WO2020024754A1 - 一种发送上行控制信息的方法、设备及系统 - Google Patents

一种发送上行控制信息的方法、设备及系统 Download PDF

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Publication number
WO2020024754A1
WO2020024754A1 PCT/CN2019/094286 CN2019094286W WO2020024754A1 WO 2020024754 A1 WO2020024754 A1 WO 2020024754A1 CN 2019094286 W CN2019094286 W CN 2019094286W WO 2020024754 A1 WO2020024754 A1 WO 2020024754A1
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WO
WIPO (PCT)
Prior art keywords
uplink
uplink control
channel
data channel
uplink data
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PCT/CN2019/094286
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English (en)
French (fr)
Inventor
李胜钰
官磊
马蕊香
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华为技术有限公司
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Publication of WO2020024754A1 publication Critical patent/WO2020024754A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • Embodiments of the present application relate to the field of communications technologies, and in particular, to a method, device, and system for sending uplink control information.
  • next-generation wireless (Next Radio, NR) system a physical uplink data channel (PUSCH) and a physical uplink control channel (PUCCH) cannot be transmitted simultaneously.
  • PUSCH physical uplink data channel
  • PUCCH physical uplink control channel
  • the NR system reuses Long-Term Evolution-Advanced (LTE) UCI piggyback on PUSCH mechanism, silent PUCCH, carry UCI (such as: Acknowledgement (ACK) / Negative Acknowledgement (NACK), Channel State Information (CSI), etc.) in the PUCCH on the PUSCH With the data.
  • LTE Long-Term Evolution-Advanced
  • ACK Acknowledgement
  • NACK Negative Acknowledgement
  • CSI Channel State Information
  • the time domain position and time domain length of the PUCCH and PUSCH are flexibly configured. At some times, although the PUCCH and PUSCH overlap in the time domain, they are not aligned (or do not completely overlap), and the terminal does not generate an ACK when sending the PUSCH. / NACK, or when sending a PUCCH, the terminal does not yet know whether there is a subsequent time domain overlap with the PUSCH.
  • the terminal will not directly execute the UCI piggyback on the PUSCH, but will directly send the PUCCH without sending the PUSCH, but this cannot Guarantee the delay of high-priority data (such as Ultra-reliable / low latency communication (URLLC)); or, the terminal sends PUCCH first, and when subsequent data arrives, it stops sending PUCCH and forwards PUSCH, although this can guarantee the data delay, it will cause interference with the PUCCH transmission of other terminals; or, the terminal sends both PUCCH and PUSCH at the same time, but this will increase the blind solution complexity of the receiving end (such as a base station).
  • high-priority data such as Ultra-reliable / low latency communication (URLLC)
  • URLLC Ultra-reliable / low latency communication
  • the present application provides a method, device, and system for sending uplink control information, so as to solve the problems of high data delay or interference or blind complexity caused by existing terminals sending uplink control information.
  • the present application provides a method for sending uplink control information.
  • the method includes: a terminal obtaining a slot number of an uplink control channel, a start symbol of the uplink control channel, a time domain length of the uplink control channel, and obtaining uplink data.
  • the uplink data channel is a configured authorized uplink channel, and the uplink data channel and the uplink control channel are in the time domain.
  • the terminal silences the uplink control channel, and sends uplink control information and uplink data on the uplink data channel.
  • the terminal can mute the uplink control channel only when the time domain position of the uplink control channel and the time domain position of the configured authorized data channel meet certain conditions, and carry the uplink control information and data together.
  • the terminal silences the uplink control channel and sends the uplink on the uplink data channel. In this way, the control information and data not only avoid the interference problem caused by the terminal stopping sending the uplink control channel halfway, but also ensure the delay requirement of high priority data.
  • the uplink control information includes acknowledgement (ACK) / negative acknowledgement (NACK), and the first condition includes: a distance between the first symbol and an end symbol of the downlink data channel Greater than or equal to the first threshold, the difference between the starting symbol of the uplink control channel and the uplink data channel is less than or equal to the second threshold, and the difference is equal to the number of the starting symbol of the uplink data channel minus the starting symbol of the uplink control channel
  • the first symbol is the start time symbol of the uplink control channel and the uplink data channel.
  • the terminal has generated ACK / NACK when sending the uplink data channel, and when preparing to send the uplink control channel, it can already determine whether the overlapping uplink data channel will be activated, so that the terminal can be activated on the uplink data channel.
  • the uplink control channel is directly silenced, and the ACK / NACK and data are carried on the uplink data channel for transmission, so as to realize UCI piggyback on PUSCH.
  • the uplink control channel is directly transmitted.
  • the terminal sends uplink control information on the uplink data channel, including: obtaining a downlink allocation index including ACK / NACK correspondence (Downlink Assignment IDEX (DAI) information, the first information, determines the ACK / NACK codebook according to the DAI information, and sends the ACK / NACK codebook on the uplink data channel.
  • DAI Downlink Assignment IDEX
  • the terminal obtaining the first information includes: the terminal obtaining the first information from a high-level parameter configuration. In this way, the terminal can obtain the first information through the existing parameter configuration without adding new signaling and reducing the signaling overhead.
  • the terminal obtaining the first information includes: the terminal obtaining the first information from the first downlink control channel, where the first The end symbol of a downlink control information is earlier than the start symbol of the uplink data channel, and the distance between the start symbol of the uplink data channel and the start symbol of the first downlink control channel is less than or equal to the first duration, or the uplink data channel The distance between the start symbol and the end symbol of the first downlink control channel is less than or equal to the first duration.
  • the first duration is the shortest processing specified by the protocol and the terminal receives the ACK / NACK corresponding to the downlink data channel and sends the downlink data channel. Duration. The first duration is used to determine the first threshold. In this way, when transmitting the PDSCH corresponding to the ACK / NACK, the DAI information may be indicated through a separate PDCCH.
  • the terminal is on the uplink data channel
  • Sending the ACK / NACK codebook includes: the terminal sends the ACK / NACK codebook on the uplink data channel in a punctured manner; or the terminal sends the ACK / NACK codebook on the reserved time-frequency resource of the uplink data channel. In this way, the terminal can send ACK / NACK codebooks in different ways, which improves the flexibility of sending ACK / NACK codebooks.
  • the uplink control information includes aperiodic channel state information (A-CSI), and the first condition includes: an uplink control channel and uplink data The difference between the start symbols of the channel is less than or equal to the second threshold; and / or, the distance between the first symbol and the end symbol of the second downlink control channel is greater than or equal to the third threshold, and the second downlink control channel is used to indicate the terminal Send A-CSI; and / or, the distance between the first symbol and the end symbol of the downlink reference signal is greater than or equal to the fourth threshold, the configuration information of the downlink reference signal may be indicated by the second downlink control channel, and the downlink reference signal corresponds to A-CSI
  • the terminal performs channel measurement and / or interference measurement according to the downlink reference signal, so that the terminal generates A-CSI according to the channel measurement and / or interference measurement results; where the difference is equal to the number of the starting symbol of the uplink data channel minus The number of the start symbol
  • the first symbol is the start symbol of the uplink control channel and the uplink data channel. Symbols beginning foremost symbol time, the third threshold is equal to or greater than the fourth threshold. In this way, it can be ensured that the terminal has completed the A-CSI measurement when sending the uplink data channel, and when preparing to send the uplink control channel, it can already determine whether the overlapping uplink data channel will be activated, so that the uplink data channel can be activated. Under the premise, the terminal directly silences the uplink control channel, and carries the A-CSI and data on the uplink data channel for transmission, so as to realize UCI piggyback on PUSCH; and under the premise that the uplink data channel will not be activated, it directly sends the uplink control channel. .
  • the uplink control information includes periodic channel state information (Periodic Channel State Information, P-CSI) or semi-persistent channel state information (Semi-persistent Channel State Information (SP-CSI), the first condition includes: the difference between the starting symbol of the uplink control channel and the uplink data channel is less than or equal to the second threshold, and the difference is equal to the number of the starting symbol of the uplink data channel minus the uplink control The number of the start symbol of the channel.
  • P-CSI Period Channel State Information
  • SP-CSI semi-persistent Channel State Information
  • the terminal when the terminal sends P-CSI / SP-CSI, it can be determined that subsequent uplink data channels are activated, and it will directly silence the uplink control channel and carry the P-CSI / SP-CSI and data together on the uplink data channel. Send to achieve UCI piggyback on PUSCH.
  • the second threshold Determined by the first value the first value is less than half of the second duration
  • the second duration is the shortest processing time specified in the protocol and the terminal receives the uplink grant UL Grant and sends the uplink data channel corresponding to the uplink grant. In this way, it is simple and easy to determine the second duration corresponding to the configured authorized uplink data channel according to the minimum processing time of the authorized uplink data channel.
  • the method further includes: when the time domain positions of the uplink control channel and the uplink data channel do not satisfy the first Under a condition, the terminal sends the highest priority channel among the uplink control channel and the uplink data channel according to the priority information.
  • the priority information may include: in the case where the uplink control channel adopts format one, the priority of the uplink control channel The priority is higher than the uplink data channel.
  • the priority of the uplink control channel is lower than the uplink data channel; or the priority of the first type of uplink control channel is higher than The second type of uplink data channel; the first type of uplink data channel has higher priority than the first type of uplink control channel; the first type of uplink data channel has higher priority than the second type of uplink control channel; the second The uplink data channel of the type has higher priority than the uplink control channel of the second type.
  • the present application provides a communication device.
  • the communication device may be a terminal in a communication network, and may also be a chip or a system on a chip in the terminal.
  • the communication device may implement the communication device in the above aspects or in every possible design.
  • the functions performed may be implemented by hardware, and may also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the foregoing functions.
  • the communication device may include: an obtaining unit and a sending unit;
  • An obtaining unit configured to obtain a slot number of the uplink control channel, a start symbol of the uplink control channel, and a time domain length of the uplink control channel; and obtain a slot number of the uplink data channel, a start symbol of the uplink data channel, and uplink data
  • the sending unit is configured to silence the uplink control channel and send uplink control information and uplink data on the uplink data channel when the time domain position of the uplink control channel and the time domain position of the uplink data channel meet the first condition.
  • the communication device can achieve the same beneficial effects as the first aspect or any possible design of the first aspect.
  • a communication device including: a processor and a memory; the memory is configured to store a computer execution instruction, and when the communication device is running, the processor executes the computer execution instruction stored in the memory, so that the memory
  • the communication device executes the method for sending the control information according to the first aspect or any possible design of the first aspect.
  • a computer-readable storage medium stores instructions, and when the computer-readable storage medium runs on the computer, the computer can execute the foregoing first aspect or any one of the foregoing aspects. Design the method for sending the control information described above.
  • a computer program product containing instructions, which, when run on a computer, enables the computer to execute the method for sending the control information according to the first aspect or any one of the foregoing possible designs.
  • a chip system includes a processor and a communication interface, and is configured to support a communication device to implement the functions involved in the foregoing aspects, for example, the processor acquires a slot number of an uplink control channel and an uplink control channel.
  • the chip system further includes a memory, and the memory is configured to store program instructions and data necessary for the communication device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides another method for sending the foregoing control information.
  • the terminal obtains a slot number of an uplink control channel for carrying aperiodic channel state information A-CSI, a start symbol of the uplink control channel, and uplink control.
  • the uplink data channel and the uplink control channel partially or completely overlap in the time domain; when the time domain position of the uplink control channel and the time domain position of the uplink data channel meet the second condition, the terminal silences the uplink control channel, and in the uplink Send uplink control information and uplink data on the data channel.
  • the terminal can mute the A-CSI and the uplink control channel when the time domain position of the uplink control channel and the time domain position of the uplink data channel scheduled by the first downlink control channel meet certain conditions.
  • the data is carried on the uplink data channel and sent together to achieve A-CSI piggyback on PUSCH, that is, for the dynamically scheduled uplink data channel, the UCI piggyback on PUSCH timeline is introduced.
  • the uplink control channel is silently transmitted on the uplink.
  • the A-CSI and data are transmitted on the data channel, so that the channel measurement and measurement report generation can be completed when the uplink data channel is transmitted.
  • the second condition includes: a distance between the first symbol and an end symbol of the first downlink control channel is greater than or equal to a first threshold, and the first symbol is uplink The first symbol of the start symbol of the control channel and the first symbol of the uplink data channel.
  • the second condition includes that: a distance between the first symbol and an end symbol of the second downlink control channel is greater than or It is equal to the third threshold.
  • the first symbol is the first symbol of the start symbol of the uplink control channel and the start symbol of the uplink data channel.
  • the second downlink control channel is used to instruct the terminal to send A-CSI.
  • the third threshold is preset. The minimum processing time for the terminal to receive A-CSI from the second downlink control channel to the terminal is determined.
  • the terminal can directly silence the uplink control channel, and carry the A-CSI and data on the uplink data channel for transmission, thereby achieving A-CSI piggyback PUSCH.
  • the second condition includes that: a distance between the first symbol and an end symbol of the downlink reference signal is greater than or equal to the first Four thresholds.
  • the first symbol is the first symbol of the uplink control channel and the uplink data channel.
  • the configuration information of the downlink reference signal can be indicated by the second downlink control channel, the downlink reference signal, and A- CSI correspondence, such as: the terminal performs channel measurement and / or interference measurement according to the downlink reference signal, so that the terminal generates A-CSI according to the channel measurement and / or interference measurement result; the fourth threshold is when the terminal receives the downlink reference signal and sends the terminal A -The minimum processing time of CSI is determined.
  • the terminal can directly silence the uplink control channel, and carry the A-CSI and data on the uplink data channel for transmission, thereby achieving A-CSI piggyback PUSCH.
  • the method further includes: when the time domain positions of the first uplink channel and the second uplink channel are not satisfied In the second condition, the terminal sends the highest priority channel among the uplink control channel and the uplink data channel according to the priority information.
  • the priority information is: when the uplink control channel adopts format one, the priority of the uplink control channel is high.
  • the priority of the uplink control channel is lower than that of the uplink data channel; or, the priority of the first type of uplink control channel is higher than that of the second type
  • the uplink data channel of the first type has a higher priority than the uplink control channel of the first type; the uplink data channel of the first type has a higher priority than the uplink control channel of the second type;
  • the priority of the uplink data channel is higher than that of the second type of uplink control channel.
  • the present application provides a communication device.
  • the communication device may be a terminal in a communication network, and may also be a chip or a system on a chip in the terminal.
  • the communication device may implement the communication device in the above aspects or in every possible design.
  • the functions performed may be implemented by hardware, and may also be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the foregoing functions.
  • the communication device may include: an obtaining unit and a sending unit.
  • An obtaining unit configured to obtain a slot number of an uplink control channel used to carry aperiodic channel state information A-CSI, a start symbol of the uplink control channel, a time domain length of the uplink control channel, and a time to obtain an uplink data channel Slot number, start symbol of uplink data channel, and time domain position information of time domain length of uplink data channel, wherein the uplink data channel is scheduled by a first downlink control channel, and the uplink data channel and uplink control channel are in the time domain Partial or full overlap;
  • the sending unit is configured to silence the uplink control channel and send uplink control information and uplink data on the uplink data channel when the time domain position of the uplink control channel and the time domain position of the uplink data channel meet the second condition.
  • the provided communication device can achieve the same beneficial effects as the seventh aspect or any possible design of the seventh aspect.
  • a communication device including: a processor and a memory; the memory is configured to store a computer execution instruction, and when the communication device is running, the processor executes the computer execution instruction stored in the memory so that the memory
  • the communication device executes the method for sending the control information according to the seventh aspect or any one of the possible designs of the seventh aspect.
  • a computer-readable storage medium stores instructions, and when the computer-readable storage medium runs on the computer, the computer can execute the seventh aspect or any of the foregoing aspects. Design the method for sending the control information described above.
  • a computer program product containing instructions which, when run on a computer, enables the computer to execute the seventh aspect or any one of the possible designs of the above aspect to send the control information. method.
  • a chip system includes a processor and a communication interface, and is configured to support a communication device to implement the functions involved in the foregoing aspect, for example, the processor acquires an uplink control channel for carrying A-CSI. Time slot number, start symbol of the uplink control channel, and time domain length of the uplink control channel, and obtain the time slot number of the uplink data channel, start symbol of the uplink data channel, and time domain length of the uplink data channel Information; when the time domain position of the uplink control channel and the time domain position of the uplink data channel meet the second condition, the uplink control channel is silenced, and uplink control information and uplink data are sent on the uplink data channel.
