WO2023198009A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

Info

Publication number
WO2023198009A1
WO2023198009A1 PCT/CN2023/087395 CN2023087395W WO2023198009A1 WO 2023198009 A1 WO2023198009 A1 WO 2023198009A1 CN 2023087395 W CN2023087395 W CN 2023087395W WO 2023198009 A1 WO2023198009 A1 WO 2023198009A1
Authority
WO
WIPO (PCT)
Prior art keywords
available time
pusch
waveform
time unit
information
Prior art date
Application number
PCT/CN2023/087395
Other languages
English (en)
French (fr)
Inventor
刘云
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202210625754.0A external-priority patent/CN116980102A/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2023198009A1 publication Critical patent/WO2023198009A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the field of mobile communication technology, and in particular, to a communication method and device.
  • the uplink transmission waveforms supported by the 5th generation mobile communication technology (5G) new radio (NR) system include orthogonal frequency division multiplexing with cyclic prefix (cyclic prefix-orthogonal frequency division multiplexing).
  • CP-OFDM orthogonal frequency division multiplexing
  • DFT-s-OFDM discrete Fourier transform-spread-orthogonal frequency division multiplexing
  • CP-OFDM is generally used when it is close to the base station. In this case, the channel is better, and multiple input multiple output (MIMO) technology can be used to transmit multiple data streams to achieve high throughput.
  • MIMO multiple input multiple output
  • DFT-s-OFDM is generally used in situations far away from the base station. Since the peak-to-average ratio of the DFT-s-OFDM waveform is low, higher average power can be used for transmission, thereby achieving better coverage.
  • Terminal equipment also called user equipment, UE, user equipment
  • the waveform used for UE uplink transmission is generally configured by the base station according to a preset period. For example, it is configured through the update of radio resource control (RRC) signaling.
  • RRC radio resource control
  • the UE cannot switch the waveform used for uplink transmission, which may result in a large delay required for the UE to switch waveforms.
  • the UE will continue to transmit repeatedly with the originally configured waveform in the subsequent uplink time slots according to the original configuration. This will occupy more time-frequency resources, causing other UEs to be unable to use these video resources.
  • this makes it impossible to switch the waveform used by the UE for uplink transmission in a timely manner.
  • RRC signaling relying solely on update waveforms cannot meet the requirements well. For example, if the UE moves away from the base station, after the UE moves a certain distance, the waveform using CP-OFDM that was previously configured for the UE is no longer applicable, and it needs to switch to the waveform using DFT-s-OFDM to improve coverage. However, due to the long cycle of RRC signaling, the cycle of RRC signaling has not yet been reached at this time, and the transmission can only continue with the original configured waveform, which is not flexible and timely enough.
  • this application provides a communication method and device that enables the UE to switch waveforms in a timely manner according to the instructions of the second information from the base station, thereby allowing the UE to flexibly and timely enhance the coverage of the UE's uplink transmission.
  • the first aspect is to provide a communication method.
  • the method includes: the terminal device receives first information from the network device.
  • the first information instructs the terminal device to send or be able to send the first physical uplink shared channel PUSCH (Physical uplink shared channel, PUSCH) in the 1st available time unit and to repeatedly send or be able to send it in the 2nd available time unit to the Nth available time unit.
  • the terminal equipment sends the first PUSCH in the first available time unit using the first waveform.
  • the terminal device receives the second information from the network device.
  • the terminal equipment sends the first PUSCH in the Mth available time unit in the second waveform.
  • the second waveform is related to the second information.
  • the first waveform adopts cyclic prefix orthogonal frequency division multiplexing CP-OFDM, or the first waveform is a waveform in which conversion precoding is not enabled.
  • the second waveform adopts discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM, or the second waveform is a waveform enabling conversion precoding.
  • the available time unit is used by the terminal device to send uplink signals.
  • N is a positive integer greater than 1
  • M is a positive integer greater than 1 and less than or equal to N.
  • the terminal equipment can perform dynamic switching of waveforms in response to the second information starting at the Mth available time unit without waiting for the repeated transmission of the first PUSCH to be completed before performing waveform switching.
  • Waveform switching can be implemented flexibly and timely, thereby This enables terminal equipment to flexibly and promptly enhance coverage and improve uplink transmission performance.
  • the terminal device receives the first information from the network device.
  • the first information instructs the terminal equipment to send or be able to send the first physical uplink shared channel PUSCH in the first available time unit, and to repeatedly send or be able to repeatedly send the first PUSCH in the second available time unit to the Nth available time unit, including :
  • the terminal device receives the first information from the network device.
  • the first information instructs the terminal equipment to send the first PUSCH in the 1st available time unit, and to repeatedly send the first PUSCH in the 2nd available time unit to the Nth available time unit;
  • the terminal device receives the first information from the network device.
  • the first information indicates that the terminal equipment can send the first PUSCH in the first available time unit, and can repeatedly send the first PUSCH in the second available time unit to the Nth available time unit.
  • the terminal device receiving the second information from the network device includes: the terminal device receiving the second information from the network device in the first time unit;
  • the terminal equipment uses the second waveform to send the first PUSCH in the Mth available time unit, including: the terminal equipment determines the second waveform based on the second information; the terminal equipment determines the Mth available time unit based on the first time unit and the first parameter. Time unit; the terminal equipment sends the first PUSCH in the second waveform in the Mth available time unit; wherein the first parameter is determined by the terminal equipment based on the preconfigured second parameter.
  • the first time unit may be earlier than, later than, or waiting for the first available time unit, and this application does not limit this.
  • the method includes: the terminal device starts the first joint channel estimation window in the Mth available time unit.
  • the terminal equipment can start a new joint channel estimation window after waveform switching, avoiding the use of PUSCH with different waveforms for joint channel estimation, thereby improving the reliability of channel estimation, enhancing coverage, and improving transmission performance.
  • the terminal device After the first joint channel estimation window ends, the terminal device The equipment resumes transmitting in the first waveform and starts the second joint channel estimation window.
  • joint channel estimation can be performed flexibly with waveform switching, thereby improving channel estimation reliability, enhancing coverage, and improving transmission performance.
  • the terminal device in response to the third information from the network device, the terminal device sends in the first waveform and starts the second joint channel estimation window .
  • a single available time unit spans at least two time slots, or the single available time unit is a single available time slot.
  • a single available time unit spans at least two time slots, including: a single available time unit includes the rear part of the previous time slot and the front part of the next time slot; or, a single available time unit includes the entire sum of the previous time slot The first part of the next time slot; or a single available time unit contains all of the previous time slot and all of the next time slot; or a single available time unit contains the last part of the previous time slot and the first part of the next time slot; or a single available time unit The available time unit contains all of the first two time slots and the first part of the next time slot.
  • a single available time unit can span at least two time slots across domains in more ways, which is not limited in this application.
  • the available time unit includes an available time slot, and the available time slot includes at least one of the following: an uplink time slot and a special time slot.
  • the available time units are limited. Among them, special time slots can be used as uplink time slots.
  • the first information further instructs the terminal device to send the first PUSCH in the first waveform.
  • the method further includes: the terminal device determines a first length according to the second information, and the length of the first joint channel estimation window is determined based on at least the first length.
  • the first information when the first information instructs the terminal device to send the first physical uplink shared channel PUSCH in the 1st available time unit, and in the 2nd available time unit to the Nth available time
  • the first information includes first downlink indication information DCI (downlink control information, DCI).
  • the first information indicates that the terminal equipment can send the first physical uplink shared channel PUSCH in the first available time unit, and in the second available time unit to the Nth available time unit
  • the first information includes first signaling, and the first signaling also indicates the first waveform.
  • the first signaling includes radio resource control RRC signaling.
  • the second frequency domain resource determined according to the second information is the same as the first frequency domain resource occupied by the first PUSCH; the second frequency domain resource determined according to the second information is in one time slot.
  • the number of starting symbols and continuing symbols in is the same as the number of starting symbols and continuing symbols in one slot occupied by the first PUSCH.
  • the i-th available time unit and the (i+1)-th available time unit among the 1st available time unit to the Nth available time unit are adjacent to each other; where i is greater than or equal to 1, and less than or equal to (N-1) positive integer.
  • the second aspect is to provide a communication method.
  • the method includes: the network device sends first information to the terminal device, the first information instructs the terminal device to send or be able to send the first PUSCH in the 1st available time unit, and repeats in the 2nd available time unit to the Nth available time unit.
  • the first PUSCH is sent or can be sent repeatedly.
  • the network device sends second information to the terminal device, and the second information indicates switching to the second waveform or a switching waveform.
  • the network device is available at the Mth time On the unit, the first PUSCH from the terminal device is received in the second waveform.
  • the second waveform is related to the second information.
  • the second waveform adopts discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM, or the second waveform is a waveform enabling conversion precoding.
  • the available time unit is used by the terminal device to send uplink signals.
  • N is a positive integer greater than 1
  • M is a positive integer greater than 1 and less than or equal to N.
  • the network device sends the second information to the terminal device, so that the terminal device performs dynamic switching of waveforms in time in the Mth available time unit, and receives the second waveform from the terminal device in the Mth available time unit.
  • One PUSCH can realize flexible and timely notification of waveform switching, as well as flexible and timely reception after waveform switching.
  • the terminal equipment can switch the waveform without waiting for the repeated transmission to complete, thereby realizing flexible, timely and dynamic waveform switching, making The terminal equipment enhances the coverage and flexibly and timely receives the first PUSCH sent by the terminal equipment to improve the transmission effect.
  • the One piece of information includes first downlink indication information DCI.
  • the method before the network device sends the first information to the terminal device, the method includes: the network device sends first signaling to the terminal device, and the first signaling indicates the first waveform,
  • the first waveform adopts cyclic prefix orthogonal frequency division multiplexing CP-OFDM, or the first waveform is a waveform in which conversion precoding is not enabled.
  • the first signaling includes radio resource control RRC signaling.
  • the first information when the first information indicates that the terminal equipment can send the first physical uplink shared channel PUSCH in the first available time unit, and in the second available time unit to the Nth available time unit, the first information includes the first signaling, and the first signaling also indicates the first waveform.
  • the first waveform uses cyclic prefix orthogonal frequency division multiplexing CP-OFDM, or the first waveform Is the waveform without conversion precoding enabled.
  • the first signaling includes radio resource control RRC signaling.
  • the network device sends the second information to the terminal device, including: the network device sends the second information to the terminal device in the first time unit.
  • the network device receives the first PUSCH from the terminal device in the second waveform on the Mth available time unit, including: the network device determines the Mth available time unit based on the first time unit and the first parameter.
  • the network device receives the first PUSCH from the terminal device in the second waveform in the Mth available time unit.
  • the first parameter is determined by the network device based on the preconfigured second parameter.
  • a single available time unit spans at least two time slots, or the single available time unit is a single available time slot.
  • the available time unit includes available time slots, and the available time slots include at least one of the following: uplink time slots and special time slots.
  • the second frequency domain resource indicated by the second information is the same as the first frequency domain resource occupied by the first PUSCH.
  • the number of starting symbols and continuing symbols in a time slot indicated by the second information is respectively the same as the number of starting symbols and continuing symbols in a time slot occupied by the first PUSCH.
  • i is a positive integer greater than or equal to 1 and less than or equal to (N-1).
  • the third aspect is to provide a communication method.
  • the method includes: the terminal equipment receives first information, the first information instructs the terminal equipment to send the first physical uplink shared channel PUSCH on the first available time resource in a first waveform; or, the terminal equipment receives the first signaling and The first information, the first signaling indicates the first waveform, and the first information indicates the terminal device to send the first physical uplink shared channel PUSCH on the first available time resource.
  • the first available time resource includes N1 available time units, and the N1 available time units include the first part of the first available time unit.
  • the terminal equipment receives the second information, and the second information instructs the terminal equipment to send the second PUSCH on the second available time resource in the second waveform.
  • the second available time resource includes N2 available time units, and the N2 available time units include the second part of the first available time unit.
  • the terminal device uses the second waveform to send the first PUSCH in the first part of the first available time unit and the second PUSCH in the second part of the first available time unit.
  • the second waveform is related to the second information; the first waveform uses cyclic prefix orthogonal frequency division multiplexing CP-OFDM, or the first waveform is a waveform in which conversion precoding is not enabled.
  • the second waveform adopts discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM, or the second waveform is a waveform enabling conversion precoding.
  • the available time unit is used by the terminal device to send uplink signals.
  • N1 and N2 are both positive integers greater than or equal to 2.
  • the terminal equipment can use DFT-s-OFDM to send the first PUSCH without re-instructing the waveform used by the first PUSCH, so that the terminal equipment can switch flexibly and timely in this situation. waveform, enhance coverage, and improve uplink transmission performance.
  • the method includes: after the first condition is satisfied, the terminal device sends the first PUSCH in the second waveform on at least one available time unit after the first available time unit.
  • the method includes: after the first condition is not satisfied, the terminal equipment sends the first PUSCH in the first part of the first available time unit in the first waveform; the terminal equipment A second PUSCH is transmitted in a second portion of the first available time unit with a second waveform.
  • the method includes: after the first condition is not satisfied, the terminal device sends a first waveform in at least one available time unit after the first available time unit. A push.
  • the first condition includes at least one of the following:
  • the first PUSCH uses single-layer transmission
  • the physical resource block PRB occupied by the first PUSCH is a continuous resource block
  • the starting symbol of the first PUSCH is after the starting symbol of the second PUSCH, or the ending symbol of the second PUSCH is before the starting symbol of the first PUSCH;
  • the first PUSCH and the second PUSCH are located in the same available time unit, or the number of symbols closest to each other in the available time units where the first PUSCH and the second PUSCH are located shall not exceed N1, and N1 is the default A positive integer greater than or equal to 1;
  • a single available time unit spans at least two time slots, or the single available time unit is a single available time slot.
  • the available time unit includes available time slots, and the available time slots include at least one of the following: uplink time slots and special time slots.
  • the first part and the second part do not overlap with each other.
  • the fourth aspect is to provide a communication method.
  • the method includes: the network device sends first information, and the first information instructs the terminal device to send the first PUSCH on a first available time resource in a first waveform; or, the network device sends first signaling and first information, and the first The signaling is used to indicate the first waveform, and the first information instructs the terminal device to send the first physical uplink shared channel PUSCH on the first available time resource.
  • the first available time resource includes N1 available time units, and the N1 available time units include the first part of the first available time unit.
  • the network device sends second information, and the second information instructs the terminal device to send the second PUSCH on the second available time resource in the second waveform.
  • the second available time resource includes N2 available time units, and the N2 available time units include the second part of the first available time unit.
  • the network device receives the first PUSCH in the first available time unit in the second waveform.
  • the second waveform is related to the second information.
  • the first waveform adopts cyclic prefix orthogonal frequency division multiplexing CP-OFDM, or the first waveform is a waveform in which conversion precoding is not enabled.
  • the second waveform adopts discrete Fourier transform spread spectrum orthogonal frequency division multiplexing DFT-s-OFDM, or the second waveform is a waveform enabling conversion precoding.
  • the available time unit is used for network equipment to receive uplink signals; N1 and N2 are both positive integers greater than or equal to 2.
  • the network device can flexibly and timely receive the first PUSCH from the terminal device in the corresponding waveform based on the preset rules, without re-instructing the terminal device to adopt the waveform at this time, and flexibly and Receive the first PUSCH from the terminal device in a timely manner to improve the transmission effect.
  • the method includes: after the first condition is satisfied, the network device receives the first PUSCH in a second waveform on at least one available time unit after the first available time unit.
  • the method includes: after the first condition is not satisfied, the network device receives the first PUSCH in the first available time unit in the first waveform.
  • the method includes: after the first condition is not satisfied, the network device receives the first waveform in at least one available time unit after the first available time unit. A push.
  • the first condition includes at least one of the following:
  • the first PUSCH uses single-layer transmission
  • the physical resource block PRB occupied by the first PUSCH is a continuous resource block
  • the starting symbol of the first PUSCH is after the starting symbol of the second PUSCH, or the ending symbol of the second PUSCH is before the starting symbol of the first PUSCH;
  • the first PUSCH and the second PUSCH are located in the same available time unit, or the number of symbols closest to each other in the available time units where the first PUSCH and the second PUSCH are located shall not exceed N1, and N1 is the default A positive integer greater than or equal to 1;
  • a single available time unit spans at least two time slots, or the single available time unit is a single available time slot.
  • the available time unit includes available time slots, and the available time slots include at least one of the following: uplink time slots and special time slots.
  • the first information when the first information instructs the terminal device to send the first PUSCH on the first available time resource in the first waveform, the first information includes radio resource control RRC signaling.
  • the first information when the first information instructs the terminal equipment to send the first physical uplink shared channel PUSCH on the first available time resource, the first information includes the first downlink indication information DCI,
  • the first signaling includes Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the first part and the second part do not overlap with each other.
  • a fifth aspect provides a terminal device.
  • the terminal device includes a processor and memory coupled to the processor.
  • the memory stores computer programs.
  • the terminal device is caused to execute the method described in the above-mentioned first aspect or any one of the first aspects, the third aspect or any one of the third aspects.
  • a sixth aspect provides a network device.
  • the network device includes a processor and memory coupled to the processor.
  • the memory stores computer programs.
  • the network device is caused to execute the method described in the above-mentioned second aspect or any one of the second aspects, the fourth aspect or any one of the fourth aspects.
  • a seventh aspect provides a chip.
  • the chip includes a processor and memory coupled to the processor.
  • the memory stores computer programs.
  • the chip is located inside the terminal device.
  • the processor executes the computer program, the terminal device is caused to execute the method described in the above-mentioned first aspect or any one of the first aspects, the third aspect or any one of the third aspects.
  • An eighth aspect provides a chip.
  • the chip includes a processor and memory coupled to the processor.
  • the memory stores computer programs.
  • the chip is located inside the network device.
  • the processor executes the computer program, the network device is caused to execute the method described in the above-mentioned second aspect or any one of the second aspects, the fourth aspect or any one of the fourth aspects.
  • a computer-readable storage medium stores the computer program.
  • the terminal device is caused to execute the method described in the above-mentioned first aspect or any one of the first aspects, the third aspect or any one of the third aspects.
  • computer-readable storage media can be any available media that can be accessed by a computer.
  • computer-readable media may include non-transitory computer-readable media, random-access memory (random-access memory, RAM), read-only memory (read-only memory, ROM), electrically erasable memory Except electrically electrically programmable read-only memory (EEPROM), CD-ROM or other optical disk storage, magnetic disk storage media or other magnetic storage devices, or can be used to carry or store expectations in the form of instructions or data structures any other medium that contains program code and can be accessed by a computer.
  • RAM random-access memory
  • read-only memory read-only memory
  • ROM read-only memory
  • EEPROM electrically electrically programmable read-only memory
  • CD-ROM or other optical disk storage magnetic disk storage media or other magnetic storage devices, or can be used to carry or store expectations in the form of instructions or data structures any other medium that contains program code and can be accessed by a computer.
  • a computer-readable storage medium stores the computer program.
  • the network device is caused to perform the above-mentioned second aspect or the method described in any one of the second aspects, the fourth aspect or any one of the fourth aspects.
  • a computer program product is provided.
  • the computer program product is stored on a computer-readable storage medium.
  • the terminal device is caused to execute the method described in the above-mentioned first aspect or any one of the first aspects, the third aspect or any one of the third aspects.
