带宽为180kHz,或者,一个子载波的带宽为30kHz,则一个RB的带宽为360kHz。
下面对本申请中涉及的部署模式进行说明。
以NB-IoT系统为例,NB-IoT支持独立部署(standalone operation)、保护带部署(guardband operation)、带内部署(in-band operation)三种部署模式工作。其中,
独立部署:利用独立的频带,比如利用GSM网络一个或者多个载波,来传输NB-IoT。
保护带部署:利用E-UTRA载波保护带中未利用的一个或多个资源块来传输NB-IoT,其中一个资源块的带宽为180kHz。
带内部署:利用一个正常的E-UTRA载波内的一个或多个资源块来传输NB-IoT,其中一个资源块的带宽为180kHz。
结合图3来描述三种部署模式的资源映射图样。参见图3,为一个RB(以时域上14个symbol,频域上12个子载波示意)内三种部署模式参考信号的资源位置示意图,图3中的一个白色小方格表示可用于数据符号映射的资源单元(resource element,RE),或称可用于资源映射的RE。对于独立部署和保护带部署模式,在图3的左边示例中,时域上一个子帧,频域上一个RB内可用于数据符号映射的RE数为12*14-8*2=152个。对于带内部署模式,在图3的右边示例中,时域上一个子帧,频域上一个RB内可用于数据符号映射的RE数最多为12*14-3*12-4*4-8*2=100个。
需要说明的是,上述三种部署模式只是一个示例。保护带部署可以是利用已有通信系统的保护带中未利用的频率资源,带内部署可以是利用已有通信系统载波内的频率资源,比如占用已有通信系统中部分传输带宽的资源。这里的已有系统可以是NR或者LTE或者或者UMTS或者GSM。
NB-IoT系统目前下行针对覆盖增强的主要技术方案是重复。下行除了NPDCCH可以支持FDM,NPDSCH只支持TDM。对于同频组网,或者下行传输需要大量重复或者占用较长时间时,小区间干扰会比较严重。本申请主要提出一种跳频方案,通过频率分集可以提升覆盖性能,减少下行传输的时长,同时针对跳频发生在不同部署模式的载波上时,提出一种资源映射方法,降低终端设备合并译码的复杂度。
基于前述无线通信系统100,本发明实施例提供了一种信息传输方法。参见图4,该信息传输方法包括但不限于如下步骤:
S401:第一通信设备确定N个频率单元,N个频率单元采用跳频模式,频率单元包括M个载波或M个资源块RB或M个子载波,N为大于1的正整数,M为正整数。
S402:第一通信设备向第二通信设备发送N个配置信息,第二通信设备接收第一通信设备发送的N个配置信息,N个配置信息与N个频率单元一一对应,N个配置信息分别包括与其对应的频率单元的频域位置信息。
S403:第二通信设备根据上述N个配置信息确定N个频域单元的频域位置。
S404:第一通信设备在上述N个频率单元上向第二通信设备发送数据,第二通信设备从该N个频率单元接收第一通信设备发送的数据。
其中,例如,N可以为2或者3或者4或者5或者6等大于等于2的正整数。
其中,这里的数据为泛指,包括业务数据和/或信令。信令可以是下行控制信令或上行控制信令。例如,该数据可以包括PDSCH、PDCCH、NPDSCH、NPDCCH等。
本发明实施例中,第一通信设备可以是网络设备(例如基站),第二通信设备可以是终端(例如MTC终端)。
需要说明的是,上述N个频率单元用于向第二通信设备传输数据符号。针对不同的终端,N的数量可以相同,也可以不相同。例如,对于UE1,用于映射数据符号的频率单元的数量为2,而对于UE2,用于映射数据符号的频率单元的数量为3。
可选的,每个频率单元包括连续的一个或多个载波,或者包括连续的一个或多个 (resource block,RB),或者包括连续的一个或多个子载波(Subcarrier),或者包括连续的一个或多个窄带(narrow band,NB),或者包括连续的一个或多个子带(Subband)。例如参见图5所示,频率单元0和频率单元1的带宽均为1个RB,UE1的PDSCH在频率单元0和频率单元1上进行跳频,且跳频顺序为:频率单元0、频率单元1。UE2的PDSCH也在频率单元0和频率单元1上进行跳频,且跳频顺序为:频率单元1、频率单元0。
关于频域跳频图案,从起始跳频的频率单元开始,后续如何跳频可以是按照预设顺序,比如可以约定从起始跳频的频率单元开始,按照配置的频率单元索引顺序进行跳频,也可以是按照上述配置信息中配置的顺序进行跳频。例如,上述配置信息除了包括与其对应的频率单元的频域位置信息以外,还需要包括频域跳频顺序,以指示上述N个频率单元的跳频顺序,如图5所示,网络设备发送给UE1两个配置信息,其中一个配置信息包括频率单元0的频域位置信息,另一个配置信息包括频率单元1的频域位置信息,此外,这两个配置信息中的一个或两个配置信息中还包括UE1的跳频顺序,且跳频顺序为:频率单元0、频率单元1。网络设备发送给UE2两个配置信息,其中一个配置信息包括频率单元0的频域位置信息,另一个配置信息包括频率单元1的频域位置信息,此外,这两个配置信息中的一个或两个配置信息中还包括UE2的跳频顺序,且跳频顺序为:频率单元1、频率单元0。
可选的,上述N个频率单元中不同的频率单元的带宽可以相同,也可以不同,本申请对此不进行限定。如图5所示,以各个频率单元的带宽相同为例,频率单元0和频率单元1均包括1个RB,且带宽均为180kHz。或者,频率单元0和频率单元1均包括1个RB,且频率单元0的带宽为180kHz,频率单元1的带宽为360kHz。
