WO2020057639A1 - 混合自动重传请求确认码本的传输方法和设备 - Google Patents
混合自动重传请求确认码本的传输方法和设备 Download PDFInfo
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Definitions
- Embodiments of the present disclosure relate to the field of communications technologies, and in particular, to a method and device for transmitting a hybrid automatic repeat request confirmation codebook.
- the fifth-generation communication technology new wireless access technology (5G NR, New Radio Access Technology) supports semi-static hybrid automatic repeat request confirmation codebook (Semi-static HARQ-ACK codebook).
- the so-called Semi-static HARQ-ACK codebook that is, the hybrid automatic retransmission request confirmation codebook (HARQ-ACK codebook) is always transmitted according to a fixed size, that is, the size of the HARQ-ACK feedback sequence does not change as the scheduling situation changes
- the main purpose is to avoid the inconsistent understanding of the size of the HARQ-ACK codebook by the base station and the terminal caused by packet loss in the downlink.
- the determination process of the Semi-static HARQ-ACK codebook in the related technology is as follows: First, a transmission HARQ- is determined according to a pre-configured HARQ-ACK feedback timing set and a physical downlink shared channel (PDSCH, Physical Downlink Shared CHannel) candidate time domain resource set. The set of downlink transmission opportunities corresponding to the time slot of the ACK.
- the HARQ-ACK feedback timing sequence expresses the time slot interval between the time slot in which downlink transmission requiring HARQ-ACK feedback is located and the time slot in which HARQ-ACK is transmitted.
- a K1 set can be used to express the HARQ-ACK feedback timing set.
- the PDSCH candidate time domain resource set is a pre-configured table for high-level signaling. It usually contains multiple rows (for example, 16 rows), and each row contains at least the starting symbol position, transmission length, and scheduling timing K0, where K0 represents the physical downlink control channel. (PDCCH, Physical Downlink Control CHannel) and the time slot interval between the PDSCH being scheduled, and the specific information combination of different rows are different.
- the indication field in the PDCCH scheduling PDSCH may indicate one of the rows to the terminal, and then determine a PDSCH transmission slot and a specific symbol position in the slot according to the information contained in the PDSCH.
- the downlink transmission time slot set corresponding to a time slot can be determined according to the HARQ-ACK feedback timing set. For example, if HARQ-ACK is transmitted in time slot n, the corresponding downlink transmission time slot set can be determined according to nk, where k ⁇ K1 .
- Transmission opportunity; effective opportunity means that at least one time domain position in the PDSCH candidate time domain resource set does not conflict with the uplink and downlink ratio in this time slot.
- time slots with conflicting row ratios can be removed from the downlink transmission time slot set.
- an uplink time slot or a slot with a large number of uplink symbols is determined according to nk, where there are no or insufficient PDSCH candidate time domain resource sets.
- each time slot specifically includes one or more downlink transmissions, which depends on the UE capability.
- the downlink transmission here includes the PDSCH or SPS PDSCH release that requires HARQ-ACK feedback.
- the downlink transmission actually received in the downlink transmission opportunity set generates its HARQ-ACK and maps it to the corresponding position in the semi-static HARQ-ACK codebook, where the size of the semi-static HARQ-ACK codebook is always based on the above-mentioned downlink transmission opportunity
- the number of elements in the set is determined, that is, regardless of whether a certain time slot in the set of downlink transmission opportunities and the downlink transmission opportunity in the time slot are received in the downlink transmission opportunity determined in the above manner and require downlink transmission requiring HARQ-ACK feedback Both need to generate feedback information for this downlink transmission opportunity, so the number of bits of feedback information contained in the semi-static HARQ-ACK codebook will not change with how many downlink transmissions are actually scheduled.
- a NACK is generated for a position where no downlink transmission is received or a downlink transmission is received in the above-mentioned set of downlink transmission opportunities, but downlink transmission is not performed in the current slot according to the actual K1 indication.
- An object of the embodiments of the present disclosure is to provide a method and a device for transmitting a hybrid automatic retransmission request confirmation codebook, which reduce redundant HARQ-ACK feedback based on a consistent understanding of the number of HARQ-ACK transmission bits by the terminal and the base station. , Improve HARQ-ACK transmission efficiency and performance.
- An embodiment of the present disclosure provides a method for transmitting a hybrid automatic repeat request confirmation HARQ-ACK codebook, which is applied to a terminal and includes:
- the target downlink transmission includes at least one of the following transmissions:
- the first downlink transmission that does not meet the processing delay requirement
- An embodiment of the present disclosure also provides another method for transmitting a hybrid automatic repeat request confirmation HARQ-ACK codebook, which is applied to a base station and includes:
- the target downlink transmission includes at least one of the following transmissions:
- the first downlink transmission that does not meet the processing delay requirement
- An embodiment of the present disclosure further provides a terminal, which includes a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor;
- the transceiver is configured to send a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes the following transmission At least one:
- the first downlink transmission that does not meet the processing delay requirement
- An embodiment of the present disclosure further provides another terminal, including:
- a sending unit configured to send a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least one of the following transmissions Species:
- the first downlink transmission that does not meet the processing delay requirement
- An embodiment of the present disclosure further provides a base station, including: a transceiver, a memory, a processor, and a program stored on the memory and executable on the processor;
- the transceiver is configured to receive a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least the following transmissions One:
- the first downlink transmission that does not meet the processing delay requirement
- An embodiment of the present disclosure further provides another base station, including:
- a receiving unit configured to receive a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least one of the following transmissions :
- the first downlink transmission that does not meet the processing delay requirement
- the method and device for transmitting a hybrid automatic retransmission request confirmation codebook removes in the semi-static HARQ-ACK codebook the downlink transmission that cannot be included in the HARQ-ACK feedback processing delay and / or determined by UL grant HARQ-ACK can reduce redundant HARQ-ACK feedback and improve system efficiency and HARQ-ACK transmission performance on the basis of ensuring that the terminal and base station have a consistent understanding of the number of HARQ-ACK transmission bits.
- FIG. 1 shows a block diagram of a wireless communication system applicable to an embodiment of the present disclosure
- FIG. 2 is an example of related art HARQ-ACK feedback
- FIG. 3 is another example of HARQ-ACK feedback in the related art
- FIG. 4 is a flowchart of a method for transmitting a HARQ-ACK codebook according to an embodiment of the present disclosure
- FIG. 5 is another flowchart of a HARQ-ACK codebook transmission method according to an embodiment of the present disclosure
- FIG. 9 is another example of HARQ-ACK feedback provided by an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.
- FIG. 11 is another schematic structural diagram of a terminal according to an embodiment of the present disclosure.
- FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
- FIG. 13 is another schematic structural diagram of a base station according to an embodiment of the present disclosure.
- LTE Long Time Evolution
- LTE-A LTE-Advanced
- NR NR systems
- code division multiple access Code Division Multiple Access
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single Access Carrier Frequency-Division Multiple Access
- system and “network” are often used interchangeably.
- the CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA) and the like.
- UTRA includes Wideband CDMA (Wideband Code Division Multiple Access) and other CDMA variants.
- the TDMA system can implement a radio technology such as Global System for Mobile (Communication, Global System for Mobile).
- OFDMA system can implement such as Ultra Mobile Broadband (UMB), Evolution UTRA (Evolution-UTRA, E-UTRA), IEEE 1102.11 (Wi-Fi), IEEE 1102.16 (WiMAX), IEEE 1102.20, Flash-OFDM, etc. Radio technology.
- UMB Ultra Mobile Broadband
- Evolution-UTRA Evolution UTRA
- E-UTRA Evolution UTRA
- IEEE 1102.11 Wi-Fi
- IEEE 1102.16 WiMAX
- IEEE 1102.20 Flash-OFDM
- Flash-OFDM Flash-OFDM
- UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization named "3rd Generation Partnership Project” (3rd Generation Generation Partnership Project (3GPP)).
- CDMA2000 and UMB are described in documents from an organization named "3rd Generation Partnership Project 2" (3GPP2).
- 3GPP2 3rd Generation Partnership Project 2
- the techniques described herein can be used for both the systems and radio technologies mentioned above as well as other systems and radio technologies.
- the following description describes the NR system for example purposes and uses NR terminology in much of the description below, although these techniques can also be applied to applications other than NR system applications.
- FIG. 1 is a block diagram of a wireless communication system applicable to an embodiment of the present disclosure.
- the wireless communication system includes a terminal 11 and a base station 12.
- the terminal 11 may also be called a user terminal or UE (User Equipment).
- the terminal 11 may be a mobile phone, a tablet computer, a laptop computer, or a personal digital assistant (PDA).