  • a computer program product is provided.
  • the computer program product is stored on a computer-readable storage medium.
  • the network device is caused to execute the above-mentioned second aspect or the method described in any one of the second aspects, the fourth aspect or any one of the fourth aspects.
  • a communication system in a thirteenth aspect, includes a network device and a terminal device.
  • the terminal device is used to perform the method described in the above-mentioned first aspect or any one of the first aspects, the third aspect or any one of the third aspects.
  • the network device uses In performing the method described in the above-mentioned second aspect or any one of the second aspects, the fourth aspect or any one of the fourth aspects.
  • the technical effects corresponding to the thirteenth aspect and any one of the implementation methods of the thirteenth aspect can be found in the above-mentioned first aspect and any one of the implementation methods of the first aspect, the above-mentioned second aspect and any one of the implementation of the second aspect.
  • the method, the above-mentioned third aspect and any one of the implementation methods of the third aspect, and the technical effects corresponding to any one of the above-mentioned fourth aspects and any one of the fourth aspect implementation methods will not be described again here.
  • Figure 1 is a schematic diagram of the architecture of a wireless communication system provided by this application.
  • Figure 2A is an architectural schematic diagram of a wireless communication scenario provided by this application.
  • Figure 2B is a schematic window diagram of a joint channel estimation provided by this application.
  • Figure 3 is a schematic flow chart of a communication method provided by this application.
  • Figure 4 is a schematic diagram of the time domain relationship of a communication method provided by this application.
  • Figure 5 is a schematic window diagram of another joint channel estimation provided by this application.
  • Figure 6 is a schematic flow chart of another communication method provided by this application.
  • Figure 7 is a schematic diagram of the time domain relationship between the first part and the second part in the first available time unit provided by this application;
  • Figure 8 is a schematic diagram of the transmission method when switching waveforms of multi-stream data provided by this application.
  • Figure 9 is a schematic structural diagram of a communication device provided by this application.
  • Embodiments of the present application provide a data transmission method and device.
  • the method and the device are based on the same inventive concept. Since the principles of the method and the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be repeated.
  • "and/or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, alone There are three situations B.
  • the character "/" generally indicates that the related objects are in an "or” relationship. At least one mentioned in this application refers to one or more; multiple refers to two or more.
  • the data transmission method provided by the embodiment of the present application can be applied to the fourth generation (4th generation, 4G) communication system, such as the long term evolution (long term evolution, LTE) communication system, and can also be applied to the fifth generation (5th generation, 5G) Communication systems, such as 5G new radio (NR) communication systems, or various communication systems applied in the future, such as sixth generation (6th generation, 6G) communication systems.
  • the methods provided by the embodiments of this application can also be applied to Bluetooth systems, WiFi (wireless fidelity) systems, LoRa (Long Rang) systems or car networking systems.
  • the method provided by the embodiment of the present application can also be applied to a satellite communication system, and the satellite communication system can be integrated with the above-mentioned communication system.
  • a communication system 100 includes a network device 101 and a terminal device 102 .
  • the apparatus provided in the embodiment of this application can be applied to the network device 101 or to the terminal device 102.
  • FIG. 1 only shows one possible communication system architecture to which embodiments of the present application can be applied. In other possible scenarios, the communication system architecture may also include other devices.
  • the network device 101 is a node in a radio access network (radio access network, RAN), which can also be called a base station or an access network device, such as a RAN node (or device).
  • radio access network radio access network
  • RAN radio access network
  • some examples of access network equipment include but are not limited to: gNB/NR-NB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (radio network controller, RNC), Node B (Node B, NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), base band unit (BBU) or wireless fidelity (Wifi) access point (AP) satellite equipment, or network equipment in 5G communication systems, or possible future communication systems network equipment.
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transce
  • the network device 101 can also be other devices with network device functions.
  • the network device 101 can also be a device that serves as a network device in device-to-device (D2D) communication, Internet of Vehicles communication, and machine communication.
  • the network device 101 may also be a network device in a possible future communication system.
  • gNB may include a centralized unit (CU) and a distributed unit (DU).
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU implements the functions of radio resource control (RRC) packet data convergence protocol (PDCP) layer
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU implements wireless links.
  • RRC radio resource control
  • RLC radio link control
  • media access control media access control
  • PHY physical (physical, PHY) layer functions. Since the RRC layer information will eventually become the PHY layer information, or, It is transformed from the information of the PHY layer.
  • high-level signaling such as RRC layer signaling or PHCP layer signaling
  • the network device may be a CU node, a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in the access network RAN, or the CU can be divided into network equipment in the core network CN, which is not limited here.
  • Terminal equipment 102 which can also be called user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice or data connectivity to users. , or it can be an IoT device.
  • terminal devices include handheld devices with wireless connection functions, vehicle-mounted devices, etc.
  • terminal devices can be: mobile phones, tablets, laptops, PDAs, mobile Internet devices (MID), wearable devices (such as smart watches, smart bracelets, pedometers, etc.) vehicle-mounted devices (such as , cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.), virtual reality (VR) equipment, augmented reality (AR) equipment, wireless terminals in industrial control, smart home equipment (such as , refrigerators, TVs, air conditioners, electricity meters, etc.), intelligent robots, workshop equipment, wireless terminals in driverless driving, wireless terminals in remote surgery, wireless terminals in smart grids, wireless terminals in transportation safety, Wireless terminals in smart cities, or wireless terminals in smart homes, flying equipment (such as smart robots, hot air balloons, drones, airplanes), etc.
  • vehicle-mounted devices such as , cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed rail, etc.
  • VR virtual reality
  • AR augmented reality
  • wireless terminals in industrial control such as , refrigerators,
  • the terminal device may also be other devices with terminal functions.
  • the terminal device may also be a device that serves as a terminal function in D2D communication.
  • terminal equipment with wireless transceiver functions and chips that can be installed in the aforementioned terminal equipment are collectively referred to as terminal equipment.
  • the waveform can be understood as the signal envelope in the frequency domain of the uplink data.
  • DFT-s-OFDM waveforms In the long term evolution (LTE) system, only DFT-s-OFDM waveforms (hereinafter referred to as DFT-s-OFDM waveforms) are supported for uplink data transmission.
  • DFT-s-OFDM waveforms In the 5G new radio (NR) system, The waveform using cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) (hereinafter referred to as the CP-OFDM waveform) is introduced. That is, the NR system supports the waveform using DFT-s-OFDM or CP-OFDM. Waveform for upstream data transmission.
  • CP-OFDM cyclic prefix orthogonal frequency division multiplexing
  • the CP-OFDM waveform has a low signal-to-noise ratio and is generally used when it is close to the base station. In this case, the channel is better, and MIMO technology can be used to transmit multiple data streams to achieve high throughput.
  • the DFT-s-OFDM waveform has a high signal-to-noise ratio and is generally used far away from the base station. Since the peak-to-average ratio of the DFT-s-OFDM waveform is low, it can be transmitted with a higher average power, thereby achieving better results. cover.
  • Examples of ways to configure the waveform used for uplink transmission include: after establishing an RRC connection, when the network device needs to modify the waveform used by the terminal to send uplink data, it can indicate the modified terminal through RRC connection reconfiguration (RRC connection reconfiguration) signaling.
  • Waveform for sending uplink data For example, the modified waveform can be indicated through the waveform setting (transformPrecoder) parameter in the physical uplink shared channel (physical uplink shared channal, PUSCH) control (pusch-config) field in RRC connection reconfiguration signaling.
  • the optional value of the transformPrecoder parameter is enabled or disabled. For example, when the value of this parameter is enabled, it means that the modified waveform is a DFT-s-OFDM waveform.
  • this parameter When the value of this parameter is disable, it means that the modified waveform is a CP-OFDM waveform. If the RRC connection reconfiguration letter If there is no push-config information in the command, or the RRC connection reconfiguration signaling has a push-config field but there is no transformPrecoder in the push-config field, it means that the waveform has not changed and the previous waveform will be used.
  • the network device can estimate the uplink channel condition of the UE based on the condition of the received uplink signal, such as signal strength or success rate of uplink transmission.
  • the network device sends configuration information.
  • the UE determines that the waveform used for subsequent uplink data transmission is DFT-s-OFDM based on the above configuration information.
  • One scenario involved in uplink transmission is that the terminal equipment moves away from the base station. As shown in Figure 2A, when the terminal equipment moves away from the base station, it gradually moves out of the coverage area of the CP-OFDM waveform of the base station. In this case, the originally configured CP-OFDM waveform will no longer be suitable for the current waveform after a certain distance, so it is necessary to switch the waveform to DFT-s-OFDM to improve coverage. In order to avoid the delay caused by switching waveforms through configuration information, there is a need to study dynamic waveform switching to reduce switching delays.
  • uplink data is carried by the PUSCH channel.
  • the coverage effect can be improved through the time domain repetition of PUSCH. While repeating in the time domain, when the demodulation reference signal (DMRS) carried by each repetition is at the same frequency domain position, the DMRS signals on each repetition can be combined for joint channel estimation, thereby achieving more accurate The estimated channel effect. Through more accurate channel estimation, the coverage of the PUSCH channel can also be improved.
  • time slot 1 and time slot 2 carry PUSCH1 and PUSCH2 respectively with the same waveform.
  • PUSCH2 can be a repeated transmission of PUSCH1, so joint channel estimation can be used for time slot 1 and time slot 2 to improve coverage. Effect.
  • the joint channel measurement window is used to measure the time slot range for joint channel measurement, which can start from the first PUSCH transmission until the end of a certain time slot.
  • the reason for termination may be encountering downlink transmission or other transmission.
  • a joint channel measurement window can be restarted after the downlink transmission. Therefore, in the scenario of repeated PUSCH transmission, if a downlink time slot occurs in the middle, the downlink time slot serves as a factor that affects the joint channel estimation, causing the first PUSCH transmission position after the downlink time slot to restart a joint channel estimation window.
  • the waveform used in the uplink transmission of the terminal equipment is indicated by the network equipment through RRC signaling, and the update cycle of RRC signaling is relatively long.
  • the terminal equipment cannot flexibly and timely switch waveforms.
  • the waveform cannot be switched.
  • the terminal equipment's waveform switching is not flexible and timely, and it cannot flexibly and timely enhance coverage and improve uplink transmission. performance.
  • Embodiments of the present application provide a communication method that enables the UE to switch waveforms in a timely manner according to instructions from the second information from the base station, thereby enabling the UE to flexibly and timely enhance the coverage of the UE's uplink transmission.
  • the communication method can be implemented by network equipment and terminal equipment.
  • the network device may include the network device 101 shown in FIG. 1
  • the terminal device may include the terminal device 102 shown in FIG. 1 .
  • the actions performed by the network device in this application can also be performed by components (such as chips, modules or circuits, etc.) in the network device, and/or the actions performed by the terminal device in this application can also be performed by components in the network device. It can be executed by components (such as chips, modules or circuits) in the terminal device.
  • the communication method provided by the embodiment of the present application can be used to flexibly and timely change the waveform of the UE's uplink transmission in repeated transmission scenarios.
  • the method may include the following steps:
  • the network device sends first information, which instructs the terminal device to send or be able to send the first PUSCH in the first available time unit, and to repeatedly send or be able to send it in the second available time unit to the Nth available time unit. Send the first PUSCH.
  • N is a positive integer greater than 1.
  • the first information may include downlink control information (DCI).
  • DCI downlink control information
  • the first information may include first signaling.
  • the first signaling may be RRC signaling.
  • the terminal device receives the first information.
  • the terminal device sends the first PUSCH in the first available time unit using the first waveform.
  • the available time unit is used by the terminal device to send uplink signals (for example, PUSCH).
  • a single available time unit may span at least two time slots, or a single available time unit may be a single available time slot.
  • a single available time unit spans at least two time slots, including: a single available time unit includes the last part of the previous time slot and the first part of the next time slot; or a single available time unit includes all of the previous time slot and the next time slot. the first part of the previous time slot; or a single available time unit contains all of the previous time slot and all of the following time slot; or a single available time unit contains the last part of the previous time slot and the first part of the following time slot; or a single available time unit The unit contains all of the first two time slots and the first part of the next time slot.
  • a single available time unit can span at least two time slots across domains in more ways, which is not limited in this application.
  • the available time unit may include a time slot, a symbol (or OFDM symbol), a combination of multiple time slots, a combination of multiple symbols, a combination of at least one time slot and at least one symbol, or may be an absolute time Length, etc. can be used to represent a time unit for a period of time, and this application does not limit this.
  • the time slots in this application may include uplink time slots, downlink time slots and special time slots.
  • the uplink time slot is used for uplink transmission; the downlink time slot is used for downlink transmission; special time slots can be used for uplink transmission and/or downlink transmission.
  • the available time unit during the uplink transmission process includes uplink time slots and special time slots.
  • any two available time units may be adjacent or non-adjacent in the time domain, even if the available time units have adjacent sequence numbers.
  • the 1st available time unit to the Nth available time unit there is an interval between the ith available time unit and the (i+1)th available time unit, or, between the ith available time unit and the (i+1)th available time unit.
  • i+1) available time units are adjacent to each other.
  • i is a positive integer greater than or equal to 1 and less than or equal to (N-1).
  • the first available time unit and the second available time unit may or may not be adjacent.
  • the (N-1)th available time unit and the Nth available time unit may or may not be adjacent.
  • the time domain position of the available time unit with a smaller sequence number is before the time domain position of the available time unit with a larger sequence number.
  • the time domain position of the 1st available time unit is before the time domain position of the 2nd available time unit.
  • the time domain position of the (N-1)th available time unit is before the time domain position of the Nth available time unit.
  • the above-mentioned first available time unit, second available time unit, (N-1)th available time unit and Nth available time unit are only exemplary.
  • the first waveform is a CP-OFDM waveform
  • the second waveform is a DFT-s-OFDM waveform
  • the CP-OFDM waveform is also called the waveform without transform precoding
  • the DFT-s-OFDM waveform is also called the waveform with transform precoding enabled.
  • the terminal equipment can determine to use the DFT-s-OFDM waveform for uplink transmission; if the configuration is not to enable conversion precoding, the terminal equipment can determine to use the CP-OFDM waveform for uplink transmission.
  • the RRC signaling in this application is not physical layer signaling, but MAC layer signaling.
  • the terminal device in response to the terminal device receiving the first information from the network device, the terminal device sends the first PUSCH in the first waveform on the first available time unit.
  • the first information when the first information is used to instruct the terminal equipment to send the first PUSCH on the 1st available time unit and repeatedly send the first PUSCH on the 2nd available time unit to the Nth available time unit, the first The information may be the first DCI.
  • the terminal device before receiving the first information, receives the first signaling from the network device and undergoes the first signaling configuration.
  • the first signaling is used to indicate the first waveform.
  • the configuration method of the first signaling is a semi-static configuration method.
  • the first signaling includes RRC signaling.
  • the first information is used to indicate that the terminal device can send the first PUSCH on the 1st available time unit and can repeatedly send it on the 2nd available time unit to the Nth available time unit (also known as When the first PUSCH can be repeatedly transmitted), the first information is the first signaling.
  • the first signaling includes RRC signaling.
  • RRC signaling can set the waveform.
  • the value in the PUSCH field in RRC signaling (for example, RRC connection reconfiguration signaling) is an enabled waveform setting parameter.
  • the terminal device can learn to use the first waveform for uplink transmission. For another example, if the field in the RRC signaling indicates that conversion precoding is not enabled, the terminal device may determine that the waveform is the first waveform. If the field in the RRC signaling indicates that conversion precoding is enabled, the terminal device may determine that the waveform is the second waveform.
  • the terminal device receives the first signaling from the network device, and the uplink transmission waveform indicated by the first signaling is a CP-OFDM waveform, then in S301, the terminal The device can start sending the first PUSCH in available time slot 1 in CP-OFDM waveform.
  • the time-frequency resource occupied by the first PUSCH can also be the wireless network temporary identifier (RNTI) and control resource set (control-resource set) used by the terminal device to receive (or be used for the network device to send) the DCI. , CORESET), search space (search space) and DCI format (format) and other information or parameters are determined.
  • the terminal device obtains the corresponding relationship between at least one of RNTI, CORESET, search space and DCI format and the time-frequency resource (which can be called the first corresponding relationship).
  • the corresponding time-frequency resource can be used as the time-frequency resource occupied by the first PUSCH according to the corresponding relationship.
  • the frequency domain resources in this time-frequency resource are absolute values, such as a specific frequency band or frequency.
  • the time domain resources are relative values in available time units. For example, the first symbol in an available time slot refers to the fifth symbol, etc.
  • the network device can configure a section of resources through the first signaling (such as RRC signaling) for the terminal to send uplink PUSCH. If the terminal equipment has uplink transmission needs, it can occupy this section of resources for transmission without applying to the network device. Resources, which include time-frequency resources occupied by the first PUSCH. At this time, the first signaling indicates that the terminal equipment can send the first PUSCH in the first available time unit, and can repeatedly send the first PUSCH in the second to Nth available time units.
  • the first signaling indicates that the terminal equipment can send the first PUSCH in the first available time unit, and can repeatedly send the first PUSCH in the second to Nth available time units.
  • the network device configures the above-mentioned resources through RRC signaling, and indicates the resource activation of the segment through DCI.
  • the terminal device may send the first PUSCH on the resource. .
  • the network device sends the second information.
  • the terminal device receives the second information from the network device.
  • the second information may be related to the second waveform.
  • the second information being related to the second waveform may mean that the second waveform is determined based on the second information.
  • the second information may be used to indicate using the second waveform to transmit PUSCH, or the second information may be used to indicate switching the first waveform or switching the waveform, so the terminal device may determine the second waveform according to the second information.
  • the second waveform is, for example, a DFT-s-OFDM waveform.
  • the second information may be a second DCI.
  • the second information is used to indicate switching the waveform, or switching to the second waveform.
  • the second frequency domain resource determined according to the second information is the same as the first frequency domain resource occupied by the first PUSCH.
  • the number of starting symbols and continuing symbols in a time slot determined according to the second information are respectively the same as the number of starting symbols and continuing symbols in a time slot occupied by the first PUSCH.
  • both the second information and the first information may carry the same hybrid automatic retransmission request (HARQ) process number (HARQ process number) to further indicate that the second information is not used to schedule new uplinks. data, but the waveform of the first PUSCH is switched.
  • HARQ process number field of the first information and the HARQ process number field of the second information have the same value.
  • the first time unit in which the terminal device receives the second information from the network device may be before or after the first available time unit, or may be the same.
  • the terminal device uses the second waveform to send the first PUSCH in the Mth available time unit; where M is a positive integer greater than 1 and less than or equal to N.
  • the network device may receive the first PUSCH from the terminal device in the second waveform on the Mth available time unit.
  • sending the first PUSCH in the Mth available time unit includes: repeatedly sending the first PUSCH in the Mth available time unit, or sending a part of the first PUSCH in the Mth available time unit.
  • the terminal equipment sends the first PUSCH on the (M-1)th available time unit in the first waveform or repeatedly sends the first PUSCH.
  • the Mth available time unit may be determined according to the first time unit in which the terminal device receives the second information.
  • the terminal device may also determine the Mth available time unit based on the first time unit and the first parameter.
  • the terminal device may receive the second information in the first time unit.
  • the first parameter may be determined based on a preconfigured second parameter.
  • the first parameter is represented as K 2
  • K 2 is determined based on the parameter set (numerology) of PUSCH or ⁇ PUSCH
  • ⁇ PUSCH is the subcarrier spacing of PUSCH.
  • the parameter set (numerology) or ⁇ PUSCH that is, the second parameters ⁇ PUSCH and ⁇ PDCCH are the subcarrier spacing of PUSCH and downlink physical control channel (physical downlink control channel, PDCCH) respectively.
  • ⁇ PUSCH and ⁇ PDCCH are the subcarrier intervals of PUSCH and PDCCH respectively.
  • ⁇ offset, PDCCH respectively take and ⁇ offset are determined by the ca-SlotOffset configured by the higher layer of the cell that receives the PDCCH.
  • ⁇ offset,PUSCH are respectively taken and ⁇ offset are determined by the ca-SlotOffset configured by the higher layer of the cell sending PUSCH.
