WO2020011109A1 - Procédé de transmission d'informations, terminal, et station de base - Google Patents

Procédé de transmission d'informations, terminal, et station de base Download PDF

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Publication number
WO2020011109A1
WO2020011109A1 PCT/CN2019/094852 CN2019094852W WO2020011109A1 WO 2020011109 A1 WO2020011109 A1 WO 2020011109A1 CN 2019094852 W CN2019094852 W CN 2019094852W WO 2020011109 A1 WO2020011109 A1 WO 2020011109A1
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WO
WIPO (PCT)
Prior art keywords
csi
pucch resource
ack
harq
sps pdsch
Prior art date
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PCT/CN2019/094852
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English (en)
Chinese (zh)
Inventor
高雪娟
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电信科学技术研究院有限公司
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Publication of WO2020011109A1 publication Critical patent/WO2020011109A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements 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
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • 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
    • 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
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H04L5/0057—Physical resource allocation for CQI

Definitions

  • the present disclosure relates to the technical field of communication applications, and in particular, to an information transmission method, terminal, and base station.
  • SPS Semi-Persistent Scheduling
  • PDSCH physical downlink shared channel
  • CS Cell Radio Network Temporary Identifier
  • the CS-C-RNTI is used for Identifies a physical downlink control channel (Physical Downlink Control Channel, PDCCH) corresponding to the SPS service, such as a PDCCH indicating activation of a downlink SPS resource, updating a PDCCH configured for SPS PDSCH transmission, and scheduling a PDCCH for SPS PDSCH retransmission.
  • PDCCH Physical Downlink Control Channel
  • the corresponding SPS PDSCH transmission is triggered, that is, the follow-up is determined according to a pre-configured transmission interval, the transmission position of the PDCCH indicating the activation of the downlink SPS resource, and the scheduling timing between the PDCCH and the PDSCH.
  • SPS PDSCH transmission position SPS PDSCH transmission configuration such as modulation and coding strategy (Modulation Coding Scheme, MCS), frequency domain resources and other information are notified in the PDCCH indicating downlink SPS resource activation, the base station in the corresponding time domain location and The SPS PDSCH is transmitted on the frequency domain resources, and the terminal receives the SPS PDSCH on the corresponding time domain location and frequency domain resources.
  • SPS PDSCH transmission configuration such as modulation and coding strategy (Modulation Coding Scheme, MCS)
  • MCS Modulation Coding Scheme
  • the terminal When the terminal receives the SPS PDSCH, the terminal sends the SPS PDSCH hybrid automatic retransmission request acknowledgement (HARQ) through the physical uplink control channel PUCCH or the physical uplink shared channel PUSCH according to the definition of the HARQ-ACK feedback timing.
  • HARQ hybrid automatic retransmission request acknowledgement
  • -ACK feedback information to inform the base station whether the SPS PDSCH transmission was received correctly.
  • the HARQ-ACK feedback timing can be defined as the reference slot corresponding to the PDSCH (considering that the uplink transmission carrying HARQ-ACK and the baseband parameter (numerology) of the PDSCH may be different, for example, the subcarrier interval is different, you need to define the reference slot to find the A slot boundary corresponding to the numerology of the uplink transmission carrying HARQ-ACK serves as a reference point for determining the HARQ-ACK transmission slot) to the time slot of the PUCCH / PUSCH carrying its HARQ-ACK, through a HARQ-
  • the ACK timing value can be determined.
  • the HARQ-ACK timing value can be indicated through the HARQ-ACK timing indication field in the PDCCH activated by the downlink SPS resource or pre-configured through high-level signaling. Therefore, the SPS PDSCH is located at a specific position according to a specific configuration. Transmission and HARQ-ACK feedback at a specific location.
  • the PUCCH resource for transmitting the HARQ-ACK of the SPS PDSCH is a PUCCH format 0 or 1 resource that is pre-configured for high-level signaling.
  • channel state information (Channel State Information, CSI) transmission can also be configured.
  • the time domain transmission position of the CSI can be determined according to a pre-configured transmission period and an offset position, and transmission is performed at a fixed position.
  • the CSI transmitted on the PUCCH can be Periodic CSI (Periodic-CSI, P-CSI) or Semi-Persistent CSI (SP-CSI), where SP-CSI needs to be activated through the PDCCH to start the cycle according to the configured transmission position.
