CN111031580B - Method and apparatus for transmitting feedback information - Google Patents

Method and apparatus for transmitting feedback information Download PDF

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CN111031580B
CN111031580B CN201811178116.9A CN201811178116A CN111031580B CN 111031580 B CN111031580 B CN 111031580B CN 201811178116 A CN201811178116 A CN 201811178116A CN 111031580 B CN111031580 B CN 111031580B
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target
feedback information
pusch
scheduling information
information
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CN111031580A (en
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鲁智
姜蕾
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows

Abstract

The embodiment of the invention discloses a method and equipment for transmitting feedback information, wherein the method is applied to terminal equipment in a new air interface unauthorized NR-U spectrum communication scene and comprises the following steps: receiving scheduling information, wherein the scheduling information is used for a terminal device to determine whether target feedback information is allowed to be carried in a target Physical Uplink Shared Channel (PUSCH), and the target feedback information is timed before the transmission starting time of the target PUSCH; and under the condition that the target PUSCH is determined to be allowed to bear the target feedback information according to the scheduling information, determining reserved resources used for transmitting the target feedback information in the resources of the target PUSCH. The method of the embodiment of the invention can avoid the resource waste caused by the direct retransmission of the PDSCH related to the target feedback information by the network equipment.

Description

Method and apparatus for transmitting feedback information
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting feedback information.
Background
In a mobile communication system, generally, after receiving a Physical Downlink Shared Channel (PDSCH) transmitted by a network device, a terminal device feeds back acknowledgement/Negative acknowledgement (ACK/NACK) information to the network device to inform the network device whether the reception is correct, and assists the network device in determining whether retransmission is required.
The time relationship between the Physical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH) carrying the ACK/NACK information and the PDSCH is typically scheduled or configured by the network device. However, in a New Radio un-license (NR-U) communication scenario, channel sensing is required to be performed first when ACK/NACK is sent, and whether a channel is idle is determined. If the channel is busy, the terminal device will not be able to send an ACK/NACK and the network device will not be able to obtain an acknowledgement for the previous transmission. If the channel is idle, the terminal device can send uplink control information such as ACK/NACK, but the network device does not detect the uplink control information sent by the terminal device due to interference of hidden nodes or poor channel quality, and the network device also cannot obtain a response to previous transmission. When the network device does not acquire a response to the previous transmission, the network device retransmits all the PDSCH transmitted previously, which results in resource waste.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method and an apparatus for transmitting feedback information, so as to avoid resource waste.
In a first aspect, a method for transmitting feedback information is provided, where the method is applied to a terminal device in a new air interface unlicensed NR-U spectrum communication scenario, and the method includes: receiving scheduling information, wherein the scheduling information is used for the terminal equipment to determine whether target feedback information is allowed to be carried in a target Physical Uplink Shared Channel (PUSCH), and the target feedback information is timed before the transmission starting time of the target PUSCH; and under the condition that the target PUSCH is determined to be allowed to bear the target feedback information according to the scheduling information, determining reserved resources used for transmitting the target feedback information in the resources of the target PUSCH.
In a second aspect, a method for transmitting feedback information is provided, where the method is applied to a network device in a new air interface unlicensed NR-U spectrum communication scenario, and the method includes: and sending scheduling information, wherein the scheduling information is used for a terminal device to determine whether target feedback information is allowed to be carried in a target uplink shared channel (PUSCH), and determining reserved resources used for transmitting the target feedback information in resources of the target PUSCH under the condition that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information, and the target feedback information is timed before the transmission starting time of the target PUSCH.
In a third aspect, a terminal device is provided, where the terminal device is applied in a new air interface unlicensed NR-U spectrum communication scenario, and the terminal device includes: a transceiver module, configured to receive scheduling information, where the scheduling information is used by the terminal device to determine whether a target physical uplink shared channel PUSCH is allowed to carry target feedback information, and the target feedback information is timed before a transmission start time of the target PUSCH; and the processing module is used for determining reserved resources used for transmitting the target feedback information in the resources of the target PUSCH under the condition that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information.