  • the chip system further includes a memory, and the memory is configured to store program instructions and data necessary for the communication device.
  • the chip system can be composed of chips, and can also include chips and other discrete devices.
  • the present application provides a system for sending uplink control information, including: the communication device and the access network device according to the second to sixth aspects; or, including the eighth to twelfth aspects The communication device and the access network equipment.
  • FIG. 1 is a simplified schematic diagram of a system architecture according to an embodiment of the present application.
  • FIG. 2 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 3 is a flowchart of a method for sending uplink control information according to an embodiment of the present application
  • 4a is a schematic diagram of sending ACK / NACK according to an embodiment of the present application.
  • 4b is another schematic diagram of sending ACK / NACK according to an embodiment of the present application.
  • FIG. 4c is another schematic diagram of sending an ACK / NACK according to an embodiment of the present application.
  • 5a is a schematic diagram of sending A-CSI according to an embodiment of the present application.
  • 5b is another schematic diagram of sending A-CSI according to an embodiment of the present application.
  • FIG. 5c is another schematic diagram of sending A-CSI according to an embodiment of the present application.
  • FIG. 6 is a flowchart of another method for sending uplink control information according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of a system for sending uplink control information according to an embodiment of the present application.
  • the method for sending uplink control information provided in the embodiment of the present application can be applied to the communication system shown in FIG. 1.
  • the communication system may be a 5G mobile communication system, or a Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • the communication system may include an access network device and multiple terminals, and the terminal may establish a connection with the access network device through a wireless network.
  • FIG. 1 is only an exemplary frame diagram, and the number of nodes included in FIG. 1 is not limited. In addition to the functional nodes shown in FIG. 1, other nodes such as core network equipment and gateway equipment may be included. , Application servers, etc., without restrictions.
  • the access network device in FIG. 1 may be a base station (NodeB, NB), a macro station, a micro base station, an indoor hotspot, a relay node, a next generation base station (Generation NodeB, gNB), and a transmission and reception point (Transmission Reception Point, TRP). ), Transmission point (Transmission Point, TP) and other access nodes.
  • the access network device has functions such as sending downlink data to the terminal, sending scheduling information (such as Downlink Control Information (DCI)) for controlling the terminal's uplink transmission to the terminal, and receiving uplink data transmission from the receiving terminal.
  • DCI Downlink Control Information
  • the downlink data bearer is sent to the terminal on the downlink data channel, and the downlink data channel may be a physical downlink shared channel (PDSCH); the DCI bearer is sent to the terminal on the downlink control channel, and the downlink control
  • the information may be a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
  • the terminals in Figure 1 can be mobile phones, tablet computers, smart printers, train detectors, wireless local loop (WLL) stations, personal digital assistants (PDAs), computers, laptop computers, Hand-held communication devices, handheld computing devices, satellite wireless devices, wireless modem cards, set-top boxes (STB), customer premise equipment (CPE), and other devices used to communicate on wireless systems Any of the devices.
  • the terminal has functions of collecting data, receiving downlink data and scheduling information issued by the access network device, and sending radio waves to the access network device.
  • the sending of radio waves by the terminal to the access network device may include: the terminal sends uplink data and uplink control information to the access network device.
  • the uplink data is carried on the uplink data channel and sent to the access network device.
  • the uplink data may be a Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • the uplink control information is carried on the uplink control channel to the access network device.
  • the uplink control channel may be a physical uplink control channel (Physical Uplink Control Channel, PUCCH).
  • a terminal when a terminal sends an uplink data channel and an uplink control channel in overlapping time domain positions, if the uplink data channel and the uplink control channel meet certain conditions, the terminal silences the uplink control channel and uses the uplink data channel. Send uplink control information and data.
  • the possible design may be described with reference to FIG. 3 or FIG. 6 described below.
  • FIG. 2 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 200 includes at least one processor 201, a communication line 202, a memory 203, and at least one communication interface 204.
  • the processor 201, the memory 203, and the communication interface 204 may be connected through a communication line 202.
  • the processor 201 may be a central processing unit (CPU), a specific integrated circuit (Application Specific Integrated Circuit, ASIC), or one or more integrated circuits configured to implement the embodiments of the present application.
  • CPU central processing unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital signal processors
  • FPGAs field programmable gate arrays
  • the communication line 202 may include a path for transmitting information between the aforementioned components.
  • the memory 203 may be a read-only memory (Read-Only Memory, ROM) or other types of static storage devices that can store static information and instructions, a random access memory (Random, Access Memory, RAM), or other types that can store information and instructions
  • the dynamic storage device can also be Electrically Erasable Programmable Read-Only Memory (EEPROM), Compact Disc (Read-Only Memory, CD-ROM) or other optical disk storage, optical disk storage (Including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be used by a computer Any other media accessed, but not limited to this.
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc
  • optical disk storage including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory 203 may exist independently, and is connected to the processor 201 through a communication line 202.
  • the memory 203 may also be integrated with the processor 201.
  • the memory 203 is configured to store execution instructions or application program code, and is controlled and executed by the processor 201 to implement the method for sending uplink control information provided in the following embodiments of the present application, such as implementing the method shown in FIG. 3 or FIG. 6. .
  • the communication interface 204 is used to communicate with other devices or communication networks. Any device such as a transceiver can be used, such as Ethernet, Radio Access Network (RAN), and Wireless Local Area Networks (WLAN). Wait.
  • RAN Radio Access Network
  • WLAN Wireless Local Area Networks
  • the processor 201 may include one or more CPUs, such as CPU0 and CPU1 in FIG. 2.
  • the communication device 200 may include multiple processors, such as the processor 201 and the processor 207 in FIG. 2.
  • the communication apparatus 200 may further include an output device 205 and an input device 206.
  • FIG. 3 is a flowchart of a method for sending uplink control information according to an embodiment of the present application. As shown in FIG. 3, the method may include steps 301 to 303:
  • Step 301 The terminal acquires time domain position information of the uplink control channel.
  • the terminal may be any terminal in FIG. 1.
  • the uplink control channel can be PUCCH, which can be used to carry uplink control information.
  • the uplink control information can be UCI, which can include ACK / NACK, or periodic channel state information (Periodic Channel State Information, P-CSI), or semi-persistent. (Semi-Persistent Channel State Information, SP-CSI), or Aperiodic Channel State Information (P-CSI).
  • the time domain position information of the uplink control channel may be used to indicate the time domain position of the uplink control channel, and may include information such as the slot number of the uplink control channel, the start symbol of the uplink control channel, and the time domain length of the uplink control channel.
  • the time domain number of the uplink control channel can be used to indicate the time slot occupied by the uplink data channel.
  • the starting symbol of the uplink control channel refers to the frontmost symbol in the time domain position of the uplink control channel.
  • the domain length refers to the number of symbols occupied by the uplink control channel. The more symbols, the longer the time domain length, and vice versa, the shorter the time domain length.
  • the time domain position of the uplink control channel may also include unavailable symbols (such as idle symbols).
  • the available symbols refer to the symbols used to carry the uplink control information. For example, the time domain number of PUCCH is slot1, and the starting symbol of PUCCH is the third symbol in slot1. If the time domain length of PUCCH is 10, the time domain position of PUCCH is from the third symbol to the twelfth symbol on slot1. symbol.
  • the above line of control information is ACK / NACK as an example.
  • the terminal may obtain the time domain position information of the uplink control channel through the following manners 1-3.
  • the ACK / NACK is a decoding result of a dynamically scheduled downlink data channel (such as PDSCH), and the dynamically scheduled downlink data channel refers to a downlink data channel scheduled by a downlink control channel.
  • the first indication information is obtained in the control channel, and the feedback time slot of the decoding result ACK / NACK of the downlink data channel is determined according to the first indication information.
  • the feedback time slot is used as the time slot of the uplink control channel carrying the ACK / NACK.
  • An indication information may be PDSCH-to-HARQ-timing indication information; and, an ACK / NACK resource indication (ACK / NACK resource indication) is obtained from a downlink control channel, and an uplink control channel carrying the ACK / NACK is determined according to the ARI.
  • the time domain resources where the uplink control channel is located may include: a start symbol of the uplink control channel, and a time domain length of the uplink control channel.
  • the ACK / NACK is a decoding result of a semi-persistent scheduling (SPS) downlink data channel (such as SPS PDSCH).
  • SPS semi-persistent scheduling
  • the initial transmission of SPS PDSCH is scheduled by activating the PDCCH, and the subsequent period of SPS PDSCH
  • the location of the sexual transmission is configured by the access network device to the terminal through high-level signaling.
  • the terminal obtains the first indication information from the activated PDCCH, and determines the feedback of the ACK / NACK corresponding to each SPS PDSCH according to the first indication information.
  • the time slot of the uplink control channel carrying ACK / NACK is determined according to the timing offset value, wherein the first indication information may be PDSCH-to-HARQ-timing indication information ; And, obtaining uplink control channel resource configuration information of ACK / NACK carrying decoding results of SPS PDSCH from high-level signaling, and determining time domain resources of the uplink control channel carrying ACK / NACK according to the obtained uplink control channel resource configuration information.
  • the time domain resources where the uplink control channel is located may include: a start symbol of the uplink control channel, and a time domain length of the uplink control channel.
  • the ACK / NACK is the decoding result of the SPS PDSCH release PDCCH, that is, the ACK / NACK corresponds to the SPD PDSCH release PDCCH.
  • the terminal obtains the first indication information from the SPS PDSCH release PDCCH.
  • the first indication information determines a feedback slot of the ACK / NACK, and uses the feedback slot as a time slot of an uplink control channel carrying the ACK / NACK, and the first indication information may be PDSCH-to-HARQ-timing indication information;
  • the ARI is obtained from the released PDCCH, and the time domain resource where the uplink control channel carrying the ACK / NACK is located is determined according to the ARI.
  • the time domain resources where the uplink control channel is located may include: a start symbol of the uplink control channel, and a time domain length of the uplink control channel.
  • the above line of control information is A-CSI as an example.
  • the terminal obtains the time domain location information of the uplink control channel in the following ways: the terminal receives the downlink control channel and obtains second indication information (such as A-CSI-to from the downlink control channel).
  • -PDCCH-timing indication information to determine the A-CSI feedback time slot according to the second indication information, and use the feedback time slot as the time slot carrying the A-CSI uplink control channel; and obtain A from the downlink control channel -CSI PUCCH Resource indication information, according to the A-CSI PUCCH Resource indication information, determining a time domain resource where an uplink control channel carrying A-CSI is located; or, obtaining trigger information of A-CSI on PUCCH from the downlink control channel, the trigger information It can be used to indicate PUCCH resource information carrying A-CSI.
  • the trigger information instructs the terminal to send a first CSI report configured by a high layer, where the first CSI report is one of at least one CSI report configured by a high layer, and the CSI report configured by the high layer includes an A-CSI bearer.
  • the time domain resources where the uplink control channel is located may include: a start symbol of the uplink control channel, and a time domain length of the uplink control channel.
  • the downlink control channel (for example, the PDCCH) is used to indicate downlink reference signal (RS) configuration information sent by the base station and to instruct the UE to feedback resource configuration information of the PUCCH used by the corresponding A-CSI report.
  • RS downlink reference signal
  • the downlink reference signal is used for A-CSI measurement, and the downlink reference signal may include non-zero power (NZP) -CSI-RS used for channel measurement, and interference measurement (Inference, Meansure, IM). ) CSI-IM or NZP-CSI-RS.
  • NZP non-zero power
  • IM interference measurement
  • the above line of control information is taken as an example of P-CSI / SP-CSI.
  • the terminal can obtain the time domain position information of the uplink control channel from the high-level parameter configuration.
  • the high-level parameter configuration may be a Radio Resource Control (Radio Resource Control, RRC) configuration.
  • the A-CSI-to-PDCCH-timing indication information and the PDSCH-to-HARQ-timing indication information can share the same DCI bit field.
  • the A-CSI-to-PDCCH- The specific values of the timing indication information and the PDSCH-to-HARQ-timing indication information are configured by different RRC parameters.
  • the A-CSI PUCCH Resource indication information and the ARI can share the same DCI bit field, but the specific values of the A-CSI PUCCH Resource indication information and the ARI are configured by different RRC parameters.
  • Step 302 The terminal obtains time domain position information of the uplink data channel.
  • the uplink data channel may be a PUSCH, and the uplink data channel may be a configured Grant uplink data channel, and the uplink data channel may be used to carry data.
  • the configuration authorization can include two types: first type configuration grant (Type 1 configured grant) and second type configuration authorization (Type 2 configured grant).
  • Transmission based on the first type of configuration authorization can refer to: the network configures the terminal with time-frequency resources (including the period, time-domain offset, and frequency-domain location) through high-level signaling (for example, RRC signaling). ) And transmission parameters. Once data arrives, the terminal can use the configured transmission parameters on the configured time-frequency resources to transmit data.
  • Transmission based on the second type of configuration grant can refer to: the network configures the period of semi-persistent PUSCH (SPS PUSCH) through high-level signaling, and uses DCI to activate uplink grant (UL Grant) to complete the initial SPS PUSCH transmission scheduling, including: initial SPS PUSCH time-frequency location and MCS, precoding configuration and other parameters scheduling, once subsequent data arrives, determine the SPS PUSCH position according to the cycle of the high-level configuration, and according to the initial SPS PUSCH Parameter transmission data.
  • the NR system currently does not support coexistence of the first type configuration authorization and the second type configuration authorization, that is, the terminal can only use the PUSCH configured by one of the first type configuration authorization and the second type configuration authorization. For uplink transmission.
  • the time domain location information of the uplink data channel can be used to indicate the time domain location of the uplink data channel. It can include the time slot number of the uplink data channel, the start symbol of the uplink data channel, and the time domain length of the uplink data channel.
  • the channel and the uplink control channel partially or completely overlap in the time domain. For example, the uplink data channel and the uplink control channel are in the same time slot. In this time slot, the symbols occupied by the uplink data channel and the symbols occupied by the uplink control channel may be the same. of.
  • the terminal determines whether the uplink control channel and the uplink data channel partially or completely overlap in the time domain according to the obtained time domain position information of the uplink control channel and the time domain position information of the uplink data channel.
  • the terminal obtains a transmission period and an offset value of the uplink data channel from a high-level parameter configuration (such as an RRC configuration), and determines a time domain position of the uplink data channel according to the obtained transmission period and offset value.
  • a high-level parameter configuration such as an RRC configuration
  • Step 303 When the time domain position of the uplink control channel and the time domain position of the uplink data channel satisfy the first condition, the terminal silences the uplink control channel, and sends uplink control information and uplink data on the uplink data channel.
  • the silent uplink control channel of the terminal may refer to: the terminal does not send or stops sending the uplink control channel.
  • the first condition includes: the distance between the first symbol and the end symbol of the downlink data channel is greater than or equal to the first threshold, and the difference between the uplink control channel and the start symbol of the uplink data channel is less than or equal to the second threshold, and the difference is equal to the uplink
  • the number of the start symbol of the data channel is subtracted from the number of the start symbol of the uplink control channel.
  • the downlink data channel may correspond to ACK / NACK, and the downlink data channel may be the last downlink data channel among a plurality of downlink data channels corresponding to ACK / NACK.
  • the first symbol may be the start symbol of the uplink control channel and the start symbol of the uplink data channel. For example, if the start symbol of the uplink control channel is the first symbol in a time slot, the start of the uplink data channel The start symbol is the third symbol in the time slot, the first symbol is the start symbol of the uplink control channel; if the start symbol of the uplink control channel is the third symbol in the time slot, the start symbol of the uplink data channel is The first symbol in the slot is the first symbol of the uplink data channel. It should be noted that when the starting symbols of the uplink control channel and the uplink data channel are the same symbol, the first symbol may be the starting symbol of the uplink control channel or the starting symbol of the uplink data channel, which is not limited.
  • the first duration may be the shortest processing time from when the terminal receives the end symbol of the downlink data channel to the start symbol of the ACK / NACK corresponding to the downlink data channel.
  • the first duration may be applicable to all terminals, the first duration, and the first offset value. It can be specified or pre-defined by the protocol or configured by the access network device for the terminal through high-level signaling.
