CN110891311A - Method and communication device for transmitting feedback information - Google Patents

Method and communication device for transmitting feedback information Download PDF

Info

Publication number
CN110891311A
CN110891311A CN201811046330.9A CN201811046330A CN110891311A CN 110891311 A CN110891311 A CN 110891311A CN 201811046330 A CN201811046330 A CN 201811046330A CN 110891311 A CN110891311 A CN 110891311A
Authority
CN
China
Prior art keywords
uplink transmission
information
transmission resource
time window
feedback information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811046330.9A
Other languages
Chinese (zh)
Inventor
杨帆
王俊伟
张莉莉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201811046330.9A priority Critical patent/CN110891311A/en
Priority to PCT/CN2019/104418 priority patent/WO2020048489A1/en
Publication of CN110891311A publication Critical patent/CN110891311A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Landscapes

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

Abstract

The application provides a method and a communication device for transmitting feedback information. The method comprises the following steps: the terminal equipment receives a first downlink message sent by the network equipment; the terminal equipment determines a first uplink transmission resource for transmitting first uplink information, wherein the first uplink transmission resource is one of at least one uplink transmission resource included in a first time window, the first time window includes at least one uplink transmission resource, and each uplink transmission resource is used for transmitting the uplink information; and the terminal equipment sends the joint information of the first feedback information and the first uplink information to the network equipment on the first uplink transmission resource, wherein the first feedback information responds to the first downlink message. The feedback information transmission method can increase the sending opportunity of the feedback information on the unauthorized frequency spectrum, avoid the situation that the terminal equipment does not have resources to send the feedback information to a great extent, avoid the communication problem that the network equipment and the terminal equipment cannot transmit the feedback information, and improve the communication efficiency.

