Uplink data channel scheduling via downlink control information for downlink data channel scheduling
By using DL DCI to indicate aperiodic triggering states for uplink scheduling, the method addresses reduced coverage and capacity issues in 5G NR TDD, optimizing PDCCH overhead and enhancing DL transmission efficiency in SBFD slots.
Patent Information
- Application Number
- PCT/CN2024/077305
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-02-16
- Publication Date
- 2025-08-21
AI Technical Summary
The 5G NR TDD mode results in reduced coverage, increased latency, and reduced capacity due to limited uplink time duration, and existing SBFD duplexing modes restrict DL operations during UL transmissions, leading to reduced PDCCH opportunities.
A mechanism is proposed where a network device transmits an aperiodic triggering state via DL DCI to a terminal device, indicating pre-configured uplink scheduling information for PUSCH, allowing the terminal device to select and perform uplink data channel scheduling, thereby reducing DCI overhead and UE complexity.
This approach optimizes PDCCH overhead and maximizes PDSCH resources by reducing DCI overhead and UE complexity in SBFD slots, enhancing DL transmission efficiency.
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Figure CN2024077305_21082025_PF_FP_ABST
Abstract
Description
UPLINK DATA CHANNEL SCHEDULING VIA DOWNLINK CONTROL INFORMATION FOR DOWNLINK DATA CHANNEL SCHEDULING
[0001] FIELDS
[0002] Various example embodiments of the present disclosure generally relate to the field of telecommunication and in particular, to methods, devices, apparatuses and computer readable storage medium for uplink data channel scheduling via downlink control information (DCI) for downlink data channel scheduling.BACKGROUND
[0003] The 5th Generation Mobile Communication Technology (5G) New Radio (NR) currently supports two duplexing modes, namely Frequency Division Duplexing (FDD) for paired bands and Time division duplex (TDD) for unpaired bands. In FDD, the frequency domain resource may be split in downlink and uplink. In TDD, the time domain resource may be split between downlink and uplink. Allocation of a limited time duration for the uplink in TDD may result in reduced coverage, increased latency, and reduced capacity. In a sub-band non-overlapping full duplex (SBFD) duplexing mode, simultaneous downlink and uplink transmission is allowed in downlink sub-band and in uplink sub-band in an unpaired wideband NR cell.SUMMARY
[0004] In a first aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus at least to: receive, from the second apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information; select the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state; determine scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; and perform the transmission on the uplink data channel by using the determined scheduling information.
[0005] In a second aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus at least to: transmit, to a first apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.
[0006] In a third aspect of the present disclosure, there is provided a method. The method comprises: receiving, at a first apparatus from the second apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information; selecting the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state; determining scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; and performing the transmission on the uplink data channel by using the determined scheduling information.
[0007] In a fourth aspect of the present disclosure, there is provided a method. The method comprises: transmitting, to a first apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.
[0008] In a fifth aspect of the present disclosure, there is provided a first apparatus. The first apparatus comprises means for receiving, from the second apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information; means for selecting the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state; means for determining scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; and means for performing the transmission on the uplink data channel by using the determined scheduling information.
[0009] In a sixth aspect of the present disclosure, there is provided a second apparatus. The second apparatus comprises means for transmitting, to a first apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.
[0010] In a seventh aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the third aspect.
[0011] In an eighth aspect of the present disclosure, there is provided a computer readable medium. The computer readable medium comprises instructions stored thereon for causing an apparatus to perform at least the method according to the fourth aspect.
[0012] It is to be understood that the Summary section is not intended to identify key or essential features of embodiments of the present disclosure, nor is it intended to be used to limit the scope of the present disclosure. Other features of the present disclosure will become easily comprehensible through the following description.BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Some example embodiments will now be described with reference to the accompanying drawings, where:
[0014] FIG. 1 illustrates an example communication environment in which example embodiments of the present disclosure can be implemented;
[0015] FIG. 2 illustrates an example of SBFD and non-SBFD slots according to some example embodiments of the present disclosure;
[0016] FIG. 3 illustrates a signaling chart illustrating an example of process according to some example embodiments of the present disclosure;
[0017] FIG. 4 illustrates an example of DCI for downlink data channel scheduling containing aperiodic physical uplink shared channel (AP-PUSCH) request pointing to a pre-configured triggering state according to some example embodiments of the present disclosure;
[0018] FIG. 5 illustrates a diagram showing an example process of uplink data channel scheduling via DCI for downlink data channel scheduling according to some example embodiments of the present disclosure;
[0019] FIG. 6 illustrates a diagram showing an example process of uplink data channel scheduling via DCI for downlink data channel scheduling according to some example embodiments of the present disclosure;
[0020] FIG. 7 illustrates a flowchart of a method implemented at a first apparatus according to some example embodiments of the present disclosure;
[0021] FIG. 8 illustrates a flowchart of a method implemented at a second apparatus according to some example embodiments of the present disclosure;
[0022] FIG. 9 illustrates a simplified block diagram of a device that is suitable for implementing example embodiments of the present disclosure; and
[0023] FIG. 10 illustrates a block diagram of an example computer readable medium in accordance with some example embodiments of the present disclosure.
[0024] Throughout the drawings, the same or similar reference numerals represent the same or similar element.DETAILED DESCRIPTION
[0025] Principle of the present disclosure will now be described with reference to some example embodiments. It is to be understood that these embodiments are described only for the purpose of illustration and help those skilled in the art to understand and implement the present disclosure, without suggesting any limitation as to the scope of the disclosure. Embodiments described herein can be implemented in various manners other than the ones described below.
[0026] In the following description and claims, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skills in the art to which this disclosure belongs.
[0027] References in the present disclosure to “one embodiment, ” “an embodiment, ” “an example embodiment, ” and the like indicate that the embodiment described may include a particular feature, structure, or characteristic, but it is not necessary that every embodiment includes the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to affect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.