- PDA personal digital assistant
- Mobile Internet device Mobile Internet Device, MID
- wearable device Wearable Device
- terminal equipment such as vehicle-mounted equipment
- the base station 12 may be a base station of 5G and later versions (for example, gNB, 5G, NR, NB, etc.), or a base station in other communication systems (for example, eNB, WLAN access point, or other access point, etc.).
- the base station may be Called Node B, Evolved Node B, Access Point, Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolution Node B (eNB), Home Node B, Home Node B, WLAN access point, WiFi node, or some other suitable term in the field, as long as the same technology is reached Effectively, the base station is not limited to a specific technical vocabulary. It should be noted that, in the embodiment of the present disclosure, only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
- the base station 12 may communicate with the terminal 11 under the control of a base station controller.
- the base station controller may be part of the core network or some base stations.
- Some base stations can communicate control information or user data with the core network through the backhaul.
- some of these base stations may communicate with each other directly or indirectly through a backhaul link, which may be a wired or wireless communication link.
- Wireless communication systems can support operation on multiple carriers (waveform signals of different frequencies).
- Multi-carrier transmitters can transmit modulated signals on these multiple carriers simultaneously.
- each communication link may be a multi-carrier signal modulated according to various radio technologies.
- Each modulated signal can be sent on a different carrier and can carry control information (eg, reference signals, control channels, etc.), overhead information, data, and so on.
- the base station 12 may perform wireless communication with the terminal 11 via one or more access point antennas. Each base station can provide communication coverage for its respective coverage area. The coverage area of an access point may be divided into sectors that constitute only a part of the coverage area.
- a wireless communication system may include different types of base stations (e.g., macro base stations, pico base stations, or pico base stations). Base stations can also utilize different radio technologies, such as cellular or WLAN radio access technologies. Base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations (including the coverage areas of the same or different types of base stations, the coverage areas using the same or different radio technologies, or the coverage areas belonging to the same or different access networks) may overlap.
- the communication link in the wireless communication system may include an uplink used to carry uplink (Uplink, UL) transmission (for example, from terminal 11 to base station 12), or used to carry downlink (Downlink, DL) transmission (For example, from the base station 12 to the user equipment 11).
- Uplink, UL transmission may also be referred to as reverse link transmission
- Downlink transmission may also be referred to as forward link transmission.
- Downlink transmission can be performed using licensed frequency bands, unlicensed frequency bands, or both.
- uplink transmissions can be performed using licensed frequency bands, unlicensed frequency bands, or both.
- the set of downlink transmission opportunities gives all possible sets of downlink transmissions that need to be HARQ-ACK feedback in a feedback slot, but according to the actual scheduling and transmission requirements, for the above downlink Downlink transmissions at some downlink transmission positions in the transmission opportunity set may not meet the processing delay requirements, such as the time required for parsing the downlink transmission (such as PDSCH) and / or the time required to prepare the corresponding HARQ-ACK transmission.
- the processing delay requirements such as the time required for parsing the downlink transmission (such as PDSCH) and / or the time required to prepare the corresponding HARQ-ACK transmission.
- the set of downlink transmission opportunities corresponding to time slot n that is, there is one PDSCH transmission opportunity in each time slot in the range of time slot n-4 to time slot n, but due to the downlink transmission in time slot n and the corresponding HARQ-ACK transmission position If it is too close, the PDSCH in slot n may not be processed (for example, the PDSCH analysis and / or the corresponding HARQ-ACK preparation has not been completed), and the corresponding HARQ-ACK feedback cannot be performed in slot n.
- Set a transmission opportunity downlink semi-static HARQ-ACK codebook does not satisfy the processing corresponding to the downlink propagation delay, corresponding to the position of the downstream feedback bits transmitted in semi-static HARQ-ACK codebook generated NACK as feedback information.
- PUSCH physical uplink shared channel
- PUSCH uplink shared channel
- UCI uplink control information
- PUSCH time domain resources may overlap.
- the PUSCH When the PUSCH has a corresponding PDCCH (that is, scheduled by UL grant) and the PDCCH uses downlink control information (DCI, Downlink Control Information) format 0_1, when the semi-static HARQ-ACK codebook is configured and used, the DCI format 0_1 includes a 1-bit downlink. Assignment Index (DAI, Downlink Assignment Index), commonly referred to as UL DAI, is used to indicate whether HARQ-ACK exists on the PUSCH.
- DCI Downlink Control Information
- UL DAI Downlink Assignment Index
- the UE will determine the PUSCH There is no HARQ-ACK transmission. At this time, if the terminal has a packet loss during downlink transmission, it will cause the terminal and the base station to have inconsistent understanding of whether there is HARQ-ACK transmission on the PUSCH. If HARQ-ACK is transmitted on the PUSCH using rate matching, the presence of HARQ-ACK will affect the encoding and rate matching of data on the PUSCH (that is, affect the code rate of the data) and the actual mapping resource location.
- the base station (such as gNB) Whether the recognition of the HARQ-ACK is inconsistent with the actual transmission of the UE will lead the base station to incorrectly decode the PUSCH, leading to the failure of receiving the PUSCH, and at the same time, it will increase the probability of the base station parsing the HARQ-ACK feedback information.
- the 1-bit DAI in the PDCCH scheduling PUSCH can only be counted according to the downlink scheduling that occurs no later than its transmission position, and cannot predict the subsequent downlink transmissions. Therefore, it is currently stipulated that when HARQ-ACK is transmitted on PUSCH and configured for use
- the semi-static HARQ-ACK codebook corresponds to the PDSCH or SPS PDSCH release scheduled by the PDCCH after the PDCCH scheduling the PUSCH (SPS PDSCH release is used to indicate the release of downlink SPS resources NACK is generated at the position of the PDCCH), that is, the corresponding HARQ-ACK cannot be transmitted on the PUSCH for these PDSCHs scheduled by the PDCCH later than the UL grant, but in order to ensure the stability of the semi-static HARQ-ACK codebook, NACK is required As a placeholder.
- the PDSCH in slot n-1 is scheduled by the PDCCH in slot n-1, and The PDSCH is scheduled by the PDCCH in slot n, which is later than the PDCCH scheduling PUSCH in slot n. Therefore, the PDSCH in slot n-1 and slot n cannot be transmitted in the PUSCH in slot n.
- a semi-static HARQ-ACK codebook corresponding to the time slot n generates a NACK as feedback information at the position of the downlink transmission corresponding to the time slot n-1 and the time slot n.
- the base station will not configure the downlink transmission in time slot n to perform HARQ- ACK feedback. This is because the minimum processing delay can be determined by both the base station and the terminal.
- the more reasonable processing method of the base station is to set K1 corresponding to PDSCH in slot n to 1 or a value greater than 1.
- the PDSCH in time slot n will perform HARQ-ACK feedback in time slot n + 1 or later, and this time slot for HARQ-ACK feedback should be a time slot that can meet the processing delay, otherwise Even if the base station schedules the PDSCH in time slot n, if it is configured to perform HARQ-ACK feedback in time slot n, it will never get the true HARQ-ACK information of this PDSCH. Therefore, such a schedule should be avoided by the base station
- the semi-static HARQ-ACK codebook corresponding to time slot n does not always include the HARQ-ACK of these downlink transmissions that do not meet the processing delay. Setting NACK as feedback information for these downlink transmissions is actually redundant. transmission.
- the K1 set is a shared set of multiple downlink carriers, and K1 may contain the union of the K1 values required by multiple carriers, so for a downlink carrier, the K1 set may be Contains one or more K1 values that cannot be used for this carrier.
- the K1 ⁇ 0,1,2 ⁇ in the K1 set is the K1 value that will not be used for transmission on this carrier.
- the codebook is always determined according to the K1 set as ⁇ 01,2,3,4,5 ⁇ , so there is multi-bit redundancy.
- the scheduling information is sent by the base station, when the base station determines that it will send a PDCCH in slot n-2 to schedule PUSCH transmission in slot n, it follows the above-mentioned "after scheduling the PDCCH for PUSCH"
- the downlink transmission scheduled by the sent PDCCH cannot be HARQ-ACK feedback on the PUSCH "rule.
- the base station should The PDSCH scheduled by the PDCCH is set with corresponding feedback timing to avoid HARQ-ACK feedback in time slot n.
- the semi-static HARQ-ACK codebook corresponding to timeslot n does not always include these HARQ-ACKs of the downlink transmissions scheduled by the PDCCH transmitted after scheduling the PDCCH of the PUSCH.
- NACK is set as feedback for these downlink transmissions.
- Information is actually redundant transmission.
- a method for transmitting a hybrid automatic retransmission request confirmation codebook which can reduce or avoid redundant HARQ-ACK transmission and improve HARQ-ACK transmission efficiency.
- a method for transmitting a HARQ-ACK codebook provided by an embodiment of the present disclosure when applied to a terminal side, includes:
- Step 401 Send a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least one of the following transmissions:
- the first downlink transmission that does not meet the processing delay requirement
- the first downlink transmission is a downlink transmission that fails to meet the processing delay requirement.