可选的,上述N个频率单元中不同的频率单元的子载波间隔可以相同,也可以不同,本申请对此不进行限定。如图5所示,以各个频率单元的子载波间隔相同为例,频率单元0和频率单元1均包括1个RB,且子载波间隔均为15kHz。或者,频率单元0和频率单元1均包括1个RB,且频率单元0的子载波间隔为15kHz,频率单元1的子载波间隔为30kHz。
可选的,上述N个频率单元占用不连续的频域资源,也即是说,上述N个频率单元在频域上各不相邻,即N个频率单元中的任意两个频率单元在频域上都不相邻。N个频率单元中的任意两个频率单元在频域上可以间隔若干个子载波,或者若干个RB,或者若干个载波。例如图5中,频率单元0和频率单元1在频域上不相邻,且频率单元0和频率单元1间隔1个RB。
可选的,上述N个频率单元占用连续的频域资源,也即是说,上述N个频率单元在频域上相邻。例如图5中,频率单元0和频率单元1在频域上相邻。当然,上述N个频率单元在频域上也可以是部分相邻,部分不相邻,本申请对此不限定。
可选的,第一通信设备还可以向第二通信设备发送指示信息,该指示信息用于指示上述N个频率单元的时域跳频间隔。时域跳频间隔的含义可以为时域上不发生跳频的时长,也可以为时域上相邻的两次跳频之间间隔的时长。例如,可以只配置一个公共的时域跳频间隔,N个频率单元的时域跳频间隔都等于该公共的时域跳频间隔。该指示信息和上述N个配置信息可以通过同一个消息发送给终端,也可以通过不同的消息分别发送给终端。例如,可以承载在系统消息(system information block,SIB)、无线资源控制(radio resource control,RRC)消息、媒体接入控制控制单元(media access control control element,MAC CE)消息或者下行控制信息(downlink control information,DCI)中。例如,该指示信息和上述N个配置信息通过系统消息或RRC消息一并发送给UE,也可以通过系统消息或RRC消息将上述N个配置信息发送给UE,再通过DCI将指示信息发送给UE。当然,还可以在协议中预先定义时域跳频间隔,则无需网络设备向终端发送上述N个频率单元的时域跳频间隔,节省信令开销。这种情况,各个频率单元的时域跳频间隔相同。
可选的,时域跳频间隔可以为子帧的整数倍或时隙的整数倍或符号的整数倍。本申请以时域跳频间隔可以为子帧的整数倍为例进行说明。
可选的,上述N个频率单元中不同的频率单元的时域跳频间隔可以相同,也可以不同,本申请对此不进行限定。如图5所示,以各个频率单元的时域跳频间隔相同为例,频率单元0和频率单元1均包括1个RB,且时域跳频间隔均为1个子帧。或者,频率单元0和频率单元1均包括1个RB,且频率单元0的时域跳频间隔为1个子帧,频率单元1的时域跳频间隔为2个子帧。
可选的,第一通信设备还可以向第二通信设备发送指示信息,该指示信息用于指示上述N个频率单元中每个频率单元的时域跳频间隔。例如上述N个频率单元中每个频率单元的时域跳频间隔可以独立配置,比如N个频率单元中的每个频率单元对应一个时域跳频间隔,也即是说,一共需要配置N个时域跳频间隔。
需要说明的是,上述N个频率单元进行跳频的起始时间可以为帧0、子帧0。可以由协议预先定义好时域跳频的起始位置,则网络设备无需向终端发送时域跳频的起始位置。
参见图6,若UE2在时刻t1才收到网络设备发送的时域跳频间隔,则UE2自行根据当前子帧的位置以及时域跳频间隔计算跳频位置,在时刻t1至时刻t2之间在频率单元1上接收数据,在时刻t2进行跳频,切换至从频率单元0接收数据,以此类推。
上述频率单元的频域位置信息可以包括频率单元的绝对频点号,或者频率单元的绝对频点号+偏置信息,或者频率单元的起始频点+终止频点,或者频率单元的起始频点+带宽,或者包括频率单元的终止频点+带宽。如图5所示,频率单元0的带宽为1个RB,且频率单元0的频域位置为RB0,频率单元1的带宽为1个RB,且频率单元1的频域位置为RB2,则网络设备向UE1发送的2个配置信息分别包括RB0和RB2的索引号或者绝对频点号,以指示UE1的PDSCH跳频所占用的频域资源。
可选的,上述N个配置信息中的每个配置信息还可以包括以下信息中至少一项:部署模式、天线端口数、参考信号的映射位置、参考信号的映射RE数、参考信号的类型、有效子帧配置、下行间隔(DL gap)配置。终端设备根据配置信息即可确定出映射图样,进而可以从上述N个频率单元中用于映射数据符号的RE接收数据符号。
实施图4所示方法实施例,网络设备向终端设备发送多个频率单元的配置信息,多个频率单元的带宽、频域位置、时域跳频间隔均可以灵活配置,不局限于窄带跳频,且不局限于系统带宽。终端设备的数据在这多个频率单元之间跳频,可以利用跳频的频率分集增益提升覆盖性能,减少时域传输时长,从而降低小区间干扰。
在实施例一中,上述N个频率单元满足以下至少一项:部署模式相同;参考信号的天线端口数相同;一个子帧或者一个时隙或者一个子帧的第一个时隙内用于数据传输的起始 符号位置相同。其中,部署模式包括独立部署模式、保护带部署模式或带内部署模式。这是为了保障上述N个频率单元的数据符号映射图样相同。
上述实施例中,多个频率单元之间约束满足以下至少一项:采用相同部署模式,参考信号的天线端口数相同,一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同,可以保证不同频率单元上可用于数据符号资源映射的RE数相同,,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,进而减少终端设备进行合并译码的复杂度。其中子帧级重复的好处是可以直接复数符号合并,提升性能,另外可以两个子帧上传输的符号完全相同,可以通过差分运算提升频偏估计的精度。
