Resource information of ai / ML model based transmissions
By using reference signals and two-part control information to align resource allocation with AI/ML model outputs, the inefficiencies in 5G systems are addressed, enhancing transmission efficiency and reducing resource wastage.
Patent Information
- Application Number
- PCT/CN2024/095121
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-07-31
AI Technical Summary
In existing 5G systems, the alignment of AI/ML model outputs with allocated time/frequency resources is not well managed, leading to inefficiencies and resource wastage in uplink and downlink transmissions between base stations and user equipment.
Mechanisms are introduced to align resource information between base stations and user equipment by using reference signals and two-part control information to indicate time/frequency resources, power adjustments, and model processing details, ensuring efficient transmission.
This approach enhances transmission efficiency by aligning resource allocation with AI/ML model outputs, reducing wasted resources and ensuring proper allocation for uplink and downlink transmissions.
Smart Images

Figure CN2024095121_31072025_PF_FP_ABST
Abstract
Description
RESOURCE INFORMATION OF AI / ML MODEL BASED TRANSMISSIONSTECHNICAL FIELD
[0001] This disclosure generally relates to handling transmissions in a wireless cellular access network and is specifically directed to mechanisms for communicating Artificial Intelligence / Machine Learning (AI / ML) model based transmissions, for example, between a base station and a User Equipment (UE) .BACKGROUND
[0002] Artificial Intelligence / Machine Learning (AI / ML) is a promising enhancement direction for mobile communication system, e.g., 5G (fifth generation) , 5G-A (5G-Advanced) and 6G (sixth generation) . With the introduction of AI / ML technology into the mobile communication system, the system operating efficiency is expected to be improved, for example, by reducing the overhead of reference signals via AI / ML inference and prediction.
[0003] For a communication system with AI / ML technology, an AI / ML model is adopted, for example, to perform inference. Generally, a model may refer to a functionality, function, functionality module, function module, processing method, information processing method, implementation, feature, feature group, configuration, configuration set, dataset (e.g., for model training) , or data-driven algorithms. Generally, these models are performed, calculated, or processed by User Equipment (UE) , but may also be performed at a base station. In various examples, a model may be a data driven algorithm that applies AI / ML techniques to generate a set of outputs based on a set of inputs. Alternatively, a model can be linear or non-linear algorithms or combination of both algorithms. In addition, functionality may refer to a feature enabled by the AI / ML model. Alternatively, functionality may refer to a set of parameters or configurations for one feature. For example, a UE may adopt a convolutional neural network (CNN) model to predict the beams for the communication, and the CNN model is the model and the beam prediction is the functionality. Different models and / or functionalities may be associated with different configurations (e.g., Radio Resource Control (RRC) configuration) . Model activation may refer to activating the corresponding configuration for the UE. Similarly, model deactivation, switching, and fallback may refer to deactivating the corresponding configuration, switching the configuration, and falling back to a configuration without the model, respectively.
[0004] AI / ML models can also be applied to perform coding / decoding and modulation / demodulation, etc. In this document, we present solutions for communication systems (e.g., 5G or 6G) to perform AI / ML model based transmission, e.g., AI / ML based coding and / or modulation.SUMMARY
[0005] This disclosure generally relates to handling transmissions in a wireless cellular access network and is specifically directed to mechanisms for communicating Artificial Intelligence / Machine Learning (AI / ML) model based transmissions between a base station (e.g., wireless access network node (WANN) ) and a user equipment (UE) (e.g., wireless terminal device) .