- the first downlink transmission may include one or more of the following transmissions: PDSCH scheduled by PDCCH, semi-persistent scheduling (SPS, Semi-Persistent Scheduling) PDSCH, and SPS PDSCH is released.
- the second downlink transmission may include one or more of the following transmissions: PDSCH scheduled by the PDCCH and SPS PDSCH release.
- the SPS PDSCH is a PDSCH without a corresponding PDCCH, that is, a PDSCH without a PDCCH scheduling.
- the SPS PDSCH release is a PDCCH for instructing the release of downlink SPS resources.
- the SPS PDCCH release is equivalent to the PDCCH indicating the downlink SPS resource release.
- the second downlink transmission is a PDCCH indicating the release of downlink SPS resources or a SPS PDCCH release
- HARQ-ACK feedback is directed to the PDCCH itself indicating the release of SPS resources.
- the second downlink transmission is PDSCH
- the second downlink transmission corresponding to the second PDCCH after the first PDCCH is a PDSCH scheduled by the second PDCCH.
- the second downlink transmission is SPS and the PDSCH is released, it is the same as the first PDCCH.
- the second downlink transmission corresponding to the subsequent second PDCCH is released for the SPS PDSCH indicated by the second PDCCH.
- the downlink transmission (or PDSCH) corresponding to a PDCCH may refer to the downlink transmission (or PDSCH) scheduled by the PDCCH.
- a PDCCH corresponding to a certain downlink transmission (or PDSCH) may refer to a PDCCH scheduling the downlink transmission (or PDSCH).
- the embodiments of the present disclosure can reduce or avoid the redundant feedback information of the above target downlink transmission, improve the HARQ-ACK transmission efficiency, and improve the system transmission performance.
- the terminal may first determine a set of downlink transmission opportunities corresponding to the semi-static HARQ-ACK codebook. And determining the target downlink transmission, and removing the target downlink transmission in the downlink transmission opportunity set to obtain a final downlink transmission opportunity set; and then, according to the final downlink transmission opportunity set, generating a corresponding semi-static HARQ-ACK Codebook.
- the embodiment of the present disclosure may also remove the target downlink transmission in the process of determining the downlink transmission opportunity set corresponding to the semi-static HARQ-ACK codebook, thereby directly obtaining the final downlink transmission opportunity set. ; Then, according to the final set of downlink transmission opportunities, a corresponding semi-static HARQ-ACK codebook is generated.
- the embodiment of the present disclosure may first determine a downlink transmission opportunity set corresponding to the semi-static HARQ-ACK codebook, and then determine a corresponding first semi-static HARQ-ACK codebook according to the downlink transmission opportunity set; Then, the target downlink transmission and its corresponding position in the first semi-static HARQ-ACK codebook are determined, and the corresponding feedback information of the target downlink transmission is removed from the first semi-static HARQ-ACK codebook, so that Get the final semi-static HARQ-ACK codebook.
- the terminal in the embodiment of the present disclosure needs to determine the first downlink transmission before sending the semi-static HARQ-ACK codebook.
- Embodiments of the present disclosure provide multiple methods for determining the first downlink transmission, such as:
- the first and second preset conditions will be described below.
- the first preset condition includes:
- the end symbol of the downlink transmission is later than the first reference symbol, which is: the first symbol at the T1 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK codebook, and the first downlink symbol Or the first Flexible symbol; or,
- the end symbol or end time of the downlink transmission is later than the first reference time, the first reference time is: the time T1 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK codebook; or,
- the time interval between the end symbol or end time of the downlink transmission and the start symbol or start time of the uplink channel carrying the HARQ-ACK is shorter than the T1 time
- the T1 is a predefined value; or the T1 is a value determined according to a configuration; or the T1 is a minimum processing delay for HARQ-ACK feedback for downlink transmission.
- the T1 is calculated according to any one of the following formulas:
- ⁇ 1 is the number of the smallest subcarrier interval among the PDCCH, PDSCH, and PUCCH corresponding subcarrier intervals, or ⁇ 1 is the PDCCH scheduling PDSCH, The number of the subcarrier interval in which the maximum T1 value can be obtained from the PDSCH and the PUCCH corresponding subcarrier intervals
- ⁇ 1 is the PDCCH indicating the SPS PDSCH release and the smallest subcarrier interval among the subcarrier intervals corresponding to the PUCCH, or ⁇ 1 is the PDCCH indicating the SPS PDSCH release and the PUCCH.
- the number of the subcarrier interval, or ⁇ 1 is the number of the subcarrier interval in which the maximum T1 value can be obtained from the corresponding subcarrier interval of the SPS PDSCH and PUCCH;
- the subcarrier interval corresponding to the PUCCH is the subcarrier interval corresponding to the PUCCH. If there are multiple overlapping PUCCHs, the subcarrier interval corresponding to the PUCCH includes the subcarrier interval corresponding to each of the overlapping PUCCHs. It can also be understood as taking the smallest of the subcarrier intervals corresponding to multiple PUCCHs first or obtaining Choose the subcarrier interval with the maximum T1 value, and then select the subcarrier interval corresponding to other channels.
- the downlink transmission is SPS PDSCH release
- the same T formula can be reused as when the downlink transmission is PDSCH.
- N 1 is a value determined according to ⁇ 1 and the terminal capability
- d 1,1 is a value related to the transmission length, mapping type and terminal capability of downlink transmission
- T c is the basic time unit (ie, the sampling time interval) in the NR system;
- ⁇ is the ratio between the basic time unit of the LTE system and the basic time unit of NR.
- the second preset condition includes:
- the end symbol of the PDCCH corresponding to the downlink transmission is later than the second reference symbol, where the second reference symbol is: the first symbol T2 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK, the first Downward symbols or the first Flexible symbol; or,
- the end symbol or end time of the PDCCH corresponding to the downlink transmission is later than the second reference time, the second reference time is: a time T2 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK; or,
- the time interval between the end symbol or end time of the PDCCH corresponding to the downlink transmission and the start symbol or start time of the uplink channel carrying the HARQ-ACK is shorter than the T2 time;
- the T2 is a predefined value; or the T2 is a value determined according to a configuration; or the T2 is a minimum processing delay for downlink transmission of HARQ-ACK and other information for multiplex transmission.
- the above other information may be information such as other uplink control information, uplink data (UL-SCH) carried on the PUSCH, and the like.
- the PDCCH corresponding to the downlink transmission is the PDCCH scheduling the PDSCH. If the downlink transmission is the SPS PDSCH release, the PDCCH corresponding to the downlink transmission is the PDCCH indicating the SPS PDSCH release.
- the T2 is calculated according to any one of the following formulas:
- ⁇ 2 is the number of the smallest subcarrier interval among the PDCCH, PDSCH, and PUCCH corresponding subcarrier intervals, or ⁇ 2 is the PDCCH scheduling PDSCH, The number of the subcarrier interval for which the maximum T2 value can be obtained from the corresponding subcarrier interval of the PDSCH and the PUCCH; and / or, when the downlink transmission is SPS PDSCH release, ⁇ 2 is the PDCCH indicating the SPS PDSCH release, and each of the PUCCH The number of the smallest subcarrier interval in the corresponding subcarrier interval, or ⁇ 2 is the number of the subcarrier interval in which the maximum T2 value can be obtained from the PDCCH released by the SPS PDSCH and the corresponding subcarrier interval of the PUCCH; and / Or, when the downlink transmission is the SPS PDSCH, ⁇ 2 is the number of the smallest subcarrier interval among the PDCCH, PDSCH, and PUCCH corresponding subcarrier intervals, or
- N 2 is a value determined according to ⁇ 2 and the terminal capability
- T c is the basic time unit in the NR system
- ⁇ is the ratio between the basic time unit of the LTE system and the basic time unit of NR.
- the T2 is calculated according to any of the following formulas:
- ⁇ 3 is the number of the smallest subcarrier interval among the PDCCH, PUCCH, and PUSCH corresponding to downlink transmission, or ⁇ 3 is the subcarrier interval corresponding to PDCCH, PUCCH, and PUSCH corresponding to downlink transmission.
- the number of the subcarrier interval with the largest T2 value can be obtained.
- the subcarrier interval corresponding to PUCCH and PUSCH is the subcarrier interval corresponding to this PUCCH and this PUSCH respectively.
- the subcarrier interval corresponding to PUCCH and PUSCH includes the subcarrier interval corresponding to each of the overlapping PUCCH and PUSCH. It can also be understood as taking one of the subcarrier intervals corresponding to multiple PUCCH and PUSCH first. The subcarrier interval with the smallest or maximum T1 value can be obtained, and then the subcarrier interval corresponding to other channels is selected.