其中,参考信号可以包括用于数据信道的解调参考信号(demodulation reference signal,DMRS)、用于控制信道的解调参考信号、定位参考信号(positioning reference signal,PRS)、信道状态信息参考信号(channel state information-reference signal,CSI-RS)、唤醒信号(wake up signal,WUS)、相位跟踪参考信号(phase-tracking reference signal,PTRS)、小区特定参考信号(cell-specific reference signals,CRS)、窄带参考信号(narrowband reference signal,NRS)、窄带定位参考信号(narrowband positioning reference signal)、窄带唤醒信号(narrowband wake up signal,NWUS)、或者MTC唤醒信号(MTC wake up signal,MWUS)。
实施本发明实施例一,终端设备接收到多个频率单元的配置信息,多个频率单元的带宽、频域位置、时域跳频间隔均可以灵活配置。终端设备的数据在这多个频率单元之间跳频,可以利用跳频的频率分集增益提升覆盖性能,减少时域传输时长,从而降低小区间干扰。多个频率单元之间约束满足以下至少一项:采用相同部署模式,参考信号的天线端口数相同,一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同,可以保证不同频率单元上可用于数据符号资源映射的RE数相同,,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,可以采用相同的速率匹配方式,进而减少终端设备进行合并译码的复杂度。
在实施例二中,上述N个频率单元的部署模式可以不同,或者,上述N个频率单元上参考信号的天线端口数可以不同,或者,上述N个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置可以不同。这种方式对于网络部署来说可以在多个不同系统之间部署,更加灵活,但是不同频率单元上可用于数据符号资源映射的RE数可能不同,在多个频率单元上使用子帧级重复或者一个传输块需要映射到多个频率单元上的子帧时,,终端设备需要可以采用不同的速率匹配方式,这样会增加终端设备合并译码的复杂度。为解决降低接收端合并译码的复杂度,本发明实施例提供了如下三种解决方式。
方式一:可以按照一个子帧内可用RE(可用于映射数据符号的RE)数较多的频率单元作为基准,RE数较少的频率单元puncture该频率单元中不可以用于数据符号传输的RE处映射的数据符号。这里,puncture是指被计算但未在映射中使用。如图7所示,频率单元0可用RE数相较于频率单元1可用RE数较多,则以频率单元0为基准,频率单元1按照频率单元0中可用RE的图案进行数据符号映射。图7中示出了一个子帧内可用RE的编号,可以看出通过这种方式,频率单元0和频率单元1便于进行子帧级重复,接收端可以 对频率单元0和频率单元1上RE的索引相同的部分进行合并接收。
方式二:可以按照一个子帧内可用RE(可用于映射数据符号的RE)数较少的频率单元作为基准,不同频率单元按照这个基准进行资源映射。如图8所示,频率单元1可用RE数相较于频率单元0较少,则以频率单元1为基准,频率单元0按照频率单元1中可用RE的图案进行映射,频率单元0在一个子帧内可用于传输数据符号的RE的位置及数量和频率单元1在一个子帧内可用于传输数据符号的RE的位置及数量相同。可以看出相较于方式一,方式二中频率单元0中实际进行数据符号映射使用的RE数变少了。图8中画了一个子帧内可用RE的编号,可以看出通过这种方式,频率单元0和频率单元1便于进行子帧级重复,频率单元0和频率单元1上RE的索引完全相同,因此接收端可以对频率单元0和频率单元1上RE的索引相同的部分进行合并接收。
方式三:为保证子帧级重复在一个频率单元上完成,可将用于传输相同数据符号的连续K个子帧映射在同一频率单元上。例如当子帧级重复需要跨频率单元时,可以延长时域跳频间隔来解决,以保障用于传输相同数据符号的连续K个子帧映射在同一频率单元上,这样接收端可以在同一频率单元上对至少两个子帧传输的相同数据符号进行合并接收。这种情况下,网络设备可以向终端通知偏置信息,以指示延长后的时域跳频间隔。
实施本发明实施例二,终端设备接收到多个频率单元的配置信息,多个频率单元的带宽、频域位置、时域跳频间隔均可以灵活配置。终端设备的数据在这多个频率单元之间跳频,可以利用跳频的频率分集增益提升覆盖性能,减少时域传输时长,从而降低小区间干扰。对多个频率单元的部署模式,多个频率单元上参考信号的天线端口数,多个频率单元在一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置没有约束,可以增加网络部署灵活性,通过对资源映射方式或者时域跳频间隔的约束,降低了子帧级重复复杂度以及终端设备合并译码的复杂度。
需要说明的是,上述实施例中所提及的“子帧”可以是有效子帧。有效子帧的定义和具体的通信系统有关。
以NB-IoT系统为例,有效子帧可称为NB-IoT下行子帧(NB-IoT DL subframe)。在以下情形中,NB-IoT系统中的终端设备应当假设一个子帧为NB-IoT下行子帧:
