WO2022073497A1 - Harq-ack反馈方法、装置、终端及网络侧设备 - Google Patents
Harq-ack反馈方法、装置、终端及网络侧设备 Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
Definitions
- the present application belongs to the field of communication technologies, and specifically relates to a HARQ-ACK feedback method, apparatus, terminal, and network side equipment.
- HARQ-ACK Hybrid Automatic Repeat Request-Acknowledgement
- SPS Semi-Persistent Scheduling
- the terminal cannot specify the HARQ-ACK feedback scheme, thereby affecting the performance of HARQ-ACK transmission and downlink data transmission.
- the purpose of the embodiments of the present application is to provide a HARQ-ACK feedback method, apparatus, terminal, and network-side equipment, which can solve the problem that when multiple feedback strategies are configured, HARQ-ACK feedback cannot be individually configured for HARQ-ACK feedback. And the problem that affects the performance of HARQ-ACK transmission and downlink data transmission.
- the embodiments of the present application provide a HARQ-ACK feedback method, which is applied to a terminal, including:
- HARQ-ACK feedback is performed.
- the embodiments of the present application provide a HARQ-ACK feedback method, which is applied to a network side device, including:
- the configuration signaling is used to configure a feedback strategy adopted for HARQ-ACK feedback for the terminal, where the HARQ-ACK corresponds to one or a group of scheduling configurations;
- an embodiment of the present application provides a HARQ-ACK feedback device, including:
- an acquisition module used to acquire the feedback strategy adopted by the HARQ-ACK feedback
- a first feedback sending module configured to perform HARQ-ACK feedback according to the feedback strategy.
- an embodiment of the present application provides a HARQ-ACK feedback device, including:
- a sending module configured to send configuration signaling to a terminal, wherein the configuration signaling is used to configure a feedback strategy adopted for HARQ-ACK feedback for the terminal, where the HARQ-ACK corresponds to one or a group of scheduling configurations;
- the first feedback receiving module is configured to receive the HARQ-ACK information fed back by the terminal according to the feedback strategy.
- an embodiment of the present application further provides a communication device, the communication device includes 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, the method of the first aspect, or the steps of the method of the second aspect, is implemented.
- an embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the method according to the first aspect is implemented, Alternatively, the steps of the method of the second aspect.
- an embodiment of the present application provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, and implement the first aspect The method, or, the method according to the second aspect.
- an embodiment of the present application provides a computer program product, the program product is stored in a non-volatile storage medium, and the program product is executed by at least one processor to implement the first aspect The method, or the steps of the method as described in the second aspect.
- 1 is a block diagram of a wireless communication system
- FIG. 2 is a schematic flowchart of a HARQ-ACK feedback method applied to a terminal according to an embodiment of the present application
- FIG. 4 is a schematic flowchart of a HARQ-ACK feedback method applied to a network side device according to an embodiment of the present application
- Fig. 5 is the apparatus structure diagram corresponding to the method of Fig. 2;
- Fig. 6 is the apparatus structure diagram corresponding to the method of Fig. 4;
- FIG. 7 is a structural diagram of a communication device according to an embodiment of the application.
- FIG. 8 is a structural diagram of a terminal according to an embodiment of the present application.
- FIG. 9 is a structural diagram of a network side device according to an embodiment of the present application.
- LTE Long Term Evolution
- LTE-Advanced LTE-Advanced
- LTE-A Long Term Evolution-Advanced
- CDMA Code Division Multiple Access
- TDMA Time Division Multiple Access
- FDMA Frequency Division Multiple Access
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single-carrier Frequency-Division Multiple Access
- system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
- NR New Radio
- the following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques can also be applied to applications other than NR system applications, such as 6th generation (6th generation ) Generation, 6G) communication system.
- 6th generation 6th generation
- 6G 6th generation
- FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
- the wireless communication system includes a terminal 11 and a network-side device 12 .
- the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
- PDA Personal Digital Assistant
- 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 (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to specific technical terms.
- the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
- UE User Equipment
- the methods in the embodiments of the present application are applied to a terminal, such as user equipment.
- User Equipment may refer to an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user Terminal, wireless communication device, user agent or user equipment.
- the terminal may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication function handheld devices, computing devices, or other processing devices connected to wireless modems, in-vehicle devices, wearable devices.
- SIP Session Initiation Protocol
- WLL wireless local loop
- PDA Personal Digital Assistant
- a HARQ-ACK feedback method As shown in FIG. 2 , a HARQ-ACK feedback method according to an embodiment of the present application, applied to a terminal, includes:
- Step 201 obtaining the feedback strategy adopted for HARQ-ACK feedback
- Step 202 according to the feedback strategy, perform HARQ-ACK feedback.
- the terminal acquires the feedback strategy adopted for the HARQ-ACK feedback, and determines the corresponding HARQ-ACK feedback behavior, so that various HARQ-ACK feedback load reduction strategies can be effectively used to ensure HARQ-ACK transmission and downlink data transmission performance.
- step 201 includes: receiving configuration signaling; wherein, the configuration signaling is used to configure a feedback strategy adopted for HARQ-ACK feedback for the terminal, where the HARQ-ACK corresponds to one or a group of scheduling configurations.
- the network side device sends configuration signaling for configuring a feedback strategy for the terminal, where the feedback strategy is a feedback strategy adopted by the terminal when performing HARQ-ACK feedback corresponding to one or a group of scheduling Configs.
- the terminal clarifies the feedback strategy used in subsequent execution of the HARQ-ACK feedback.
- the terminal will, by receiving the configuration signaling sent by the network side device, indicate the HARQ-ACK feedback policy corresponding to one or a group of scheduling Configs by the configuration signaling, and determine the corresponding HARQ-ACK feedback behavior under various configuration conditions, Therefore, various HARQ-ACK feedback load reduction strategies can be effectively utilized to ensure the performance of HARQ-ACK transmission and downlink data transmission.
- the feedback strategy includes at least one of the following:
- the ACK skipping strategy, the NACK skipping strategy, the HARQ-ACK bundling strategy and the HARQ-ACK disabling strategy can all achieve the purpose of reducing the HARQ-ACK feedback load for the physical downlink shared channel (SPS PDSCH) of the SPS Config.
- SPS PDSCH physical downlink shared channel
- ACK skipping strategy When only HARQ-ACK for SPS PDSCH needs to be fed back and all HARQ-ACK values are ACK, the terminal does not actually transmit the physical uplink control channel PUCCH that carries these SPS PDSCH HARQ-ACK, Otherwise, the HARQ-ACK corresponding to the SPS PDSCH is fed back normally.
- NACK skipping strategy When only the HARQ-ACK for SPS PDSCH needs to be fed back and all HARQ-ACK values are NACK, the terminal does not actually transmit the PUCCH carrying these SPS PDSCH HARQ-ACK, otherwise the corresponding SPS PDSCH will be fed back normally. HARQ-ACK.
- N SPS PDSCHs in each cycle correspond to a single HARQ-ACK bit. It can be considered that these N SPS PDSCHs correspond to N items of SPS Config, and the periods of these N items of SPS Config are all the same, only the offsets are different.
- HARQ-ACK disabling strategy SPS PDSCH transmission does not need to feed back HARQ-ACK.
- the network configures transmission resources and attributes and activates SPS PDSCH, it ensures that the corresponding SPS PDSCH can be transmitted correctly.