In a fourth aspect, a network device is provided, where the network device is applied in a new air interface unlicensed NR-U spectrum communication scenario, and the network device includes: and the transceiver module is used for sending scheduling information, wherein the scheduling information is used for determining whether target feedback information is allowed to be carried in a target uplink shared channel (PUSCH) by a terminal device, and determining reserved resources used for transmitting the target feedback information in resources of the target PUSCH under the condition that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information, and the target feedback information is timed before the transmission starting time of the target PUSCH.
In a fifth aspect, a terminal device is provided, where the terminal device is applied in a new air interface unlicensed NR-U spectrum communication scenario, and the terminal device includes: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method for transmitting feedback information as set forth in the first aspect.
In a sixth aspect, a network device is provided, where the network device is applied in a new air interface unlicensed NR-U spectrum communication scenario, and includes: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method for transmitting feedback information according to the second aspect.
In a seventh aspect, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for transmitting feedback information according to the first aspect.
In an eighth aspect, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method for transmitting feedback information according to the second aspect.
In the embodiment of the invention, the terminal equipment receives scheduling information used for determining whether the target PUSCH is allowed to carry the target feedback information, and determines reserved resources used for transmitting the target feedback information in resources of the target PUSCH under the condition that the target PUSCH is determined to be allowed to carry the target feedback information. And then the terminal equipment can bear the target feedback information which is timed before the transmission starting time of the target PUSCH in the target PUSCH, so that the resource waste caused by the fact that the network equipment directly retransmits the PDSCH related to the target feedback information can be avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic flow diagram of a method for transmitting feedback information according to one embodiment of the present invention.
Fig. 2 is a schematic diagram of a correspondence relationship between PUSCH and PUCCH according to an embodiment of the present invention.
Fig. 3 is a diagram illustrating a method for transmitting feedback information according to an embodiment of the present invention.
Fig. 4 is a diagram illustrating a method for transmitting feedback information according to another embodiment of the present invention.
Fig. 5 is a diagram illustrating a method for transmitting feedback information according to still another embodiment of the present invention.
Fig. 6 is a schematic flow chart of a method for transmitting feedback information according to another embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present invention.
Fig. 10 is a schematic structural diagram of a network device according to another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical scheme of the invention can be applied to various communication systems, such as: a Long Term Evolution (LTE)/enhanced Long Term Evolution (LTE-a) system, a New Radio (NR) system, and the like.
In the embodiment of the present invention, a User Equipment (UE), which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile User Equipment (ms), or the like, may communicate with one or more core networks via a Radio Access Network (RAN), and the UE may be a Mobile Terminal, such as a Mobile phone (or referred to as a "cellular" phone) and a computer having the Mobile Terminal, such as a portable, pocket, handheld, computer-embedded or vehicle-mounted Mobile device, and they exchange languages and/or data with the RAN.
In the embodiment of the present invention, a network device is a device deployed in a radio access network device and configured to provide a wireless communication function for a terminal device, where the network device may be, for example, a base station, and the base station may be an evolved NodeB (eNB or e-NodeB) and a 5G base station (gNB) in LTE.
It should be noted that, in the embodiment of the present invention, since the NR supports flexible Uplink and Downlink configuration, the number of (Physical Downlink Shared Channel, PDSCH) associated with one Physical Uplink Control Channel (PUCCH) or Physical Uplink Shared Channel (PUSCH) transmission may be one or multiple, and the number of PUCCH or PDSCH associated with PUSCH transmitted at different time may be different.
It should be further noted that the feedback information in the embodiment of the present invention may be Acknowledgement/negative Acknowledgement (ACK/NACK) information used to inform the network device whether a Physical Downlink Shared Channel (PDSCH) is correctly received.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Fig. 1 illustrates a method for transmitting feedback information according to one embodiment of the present application. The method shown in fig. 1 is applied to a terminal device in a New Radio un-license (NR-U) spectrum communication scenario. As shown in fig. 1, the method comprises:
s110, receiving scheduling information, wherein the scheduling information is used for the terminal equipment to determine whether target feedback information is allowed to be carried in a target Physical Uplink Shared Channel (PUSCH), and the target feedback information is timed before the transmission starting time of the target PUSCH.
Note that, the target feedback information Timing (Timing) may be prior to the transmission start time of the target PUSCH, and it may be understood that the target feedback information needs to be transmitted prior to the transmission start time of the target PUSCH.
In S110, the target feedback information is feedback on the PDSCH of the physical downlink shared channel received in at least one channel occupancy time COT before the transmission time of the target PUSCH.