比如,终端设备确定不包括窄带主同步信号(narrowband primary synchronization signal,NPSS),或者窄带辅同步信号(narrowband secondary synchronization signal,NSSS),或者窄带物理广播信道(narrowband physical broadcast channel,NPBCH),或者NB系统信息块类型(systemInformation block type1-NB)传输的子帧为NB-IoT下行子帧。
或者,终端设备接收配置参数,该配置参数用于配置NB-IoT下行子帧。进而,终端设备根据该配置参数,可以确定NB-IoT下行子帧。其中,该配置参数可以通过系统消息或者RRC信令配置,本申请实施例对此不作具体限定。
以eMTC系统为例,有效子帧可称为带宽减少低复杂度或者覆盖增强(bandwidth-reduced Low-complexity or coverage enhanced,BL/CE)下行子帧。其中,BL/CE下行子帧可以通过配置参数进行配置,该配置参数通过系统消息或者RRC信令配置。
上述主要从各个设备之间交互的角度对本申请实施例提供的方案进行了介绍。可以理 解的是,各个网元,例如终端设备、网络设备等为了实现上述功能,其包含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,结合本文中所公开的实施例描述的各示例的网元及算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。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和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
可以理解的是,上述方法中,由网络设备(上述第一通信设备)实现的方法,也可以由可配置于网络设备的部件(例如芯片或者电路)实现,由终端设备(上述第二通信设备)实现的方法,也可以由可配置于终端设备的部件(例如芯片或者电路)实现。
本申请实施例可以根据上述方法示例对终端设备、网络设备等进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下,图9示出了上述实施例中所涉及的第一通信设备的一种可能的逻辑结构示意图,该第一通信设备900用于执行前述各方法实施例中对应第一通信设备的过程。第一通信设备900包括:处理模块901和收发模块902。示例性的,收发模块902用于支持第一通信设备900执行前述图4所示方法实施例中对应第一通信设备接收或者发送信息的步骤。处理模块901,用于支持第一通信设备900执行前述图4所示方法实施例中对应第一通信设备900相关的处理步骤,例如实现除收发单元功能以外的其他功能等。可选的,该第一通信设备900还可以包括存储模块,用于存储代码(程序)或者数据。一种可能的方式中,处理模块901可以调用存储模块的代码或者数据,使得第一通信设备900实现确定N个频率单元,所述N个频率单元采用跳频模式,所述N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数。
在硬件实现上,上述处理模块901可以为处理器或者处理电路等。收发模块902可以为收发器或者收发电路或者接口电路等。存储模块可以为存储器。上述处理模块、收发模块和存储模块可以集成在一起,也可以分离。
图10示出了上述实施例中所涉及的第二通信设备的一种可能的逻辑结构示意图,该第二通信设备用于执行前述各方法实施例中对应第二通信设备的过程。第二通信设备1000包括:收发模块1001和处理模块1002。示例性的,收发模块1001用于支持第二通信设备1000执行前述图4所示方法实施例中对应第二通信设备接收或者发送信息的步骤。处理模块1002,用于支持第二通信设备执行前述图4所示方法实施例中第二通信设备相关的处理步骤,例如实现除收发单元功能以外的其他功能等。可选的,该第二通信设备1000还可以包括存储模块,用于存储代码(程序)或者数据。一种可能的方式中,处理模块1002可以调用存储模块的代码或者数据,使得第二通信设备1000实现根据所述N个配置信息确定所述N个频域单元的频域位置,其中N为大于1的正整数。
在硬件实现上,上述处理模块1002可以为处理器或者处理电路等。收发模块1001可 以为收发器或者收发电路或者接口电路等。存储单元可以为存储器。上述处理模块、收发模块和存储模块可以集成在一起,也可以分离。
图11所示,为本申请的实施例提供的上述实施例中所涉及的网络设备的一种可能的硬件结构示意图。该网络设备可以是上述第一通信设备。该网络设备用于执行前述各方法实施例中对应第一通信设备的过程。如图11所示,网络设备1100可包括:一个或多个处理器1101、存储器1102、网络接口1103、收发器1105和天线1108。这些部件可通过总线1104或者其他方式连接,图11以通过总线连接为例。其中:
网络接口1103可用于网络设备1100与其他通信设备,例如其他网络设备,进行通信。具体的,网络接口1103可以是有线接口。
收发器1105可用于对处理器1101输出的信号进行发射处理,例如信号调制。收发器1105还可用于对天线1108接收的移动通信信号进行接收处理。例如信号解调。在本申请的一些实施例中,收发器1105可看作一个无线调制解调器。在网络设备1100中,收发器1105的数量可以是一个或者多个。天线1108可用于将传输线中的电磁能转换成自由空间中的电磁波,或者将自由空间中的电磁波转换成传输线中的电磁能。