  • the distance between the first symbol and the end symbol of the downlink data channel is greater than or equal to the first threshold may indicate that the terminal has generated an ACK / NACK before sending the first symbol.
  • the terminal did not generate an ACK / NACK before the terminal sent the first symbol.
  • the first symbol is the start symbol of the PUCCH. If the first symbol is greater than or equal to the first threshold, it means that the terminal has generated an ACK / NACK before sending the PUCCH. Assume that the first symbol is the start symbol of the PUSCH. If the first symbol is greater than or equal to the first threshold, it means that the terminal has generated ACK / NACK before sending the PUSCH.
  • the first value is less than or equal to half of the second time duration
  • the second time duration is the shortest processing time specified in the protocol and the terminal receives the UL Grant to send the uplink data channel corresponding to the uplink grant.
  • the minimum duration may be specified by an agreement.
  • the second threshold in addition to the provisions of the agreement, can be obtained automatically by the terminal, or configured by the access network device to the terminal through high-level signaling, or obtained by the terminal and reported to the access network device, etc., without restriction. .
  • the difference between the starting symbol of the uplink control channel and the uplink data channel is less than or equal to the second threshold, which can indicate that when the terminal sends the uplink control channel, it can be based on whether any data has arrived or come from the Media Access Control (Media Access Control,
  • the MAC protocol data unit (Protocol Data Unit, PDU) of the MAC layer indicates whether the uplink data channel will be activated.
  • the terminal before the first symbol, the terminal also received a MAC PDU indication, where the MAC PDU is used to indicate that data has arrived, so that it can ensure that the first condition described in case 1 is fulfilled
  • the uplink data channel will be activated and can send uplink control information and uplink data.
  • the terminal does not receive the MAC PDU indication before the first symbol, it means that no data has arrived and the downlink data channel is not activated.
  • the terminal will not control the uplink
  • the information is carried on the uplink data channel, but instead of skipping the downlink data channel, the ACK / NACK is transmitted directly on the uplink control channel.
  • the upper data channel is GF PUSCH
  • the uplink control channel is PUCCH
  • PUCCH carries ACK / NACK
  • the downlink data channel corresponding to ACK / NACK is PDSCH.
  • PDSCH is scheduled by DCI.
  • the first threshold is T1.
  • the second threshold is T2 (where T2 is greater than or equal to 0).
  • the terminal receives the MAC PDU instruction before sending the GF PUSCH and learns that data has arrived on the logical channel.
  • the terminal can determine the start of the GF PUSCH based on the GF PUSCH start symbol and the PUCCH start symbol.
  • the symbol is earlier than the start symbol of PUCCH, and the number of the start symbol of GF PUSCH minus the start symbol of PUCCH is less than T2, and as can be seen in Figure 4a, the start symbol of GF PUSCH and the end symbol of PDSCH
  • the distance is larger than T1, that is, the first condition described in Case 1 is satisfied, then the terminal can silently PUCCH, and send ACK / NACK and data on GF PUSCH.
  • the terminal receives the MAC PDU instruction before the time point T2 (that is, before sending the PUCCH) and learns that data has arrived on the logical channel.
  • the terminal can use the start symbol of the GF PUSCH and the start symbol of the PUCCH. It is determined that the start symbol of the PUCCH is earlier than the start symbol of the GF PUSCH, and the number of the start symbol of the GF PUSCH minus the start symbol of the PUCCH is less than T2, and it can be seen from FIG.
  • the terminal can silence the PUCCH and send ACK / NACK and data on the GF PUSCH.
  • the start symbol of PUCCH is earlier than the start symbol of GF PUSCH1, and the distance between the start symbol of PUCCH and the end symbol of PDSCH is greater than T1, that is, the first symbol and the end symbol of PDSCH in the first condition A distance greater than or equal to T1 satisfies.
  • the start symbol of PUCCH is earlier than the start symbol of GF PUSCH1, and the distance between the start symbol of GF PUSCH1 and the start symbol of PUCCH is less than T2, but the terminal did not receive the MAC before sending the PUCCH
  • the PDU indicates that the terminal knows that GF PUSCH 1 will not be activated, so the terminal sends an ACK / NACK directly and skips GF PUSCH 1.
  • the terminal if the terminal arrives at the logical channel data corresponding to the GF PUSCH when sending the PUCCH, the terminal performs MAC packet and PHY layer processing on the data, and transmits the processed data on the nearest GF PUSCH, such as: GF PUSCH2 transmission.
  • the first condition includes: a difference between a start symbol of an uplink control channel and an uplink data channel is less than or equal to a second threshold, and / or, a distance between the first symbol and an end symbol of the second downlink control channel is greater than or equal to a third The threshold, and / or, the distance between the first symbol and the end symbol of the downlink reference signal is greater than or equal to the fourth threshold.
  • the second downlink control channel may be a PDCCH for instructing the terminal to send A-CSI
  • the third threshold may be determined by the shortest processing time Z1 of the terminal receiving the second downlink control channel to the terminal sending A-CSI.
  • the third threshold is applicable to All terminals.
  • the third threshold Z1 + the second offset value, Z1 and the offset value can be stipulated by the agreement or defined in advance or configured through high-level parameters without restriction.
  • the distance between the first symbol and the end symbol of the second downlink control channel is greater than or equal to the third threshold may indicate that when the first symbol is sent, the terminal has completed A-CSI measurement and preparation for sending.
  • the configuration information of the downlink reference signal sent by the access network device may be indicated by the second downlink control channel, and the terminal receives the downlink reference signal sent by the access network device according to the configuration information of the downlink reference signal indicated by the second downlink control channel.
  • the second downlink control channel may also indicate the resource configuration information of the PUCCH of the corresponding A-CSI used by the UE for feedback.
  • the downlink reference signal corresponds to A-CSI.
  • the terminal performs channel measurement and / or interference measurement according to the downlink reference signal, so that the terminal generates A-CSI according to the channel measurement and / or interference measurement result.
  • the downlink reference signal may include The measured aperiodic CSI-RS, aperiodic CSI-IM used for interference measurement, or aperiodic NZP CSI-RS; the fourth threshold may be determined by the shortest time period Z2 when the terminal receives the downlink reference signal and sends the A-CSI to the terminal.
  • the fourth threshold applies to all terminals.
  • the fourth threshold Z2 + the second offset value, Z2 and the second offset value can be stipulated by the agreement or defined in advance or configured by high-level parameters without restriction.
  • the distance between the first symbol and the end symbol of the downlink reference signal is greater than or equal to the fourth threshold may indicate that when the first symbol is sent, the terminal has completed the A-CSI measurement.
  • the time when the terminal receives the downlink reference signal is later than the time when the terminal receives the second downlink control channel, and the fourth threshold is smaller than the third threshold. It should be noted that in this application, the values of the third and fourth thresholds are also related to the number of A-CSI reports. The more the number of A-CSI reports, the longer the third and fourth thresholds will be. long.
  • the upper row data channel is GF PUSCH
  • the uplink control channel is PUCCH
  • PUCCH carries A-CSI
  • the second downlink control channel that triggers A-CSI is PDCCH, which is used to measure A-CSI
  • the downlink reference signal is A-RS
  • the second threshold is T2 (where T2 is greater than or equal to 0)
  • the third threshold is T3
  • the fourth threshold is T4.
  • the terminal receives the MAC PDU instruction before sending the GF PUSCH and learns that data has arrived on the logical channel. At this time, the terminal determines the GF PUSCH start symbol based on the GF PUSCH start symbol and the PUCCH start symbol.
  • the number of the GF PUSCH start symbol minus the number of the PUCCH start symbol must be less than T2, and as can be seen in Figure 5a, the GF PUSCH start symbol and the PDCCH end symbol are The distance is greater than T3, and the distance between the start symbol of the GF PUSCH and the end symbol of the downlink reference signal A-RS is greater than T4, that is, the first condition described in case 2 is satisfied, and the terminal can silence the PUCCH and send A-CSI on the GF PUSCH And data.
  • the terminal receives the MAC PDU instruction before time point T2 (that is, before sending PUCCH) and learns that data has arrived on the logical channel. At this time, the terminal determines the starting symbol of GF PUSCH and the starting symbol of PUCCH.
  • the start symbol of the PUCCH is earlier than the start symbol of the GF PUSCH, and the number of the start symbol of the GF PUSCH minus the start symbol of the PUCCH is less than T2, and it can be seen from Figure 5b that the start symbol of the PUCCH and The distance between the end symbol of the PDCCH is greater than T3, and at the same time, the distance between the start symbol of the PUCCH and the end symbol of the downlink reference signal is greater than T4, that is, the first condition described in case 2 is satisfied, the terminal can silence the PUCCH and send A on the PUCCH -CSI and data.
  • the start symbol of PUCCH is earlier than the start symbol of GF PUSCH1, and the distance between the start symbol of PUCCH and the end symbol of PDCCH is greater than T3, which satisfies the first symbol and the end symbol of the second downlink control channel.
  • the distance is greater than or equal to the third threshold.
  • the distance between the start symbol of the PUCCH and the end symbol of the downlink reference signal is greater than T4.
  • the distance between the end symbol that meets the first symbol and the end symbol of the downlink reference signal is greater than or equal to the fourth threshold. .
  • the start symbol of PUCCH is earlier than the start symbol of GF PUSCH1, and the distance between the start symbol of GF PUSCH1 and the start symbol of PUCCH is less than T2, but the terminal did not receive the MAC before sending the PUCCH
  • the PDU indicates that the terminal knows that GF PUSCH 1 will not be activated, so the terminal directly sends A-CSI and skips GF PUSCH 1.
  • the terminal if the terminal arrives at the logical channel data corresponding to the GF PUSCH when sending the PUCCH, the terminal performs MAC packet and PHY layer processing on the data, and transmits the processed data on the nearest GF PUSCH, such as: GF PUSCH2 transmission.
  • the first condition includes: the difference between the starting symbol of the uplink control channel and the uplink data channel is less than or equal to the second threshold, and the difference is equal to the number of the starting symbol of the uplink data channel minus the number of the starting symbol of the uplink control channel .
  • P-CSI / SP-CSI is pre-configured by the network to the terminal, when the difference between the starting symbol of the uplink control channel and the uplink data channel is less than or equal to the second threshold, it means that the uplink data channel will be activated and the terminal can Send P-CSI / SP-CSI on the uplink data channel.
  • the terminal can silence the uplink control channel and carry the uplink control information and data together in the uplink if the time domain position of the uplink control channel and the time domain position of the configured authorized data channel meet certain conditions.
  • the terminal silences the uplink control channel and sends uplink control on the uplink data channel. In this way, the information and data not only avoid the interference caused by the terminal stopping sending the uplink control channel halfway, but also ensure the delay requirement of high priority data.
  • sending an ACK / NACK on the uplink data channel includes: the terminal obtaining a downlink assignment index (Downlink Assignment Information) including the corresponding ACK / NACK.
  • the first information of the DAI) information, an ACK / NACK codebook is determined according to the DAI information, and the ACK / NACK codebook is transmitted on an uplink data channel.
  • the terminal may obtain the first information from a high-level parameter configuration (such as an RRC configuration); or obtain the first information from the first downlink control channel, and the end symbol of the first downlink control information is earlier than the start of the uplink data channel.
  • a high-level parameter configuration such as an RRC configuration
  • the distance between the start symbol of the uplink data channel and the start symbol of the first downlink control channel is less than or equal to the first duration, or between the start symbol of the uplink data channel and the end symbol of the first downlink control channel
  • the distance is less than or equal to the first duration, that is, the sending time of the first downlink control channel is not earlier than the sending time of the downlink data channel corresponding to the last ACK / NACK.
  • the DAI information may be indicated using a separate PDCCH.
  • the DAI information may include the total number of ACK / NACKs that are fed back (eg, 1, 2, ..., N, etc.).
  • DAI_UL_total may be used to indicate DAI information.
  • the terminal determines the ACK / NACK codebook according to DAI_DL_counter and / or DAI_DL_total in the downlink control information. For example, the terminal generates the number indicated by DAI_DL_counter and / or DAI_DL_total in the last downlink control channel detected by the terminal. Corresponding ACK / NACK codebook.
  • DAI_UL_total is configured through high-level parameters, such as: using two-bit values of "00", "01 ',' 10 ', and' 11 'to indicate that the values of DAI_UL_total are 4n + 1, 4n + 2, respectively. , 4n + 3, 4n + 4, where n is an integer greater than or equal to 0.
  • the configured DAI_UL_total is used instead of the downlink control channel Corresponding DAI_DL_counter.
  • DAI_UL_total configured through higher-level parameters has more bits, and DAI_UL_total directly represents the actual value of DAI_UL_total, such as: 12, 13, 21, ..., so that the terminal determines the ACK according to DAI_DL_counter and / or DAI_DL_total
  • the total number of ACK / NACKs determined by statistics is counted. If it is less than DAI_UL_total, the corresponding NACK is supplemented.
  • the high-level parameters need to be configured with 2 DAI_UL_total information, each indicating TB -based corresponding ACK / NACK codebook and CBG-based corresponding ACK / NACK codebook.
  • a PDSCH contains 2 TB or CW, and it does not support airspace ACK / NACK bundling, then a PDSCH corresponds to 2 ACK / NACK, and the number of NACKs needs to be supplemented.
  • a PDSCH contains at most N CBGs (N is configured by high-level parameters), and a CBG corresponds to 1 ACK / NACK, and the number of NACKs to be supplemented needs to be N times.
  • the DAI_UL_total corresponding to the ACK / ACK codebook piggybacked on the downlink data channel is indicated through the first downlink control channel, and the ACK / NACK codebook is determined according to the DAI_UL_total indicated by the first downlink control channel.
  • the first downlink control channel may be used to indicate DAI_UL_total_1 corresponding to the ACK / NACK fed back in the time slot where the GF PUSCH of one or more terminals is located, or may be used to indicate that one or more terminals require DAI_UL_total_2 corresponding to the ACK / NACK carried on the GF PUSCH.
  • the first downlink control channel may include a slot number corresponding to the indicated DAI_UL_total_1, or a slot number corresponding to the indicated DAI_UL_total_2 and a GF PUSCH number in the slot.
  • the terminal sending the ACK / NACK codebook on the uplink data channel includes: the terminal sends an ACK / NACK codebook on the uplink data channel in a punctured manner; or, the terminal sends a reserved time-frequency resource on the uplink data channel. Send ACK / NACK codebook.
  • puncturing may refer to: in the case of carrying data on time-frequency resources of an uplink data channel, mapping an ACK / NACK codebook to a part of resources used to carry data, and removing data on these resources from the original bearer.
  • Data send mapped ACK / NACK information.
  • the reserved time-frequency resources may refer to: some preset symbols and positions on the uplink data channel that can be used to transmit ACK / NACK. Among them, some or all of these reserved time-frequency resources are mapped with ACK / NACK codebooks, and resources that are not mapped with ACK / NACK codebooks in reserved time-frequency resources will not carry data.
  • the network can be pre-configured to reserve time-frequency resources.
  • the terminal can reduce the number of ACK / NACKs included in the ACK / NACK codebook, or truncate the ACK / NACK codebook, or modify the ACK / NACK codebook. Compressed way to transmit ACK / NACK codebook.
  • the terminal in order to ensure the priority requirement of channel transmission, when the time domain positions of the uplink control channel and the uplink data channel do not satisfy the first condition, the terminal sends the uplink according to the priority information.