In S110, the target feedback information includes feedback information that is not carried in PUCCH or PUSCH for transmission due to a Listen Before Talk (LBT) failure of the terminal device. That is, although the target feedback information timing is before the transmission start time of the target PUSCH, it may fail to be transmitted before the transmission start time due to the terminal apparatus LBT failure.
In S110, the target feedback information may further include feedback information that the terminal device LBT succeeds and has been sent to the network device through the PUCCH or PUSCH. It can be understood that the transmission end time of the PUCCH or PUSCH herein is earlier than the transmission start time of the target PUSCH. The target feedback information in S110 may be feedback information that needs to be transmitted for the first time before the transmission time of the target PUSCH starts, or may be feedback information that needs to be repeatedly transmitted before the transmission time of the target PUSCH starts, which is not limited in the embodiment of the present invention.
Further, the network device may configure a correspondence of the target PUSCH and the PUCCH, where the correspondence may be: the target PUSCH carries ACK/NACK carried on the latest one or the latest multiple PUCCHs. For example, as shown in fig. 2, if the network device configures the target PUSCH to carry HARQ-ACK carried on the last PUCCH, PUSCH1-3 may carry HARQ-ACK information on PUCCH1 and PUSCH4-6 may carry HARQ-ACK information on PUCCH 2. The terminal equipment can send the ACK/NACK information which is not fed back before on a plurality of candidate PUSCHs, thereby being beneficial to avoiding or saving ACK/NACK feedback time delay, ensuring that the network equipment and the terminal equipment have the same understanding on the communication process and improving the effectiveness of data transmission.
And S120, determining reserved resources for transmitting the target feedback information in the resources of the target PUSCH under the condition that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information.
Optionally, in some embodiments, the scheduling information is used to indicate whether or not the target PUSCH is allowed to carry the target feedback information. Or, the scheduling information is used for indicating whether the target PUSCH is subjected to rate matching, if the target PUSCH is indicated to allow the rate matching, the target PUSCH is indicated to allow the target feedback information to be carried, otherwise, the target PUSCH is indicated to disallow the target feedback information to be carried.
For example, the network device and the terminal device may implement the following convention: and if the indication domain is not added in the scheduling authorization for scheduling the target PUSCH transmission, the target PUSCH is not allowed to carry the target feedback information, otherwise, the target PUSCH is allowed to carry the target feedback information. And the terminal equipment determines whether the target PUSCH is allowed to carry the target feedback information or not according to whether the indication domain is added in the scheduling authorization for scheduling the target PUSCH transmission.
Or the network device may add an indication field in the scheduling grant for scheduling the target PUSCH transmission, and dynamically indicate whether the target PUSCH is allowed to carry the target feedback information. The indication field may be 1bit, and when the value of the indication field is "1", the indication field indicates that the target PUSCH allows carrying the target feedback information, and when the value of the indication field is "0", the indication field indicates that the target PUSCH does not allow carrying the target feedback information.
Further, when the scheduling information indicates that the target PUSCH is allowed to carry the target feedback information, the scheduling information further includes indication information for indicating the number of bits for carrying the target feedback information. Or it can be understood that the scheduling information further includes indication information for indicating the number of bits for rate matching of the target PUSCH. For example, an indication field with a length of X bits (specifically, depending on the number of bits indicated by the indication information) may be added to the scheduling grant to carry the indication information. The bit number indicated by the indication information for carrying the target feedback information is one of a plurality of bit values, and the plurality of bit values are agreed by a protocol or configured by the network device through high-layer signaling.
For example, assume that the bit number of the target feedback information is m, and the indication information indicates that the bit number of the target PUSCH for rate matching is n. If m is smaller than n, the terminal device will fill in dummy bits (e.g., 0) when transmitting the target feedback information, making m equal to n. If m is larger than n, the terminal device may intercept the target feedback information according to a certain order or bind (Bundle) the target feedback information according to a certain rule. For example, when the terminal device is configured to feed back ACK/NACK information that is not fed back recently due to LBT failure before the terminal device is configured to feed back, and the bit number of the ACK/NACK information is greater than the bit number indicated by the indication information for performing rate matching, the terminal device may feed back the first n bits of the ACK/NACK information in a time sequence, and if there is a Downlink Assignment Index (DAI) value in the scheduling grant of the PDSCH, the terminal device may feed back ACK/NACK of the first n bits in a sequence from small to large according to the DAI. Further, the network device may configure the terminal device to feed back, on the target PUSCH, all ACKs/NACKs corresponding to Hybrid Automatic Repeat Request (HARQ) process Identifiers (IDs), that is, a value of n indicated by the indication information is a total number of HARQ processes.