Description

Method and communication device for transmitting feedback information
Technical Field
The present application relates to the field of communications, and in particular, to a method and an apparatus for transmitting feedback information.
Background
In the fifth generation (5G) mobile communication system, hybrid automatic repeat request (HARQ) is an efficient transmission mechanism for downlink data transmission, for example, for Physical Downlink Shared Channel (PDSCH) transmission. On one hand, the reliability of downlink data transmission can be greatly improved through retransmission, and on the other hand, the User Equipment (UE) feeds back Acknowledgement (ACK)/Negative Acknowledgement (NACK) information of HARQ, and only when NACK is fed back, the network equipment needs to retransmit, thereby improving the data transmission efficiency.
In the 5G system, for feedback on whether the PDSCH on the licensed spectrum is correctly received, the time domain position (e.g., time slot) where the ACK/NACK information is fed back is indicated in advance by the network device. In unlicensed spectrum, for example, a 5G network, a Long Term Evolution (LTE) system network, and the like share a frequency band with other networks (e.g., Wireless Local Area Networks (WLANs)). Based on the principle of fair competition, network devices or terminal devices need to monitor when accessing and using an unauthorized frequency band. Only when the frequency band is idle and not occupied by other network equipment or terminal equipment, the network equipment or terminal equipment can use the frequency band. Further, the network device or the terminal device can transmit information and data only after accessing the frequency band.
On the unlicensed spectrum, for the PDSCH issued by the network device, the terminal device needs to feed back ACK/NACK information, and the time domain position (explained by taking the time slot as an example) for feeding back the ACK/NACK information depends not only on the time slot position scheduled in advance by the network device, but also on whether the terminal device can successfully access the frequency band on the time slot scheduled in advance by the network device. If the terminal device cannot access (use) the channel (frequency band), ACK/NACK information cannot be fed back in the pre-scheduled time slot, which may cause the network device to fail to know whether the terminal device correctly receives data, resulting in a communication problem between the network device and the terminal device, and seriously reducing communication efficiency and user experience. Therefore, how to increase the feedback opportunity of the ACK/NACK information on the unlicensed spectrum is a problem to be solved urgently.
Disclosure of Invention
The application provides a method and a communication device for transmitting feedback information. The method and the device can increase the sending opportunity of the feedback information on the unauthorized frequency spectrum, reduce the occurrence of the situation that the terminal equipment does not send the feedback information by resources to a great extent, avoid the communication problem between the network equipment and the terminal equipment because the feedback information can not be transmitted, and improve the communication efficiency and the user experience.
In a first aspect, a method for transmitting feedback information is provided, including: the terminal equipment receives a first downlink message sent by the network equipment; the terminal equipment determines a first uplink transmission resource for transmitting first uplink information, wherein the first uplink transmission resource is one of at least one uplink transmission resource included in a first time window, the first time window includes at least one uplink transmission resource, and each uplink transmission resource in the at least one uplink transmission resource is used for transmitting the uplink information; the terminal device sends the joint information of the first feedback information and the first uplink information to the network device on the first uplink transmission resource, and the first feedback information responds to the first downlink message.
In the method for transmitting feedback information provided in the first aspect, the terminal device may send the first feedback information on a pre-configured time-frequency resource of the first feedback information. The first feedback information may also be sent on a first uplink transmission resource of the one or more uplink transmission resources within the first time window. That is, the joint information of the first feedback information and the first uplink information is sent on the first uplink transmission resource. The feedback opportunity of the first feedback information on the unauthorized frequency spectrum can be increased, the situation that the terminal equipment does not send the feedback information by resources is reduced to a great extent, the communication problem between the network equipment and the terminal equipment due to the fact that the feedback information cannot be transmitted is avoided, and the communication efficiency and the user experience are improved.
In a possible implementation manner of the first aspect, the method further includes: the terminal device receives first configuration information sent by the network device, wherein the first configuration information comprises information of the first time window.
In a possible implementation manner of the first aspect, when the uplink transmission resource is multiple, the first uplink transmission resource is a first uplink transmission resource after the terminal device can use a channel in the first time window, and the uplink transmission resource in the first time window is on the channel; or the first uplink transmission resource is an uplink transmission resource in which uplink information with a lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located within the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information; or, the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window; or the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority in the plurality of uplink information transmitted by the plurality of uplink transmission resources is located in the first time window. In this implementation manner, the reliability of the joint information transmission, that is, the reliability of the first feedback information transmission, may be ensured, and the transmission delay may be reduced. The communication efficiency is improved.
In a possible implementation manner of the first aspect, the method further includes: the terminal equipment receives a second downlink message sent by the network equipment; the terminal equipment determines third feedback information according to the first feedback information and second feedback information, wherein the second feedback information responds to the second downlink message; the terminal device sends the joint information of the first feedback information and the first uplink information to the network device on the first uplink transmission resource, including: and the terminal equipment sends the joint information of the third feedback information and the first uplink information to the network equipment on the first uplink transmission resource.
In a possible implementation manner of the first aspect, the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information; or the third feedback information is feedback information corresponding to a time window with fewer uplink transmission resources included in the first time window and the second time window, the second time window corresponds to the second feedback information, the second time window includes at least one uplink transmission resource, and each uplink transmission resource is used for transmitting uplink information; or the third feedback information is feedback information corresponding to a time window which is included in the first time window and the second time window and has less uplink transmission resources left after the terminal device can use the channel; or the third feedback information is feedback information corresponding to a time window which is included in the first time window and the second time window respectively and has less time units left after the terminal device accesses the channel; or the third feedback information is feedback information with higher priority in the first feedback information and the second feedback information.
In a possible implementation manner of the first aspect, the uplink transmission resources included in the first time window and/or the second time window are: at least one of an uplink transmission resource for transmitting Channel State Information (CSI), an uplink transmission resource for transmitting a Physical Uplink Shared Channel (PUSCH), and an uplink transmission resource for transmitting hybrid automatic repeat Acknowledgement (ACK) or Negative Acknowledgement (NACK) information.
In a possible implementation manner of the first aspect, the method further includes: the terminal device sends indication information to the network device, where the indication information is used to indicate the terminal device to send the joint information on the first uplink transmission resource. In this implementation manner, the network device can accurately determine the uplink transmission resource for transmitting the joint information. The resource consumption of the network equipment is reduced, and the communication efficiency is improved.
As a possible implementation manner, a cyclic shift value of the DMRS of the first uplink information is K, where the K is used to instruct the terminal device to transmit the joint information in the first uplink transmission resource.
As a possible implementation manner, the first uplink information may be scrambled by a first radio network temporary identifier RNTI, where the first RNTI is used to instruct the terminal device to transmit the joint information in the first uplink resource.
In a second aspect, a method for transmitting feedback information is provided, including: the network equipment sends a first downlink message to the terminal equipment; the network device receives, on a first uplink transmission resource, joint information of first feedback information and first uplink information sent by the terminal device, where the first feedback information is in response to the first downlink message, the first uplink transmission resource is located in a first time window, the first uplink transmission resource is used to transmit the first uplink information, the first time window includes at least one uplink transmission resource, and each uplink transmission resource is used to transmit uplink information.
In the method for transmitting feedback information provided in the second aspect, the network device only needs to detect the first feedback information in the uplink transmission resource in the time range of the first time window, and does not need to detect the first feedback information in other uplink transmission resources, so that the range in which the network device needs to perform blind detection can be reduced, and resource consumption caused by configuring more resources for more potential sending opportunities by the network device can be reduced. The network equipment does not need to wait for the first feedback information for a long time, so that the time for the network equipment to wait for the first feedback information is shortened, and the delay of feeding back the first feedback information is reduced. In addition, the network device does not need to additionally configure or schedule uplink transmission resources for the first feedback information, so that the uplink transmission resources can be saved, the network device can more efficiently realize the scheduling of the resources, other uplink information can be more reliably transmitted, and the utilization rate of the resources is improved.
In one possible implementation manner of the second aspect, the method further includes: the network device sends first configuration information to the terminal device, wherein the first configuration information comprises information of the first time window.
In a possible implementation manner of the second aspect, in a case that the uplink transmission resource is multiple, the first uplink transmission resource is a first uplink transmission resource after the terminal device can use a channel within the first time window, and the uplink transmission resource within the first time window is on the channel; or the first uplink transmission resource is an uplink transmission resource in which uplink information with a lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located within the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information; or, the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window; or the first uplink transmission resource is an uplink transmission resource where, in the first time window, the uplink information with the highest or lowest priority among the plurality of uplink information transmitted by the plurality of uplink transmission resources is located.
In one possible implementation manner of the second aspect, the method further includes: the network equipment sends a second downlink message to the terminal equipment; the network device receives, on a first uplink transmission resource, joint information of first feedback information and first uplink information sent by the terminal device, and includes: the network device receives, on the first uplink transmission resource, joint information of third feedback information and the first uplink information sent by the terminal device, where the third feedback information is determined according to the first feedback information and second feedback information, and the second feedback information is in response to the second downlink message.
In a possible implementation manner of the second aspect, the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information; or the third feedback information is feedback information corresponding to a time window with fewer uplink transmission resources included in the first time window and the second time window, the second time window corresponds to the second feedback information, the second time window includes at least one uplink transmission resource, and each uplink transmission resource is used for transmitting uplink information; or the third feedback information is feedback information corresponding to a time window which is included in the first time window and the second time window and has less uplink transmission resources left after the terminal device can use the channel; or the third feedback information is feedback information corresponding to a time window which is included in the first time window and the second time window respectively and has less time units left after the terminal device can use the channel; or the third feedback information is feedback information with higher priority in the first feedback information and the second feedback information.
In a possible implementation manner of the second aspect, the uplink transmission resources included in the first time window and/or the second time window are: at least one of an uplink transmission resource for transmitting Channel State Information (CSI), an uplink transmission resource for transmitting a Physical Uplink Shared Channel (PUSCH), and an uplink transmission resource for transmitting hybrid automatic repeat Acknowledgement (ACK) or Negative Acknowledgement (NACK) information.
In one possible implementation manner of the second aspect, the method further includes: the network device receives indication information sent by the terminal device, where the indication information is used to indicate the terminal device to receive the joint information on the first uplink transmission resource.
As a possible implementation manner, a cyclic shift value of the DMRS of the first uplink information is K, where the K is used to instruct the terminal device to transmit the joint information in the first uplink transmission resource.
As a possible implementation manner, the first uplink information may be scrambled by a first radio network temporary identifier RNTI, where the first RNTI is used to instruct the terminal device to transmit the joint information in the first uplink resource.
In a third aspect, a communication device is provided, which includes means for performing each step in the above first aspect or any possible implementation manner of the first aspect.
In a fourth aspect, there is provided a communication device comprising means for performing the steps of the second aspect above or any possible implementation manner of the second aspect.
In a fifth aspect, there is provided a communication apparatus comprising at least one processor and a memory, the at least one processor being configured to perform the method of the first aspect above or any possible implementation manner of the first aspect.
In a sixth aspect, there is provided a communications apparatus comprising at least one processor and a memory, the at least one processor being configured to perform the method of the second aspect above or any possible implementation manner of the second aspect.
In a seventh aspect, a terminal device is provided, where the terminal device includes the communication apparatus provided in the third aspect, or the terminal includes the communication apparatus provided in the fifth aspect.
In an eighth aspect, a network device is provided, where the network device includes the communication apparatus provided in the fourth aspect, or the network device includes the communication apparatus provided in the sixth aspect.
In a ninth aspect, a computer program product is provided, the computer program product comprising a computer program for performing the method of the first aspect or any possible implementation form of the first aspect, or for performing the method of the second aspect or any possible implementation form of the second aspect, when the computer program is executed by a processor.
A tenth aspect provides a computer readable storage medium having stored thereon a computer program for performing the method of the first aspect or any possible implementation form of the first aspect, or for performing the method of the second aspect or any possible implementation form of the second aspect, when the computer program is executed.
In an eleventh aspect, a chip system is provided, which comprises a processor for performing the functions referred to in the above aspects, such as generating, receiving, sending, or processing data and/or information referred to in the above methods. In one possible design, the system-on-chip further includes a memory for storing necessary program instructions and data. The chip system may be formed by a chip, or may include a chip and other discrete devices. The processor and the memory may be decoupled, disposed on different devices, connected in a wired or wireless manner, or coupled on the same device.
Drawings
Fig. 1 is a schematic architecture diagram of a mobile communication system suitable for use in the embodiments of the present application.
Fig. 2 is a schematic interaction diagram of a method for transmitting feedback information according to an embodiment of the present application.
Fig. 3 is a schematic diagram of an example time window provided in the embodiment of the present application.
Fig. 4 is a schematic diagram of another example of a time window provided in the embodiment of the present application.
Fig. 5 is a schematic diagram of another example of a time window provided in the embodiment of the present application.
Fig. 6 is a schematic interaction diagram of another method for transmitting feedback information according to an embodiment of the present application.
Fig. 7 is a schematic diagram of another example of a time window provided in the embodiment of the present application.
Fig. 8 is a schematic interaction diagram of another method for transmitting feedback information according to an embodiment of the present application.
Fig. 9 is a schematic diagram of another example of a time window provided in the embodiment of the present application.
Fig. 10 is a schematic interaction diagram of another method for transmitting feedback information according to an embodiment of the present application.
Fig. 11 is a schematic block diagram of a communication device provided in an embodiment of the present application.
Fig. 12 is a schematic block diagram of a communication device according to another embodiment of the present application.
Fig. 13 is a schematic block diagram of a communication device provided in an embodiment of the present application.
Fig. 14 is a schematic block diagram of a communication device according to another embodiment of the present application.
Fig. 15 is a schematic diagram of a terminal device provided in an embodiment of the present application.
Fig. 16 is a schematic diagram of a network device according to an embodiment of the present application.
Detailed Description
The technical solution in the present application will be described below with reference to the accompanying drawings.
The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a future fifth generation (5G) or New Radio (NR) system, and the like.
Fig. 1 is a schematic architecture diagram of a mobile communication system suitable for use in the embodiments of the present application. As shown in fig. 1, the mobile communication system 100 may include a core network device 110, a radio access network device 120, and at least one terminal device (e.g., a terminal device 130 and a terminal device 140 shown in fig. 1). The terminal equipment is connected with the wireless access network equipment in a wireless mode, and the wireless access network equipment is connected with the core network equipment in a wireless or wired mode. The core network device and the radio access network device may be separate physical devices, or the function of the core network device and the logical function of the radio access network device may be integrated on the same physical device, or a physical device may be integrated with a part of the function of the core network device and a part of the function of the radio access network device. The terminal equipment may be fixed or mobile. Fig. 1 is a schematic diagram, and other network devices, such as a wireless relay device and a wireless backhaul device, may also be included in the communication system, which are not shown in fig. 1. The embodiments of the present application do not limit the number of core network devices, radio access network devices, and terminal devices included in the mobile communication system.
The Terminal equipment in the mobile communication system 100 may also be referred to as a Terminal, a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and the like. The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smart city), a wireless terminal in home (smart home), and the like. The terminal device and the chip applicable to the terminal device are collectively referred to as a terminal device in the present application. It should be understood that the embodiment of the present application does not limit the specific technology and the specific device form adopted by the terminal device.
In the mobile communication system 100, the radio access network device 120 is an access device that the terminal device accesses to the mobile communication system wirelessly. The radio access network device 120 may be: a base station, an evolved node b (enb), a home base station, an Access Point (AP) in a WIFI system, a wireless relay node, a wireless backhaul node, a Transmission Point (TP), a Transmission and Reception Point (TRP), etc., may also be a gNB in an NR system, or may also be a component or a part of a device that forms the base station, such as a Centralized Unit (CU), a Distributed Unit (DU), a baseband unit (BBU), etc. It should be understood that, in the embodiments of the present application, there is no limitation on the specific technology and the specific device form adopted by the radio access network device. In this application, a radio access network device is referred to as a network device for short, and if no special description is provided, network devices are referred to as radio access network devices in this application. In this application, the network device may refer to the network device itself, or may be a chip applied to the network device to complete a wireless communication processing function.
In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory. The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.
First, main terms referred to in the embodiments of the present application will be briefly described.
Authorized spectrum: since the resources of the electromagnetic radio waves are limited, strict regulations are internationally imposed on the division and use of the electromagnetic radio waves. The licensed spectrum is a portion of the spectrum in the radio-electromagnetic frequency domain. The licensed spectrum is severely restricted and protected, allowing access only to authorized users and their compliant devices, and users pay for this. At present, important departments such as public security, railway, civil aviation, radio and television, telecommunication and the like all have certain authorized frequency spectrums, communication of devices in the departments runs on the authorized frequency spectrums, particularly in the telecommunication industry, mobile phones used by people every day communicate through the authorized frequency spectrums owned by operators, and the three operators all have special frequency bands authorized by the national radio administration, so that the mobile communication of the public is not interfered.
Unlicensed spectrum: unlicensed spectrum is a spectrum that devices meeting certain specifications and standards can access and use. But must ensure that no interference is caused to other users. Typically, wireless-fidelity (WIFI) and bluetooth, which are frequently used by us, are transmitted through unlicensed spectrum. The international telecommunications union radio communications office has defined industrial, scientific and medical (ISM) frequency bands, which are mainly used by three organizations of industry, science and medicine, and need not to grant permission, certainly need to comply with certain transmission power, and cannot cause interference to other frequency bands.