  • ca-SlotOffset is a parameter configured by the higher layer for the cell that sends PUSCH.
  • n is the time slot in which the terminal device receives DCI. For the embodiment shown in Figure 3, n is the index of the first time unit.
  • the obtained K s is the Mth available time unit mentioned above.
  • K offset is a parameter configured by the high layer
  • ⁇ Koffset is a subcarrier spacing configuration parameter of frequency range (FR) 1, with a value of 0.
  • n is the time slot in which the terminal device receives DCI.
  • FR frequency range
  • ca-SlotOffset can be found in the introduction of ca-SlotOffset in Chapter 4.2 of the technical specification (TS) 38.211 of the 3rd generation partnership project (3GPP).
  • TS technical specification
  • 3GPP 3rd generation partnership project
  • K s and K 2 can be found in the description of K s and K 2 in Chapter 6.1.2.1 of TS 38.213.
  • the first parameter may be the processing delay of the second DCI.
  • This processing delay can be used at least for the terminal device to receive the second DCI and parse the content carried by the second DCI to determine the need for waveform switching.
  • the processing delay may also include the time required for the terminal device to switch the waveform used for uplink data. Since the terminal device requires a certain time delay to process the second DCI, the delay may be a certain number of symbols or a certain number of time slots, such as 10 symbols or 2 time slots. Therefore, the Mth available time unit The available time unit may be obtained by adding the time corresponding to the processing delay to the first time unit.
  • the network device can determine the first parameter in the same or similar manner, and determine the Mth available time unit according to the first time unit and the first parameter, so that in the Mth available time unit, the second waveform Receive the first PUSCH from the terminal device.
  • the manner in which the network device determines the first parameter will not be described in detail here, and may be implemented with reference to the manner in which the terminal device determines the first parameter.
  • the terminal device receives the second information from the network device in available time slot 2.
  • available time slot 2 is the first time unit.
  • the terminal device and/or the network device determine the first parameter according to the above method, it can be determined that the available time slot 4 in Figure 4 is the Mth available time unit according to the available time slot 2 and the first parameter. Therefore, the terminal equipment The first PUSCH is transmitted in DFT-s-OFDM waveform on available slot 4. Accordingly, the network device receives the first PUSCH in the DFT-s-OFDM waveform on available time slot 4.
  • the terminal equipment starts a new joint channel estimation window starting from the available time unit.
  • the terminal device sends the first PUSCH in the Mth available time unit with the second waveform, and the terminal device sends the PUSCH in the M-1th available time unit with the first waveform or repeatedly sends the first PUSCH, then the terminal The device starts the first joint channel estimation window from the Mth available time unit.
  • the terminal device re-determines the available time unit for joint channel estimation, which can improve the accuracy of joint channel estimation and thereby improve communication performance.
  • available time slot 4 is the Mth available time unit. Therefore, the terminal device starts the first joint channel estimation window from the starting time of available time slot 4.
  • the terminal device starts a new joint channel estimation window on the currently available time slot.
  • the terminal device may not change the length of the joint channel estimation window.
  • the terminal device starts a joint channel estimation window at the starting time of available time slot 1.
  • the length of the joint channel estimation window is 2 available time slots.
  • the terminal equipment should start a new joint channel estimation window in available time slot 3 and available time slot 5 respectively, that is, perform joint channel estimation in available time slot 1 and available time slot 2, and perform joint channel estimation in available time slot 3 and available time slot 4.
  • Joint channel estimation Since the terminal device starts sending the first PUSCH using the second waveform in available time slot 4 (for example, according to S303, the terminal device starts sending the first PUSCH in the second waveform starting from available time slot 4), the terminal device can start using available time slot 4.
  • the first joint channel estimation window is started, and the length of the first joint channel estimation window can still be 2 available time slots. Since the second waveform is used to transmit PUSCH starting from available time slot 4, the terminal equipment uses different waveforms to send uplink data in available time slot 3 and available time slot 4 respectively. If available time slot 3 and available time slot 4 are still combined, Channel estimation will cause a large deviation in the channel estimation result, so the terminal device restarts a new joint channel estimation window at the starting moment of available time slot 4 to improve the joint channel estimation accuracy and thereby improve communication performance.
  • the second information may also indicate the length of the joint channel estimation window (which may be called the first length), and the terminal device may determine the length of the first joint channel estimation window based on the first length.
  • the terminal device may use the first length as the length of the first joint channel estimation window, or determine the window length of the joint channel estimation based on the first length, and increase or decrease a specific value based on the first length to obtain the first joint channel estimation window length.
  • the length of the channel estimation window may also indicate parameters used to determine the length of the joint channel estimation window. For example, a value of 2 for this parameter may indicate that the first length is 2 available time slots.
  • the terminal device resumes sending the first PUSCH in the first waveform and starts the second joint channel estimation window. That is to say, the terminal equipment may send the first PUSCH according to the second waveform for a joint channel estimation window length, and then resume sending the first PUSCH according to the first waveform.
  • this application does not exclude the terminal device from transmitting K joint channel estimation window lengths according to the second waveform, where K is an integer greater than 1. It can be understood that after the K joint channel estimation windows end, the terminal equipment resumes sending the first PUSCH in the first waveform and starts the second joint channel estimation window.
  • the terminal equipment may also resume sending the first PUSCH in the first waveform and start the second joint channel estimation window after sending the first PUSCH in a specific number of available time units according to the second waveform.
  • the terminal equipment may resume sending the first PUSCH in the first waveform and start the second joint channel estimation window after ending the repeated transmission of the first PUSCH according to the second waveform.
  • the terminal device may also resume sending the first PUSCH in the first waveform and start the second joint channel estimation window according to the instruction of the network device.
  • the terminal equipment receives the third information within the first joint channel estimation window or after the end of the first joint channel estimation window, resumes sending the first PUSCH in the first waveform according to the third information, and starts the second joint channel estimation window.
  • the terminal device can also report capability information to the network device to indicate that the terminal device supports dynamic switching waveforms.
  • the network device can send activation information to the terminal device to activate the terminal device to dynamically switch waveforms. Therefore, the activation information may be sent before S301, S302 or S303.
  • the terminal device may stop executing S303.
  • the terminal device can switch the waveform in the Mth available time unit in response to the second information, without waiting for the repeated transmission of the first PUSCH to complete before switching the waveform.
  • This can be implemented flexibly and timely. Waveform switching shortens the cycle or interval of waveform switching, allowing terminal equipment to flexibly and timely enhance coverage and improve uplink transmission performance.
  • Another communication method provided by the embodiment of the present application can be used to flexibly and dynamically change the waveform of one part of the uplink transmission according to the situation when different parts of the same available time unit are used for uplink transmission of different PUSCHs. Enables the entire available time unit to use the same waveform to enhance coverage.
  • this embodiment of the present application provides another communication method:
  • the network device sends first information, and the first information instructs the terminal device to send the first PUSCH on the first available time resource in the first waveform.
  • the network device sends first information and first signaling, the first signaling indicates the first waveform, and the first information indicates the terminal device to send the first PUSCH on the first available time resource.
  • the first available time resource includes N1 available time units, the N1 available time units include the first part of the first available time unit, and N1 is a positive integer greater than or equal to 2.
  • the first available time unit may be an available time unit.
  • available time units please refer to the description in S301.
  • the terminal device receives the first information from the network device, or the first information and the first signaling.
  • the first information when the first information instructs the terminal device to send the first PUSCH on the first available time resource in the first waveform, the first information includes radio resource control RRC signaling.
  • the first information when the first information instructs the terminal device to send the first PUSCH on the first available time resource, the first information includes first downlink indication information DCI, and the first signaling includes radio resource control RRC signaling.
  • the first waveform in the process shown in Figure 6 refers to the CP-OFDM waveform
  • the second waveform is the DFT-s-OFDM waveform. It is also not excluded that in some cases, the first waveform and the second waveform are other waveforms respectively.
  • the network device sends second information.
  • the second information instructs the terminal device to send the second PUSCH on the second available time resource in the second waveform.
  • the second available time resource includes N2 available time units, and the N2 available time units include The second part of the first available time unit.
  • N2 is a positive integer greater than or equal to 2.
  • N2 can be equal to N1 or not equal to N1.
  • the first part and the second part do not overlap with each other.
  • Non-overlapping means that there is no overlap between the two.
  • the first part in the first available time unit, may be located before the second part, or the second part may be located before the first part. But there is no overlap between part one and part two.
  • the terminal device uses the second waveform in the first part of the first available time unit.
  • the first PUSCH is transmitted in a second portion of the first available time unit, and the second PUSCH is transmitted in a second portion of the first available time unit.
  • the terminal device may also send the first PUSCH in a second waveform on at least one available time unit after the first available time unit. That is to say, the terminal equipment may also send the first PUSCH in the second waveform in at least two available time units.
  • the terminal device may also resume sending the first PUSCH in the first waveform and start the second joint channel estimation window after sending the first PUSCH in the second waveform for a specific number of available time units or time lengths.
  • the terminal device may resume sending the PUSCH in the first waveform and start the second joint channel estimation window after completing the transmission of the first PUSCH in the second waveform.
  • the terminal device may also resume sending the PUSCH in the first waveform and start the second joint channel estimation window according to the instruction of the network device.
  • the terminal equipment resumes sending the PUSCH in the first waveform and starts the second joint channel estimation window.
  • the terminal equipment resumes transmitting the first PUSCH in the first waveform please refer to the previous description of resuming transmitting the first PUSCH in the first waveform after S303, which will not be described again here.
  • the terminal device may start a new channel estimation window starting from the starting moment of the first available time unit, such as starting the first joint channel estimation window.
  • the terminal device may also resume sending the first PUSCH in the first waveform and start the second joint channel estimation window after one or more joint channel estimation window lengths have elapsed after starting to send the first PUSCH in the second waveform. .
  • the first condition is described below.
  • the first condition may include at least one of the following:
  • the first PUSCH adopts single-layer transmission.
  • single-layer transmission can also be called single-port transmission or single-antenna transmission.
  • the terminal device may send the first PUSCH in the second waveform in S603. It can be understood that adopting single layer transmission is one of the requirements for allowing PUSCH to be sent according to the second waveform.
  • the terminal equipment may determine the number of transmission layers according to the first information to determine whether the first PUSCH adopts single-layer transmission.
  • the first information may indicate the transmission layer number of the first PUSCH or information corresponding to the transmission layer number.
  • the first information may be used to indicate the codeword of PUSCH, and the codeword may indicate the determined number of transmission layers.
  • the terminal device may determine the number of transmission layers of the first PUSCH according to at least one of RNTI, CORESET, search space and DCI format used to receive the first information.
  • the terminal equipment may also receive RRC signaling or MAC CE or other DCI used to instruct the first PUSCH to use single-layer transmission, which is not limited in this application.
  • the physical resource block (PRB) occupied by the first PUSCH is a continuous resource block.
  • (2) can also be expressed as the physical resource block PRB occupied by the first PUSCH is not a discontinuous resource block or an almost-contiguous resource block (almost-contiguous RB).
  • the physical resource block occupied by the first PUSCH may refer to the frequency domain resource occupied by the first PUSCH. Therefore, (2) can be understood as requiring that the frequency domain resources occupied by the first PUSCH are continuous to support sending the first PUSCH through the second waveform.
  • the start symbol of the first PUSCH is after the start symbol of the second PUSCH, or the end symbol of the second PUSCH is before the start symbol of the first PUSCH.
  • (3) requires that the time domain position of the first PUSCH be located after the time domain position of the second PUSCH to ensure that sufficient time (such as a sufficient number of symbols) is available for switching the waveform of the first PUSCH.
  • the first PUSCH and the second PUSCH are located in the same available time unit, or the number of symbols closest to each other in the available time units of the first PUSCH and the second PUSCH does not exceed N1, and N1 is the default A positive integer greater than or equal to 1.
  • the time domain resources occupied by the first PUSCH and the time domain resources occupied by the second PUSCH are located in the same available time unit (for example, the available time unit includes the first available time unit) or, the first PUSCH
  • the time domain interval between the occupied time domain resources and the time domain resources occupied by the second PUSCH does not exceed a certain number of symbols (or available time resources) length, which can avoid the waveforms of two PUSCHs that are too far apart in the time domain. Interaction causes transmission performance degradation.
  • the first available time resource occupied by the first PUSCH includes symbols occupied by the first PUSCH on the first time slot.
  • the first part of the first available time unit includes symbols for the first PUSCH on the first time slot.
  • the second part of the first available time unit includes symbols for the second PUSCH on the first time slot.
  • the symbols and/or time slots included in the interval can be used for waveform switching.
  • the first available time resource occupied by the first PUSCH includes symbols occupied by the first PUSCH on the second time slot.
  • the first part of the first available time unit includes symbols for the first PUSCH on the second time slot.
  • the second part of the first available time unit includes symbols for the second PUSCH on the first time slot.
  • (1) to (6) are only examples of the first condition. In practical applications, at least one of (1) to (6) may be used as the first condition. If the first condition includes at least one of (1) to (6), the first condition is satisfied when at least one of (1) to (6) is satisfied.
  • the terminal device sends the first PUSCH in the first part of the first available time unit with the first waveform, and sends the first PUSCH with the second waveform in the second part of the first available time unit. Partially transmit the second PUSCH; and/or, after the first condition is not satisfied, the terminal device transmits the first PUSCH in the first waveform on at least one available time unit after the first available time unit. Therefore, after the first condition is not satisfied, the terminal device may still send the first PUSCH and the second PUSCH according to the waveform corresponding to the first information and/or the second information.
  • the first condition may not include (1).
  • the terminal device can carry the multi-layer transmission of the first PUSCH in multiple available time units respectively, so that there is only one layer in each available time unit. (or one data stream), and sends the PUSCH carried by multiple available time units in the second waveform.
  • the terminal equipment can map each data stream in the multi-stream transmission included in the first PUSCH to a time slot, that is, switch multi-stream data It is a single stream to support sending PUSCH using DFT-s-OFDM waveform to further improve the coverage effect.
  • the multiple streams can be carried repeatedly or sequentially in each single-stream transmission.
  • the first PUSCH carried in available time slot 1 includes a first data stream and a second data stream.
  • a possible way to send the first PUSCH according to the DFT-s-OFDM waveform is: in mode 1, the first data stream of the first PUSCH is repeatedly carried in available time slot 2, and the first data stream of the first PUSCH is repeatedly carried in available time slot 3.
  • One data stream; or, in method 2 the first data stream of PUSCH#1 is repeatedly carried in available time slot 2, and the second data stream of the first PUSCH is repeatedly carried in available time slot 3.
  • the terminal device may also report capability information to the network device to indicate that the terminal device supports dynamic switching waveforms.
  • S603 is not performed.
  • the network device can send activation information to the terminal device to activate the terminal device to dynamically switch waveforms. Therefore, the activation information can be sent before S601, S602 or S603.
  • the terminal device may stop executing S603.
  • the terminal equipment can use DFT-s-OFDM to send the first PUSCH without re-instructing the waveform used by the first PUSCH, so that the terminal equipment can Under the circumstances, waveforms can be switched flexibly and timely to enhance coverage and improve uplink transmission performance.
  • FIG. 9 shows a device 900 provided by an embodiment of the present application.
  • the device shown in FIG. 9 may be an implementation of a hardware circuit of the terminal device or network device shown in this application.
  • This device can be adapted to the flow chart shown above to perform the functions of the terminal device or network device in the above method embodiment.
  • Figure 9 shows only the main components of the device.
  • the device 900 shown in Figure 9 includes a communication interface 910, a processor 920 and a memory 930, where the memory 930 is used to store program instructions and/or data.
  • the processor 920 may cooperate with the memory 930.
  • Processor 920 may execute program instructions stored in memory 930 .
  • the processor 920 is configured to perform the method performed by the terminal device or the network device in any of the embodiments shown in FIG. 3 and FIG. 6 .
  • Memory 930 and processor 920 are coupled.
  • the coupling in the embodiment of this application is an indirect coupling or communication connection between devices, units or modules, which may be in electrical, mechanical or other forms, and is used for information interaction between devices, units or modules.
  • At least one of the memories 930 may be included in the processor 920 .
  • the communication interface may be a transceiver, a circuit, a bus, a module, or other types of communication interfaces.
  • the transceiver when the communication interface is a transceiver, the transceiver may include an independent receiver or an independent transmitter; it may also be a transceiver with integrated transceiver functions or a communication interface.
  • Apparatus 900 may also include communication lines 940.
  • the communication interface 910, the processor 920 and the memory 930 can be connected to each other through the communication line 940;
  • the communication line 940 can be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus or an extended industry standard architecture (extended industry standard architecture, EISA) bus, etc.
  • the communication line 940 can be divided into an address bus, a data bus, a control bus, etc. For ease of presentation, only one thick line is used in Figure 9, but it does not mean that there is only one bus or one type of bus.
  • An embodiment of the present application also provides a computer-readable storage medium, including instructions, which when run on a computer, The computer is caused to execute the method executed by the terminal device or the network device in any of the embodiments shown in FIG. 3 and FIG. 6 .
  • An embodiment of the present application also provides a computer program product, which includes computer instructions that, when run on a computer, cause the computer to execute the method executed by the terminal device or network device in any of the embodiments shown in FIG. 3 and FIG. 6 .
  • Embodiments of the present application also provide a chip system (which may also be called a chip), including: a processor, the processor is coupled to a memory, and the memory is used to store programs or instructions.
  • the chip system is caused to execute the method executed by the terminal device or the network device in any of the embodiments shown in FIG. 3 and FIG. 6 .
  • An embodiment of the present application also provides a communication system, including: a terminal device and a network device in any of the embodiments shown in FIG. 3 and FIG. 6 .
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, solid state disk (SSD)), etc.
  • the various illustrative logic units and circuits described in the embodiments of the present application can be implemented by general-purpose processors, digital signal processors, application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs) or other programmable logic devices, discrete Gate or transistor logic, discrete hardware components, or any combination of the foregoing are designed to implement or operate the functions described.
  • the general-purpose processor may be a microprocessor.
  • the general-purpose processor may also be any conventional processor, controller, microcontroller or state machine.
  • a processor may also be implemented as a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration. accomplish.
  • the above functions described in this application may be implemented in hardware, software, firmware, or any combination of the three. If implemented in software, these functions may be stored on a computer-readable medium, or transmitted on a computer-readable medium in the form of one or more instructions or code.
  • Computer-readable media includes computer storage media and communications media that facilitate transfer of a computer program from one place to another. Storage media can be any available media that can be accessed by a general purpose or special purpose computer.
  • Such computer-readable media may include, but is not limited to, RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other device that may be used to carry or store instructions or data structures and Other media containing program code in a form readable by a general-purpose or special-purpose computer, or by a general-purpose or special-purpose processor.
  • any connection may be properly defined as a computer-readable medium, for example, if the software is transferred from a website, server, or other remote source to a computer over a coaxial cable, fiber optic cable, twisted pair cable, or digital subscriber line (DSL) Or transmitted by wireless means such as infrared, wireless and microwave are also included in the definition of computer-readable media.
  • DSL digital subscriber line
  • the discs and discs include compressed discs, laser discs, optical discs, digital versatile discs (English: Digital Versatile Disc, DVD for short), floppy disks and Blu-ray discs. Disks usually copy data magnetically, and Discs usually use lasers to optically copy data. Combinations of the above can also be included in In a computer-readable medium.
  • Computer-readable media includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • Storage media can be any available media that can be accessed by a general purpose or special purpose computer.

