CN116095861A - Information transmission method, terminal and network side equipment - Google Patents
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- H04W72/1221—Wireless traffic scheduling based on age of data to be sent
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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
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- 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
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Abstract
The application discloses an information transmission method, a terminal and network side equipment, which belong to the technical field of communication, and the information transmission method in the embodiment of the application comprises the following steps: the method comprises the steps that a terminal receives Downlink Control Information (DCI) triggered once and sent by network side equipment; the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to an information transmission method, a terminal and network side equipment.
Background
The SPS HARQ-ACK delay mechanism can only implement more semi-static control of the network for SPS HARQ-ACK feedback, and may still cause SPS HARQ-ACKs to be discarded (e.g., based on SFI (Slot Format Indicator, slot format indication), multiplexing with scheduling request SR or channel state information CSI, etc.), or imbalance of resource load between slots (i.e., instant or sub-slots) (e.g., resources in the first uplink UL Slot/sub-Slot are occupied in a concentrated manner).
From the above, the existing information transmission scheme for SPS HARQ-ACK feedback has the problems of poor flexibility and reliability, inability to guarantee transmission performance, and the like.
Disclosure of Invention
The embodiment of the application provides an information transmission method, a terminal and network side equipment, which can solve the problems that the existing information transmission scheme for SPS HARQ-ACK feedback is poor in flexibility and reliability and cannot guarantee transmission performance.
In a first aspect, an information transmission method is provided, applied to a terminal, and the method includes:
the method comprises the steps that a terminal receives Downlink Control Information (DCI) triggered once and sent by network side equipment;
the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
In a second aspect, an information transmission method is provided, applied to a network side device, and the method includes:
The network equipment sends downlink control information DCI triggered once to the terminal;
the network side equipment determines reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receives the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
In a third aspect, there is provided an information transmission apparatus applied to a terminal, including:
the first receiving module is used for receiving the one-time triggering downlink control information DCI sent by the network side equipment;
the first execution module is used for determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
In a fourth aspect, an information transmission apparatus is provided, which is applied to a network side device, and includes:
a first sending module, configured to send downlink control information DCI triggered once to a terminal;
the second execution module is used for determining reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receiving the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
In a fifth aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.
A sixth aspect provides a terminal, including a processor and a communication interface, where the communication interface is configured to receive downlink control information DCI triggered once and sent by a network side device; the processor is used for determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit through the communication interface; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
In a seventh aspect, a network side device is provided, the network side device comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions implementing the steps of the method according to the second aspect when executed by the processor.
An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send downlink control information DCI triggered once to a terminal; the processor is used for determining reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receiving the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit through the communication interface according to the reference information; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
A ninth aspect provides an information transmission method, which is applicable to a terminal, including:
The terminal receives the downlink control information DCI which is sent by the network side equipment under the first condition and triggered once; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
the terminal retransmits the first HARQ-ACK codebook to the network side equipment according to the one-time triggering DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
In a tenth aspect, an information transmission method is provided, which is applicable to a network side device, and includes:
the network side equipment sends downlink control information DCI triggered once to the terminal under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
The network side equipment receives the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
An eleventh aspect provides an information transmission apparatus applicable to a terminal, comprising:
the second receiving module is used for receiving the one-time triggering downlink control information DCI sent by the network side equipment under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
a second sending module, configured to retransmit the first HARQ-ACK codebook to the network side device according to a one-time trigger DCI;
Wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
In a twelfth aspect, there is provided an information transmission apparatus applicable to a network-side device, including:
a third sending module, configured to send, under a first condition, downlink control information DCI triggered once to a terminal; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
a third receiving module, configured to receive the first HARQ-ACK codebook that is retransmitted by the terminal according to the one-time triggering DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
The first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
In a thirteenth aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the ninth aspect.
A fourteenth aspect provides a terminal, including a processor and a communication interface, where the communication interface is configured to receive downlink control information DCI triggered once sent by a network side device when at least one valid HARQ-ACK bit exists in a first HARQ-ACK codebook and satisfies a first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; the processor is configured to retransmit the first HARQ-ACK codebook to the network side device according to one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
In a fifteenth aspect, there is provided a network side device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the tenth aspect.
A sixteenth aspect provides a network side device, including a processor and a communication interface, where the processor is configured to send, in a first case, downlink control information DCI triggered once to a terminal through the communication interface; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; the communication interface is used for receiving the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
A seventeenth aspect provides a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method as described in the first aspect, or performs the steps of the method as described in the second aspect, or performs the steps of the method as described in the ninth aspect, or performs the steps of the method as described in the tenth aspect.
In an eighteenth aspect, there is provided a chip comprising a processor and a communication interface, the communication interface and the processor being coupled, the processor being for running a program or instructions, implementing a method as described in the first aspect, or implementing a method as described in the second aspect, or implementing a method as described in the ninth aspect, or implementing a method as described in the tenth aspect.
In a nineteenth aspect, there is provided a computer program/program product stored in a non-volatile storage medium, the computer program/program product being executable by at least one processor to implement the steps of the information transmission method as described in the first aspect, or the computer program/program product being executable by at least one processor to implement the steps of the information transmission method as described in the second aspect, or the computer program/program product being executable by at least one processor to implement the steps of the information transmission method as described in the ninth aspect, or the computer program/program product being executable by at least one processor to implement the steps of the information transmission method as described in the tenth aspect.
In the embodiment of the application, the terminal receives the one-time triggering downlink control information DCI sent by the network side equipment; the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit, or the first time unit is located after the second time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
Drawings
Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a schematic flow chart of an information transmission method according to an embodiment of the present application;
fig. 3 is a schematic diagram of a flow chart of an information transmission method according to an embodiment of the present application;
fig. 4 is a schematic application diagram of an information transmission method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an information transmission device according to an embodiment of the present application;
fig. 6 is a schematic diagram of a second information transmission device according to an embodiment of the present application;
Fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 8 is a schematic diagram of a terminal structure according to an embodiment of the present application;
fig. 9 is a schematic diagram of a network side device structure according to an embodiment of the present application;
fig. 10 is a flowchart of an information transmission method according to an embodiment of the present application;
fig. 11 is a flowchart of an information transmission method according to an embodiment of the present application;
fig. 12 is a schematic diagram of an information transmission device according to an embodiment of the present application;
fig. 13 is a schematic diagram of an information transmission device according to an embodiment of the present application;
fig. 14 is a second schematic diagram of a terminal structure according to an embodiment of the present application;
fig. 15 is a second schematic diagram of a network side device structure according to an embodiment of the present application.
Detailed Description
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE-Advanced (LTE-a) systems, but may also be used in other wireless communication systems, such asCode division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single-carrier frequency division multiple access (Single-carrier Frequency-Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may also be called a terminal Device or a User Equipment (UE), and the terminal 11 may be a terminal-side Device such as a mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a notebook (Personal Digital Assistant, PDA), a palm Computer, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet Device (Mobile Internet Device, MID), a Wearable Device (or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and the Wearable Device includes: smart watches, bracelets, headphones, eyeglasses, etc. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a node B, an evolved node B, an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, 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 following describes the contents related to the embodiments of the present application.
1. An SPS (semi-persistent scheduling) PDSCH (physical downlink shared channel) HARQ-ACK feedback mechanism in NR (new air interface);
SPS (Semi-persistent scheduling ) PDSCH transmission was introduced in NR Rel (release) -15: after activating downlink SPS transmissions, periodically initiated PDSCH transmissions that are not indicated by corresponding downlink control information, DCI, transmitted based on a predefined manner). For the downlink SPS transmission of NR Rel-15, the network side ensures that, in a certain service cell group configured for the terminal UE, at most only a single service cell is configured with a configuration item of SPS-Config, and the corresponding SPS PDSCH transmission interval is at least 10 ms. For SPS PDSCH transmissions ending in slot n, the UE feeds back HARQ-ACKs corresponding to the SPS PDSCH transmissions in slot n+k, where k is determined by the PDSCH-to-HARQ-timing indicator indication field in the DCI activating the SPS PDSCH transmissions.
In Rel-16 URLLC (ultra reliable low latency communication), in order to shorten the transmission delay of traffic data as much as possible, the network side may configure multiple SPS-Config configuration items that are simultaneously active for a single UE (a certain partial bandwidth BWP of a single serving cell may be configured with 8 items at the same time at most), and the corresponding SPS PDSCH transmission interval may be shortened to a minimum of a single slot. For some SPS-Config configured for the UE, after activation, the timing relationship between SPS PDSCH transmissions and their corresponding HARQ-ACK feedback is fully consistent with NR Rel-15.
2. SPS HARQ-ACK collision and recovery of a time division duplex TDD system in URLLC;
the downlink SPS transmissions are enhanced in URLLC Rel-16, where a single UE may support multiple SPS-configs simultaneously, and each SPS-Config may support a smaller period (to a single slot). Since each SPS-Config can only use a single HARQ-ACK feedback timing after activation, indicated by the latest activated or reactivated DCI, in a TDD system, there may be a case where a physical uplink control channel PUCCH transmission (or PUCCH resource carrying SPS HARQ-ACK) where a portion SPS PDSCH Occasion (opportunity) corresponding to the HARQ-ACK is located) collides with at least one Semi-static DL/SSB/CORESET # 0 symbol (i.e., semi-static downlink symbol, or synchronization signal block symbol, or control resource set 0 symbol) after activation or reactivation of the SPS, resulting in a failure of transmission, thereby resulting in dropping of SPS HARQ-ACKs; when the SPS transmission period is smaller, or the symbol ratio of Semi-static DL/SSB/coreset# 0 in the frame structure is larger, the probability of such collision is larger, so that the SPS PDSCH transmission performance is seriously affected (the network side can only perform blind scheduling on the corresponding SPS PDSCH when the SPS HARQ-ACK is not received, so that the system efficiency is reduced, or the corresponding SPS PDSCH is abandoned, so that a larger residual packet error rate is caused).
For this, an SPS HARQ-ACK delay scheme is currently introduced to solve this problem.
For the SPS HARQ-ACK transmission scheme, the following is briefly described:
for a certain SPS HARQ-ACK bit, if feedback is performed in an uplink UL slot/sub-slot (i.e. instant or sub-slot) n based on a corresponding SPS PDSCH and HARQ-ACK timing (i.e. HARQ-ACK timing, i.e. HARQ-ACK feedback timing relation, which may be understood as K1 indicated in a corresponding activated DCI), the UL slot/sub-slot n may be referred to as an initial slot corresponding to this SPS HARQ-ACK bit. If this SPS HARQ-ACK bit cannot be multiplexed with other uplink control information UCI (referring to other UCI than SPS HARQ-ACKs, including DG (dynamically scheduled) HARQ-ACKs or scheduling request SR or channel state information CSI) within AN initial slot, and determined SPS HARQ-ACK PUCCH resources (i.e. PUCCH SPS-PUCCH-AN-List-r16 or n1PUCCH-AN parameter configured HARQ-ACK PUCCH resources for which PUCCH SPS-PUCCH-AN-List-r16 is one List of SPS HARQ-ACK PUCCH resources, n1PUCCH-AN is used to indicate that there is a collision of a single SPS HARQ-ACK PUCCH resource, "AN" indicates ACK/NACK) with a Semi-stable DL/SSB/CORESET # 0 symbol, then the deferral operation needs to be triggered when the SPS corresponding to this SPS HARQ-ACK bit is configured with a deferral, for which it is required to find the next available or available PUSCH resources (time-initial slot is later than in the current-sub-PUCCH).