[0028] It shall be understood that although the terms “first, ” “second, ” …, etc. in front of noun (s) and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another and they do not limit the order of the noun (s) . For example, a first element could be termed a second element, and similarly, a second element could be termed a first element, without departing from the scope of example embodiments. As used herein, the term “and / or” includes any and all combinations of one or more of the listed terms.
[0029] As used herein, “at least one of the following: <a list of two or more elements>” and “at least one of <a list of two or more elements>” and similar wording, where the list of two or more elements are joined by “and” or “or” , mean at least any one of the elements, or at least any two or more of the elements, or at least all the elements.
[0030] As used herein, unless stated explicitly, performing a step “in response to A” does not indicate that the step is performed immediately after “A” occurs and one or more intervening steps may be included.
[0031] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments. As used herein, the singular forms “a” , “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” , “comprising” , “has” , “having” , “includes” and / or “including” , when used herein, specify the presence of stated features, elements, and / or components etc., but do not preclude the presence or addition of one or more other features, elements, components and / or combinations thereof.
[0032] As used in this application, the term “circuitry” may refer to one or more or all of the following:
[0033] (a) hardware-only circuit implementations (such as implementations in only analog and / or digital circuitry) and
[0034] (b) combinations of hardware circuits and software, such as (as applicable) :
[0035] (i) a combination of analog and / or digital hardware circuit (s) with software / firmware and
[0036] (ii) any portions of hardware processor (s) with software (including digital signal processor (s) ) , software, and memory (ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and
[0037] (c) hardware circuit (s) and or processor (s) , such as a microprocessor (s) or a portion of a microprocessor (s) , that requires software (e.g., firmware) for operation, but the software may not be present when it is not needed for operation.
[0038] This definition of circuitry applies to all uses of this term in this application, including in any claims. As a further example, as used in this application, the term circuitry also covers an implementation of merely a hardware circuit or processor (or multiple processors) or portion of a hardware circuit or processor and its (or their) accompanying software and / or firmware. The term circuitry also covers, for example and if applicable to the particular claim element, a baseband integrated circuit or processor integrated circuit for a mobile device or a similar integrated circuit in server, a cellular network device, or other computing or network device.
[0039] As used herein, the term “communication network” refers to a network following any suitable communication standards, such as New Radio (NR) , Long Term Evolution (LTE) , LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , High-Speed Packet Access (HSPA) , Narrow Band Internet of Things (NB-IoT) and so on. Furthermore, the communications between a terminal device and a network device in the communication network may be performed according to any suitable generation communication protocols, including, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) , the sixth generation (6G) communication protocols, and / or any other protocols either currently known or to be developed in the future. Embodiments of the present disclosure may be applied in various communication systems. Given the rapid development in communications, there will of course also be future communication technologies and systems with which the present disclosure may be embodied. It should not be seen as limiting the scope of the present disclosure to only the aforementioned system.
[0040] As used herein, the term “network device” refers to a node in a communication network via which a terminal device accesses the network and receives services therefrom. The network device may refer to a base station (BS) or an access point (AP) , for example, a node B (NodeB or NB) , an evolved NodeB (eNodeB or eNB) , an NR NB (also referred to as a gNB) , a Remote Radio Unit (RRU) , a radio header (RH) , a remote radio head (RRH) , a relay, an Integrated Access and Backhaul (IAB) node, a low power node such as a femto, a pico, a non-terrestrial network (NTN) or non-ground network device such as a satellite network device, a low earth orbit (LEO) satellite and a geosynchronous earth orbit (GEO) satellite, an aircraft network device, and so forth, depending on the applied terminology and technology. In some example embodiments, radio access network (RAN) split architecture comprises a Centralized Unit (CU) and a Distributed Unit (DU) at an IAB donor node. An IAB node comprises a Mobile Terminal (IAB-MT) part that behaves like a UE toward the parent node, and a DU part of an IAB node behaves like a base station toward the next-hop IAB node.
[0041] The term “terminal device” refers to any end device that may be capable of wireless communication. By way of example rather than limitation, a terminal device may also be referred to as a communication device, user equipment (UE) , a Subscriber Station (SS) , a Portable Subscriber Station, a Mobile Station (MS) , or an Access Terminal (AT) . The terminal device may include, but not limited to, a mobile phone, a cellular phone, a smart phone, voice over IP (VoIP) phones, wireless local loop phones, a tablet, a wearable terminal device, a personal digital assistant (PDA) , portable computers, desktop computer, image capture terminal devices such as digital cameras, gaming terminal devices, music storage and playback appliances, vehicle-mounted wireless terminal devices, wireless endpoints, mobile stations, laptop-embedded equipment (LEE) , laptop-mounted equipment (LME) , USB dongles, smart devices, wireless customer-premises equipment (CPE) , an Internet of Things (IoT) device, a watch or other wearable, a head-mounted display (HMD) , a vehicle, a drone, a medical device and applications (e.g., remote surgery) , an industrial device and applications (e.g., a robot and / or other wireless devices operating in an industrial and / or an automated processing chain contexts) , a consumer electronics device, a device operating on commercial and / or industrial wireless networks, and the like. The terminal device may also correspond to a Mobile Termination (MT) part of an IAB node (e.g., a relay node) . In the following description, the terms “terminal device” , “communication device” , “terminal” , “user equipment” and “UE” may be used interchangeably.
[0042] As used herein, the term “resource, ” “transmission resource, ” “resource block, ” “physical resource block” (PRB) , “uplink resource, ” or “downlink resource” may refer to any resource for performing a communication, for example, a communication between a terminal device and a network device, such as a resource in time domain, a resource in frequency domain, a resource in space domain, a resource in code domain, or any other combination of the time, frequency, space and / or code domain resource enabling a communication, and the like. In the following, unless explicitly stated, a resource in both frequency domain and time domain will be used as an example of a transmission resource for describing some example embodiments of the present disclosure. It is noted that example embodiments of the present disclosure are equally applicable to other resources in other domains.
[0043] FIG. 1 shows an example communication network 100 in which embodiments of the present disclosure may be implemented. As shown in FIG. 1, the communication network 100 may include a first apparatus 110. Hereinafter the first apparatus 110 may also be referred to as a UE or a terminal device.