- ⁇ 4 is the number of the smallest subcarrier interval among the PDCCH, PUCCH, and PUSCH corresponding to the downlink transmission and / or PUSCH, or ⁇ 4 is the PDCCH, PUCCH, and PUSCH corresponding to the downlink transmission and / or PUSCH respectively The number of the subcarrier interval in which the maximum T2 value can be obtained from the corresponding subcarrier interval;
- ⁇ 5 is the number of the smallest subcarrier interval among downlink transmission and / or PUSCH corresponding to PDCCH, PUCCH, PUSCH, and A-CSI-RS corresponding to PUSCH corresponding PDCCH, or ⁇ 5 is
- the PDCCH, PUCCH, PUSCH corresponding to the downlink transmission and / or PUSCH and the aperiodic channel state information reference signal A-CSI-RS corresponding to the PDCCH corresponding to the PUSCH can obtain the largest T2 value in the subcarrier interval.
- Carrier interval number
- Z is the delay corresponding to the aperiodic channel state information A-CSI
- d is the number of symbols that overlap between the PDCCH and the scheduled PDSCH
- T c is the basic time unit in the NR system
- ⁇ is the ratio between the basic time unit of the LTE system and the basic time unit of NR.
- the semi-static HARQ-ACK codebook when the semi-static HARQ-ACK codebook is transmitted on the PUCCH, if there are multiple downlink semi-static HARQ-ACK codebooks that need to be transmitted on the same PUCCH at the same time, scheduling said The PUCCH resources indicated by the PUCCH resource indication fields in multiple downlink transmitted PDCCHs are the same.
- a method for transmitting a HARQ-ACK codebook provided by an embodiment of the present disclosure, when applied to a base station side includes:
- Step 501 Receive a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least one of the following transmissions:
- the first downlink transmission that does not meet the processing delay requirement
- the first downlink transmission includes at least one of PDSCH, SPS PDSCH, and SPS PDSCH release scheduled by the PDCCH;
- the second downlink transmission includes at least one of PDSCH scheduled by the PDCCH and SPS PDSCH release.
- the base station Before receiving the semi-static HARQ-ACK codebook in step 501, the base station may also determine the length of the semi-static HARQ-ACK codebook, and then in step 501 receive the downlink according to the determined length of the semi-static HARQ-ACK codebook. The corresponding semi-static HARQ-ACK codebook is transmitted.
- the base station in the embodiment of the present disclosure can use the same understanding of the number of HARQ-ACK transmission bits as the terminal side and receive the semi-static HARQ-ACK codebook, thereby reducing redundant HARQ-ACK feedback, improving system efficiency and HARQ-ACK transmission performance.
- the base station may first determine a set of downlink transmission opportunities corresponding to the semi-static HARQ-ACK codebook, and determine the target downlink transmission, and Removing the target downlink transmission in the downlink transmission opportunity set to obtain a final downlink transmission opportunity set; and then generating a corresponding semi-static HARQ-ACK codebook according to the final downlink transmission opportunity set.
- the embodiment of the present disclosure may also remove the target downlink transmission in the process of determining the downlink transmission opportunity set corresponding to the semi-static HARQ-ACK codebook, thereby directly obtaining the final downlink transmission opportunity set. ; Then, according to the final set of downlink transmission opportunities, a corresponding semi-static HARQ-ACK codebook is generated.
- the embodiment of the present disclosure may first determine a downlink transmission opportunity set corresponding to the semi-static HARQ-ACK codebook, and then determine a corresponding first semi-static HARQ-ACK codebook according to the downlink transmission opportunity set; Then, the target downlink transmission and its corresponding position in the first semi-static HARQ-ACK codebook are determined, and the corresponding feedback information of the target downlink transmission is removed from the first semi-static HARQ-ACK codebook, so that Get the final semi-static HARQ-ACK codebook.
- the base station in the embodiment of the present disclosure needs to determine the first downlink transmission before receiving the semi-static HARQ-ACK codebook.
- Embodiments of the present disclosure provide multiple methods for determining the first downlink transmission, such as:
- a downlink transmission satisfying both the first preset condition and the second preset condition is determined as the first downlink transmission.
- Example 1 Taking FDD single carrier as an example, there are uplink resources and downlink resources in each time slot; for simplicity, it is assumed that there is only one PDSCH transmission in each time slot (a PDSCH can also have multiple TDM PDSCHs in one time slot, The number of PDSCHs in different time slots can also be different, depending on the UE capabilities and the configuration of the PDSCH candidate time domain resource set.
- the time domain transmission position of the PDSCH in FIG. 6 in each time slot is for illustration only.
- the transmission position can be the same or different, and can be any one of the PDSCH candidate time domain resource sets); it is assumed that there is one PDCCH monitoring in each time slot (there can also be multiple PDCCH monitoring in one time slot, not at the same time There can also be different numbers of PDCCH monitoring in the slots.
- the time domain transmission position of the PDCCH monitoring in each time slot in Figure 6 is for illustration only.
- the PDCCH scheduling PDSCH also notifies a K1 value, which is used to determine where the HARQ-ACK feedback information of the PDSCH is transmitted
- Time slot is n + K0 + K1; assuming that each PDSCH corresponds to a 1-bit HARQ-ACK (for example, each PDSCH is configured with a single TB transmission), assuming that the pre-configured K1 set contains 5 values ⁇ 0,1 , 2,3,4 ⁇ , the way to determine the semi-static HARQ-ACK codebook in slot n
- the semi-static HARQ-ACK codebook corresponding to the PDSCH transmission opportunity set M that can be transmitted in time slot n can be determined, that is, time slot n-4 to time slot n and each time slot There can be one PDSCH transmission in each;
- a reference point or reference symbol for example, the first symbol or downlink symbol or Flexible symbol that meets T time
- One of the determination methods may be predetermined or predefined in the protocol
- the end time that is, the end position of the last symbol of the PDSCH
- the end time that is, the end position of the last symbol of the PDSCH
- the end time that is, the end position of the last symbol of the PDSCH
- the reference point or reference symbol is shown in Figure 6, it can be determined that the HARQ-ACK of PDSCH in slot n-1 and slot n cannot be included in slot n.
- the candidate PDSCH transmission opportunities in these two time slots are removed from the M set to obtain the final M set, which is finally used to determine the semi-static HARQ in the time slot n.
- the M set of the ACK codebook is 3 PDSCH transmission opportunities in time slot n-4 to time slot n-2; here, it can also be combined with the first step, that is, first determine the reference point or reference symbol, and then As described in the first step Determine M. In the process of determining M, the transmission opportunities that do not meet the reference point or reference symbol are directly removed to obtain the final M set.
- the semi-static HARQ-ACK codebook in slot n can be determined as 3 bits, the first bit corresponds to the PDSCH in time slot n-4, the second bit corresponds to the PDSCH in time slot n-3, and the third bit corresponds to the PDSCH in time slot n-2; another method can be based on The number of elements in the set M determined based on the original K1 is five, and it is determined that the semi-static HARQ-ACK codebook contains a 5-bit HARQ-ACK corresponding to one PDSCH in time slot n-4 to time slot n, and then based on The reference point or reference symbol obtained by T determines the end position of the PDSCH HARQ-ACK that is later than this reference point or reference symbol cannot be included in the semi-static HARQ-ACK codebook in slot n, and from the determined 5-bit semi -static HARQ-ACK The last 2 bits are removed from the codebook, and finally 3 bits of HARQ-ACK remain, corresponding to the three
- the UE determines that the processing cannot be completed, it is also impossible to perform HARQ-ACK feedback on these PDSCHs in slot n; Regardless of whether the base station schedules PDSCHs at these locations for HARQ-ACK feedback in slot n, the true HARQ-ACK of these PDSCHs cannot always be included in the semi-static HARQ-ACK codebook in slot n.
- the slot The semi-static HARQ-ACK codebook in n only needs to be determined based on the PDSCH transmission opportunities capable of HARQ-ACK feedback, and it is not necessary to perform NACK occupancy on those PDSCH transmission opportunities that are not capable of HARQ-ACK feedback, thereby reducing HARQ-ACK transmission of redundant information to improve transmission efficiency and performance .
- the base station and the terminal determine the reference point or reference symbol according to the same T and PUCCH starting time, and the size of the obtained semi-static HARQ-ACK codebook is consistent, and there is no interpretation ambiguity.
- Example 2 Take FDD single carrier as an example, there are uplink resources and downlink resources in each time slot; for simplicity, it is assumed that there is 1 PDSCH transmission in each time slot (a PDSCH can also have multiple TDM PDSCHs, The number of PDSCHs in different time slots can also be different, depending on the UE capability and the configuration of the PDSCH candidate time domain resource set.
- the time domain transmission position of the PDSCH in FIG. 7 in each time slot is only an illustration.