For one to a plurality of SPS HARQ-ACK bits triggering the deferral operation (the initial slot/sub-slot corresponding to each SPS HARQ-ACK bit may be different; hereinafter, the SPS HARQ-ACK bits can also be considered to be in the deferral process), the available PUCCH resource or the available PUSCH resource is searched for in each slot/sub-slot after the initial slot/sub-slot. When there is no collision between SPS HARQ-ACK bits (including SPS HARQ-ACK bits in the deferral procedure) and other UCI (referring to other UCI than SPS HARQ-ACK, including DG HARQ-ACK or SR or CSI) within a certain Candidate slot (Candidate slot-r 16 or n1PUCCH-AN parameter configured HARQ-ACK PUCCH resource), the determined SPS HARQ-ACK PUCCH resource (i.e. PUCCH SPS-PUCCH-AN-List-r16 or n1PUCCH-AN parameter configured) may be multiplexed with other UCI (referring to other UCI, including DG HARQ-ACK or SR or CSI) in addition to SPS HARQ-ACK, or when it is unable to be multiplexed with other UCI, the available PUCCH resource or available resource is found within this Candidate slot for (all) SPS HARQ-ACK bits in the deferral procedure, at this time, this Candidate slot is also regarded as a corresponding target (PUSCH-sub) for these Deferred SPS HARQ-bits in the deferral procedure.
Whether the defer is enabled or not can be independently configured for each SPS Config, and maximum deferral value (maximum delay value) can be further configured when the defer is configured. For a certain SPS HARQ-ACK bit, if it triggers a defer operation and no available PUCCH resource or available PUSCH resource has been found within the Candidate slot/sub-slot maximum deferral value from the initial slot/sub-slot, this SPS HARQ-ACK bit will be discarded because of a timeout.
3. HARQ-ACK retransmission mechanism in URLLC;
for deleted HARQ-ACKs in URLLC Rel-17 (e.g. low priority HARQ-ACKs because Rel-16intra-UE prioritization (intra-UE priority handling) was Drop or HARQ-ACKs because Rel-16cancellation indication (erasure indication) was deleted), two retransmission mechanisms are currently introduced at the same time: enhanced Type-3HARQ-ACK codebook and One-shot triggering of HARQ-ACK re-transmission (One-time triggered HARQ-ACK retransmission).
1. Regarding Enhanced Type-3HARQ-ACK codebook:
for Enhanced Type-3HARQ-ACK codebook, the main idea is to use the construction idea of Rel-16Type-3codebook (from the perspective of HARQ process, use the cyclic structure of CC (carrier or cell) -HARQ process-TB (Transport Block) to determine the HARQ-ACK bit sequence corresponding to the codebook, consider all downlink HARQ processes configured for each cell in all cells configured for UE), but report only the HARQ-ACK corresponding to the CC or the subset of HARQ processes, so that the reporting of the HARQ-ACK corresponding to a subset can be triggered as needed, and thus the smaller codebook size can be used to match the HARQ-ACK information needed to be retransmitted. Considering that the subsets required are different in different situations, the network may pre-configure a codebook or state list, each codebook or state in the list corresponding to a (different) subset (corresponding to a single Enhanced Type-3HARQ-ACK codebook), the network may select the best matching subset as required, and trigger the corresponding codebook or state. The maximum number of the Enhanced Type-3HARQ-ACK codebooks which can be simultaneously supported by the UE at present is 8.
2. Regarding One-shot triggering of HARQ-ACK re-transmission:
for One-shot triggering of HARQ-ACK re-transmission, the main idea is to trigger retransmission of the deleted HARQ-ACK codebook in a certain UL slot/sub-slot, and the trigger DCI indicates a new PUCCH resource in the UL slot/sub-slot to retransmit the deleted HARQ-ACK codebook as it is. Each DCI can only trigger retransmission of a single HARQ-ACK codebook. Only a single HARQ-ACK codebook can be triggered to be retransmitted within a single new UL slot. When the initial transmission HARQ-ACK (corresponding to the same physical layer priority) also exists in the new UL slot/sub-slot, the retransmission HARQ-ACK codebook is cascaded after the HARQ-ACK codebook corresponding to the initial transmission HARQ-ACK.
The information transmission method provided by the embodiment of the application is described in detail below by some embodiments and application scenarios thereof with reference to the accompanying drawings.
The embodiment of the application provides an information transmission method, which can be applied to a terminal, as shown in fig. 2, and includes:
step 21: the method comprises the steps that a terminal receives Downlink Control Information (DCI) triggered once and sent by network side equipment;
step 22: the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
The first time unit may be understood as a feedback time unit and the second time unit may be understood as a trigger time unit. The "the first time unit is the same as the second time unit" includes at least: the time units are the same, but the occupied positions are deviated; such as: the time units are the same, and the occupied symbol has an offset.
The determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI includes: the terminal determines the information of the second time unit according to the one-time trigger DCI; the terminal determines a first SPS HARQ-ACK according to the information of the second time unit; and the terminal constructs the feedback codebook based on the first SPS HARQ-ACK.
In this embodiment of the present application, the second time unit is a predefined time unit or a time unit indicated by one-time triggering DCI; wherein the predefined time units comprise any one of: the first time unit; a time unit in which DCI is received is triggered once; a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
The sending the feedback codebook to the network side device in the first time unit includes: the terminal determines PUCCH resource indication PRI information corresponding to Physical Uplink Control Channel (PUCCH) resources used in the first time unit; and the terminal uses the corresponding PUCCH resource to send the feedback codebook to the network side equipment in the first time unit according to the PRI information.
In an embodiment of the present application, the PRI information includes any one of the following: PRI information indicated by the last DCI in all DCIs received; PRI information indicated by the last one-time trigger DCI received; and if the PRI information indicated by all the received DCIs is consistent, the PRI information indicated by any DCI is determined.
Further, the information transmission method further includes: the terminal determines a priority limit condition corresponding to the first SPS HARQ-ACK; the terminal determines a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI, and the method comprises the following steps: the terminal determines a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI and the priority limiting condition; wherein the priority limit condition includes at least one of: SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority; SPS HARQ-ACK corresponds to any priority; and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
Wherein the second SPS HARQ-ACK comprises at least one of: initial SPS HARQ-ACK; delaying the SPS HARQ-ACK; the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation; the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
In particular, the delayed SPS HARQ-ACK may correspond to one to more time units (earlier than the first time unit).
Further, the first SPS HARQ-ACK further includes at least one of: starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK; and transmitting HARQ-ACK initially in the first time unit.
Wherein the initial transmission HARQ-ACK includes at least one of: when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH; an initial SPS HARQ-ACK corresponding to the first time unit; other DCIs indicate HARQ-ACK fed back in the first time unit; wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
In the embodiment of the application, the terminal receives the one-time triggering downlink control information DCI sent by the network side equipment; the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit, or the first time unit is located after the second time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The embodiment of the application also provides an information transmission method, which can be applied to network side equipment, as shown in fig. 3, and comprises the following steps:
step 31: the network equipment sends downlink control information DCI triggered once to the terminal;
step 32: the network side equipment determines reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receives the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
The first time unit may be understood as a feedback time unit and the second time unit may be understood as a trigger time unit. The "the first time unit is the same as the second time unit" includes at least: the time units are the same, but the occupied positions are deviated; such as: the time units are the same, and the occupied symbol has an offset.
The network side device determines reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and comprises the following steps: the network side equipment determines the information of the second time unit; and the network side equipment determines the reference information of the feedback codebook for receiving the first SPS HARQ-ACK according to the information of the second time unit.
In this embodiment of the present application, the second time unit is a predefined time unit or a time unit indicated by one-time triggering DCI; wherein the predefined time units comprise any one of: the first time unit; a time unit in which DCI is received is triggered once; a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
The receiving, in a first time unit, the feedback codebook fed back by the terminal according to the one-time trigger DCI according to the reference information includes: the network side equipment determines PUCCH resource indication PRI information corresponding to Physical Uplink Control Channel (PUCCH) resources used in the first time unit; and the network side equipment uses corresponding PUCCH resources to receive the feedback codebook fed back by the terminal according to the one-time trigger DCI in a first time unit according to the PRI information and the reference information.
In an embodiment of the present application, the PRI information includes any one of the following: PRI information indicated by the last DCI in all DCIs sent; PRI information indicated by the last one-time trigger DCI sent; and if the PRI information indicated by all the sent DCIs is consistent, the PRI information indicated by any DCI is determined.
Further, the information transmission method further includes: the network side equipment determines a priority limit condition corresponding to the first SPS HARQ-ACK; the network side device determines reference information of a feedback codebook for receiving a first SPS HARQ-ACK, and the reference information comprises: the network side equipment determines the reference information of a feedback codebook for receiving the first SPS HARQ-ACK according to the priority limit condition; wherein the priority limit condition includes at least one of: SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority; SPS HARQ-ACK corresponds to any priority; and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
Wherein the second SPS HARQ-ACK comprises at least one of: initial SPS HARQ-ACK; delaying the SPS HARQ-ACK; the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation; the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
In particular, the delayed SPS HARQ-ACK may correspond to one to more time units (earlier than the first time unit).
Further, the first SPS HARQ-ACK further includes at least one of: starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK; and transmitting HARQ-ACK initially in the first time unit.
Wherein the initial transmission HARQ-ACK includes at least one of: when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH; an initial SPS HARQ-ACK corresponding to the first time unit; other DCIs indicate HARQ-ACK fed back in the first time unit; wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
In the embodiment of the application, the downlink control information DCI is sent to the terminal through network side equipment in a one-time triggering manner; the network side equipment determines reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receives the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit, or the first time unit is located after the second time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
Here, the One-time triggering DCI in the embodiment of the present application refers to DCI for One-shot triggering of re-transmission.