[0006] In the existing 5G system, a base station and a UE can align their understanding of the number of transmitted bits and number of modulation symbols. More specifically, the base station may, for example, schedule one Physical Downlink Shared Channel (PDSCH) or Physical Uplink Shared Channel (PUSCH) with multiple time / frequency resources and with one particular MIMO indication (e.g., MIMO layers) . The UE can determine the number of transmitted bits and the number of modulation symbols based on this information. Similar mechanism works for other channels. However, if AI / ML based coding and / or modulation is adopted, the model output may not be well aligned with the allocated time / frequency resources. Thus, some indications / mechanisms are needed to align the understanding between base station and the UE, e.g., via a resource information indication. For example, a base station may sched 100 resource blocks for the UE to transmit uplink data, but the UE will not know the number of bits that are output by the model and are to be transmitted before the model is processed. Instead, the UE may only know the number of output bits after processing. The base station does not know the number of bits to schedule for the transmission when even the UE doesn’t know this information. Additionally, the number of bits output by model could depend on channel status or any other number of different factors. Under the existing 5G system, the number of bits to be scheduled for are simply indicated by the base station. However, under the present disclosure, a flexibility is afforded so as to allow the UE and base station to work together in order to optimize the number of bits to accommodate. This gives flexibility to the UE to determine some scheduling parameters, and thereby provides for efficiency in the transmission, reducing the number of wasted resources and ensuring the properly amount or resources are allocated for uplink transmission.
[0007] In some exemplary implementations, a method performed by the WANN (e.g., base station) includes indicating, to a wireless terminal device (e.g., UE) , a set of time and / or frequency resources for the wireless terminal device to transmit an uplink transmission; receiving, from the wireless terminal device, a reference signal of the uplink transmission that indicates resource information of the uplink transmission, wherein the resource information indicates a subset of time and / or frequency resources of the set of time / frequency resources; and receiving, decoding, and / or demodulating the uplink transmission based on the resource information. Similarly, a method performed by the wireless terminal device includes receiving, from the WANN, an indication of a set of time and / or frequency resources for the wireless terminal device to transmit an uplink transmission; transmitting to the WANN a reference signal of the uplink transmission that indicates resource information of the uplink transmission, wherein the resource information indicates a subset of time and / or frequency resources of the set of time / frequency resources; and transmitting, to the WANN, the uplink transmission based on the resource information.
[0008] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the resource information indicates an actual number of frequency-domain resource blocks of the uplink transmission. In various embodiments, a starting symbol resource block the uplink transmission is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node, and / or the time-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the wireless access network node.
[0009] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the resource information indicates a time-domain repetition number of the uplink transmission. In various embodiments, a starting symbol for a first uplink transmission or a first uplink transmission repetition is a first symbol of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission, and / or other uplink transmission repetitions are allocated consecutively in time-domain, and / or frequency-domain resources for the uplink transmission are the same as the set of frequency resources indicated by the wireless access network node.
[0010] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the resource information indicates a frequency-domain repetition number of the uplink transmission. In various embodiments, a starting resource block for a first uplink transmission or a first uplink transmission repetition is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission, and / or other uplink transmission repetitions are allocated consecutively in frequency-domain, and / or time-domain resources for the uplink transmission are the same as the set of time resources indicated by the wireless access network node.
[0011] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the resource information indicates power control information. In various embodiments, the power control information includes a power adjustment parameter (Δp) , where the power adjustment parameter indicates to the wireless terminal device to increase or decrease a power of the uplink transmission by Δp.
[0012] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the reference signal is scrambled with a sequence, where each sequence is mapped with an index. The method may then include the WANN determining the index by receiving the reference signal. Similarly, in various embodiments of the method, the reference signal is scrambled with a sequence, where each sequence is mapped to a resource information or an index of resource information. The method may then include the WANN determining the resource information by receiving the reference signal.
[0013] In other exemplary implementations, a method performed by the WANN includes indicating, to the wireless terminal device, a set of candidate time and / or frequency resources for transmission of a first part of a control information, wherein the first part of the control information schedules an uplink transmission, and indicating, to the wireless terminal device, the first part of the control information. The method also includes receiving, from the wireless terminal device, an indication of a second part of the control information, and receiving, from the wireless terminal device, the uplink transmission based on the first part of the control information and / or the second part of the control information. Similarly, a method performed by the wireless terminal device includes receiving, from the WANN, an indication of a set of candidate time and / or frequency resources for transmission of a first part of a control information, wherein the first part of the control information schedules an uplink transmission, and receiving, from the WANN, an indication of the first part of the control information. The method also includes transmitting, to the WANN, an indication of a second part of the control information, and transmitting, to the WANN, the uplink transmission based on the first part of the control information and / or the second part of the control information.