Landscapes

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

Abstract

本申请涉及通信方法及装置。该方法包括UE接收网络设备的第一信息,第一信息指示UE在第1个可用时间单元发送或能发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送或能重复发送第一PUSCH。UE以第一波形,在第1个可用时间单元发送第一PUSCH。UE接收网络设备的第二信息,以第二波形,在第M个可用时间单元发送第一PUSCH。第二信息与第二波形相关。第一波形采用CP-OFDM,第二波形采用DFT-s-OFDM。N为大于1的整数,M为大于1且小于等于N的整数。UE在第M个可用时间单元即可切换波形,实现灵活、及时。

Description

一种通信方法及装置
相关申请的交叉引用
本申请要求在2022年04月16日提交中华人民共和国知识产权局、申请号为202210400397.8、申请名称为“一种动态波形的确定方法、网络设备、终端设备”的中国专利申请的优先权,其全部内容通过引用结合在本申请中;本申请要求在2022年06月02日提交中华人民共和国知识产权局、申请号为202210625754.0、申请名称为“一种通信方法及装置”的中国专利申请中除上述申请号为202210400397.8的全部内容以外的其他部分内容的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信技术领域,尤其涉及一种通信方法及装置。
背景技术
第五代移动通信技术(5th generation mobile communication technology,5G)新空口(new radio,NR)系统支持的上行传输波形包括采用带循环前缀的正交频分复用(cyclic prefix-orthogonal frequency division multiplexing,CP-OFDM)的波形和采用离散傅里叶变换扩频的正交频分复用(discrete Fourier transform-spread-orthogonal frequency division multiplexing,DFT-s-OFDM)的波形两种。其中,CP-OFDM一般用于离基站较近的情况,这种情况下信道较好,可以采用多输入多输出(multiple input multiple output,MIMO)技术传输多个数据流,达到高吞吐的效果。DFT-s-OFDM一般用于离基站较远的情况,由于DFT-s-OFDM的波形的峰均比低,能够采用更高的平均功率发送,从而达到较好的覆盖。
发明内容
终端设备(也可称为用户设备,UE,user equipment)受限于经济成本,相较于基站而言,其上行传输的覆盖范围较小,因此需要从经济成本以外的方面,提高终端设备在上行传输的覆盖范围。UE上行传输所用的波形一般是由基站按照预设的周期配置的。比如,通过无线资源控制RRC(radio resource control,RRC)信令的更新来配置。在没有接收到更新波形(也可称为切换波形)的RRC信令时,UE就无法切换上行传输所用的波形,这样可能导致UE切换波形所需的时延较大。此时,UE就会按照原有配置,继续在后续的几个上行时隙上以原有配置的波形重复发送。这样会占用较多的时频资源,导致其他UE无法使用这些视频资源。另外,这样也无法及时地切换UE上行传输采用的波形。
在一些场景下,单独依靠更新波形的RRC信令不能很好地满足需求。比如,UE向远离基站的方向移动,在UE移动一定距离后,UE之前被配置的采用CP-OFDM的波形不再适用于当前,需要切换到采用DFT-s-OFDM的波形以提升覆盖。然而,由于RRC信令的周期较长,此时还未达到RRC信令的周期,只能继续以原有配置的波形发送,不够灵活、及时。
因此,如何灵活、及时地切换UE上行传输的波形,提高UE上行传输的覆盖范围, 是我们需要解决的问题。
为了解决上述的技术问题,本申请提供一种通信方法及装置,根据来自基站的第二信息的指示,使UE及时地切换波形,从而使得UE灵活、及时地增强UE上行传输的覆盖范围。
第一方面,提供一种通信方法。该方法包括:终端设备接收到来自网络设备的第一信息。第一信息指示终端设备在第1个可用时间单元发送或能够发送第一物理上行共享信道PUSCH(Physical uplink shared channel,PUSCH)在第2个可用时间单元至第N个可用时间单元重复发送或能够重复发送第一PUSCH。终端设备以第一波形,在第1个可用时间单元发送第一PUSCH。终端设备接收到来自网络设备的第二信息。终端设备以第二波形,在第M个可用时间单元发送所述第一PUSCH。其中,第二波形与第二信息相关。第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形。第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,第二波形是使能转换预编码的波形。可用时间单元用于终端设备发送上行信号。N为大于1的正整数,M为大于1且小于或等于N的正整数。
这样,终端设备可以响应在第二信息在第M个可用时间单元开始进行波形的动态切换,而不需要等待第一PUSCH的重复传输完成再进行波形切换,可以灵活、及时地实现波形切换,从而使得终端设备灵活、及时地增强覆盖范围,提高上行传输性能。
其中,终端设备接收到来自网络设备的第一信息。第一信息指示终端设备在第1个可用时间单元发送或能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送或能够重复发送第一PUSCH,包括:
(1)终端设备接收到来自网络设备的第一信息。第一信息指示终端设备在第1个可用时间单元发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送第一PUSCH;和,
(2)终端设备接收到来自网络设备的第一信息。第一信息指示终端设备在第1个可用时间单元能够发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元重复能够重复发送第一PUSCH。
根据第一方面,终端设备接收到来自网络设备的第二信息,包括:终端设备在第一时间单元接收到来自网络设备的所述第二信息;
终端设备以第二波形,在第M个可用时间单元发送第一PUSCH,包括:终端设备根据第二信息,确定第二波形;终端设备根据第一时间单元以及第一参数,确定第M个可用时间单元;终端设备在第M个可用时间单元,以第二波形发送第一PUSCH;其中,第一参数是终端设备根据预先配置的第二参数确定的。
可选地,第一时间单元可早于、晚于或等在第1个可用时间单元,本申请对此不做限制。
根据第一方面以及第一方面中的任意一项,该方法包括:终端设备在第M个可用时间单元启动第一联合信道估计窗口。
这样,终端设备可以在进行波形切换后启动新的联合信道估计窗口,避免采用不同波形的PUSCH进行联合信道估计,从而提高信道估计可靠性,增强覆盖范围,提高传输性能。
根据第一方面以及第一方面中的任意一项,在第一联合信道估计窗口结束后,终端设 备恢复以第一波形发送,并启动第二联合信道估计窗口。
这样,能够随着波形切换,灵活地进行联合信道估计,从而提高信道估计可靠性,增强覆盖范围,提高传输性能。
根据第一方面以及第一方面中的任意一项,在第一联合信道估计窗口中,响应于到来自网络设备的第三信息,终端设备以第一波形发送,并启动第二联合信道估计窗口。
根据第一方面以及第一方面中的任意一项,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
可选地,单个可用时间单元跨域至少两个时隙,包括:单个可用时间单元包含前一时隙的后部分和后一时隙的前部分;或者,单个可用时间单元包含前一时隙的全部和后一时隙的前部分;或者,单个可用时间单元包含前一时隙的全部和后一时隙的全部;或者,单个可用时间单元包含前一时隙的后部分和后一时隙的前部分;或者,单个可用时间单元包含前两个时隙的全部和后一时隙的前部分等。当然,单个可用时间单元跨域至少两个时隙还可拥有更多的方式,本申请对此不做限定。
根据第一方面以及第一方面中的任意一项,可用时间单元包括可用时隙,可用时隙包括以下的至少一种:上行时隙和特殊时隙。
从种类方面,对可用时间单元进行限定。其中,特殊时隙可被用作上行时隙使用。
根据第一方面以及第一方面中的任意一项,第一信息还指示终端设备以第一波形发送第一PUSCH。
根据第一方面以及第一方面中的任意一项,该方法还包括:终端设备根据第二信息确定第一长度,第一联合信道估计窗口的长度是至少根据第一长度确定的。
根据第一方面以及第一方面中的任意一项,在第一信息指示终端设备在第1个可用时间单元发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送所述第一PUSCH时,第一信息包括第一下行指示信息DCI(downlink control information,DCI)。
根据第一方面以及第一方面中的任意一项,在第一信息指示终端设备在第1个可用时间单元能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元能够重复发送第一PUSCH时,第一信息包括第一信令,第一信令还指示第一波形。
根据第一方面以及第一方面中的任意一项,第一信令包括无线资源控制RRC信令。
根据第一方面以及第一方面中的任意一项,根据第二信息确定的第二频域资源,与第一PUSCH所占用的第一频域资源相同;根据第二信息确定的在一个时隙中的起始符号与持续符号个数,分别与第一PUSCH所占用的在一个时隙中的起始符号与持续符号个数相同。
根据第一方面以及第一方面中的任意一项,第1个可用时间单元至第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元存在间隔;或者,第1个可用时间单元至第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元彼此相邻;其中,i为大于或等于1,且小于或等于(N-1)的正整数。
第二方面,提供一种通信方法。该方法包括:网络设备向终端设备发送第一信息,第一信息指示终端设备在第1个可用时间单元发送或能够发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送或能够重复发送第一PUSCH。网络设备向终端设备发送第二信息,第二信息指示切换为第二波形或切换波形。网络设备在第M个可用时间 单元上,以第二波形接收来自终端设备的第一PUSCH。其中,第二波形与第二信息相关。第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,第二波形是使能转换预编码的波形。可用时间单元用于终端设备发送上行信号。N为大于1的正整数,M为大于1且小于或等于N的正整数。
这样,网络设备通过向终端设备发送第二信息,使得终端设备及时地在第M个可用时间单元进行波形的动态切换,并在第M个可用时间单元上以第二波形接收来自终端设备的第一PUSCH,实现灵活、及时地通知波形切换,以及实现波形切换后的灵活、及时地接收,无需等待重复发送结束后即可使得终端设备波形切换,从而实现灵活、及时、动态地波形切换,使得终端设备增强覆盖范围,并灵活、及时地接收终端设备发送的第一PUSCH,提高传输效果。
根据第二方面,在所述第一信息指示终端设备在第1个可用时间单元发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送所述第一PUSCH时,第一信息包括第一下行指示信息DCI。
根据第二方面以及第二方面中的任意一项,在网络设备向终端设备发送第一信息之前,该方法包括:网络设备向终端设备发送第一信令,第一信令指示第一波形,第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形。
根据第二方面以及第二方面中的任意一项,第一信令包括无线资源控制RRC信令。
根据第二方面以及第二方面中的任意一项,在第一信息指示终端设备在第1个可用时间单元能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元能够重复发送第一PUSCH时,第一信息包括第一信令,第一信令还指示第一波形,第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形。
根据第二方面以及第二方面中的任意一项,第一信令包括无线资源控制RRC信令。
根据第二方面以及第二方面中的任意一项,网络设备向终端设备发送第二信息,包括:网络设备在第一时间单元,向终端设备发送第二信息。
网络设备在第M个可用时间单元上,以第二波形接收来自终端设备的第一PUSCH,包括:网络设备根据第一时间单元以及第一参数,确定第M个可用时间单元。网络设备在第M个可用时间单元,以第二波形接收来自终端设备的第一PUSCH。其中,第一参数是网络设备根据预先配置的第二参数确定的。
根据第二方面以及第二方面中的任意一项,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
根据第二方面以及第二方面中的任意一项,可用时间单元包括可用时隙,可用时隙包括以下的至少一种:上行时隙和特殊时隙。
根据第二方面以及第二方面中的任意一项,通过第二信息指示的第二频域资源,与第一PUSCH所占用的第一频域资源相同。通过第二信息指示的在一个时隙中的起始符号与持续符号个数,分别与第一PUSCH所占用的在一个时隙中的起始符号与持续符号个数相同。
根据第二方面以及第二方面中的任意一项,第1个可用时间单元至第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元存在间隔;或者,第1个可用时间单元至第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元彼此相邻。 其中,i为大于或等于1,且小于或等于(N-1)的正整数。
第三方面,提供一种通信方法。该方法包括:终端设备接收到第一信息,第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一物理上行共享信道PUSCH;或者,终端设备接收到第一信令和第一信息,第一信令指示第一波形,第一信息指示终端设备,在第一可用时间资源上发送第一物理上行共享信道PUSCH。第一可用时间资源包括N1个可用时间单元,N1个可用时间单元包括第一可用时间单元的第一部分。终端设备接收到第二信息,第二信息指示终端设备以第二波形,在第二可用时间资源上发送第二PUSCH。第二可用时间资源包括N2个可用时间单元,N2个可用时间单元包括第一可用时间单元的第二部分。在第一条件得到满足后,终端设备以第二波形,在第一可用时间单元的第一部分发送第一PUSCH,在第一可用时间单元的第二部分发送第二PUSCH。其中,第二波形与第二信息相关;第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形。第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,第二波形是使能转换预编码的波形。可用时间单元用于终端设备发送上行信号。N1、N2均为大于或等于2的正整数。
这样,在第一条件得到满足后,终端设备可以采用DFT-s-OFDM发送第一PUSCH而不需要重新指示第一PUSCH采用的波形,从而使得终端设备在此情形下,可以灵活、及时地切换波形,增强覆盖范围,提高上行传输性能。
根据第三方面,该方法包括:在第一条件得到满足后,终端设备以第二波形,在第一可用时间单元后的至少一个可用时间单元上发送第一PUSCH。
根据第三方面以及第三方面中的任意一项,该方法包括:在第一条件没有得到满足后,终端设备以第一波形,在第一可用时间单元的第一部分发送第一PUSCH;终端设备以第二波形,在第一可用时间单元的第二部分发送第二PUSCH。
根据第三方面以及第三方面中的任意一项,该方法包括:在第一条件没有得到满足后,终端设备以第一波形,在第一可用时间单元后的至少一个可用时间单元上发送第一PUSCH。
根据第三方面以及第三方面中的任意一项,第一条件包括以下的至少一项:
(1)第一PUSCH采用单层传输;
(2)第一PUSCH占用的物理资源块PRB为连续的资源块;
(3)第一PUSCH的起始符号在第二PUSCH的起始符号之后,或者,第二PUSCH的结束符号位在第一PUSCH起始符号之前;
(4)第一PUSCH与第二PUSCH位于相同的可用时间单元,或者,第一PUSCH与第二PUSCH两者各自位于的可用时间单元中间隔最近的符号个数,不超过N1,N1为预设的且大于或等于1的正整数;
(5)存在第一时隙,使得接收到第二信息的符号,与第一时隙上第一PUSCH的间隔符号数大于M1,M1是预设的;
(6)存在第二时隙,使得接收到第二信息的时隙,与第二时隙上第一PUSCH的间隔时隙数大于M2,M2是预设的。
根据第三方面以及第三方面中的任意一项,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
根据第三方面以及第三方面中的任意一项,可用时间单元包括可用时隙,可用时隙包括以下的至少一种:上行时隙和特殊时隙。
根据第三方面以及第三方面中的任意一项,第一部分与第二部分互不重合。