  • Sexual transmission can be Periodic CSI (Periodic-CSI, P-CSI) or Semi-Persistent CSI (SP-CSI), where SP-CSI needs to be activated through the PDCCH to start the cycle according to the configured transmission position.
  • the PUCCH resource for transmitting the HARQ-ACK of the SPS PDSCH is a pre-configured PUCCH format (format) 0 or 1 for high-level signaling Resources cannot be used for transmission of more than 2 bits of information, so it cannot support the simultaneous transmission of HARQ-ACK of CSI and SPS PDSCH on the PUCCH resource used to transmit HARQ-ACK of SPS PDSCH. There is no clear method for how to carry out transmission in this case.
  • the purpose of the present disclosure is to provide an information transmission method, terminal, and base station to solve the problem of how to perform transmission if there is a conflict with the CSI transmitted on another PUCCH when the HARQ-ACK of the SPS PDSCH is transmitted on the PUCCH. Clarify programmatic issues.
  • the present disclosure provides an information transmission method, which is applied to a terminal and includes:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • the information transmission method further includes:
  • an embodiment of the present disclosure further provides an information transmission method, which is applied to a base station and includes:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • the information transmission method further includes:
  • an embodiment of the present disclosure further provides a terminal, including a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, where the processor executes the program
  • a terminal including a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, where the processor executes the program
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • the HARQ-ACK and the CSI of the SPS PDSCH are simultaneously sent by the transceiver on at least one determined PUCCH resource.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • the processor When there is a scheduling request SR that needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, the processor also implements the following steps when executing the program:
  • an embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the information transmission method described above are implemented.
  • an embodiment of the present disclosure further provides a base station, including: a transceiver, a memory, a processor, and a program stored in the memory and executable on the processor, which is implemented when the processor executes the program. The following steps:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • the HARQ-ACK and the CSI of the SPS PDSCH are received simultaneously by a transceiver on at least one determined PUCCH resource.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • the processor When there is a scheduling request SR that needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, the processor also implements the following steps when executing the program:
  • an embodiment of the present disclosure further provides a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, the steps of the information transmission method described above are implemented.
  • an embodiment of the present disclosure further provides a terminal, including:
  • the first selection module is used to confirm the HARQ-ACK and the channel state information CSI when the hybrid automatic retransmission request for the semi-persistently scheduled SPS physical downlink shared channel PDSCH is transmitted at the same time.
  • the sum of the number select a PUCCH resource set from a plurality of pre-configured PUCCH resource sets;
  • a determining module configured to determine at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the physical downlink control channel PDCCH indicating the activation of the downlink SPS resource in the time domain;
  • a sending module configured to send the HARQ-ACK of the SPS PDSCH and the CSI simultaneously on the determined at least one PUCCH resource.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • a second selection module configured to: when there is a scheduling request SR that needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, according to the HARQ-ACK of the SPS PDSCH, the CSI, and the bit of the SR Sum the numbers, and select one PUCCH resource set from a plurality of pre-configured PUCCH resource sets.
  • an embodiment of the present disclosure further provides a base station, including:
  • the third selection module is used to confirm the HARQ-ACK and the channel state information CSI when the hybrid automatic retransmission request for the semi-persistently scheduled SPS physical downlink shared channel PDSCH is transmitted simultaneously, according to the HARQ-ACK of the SPS PDSCH and the CSI bit The sum of the number, select a PUCCH resource set from a plurality of pre-configured PUCCH resource sets;
  • a second determining module configured to determine at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the physical downlink control channel PDCCH indicating the activation of the downlink SPS resource in the time domain;
  • a receiving module configured to simultaneously receive the HARQ-ACK and the CSI of the SPS PDSCH on at least one determined PUCCH resource.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • a fourth selection module configured to: when a scheduling request SR needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, according to the HARQ-ACK of the SPS PDSCH, the CSI, and the bit of the SR Sum the numbers, and select one PUCCH resource set from a plurality of pre-configured PUCCH resource sets.
  • one of the pre-configured multiple PUCCH resource sets is selected according to the sum of the HARQ-ACK of the SPS PDSCH and the CSI bits.