[0014] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the first part of the control information indicates a nominal time and / or frequency resource, and the second part of the control information and the uplink transmission are transmitted within the nominal time and / or frequency resource. In various embodiments, the first part of the control information indicates whether the uplink transmission is processed by a model or not. In various embodiments, the first part of the control information indicates a number of layers of a model, where each number of layers of the model corresponds to a number of modulation symbols.
[0015] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the methods may include the wireless terminal device transmitting, and the WANN receiving, the second part of the control information in a first L time-domain symbols of the nominal time and / or frequency resource, wherein L is an integer number larger than 0 and smaller than a number of time-domain symbols of the nominal time and / or frequency resource. In various embodiments, L is indicated by the first part of the control information, or is configured by the wireless access network node.
[0016] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the methods may include the wireless terminal device transmitting, and the WANN receiving, the second part of the control information in a first F1 frequency-domain resource blocks of the nominal time and / or frequency resource, wherein F1 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource. In various embodiments, F1 is indicated by the first part of the control information, or is configured by the wireless access network node.
[0017] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the methods may include the wireless terminal device transmitting, and the WANN receiving, the second part of the control information in a last F2 frequency-domain resource blocks of the nominal time and / or frequency resource, wherein F2 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource. In various embodiments, wherein F2 is indicated by the first part of the control information, or is configured by the wireless access network node.
[0018] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, the second part of the control information indicates whether the uplink transmission is processed by a model or not. In certain embodiments, the second part of the control information indicates an amount of remaining data at the wireless terminal device side. In certain embodiments, the second part of the control information indicates a channel metric of the uplink transmission. In certain embodiments, the second part of the control information indicates a number of layers of a model, where each number of layers corresponds to a number of modulation symbols of a model output.
[0019] In some exemplary implementations, which may be combined with any of the other exemplary implementations disclosed herein, a spatial relation of the transmission of the second part of the control information is linked to a reference signal of the transmission of the first part of the control information. In various embodiments, a spatial relation of the uplink transmission is linked to a reference signal of the transmission of the second part of the control information. In certain embodiments, a spatial relation of the uplink transmission is the same as a spatial relation of the transmission of the second part of the control information. In various embodiments, a same power control parameter is applied to the transmission of the second part of the control information and the uplink transmission. In various embodiments, a modulation order of the transmission of the second part of the control information is not larger than a modulation order of the uplink transmission.
[0020] In some other implementations, an apparatus for wireless communication such as a network device is disclosed. The network device may include one or more processors and one or more memories, wherein the one or more processors are configured to read computer code from the one or more memories to implement any one of the methods above. The apparatus for wireless communication may be the wireless access network node (e.g., base station) or the wireless terminal device (e.g., UE) .
[0021] In yet some other implementations, a computer program product is disclosed. The computer program product may include a non-transitory computer-readable medium with computer code stored thereupon, the computer code, when executed by one or more processors, causing the one or more processors to implement any one of the methods above.
[0022] The above embodiments and other aspects and alternatives of their implementations are explained in greater detail in the drawings, the descriptions, and the claims below.BRIEF DESCRIPTION OF THE DRAWINGS
[0023] FIG. 1 shows a wireless access network with an exemplary uplink, downlink, and control channel configuration.
[0024] FIG. 2 shows various example processing components of the wireless terminal device and the wireless access network node of FIG. 1.DETAILED DESCRIPTION
[0025] The technology and examples of implementations and / or embodiments described in this disclosure can be used to facilitate over-the-air radio resource allocation, configuration, and signaling in wireless access networks as well as operational configuration of a UE and / or a base station within the wireless access networks. The term “exemplary” is used to mean “an example of” and unless otherwise stated, does not imply an ideal or preferred example, implementation, or embodiment. Section headers are used in the present disclosure to facilitate understanding of the disclosed implementations and are not intended to limit the disclosed technology in the sections only to the corresponding section. The disclosed implementations may be further embodied in a variety of different forms and, therefore, the scope of this disclosure or claimed subject matter is intended to be construed as not being limited to any of the embodiments set forth below. The various implementations may be embodied as methods, devices, components, systems, or non-transitory computer readable media. Accordingly, embodiments of this disclosure may, for example, take the form of hardware, software, firmware or any combination thereof.