- the non-load mitigation strategy is to not consider HARQ-ACK feedback load mitigation, and use the defined HARQ-ACK codebook construction process to feed back HARQ-ACK for actual transmission or transmission opportunity of each SPS PDSCH.
- This non-load mitigation strategy can be understood as a normal HARQ-ACK feedback strategy.
- the network side device can configure the corresponding feedback strategy for each or each group of SPS Config, and notify the terminal through configuration signaling, especially for service data with certain characteristics (such as periodic service data, or quasi-standard with delay jitter). Periodic business data) when configuring SPS Config.
- the feedback strategy includes at least one of the following:
- each feedback strategy is HARQ-ACK feedback for the dynamically scheduled PDSCH, which is similar to the SPS PDSCH, and will not be repeated here.
- the dynamic scheduling can be understood as using the scheduling DCI to independently indicate the transmission of each or each group of PDSCHs.
- the scheduling DCI may be UE-specific DCI.
- Dynamic scheduling configuration can be understood as a configuration for dynamic scheduling, including high-level parameter configuration. Typically, dynamic scheduling configurations can be handled as a single scheduling configuration.
- step 201 includes:
- the default strategy is determined to be the feedback strategy adopted for HARQ-ACK feedback; wherein the default strategy includes at least one of the following:
- the network-side device can reduce the load based on the HARQ-ACK feedback, and only configure at least one of the ACK skip strategy, NACK skip strategy, HARQ-ACK bundling strategy, and HARQ-ACK disable strategy. A sort of. Therefore, when the terminal does not receive the configuration signaling, it can directly perform HARQ-ACK feedback according to the default policy.
- the default policy for HARQ-ACK feedback is not limited to the non-load mitigation policy, and can be pre-defined or configured.
- the configuration signaling may be higher layer signaling, or may be downlink control signaling DCI.
- the network still configures the initial/default HARQ-ACK feedback strategy through high-layer signaling, but when the HARQ-ACK feedback strategy is dynamically indicated in the DCI, the HARQ-ACK feedback strategy indicated by the DCI is actually used, otherwise, the high-layer signaling is used.
- Configured HARQ-ACK feedback policy For example, for SPS PDSCH, it is indicated in the corresponding activation/reactivation DCI; for downlink dynamic scheduling, it can be indicated in the scheduling DCI.
- the scheduling configuration is grouped based on a first target item, and the first target item includes at least one of the following:
- the physical uplink control channel PUCCH cell group to which it belongs is the physical uplink control channel PUCCH cell group to which it belongs;
- the grouping of the scheduling configuration may be performed based on the grouping configuration of the network side device.
- the network side device configures one or more SPS Configs with the same or similar service data characteristics as the same group. Specifically, for one or more SPS Configs serving the same periodic service (but whose period is not a configurable value in the protocol) or quasi-periodic services with delay jitter, the network side device can configure them as belong to the same SPS Config group.
- each SPS Config corresponding to the same SPS Config group can be activated or deactivated at the same time.
- a certain SPS Config group may consider all configured SPS Configs, or only consider the activated SPS Configs, that is, the SPS Configs in the active state.
- the grouping of scheduling configurations may be based on transmission priorities.
- the transmission priority can be the priority of the scheduling configuration, and the SPS Config corresponding to a certain priority can implicitly correspond to the same group. This corresponds to a certain priority SPS Config, which can include all configured SPS Configs, or only active SPS Configs.
- the transmission priority may be the priority explicitly indicated in the DCI, or, when not explicitly indicated in the DCI, may be the default priority specified by the configuration or the protocol.
- the grouping of the scheduling configuration may be performed based on the belonging PUCCH cell group (Cell Group).
- Cell Group The network-side device configures the HARQ-ACK feedback strategy for each PUCCH Cell Group, and this feedback strategy applies to each SPS Config configured or activated on all Serving Cells (Serving Cells) corresponding to this PUCCH Cell Group, that is, the network-side device is for each SPS Config.
- the HARQ-ACK feedback policy is uniformly configured for each SPS Config configured or activated on all Serving Cells corresponding to each PUCCH Cell Group.
- the grouping of scheduling configuration can be based on the Serving Cell to which it belongs.
- the network configures a HARQ-ACK feedback policy for each Serving Cell, and this feedback policy is applied to each SPS Config configured or activated on this Serving Cell, that is, HARQ-ACK is uniformly configured for each SPS Config configured or activated on a Serving Cell.
- ACK feedback strategy is used.
- the grouping of scheduling configurations may also be based on the BWP to which it belongs.
- the network configures a HARQ-ACK feedback policy for each BWP, and this feedback policy applies to each SPS Config configured or activated on this BWP, that is, the HARQ-ACK feedback policy is uniformly configured for each SPS Config configured or activated on a BWP .
- the configuration adopts at least one of the following: ACK skip strategy, NACK skip strategy, HARQ-ACK bundling strategy, HARQ-ACK disable strategy, non-load mitigation strategy, and inform the terminal through configuration signaling.
- the one or a group of scheduling configurations has a corresponding bundling identifier.
- the network side device configures the corresponding bundle identifier, such as the bundle number, for it. At this time, the SPS Config or SPS Config group with the same bundling identifier will perform HARQ-ACK bundling feedback.
- each group of scheduling configurations may be further divided into multiple scheduling configuration subgroups.
- each scheduling configuration group includes multiple scheduling configuration subgroups, and each scheduling configuration subgroup has a corresponding binding identifier, and the The scheduling configuration subgroup includes one or more scheduling configurations.
- a bundle identifier such as a bundle number
- each SPS Config subgroup (such as each SPS Config or each SPS Config subset) of the SPS Config group.
- the SPS Config subgroup here can be each SPS Config or each SPS Config subset, and each SPS Config subset can be considered as a further set division for this SPS Config group.
- the SPS Config or SPS Config subgroup with the same bundling identifier will perform HARQ-ACK bundling feedback.
- the terminal performs feedback processing after determining the feedback strategy through configuration signaling.
- each SPS Config determines its corresponding HARQ-ACK feedback policy (high-layer configuration or DCI indication), or when the downlink dynamic scheduling or downlink dynamic scheduling for a certain priority determines its corresponding HARQ-ACK feedback
- the terminal performs corresponding operations corresponding to the feedback policy when HARQ-ACK feedback is required.
- step 202 includes:
- the HARQ-ACK feedback only corresponds to the SPS physical downlink shared channel PDSCH, or, the feedback HARQ-ACK codebook uses a dynamic codebook or an enhanced dynamic codebook and the HARQ-ACK codebook includes the HARQ-ACK corresponding to the SPS PDSCH.
- the HARQ-ACK feedback of the SPS PDSCH perform at least one of the following:
- the feedback strategy is a single feedback strategy, perform HARQ-ACK feedback according to the single feedback strategy
- the feedback strategy is multiple feedback strategies, a target feedback strategy is determined, and HARQ-ACK feedback is performed according to the target feedback strategy.
- the HARQ-ACK codebook includes the HARQ-ACK corresponding to the SPS PDSCH, it will be used in this feedback.
- the feedback strategy is a single feedback strategy
- HARQ-ACK feedback is performed for the SPS PDSCH according to the single feedback strategy; and when multiple feedback strategies are used, the target feedback strategy is determined first, and then HARQ is performed for the SPS PDSCH according to the target feedback strategy. -ACK feedback.
- the HARQ-ACK codebook includes the HARQ-ACK corresponding to the SPS PDSCH.
- the HARQ-ACK codebook includes the HARQ-ACK codebook corresponding to the SPS PDSCH.