  • PUCCH resource set according to the PUCCH resource in the PDCCH indicating downlink SPS resource activation refers to the time domain, determine at least one PUCCH resource in the selected PUCCH resource set; and simultaneously send the SPS PDSCH on the determined at least one PUCCH resource
  • the HARQ-ACK and the CSI thereby solving the problem of how to transmit when the PUCCH of the HARQ-ACK carrying the SPS PDSCH and the PUCCH carrying the CSI overlap, and the information transmission method of the embodiment of the present disclosure can ensure that when multiple PUCCHs conflict , Does not discard any UCI, to ensure that the base station obtains multiple UCIs in a timely manner, improves UCI transmission efficiency, and improves system performance.
  • FIG. 1 is a first flowchart of an information transmission method according to an embodiment of the present disclosure
  • FIG. 2 is a second schematic flowchart of an information transmission method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of HARQ-ACK and CSI transmission in an embodiment of the present disclosure
  • FIG. 4 is a structural block diagram of a terminal according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic module diagram of a terminal provided by an embodiment of the present disclosure.
  • FIG. 6 is a structural block diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic block diagram of a base station according to an embodiment of the present disclosure.
  • the information transmission method according to the embodiment of the present disclosure is applied to a terminal. As shown in FIG. 1, the method includes:
  • Step 101 When a hybrid automatic retransmission request to simultaneously transmit the semi-persistently scheduled SPS physical downlink shared channel PDSCH is required to confirm HARQ-ACK and channel state information CSI, according to the sum of SPS PDSCH HARQ-ACK and the number of bits of the CSI, Select a PUCCH resource set from a plurality of pre-configured PUCCH resource sets.
  • the PUCCH carrying HARQ-ACK of the SPS PDSCH and the PUCCH carrying CSI are at There are overlaps in the domains, and the high-level signaling configuration supports simultaneous transmission of HARQ-ACK and CSI.
  • the PUCCH carrying the HARQ-ACK of the SPS PDSCH and the PUCCH carrying the CSI overlap in the time domain and can be completely overlapped, for example, the same start symbol, the same transmission length, or partial overlap, such as different start symbols Or the same start symbol but different transmission length.
  • the HARQ-ACK contained in the PUCCH that carries the HARQ-ACK of the SPS PDSCH is only the HARQ-ACK of the SPS PDSCH, that is, the PDSCH that does not contain the corresponding PDCCH or the HARQ-ACK indicating the release of downlink SPS resources .
  • the multiple PUCCH resource sets are pre-configured for high-level signaling.
  • the above CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the above SPS PDSCH is an SPS PDSCH in an active state, that is, a PDSCH without a corresponding PDCCH.
  • Step 102 Determine at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the physical downlink control channel PDCCH indicating the activation of the downlink SPS resource in the time domain.
  • PUCCH resource sets can be pre-configured for high-level signaling.
  • Each PUCCH resource set contains one or more PUCCH resources, and different PCUCH resource sets correspond to different uplink controls.
  • Information Uplink, Control, Information, UCI
  • transmission bit range For example, if 4 PUCCH resource sets are configured, the first PUCCH resource set corresponds to 1 to 2 bit UCI transmission, and the second PUCCH resource set corresponds to 3 to N 2 bit UCI.
  • the third PUCCH resource set corresponds to N2 + 1 to N3 bit UCI transmission
  • the fourth PUCCH resource set corresponds to N3 + 1 to N4 bit UCI transmission, where N2, N3, and N4 are values that are predefined or configured.
  • Step 103 Simultaneously send the HARQ-ACK of the SPS PDSCH and the CSI on the determined at least one PUCCH resource.
  • one of the pre-configured multiple PUCCH resource sets is selected according to the sum of the HARQ-ACK of the SPS PDSCH and the CSI bits.
  • PUCCH resource set according to the PUCCH resource in the PDCCH indicating downlink SPS resource activation refers to the time domain, determine at least one PUCCH resource in the selected PUCCH resource set; and simultaneously send the SPS PDSCH on the determined at least one PUCCH resource
  • the HARQ-ACK and the CSI thereby solving the problem of how to transmit when the PUCCH of the HARQ-ACK carrying the SPS PDSCH and the PUCCH carrying the CSI overlap, and the information transmission method of the embodiment of the present disclosure can ensure that when multiple PUCCHs collide , Does not discard any UCI, to ensure that the base station obtains multiple UCIs in a timely manner, improves UCI transmission efficiency, and improves system performance.
  • the above information transmission method further includes:
  • the SR needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, which means that the PUCCH carrying the SR and the PUCCH carrying the HARQ-ACK of the SPS PDSCH overlap in the time domain, or the PUCCH carrying the SR and the CSI.