- the transmission position can be the same or different, and can be any one of the PDSCH candidate time domain resource sets); it is assumed that there is 1 PDCCH monitoring in each time slot (there can also be multiple PDCCH monitoring in one time slot, no There can also be different numbers of PDCCH monitoring in the slot at the same time.
- the time domain transmission position of the PDCCH monitoring in each time slot in Figure 7 is for illustration only.
- K0 0 as an example, that is, the PDCCH monitoring in slot n
- the PDCCH transmitted in the occasion schedules a PDSCH transmitted in time slot n + K0 (that is, time slot n)
- the PDCCH scheduling PDSCH also notifies a K1 value, which is used to determine where the HARQ-ACK feedback information of the PDSCH is transmitted.
- the time slot is n + K0 + K1; assuming that each PDSCH corresponds to a 1-bit HARQ-ACK (for example, each PDSCH is configured with a single TB transmission), assuming that the pre-configured K1 set contains 5 values ⁇ 0,1, 2,3,4 ⁇ ;
- K2 1 is the PUSCH scheduling timing, which indicates the PDCCH scheduling slot in slot n-1
- the method of determining the semi-static HARQ-ACK codebook in slot n is as follows:
- the semi-static HARQ-ACK codebook corresponding to the PDSCH transmission opportunity set M that can be transmitted in time slot n can be determined, that is, time slot n-4 to time slot n and each time slot There can be one PDSCH transmission in each;
- Solution a As shown in FIG. 7, it is determined that downlink transmissions scheduled by the PDCCH transmitted in the monitoring and occasion after UL grant (PDCCH scheduling PUSCH) included in the above M set are removed from the M set, that is, due to time
- the PDSCH in slot n is scheduled by the PDCCH transmitted in the PDCCH monitoring and occasion after the UL grant.
- the PDSCH in slot n is not included, and the final M set is obtained, that is, its HARQ-ACK cannot be included in the semi-semi- In the static HARQ-ACK codebook, or it can be directly combined with the first step here, that is, when determining the M set, consider that the M set does not include the PDCCH monitoring after UL grant (PDCCH scheduling PUSCH).
- the semi-static HARQ-ACK codebook contains a 5-bit HARQ-ACK, which corresponds to one PDSCH in time slot n-4 to time slot n, and then remove the The downlink transmission of PDCCH scheduled in PDCCH monitoring and occasion after UL grant, so that the last 1 bit is removed from the determined 5-bit semi-static HARQ-ACK codebook, and finally the remaining 4 bits of HARQ-ACK correspond to time slots n- 4 to 4 PDSCHs in time slot n-1;
- T time forward (if agreed, it can also be forward T according to the start position of the first symbol of PUCCH Time), find a reference point or reference symbol (for example, the first symbol or downlink symbol or Flexible symbol that meets T time, the terminal and the base station may agree in advance or one of the determination methods is predefined in the agreement), and determine the end The time (that is, the end position of the last symbol of the PDSCH) is shorter than this reference point or the HARQ-ACK of the PDSCH of the reference symbol cannot be included in the semi-static HARQ-ACK codebook in slot n, such as the reference point or the reference symbol such as As shown in FIG.
- the semi-static HARQ-ACK codebook in slot n is 3 bits, the first bit corresponds to the PDSCH in slot n-4, and the second bit corresponds to slot n-3
- the PDSCH in the third bit corresponds to the PDSCH in the time slot n-2; another way may be to determine the semi-static HARQ-ACK codebook according to the number of elements in the set M determined based on the original K1 to five Contains a 5-bit HARQ-ACK corresponding to one PDSCH in time slot n-4 to time slot n, and then determines the HARQ-ACK of the PDSCH whose end position is later than this reference point or reference symbol based on the reference point or reference symbol obtained by T Cannot be included in the semi-static HARQ-ACK codebook in time slot n, so the last 2 bits are removed from the determined 5-bit semi-static HARQ-ACK codebook, and finally the remaining 3 bits of HARQ-ACK correspond to time slot n -4 to 3
- Solution c Determined according to T and UL grant at the same time, as shown in FIG. 9, which is equivalent to removing the union of the PDSCHs that cannot be included and determined according to method 1 and method 2 described above, so the final M set contains only time slots PDSCH in time slot n-4 to time slot n-2, so finally 3-bit HARQ-ACK is transmitted;
- K1 1
- the base station can still perform downlink scheduling in slot n.
- the UE determines that these downlink transmissions occur after UL grant, because the DAI in UL grant cannot include these transmissions.
- the base station and the terminal both determine which downlink transmissions cannot be included in the semi-static HARQ-ACK codebook according to the same rules (for example, both according to UL grant, or both according to T, or both considering UL grant and T).
- the size of the semi-static HARQ-ACK codebook is consistent, and there is no interpretation ambiguity.
- replacing all or any of the PDSCHs with SPS PDSCH release (ie, a PDCCH indicating the release of SPS resources) is also applicable.
- This SPS PDSCH release is itself a PDCCH and needs to be in each slot PDCCH monitoring, transmission is no longer required for other PDCCHs to schedule this transmission, and replacing all or any of the PDSCHs with SPS PDSCH is also applicable.
- the above example only uses FDD as an example.
- each carrier determines its corresponding M set according to the PDSCH candidate time domain resource set, K1 set, and the slot structure (if configured) of the carrier, The other methods are the same as above. After the HARQ-ACK codebook corresponding to each carrier is obtained, the HARQ-ACK codebooks of multiple carriers are cascaded according to the carrier number in ascending order to form the HARQ-ACK codebook that is finally transmitted on the PUCCH.
- T is calculated according to the following formula in the first preset condition:
- the T value may be the T1 value in the first preset condition, for example or T can also be the T2 value in the second preset condition, such as:
- the T value may be the T1 value in the first preset condition, which is the same as above; T may also be the T2 value in the second preset condition, such as: or T may also be a maximum value or a minimum value of T1 in the first preset condition and T2 in the second preset condition, which is similar to the above and will not be described again.
- T value is merely an example, and the definition of the T value in other ways is not excluded, such as the T value formula obtained by other combinations of the various time parameters appearing above.
- the same or different manner as described above may be used for judgment.
- the semi-static HARQ-ACK codebook When the semi-static HARQ-ACK codebook is transmitted on the PUCCH, if there are multiple downlink semi-static HARQ-ACK codebooks that need to be transmitted on the same PUCCH at the same time, the PUCCH resources in the multiple downlink transmitted PDCCHs are scheduled.
- the indication field indicates the same PUCCH resource.
- an embodiment of the present disclosure further provides a device for implementing the above method.
- the terminal 100 includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004, and a bus interface, where:
- the terminal 1000 further includes a computer program stored on the memory 1003 and executable on the processor 1001.
- the transceiver 1002 is configured to send a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes the following transmissions At least one of:
- the first downlink transmission that does not meet the processing delay requirement
- the first downlink transmission includes at least one of PDSCH, SPS PDSCH and SPS PDSCH release scheduled by the PDCCH;
- the second downlink transmission includes at least one of a PDSCH scheduled by the PDCCH and a SPS PDSCH release.
- the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 1001 and various circuits of the memory represented by the memory 1003 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 described further herein.
- the bus interface provides an interface.
- the transceiver 1002 may be multiple elements, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium.
- the user interface 1004 may also be an interface capable of externally connecting and connecting the required equipment.
- the connected equipment includes, but is not limited to, a keypad, a display, a speaker, a microphone, a joystick, and the like.
- the processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 can store data used by the processor 1001 when performing operations.
- the processor 1001 is configured to read a program in a memory and execute the following process: when the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to the first downlink transmission, Before sending the semi-static HARQ-ACK codebook corresponding to the downlink transmission, the first downlink transmission is further determined in the following manner:
- a downlink transmission satisfying both the first preset condition and the second preset condition is determined as the first downlink transmission.
- the first preset condition includes:
- the end symbol of the downlink transmission is later than the first reference symbol, which is: the first symbol at the T1 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK codebook, and the first downlink symbol Or the first flexible symbol; or,
- the end symbol or end time of the downlink transmission is later than the first reference time, the first reference time is: the time T1 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK codebook; or,
- the time interval between the end symbol or end time of the downlink transmission and the start symbol or start time of the uplink channel carrying the HARQ-ACK is shorter than the T1 time
- the T1 is a predefined value; or the T1 is a value determined according to a configuration; or the T1 is a minimum processing delay for HARQ-ACK feedback for downlink transmission.
- the T1 is calculated according to any one of the following formulas:
- ⁇ 1 is the number of the smallest subcarrier interval among the PDCCH, PDSCH, and PUCCH corresponding subcarrier intervals, or ⁇ 1 is the PDSCH scheduled PDSCH.