[0044] The communication network 100 may further include a second apparatus 120. Hereinafter the second apparatus 120 may also be referred to as a gNB or a network device. The first apparatus 110 may communicate with the second apparatus 120.
[0045] It is to be understood that the number of network devices and terminal devices shown in FIG. 1 is given for the purpose of illustration without suggesting any limitations. The communication network 100 may include any suitable number of network devices and terminal devices.
[0046] In some example embodiments, links from the second apparatus 120 to the first apparatus 110 may be referred to as a downlink (DL) , while links from the first apparatus 110 to the second apparatus 120 may be referred to as an uplink (UL) . In DL, the second apparatus 120 is a transmitting (TX) device (or a transmitter) and the first apparatus 110 is a receiving (RX) device (or receiver) . In UL, the first apparatus 110 is a TX device (or transmitter) and the second apparatus 120 is a RX device (or a receiver) .
[0047] Communications in the communication environment 100 may be implemented according to any proper communication protocol (s) , includes, but not limited to, cellular communication protocols of the first generation (1G) , the second generation (2G) , the third generation (3G) , the fourth generation (4G) , 5G, the sixth generation (6G) , and the like, wireless local network communication protocols such as Institute for Electrical and Electronics Engineers (IEEE) 802.11 and the like, and / or any other protocols currently known or to be developed in the future. Moreover, the communication may utilize any proper wireless communication technology, includes but not limited to: Code Division Multiple Access (CDMA) , Frequency Division Multiple Access (FDMA) , Time Division Multiple Access (TDMA) , FDD, TDD, Multiple-Input Multiple-Output (MIMO) , Orthogonal Frequency Division Multiple (OFDM) , Discrete Fourier Transform spread OFDM (DFT-s-OFDM) and / or any other technologies currently known or to be developed in the future.
[0048] As described, 5G NR currently supports two duplexing modes: FDD for paired bands and TDD for unpaired bands. In TDD, the time domain resource is split between downlink and uplink. Allocation of a limited time duration for the uplink in TDD may result in reduced coverage, increased latency, and reduced capacity.
[0049] Motivated by this, 3GPP conducted a study item on the evolution of duplexing operation in NR that addresses the challenges above. One of the main objectives of the study item is to allow simultaneous DL and UL transmission on different physical resource blocks (RBs) or sub-bands within an unpaired wideband NR cell. The set of PRBs assigned to a specific link direction is known as sub-band and this way of duplexing is denoted as sub-band non-overlapping full duplex (SBFD) or flexible full duplex.
[0050] From the above description of SBFD operation, it can be observed that there are two slot types for both DL and UL transmissions, SBFD slots and non-SBFD slots. During the SBFD slots, the non-overlapping DL sub-band (s) and UL sub-band (s) both exist. During the non-SBFD slots, the entire band is used for either DL or UL (i.e., legacy / full DL / UL slots) .
[0051] Several SBFD operation modes have been studied including whether time and frequency locations of sub-bands for SBFD operation are known to the SBFD-aware UE or not. It however has been agreed that at least the operation mode with time and frequency locations of sub-bands for SBFD operation being known to the SBFD-aware UE is prioritized. This means that SBFD slots should be known by the (SBFD-aware) UE in one way or another.
[0052] FIG. 2 shows an example of SBFD and non-SBFD slots according to some example embodiments of the present disclosure. As shown in FIG. 2, there are two slot types for both DL and UL transmissions, including SBFD slots 220 and non-SBFD slots 210 and 230. During the SBFD slots 220, both the non-overlapping DL sub-bands 221 and 223 and UL sub-band (s) 222 exist, while during the non-SBFD slots 210 and 230, the entire band is used for DL resource 211 or UL resource 231 (i.e., full DL / UL slots) .
[0053] In SBFD, it is assumed that gNBs can transmit and receive during a given SBFD slot while UEs can only receive or transmit, i.e., UEs are half-duplex. This limitation causes the problem of restricting DL operation in a SBFD slot when UL transmission also happens in the slot. In this case, some SBFD slots may not be used for DL reception of a given UE due to scheduled PUSCH transmissions (UL transmissions) . Thus, the number of slots for PDCCH transmission opportunities is reduced in SBFD mode.
[0054] To better utilize the limited opportunities for DL transmissions, it is useful to optimize and minimize the PDCCH overhead. In other words, it may be beneficial to maximize the resources that can potentially be allocated to PDSCH for data transmissions.
[0055] Therefore, an efficient way is expected to reduce the physical downlink control channel (PDCCH) overhead for SBFD UL scheduling.
[0056] In the present disclosure, a mechanism for triggering an aperiodic PUSCH transmission (data transmission) on SBFD UL sub-bands by DCI for downlink data channel is proposed. DCI for DL data channel may be referred to as DL DCI. In the solution of the present disclosure, the second apparatus 120 transmits, to the first apparatus via DL DCI, an indication of an aperiodic triggering state. The indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel and the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information. The first apparatus 110 selects the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state. Based on the selected aperiodic triggering state, the first apparatus 110 determine scheduling information for a transmission on the uplink data channel and performs the transmission on the uplink data channel by using the determined scheduling information.
[0057] In this way, the DCI overhead for PUSCH scheduling (PDCCH overhead) during SBFD slots can be reduced. Meanwhile, UE complexity for blind detection of DCI can also be reduced.
[0058] Example embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings.
[0059] Reference is now made to FIG. 3, which shows a signaling chart 300 for communication according to some example embodiments of the present disclosure. As shown in FIG. 3, the signaling chart 300 involves the first apparatus 110 and the second apparatus 120. For the purpose of discussion, reference is made to FIG. 1 and FIG. 2 to describe the signaling chart 300.
[0060] As shown in FIG. 3, the second apparatus 120 may transmit (304) , to the first apparatus 110, a configuration of the plurality of aperiodic triggering states for the uplink data channel, i.e., PUSCH. Each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information.