The embodiment of the application also provides an information transmission method, as shown in fig. 10, including:
step 101: the terminal receives the downlink control information DCI which is sent by the network side equipment under the first condition and triggered once; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
Step 102: the terminal retransmits the first HARQ-ACK codebook to the network side equipment according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
The terminal retransmits the first HARQ-ACK codebook to the network side device according to the one-time trigger DCI, including: under a second condition, the terminal performs HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains the condition that the at least one delayed SPS HARQ-ACK bit meets a second condition; the terminal sends the final feedback codebook to the network side equipment according to the one-time trigger DCI; wherein the second condition comprises any one of: delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority; delaying SPS HARQ-ACK bit to correspond to any priority; and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
In this solution, it is also possible that the terminal transmits the triggered first HARQ-ACK codebook, and the at least one delayed SPS HARQ-ACK bit continues to perform the delay operation.
In the embodiment of the application, a terminal receives downlink control information DCI triggered once and sent by network side equipment under a first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; the terminal retransmits the first HARQ-ACK codebook to the network side equipment according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The embodiment of the application also provides an information transmission method, as shown in fig. 11, including:
step 111: the network side equipment sends downlink control information DCI triggered once to the terminal under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
step 112: the network side equipment receives the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
Further, the information transmission method further includes: the network side equipment determines that the terminal performs HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delay SPS HARQ-ACK bit under the second condition to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains at least one condition that the delay SPS HARQ-ACK bit meets a second condition; the network side equipment receives the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI, and the method comprises the following steps: the network side equipment receives the final feedback codebook sent by the terminal according to the one-time trigger DCI; wherein the second condition comprises any one of: delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority; delaying SPS HARQ-ACK bit to correspond to any priority; and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
In this solution, it is also possible that the terminal transmits the triggered first HARQ-ACK codebook, and the at least one delayed SPS HARQ-ACK bit continues to perform the delay operation.
In the embodiment of the application, the network side equipment sends the downlink control information DCI triggered once to the terminal under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; the network side equipment receives the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The information transmission method provided in the embodiment of the present application is illustrated below, and a Slot/sub-Slot is taken as an example of a time unit.
Aiming at the technical problems, the network side can control the feedback of the SPS HARQ-ACK more flexibly and dynamically by considering that the feedback of the SPS HARQ-ACK is actively triggered based on One-time triggering (retransmission) One-shot triggering of re-transmission, and the reliability of the feedback of the SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured; for the combination or interoperation of One-shot triggering of re-transmission and SPS HARQ-ACK transmission, no relevant scheme is provided at present, so that the two cannot be effectively combined to realize flexible, controllable, timely and reliable SPS HARQ-ACK feedback; therefore, the embodiment of the application provides an information transmission method, which mainly relates to: the SPS HARQ-ACK bit (corresponding to the second SPS HARQ-ACK) existing in the designated Slot (hereinafter referred to as the triggered Slot, corresponding to the second time unit) may be triggered based on One-shot triggering of re-transmission, and feedback is performed in the indicated Slot (hereinafter referred to as the feedback Slot, corresponding to the first time unit). The downlink assignment (DL assignment) DCI used to trigger HARQ-ACK feedback is hereinafter referred to as One-shot triggering DCI. Wherein: the following mainly considers the target or object of One-shot triggering DCI as the (released) SPS HARQ-ACK bit; the operation of triggering retransmission of other codebooks and piggybacking transmission Deferred SPS HARQ-ACK bits is described in the following embodiment one.
Specifically, the solution provided by the embodiment of the present application may include at least one of the following operations:
operation one: triggering the determination of Slot-Slot;
at present, the method mainly considers that the triggering Slot is the feedback Slot or the Slot before the feedback Slot (namely, the feedback Slot). Optionally, the Slot-Slot triggering may be a Slot-Slot after the Slot-Slot feedback, which is not limited herein.
When determining to trigger Slot/sub-Slot, any one of the following methods may be adopted:
method 1: triggering Slot-Slot to be a predefined Slot-Slot (corresponding to the predefined time unit);
at this time, one-shot triggering DCI does not need an explicit indication to trigger Slot/sub-Slot. One-shot triggering DCI may or may not schedule PDSCH (e.g., set the frequency domain resource allocation FDRA indication field to a special value to indicate non-scheduled PDSCH).
Any of the following methods may be further employed:
method 1-1: triggering the Slot to be feedback Slot;
the purpose or application scenario may be: when there is no dynamically scheduled DG HARQ-ACK (i.e., HARQ-ACK corresponding to DCI) in the feedback Slot, PUCCH resources used in the feedback Slot may be dynamically adjusted (before the adjustment, only Semi-statically configured SPS HARQ-ACK PUCCH resources or SR PUCCH resources or CSI PUCCH resources may be used, and may be Drop due to multiplexing with SR or CSI but actually unable to be transmitted, or delay release may be further due to collision of SPS HARQ-ACK PUCCH resources with invald symbol (illegal symbol, i.e., the aforementioned Semi-static DL/SSB/CORESET # 0 symbol), or Drop may be discarded due to reaching the upper limit corresponding to maximum deferral value), so as to ensure timely and reliable transmission of (Deferred) SPS HARQ-ACK.
Method 1-2: triggering the Slot to be the Slot where One-shot triggering DCI receives;
the purpose or application scenario may be: the trigger feedback specifies SPS HARQ-ACK bits present within the Slot or further includes SPS HARQ-ACK bits associated with these SPS HARQ-ACK bits (see "HARQ-ACK entry 2" below) to avoid Drop or further Defer, thereby ensuring timely and reliable transmission of SPS HARQ-ACKs.
The Slot-Slot where One-shot triggering DCI receives can be understood as: the end time of the physical downlink control channel PDCCH carrying One-shot triggering DCI is the UL slot/sub-slot, or the last UL slot/sub-slot in the UL slots overlapped with the PDCCH carrying One-shot triggering DCI.
Method 1-3: triggering the Slot is a Slot-Slot offset by M slots relative to a reference Slot (corresponding to the reference time unit);
purpose or application scenario: consistent with methods 1-2.
The reference Slot may be: and feeding back the Slot-Slot, or receiving the Slot-Slot where the One-shot triggering DCI is positioned.
When the reference Slot is a feedback Slot, M may be understood as the number of slots shifted in the elapsed time direction (i.e. to the left on the time axis), i.e. triggering a Slot as a feedback Slot (where m=0 may be considered), or a Slot preceding the feedback Slot and shifted by M slots; when the reference Slot is a Slot where One-shot triggering DCI receives, M may be understood as the number of slots that are offset in the elapsed time direction (i.e., left on the time axis) or in the future time direction (i.e., right on the time axis). The offset amount corresponding to the offset in a certain direction may be positive, and the offset amount corresponding to the offset in the opposite direction may be negative. M may be an integer, and may be 0, a positive integer, or a negative integer based on the aforementioned direction specification. M may be determined based on predefined rules or configured by higher layer signaling.
For example, when the reference Slot is a Slot-Slot where One-shot triggering DCI receives, M may be understood as a first (or earliest) UL Slot (assumed to be an intended time unit) meeting the DCI decoding delay requirement at a corresponding first time relative to an end time of One-shot triggering DCI, and a Slot-Slot offset where One-shot triggering DCI receives a Slot (assumed to be a reference time unit), that is, an offset of the intended time unit relative to the reference time unit, where M is a start time of the UL Slot at the corresponding first time, or a start time of PUCCH resources expected to be used in the UL Slot; triggering a Slot may be understood as the first (or earliest) UL Slot that satisfies the DCI decoding delay.
Method 2: triggering the Slot to be the Slot indicated by One-shot triggering DCI;
the purpose or application scenario may be: the method is basically consistent with the methods 1-1 to 1-3, and the difference is mainly that the One-shot triggering DCI can dynamically indicate to trigger the Slot/Slot, so that the flexibility is higher, but additional indication overhead is required to be introduced.
At this time, one-shot triggering DCI needs to explicitly indicate to trigger Slot/sub-Slot:
(1) When the DCI size (size, which may be understood as the corresponding number of bits) needs to be kept as (as much as possible) unchanged, one-shot triggering DCI may not schedule PDSCH, and at this time bits of some unused indication fields (e.g., the indication fields used when scheduling PDSCH) in One-shot triggering DCI may be used to indicate triggering of a Slot/sub-Slot.
(2) When the indication bit can be newly introduced into One-shot triggering DCI, it is not limited whether One-shot triggering DCI schedules PDSCH (for example, whether PDSCH is actually scheduled is determined based on the value of the FDRA indication field), and an indication field is newly introduced to indicate that Slot/sub-Slot is triggered.
When the trigger Slot is indicated, not only the absolute time position of the trigger Slot, for example, SFN (system frame number ) and Slot index in the radio frame, but also the offset N relative to the reference Slot may be indicated.
The reference Slot may be: and feeding back the Slot-Slot, or receiving the Slot-Slot where the One-shot triggering DCI is positioned.
When the reference Slot is a feedback Slot, N can be understood as the number of slots that are offset in the elapsed time direction (i.e., left on the time axis); when the reference Slot is a Slot where One-shot triggering DCI receives, N may be understood as the number of slots that are offset in the elapsed time direction (i.e., left on the time axis) or in the future time direction (i.e., right on the time axis). The offset amount corresponding to the offset in a certain direction may be positive, and the offset amount corresponding to the offset in the opposite direction may be negative. N may be an integer, and may be 0, a positive integer, or a negative integer based on the direction specification. N may be determined based on predefined rules or configured by higher layer signaling.
When applying any of the above methods, it is assumed that there is necessarily SPS HARQ-ACK bit (including Initial SPS HARQ-ACK, and/or Deferred SPS HARQ-ACK) within the trigger Slot/sub-Slot, and that the triggered SPS HARQ-ACK bit is deemed to have acquired a transmission opportunity without re-triggering or continuing with the transfer, regardless of the SPS HARQ-ACK that has been Drop before the trigger Slot/sub-Slot. Or, the UE does not expect that any SPS HARQ-ACK bit does not exist in the trigger Slot/sub-Slot; after receiving One-shot triggering DCI, the UE does not need to use SPS HARQ-ACK bits corresponding to (or triggered by) One-shot triggering DCI after feeding back Slot/sub-Slot (the UE can Drop these information, and maintenance is not needed).
And (2) operation II: triggering the determination of SPS HARQ-ACK and the construction of a codebook;
in the feedback Slot, when the HARQ-ACK codebook is organized based on One-shot triggering of re-transmission triggering, the organized codebook comprises at least One of the following (or at least comprises HARQ-ACK item 1, optionally comprises One or more other items):
HARQ-ACK term 1: triggering SPS HARQ-ACK bits existing in a Slot/sub-Slot may include at least one of:
HARQ-ACK subitem 1-1: all Initial SPS HARQ-ACKs;
Here, initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in a triggered Slot based on corresponding SPS PDSCH and HARQ-ACK timing (i.e., corresponding to K1 indicated in the activated DCI and corresponding to the above-mentioned HARQ-ACK feedback timing relationship), where SPS Config corresponding to a certain bit may or may not be configured with a deferer.