- the HARQ-ACK bit sequence corresponding to the PDSCH but when other feedback strategies are adopted, the HARQ-ACK codebook actually fed back by the terminal may not include the HARQ-ACK bit sequence corresponding to the SPS PDSCH, or incompletely include the HARQ corresponding to the SPS PDSCH.
- - ACK bit sequence may not include the HARQ-ACK bit sequence corresponding to the SPS PDSCH, or incompletely include the HARQ corresponding to the SPS PDSCH.
- the same HARQ-ACK feedback behavior can be used.
- the SPS Config configured as HARQ-ACK disabling does not need to be considered, because there is no corresponding HARQ-ACK feedback. Therefore, the HARQ-ACK codebook does not involve the HARQ-ACK disabling strategy at this time.
- the feedback strategy adopted for the HARQ-ACK feedback of the SPS PDSCH involves at least one of the following: ACK skip strategy, NACK skip strategy, HARQ-ACK bundling strategy, and non-load mitigation strategy.
- an optional embodiment is that the terminal does not expect HARQ-ACK in one HARQ-ACK codebook to correspond to different HARQ-ACK feedback strategies, or the terminal does not expect one HARQ-ACK codebook
- the HARQ-ACK in corresponds to any one of the HARQ-ACK feedback strategy combinations (each combination involves two or more HARQ-ACK feedback strategies). Therefore, the device on the network side can ensure that the HARQ-ACK in any HARQ codebook organized and fed back by the terminal corresponds to only a single HARQ-ACK feedback strategy by means of configuration or scheduling.
- the single HARQ-ACK codebook here can be understood as the HARQ-ACK bit sequence organized by the terminal when the non-load mitigation strategy is adopted and planned to be fed back in a time unit such as a certain time slot or sub-slot.
- this HARQ-ACK bit sequence (based on a non-load mitigation strategy) may be referred to as a nominal HARQ-ACK bit sequence (of a HARQ-ACK codebook).
- this HARQ-ACK bit sequence (the configuration-based feedback strategy, or the target feedback strategy mentioned later) may be referred to as the actual HARQ-ACK bit sequence (of one HARQ-ACK codebook).
- the behavior corresponding to the feedback strategy can be performed.
- performing HARQ-ACK feedback according to the feedback strategy includes:
- the single feedback strategy is an ACK skip strategy or a NACK skip strategy
- the target feedback strategy is an ACK skip strategy or a NACK skip strategy
- the transmission of the HARQ-ACK codebook corresponding to the SPS PDSCH is skipped, or the HARQ-ACK codebook of the first number of bits is fed back.
- the ACK codebook is determined based on the feedback strategy
- the HARQ-ACK codebook is generated according to the non-load mitigation strategy.
- the terminal will skip the HARQ corresponding to the SPS PDSCH when all the HARQ-ACK corresponding to the SPS Config can be skipped (skip).
- - Transmission of the ACK codebook otherwise the terminal reports the complete HARQ-ACK codebook.
- All SPS Configs mentioned here can be understood as all configured or activated SPS Configs corresponding to the current HARQ-ACK codebook. The correspondence here may be determined based on the nominal HARQ-ACK bit sequence of the current HARQ-ACK codebook.
- the HARQ-ACK codebook with the first number of bits can also be fed back, otherwise the terminal reports the complete HARQ-ACK codebook.
- the HARQ-ACK codebook with the first number of bits is set based on the feedback policy, including the value of the first number of bits and the setting of the value of each bit in the HARQ-ACK codebook.
- An optional implementation manner is that the first number of bits is 1, that is, the HARQ-ACK codebook fed back by the terminal contains only 1 bit.
- the 1-bit HARQ-ACK codebook is set to ACK when the feedback adopts the ACK skipping strategy; it is set to NACK when the feedback adopts the NACK skipping strategy.
- the 1-bit HARQ-ACK can be carried by PUCCH format 0/1. This method can be applied when the PUCCH transmission is in the Unlicensed band. At this time, the terminal needs to feed back the HARQ-ACK PUCCH in different situations (that is, to perform the PUCCH transmission carrying the HARQ-ACK bit sequence), but when it can be skipped (that is, when using ACK skipping and all HARQ-ACKs are ACK, or when NACK skipping and all HARQ-ACKs are NACK) can reduce the feedback load by reducing HARQ-ACK feedback bits, thereby reducing terminal power consumption and reducing uplink interference in the system .
- the network-side device When the terminal fails to perform LBT before the HARQ-ACK PUCCH transmission, the network-side device cannot receive the PUCCH correctly. At this time, the network-side device can determine the LBT failure this time, and then obtain the unsuccessfully transmitted HARQ-ACK through mechanisms such as retransmission. .
- performing HARQ-ACK feedback according to the feedback strategy includes:
- the single feedback strategy is the HARQ-ACK bundling strategy, or when the target feedback strategy is the HARQ-ACK bundling strategy, in the process of generating the HARQ-ACK bit sequence corresponding to the first serving cell, based on the The two target items are cycled;
- the second target item includes at least one of the following:
- the first serving cell is each serving cell involved in generating the HARQ-ACK codebook.
- the HARQ-ACK bundling strategy when the HARQ-ACK bit sequence corresponding to the first serving cell is generated, it will be based on at least one of the following: SPS configuration identifier, bundling identifier (such as Bundle number), SPS configuration group ID (such as SPS Config group number), and cycle.
- a cycle can be performed based on at least one of the above-mentioned second target items , the HARQ bit sequences output by each cycle are connected end to end according to the cycle order.
- the cycle based on the SPS configuration identifier (such as SPS Config index) can be cycled from small to large or from large to small based on the SPS Config index; at this time, the HARQ-ACK bit corresponding to a Bundle can occupy the minimum SPS Config corresponding to this Bundle index or the maximum SPS Config index or the HARQ-ACK bit position corresponding to the specified SPS Config index, other SPS Config indexes corresponding to this Bundle are ignored in the loop.
- the value of the HARQ-ACK bit corresponding to a certain bundle may be determined based on subsequent operations.
- the value of the HARQ-ACK bit corresponding to this Bundle may be 1; when the HARQ-ACK corresponding to a certain Bundle is determined to be NACK, this Bundle The value of the corresponding HARQ-ACK bit may be 0.
- the loop is based on the bundle identifier (eg, the bundle number), which can be looped from small to large or from large to small based on the bundle number.
- the bundle identifier eg, the bundle number
- the SPS Config group number can be cycled from small to large or from large to small.
- a certain SPS Config group can correspond to a single or multiple bundle identifiers (for the latter, it can be understood that a certain SPS Config subset included in this SPS Config group corresponds to a single bundle identifier).
- the HARQ-ACK bits corresponding to the bundle identifier can occupy the minimum SPS configuration group identifier/SPS Config subset index corresponding to the bundle identifier, or the maximum SPS configuration Group ID/SPS Config Subset Index, or specify the HARQ-ACK bit position corresponding to the SPS Configuration Group ID/SPS Config Subset Index.
- Other SPS Configuration Group IDs/SPS Config Subset Indexes corresponding to this bundle ID are ignored in the loop .
- the SPS Config subsets contained in this SPS Config group, or the bundle identifiers involved can be cycled from small to large or from large to small. This will not be repeated.
- the outermost loop can still be based on the Serving cell index, such as looping from small to large or from large to small based on the Serving cell index, and then for Each Serving cell index generates its corresponding HARQ-ACK bit sequence, and the HARQ-ACK bit sequence corresponding to each Serving cell index is connected end to end in cyclic order, which will not be repeated here.