- N 1 is a value determined according to ⁇ 1 and the terminal capability
- d 1,1 is a value related to the transmission length, mapping type and terminal capability of downlink transmission
- T c is the basic time unit in the NR system
- ⁇ is the ratio between the basic time unit of the LTE system and the basic time unit of NR.
- the second preset condition includes:
- the end symbol of the PDCCH corresponding to the downlink transmission is later than the second reference symbol, where the second reference symbol is: the first symbol T2 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK, the first Downward symbols or the first Flexible symbol; or,
- the end symbol or end time of the PDCCH corresponding to the downlink transmission is later than the second reference time, the second reference time is: a time T2 time before the start position of the start symbol of the uplink channel carrying the HARQ-ACK; or,
- the time interval between the end symbol or end time of the PDCCH corresponding to the downlink transmission and the start symbol or start time of the uplink channel carrying the HARQ-ACK is shorter than the T2 time;
- the T2 is a predefined value; or the T2 is a value determined according to a configuration; or the T2 is a minimum processing delay for downlink transmission of HARQ-ACK and other information for multiplex transmission.
- the T2 is calculated according to any one of the following formulas:
- ⁇ 2 is the number of the smallest subcarrier interval among the PDCCH, PDSCH, and PUCCH corresponding subcarrier intervals, or ⁇ 2 is the PDCCH scheduling PDSCH, The number of the subcarrier interval for which the maximum T2 value can be obtained from the corresponding subcarrier interval of the PDSCH and the PUCCH; and / or, when the downlink transmission is SPS PDSCH release, ⁇ 2 is the PDCCH indicating the SPS PDSCH release, and each of the PUCCH The number of the smallest subcarrier interval in the corresponding subcarrier interval, or ⁇ 2 is the number of the subcarrier interval in which the maximum T2 value can be obtained from the PDCCH released by the SPS PDSCH and the corresponding subcarrier interval of the PUCCH; and / Or, when the downlink transmission is the SPS PDSCH, ⁇ 2 is the number of the smallest subcarrier interval among the PDCCH, PDSCH, and PUCCH corresponding subcarrier intervals, or
- N 2 is a value determined according to ⁇ 2 and the terminal capability
- T c is the basic time unit in the NR system
- ⁇ is the ratio between the basic time unit of the LTE system and the basic time unit of NR.
- the T2 is calculated according to any one of the following formulas:
- ⁇ 3 is the number of the smallest subcarrier interval among the PDCCH, PUCCH, and PUSCH corresponding to downlink transmission, or ⁇ 3 is the subcarrier interval corresponding to PDCCH, PUCCH, and PUSCH corresponding to downlink transmission.
- ⁇ 4 is the number of the smallest subcarrier interval among the PDCCH, PUCCH, and PUSCH corresponding to the downlink transmission and / or PUSCH, or ⁇ 4 is the PDCCH, PUCCH, and PUSCH corresponding to the downlink transmission and / or PUSCH respectively The number of the subcarrier interval in which the maximum T2 value can be obtained from the corresponding subcarrier interval;
- ⁇ 5 is the number of the smallest subcarrier interval among downlink transmission and / or PUSCH corresponding to PDCCH, PUCCH, PUSCH, and A-CSI-RS corresponding to PUSCH corresponding PDCCH, or ⁇ 5 is
- the PDCCH, PUCCH, PUSCH corresponding to the downlink transmission and / or PUSCH and the aperiodic channel state information reference signal A-CSI-RS corresponding to the PDCCH corresponding to the PUSCH can obtain the largest T2 value from the Carrier interval number;
- Z is the delay corresponding to the aperiodic channel state information A-CSI
- d is the number of symbols that overlap between the PDCCH and the scheduled PDSCH
- T c is the basic time unit in the NR system
- ⁇ is the ratio between the basic time unit of the LTE system and the basic time unit of NR.
- scheduling the The PUCCH resource indication field indicates the same PUCCH resource.
- an embodiment of the present disclosure provides another terminal 110, including:
- a sending unit 111 is configured to send a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least the following transmissions One:
- the first downlink transmission that does not meet the processing delay requirement
- the terminal may further include:
- a determining unit configured to: when the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to the first downlink transmission, further determine the first downlink transmission in the following manner:
- a downlink transmission satisfying both the first preset condition and the second preset condition is determined as the first downlink transmission.
- the multiple downlink transmitted PDCCHs are scheduled.
- the PUCCH resource indication field in indicates the same PUCCH resource.
- an embodiment of the present disclosure provides a schematic structural diagram of a base station 1200, including: a processor 1201, a transceiver 1202, a memory 1203, and a bus interface, where:
- the base station 1200 further includes: a computer program stored on the memory 1203 and executable on the processor 1201.
- the transceiver 1202 is configured to receive a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes the following transmission At least one:
- the first downlink transmission that does not meet the processing delay requirement
- the first downlink transmission includes at least one of PDSCH, SPS PDSCH and SPS PDSCH release scheduled by the PDCCH;
- the second downlink transmission includes at least one of a PDSCH scheduled by the PDCCH and a SPS PDSCH release.
- the bus architecture may include any number of interconnected buses and bridges, and one or more processors specifically represented by the processor 1201 and various circuits of the memory represented by the memory 1203 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 described further herein.
- the bus interface provides an interface.
- the transceiver 1202 may be a plurality of elements, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.
- the processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 when performing operations.
- the processor 1201 is configured to read a program in a memory and execute the following process: before receiving the semi-static HARQ-ACK codebook, determine a length of the semi-static HARQ-ACK codebook.
- the processor 1201 is further configured to, when the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to the first downlink transmission, further determine the First downlink transmission:
- a downlink transmission satisfying both the first preset condition and the second preset condition is determined as the first downlink transmission.
- the processor 1201 is further configured to: when the semi-static HARQ-ACK codebook is transmitted on the PUCCH, if there are multiple downlink semi-static HARQ-ACK codebooks that need to be transmitted on the same PUCCH at the same time, Then the same PUCCH resource is indicated in a PUCCH resource indication field in the PDCCH scheduling the multiple downlink transmissions.
- the base station 130 includes:
- the receiving unit 131 is configured to receive a semi-static HARQ-ACK codebook, wherein the semi-static HARQ-ACK codebook does not include HARQ-ACK feedback information corresponding to a target downlink transmission, and the target downlink transmission includes at least one of the following transmissions Species:
- the first downlink transmission that does not meet the processing delay requirement
- the base station further includes:
- a determining unit configured to determine the length of the semi-static HARQ-ACK codebook corresponding to the downlink transmission before receiving the semi-static HARQ-ACK codebook corresponding to the downlink transmission.
- the above determining unit is further configured to determine the first downlink message when the semi-static HARQ-ACK codebook does not include the HARQ-ACK feedback information corresponding to the first downlink transmission.
- a downlink transmission satisfying both the first preset condition and the second preset condition is determined as the first downlink transmission.
- the disclosed apparatus and method may be implemented in other ways.
- the device embodiments described above are only schematic.
- the division of the unit is only a logical function division.
- multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not implemented.
- the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present disclosure.
- each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each of the units may exist separately physically, or two or more units may be integrated into one unit.
- the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium.
- the technical solution of the present disclosure is essentially a part that contributes to the existing technology or a part of the technical solution may be embodied in the form of a software product.
- the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method for transmitting the hybrid automatic repeat request confirmation codebook in each embodiment of the present disclosure.