[0026] This disclosure is directed to handling transmissions in a wireless cellular access network and is specifically directed to mechanisms for managing models activated at a User Equipment (UE) side according to UE’s capability.
[0027] Wireless Network Overview
[0028] A wireless communication network may include a radio access network for providing network access to wireless terminal devices, and a core network for routing data between the access networks or between the wireless network and other types of data networks. In a wireless access network, radio resources are provided for allocation and used for transmitting data and control information. FIG. 1 shows an exemplary wireless access network 100 including a wireless access network node (WANN) or wireless base station 102 (herein referred to as wireless base station, base station, wireless access node, wireless access network node, or WANN) and a wireless terminal device or user equipment (UE) 104 (herein referred to as user equipment, UE, terminal device, or wireless terminal device) that communicates with one another via over-the-air (OTA) radio communication resources 106. The wireless access network 100 may be implemented as, as for example, a 2G, 3G, 4G / LTE, or 5G cellular radio access network. Correspondingly, the base station 102 may be implemented as a 2G base station, a 3G node B, an LTE eNB, or a 5G New Radio (NR) gNB. The user equipment 104 may be implemented as mobile or fixed communication devices installed with mobile identity modules for accessing the base station 102. The user equipment 104 may include but is not limited to mobile phones, laptop computers, tablets, personal digital assistants, wearable devices, distributed remote sensor devices, and desktop computers. Alternatively, the wireless access network 100 may be implemented as other types of radio access networks, such as Wi-Fi, Bluetooth, ZigBee, and WiMax networks.
[0029] FIG. 2 further shows example processing components of the WANN 102 and the UE 104 of FIG. 1. The UE 104, for example, may include transceiver circuitry 206 coupled to one or more antennas 208 to effectuate wireless communication with the WANN 102 (or to other UEs) . The transceiver circuitry 206 may also be coupled to a processor 210, which may also be coupled to a memory 212 or other storage devices. The memory 212 may be transitory or non-transitory and may store therein computer instructions or code which, when read and executed by the processor 210, cause the processor 210 to implement various ones of the, functions, methods, and processes of the UE 104 described herein. The memory 212 may also store therein, and the processor 210 may also be configured to execute one or more models (e.g., Artificial Intelligence / Machine Learning (AI / ML) models) to perform one or more functionalities (e.g., AI / ML functionalities) . The memory 212 may also be utilized and allocated for buffering UL and DL transmissions in each band / carrier. The memory 212 may include multiple memory modules assigned to different functions (such as program memory, base band memory, and / or RF memory, to name a few) . Likewise, the WANN 102 may include transceiver circuitry 214 coupled to one or more antennas 216, which may include an antenna tower 218 in various forms, to effectuate wireless communications with the UE 104. The transceiver circuitry 214 may be coupled to one or more processors 220, which may further be coupled to a memory 222 or other storage devices. The memory 222 may be transitory or non-transitory and may store therein instructions or code that, when read and executed by the one or more processors 220, cause the one or more processors 220 to implement various functions, methods, and processes of the WANN 102 described herein.