存储器1102可以和处理器1101通过总线1104或者输入输出端口耦合,存储器1102也可以与处理器1101集成在一起。存储器1102用于存储各种软件程序和/或多组指令或者数据。具体的,存储器1102可包括高速随机存取的存储器,并且也可包括非易失性存储器,例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器1102可以存储操作系统(下述简称系统),例如uCOS、VxWorks、RTLinux等嵌入式操作系统。存储器1102还可以存储网络通信程序,该网络通信程序可用于与一个或多个附加设备,一个或多个终端设备,一个或多个网络设备进行通信。
处理器1101可以是中央处理器单元,通用处理器,数字信号处理器,专用集成电路,现场可编程门阵列或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。所述处理器也可以是实现确定功能的组合,例如包含一个或多个微处理器组合,数字信号处理器和微处理器的组合等等。
本申请实施例中,处理器1101可用于读取和执行计算机可读指令。具体的,处理器1101可用于调用存储于存储器1102中的程序,例如本申请的一个或多个实施例提供的信息传输方法在网络设备1100侧的实现程序,并执行该程序包含的指令。
可以理解的,网络设备1100可以是图2示出的无线通信系统110中的网络设备111,可实施为基站收发台,无线收发器,一个基本服务集(BSS),一个扩展服务集(ESS),NodeB,eNodeB,gNB等等。
需要说明的是,图11所示的网络设备1100仅仅是本申请实施例的一种实现方式,实际应用中,网络设备1100还可以包括更多或更少的部件,这里不作限制。关于网络设备1100的具体实现可以参考前述方法实施例中的相关描述,此处不再赘述。
如图12所示,为本申请的实施例提供的上述实施例中所涉及的终端设备的一种可能的硬件结构示意图,该终端设备可以为上述第二通信设备。该终端设备用于执行前述各方法实施例中对应第二通信设备的过程。如图12所示,终端设备120可包括:输入输出模块(例 如音频输入输出模块125、按键输入模块126以及显示器127等)、用户接口128、一个或多个处理器121、收发器122、天线123以及存储器124。这些部件可通过总线或者其它方式连接,图12以通过总线连接为例。其中:
天线123可用于将电磁能转换成自由空间中的电磁波,或者将自由空间中的电磁波转换成传输线中的电磁能。收发器122可用于对处理器121输出的信号进行发射处理,也可用于对天线123接收的移动通信信号进行接收处理。在本申请实施例中,收发器122可看作一个无线调制解调器。在终端设备120中,收发器122的数量可以是一个或者多个。
除了图12所示的收发器122,终端设备120还可包括其他通信部件,例如GPS模块、蓝牙(Bluetooth)模块、无线高保真(wireless fidelity,Wi-Fi)模块等。不限于上述表述的无线通信信号,终端设备120还可以支持其他无线通信信号,例如卫星信号、短波信号等等。不限于无线通信,终端设备120还可以配置有有线网络接口(如LAN接口)来支持有线通信。
输入输出模块可用于实现终端设备120和用户/外部环境之间的交互,可主要包括音频输入输出模块125、按键输入模块126以及显示器127等。具体的,输入输出模块还可包括:摄像头、触摸屏以及传感器等等。其中,输入输出模块均通过用户接口128与处理器121进行通信。
存储器124可以和处理器121通过总线或者输入输出端口耦合,存储器124也可以与处理器121集成在一起。存储器124用于存储各种软件程序和/或多组指令。具体的,存储器124可包括高速随机存取的存储器,并且也可包括非易失性存储器,例如一个或多个磁盘存储设备、闪存设备或其他非易失性固态存储设备。存储器124可以存储操作系统(下述简称系统),例如ANDROID,IOS,WINDOWS,或者LINUX等嵌入式操作系统。存储器124还可以存储网络通信程序,该网络通信程序可用于与一个或多个附加设备,一个或多个终端设备,一个或多个网络设备进行通信。存储器124还可以存储用户接口程序,该用户接口程序可以通过图形化的操作界面将应用程序的内容形象逼真的显示出来,并通过菜单、对话框以及按键等输入控件接收用户对应用程序的控制操作。
在本申请实施例中,存储器124可用于存储本申请的一个或多个实施例提供的信息传输方法在终端设备120侧的实现程序。关于本申请的一个或多个实施例提供的信息传输方法的实现,请参考前述实施例。
处理器121可用于读取和执行计算机可读指令。具体的,处理器121可用于调用存储于存储器124中的程序,例如本申请的一个或多个实施例提供的信息传输方法在终端设备120侧的实现程序,并执行该程序包含的指令以实现前续实施例涉及的信息传输方法。处理器121可支持:全球移动通信系统(global system for mobile communication,GSM)(2G)通信、宽带码分多址(wideband code division multiple access,WCDMA)(3G)通信,以及长期演进(long term evolution,LTE)(4G)通信、以及5G通信等等中的一个或多个。可选地,当处理器121发送任何消息或数据时,其具体通过驱动或控制收发器122做发送。可选地,当处理器121接收任何消息或数据时,其具体通过驱动或控制收发器122做接收。因此,处理器121可以被视为是执行发送或接收的控制中心,收发器122是发送和接收操作的具体执行者。
可以理解的,终端设备120可以是图2示出的无线通信系统100中的终端设备102, 可实施为eMTC设备、移动设备,移动台(mobile station),移动单元(mobile unit),无线单元,远程单元,用户代理,移动客户端等等。