Optionally, in some embodiments, when determining a reserved Resource used for transmitting the target feedback Information in the resources of the target PUSCH, the terminal device calculates a Resource Element (RE) occupied by the target feedback Information according to the total bit number of the target feedback Information, where the calculated RE is only for the target feedback Information and does not include feedback Information corresponding to the target PUSCH, and Uplink Control Information (UCI) corresponding to the target PUSCH (does not include the target feedback Information) performs Resource mapping according to an existing mechanism after planning off the RE occupied by the target feedback Information.
When determining reserved resources for transmitting the target feedback information, the terminal device may first calculate the number of symbols of the target feedback information after each layer of adjustment coding according to formula (1), and then determine the reserved resources that the target feedback information needs to occupy according to the number of symbols of each layer of adjustment coding. Wherein, formula (1) is:
Figure BDA0001824311200000081
wherein o isACKIs the number of bits of the ACK information (which may be the number of bits of the target feedback information), if oACK≥360，LACKIf o is equal to 11ACK＜360，LACKThe number of Cyclic Redundancy Check (CRC) bits for the ACK message determined according to clause 6.3.1.2.1,
Figure BDA0001824311200000082
CUL-SCHis the number of coding blocks of the uplink shared channel (UL-SCH) at the time of target PUSCH transmission,
Figure BDA0001824311200000083
is the total number of OFDM symbols of the PUSCH,
Figure BDA0001824311200000084
is the number of resource particles that can be used for UCI transmission on OFDM symbol l，krIs the r-th code block size and alpha is the scaling factor of the network device configuration.
Optionally, in some embodiments, the terminal device may calculate REs that need to be reserved according to the total number of bits of the feedback information that needs to be fed back (including the number of bits of the feedback information (or UCI) corresponding to the target PUSCH and the number of bits of the target feedback information), and data is mapped to REs other than the reserved REs calculated according to the total number of bits of the feedback information that needs to be fed back for transmission. If other UCIs are required to perform resource multiplexing in the target PUSCH of the terminal device, the terminal device may perform resource multiplexing on the other UCIs and the feedback information that needs to be fed back. For example, as shown in fig. 3, the Demodulation Reference Signal (DMRS), the first Part (Part 1) of the Channel State Information (CSI), the second Part (Part 2) of the CSI, the ACK corresponding to the target PUSCH, and the previous ACK and data collectively multiplex the resources of the target PUSCH.
Likewise, the terminal device may calculate the RE that needs to be reserved according to equation (1) above, in which case oACKIs the sum of the bit number of the target feedback information (previously transmitted feedback information) and the bit number of the feedback information corresponding to the target PUSCH (currently required to be transmitted feedback information).
Further, in the case that the scheduling information further includes indication information for indicating a bit number carrying the target feedback information, in S120, determining reserved resources for transmitting the target feedback information in resources of the target PUSCH includes: and determining the reserved resources according to the bit number for bearing the target feedback information.
Optionally, in some embodiments, the scheduling information is used to indicate a rate matching pattern of the target PUSCH, the rate matching pattern corresponding to the reserved resources; correspondingly, in S120, determining reserved resources for transmitting the target feedback information in the resources of the target PUSCH includes: and determining the reserved resources according to the rate matching pattern.
In other words, the network device may indicate a rate matching Pattern (Pattern) of the target PUSCH, where there is a corresponding relationship between the rate matching Pattern and the reserved resource, and the terminal device may determine the reserved resource according to the rate matching Pattern of the target PUSCH and the corresponding relationship. And when the terminal equipment sends the target PUSCH, carrying out rate matching according to the indicated rate matching Pattern, and mapping the feedback information (or other UCI) corresponding to the target PUSCH to resources except reserved resources for transmission.