Optionally, when the trigger Slot is not a feedback Slot, one or more of the following in the Initial SPS HARQ-ACK may be removed, considering only the transmission of the remaining Initial SPS HARQ-ACKs (if any):
(1) Corresponding SPS Config does not configure Initial SPS HARQ-ACKs of the defer (assuming lower reliability requirements for these SPS HARQ-ACKs);
(2) The corresponding SPS Config is configured with a deferer, but the feedback Slot/sub-Slot has exceeded the Initial SPS HARQ-ACK of maximum deferral value of the corresponding SPS Config configuration (assuming these SPS HARQ-ACKs have timed out, less useful) relative to the trigger Slot/sub-Slot (as an Initial Slot/sub-Slot);
(3) The corresponding SPS Config is configured with the defer but before feeding back the Slot/sub-Slot, the Initial SPS HARQ-ACKs for the Target Slot/sub-Slot have been determined (assuming these SPS HARQ-ACKs have already acquired transmission opportunities).
HARQ-ACK subitem 1-2: all Deferred SPS HARQ-ACKs;
here Deferred SPS HARQ-ACK refers to SPS HARQ-ACK (within a Slot-Slot that is earlier than the triggering Slot) that has triggered or initiated the defer procedure, any one of which necessarily corresponds to some SPS Config that is defer-configured.
Optionally, when the trigger Slot is not a feedback Slot, the following Deferred SPS HARQ-ACK in the Deferred SPS HARQ-ACKs may be removed, considering only the remaining Deferred SPS HARQ-ACK (if any) transmissions:
(1) Feedback Slot-slots have exceeded Deferred SPS HARQ-ACKs of maximum deferral value of the corresponding SPS Config configuration relative to the corresponding Initial Slot-slots (assuming these SPS HARQ-ACKs have timed out, less useful);
(2) Deferred SPS HARQ-ACKs corresponding to the Target slots have been determined before the feedback slots (assuming that these SPS HARQ-ACKs have already acquired transmission opportunities).
HARQ-ACK term 2: starting from the next Slot of the triggering Slot-Slot until the feedback Slot-Slot is performed, and the SPS HARQ-ACK needing to be transmitted;
the SPS HARQ-ACK to be transmitted here may include SPS HARQ-ACK bits existing in each Slot (assumed to be a reference Slot) from the next Slot that triggers the Slot until the Slot is fed back. Wherein, referring to the determination of SPS HARQ-ACK bits existing in the Slot, the corresponding description in the HARQ-ACK sub-item 1-1 can be referred to, namely, referring to (all) Initial SPS HARQ-ACK corresponding to the Slot, and the triggering Slot in the description is replaced by the reference Slot; note that it is assumed that the "HARQ-ACK entry 1" is already included in the codebook of the organization, so Deferred SPS HARQ-ACK is not needed to be considered for the reference Slot/sub-Slot (to avoid repeated consideration), and only newly generated Initial SPS HARQ-ACK needs to be considered.
Only when the trigger Slot is not the feedback Slot, consider the "SPS HARQ-ACK to be transmitted" mentioned here.
Alternatively, only SPS HARQ-ACK bits present within L-1 slots from the next Slot to trigger Slot/sub-Slot may be considered, i.e. when "HARQ-ACK item 1" is already included in the codebook of the hypothetical organization, SPS HARQ-ACK bits present within a total of L slots from the trigger Slot/sub-Slot (when starting from the trigger Slot until the feedback Slot/sub-Slot is still less than L are considered to be subject to the actual number). L is determined based on predefined rules or is configured by higher layer signaling.
Optionally, for the above-mentioned several slots (L-1 slots or all slots up to the feedback Slot) starting from the next Slot of the trigger Slot, only the SPS HARQ-ACK bit corresponding to the reference SPS Config and/or the reference priority among the SPS HARQ-ACK bits existing in each Slot is considered, where the reference SPS Config (or the reference priority) is any SPS Config (or physical layer priority) corresponding to the SPS HARQ-ACK bit existing in the trigger Slot. For example, assuming that two SPS HARQ-ACK bits exist in the trigger Slot correspond to two SPS configs, for the "several slots", only SPS HARQ-ACK bits exist in each Slot that correspond to any one of the two SPS configs.
HARQ-ACK term 3: the initial transmission HARQ-ACK in the feedback Slot may include at least one of:
HARQ-ACK subitem 3-1: when One-shot triggering DCI schedules a PDSCH, HARQ-ACK corresponding to the scheduled PDSCH;
HARQ-ACK subitem 3-2: feeding back an Initial SPS HARQ-ACK corresponding to the Slot;
when the trigger Slot is the feedback Slot, the Initial SPS HARQ-ACK is the Initial SPS HARQ-ACK corresponding to the HARQ-ACK sub-item 1-1.
HARQ-ACK subitem 3-3: other DCIs indicate HARQ-ACK fed back in a feedback Slot/sub-Slot;
other DCIs include any DCIs that need to feed back corresponding HARQ-ACKs, such as downlink scheduling DCIs, DCIs that indicate SPS release, etc.
In organizing the codebook, the Initial transmission HARQ-ACK (if any; corresponding to "HARQ-ACK term 3") may construct a separate HARQ-ACK sub-codebook (assuming a first sub-codebook) based on Rel-16 rules, deferred SPS HARQ-ACK and/or Initial SPS HARQ-ACK (if any; corresponding to "HARQ-ACK term 2" and/or "HARQ-ACK term 3") of non-corresponding feedback Slot may construct a separate HARQ-ACK sub-codebook (assuming a second sub-codebook; may be unified as Deferred SPS HARQ-SPS ACK in HARQ-ACK defer to construct a HARQ-ACK (sub) codebook) based on Rel-16 rules. When both sub-codebooks exist, the first sub-codebook and the second sub-codebook may be concatenated to obtain the actually transmitted HARQ-ACK codebook, e.g., concatenating the second sub-codebook after the first sub-codebook.
And (3) operation three: determining feedback PUCCH resources;
when A pieces of One-shot triggering DCI (A >0; when the number of the pieces of One-piece is larger than One, the same HARQ-ACK codebook is required to be indicated based on the current Agreement, or the same HARQ-ACK reporting range is extended, B pieces of other DCI (HARQ-ACK corresponding to the requirement for feedback; B is more than or equal to 0) indicate the same feedback Slot, the following method can be adopted for determining PRI (PUCCH resource indication) corresponding to PUCCH resources used in the feedback Slot:
mode 1: always use the PRI indicated by the last DCI of all DCIs;
all DCIs herein refer to the above A+B DCIs. For the order of DCI, the ordering may follow the current rules. For example, the DCI after the start time of the corresponding PDCCH monitoring occasion may be considered to be received later, and the ordering may be performed based on the start time of the PDCCH monitoring occasion (Monitoring Occasion) at which the DCI is detected. When corresponding DCIs are received in a plurality of PDCCH monitoring occasions corresponding to the same starting moment, the precedence relationship among the DCIs can be further determined based on the cell index, for example, the DCIs with larger corresponding cell indexes are considered to be received later.
Mode 2: PRI indicated always by (last) One-shot triggering DCI is used;
In general, the PRI indicated by the last One-shot triggering DCI may be used. Alternatively, the PRIs indicated in A One-shot triggering DCI are required to be consistent, at which point the PRIs indicated in any One-shot triggering DCI are used.
Mode 3: the PRI indicated by all DCI is required to be consistent.
At this time, the PRI indicated in any DCI may be used.
Operation four: processing of physical layer priority;
in general, the above operations can be understood as: the physical layer priority indicated by One-shot triggering DCI indicates the feedback priority (i.e. the physical layer priority of the HARQ-ACK codebook transmitted in the feedback Slot or the physical layer priority corresponding to the PUCCH carrying the HARQ-ACK codebook), and the trigger priority (i.e. the physical layer priority corresponding to the SPS HARQ-ACK bit triggering the transmission (i.e. the SPS HARQ-ACK bit corresponding to the physical layer priority indicated in the DCI only triggered; the situation corresponding to the current scheme). The physical layer priority corresponding to a certain SPS HARQ-ACK may be determined by its corresponding SPS Config (specifically, in the higher layer configuration parameters of the SPS Config, the physical layer priority may be included).
Optionally, the above operations may be further extended to SPS HARQ-ACK triggering scenarios that cross physical layer priorities (i.e., do not require that the triggering priority be the same as the feedback priority, or that the physical layer priority corresponding to the SPS HARQ-ACK bit of the triggering transmission must be the same as the physical layer priority indicated by One-shot triggering DCI).
Specifically, assuming that based on the indication in One-shot triggering DCI, or a predefined rule (e.g., specifying a corresponding default physical layer priority, such as a low priority, when there is no explicit indication in the DCI), the feedback priority (i.e., the physical layer priority of the HARQ-ACK codebook transmitted within the feedback Slot/sub-Slot, or the physical layer priority corresponding to the PUCCH carrying this HARQ-ACK codebook) may be determined, specifically, any One of the following priority restriction schemes may be used to determine the first SPS HARQ-ACK in the foregoing scheme (i.e., the following scheme corresponds to the foregoing priority restriction condition):
scheme 1: SPS HARQ-ACKs in the operations described above require corresponding feedback priorities (i.e., require corresponding to the first priority);
for example, "operation two: in the determination of triggering SPS HARQ-ACK and the construction of codebook ", only SPS HARQ-ACK corresponding to the feedback priority is considered.
Scheme 2: SPS HARQ-ACKs in the above operations may correspond to any priority;
the term "corresponding to any priority" as referred to herein is understood to mean that the physical layer priority corresponding to SPS HARQ-ACKs is not concerned, and that the processing is unified, for example, SPS HARQ-ACKs corresponding to both high priority and low priority are included in the processing range.
At this time, the above operations may be directly used.
Alternatively, considering that it is currently generally considered that when a high priority HARQ-ACK and a low priority HARQ-ACK are multiplexed in the same PUCCH, both are encoded separately, the following adjustments may be introduced: "operation two: triggering the determination of SPS HARQ-ACK and the construction of codebook, when the codebook is organized, the physical layer priorities are differentiated to respectively construct corresponding HARQ-ACK sub-codebooks, for example, the HARQ-ACK sub-codebooks corresponding to high priorities are constructed based on the HARQ-ACK (if present) corresponding to high priorities, the HARQ-ACK sub-codebooks corresponding to low priorities are constructed based on the HARQ-ACK (if present) corresponding to low priorities, and the HARQ-ACK sub-codebooks of different physical layer priorities are independently coded.