  • the PUCCH overlaps in the time domain, or the PUCCH carrying the SR overlaps with the PUCCH carrying the HARQ-ACK of the SPS PDSCH and the PUCCH carrying the CSI, respectively;
  • the SR may be only one type of SR configured SR information, or it may be SR information configured for multiple SRs.
  • the specific number of SR bits can be Where K is the number of SR configurations that overlap with HARQ-ACK / CSI.
  • the information transmission method further includes:
  • the above process is applicable to the case where only HARQ-ACK of SPS PDSCH and CSI collide.
  • one of the pre-configured multiple PUCCH resource sets is selected according to the sum of the HARQ-ACK of the SPS PDSCH and the CSI bits.
  • PUCCH resource set according to the PUCCH resource in the PDCCH indicating downlink SPS resource activation refers to the time domain, determine at least one PUCCH resource in the selected PUCCH resource set; and simultaneously send the SPS PDSCH on the determined at least one PUCCH resource
  • the HARQ-ACK and the CSI thereby solving the problem of how to transmit when the PUCCH of the HARQ-ACK carrying the SPS PDSCH and the PUCCH carrying the CSI overlap, and the information transmission method of the embodiment of the present disclosure can ensure that when multiple PUCCHs collide , Does not discard any UCI, to ensure that the base station obtains multiple UCIs in a timely manner, improves UCI transmission efficiency, and improves system performance.
  • an embodiment of the present disclosure further provides an information transmission method applied to a base station.
  • the information transmission method includes:
  • Step 201 When it is necessary to simultaneously transmit a hybrid automatic retransmission request for semi-persistently scheduled SPS physical downlink shared channel PDSCH to confirm HARQ-ACK and channel state information CSI, according to the sum of SPS PDSCH HARQ-ACK and the number of bits of the CSI, Select a PUCCH resource set from a plurality of pre-configured PUCCH resource sets.
  • the PUCCH carrying the HARQ-ACK of the SPS PDSCH and the PUCCH carrying the CSI overlap in the time domain and can be completely overlapped, for example, the same start symbol, the same transmission length, or partial overlap, such as different start symbols, Or the same start symbol but different transmission length.
  • the HARQ-ACK included in the PUCCH that carries the HARQ-ACK of the SPS PDSCH is only the HARQ-ACK of the SPS PDSCH, that is, the HARQ-ACK of the PDSCH that does not include the corresponding PDCCH.
  • the multiple PUCCH resource sets are pre-configured for high-level signaling.
  • the above CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the above SPS PDSCH is an SPS PDSCH in an active state, that is, a PDSCH without a corresponding PDCCH.
  • Step 202 Determine at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the physical downlink control channel PDCCH indicating the activation of the downlink SPS resource in the time domain.
  • PUCCH resource sets can be pre-configured for high-level signaling.
  • Each PUCCH resource set contains one or more PUCCH resources, and different PCUCH resource sets correspond to different uplink controls.
  • Information Uplink, Control, Information, UCI
  • transmission bit range For example, if 4 PUCCH resource sets are configured, the first PUCCH resource set corresponds to 1 to 2 bit UCI transmission, and the second PUCCH resource set corresponds to 3 to N 2 bit UCI.
  • the third PUCCH resource set corresponds to N2 + 1 to N3 bit UCI transmission
  • the fourth PUCCH resource set corresponds to N3 + 1 to N4 bit UCI transmission, where N2, N3, and N4 are values that are predefined or configured.
  • Step 203 Receive the HARQ-ACK and the CSI of the SPS PDSCH simultaneously on the determined at least one PUCCH resource.
  • the simultaneous reception of the HARQ-ACK of the SPS PDSCH and the CSI on at least one PUCCH resource can ensure that no UCI is discarded when multiple PUCCH conflicts, ensure that the base station obtains multiple UCIs in time, and improve UCI transmission efficiency. Improve system performance.
  • the above information transmission method further includes:
  • the SR needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, which means that the PUCCH carrying the SR and the PUCCH carrying the HARQ-ACK of the SPS PDSCH overlap in the time domain, or the PUCCH carrying the SR and the CSI.
  • the PUCCH overlaps in the time domain, or the PUCCH carrying the SR overlaps the PUCCH carrying the HARQ-ACK of the SPS PDSCH and the PUCCH carrying the CSI respectively in the time domain.