  • the start symbol of the uplink control channel is earlier than the start symbol of the uplink data channel, and the distance between the start symbol of the uplink control channel and the end symbol of the downlink data channel is greater than or equal to the first threshold If the difference between the start symbol of the uplink control channel and the start symbol of the uplink data channel is not less than the second threshold, if the terminal receives a MAC PDU instruction before sending an ACK / NACK, it knows that the uplink data channel will be activated , The terminal may send the highest priority channel among the uplink control channel and the uplink data channel according to the priority information, or may silently control the uplink control channel. When the uplink data channel arrives, the terminal sends ACK / NACK and data on the uplink data channel. or,
  • the start symbol of the uplink control channel is earlier than the start symbol of the uplink data channel, and the distance between the start symbol of the uplink control channel and the end symbol of the downlink data channel is less than the first threshold, or the uplink control
  • the difference between the start symbol of the channel and the start symbol of the uplink data channel is greater than the second threshold
  • the terminal if the terminal does not receive the MAC PDU indication before sending an ACK / NACK, and does not know whether the uplink data channel will be activated, then The terminal sends ACK / NACK on the uplink control channel. If the uplink data channel is activated during the transmission, the terminal sends the highest priority channel among the uplink control channel and the uplink data channel according to the priority information on the overlapping symbols. or,
  • the terminal sends an uplink data channel. If it is determined that the ACK / NACK overlaps with the uplink data channel during the transmission, the terminal sends the highest priority channel among the uplink control channel and the uplink data channel according to the priority information on the overlapping symbol. or,
  • the start symbol of the uplink control channel is earlier than the start symbol of the uplink data channel, and the distance between the start symbol of the uplink control channel and the end symbol of the downlink control channel is greater than or equal to the third threshold, or The distance from the end symbol of the downlink reference signal is greater than or equal to the fourth threshold, and if the difference between the start symbol of the uplink control channel and the start symbol of the uplink data channel is not less than the second threshold, if the terminal sends A-CSI before After receiving the MAC PDU instruction, knowing that the uplink data channel will be activated, the terminal can send the uplink control channel and the highest priority channel among the uplink data channels according to the priority information, or it can also silence the uplink control channel and arrive on the uplink data channel. At this time, A-CSI and data are sent on the uplink data channel. or,
  • the start symbol of the uplink control channel is earlier than the start symbol of the uplink data channel, and the distance between the start symbol of the uplink control channel and the end symbol of the downlink control channel is less than the third threshold (or The distance between the end symbols of the reference signal is less than the fourth threshold), or if the difference between the start symbol of the uplink control channel and the start symbol of the uplink data channel is greater than the second threshold, if the terminal does not receive it before sending A-CSI
  • the MAC PDU indicates that the terminal does not know whether the uplink data channel will be activated.
  • the terminal sends A-CSI on the uplink control channel. If the uplink data channel is activated during the transmission, the terminal sends uplink control on the overlapping symbols according to the priority information. The highest priority channel among the channel and the uplink data channel.
  • the priority information may be: when the uplink control channel adopts the format one, the priority of the uplink control channel is higher than that of the uplink data channel; In the case of other formats, the priority of the uplink control channel is lower than that of the uplink data channel; or,
  • the priority of the first type of uplink control channel is higher than that of the second type of uplink data channel; the priority of the first type of uplink data channel is higher than that of the first type of uplink control channel; the priority of the first type of uplink data channel Higher than the second type of uplink control channel; the second type of uplink data channel has higher priority than the second type of uplink control channel.
  • the uplink control channel may be determined as the first type of uplink control channel or the second type of uplink control channel according to the MCS table configuration information of the downlink data channel corresponding to the uplink control channel. For example, if the downlink data channel corresponding to the uplink control channel corresponds to a normal 256 or 64-QAM (Quadrature Amplitude Modulation) table, the uplink control channel is the second type of uplink control channel; if the uplink control channel corresponds to Corresponding to the new 64-QAM table, the uplink control channel is the first type of uplink data channel, and the new 64-QAM table contains the lowest modulation and coding scheme (Modulation and Coding Scheme, MCS) corresponding to the lowest The spectral efficiency is less than the lowest spectral efficiency corresponding to the MCS contained in the normal 256 or 64-QAM table.
  • MCS Modulation and Coding Scheme
  • the uplink control channel may be determined as the first type of uplink control channel or the second type of uplink control channel according to the scrambled wireless network temporary identity (RNTI) of the downlink control information corresponding to the uplink control channel.
  • RNTI wireless network temporary identity
  • the uplink control channel corresponds to a normal RNTI (one of C-RNTI, TC-RNTI, P-RNTI, and SI-RNTI)
  • the uplink control channel is a second type of uplink control channel
  • the uplink control channel is The corresponding RNTI used to identify the MCS table used for scheduling data transmission is a new 64-QAM table
  • the uplink control channel is a first type of uplink control channel.
  • the uplink data channel may be determined as the first type of uplink data channel or the second type of uplink data channel according to the MCS table configuration information corresponding to the uplink data channel. For example: if the uplink data channel corresponds to a normal 256 or 64-QAM table, the uplink data channel is a second type of uplink data channel; if the uplink data channel corresponds to a new 64-QAM table, the uplink data channel is the first Type of uplink data channel, the minimum spectral efficiency corresponding to the MCS contained in the new 64-QAM table is smaller than the minimum spectral efficiency corresponding to the MCS contained in the normal 256 or 64-QAM table.
  • the authorized uplink data channel may be configured as the first type of uplink data channel by default.
  • the above mainly describes the method for transmitting uplink control information on a configured authorized uplink data channel for transmission.
  • the following describes the method for transmitting A-CSI on a dynamically scheduled uplink data channel with reference to FIG. 6:
  • FIG. 6 is a flowchart of a method for sending uplink control information according to an embodiment of the present application. As shown in FIG. 3, the method may include steps 601 to 603:
  • Step 601 The terminal obtains time domain position information of the uplink control channel.
  • the uplink control channel is scheduled by the downlink control channel and is mainly used to carry A-CSI.
  • step 301 For the description and the acquisition method of the time domain location information of the uplink control channel, reference may be made to step 301, and details are not described herein again.
  • Step 602 Obtain time domain position information of the uplink data channel.
  • the uplink data channel described in step 602 is a dynamically scheduled data channel, and its time domain location information is carried by downlink control information scheduling the data channel.
  • the downlink control information includes a PUSCH-to-PDCCH-Timing indication.
  • Information for indicating a time slot in which the uplink data channel is located, and the downlink control information includes Time Domain Resource Allocation information for indicating a time domain symbol resource occupied by the uplink data channel, including a start symbol and a duration length.
  • Step 603 When the time domain position of the uplink control channel and the time domain position of the uplink data channel satisfy the second condition, the terminal silences the uplink control channel, and sends uplink control information and uplink data on the uplink data channel.
  • the second condition may include that the distance between the first symbol and the end symbol of the first downlink control channel is greater than or equal to the first threshold, or that the distance between the first symbol and the end symbol of the second downlink control channel is greater than or equal to the first Three thresholds, or the distance between the first symbol and the end symbol of the downlink reference signal is greater than or equal to the fourth threshold.
  • first threshold the third threshold, and the fourth threshold, reference may be made to FIG. 3, and details are not described herein again.
  • the terminal can directly silence the uplink control channel and carry A-CSI and data together on the uplink data channel for transmission.
  • the terminal in order to ensure the priority requirement of channel transmission, when the time domain positions of the uplink control channel and the uplink data channel do not meet the second condition, the terminal sends the uplink according to the priority information.
  • the highest priority channel among the control channel and the uplink data channel For example, the start symbol of the uplink control channel is earlier than the start symbol of the uplink data channel.
  • the distance between the start symbol of the uplink control channel and the end symbol of the second downlink control channel is greater than or equal to the third threshold, or the distance from the downlink reference signal.
  • the terminal can send the uplink control channel and the uplink control channel according to the priority information.
  • the channel with the highest priority among the uplink data channels can also be a quiet uplink control channel.
  • the start symbol of the uplink control channel is earlier than the start symbol of the uplink data channel.
  • the distance between the start symbol of the uplink control channel and the end symbol of the second downlink control channel is less than the third threshold, or the end symbol of the downlink reference signal.
  • the terminal does not receive the MAC PDU indication before sending A-CSI and does not know whether the uplink data channel will be activated, the terminal sends A-CSI on the uplink control channel.
  • the uplink data channel is activated, and the terminal sends the highest priority channel among the uplink control channel and the uplink data channel according to the priority information on the overlapping symbols.
  • the terminal can mute the A-CSI and the uplink control channel when the time domain position of the uplink control channel and the time domain position of the uplink data channel scheduled by the first downlink control channel meet certain conditions.
  • the data is carried on the uplink data channel and sent together to achieve A-CSI piggyback on PUSCH, that is, for the dynamically scheduled uplink data channel, the UCI piggyback on PUSCH timeline is introduced.
  • the uplink control channel is silently transmitted on the uplink.
  • the A-CSI and data are sent on the data channel. In this way, not only the interference problem caused by the terminal stopping sending the uplink control channel midway, but also the problem of high complexity of the receiver's blind solution, and ensuring the delay requirement of high-priority data.
  • the terminal includes a hardware structure and / or a software module corresponding to each function.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is performed by hardware or computer software-driven hardware depends on the specific application of the technical solution and design constraints. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.
  • the terminal may be divided into functional modules according to the foregoing method examples.
  • each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules may be implemented in the form of hardware or software functional modules. It should be noted that the division of the modules in the embodiments of the present application is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
  • FIG. 7 shows a structural diagram of a communication device.
  • the communication device may be a terminal, or a chip on the terminal, or a system on a chip.
  • the communication device may be used to perform functions of the terminal involved in the foregoing embodiments.
  • the communication device shown in FIG. 7 includes: an obtaining unit 70 and a sending unit 71;
  • the uplink data channel is a configured authorized uplink channel
  • the obtaining unit 70 is configured to obtain a slot number of the uplink control channel, a start symbol of the uplink control channel, and a time domain length of the uplink control channel, and obtain The time slot number of the uplink data channel, the start symbol of the uplink data channel, and the time domain position information of the time domain length of the uplink data channel, where the uplink data channel and the uplink control channel partially or completely overlap in the time domain; for example, an acquisition unit 70 supports the communication device to perform steps 301 and 302.
  • the sending unit 71 is configured to: if the time domain position of the uplink control channel and the time domain position of the uplink data channel meet the first condition, silence the uplink control channel, and send uplink control information and uplink data on the uplink data channel.
  • the sending unit 71 supports the communication device to perform step 303.
  • the uplink data channel is scheduled by the first downlink control channel, and the obtaining unit 70 is configured to obtain a slot number and uplink control of an uplink control channel for carrying aperiodic channel state information A-CSI.
  • the start symbol of the channel and the time domain length of the uplink control channel and obtain the time slot number of the uplink data channel, the start symbol of the uplink data channel, and the time domain position information of the time domain length of the uplink data channel, where the uplink data channel and The uplink control channels partially or completely overlap in the time domain; for example, the obtaining unit 70 supports the communication device to perform steps 601 and 602.
  • the sending unit 71 is configured to: when the time domain position of the uplink control channel and the time domain position of the uplink data channel satisfy the second condition, silence the uplink control channel, and send uplink control information and uplink data on the uplink data channel.
  • the sending unit 71 supports the communication device to perform step 603.
  • the communication device provided in the embodiment of the present application is configured to perform a function of the communication device in the foregoing method for sending uplink control information, and thus can achieve the same effect as the method for sending uplink control information.
  • the communication device shown in FIG. 7 may include a processing module and a communication module.
  • the processing module is used to control and manage the actions of the communication device.
  • the processing module is used to support the communication device to support steps 301, 302, 601, 602, and other processes that perform the techniques described herein.
  • the communication module is configured to support the communication device to perform steps 303 and 603 and communicate with other network entities, such as communication with the functional module or network entity shown in FIG. 1.
  • the communication device may further include a storage module for storing program code and data of the communication device.
  • the processing module may be a processor or a controller. It may implement or execute various exemplary logical blocks, modules, and circuits described in connection with the present disclosure.
  • a processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • the communication module may be a transceiver circuit or a communication interface.
  • the memory module may be a memory. When the processing module is a processor, the communication module is a communication interface, and the storage module is a memory, the communication device shown in FIG. 7 may be the communication device shown in FIG. 2.
  • FIG. 8 is a structural diagram of a system for sending uplink control information according to an embodiment of the present application. As shown in FIG. 8, the system for sending uplink control information may include a terminal 80 and an access network device.
  • the terminal 80 may have the same function as the communication device shown in FIG. 7, and details are not described herein again.
  • the terminal can silence the uplink control channel and carry the uplink control information and data on the uplink data channel when the time domain position of the uplink control channel and the time domain position of the uplink data channel meet certain conditions.
  • Send implement UCI piggyback and PUSCH.
  • the terminal stop transmitting the interference problem caused by the uplink control channel midway, but also the receiver can solve the problem of high complexity, and guarantee the delay requirement of high priority data.
  • the disclosed apparatus and method may be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the modules or units is only a logical function division.
  • multiple units or components may be divided.
  • the combination can either be integrated into another device, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may be one physical unit or multiple physical units, that is, may be located in one place, or may be distributed to multiple different places. . Some or all of the units may be selected according to actual needs to achieve the objective of the solution of this embodiment.
  • the functional units in the embodiments of the present application may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
  • the above integrated unit may be implemented in the form of hardware or in the form of software functional unit.
  • the integrated unit When the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a readable storage medium.
  • the technical solution of the embodiments of the present application is essentially a part that contributes to the existing technology or all or part of the technical solution may be embodied in the form of a software product that is stored in a storage medium. Included are several instructions for causing a device (which can be a single-chip microcomputer, a chip, etc.) or a processor to execute all or part of the steps of the method described in the embodiments of the present application.