Scheme 3: the physical layer priority requirement corresponding to the SPS HARQ-ACK in each operation is not lower than the feedback priority (namely, the physical layer priority requirement corresponding to the first SPS HARQ-ACK is higher than or equal to the first priority);
the term "the corresponding physical layer priority is not lower than the feedback priority" as used herein may be understood that when feedback of SPS HARQ-ACK corresponding to a certain physical layer priority is triggered, feedback is also performed by SPS HARQ-ACK that needs to be guaranteed to be higher in priority.
When the corresponding physical layer priority is not lower than the feedback priority or later, and the HARQ-ACK of the operation only corresponds to the single physical layer priority, if the single physical layer priority is the feedback priority, the operation corresponding to the scheme 1 can be adopted; if the single physical layer priority is other than the feedback priority, the corresponding operation of scheme 2 may be followed.
When the application "the corresponding physical layer priority is not lower than the feedback priority" or later, the HARQ-ACK of the operation corresponds to more than one physical layer priority (i.e., corresponds to multiple physical layer priorities), then the operation corresponding to scheme 2 may be followed.
The foregoing schemes provided in the embodiments of the present application are illustrated below.
For example, in fig. 4 (which may illustrate One-shot triggering of re-transmission to acquire (released) SPS HARQ-ACK), SPS HARQ-ACK corresponding to SPS PDSCH transmitted within Slot 1 is expected to be transmitted within Slot 5 based on SPS PDSCH and HACK-ACK timing, i.e., slot 5 is taken as an initial Slot. However, SPS HARQ-ACK PUCCH resources determined in Slot 5 cannot be transmitted due to collision with semi-persistent downlink symbols. Assuming that the SPS Config corresponding to the SPS PDSCH is configured to turn on or apply the SPS HARQ-ACK transmission mechanism, when the scheme of the present invention is not applied, based on the SPS HARQ-ACK transmission mechanism, the SPS HARQ-ACK corresponding to the SPS PDSCH is expected to be delayed to be transmitted in Slot 8. After the scheme of the invention is introduced, based on the realization of the network side equipment, one-time trigger DCI (Slot 6 is used as a trigger Slot or a second time unit) can be sent to the terminal in Slot 6, so as to trigger the terminal to feed back Deferred SPS HARQ-ACK (namely SPS HARQ-ACK corresponding to the SPS PDSCH) in Slot 7. After the terminal feeds back the SPS HARQ-ACK corresponding to the SPS PDSCH based on the indication of the one-time trigger DCI in Slot 7, the terminal does not need to continue to perform the defer operation for the SPS HARQ-ACK corresponding to the SPS PDSCH.
Specifically, in fig. 4, PUCCH resources occupied by SPS HARQ-ACK corresponding to SPS PDSCH transmitted in Slot 1 in its corresponding initial Slot are triggered by collision with Semi-static DL symbol, and when the technical scheme corresponding to the present invention is not introduced, based on SPS HARQ-ACK symbol mechanism, delay is expected to transmit in Slot 8, and through the technical scheme corresponding to the present invention, transmission in Slot 7 is enabled, thereby shortening feedback delay.
In fig. 4, K1 represents an offset between a time unit (e.g., a time slot or a sub-slot) where the SPS PDSCH is received and a time unit where the corresponding SPS HARQ-ACK is initially fed back, or K1 represents an offset between a time unit (e.g., a time slot or a sub-slot) where the DCI is triggered once and a time unit where the HARQ-ACK is fed back, where "D" represents downlink and "U" represents uplink.
Embodiment one: (DCI transmission) triggers retransmission of other codebooks and piggybacks transmission Deferred SPS HARQ-ACK bits;
when at least One valid HARQ-ACK bit (i.e., not including the padding negative acknowledgement NACK) in a certain HARQ-ACK codebook (corresponding to the first HARQ-ACK codebook) constructed in a certain Slot/sub-Slot n (corresponding to the third time unit) satisfies any One of the following conditions (corresponding to the first condition), one-shot triggering of re-transmission may be used to trigger retransmission of the HARQ-ACK codebook:
(1) Not SPS HARQ-ACK bits;
(2) Is SPS HARQ-ACK bit, but the corresponding SPS Config (namely SPS configuration item) is not configured with a defer;
(3) For SPS HARQ-ACK bits, the corresponding SPS Config is configured with a deferer, but the Defer is not triggered;
(4) For SPS HARQ-ACK bits, the corresponding SPS Config is configured with a Defer triggered and Slot/sub-Slot n (corresponding to the third time unit) is determined as Target Slot/sub-Slot (corresponding to the Target time unit).
The HARQ-ACK codebook may not be actually transmitted or actually transmitted due to a related protocol mechanism (for example, the uplink-UE UCI multiplexing (or priority processing), the erasure indication Cancellation indication, etc. are deleted) by SFI, UCI multiplexing in UE, but the network side fails to detect or fails to detect, etc., and at this time, the network side may trigger retransmission of the HARQ-ACK codebook by using One-shot triggering of re-transmission, which corresponds to the above-mentioned sending of the One-time triggered downlink control information DCI to the terminal.
It will be appreciated that when any valid HARQ-ACK bit (i.e., excluding the padding NACK) in a certain HARQ-ACK codebook within a certain Slot/sub-Slot is an SPS HARQ-ACK bit and is triggered or continued by a Defer, the HARQ-ACK codebook within the Slot/sub-Slot does not correspond to the conventional Case for which One-shot triggering of re-transmission is applicable (here, the conventional Case is that the HARQ-ACK codebook has acquired a transmission opportunity within a certain Slot/sub-Slot but is eventually deleted), only is transmitted with delay, and thus retransmission of the HARQ-ACK codebook cannot be triggered using One-shot triggering of re-transmission.
When One-shot triggering DCI triggers a certain HARQ-ACK codebook (i.e. "other codebook", corresponding to the first HARQ-ACK codebook described above) to report in the feedback Slot, if at least One Deferred SPS HARQ-ACK bit satisfying the physical layer priority condition (corresponding to the second condition described above) is present in the feedback Slot, the triggered HARQ-ACK codebook may be used as DG HARQ-ACK, and is used for performing HARQ-ACK multiplexing with the at least One Deferred SPS HARQ-ACK bit, and performing subsequent UCI multiplexing or priority operations as needed. In this scheme, it is also possible to: the terminal transmits the triggered HARQ-ACK codebook while the at least one delayed SPS HARQ-ACK bit continues to perform a delay operation.
The physical layer priority condition may be any of the following (feedback priorities may be similar see the foregoing description):
(1) Corresponding feedback priority (corresponding to the second priority described above);
(2) Corresponding to any priority;
(3) The corresponding physical layer priority is not lower than the feedback priority.
For the above case, when the codebook in the Slot/sub-Slot is organized:
(1) The triggered HARQ-ACK codebook may be used as a first sub-codebook. When the initial transmission HARQ-ACK also exists in the feedback Slot, the triggered HARQ-ACK codebook can be cascaded after the codebook corresponding to the initial transmission HARQ-ACK, and a first sub-codebook is output.
(2) The at least one Deferred SPS HARQ-ACK bit may construct the second sub-codebook based on predefined rules.
And then, cascading the first sub-codebook and the second sub-codebook to obtain a codebook in the feedback Slot, for example, cascading the second sub-codebook after the first sub-codebook.
By the above, the scheme provided by the embodiment of the application gives a feasible implementation scheme for the combination or the interoperation of One-shot triggering of re-transmission and SPS HARQ-ACK transmission, so that the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
It should be noted that, in the information transmission method provided in the embodiment of the present application, the execution body may be an information transmission device, or a control module in the information transmission device for executing the information transmission method. In the embodiment of the present application, an information transmission device is described by taking an example in which the information transmission device performs an information transmission method.
An embodiment of the present application provides an information transmission device, which is applicable to a terminal, as shown in fig. 5, including:
a first receiving module 51, configured to receive one-time triggering downlink control information DCI sent by a network side device;
A first execution module 52, configured to determine a feedback codebook of a first semi-persistent scheduling hybrid automatic repeat request, SPS HARQ-ACK according to the one-time trigger DCI; transmitting the feedback codebook to the network side equipment in a first time unit;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
The determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI includes: determining information of the second time unit according to the one-time trigger DCI; determining a first SPS HARQ-ACK according to the information of the second time unit; the feedback codebook is constructed based on the first SPS HARQ-ACK.
In this embodiment of the present application, the second time unit is a predefined time unit or a time unit indicated by one-time triggering DCI; wherein the predefined time units comprise any one of: the first time unit; a time unit in which DCI is received is triggered once; a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
The sending the feedback codebook to the network side device in the first time unit includes: determining Physical Uplink Control Channel (PUCCH) resource indication (PRI) information corresponding to PUCCH resources used in the first time unit; and according to the PRI information, sending the feedback codebook to the network side equipment in the first time unit by using the corresponding PUCCH resource.
In an embodiment of the present application, the PRI information includes any one of the following: PRI information indicated by the last DCI in all DCIs received; PRI information indicated by the last one-time trigger DCI received; and if the PRI information indicated by all the received DCIs is consistent, the PRI information indicated by any DCI is determined.
Further, the information transmission device further includes: a first determining module, configured to determine a priority constraint condition corresponding to the first SPS HARQ-ACK; the determining the feedback codebook of the first SPS HARQ-ACK according to the one-time triggering DCI includes: determining a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI and the priority limiting condition; wherein the priority limit condition includes at least one of: SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority; SPS HARQ-ACK corresponds to any priority; and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
Wherein the second SPS HARQ-ACK comprises at least one of: initial SPS HARQ-ACK; delaying the SPS HARQ-ACK; the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation; the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
Further, the first SPS HARQ-ACK further includes at least one of: starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK; and transmitting HARQ-ACK initially in the first time unit.
Wherein the initial transmission HARQ-ACK includes at least one of: when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH; an initial SPS HARQ-ACK corresponding to the first time unit; other DCIs indicate HARQ-ACK fed back in the first time unit; wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
In the embodiment of the application, the downlink control information DCI is triggered once and sent by the network side equipment; determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit, or the first time unit is located after the second time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The information transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.
The information transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment corresponding to fig. 2, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.
The embodiment of the application also provides an information transmission device, which can be applied to network side equipment, as shown in fig. 6, including:
a first sending module 61, configured to send downlink control information DCI triggered once to a terminal;
a second execution module 62, configured to determine reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request, SPS, HARQ-ACK, and receive, in a first time unit, the feedback codebook according to the one-time triggering DCI feedback by the terminal according to the reference information;
Wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
Wherein the determining the reference information of the feedback codebook for receiving the first semi-persistent scheduling hybrid automatic repeat request acknowledgement SPS HARQ-ACK includes: determining information of the second time unit; and determining the reference information of a feedback codebook for receiving the first SPS HARQ-ACK according to the information of the second time unit.