第四方面,提供一种通信方法。该方法包括:网络设备发送第一信息,第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一PUSCH;或者,网络设备发送第一信令和第一信息,第一信令用于指示第一波形,第一信息指示终端设备在第一可用时间资源上发送第一物理上行共享信道PUSCH。第一可用时间资源包括N1个可用时间单元,N1个可用时间单元包括第一可用时间单元的第一部分。网络设备发送第二信息,第二信息指示终端设备以第二波形,在第二可用时间资源上发送第二PUSCH。第二可用时间资源包括N2个可用时间单元,N2个可用时间单元包括所述第一可用时间单元的第二部分。在第一条件得到满足后,网络设备以第二波形,在第一可用时间单元接收第一PUSCH。其中,第二波形与第二信息相关。第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形。第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,第二波形是使能转换预编码的波形。可用时间单元用于网络设备接收上行信号;N1、N2均为大于或等于2的正整数。
这样,在第一条件得到满足后,网络设备基于预设的规则,以对应的波形,灵活、及时地接收来自终端设备的第一PUSCH,无需重新指示终端设备此时采取的波形,并灵活、及时地接收来自终端设备的第一PUSCH,提高传输效果。
根据第四方面,该方法包括:在第一条件得到满足后,网络设备以第二波形,在第一可用时间单元后的至少一个可用时间单元上接收第一PUSCH。
根据第四方面以及第四方面中的任意一项,该方法包括:在第一条件没有得到满足后,网络设备以第一波形,在第一可用时间单元上接收第一PUSCH。
根据第四方面以及第四方面中的任意一项,该方法包括:在第一条件没有得到满足后,网络设备以第一波形,在第一可用时间单元后的至少一个可用时间单元上接收第一PUSCH。
根据第四方面以及第四方面中的任意一项,第一条件包括以下的至少一项:
(1)第一PUSCH采用单层传输;
(2)第一PUSCH占用的物理资源块PRB为连续的资源块;
(3)第一PUSCH的起始符号在第二PUSCH的起始符号之后,或者,第二PUSCH的结束符号位在第一PUSCH起始符号之前;
(4)第一PUSCH与第二PUSCH位于相同的可用时间单元,或者,第一PUSCH与第二PUSCH两者各自位于的可用时间单元中间隔最近的符号个数,不超过N1,N1为预设的且大于或等于1的正整数;
(5)存在第一时隙,使得接收到第二信息的符号,与第一时隙上第一PUSCH的间隔符号数大于M1,M1是预设的;
(6)存在第二时隙,使得接收到第二信息的时隙,与第二时隙上第一PUSCH的间隔时隙数大于M2,M2是预设的。
根据第四方面以及第四方面中的任意一项,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
根据第四方面以及第四方面中的任意一项,可用时间单元包括可用时隙,可用时隙包括以下的至少一种:上行时隙和特殊时隙。
根据第四方面以及第四方面中的任意一项,在第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一PUSCH时,第一信息包括无线资源控制RRC信令。
根据第四方面以及第四方面中的任意一项,在第一信息指示终端设备在第一可用时间资源上发送第一物理上行共享信道PUSCH时,第一信息包括第一下行指示信息DCI,第一信令包括无线资源控制RRC信令。
根据第四方面以及第四方面中的任意一项,第一部分与第二部分互不重合。
第五方面,提供一种终端设备。该终端设备包括处理器和耦合至处理器的存储器。存储器存储有计算机程序。当计算机程序被处理器执行时,使得终端设备执行上述的第一方面或第一方面中的任意一项、第三方面或第三方面中的任意一项所述的方法。
第五方面及第五方面中任意一种实现方式所对应的技术效果可参见上述第一方面及第一方面中任意一种实现方式、上述第三方面及第三方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第六方面,提供一种网络设备。该网络设备包括处理器和耦合至处理器的存储器。存储器存储有计算机程序。当计算机程序被处理器执行时,使得网络设备执行上述的第二方面或第二方面中的任意一项、第四方面或第四方面中的任意一项所述的方法。
第六方面及第六方面中任意一种实现方式所对应的技术效果可参见上述第二方面及第二方面中任意一种实现方式、上述第四方面及第四方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第七方面,提供一种芯片。该芯片包括处理器和耦合至处理器的存储器。存储器存储有计算机程序。芯片位于终端设备内。当处理器执行计算机程序时,使得终端设备执行上述的第一方面或第一方面中的任意一项、第三方面或第三方面中的任意一项所述的方法。
第七方面及第七方面中任意一种实现方式所对应的技术效果可参见上述第一方面及第一方面中任意一种实现方式、上述第三方面及第三方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第八方面,提供一种芯片。该芯片包括处理器和耦合至处理器的存储器。存储器存储有计算机程序。芯片位于网络设备内。当处理器执行计算机程序时,使得网络设备执行上述的第二方面或第二方面中的任意一项、第四方面或第四方面中的任意一项所述的方法。
第八方面及第八方面中任意一种实现方式所对应的技术效果可参见上述第二方面及第二方面中任意一种实现方式、上述第四方面及第四方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第九方面,提供一种计算机可读存储介质。该介质存储有计算机程序。当计算机程序在终端设备上运行时,使得终端设备执行上述的第一方面或第一方面中的任意一项、第三方面或第三方面中的任意一项所述的方法。
示例性地,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。以此为例但不限于:计算机可读介质可以包括非瞬态计算机可读介质、随机存取存储器(random-access memory,RAM)、只读存储器(read-only memory,ROM)、电可擦除可编程只读存储器(electrically electrically programmable read-only memory,EEPROM)、CD-ROM或其他光盘存储、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质。
第九方面及第九方面中任意一种实现方式所对应的技术效果可参见上述第一方面 及第一方面中任意一种实现方式、上述第三方面及第三方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第十方面,提供一种计算机可读存储介质。该介质存储有计算机程序。当计算机程序在网络设备上运行时,使得网络设备执行上述的第二方面或第二方面中的任意一项、第四方面或第四方面中的任意一项所述的方法。
第十方面及第十方面中任意一种实现方式所对应的技术效果可参见上述第二方面及第二方面中任意一种实现方式、上述第四方面及第四方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第十一方面,提供一种计算机程序产品。该计算机程序产品存储在计算机可读存储介质上。在计算机程序产品在终端设备上运行时,使得终端设备执行上述的第一方面或第一方面中的任意一项、第三方面或第三方面中的任意一项所述的方法。
第十一方面及第十一方面中任意一种实现方式所对应的技术效果可参见上述第一方面及第一方面中任意一种实现方式、上述第三方面及第三方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第十二方面,提供一种计算机程序产品。该计算机程序产品存储在计算机可读存储介质上。在计算机程序产品在网络设备上运行时,使得网络设备执行上述的第二方面或第二方面中的任意一项、第四方面或第四方面中的任意一项所述的方法。
第十二方面及第十二方面中任意一种实现方式所对应的技术效果可参见上述第二方面及第二方面中任意一种实现方式、上述第四方面及第四方面中任意一种实现方式所对应的技术效果,此处不再赘述。
第十三方面,提供一种通信系统。该通信系统包括网络设备和终端设备,终端设备用于执行上述的第一方面或第一方面中的任意一项、第三方面或第三方面中的任意一项所述的方法,网络设备用于执行上述的第二方面或第二方面中的任意一项、第四方面或第四方面中的任意一项所述的方法。
第十三方面及第十三方面中任意一种实现方式所对应的技术效果可参见上述第一方面及第一方面中任意一种实现方式、上述第二方面及第二方面中任意一种实现方式、上述第三方面及第三方面中任意一种实现方式、上述第四方面及第四方面中任意一种实现方式所对应的技术效果,此处不再赘述。
附图说明
图1为本申请提供的一种无线通信系统的架构示意图;
图2A为本申请提供的一种无线通信场景的架构示意图;
图2B为本申请提供的一种联合信道估计的窗口示意图;
图3为本申请提供的一种通信方法的流程示意图;
图4为本申请提供的一种通信方法的时域关系示意图;
图5为本申请提供的另一种联合信道估计的窗口示意图;
图6为本申请提供的另一种通信方法的流程示意图;
图7为本申请提供的第一可用时间单元中的第一部分与第二部分之间的时域关系示意图;
图8为本申请提供的多流数据切换波形时的传输方式示意图;
图9为本申请提供的一种通信装置的结构示意图。
具体实施方式
本申请实施例提供一种数据传输方法及装置。其中,方法和装置是基于同一发明构思的,由于方法及装置解决问题的原理相似,因此装置与方法的实施可以相互参见,重复之处不再赘述。本申请实施例的描述中,“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。字符“/”一般表示前后关联对象是一种“或”的关系。本申请中所涉及的至少一个是指一个或多个;多个,是指两个或两个以上。另外,需要理解的是,在本申请的描述中,“第一”、“第二”等词汇,仅用于区分描述的目的,而不能理解为指示或暗示相对重要性,也不能理解为指示或暗示顺序。
本申请实施例提供的数据传输方法可以应用在第四代(4th generation,4G)通信系统,例如长期演进(long term evolution,LTE)通信系统,也可以应用在第五代(5th generation,5G)通信系统,例如5G新空口(new radio,NR)通信系统,或应用于未来的各种通信系统,例如第六代(6th generation,6G)通信系统。本申请实施例提供的方法还可以应用于蓝牙系统、WiFi(wireless fidelity)系统、LoRa(Long Rang)系统或车联网系统中。本申请实施例提供的方法还可以应用于卫星通信系统其中,所述卫星通信系统可以与上述通信系统相融合。
为了便于理解本申请实施例,以图1所示的通信系统架构为例对本申请使用的应用场景进行说明。参阅图1所示,通信系统100包括网络设备101和终端设备102。本申请实施例提供的装置可以应用到网络设备101,或者应用到终端设备102。可以理解的是,图1仅示出了本申请实施例可以应用的一种可能的通信系统架构,在其他可能的场景中,所述通信系统架构中也可以包括其他设备。
网络设备101为无线接入网(radio access network,RAN)中的节点,又可以称为基站,还可以称为接入网设备,如RAN节点(或设备)。目前,一些接入网设备的举例包括但不限于:gNB/NR-NB、传输接收点(transmission reception point,TRP)、演进型节点B(evolved Node B,eNB)、无线网络控制器(radio network controller,RNC)、节点B(Node B,NB)、基站控制器(base station controller,BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如,home evolved NodeB,或home Node B,HNB)、基带单元(base band unit,BBU)或无线保真(wireless fidelity,Wifi)接入点(access point,AP)卫星设备,或5G通信系统中的网络设备,或者未来可能的通信系统中的网络设备。网络设备101还可以是其他具有网络设备功能的设备,例如,网络设备101还可以是设备到设备(device to device,D2D)通信、车联网通信、机器通信中担任网络设备功能的设备。网络设备101还可以是未来可能的通信系统中的网络设备。
在一些部署中,gNB可以包括集中式单元(centralized unit,CU)和分布式单元(distributed unit,DU)。gNB还可以包括射频单元(radio unit,RU)。CU实现gNB的部分功能,DU实现gNB的部分功能,比如,CU实现无线资源控制(radio resource control,RRC)分组数据汇聚层协议(packet data convergence protocol,PDCP)层的功能,DU实现无线链路控制(radio link control,RLC)、媒体接入控制(media access control,MAC)和物理(physical,PHY)层的功能。由于RRC层的信息最终会变成PHY层的信息,或者, 由PHY层的信息转变而来,因而在这种架构下,高层信令,如RRC层信令或PHCP层信令,也可以认为是由DU发送的,或者,由DU+RU发送的。可以理解的是,网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外,CU可以划分为接入网RAN中的网络设备,也可以将CU划分为核心网CN中的网络设备,在此不做限制。
终端设备102,又可以称之为用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)等,是一种向用户提供语音或数据连通性的设备,也可以是物联网设备。例如,终端设备包括具有无线连接功能的手持式设备、车载设备等。目前,终端设备可以是:手机、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device,MID)、可穿戴设备(例如智能手表、智能手环、计步器等)车载设备(例如,汽车、自行车、电动车、飞机、船舶、火车、高铁等)、虚拟现实(virtual reality,VR)设备、增强现实(augmented reality,AR)设备、工业控制中的无线终端、智能家居设备(例如,冰箱、电视、空调、电表等)、智能机器人、车间设备、无人驾驶中的无线终端、远程手术中的无线终端、智能电网(smart grid)中的无线终端、运输安全中的无线终端、智慧城市中的无线终端,或智慧家庭中的无线终端、飞行设备(例如,智能机器人、热气球、无人机、飞机)等。终端设备还可以是其他具有终端功能的设备,例如,终端设备还可以是D2D通信中担任终端功能的设备。本申请中将具有无线收发功能的终端设备及可设置于前述终端设备的芯片统称为终端设备。
下面结合图1所示的通信系统,对本申请实施例提供的数据传输方法做详细说明。
为了更好的理解本申请实施例提供的方案,以下先对本申请实施例涉及到的一些术语、概念或流程进行介绍。
(1)上行传输所采用的波形:
波形可理解为上行数据频域上的信号包络。
在长期演进(long term evolution,LTE)系统,上行数据传输时仅支持采用DFT-s-OFDM的波形(以下简称DFT-s-OFDM波形)而在5G新无线(new radio,NR)系统中,引入了采用循环前缀正交频分复用(cyclic prefix orthogonal frequency division multiplexing,CP-OFDM)的波形(以下简称CP-OFDM波形)即NR系统支持采用DFT-s-OFDM的波形或者CP-OFDM的波形进行上行数据传输。
其中,CP-OFDM波形信噪比较低,一般用于离基站较近的情况,这种情况下信道较好,可以采用MIMO技术传输多个数据流,达到高吞吐的效果。DFT-s-OFDM波形信噪比较高,一般用于离基站较远的情况,由于DFT-s-OFDM的波形的峰均比低,能够采用更高的平均功率发送,从而达到较好的覆盖。
(2)上行传输所采用的波形的配置方式:
配置上行传输所采用的波形的示例方式包括,在建立RRC连接后,网络设备在需要修改终端发送上行数据的波形时,可以通过RRC连接重配置(RRC connection reconfiguration)信令来指示修改后的终端发送上行数据的波形。比如,可以通过RRC connection reconfiguration信令中物理上行共享信道(physical uplink shared channal,PUSCH)控制(pusch-config)字段中的波形设置(transformPrecoder)参数,来指示修改后的波形。其中,transformPrecoder参数的可选值为使能(enabled)或去使能(disabled)。示例性地,当该参数的值为enabled时,表示修改后的波形为DFT-s-OFDM波形。当该参数的值为disable时,表示修改后的波形为CP-OFDM波形。如果RRC connection reconfiguration信 令中没有pusch-config信息,或者RRC connection reconfiguration信令有pusch-config字段但是pusch-config字段中没有transformPrecoder,则表示波形没有发生变化,沿用之前的波形。
可选地是,网络设备可根据接收到的上行信号的情况,比如信号强度或上行传输的成功率等方面估计UE的上行信道情况,当上行信道不佳的情况下,网络设备发送配置信息,UE根据上述配置信息确定后续上行数据传输所用的波形为DFT-s-OFDM。
(3)覆盖增强:
在通信系统中,存在基站到UE的下行传输和UE到基站的上行传输,由于基站成本相对较高,下行传输的覆盖范围一般会高于上行传输的覆盖范围。由于UE侧成本限制因素,只能使用较廉价的功率放大器,其功率上限也相对基站侧要低,因此覆盖增强的研究主要集中于如何提高上行传输的覆盖范围。