In the 5G system, for feedback on whether the PDSCH on the licensed spectrum is correctly received, the time domain position (e.g., time slot) where the ACK/NACK information is fed back is indicated in advance by the network device. On the unlicensed spectrum, based on the principle of fair contention, when accessing and using an unlicensed frequency band, a network device or a terminal device needs to perform monitoring, for example, Listen Before Talk (LBT) or Clear Channel Assessment (CCA). This frequency band (channel) can only be used by other network devices or terminal devices if the frequency band is idle and not occupied by other network devices or terminal devices. Further, only after accessing this frequency band (channel) can the network device or the terminal device transmit information and data.
On the unlicensed spectrum, for the PDSCH sent by the network device, the terminal device needs to feed back ACK/NACK information, and the time domain position where the ACK/NACK information is fed back by the terminal device depends not only on the time domain position scheduled in advance by the network device, but also on whether the terminal device can successfully access the frequency band before the time domain position scheduled in advance by the network device. If the terminal device cannot access the frequency band (channel), ACK/NACK information cannot be fed back at the pre-scheduled time domain position, which may cause the network device to fail to know whether the terminal device correctly receives data, resulting in a communication problem between the network device and the terminal device, and seriously reducing communication efficiency and user experience. Therefore, how to increase the feedback opportunity of the ACK/NACK information on the unlicensed spectrum is a problem to be solved urgently.
Based on the above problems, the present application provides a method for transmitting feedback information, which can increase the feedback chance of feedback information on an unlicensed spectrum, reduce the occurrence of the situation that no resource sends feedback information to a great extent, avoid the communication problem between a network device and a terminal device because feedback information cannot be transmitted, and improve communication efficiency and user experience.
Fig. 2 is a schematic interaction diagram of a method 200 for transmitting feedback information according to an embodiment of the present application, where the method 200 may be applied in the scenario shown in fig. 1, and of course, may also be applied in other communication scenarios, and the embodiment of the present application is not limited herein.
It should be understood that in the embodiment of the present application, the method 200 is described by taking a terminal device and a network device as an example of an execution subject for executing the method 200. By way of example and not limitation, the execution subject of the execution method 200 may also be a chip applied to a terminal device and a chip applied to a base station.
As shown in fig. 2, the method 200 shown in fig. 2 may include steps 210 through 250. The various steps in method 200 are described in detail below in conjunction with fig. 2.
S210, the network equipment sends time-frequency resource configuration information of first feedback information corresponding to the first downlink message to the terminal equipment. Correspondingly, the terminal equipment receives the time-frequency resource configuration information of the first feedback information.
S220, the network device sends the first downlink message to the terminal device, and the terminal device receives the first downlink message accordingly.
S230, the terminal device accesses the channel, and the uplink transmission resource in the first time window is on the channel.
S240, after the terminal device accesses the channel (can use the channel), determining a first uplink transmission resource used for transmitting first uplink information on the channel, where the first uplink transmission resource is one of at least one uplink transmission resource included in a first time window, the first time window includes at least one uplink transmission resource, and each uplink transmission resource in the at least one uplink transmission resource is used for transmitting uplink information.
S250, the terminal device sends, to the network device, first feedback information and joint information of the first uplink information on the first uplink transmission resource, where the first feedback information is in response to the first downlink message. Accordingly, the network device receives the joint information on the first uplink transmission resource.
According to the feedback information transmission method, the terminal equipment can send the first feedback information on the pre-configured time-frequency resource of the first feedback information. The first feedback information may also be sent on a first uplink transmission resource of the one or more uplink transmission resources within the first time window. The terminal may send the joint information of the first feedback information and the first uplink information on a first uplink transmission resource. The sending opportunity of the first feedback information on the unlicensed spectrum can be increased, and the occurrence of the situation that the terminal equipment has no resource to send the feedback information is reduced to a great extent. The communication problem that the feedback information cannot be transmitted between the network equipment and the terminal equipment is avoided, and the communication efficiency and the user experience are improved.
Specifically, in S210, in the unlicensed spectrum, when there is data to be transmitted to the terminal device, the network device also needs to perform a channel access procedure. For example, through CCA or LBT procedures, a channel may (or may) be used only when it is listened to be idle. The possibility of (being able to) use this channel can be understood as: the terminal device performs channel monitoring to find that no other network or terminal device uses the channel, the channel is in an idle state, and then the terminal device can use the channel. In the present example, the access channel and the (possibly) usable channel are synonymous and both are replaceable.
After the terminal device accesses the channel, data or signaling and the like can be sent to the terminal device. After accessing the channel, the network device sends time-frequency resource configuration information of first feedback information corresponding to the first downlink message to the terminal device. I.e. the time-frequency resource location (which may also be referred to as a preconfigured feedback location) of the feedback information of the first downlink message is indicated to the terminal device by the network device. The first downlink message may include data and/or control signaling sent to the terminal device. For example, the first downlink message may be a PDSCH issued to the device, and the first feedback information is ACK or NACK information of the PDSCH. The first downlink message may also include control signaling sent to the terminal device, and may be Downlink Control Information (DCI), for example. The first downlink message is a control signaling for triggering the terminal device to perform channel state measurement, and the first feedback information is Channel State Information (CSI). Or the first downlink message may also be a control signaling for triggering the terminal device to perform other information feedback. The first feedback information is feedback information in response to the first downlink message. The first feedback information is carried on a channel. It should be understood that the channels accessed by the network device and the terminal device may be different. For example, it may be cross-carrier scheduling, the first downlink message (e.g., downlink data) sent by the network device is on carrier (CC) 1, and the first feedback information (e.g., ACK/NACK information) is sent to the network device on CC 2. It may also be scheduling across different sub-bands (sub-bands), or it may be scheduling across different partial Bandwidths (BWPs).
For example, when the first downlink message is the first PDSCH, the first feedback information corresponding to the first downlink message is first ACK or NACK information indicating whether the first PDSCH corresponding to the first PDSCH is correctly decoded. For example, a first ACK indicates that the first PDSCH was correctly decoded and a first NACK indicates that the first PDSCH was incorrectly decoded. The network device may inform the terminal device of the time-frequency resource configuration (preconfigured feedback location) of the first ACK or NACK information. Specifically, the time-frequency resource configuration of the first ACK or NACK information may be indicated by higher layer configuration information, for example, Downlink Control Information (DCI) on a PDCCH. Or notify the terminal equipment of the time-frequency resource configuration of the first ACK or NACK information through Radio Resource Control (RRC) signaling.
For another example, when the first downlink message is a control signaling for triggering the terminal to perform channel measurement, the first feedback information corresponding to the first downlink message is CSI of a channel. The network device may inform the terminal device of the time-frequency resource configuration (preconfigured feedback location) of the CSI of the channel. So that the terminal device feeds back the CSI of the channel to the network device on the pre-configured time-frequency resource of the CSI.
In S220, the network device sends the first downlink message to the terminal device. Accordingly, the terminal device receives the first downlink message. It should be understood that the first downlink message may be one or more downlink data, and each downlink data may be repeatedly transmitted multiple times. When the first downlink message is a plurality of downlink data, the first feedback information may be feedback information for all or part of the plurality of downlink data. For example, if the first downlink message is a first PDSCH, the first PDSCH may be a plurality of PDSCHs. Or may be one PDSCH. Or may be a plurality of repetitions of one PDSCH. When the first PDSCH is a plurality of PDSCHs, the first feedback information is feedback information of whether some or all PDSCHs in the plurality of PDSCHs are correctly decoded.
In S230, after the terminal device receives the first downlink message and the time-frequency resource configuration information of the first feedback information corresponding to the first downlink message, it is determined that the first feedback information needs to be sent to the network device on the channel where the first feedback information is located. Therefore, the terminal device needs to perform a procedure of accessing the channel. For example, with CCA or LBT, the channel may be accessed only when it is listened to that the channel is clear and the first feedback information has been generated. The first feedback information may be sent to the network device after accessing the channel. It should be understood that in the unlicensed spectrum, the channel listening process of the terminal device may be always present. When the terminal device has data or information to transmit and the channel is idle, the terminal device can access the channel and further transmit the data or information to be transmitted.
Since the process of accessing the channel by the terminal device requires a certain amount of time, the time used by the process of accessing the channel by the terminal device (the process of channel listening and accessing the channel) can be regarded as a time period in the time domain. This time period can be considered a contention window. If the process of accessing the channel by the terminal equipment is completed before the time domain position of the pre-configured first feedback information is started. For example: when the first feedback information is first ACK or NACK information, assuming that the time domain position of the preconfigured first ACK or NACK information is all symbols (symbols) on a 3 rd slot (slot) on the channel, the process of accessing the channel by the terminal device is already completed before the 3 rd slot. Or, assuming that the time domain positions of the preconfigured first ACK or NACK information are from 5th symbol to 7 th symbol of a 3 rd slot (slot) on the channel, the process of accessing the channel by the terminal device is already completed before the fifth symbol of the 3 rd slot. The terminal device may send the first ACK or NACK information to the network device at a pre-configured time-frequency location of the first ACK or NACK information.
If the process of accessing the channel by the terminal equipment is completed after the time domain position of the pre-configured first feedback information is started. For example: when the first feedback information is first ACK or NACK information, assuming that the time domain position of the preconfigured first ACK or NACK information is all symbols (symbols) of a 3 rd slot (slot) on the channel, and an end time of a process of accessing the channel by the terminal device is later than a start time of the 3 rd slot. Or, assuming that the time domain position of the first ACK or NACK information is the 5th to 7 th symbols in the 3 rd slot (slot) of the channel, the process of accessing the channel by the terminal device is completed after the 5th symbol of the 3 rd slot is started. Since the time domain resource of the preconfigured first ACK or NACK information has been missed. The terminal device cannot transmit the first ACK or NACK information in the preconfigured time domain resource of the first ACK or NACK information. This results in that the terminal device cannot feed back the first ACK or NACK information.
Therefore, in step S240, after the terminal device accesses the channel, the terminal device determines a first uplink transmission resource in one or more uplink transmission resources within a first time window on the channel, where the first uplink transmission resource is used for transmitting first uplink information. The uplink transmission resources within the first time window are on the channel. The first time window includes one or more uplink transmission resources, each uplink transmission resource being used for transmitting uplink information. The first time window corresponds to the first feedback information, i.e. the first time window is configured for the first feedback information. The terminal device may send the first feedback information on the uplink transmission resource included in the first time window. The end time of the channel access by the terminal device may be at any time domain position within the time domain range included in the first time window. When the first time window includes a plurality of uplink transmission resources, the ending time of the terminal device accessing the channel may be earlier than the starting time of any one of the uplink transmission resources included in the first time window, or later than the starting time of any one of the uplink transmission resources included in the first time window.
The information of the first time window may be pre-negotiated between the terminal device and the network device and pre-stored by both of them, that is, the information such as the time-frequency position of the first time window may be pre-configured. The first time window includes one or more uplink transmission resources, each uplink transmission resource being used for transmitting uplink information. The first time window may be a time domain range (time period), i.e. the first time window may be a length of time or a time range. A plurality of uplink transmission resources are included in this time domain. The time-frequency information of each uplink transmission resource is notified to the terminal device in advance by the network device through the indication information or the configuration information, and each uplink transmission resource is dedicated to transmitting one kind of uplink information. The first time window includes one or more uplink transmission resources on the channel. And after the terminal equipment accesses the channel, determining a first uplink transmission resource in the one or more uplink transmission resources. It should be understood that when there is only one uplink transmission resource in the first time window, the uplink transmission resource is the first uplink transmission resource. Since the process of accessing the channel by the terminal device requires a certain time, the time used by the process of accessing the channel by the terminal device can be regarded as a time period in the time domain. The time domain position of the first uplink transmission resource is after the time period used by the terminal equipment to access the channel. That is, the ending time of the channel access process of the terminal device is earlier than the starting time of the first uplink transmission resource. The first uplink transmission resource is used for transmitting first uplink information. That is, in the pre-configuration, the first uplink transmission resource is dedicated to transmitting the first uplink information.
It should be understood that the one or more uplink transmission resources comprised by the first time window may not comprise the above pre-configured uplink transmission resource for transmitting the first feedback information. Of course, the above preconfigured uplink transmission resource for transmitting the first feedback information may also be included. The terminal device may transmit the first feedback information using one or more uplink transmission resources included within the first time window. The first time window may also not include uplink transmission resources, the first time window is only a time period or a time range, and the first time window does not include one or more preconfigured uplink transmission resources. In this case, the network device may schedule some resources in the first time window for the terminal device to transmit the first feedback information through the DCI, that is, schedule some resources in the first time window as uplink transmission resources.
It should also be understood that, when there are multiple uplink transmission resources in the first time window, the frequency domain of the multiple uplink transmission resources may be the same or different. The multiple uplink transmission resources may be located in different subcarriers, subbands, and partial bandwidths, that is, the frequency domain locations of the multiple uplink transmission resources are different. Of course, the multiple uplink transmission resources may also be located on the same subcarrier, subband and partial bandwidth, that is, the frequency domain locations of the multiple uplink transmission resources are the same.
It is also understood that the first time window may begin a first time unit, which may be a symbol or a time slot, after the network device schedules a last symbol of the time domain resources in response to the first feedback information corresponding to the first downlink message. I.e. the unit of the first time window may be a symbol or a time slot, etc. Ending after a preset time threshold, wherein the time period from beginning to end is the time length of the first time window. The size of the time threshold may be from the time unit when the network device schedules the first feedback information to the time point when the network device considers that the first feedback information sent by the terminal device is in a Discontinuous Transmission (DTX) state. For example, when the first downlink message is the first PDSCH, the first time window may start from a first symbol after a last symbol (13 th symbol) of a time domain resource (e.g., 7 th to 13 th symbols on a slot n) for scheduling and feeding back ACK/NACK of the first PDSCH, and end after being less than or equal to a time threshold (e.g., the time threshold is T slots), and then the time domain position of the first time window starts from the 1 st symbol of the slot n +1 and ends after the time domain position of being less than or equal to T slots. The time threshold is from the time when the network device schedules and feeds back the ACK/NACK of the first PDSCH to the time when the network device considers that the ACK/NACK sent by the terminal device is in a DTX state, that is, the network considers that the PDCCH for scheduling the first PDSCH is not received.
It should also be understood that the time length of the first time window may be configured by the network device through higher layer signaling or may be predefined by the protocol. The size of the predefined time window may be fixed or may be related to the amount of time it takes for the terminal device to access the channel. For example, the longer the time it takes for the terminal device to access the channel, the longer the time length of the first time window.
It should also be understood that the first time window may be located within one Channel Occupancy Time (COT), i.e., the length of the first time window is less than one COT. Of course, the first time window may also include a plurality of COTs. The embodiments of the present application are not limited thereto.
It should also be understood that, in the case that there are multiple uplink transmission resources in the first time window, if the multiple uplink transmission resources are consecutive in the time domain (for example, the time domain interval between two adjacent uplink transmission resources is less than or equal to 16 microseconds), and on one channel (frequency band), for two adjacent uplink transmission resources located in one COT, if the terminal device accesses the channel on the first uplink transmission resource, LBT or CCA may not be performed on the second uplink transmission resource, that is, information or data may not be transmitted directly on the second uplink transmission resource without performing the procedure of accessing the channel on the second uplink transmission resource. However, if two adjacent uplink transmission resources in the first time window are discontinuous in the time domain resource (for example, the time domain interval of the two adjacent uplink transmission resources is greater than 16 microseconds) or different in the frequency domain, the terminal device needs to perform LBT or CCA on the two uplink transmission resources, that is, needs to perform a channel access procedure (a channel listening procedure) separately.
In step S250, the terminal device sends the joint information of the first feedback information and the first uplink information to the network device on the first uplink transmission resource. Specifically, the association information may be in any one of several forms as described below.
For example, the terminal device generates a codebook together with the first feedback information and the first uplink information that is transmitted by the network device in advance on the first uplink transmission resource, and then encodes the codebook to obtain the joint information. The two pieces of information together to generate a codebook can be understood as: for example, two PDSCHs may feed back ACK/NACK together, i.e. feeding back two ACK/NACK information at the same time, and then the two ACK/NACK information together generate ACK/NACK bits, which is called a codebook. Or, the terminal device generates codebooks for the first feedback information and the first uplink information originally transmitted by the first uplink transmission resource respectively and independently, and then obtains the joint information after independently or jointly coding the two codebooks. Or, the terminal device performs some operation on the first feedback information and the first uplink information to obtain the joint information, and optionally, may perform a logical and operation to obtain the joint information. Alternatively, the joint information may be one of the first feedback information and the first uplink information, for example, the joint information is higher priority information of the first feedback information and the first uplink information. The terminal device may also preempt a certain uplink transmission resource in the first time window to send the first feedback information, and does not send preconfigured uplink information on the uplink transmission resource. That is, the terminal device may transmit the first feedback information using a dedicated uplink transmission resource configured for other uplink information. Or, the joint information may be obtained by scrambling the first uplink information with the first feedback information, or may be obtained by scrambling the first feedback information with the first uplink information. For example, the new feedback information generated by scrambling both is the joint information. The embodiment of the present application does not limit the specific generation process of the associated information.
For example, if the first feedback information is first ACK or NACK information, and the first uplink information is PUSCH, the first ACK or NACK information may be transmitted by occupying a part of resources in uplink transmission resources for data in the PUSCH in a puncturing (puncturing) or rate matching (rate matching) manner. The embodiments of the present application are not limited thereto.
For another example, if the first feedback information is first ACK or NACK information and the first uplink information is CSI, the first ACK or NACK information and CSI may be jointly encoded to obtain the joint information. Alternatively, the joint information may be the first ACK or NACK information or CSI. For example, when the first ACK or NACK information has a higher priority, and the uplink transmission resource configured for the CSI is less or the maximum code rate is lower, and only the first ACK or NACK information or the CSI can be transmitted, the terminal device may transmit the first ACK or NACK information using the configured uplink transmission resource, but not transmit the CSI.