[0061] It is to be understood that the configuration of the plurality of aperiodic triggering states may be pre-configured for the first apparatus 110, which means that the second apparatus 120 may not need to transmit it to the first apparatus 110 via an additional signaling.
[0062] For example, the pre-configured uplink scheduling information may indicate one or more pre-configured uplink resources. The pre-configured uplink resources may include, for example, the time and frequency resources, modulation and coding scheme (MCS) , etc. More specifically, the pre-configured uplink resources may be resources on a SBFD uplink sub-band.
[0063] In addition, the pre-configured uplink scheduling information may also indicate other information such as transmission format, e.g. transmission precoding matrix index (TPMI) .
[0064] The second apparatus 120 may be aware of a capability of AP-PUSCH of the first apparatus 110. For example, as an option, the first apparatus 110 may indicate (302) to the second apparatus 120 that capability of AP-PUSCH is supported by the first apparatus 110.
[0065] The second apparatus 120 transmit (306) , to the first apparatus 110, an indication of an aperiodic triggering state via a DCI for downlink data channel scheduling, i.e., DL DCI. An aperiodic triggering state may be considered as an aperiodic resource trigger. For example, the indication of the aperiodic triggering state may be included in the same DCI as allocated resources for downlink data.
[0066] In some examples, the second apparatus might not transmit a separate DCI for uplink data channel scheduling (UL DCI) . This way, resources, e.g. PDCCH resources, are freed, e.g. for scheduling DL data in the PDSCH. In some examples, the second apparatus may schedule the PUSCH transmissions with the DL DCI only, wherein the DL DCI includes the indication of the aperiodic triggering state. In some examples, the UE receives the DL DCI including the SBFD PUSCH transmission scheduling. In some examples, the UE is scheduled with SBFD PUSCH transmissions via the DL DCI only, wherein the DL DCI includes the indication of the aperiodic triggering state. In some examples, the UE does not receive the UL DCI.
[0067] The indication of the aperiodic triggering state may depend on different DCI field design.
[0068] As an option, the indication of the aperiodic triggering state may be indicated in an aperiodic PUSCH request field, e.g., “AP-PUSCH request” in the DCI for the downlink data channel scheduling, i.e., the DL DCI.
[0069] As an example, according to the size of the triggering states, the size (in bits) of the DCI field “AP-PUSCH request” is determined. When the number of triggering states is up to 8, 3 bits can be reserved for AP-PUSCH request. In general, if the number of configured triggering states is large, the DCI size increases while scheduling flexibility is improved. On the other hand, if the number of configured triggering states is small, with a limited scheduling flexibility, DCI size can be reduced.
[0070] FIG. 4 shows how a DL DCI could include the AP-PUSCH request field which indicates one of the pre-configured aperiodic PUSCH triggering states. As shown, a PUSCH triggering state indicated in the “AP-PUSCH request” 410 of the DL DCI 420 may be corresponding to one the plurality of aperiodic triggering states in a list 430 of the PUSCH aperiodic triggering states. The list 430 may be pre-configured to the UE, for example.
[0071] As shown, in addition to a location of the pre-configured uplink resources in a time and frequency domain and a MCS associated with an uplink transmission on the uplink data channel, an aperiodic triggering state may also indicate one or more parameters such as one or more antenna ports to be used for the uplink transmission and / or sounding reference signal resource indicator (SRI) associated with the uplink transmission.
[0072] Instead of using a new AP-PUSCH request field in the DCI, the indication of the aperiodic triggering state may be indicated in an existing DL DCI field, e.g., a PUCCH field.
[0073] For example, one or more existing DL DCI parameters can be re-interpreted for PUSCH triggering state indication. If HARQ ACK / NACK corresponding to the scheduled PDSCH in the DL DCI is sent via PUSCH triggered, the PUCCH related information in DCI is not necessary. There are two fields for PUCCH in DL DCI, and the bit size is 3-6 bits according to K1 (PDSCH-to-HARQ-timing-indicator) configuration. These fields can be used for AP-PUSCH triggering states, e.g.,
[0074] PUCCH resource indicator -3 bits; or
[0075] PDSCH-to-HARQ_feedback timing indicator -0, 1, 2, or 3 bits. The bitwidth for this field is determined as log2 (I) bits, where I is the number of entries in the higher layer parameter dl-DataToUL-ACK.
[0076] Because the gNB may or may not schedule AP-PUSCH in DL DCI, it is necessary if the field is re-interpreted or not.
[0077] As an option, only one new additional bit is required in the DL DCI, to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state. For example, the new additional bit may indicate whether the existing field PUCCH resource indicator (3 bits) and PDSCH-to-HARQ-timing-indicator (0-3 bits) are to be reinterpreted or not. If the bit indicates that the field is to be reinterpreted, the 3-6 bits of the PDSCH-to-HARQ-timing-indicator will indicate the PUSCH aperiodic triggering states (instead of PUCCH resource or K1 value as it is done currently) .
[0078] In addition, if the field is reinterpreted, HARQ feedback of the scheduled PDSCH via DCI is expected to be conveyed on the triggered aperiodic PUSCH, thus the explicit indication of legacy K1 value is no longer needed. As a reminder, the K1 parameter indicates the time offset between the slots where the PDSCH is scheduled and the slot where the ACK / NACK feedback of the PDSCH is expected to be sent.
[0079] In some embodiments, when AP-PUSCH triggering state includes K2 parameter (timing offset between DCI and scheduled PUSCH) , both PUCCH resource indicator (PRI) field and PDSCH-to-HARQ_feedback timing indicator can be used for AP-PUSCH request.
[0080] In some other embodiments, when AP-PUSCH triggering state doesn’t include K2 parameter, K1 parameter can be re-interpreted as K2 parameter. A PRI field can be re-interpreted as AP-PUCCH request.
[0081] An example for defining AP-PUSCH scheduling by DL DCI is listed as below:
[0082] Table 1
[0083] The reference is now back to FIG. 3, upon receiving the indication of an aperiodic triggering state, the first apparatus 110 may select the aperiodic triggering state among the plurality of aperiodic triggering states, e.g., in the list 430 of the PUSCH aperiodic triggering states shown in FIG. 4, according to the received indication of the aperiodic triggering state.