- the foregoing storage medium includes various media that can store program codes, such as a U disk, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
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Abstract
Description
Claims (41)
- 一种混合自动重传请求确认HARQ-ACK码本的传输方法,应用于终端,包括:发送半静态HARQ-ACK码本,其中,所述半静态HARQ-ACK码本中不包含目标下行传输对应的HARQ-ACK反馈信息,所述目标下行传输包括以下传输的至少一种:不满足处理时延要求的第一下行传输;与第一PDCCH之后的第二PDCCH相对应的第二下行传输,其中,所述半静态HARQ-ACK码本在所述第一PDCCH调度的PUSCH上传输。
- 根据权利要求1所述的传输方法,其中,所述第一下行传输包括由PDCCH调度的PDSCH、SPS PDSCH以及SPS PDSCH释放中的至少一种;所述第二下行传输包括由PDCCH调度的PDSCH以及SPS PDSCH释放中的至少一种。
- 根据权利要求1所述的传输方法,其中,在所述半静态HARQ-ACK码本中不包含所述第一下行传输对应的HARQ-ACK反馈信息时,按照以下方式,确定所述第一下行传输:将满足第一预设条件的下行传输,确定为所述第一下行传输;或者,将满足第二预设条件的下行传输,确定为所述第一下行传输;或者,将满足所述第一预设条件或所述第二预设条件的下行传输,确定为所述第一下行传输;或者,将同时满足所述第一预设条件和所述第二预设条件的下行传输,确定为所述第一下行传输。
- 根据权利要求3所述的传输方法,其中,所述第一预设条件包括:下行传输的结束符号晚于第一参考符号,所述第一参考符号为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的第一个符号、第一个下行符号或第一个灵活Flexible符号;或者,下行传输的结束符号或结束时刻晚于第一参考时刻,所述第一参考时刻为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的时刻;或者,下行传输的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T1时间;其中,所述T1为预先定义的值;或者,所述T1为根据配置确定的值;或者,所述T1为下行传输进行HARQ-ACK反馈的最小处理时延。
- 根据权利要求4所述的传输方法,其中,所述T1按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;N 1为根据μ 1以及终端能力确定的值;d 1,1为与下行传输的传输长度、映射类型和终端能力相关的值;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求3所述的传输方法,其中,所述第二预设条件包括:下行传输对应的PDCCH的结束符号晚于第二参考符号,其中,所述第 二参考符号为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的第一个符号、第一个下行符号或第一个Flexible符号;或者,下行传输对应的PDCCH的结束符号或结束时刻晚于第二参考时刻,所述第二参考时刻为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的时刻;或者,下行传输对应的PDCCH的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T2时间;其中,所述T2为预先定义的值;或者,所述T2为根据配置确定的值;或者,所述T2为一个下行传输的HARQ-ACK与其他信息进行复用传输的最小处理时延。
- 根据权利要求6所述的传输方法,其中,当承载半静态HARQ-ACK码本的上行信道为PUCCH时,所述T2按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;N 2为根据μ 2以及终端能力确定的值;在下行传输所对应的PDCCH触发了带宽部分BWP切换时,d 1,2为BWP切换所需时间,否则d 1,2=0;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求6所述的传输方法,其中,当承载半静态HARQ-ACK码本的上行信道为PUSCH时,所述T2按照以下任一公式计算得到:其中,μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH对应的PDCCH相对应的A-CSI-RS各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH所对应的PDCCH相对应的非周期信道状态信息参考信号A-CSI-RS各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;在PUSCH的第一个符号仅包含DMRS时,d 2,1=0,否则d 2,1=1;在PUSCH所对应的PDCCH触发了带宽部分BWP切换时,d 2,2为BWP切换所需时间,否则d 2,2=0;Z为非周期信道状态信息A-CSI对应的时延;d为PDCCH和被调度的PDSCH之间重叠的符号数;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求1~7中任一项所述的传输方法,其中,当半静态HARQ-ACK码本在PUCCH上传输时,如果存在多个下行传输的半静态HARQ-ACK码本需要同时在同一个PUCCH上传输,调度所述多个下行传输的PDCCH中的PUCCH资源指示域指示相同的PUCCH资源。
- 一种混合自动重传请求确认HARQ-ACK码本的传输方法,应用于基站,包括:接收半静态HARQ-ACK码本,其中,所述半静态HARQ-ACK码本不包含目标下行传输对应的HARQ-ACK反馈信息,所述目标下行传输包括以下传输的至少一种:不满足处理时延要求的第一下行传输;与第一PDCCH之后的第二PDCCH相对应的第二下行传输,其中,所述半静态HARQ-ACK码本在所述第一PDCCH调度的PUSCH上传输。
- 根据权利要求10所述的传输方法,其中,所述第一下行传输包括由PDCCH调度的PDSCH、SPS PDSCH以及SPS PDSCH释放中的至少一种;所述第二下行传输包括由PDCCH调度的PDSCH以及SPS PDSCH释放中的至少一种。
- 根据权利要求10所述的传输方法,其中,在接收所述半静态HARQ-ACK码本的步骤之前,还包括:确定所述半静态HARQ-ACK码本的长度。
- 根据权利要求12所述的传输方法,其中,在所述半静态HARQ-ACK码本中不包含所述第一下行传输对应的HARQ-ACK反馈信息时,进一步按照以下方式,确定所述第一下行传输:将满足第一预设条件的下行传输,确定为所述第一下行传输;或者,将满足第二预设条件的下行传输,确定为所述第一下行传输;或者,将满足所述第一预设条件或所述第二预设条件的下行传输,确定为所述 第一下行传输;或者,将同时满足所述第一预设条件和所述第二预设条件的下行传输,确定为所述第一下行传输。
- 根据权利要求13所述的传输方法,其中,所述第一预设条件包括:下行传输的结束符号晚于第一参考符号,所述第一参考符号为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的第一个符号、第一个下行符号或第一个灵活Flexible符号;或者,下行传输的结束符号或结束时刻晚于第一参考时刻,所述第一参考时刻为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的时刻;或者,下行传输的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T1时间;其中,所述T1为预先定义的值;或者,所述T1为根据配置确定的值;或者,所述T1为下行传输进行HARQ-ACK反馈的最小处理时延。
- 根据权利要求14所述的传输方法,其中,所述T1按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以 得到最大的T1值的子载波间隔的编号;N 1为根据μ 1以及终端能力确定的值;d 1,1为与下行传输的传输长度、映射类型和终端能力相关的值;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求13所述的传输方法,其中,所述第二预设条件包括:下行传输对应的PDCCH的结束符号晚于第二参考符号,其中,所述第二参考符号为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的第一个符号、第一个下行符号或第一个Flexible符号;或者,下行传输对应的PDCCH的结束符号或结束时刻晚于第二参考时刻,所述第二参考时刻为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的时刻;或者,下行传输对应的PDCCH的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T2时间;其中,所述T2为预先定义的值;或者,所述T2为根据配置确定的值;或者,所述T2为一个下行传输的HARQ-ACK与其他信息进行复用传输的最小处理时延。
- 根据权利要求16所述的传输方法,其中,当承载半静态HARQ-ACK码本的上行信道为PUCCH时,所述T2按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得 到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;N 2为根据μ 2以及终端能力确定的值;在下行传输所对应的PDCCH触发了带宽部分BWP切换时,d 1,2为BWP切换所需时间,否则d 1,2=0;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求16所述的传输方法,其中,当承载半静态HARQ-ACK码本的上行信道为PUSCH时,所述T2按照以下任一公式计算得到:其中,μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH对应的PDCCH相对应的A-CSI-RS各自对应的子载波间隔中的最小 的子载波间隔的编号,或μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH所对应的PDCCH相对应的非周期信道状态信息参考信号A-CSI-RS各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;在PUSCH的第一个符号仅包含DMRS时,d 2,1=0,否则d 2,1=1;在PUSCH所对应的PDCCH触发了带宽部分BWP切换时,d 2,2为BWP切换所需时间,否则d 2,2=0;Z为非周期信道状态信息A-CSI对应的时延;d为PDCCH和被调度的PDSCH之间重叠的符号数;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求10~17中任一项所述的传输方法,其中,当半静态HARQ-ACK码本在PUCCH上传输时,如果存在多个下行传输的半静态HARQ-ACK码本需要同时在同一个PUCCH上传输,调度所述多个下行传输的PDCCH中的PUCCH资源指示域指示相同的PUCCH资源。
- 一种终端,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序;所述收发机,用于发送半静态HARQ-ACK码本,其中,所述半静态HARQ-ACK码本中不包含目标下行传输对应的HARQ-ACK反馈信息,所述目标下行传输包括以下传输的至少一种:不满足处理时延要求的第一下行传输;与第一PDCCH之后的第二PDCCH相对应的第二下行传输,其中,所述半静态HARQ-ACK码本在所述第一PDCCH调度的PUSCH上传输。
- 如权利要求20所述的终端,其中,所述第一下行传输包括由PDCCH调度的PDSCH、SPS PDSCH以及SPS PDSCH释放中的至少一种;所述第二下行传输包括由PDCCH调度的PDSCH以及SPS PDSCH释放中的至少一种。