[0030] Wireless Communication Resource Scheduling / Signaling
[0031] Returning to FIG. 1, the radio communication resources for the over-the-air interface 106 may include a combination of frequency, time, and / or spatial communication resources organized into various resource units or elements in frequency, time, and / or space. The radio communication resources 106 in frequency domain may include portions of licensed radio frequency bands, portions of unlicensed ration frequency bands, or portions of a mix of both licensed and unlicensed radio frequency bands. The radio communication resources 106 available for carrying the wireless communication signals between the base station 102 and user equipment 104 may be further divided into physical downlink channels 110 for transmitting wireless signals from the base station 102 to the user equipment 104 and physical uplink channels 120 for transmitting wireless signals from the user equipment 104 to the base station 102. The physical downlink channels 110 may further include physical downlink control channels (PDCCHs) 112 and physical downlink shared channels (PDSCHs) 114. Likewise, the physical uplink channels 120 may further include physical uplink control channels (PUCCHs) 122 and physical uplink shared channels (PUSCHs) 124. For simplification, other types of downlink and uplink channels are not shown in FIG. 1 but are within the scope of the current disclosure. The control channels PDCCHs 112 and PUCCHs 122 may be used for carrying control information in the form of control messages 116 and 126, herein referred to as Downlink Control Information (DCI) messages or Uplink Control Information (UCI) messages. The shared channels (shared between data and control information) PDSCHs 114 and PUSCHs 124 may be allocated and used for communicating downlink data transmissions 118 and uplink data transmissions 128 between the base station 102 and the user equipment 104.
[0032] The allocation and configuration of the radio communication resources associated with the data channels, such as the PDSCHs and the PUSCHs may be provided by one or more resource scheduling DCIs carried in the PDCCHs. The PDCCHs may be shared by a plurality of UEs in the access network. In various approaches, a particular UE may be configured to perform blind decode procedures on a preconfigured UE-specific Search Space (USS) to detect and identify a payload of a resource scheduling DCI carried in the PDCCH that specifically targets the particular UE. The blind decoding may be performed on preconfigured monitoring occasions of the PDCCH associated with USS. Such monitoring occasions may be referred to as a set of PDCCH candidates. Each PDCCH candidate may be associated with a set of Control Channel Elements (CCEs) . The UE may specifically use its Radio Network Temporary Identifier (RNTI) to decode the PDCCH candidates. The RNTI may be used to demask a PDCCH candidate’s CRC. If no CRC error is detected, the UE determines that PDCCH candidate carries its own control information. The UE may then process the DCI and extract the resource allocation information pertaining to the PDSCH and / or PUSCH for receiving and / or transmitting data.
[0033] Description of New Mechanisms for Communicating Resource Information of AI / ML Model Based Transmissions
[0034] Embodiment 1 -Reference signal indicating resource information for uplink transmission.
[0035] For configured grant transmission, the base station 102 may configure a set of time / frequency resources for the UE 104 to transmit an uplink transmission, e.g., PUSCH or PUCCH. However, due to the introduction of AI / ML based coding and modulation, the number of modulation symbols (i.e., the model output) may not be aligned with the time / frequency resources that are allocated for the UE 104 by the base station 102. Without an aligned understanding on the occupied resources, the base station 102 may not be able to decode or demodulate the uplink transmission.
[0036] In various embodiments, the reference signal (e.g., Demodulation Reference Signal (DMRS) ) of the uplink transmission may indicate the resource information of the uplink transmission. The resource information may indicate the time / frequency resources of (e.g., a subset of) the set of time / frequency resources allocated by the base station 102 for the UE 104 for the uplink transmission. The base station 102 then receives, decodes, and / or demodulates the uplink transmission based on the resource information that is included in the reference signal.
[0037] The resource information can indicate the actual number of time-domain symbols of the uplink transmission. For example, the time-domain symbols can be orthogonal frequency-division multiplexing (OFDM) symbols. For example, if the base station 102 configures 14 time-domain symbols for the uplink transmission, the UE 104 may end up using 12 time-domain symbols for the uplink transmission. The starting symbol for the uplink transmission may be the first symbol of the set of time / frequency resources configured by the base station 102 for the uplink transmission, though in other examples, the starting symbol may be a symbol other than the first symbol. The frequency-domain resources for the uplink transmission may be the same as that configured by the base station 102. Alternatively, the resource information can indicate a ratio of time-domain symbols of the uplink transmission. The ratio of time-domain symbols can be defined as the actual number of time-domain symbols of the uplink transmission (e.g., those actually required for the uplink transmission) divided by the configured number of time-domain symbols of the uplink transmission.