- the HARQ-ACK corresponding to the bundle identifier is determined according to at least one of the following:
- the HARQ-ACK corresponding to the bundle identifier is ACK
- the HARQ-ACK corresponding to the bundling identifier is NACK.
- the HARQ-ACK corresponding to the bundling identifier is determined according to at least one of the following:
- the HARQ-ACK corresponding to the bundle identifier is ACK
- the HARQ-ACK corresponding to the bundle identifier is NACK.
- the target transport block is a transport block corresponding to all SPS PDSCH opportunities within N cycles, the SPS PDSCH occasions correspond to the first SPS configuration, the first SPS configuration corresponds to the first bundle identifier, and the cycle corresponds to First bundle identifier.
- the HARQ-ACK corresponding to the transport block i of this Bundle instance is set to ACK; otherwise, it is set to NACK.
- the HARQ-ACK corresponding to the transport block i of this Bundle instance is set to ACK only when the decoding result of transport block i of all SPS PDSCH occasions corresponding to this Bundle instance is ACK; otherwise, it is set to NACK.
- a corresponding single HARQ-ACK bit may be included in the actually fed back HARQ-ACK codebook.
- the corresponding HARQ-ACK bit value may be 1; when a certain transport block index i of a certain Bundle instance is set to ACK When the corresponding HARQ-ACK is set to NACK, the value of the corresponding HARQ-ACK bit may be 0.
- each Bundle instance corresponding to the bundle identifier or Bundle number can be further chronologically ordered.
- the HARQ-ACK codebook may be organized and reported based on the prior art or regulations.
- the terminal may support one or more HARQ-ACK feedback strategies corresponding to HARQ-ACK in one HARQ-ACK codebook.
- the HARQ-ACK in one HARQ-ACK codebook corresponds to multiple HARQ-ACK feedback strategies, when organizing and feeding back this HARQ-ACK codebook, the terminal will determine the final target feedback strategy to use.
- the target feedback strategy is: a predefined or preconfigured feedback strategy, or,
- a feedback strategy is determined among the plurality of feedback strategies.
- the target feedback strategy may be a feedback strategy specified by a protocol or preconfigured by a high layer.
- a certain feedback strategy specified in the protocol or pre-configured by a higher layer is the target feedback strategy, such as a non-load mitigation strategy.
- the terminal determines that the HARQ-ACK codebook currently to be organized corresponds to two or more HARQ-ACK feedback strategies, it does not pay attention to the specific HARQ-ACK feedback strategies, and directly adopts the non-load mitigation strategy to report the HARQ in its entirety.
- - HARQ-ACK for all SPS PDSCHs corresponding to the ACK codebook is the target feedback strategy specified in the protocol or preconfigured by a higher layer.
- the actually adopted HARQ-ACK feedback strategies ie, target feedback strategies
- Relationships can be specified by protocols, or configured through higher layer signaling.
- the terminal determines that the HARQ-ACK codebook currently to be organized corresponds to two or more HARQ-ACK feedback strategies through configuration signaling, based on the HARQ-ACK feedback strategy combination formed by these corresponding HARQ-ACK feedback strategies, By finding the corresponding row in Table 1, the corresponding target feedback strategy can be determined, which is used to actually organize the HARQ-ACK codebook.
- the target feedback strategy is determined among various feedback strategies based on preset rules.
- the index corresponding to each HARQ-ACK feedback strategy is pre-configured by the protocol or pre-configured by the high layer.
- a possible index is: 0-non-load mitigation strategy; 1-HARQ-ACK bundling; 2-NACK skipping; 3-ACK skipping.
- Preset rules can be one or more of the following:
- this HARQ-ACK feedback strategy is always selected;
- the HARQ-ACK codebook corresponding to each SPS configuration is generated according to each feedback strategy. It can be understood here that each SPS Config corresponding to the current HARQ-ACK codebook performs corresponding HARQ-ACK feedback according to the respective configured HARQ-ACK feedback strategy.
- the HARQ-ACK bit sequence output by each SPS Config based on its configured HARQ-ACK feedback strategy can be connected end to end based on a predefined cyclic sequence to form a complete HARQ-ACK codebook.
- the cyclic order of the HARQ-ACK bit sequence corresponding to the organization codebook can be: Serving cell index-SPS PDSCH configuration index-DL slot index, that is, based on DL first
- the slot index (downlink time slot index) is looped from small to large or from large to small, and then based on the SPS PDSCH configuration index (SPS configuration index) is looped from small to large or from large to small, and finally based on the Serving cell index (service The cell index) is cycled from small to large or from large to small; the HARQ bit sequences output from each cycle are connected end-to-end to form a single HARQ-ACK bit sequence, which is used as the HARQ-ACK codebook to be fed back.
- An example of its reporting can be found in Figure 3.
- each SPS Config may cause the network side device to target more codebook sizes (Codebook Size; corresponding to the above-mentioned to-be-feedback) Blind detection of the length of a single HARQ-ACK bit sequence corresponding to the HARQ-ACK codebook), or leading to confusion in bit mapping (PDSCH reception ⁇ -> HARQ-ACK bits). Therefore, the reporting operation can be further restricted.
- Codebook Size corresponding to the above-mentioned to-be-feedback
- Blind detection of the length of a single HARQ-ACK bit sequence corresponding to the HARQ-ACK codebook blind detection of the length of a single HARQ-ACK bit sequence corresponding to the HARQ-ACK codebook
- leading to confusion in bit mapping PDSCH reception ⁇ -> HARQ-ACK bits
- the HARQ-ACK of the second number of bits corresponds to the first SPS configuration or the SPS configuration group
- the HARQ-ACK of the third number of bits The ACK corresponds to the second SPS configuration or SPS configuration group, the first SPS configuration or SPS configuration group adopts an ACK skip policy, and the second SPS configuration or SPS configuration group adopts a NACK skip policy; or,
- a HARQ-ACK codebook with a fourth number of bits is fed back, where the HARQ-ACK codebook with the fourth number of bits is used to indicate to the network side device that the original HARQ-ACK codebook is skipped.
- the terminal skips the transmission of the HARQ-ACK codebook corresponding to the SPS PDSCH.
- the second number of bits such as 1 bit
- the value is ACK is fed back
- the second number of bits is fed back.
- the predefined or preconfigured number of bits is at least the second number of bits plus the third number of bits.
- the order between the HARQ-ACK bits corresponding to ACK skipping and the HARQ-ACK bits corresponding to NACK skipping may be specified by the protocol or based on high-level configuration.
- the terminal feeds back the HARQ-ACK codebook of the HARQ-ACK with a fourth number of bits (for example, 1 bit), and this 1 bit is used to indicate to the network side device that the original HARQ-ACK codebook has been skipped (skipped), which
- the value can be specified by the protocol or based on high-level configuration, for example, set to ACK.
- the original HARQ-ACK codebook is the HARQ-ACK codebook corresponding to the SPS PDSCH, optionally, it can be the HARQ-ACK bit sequence corresponding to the SPS PDSCH when the non-load mitigation strategy is adopted, or, the HARQ mentioned above - The nominal HARQ-ACK bit sequence of the ACK codebook.
- the terminal will feedback including All HARQ-ACKs of the original HARQ-ACK codebook.