If the terminal device does not access the channel in the time domain range of the first time window, the terminal device cannot send the first feedback information to the network device on the uplink transmission resource in the first time window. In this case, if the network device configures multiple time windows for the first feedback information, after the first time window ends, the terminal device may continue to use the above scheme to perform joint transmission of the first feedback information in another preconfigured time window. The embodiments of the present application are not limited thereto.
If the network device has not received the first feedback information after the first time window ends, the first feedback information is considered to be in a Discontinuous Transmission (DTX) state. The network device considers that the first downlink message is not successfully sent to the terminal device. In this case, the network device may resend the first downlink message to the terminal device.
In the method for transmitting feedback information provided by the present application, the network device sends the time-frequency configuration of the first time window to the terminal device, and the first time window includes one or more uplink transmission resources configured for other uplink information by the network device. The terminal device may transmit the first information on a first uplink resource in the uplink transmission resources included in the first time window. That is, the first feedback information and the joint information of the first uplink information preconfigured by the first uplink transmission resource are sent on the first uplink transmission resource. The feedback opportunity of the first feedback information on the unauthorized frequency spectrum can be increased to a great extent, the situation that the terminal equipment does not send the feedback information by resources is reduced, and the communication problem between the network equipment and the terminal equipment because the feedback information cannot be transmitted is avoided. In addition, the network device only needs to detect the first feedback information in the uplink transmission resource within the time range of the first time window, and does not need to detect the first feedback information in other uplink transmission resources, so that the range of the network device needing blind detection can be reduced, and resource consumption caused by the fact that the network device configures more resources for more potential sending opportunities is reduced. The network equipment does not need to wait for the first feedback information for a long time, so that the time for the network equipment to wait for the first feedback information is shortened, and the delay of feeding back the first feedback information is reduced. In addition, the network device does not need to additionally configure or schedule uplink transmission resources for the first feedback information, so that the uplink transmission resources can be saved, the network device can more efficiently realize the scheduling of the resources, other uplink information can be more reliably transmitted, and the utilization rate of the resources is improved.
The method for transmitting feedback information provided by the present application will be described with reference to specific examples.
Fig. 3 is a schematic diagram of a time window according to an embodiment of the present application, as shown in fig. 3. In fig. 3, the first downlink message is the first PDSCH, the time domain unit of the time window is the time slot, and the first feedback information is the first ACK or NACK information of the first PDSCH will be described as an example. In fig. 3, the channel for the terminal device to monitor access and the channel for transmitting the uplink information are the same channel. That is, the LBT or CCA procedure performed by the terminal device is the same as the frequency domain in which the first time window is located. The terminal device receives the first PDSCH. The terminal needs to feed back ACK or NACK information corresponding to the first PDSCH.
As shown in fig. 3, the time domain position of the first ACK or NACK information corresponding to the first PDSCH preconfigured by the network device is a partial symbol on the slot n-1. The time domain of the first time window ranges from time slot n to time slot n +3, i.e. the first time window comprises 4 time slots in the time domain. The first time window includes 3 uplink transmission resources, which are respectively used for transmitting third ACK or NACK information corresponding to the third PDSCH in time slot n. The third PDSCH is different from the first PDSCH, and the third ACK or NACK information is also different from the first ACK or NACK information. Uplink transmission resources for transmitting CSI on slot n +2, and uplink transmission resources for transmitting PUSCH on slot n + 3. The terminal equipment does not access the channel in the time slot n-1 (or before the time slot n-1), that is, the end time of the terminal equipment accessing the channel is later than the start time of the uplink transmission resource (the resource of the first ACK or NACK information) in the time slot n-1. The terminal equipment cannot send the first ACK or NACK information on the time-frequency resource of the first ACK or NACK information corresponding to the pre-configured first PDSCH on the time slot n-1.
As shown in fig. 3, if the terminal device fails to access the channel at (or before) slot n, the terminal device cannot transmit the first ACK or NACK information at slot n. The failure to access the channel on (or before) slot n can be understood as: the end time (time T3) of the terminal accessing the channel is later than the start time (time T1) of the uplink transmission resource in the time slot n, or the channel is occupied by other terminal devices and cannot access the channel. For example, when the uplink transmission resource in the slot n occupies the 5th symbol to the 9 th symbol in the slot n, the end symbol of the terminal device accessing the channel is later than the 5th symbol in the slot n. If the terminal device accesses the channel at time slot n +2 (or before time slot n + 2), the terminal device may send the first ACK or NACK information on the uplink transmission resource at time slot n +2 or time slot n + 3. Accessing the channel on time slot n +2 (or before time slot n + 2) can be understood as: the end time (time T2) of the terminal device accessing the channel is earlier than the start time (time T4) of the uplink transmission resource on the time slot n + 2. For example, when the uplink transmission resource in the slot n +2 occupies the 5th symbol to the 9 th symbol in the slot n +2, the end symbol of the terminal device accessing the channel is earlier than the 5th symbol in the slot n + 2. If the terminal device accesses the channel in slot n +2 (or before slot n + 2), the terminal device may send the first ACK or NACK information and the CSI combination information in slot n + 2.
It should be understood that if the time interval between the ending time of the uplink transmission resource for transmitting CSI in the slot n +2 and the starting time of the uplink transmission resource for transmitting PUSCH in the slot n +3 is less than a certain threshold (for example, 16 microseconds), that is, the uplink transmission resource for transmitting CSI and the uplink transmission resource for transmitting PUSCH are consecutive in the time domain, and the two uplink transmission resources are the same in the frequency domain, so that the terminal device does not need to perform a new access channel procedure for the uplink transmission resource for transmitting PUSCH in the slot n + 3. It is also possible to directly choose to send the first ACK or NACK information and the joint information of PUSCH on slot n + 3. If the time interval between the ending time of the uplink transmission resource for transmitting the CSI in the slot n +2 and the starting time of the uplink transmission resource for transmitting the PUSCH in the slot n +3 is greater than a certain threshold (for example, 16 microseconds), that is, the uplink transmission resource for transmitting the CSI and the uplink transmission resource for transmitting the PUSCH are not continuous in the time domain, a process of accessing the channel in the slot n +3 is also required. Fig. 3 shows a case where uplink transmission resources for transmitting CSI and uplink transmission resources for transmitting PUSCH are discontinuous in a time domain. If the terminal device accesses the channel on time slot n +3 (or before time slot n + 3). The terminal device may send the first ACK or NACK information on the uplink transmission resource on slot n + 3. If the terminal device is in the access channel after slot n +3 (the end time of the access channel is after the start time of the uplink transmission resource of the PUSCH). The terminal device is unable to send the first ACK or NACK information to the network device on the plurality of uplink transmission resources included in the first time window. In this case, the network device considers that the first ACK or NACK information is in the DTX state after the first time window ends. The first ACK or NACK information is not blindly detected on subsequent uplink transmission resources.
It should be understood that fig. 3 is merely exemplary, and should not limit embodiments of the present application. For example, the first time window may include preconfigured uplink transmission resources for transmitting the first ACK or NACK information, the first time window may further include more time slots, the first time window may be a longer time length, the first time window may further include uplink transmission resources for transmitting other uplink information, one or more uplink transmission resources in the first time window may occupy all symbols on the respective time slot, and frequency domain positions of the plurality of uplink transmission resources included in the first time window may also be different. For example, as shown in FIG. 4, FIG. 4 is a schematic diagram of a time window of one embodiment of the present application. Fig. 4 shows a case where the frequency domain positions of the plurality of uplink transmission resources included in the first time window are different. For the case shown in fig. 4, the terminal device needs to perform a procedure of accessing a new channel on each timeslot (on the uplink transmission resource). The embodiments of the present application are not limited thereto. For another example, as shown in fig. 5, fig. 5 is a schematic diagram of a time window according to an embodiment of the present application. Fig. 5 shows the unit of the first time window as a symbol, i.e. the first time window is a time window at the symbol level. For example, the first time window starts from some symbols on slot n-1. The embodiments of the present application are not limited thereto.
Optionally, as an embodiment, fig. 6 is a schematic interaction diagram of a method for transmitting feedback information according to another embodiment of the present application. As shown in fig. 6, the method 200 further includes:
s221, the network device sends first configuration information to the terminal device, where the first configuration information includes information of the first time window. Correspondingly, the terminal equipment receives the first configuration information.
In particular, the information of the first time window may be predefined, i.e. pre-negotiated and pre-stored by the terminal device and the network device. The information of the first time window may also be notified to the terminal device by the network device, that is, by sending the first configuration information to the terminal device, where the first configuration information includes the information of the first time window. After receiving the first configuration information and accessing the channel, the terminal device may send the first feedback information by using the uplink transmission resource included in the first time window. The information of the first time window may include the start position and the end position of the first time window, or may include the absolute time length of the first time window, or may include information that the first time window includes multiple uplink transmission resources, for example, the time-frequency positions and sizes of the multiple uplink transmission resources, the priorities of the uplink information transmitted by the multiple uplink transmission resources, and the like. The first configuration may be through an RRC signaling bearer or may also be through other control signaling bearers. The embodiments of the present application are not limited thereto.
Optionally, as an embodiment, when the uplink transmission resource is multiple, the first uplink transmission resource is a first uplink transmission resource in the first time window after the end time of accessing the channel by the terminal device;
or the first uplink transmission resource is an uplink transmission resource in which uplink information with the lowest code rate is located in the uplink information transmitted by the plurality of uplink transmission resources within the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information;
or, the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window;
or the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority in the plurality of uplink information transmitted by the plurality of uplink transmission resources is located in the first time window.
Specifically, in the embodiment of the present application, since a process of accessing a channel by a terminal device requires a certain time, a time period used by the process of accessing the channel by the terminal device may be regarded as a time period in a time domain. And the first time window includes a plurality of uplink transmission resources, so that after the end time of accessing the channel by the terminal device, one or more uplink transmission resources may still remain in the first time window. After the terminal device accesses the channel, it can be understood that the terminal device accesses the channel after the end time (after the time domain position) of the channel accessing process.
For example, the description will be made by taking the example shown in fig. 3. If the terminal device accesses the channel at time slot n +2 (or before time slot n + 2), 2 uplink transmission resources remain in the first time window after the time (time T2) when the terminal device accesses the channel. If the terminal device accesses the channel at time slot n +3 (or before time slot n +3), 1 uplink transmission resource remains in the first time window after the end time of accessing the channel by the terminal device. If the terminal device accesses the channel at time slot n (or before time slot n), the first time window has 3 uplink transmission resources left after the end time (time T1) of the terminal device accessing the channel. Therefore, the terminal device may determine the first uplink transmission resource among the remaining plurality of uplink transmission resources. Specifically, there may be several following ways to determine the first uplink transmission resource:
the first mode is as follows: the first uplink transmission resource is the first uplink transmission resource in the first time window after the end time of the terminal device accessing the channel.
The second mode is as follows: the first uplink transmission resource is an uplink transmission resource in which uplink information with the lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located in the first time window.
The third mode is as follows: the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window.
The fourth mode is that: the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority in the plurality of uplink information transmitted by the plurality of uplink transmission resources is located in the first time window.
For the first manner, after the terminal device accesses the channel, one or more uplink transmission resources may still remain in the first time window. And when one or more uplink transmission resources are left in the first time window, the first uplink transmission resource is the uplink transmission resource with the lowest code rate in the remaining uplink transmission resources. For example, the description is given by taking the example shown in fig. 7, and fig. 7 is a schematic diagram of a time window according to an embodiment of the present application. In fig. 7, the first downlink message is a first PDSCH, a time domain unit of a time window is a time slot, the first feedback information is first ACK or NACK information of the first PDSCH, and a time domain position of the first ACK or NACK information corresponding to the first PDSCH preconfigured by the network device is a partial symbol on a time slot n-1. The time domain range of the first time window is from time slot n to time slot n +3 for illustration.
If the terminal device accesses the channel at time slot n (or before time slot n), the first time window has 3 uplink transmission resources left after the end time (time T5) of the terminal device accessing the channel. The starting time of the 3 uplink transmission resources is time T1, time T4 and time T6 in sequence. The starting time of the 3 uplink transmission resources sequentially comprises the following steps from small to large according to the time interval from the end time (time T5) of the access channel of the terminal equipment in the time domain: and transmitting the third ACK or NACK information uplink transmission resource, the uplink transmission resource for transmitting the CSI and the uplink transmission resource for transmitting the PUSCH. The third ACK or NACK information corresponds to the third PDSCH, which is different from the first PDSCH, and is also different from the first ACK or NACK information. If the terminal device accesses the channel at time slot n +2 (or before time slot n + 2), the ending time of the access channel is time T2, and the first uplink transmission resource included in the first time window after the terminal device accesses the channel is the CSI uplink transmission resource. That is, the first uplink transmission resource is a CSI uplink transmission resource. The transmission delay can be reduced, and the transmission reliability can be improved.
In the second method, which is described by taking the example shown in fig. 7 as an example, if the terminal device accesses the channel in the time slot n (or before the time slot n), 3 uplink transmission resources remain in the first time window after the time (T5) when the terminal device accesses the channel. The 3 uplink transmission resources sequentially comprise the following steps from small to large according to the time interval from the time (T5 time) when the terminal device accesses the channel in the time domain: and transmitting the third ACK or NACK information uplink transmission resource, the uplink transmission resource for transmitting the CSI and the uplink transmission resource for transmitting the PUSCH. Assuming that the code rate of the PUSCH in the uplink information transmitted by the 3 uplink transmission resources is the lowest, the first uplink transmission resource is the uplink transmission resource for transmitting the PUSCH. The joint information is transmitted at the uplink transmission resource of the uplink information with the lowest transmission code rate, so that the reliability of the transmission of the joint information, namely the reliability of the transmission of the first feedback information, can be ensured. It should be understood that for the case shown in fig. 6, the terminal device also needs to perform the procedure of accessing the channel (i.e., the procedure of channel listening) on the time slot n +2 and the time slot n +3, respectively.
In the third method, taking the example shown in fig. 7 as an example, if the terminal device accesses the channel in the time slot n (or before the time slot n), after the end time (time T5) when the terminal device accesses the channel, the first time window has 3 uplink transmission resources left. The starting time of the 3 uplink transmission resources sequentially comprises the following steps from small to large according to the time interval from the end time (time T5) of the access channel of the terminal equipment in the time domain: and transmitting the third ACK or NACK information uplink transmission resource, the uplink transmission resource for transmitting the CSI and the uplink transmission resource for transmitting the PUSCH. It is assumed that the uplink transmission resource occupying the most resource units among the 3 uplink transmission resources is the uplink transmission resource for transmitting the PUSCH. Namely, the first uplink transmission resource is an uplink transmission resource for transmitting the PUSCH. The joint information is transmitted in the uplink transmission resource occupying the most resource units, so that the reliability of the transmission of the joint information, namely the reliability of the transmission of the first feedback information, can be ensured. It should be understood that the resource unit here may be a Resource Element (RE) or a Resource Block (RB), and the like, and the application is not limited herein.
In the fourth method, taking the example shown in fig. 7 as an example, if the terminal device accesses the channel in the time slot n (or before the time slot n), 3 uplink transmission resources remain in the first time window after the end time (time T5) when the terminal device accesses the channel. The time intervals from the end time (time T5) of the access channel of the terminal device in the time domain are in turn from small to large: and transmitting the third ACK or NACK information uplink transmission resource, the uplink transmission resource for transmitting the CSI and the uplink transmission resource for transmitting the PUSCH. And if the highest priority of the uplink information transmitted by the 3 uplink transmission resources is the third ACK or NACK information, transmitting the first feedback information on the third ACK or NACK information. The transmission delay of the joint information can be reduced, and the transmission efficiency of the first feedback information can be improved. If the terminal device accesses the channel at time slot n +2 (or before time slot n + 2), the end time of the access channel is time T2. The uplink transmission resource included in the first time window after the terminal device accesses the channel is an uplink transmission resource for transmitting CSI and an uplink transmission resource for transmitting PUSCH. The priority of the two compared CSI is higher, that is, the first uplink transmission resource is a CSI uplink transmission resource. If the uplink transmission resource, included in the first time window, in which the uplink information with the lowest priority is located in the multiple uplink information transmitted by the multiple uplink transmission resources after the channel is accessed is determined as the first uplink transmission resource, the transmission of the uplink information with higher priority in the first time window can be ensured, the transmission guarantee of the uplink information with higher priority is improved, and the communication efficiency is improved. It should be understood that for the case shown in fig. 6, the terminal device also needs to perform the procedure of accessing the channel on time slot n +2 and time slot n +3, respectively.
It should be appreciated that the first uplink transmission resource may be determined in other manners besides the manner described above for determining the first uplink transmission resource in the plurality of uplink transmission resources included in the first time window. Alternatively, any combination of the above manners may be used, and each manner may account for a different weight to determine the first uplink transmission resource. The embodiments of the present application are not limited thereto.
Optionally, as an embodiment, fig. 8 is a schematic interaction diagram of a method for transmitting feedback information according to another embodiment of the present application. As shown in fig. 8, the method 200 further includes:
s211, the network device sends the time-frequency resource configuration information of the second feedback information corresponding to the second downlink message to the terminal device. Correspondingly, the terminal equipment receives the time-frequency resource configuration information of the second feedback information.
S222, the network device sends the second downlink message to the terminal device. Correspondingly, the terminal device receives the second downlink message.
S241, the terminal device determines third feedback information according to the first feedback information and the second feedback information, where the second feedback information is in response to the second downlink message;
in S250, the sending, by the terminal device, the joint information of the first feedback information and the first uplink information to the network device on the first uplink transmission resource includes:
s251 the terminal device sends the joint information of the third feedback information and the first uplink information to the network device on the first uplink transmission resource.