上行传输所涉及到的一个场景就是终端设备向远离基站的方向移动,如图2A所示,终端设备在向远离基站的方向移动时,逐渐移出基站的CP-OFDM的波形的覆盖区域。这种情况下,原配置的CP-OFDM的波形会在一定距离后不再适用于当前的波形,从而需要切换波形到DFT-s-OFDM以提升覆盖。为了避免通过配置信息切换波形带来的延迟,有需求研究动态的波形切换以减少切换时延。
(4)联合信道估计(joint channel estimation)或称为联合信道测量:
5G NR中上行数据采用PUSCH信道承载,为了提高PUSCH信道的性能,可通过PUSCH的时域重复来提升其覆盖效果。在时域上重复的同时,每次重复携带的解调参考信号(demodulation reference signal,DMRS)在同一个频域位置时,可以联合各次重复上的DMRS信号进行联合信道估计,从而达到更加精准的估计信道的效果。通过更精确的信道估计,也能提升PUSCH信道的覆盖情况。如图2B所示,时隙1和时隙2分别以同样的波形承载PUSCH1和PUSCH2,其中,PUSCH2可以是PUSCH1的重复传输,因此可以对时隙1和时隙2采用联合信道估计以提升覆盖效果。
采用联合信道测量的窗口来衡量进行联合信道测量的时隙范围,可以从首次PUSCH传输开始,直到某个时隙结束。结束的原因可以是遇到下行传输、或者其他传输。这种情况下,可以在下行传输之后重启一个联合信道测量的窗口。因此,在PUSCH重复传输的场景,如果中间出现下行时隙,下行时隙作为一种影响联合信道估计的因素,使得下行时隙之后的首个PUSCH传输位置重启一个联合信道估计的窗口。
基于以上对于上行传输所采用的波形及波形的配置方式的介绍,在上行传输中,终端设备的上行传输所采用波形是网络设备通过RRC信令指示的,而RRC信令的更新周期较长,导致终端设备无法灵活、及时地进行波形切换,比如在一个RRC信令周期内,就不能切换波形,从而导致终端设备的切换波形不够灵活、及时,无法灵活、及时地增强覆盖范围,提高上行传输性能。
本申请实施例提供一种通信方法,根据来自基站的第二信息的指示,使UE及时地切换波形,从而使得UE灵活、及时地增强UE上行传输的覆盖范围。该通信方法可由网络设备和终端设备实施。示例性地,网络设备可包括图1所示网络设备101,终端设备可包括图1所示终端设备102。可以理解的是,本申请中由网络设备执行的动作也可由网络设备中的组件(如芯片、模块或者电路等)执行,和/或,本申请中由终端设备执行的动作可 以由终端设备中的组件(如芯片、模块或者电路等)执行。
本申请实施例提供的一种通信方法,可用于在重复传输场景中灵活、及时地改变UE上行传输的波形。示例性地,如图3所示,该方法可包括以下步骤:
S300、网络设备发送第一信息,该第一信息指示终端设备在第1个可用时间单元发送或能够发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送或能够重复发送该第一PUSCH。其中,N为大于1的正整数。
可选地,第一信息可包括下行控制信息(download control information,DCI)。
可选地,第一信息可包括第一信令。第一信令可以是RRC信令。
下面将结合S301对第一信息可能的实现方式进行介绍。
相应地,终端设备接收第一信息。
S301、终端设备以第一波形,在第1个可用时间单元发送第一PUSCH。
其中,可用时间单元用于终端设备发送上行信号(比如,PUSCH)。
可选地,单个可用时间单元可跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
其中,单个可用时间单元跨域至少两个时隙,包括:单个可用时间单元包含前一时隙的后部分和后一时隙的前部分;或者,单个可用时间单元包含前一时隙的全部和后一时隙的前部分;或者,单个可用时间单元包含前一时隙的全部和后一时隙的全部;或者,单个可用时间单元包含前一时隙的后部分和后一时隙的前部分;或者,单个可用时间单元包含前两个时隙的全部和后一时隙的前部分等。当然,单个可用时间单元跨域至少两个时隙还可拥有更多的方式,本申请对此不做限定。
示例性地,可用时间单元可以包括时隙、符号(或称为OFDM符号)、多个时隙的组合、多个符号的组合、至少一个时隙与至少一个符号的组合,或者可以是绝对时间长度等可用于代表一段时间的时间单位,本申请对此不做限定。
可以理解的是,本申请中的时隙可包括上行时隙、下行时隙和特殊时隙。其中,上行时隙用于上行传输;下行时隙用于下行传输;特殊时隙可用于进行上行传输和/或下行传输。其中,对于终端设备来说,上行发送过程中的可用时间单元包括上行时隙和特殊时隙。
可以理解,任意两个可用时间单元在时域上可以是相邻或不相邻的,即便是序号相邻的可用时间单元也是如此。比如,第1个可用时间单元至所述第N个可用时间单元中,第i个可用时间单元和第(i+1)个可用时间单元存在间隔,或者,第i个可用时间单元和第(i+1)个可用时间单元彼此相邻。其中,i为大于或等于1,且小于或等于(N-1)的正整数。例如,i=1时,第1个可用时间单元与第2个可用时间单元可以相邻或不相邻。又例如,i=N-1时,第(N-1)个可用时间单元与第N个可用时间单元可以相邻或不相邻。
其中,序号较小的可用时间单元的时域位置位于序号较大的可用时间单元的时域位置之前。例如,第1个可用时间单元的时域位置在第2个可用时间单元的时域位置之前。同理,第(N-1)个可用时间单元的时域位置在第N个可用时间单元的时域位置之前。上述的第1个可用时间单元、第2个可用时间单元、第(N-1)个可用时间单元和第N个可用时间单元仅为示例性地。
可选地,第一波形为CP-OFDM波形,第二波形为DFT-s-OFDM波形。另外,CP-OFDM波形也称为未使能转换预编码(transform precoding)的波形,DFT-s-OFDM波形也称为使 能转换预编码的波形。可以理解,终端设备是否使能转换预编码可由网络设备通过RRC信令、MAC CE或DCI等信令配置。如果配置为使能转换预编码,则终端设备可确定采用DFT-s-OFDM波形进行上行传输;如果配置为未使能转换预编码,则终端设备可确定采用CP-OFDM波形进行上行传输。需要说明的是,本申请中的RRC信令不是物理层信令,而是MAC层信令。
可选地,响应于终端设备接收来自网络设备的第一信息,终端设备以第一波形在第1个可用时间单元上发送第一PUSCH。
可选地,在第一信息用于指示终端设备在第1个可用时间单元上发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元上重复发送第一PUSCH时,第一信息可以为第一DCI。另外,终端设备在接收到第一信息之前,接收来自网络设备的第一信令,经过第一信令配置。第一信令用于指示第一波形。第一信令的配置方式是一种半静态配置方式。第一信令包括RRC信令。
示例性地,如图4所示,第一信息可用于指示终端设备在可用时隙1发送第一PUSCH,以及用于指示终端设备在可用时隙2至可用时隙5重复发送第一PUSCH,即N=5。
可选地,在第一信息用于指示终端设备在第1个可用时间单元上能够发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元上能够重复发送(也可称为能够重复传输)第一PUSCH时,第一信息为第一信令。第一信令包括RRC信令。
可选地,RRC信令可以设置波形。以第一波形为CP-OFDM波形示例,RRC信令(比如,RRC连接重配置信令)中的PUSCH字段中的取值为enabled的波形设置参数。当网络设备发送的RRC信令中的PUSCH字段携带有波形设置参数,且波形设置参数的取值为enabled时,终端设备可获知采用第一波形进行上行传输。再例如,如果该RRC信令中的字段指示未使能转换预编码,则终端设备可确定波形为第一波形。如果该RRC信令中的字段指示使能转换预编码,则终端设备可确定波形为第二波形。
仍以图4为例,如果在终端设备接收第一信息之前,终端设备接收来自网络设备的第一信令,第一信令指示的上行传输波形为CP-OFDM波形,则在S301中,终端设备可以以CP-OFDM波形,在可用时隙1开始发送第一PUSCH。
第一PUSCH占用的时频资源也可以是终端设备根据用于接收(或用于网络设备发送)该DCI的无线网络临时标识符(radio network temporary identifier,RNTI)、控制资源集(control-resource set,CORESET)、搜索空间(search space)和DCI格式(format)等信息或参数中的至少一项确定的。例如,由终端设备获取RNTI、CORESET、搜索空间和DCI格式中的至少一项与时频资源之间的对应关系(可称为第一对应关系)在终端设备根据RNTI、CORESET、搜索空间和DCI格式中的至少一项接收该DCI时,可根据该对应关系将对应的时频资源作为第一PUSCH占用的时频资源。该时频资源中的频域资源是绝对值,比如都是一个具体的频段或频率。而时域资源是在可用时间单元中的相对值,比如都是在一个可用时隙中的第1个符号指第5个符号等。
可选地,网络设备可通过第一信令(比如,RRC信令)配置一段资源用于终端发送上行PUSCH,终端设备如有上行传输需求,则可占用该段资源传输,无需向网络设备申请资源,该资源包括第一PUSCH占用的时频资源。此时,第一信令指示终端设备在第1个可用时间单元上能够发送第一PUSCH,在第2个可用时间单元至第N个可用时间单元上能够重复发送第一PUSCH。
可选地,网络设备通过RRC信令配置上述资源,并通过DCI指示该段资源激活,终端设备在收到用于指示该RRC配置的资源激活的DCI后,可以在该资源上发送第一PUSCH。
S302、网络设备发送第二信息。
相应地,终端设备接收到来自网络设备的第二信息。
第二信息可以与第二波形相关。在本申请中,第二信息与第二波形相关可以是指第二波形是根据第二信息确定的。例如,第二信息可用于指示采用第二波形发送PUSCH,或者,第二信息可用于指示切换第一波形或切换波形,因此终端设备可以根据第二信息确定该第二波形。该第二波形例如为DFT-s-OFDM波形。
可选地,第二信息可为第二DCI。第二信息用于指示切换波形,或切换为第二波形。
另外,根据第二信息确定的第二频域资源,与第一PUSCH所占用的第一频域资源相同。
另外,根据第二信息确定的在一个时隙中的起始符号与持续符号个数,分别与第一PUSCH所占用的在一个时隙中的起始符号与持续符号个数相同。
可选地,第二信息与第一信息两者可携带相同的混合自动重传请求(hybrid automatic retransmission request,HARQ)进程号(HARQ process number)以进一步表示第二信息并非用于调度新的上行数据,而是对第一PUSCH的波形切换。例如,第一信息的HARQ process number字段和第二信息的HARQ process number字段的取值相同。
可以理解的是,本申请不限定S301和S302的执行顺序。也就是说,终端设备接收到来自网络设备的第二信息的第一时间单元,可位在第1个可用时间单元之前、之后,也可相同。
S303、终端设备以第二波形,在第M个可用时间单元发送第一PUSCH;其中,M是大于1且小于或等于N的正整数。
相应地,网络设备可以在第M个可用时间单元上,以第二波形接收来自终端设备的第一PUSCH。
其中,在第M个可用时间单元发送第一PUSCH,包括:在第M个可用时间单元重复发送第一PUSCH,或者,在第M个可用时间单元发送第一PUSCH的一部分。
可以理解的是,终端设备以第一波形,在第(M-1)个可用时间单元上发送第一PUSCH或重复发送第一PUSCH。
可选地,第M个可用时间单元可根据终端设备接收第二信息的第一时间单元确定。
可选地,终端设备还可根据第一时间单元和第一参数确定该第M个可用时间单元。其中,在S302中,终端设备可以在第一时间单元接收第二信息。
可选地,第一参数可以是根据预先配置的第二参数确定的。
示例性地,第一参数表示为K2,K2基于PUSCH的参数集(numerology)或μPUSCH确定,μPUSCH为PUSCH的子载波间隔。参数集(numerology)或μPUSCH即第二参数μPUSCH和μPDCCH分别是PUSCH和下行物理控制信道(physical downlink control channel,PDCCH)的子载波间隔。
例如,Ks与K2之间满足:
其中,μPUSCH和μPDCCH分别是PUSCH和PDCCH的子载波间隔。和μoffset,PDCCH分别取和μoffset,由接收PDCCH的小区的高层配置的ca-SlotOffset确定。和μoffset,PUSCH分别取和μoffset,由发送PUSCH的小区的高层配置的ca-SlotOffset确定。ca-SlotOffset是高层为发送PUSCH的小区配置的参数。n是终端设备接收到DCI的时隙,对于图3所示实施例来说,n为第一时间单元的索引。得出的Ks即为前文所述的第M个可用时间单元。
或者,如果终端设备配置有ca-SlotOffset,则Ks与K2之间满足:
其中,Koffset是高层配置的参数,μKoffset是频率范围(frequency range,FR)1的子载波间隔配置参数,取值为0。n是终端设备接收到DCI的时隙。对于图3所示实施例来说,n为第一时间单元的索引。
可以理解,以上ca-SlotOffset的描述可参见第三代伙伴计划(3rd generation partnership project,3GPP)标技术规范(technical specification,TS)38.211中4.2章节对于ca-SlotOffset的介绍。Koffset的描述可参见TS 38.213中4.2章节对于Koffset的介绍。
以上Ks与K2的描述可参见TS 38.213中6.1.2.1章节对于Ks与K2的说明。
以第二信息为第二DCI为例,第一参数可以是第二DCI的处理时延。该处理时延至少可用于终端设备接收第二DCI并解析的第二DCI所携带的内容,以确定需要进行波形切换。可选地,该处理时延还可包括终端设备切换上行数据采用的波形所需的时长。由于终端设备对第二DCI的处理需要一定时间的时延,该时延可能是一定符号数,可能是一定时隙数,比如10个符号或2个时隙,因此,第M个可用时间单元可以在第一时间单元外加处理时延对应的时间所得到的可用时间单元。
可以理解,网络设备可采用相同或类似的方式确定第一参数,并根据第一时间单元以及第一参数确定该第M个可用时间单元,从而在第M个可用时间单元,以该第二波形接收来自所述终端设备的第一PUSCH。这里对于网络设备确定第一参数的方式不再赘述,可以参照终端设备确定第一参数的方式实施。
仍以图4为例,终端设备在可用时隙2接收到来自网络设备的第二信息,此时可用时隙2即为第一时间单元。终端设备和/或网络设备根据上述方式确定第一参数后,根据可用时隙2和第一参数可确定出图4中的可用时隙4为第M个可用时间单元。因此,终端设备 在可用时隙4上以DFT-s-OFDM波形发送第一PUSCH。相应地,网络设备在可用时隙4上以DFT-s-OFDM波形接收第一PUSCH。
可选地,如果终端设备在一个可用时间单元承载的PUSCH采用的波形与前一个可用时间单元承载的PUSCH所采用的波形不同,则在该可用时间单元开始,终端设备启动新的联合信道估计窗口。例如基于S303,终端设备以第二波形在第M个可用时间单元发送第一PUSCH,并且,终端设备以第一波形在第M-1个可用时间单元发送PUSCH或重复发送第一PUSCH,则终端设备从第M个送可用时间单元启动第一联合信道估计窗口。因此,在进行波形切换的可用时间单元,终端设备重新确定联合信道估计的可用时间单元,可以提高联合信道估计准确度,进而提高通信性能。仍以图4为例,如前述,可用时隙4为第M个可用时间单元,因此,终端设备从可用时隙4的起始时刻开始启动第一联合信道估计窗口。
可选地,如果终端设备在前一个可用时隙上行传输所用的波形与当前可用时隙上行传输所用的波形不同时,终端设备在当前可用时隙上启动一个新的联合信道估计窗口。
可选地,终端设备可以不改变联合信道估计窗口的长度。如图5所示,终端设备在可用时隙1的起始时刻,启动一个联合信道估计窗口,该联合信道估计窗口的长度为2个可用时隙。终端设备本应在可用时隙3和可用时隙5分别启动新的联合信道估计窗口,即在可用时隙1和可用时隙2进行联合信道估计,在可用时隙3和可用时隙4进行联合信道估计。而由于终端设备在可用时隙4开始采用第二波形发送第一PUSCH(例如根据S303,终端设备从可用时隙4开始以第二波形发送第一PUSCH)则终端设备可以从可用时隙4开始启动第一联合信道估计窗口,第一联合信道估计窗口的长度仍可以为2个可用时隙。由于从可用时隙4开始采用第二波形发送PUSCH,因此终端设备在可用时隙3和可用时隙4分别采用不同的波形发送上行数据,如果仍然对可用时隙3和可用时隙4进行联合信道估计会导致信道估计结果偏差较大,则终端设备在可用时隙4的起始时刻重启新的联合信道估计窗口,以提高联合信道估计准确度,进而提高通信性能。
可选地,第二信息还可指示联合信道估计窗口的长度(可称为第一长度)则终端设备可根据第一长度确定第一联合信道估计窗口的长度。例如,终端设备可将第一长度作为第一联合信道估计窗口的长度,或者,根据第一长度确定联合信道估计的窗口长度,在第一长度的基础上增加或减少特定值,获得第一联合信道估计窗口的长度。第二信息还可指示用于确定联合信道估计窗口长度的参数。例如,该参数的值为2时,可指示第一长度为2个可用时隙。
可选地,在第一联合信道估计窗口结束后,终端设备恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。也就是说,终端设备可以按照第二波形进行一个联合信道估计窗口长度发送第一PUSCH,之后恢复按照第一波形发送第一PUSCH。此外,本申请也不排除终端设备按照第二波形进行K个联合信道估计窗口长度的发送,K为大于1的整数。可以理解,在K个联合信道估计窗口结束后,终端设备恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。