For example, as shown in fig. 4, the network device indicates that the rate matching pattern of the target PUSCH is RE transmission target feedback information through point padding, and the terminal device maps the target feedback information onto the RE point-padded in fig. 4, and maps DMRS and data that need to be resource multiplexed onto the RE without color padding and the vertical line padding, respectively.
The rate matching pattern (pattern) of the target PUSCH may be determined by the network device according to the bit number of the target feedback information, and there may be a corresponding relationship described in table 1 between the bit number of the feedback information and the rate matching pattern.
TABLE 1
Figure BDA0001824311200000091
Figure BDA0001824311200000101
In all the above embodiments, optionally, the terminal device succeeds LBT on the PUCCH resource indicated by the network device and sends ACK/NACK, and if the network device configures the terminal device to perform rate matching on the reserved REs in the PUSCH immediately after, the terminal device may transmit a certain Redundancy Version (RV) of data on the reserved REs until the reserved REs are occupied, and the RV Version may be configured by the network. Or, the terminal device transmits the ACK/NACK transmitted on the PUCCH on the reserved RE, thereby being capable of improving transmission reliability.
For example, as shown in fig. 5, the LBT of the terminal device is successful on the PUCCH resource and ACK/NACK is sent on the PUCCH resource, but the network device configures the terminal device to reserve REs on PUSCH1 for rate matching, not reserve REs on PUSCH2, and reserve REs on PUSCH3 for rate matching, then the terminal device may select one RV for transmitting data on PUSCH1 and PUSCH3 or transmit ACK/NACK transmitted on PUCCH.
Based on the above embodiments of the present invention, it can be understood that if the target PUSCH is allowed to carry the target feedback information, the network device provides the terminal with an additional feedback opportunity, and even if the terminal fails LBT before the transmission start time of the target PUSCH, the terminal may still have an opportunity to report the target feedback information. For example, if the network instructs the terminal to allow carrying the target feedback information in the target PUSCH, and the terminal device succeeds in LBT before the transmission start time of the target PUSCH, the terminal may not carry the target feedback information in the target PUSCH, or if the terminal device fails in LBT before the transmission start time of the target PUSCH (or the network does not receive the target feedback information of the terminal due to interference of hidden nodes or poor channel quality), the network device instructs the terminal to allow carrying the target feedback information in the target PUSCH, and the terminal may have an additional opportunity to feed back the target feedback information (i.e., longer than the timing length from the PDSCH to feedback ACK/NACK).
In the above embodiments of the present invention, if the terminal device transmits the target feedback information in the resource of the target PUSCH, it may be considered that the target feedback information is resource-multiplexed with the data or UCI originally to be transmitted in the target PUSCH.
The method for transmitting feedback information according to an embodiment of the present invention is described in detail above with reference to fig. 1 to 5. A method for transmitting feedback information according to another embodiment of the present invention will be described in detail with reference to fig. 6. It is to be understood that the interaction of the network device and the terminal device described from the network device side is the same as that described at the terminal device side in the method shown in fig. 1 to 5, and the related description is appropriately omitted to avoid redundancy. The method shown in fig. 6 is performed by a network device in a new air interface unlicensed NR-U spectrum communication scenario, and the method shown in fig. 6 includes:
s210, sending scheduling information, wherein the scheduling information is used for a terminal device to determine whether target feedback information is allowed to be carried in a target uplink shared channel (PUSCH), and determining reserved resources used for transmitting the target feedback information in resources of the target PUSCH under the condition that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information, wherein the target feedback information is timed before the transmission starting time of the target PUSCH.
Optionally, as an embodiment, the target feedback information is feedback of a PDSCH received in at least one channel occupancy time COT before the transmission time of the target PUSCH.
Optionally, as an embodiment, the target feedback information includes feedback information that is not carried in a physical uplink control channel, PUCCH, or a physical uplink shared channel, PUSCH, for transmission due to the failure of the terminal device to listen to LBT.
Optionally, as an embodiment, the scheduling information is used to indicate whether the target PUSCH is allowed to carry the target feedback information.
Optionally, as an embodiment, in a case that the scheduling information indicates that the target feedback information is allowed to be carried in the target PUSCH, the scheduling information further includes indication information for indicating a bit number for carrying the target feedback information.
Optionally, as an embodiment, the bit number for carrying the target feedback information is one of a plurality of bit values, and the plurality of bit numbers are agreed by a protocol or configured by a network device through a high-level signaling.