需要说明的,图12所示的终端设备120仅仅是本申请实施例的一种实现方式,实际应用中,终端设备120还可以包括更多或更少的部件,这里不作限制。关于终端设备120的具体实现可以参考前述方法实施例中的相关描述,此处不再赘述。
参见图13,图13示出了本申请提供的一种通信芯片的结构示意图。如图13所示,通信芯片1300可包括:处理器1301,以及耦合于处理器1301的一个或多个接口1302。示例性的:
处理器1301可用于读取和执行计算机可读指令。具体实现中,处理器1301可主要包括控制器、运算器和寄存器。示例性的,控制器主要负责指令译码,并为指令对应的操作发出控制信号。运算器主要负责执行定点或浮点算数运算操作、移位操作以及逻辑操作等,也可以执行地址运算和转换。寄存器主要负责保存指令执行过程中临时存放的寄存器操作数和中间操作结果等。具体实现中,处理器1301的硬件架构可以是专用集成电路(application specific integrated circuits,ASIC)架构、无互锁管道阶段架构的微处理器(microprocessor without interlocked piped stages architecture,MIPS)架构、进阶精简指令集机器(advanced RISC machines,ARM)架构或者NP架构等等。处理器1301可以是单核的,也可以是多核的。
示例性的,接口1302可用于输入待处理的数据至处理器1301,并且可以向外输出处理器1301的处理结果。具体实现中,接口1302可以是通用输入输出(general purpose input output,GPIO)接口,可以和多个外围设备(如显示器(LCD)、摄像头(camara)、射频(radio frequency,RF)模块等等)连接。接口1302通过总线1303与处理器1301相连。
一种可能的实现方式中,处理器1301可用于从存储器中调用本申请的一个或多个实施例提供的信息传输方法在网络设备或终端设备侧的实现程序或者数据,使得该芯片可以实现前述图4所示的信息传输方法。存储器可以和处理器1301集成在一起,也可以通过接口1302与通信芯片130相耦合,也就是说存储器可以是通信芯片130的一部分,也可以独立于该通信芯片130。接口1302可用于输出处理器1301的执行结果。本申请中,接口1302可具体用于输出处理器1301的译码结果。关于本申请的一个或多个实施例提供的信息传输方法可参考前述各个实施例,这里不再赘述。
需要说明的,处理器1301、接口1302各自对应的功能既可以通过硬件设计实现,也可以通过软件设计来实现,还可以通过软硬件结合的方式来实现,这里不作限制。
在本申请的另一实施例中,还提供一种计算机存储介质,计算机存储介质中存储有计算机执行指令,当一个设备(可以是单片机,芯片等)或者处理器可以调用可读存储介质中存储的计算机执行指令,从而使得该设备或者处理器来执行图4所提供的信息传输方法中终端设备或网络设备的步骤。前述的计算机存储介质可以包括:U盘、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。
在本申请的另一实施例中,还提供一种计算机程序产品,该计算机程序产品包括计算机执行指令,该计算机执行指令存储在计算机可读存储介质中;设备的至少一个处理器可 以从计算机可读存储介质读取该计算机执行指令,至少一个处理器执行该计算机执行指令使得设备实施图4所提供的信息传输方法中终端设备或网络设备的步骤。
在本申请的另一实施例中,还提供一种通信系统,该通信系统包括多个设备,该多个设备包括终端设备和网络设备。示例性的,网络设备可以为图9所示的第一通信设备或图11所提供的网络设备,且用于执行图4所提供的信息传输方法中对应第一通信设备的步骤。和/或,终端设备可以为图10所示的第二通信设备或图12所提供的终端设备,且用于执行图4所提供的信息传输方法中对应第二通信设备的步骤。
最后应说明的是:以上,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以权利要求的保护范围为准。
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。计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请实施例的流程或功能。计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。计算机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,计算机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(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)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。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包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,DVD)、或者半导体介质(例如固态硬盘solid state disk(SSD))等。
综上,以上仅为本申请的较佳实施例而已,并非用于限定本申请的保护范围。凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本申请的保护范围之内。