Specifically, the method is described. In steps S211 and S222, if the terminal device receives the time domain resource configurations of the second downlink message and the second feedback information in addition to the time domain resource configurations of the first downlink message and the first feedback information, the second feedback information is in response to the second downlink message. Similarly, if the process of accessing the channel (the time of accessing the channel) by the terminal device is completed after the time domain position of the second feedback information configured in advance is started, the network device may also configure a second time window for the feedback of the second feedback information. The second time window may be a time domain range (time period or time length) within which one or more uplink transmission resources are included. Each uplink transmission resource is pre-configured to the terminal device and is dedicated to transmitting one kind of uplink information. The one or more uplink transmission resources may not include the above pre-configured uplink transmission resource for transmitting the second feedback information. Of course, the above pre-configured uplink transmission resource for transmitting the second feedback information may also be included. The terminal device may transmit the second feedback information using the uplink transmission resource included in the second time window. The second downlink message may include data and/or control signaling sent to the terminal device. For example, the second downlink message may be a PDSCH that is issued to the device, and the second feedback information is ACK or NACK information of the PDSCH. The second downlink message may also include control signaling sent to the terminal device, for example, the control signaling may be a PDCCH. When the second downlink message is a control signaling, which may be a control signaling for triggering the terminal device to perform channel measurement, the second feedback information is CSI. Or may also be control signaling for triggering the terminal device to perform other information feedback. The second feedback information is feedback information in response to the second downlink message. The second feedback information is carried on a channel. The information of the second time window may be predefined, i.e. pre-negotiated and pre-stored by the terminal device and the network device. The information of the second time window may also be notified to the terminal device by the network device. The terminal device may also determine a second uplink transmission resource in the uplink transmission resources included in the second time window, where the second uplink transmission resource is used to send the second feedback information and the joint information of the second uplink information. The second uplink transmission resource is preconfigured to be dedicated for transmitting the second uplink information. It should be understood that the second time window is similar to the first time window, and the related description may refer to the description of the first time window, and the description is omitted here for brevity.
In the case that the first time window and the second time window overlap in time domain, the terminal device needs to determine which information is sent on the first uplink transmission resource. That is, in step S241, the terminal device determines the third feedback information according to the first feedback information and the second feedback information. The third feedback information may be one of the first feedback information and the second feedback information, or information obtained after logical and operation of the first feedback information and the second feedback information.
In step S251, the terminal device sends the joint information of the third feedback information and the first uplink information on the first uplink transmission resource. The corresponding network device receives the joint information on the first uplink transmission resource.
It should be understood that in fig. 8, the steps shown in dashed lines are optional steps.
The method for transmitting feedback information provided by the present application will be described with reference to specific examples.
Fig. 9 is a schematic diagram of a time window according to an embodiment of the present application, as shown in fig. 9. In fig. 9, the first downlink message is the first PDSCH, and the time domain unit of the time window is the time slot. The first feedback information is first ACK or NACK information of the first PDSCH, the second downlink message is the second PDSCH, the second feedback information is second ACK or NACK information of the second PDSCH, and a time domain position of the first ACK or NACK information corresponding to the first PDSCH preconfigured by the network device is a partial symbol on the time slot n-1.
As shown in fig. 9, the first time window has a time domain ranging from slot n to slot n +3, including 4 slots. The first time window includes 3 uplink transmission resources, which are uplink transmission resources in a time slot n for transmitting third ACK or NACK information corresponding to the third PDSCH, uplink transmission resources in a time slot n +2 for transmitting fourth ACK or NACK information corresponding to the fourth PDSCH, and uplink transmission resources in a time slot n +3 for transmitting PUSCH. The third PDSCH is different from the first PDSCH and the second PDSCH, and the third ACK or NACK information is also different from the first ACK/NACK information and the first ACK/NACK information. The fourth PDSCH is also different from the first PDSCH and the second PDSCH described above, and the third ACK/NACK information is also different from the fourth ACK/NACK information.
The terminal device has received the second PDSCH. The time domain of the second time window ranges from time slot n +2 to time slot n +5, including 4 time slots. The second time window includes 3 uplink transmission resources. Uplink transmission resources for transmitting the fourth ACK or NACK information at slot n +2, uplink transmission resources for transmitting PUSCH at slot n +3, and uplink transmission resources for transmitting CSI at slot n +5, respectively. The first time window and the second time window are on the same channel. The first time window and the second time window partially overlap temporally. The overlapped uplink transmission resource is used for transmitting the fourth ACK or NACK information uplink transmission resource and the PUSCH uplink transmission resource.
As shown in fig. 9, if the terminal device accesses the channel at time slot n +2 (or before time slot n + 2) (the end time of the access channel is earlier than the start time of the uplink transmission resource at time slot n + 2), the terminal device may also send the first feedback information on the uplink transmission resource at time slot n + 2. Since the uplink transmission resource in the time slot n +2 can also be used to transmit the second feedback information, the terminal device may send the first feedback information (the first ACK or NACK information) and the second feedback information (the second ACK or NACK information) in the time slot n +2, in which case the terminal device needs to determine which one or both of the uplink transmission resources (the first uplink transmission resource) in the time slot n +2 are sent. That is, the terminal device determines the third feedback information from the first feedback information and the feedback information. The third feedback information may be one of the feedback information and the first feedback information, the first feedback information and the second feedback information, or information obtained by logically and-operating the first feedback information and the second feedback information. And then the uplink transmission resource on the time slot n +2 sends the joint information of the third feedback information and the second ACK or NACK information.
As shown in fig. 9, if the terminal device accesses the channel only at time slot n +3 (or before time slot n +3) (the end time of the access channel is earlier than the start time of the uplink transmission resource at time slot n + 2), the terminal device may send the first feedback information (first ACK or NACK information) on the uplink transmission resource at time slot n +3, or may send the second feedback information (second ACK or NACK information) on the uplink transmission resource at time slot n + 3. In this case, the terminal device also needs to determine the third feedback information among the first feedback information and the second feedback information. And then the third feedback information and the joint information of the PUSCH are sent by the uplink transmission resource on the time slot n + 3. If the terminal device is in the access channel after the time slot n +3 (the ending time of the access channel is later than the starting time of the uplink transmission resource of the time slot n +3), the terminal device cannot send the first feedback information (the first ACK or NACK information) to the network device.
As shown in fig. 9, if the terminal device accesses the channel only at time slot n +5 (or before time slot n +5) (the end time of the access channel is earlier than the start time of the uplink transmission resource at time slot n +5), the terminal device may send the joint information of the second feedback (the second ACK or NACK information) and the CSI to the network device at the uplink transmission resource at time slot n + 5.
It should be understood that fig. 9 is only exemplary and should not limit the embodiments of the present application. For example, the first time window may include the preconfigured uplink transmission resource for transmitting the first ACK or NACK information, the second time window may also include the preconfigured uplink transmission resource for transmitting the second ACK or NACK information, the first time window and/or the second time window may further include more time slots, the first time window and/or the second time window may be a longer time length, the uplink transmission resource that the first time window and/or the second time window may further include may also be an uplink transmission resource for transmitting other uplink information, and the first time window and the second time window may not overlap in a time domain and/or a frequency domain. The embodiments of the present application are not limited thereto.
As a possible implementation manner, the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information;
or the third feedback information is feedback information corresponding to a time window with fewer uplink transmission resources in the first time window and the second time window, the second time window corresponds to the second feedback information, the second time window includes at least one uplink transmission resource, and each uplink transmission resource is used for transmitting uplink information;
or the third feedback information is feedback information corresponding to a time window which is included in the first time window and the second time window respectively and has less uplink transmission resources left after the terminal device accesses the channel.
Or the third feedback information is feedback information corresponding to a time window which is included in the first time window and the second time window respectively and has less time units left after the terminal device accesses the channel.
Or the third feedback information is feedback information with higher priority in the first feedback information and the second feedback information.
Specifically, when the first uplink transmission resource can only carry one of the first feedback information and the second feedback information, that is, the third feedback information is one of the first feedback information and the second feedback information.
As a specific implementation manner, the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information. The first feedback information and the second feedback information are the first ACK or NACK information and the second ACK or NACK information, respectively, for example. The third feedback information is ACK or NACK information having an earlier or later time domain position in the first ACK or NACK information and the second ACK or NACK information. That is, the third feedback information is the pre-configured first ACK or NACK information and the ACK or NACK information earlier or later in the time domain position of the second ACK or NACK information. This may enable the network device to learn feedback of earlier sent data. The communication efficiency is improved. If the later second ACK or NACK information needs to be fed back to the network device, the third feedback information is the second ACK or NACK information, so that the network device can timely acquire the feedback of the sent data, the time for receiving the feedback information is reduced, the feedback delay is further reduced, and the communication efficiency is improved.
As another specific implementation manner, the third feedback information is feedback information corresponding to a time window with less uplink transmission resources included in the first time window and the second time window. The first feedback information and the second feedback information are the first ACK or NACK information and the second ACK or NACK information, respectively, for example. For example, the first time window includes 5 uplink transmission resources, and the first time window is configured for the first ACK or NACK information. The second time window includes 3 uplink transmission resources, and the second time window is configured for the second ACK or NACK information. The third feedback information is the second ACK or NACK information. Therefore, the network equipment can timely acquire the feedback of the sent data, the time for receiving the feedback information is reduced, and the feedback time delay is further reduced.
As another specific implementation manner, the third feedback information is feedback information corresponding to a time window which is included in each of the first time window and the second time window and has less uplink transmission resources left after the terminal device accesses the channel. For example, the description will be given by taking the example shown in fig. 9. If the terminal device accesses the channel at the time slot n +3 (before the time domain position of the uplink transmission resource for transmitting the PUSCH), for the first time window, the number of the remaining uplink transmission resources after the end time of accessing the channel is 1. For the second time window, the number of the uplink transmission resources remaining after the end time of accessing the channel is 2. The time window with less uplink transmission resources left after accessing the channel is the first time window, and the first ACK or NACK information corresponding to the first time window, that is, the third feedback information is the first ACK or NACK information. Therefore, the network equipment can timely acquire the feedback of the sent data, the time for receiving the feedback information is reduced, and the feedback time delay is further reduced.
As another specific implementation manner, the third feedback information is feedback information corresponding to a time window which is included in each of the first time window and the second time window and has fewer time units left after the terminal device accesses the channel. For example, the description will be given by taking the example shown in fig. 9. If the terminal device accesses the channel in time slot n +2, for the first time window, the number of time units (time slots) remaining after the end time of accessing the channel is 1 (which is time slot n + 3). In the second time window, the number of time units (time slots) remaining after the end time of accessing the channel is 3 (time slots n +3, n +4, and n + 5). For the case that the terminal device schedules the new uplink transmission resource for the feedback information in the time window through the new DCI, the scheduling of the new uplink transmission resource for the feedback information in the time window by the terminal device through the new DCI may be understood as: taking the second time window shown in fig. 8 as an example, if the terminal device accesses the channel in the time slot n +2, the network device schedules a new uplink transmission resource for the second feedback information in the second time window through the new DCI, for example, the new uplink transmission resource is an uplink transmission resource in the time slot n +4, or is another available uplink transmission resource in the time slot n +2, or is another available uplink transmission resource in the time slot n +3, and the like. The smaller the number of time units remaining in the time window after accessing the channel, means that the less the possibility that the network device schedules a new uplink transmission for the feedback information in the time window through a new DCI, i.e., the less the potential opportunity to send the feedback information. Therefore, the network equipment can timely acquire the feedback of the sent data, the time for receiving the feedback information is reduced, and the feedback time delay is further reduced.
It should be understood that in the embodiment of the present application, the time unit may be one time slot or one symbol, or may also be other time domain units. The number of uplink transmission resources included in the time window may be less than the number of time units included in the time window, or may be greater than or equal to the number of time units included in the time window.
As another specific implementation manner, the third feedback information is feedback information with a higher priority in the first feedback information and the second feedback information. The first feedback information and the second feedback information are the first ACK or NACK information and the second ACK or NACK information, respectively, for example. The third feedback information is the first ACK/NACK information, assuming that the priority of the first ACK/NACK information is higher than the priority of the second ACK/NACK information.
It should be understood that, in the embodiment of the present application, the third feedback information may be determined in other ways besides the above-mentioned several ways. For example, it may be determined whether the third feedback information is the first feedback information or the second feedback information according to the size of the transmission resource occupied by the first feedback information and the second feedback information. The embodiments of the present application are not limited thereto.
Optionally, in an embodiment, the uplink transmission resources included in the first time window and/or the second time window are: at least one of an uplink transmission resource for transmitting CSI, an uplink transmission resource for transmitting PUSCH, and an uplink transmission resource for transmitting hybrid automatic repeat ACK or NACK information.
Specifically, since the first time window and the second time window each include one or more uplink transmission resources, each uplink transmission resource is used for transmitting uplink information. The uplink transmission resource in the first time window may be at least one of an uplink transmission resource for transmitting CSI, an uplink transmission resource for transmitting PUSCH, and an uplink transmission resource for transmitting ACK or NACK information. The above time-frequency configuration of several uplink transmission resources is notified to the terminal device by the network device through the configuration information or the indication information in advance. For example, the first time window includes 2 uplink transmission resources, which are uplink transmission resources for transmitting PUSCH and uplink transmission resources for transmitting CSI, respectively, and the transmission resources of the three kinds of information are pre-configured by the network device to the terminal device, that is, the terminal device knows in advance the time-frequency position of the uplink transmission resources for transmitting PUSCH, the uplink transmission resources for transmitting PUCCH, and the uplink transmission resources for transmitting CSI. Likewise, the second time window may include at least one of the plurality of uplink transmission resources.
Optionally, the first time window and the second time window may include one or more same uplink transmission resources. Of course, the first time window and the second time window may not include the same uplink transmission resource, that is, the first time window and the second time window are not overlapped in the time domain. Optionally, the first time window and the second time window may not overlap in the frequency domain.
It should be understood that, in the embodiment of the present application, the plurality of uplink transmission resources included in the first time window and/or the second time window may be other uplink transmission resources besides the several uplink transmission resources described above, for example, uplink transmission resources for transmitting Scheduling Requests (SRs). The embodiments of the present application are not limited thereto.
Optionally, as an embodiment, fig. 10 is a schematic interaction diagram of a method for transmitting feedback information according to another embodiment of the present application. As shown in fig. 10, the method 200 further includes:
s260, the terminal device sends indication information to the network device. The indication information is used to instruct the terminal device to send the joint information on the first uplink transmission resource. Accordingly, the network device receives the indication information.
Specifically, the first time window includes a plurality of uplink transmission resources, and each uplink transmission resource is used for transmitting uplink information. Therefore, after the terminal device determines the first transmission resource after the plurality of uplink transmission resources, the joint information may be sent to the network device on the first transmission resource. Therefore, it is necessary to inform the network device to send the joint information to the network device on the first transmission resource. Specifically, indication information may be sent to the network device, where the indication information is used to indicate that the terminal device carries the joint information on the first uplink transmission resource. Accordingly, after receiving the indication information, the network device may determine the first uplink transmission resource according to the indication, and detect the combination information only in the first uplink transmission resource, thereby reducing the detection range of the network device, and enabling the network device to accurately determine the uplink transmission resource for transmitting the combination information. The resource consumption of the network equipment is reduced, and the communication efficiency is improved.
Specifically, the terminal device may notify the network device of the instruction information in the following form.
As a possible implementation manner, a cyclic shift value of a demodulation reference signal (DMRS) of the first uplink information is K, where the K is used to instruct the terminal device to transmit the joint information in the first uplink transmission resource.
The first uplink transmission resource transmits joint information of the first uplink information and the first feedback information. Therefore, the terminal device and the network device may pre-define a DMRS cyclic shift value of certain uplink information as K, where the K is used to indicate that the joint information is transmitted in the first uplink transmission resource of the terminal device. Namely, the DMRS cyclic shift value of the predefined first uplink information is K. After determining the first uplink transmission resource, the terminal device may set the DMRS cyclic shift value transmitted by the first uplink transmission resource to K. When detecting that the DMRS cyclic shift value of a certain uplink resource is K, the network device may determine that the uplink transmission resource where the uplink information is located is the first uplink resource, and the first uplink resource carries the joint information.
As another possible implementation manner, the first uplink information may be scrambled by a first Radio Network Temporary Identity (RNTI), where the first RNTI is used to instruct the terminal device to transmit the joint information in the first uplink resource. The first uplink transmission resource transmits joint information of the first uplink information and the first feedback information. Therefore, the terminal device and the network device may predefine that the joint information is scrambled using a special RNTI, i.e. the predefined joint information is scrambled using the first RNTI. After determining the first uplink transmission resource, the terminal device may scramble the joint information transmitted by the first uplink transmission resource with the first RNTI. When detecting that the uplink information carried on a certain uplink resource is scrambled by using the first RNTI, the network device may determine that the uplink transmission resource where the uplink information is located is the first uplink resource, and the first uplink resource carries the joint information.
It should be understood that the above two specific indication manners can be regarded as implicit indication manners, that is, the network device and the terminal device may predefine certain specific fields in the uplink information or a special scrambling manner to distinguish the first uplink information, so as to determine the first uplink transmission resource for transmitting the joint information. The terminal device can select different resources to implicitly indicate uplink transmission resources of the carried joint information, and the network device determines which of the uplink transmission resources carrying the joint information and the carried joint information is by performing energy detection on the different uplink transmission resources and the like. Besides the two possible indication manners, other implicit indication manners may be used to indicate the transmission of the joint information in the first uplink transmission resource. The embodiments of the present application are not limited thereto.
It should also be understood that the terminal device may inform the network device which uplink transmission resource is the first uplink transmission resource by using the displayed indication manner. For example, after determining the first uplink transmission resource, indication information may be sent to the network device, where the indication information explicitly informs the network device which uplink transmission resource is the first uplink transmission resource. After receiving the indication information, the network device may determine the first uplink transmission resource, so as to correctly receive the joint information.