In this embodiment of the present application, the second time unit is a predefined time unit or a time unit indicated by one-time triggering DCI; wherein the predefined time units comprise any one of: the first time unit; a time unit in which DCI is received is triggered once; a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
The receiving, in a first time unit, the feedback codebook fed back by the terminal according to the one-time trigger DCI according to the reference information includes: determining Physical Uplink Control Channel (PUCCH) resource indication (PRI) information corresponding to PUCCH resources used in the first time unit; and according to the PRI information and the reference information, receiving the feedback codebook fed back by the terminal according to the one-time trigger DCI in a first time unit by using corresponding PUCCH resources.
In an embodiment of the present application, the PRI information includes any one of the following: PRI information indicated by the last DCI in all DCIs sent; PRI information indicated by the last one-time trigger DCI sent; and if the PRI information indicated by all the sent DCIs is consistent, the PRI information indicated by any DCI is determined.
Further, the information transmission device further includes: a second determining module, configured to determine a priority constraint condition corresponding to the first SPS HARQ-ACK; the determining the reference information of the feedback codebook for receiving the first SPS HARQ-ACK includes: determining reference information of a feedback codebook for receiving the first SPS HARQ-ACK according to the priority limit condition; wherein the priority limit condition includes at least one of: SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority; SPS HARQ-ACK corresponds to any priority; and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
Wherein the second SPS HARQ-ACK comprises at least one of: initial SPS HARQ-ACK; delaying the SPS HARQ-ACK; the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation; the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
Further, the first SPS HARQ-ACK further includes at least one of: starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK; and transmitting HARQ-ACK initially in the first time unit.
Wherein the initial transmission HARQ-ACK includes at least one of: when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH; an initial SPS HARQ-ACK corresponding to the first time unit; other DCIs indicate HARQ-ACK fed back in the first time unit; wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
In the embodiment of the application, downlink control information DCI is triggered once by sending the DCI to a terminal; determining reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receiving the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit, or the first time unit is located after the second time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The information transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.
The information transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment corresponding to fig. 3, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.
Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 70, including a processor 71, a memory 72, and a program or an instruction stored in the memory 72 and capable of running on the processor 71, where, for example, the communication device 70 is a terminal, the program or the instruction is executed by the processor 71 to implement each process of any of the terminal side method embodiments described above, and achieve the same technical effects. When the communication device 70 is a network-side device, the program or the instruction when executed by the processor 71 implements the processes of any of the foregoing network-side device-side method embodiments, and the same technical effects can be achieved, so that repetition is avoided and no further description is given here.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving the one-time triggering downlink control information DCI sent by the network side equipment; the processor is used for determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit through the communication interface; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit. The terminal embodiment corresponds to the terminal-side method embodiment corresponding to fig. 2, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 8 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.
The terminal 80 includes, but is not limited to: at least some of the components of the radio frequency unit 81, the network module 82, the audio output unit 83, the input unit 84, the sensor 85, the display unit 86, the user input unit 87, the interface unit 88, the memory 89, and the processor 810.
Those skilled in the art will appreciate that the terminal 80 may also include a power source (e.g., a battery) for powering the various components, which may be logically connected to the processor 810 by a power management system, such as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be understood that in the embodiment of the present application, the input unit 84 may include a graphics processor (Graphics Processing Unit, GPU) 841 and a microphone 842, and the graphics processor 841 processes image data of still pictures or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 86 may include a display panel 861, and the display panel 861 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 87 includes a touch panel 871 and other input devices 872. The touch panel 871 is also called a touch screen. The touch panel 871 may include two parts, a touch detection device and a touch controller. Other input devices 872 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In this embodiment, the radio frequency unit 81 receives downlink data from the network side device and then processes the downlink data with the processor 810; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 81 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 89 may be used to store software programs or instructions as well as various data. The memory 89 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 89 may include a high-speed random access Memory, and may also include a nonvolatile Memory, wherein the nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable Programmable ROM (EPROM), an Electrically Erasable Programmable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.
The processor 810 may include one or more processing units; alternatively, the processor 810 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 810.
The radio frequency unit 81 is configured to receive one-time triggering downlink control information DCI sent by a network side device;
a processor 810, configured to determine a feedback codebook of a first semi-persistent scheduling hybrid automatic repeat request, SPS, HARQ-ACK according to the one-time trigger DCI; transmitting the feedback codebook to the network side equipment through a radio frequency unit 81 in a first time unit;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
In the embodiment of the application, the terminal receives the one-time triggering downlink control information DCI sent by the network side equipment; the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit, or the first time unit is located after the second time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
Optionally, the determining, according to the one-time triggering DCI, a feedback codebook of the SPS HARQ-ACK for the first semi-persistent scheduling hybrid automatic repeat request response includes:
determining information of the second time unit according to the one-time trigger DCI;
determining a first SPS HARQ-ACK according to the information of the second time unit;
the feedback codebook is constructed based on the first SPS HARQ-ACK.
Optionally, the second time unit is a predefined time unit or a time unit indicated by one-time triggering DCI;
wherein the predefined time units comprise any one of:
the first time unit;
a time unit in which DCI is received is triggered once;
a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
Optionally, the sending, in the first time unit, the feedback codebook to the network side device through the radio frequency unit 81 includes:
determining Physical Uplink Control Channel (PUCCH) resource indication (PRI) information corresponding to PUCCH resources used in the first time unit;
and according to the PRI information, using the corresponding PUCCH resource to send the feedback codebook to the network side equipment through the radio frequency unit 81 in the first time unit.
Optionally, the PRI information includes any one of the following:
PRI information indicated by the last DCI in all DCIs received;
PRI information indicated by the last one-time trigger DCI received;
and if the PRI information indicated by all the received DCIs is consistent, the PRI information indicated by any DCI is determined.
Optionally, the processor 810 is further configured to:
determining a priority limit condition corresponding to the first SPS HARQ-ACK;
the determining the feedback codebook of the first SPS HARQ-ACK according to the one-time triggering DCI includes:
determining a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI and the priority limiting condition;
wherein the priority limit condition includes at least one of:
SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority;
SPS HARQ-ACK corresponds to any priority;
and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
Optionally, the second SPS HARQ-ACK includes at least one of:
initial SPS HARQ-ACK;
delaying the SPS HARQ-ACK;
the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation;
The delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
Optionally, the first SPS HARQ-ACK further includes at least one of:
starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK;
and transmitting HARQ-ACK initially in the first time unit.
Optionally, the initial transmission HARQ-ACK includes at least one of:
when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH;
an initial SPS HARQ-ACK corresponding to the first time unit;
other DCIs indicate HARQ-ACK fed back in the first time unit;
wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
By the above, the scheme provided by the embodiment of the application gives a feasible implementation scheme for the combination or the interoperation of One-shot triggering of re-transmission and SPS HARQ-ACK transmission, so that the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending the one-time triggering downlink control information DCI to the terminal; the processor is used for determining reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receiving the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit through the communication interface according to the reference information; wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit. The network side device embodiment corresponds to the network side device method embodiment corresponding to fig. 3, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.
Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 9, the network device 90 includes: an antenna 91, a radio frequency device 92, a baseband device 93. The antenna 91 is connected to a radio frequency device 92. In the uplink direction, the radio frequency device 92 receives information via the antenna 91, and transmits the received information to the baseband device 93 for processing. In the downlink direction, the baseband device 93 processes information to be transmitted, and transmits the processed information to the radio frequency device 92, and the radio frequency device 92 processes the received information and transmits the processed information through the antenna 91.
The above-described band processing means may be located in the baseband apparatus 93, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 93, and the baseband apparatus 93 includes a processor 94 and a memory 95.
The baseband device 93 may, for example, comprise at least one baseband board on which a plurality of chips are disposed, as shown in fig. 9, where one chip, for example, a processor 94, is connected to the memory 95 to invoke a program in the memory 95 to perform the network device operations shown in the above method embodiment.
The baseband device 93 may also include a network interface 96 for interacting with the radio frequency device 92, such as a common public radio interface (common public radio interface, CPRI for short).
Specifically, the network side device in the embodiment of the application further includes: instructions or programs stored in the memory 95 and executable on the processor 94, the processor 94 invokes the instructions or programs in the memory 95 to perform the methods performed by the modules shown in fig. 6 and achieve the same technical effects, and are not repeated here.
An embodiment of the present application provides an information transmission device, which is applicable to a terminal, as shown in fig. 12, including:
A second receiving module 121, configured to receive the downlink control information DCI triggered once and sent by the network side device under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
a second sending module 122, configured to retransmit the first HARQ-ACK codebook to the network side device according to a one-time trigger DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
Wherein, retransmitting the first HARQ-ACK codebook to the network side device according to the one-time triggering DCI, including: under the condition that at least one delayed SPS HARQ-ACK bit exists in a feedback time unit corresponding to a second first HARQ-ACK codebook and meets a second condition, carrying out HARQ-ACK multiplexing on the first HARQ-ACK codebook and the at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains the condition that the at least one delayed SPS HARQ-ACK bit meets a second condition; sending the final feedback codebook to the network side equipment according to the one-time trigger DCI; wherein the second condition comprises any one of: delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority; delaying SPS HARQ-ACK bit to correspond to any priority; and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
In the embodiment of the application, the downlink control information DCI is triggered once by receiving the downlink control information DCI sent by the network side equipment under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; retransmitting the first HARQ-ACK codebook to the network side equipment according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The information transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.
The information transmission device provided in the embodiment of the present application can implement each process implemented by the method embodiment corresponding to fig. 10, and achieve the same technical effects, so that repetition is avoided, and no further description is provided herein.
The embodiment of the application also provides an information transmission device, which can be applied to network side equipment, as shown in fig. 13, including:
a third sending module 131, configured to send, in the first case, one-time triggering downlink control information DCI to the terminal; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
A third receiving module 132, configured to receive the first HARQ-ACK codebook that the terminal retransmits according to a one-time trigger DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
Further, the information transmission device further includes: a third determining module, configured to determine that, in the second case, the terminal performs HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains at least one condition that the delay SPS HARQ-ACK bit meets a second condition; the receiving the first HARQ-ACK codebook of the DCI retransmission triggered by the terminal at one time includes: receiving the final feedback codebook sent by the terminal according to the one-time trigger DCI; wherein the second condition comprises any one of: delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority; delaying SPS HARQ-ACK bit to correspond to any priority; and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
In the embodiment of the application, downlink control information DCI is triggered once and sent to a terminal under a first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; receiving the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
The information transmission device in the embodiment of the present application may be a device, a device with an operating system or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.