此外,终端设备也可以在按照第二波形在特定数量个可用时间单元发送第一PUSCH后,恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。另外,终端设备可以在按照第二波形结束第一PUSCH的重复传输后,恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。
另外,终端设备也可以根据网络设备的指示,恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。例如终端设备在第一联合信道估计窗口内或在第一联合信道估计窗口结束之后,接收到第三信息,根据第三信息恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。
可选地,在图3所示流程中,终端设备还可向网络设备上报能力信息,以指示终端设备支持动态切换波形。
可选地,网络设备可以向终端设备发送激活信息,以激活终端设备动态切换波形。因此,该激活信息可以在S301、S302或S303之前发送。
可选地,如果终端设备未接收到来自于网络设备的该激活信息,终端设备可停止执行S303。
基于如图3所示的流程,终端设备可以响应在第二信息在第M个可用时间单元切换波形,而不需要等待第一PUSCH的重复传输完成后再切换波形,这样可以灵活、及时地实现波形切换,缩短波形切换的周期或间隔,从而使得终端设备灵活、及时地增强覆盖范围,提高上行传输性能。
本申请实施例提供的另一种通信方法,可用于在同一个可用时间单元上的不同部分用于上行传输不同的PUSCH时,可以根据情况,灵活、动态地改变其中一个部分上行传输的波形,使得整个可用时间单元采用同一个波形,以增强覆盖范围。如图6所示,本申请实施例提供另一种通信方法:
S601、网络设备发送第一信息,第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一PUSCH。或者,网络设备发送第一信息和第一信令,第一信令指示第一波形,第一信息指示终端设备在第一可用时间资源上发送第一PUSCH。其中,第一可用时间资源包括N1个可用时间单元,N1个可用时间单元包括第一可用时间单元的第一部分,N1为大于或对于2的正整数。
该第一可用时间单元可以是一个可用时间单元。可用时间单元可参见S301中的描述。
相应地,终端设备接收来自网络设备的第一信息,或者,第一信息和第一信令。
其中,在第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一PUSCH时,第一信息包括无线资源控制RRC信令。
其中,在第一信息指示终端设备在第一可用时间资源上发送第一PUSCH时,第一信息包括第一下行指示信息DCI,第一信令包括无线资源控制RRC信令。
有关第一DCI、RRC信令的相关内容,可参见前文的介绍,此处不再赘述。
可选地,图6所示流程中的第一波形是指CP-OFDM波形,第二波形为DFT-s-OFDM波形。也不排除在一些情况下,第一波形、第二波形分别为其他波形。
S602、网络设备发送第二信息,第二信息指示终端设备以第二波形,在第二可用时间资源上发送第二PUSCH,第二可用时间资源包括N2个可用时间单元,N2个可用时间单元包括第一可用时间单元的第二部分。N2为大于或对于2的正整数。
其中,N2可以与N1相等,也可以与N1不相等。
其中,第一部分与第二部分互不重合。互不重合是指两者没有任何重叠的部分。
示例性地,如图7所示,在第一可用时间单元中,该第一部分可以位在第二部分之前,或者,该第二部分可以位在第一部分之前。但第一部分和第二部分没有任何重叠的部分。
S603、在第一条件得到满足后,终端设备以第二波形,在第一可用时间单元的第一部 分发送第一PUSCH,以及在第一可用时间单元的第二部分发送第二PUSCH。
可选地,终端设备还可以第二波形,在第一可用时间单元后的至少一个可用时间单元上发送第一PUSCH。也就是说,终端设备还可在至少两个可用时间单元中,以第二波形发送第一PUSCH。
可选地,终端设备也可在以第二波形在特定数量个可用时间单元或时间长度发送第一PUSCH后,恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。或者,在第一PUSCH包括重复传输时,终端设备可以在按照第二波形发送完第一PUSCH的传输后,恢复以第一波形发送PUSCH,并启动第二联合信道估计窗口。
可选地,终端设备也可以根据网络设备的指示,恢复以第一波形发送PUSCH,并启动第二联合信道估计窗口。例如,终端设备在接收到第三信息后,恢复以第一波形发送PUSCH,并启动第二联合信道估计窗口。终端设备恢复以第一波形发送第一PUSCH的方式具体可参见前文在S303之后对于恢复以第一波形发送第一PUSCH的描述,此处不再赘述。
可选地,终端设备可以从第一可用时间单元的起始时刻开始,启动新的信道估计窗口,如启动第一联合信道估计窗口。可选地,终端设备还可以在开始以第二波形发送第一PUSCH后,经过一个或多个联合信道估计窗口长度后,恢复以第一波形发送第一PUSCH,并启动第二联合信道估计窗口。
有关第一联合信道估计窗口、第二联合信道估计窗口的介绍,可参考前文中关在第一联合信道估计窗口的描述,此处不再赘述。
下面对第一条件进行描述,第一条件可包括以下的至少一项:
(1)第一PUSCH采用单层(single-layer)传输。
其中,单层传输也可称为单端口传输或单天线传输。
当第一PUSCH采用单层传输时,终端设备可以在S603中以第二波形发送第一PUSCH。可以理解,采用单层传输是允许按照第二波形发送PUSCH的要求之一。
下面举例说明终端设备确定第一PUSCH采用单层传输的方式。终端设备可根据第一信息确定传输层数,以确定第一PUSCH是否采用单层传输。例如,第一信息可指示第一PUSCH的传输层数或与传输层数对应的信息。比如,第一信息包括DCI时,第一信息可用于指示PUSCH的码字,该码字可指示确定传输层数。或者,在第一信息包括DCI时,终端设备可根据用于接收第一信息的RNTI、CORESET、搜索空间和DCI格式中的至少一项,确定第一PUSCH的传输层数。例如,RNTI、CORESET、搜索空间和DCI格式中的至少一项与传输层数之间存在对应关系。此外,终端设备也可接收用于指示第一PUSCH采用单层传输的RRC信令或MAC CE或者其他DCI,本申请对此不做限定。
(2)第一PUSCH占用的物理资源块(physical resource block,PRB)为连续的资源块。
其中,(2)也可以表述为第一PUSCH占用的物理资源块PRB不是非连续的资源块或几乎连续资源块(almost-contiguous RB)。
第一PUSCH占用的物理资源块可以是指第一PUSCH占用的频域资源。因此,(2)可以理解为,要求第一PUSCH占用的频域资源是连续的,以支持通过第二波形发送第一PUSCH。
(3)第一PUSCH的起始符号在第二PUSCH的起始符号之后,或者,第二PUSCH的结束符号位在第一PUSCH起始符号之前。
应理解,(3)的一个前提是,第一PUSCH占用的时域资源与第二PUSCH的时域资源不存在时域重叠。因此,(3)要求第一PUSCH的时域位置位在第二PUSCH的时域位置之后,以确保有足够的时间(如足够数量的符号)可用于切换第一PUSCH的波形。
(4)第一PUSCH与第二PUSCH位于相同的可用时间单元,或者,第一PUSCH与第二PUSCH两者各自位于的可用时间单元中间隔最近的符号个数不超过N1,N1为预设的且大于或等于1的正整数。
在(4)得到满足时,第一PUSCH占用的时域资源与第二PUSCH占用的时域资源位于同一个可用时间单元(例如,该可用时间单元包括第一可用时间单元)或者,第一PUSCH占用的时域资源与第二PUSCH占用的时域资源之间的时域间隔不超过一定数量的符号(或可用时间资源)长度,可避免时域上间隔过远的两个PUSCH的波形之间相互影响而造成传输性能下降。
(5)存在第一时隙,使得接收到第二信息的符号,与第一时隙上第一PUSCH的间隔符号数或时隙数大于(或不小于)M1,M1是预设的。
可以理解,第一PUSCH占用的第一可用时间资源包括第一时隙上第一PUSCH占用的符号。
可以理解,如果将第一时隙作为第一可用时间单元,则第一可用时间单元中的第一部分包括该第一时隙上第一PUSCH用的符号。此外,如果将第一时隙作为第一可用时间单元,则第一可用时间单元中的第二部分包括该第一时隙上第二PUSCH用的符号。
其中,该间隔所包括的符号和/或时隙可用于进行波形切换。
(6)存在第二时隙,使得接收到第二信息的时隙,与第二时隙上第一PUSCH的间隔符号数或时隙数大于(或不小于)M2,M2是预设的。
可以理解,第一PUSCH占用的第一可用时间资源包括第二时隙上第一PUSCH占用的符号。
可以理解,如果将第二时隙作为第一可用时间单元,则第一可用时间单元中的第一部分包括该第二时隙上第一PUSCH用的符号。
此外,如果将第二时隙作为第一可用时间单元,则第一可用时间单元中的第二部分包括该第一时隙上第二PUSCH用的符号。
与(5)同理,其中,该间隔所包括的符号和/或时隙可用于进行波形切换。
需要说明的是,以上(1)至(6)仅仅是第一条件的示例,在实际应用中,可将(1)至(6)中的至少一个作为第一条件。如果第一条件包括(1)至(6)中的至少一个,则在(1)至(6)中的至少一个都得到满足时,该第一条件才得到满足。
需要说明的是,如果第一条件没有得到满足,则终端设备以第一波形,在第一可用时间单元的第一部分发送第一PUSCH,以及以第二波形,在第一可用时间单元的第二部分发送所述第二PUSCH;和/或,在第一条件未得到满足后,终端设备以第一波形,在第一可用时间单元后的至少一个可用时间单元上发送第一PUSCH。因此,在第一条件未得到满足后,终端设备可以仍然根据第一信息和/或第二信息所对应的波形发送第一PUSCH和第二PUSCH。
可选的,第一条件可以不包括(1)。
也就是说,如果第一PUSCH采用多层传输,则在S603中,终端设备可以将第一PUSCH的多层传输分别承载在多个可用时间单元中,使得每个可用时间单元中仅存在一层(或一 个数据流)的PUSCH,并以第二波形发送多个可用时间单元分别承载的PUSCH。
由于DFT-s-OFDM波形(即第二波形)仅能承载单流传输,终端设备可将第一PUSCH包含的多流传输中的没一个数据流映射到一个时隙中,即将多流数据切换为单流,以支持采用DFT-s-OFDM波形发送PUSCH,进一步提高覆盖效果。
进一步地,当有多个时隙的第一PUSCH切换为DFT-s-OFDM波形时,多流数可以重复或依次承载在各次单流传输中。示例性地,如图8所示,承载在可用时隙1的第一PUSCH包括第一个数据流和第二个数据流。按照DFT-s-OFDM波形发送第一PUSCH的可能的方式是:方式1中,在可用时隙2重复承载第一PUSCH的第一个数据流、在可用时隙3重复承载第一PUSCH的第一个数据流;或者,方式2中,在可用时隙2重复承载PUSCH#1的第一个数据流、并在可用时隙3重复承载第一PUSCH的第二个数据流。
可选地,在图6所示的流程中,终端设备还可向网络设备上报能力信息,以指示终端设备支持动态切换波形。可选地,如果终端设备不支持动态切换波形,则不执行S603。
可选地,网络设备可以向终端设备发送激活信息,以激活终端设备动态切换波形。因此,该激活信息可以在S601、S602或S603之前发送。
可选地,如果终端设备未接收到来自于网络设备的激活信息,终端设备可停止执行S603。
可以理解,基于图6所示流程,在第一条件得到满足后,终端设备可以采用DFT-s-OFDM发送第一PUSCH而不需要重新指示第一PUSCH采用的波形,从而使得终端设备在此情形下,可以灵活、及时地切换波形,增强覆盖范围,提高上行传输性能。
示例性地,图9示出了本申请实施例提供的装置900。可选地,图9所示的装置可以为本申请所示终端设备或网络设备的一种硬件电路的实现方式。该装置可适用于前面所示出的流程图中,执行上述方法实施例中终端设备或网络设备的功能。
为了便于说明,图9仅示出了该装置的主要部件。
图9所示的装置900包括通信接口910、处理器920和存储器930,其中存储器930用于存储程序指令和/或数据。处理器920可能和存储器930协同操作。处理器920可能执行存储器930中存储的程序指令。存储器930中存储的指令或程序被执行时,该处理器920用于执行图3和图6中任意所示实施例中终端设备或网络设备执行的方法。
存储器930和处理器920耦合。本申请实施例中的耦合是装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。所述存储器930中的至少一个可以包括于处理器920中。
在本申请实施例中,通信接口可以是收发器、电路、总线、模块或其它类型的通信接口。在本申请实施例中,通信接口为收发器时,收发器可以包括独立的接收器、独立的发射器;也可以集成收发功能的收发器、或者是通信接口。
装置900还可以包括通信线路940。其中,通信接口910、处理器920以及存储器930可以通过通信线路940相互连接;通信线路940可以是外设部件互连标准(peripheral component interconnect,PCI)总线或扩展工业标准结构(extended industry standard architecture,EISA)总线等。所述通信线路940可以分为地址总线、数据总线、控制总线等。为便于表示,图9中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。
本申请实施例中还提供一种计算机可读存储介质,包括指令,当其在计算机上运行时, 使得计算机执行图3和图6中任意所示实施例中终端设备或网络设备执行的方法。
本申请实施例中还提供一种计算机程序产品,包括计算机指令,当其在计算机上运行时,使得计算机执行图3和图6中任意所示实施例中终端设备或网络设备执行的方法。
本申请实施例还提供一种芯片系统(也可称为芯片),包括:处理器,所述处理器与存储器耦合,所述存储器用于存储程序或指令,当所述程序或指令被所述处理器执行时,使得该芯片系统执行图3和图6中任意所示实施例中终端设备或网络设备执行的方法。
本申请实施例还提供一种通信系统,包括:图3和图6中任意所示实施例中的终端设备和网络设备。
在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述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,所述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。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括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。所述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。
本申请实施例中所描述的各种说明性的逻辑单元和电路可以通过通用处理器,数字信号处理器,专用集成电路(ASIC)现场可编程门阵列(FPGA)或其它可编程逻辑装置,离散门或晶体管逻辑,离散硬件部件,或上述任何组合的设计来实现或操作所描述的功能。通用处理器可以为微处理器,可选地,该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现,例如数字信号处理器和微处理器,多个微处理器,一个或多个微处理器联合一个数字信号处理器核,或任何其它类似的配置来实现。
在一个或多个示例性地设计中,本申请所描述的上述功能可以在硬件、软件、固件或这三者的任意组合来实现。如果在软件中实现,这些功能可以存储与电脑可读的媒介上,或以一个或多个指令或代码形式传输于电脑可读的媒介上。电脑可读媒介包括电脑存储媒介和便于使得让电脑程序从一个地方转移到其它地方的通信媒介。存储媒介可以是任何通用或特殊电脑可以接入访问的可用媒体。例如,这样的电脑可读媒体可以包括但不限于RAM、ROM、EEPROM、CD-ROM或其它光盘存储、磁盘存储或其它磁性存储装置,或其它任何可以用于承载或存储以指令或数据结构和其它可被通用或特殊电脑、或通用或特殊处理器读取形式的程序代码的媒介。此外,任何连接都可以被适当地定义为电脑可读媒介,例如,如果软件是从一个网站站点、服务器或其它远程资源通过一个同轴电缆、光纤电脑、双绞线、数字用户线(DSL)或以例如红外、无线和微波等无线方式传输的也被包含在所定义的电脑可读媒介中。所述的碟片(disk)和磁盘(disc)包括压缩磁盘、镭射盘、光盘、数字通用光盘(英文:Digital Versatile Disc,简称:DVD)、软盘和蓝光光盘,磁盘通常以磁性复制数据,而碟片通常以激光进行光学复制数据。上述的组合也可以包含在 电脑可读媒介中。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
需要说明的是,本申请中任意方案或实施例中的任意特征的部分或全部,均可自由组合,组合后的技术方案也在本申请的范围内。
尽管结合具体特征及其实施例对本申请进行了描述,显而易见的,在不脱离本申请的精神和范围的情况下,可对其进行各种修改和组合。相应地,本说明书和附图仅仅是所附权利要求所界定的本申请的示例性说明,且视为已覆盖本申请范围内的任意和所有修改、变化、组合或等同物。显然,本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样,倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内,则本申请也意图包括这些改动和变型在内。