- 根据权利要求20所述的终端,其中,所述处理器,用于读取存储器中的程序,执行下列过程:在所述半静态HARQ-ACK码本中不包含所述第一下行传输对应的HARQ-ACK反馈信息时,在发送所述下行传输对应的半静态HARQ-ACK码本之前,进一步按照以下方式,确定所述第一下行传输:将满足第一预设条件的下行传输,确定为所述第一下行传输;或者,将满足第二预设条件的下行传输,确定为所述第一下行传输;或者,将满足所述第一预设条件或所述第二预设条件的下行传输,确定为所述第一下行传输;或者,将同时满足所述第一预设条件和所述第二预设条件的下行传输,确定为所述第一下行传输。
- 根据权利要求22所述的终端,其中,所述第一预设条件包括:下行传输的结束符号晚于第一参考符号,所述第一参考符号为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的第一个符号、第一个下行符号或第一个灵活Flexible符号;或者,下行传输的结束符号或结束时刻晚于第一参考时刻,所述第一参考时刻为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的时刻;或者,下行传输的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T1时间;其中,所述T1为预先定义的值;或者,所述T1为根据配置确定的值;或者,所述T1为下行传输进行HARQ-ACK反馈的最小处理时延。
- 根据权利要求23所述的终端,其中,所述T1按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应 的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;N 1为根据μ 1以及终端能力确定的值;d 1,1为与下行传输的传输长度、映射类型和终端能力相关的值;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求22所述的终端,其中,所述第二预设条件包括:下行传输对应的PDCCH的结束符号晚于第二参考符号,其中,所述第二参考符号为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的第一个符号、第一个下行符号或第一个Flexible符号;或者,下行传输对应的PDCCH的结束符号或结束时刻晚于第二参考时刻,所述第二参考时刻为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的时刻;或者,下行传输对应的PDCCH的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T2时间;其中,所述T2为预先定义的值;或者,所述T2为根据配置确定的值;或者,所述T2为一个下行传输的HARQ-ACK与其他信息进行复用传输的最小处理时延。
- 根据权利要求25所述的终端,其中,当承载半静态HARQ-ACK码本的上行信道为PUCCH时,所述T2按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;N 2为根据μ 2以及终端能力确定的值;在下行传输所对应的PDCCH触发了带宽部分BWP切换时,d 1,2为BWP切换所需时间,否则d 1,2=0;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求25所述的终端,其中,当承载半静态HARQ-ACK码本的上行信道为PUSCH时,所述T2按照以下任一公式计算得到:其中,μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载 波间隔的编号;μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH对应的PDCCH相对应的A-CSI-RS各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH所对应的PDCCH相对应的非周期信道状态信息参考信号A-CSI-RS各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;在PUSCH的第一个符号仅包含DMRS时,d 2,1=0,否则d 2,1=1;在PUSCH所对应的PDCCH触发了带宽部分BWP切换时,d 2,2为BWP切换所需时间,否则d 2,2=0;Z为非周期信道状态信息A-CSI对应的时延;d为PDCCH和被调度的PDSCH之间重叠的符号数;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求20~26中任一项所述的终端,其中,当半静态HARQ-ACK码本在PUCCH上传输时,如果存在多个下行传输的半静态HARQ-ACK码本需要同时在同一个PUCCH上传输,调度所述多个下行传输的PDCCH中的PUCCH资源指示域指示相同的PUCCH资源。
- 一种终端,包括:发送单元,用于发送半静态HARQ-ACK码本,其中,所述半静态HARQ-ACK码本中不包含目标下行传输对应的HARQ-ACK反馈信息,所述目标下行传输包括以下传输的至少一种:不满足处理时延要求的第一下行传输;与第一PDCCH之后的第二PDCCH相对应的第二下行传输,其中,所述半静态HARQ-ACK码本在所述第一PDCCH调度的PUSCH上传输。
- 一种基站,包括:收发机、存储器、处理器及存储在所述存储器上并可在所述处理器上运行的程序;所述收发机,用于接收半静态HARQ-ACK码本,其中,所述半静态HARQ-ACK码本不包含目标下行传输对应的HARQ-ACK反馈信息,所述目标下行传输包括以下传输的至少一种:不满足处理时延要求的第一下行传输;与第一PDCCH之后的第二PDCCH相对应的第二下行传输,其中,所述半静态HARQ-ACK码本在所述第一PDCCH调度的PUSCH上传输。
- 根据权利要求30所述的基站,其中,所述第一下行传输包括由PDCCH调度的PDSCH、SPS PDSCH以及SPS PDSCH释放中的至少一种;所述第二下行传输包括由PDCCH调度的PDSCH以及SPS PDSCH释放中的至少一种。
- 根据权利要求30所述的基站,其中,所述处理器,用于读取存储器中的程序,执行下列过程:在接收所述半静态HARQ-ACK码本之前,确定所述半静态HARQ-ACK码本的长度。
- 根据权利要求32所述的基站,其中,所述处理器,还用于在所述半静态HARQ-ACK码本中不包含所述第一下行传输对应的HARQ-ACK反馈信息时,进一步按照以下方式,确定所述第一下行传输:将满足第一预设条件的下行传输,确定为所述第一下行传输;或者,将满足第二预设条件的下行传输,确定为所述第一下行传输;或者,将满足所述第一预设条件或所述第二预设条件的下行传输,确定为所述第一下行传输;或者,将同时满足所述第一预设条件和所述第二预设条件的下行传输,确定为所述第一下行传输。
- 根据权利要求33所述的基站,其中,所述第一预设条件包括:下行传输的结束符号晚于第一参考符号,所述第一参考符号为:承载 HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的第一个符号、第一个下行符号或第一个灵活Flexible符号;或者,下行传输的结束符号或结束时刻晚于第一参考时刻,所述第一参考时刻为:承载HARQ-ACK码本的上行信道的起始符号的开始位置之前T1时间的时刻;或者,下行传输的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T1时间;其中,所述T1为预先定义的值;或者,所述T1为根据配置确定的值;或者,所述T1为下行传输进行HARQ-ACK反馈的最小处理时延。
- 根据权利要求34所述的基站,其中,所述T1按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 1为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T1值的子载波间隔的编号;N 1为根据μ 1以及终端能力确定的值;d 1,1为与下行传输的传输长度、映射类型和终端能力相关的值;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求33所述的基站,其中,所述第二预设条件包括:下行传输对应的PDCCH的结束符号晚于第二参考符号,其中,所述第二参考符号为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的第一个符号、第一个下行符号或第一个Flexible符号;或者,下行传输对应的PDCCH的结束符号或结束时刻晚于第二参考时刻,所述第二参考时刻为:承载HARQ-ACK的上行信道的起始符号的开始位置之前T2时间的时刻;或者,下行传输对应的PDCCH的结束符号或结束时刻与承载HARQ-ACK的上行信道的起始符号或起始时刻之间的时间间隔短于T2时间;其中,所述T2为预先定义的值;或者,所述T2为根据配置确定的值;或者,所述T2为一个下行传输的HARQ-ACK与其他信息进行复用传输的最小处理时延。
- 根据权利要求36所述的基站,其中,当承载半静态HARQ-ACK码本的上行信道为PUCCH时,所述T2按照以下任一公式计算得到:其中,当下行传输为由PDCCH调度的PDSCH时,μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为调度PDSCH的PDCCH、PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH释放时,μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为指示SPS PDSCH释放的PDCCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;和/或,当下行传输为SPS PDSCH时,μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 2为SPS PDSCH、以及PUCCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;N 2为根据μ 2以及终端能力确定的值;在下行传输所对应的PDCCH触发了带宽部分BWP切换时,d 1,2为BWP 切换所需时间,否则d 1,2=0;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求36所述的基站,其中,当承载半静态HARQ-ACK码本的上行信道为PUSCH时,所述T2按照以下任一公式计算得到:其中,μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 3为下行传输对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 4为下行传输和/或PUSCH对应的PDCCH、PUCCH以及PUSCH各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH对应的PDCCH相对应的A-CSI-RS各自对应的子载波间隔中的最小的子载波间隔的编号,或μ 5为下行传输和/或PUSCH对应的PDCCH、PUCCH、PUSCH以及与PUSCH所对应的PDCCH相对应的非周期信道状态信息参考信号A-CSI-RS各自对应的子载波间隔中可以得到最大的T2值的子载波间隔的编号;在PUSCH的第一个符号仅包含DMRS时,d 2,1=0,否则d 2,1=1;在PUSCH所对应的PDCCH触发了带宽部分BWP切换时,d 2,2为BWP切换所需时间,否则d 2,2=0;Z为非周期信道状态信息A-CSI对应的时延;d为PDCCH和被调度的PDSCH之间重叠的符号数;T c为NR系统中的基本时间单元;κ为LTE系统的基本时间单元与NR的基本时间单元之间的比率。
- 根据权利要求30~37中任一项所述的基站,其中,所述处理器,还用于当半静态HARQ-ACK码本在PUCCH上传输时,如果存在多个下行传输的半静态HARQ-ACK码本需要同时在同一个PUCCH上传输,则在调度所述多个下行传输的PDCCH中的PUCCH资源指示域中指示相同的PUCCH资源。
- 一种基站,包括:接收单元,用于接收半静态HARQ-ACK码本,其中,所述半静态HARQ-ACK码本不包含目标下行传输对应的HARQ-ACK反馈信息,所述目标下行传输包括以下传输的至少一种:不满足处理时延要求的第一下行传输;与第一PDCCH之后的第二PDCCH相对应的第二下行传输,其中,所述半静态HARQ-ACK码本在所述第一PDCCH调度的PUSCH上传输。
- 一种计算机可读存储介质,包括指令,当所述指令在处理器上运行时,使得所述处理器执行如权利要求1至19中任一项所述的混合自动重传请求确认码本的传输方法。
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