- the SPS PDSCH corresponding to the HARQ-ACK codebook is fed back based on the ACK skip strategy and/or NACK skip strategy, and other feedback strategies, and the ACK skip
- the HARQ-ACK codebook corresponding to the SPS PDSCH fed back only includes the HARQ-ACK bits obtained based on the other feedback strategies sequence
- the other feedback strategies include at least one of the following:
- HARQ-ACK feedback strategies are the above-mentioned ACK skip strategy, NACK skip strategy, HARQ-ACK bundling strategy, HARQ-ACK disable strategy, non-load mitigation strategy, except for ACK skip strategy and NACK skip strategy at least one strategy.
- SPS PDSCH corresponding to the HARQ-ACK codebook involves ACK skipping and/or NACK skipping
- other HARQ-ACK feedback strategies only the SPS Config or SPS Config group corresponding to the ACK skipping and/or NACK skipping can be skipped.
- the terminal When HARQ-ACK is used, the terminal will ignore the corresponding HARQ-ACK bit sequence when organizing the HARQ-ACK codebook, and only organize the corresponding HARQ-ACK bit sequence according to the configured HARQ-ACK feedback policy for the remaining SPS Config or SPS Config group. ; otherwise, the terminal feeds back all HARQ-ACKs including the HARQ-ACK codebook of the corresponding SPS PDSCH.
- each SPS Config or SPS Config group is configured according to its own HARQ-ACK feedback scheme. Just report it.
- the HARQ-ACK bit sequence of the SPS Config or SPS Config group corresponding to the HARQ-ACK bundling refer to the above process.
- the size of the codebook that is, the number of bits contained in the corresponding HARQ-ACK codebook is based on the semi-static codebook. configuration. Therefore, when at least one HARQ-ACK bit in these codebooks corresponds to SPS PDSCH reception, because the HARQ-ACK bits corresponding to SPS PDSCH reception may be scattered, they will be interleaved with the HARQ-ACK bits of the dynamically scheduled PDSCH.
- step 102 includes:
- the feedback HARQ-ACK codebook uses a semi-static codebook or a one-time codebook, if each bit in the generated HARQ-ACK codebook corresponds to NACK or ACK, this feedback is skipped; or,
- a HARQ-ACK codebook with a sixth bit quantity is fed back, where the HARQ-ACK codebook with the sixth bit quantity is used to indicate to the network side device that the original HARQ-ACK codebook is skipped.
- the terminal can ignore this feedback; 1 bit is used to indicate to the network-side device that the original HARQ-ACK codebook has been skipped (skipped), and its value can be specified by the protocol or based on high-layer configuration.
- the bits in the HARQ-ACK codebook with the sixth number of bits are set to NACK, and the sixth bit in the HARQ-ACK codebook is set to be ACK.
- the bit in the HARQ-ACK codebook with the number of bits (for example, 1 bit) is set as ACK; otherwise, it is reported normally.
- the NDI bits in the HARQ-ACK codebook do not participate in the above NACK/ACK judgment.
- the feedback HARQ-ACK codebook uses a semi-static codebook or a one-shot codebook
- the feedback is not limited to the above method, and the conventional HARQ-ACK codebook can also be organized and fed back according to a non-load mitigation strategy.
- the terminal does not expect the configuration to be semi-static (Type-1 ) codebook and/or One-shot (Type-3) codebook, configure HARQ-ACK feedback strategies such as ACK skipping/NACK skipping/HARQ-ACK bundling/HARQ-ACK disabling for SPS Config, that is, configure other than normal HARQ- Other HARQ-ACK feedback strategies other than ACK feedback, or other HARQ-ACK feedback strategies other than non-load mitigation strategies are configured.
- HARQ-ACK feedback strategies such as ACK skipping/NACK skipping/HARQ-ACK bundling/HARQ-ACK disabling for SPS Config, that is, configure other than normal HARQ- Other HARQ-ACK feedback strategies other than ACK feedback, or other HARQ-ACK feedback strategies other than non-load mitigation strategies are configured.
- the above configuration can be allowed, but the terminal does not expect the HARQ-ACK and semi-static codebooks corresponding to the SPS Config configured with HARQ-ACK feedback policies such as ACK skipping/NACK skipping/HARQ-ACK bundling/HARQ-ACK disabling. report together with the One-shot codebook, that is, avoid the fusion of the HARQ-ACK corresponding to these SPS Configs with the semi-static codebook and/or the One-shot codebook.
- HARQ-ACK feedback policies such as ACK skipping/NACK skipping/HARQ-ACK bundling/HARQ-ACK disabling.
- the HARQ-ACK bit sequence corresponding to the SPS PDSCH is appended to the HARQ-ACK bit sequence corresponding to the dynamically scheduled PDSCH.
- the processing of the HARQ-ACK bit sequence corresponding to the SPS PDSCH is similar to the processing of the HARQ-ACK feedback only corresponding to the SPS PDSCH, and will not be repeated here.
- the HARQ-ACK bits corresponding to the downlink dynamic scheduling in the entire HARQ-ACK codebook can be The sequence is regarded as the HARQ-ACK bit sequence corresponding to a single SPS Config or a single SPS Config group, and is used together with the HARQ-ACK bit sequence corresponding to other SPS Config or SPS Config group corresponding to this HARQ-ACK codebook. Feedback only corresponds to SPS The processing at the time of PDSCH is sufficient.
- this embodiment can effectively reduce the SPS PDSCH HARQ-ACK feedback load by introducing a personalized configuration method for the HARQ-ACK feedback strategy of the SPS Config, and determining the corresponding HARQ-ACK feedback behavior during the hybrid configuration.
- a HARQ-ACK feedback method applied to a network side device, includes:
- Step 401 sending configuration signaling to a terminal, wherein the configuration signaling is used to configure a feedback strategy adopted for HARQ-ACK feedback for the terminal, where the HARQ-ACK corresponds to one or a group of scheduling configurations;
- Step 402 Receive HARQ-ACK information fed back by the terminal according to the feedback strategy.
- the HARQ-ACK information is fed back by the terminal applying the HARQ-ACK feedback method in the above-mentioned embodiment, and details are not repeated here.
- the feedback strategy includes at least one of the following:
- the feedback strategy includes at least one of the following:
- the method further includes:
- HARQ-ACK information fed back according to a default strategy wherein the default strategy includes at least one of the following:
- the scheduling configuration is grouped based on a first target item, and the first target item includes at least one of the following:
- the physical uplink control channel PUCCH cell group to which it belongs is the physical uplink control channel PUCCH cell group to which it belongs;
- the one or a group of scheduling configurations has a corresponding bundling identifier.
- each scheduling configuration group includes multiple scheduling configuration subgroups, each scheduling configuration subgroup has a corresponding binding identifier, and the scheduling configuration subgroup includes one or more scheduling configurations.
- This method introduces a personalized configuration method for the HARQ-ACK feedback strategy of SPS Config, and determines the corresponding HARQ-ACK feedback behavior in hybrid configuration, which can effectively reduce the SPS PDSCH HARQ-ACK feedback load.
- the network side device applying this method can receive the feedback from the terminal in the previous embodiment.
- the implementation of the network side device is applicable to this method, and the same technical effect can also be achieved.
- the HARQ-ACK feedback method provided by the embodiment of the present application may be executed by a HARQ-ACK feedback apparatus, or a control module in the HARQ-ACK feedback apparatus for performing loading of the HARQ-ACK feedback method.
- the method for loading the HARQ-ACK feedback performed by the HARQ-ACK feedback device is taken as an example to describe the HARQ-ACK feedback method provided by the embodiment of the present application.