The information transmission device provided in this embodiment of the present application can implement each process implemented by the method embodiment corresponding to fig. 11, and achieve the same technical effects, so that repetition is avoided, and no further description is given here.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving the downlink control information DCI which is sent by the network side equipment under the first condition and triggered once; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; the processor is configured to retransmit the first HARQ-ACK codebook to the network side device according to one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit. The terminal embodiment corresponds to the terminal-side method embodiment corresponding to fig. 10, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 14 is a schematic hardware structure of a terminal implementing an embodiment of the present application.
The terminal 140 includes, but is not limited to: at least some of the components of the radio frequency unit 141, the network module 142, the audio output unit 143, the input unit 144, the sensor 145, the display unit 146, the user input unit 147, the interface unit 148, the memory 149, and the processor 1410.
Those skilled in the art will appreciate that the terminal 140 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 1410 by a power management system to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 14 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 144 may include a graphics processor (Graphics Processing Unit, GPU) 1441 and a microphone 1442, the graphics processor 1441 processing image data of still pictures or video obtained by an image capture device (e.g., a camera) in a video capture mode or an image capture mode. The display unit 146 may include a display panel 1461, and the display panel 1461 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 147 includes a touch panel 1471 and other input devices 1472. Touch panel 1471, also known as a touch screen. The touch panel 1471 may include two parts, a touch detection device and a touch controller. Other input devices 1472 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In this embodiment, after receiving downlink data from a network side device, the radio frequency unit 141 processes the downlink data with the processor 1410; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 141 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The radio frequency unit 141 is configured to receive downlink control information DCI triggered once sent by the network side device under a first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
a processor 1410, configured to retransmit the first HARQ-ACK codebook to the network side device through the radio frequency unit 141 according to a one-time trigger DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
And the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
In the embodiment of the application, the downlink control information DCI is triggered once by receiving the downlink control information DCI sent by the network side equipment under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; retransmitting the first HARQ-ACK codebook to the network side equipment according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit; the feedback of SPS HARQ-ACK can be controlled more flexibly and dynamically, and the reliability of the feedback of SPS HARQ-ACK is improved, so that the performance of SPS PDSCH transmission is ensured.
Optionally, the retransmitting, by the radio frequency unit 141, the first HARQ-ACK codebook to the network side device according to the one-time triggering DCI includes:
under the condition that at least one delayed SPS HARQ-ACK bit exists in a feedback time unit corresponding to the first HARQ-ACK codebook and meets a second condition, carrying out HARQ-ACK multiplexing on the first HARQ-ACK codebook and the at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook;
according to the one-time trigger DCI, the final feedback codebook is sent to the network side equipment through a radio frequency unit 141;
wherein the second condition comprises any one of:
delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority;
delaying SPS HARQ-ACK bit to correspond to any priority;
and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
By the scheme, the problem that the existing information transmission scheme for SPS HARQ-ACK feedback is poor in flexibility and reliability and cannot guarantee transmission performance is well solved.
The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the processor is used for sending downlink control information DCI triggered once to a terminal through the communication interface under a first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition; the communication interface is used for receiving the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI; wherein the first HARQ-ACK codebook is constructed in a third time unit; the first condition includes at least one of: the valid HARQ-ACK is not SPS HARQ-ACK bits; the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay; the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay; and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit. The network side device embodiment corresponds to the network side device method embodiment corresponding to fig. 11, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.
Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 15, the network device 150 includes: an antenna 151, a radio frequency device 152, a baseband device 153. The antenna 151 is connected to a radio frequency device 152. In the uplink direction, the radio frequency device 152 receives information via the antenna 151, and transmits the received information to the baseband device 153 for processing. In the downlink direction, the baseband device 153 processes information to be transmitted, and transmits the processed information to the radio frequency device 152, and the radio frequency device 152 processes the received information and transmits the processed information through the antenna 151.
The above-described band processing means may be located in the baseband apparatus 153, and the method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 153, where the baseband apparatus 153 includes the processor 154 and the memory 155.
The baseband apparatus 153 may, for example, include at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 15, where one chip, for example, a processor 154, is connected to the memory 155 to call a program in the memory 155 to perform the network device operations shown in the above method embodiment.
The baseband device 153 may also include a network interface 156 for interacting information with the radio frequency device 152, such as a common public radio interface (common public radio interface, CPRI for short).
Specifically, the network side device in the embodiment of the application further includes: instructions or programs stored in the memory 155 and executable on the processor 154, the processor 154 invokes the instructions or programs in the memory 155 to perform the methods performed by the modules shown in fig. 13 and achieve the same technical effects, and are not described herein in detail to avoid repetition.
The embodiment of the application further provides a readable storage medium, on which a program or an instruction is stored, where the program or the instruction realizes each process of the above embodiment of the information transmission method when executed by a processor, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
The processor is a processor in any terminal or any network side device described in the foregoing embodiments. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, where the processor is configured to run a program or an instruction, implement each process of the foregoing embodiment of the information transmission method on any terminal side or any network side device side, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.
The embodiments of the present application also provide a computer program/program product stored in a nonvolatile storage medium, the computer program/program product being executed by at least one processor to implement the steps of the information transmission method on either the terminal side or the device side on either the network side.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
Claims (47)
1. An information transmission method, comprising:
the method comprises the steps that a terminal receives Downlink Control Information (DCI) triggered once and sent by network side equipment;
the terminal determines a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
2. The method for transmitting information according to claim 1, wherein determining a feedback codebook for a first semi-persistent scheduling hybrid automatic repeat request acknowledgement, SPS, HARQ-ACK according to the one-time trigger, comprises:
the terminal determines the information of the second time unit according to the one-time trigger DCI;
the terminal determines a first SPS HARQ-ACK according to the information of the second time unit;
and the terminal constructs the feedback codebook based on the first SPS HARQ-ACK.
3. The information transmission method according to claim 1 or 2, characterized in that the second time unit is a predefined time unit or a time unit indicated by a one-time trigger DCI;
Wherein the predefined time units comprise any one of:
the first time unit;
a time unit in which DCI is received is triggered once;
a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
4. The method for transmitting information according to claim 1, wherein the transmitting the feedback codebook to the network-side device in the first time unit includes:
the terminal determines PUCCH resource indication PRI information corresponding to Physical Uplink Control Channel (PUCCH) resources used in the first time unit;
and the terminal uses the corresponding PUCCH resource to send the feedback codebook to the network side equipment in the first time unit according to the PRI information.
5. The information transmission method according to claim 4, wherein the PRI information includes any one of:
PRI information indicated by the last DCI in all DCIs received;
PRI information indicated by the last one-time trigger DCI received;
and if the PRI information indicated by all the received DCIs is consistent, the PRI information indicated by any DCI is determined.
6. The information transmission method according to claim 1, characterized by further comprising:
the terminal determines a priority limit condition corresponding to the first SPS HARQ-ACK;
the terminal determines a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI, and the method comprises the following steps:
the terminal determines a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI and the priority limiting condition;
wherein the priority limit condition includes at least one of:
SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority;
SPS HARQ-ACK corresponds to any priority;
and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
7. The information transmission method according to claim 1, wherein the second SPS HARQ-ACK includes at least one of:
initial SPS HARQ-ACK;
delaying the SPS HARQ-ACK;
the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation;
the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
8. The information transmission method of claim 1, wherein the first SPS HARQ-ACK further comprises at least one of:
starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK;
and transmitting HARQ-ACK initially in the first time unit.
9. The information transmission method according to claim 8, wherein the initial transmission HARQ-ACK includes at least one of:
when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH;
an initial SPS HARQ-ACK corresponding to the first time unit;
other DCIs indicate HARQ-ACK fed back in the first time unit;
wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
10. An information transmission method, comprising:
the network equipment sends downlink control information DCI triggered once to the terminal;
the network side equipment determines reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receives the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information;
Wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
11. The information transmission method according to claim 10, wherein the network side device determining the reference information of the feedback codebook for receiving the first semi-persistent scheduling hybrid automatic repeat request acknowledgement, SPS, HARQ-ACK, comprises:
the network side equipment determines the information of the second time unit;
and the network side equipment determines the reference information of the feedback codebook for receiving the first SPS HARQ-ACK according to the information of the second time unit.
12. The information transmission method according to claim 10 or 11, characterized in that the second time unit is a predefined time unit or a time unit indicated by a one-time trigger DCI;
wherein the predefined time units comprise any one of:
the first time unit;
a time unit in which DCI is received is triggered once;
a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
13. The method according to claim 10, wherein the receiving the feedback codebook of the DCI feedback according to the one-time trigger by the terminal in the first time unit according to the reference information includes:
the network side equipment determines PUCCH resource indication PRI information corresponding to Physical Uplink Control Channel (PUCCH) resources used in the first time unit;
and the network side equipment uses corresponding PUCCH resources to receive the feedback codebook fed back by the terminal according to the one-time trigger DCI in a first time unit according to the PRI information and the reference information.
14. The information transmission method according to claim 13, wherein the PRI information includes any one of:
PRI information indicated by the last DCI in all DCIs sent;
PRI information indicated by the last one-time trigger DCI sent;
and if the PRI information indicated by all the sent DCIs is consistent, the PRI information indicated by any DCI is determined.
15. The information transmission method according to claim 10, characterized by further comprising:
the network side equipment determines a priority limit condition corresponding to the first SPS HARQ-ACK;
The network side device determines reference information of a feedback codebook for receiving a first SPS HARQ-ACK, and the reference information comprises:
the network side equipment determines the reference information of a feedback codebook for receiving the first SPS HARQ-ACK according to the priority limit condition;
wherein the priority limit condition includes at least one of:
SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority;
SPS HARQ-ACK corresponds to any priority;
and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
16. The information transmission method of claim 10, wherein the second SPS HARQ-ACK comprises at least one of:
initial SPS HARQ-ACK;
delaying the SPS HARQ-ACK;
the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation;
the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
17. The information transmission method of claim 10, wherein the first SPS HARQ-ACK further comprises at least one of:
Starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK;
and transmitting HARQ-ACK initially in the first time unit.
18. The information transmission method according to claim 17, wherein the initial transmission HARQ-ACK includes at least one of:
when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH;
an initial SPS HARQ-ACK corresponding to the first time unit;
other DCIs indicate HARQ-ACK fed back in the first time unit;
wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
19. An information transmission apparatus, comprising:
the first receiving module is used for receiving the one-time triggering downlink control information DCI sent by the network side equipment;
the first execution module is used for determining a feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request response SPS HARQ-ACK according to the one-time triggering DCI; transmitting the feedback codebook to the network side equipment in a first time unit;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
20. The information transmission apparatus of claim 19, wherein the determining a feedback codebook for a first semi-persistent scheduling hybrid automatic repeat request acknowledgement, SPS, HARQ-ACK based on the one-time trigger DCI, comprises:
determining information of the second time unit according to the one-time trigger DCI;
determining a first SPS HARQ-ACK according to the information of the second time unit;
the feedback codebook is constructed based on the first SPS HARQ-ACK.