Optionally, as an embodiment, the scheduling information is used to indicate a rate matching pattern of the target PUSCH, where the rate matching pattern corresponds to the reserved resources.
Optionally, as an embodiment, the method shown in fig. 6 further includes: and determining the rate matching pattern of the target PUSCH according to the bit number of the target feedback information.
The method for transmitting feedback information according to an embodiment of the present invention is described in detail above with reference to fig. 1 to 6. A terminal device according to an embodiment of the present invention will be described in detail below with reference to fig. 7.
Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present invention. As shown in fig. 7, the terminal device 70 includes:
a transceiver module 71, configured to receive scheduling information, where the scheduling information is used for the terminal device to determine whether a target physical uplink shared channel PUSCH is allowed to carry target feedback information, and the target feedback information is timed before a transmission start time of the target PUSCH;
a processing module 72, configured to determine, when it is determined that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information, a reserved resource for transmitting the target feedback information in resources of the target PUSCH.
Optionally, as an embodiment, the target feedback information is feedback of a PDSCH received in at least one channel occupancy time COT before the transmission time of the target PUSCH.
Optionally, as an embodiment, the target feedback information includes feedback information that is not carried in a physical uplink control channel, PUCCH, or PUSCH, for transmission due to the terminal device listening to LBT failure.
Optionally, as an embodiment, the scheduling information is used to indicate whether the target PUSCH is allowed to carry the target feedback information.
Optionally, as an embodiment, in a case that the scheduling information indicates that the target feedback information is allowed to be carried in the target PUSCH, the scheduling information further includes indication information for indicating a number of bits for carrying the target feedback information;
wherein the processing module 72 is specifically configured to:
and determining the reserved resources according to the bit number for bearing the target feedback information.
Optionally, as an embodiment, the number of bits for carrying the target feedback information is one of a plurality of bit values, and the plurality of bit values are agreed by a protocol or configured by a network device through a high-layer signaling.
Optionally, as an embodiment, the scheduling information is used to indicate a rate matching pattern of the target PUSCH, where the rate matching pattern corresponds to the reserved resources;
wherein the processing module 72 is specifically configured to:
and determining the reserved resources according to the rate matching pattern.
The terminal device provided by the embodiment of the present invention can implement each process implemented by the terminal device in the method embodiments of fig. 1 to fig. 5, and is not described herein again to avoid repetition.
Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present invention. As shown in fig. 8, the network device 80 includes:
a transceiver module 81, configured to send scheduling information, where the scheduling information is used for a terminal device to determine whether target feedback information is allowed to be carried in a target uplink shared channel PUSCH, and determine a reserved resource used for transmitting the target feedback information in a resource of the target PUSCH under a condition that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information, where the target feedback information is periodically before a transmission start time of the target PUSCH.
Optionally, as an embodiment, the target feedback information is feedback of the terminal device on a PDSCH of a physical downlink shared channel received in at least one channel occupancy time COT before a transmission time of the target PUSCH.
Optionally, as an embodiment, the target feedback information includes feedback information that is not carried in a physical uplink control channel, PUCCH, or a physical uplink shared channel, PUSCH, for transmission due to the failure of the terminal device to listen to LBT.
Optionally, as an embodiment, the scheduling information is used to indicate whether the target PUSCH is allowed to carry the target feedback information.
Optionally, as an embodiment, in a case that the scheduling information indicates that the target feedback information is allowed to be carried in the target PUSCH, the scheduling information further includes indication information for indicating a bit number for carrying the target feedback information.
Optionally, as an embodiment, the bit number for carrying the target feedback information is one of a plurality of bit values, and the plurality of bit numbers are agreed by a protocol or configured by a network device through a high-level signaling.
Optionally, as an embodiment, the scheduling information is used to indicate a rate matching pattern of the target PUSCH, where the rate matching pattern corresponds to the reserved resources.
Optionally, as an embodiment, as shown in fig. 8, the network device 80 further includes:
and the processing module 82 is configured to determine a rate matching pattern of the target PUSCH according to the bit number of the target feedback information.
The terminal device provided in the embodiment of the present invention can implement each process implemented by the network device in the embodiment of the method in fig. 6, and is not described here again to avoid repetition.