- a HARQ-ACK feedback apparatus includes:
- an obtaining module 510 configured to obtain the feedback strategy adopted for the HARQ-ACK feedback
- the first feedback module 520 is configured to perform HARQ-ACK feedback according to the feedback strategy.
- the acquiring module 510 is further configured to receive configuration signaling; wherein, the configuration signaling is used to configure a feedback strategy adopted for HARQ-ACK feedback for the terminal, and the HARQ-ACK and one or one The group scheduling configuration corresponds.
- the feedback strategy includes at least one of the following:
- the feedback strategy includes at least one of the following:
- the obtaining module 510 is further configured to determine that the default strategy is the feedback strategy adopted for the HARQ-ACK feedback if the configuration signaling for configuring the feedback strategy adopted for the HARQ-ACK feedback is not received; wherein, the The default policy described above includes at least one of the following:
- the scheduling configuration is grouped based on a first target item, and the first target item includes at least one of the following:
- the physical uplink control channel PUCCH cell group to which it belongs is the physical uplink control channel PUCCH cell group to which it belongs;
- the one or a group of scheduling configurations has a corresponding bundling identifier.
- each scheduling configuration group includes multiple scheduling configuration subgroups, each scheduling configuration subgroup has a corresponding binding identifier, and the scheduling configuration subgroup includes one or more scheduling configurations.
- the first feedback module is further configured to:
- the HARQ-ACK feedback only corresponds to the SPS physical downlink shared channel PDSCH, or, the feedback HARQ-ACK codebook uses a dynamic codebook or an enhanced dynamic codebook and the HARQ-ACK codebook includes the HARQ-ACK corresponding to the SPS PDSCH.
- the HARQ-ACK feedback of the SPS PDSCH perform at least one of the following:
- the feedback strategy is a single feedback strategy, perform HARQ-ACK feedback according to the single feedback strategy
- the feedback strategy is multiple feedback strategies, a target feedback strategy is determined, and HARQ-ACK feedback is performed according to the target feedback strategy.
- the first feedback module is further configured to:
- the single feedback strategy is an ACK skip strategy or a NACK skip strategy
- the target feedback strategy is an ACK skip strategy or a NACK skip strategy
- the transmission of the HARQ-ACK codebook corresponding to the SPS PDSCH is skipped, or the HARQ-ACK codebook of the first number of bits is fed back.
- the ACK codebook is determined based on the feedback strategy
- the HARQ-ACK codebook is generated according to the non-load mitigation strategy.
- the first feedback module is further configured to:
- the single feedback strategy is the HARQ-ACK bundling strategy, or when the target feedback strategy is the HARQ-ACK bundling strategy, in the process of generating the HARQ-ACK bit sequence corresponding to the first serving cell, based on the The two target items are cycled;
- the second target item includes at least one of the following:
- the first serving cell is each serving cell involved in generating the HARQ-ACK codebook.
- the HARQ-ACK corresponding to the bundling identifier is determined according to at least one of the following:
- the HARQ-ACK corresponding to the bundle identifier is ACK
- the HARQ-ACK corresponding to the bundling identifier is NACK.
- the HARQ-ACK corresponding to the bundling identifier is determined according to at least one of the following:
- the HARQ-ACK corresponding to the bundle identifier is ACK
- the HARQ-ACK corresponding to the bundle identifier is NACK.
- the target transport block is a transport block of all SPS PDSCH occasions within N cycles, the SPS PDSCH occasions correspond to a first SPS configuration, and the first SPS configuration corresponds to a first bundling identifier.
- the target feedback strategy is: a predefined or preconfigured feedback strategy, or,
- a feedback strategy is determined among the plurality of feedback strategies.
- the HARQ-ACK codebook corresponding to each SPS configuration is generated according to each feedback strategy.
- the first feedback module is further configured to:
- the HARQ-ACK of the second number of bits corresponds to the first SPS configuration or SPS configuration group
- the HARQ-ACK of the third number of bits corresponds to the second SPS configuration or SPS configuration group
- the first SPS configuration or SPS configuration group adopts an ACK skip policy
- the second SPS configuration or SPS configuration group adopts a NACK skip policy
- a HARQ-ACK codebook with a fourth number of bits is fed back, where the HARQ-ACK codebook with the fourth number of bits is used to indicate to the network side device that the original HARQ-ACK codebook is skipped.
- the first feedback module is further configured to:
- the SPS PDSCH corresponding to the HARQ-ACK codebook is fed back based on the ACK skip strategy and/or NACK skip strategy, and other feedback strategies, and the SPS configuration or SPS configuration group corresponding to the ACK skip strategy and/or NACK skip strategy
- the HARQ-ACK codebook corresponding to the feedback SPS PDSCH only includes the HARQ-ACK bit sequence obtained based on the other feedback strategies
- the other feedback strategies include at least one of the following:
- the first feedback module is further configured to:
- the feedback HARQ-ACK codebook uses a semi-static codebook or a one-time codebook, if each bit in the generated HARQ-ACK codebook corresponds to NACK or ACK, this feedback is skipped; or,
- the device introduces a personalized configuration method for the HARQ-ACK feedback strategy of SPS Config, and determines the corresponding HARQ-ACK feedback behavior in the case of mixed configuration, which can effectively reduce the SPS PDSCH HARQ-ACK feedback load.
- the device is a device that applies the above-mentioned HARQ-ACK feedback method applied to a terminal, and the implementation manner of the above-mentioned method embodiments is applicable to the device, and the same technical effect can also be achieved.
- the HARQ-ACK feedback device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
- the apparatus may be a mobile electronic device or a non-mobile electronic device.
- the mobile electronic device may be a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle electronic device, a wearable device, an ultra-mobile personal computer (UMPC), a netbook, or a personal digital assistant (personal digital assistant).
- UMPC ultra-mobile personal computer
- netbook or a personal digital assistant
- non-mobile electronic devices can be servers, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (television, TV), teller machine or self-service machine, etc., this application Examples are not specifically limited.
- Network Attached Storage NAS
- personal computer personal computer, PC
- television television
- teller machine or self-service machine etc.
- the HARQ-ACK feedback device in this embodiment of the present application may be a device with an operating system.
- the operating system may be an Android (Android) operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
- the HARQ-ACK feedback apparatus provided in the embodiment of the present application can implement each process implemented by the terminal in the method embodiment of FIG. 2 , and to avoid repetition, details are not described here.
- a HARQ-ACK feedback apparatus includes:
- a sending module 610 configured to send configuration signaling to a terminal, wherein the configuration signaling is used to configure a feedback strategy adopted for HARQ-ACK feedback for the terminal, where the HARQ-ACK corresponds to one or a group of scheduling configurations;
- the first feedback receiving module 620 is configured to receive the HARQ-ACK information fed back by the terminal according to the feedback strategy.
- the feedback strategy includes at least one of the following:
- the feedback strategy includes at least one of the following:
- the device further includes:
- a second feedback receiving module configured to receive, when the terminal does not receive the configuration signaling
- HARQ-ACK information fed back according to a default strategy wherein the default strategy includes at least one of the following:
- the scheduling configuration is grouped based on a first target item, and the first target item includes at least one of the following:
- the physical uplink control channel PUCCH cell group to which it belongs is the physical uplink control channel PUCCH cell group to which it belongs;
- the one or a group of scheduling configurations has a corresponding bundling identifier.
- each scheduling configuration group includes multiple scheduling configuration subgroups, each scheduling configuration subgroup has a corresponding binding identifier, and the scheduling configuration subgroup includes one or more scheduling configurations.