[0084] Then the first apparatus 110 further determines (308) scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state and transmit (310) on the uplink data channel by using the determined scheduling information.
[0085] FIG. 5 illustrates a diagram showing an example process of uplink data channel scheduling via DCI for downlink data channel scheduling according to some example embodiments of the present disclosure. As shown in FIG. 5, the DL DCI (s) 501, 502, 503 are used for scheduling the PUSCH. For example, an aperiodic triggering state indicated in the DL DCI 501 received in SBFD DL sub-band in slot #0 may be associated with a scheduling of the PUSCH transmission 504 in SBFD UL sub-band in slot #2, an aperiodic triggering state indicated in the DL DCI 502 received in SBFD DL sub-band in slot #1 may be associated with a scheduling of the PUSCH transmission 505 in SBFD UL sub-band in slot #3 and an aperiodic triggering state indicated in the DL DCI 503 received in SBFD DL sub-band in slot #4 may be associated with a scheduling of the PUSCH transmission 506 in SBFD UL sub-band in slot #6.
[0086] In some embodiment, as for transmission configuration indicator (TCI) states indication, a MAC CE can be used to reduce the AP-PUSCH request field. For example, when the total number of triggering states is 64, MAC-CE can select 8 out of 64 states using 6 bits, and then 3 bits AP-PUSCH request field is used as part of the DL DCI.
[0087] In addition, as described, the aperiodic triggering state may indicate multiple parameters and at least a portion or part of them may be updated.
[0088] In some option, part of parameters of triggering states can be defined in DCI field, and the remaining part of parameters can be updated by other signals or associated UL grant. For example, one or more dynamic parts of parameters, such as MCS, SRI, TPMI (transmit precoding matrix indicator) , Rank etc., can be updated by MAC-CE, latest UL DCI, dedicated DCI for updating (e.g. type 2 configured grant) .
[0089] FIG. 6 illustrates a diagram showing an example process of uplink data channel scheduling via DCI for downlink data channel scheduling according to some example embodiments of the present disclosure. As shown in FIG. 6, an aperiodic triggering state #1 indicated in the DL DCI 601 received in SBFD DL sub-band in slot #0 may be associated with a scheduling of the PUSCH transmission 605 in SBFD UL sub-band in slot #2, an aperiodic triggering state #2 indicated in the DL DCI 602 received in SBFD DL sub-band in slot #1 may be associated with a scheduling of the PUSCH transmission 606 in SBFD UL sub-band in slot #3 and an aperiodic triggering state #1 indicated in the DL DCI 603 received in SBFD DL sub-band in slot #4 may be associated with a scheduling of the PUSCH transmission 608 in SBFD UL sub-band in slot #6.
[0090] Some parameters of the aperiodic triggering state may be updated by MAC-CE, for example, the MAC-CE 604 obtained from the PDSCH in slot #4 may contain updated MCS and TMPI, which may be used for the PUSCH transmission 608 in SBFD UL sub-band in slot #6.
[0091] Instead of MAC-CE, such part can be derived by the latest UL DCI, e.g. a dedicated UL DCI used for UL only slot. What parameters to be updated by the latest UL DCI can be further configured by the second apparatus 120. Alternatively, if any parameters are not included in AP-PUSCH triggering states, the parameters are determined by latest UL DCI.
[0092] As another example, separate UL DCI for updating the parameter is transmitted periodically.
[0093] In some embodiments, SBFD UL is triggered by normal DCI, e.g., 1 bit AP-PUSCH request field, that can reduce the PDCCH detection times and occasions. When the first apparatus 110 receives the field is enabled, then detect the SBFD UL DCI in next search occasion.
[0094] When this field (AP-PUSCH request field) is indicating no PUSCH scheduling, the first apparatus 110 may implicitly be aware of no UL operation of a certain slot, then the first apparatus 110 may skip blind detection of PDCCH in the slot.
[0095] In case there is no PUSCH allocation, one or more of the triggering states can be used for the other purpose, for example, one state can be reserved for either of no DL in the next slot or no SBFD operation in the next slot.
[0096] The second apparatus 120 may configure the DCI with the AP-PUSCH is only sent in one or more specific slots / search space.
[0097] It is also possible that one or more triggering states are signaled in one DCI. As an alternative way, one state can be defined as a list of states, and each state is corresponding to a slot in a row.
[0098] As described above, the present disclosure proposes a new mechanism to allow a DL DCI to trigger aperiodic PUSCH transmissions. This is intended for PUSCH scheduling in SBFD UL sub-band but not necessary to be limited to SBFD only. Because the UL sub-band size is smaller than full bandwidth (e.g., UL sub-band occupies 20%of the total available bandwidth) , the UL scheduling flexibility is lower than the normal UL transmission in legacy TDD slots. Thus, the number of patterns for PUSCH scheduling in the SBFD UL sub-band may be limited.
[0099] Taking advantage of the limited UL scheduling options in SBFD slots, the gNB can configure a list of possible triggering states for PUSCH. Each triggering state presents a pre-configured UL resources which, among others, include the time and frequency resources, MCS, etc.
[0100] With the configuration as disclosed herein, instead of using dedicated UL DCI for scheduling PUSCH in SBFD UL sub-band, the gNB can send a DL DCI containing one or more UL triggering state or AP-PUSCH triggering state.
[0101] In this way, the DCI overhead for PUSCH scheduling during SBFD slots can be reduced.
[0102] FIG. 7 shows a flowchart of an example method 700 implemented at a first apparatus in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 700 will be described from the perspective of the first apparatus 110 in FIG. 1. The first apparatus may be a UE.
[0103] At block 710, the first apparatus 110 receives, from the second apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.
[0104] At block 720, the first apparatus 110 selects the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state.
[0105] At block 730, the first apparatus 110 determines scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state.
[0106] At block 740, the first apparatus 110 performs the transmission on the uplink data channel by using the determined scheduling information.