Claims (26)
- 一种信息传输方法,其特征在于,包括:第一通信设备确定N个频率单元,所述N个频率单元采用跳频模式,所述N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;所述第一通信设备向第二通信设备发送N个配置信息,所述N个配置信息与所述N个频率单元一一对应,所述N个配置信息分别包括与其对应的频率单元的频域位置信息;所述第一通信设备在所述N个频域单元上向所述第二通信设备发送数据。
- 根据权利要求1所述的方法,其特征在于,所述N个频率单元满足以下至少一项:部署模式相同,所述部署模式包括独立部署模式、保护带部署模式或带内部署模式;参考信号的天线端口数相同;一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同。
- 根据权利要求1所述的方法,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的资源单元RE数大于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第二频率单元在一个子帧内可用于传输数据符号的RE以所述第一频率单元在一个子帧内可用于传输数据符号的RE为基准进行数据符号的映射,其中所述第二频率单元在一个子帧内不可用于传输数据符号的RE参与计数但不用于数据符号的映射。
- 根据权利要求1所述的方法,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数小于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第一频率单元在一个子帧内可用于传输数据符号的RE的位置及数量和所述第二频率单元在一个子帧内可用于传输数据符号的RE的位置及数量相同。
- 根据权利要求1所述的方法,其特征在于,用于传输相同数据符号的连续K个子帧位于同一频率单元,K为正整数。
- 根据权利要求1至5任一项所述的方法,其特征在于,还包括:所述第一通信设备向所述第二通信设备发送指示信息,所述指示信息用于指示所述N个频率单元的时域跳频间隔。
- 一种信息传输方法,其特征在于,包括:第二通信设备接收第一通信设备发送的N个配置信息,所述N个配置信息与N个频率单元一一对应,所述N个配置信息分别包括与其对应的频率单元的频域位置信息,所述N 个频率单元采用跳频模式,所述N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;所述第二通信设备根据所述N个配置信息确定所述N个频域单元的频域位置;所述第二通信设备从所述N个频率单元接收所述第一通信设备发送的数据。
- 根据权利要求7所述的方法,其特征在于,所述N个频率单元满足以下至少一项:部署模式相同,所述部署模式包括独立部署模式、保护带部署模式或带内部署模式;参考信号的天线端口数相同;一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同。
- 根据权利要求7所述的方法,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数大于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第二频率单元在一个子帧内可用于传输数据符号的RE以所述第一频率单元在一个子帧内可用于传输数据符号的RE为基准进行数据符号的映射,其中所述第二频率单元在一个子帧内不可用于传输数据符号的RE参与计数但不用于数据符号的映射。
- 根据权利要求7所述的方法,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数小于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第一频率单元在一个子帧内可用于传输数据符号的RE的位置及数量和所述第二频率单元在一个子帧内可用于传输数据符号的RE的位置及数量相同。
- 根据权利要求7所述的方法,其特征在于,用于传输相同数据符号的连续K个子帧位于同一频率单元,K为正整数。
- 根据权利要求7至11任一项所述的方法,其特征在于,所述方法还包括:所述第二通信设备接收所述第一通信设备发送的指示信息,所述指示信息用于指示所述N个频率单元的时域跳频间隔。
- 一种通信设备,其特征在于,包括:处理模块,用于确定N个频率单元,所述N个频率单元采用跳频模式,所述N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;收发模块,用于向第二通信设备发送N个配置信息,所述N个配置信息与所述N个频率单元一一对应,所述N个配置信息分别包括与其对应的频率单元的频域位置信息;所述收发模块,还用于在所述N个频域单元上向所述第二通信设备发送数据。
- 根据权利要求13所述的通信设备,其特征在于,所述N个频率单元满足以下至 少一项:部署模式相同,所述部署模式包括独立部署模式、保护带部署模式或带内部署模式;参考信号的天线端口数相同;一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同。
- 根据权利要求13所述的通信设备,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数大于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第二频率单元在一个子帧内可用于传输数据符号的RE以所述第一频率单元在一个子帧内可用于传输数据符号的RE为基准进行数据符号的映射,其中所述第二频率单元在一个子帧内不可用于传输数据符号的RE参与计数但不用于数据符号的映射。