21. The information transmission apparatus according to claim 19 or 20, wherein the second time unit is a predefined time unit or a time unit indicated by a one-time trigger DCI;
wherein the predefined time units comprise any one of:
the first time unit;
a time unit in which DCI is received is triggered once;
a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
22. The information transmission apparatus according to claim 19, wherein the transmitting the feedback codebook to the network-side device in the first time unit includes:
Determining Physical Uplink Control Channel (PUCCH) resource indication (PRI) information corresponding to PUCCH resources used in the first time unit;
and according to the PRI information, sending the feedback codebook to the network side equipment in the first time unit by using the corresponding PUCCH resource.
23. The information transmission apparatus according to claim 22, wherein the PRI information includes any one of:
PRI information indicated by the last DCI in all DCIs received;
PRI information indicated by the last one-time trigger DCI received;
and if the PRI information indicated by all the received DCIs is consistent, the PRI information indicated by any DCI is determined.
24. The information transmission apparatus according to claim 19, characterized by further comprising:
a first determining module, configured to determine a priority constraint condition corresponding to the first SPS HARQ-ACK;
the determining the feedback codebook of the first SPS HARQ-ACK according to the one-time triggering DCI includes:
determining a feedback codebook of the first SPS HARQ-ACK according to the one-time trigger DCI and the priority limiting condition;
wherein the priority limit condition includes at least one of:
SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority;
SPS HARQ-ACK corresponds to any priority;
and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
25. The information transmission apparatus of claim 19, wherein the second SPS HARQ-ACK comprises at least one of:
initial SPS HARQ-ACK;
delaying the SPS HARQ-ACK;
the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation;
the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
26. The information transmission apparatus of claim 19, wherein the first SPS HARQ-ACK further comprises at least one of:
starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK;
and transmitting HARQ-ACK initially in the first time unit.
27. The information transmission apparatus of claim 26, wherein the initial transmission HARQ-ACK comprises at least one of:
When the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH;
an initial SPS HARQ-ACK corresponding to the first time unit;
other DCIs indicate HARQ-ACK fed back in the first time unit;
wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
28. An information transmission apparatus, comprising:
a first sending module, configured to send downlink control information DCI triggered once to a terminal;
the second execution module is used for determining reference information of a feedback codebook for receiving a first semi-persistent scheduling hybrid automatic repeat request response (SPS HARQ-ACK), and receiving the feedback codebook fed back by the terminal according to the one-time triggering DCI in a first time unit according to the reference information;
wherein the first SPS HARQ-ACK comprises a second SPS HARQ-ACK present in a second time unit; the first time unit is the same as the second time unit or the first time unit is located after the second time unit.
29. The information transmission apparatus of claim 28, wherein the determining the reference information for receiving the feedback codebook of the first semi-persistent scheduling hybrid automatic repeat request acknowledgement, SPS, HARQ-ACK comprises:
Determining information of the second time unit;
and determining the reference information of a feedback codebook for receiving the first SPS HARQ-ACK according to the information of the second time unit.
30. The information transmission apparatus according to claim 28 or 29, wherein the second time unit is a predefined time unit or a time unit indicated by a one-time trigger DCI;
wherein the predefined time units comprise any one of:
the first time unit;
a time unit in which DCI is received is triggered once;
a time unit offset by M time units relative to a reference time unit; the reference time unit is the first time unit or a time unit where DCI is received in a one-time triggering manner, and M is an integer.
31. The information transmission apparatus of claim 28, wherein the receiving the feedback codebook of the feedback of the terminal according to the one-time-triggered DCI in a first time unit according to the reference information comprises:
determining Physical Uplink Control Channel (PUCCH) resource indication (PRI) information corresponding to PUCCH resources used in the first time unit;
and according to the PRI information and the reference information, receiving the feedback codebook fed back by the terminal according to the one-time trigger DCI in a first time unit by using corresponding PUCCH resources.
32. The information transmission apparatus of claim 31, wherein the PRI information comprises any one of:
PRI information indicated by the last DCI in all DCIs sent;
PRI information indicated by the last one-time trigger DCI sent;
and if the PRI information indicated by all the sent DCIs is consistent, the PRI information indicated by any DCI is determined.
33. The information transmission apparatus according to claim 28, characterized by further comprising:
a second determining module, configured to determine a priority constraint condition corresponding to the first SPS HARQ-ACK;
the determining the reference information of the feedback codebook for receiving the first SPS HARQ-ACK includes:
determining reference information of a feedback codebook for receiving the first SPS HARQ-ACK according to the priority limit condition;
wherein the priority limit condition includes at least one of:
SPS HARQ-ACK corresponds to a first priority; the first priority is the priority indicated by the one-time trigger DCI or a predefined priority;
SPS HARQ-ACK corresponds to any priority;
and the priority corresponding to the SPS HARQ-ACK is higher than or equal to the first priority.
34. The information transmission apparatus of claim 28, wherein the second SPS HARQ-ACK comprises at least one of:
Initial SPS HARQ-ACK;
delaying the SPS HARQ-ACK;
the initial SPS HARQ-ACK refers to SPS HARQ-ACK fed back in the second time unit based on a corresponding SPS PDSCH and HARQ-ACK feedback timing relation;
the delayed SPS HARQ-ACK refers to SPS HARQ-ACK that has triggered or initiated a delay procedure within a time unit earlier than the second time unit.
35. The information transmission apparatus of claim 28, wherein the first SPS HARQ-ACK further comprises at least one of:
starting from the next time unit of the second time unit until the first time unit, and needing to transmit SPS HARQ-ACK;
and transmitting HARQ-ACK initially in the first time unit.
36. The information transmission apparatus of claim 35, wherein the initial transmission HARQ-ACK comprises at least one of:
when the DCI is triggered once to schedule the PDSCH, the HARQ-ACK corresponding to the scheduled PDSCH;
an initial SPS HARQ-ACK corresponding to the first time unit;
other DCIs indicate HARQ-ACK fed back in the first time unit;
wherein the other DCI includes: feedback of DCI corresponding to HARQ-ACK is arbitrarily required.
37. An information transmission method, comprising:
the terminal receives the downlink control information DCI which is sent by the network side equipment under the first condition and triggered once; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
the terminal retransmits the first HARQ-ACK codebook to the network side equipment according to the one-time triggering DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
38. The method for transmitting information according to claim 37, wherein the terminal retransmits the first HARQ-ACK codebook to the network side device according to a one-time trigger DCI, comprising:
Under a second condition, the terminal performs HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains the condition that the at least one delayed SPS HARQ-ACK bit meets a second condition;
the terminal sends the final feedback codebook to the network side equipment according to the one-time trigger DCI;
wherein the second condition comprises any one of:
delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority;
delaying SPS HARQ-ACK bit to correspond to any priority;
and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
39. An information transmission method, comprising:
the network side equipment sends downlink control information DCI triggered once to the terminal under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
the network side equipment receives the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI;
Wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
40. The information transmission method according to claim 39, further comprising:
the network side equipment determines that the terminal performs HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delay SPS HARQ-ACK bit under the second condition to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains at least one condition that the delay SPS HARQ-ACK bit meets a second condition;
the network side equipment receives the first HARQ-ACK codebook retransmitted by the terminal according to the one-time triggering DCI, and the method comprises the following steps:
The network side equipment receives the final feedback codebook sent by the terminal according to the one-time trigger DCI;
wherein the second condition comprises any one of:
delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority;
delaying SPS HARQ-ACK bit to correspond to any priority;
and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
41. An information transmission apparatus, comprising:
the second receiving module is used for receiving the one-time triggering downlink control information DCI sent by the network side equipment under the first condition; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
a second sending module, configured to retransmit the first HARQ-ACK codebook to the network side device according to a one-time trigger DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
The effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
42. The information transmission apparatus of claim 41, wherein the retransmitting the first HARQ-ACK codebook to the network side device according to a one-time trigger DCI comprises:
in the second case, performing HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains the condition that the at least one delayed SPS HARQ-ACK bit meets a second condition;
sending the final feedback codebook to the network side equipment according to the one-time trigger DCI;
wherein the second condition comprises any one of:
delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority;
Delaying SPS HARQ-ACK bit to correspond to any priority;
and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
43. An information transmission apparatus, comprising:
a third sending module, configured to send, under a first condition, downlink control information DCI triggered once to a terminal; the first case includes: at least one effective HARQ-ACK bit in the first HARQ-ACK codebook meets a first condition;
a third receiving module, configured to receive the first HARQ-ACK codebook that is retransmitted by the terminal according to the one-time triggering DCI;
wherein the first HARQ-ACK codebook is constructed in a third time unit;
the first condition includes at least one of:
the valid HARQ-ACK is not SPS HARQ-ACK bits;
the effective HARQ-ACK is SPS HARQ-ACK bit, but the corresponding SPS configuration item is not configured with delay;
the effective HARQ-ACK is SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, but the effective HARQ-ACK is not triggered to delay;
and the effective HARQ-ACK is an SPS HARQ-ACK bit, the corresponding SPS configuration item configures delay, the effective HARQ-ACK triggers the delay, and the third time unit is determined as a target time unit.
44. The information transmission apparatus according to claim 43, further comprising:
a third determining module, configured to determine that, in the second case, the terminal performs HARQ-ACK multiplexing on the first HARQ-ACK codebook and at least one delayed SPS HARQ-ACK bit to obtain a final feedback codebook; the second case includes: the feedback time unit corresponding to the first HARQ-ACK code book contains at least one condition that the delay SPS HARQ-ACK bit meets a second condition;
the receiving the first HARQ-ACK codebook of the DCI retransmission triggered by the terminal at one time includes:
receiving the final feedback codebook sent by the terminal according to the one-time trigger DCI;
wherein the second condition comprises any one of:
delaying SPS HARQ-ACK bits corresponding to the second priority; the second priority is the priority indicated by the one-time trigger DCI or a predefined priority;
delaying SPS HARQ-ACK bit to correspond to any priority;
and the priority corresponding to the delay SPS HARQ-ACK bit is higher than or equal to the second priority.
45. A terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the information transmission method according to any one of claims 1 to 9; or,
The program or instructions, when executed by the processor, implement the steps of the information transmission method of any one of claims 37 to 38.
46. A network side device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor implements the steps of the information transmission method according to any one of claims 10 to 18; or,
the program or instructions when executed by the processor implement the steps of the information transmission method of any one of claims 39 to 40.
47. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions, which when executed by a processor, implements the information transmission method of any one of claims 1 to 9, or implements the steps of the information transmission method of any one of claims 10 to 18, or implements the steps of the information transmission method of any one of claims 37 to 38, or implements the steps of the information transmission method of any one of claims 39 to 40.
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