[0107] In some example embodiments, the plurality of aperiodic triggering states have been pre-configured to the first apparatus.
[0108] In some example embodiments, the method 700 further comprises: receiving, from the second apparatus, a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information.
[0109] In some example embodiments, the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.
[0110] In some example embodiments, the indication of the aperiodic triggering state is included in the same DCI as allocated resources for downlink data.
[0111] In some example embodiments, the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI for the downlink data channel scheduling.
[0112] In some example embodiments, the aperiodic triggering state indicates one or more parameters comprising at least one of: a location of the pre-configured uplink resources in a time and frequency domain; a modulation and coding scheme associated with an uplink transmission on the uplink data channel; one or more antenna ports to be used for the uplink transmission; or sounding reference signal resource indicator, SRI, associated with the uplink transmission.
[0113] In some example embodiments, the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.
[0114] In some example embodiments, an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.
[0115] In some example embodiments, at least a portion of the one or more parameter is updated by at least one of: a medium access control-control element, MAC-CE, or a further DCI for uplink channel scheduling.
[0116] In some example embodiments, the method 700 further comprises: in accordance with a determination that a sub-band non-overlapping full duplex, SBFD, uplink operation is triggered via a previous DCI, detect the DCI for the SBFD uplink operation.
[0117] In some example embodiments, the first apparatus comprises a terminal device and the second apparatus comprises a network device.
[0118] FIG. 8 shows a flowchart of an example method 800 implemented at a second apparatus in accordance with some example embodiments of the present disclosure. For the purpose of discussion, the method 800 will be described from the perspective of the second apparatus 120 in FIG. 1. The second apparatus may be a network node, e.g. gNB.
[0119] At block 810, the second apparatus 120 transmits, to a first apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.
[0120] In some example embodiments, the method 800 further comprises: determining a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information; and transmitting the configuration to the first apparatus.
[0121] In some example embodiments, the method 800 further comprises: the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.
[0122] In some example embodiments, the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI.
[0123] In some example embodiments, the aperiodic triggering state indicates one or more parameters comprising at least one of: a location of the pre-configured uplink resources in a time and frequency domain; a modulation and coding scheme associated with an uplink transmission on the uplink data channel; one or more antenna ports to be used for the uplink transmission; or sounding reference signal resource indicator, SRI, associated with the uplink transmission.
[0124] In some example embodiments, the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.
[0125] In some example embodiments, an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.
[0126] In some example embodiments, the method 800 further comprises: updating at least a portion of the one or more parameter via at least one of: a medium access control-control element, MAC-CE, or a further DCI for uplink channel scheduling.
[0127] In some example embodiments, the first apparatus comprises a terminal device and the second apparatus comprises a network device.
[0128] In some example embodiments, a first apparatus capable of performing any of the method 700 (for example, the first apparatus 110 in FIG. 1) may comprise means for performing the respective operations of the method 700. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The first apparatus may be implemented as or included in the first apparatus 110 in FIG. 1.
[0129] In some example embodiments, the first apparatus comprises means for receiving, from the second apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information; means for selecting the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state; means for determining scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; and means for performing the transmission on the uplink data channel by using the determined scheduling information.
[0130] In some example embodiments, the plurality of aperiodic triggering states have been pre-configured to the first apparatus.
[0131] In some example embodiments, the first apparatus further comprises: means for receiving, from the second apparatus, a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information.
[0132] In some example embodiments, the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.
[0133] In some example embodiments, the indication of the aperiodic triggering state is included in the same DCI as allocated resources for downlink data.
[0134] In some example embodiments, the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI for the downlink data channel scheduling.
[0135] In some example embodiments, the aperiodic triggering state indicates one or more parameters comprising at least one of: a location of the pre-configured uplink resources in a time and frequency domain; a modulation and coding scheme associated with an uplink transmission on the uplink data channel; one or more antenna ports to be used for the uplink transmission; or sounding reference signal resource indicator, SRI, associated with the uplink transmission.
[0136] In some example embodiments, the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.
[0137] In some example embodiments, an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.
[0138] In some example embodiments, at least a portion of the one or more parameter is updated by at least one of: a medium access control-control element, MAC-CE, or a further DCI for uplink channel scheduling.
[0139] In some example embodiments, the first apparatus further comprises: means for in accordance with a determination that a sub-band non-overlapping full duplex, SBFD, uplink operation is triggered via a previous DCI, detect the DCI for the SBFD uplink operation.
[0140] In some example embodiments, the first apparatus comprises a terminal device and the second apparatus comprises a network device.
[0141] In some example embodiments, the first apparatus further comprises means for performing other operations in some example embodiments of the method 700 or the first apparatus 110. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the first apparatus.
[0142] In some example embodiments, a second apparatus capable of performing any of the method 800 (for example, the second apparatus 120 in FIG. 1) may comprise means for performing the respective operations of the method 800. The means may be implemented in any suitable form. For example, the means may be implemented in a circuitry or software module. The second apparatus may be implemented as or included in the second apparatus 120 in FIG. 1.
[0143] In some example embodiments, the second apparatus comprises means for transmitting, to a first apparatus via DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.
[0144] In some example embodiments, the second apparatus further comprises: means for determining a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information; and means for transmitting the configuration to the first apparatus.
[0145] In some example embodiments, the second apparatus further comprises: means for the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.
[0146] In some example embodiments, the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI.
[0147] In some example embodiments, the aperiodic triggering state indicates one or more parameters comprising at least one of: a location of the pre-configured uplink resources in a time and frequency domain; a modulation and coding scheme associated with an uplink transmission on the uplink data channel; one or more antenna ports to be used for the uplink transmission; or sounding reference signal resource indicator, SRI, associated with the uplink transmission.
[0148] In some example embodiments, the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.
[0149] In some example embodiments, an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.
[0150] In some example embodiments, the second apparatus further comprises: means for updating at least a portion of the one or more parameter via at least one of: a medium access control-control element, MAC-CE, or a further DCI for uplink channel scheduling.