Optionally, as an embodiment, the network device may also instruct, through new signaling (for example, a new RRC signaling and/or an added field in DCI), on which uplink transmission resource the terminal device multiplexes, that is, on which uplink transmission resource the terminal device jointly transmits. Or to indicate on which uplink resources the terminal device can multiplex. That is, the network device may directly notify the terminal device which uplink transmission resource is the first uplink transmission resource, and may be used to carry the joint information.
It should be understood that, in the above-mentioned manner in which the network device directly notifies the terminal device which uplink transmission resource to perform joint transmission, the uplink transmission resource indicated by the network device may or may not be included in the above-mentioned first time window. The application is not limited herein.
It should also be understood that, in various embodiments of the present application, first, second, etc. are used merely to indicate that a plurality of objects are different. For example, the first time window and the second time window are merely to show different time windows. And should not have any influence on the time window itself, and the above-mentioned first, second, etc. should not impose any limitation on the embodiments of the present application.
It should also be understood that the above description is only for the purpose of facilitating a better understanding of the embodiments of the present application by those skilled in the art, and is not intended to limit the scope of the embodiments of the present application. Various equivalent modifications or changes will be apparent to those skilled in the art in light of the above examples given, for example, some steps of the method 200 described above may not be necessary, or some steps may be newly added, etc. Or a combination of any two or more of the above embodiments. Such modifications, variations, or combinations are also within the scope of the embodiments of the present application.
It should also be understood that the foregoing descriptions of the embodiments of the present application focus on highlighting differences between the various embodiments, and that the same or similar elements that are not mentioned may be referred to one another and, for brevity, are not repeated herein.
It should also be understood that the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic thereof, and should not constitute any limitation to the implementation process of the embodiments of the present application.
It should also be understood that in the embodiment of the present application, "preset" or "predefined" may be implemented by saving a corresponding code, table, or other means that can be used to indicate related information in advance in a device (for example, including a terminal device and a network device), and the present application is not limited to a specific implementation manner thereof.
It should also be understood that the manner, the case, the category, and the division of the embodiments are only for convenience of description and should not be construed as a particular limitation, and features in various manners, the category, the case, and the embodiments may be combined without contradiction.
It is also to be understood that the terminology and/or the description of the various embodiments herein is consistent and mutually inconsistent if no specific statement or logic conflicts exists, and that the technical features of the various embodiments may be combined to form new embodiments based on their inherent logical relationships.
The method for transmitting feedback information according to the embodiment of the present application is described in detail above with reference to fig. 1 to 10, and the communication apparatus according to the embodiment of the present application is described in detail below with reference to fig. 11 to 16.
Fig. 11 is a schematic block diagram of a communication apparatus 300 according to an embodiment of the present application, where the apparatus 300 may correspond to the terminal device described in the foregoing method 200, and may also be a chip or a component applied to the terminal device, and each module or unit in the apparatus 300 is respectively configured to execute each action or process performed by the terminal device in the foregoing method 200, and specifically, as shown in fig. 11, the apparatus 300 includes: a communication unit 310 and a processing unit 320.
A communication unit 310, configured to receive a first downlink message sent by a network device;
a processing unit 320, configured to determine a first uplink transmission resource for transmitting first uplink information, where the first uplink transmission resource is one of at least one uplink transmission resource included in a first time window, where the first time window includes at least one uplink transmission resource, and each uplink transmission resource in the at least one uplink transmission resource is used for transmitting uplink information.
The communication unit 310 is further configured to send, to the network device, first feedback information and joint information of the first uplink information on the first uplink transmission resource, where the first feedback information is in response to the first downlink message.
The communication device provided by the present application sends the time-frequency configuration of the first time window to the communication device, where the first time window includes a plurality of uplink transmission resources configured for other uplink information by the network device. The communications apparatus can transmit first information on a first uplink resource of a plurality of uplink transmission resources included in a first time window. That is, the first feedback information and the joint information of the first uplink information preconfigured by the first uplink transmission resource are sent on the first uplink transmission resource. The feedback opportunity of the first feedback information on the unlicensed spectrum can be increased to a great extent, the occurrence of the situation that the communication device does not send the feedback information by resources is reduced, and the communication problem caused by the fact that the feedback information cannot be transmitted between the network equipment and the communication device is avoided.
Optionally, the communication unit 310 may include a receiving unit (module) and a sending unit (module) for performing the steps of the method 200 and the terminal device in fig. 2, 6, 8 and 10 for receiving and sending information. Optionally, the communication device 300 may further include a storage unit 330 for storing instructions executed by the communication unit 310 and the processing unit 320. The communication unit 310, the processing unit 320 and the storage unit 330 are communicatively connected, the storage unit 330 stores instructions, the processing unit 320 is used for executing the instructions stored in the storage unit 330, and the communication unit 310 is used for performing specific signal transceiving under the driving of the processing unit 320.
The communication device 300 may be a communication device or a chip in a communication device. When the communication device is a communication device, the processing unit may be a processor and the communication unit may be a transceiver. The communication device may further comprise a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the communication equipment to execute the method. When the communication device is a chip within a communication apparatus, the processing unit may be a processor, and the communication unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored in a storage unit (e.g., a register, a cache, etc.) within the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) external to the chip in the communication device, so as to cause the communication apparatus to perform the operations performed by the terminal device in the method 200.
It can be clearly understood by those skilled in the art that, when the steps performed by the communication apparatus 300 and the corresponding advantages are described in the foregoing description of the terminal device in the method 200, for brevity, no further description is provided here.
It is to be understood that the communication unit 310 may be implemented by a transceiver and the processing unit 320 may be implemented by a processor. The storage unit may be implemented by a memory. As shown in fig. 12, the communication device 400 may include a processor 410, a memory 420, and a transceiver 430.
The communication apparatus 300 shown in fig. 11 or the communication apparatus 400 shown in fig. 12 can implement the aforementioned method 200 and the steps performed by the terminal device in fig. 2, 6, 8 and 10. Similar descriptions may refer to the description in the corresponding method previously described. To avoid repetition, further description is omitted here.
It should also be understood that the communication apparatus 300 shown in fig. 11 or the communication apparatus 400 shown in fig. 12 may be a terminal device.
Fig. 13 is a schematic block diagram of a communication apparatus 500 according to an embodiment of the present application, where the apparatus 500 may correspond to the network device described in the method 200, and may also be a chip or a component applied to the network device, and each module or unit in the apparatus 500 is respectively configured to execute each action or process performed by the network device in the method 500, and specifically, as shown in fig. 13, the apparatus 500 includes: a communication unit 510 and a processing unit 520.
A communication unit 510, configured to send a first downlink message to a terminal device;
the communication unit 510 is further configured to receive, on a first uplink transmission resource, joint information of first feedback information and first uplink information sent by the terminal device, where the first feedback information is in response to the first downlink message, the first uplink transmission resource is located within a first time window, the first uplink transmission resource is used for transmitting the first uplink information, the first time window includes at least one uplink transmission resource, and each uplink transmission resource is used for transmitting uplink information.
The communication device provided by the application only needs to detect the first feedback information at the uplink transmission resource within the time range of the first time window, does not need to detect the first feedback information at other uplink transmission resources, can reduce the range needing blind detection, and reduces resource consumption caused by configuring more resources for more potential sending opportunities by the communication device. The communication device does not need to wait for the first feedback information for a long time, so that the time for the communication device to wait for the first feedback information is shortened, and the delay of feeding back the first feedback information is reduced. In addition, the communication device does not need to additionally configure or schedule uplink transmission resources for the first feedback information, and the uplink transmission resources can be saved, so that the communication device can more efficiently realize the scheduling of the resources, ensure that other uplink information can be transmitted more reliably, and improve the utilization rate of the resources.
Optionally, the communication unit 510 may include a receiving unit (module) and a sending unit (module) for performing the steps of the method 200 and the network device in fig. 2, 6, 8 and 10 for receiving and sending information. Optionally, the communication device 500 may further include a storage unit 550, and the storage unit 550 is used for storing instructions executed by the communication unit 510 and the processing unit 520. The communication unit 510, the processing unit 520 and the storage unit 530 are communicatively connected, the storage unit 530 stores instructions, the processing unit 520 is used for executing the instructions stored in the storage unit 530, and the communication unit 510 is used for performing specific signal transceiving under the driving of the processing unit 520.
The communication device 500 may be a communication device or a chip in the communication device. When the communication device is a communication device, the processing unit may be a processor and the communication unit may be a transceiver. The communication device may further comprise a storage unit, which may be a memory. The storage unit is used for storing instructions, and the processing unit executes the instructions stored by the storage unit so as to enable the communication equipment to execute the method. When the communication device is a chip within a communication apparatus, the processing unit may be a processor, and the communication unit may be an input/output interface, a pin, a circuit, or the like; the processing unit executes instructions stored by a storage unit (e.g., a register, a cache, etc.) within the chip or a storage unit (e.g., a read-only memory, a random access memory, etc.) external to the chip within the communication device to cause the communication apparatus to perform the operations performed by the network device in the method 200.
It is clear to those skilled in the art that, when the steps performed by the communication apparatus 500 and the corresponding advantages can be referred to the related description of the network device in the method 200, the description is omitted here for brevity.
It is to be understood that the communication unit 510 may be implemented by a transceiver, the processing unit 520 may be implemented by a processor, and the storage unit 530 may be implemented by a memory. As shown in fig. 14, the communication device 600 may include a processor 610, a memory 620, and a transceiver 630.
The communication apparatus 500 shown in fig. 13 or the communication apparatus 600 shown in fig. 14 can implement the aforementioned method 200 and the steps performed by the network devices in fig. 2, 6, 8 and 10. Similar descriptions may refer to the description in the corresponding method previously described. To avoid repetition, further description is omitted here.
It should also be understood that the communication apparatus 500 shown in fig. 13 or the communication apparatus 600 shown in fig. 14 may be the network device described above.
The network device in the foregoing device embodiments completely corresponds to the network device or the terminal device in the terminal device and method embodiments, and the corresponding module or unit executes the corresponding steps, for example, the transceiver unit (transceiver) method executes the steps of transmitting and/or receiving in the method embodiments, and other steps except for transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The transmitting unit and the receiving unit can form a transceiving unit, and the transmitter and the receiver can form a transceiver to realize transceiving function together; the processor may be one or more.
It should be understood that the division of the units in the above apparatus is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity, and may be physically separated. And the units in the device can be realized in the form of software called by the processing element; or may be implemented entirely in hardware; part of the units can also be realized in the form of software called by a processing element, and part of the units can be realized in the form of hardware. For example, each unit may be a processing element separately set up, or may be implemented by being integrated into a chip of the apparatus, or may be stored in a memory in the form of a program, and a function of the unit may be called and executed by a processing element of the apparatus. The processing element, which may also be referred to herein as a processor, may be an integrated circuit having signal processing capabilities. In the implementation process, the steps of the method or the units above may be implemented by integrated logic circuits of hardware in a processor element or in a form called by software through the processor element.
In one example, the units in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more Digital Signal Processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), or a combination of at least two of these integrated circuit forms. As another example, when a unit in a device may be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of invoking programs. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).
Fig. 15 shows a schematic structural diagram of a terminal device according to an embodiment of the present application. It may be the terminal device in the above embodiment, for implementing the operation of the terminal device in the above embodiment. As shown in fig. 15, the terminal device includes: antenna 710, radio frequency device 720, signal processing portion 730. The antenna 710 is connected to a radio frequency device 720. In the downlink direction, the rf device 720 receives information transmitted by the network device through the antenna 710, and transmits the information transmitted by the network device to the signal processing portion 730 for processing. In the uplink direction, the signal processing portion 730 processes the information of the terminal device and sends the information to the radio frequency device 720, and the radio frequency device 720 processes the information of the terminal device and sends the information to the network device through the antenna 710.
The signal processing portion 730 may include a modem subsystem for implementing processing of various communication protocol layers of data; the system also comprises a central processing subsystem used for realizing the processing of a terminal operating system and an application layer; in addition, other subsystems, such as a multimedia subsystem for controlling a camera, a screen display, etc. of the terminal device, a peripheral subsystem for connecting with other devices, etc. may be included. The modem subsystem may be a separate chip. Alternatively, the above means for the terminal may be located at the modem subsystem.
The modem subsystem may include one or more processing elements 731, for example, including a master CPU and other integrated circuits. The modem subsystem may also include a storage element 732 and an interface circuit 733. The storage element 732 is used to store data and programs, but programs for executing the methods performed by the terminal device in the above methods may not be stored in the storage element 732, but may be stored in a memory outside the modem subsystem. The interface circuit 733 is used to communicate with other subsystems. The above apparatus for a terminal device may be located in a modem subsystem, which may be implemented by a chip comprising at least one processing element for performing the steps of any of the methods performed by the above terminal device and interface circuitry for communicating with other apparatus. In one implementation, the unit for the terminal device to implement each step in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the terminal device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the terminal in the above method embodiment. The memory elements may be memory elements with the processing elements on the same chip, i.e. on-chip memory elements.
Fig. 16 is a schematic structural diagram of a network device according to an embodiment of the present application. For implementing the operation of the network device in the above embodiments. As shown in fig. 16, the network device includes: antenna 801, radio frequency device 802, baseband device 803. The antenna 801 is connected to a radio frequency device 802. In the uplink direction, the rf apparatus 802 receives information transmitted by the terminal through the antenna 801, and transmits the information transmitted by the terminal device to the baseband apparatus 803 for processing. In the downlink direction, the baseband device 803 processes the information of the terminal and sends the information to the radio frequency device 802, and the radio frequency device 802 processes the information of the terminal device and sends the information to the terminal through the antenna 801.
The baseband device 803 may include one or more processing elements 8031, including, for example, a host CPU and other integrated circuits. In addition, the baseband device 803 may further include a storage element 8032 and an interface 8033, the storage element 8032 being used to store programs and data; the interface 8033 is used for exchanging information with the radio frequency device 802, and is, for example, a Common Public Radio Interface (CPRI). The above means for network devices may be located at the baseband means 803, for example, the above means for network devices may be a chip on the baseband means 803, the chip comprising at least one processing element and interface circuitry, wherein the processing element is configured to perform the steps of any of the methods performed by the above network devices, and the interface circuitry is configured to communicate with other devices. In one implementation, the unit of the network device for implementing the steps in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the network device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the network device in the above method embodiment. The memory elements may be memory elements on the same chip as the processing element, i.e. on-chip memory elements, or may be memory elements on a different chip than the processing element, i.e. off-chip memory elements.
The terminal device and the network device in the above-mentioned various apparatus embodiments may completely correspond to the terminal device or the network device in the method embodiment, and the corresponding module or unit performs the corresponding steps, for example, when the apparatus is implemented in the form of a chip, the receiving unit may be an interface circuit of the chip for receiving signals from other chips or apparatuses. The above unit for transmitting is an interface circuit of the apparatus for transmitting a signal to other apparatuses, for example, when the apparatus is implemented in the form of a chip, the transmitting unit is an interface circuit of the chip for transmitting a signal to other chips or apparatuses.
An embodiment of the present application further provides a communication system, including: the terminal device and the network device.
The embodiment of the present application further provides a computer-readable medium for storing a computer program code, where the computer program includes instructions for executing the method for transmitting feedback information in the embodiment of the present application in the method 200. The readable medium may be a read-only memory (ROM) or a Random Access Memory (RAM), which is not limited in this embodiment of the present application.
The present application also provides a computer program product comprising instructions that, when executed, cause the terminal device and the network device to perform operations of the terminal device and the network device corresponding to the above-described methods.
An embodiment of the present application further provides a system chip, where the system chip includes: a processing unit, which may be, for example, a processor, and a communication unit, which may be, for example, an input/output interface, a pin or a circuit, etc. The processing unit can execute computer instructions to enable a chip in the communication device to execute any one of the methods for transmitting feedback information provided by the embodiments of the present application.
Optionally, the computer instructions are stored in a storage unit.
Alternatively, the storage unit is a storage unit in the chip, such as a register, a cache, and the like, and the storage unit may also be a storage unit located outside the chip in the terminal, such as a ROM or other types of static storage devices that can store static information and instructions, a RAM, and the like. The processor mentioned in any of the above may be a CPU, a microprocessor, an ASIC, or one or more integrated circuits for controlling the execution of programs of the method for transmitting feedback information. The processing unit and the storage unit may be decoupled, and are respectively disposed on different physical devices, and are connected in a wired or wireless manner to implement respective functions of the processing unit and the storage unit, so as to support the system chip to implement various functions in the foregoing embodiments. Alternatively, the processing unit and the memory may be coupled to the same device.
It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a ROM, a Programmable Read Only Memory (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be RAM, which acts as external cache memory. There are many different types of RAM, such as Static Random Access Memory (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), synclink DRAM (SLDRAM), and direct memory bus RAM.
The terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The terms "upstream" and "downstream" appearing in the present application are used to describe the direction of data/information transmission in a specific scenario, for example, the "upstream" direction generally refers to the direction of data/information transmission from the terminal to the network side, or the direction of transmission from the distributed unit to the centralized unit, and the "downstream" direction generally refers to the direction of data/information transmission from the network side to the terminal, or the direction of transmission from the centralized unit to the distributed unit.
Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/procedures/concepts may be named in the present application, it is to be understood that these specific names do not constitute limitations on related objects, and the named names may vary according to circumstances, contexts, or usage habits, and the understanding of the technical meaning of the technical terms in the present application should be mainly determined by the functions and technical effects embodied/performed in the technical solutions.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (30)