  • step 201 before step 201 is performed, the method further includes:
  • simultaneous transmission When simultaneous transmission is configured, perform steps 201 to 203 above; otherwise, discard CSI and only transmit HARQ-ACK;
  • the above process is applicable to the case where only HARQ-ACK of SPS PDSCH and CSI collide.
  • one of the pre-configured multiple PUCCH resource sets is selected according to the sum of the HARQ-ACK of the SPS PDSCH and the CSI bits.
  • the HARQ-ACK and the CSI can ensure that no UCI is discarded when multiple PUCCHs collide, ensure that the base station obtains multiple UCIs in a timely manner, improve UCI transmission efficiency, and improve system performance.
  • the terminal receives a PDCCH scrambled with CS-RNTI in slot n + 1 of radio frame i, and determines that the PDCCH is used to indicate activation of downlink SPS resources, and determines the PDCCH location according to the scheduling timing in the PDCCH.
  • the scheduled PDSCH is transmitted in time slot n + 2, and assuming that the pre-configured SPS PDSCH transmission cycle is once every 10ms, it can be determined that in each radio frame starting with radio frame i, time slot n + 2 is SPS PDSCH Transmission opportunity; assuming that the HARQ-ACK timing value of SPS PDSCH is 6 (either the PDCCH indicating SPS PDSCH activation or the pre-configuration of high-level signaling), assuming that the PUCCH and SPS PDSCH transmission correspond to the same numerology, Then it can be determined that the SPS PDSCH in slot n + 2 performs HARQ-ACK feedback in slot n + 8; according to the PUCCH resources pre-configured to the SPS PDSCH in PDS, the HARQ- Time and frequency domain resources of the PUCCH of the ACK; it is assumed that periodic CSI is also configured in the system, and according to the configuration period and offset of the periodic CSI, it is determined that CSI feedback is performed in the time slot
  • Pre-configuration of high-level signaling can be determined Time-domain and frequency-domain resources of the PUCCH carrying CSI in time slot n + 8; as shown in FIG. 3, the time slot n + of each PUCCH carrying HARQ-ACK of SPS PDSCH and PUCCH carrying CSI in each radio frame There is overlap in the time domain in 8. Because the terminal does not support simultaneous transmission of multiple PUCCHs at the same time in the same carrier group, the following operations are performed in timeslot n + 8 in radio frames i and i + 1. :
  • the terminal selects one of the multiple PUCCH resource sets pre-configured in high-level signaling according to the sum of the HARQ-ACK feedback bits of the SPS PDSCH and the CSI. It is assumed that the HARQ-ACK feedback bits of the SPS PDSCH are 1 bit, and the CSI The number of bits is 20 bits. It is assumed that PUCCH resource set 1 corresponds to 1 to 2 bit transmission, PUCCH resource set 2 corresponds to 3 to 20 bit transmission, PUCCH resource set 3 corresponds to 21 to 50 bit transmission, and PUCCH resource set 4 corresponds to 51 to 100 bit. For transmission, the terminal selects PUCCH resource set 3.
  • the terminal further determines the specific resource in the PUCCH resource set 3 according to the indication of the PUCCH resource indication field in the PDCCH indicating the SPS resource activation received in the time slot n + 1 of the radio frame i.
  • the PUCCH resource indication field is 3 Bits, 3 bits of each bit of the indication field indicate one of the 8 PUCCH resources included in the PUCCH resource set 3, thereby determining one PUCCH resource in the PUCCH resource set 3.
  • the terminal transmits the HARQ-ACK and CSI of the SPS PDSCH at the same time on the PUCCH resource determined above.
  • the determined PUCCH resource can be determined according to the HARQ-ACK of the SPS PDSCH and the total number of CSI bits and the configured coding rate coding rate. Whether the included time-frequency domain resources (such as the number of RBs and the number of symbols) are sufficient to transmit the total number of bits of HARQ-ACK and CSI without exceeding the configured coding rate. If it is not sufficient, you can consider performing certain CSI Discard until the HARQ-ACK and the remaining CSI for transmitting the SPS PDSCH according to the above coding on the time-frequency domain resources included in the PUCCH resource are satisfied.
  • the frequency-domain resources included in the PUCCH resource can be further determined ( The actual number of RBs in the number of RBs.