[0151] In some example embodiments, the first apparatus comprises a terminal device and the second apparatus comprises a network device.
[0152] In some example embodiments, the second apparatus further comprises means for performing other operations in some example embodiments of the method 800 or the second apparatus 120. In some example embodiments, the means comprises at least one processor; and at least one memory storing instructions that, when executed by the at least one processor, cause the performance of the second apparatus.
[0153] FIG. 9 is a simplified block diagram of a device 900 that is suitable for implementing example embodiments of the present disclosure. The device 900 may be provided to implement a communication device, for example, the first apparatus 110 or the second apparatus 120 as shown in FIG. 1. As shown, the device 900 includes one or more processors 910, one or more memories 920 coupled to the processor 910, and one or more communication modules 940 coupled to the processor 910.
[0154] The communication module 940 is for bidirectional communications. The communication module 940 has one or more communication interfaces to facilitate communication with one or more other modules or devices. The communication interfaces may represent any interface that is necessary for communication with other network elements. In some example embodiments, the communication module 940 may include at least one antenna.
[0155] The processor 910 may be of any type suitable to the local technical network and may include one or more of the following: general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples. The device 900 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
[0156] The memory 920 may include one or more non-volatile memories and one or more volatile memories. Examples of the non-volatile memories include, but are not limited to, a Read Only Memory (ROM) 924, an electrically programmable read only memory (EPROM) , a flash memory, a hard disk, a compact disc (CD) , a digital video disk (DVD) , an optical disk, a laser disk, and other magnetic storage and / or optical storage. Examples of the volatile memories include, but are not limited to, a random access memory (RAM) 922 and other volatile memories that will not last in the power-down duration.
[0157] A computer program 930 includes computer executable instructions that are executed by the associated processor 910. The instructions of the program 930 may include instructions for performing operations / acts of some example embodiments of the present disclosure. The program 930 may be stored in the memory, e.g., the ROM 924. The processor 910 may perform any suitable actions and processing by loading the program 930 into the RAM 922.
[0158] The example embodiments of the present disclosure may be implemented by means of the program 930 so that the device 900 may perform any process of the disclosure as discussed with reference to FIG. 2 to FIG. 8. The example embodiments of the present disclosure may also be implemented by hardware or by a combination of software and hardware.
[0159] In some example embodiments, the program 930 may be tangibly contained in a computer readable medium which may be included in the device 900 (such as in the memory 920) or other storage devices that are accessible by the device 900. The device 900 may load the program 930 from the computer readable medium to the RAM 922 for execution. In some example embodiments, the computer readable medium may include any types of non-transitory storage medium, such as ROM, EPROM, a flash memory, a hard disk, CD, DVD, and the like. The term “non-transitory, ” as used herein, is a limitation of the medium itself (i.e., tangible, not a signal) as opposed to a limitation on data storage persistency (e.g., RAM vs. ROM) .
[0160] FIG. 10 shows an example of the computer readable medium 1000 which may be in form of CD, DVD or other optical storage disk. The computer readable medium 1000 has the program 930 stored thereon.
[0161] Generally, various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, and other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. Although various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representations, it is to be understood that the block, apparatus, system, technique or method described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
[0162] Some example embodiments of the present disclosure also provide at least one computer program product tangibly stored on a computer readable medium, such as a non-transitory computer readable medium. The computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target physical or virtual processor, to carry out any of the methods as described above. Generally, program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types. The functionality of the program modules may be combined or split between program modules as desired in various embodiments. Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
[0163] Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. The program code may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program code, when executed by the processor or controller, cause the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
[0164] In the context of the present disclosure, the computer program code or related data may be carried by any suitable carrier to enable the device, apparatus or processor to perform various processes and operations as described above. Examples of the carrier include a signal, computer readable medium, and the like.
[0165] The computer readable medium may be a computer readable signal medium or a computer readable storage medium. A computer readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of the computer readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
[0166] Further, although operations are depicted in a particular order, this should not be understood as requiring that such operations be performed in the particular order shown or in sequential order, or that all illustrated operations be performed, to achieve desirable results. In certain circumstances, multitasking and parallel processing may be advantageous. Likewise, although several specific implementation details are contained in the above discussions, these should not be construed as limitations on the scope of the present disclosure, but rather as descriptions of features that may be specific to particular embodiments. Unless explicitly stated, certain features that are described in the context of separate embodiments may also be implemented in combination in a single embodiment. Conversely, unless explicitly stated, various features that are described in the context of a single embodiment may also be implemented in a plurality of embodiments separately or in any suitable sub-combination.
[0167] Although the present disclosure has been described in languages specific to structural features and / or methodological acts, it is to be understood that the present disclosure defined in the appended claims is not necessarily limited to the specific features or acts described above. Rather, the specific features and acts described above are disclosed as example forms of implementing the claims.