Claims (52)

  1. 一种通信方法,其特征在于,包括:
    终端设备接收到来自网络设备的第一信息,所述第一信息指示所述终端设备在第1个可用时间单元发送或能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送或能够重复发送所述第一PUSCH;
    所述终端设备以第一波形,在所述第1个可用时间单元发送所述第一PUSCH;
    所述终端设备接收到来自网络设备的第二信息;
    所述终端设备以第二波形,在第M个可用时间单元发送所述第一PUSCH;
    其中,所述第二波形与所述第二信息相关;所述第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形;所述第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,所述第二波形是使能转换预编码的波形;所述可用时间单元用于所述终端设备发送上行信号;N为大于1的正整数,M为大于1且小于或等于N的正整数。
  2. 根据权利要求1所述的方法,其特征在于,
    所述终端设备接收到来自网络设备的第二信息,包括:所述终端设备在第一时间单元接收到来自所述网络设备的所述第二信息;
    所述终端设备以第二波形,在第M个可用时间单元发送第一PUSCH,包括:所述终端设备根据所述第二信息,确定所述第二波形;所述终端设备根据所述第一时间单元以及第一参数,确定所述第M个可用时间单元;所述终端设备在所述第M个可用时间单元,以所述第二波形发送第一PUSCH;其中,所述第一参数是所述终端设备根据预先配置的第二参数确定的。
  3. 根据权利要求1或2所述的方法,其特征在于,所述方法包括:
    所述终端设备在所述第M个可用时间单元启动第一联合信道估计窗口。
  4. 根据权利要求3所述的方法,其特征在于,在所述第一联合信道估计窗口结束后,所述终端设备恢复以所述第一波形发送,并启动第二联合信道估计窗口。
  5. 根据权利要求3所述的方法,其特征在于,在所述第一联合信道估计窗口中,响应于接收到来自所述网络设备的第三信息,所述终端设备以所述第一波形发送,并启动第二联合信道估计窗口。
  6. 根据权利要求1-5中任意一项所述的方法,其特征在于,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
  7. 根据权利要求1-6中任意一项所述的方法,其特征在于,所述可用时间单元包括可用时隙,所述可用时隙包括以下的至少一种:上行时隙和特殊时隙。
  8. 根据权利要求7所述的方法,其特征在于,所述第一信息还指示所述终端设备以第一波形发送所述第一PUSCH。
  9. 根据权利要求1-8中任意一项所述的方法,其特征在于,所述方法还包括:
    所述终端设备根据所述第二信息确定第一长度,所述第一联合信道估计窗口的长度是至少根据所述第一长度确定的。
  10. 根据权利要求1-9中任意一项所述的方法,其特征在于,在所述第一信息指示所述终端设备在第1个可用时间单元发送第一物理上行共享信道PUSCH,在第2个可用时间单 元至第N个可用时间单元重复发送所述第一PUSCH时,所述第一信息包括第一下行指示信息DCI。
  11. 根据权利要求1-9中任意一项所述的方法,其特征在于,在所述第一信息指示所述终端设备在第1个可用时间单元能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元能够重复发送所述第一PUSCH时,所述第一信息包括第一信令,所述第一信令还指示所述第一波形。
  12. 根据权利要求11所述的方法,其特征在于,所述第一信令包括无线资源控制RRC信令。
  13. 根据权利要求1-12中任意一项所述的方法,其特征在于,
    根据所述第二信息确定的第二频域资源,与所述第一PUSCH所占用的第一频域资源相同;
    根据所述第二信息确定的在一个时隙中的起始符号与持续符号个数,分别与所述第一PUSCH所占用的在一个时隙中的起始符号与持续符号个数相同。
  14. 根据权利要求1-12中任意一项所述的方法,其特征在于,
    所述第1个可用时间单元至所述第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元存在间隔;或者,所述第1个可用时间单元至所述第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元彼此相邻;
    其中,i为大于或等于1,且小于或等于(N-1)的正整数。
  15. 一种通信方法,其特征在于,包括:
    网络设备向终端设备发送第一信息,所述第一信息指示所述终端设备在第1个可用时间单元发送或能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送或能够重复发送所述第一PUSCH;
    所述网络设备向所述终端设备发送第二信息,所述第二信息指示切换为第二波形或切换波形;
    所述网络设备在第M个可用时间单元上,以所述第二波形接收来自所述终端设备的所述第一PUSCH;
    其中,所述第二波形与所述第二信息相关;所述第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,所述第二波形是使能转换预编码的波形;所述可用时间单元用于所述终端设备发送上行信号;N为大于1的正整数,M为大于1且小于或等于N的正整数。
  16. 根据权利要求15所述的方法,其特征在于,在所述第一信息指示所述终端设备在第1个可用时间单元发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元重复发送所述第一PUSCH时,所述第一信息包括第一下行指示信息DCI。
  17. 根据权利要求16所述的方法,其特征在于,在所述网络设备向所述终端设备发送所述第一信息之前,所述方法包括:
    所述网络设备向所述终端设备发送第一信令,所述第一信令指示第一波形,所述第一波形采用循环前缀正交频分复用CP-OFDM,或者,所述第一波形是未使能转换预编码的波形。
  18. 根据权利要求17所述的方法,其特征在于,所述第一信令包括无线资源控制RRC信令。
  19. 根据权利要求15所述的方法,其特征在于,在所述第一信息指示所述终端设备在第1个可用时间单元能够发送第一物理上行共享信道PUSCH,在第2个可用时间单元至第N个可用时间单元能够重复发送所述第一PUSCH时,所述第一信息包括第一信令,所述第一信令还指示第一波形,所述第一波形采用循环前缀正交频分复用CP-OFDM,或者,所述第一波形是未使能转换预编码的波形。
  20. 根据权利要求19所述的方法,其特征在于,所述第一信令包括无线资源控制RRC信令。
  21. 根据权利要求15-20中任意一项所述的方法,其特征在于,
    所述网络设备向所述终端设备发送第二信息,包括:所述网络设备在第一时间单元,向所述终端设备发送所述第二信息;
    所述网络设备在所述第M个可用时间单元上,以第二波形接收来自所述终端设备的第一PUSCH,包括:所述网络设备根据所述第一时间单元以及第一参数,确定所述第M个可用时间单元;所述网络设备在所述第M个可用时间单元,以所述第二波形接收来自所述终端设备的所述第一PUSCH;其中,所述第一参数是所述网络设备根据预先配置的第二参数确定的。
  22. 根据权利要求15-21中任意一项所述的方法,其特征在于,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
  23. 根据权利要求15-22中任意一项所述的方法,其特征在于,所述可用时间单元包括可用时隙,所述可用时隙包括以下的至少一种:上行时隙和特殊时隙。
  24. 根据权利要求15-23中任意一项所述的方法,其特征在于,
    通过所述第二信息指示的第二频域资源,与所述第一PUSCH所占用的第一频域资源相同;
    通过所述第二信息指示的在一个时隙中的起始符号与持续符号个数,分别与所述第一PUSCH所占用的在一个时隙中的起始符号与持续符号个数相同。
  25. 根据权利要求15-24中任意一项所述的方法,其特征在于,
    所述第1个可用时间单元至所述第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元存在间隔;或者,所述第1个可用时间单元至所述第N个可用时间单元中的第i个可用时间单元和第(i+1)个可用时间单元彼此相邻;
    其中,i为大于或等于1,且小于或等于(N-1)的正整数。
  26. 一种通信方法,其特征在于,包括:
    终端设备接收到第一信息,所述第一信息指示所述终端设备以第一波形,在第一可用时间资源上发送第一物理上行共享信道PUSCH;或者,所述终端设备接收到第一信令和第一信息,所述第一信令指示第一波形,所述第一信息指示所述终端设备,在第一可用时间资源上发送第一物理上行共享信道PUSCH;
    所述第一可用时间资源包括N1个可用时间单元,所述N1个可用时间单元包括第一可用时间单元的第一部分;
    所述终端设备接收到第二信息,所述第二信息指示所述终端设备以第二波形,在第二可用时间资源上发送第二PUSCH,所述第二可用时间资源包括N2个可用时间单元,所述N2个可用时间单元包括所述第一可用时间单元的第二部分;
    在第一条件得到满足后,所述终端设备以所述第二波形,在所述第一可用时间单元的 第一部分发送所述第一PUSCH,在所述第一可用时间单元的第二部分发送所述第二PUSCH;
    其中,所述第二波形与所述第二信息相关;所述第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形;所述第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,所述第二波形是使能转换预编码的波形;所述可用时间单元用于所述终端设备发送上行信号;N1、N2均为大于或等于2的正整数。
  27. 根据权利要求26所述的方法,其特征在于,所述方法包括:
    在第一条件得到满足后,所述终端设备以所述第二波形,在所述第一可用时间单元后的至少一个可用时间单元上发送所述第一PUSCH。
  28. 根据权利要求26或27所述的方法,其特征在于,所述方法包括:
    在所述第一条件没有得到满足后,所述终端设备以所述第一波形,在所述第一可用时间单元的第一部分发送所述第一PUSCH;所述终端设备以所述第二波形,在所述第一可用时间单元的第二部分发送所述第二PUSCH。
  29. 根据权利要求28所述的方法,其特征在于,所述方法包括:
    在所述第一条件没有得到满足后,所述终端设备以所述第一波形,于所述第一可用时间单元后的至少一个可用时间单元上发送所述第一PUSCH。
  30. 根据权利要求26-29中任意一项所述的方法,其特征在于,所述第一条件包括以下的至少一项:
    (1)所述第一PUSCH采用单层传输;
    (2)所述第一PUSCH占用的物理资源块PRB为连续的资源块;
    (3)所述第一PUSCH的起始符号在所述第二PUSCH的起始符号之后,或者,所述第二PUSCH的结束符号位于所述第一PUSCH起始符号之前;
    (4)所述第一PUSCH与所述第二PUSCH位于相同的可用时间单元,或者,所述第一PUSCH与所述第二PUSCH两者各自位于的可用时间单元中间隔最近的符号个数,不超过N1,N1为预设的且大于或等于1的正整数;
    (5)存在第一时隙,使得接收到所述第二信息的符号,与所述第一时隙上第一PUSCH的间隔符号数大于M1,M1是预设的;
    (6)存在第二时隙,使得接收到所述第二信息的时隙,与所述第二时隙上第一PUSCH的间隔时隙数大于M2,M2是预设的。
  31. 根据权利要求26-30中任意一项所述的方法,其特征在于,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
  32. 根据权利要求26所述的方法,其特征在于,所述可用时间单元包括可用时隙,所述可用时隙包括以下的至少一种:上行时隙和特殊时隙。
  33. 根据权利要求26-32中任意一项所述的方法,其特征在于,所述第一部分与所述第二部分互不重合。
  34. 一种通信方法,其特征在于,包括:
    网络设备发送第一信息,所述第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一物理上行共享信道PUSCH;或者,网络设备发送第一信令和第一信息,所述第一信令用于指示第一波形,所述第一信息指示终端设备在第一可用时间资源上发送第一物理上行共享信道PUSCH;
    所述第一可用时间资源包括N1个可用时间单元,所述N1个可用时间单元包括第一可用时间单元的第一部分;
    所述网络设备发送第二信息,所述第二信息指示所述终端设备以第二波形,在第二可用时间资源上发送第二PUSCH,所述第二可用时间资源包括N2个可用时间单元,所述N2个可用时间单元包括所述第一可用时间单元的第二部分;
    在第一条件得到满足后,所述网络设备以所述第二波形,在第一可用时间单元接收所述第一PUSCH;
    其中,所述第二波形与所述第二信息相关;所述第一波形采用循环前缀正交频分复用CP-OFDM,或者,第一波形是未使能转换预编码的波形;所述第二波形采用离散傅里叶变换扩频的正交频分复用DFT-s-OFDM,或者,所述第二波形是使能转换预编码的波形;所述可用时间单元用于所述网络设备接收上行信号;N1、N2均为大于或等于2的正整数。
  35. 根据权利要求34所述的方法,其特征在于,所述方法包括:
    在所述第一条件得到满足后,所述网络设备以所述第二波形,在所述第一可用时间单元后的至少一个可用时间单元上接收所述第一PUSCH。
  36. 根据权利要求34或35所述的方法,其特征在于,所述方法包括:
    在所述第一条件没有得到满足后,所述网络设备以所述第一波形,在所述第一可用时间单元上接收所述第一PUSCH。
  37. 根据权利要求36所述的方法,其特征在于,所述方法包括:
    在所述第一条件没有得到满足后,所述网络设备以所述第一波形,在所述第一可用时间单元后的至少一个可用时间单元上接收所述第一PUSCH。
  38. 根据权利要求34-37中任意一项所述的方法,其特征在于,所述第一条件包括以下的至少一项:
    (1)所述第一PUSCH采用单层传输;
    (2)所述第一PUSCH占用的物理资源块PRB为连续的资源块;
    (3)所述第一PUSCH的起始符号在所述第二PUSCH的起始符号之后,或者,所述第二PUSCH的结束符号位于所述第一PUSCH起始符号之前;
    (4)所述第一PUSCH与所述第二PUSCH位于相同的可用时间单元,或者,所述第一PUSCH与所述第二PUSCH两者各自位于的可用时间单元中间隔最近的符号个数,不超过N1,N1为预设的且大于或等于1的正整数;
    (5)存在第一时隙,使得接收到所述第二信息的符号,与所述第一时隙上第一PUSCH的间隔符号数大于M1,M1是预设的;
    (6)存在第二时隙,使得接收到所述第二信息的时隙,与所述第二时隙上第一PUSCH的间隔时隙数大于M2,M2是预设的。
  39. 根据权利要求34-38中任意一项所述的方法,其特征在于,单个可用时间单元跨越至少两个时隙,或者,单个可用时间单元为单个可用时隙。
  40. 根据权利要求39所述的方法,其特征在于,所述可用时间单元包括可用时隙,所述可用时隙包括以下的至少一种:上行时隙和特殊时隙。
  41. 根据权利要求34-40中任意一项所述的方法,其特征在于,在所述第一信息指示终端设备以第一波形,在第一可用时间资源上发送第一物理上行共享信道PUSCH时,所述第一信息包括无线资源控制RRC信令。
  42. 根据权利要求34-40中任意一项所述的方法,其特征在于,在所述第一信息指示终端设备在第一可用时间资源上发送第一物理上行共享信道PUSCH时,所述第一信息包括第一下行指示信息DCI,所述第一信令包括无线资源控制RRC信令。
  43. 根据权利要求34-41中任意一项所述的方法,其特征在于,所述第一部分与所述第二部分互不重合。
  44. 一种终端设备,包括处理器和耦合至所述处理器的存储器,其特征在于,所述存储器存储有计算机程序,当所述计算机程序被所述处理器执行时,使得所述终端设备执行如权利要求1-14和26-33中任意一项所述的方法。
  45. 一种网络设备,包括处理器和耦合至所述处理器的存储器,其特征在于,所述存储器存储有计算机程序,当所述计算机程序被所述处理器执行时,使得所述网络设备执行如权利要求15-25和34-43中任意一项所述的方法。
  46. 一种芯片,包括处理器和耦合至所述处理器的存储器,其特征在于,所述存储器存储有计算机程序,所述芯片位于终端设备内,当所述处理器执行所述计算机程序时,使得所述终端设备执行如权利要求1-14和26-33中任意一项所述的方法。
  47. 一种芯片,包括处理器和耦合至所述处理器的存储器,其特征在于,所述存储器存储有计算机程序,所述芯片位于网络设备内,当所述处理器执行所述计算机程序时,使得所述网络设备执行如权利要求15-25和34-43中任意一项所述的方法。
  48. 一种计算机可读存储介质,存储有计算机程序,其特征在于,当所述计算机程序在终端设备上运行时,使得所述终端设备执行如权利要求1-14和26-33中任意一项所述的方法。
  49. 一种计算机可读存储介质,存储有计算机程序,其特征在于,当所述计算机程序在网络设备上运行时,使得所述网络设备执行如权利要求15-25和34-43中任意一项所述的方法。
  50. 一种计算机程序产品,存储在计算机可读存储介质上,其特征在于,在所述计算机程序产品在终端设备上运行时,使得所述终端设备执行如权利要求1-14和26-33中任意一项所述的方法。
  51. 一种计算机程序产品,存储在计算机可读存储介质上,其特征在于,在所述计算机程序产品在网络设备上运行时,使得所述网络设备执行如权利要求15-25和34-43中任意一项所述的方法。
  52. 一种通信系统,其特征在于,所述通信系统包括网络设备和终端设备,所述终端设备用于执行如权利要求1-14和26-33中任意一项所述的方法,所述网络设备用于执行如权利要求15-25和34-43中任意一项所述的方法。
PCT/CN2023/087395 2022-04-16 2023-04-10 一种通信方法及装置 WO2023198009A1 (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN202210400397.8 2022-04-16
CN202210400397 2022-04-16
CN202210625754.0A CN116980102A (zh) 2022-04-16 2022-06-02 一种通信方法及装置
CN202210625754.0 2022-06-02

Publications (1)

Publication Number Publication Date
WO2023198009A1 true WO2023198009A1 (zh) 2023-10-19

Family

ID=88328894

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/087395 WO2023198009A1 (zh) 2022-04-16 2023-04-10 一种通信方法及装置

Country Status (1)

Country Link
WO (1) WO2023198009A1 (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110832815A (zh) * 2017-05-02 2020-02-21 株式会社Ntt都科摩 用户终端以及无线通信方法
CN111316729A (zh) * 2017-09-26 2020-06-19 夏普株式会社 终端装置以及基站装置
WO2022042247A1 (zh) * 2020-08-28 2022-03-03 华为技术有限公司 一种波形指示方法及芯片、系统

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110832815A (zh) * 2017-05-02 2020-02-21 株式会社Ntt都科摩 用户终端以及无线通信方法
CN111316729A (zh) * 2017-09-26 2020-06-19 夏普株式会社 终端装置以及基站装置
WO2022042247A1 (zh) * 2020-08-28 2022-03-03 华为技术有限公司 一种波形指示方法及芯片、系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
GUANGDONG OPPO MOBILE TELECOM: "Waveform selection for uplink control signal", 3GPP TSG RAN WG1 MEETING #87, R1-1611705, 13 November 2016 (2016-11-13), XP051175675 *

Similar Documents

Publication Publication Date Title
US10931407B2 (en) User terminal and radio communication method
JP7423823B2 (ja) 伝送ブロック伝送方法及び装置
WO2020200017A1 (zh) 一种通信方法及装置
WO2018202178A1 (zh) 波束恢复方法及装置
CN109151898B (zh) 信号传输方法、相关装置及系统
CN115516805A (zh) 涉及子时隙物理上行链路控制信道(pucch)重复的系统和方法
EP3751763A1 (en) Indication method, network device and user equipment
WO2016165565A1 (zh) 一种传输数据的方法和设备装置
WO2021062813A1 (zh) 确定数据传输的时域资源的方法、装置及计算机存储介质
WO2019137011A1 (zh) 一种通信方法及上行资源确定方法
US9491725B2 (en) User equipment and methods for device-to-device communication over an LTE air interface
WO2021032003A1 (zh) 上行控制信息传输方法及通信装置
WO2023198009A1 (zh) 一种通信方法及装置
US20220173870A1 (en) Communication Method and Apparatus
WO2022077876A1 (zh) 一种通信方法及装置
WO2021000954A1 (zh) 一种数据传输方法及通信装置
KR20230164663A (ko) 무선 통신 시스템에서 신호 전송 방법 및 장치
WO2021063375A1 (zh) 反馈信息处理方法及通信装置
US20220279485A1 (en) Method for switching bwp for sidelink communication, and communication device
WO2021088091A1 (zh) 通信方法及装置
WO2021062824A1 (zh) 一种信息处理方法和通信设备
CN115843421A (zh) 指示传输控制指示符状态的下行链路控制信息
CN116980102A (zh) 一种通信方法及装置
WO2023011372A1 (zh) 数据传输方法及装置
WO2024034031A1 (ja) 端末及び無線通信方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23787653

Country of ref document: EP

Kind code of ref document: A1