  • the actual number of RBs is less than the number of RBs included in the PUCCH resource and the number of coding RBs that satisfy the HARQ-ACK and CSI transmission does not exceed the configured coding RB rate, which is used to save resources.
  • the base station side determines the actual PUCCH resources to be transmitted according to the same processing method as the terminal, and receives the HARQ-ACK and CSI of the SPS PDSCH on the determined PUCCH resources, thereby obtaining two types of UCI at the same time, avoiding that the terminal does not support multiple PUCCHs at the same time.
  • the system impact caused by discarding a certain UCI during transmission improves the system transmission efficiency.
  • the above embodiment only uses the PUCCH of the HARQ-ACK carrying the SPS PDSCH and the PUCCH of the CSI partially overlapping and the starting symbol of the PUCCH carrying the CSI ahead of the PUCCH of the HARQ-ACK carrying the SPS PDSCH as an example.
  • Overlapping conditions such as full overlap, that is, the PUCCH carrying HARQ-ACK of SPS PDSCH and the PUCCH carrying CSI have the same time domain symbol position (that is, the same starting position and length) in the same time slot, or carrying SPS
  • the above method is applicable to the case where the PUCCH of the HARQ-ACK of the PDSCH partially overlaps with the PUCCH of the CSI and the start symbol of the PUCCH of the HARQ-ACK of the PDSCH precedes the PUCCH of the CSI.
  • the above embodiment only uses SPS PDSCH and PUCCH to have the same numerology as an example. If different numerology is used, it only affects the determination of the corresponding HARQ-ACK transmission time slot according to the reference time slot and HARQ-ACK corresponding to the SPS PDSCH.
  • the end of the reference time slot The position may not be the end position of the time slot where the SPS PDSCH is located. This case is also applicable to the above method;
  • the above embodiment only uses the SPS PDSCH HARQ-ACK and CSI overlap as an example. If there is an overlap between the SR and the SR, the above method is also applicable. The only difference is that when determining the PUCCH resource set in the first step, the SPQ PDSCH HARQ is considered. -Total number of bits of ACK, CSI and SR;
  • the HARQ-ACK timing, scheduling timing, and periodic transmission position in the above embodiments are all examples, and other values or configuration conditions are also applicable to the embodiments of the present disclosure.
  • the information transmission method in the embodiment of the present disclosure ensures that no UCI is discarded when multiple PUCCHs collide, and ensures that even if the base station obtains multiple UCIs, it improves UCI transmission efficiency and system performance.
  • an embodiment of the present disclosure further provides a terminal, including a transceiver, a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor executes the processor
  • the computer program implements the following steps:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 400 and various circuits of the memory represented by the memory 420 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not further described herein.
  • the bus interface provides an interface.
  • the transceiver 410 may be multiple elements, including a transmitter and a transceiver, providing a unit for communicating with various other devices over a transmission medium.
  • the user interface 430 may also be an interface capable of externally connecting internally required devices.
  • the connected devices include, but are not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 when performing operations.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • the processor 400 is further configured to read the program in the memory 420 and execute the following steps:
  • One PUCCH resource set is selected from multiple PUCCH resource sets.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • an embodiment of the present disclosure further provides a terminal, including:
  • a first selection module 501 is configured to confirm the HARQ-ACK and the channel state information CSI when the hybrid automatic retransmission request for the semi-persistently scheduled SPS physical downlink shared channel PDSCH is transmitted simultaneously, according to the HARQ-ACK of the SPS PDSCH and the CSI.
  • the sum of the number of bits selects a PUCCH resource set from a plurality of pre-configured PUCCH resource sets;
  • a determining module 502 configured to determine at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the physical downlink control channel PDCCH indicating the activation of the downlink SPS resource in the time domain;
  • a sending module 503 is configured to simultaneously send the HARQ-ACK of the SPS PDSCH and the CSI on the determined at least one PUCCH resource.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • a second selection module configured to: when there is a scheduling request SR that needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, according to the HARQ-ACK of the SPS PDSCH, the CSI, and the bit of the SR Sum the numbers, and select one PUCCH resource set from a plurality of pre-configured PUCCH resource sets.