  • the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本申请实施例公开了一种发送上行控制信息的方法、设备及系统,以解决现有终端发送上行控制信息导致的数据时延或者干扰或者盲解复杂度较高的问题。所述方法包括:终端获取上行控制信道的时隙编号、上行控制信道的起始符号和上行控制信道的时域长度、以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度;在上行控制信道的时域位置和上行数据信道的时域位置满足第一条件的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。

Description

一种发送上行控制信息的方法、设备及系统
本申请要求于2018年08月03日提交国家知识产权局、申请号为201810879523.6、申请名称为“一种发送上行控制信息的方法、设备及系统”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信技术领域,尤其涉及一种发送上行控制信息的方法、设备及系统。
背景技术
目前,下一代无线(Next Radio,NR)系统中,物理上行数据信道(Physical Uplink Shared Channel,PUSCH)与物理上行控制信道(Physical Uplink Control Channel,PUCCH)不可以同时传输。当PUCCH与PUSCH时域重叠时,为了保证PUCCH上承载的上行控制信息(Uplink Control Information,UCI)与PUSCH上承载的数据的正常传输,NR系统复用长期演进(Long Term Evolution-Advanced,LTE)中的UCI piggyback on PUSCH机制,静默PUCCH,将PUCCH中的UCI(如:确认(Acknowledgement,ACK)/否定确认(Negative Acknowledgement,NACK)、信道状态信息(Channel State Information,CSI)等)携带在PUSCH上与数据一起传输。
但是,NR系统中,PUCCH和PUSCH的时域位置和时域长度灵活配置,在某些时候PUCCH与PUSCH虽然时域重叠,但是不对齐(或者不完全重叠),终端在发送PUSCH时没有生成ACK/NACK,或者在发送PUCCH时,终端还不知道后续是否有PUSCH与之存在时域重叠,此时,终端不会直接执行UCI piggyback on PUSCH,而是直接发送PUCCH,不发送PUSCH,但这样不能保证高优先级数据(如极高可靠性低时延通信(Ultra-reliable/low latency communication,URLLC))的时延;或者,终端先发送PUCCH,当后续有数据到达时,停止发送PUCCH,转发PUSCH,虽然这样能够保证数据的时延,但是会对其他终端的PUCCH传输造成干扰;或者,终端同时发送PUCCH和PUSCH,但这样会提高接收端(如基站)的盲解复杂度。
发明内容
本申请提供一种发送上行控制信息的方法、设备及系统,以解决现有终端发送上行控制信息导致的数据时延或者干扰或者盲解复杂度较高的问题。
为达到上述目的,本申请采用如下技术方案:
第一方面,本申请提供一种发送上行控制信息的方法,该方法包括;终端获取上行控制信道的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息,其中,上行数据信道为配置授权的上行信道,上行数据信道与上行控制信道在时域上部分或者全部重叠;在上行控制信道的时域位置和上行数据信道的时域位置满足第一条件的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。基于本申请提供的方法,终端可以在上行控制信道的时域 位置和配置授权的上行数据信道的时域位置满足一定条件的情况下,才静默上行控制信道,将上行控制信息和数据一起携带在上行数据信道上发送,实现UCI piggyback on PUSCH,即:对于配置授权的上行数据信道,引入UCI piggyback on PUSCH的timeline,在满足timeline的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息和数据,如此,不仅避免终端中途停止发送上行控制信道带来的干扰问题,而且保证高优先级数据的时延要求。
在第一方面的第一种可能的设计中,结合第一方面,上行控制信息包括确认(ACK)/否定确认(NACK),第一条件包括:第一符号与下行数据信道的结束符号的距离大于或者等于第一门限,上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限,差值等于上行数据信道的起始符号的编号减去上行控制信道的起始符号的编号,第一符号为上行控制信道的起始符号和上行数据信道的起始符号中时间最前的符号。如此,可以保证终端在发送上行数据信道时,已经生成ACK/NACK,并且在准备发送上行控制信道时,已经可以判定重叠的上行数据信道是否会被激活,从而可以使终端在上行数据信道被激活的前提下直接静默上行控制信道,将ACK/NACK和数据一起携带在上行数据信道上发送,实现UCI piggyback on PUSCH;在上行数据信道不会被激活的前提下,直接发送上行控制信道。
在第一方面的第二种可能的设计中,结合第一方面的第一种可能的设计,终端在上行数据信道上发送上行控制信息,包括:获取包括ACK/NACK对应的下行分配索引(Downlink Assignment Idex,DAI)信息,第一信息,根据DAI信息确定ACK/NACK码本,在上行数据信道上发送ACK/NACK码本。如此,终端可以根据DAI信息发送ACK/NACK。
在第一方面的第三钟可能的设计中,结合第一方面的第二种可能的设计,终端获取第一信息,包括:终端从高层参数配置中获取第一信息。如此,终端可以通过现有参数配置获取第一信息,无需新增信令,降低信令开销。
在第一方面的第四种可能的设计中,结合第一方面的第二种可能的设计,终端获取第一信息,包括:终端从第一下行控制信道中获取第一信息,其中,第一下行控制信息的结束符号早于上行数据信道的起始符号,上行数据信道的起始符号与第一下行控制信道的起始符号的距离小于或者等于第一时长,或者,上行数据信道的起始符号与第一下行控制信道的结束符号间的距离小于或者等于第一时长,第一时长为协议规定的、终端接收下行数据信道到发送下行数据信道对应的ACK/NACK的最短处理时长,第一时长用于确定第一门限。如此,可以在发送ACK/NACK对应的PDSCH时,通过单独的PDCCH来指示DAI信息。
在第一方面的第五种可能的设计中,结合第一方面的第二种可能的设计至第一方面的第四种可能的设计中的任一种可能的设计,终端在上行数据信道上发送ACK/NACK码本,包括:终端采用打孔的方式在上行数据信道上发送ACK/NACK码本;或者,终端在上行数据信道的预留时频资源上发送ACK/NACK码本。如此,终端可以通过不同方式发送ACK/NACK码本,提高了ACK/NACK码本发送的灵活性。
在第一方面的第六种可能的设计中,结合第一方面,上行控制信息包括非周期性信道状态信息(Aperiodic Channel State Information,A-CSI),第一条件包括:上行控 制信道与上行数据信道的起始符号间的差值小于或者等于第二门限;和/或,第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,第二下行控制信道用于指示终端发送A-CSI;和/或,第一符号与下行参考信号的结束符号的距离大于或者等于第四门限,下行参考信号的配置信息可由第二下行控制信道指示,下行参考信号与A-CSI对应,如:终端根据下行参考信号进行信道测量和/或干扰测量,以便终端根据信道测量和/或干扰测量后结果生成A-CSI;其中,差值等于上行数据信道的起始符号的编号减去上行控制信道的起始符号的编号,第一符号为上行控制信道的起始符号和上行数据信道的起始符号中时间最前的符号,第三门限大于或等于第四门限。如此,可以保证终端在发送上行数据信道时,已经完成A-CSI的测量,并且在准备发送上行控制信道时,已经可以判定重叠的上行数据信道是否会被激活,从而可以在上行数据信道被激活的前提下,使终端直接静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上发送,实现UCI piggyback on PUSCH;在上行数据信道不会别激活的前提下,直接发送上行控制信道。
在第一方面的第七种可能的设计中,结合第一方面,上行控制信息包括周期性信道状态信息(Periodic Channel State Information,P-CSI)或者半持续性信道状态信息(Semi-persistent Channel State Information,SP-CSI),第一条件包括:上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限,差值等于上行数据信道的起始符号的编号减去上行控制信道的起始符号的编号。如此,终端可以在发送P-CSI/SP-CSI时,就可以确定后续有上行数据信道被激活,则直接静默上行控制信道,将P-CSI/SP-CSI和数据一起携带在上行数据信道上发送,实现UCI piggyback on PUSCH。
在第一方面的第八种可能的设计中,结合第一方面的第一种可能的设计或第一方面的第六种可能的设计或第一方面的第七种可能的设计,第二门限由第一取值确定,第一取值小于第二时长的一半,第二时长为协议规定的、终端接收上行授权UL Grant到发送上行授权对应的上行数据信道的最短处理时长。如此,根据授权的上行数据信道的最短处理时间确定配置授权的上行数据信道对应的第二时长,简单易行。
在第一方面的第九种可能的设计中,结合第一方面或第一方面的任一种可能的设计,所述方法还包括:在上行控制信道和上行数据信道的时域位置不满足第一条件的情况下,终端按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道,其中,优先级信息可以包括:在上行控制信道采用格式一的情况下,上行控制信道的优先级高于上行数据信道;在上行控制信道采用除格式一之外的其他格式的情况下,上行控制信道的优先级低于上行数据信道;或者,第一类型的上行控制信道的优先级高于第二类型的上行数据信道;第一类型的上行数据信道的优先级高于第一类型的上行控制信道;第一类型的上行数据信道的优先级高于第二类型的上行控制信道;第二类型的上行数据信道的优先级高于第二类型的上行控制信道。如此,可以在不能执行UCI piggyback on PUSCH的情况下,按照优先级原则发送优先级较高的信道,满足用户的优先级需求。
第二方面,本申请提供一种通信装置,该通信装置可以为通信网络中的终端,还可以为终端中的芯片或者片上系统,该通信装置可以实现上述各方面或者各可能的设 计中通信装置所执行的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如:该通信装置可以包括:获取单元,发送单元;
获取单元,用于获取上行控制信道的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息,其中,上行数据信道为配置授权的上行信道,上行数据信道与上行控制信道在时域上部分或者全部重叠;
发送单元,用于在上行控制信道的时域位置和上行数据信道的时域位置满足第一条件的情况下,静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。
其中,通信装置的具体实现方式可以参考第一方面或第一方面的任一种可能的设计提供的发送上述控制信息的方法中通信装置的行为功能,在此不再重复赘述。因此,该提供的通信装置可以达到与第一方面或者第一方面的任一种可能的设计相同的有益效果。
第三方面,提供了一种通信装置,包括:处理器和存储器;该存储器用于存储计算机执行指令,当该通信装置运行时,该处理器执行该存储器存储的该计算机执行指令,以使该通信装置执行如上述第一方面或者第一方面的任一种可能的设计所述的发送上述控制信息的方法。
第四方面,提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机可以执行上述第一方面或者上述方面的任一种可能的设计所述的发送上述控制信息的方法。
第五方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机可以执行上述第一方面或者上述方面的任一种可能的设计所述的发送上述控制信息的方法。
第六方面,提供了一种芯片系统,该芯片系统包括处理器、通信接口,用于支持通信装置实现上述方面中所涉及的功能,例如处理器获取上行控制信道的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息,其中,上行数据信道为配置授权的上行信道,上行数据信道与上行控制信道在时域上部分或者全部重叠;在上行控制信道的时域位置和上行数据信道的时域位置满足第一条件的情况下,静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存通信装置必要的程序指令和数据。该芯片系统,可以由芯片构成,也可以包含芯片和其他分立器件。
其中,第三方面至第六方面中任一种设计方式所带来的技术效果可参见上述第一方面或者第一方面的任一种可能的设计所带来的技术效果,不再赘述。
第七方面,本申请提供又一种发送上述控制信息的方法,终端获取用于承载非周期信道状态信息A-CSI的上行控制信道的的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始 符号和上行数据信道的时域长度时域位置信息,其中,所述上行数据信道由第一下行控制信道调度,上行数据信道与上行控制信道在时域上部分或者全部重叠;在上行控制信道的时域位置和上行数据信道的时域位置满足第二条件的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。基于本申请提供的方法,终端可以在上行控制信道的时域位置和第一下行控制信道调度的上行数据信道的时域位置满足一定条件的情况下,静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上发送,实现A-CSI piggyback on PUSCH,即:对于动态调度的上行数据信道,引入UCI piggyback on PUSCH的timeline,在满足timeline的情况下,静默上行控制信道,在上行数据信道上发送A-CSI和数据,如此,保障在发送上行数据信道时可以完成信道测量和测量报告的生成。
在第七方面的第一种可能的设计中,结合第七方面,第二条件包括:第一符号与第一下行控制信道的结束符号的距离大于或者等于第一门限,第一符号为上行控制信道的起始符号和上行数据信道的起始符号中时间最前的符号。如此,可以保证终端在准备发送A-CSI时,已经完成第一下行控制信道的解析并完成上行数据信道发送的准备工作,可以使终端直接静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上发送,实现A-CSI piggyback on PUSCH。
在第七方面的第二种可能的设计中,结合第七方面或第七方面的第一种可能的设计,第二条件包括:第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,第一符号为上行控制信道的起始符号和上行数据信道的起始符号中时间最前的符号,第二下行控制信道用于指示终端发送A-CSI,第三门限由预设的、终端接收到第二下行控制信道到终端发送A-CSI的最短处理时长确定。如此,可以保证终端在发送上行数据信道时,已经完成A-CSI的测量,可以使终端直接静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上发送,实现A-CSI piggyback on PUSCH。
在第七方面的第三种可能的设计中,结合第七方面或第七方面的第一种可能的设计,第二条件包括:第一符号与下行参考信号的结束符号的距离大于或者等于第四门限,第一符号为上行控制信道的起始符号和上行数据信道的起始符号中时间最前的符号,下行参考信号的配置信息可由所述第二下行控制信道指示、下行参考信号与A-CSI对应,如:终端根据下行参考信号进行信道测量和/或干扰测量,以便终端根据信道测量和/或干扰测量后结果生成A-CSI;第四门限由终端接收到下行参考信号到终端发送A-CSI的最短处理时长确定。如此,可以保证终端在发送上行数据信道时,已经完成A-CSI的测量,可以使终端直接静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上发送,实现A-CSI piggyback on PUSCH。
在第七方面的第四种可能的设计中,结合第七方面或第七方面的任一种可能的设计,所述方法还包括:当第一上行信道与第二上行信道时域位置不满足第二条件时,终端根据优先级信息发送上行控制信道和上行数据信道中优先级最高的信道,其中,优先级信息为:在上行控制信道采用格式一的情况下,上行控制信道的优先级高于上行数据信道;在上行控制信道采用除格式一之外的其他格式的情况下,上行控制信道的优先级低于上行数据信道;或者,第一类型的上行控制信道的优先级高于第二类型的上行数据信道;第一类型的上行数据信道的优先级高于第一类型的上行控制信道; 第一类型的上行数据信道的优先级高于第二类型的上行控制信道;第二类型的上行数据信道的优先级高于第二类型的上行控制信道。如此,可以在timeline不满足的情况下,按照优先级原则发送优先级较高的信道,满足用户的优先级需求。
第八方面,本申请提供一种通信装置,该通信装置可以为通信网络中的终端,还可以为终端中的芯片或者片上系统,该通信装置可以实现上述各方面或者各可能的设计中通信装置所执行的功能,所述功能可以通过硬件实现,也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个上述功能相应的模块。如:该通信装置可以包括:获取单元、发送单元。
获取单元,用于获取用于承载非周期信道状态信息A-CSI的上行控制信道的的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息,其中,所述上行数据信道由第一下行控制信道调度,上行数据信道与上行控制信道在时域上部分或者全部重叠;
发送单元,用于在上行控制信道的时域位置和上行数据信道的时域位置满足第二条件的情况下,静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。
其中,通信装置的具体实现方式可以参考第七方面或第七方面的任一种可能的设计提供的发送上述控制信息的方法中通信装置的行为功能,在此不再重复赘述。因此,该提供的通信装置可以达到与第七方面或者第七方面的任一种可能的设计相同的有益效果。
第九方面,提供了一种通信装置,包括:处理器和存储器;该存储器用于存储计算机执行指令,当该通信装置运行时,该处理器执行该存储器存储的该计算机执行指令,以使该通信装置执行如上述第七方面或者第七方面的任一种可能的设计所述的发送上述控制信息的方法。
第十方面,提供了一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机可以执行上述第七方面或者上述方面的任一种可能的设计所述的发送上述控制信息的方法。
第十一方面,提供了一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机可以执行上述第七方面或者上述方面的任一种可能的设计所述的发送上述控制信息的方法。