Fig. 9 shows a schematic structural diagram of a terminal device according to another embodiment of the present invention, and as shown in fig. 9, the terminal device 900 includes: at least one processor 910, memory 920, at least one network interface 930, and a user interface 940. The various components in the terminal device 900 are coupled together by a bus system 950. It is understood that the bus system 950 is used to enable communications among the components. The bus system 950 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 950 in FIG. 9.
The user interface 940 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It will be appreciated that memory 920 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. The volatile Memory may be a Random Access Memory (RAM) which functions as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synclink DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 320 of the subject systems and methods is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 920 stores elements, executable modules or data structures, or a subset thereof, or an expanded set thereof as follows: an operating system 921 and application programs 922.
The operating system 921 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 922 includes various applications, such as a Media Player (Media Player), a Browser (Browser), and the like, for implementing various application services. A program implementing the method of an embodiment of the present invention may be included in the application 922.
In this embodiment of the present invention, the terminal device 900 further includes: a computer program stored in the memory 920 and capable of running on the processor 910, where the computer program, when executed by the processor 910, implements the processes of the methods described in fig. 1 to fig. 5, and can achieve the same technical effects, and therefore, in order to avoid repetition, the details are not repeated here.
The method disclosed in the above embodiments of the present invention may be applied to the processor 910, or implemented by the processor 910. The processor 910 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 910. The Processor 910 may be a general-purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 920, and the processor 910 reads the information in the memory 920 and performs the steps of the above method in combination with the hardware thereof. In particular, the computer-readable storage medium has stored thereon a computer program, which when executed by the processor 910 implements the steps of the method embodiments as described above in fig. 1 to 5.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Fig. 10 shows a schematic structural diagram of a network device according to another embodiment of the present invention. As shown in fig. 10, the network device 1000 includes a processor 1010, a transceiver 1020, a memory 1030, and a bus interface. Wherein:
in this embodiment of the present invention, the network device 1000 further includes: a computer program stored in the memory 1030 and capable of running on the processor 1010, where the computer program, when executed by the processor 1010, implements each process in the method shown in fig. 6, and can achieve the same technical effect, and is not described herein again to avoid repetition.
In fig. 10, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1010 and various circuits of memory represented by memory 1030 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1020 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium.
The processor 1010 is responsible for managing the bus architecture and general processing, and the memory 1030 may store data used by the processor 1010 in performing operations.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the method embodiments shown in fig. 1 to 6, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (18)

1. A method for transmitting feedback information is applied to a terminal device in a new air interface unauthorized NR-U spectrum communication scene, and is characterized by comprising the following steps:
receiving scheduling information, wherein the scheduling information is used for indicating whether a target PUSCH is allowed to perform rate matching or not, and under the condition that the scheduling information indicates that the target PUSCH is allowed to perform rate matching, the terminal determines that the target PUSCH is allowed to carry target feedback information according to the scheduling information, and the target feedback information is ahead of the transmission starting time of the target PUSCH at regular time;
under the condition that the target PUSCH is determined to be allowed to bear the target feedback information according to the scheduling information, determining reserved resources used for transmitting the target feedback information in resources of the target PUSCH; wherein the scheduling information comprises a rate matching pattern of the target PUSCH, the rate matching pattern corresponding to the reserved resources; the determining reserved resources for transmitting the target feedback information in the resources of the target PUSCH includes: and determining the reserved resources according to the rate matching pattern.
2. The method of claim 1, wherein the target feedback information is feedback on a Physical Downlink Shared Channel (PDSCH) received in at least one Channel Occupancy Time (COT) before a transmission time of the target PUSCH.
3. The method according to claim 1 or 2, wherein the target feedback information comprises feedback information that is not transmitted in a physical uplink control channel, PUCCH, or PUSCH, due to the terminal device listening for LBT failure.
4. The method according to claim 1 or 2, wherein the scheduling information is used to indicate whether the target feedback information is allowed to be carried in the target PUSCH.
5. The method according to claim 4, wherein in case that the scheduling information indicates that the target feedback information is allowed to be carried in the target PUSCH, the scheduling information further comprises indication information for indicating the number of bits for carrying the target feedback information;
wherein the determining reserved resources for transmitting the target feedback information in the resources of the target PUSCH comprises:
and determining the reserved resources according to the bit number for bearing the target feedback information.