  • the terminal of the embodiment of the present disclosure needs to transmit the HARQ-ACK and CSI of the SPS PDSCH at the same time, it selects one PUCCH resource among a plurality of pre-configured PUCCH resource sets according to the sum of the HARQ-ACK of the SPS PDSCH and the CSI bits Set; determining at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the PDCCH indicating that the downlink SPS resource is activated; and simultaneously sending the HARQ- of the SPS PDSCH on the determined at least one PUCCH resource ACK and the CSI, thereby solving the problem of how to transmit when the PUCCH of the HARQ-ACK carrying the SPS PDSCH and the PUCCH carrying the CSI overlap, and the information transmission method of the embodiment of the present disclosure can ensure that when multiple PUCCHs conflict, Discard any UCI to ensure that the base station obtains multiple UCIs in a timely manner, improve UCI transmission efficiency, and improve system performance.
  • an embodiment of the present disclosure further provides a base station including a memory 620, a processor 600, a transceiver 610, a bus interface, and a computer program stored in the memory 620 and executable on the processor 600.
  • the processor 600 is configured to read a program in the memory 620 and execute the following processes:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 600 and various circuits of the memory represented by the memory 620 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, so they are not further described herein.
  • the bus interface provides an interface.
  • the transceiver 610 may be multiple elements, including a transmitter and a transceiver, providing a unit for communicating with various other devices over a transmission medium.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 may store data used by the processor 600 when performing operations.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • processor 600 executes the computer program
  • the following steps may also be implemented:
  • One PUCCH resource set is selected from multiple PUCCH resource sets.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the following steps are implemented:
  • the SPS PDSCH HARQ-ACK and the sum of the CSI bits are pre-configured Selecting one PUCCH resource set from among multiple PUCCH resource sets;
  • an embodiment of the present disclosure further provides a base station, including:
  • a third selection module 701 is configured to confirm the HARQ-ACK and the channel state information CSI when the hybrid automatic retransmission request for the semi-persistently scheduled SPS physical downlink shared channel PDSCH is transmitted simultaneously, according to the HARQ-ACK of the SPS PDSCH and the CSI.
  • the sum of the number of bits selects a PUCCH resource set from a plurality of pre-configured PUCCH resource sets;
  • a second determining module 702 configured to determine at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the physical downlink control channel PDCCH indicating the activation of the downlink SPS resource in the time domain;
  • the receiving module 703 is configured to simultaneously receive the HARQ-ACK and the CSI of the SPS PDSCH on at least one determined PUCCH resource.
  • the CSI includes periodic CSI, semi-persistent CSI, or aperiodic CSI.
  • the SPS PDSCH is an SPS PDSCH in an activated state.
  • a fourth selection module configured to: when a scheduling request SR needs to be transmitted simultaneously with the HARQ-ACK of the SPS PDSCH and the CSI, according to the HARQ-ACK of the SPS PDSCH, the CSI, and the bit of the SR Sum the numbers, and select one PUCCH resource set from a plurality of pre-configured PUCCH resource sets.
  • a PUCCH resource is selected from a plurality of pre-configured PUCCH resource sets Set; determining at least one PUCCH resource in the selected PUCCH resource set according to the PUCCH resource in the PDCCH indicating downlink SPS resource activation; receiving the SPS PDSCH HARQ- simultaneously on the determined at least one PUCCH resource.
  • the ACK and the CSI can ensure that no UCI is discarded when multiple PUCCHs collide, ensure that the base station obtains multiple UCIs in time, improve UCI transmission efficiency, and improve system performance.

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

Abstract

L'invention concerne un procédé de transmission d'informations, un terminal, et une station de base. Le procédé de transmission d'informations comprend les étapes suivantes : lorsqu'il est nécessaire de transmettre simultanément un HARQ-ACK de PDSCH à SPS et des CSI, sur la base de la somme des bits du HARQ-ACK de PDSCH à SPS et des CSI, sélectionner un ensemble de ressources PUCCH à partir d'une pluralité pré-configurée d'ensembles de ressources PUCCH ; sur la base d'un domaine temporel d'indication de ressources PUCCH dans le PDCCH indiquant l'activation de ressources SPS de liaison descendante, déterminer au moins une ressource PUCCH à partir de l'ensemble de ressources PUCCH sélectionné ; et envoyer un HARQ-ACK de PDSCH à SPS et des CSI simultanément sur l'au moins une ressource PUCCH déterminée.
PCT/CN2019/094852 2018-07-11 2019-07-05 Procédé de transmission d'informations, terminal, et station de base WO2020011109A1 (fr)

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