第十二方面,提供了一种芯片系统,该芯片系统包括处理器、通信接口,用于支持通信装置实现上述方面中所涉及的功能,例如处理器获取用于承载A-CSI的上行控制信道的的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息;在上行控制信道的时域位置和上行数据信道的时域位置满足第二条件的情况下,静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。在一种可能的设计中,所述芯片系统还包括存储器,所述存储器,用于保存通信装置必要的程序指令和数据。该芯片系统,可以由芯片构成,也可以包含芯片和其他分立器件。
其中,第九方面至第十二方面中任一种设计方式所带来的技术效果可参见上述第七方面或者第七方面的任一种可能的设计所带来的技术效果,不再赘述。
第十三方面,本申请提供一种发送上行控制信息的系统,包括:如第二方面至第六方面所述的通信装置、接入网设备;或者,包括如第八方面至第十二方面所述的通信装置以及接入网设备。
附图说明
图1为本申请实施例提供的一种系统架构的简化示意图;
图2为本申请实施例提供的一种通信装置的组成示意图;
图3为本申请实施例提供的一种发送上行控制信息的方法流程图;
图4a为本申请实施例提供的一种发送ACK/NACK的示意图;
图4b本申请实施例提供的又一种发送ACK/NACK的示意图;
图4c为本申请实施例提供再一种发送ACK/NACK的示意图;
图5a为本申请实施例提供的一种发送A-CSI的示意图;
图5b本申请实施例提供的又一种发送A-CSI的示意图;
图5c为本申请实施例提供再一种发送A-CSI的示意图;
图6为本申请实施例提供的又一种发送上行控制信息的方法流程图;
图7为本申请实施例提供的一种终端的组成示意图;
图8为本申请实施例提供的一种发送上行控制信息的系统组成示意图。
具体实施方式
下面结合附图对本申请实施例的实施方式进行详细描述。
本申请实施例提供的发送上行控制信息的方法可以应用于图1所示的通信系统中,该通信系统可以为5G移动通信系统,还可以为长期演进(Long Term Evolution,LTE)系统,还可以为其他移动通信系统,不予限制。如图1所示,该通信系统可以包括接入网设备、以及多个终端,终端可以通过无线网络与接入网设备建立连接。需要说明的是,图1仅为示例性框架图,图1中包括的节点的数量不受限制,且除图1所示功能节点外,还可以包括其他节点,如:核心网设备、网关设备、应用服务器等等,不予限制。
其中,图1中的接入网设备可以为基站(NodeB,NB)、宏站、微基站、室内热点、中继节点、下一代基站(Generation NodeB,gNB)、收发点(Transmission Reception Point,TRP)、传输点(Transmission Point,TP)等任一接入节点。接入网设备具有向终端发送下行数据、向终端发送用于控制终端上行传输的调度信息(如:下行控制信息(Downlink Control Information,DCI))以及接收终端发送的上行数据传输等功能。其中,在本申请中,下行数据承载在下行数据信道上向终端发送,下行数据信道可以为物理下行共享信道(Physical Downlink Share Channel,PDSCH);DCI承载在下行控制信道上向终端发送,下行控制信息可以为物理下行控制信道(Physical Downlink Control Channel,PDCCH)。
图1中的终端可以为手机、平板电脑、智能打印机、火车探测器、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)、电脑、膝上型计算机、手持式通信设备、手持式计算设备、卫星无线设备、无线调制解调器 卡、电视机顶盒(Set Top Box,STB)、用户驻地设备(Customer Premise Equipment,CPE)、以及用于在无线系统上进行通信的其它设备中的任一设备。终端具有收集数据、接收接入网设备下发的下行数据以及调度信息、向接入网设备发送无线电波等功能。其中,终端向接入网设备发送无线电波可以包括:终端向接入网设备发送上行数据以及上行控制信息,在本申请中,上行数据承载在上行数据信道上向接入网设备发送,上行数据信道可以为物理上行共享信道(Physical Uplink Shared Channel,PUSCH)。上行控制信息承载在上行控制信道上向接入网设备,上行控制信道可以为物理上行控制信道(Physical Uplink Control Channel,PUCCH)。
在图1所示系统中,当终端在重叠的时域位置上发送上行数据信道和上行控制信道时,若上行数据信道和上行控制信道满足一定条件,则终端静默上行控制信道,在上行数据信道上发送上行控制信息和数据。具体的,该可能的设计可参照下述图3或者图6中所述。
具体的,为了实现本申请实施例提供的发送上行控制信息的方法,图1中的终端可以包括图2所示部件。图2为本申请实施例提供的一种通信装置的组成示意图,如图2所示,该通信装置200包括至少一个处理器201,通信线路202,存储器203以及至少一个通信接口204。其中,处理器201,存储器203以及通信接口204三者之间可以通过通信线路202连接。
处理器201可以是一个中央处理器(Central Processing Unit,CPU),也可以是特定集成电路(Application Specific Integrated Circuit,ASIC),或者是被配置成实施本申请实施例的一个或多个集成电路,例如:一个或多个数字信号处理器(Digital Signal Processor,DSP),或,一个或者多个现场可编程门阵列(Field Programmable Gate Array,FPGA)。
通信线路202可包括一通路,用于在上述组件之间传送信息。
存储器203可以是只读存储器(Read-Only Memory,ROM)或可存储静态信息和指令的其他类型的静态存储设备,随机存取存储器(Random Access Memory,RAM)或者可存储信息和指令的其他类型的动态存储设备,也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、只读光盘(Compact Disc Read-Only Memory,CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、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,但不限于此。存储器203可以是独立存在,通过通信线路202与处理器201相连接。存储器203也可以和处理器201集成在一起。其中,存储器203用于存储执行指令或者应用程序代码,并由处理器201来控制执行,实现本申请下述实施例提供的发送上行控制信息的方法,如:实现图3或图6所示方法。
通信接口204,用于与其他设备或通信网络通信,可以使用任何收发器一类的装置,如以太网,无线接入网(Radio Access Network,RAN),无线局域网(Wireless Local Area Networks,WLAN)等。
作为一种可实现方式,处理器201可以包括一个或多个CPU,例如图2中的CPU0和CPU1。作为另一种可实现方式,通信装置200可以包括多个处理器,例如图2中 的处理器201和处理器207。作为再一种可实现方式,通信装置200还可以包括输出设备205和输入设备206。
下面结合图1所示系统,对本申请实施例提供的发送上行控制信息的方法进行描述。
图3为本申请实施例提供的一种发送上行控制信息的方法流程图,如图3所示,该方法可以包括步骤301-步骤303:
步骤301:终端获取上行控制信道的时域位置信息。
其中,上述终端可以为图1中的任一终端。
其中,上行控制信道可以为PUCCH,可以用于承载上行控制信息,上行控制信息可以为UCI,可以包括ACK/NACK,或者周期性信道状态信息(Periodic Channel State Information,P-CSI),或者半持续性信道状态信息(Semi-Persistent Channel State Information,SP-CSI),或者非周期性信道状态信息(Aperiodic Channel State Information,P-CSI)等。
上行控制信道的时域位置信息可以用于指示上行控制信道的时域位置,可以包括上行控制信道的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度等信息。上行控制信道的时域编号可以用于指示上行数据信道所占用的时隙(slot),上行控制信道的起始符号指上行控制信道的时域位置上位于最前面的符号,上行控制信道的时域长度是指上行控制信道所占用的符号数量,符号越多,时域长度越长,反之,时域长度越短。需要说明的是,在本申请中,上行控制信道的时域位置除包括可用符号之外,还可能包括不可用符号(如空闲符号),可用符号指用于承载上行控制信息的符号。例如,PUCCH的时域编号为slot1,PUCCH的起始符号为slot1中的第3个符号,若PUCCH的时域长度为10,则PUCCH时域位置为slot1上从第3个符号~第12个符号。
以上行控制信息为ACK/NACK为例,终端可以通过下述方式一~方式三获取上行控制信道的时域位置信息。
方式一,所述ACK/NACK为动态调度的下行数据信道(如:PDSCH)的译码结果,所述动态调度的下行数据信道指由下行控制信道调度的下行数据信道,此时,终端从下行控制信道中获取第一指示信息,根据该第一指示信息确定下行数据信道的译码结果ACK/NACK的反馈时隙,将该反馈时隙作为承载ACK/NACK的上行控制信道的时隙,第一指示信息可以为PDSCH-to-HARQ-timing指示信息;以及,从下行控制信道中获取ACK/NACK资源指示(ACK/NACK Resource indication,ARI),根据ARI确定承载ACK/NACK的上行控制信道所在的时域资源。其中,上行控制信道所在的时域资源可以包括:上行控制信道的起始符号以及上行控制信道的时域长度等。
方式二,所述ACK/NACK为半持续性调度(Semi-persistent Scheduling,SPS)的下行数据信道(如:SPS PDSCH)的译码结果,SPS PDSCH的初次传输由激活PDCCH调度,SPS PDSCH后续周期性传输的位置由接入网设备通过高层信令配置给终端,此时,终端从激活PDCCH中获取第一指示信息,根据该第一指示信息确定每个SPS PDSCH对应的ACK/NACK的反馈时隙与该SPS PDSCH所在时隙的定时偏移值,根据该定时偏移值确定承载ACK/NACK的上行控制信道的时隙,其中,第一指示信息 可以为PDSCH-to-HARQ-timing指示信息;以及,从高层信令中获取承载SPS PDSCH的译码结果ACK/NACK的上行控制信道资源配置信息,根据获取到的上行控制信道资源配置信息确定承载ACK/NACK的上行控制信道的时域资源。其中,上行控制信道所在的时域资源可以包括:上行控制信道的起始符号以及上行控制信道的时域长度等。
方式三,所述ACK/NACK为SPS PDSCH的释放PDCCH的译码结果,即所述ACK/NACK对应SPS PDSCH的释放PDCCH,此时,终端从SPS PDSCH的释放PDCCH中获取第一指示信息,根据该第一指示信息确定所述ACK/NACK的反馈时隙,将该反馈时隙作为承载ACK/NACK的上行控制信道的时隙,第一指示信息可以为PDSCH-to-HARQ-timing指示信息;以及,从释放PDCCH中获取ARI,根据ARI确定承载ACK/NACK的上行控制信道所在的时域资源。其中,上行控制信道所在的时域资源可以包括:上行控制信道的起始符号以及上行控制信道的时域长度等。
以上行控制信息为A-CSI为例,终端通过下述方式获取上行控制信道的时域位置信息:终端接收下行控制信道,从下行控制信道中获取第二指示信息(如:A-CSI-to-PDCCH-timing指示信息),根据该第二指示信息确定A-CSI的反馈时隙,将该反馈时隙作为承载A-CSI的上行控制信道的时隙;以及,从下行控制信道中获取A-CSI PUCCH Resource指示信息,根据A-CSI PUCCH Resource指示信息确定承载A-CSI的上行控制信道所在时域资源;或者,从下行控制信道中获取A-CSI on PUCCH的触发信息,所述触发信息可以用于指示承载A-CSI的PUCCH资源信息。一种实现方式是,触发信息指示终端发送高层配置的第一CSI报告,所述第一CSI报告是高层配置的至少一个CSI报告中的一个,所述高层配置的CSI报告包括承载A-CSI的PUCCH资源信息。其中,上行控制信道所在的时域资源可以包括:上行控制信道的起始符号以及上行控制信道的时域长度等。在该实现方式中,下行控制信道(例如,PDCCH)用于指示基站发送的下行参考信号(Reference Signal,RS)配置信息以及指示UE反馈对应的A-CSI report所用的PUCCH的资源配置信息。其中,下行参考信号用于A-CSI的测量,下行参考信号可以包括用于信道测量的非零功率(Non-Zero-Power,NZP)-CSI-RS、以及用于干扰测量(Inference Meansure,IM)的CSI-IM或NZP-CSI-RS。
以上行控制信息为P-CSI/SP-CSI为例,终端可以从高层参数配置中获取上行控制信道的时域位置信息。其中,高层参数配置可以为无线资源控制(Radio Resource Control,RRC)配置。
需要说明的是,在上述实现方法中,A-CSI-to-PDCCH-timing指示信息与PDSCH-to-HARQ-timing指示信息可以共用相同的DCI比特域,但是,A-CSI-to-PDCCH-timing指示信息、PDSCH-to-HARQ-timing指示信息的具体取值由不同的RRC参数配置。类似地,A-CSI PUCCH Resource指示信息与ARI可以共用相同的DCI比特域,但是,A-CSI PUCCH Resource指示信息与ARI具体取值由不同的RRC参数配置。
步骤302:终端获取上行数据信道的时域位置信息。
其中,上行数据信道可以为PUSCH,所述上行数据信道可以为配置授权(Configured Grant)的上行数据信道,所述上行数据信道可以用于承载数据。在本申 请中,配置授权可以包括第一类型配置授权(Type 1 configured grant)和第二类型配置授权(Type 2 configured grant)两种类型。基于第一类型配置授权的传输(transmission with type 1 configure grant)可以指:网络通过高层信令(例如,RRC信令)给终端配置好时频资源(包括周期、时域偏移、频域位置)和传输参数,一旦有数据到达,终端就可以在配置的时频资源上使用配置的传输参数来传输数据。基于第二类型配置授权的传输(transmission with type 2 configure grant)可以指:网络通过高层信令配置好半持续性PUSCH(SPS PUSCH)的周期,并使用激活上行授权(UL Grant)的DCI完成初始SPS PUSCH的传输调度,包括:初始SPS PUSCH的时频位置以及MCS、预编码配置等其他参数的调度,后续一旦有数据到达,按照高层配置的周期确定SPS PUSCH的位置、以及按照初始SPS PUSCH的参数传输数据。需要说明的是,目前NR系统不支持第一类型配置授权和第二类型配置授权共存工存,即:终端只能采用第一类型配置授权和第二类型配置授权其中一种方式所配置的PUSCH来进行上行传输。
上行数据信道的时域位置信息可以用于指示上行数据信道的时域位置,可以包括上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度等信息,上行数据信道与上行控制信道在时域上部分或者全部重叠,如:上行数据信道和上行控制信道处于同一时隙,在该时隙上,上行数据信道占用的符号和上行控制信道占用的符号可以是相同的。其中,上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度的相关定义可参照上述上行控制信道的时隙编号、上行控制信道的起始符号和上行控制信道的时域长度的相关定义,不再赘述。终端根据获取的上行控制信道的时域位置信息和上行数据信道的时域位置信息,确定所述上行控制信道与所述上行数据信道是否在时域上部分或者全部重叠。
可选的,终端从高层参数配置(如RRC配置)中获取上行数据信道的传输周期和偏移值,根据获取到的传输周期和偏移值确定上行数据信道的时域位置。
步骤303:在上行控制信道的时域位置和上行数据信道的时域位置满足第一条件的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。
其中,终端静默上行控制信道可以指:终端不发送或者停止发送上行控制信道。
本申请中,对于不同的上行控制信息,其对应的第一条件是不同的,具体如下:
情况一:上行控制信息为ACK/NACK
第一条件包括:第一符号与下行数据信道的结束符号的距离大于或者等于第一门限,上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限,差值等于上行数据信道的起始符号的编号减去上行控制信道的起始符号的编号。
其中,下行数据信道可以与ACK/NACK对应,该下行数据信道可以为ACK/NACK对应的多个下行数据信道中的最后一个下行数据信道。
第一符号可以为上行控制信道的起始符号和上行数据信道的起始符号中时间最前的符号,如:若上行控制信道的起始符号为时隙中第1个符号,上行数据信道的起始符号为时隙中第3个符号,则第一符号为上行控制信道的起始符号;若上行控制信道的起始符号为时隙中第3个符号,上行数据信道的起始符号为时隙中第1个符号,则第一符号为上行数据信道的起始符号。需要说明的是,当上行控制信道和上行数据信 道的起始符号为同一符号时,第一符号可以为上行控制信道的起始符号,也可以为上行数据信道的起始符号,不予限制。
其中,第一门限可以由第一时长和第一偏移值确定,如:第一门限=第一时长+第一偏移值。第一时长可以是终端接收下行数据信道的结束符号到发送下行数据信道对应的ACK/NACK的起始符号的最短处理时长,第一时长可以适用于所有终端,第一时长、第一偏移值可以由协议规定或预定义或由接入网设备通过高层信令为终端配置的。第一符号与下行数据信道的结束符号的距离大于或者等于第一门限可以表示:在发送第一符号之前,终端已生成ACK/NACK。反之,则可以表示终端发送第一符号之前,终端未生成ACK/NACK。如:假设第一符号为PUCCH的起始符号,若第一符号大于或者等于第一门限,则表示发送PUCCH之前,终端已生成ACK/NACK。假设第一符号为PUSCH的起始符号,若第一符号大于或者等于第一门限,则表示发送PUSCH之前,终端已生成ACK/NACK。
其中,第二门限可以由第一取值确定,如:第二门限=第一取值+偏移值,该偏移值可以预先定义或者通过高层参数配置,不予限制。第一取值小于或者等同于第二时长的一半,第二时长为协议规定的、终端接收UL Grant到发送上行授权对应的上行数据信道的最短处理时长。在一实施方式中,该最短时长可以是由协议规定的。在本申请中,除协议规定之外,第二门限可以由终端自动获取,或者由接入网设备通过高层信令配置给终端,或者由终端获取并上报给接入网设备等,不予限制。上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限可以表示:在终端发送上行控制信道时,可以根据之前是否有数据到达或来自媒体接入控制(Media Access Control,MAC)层的MAC协议数据单元(Protocol Data Unit,PDU)指示,确定上行数据信道是否会被激活。