1. A method for feedback information transmission, comprising:
the terminal equipment receives a first downlink message sent by the network equipment;
the terminal equipment determines a first uplink transmission resource for transmitting first uplink information, wherein the first uplink transmission resource is one of at least one uplink transmission resource included in a first time window;
and the terminal equipment sends first feedback information and the joint information of the first uplink information to the network equipment on the first uplink transmission resource, wherein the first feedback information responds to the first downlink message.
2. The method of claim 1, further comprising:
and the terminal equipment receives first configuration information sent by the network equipment, wherein the first configuration information comprises the information of the first time window.
3. The method according to claim 1 or 2, wherein in case of including multiple uplink transmission resources within the first time window,
the first uplink transmission resource is a first uplink transmission resource in the first time window after the terminal device can use a channel, and the uplink transmission resource in the first time window is on the channel; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with a lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located in the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority in the plurality of uplink information transmitted by the plurality of uplink transmission resources is located in the first time window.
4. The method according to any one of claims 1 to 3, further comprising:
the terminal equipment receives a second downlink message sent by the network equipment;
the terminal equipment determines third feedback information according to the first feedback information and the second feedback information, wherein the second feedback information responds to the second downlink message;
the sending, by the terminal device, the joint information of the first feedback information and the first uplink information to the network device on the first uplink transmission resource includes:
and the terminal equipment sends the joint information of the third feedback information and the first uplink information to the network equipment on the first uplink transmission resource.
5. The method of claim 4, wherein the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information;
or, the third feedback information is feedback information corresponding to a time window with less uplink transmission resources in the first time window and the second time window, where the second time window corresponds to the second feedback information, and the second time window includes at least one uplink transmission resource.
6. The method according to any of claims 1 to 5, wherein the first time window and/or the second time window comprises uplink transmission resources of:
at least one of an uplink transmission resource for transmitting Channel State Information (CSI), an uplink transmission resource for transmitting a Physical Uplink Shared Channel (PUSCH), and an uplink transmission resource for transmitting hybrid automatic repeat Acknowledgement (ACK) or Negative Acknowledgement (NACK) information.
7. The method according to any one of claims 1 to 6, further comprising:
and the terminal equipment sends indication information to the network equipment, wherein the indication information is used for indicating that the terminal equipment sends the joint information on the first uplink transmission resource.
8. A method for feedback information transmission, comprising:
the network equipment sends a first downlink message to the terminal equipment;
the network device receives, on a first uplink transmission resource, joint information of first feedback information and first uplink information sent by the terminal device, where the first feedback information is in response to the first downlink message, the first uplink transmission resource is located in a first time window, the first uplink transmission resource is used for transmitting the first uplink information, and the first time window includes at least one uplink transmission resource.
9. The method of claim 8, further comprising:
and the network equipment sends first configuration information to the terminal equipment, wherein the first configuration information comprises the information of the first time window.
10. The method according to claim 8 or 9, wherein, when there are multiple uplink transmission resources, the first uplink transmission resource is a first uplink transmission resource after the terminal device can use a channel in the first time window, and the uplink transmission resource in the first time window is on the channel; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with a lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located in the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority is located in the plurality of uplink information transmitted by the plurality of uplink transmission resources within the first time window.
11. The method according to any one of claims 8 to 10, further comprising:
the network equipment sends a second downlink message to the terminal equipment;
the network device receives, on a first uplink transmission resource, joint information of first feedback information and first uplink information sent by the terminal device, and the joint information includes:
and the network equipment receives the joint information of third feedback information and the first uplink information sent by the terminal equipment on the first uplink transmission resource, wherein the third feedback information is determined according to the first feedback information and the second feedback information, and the second feedback information responds to the second downlink information.
12. The method of claim 11,
the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information;
or, the third feedback information is feedback information corresponding to a time window with less uplink transmission resources in the first time window and the second time window, where the second time window corresponds to the second feedback information, and the second time window includes at least one uplink transmission resource.
13. The method according to any one of claims 8 to 12,
the uplink transmission resources included in the first time window and/or the second time window are: at least one of an uplink transmission resource for transmitting Channel State Information (CSI), an uplink transmission resource for transmitting a Physical Uplink Shared Channel (PUSCH), and an uplink transmission resource for transmitting hybrid automatic repeat Acknowledgement (ACK) or Negative Acknowledgement (NACK) information.
14. The method according to any one of claims 8 to 13, further comprising:
and the network equipment receives indication information sent by the terminal equipment, wherein the indication information is used for indicating the terminal equipment to receive the joint information on the first uplink transmission resource.
15. A communications apparatus, comprising:
the communication unit is used for receiving a first downlink message sent by the network equipment;
a processing unit, configured to determine a first uplink transmission resource for transmitting first uplink information, where the first uplink transmission resource is one of at least one uplink transmission resource included in a first time window;
the communication unit is further configured to send, to the network device, first feedback information and joint information of the first uplink information on the first uplink transmission resource, where the first feedback information is in response to the first downlink message.
16. The apparatus of claim 15, wherein the communication unit is further configured to:
and receiving first configuration information sent by the network equipment, wherein the first configuration information comprises information of the first time window.
17. The apparatus according to claim 15 or 16, wherein in case that there are multiple uplink transmission resources, the first uplink transmission resource is a first uplink transmission resource after the apparatus can use a channel in the first time window, and the uplink transmission resource in the first time window is on the channel; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with a lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located in the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority in the plurality of uplink information transmitted by the plurality of uplink transmission resources is located in the first time window.
18. The apparatus of any one of claims 15 to 17,
the communication unit is further configured to: receiving a second downlink message sent by the network equipment;
the processing unit is further to: determining third feedback information according to the first feedback information and the second feedback information, wherein the second feedback information responds to the second downlink message;
the communication unit is specifically configured to: and sending the joint information of the third feedback information and the first uplink information to the network equipment on the first uplink transmission resource.
19. The apparatus of claim 18, wherein the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information;
or the third feedback information is feedback information corresponding to a time window with less uplink transmission resources in the first time window and the second time window, where the second time window corresponds to the second feedback information, and the second time window includes at least one uplink transmission resource.
20. The apparatus according to any of claims 15 to 19, wherein the first time window and/or the second time window comprises uplink transmission resources of: at least one of an uplink transmission resource for transmitting Channel State Information (CSI), an uplink transmission resource for transmitting a Physical Uplink Shared Channel (PUSCH), and an uplink transmission resource for transmitting hybrid automatic repeat Acknowledgement (ACK) or Negative Acknowledgement (NACK) information.
21. The apparatus of any one of claims 15 to 20,
the communication unit is further configured to: and sending indication information to the network equipment, wherein the indication information is used for indicating the device to send the joint information on the first uplink transmission resource.
22. A communications apparatus, comprising:
a communication unit, configured to send a first downlink message to a terminal device;
the communication unit is further configured to receive, on a first uplink transmission resource, joint information of first feedback information and first uplink information sent by the terminal device, where the first feedback information is in response to the first downlink message, the first uplink transmission resource is located in a first time window, the first uplink transmission resource is used to transmit the first uplink information, and the first time window includes at least one uplink transmission resource.
23. The apparatus of claim 22,
the communication unit is further configured to send first configuration information to the terminal device, where the first configuration information includes information of the first time window.
24. The apparatus according to claim 22 or 23, wherein in case that there are multiple uplink transmission resources, the first uplink transmission resource is a first uplink transmission resource after the terminal device can use a channel in the first time window, and the uplink transmission resource in the first time window is on the channel; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with a lowest code rate in the uplink information transmitted by the plurality of uplink transmission resources is located in the first time window, wherein each uplink transmission resource in the plurality of uplink transmission resources is used for transmitting the uplink information; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource occupying the most resource units in the plurality of uplink transmission resources within the first time window; alternatively, the first and second electrodes may be,
the first uplink transmission resource is an uplink transmission resource where uplink information with the highest priority or the lowest priority is located in the plurality of uplink information transmitted by the plurality of uplink transmission resources within the first time window.
25. The apparatus of any one of claims 22 to 24,
the communication unit is further configured to: sending a second downlink message to the terminal equipment;
and receiving, on the first uplink transmission resource, combination information of third feedback information and the first uplink information sent by the terminal device, where the third feedback information is determined according to the first feedback information and second feedback information, and the second feedback information responds to the second downlink message.
26. The apparatus of claim 25,
the third feedback information is feedback information with an earlier or later time domain position in the first feedback information and the second feedback information;
or, the third feedback information is feedback information corresponding to a time window with less uplink transmission resources in the first time window and the second time window, where the second time window corresponds to the second feedback information, and the second time window includes at least one uplink transmission resource.
27. The apparatus of any one of claims 22 to 26,
the uplink transmission resources included in the first time window and/or the second time window are: at least one of an uplink transmission resource for transmitting Channel State Information (CSI), an uplink transmission resource for transmitting a Physical Uplink Shared Channel (PUSCH), and an uplink transmission resource for transmitting hybrid automatic repeat Acknowledgement (ACK) or Negative Acknowledgement (NACK) information.
28. The apparatus of any one of claims 22 to 27,
the communication unit is further configured to: and receiving indication information sent by the terminal equipment, wherein the indication information is used for indicating the terminal equipment to receive the joint information on the first uplink transmission resource.
29. A storage medium, comprising a program which, when executed by a processor, performs the method of any one of claims 1 to 14.
30. A chip system, comprising:
a memory to store instructions;
a processor configured to retrieve and execute the instructions from the memory, so that a communication device on which the system-on-chip is installed performs the method according to any one of claims 1 to 14.
CN201811046330.9A 2018-09-07 2018-09-07 Method and communication device for transmitting feedback information Pending CN110891311A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201811046330.9A CN110891311A (en) 2018-09-07 2018-09-07 Method and communication device for transmitting feedback information
PCT/CN2019/104418 WO2020048489A1 (en) 2018-09-07 2019-09-04 Feedback information transmission method and communication apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811046330.9A CN110891311A (en) 2018-09-07 2018-09-07 Method and communication device for transmitting feedback information