- the device introduces a personalized configuration method for the HARQ-ACK feedback strategy of SPS Config, and determines the corresponding HARQ-ACK feedback behavior in the case of mixed configuration, which can effectively reduce the SPS PDSCH HARQ-ACK feedback load.
- this apparatus is an apparatus that applies the above-mentioned HARQ-ACK feedback method applied to a network side device, and the implementation manner of the above-mentioned method embodiments is applicable to this apparatus, and the same technical effect can also be achieved.
- an embodiment of the present application further provides a communication device, including a processor 701, a memory 702, a program or instruction stored in the memory 702 and executable on the processor 701, such as , when the communication device 700 is a terminal, when the program or instruction is executed by the processor 701, each process of the above-mentioned embodiment of the HARQ-ACK feedback method applied to the terminal is implemented, and the same technical effect can be achieved.
- the communication device 700 is a network-side device
- the program or instruction is executed by the processor 701
- each process of the above-mentioned embodiment of the HARQ-ACK feedback method applied to the network-side device can be achieved, and the same technical effect can be achieved. In order to avoid repetition , which will not be repeated here.
- FIG. 8 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present application.
- the terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810 and other components .
- the terminal 800 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
- a power supply such as a battery
- the terminal structure shown in FIG. 8 does not constitute a limitation on the terminal, and the terminal may include more or less components than those shown in the figure, or combine some components, or arrange different components, which will not be repeated here.
- the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042. Such as camera) to obtain still pictures or video image data for processing.
- the display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
- the user input unit 807 includes a touch panel 8071 and other input devices 8072 .
- the touch panel 8071 is also called a touch screen.
- the touch panel 8071 may include two parts, a touch detection device and a touch controller.
- Other input devices 8072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.
- the radio frequency unit 801 receives the downlink data from the network side device, and then processes it to the processor 810; in addition, sends the uplink data to the network side device.
- the radio frequency unit 801 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.
- Memory 809 may be used to store software programs or instructions as well as various data.
- the memory 809 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, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
- the memory 809 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
- ROM Read-Only Memory
- PROM programmable read-only memory
- PROM erasable programmable read-only memory
- Erasable PROM Erasable PROM
- EPROM electrically erasable programmable read-only memory
- EEPROM electrically erasable programmable read-only memory
- flash memory for example 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; optionally, the processor 810 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 810.
- the processor 810 is configured to obtain a feedback strategy adopted for HARQ-ACK feedback; and perform HARQ-ACK feedback according to the feedback strategy.
- the terminal introduces a personalized configuration method for the HARQ-ACK feedback strategy of SPS Config, and determines the corresponding HARQ-ACK feedback behavior in the mixed configuration, which can effectively reduce the SPS PDSCH HARQ-ACK feedback load.
- the network device 900 includes: an antenna 91 , a radio frequency device 92 , and a baseband device 93 .
- the antenna 91 is connected to the radio frequency device 92 .
- the radio frequency device 92 receives information through the antenna 91, and sends the received information to the baseband device 93 for processing.
- the baseband device 93 processes the information to be sent and sends it to the radio frequency device 92
- the radio frequency device 92 processes the received information and sends it out through the antenna 91 .
- the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 93 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 93 .
- the baseband apparatus 93 includes a processor 94 and a memory 95 .
- the baseband device 93 may include, for example, at least one baseband board on which a plurality of chips are arranged. As shown in FIG. 9 , one of the chips is, for example, the processor 94 , which is connected to the memory 95 to call the program in the memory 95 and execute it.
- the network devices shown in the above method embodiments operate.
- the baseband device 93 may further include a network interface 96 for exchanging information with the radio frequency device 92, and the interface is, for example, a common public radio interface (CPRI for short).
- CPRI common public radio interface
- the network-side device in the embodiment of the present application further includes: an instruction or program stored in the memory 95 and executable on the processor 94, and the processor 94 invokes the instruction or program in the memory 95 to execute each module shown in FIG. 6 .
- Embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the above-mentioned HARQ-ACK feedback method applied to a terminal is implemented, or, applied to
- the various processes of the embodiments of the HARQ-ACK feedback method of the network side device can achieve the same technical effect, and are not repeated here to avoid repetition.
- the processor is the processor in the communication device described in the foregoing embodiment.
- the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM), a magnetic disk or an optical disk, etc.
- ROM computer read-only memory
- RAM random access memory
- magnetic disk or an optical disk etc.
- An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a program or an instruction to implement the above-mentioned HARQ-terminal applied to the terminal.
- the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-a-chip, or a system-on-a-chip, or the like.
- the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation.
- the technical solution of the present application can be embodied in the form of a software product in essence or in a part that contributes to the prior art, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of this application.
- a storage medium such as ROM/RAM, magnetic disk, CD-ROM
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Abstract
Description
Claims (30)
- 一种混合自动重传请求应答HARQ-ACK反馈方法,应用于终端,包括:获取HARQ-ACK反馈采用的反馈策略;根据所述反馈策略,进行HARQ-ACK反馈。
- 根据权利要求1所述的方法,其中,所述获取HARQ-ACK反馈采用的反馈策略的步骤,包括:接收配置信令;其中,所述配置信令用于为所述终端配置HARQ-ACK反馈采用的反馈策略,所述HARQ-ACK与一个或一组调度配置对应。
- 根据权利要求2所述的方法,其中,所述一个或一组调度配置为半持续调度SPS配置的情况下,所述反馈策略包括以下至少一项:确认应答ACK跳过策略;否定应答NACK跳过策略;HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求2所述的方法,其中,所述一个或一组调度配置为动态调度配置的情况下,所述反馈策略包括以下至少一项:ACK跳过策略;HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求1所述的方法,其中,所述获取HARQ-ACK反馈采用的反馈策略,包括:若未接收到用于配置HARQ-ACK反馈采用的反馈策略的配置信令,则确定默认策略为HARQ-ACK反馈采用的反馈策略;其中,所述默认策略包 括以下至少一项:ACK跳过策略;NACK跳过策略;HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求2所述的方法,其中,所述调度配置是基于第一目标项进行分组的,所述第一目标项包括以下至少一项:网络侧设备的分组配置;传输优先级;所属的物理上行控制信道PUCCH小区组;所属的服务小区;所属的带宽部分BWP。
- 根据权利要求2所述的方法,其中,所述反馈策略为HARQ-ACK捆绑策略的情况下,所述一个或一组调度配置具有对应的捆绑标识。
- 根据权利要求2所述的方法,其中,每组调度配置包括多个调度配置子组,每个调度配置子组均具有对应的捆绑标识,且所述调度配置子组中包括一个或多个调度配置。
- 根据权利要求1所述的方法,其中,所述根据所述反馈策略,进行HARQ-ACK反馈,包括:在HARQ-ACK反馈仅对应SPS物理下行共享信道PDSCH,或者,反馈的HARQ-ACK码本使用动态码本或者增强动态码本且所述HARQ-ACK码本包括与SPS PDSCH对应的HARQ-ACK的情况下,对于SPS PDSCH的HARQ-ACK反馈,执行以下至少一项:若所述反馈策略为单一的反馈策略,则根据所述单一的反馈策略进行HARQ-ACK反馈;若所述反馈策略为多种反馈策略,则确定目标反馈策略,并根据所述目 标反馈策略进行HARQ-ACK反馈。
- 根据权利要求9所述的方法,其中,所述根据所述反馈策略,进行HARQ-ACK反馈,包括:所述单一的反馈策略为ACK跳过策略或NACK跳过策略的情况下,或所述目标反馈策略为ACK跳过策略或NACK跳过策略的情况下,执行以下至少一项:当全部的SPS配置对应的HARQ-ACK被跳过时,跳过SPS PDSCH对应的HARQ-ACK码本的传输,或者,反馈第一比特数量的HARQ-ACK码本,所述第一比特数量的HARQ-ACK码本基于反馈策略确定;当非全部的SPS配置对应的HARQ-ACK被跳过时,按照非负荷减轻策略生成HARQ-ACK码本。
- 根据权利要求9所述的方法,其中,所述根据所述反馈策略,进行HARQ-ACK反馈,包括:所述单一的反馈策略为HARQ-ACK捆绑策略的情况下,或所述目标反馈策略为HARQ-ACK捆绑策略的情况下,在生成第一服务小区对应的HARQ-ACK比特序列过程中,基于第二目标项进行循环;其中,所述第二目标项包括以下至少一项:SPS配置标识;捆绑标识;SPS配置组标识;其中,所述第一服务小区为生成HARQ-ACK码本时涉及的各个服务小区。
- 根据权利要求11所述的方法,其中,所述捆绑标识对应的HARQ-ACK根据以下至少一项确定:在至少一目标传输块的解码结果为ACK的情况下,所述捆绑标识对应的HARQ-ACK为ACK;在全部的目标传输块的解码结果为NACK的情况下,所述捆绑标识对应 的HARQ-ACK为NACK。
- 根据权利要求11所述的方法,其中,所述捆绑标识对应的HARQ-ACK根据以下至少一项确定:在全部的目标传输块的解码结果为ACK的情况下,所述捆绑标识对应的HARQ-ACK为ACK;在至少一目标传输块的解码结果为NACK的情况下,所述捆绑标识对应的HARQ-ACK为NACK。
- 根据权利要求12或13所述的方法,其中,所述目标传输块为N个周期内,所有SPS PDSCH时机的传输块,所述SPS PDSCH时机与第一SPS配置对应,所述第一SPS配置对应第一捆绑标识。
- 根据权利要求9所述的方法,其中,所述目标反馈策略为:预定义或预配置的反馈策略,或者,基于预设规则,在所述多种反馈策略中确定的反馈策略。
- 根据权利要求9所述的方法,其中,所述目标反馈策略包括所述多种反馈策略的情况下,按照各反馈策略生成各SPS配置对应的HARQ-ACK码本。
- 根据权利要求16所述的方法,其中,所述根据所述反馈策略,进行HARQ-ACK反馈,包括:在所述HARQ-ACK码本对应的SPS PDSCH仅基于ACK跳过策略和NACK跳过策略反馈,且对应的SPS配置或SPS配置组均跳过HARQ-ACK时,跳过SPS PDSCH对应的HARQ-ACK码本的传输;或者,反馈第二比特数量加第三比特数量的HARQ-ACK码本,所述第二比特数量的HARQ-ACK对应第一SPS配置或SPS配置组,所述第三比特数量的HARQ-ACK对应第二SPS配置或SPS配置组,所述第一SPS配置或SPS配置组采用ACK跳过策略,所述第二SPS配置或SPS配置组采用NACK跳过策略;或者,反馈第四比特数量的HARQ-ACK码本,所述第四比特数量的HARQ-ACK码本用于向网络侧设备指示原始HARQ-ACK码本均跳过。
- 根据权利要求16所述的方法,其中,所述根据所述反馈策略,进行HARQ-ACK反馈,包括:在所述HARQ-ACK码本对应的SPS PDSCH基于ACK跳过策略和/或NACK跳过策略,以及其他反馈策略反馈,且ACK跳过策略和/NACK跳过策略对应的SPS配置或SPS配置组均跳过HARQ-ACK时,反馈的SPS PDSCH对应的HARQ-ACK码本中仅包括基于所述其他反馈策略得到的HARQ-ACK比特序列;所述其他反馈策略包括以下至少一项:HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求1所述的方法,其中,所述根据所述反馈策略,进行HARQ-ACK反馈,包括:在反馈的HARQ-ACK码本使用半静态码本或者一次性码本的情况下,若生成的HARQ-ACK码本中各比特均对应NACK或者ACK,则跳过本次反馈;或者,反馈第五比特数量的HARQ-ACK码本,所述第五比特数量的HARQ-ACK码本为原始HARQ-ACK码本;或者,反馈第六比特数量的HARQ-ACK码本,所述第六比特数量的HARQ-ACK码本用于向网络侧设备指示原始HARQ-ACK码本均跳过。
- 一种HARQ-ACK反馈方法,应用于网络侧设备,包括:发送配置信令至终端,其中,所述配置信令用于为所述终端配置HARQ-ACK反馈采用的反馈策略,所述HARQ-ACK与一个或一组调度配置对应;接收所述终端根据所述反馈策略反馈的HARQ-ACK信息。
- 根据权利要求20所述的方法,其中,所述一个或一组调度配置为半持续调度SPS配置的情况下,所述反馈策略包括以下至少一项:确认应答ACK跳过策略;否定应答NACK跳过策略;HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求20所述的方法,其中,所述一个或一组调度配置为动态调度配置的情况下,所述反馈策略包括以下至少一项:ACK跳过策略;HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求20所述的方法,其中,还包括:接收所述终端在未接收到所述配置信令的情况下,根据默认策略反馈的HARQ-ACK信息;其中,所述默认策略包括以下至少一项:ACK跳过策略;NACK跳过策略;HARQ-ACK捆绑策略;HARQ-ACK禁用策略;非负荷减轻策略。
- 根据权利要求20所述的方法,其中,所述调度配置是基于第一目标项进行分组的,所述第一目标项包括以下至少一项:网络侧设备的分组配置;传输优先级;所属的物理上行控制信道PUCCH小区组;所属的服务小区;所属的带宽部分BWP。
- 根据权利要求20所述的方法,其中,所述反馈策略为HARQ-ACK捆绑策略的情况下,所述一个或一组调度配置具有对应的捆绑标识。
- 根据权利要求20所述的方法,其中,每组调度配置包括多个调度配置子组,每个调度配置子组均具有对应的捆绑标识,且所述调度配置子组中包括一个或多个调度配置。
- 一种HARQ-ACK反馈装置,包括:获取模块,用于获取HARQ-ACK反馈采用的反馈策略;第一反馈模块,用于根据所述反馈策略,进行HARQ-ACK反馈。
- 一种HARQ-ACK反馈装置,包括:发送模块,用于发送配置信令至终端,其中,所述配置信令用于为所述终端配置HARQ-ACK反馈采用的反馈策略,所述HARQ-ACK与一个或一组调度配置对应;第一反馈接收模块,用于接收所述终端根据所述反馈策略反馈的HARQ-ACK信息。
- 一种通信设备,包括处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序或指令,其中,所述程序或指令被所述处理器执行时实现如权利要求1至19中任一项所述的HARQ-ACK反馈方法,或者,如权利要求20至26中任一项所述的HARQ-ACK反馈方法的步骤。
- 一种可读存储介质,所述可读存储介质上存储程序或指令,其中,所述程序或指令被处理器执行时实现如权利要求1至19中任一项所述的HARQ-ACK反馈方法,或者,如权利要求20至26中任一项所述的HARQ-ACK反馈方法的步骤。
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