需要说明的是,情况一中,在第一符号之前,终端还接收到MAC PDU指示,其中,MAC PDU用于指示有数据到达,这样,能够保证在情况一所述的第一条件实现的情况下,上行数据信道一定会被激活,可以发送上行控制信息和上行数据。反之,若在第一符号之前,终端未接收MAC PDU指示,则表示没有数据到达,下行数据信道未被激活,此时,即使情况一所述的第一条件实现,终端也不会将上行控制信息携带在上行数据信道上,而是跳过下行数据信道,直接在上行控制信道上传输ACK/NACK。
下面结合附图4a~附图4c,以上行数据信道为GF PUSCH,上行控制信道为PUCCH,PUCCH承载ACK/NACK,ACK/NACK对应的下行数据信道为PDSCH,PDSCH由DCI调度,第一门限为T1,第二门限为T2(其中,T2大于或者等于0)为例,对情况一进行说明:
如图4a所示,终端在发送GF PUSCH之前收到MAC PDU指示,获知逻辑信道有数据到达,此时,终端可以根据GF PUSCH的起始符号与PUCCH的起始符号,确定GF PUSCH的起始符号早于PUCCH的起始符号,且GF PUSCH的起始符号的编号减去PUCCH的起始符号的编号小于T2,并且从图4a中可以看出,GF PUSCH的起始符号与PDSCH的结束符号的距离大于T1,即情况一所述的第一条件满足,则终端可以静默PUCCH,在GF PUSCH上发送ACK/NACK和数据。
如图4b所示,终端在时间点T2之前(即发送PUCCH之前)收到MAC PDU指示,获知逻辑信道有数据到达,此时,终端可以根据GF PUSCH的起始符号与PUCCH的起始符号,确定PUCCH的起始符号早于GF PUSCH的起始符号,且GF PUSCH的起始符号的编号减去PUCCH的起始符号的编号小于T2,并且从图4b中可以看出,PUCCH的起始符号与PDSCH的结束符号的距离大于T1,即情况一所述的第一条件满足,则终端可以静默PUCCH,在GF PUSCH上发送ACK/NACK和数据。
如图4c所示,PUCCH的起始符号早于GF PUSCH 1的起始符号,PUCCH的起始符号与PDSCH的结束符号的距离大于T1,即:第一条件中第一符号与PDSCH的结束符号的距离大于或者等于T1满足。虽然,图4c中,PUCCH的起始符号早于GF PUSCH 1的起始符号,且GF PUSCH 1的起始符号与PUCCH的起始符号的距离小于T2,但终端在发送PUCCH之前没有收到MAC PDU指示,所以,终端知道GF PUSCH 1不会被激活,则终端直接发送ACK/NACK,跳过GF PUSCH 1。后续,如果终端在发送PUCCH时有GF PUSCH对应的逻辑信道数据到达,则终端会对数据进行MAC组包和PHY层处理,并将处理完后的数据在最近的GF PUSCH上传输,如:在GF PUSCH2上传输。
情况二:上行控制信息为A-CSI
第一条件包括:上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限,和/或,第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,和/或,第一符号与下行参考信号的结束符号的距离大于或者等于第四门限。
其中,第二门限、第一符号、差值的相关描述可参照情况一中所述,不再赘述。
其中,第二下行控制信道可以为用于指示终端发送A-CSI的PDCCH,第三门限可以由终端接收第二下行控制信道到终端发送A-CSI的最短处理时长Z1确定,第三门限适用于所有终端。如:第三门限=Z1+第二偏移值,Z1和偏移值可以由协议规定或者预先定义或者通过高层参数配置,不予限制。第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限可以表示:第一符号发送时,终端已完成A-CSI的测量和发送准备工作。
接入网设备发送的下行参考信号的配置信息可以由第二下行控制信道指示,终端根据第二下行控制信道指示的下行参考信号的配置信息接收接入网设备发送的下行参考信号。进一步的,第二下行控制信道还可指示用于UE反馈对应的A-CSI的PUCCH的资源配置信息。下行参考信号与A-CSI对应,如:终端根据下行参考信号进行信道测量和/或干扰测量,以便终端根据信道测量和/或干扰测量后结果生成A-CSI;下行参考信号可以包括用于信道测量的非周期CSI-RS、用于干扰测量的非周期CSI-IM或者非周期NZP CSI-RS;第四门限可以由终端接收到下行参考信号到终端发送所述A-CSI的最短时长Z2确定,第四门限适用于所有终端。如:第四门限=Z2+第二偏移值,Z2和第二偏移值可以由协议规定或者预先定义或者通过高层参数配置,不予限制。第一符号与下行参考信号的结束符号的距离大于或者等于第四门限可以表示:第一符号发送时,终端已完成A-CSI的测量。
由于,下行参考信号由第二下行控制信道调度,所以,终端接收到下行参考信号的时间晚于终端接收到第二下行控制信道的时间,第四门限小于第三门限。需要说明 的是,在本申请中,第三门限、第四门限的取值还与A-CSI上报(report)数量有关,A-CSI report数量越多,第三门限、第四门限的时长越长。
下面结合附图5a~附图5c,以上行数据信道为GF PUSCH,上行控制信道为PUCCH,PUCCH承载A-CSI,触发A-CSI的第二下行控制信道为PDCCH,用于测量A-CSI的下行参考信号为A-RS,第二门限为T2(其中,T2大于或者等于0),第三门限为T3,第四门限为T4为例,对情况二进行说明:
如图5a所示,终端在发送GF PUSCH之前收到MAC PDU指示,获知逻辑信道有数据到达,此时,终端根据GF PUSCH的起始符号与PUCCH的起始符号,确定GF PUSCH的起始符号早于PUCCH的起始符号,GF PUSCH的起始符号的编号减去PUCCH的起始符号的编号一定小于T2,并且从图5a中可以看出,GF PUSCH的起始符号与PDCCH的结束符号的距离大于T3,GF PUSCH的起始符号与下行参考信号A-RS的结束符号的距离大于T4,即情况二所述的第一条件满足,则终端可以静默PUCCH,在GF PUSCH上发送A-CSI和数据。
如图5b所示,终端在时间点T2之前(即发送PUCCH之前)收到MAC PDU指示,获知逻辑信道有数据到达,此时,终端根据GF PUSCH的起始符号与PUCCH的起始符号,确定PUCCH的起始符号早于GF PUSCH的起始符号,且GF PUSCH的起始符号的编号减去PUCCH的起始符号的编号小于T2,并且从图5b中可以看出,PUCCH的起始符号与PDCCH的结束符号的距离大于T3,同时,PUCCH的起始符号与下行参考信号的结束符号的距离大于T4,即情况二所述的第一条件满足,则终端可以静默PUCCH,在PUCCH上发送A-CSI和数据。
如图5c所示,PUCCH的起始符号早于GF PUSCH 1的起始符号,PUCCH的起始符号与PDCCH的结束符号的距离大于T3,满足第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,同时,PUCCH的起始符号与下行参考信号的结束符号的距离大于T4,满足第一符号与的结束符号与下行参考信号的结束符号的距离大于或者等于第四门限。虽然,图5c中,PUCCH的起始符号早于GF PUSCH 1的起始符号,且GF PUSCH 1的起始符号与PUCCH的起始符号的距离小于T2,但终端在发送PUCCH之前没有收到MAC PDU指示,所以,终端知道GF PUSCH 1不会被激活,则终端直接发送A-CSI,跳过GF PUSCH 1。后续,如果终端在发送PUCCH时有GF PUSCH对应的逻辑信道数据到达,则终端会对数据进行MAC组包和PHY层处理,并将处理完后的数据在最近的GF PUSCH上传输,如:在GF PUSCH2上传输。
情况三:上行控制信息为P-CSI/SP-CSI
第一条件包括:上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限,差值等于上行数据信道的起始符号的编号减去上行控制信道的起始符号的编号。
其中,第二门限、差值的相关描述可以参照上述,不再赘述。由于P-CSI/SP-CSI为网络预先配置给终端的,当上行控制信道与上行数据信道的起始符号间的差值小于或者等于第二门限时,表示上行数据信道会被激活,终端可以在上行数据信道上发送P-CSI/SP-CSI。
基于图3所示方法,终端可以在上行控制信道的时域位置和配置授权的上行数据 信道的时域位置满足一定条件的情况下,静默上行控制信道,将上行控制信息和数据一起携带在上行数据信道上发送,实现UCI piggyback on PUSCH,即:对于配置授权的上行数据信道,引入UCI piggyback on PUSCH的timeline,在满足timeline的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息和数据,如此,不仅避免终端中途停止发送上行控制信道带来的干扰问题,而且保证高优先级数据的时延要求。
可选的,在图3所示方法中,当上行控制信息为ACK/NACK时,在上行数据信道上发送ACK/NACK,包括:终端获取包括ACK/NACK对应的下行分配索引(Downlink Assignment Information,DAI)信息的第一信息,根据DAI信息确定ACK/NACK码本,在上行数据信道上发送ACK/NACK码本。
其中,终端可以从高层参数配置(如RRC配置)中获取第一信息;或者,从第一下行控制信道中获取第一信息,第一下行控制信息的结束符号早于上行数据信道的起始符号,上行数据信道的起始符号与第一下行控制信道的起始符号的距离小于或者等于第一时长,或者,上行数据信道的起始符号与第一下行控制信道的结束符号间的距离小于或者等于第一时长,即:第一下行控制信道的发送时刻不早于最后一个ACK/NACK对应的下行数据信道的发送时刻。其中,第一时长的相关描述可参照上述描述,不再赘述。如此,可以在发送ACK/NACK对应的下行数据信道后使用单独的PDCCH指示DAI信息。
其中,DAI信息可以包括反馈的ACK/NACK的总个数,(如:1、2、……N等),通常,可以用DAI_UL_total表示DAI信息。一种可能的设计中,终端根据下行控制信息中的DAI_DL_counter和/或DAI_DL_total确定ACK/NACK码本,如:将终端检测到的最后1个下行控制信道中DAI_DL_counter和/或DAI_DL_total所指示的数量生成对应的ACK/NACK码本。
又一种可能的设计中,通过高层参数配置DAI_UL_total,如:用2bit的数值“00”、”01’、’10’、’11’分别表示DAI_UL_total的数值取值为4n+1、4n+2、4n+3、4n+4,其中n为大于或者等于0的整数。当终端根据最后1个下行控制信道中的DAI_DL_counter生成对应的ACK/NACK码本时,使用该配置的DAI_UL_total替代下行控制信道对应的DAI_DL_counter。这样,如果最后的下行控制信道中的DAI_DL_counter不等于配置的DAI_UL_total,则终端需要补充NACK。如:若DAI_DL_counter<DAI_UL_total,补充(DAI_UL_total-DAI_DL_counter)个NACK;若DAI_DL_counter>DAI_UL_total,补充(DAI_UL_total+4-DAI_DL_counter)个NACK。需要说明的是,在该可能的设计中,当最后1个DAI_DL_counter=DAI_UL_total+1时,为了避免下行控制信道漏检带来的错误,可以再补发一个下行数据信道,如:当最后1次DAI_DL_counter=00时,再补发一个空的PDSCH,对应的DAI_DL_counter=01。
又一种可能的设计中,通过高层参数配置的DAI_UL_total具有更多比特,DAI_UL_total直接表示DAI_UL_total的实际取值,如:12、13、21,…等,这样,终端根据DAI_DL_counter和/或DAI_DL_total确定ACK/NACK码本时,统计确定的ACK/NACK的总数目,如果小于DAI_UL_total,补充对应的NACK。
需要说明的是,通过高层参数配置DAI_UL_total的实现方式中,如果终端支持多 载波,部分载波支持TB-based反馈、部分载波支持CBG-based反馈,则高层参数需要配置2个DAI_UL_total信息,分别指示TB-based对应的ACK/NACK码本和CBG-based对应的ACK/NACK码本。另外,补充对应的NACK时,若是TB-based反馈,1个PDSCH包含2个TB或者说CW,且不支持空域ACK/NACK捆绑,则1个PDSCH对应2个ACK/NACK,需要补充的NACK数目需要加倍;同理,如果是CBG-based反馈,1个PDSCH最多包含N个CBG(N由高层参数配置),一个CBG对应1个ACK/NACK,则需要补充的NACK数目需要至N倍。
再一种可能的设计中,通过第一下行控制信道指示在下行数据信道上piggyback的ACK/ACK码本对应的DAI_UL_total,根据第一下行控制信道指示的DAI_UL_total确定ACK/NACK码本。在该可能的设计中,该第一下行控制信道可以用于指示一个或者多个终端的GF PUSCH所在时隙内反馈的ACK/NACK对应的DAI_UL_total_1,也可以用于指示一个或多个终端需要在GF PUSCH上承载的ACK/NACK对应的DAI_UL_total_2。需要注意的是,若一个时隙可以反馈2个HARQ-ACK码本,且这两个码本分别使用不同的PUCCH来承载,则上述DAI_UL_total_1可以不等于DAI_UL_total_2。此外,第一下行控制信道中可以包含所指示的DAI_UL_total_1所对应的时隙编号、或者所指示的DAI_UL_total_2所对应的时隙编号与时隙内GF PUSCH编号。
可选的,终端在上行数据信道上发送ACK/NACK码本包括:终端采用打孔的方式在上行数据信道上发送ACK/NACK码本;或者,终端在上行数据信道的预留时频资源上发送ACK/NACK码本。
其中,打孔可以指:在上行数据信道的时频资源上承载数据的情况下,将ACK/NACK码本映射到用于承载数据的部分资源上,在这些资源上的数据移除原本承载的数据,发送映射的ACK/NACK信息。预留时频资源可以指:上行数据信道上能够用于传输ACK/NACK的一些预设符号和位置。其中,这些预留时频资源的部分或者全部上映射ACK/NACK码本,预留时频资源中没有映射ACK/NACK码本的资源也不会承载数据。网络可以预先配置预留时频资源。需要说明的是,当预留时频资源不足以传输ACK/NACK时,终端可以采用减少ACK/NACK码本包括的ACK/NACK数目,或者截断ACK/NACK码本,或者对ACK/NACK码本压缩的方式来传输ACK/NACK码本。
进一步可选的,在图3所示方法中,为了保证信道发送的优先级需求,在上行控制信道和上行数据信道的时域位置不满足第一条件的情况下,终端按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道。如:在上行控制信息为ACK/NACK,上行控制信道的起始符号早于上行数据信道的起始符号,上行控制信道的起始符号与下行数据信道的结束符号的距离大于或者等于第一门限,上行控制信道的起始符号与上行数据信道的起始符号差值不小于第二门限的情况下,若终端在发送ACK/NACK之前就收到MAC PDU指示,知道该上行数据信道会被激活,则终端可以按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道,也可以静默上行控制信道,在上行数据信道到来时,在上行数据信道上发送ACK/NACK与数据。或者,
在上行控制信息为ACK/NACK,上行控制信道的起始符号早于上行数据信道的起始符号,上行控制信道的起始符号与下行数据信道的结束符号的距离小于第一门限,或者上行控制信道的起始符号与上行数据信道的起始符号差值大于第二门限的情况下,若终端在发送ACK/NACK之前未收到MAC PDU指示,不知道该上行数据信道是否会被激活,则终端在上行控制信道上发送ACK/NACK,如果发送过程中上行数据信道被激活,终端在重叠符号上按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道。或者,
在上行控制信息为ACK/NACK,上行数据信道的起始符号早于上行控制信道的起始符号,上行数据信道的起始符号与下行数据信道的结束符号的距离小于第一门限的情况下,终端发送上行数据信道,如果发送过程中确定ACK/NACK与上行数据信道重叠,则终端在重叠符号上按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道。或者,
在上行控制信息为A-CSI,上行控制信道的起始符号早于上行数据信道的起始符号,上行控制信道的起始符号与下行控制信道的结束符号的距离大于或者等于第三门限,或者与下行参考信号的结束符号的距离大于或者等于第四门限,上行控制信道的起始符号与上行数据信道的起始符号差值不小于第二门限的情况下,若终端在发送A-CSI之前就收到MAC PDU指示,知道该上行数据信道会被激活,则终端可以按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道,也可以静默上行控制信道,在上行数据信道到来时,在上行数据信道上发送A-CSI与数据。或者,
在上行控制信息为A-CSI,上行控制信道的起始符号早于上行数据信道的起始符号,上行控制信道的起始符号与下行控制信道的结束符号的距离小于第三门限(或者与下行参考信号的结束符号的距离小于第四门限),或者,上行控制信道的起始符号与上行数据信道的起始符号差值大于第二门限的情况下,若终端在发送A-CSI之前未收到MAC PDU指示,不知道该上行数据信道是否会被激活,则终端在上行控制信道上发送A-CSI,如果发送过程中上行数据信道被激活,终端在重叠符号上按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道。
其中,在本申请各实施例中,优先级信息可以为:在上行控制信道采用格式一的情况下,上行控制信道的优先级高于上行数据信道;在上行控制信道采用除格式一之外的其他格式的情况下,上行控制信道的优先级低于上行数据信道;或者,
第一类型的上行控制信道的优先级高于第二类型的上行数据信道;第一类型的上行数据信道的优先级高于第一类型的上行控制信道;第一类型的上行数据信道的优先级高于第二类型的上行控制信道;第二类型的上行数据信道的优先级高于第二类型的上行控制信道。
具体的,可以根据上行控制信道对应的下行数据信道的MCS表格配置信息确定上行控制信道为第一类型的上行控制信道或者第二类型的上行控制信道。如:若上行控制信道对应的下行数据信道对应正常的256或64-QAM(Quadrature Amplitude Modulation,正交幅度调制)表格,则该上行控制信道为第二类型的上行控制信道;若上行控制信道对应的下行数据信道对应新的64-QAM表格,则该上行控制信道为第一类型的上行数据信道,所述新的64-QAM表格包含的调制编码方案(Modulation and  Coding Scheme,MCS)对应的最低频谱效率小于所述正常的256或64-QAM表格包含的MCS对应的最低频谱效率。或者,可以根据上行控制信道对应的下行控制信息的扰码无线网络临时标识(Radio Network Tempory Identity,RNTI)的不同确定上行控制信道为第一类型的上行控制信道或者第二类型的上行控制信道。如:若上行控制信道对应正常的RNTI(C-RNTI、TC-RNTI、P-RNTI、SI-RNTI中的一种),则该上行控制信道为第二类型的上行控制信道;若上行控制信道对应的RNTI用于识别调度数据传输使用的MCS表格为新的64-QAM表格,则该上行控制信道为第一类型的上行控制信道。