Publications (1)

Publication Number Publication Date
CN110891311A true CN110891311A (en) 2020-03-17

Family

ID=69721478

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811046330.9A Pending CN110891311A (en) 2018-09-07 2018-09-07 Method and communication device for transmitting feedback information

Country Status (2)

Country Link
CN (1) CN110891311A (en)
WO (1) WO2020048489A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080013A (en) * 2020-08-14 2022-02-22 华为技术有限公司 Information transmission method and communication device
WO2023125663A1 (en) * 2021-12-30 2023-07-06 展讯通信(上海)有限公司 Communication method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116097597A (en) * 2020-08-07 2023-05-09 华为技术有限公司 Information transmission method and communication device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012077480A1 (en) * 2010-12-07 2012-06-14 Sharp Kabushiki Kaisha Prioritizing multiple channel state information (csi) reporting with carrier aggregation
CN106559187A (en) * 2015-09-25 2017-04-05 北京三星通信技术研究有限公司 The feedback and method of reseptance of HARQ-ACK information and equipment
CN107182126A (en) * 2016-03-09 2017-09-19 中兴通讯股份有限公司 The transmission method and device of uplink feedback information
CN107332646A (en) * 2016-04-29 2017-11-07 中兴通讯股份有限公司 HARQ-ACK sending method and device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012077480A1 (en) * 2010-12-07 2012-06-14 Sharp Kabushiki Kaisha Prioritizing multiple channel state information (csi) reporting with carrier aggregation
CN106559187A (en) * 2015-09-25 2017-04-05 北京三星通信技术研究有限公司 The feedback and method of reseptance of HARQ-ACK information and equipment
CN107182126A (en) * 2016-03-09 2017-09-19 中兴通讯股份有限公司 The transmission method and device of uplink feedback information
CN107332646A (en) * 2016-04-29 2017-11-07 中兴通讯股份有限公司 HARQ-ACK sending method and device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
SAMSUNG: "HARQ-ACK Feedback for Numerology Multiplexing", 《3GPP TSG RAN WG1 #89 R1-1708027》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114080013A (en) * 2020-08-14 2022-02-22 华为技术有限公司 Information transmission method and communication device
CN114080013B (en) * 2020-08-14 2024-03-19 华为技术有限公司 Information transmission method and communication device
WO2023125663A1 (en) * 2021-12-30 2023-07-06 展讯通信(上海)有限公司 Communication method and apparatus

Also Published As

Publication number Publication date
WO2020048489A1 (en) 2020-03-12

Similar Documents

Publication Publication Date Title
CN113518470B (en) Method and device for determining channel access scheme, terminal equipment and network equipment
US11197320B2 (en) Uplink transmission resource scheduling method and device, and uplink transmission method and device
CN109644466B (en) Uplink signal sending method and terminal equipment
WO2018228529A1 (en) Control information transmission method and apparatus
EP3439390B1 (en) Information feedback method, base station, terminal, and storage medium
CN111585730B (en) Transmission method and communication device
TW202019201A (en) Method of handling communication in unlicensed spectrum and related communication device
CN109429275B (en) Communication method and device
CN111108800B (en) Communication method and device
WO2021007759A1 (en) Control channel transmission method and apparatus, and storage medium
US20190327727A1 (en) Uplink transmission method, terminal, and network side device
CN111770572A (en) Method and communication device for determining feedback information
CN111356236B (en) Uplink transmission method, uplink transmission device and terminal equipment
CN110971355B (en) Configuration method of uplink dynamic-authorization-free transmission and communication device
WO2018209803A1 (en) Method and apparatus for information transmission
CN113840390A (en) Random access method, terminal equipment and network equipment
WO2020048489A1 (en) Feedback information transmission method and communication apparatus
US20220116917A1 (en) Resource sharing method and apparatus, and terminal device
WO2020164156A1 (en) Method for determining transmission bandwidth, device and storage medium
US20220132478A1 (en) Wireless communication method, network device and terminal device
EP3820209B1 (en) Methods and apparatuses for determining and allocating resources
US11991697B2 (en) Method and apparatus for subband based channel access on unlicensed spectrum
CN113711518A (en) Method and device for feeding back HARQ information
CN115549866A (en) Method and communication device for transmitting side link feedback information
EP3684130B1 (en) Information transmission method and device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20200317