Claims
1.A first apparatus comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the first apparatus at least to:receive, from the second apparatus via downlink control information, DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information;select the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state;determine scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; andperform the uplink transmission according to the determined scheduling information.2.The first apparatus of claim 1, wherein the plurality of aperiodic triggering states have been pre-configured to the first apparatus.3.The first apparatus of claim 1 or 2, wherein the first apparatus is caused to:receive, from the second apparatus, a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information.4.The first apparatus of claim 3, wherein the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.5.The first apparatus of any of claims 1-4, wherein the indication of the aperiodic triggering state is included in the same DCI as allocated resources for downlink data.6.The first apparatus of any of claims 1-5, wherein the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI for the downlink data channel scheduling.7.The first apparatus of any of claims 1-6, wherein the aperiodic triggering state indicates one or more parameters comprising at least one of:a location of the pre-configured uplink resources in a time and frequency domain;a modulation and coding scheme associated with an uplink transmission on the uplink data channel;one or more antenna ports to be used for the uplink transmission; orsounding reference signal resource indicator, SRI, associated with the uplink transmission.8.The first apparatus of any of claims 1-7, wherein the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.9.The first apparatus of claims 8, wherein an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.10.The first apparatus of claim 7, wherein at least a portion of the one or more parameter is updated by at least one of:a medium access control-control element, MAC-CE, ora further DCI for uplink channel scheduling.11.The first apparatus of any of claims 1-6, wherein the first apparatus is caused to:in accordance with a determination that a sub-band non-overlapping full duplex, SBFD, uplink operation is triggered via a previous DCI, detect the DCI for the SBFD uplink operation.12.The first apparatus of any of claims 1-11, wherein the first apparatus comprises a terminal device and the second apparatus comprises a network device.13.A second apparatus comprising:at least one processor; andat least one memory storing instructions that, when executed by the at least one processor, cause the second apparatus at least to:transmit, to a first apparatus via downlink control information, DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.14.The second apparatus of claim 13, wherein the second apparatus is caused to:determine a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information; andtransmit the configuration to the first apparatus.15.The second apparatus of claim 13 or 14, wherein the second apparatus is caused to:the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.16.The second apparatus of claim any of claims 13-15, wherein the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI.17.The second apparatus of any of claims 13-16, wherein the aperiodic triggering state indicates one or more parameters comprising at least one of:a location of the pre-configured uplink resources in a time and frequency domain;a modulation and coding scheme associated with an uplink transmission on the uplink data channel;one or more antenna ports to be used for the uplink transmission; orsounding reference signal resource indicator, SRI, associated with the uplink transmission.18.The second apparatus of any of claims 13-17, wherein the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.19.The second apparatus of claims 18, wherein an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.20.The second apparatus of claim 17, wherein the second apparatus is caused to:update at least a portion of the one or more parameter via at least one of:a medium access control-control element, MAC-CE, ora further DCI for uplink channel scheduling.21.The second apparatus of any of claims 13-20, wherein the first apparatus comprises a terminal device and the second apparatus comprises a network device.22.A method comprising:receiving, at a first apparatus from the second apparatus via downlink control information, DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information;selecting the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state;determining scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; andperforming the transmission on the uplink data channel by using the determined scheduling information.23.The method of claim 22, wherein the plurality of aperiodic triggering states have been pre-configured to the first apparatus.24.The method of claim 22 or 23, further comprising:receiving, from the second apparatus, a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information.25.The method of claim 24, wherein the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.26.The method of any of claims 22-25, wherein the indication of the aperiodic triggering state is included in the same DCI as allocated resources for downlink data.27.The method of any of claims 22-26, wherein the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI for the downlink data channel scheduling.28.The method of any of claims 22-27, wherein the aperiodic triggering state indicates one or more parameters comprising at least one of:a location of the pre-configured uplink resources in a time and frequency domain;a modulation and coding scheme associated with an uplink transmission on the uplink data channel;one or more antenna ports to be used for the uplink transmission; orsounding reference signal resource indicator, SRI, associated with the uplink transmission.29.The method of any of claims 22-28, wherein the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.30.The method of claims 29, wherein an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.31.The method of claim 28, wherein at least a portion of the one or more parameter is updated by at least one of:a medium access control-control element, MAC-CE, ora further DCI for uplink channel scheduling.32.The method of any of claims 22-27, further comprising:in accordance with a determination that a sub-band non-overlapping full duplex, SBFD, uplink operation is triggered via a previous DCI, detect the DCI for the SBFD uplink operation.33.The method of any of claims 22-32, wherein the first apparatus comprises a terminal device and the second apparatus comprises a network device.34.A method comprising:transmitting, from a second apparatus to a first apparatus via downlink control information, DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.35.The method of claim 34, further comprising:determining a configuration of the plurality of aperiodic triggering states for the uplink data channel, wherein each of the plurality of aperiodic triggering states is indicative of pre-configured uplink scheduling information; andtransmitting the configuration to the first apparatus.36.The method of claim 34 or 35, further comprising:the pre-configured uplink scheduling information at least comprises the pre-configured uplink resources, and wherein the pre-configured uplink resources are resources on a sub-band non-overlapping full duplex, SBFD, uplink sub-band.37.The method of claim any of claims 34-36, wherein the indication of the aperiodic triggering state is indicated in an aperiodic physical uplink shared channel, PUSCH, request field in the DCI.38.The method of any of claims 34-37, wherein the aperiodic triggering state indicates one or more parameters comprising at least one of:a location of the pre-configured uplink resources in a time and frequency domain;a modulation and coding scheme associated with an uplink transmission on the uplink data channel;one or more antenna ports to be used for the uplink transmission; orsounding reference signal resource indicator, SRI, associated with the uplink transmission.39.The method of any of claims 34-38, wherein the indication of the aperiodic triggering state is indicated in at least one physical uplink control channel, PUCCH, field in the DCI.40.The method of claims 39, wherein an additional bit is added in the DCI to indicate whether the at least one PUCCH field is used for indicating the aperiodic triggering state.41.The method of claim 38, further comprising:updating at least a portion of the one or more parameter via at least one of:a medium access control-control element, MAC-CE, ora further DCI for uplink channel scheduling.42.The method of any of claims 34-41, wherein the first apparatus comprises a terminal device and the second apparatus comprises a network device.43.A first apparatus comprising:means for receiving, from the second apparatus via downlink control information, DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information;means for selecting the aperiodic triggering state among the plurality of aperiodic triggering states according to the received indication of the aperiodic triggering state;means for determining scheduling information for a transmission on the uplink data channel based on the selected aperiodic triggering state; andmeans for performing the transmission on the uplink data channel by using the determined scheduling information.44.A second apparatus comprising:means for transmitting, to a first apparatus via downlink control information, DCI for downlink data channel scheduling, an indication of an aperiodic triggering state, wherein the indication of the aperiodic triggering state indicates one of a plurality of aperiodic triggering states for an uplink data channel, wherein the plurality of aperiodic triggering states represent different pre-configured uplink scheduling information.45.A computer readable medium comprising instructions stored thereon for causing an apparatus at least to perform the method of any of claims 22-33 or the method of any of claims 34-42.
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L1 activation and adaptation of l2 CLI reporting
US20240049022A1