- 根据权利要求13所述的通信设备,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数小于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第一频率单元在一个子帧内可用于传输数据符号的RE的位置及数量和所述第二频率单元在一个子帧内可用于传输数据符号的RE的位置及数量相同。
- 根据权利要求13所述的通信设备,其特征在于,用于传输相同数据符号的连续K个子帧位于同一频率单元,K为正整数。
- 根据权利要求13至17任一项所述的通信设备,其特征在于,所述收发模块还用于:向所述第二通信设备发送指示信息,所述指示信息用于指示所述N个频率单元的时域跳频间隔。
- 一种通信设备,其特征在于,包括:收发模块,用于接收第一通信设备发送的N个配置信息,所述N个配置信息与N个频率单元一一对应,所述N个配置信息分别包括与其对应的频率单元的频域位置信息,所述N个频率单元采用跳频模式,所述N个频率单元中的每个频率单元包括M个载波或M个资源块RB或M个子载波,其中N为大于1的正整数,M为正整数;处理模块,用于根据所述N个配置信息确定所述N个频域单元的频域位置;所述收发模块,还用于从所述N个频率单元接收所述第一通信设备发送的数据。
- 根据权利要求19所述的通信设备,其特征在于,所述N个频率单元满足以下至少一项:部署模式相同,所述部署模式包括独立部署模式、保护带部署模式或带内部署模式;参考信号的天线端口数相同;一个子帧内或者一个时隙内或者一个子帧的第一个时隙内用于数据传输的起始符号位置相同。
- 根据权利要求19所述的通信设备,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数大于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第二频率单元在一个子帧内可用于传输数据符号的RE以所述第一频率单元在一个子帧内可用于传输数据符号的RE为基准进行数据符号的映射,其中所述第二频率单元在一个子帧内不可用于传输数据符号的RE参与计数但不用于数据符号的映射。
- 根据权利要求19所述的通信设备,其特征在于,所述第一频率单元在一个子帧内可用于传输数据符号的RE数小于或等于所述第二频率单元在一个子帧内可用于传输数据符号的RE数,则所述第一频率单元在一个子帧内可用于传输数据符号的RE的位置及数量和所述第二频率单元在一个子帧内可用于传输数据符号的RE的位置及数量相同。
- 根据权利要求19所述的通信设备,其特征在于,用于传输相同数据符号的连续K个子帧位于同一频率单元,K为正整数。
- 根据权利要求19至23任一项所述的通信设备,其特征在于,所述收发模块还用于:接收所述第一通信设备发送的指示信息,所述指示信息用于指示所述N个频率单元的时域跳频间隔。
- 一种通信系统,其特征在于,包括第一通信设备和第二通信设备,所述第一通信设备为权利要求13至18任一项所述的通信设备,所述第二通信设备为权利要求19至24任一项所述的通信设备。
- 一种计算机存储介质,其特征在于,所述计算机存储介质包括指令,当所述指令在处理器上执行时实现权利要求1至6或者权利要求7至12任一项所述的信息传输方法。
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| CN115486109A (zh) * | 2021-03-31 | 2022-12-16 | 北京小米移动软件有限公司 | 一种跳频间隔确定、指示方法及装置 |
| WO2025025029A1 (zh) * | 2023-07-29 | 2025-02-06 | 华为技术有限公司 | 速率匹配的方法和通信装置 |
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| AU2022445042B2 (en) * | 2022-03-07 | 2025-06-05 | Zte Corporation | Transmissions across multiple time-domain resources in wireless communication networks |
| US20260089671A1 (en) * | 2022-10-07 | 2026-03-26 | Qualcomm Incorporated | Low-power positioning reference signal for low-power receiver |
| CN120786636A (zh) * | 2024-04-08 | 2025-10-14 | 华为技术有限公司 | 一种通信方法和装置 |
| CN121239246A (zh) * | 2024-06-27 | 2025-12-30 | 华为技术有限公司 | 信号传输方法、装置及系统 |
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| WO2025025029A1 (zh) * | 2023-07-29 | 2025-02-06 | 华为技术有限公司 | 速率匹配的方法和通信装置 |
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