具体的,可以根据上行数据信道对应的MCS表格配置信息确定上行数据信道为第一类型的上行数据信道或者第二类型的上行数据信道。如:若上行数据信道对应正常的256或64-QAM表格,则该上行数据信道为第二类型的上行数据信道;若上行数据信道对应新的64-QAM表格,则该上行数据信道为第一类型的上行数据信道,新的64-QAM表格包含的MCS对应的最低频谱效率小于正常的256或64-QAM表格包含的MCS对应的最低频谱效率。或者,可以默认配置授权的上行数据信道为第一类型的上行数据信道。
上面主要针对将上行控制信息承载在配置授权的上行数据信道传输的方法进行了描述的,下面结合图6,对将A-CSI承载在动态调度的上行数据信道发送的方法进行描述说明:
图6为本申请实施例提供的一种发送上行控制信息的方法流程图,如图3所示,该方法可以包括步骤601-步骤603:
步骤601:终端获取上行控制信道的时域位置信息。
其中,该上行控制信道由下行控制信道调度,主要用于承载A-CSI。
其中,上行控制信道的时域位置信息的相关描述以及获取方式可参照步骤301中所述,不再赘述。
步骤602:获取上行数据信道的时域位置信息。
其中,步骤602所述的上行数据信道是动态调度的数据信道,其时域位置信息由调度该数据信道的下行控制信息携带,例如,所述下行控制信息中包含PUSCH-to-PDCCH-Timing指示信息,用于指示所述上行数据信道所在的时隙,且所述下行控制信息中包含Time Domain Resource Allocation信息,用于指示所述上行数据信道占据的时域符号资源,包括起始符号和持续长度。
步骤603:在上行控制信道的时域位置和上行数据信道的时域位置满足第二条件的情况下,终端静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。
其中,第二条件可以包括:第一符号与第一下行控制信道的结束符号的距离大于或者等于第一门限,或者,第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,或者,第一符号与下行参考信号的结束符号的距离大于或者等于第四门限。第一门限、第三门限、第四门限的相关描述可参照图3中所述,不再赘述。
如此,可以保证终端在发送上行数据信道时,已经完成信道测量和测量报告的生成,可以使终端直接静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上 发送。
进一步可选的,在图6所示方法中,为了保证信道发送的优先级需求,在上行控制信道和上行数据信道的时域位置不满足第二条件的情况下,终端按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道。如:上行控制信道的起始符号早于上行数据信道的起始符号,上行控制信道的起始符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,或者与下行参考信号的结束符号的距离大于或者等于第四门限的情况下,若终端在发送A-CSI之前就收到MAC PDU指示,知道该上行数据信道会被激活,则终端可以按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道,也可以静默上行控制信道,在上行数据信道到来时,在上行数据信道上发送A-CSI与数据。或者,
在上行控制信道的起始符号早于上行数据信道的起始符号,上行控制信道的起始符号与第二下行控制信道的结束符号的距离小于第三门限,或者,与下行参考信号的结束符号的距离小于第四门限的情况下,若终端在发送A-CSI之前未收到MAC PDU指示,不知道该上行数据信道是否会被激活,则终端在上行控制信道上发送A-CSI,如果发送过程中上行数据信道被激活,终端在重叠符号上按照优先级信息发送上行控制信道和上行数据信道中优先级最高的信道。
其中,优先级信息可以参照上述图3对应的实施例中所述,不再赘述。
基于图6所示方法,终端可以在上行控制信道的时域位置和第一下行控制信道调度的上行数据信道的时域位置满足一定条件的情况下,静默上行控制信道,将A-CSI和数据一起携带在上行数据信道上发送,实现A-CSI piggyback on PUSCH,即:对于动态调度的上行数据信道,引入UCI piggyback on PUSCH的timeline,在满足timeline的情况下,静默上行控制信道,在上行数据信道上发送A-CSI和数据,如此,不仅避免终端中途停止发送上行控制信道带来的干扰问题,以及接收端盲解复杂度较高的问题,而且保证高优先级数据的时延要求。
可以理解的是,终端为了实现上述功能,其包括了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的算法步骤,本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对终端进行功能模块的划分,例如,可以对应各个功能划分各个功能模块,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。需要说明的是,本申请实施例中对模块的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。
图7示出了的一种通信装置的结构图,该通信装置可以为终端,或者终端上的芯片,或者片上系统,该通信装置可以用于执行上述实施例中涉及的终端的功能。作为一种可实现方式,图7所示通信装置包括:获取单元70,发送单元71;
一种可能的设计中,上行数据信道为配置授权的上行信道,获取单元70,用于获 取上行控制信道的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息,其中,上行数据信道与上行控制信道在时域上部分或者全部重叠;例如,获取单元70支持通信装置执行步骤301、步骤302。
发送单元71,用于在上行控制信道的时域位置和上行数据信道的时域位置满足第一条件的情况下,静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。例如,发送单元71支持通信装置执行步骤303。
又一种可能的设计中,上行数据信道由第一下行控制信道调度,获取单元70,用于获取用于承载非周期信道状态信息A-CSI的上行控制信道的的时隙编号、上行控制信道的起始符号以及上行控制信道的时域长度,以及获取上行数据信道的时隙编号、上行数据信道的起始符号和上行数据信道的时域长度时域位置信息,其中,上行数据信道与上行控制信道在时域上部分或者全部重叠;例如,获取单元70支持通信装置执行步骤601、步骤602。
发送单元71,用于在上行控制信道的时域位置和上行数据信道的时域位置满足第二条件的情况下,静默上行控制信道,在上行数据信道上发送上行控制信息以及上行数据。例如,发送单元71支持通信装置执行步骤603。
需要说明的是,上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述,在此不再赘述。本申请实施例提供的通信装置,用于执行上述发送上行控制信息的方法中通信装置的功能,因此可以达到与上述发送上行控制信息的方法相同的效果。
作为又一种可实现方式,图7所示通信装置可以包括:处理模块和通信模块。处理模块用于对通信装置的动作进行控制管理,例如,处理模块用于支持该通信装置支持步骤301、步骤302、步骤601、步骤602以及执行本文所描述的技术的其它过程。通信模块用于支持通信装置执行步骤303、步骤603以及与其他网络实体的通信,例如与图1示出的功能模块或网络实体之间的通信。进一步的,该通信装置还可以包括存储模块,用于存储通信装置的程序代码和数据。
其中,处理模块可以是处理器或控制器。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。通信模块可以是收发电路或通信接口等。存储模块可以是存储器。当处理模块为处理器,通信模块为通信接口,存储模块为存储器时,图7所示通信装置可以为图2所示通信装置。
图8为本申请实施例提供的一种发送上行控制信息的系统的结构图,如图8所示,该发送上行控制信息的系统可以包括:终端80、接入网设备。
其中,终端80可以与图7所示的通信装置具有相同功能,不再赘述。
基于图8所示系统,终端可以在上行控制信道的时域位置和上行数据信道的时域位置满足一定条件的情况下,静默上行控制信道,将上行控制信息和数据一起携带在上行数据信道上发送,实现UCI piggyback on PUSCH,如此,不仅避免终端中途停止发送上行控制信道带来的干扰问题,以及接收端盲解复杂度较高的问题,而且保证高优先级数据的时延要求。
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
在本申请所提供的几个实施例中,应该理解到,所揭露的装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个装置,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是一个物理单元或多个物理单元,即可以位于一个地方,或者也可以分布到多个不同地方。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个可读取存储介质中。基于这样的理解,本申请实施例的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该软件产品存储在一个存储介质中,包括若干指令用以使得一个设备(可以是单片机,芯片等)或处理器(processor)执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。

Claims (20)

  1. 一种发送上行控制信息的方法,其特征在于,所述方法包括:
    终端获取上行控制信道的时域位置信息;其中,所述上行控制信道用于承载上行控制信息,所述上行控制信道的时域位置信息包括所述上行控制信道的时隙编号、所述上行控制信道的起始符号以及所述上行控制信道的时域长度;
    所述终端获取上行数据信道的时域位置信息;其中,所述上行数据信道为配置授权的上行信道,所述上行数据信道的时域位置信息包括所述上行数据信道的时隙编号、所述上行数据信道的起始符号和所述上行数据信道的时域长度,所述上行数据信道与所述上行控制信道在时域上部分或者全部重叠;
    在所述上行控制信道的时域位置和所述上行数据信道的时域位置满足第一条件的情况下,所述终端静默所述上行控制信道,在所述上行数据信道上发送所述上行控制信息以及所述上行数据。
  2. 根据权利要求1所述的发送上行控制信息的方法,其特征在于,所述上行控制信息包括确认ACK/否定确认NACK,所述第一条件包括:
    第一符号与下行数据信道的结束符号的距离大于或者等于第一门限,所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限,所述差值等于所述上行数据信道的起始符号的编号减去所述上行控制信道的起始符号的编号;
    其中,所述第一符号为所述上行控制信道的起始符号和所述上行数据信道的起始符号中时间最前的符号,所述下行数据信道与所述ACK/NACK对应。
  3. 根据权利要求2所述的发送上行控制信息的方法,其特征在于,在所述上行数据信道上发送所述上行控制信息,包括:
    所述终端获取第一信息;其中,第一信息包括所述ACK/NACK对应的下行分配索引DAI信息;
    所述终端根据所述DAI信息确定ACK/NACK码本,在所述上行数据信道上发送所述ACK/NACK码本。
  4. 根据权利要求3所述的发送上行控制信息的方法,其特征在于,所述终端获取第一信息,包括:
    所述终端从高层参数配置中获取所述第一信息。
  5. 根据权利要求3所述的发送上行控制信息的方法,其特征在于,所述终端获取第一信息,包括:
    所述终端从第一下行控制信道中获取所述第一信息;
    其中,所述第一下行控制信息的结束符号早于所述上行数据信道的起始符号,所述上行数据信道的起始符号与所述第一下行控制信道的起始符号的距离小于或者等于第一时长。
  6. 根据权利要求3至5任一项所述的发送上行控制信息的方法,其特征在于,所述终端在所述上行数据信道上发送所述ACK/NACK码本,包括:
    所述终端采用打孔的方式在所述上行数据信道上发送所述ACK/NACK码本;或者,
    所述终端在所述上行数据信道的预留时频资源上发送所述ACK/NACK码本。
  7. 根据权利要求1所述的发送上行控制信息的方法,其特征在于,所述上行控制信息包括非周期性信道状态信息A-CSI,所述第一条件包括:
    所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限;和/或,
    第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,所述第二下行控制信道用于指示所述终端发送所述A-CSI;和/或,
    所述第一符号与下行参考信号的结束符号的距离大于或者等于第四门限,所述下行参考信号与所述A-CSI对应;
    其中,所述差值等于所述上行数据信道的起始符号的编号减去所述上行控制信道的起始符号的编号,所述第一符号为所述上行控制信道的起始符号和所述上行数据信道的起始符号中时间最前的符号,所述第三门限大于或等于所述第四门限。
  8. 根据权利要求1所述的发送上行控制信息的方法,其特征在于,所述上行控制信息包括周期性信道状态信息P-CSI或者半持续性信道状态信息SP-CSI,所述第一条件包括:
    所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限,所述差值等于所述上行数据信道的起始符号的编号减去所述上行控制信道的起始符号的编号。
  9. 根据权利要求2或7或8所述的发送上行控制信息的方法,其特征在于,
    所述第二门限由第一取值确定,所述第一取值小于第二时长的一半,所述第二时长为终端接收上行授权UL Grant到发送所述上行授权对应的上行数据信道的最短处理时长。
  10. 一种通信装置,其特征在于,所述通信装置包括:
    获取单元,用于获取上行控制信道的时域位置信息;其中,所述上行控制信道用于承载上行控制信息,所述上行控制信道的时域位置信息包括所述上行控制信道的时隙编号、所述上行控制信道的起始符号以及所述上行控制信道的时域长度;
    以及,获取上行数据信道的时域位置信息;其中,所述上行数据信道为配置授权的上行信道,所述上行数据信道的时域位置信息包括所述上行数据信道的时隙编号、所述上行数据信道的起始符号和所述上行数据信道的时域长度,所述上行数据信道与所述上行控制信道在时域上部分或者全部重叠;
    发送单元,用于在所述上行控制信道的时域位置和所述上行数据信道的时域位置满足第一条件的情况下,静默所述上行控制信道,在所述上行数据信道上发送所述上行控制信息以及所述上行数据。
  11. 根据权利要求10所述的通信装置,其特征在于,所述上行控制信息包括确认ACK/否定确认NACK,所述第一条件包括:
    第一符号与下行数据信道的结束符号的距离大于或者等于第一门限,所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限,所述差值等于所述上行数据信道的起始符号的编号减去所述上行控制信道的起始符号的编号;
    其中,所述第一符号为所述上行控制信道的起始符号和所述上行数据信道的起始符号中时间最前的符号,所述下行数据信道与所述ACK/NACK对应。
  12. 根据权利要求11所述的通信装置,其特征在于,
    所述获取单元,还用于获取第一信息;其中,第一信息包括所述ACK/NACK对应的下行分配索引DAI信息;
    所述通信装置,还包括:
    确定单元,用于根据所述DAI信息确定ACK/NACK码本;
    所述发送单元,具体用于在所述上行数据信道上发送所述ACK/NACK码本。
  13. 根据权利要求12所述的通信装置,其特征在于,所述获取单元,具体用于:
    从高层参数配置中获取所述第一信息。
  14. 根据权利要求12所述的通信装置,其特征在于,所述获取单元,具体用于:
    从第一下行控制信道中获取所述第一信息;
    其中,所述第一下行控制信息的结束符号早于所述上行数据信道的起始符号,所述上行数据信道的起始符号与所述下行控制信道的起始符号的距离小于或者等于第一时长,所述第一时长为协议规定的、所述通信装置接收所述下行数据信道到所述通信装置发送所述ACK/NACK的最短处理时长,所述第一时长用于确定所述第一门限。
  15. 根据权利要求12至14任一项所述的通信装置,其特征在于,所述发送单元,具体用于:
    采用打孔的方式在所述上行数据信道上发送所述ACK/NACK码本;或者,
    在所述上行数据信道的预留时频资源上发送所述ACK/NACK码本。
  16. 根据权利要求10所述的通信装置,其特征在于,所述上行控制信息包括非周期性信道状态信息A-CSI,所述第一条件包括:
    所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限,第一符号与第二下行控制信道的结束符号的距离大于或者等于第三门限,所述第二下行控制信道用于指示所述通信装置发送所述A-CSI;和/或,
    所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限,第一符号与下行参考信号的结束符号的距离大于或者等于第四门限,所述下行参考信号与所述A-CSI对应;
    其中,所述差值等于所述上行数据信道的起始符号的编号减去所述上行控制信道的起始符号的编号,所述第一符号为所述上行控制信道的起始符号和所述上行数据信道的起始符号中时间最前的符号,所述第三门限大于或等于所述第四门限。
  17. 根据权利要求10所述的通信装置,其特征在于,所述上行控制信息包括周期性信道状态信息P-CSI或者半持续性信道状态信息SP-CSI,所述第一条件包括:
    所述上行控制信道与所述上行数据信道的起始符号间的差值小于或者等于第二门限,所述差值等于所述上行数据信道的起始符号的编号减去所述上行控制信道的起始符号的编号。
  18. 根据权利要求11或16或17所述的通信装置,其特征在于,
    所述第二门限由第一取值确定,所述第一取值小于第二时长的一半,通信装置接收上行授权UL Grant到发送所述上行授权对应的上行数据信道的最短处理时长。
  19. 一种通信装置,其特征在于,所述通信装置包括一个或多个处理器和一个或多个存储器;所述一个或多个存储器与所述一个或多个处理器耦合,所述一个或多个 存储器用于存储计算机程序代码,所述计算机程序代码包括计算机指令;
    当所述一个或多个处理器执行所述计算机指令时,使得所述装置执行如权利要求1-9任一项所述的发送上行控制信息的方法。
  20. 一种计算机存储介质,其特征在于,所述计算机存储介质包括计算机指令,当所述计算机指令在计算机上运行时,使得所述计算机执行如权利要求1-9任一项所述的发送上行控制信息的方法。
PCT/CN2019/094286 2018-08-03 2019-07-01 一种发送上行控制信息的方法、设备及系统 WO2020024754A1 (zh)

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