6. The method of claim 5, wherein the number of bits for carrying the target feedback information is one of a plurality of bit values, and the plurality of bit values are configured by a network device through higher layer signaling or agreed by a protocol.
7. A method for transmitting feedback information, applied to a network device in a new air interface unlicensed NR-U spectrum communication scenario, includes:
sending scheduling information, wherein the scheduling information is used for indicating whether a target PUSCH is allowed to perform rate matching or not, under the condition that the scheduling information indicates that the target PUSCH is allowed to perform rate matching, the scheduling information indicates that the target PUSCH is allowed to carry target feedback information, and under the condition that the target PUSCH is determined to be allowed to carry the target feedback information according to the scheduling information, reserved resources used for transmitting the target feedback information in resources of the target PUSCH are determined, and the target feedback information is timed to be before the transmission starting time of the target PUSCH; wherein the scheduling information comprises a rate matching pattern of the target PUSCH, the rate matching pattern corresponding to the reserved resources.
8. The method of claim 7, wherein the target feedback information is feedback of a terminal device on a Physical Downlink Shared Channel (PDSCH) received in at least one Channel Occupancy Time (COT) before a transmission time of the target PUSCH.
9. The method according to claim 7 or 8, wherein the target feedback information comprises feedback information that is not transmitted in a physical uplink control channel, PUCCH, or physical uplink shared channel, PUSCH, due to a terminal device listening for LBT failure.
10. The method according to claim 7 or 8, wherein the scheduling information is used to indicate whether the target feedback information is allowed to be carried in the target PUSCH.
11. The method according to claim 10, wherein in case that the scheduling information indicates that the target feedback information is allowed to be carried in the target PUSCH, the scheduling information further comprises indication information for indicating a number of bits for carrying the target feedback information.
12. The method of claim 11, wherein the number of bits for carrying the target feedback information is one of a plurality of bit values, and the plurality of bit values are configured by a network device through higher layer signaling or by protocol convention.
13. The method of claim 7, further comprising:
and determining the rate matching pattern of the target PUSCH according to the bit number of the target feedback information.
14. A terminal device, which is applied in a new air interface unlicensed NR-U spectrum communication scenario, and is characterized in that the terminal device includes:
a transceiver module, configured to receive scheduling information, where the scheduling information is used to indicate whether a target PUSCH allows rate matching, and when the scheduling information indicates that the target PUSCH allows rate matching, the scheduling information indicates that the target PUSCH allows carrying of target feedback information, and the target feedback information is timed before a transmission start time of the target PUSCH;
a processing module, configured to determine, when it is determined that the target feedback information is allowed to be carried in the target PUSCH according to the scheduling information, a reserved resource for transmitting the target feedback information in resources of the target PUSCH; wherein the scheduling information is used for indicating a rate matching pattern of the target PUSCH, and the rate matching pattern corresponds to the reserved resources; the determining reserved resources for transmitting the target feedback information in the resources of the target PUSCH includes: and determining the reserved resources according to the rate matching pattern.
15. A network device, the network device being used in a new air interface unlicensed NR-U spectrum communication scenario, the network device comprising:
a transceiver module, configured to send scheduling information, where the scheduling information is used to indicate whether a target PUSCH allows rate matching, and when the scheduling information indicates that the target PUSCH allows rate matching, the scheduling information indicates that the target PUSCH allows carrying of target feedback information, and when determining that the target PUSCH allows carrying of the target feedback information according to the scheduling information, determines a reserved resource for transmitting the target feedback information in resources of the target PUSCH, where the target feedback information is timed before a transmission start time of the target PUSCH; wherein the scheduling information comprises a rate matching pattern of the target PUSCH, the rate matching pattern corresponding to the reserved resources.
16. A terminal device, which is applied to a new air interface unlicensed NR-U spectrum communication scenario, includes: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method for transmitting feedback information according to any one of claims 1 to 6.
17. A network device, which is applied in a new air interface unlicensed NR-U spectrum communication scenario, comprising: memory, processor and computer program stored on the memory and executable on the processor, which computer program, when being executed by the processor, carries out the steps of the method for transmitting feedback information according to any of claims 7 to 13.
18. A computer-readable medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method for transmitting feedback information according to any one of claims 1 to 13.
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