[0038] Similarly, the resource information can indicate the actual number of frequency-domain resource blocks of the uplink transmission. For example, if the base station 102 configures 25 frequency-domain resource blocks for the uplink transmission, the UE 104 may end up using 20 frequency-domain resource blocks for the uplink transmission. The starting resource block for the uplink transmission may be the first resource block of the set time / frequency resources configured by the base station 102 for the uplink transmission, though in other examples, the starting resource block may be a resource block other than the first resource block. The time-domain resources for the uplink transmission may be the same as that configured by the base station 102. Alternatively, the resource information can indicate the ratio of frequency-domain resource blocks of the uplink transmission. The ratio of frequency-domain resource blocks can be defined as the actual number of frequency-domain resource blocks of the uplink transmission (e.g., those actually required for the uplink transmission) divided by the configured number of frequency-domain resource blocks of the uplink transmission.
[0039] The resource information can indicate the time-domain repetition number of the uplink transmission. For example, if the base station 102 configures 14 time-domain symbols for the uplink transmission, the UE 104 may end up using two time-domain symbols for the uplink transmission with repetition seven times. The starting symbol for the first uplink transmission (or the first uplink transmission repetition) may be the first symbol of resources configured by the base station 102 for the uplink transmission, though in other examples, the starting symbol may be a symbol other than the first symbol. The other uplink transmission repetitions may be allocated consecutively in time-domain. The frequency-domain resources for the uplink transmission can be the same as that configured by the base station 102. The UE 104 may adjust the repetition number to adjust the coding rate of the uplink transmission.
[0040] Similarly, the resource information can indicate the frequency-domain repetition number of the uplink transmission. For example, if the base station 102 configures 25 frequency-domain resource blocks for the uplink transmission, the UE 104 may end up using five frequency-domain resource blocks for the uplink transmission with repetition five times. The starting resource block for the first uplink transmission (or the first uplink transmission repetition) may be the first resource block of resources configured by the base station 102 for the uplink transmission, though in other examples, the starting resource block may be a resource block other than the first resource block. The other uplink transmission repetitions may be allocated consecutively in frequency-domain. The time-domain resources for the uplink transmission can be the same as that configured by the base station 102. The UE 104 may adjust the repetition number to adjust the coding rate of the uplink transmission.
[0041] The resource information can indicate power control information. For example, the UE 104 may repeat the uplink transmission for multiple times, and then the power allocated for the uplink transmission can be reduced. For another example, the UE 104 may multiplex the uplink transmission with another uplink transmission, then the power allocated for the uplink transmission can be adjusted. In one embodiment, the power control information includes a power adjustment parameter Δp, where the parameter indicates the UE 104 to increase or decrease the power of the uplink transmission by Δp. The power adjustment parameter Δp may be in the units of dB. In another embodiment, the power control information includes a power adjustment ratio Δq, where the power adjustment ratio indicates the UE 104 to increase or decrease the power of the uplink transmission by Δq, e.g., Δq=20%.
[0042] The resource information may carry an index, and the index may be mapped to one of the following alternatives for the uplink transmission:
[0043] Alt. 1: the index is mapped with the number of transmitted bits of the uplink transmission.
[0044] Alt. 2: the index is mapped with the number of modulation symbols of the uplink transmission.
[0045] Alt. 3: the index is mapped with the number of transmitted bits and the number modulation symbols of the uplink transmission.
[0046] Alt. 4: the index is mapped with the transmission efficiency of the uplink transmission. The transmission efficiency may be determined by one of the following alternatives.
[0047] Alt. 4-1: The transmission efficiency is the number modulation symbols divided by the number of transmitted bits of the uplink transmission.
[0048] Alt. 4-2: The transmission efficiency is the number transmitted bits divided by the number of modulation symbols of the uplink transmission.
[0049] Alt. 5: the index is mapped with the transmission efficiency and the number of transmitted bits of the uplink transmission.
[0050] Alt. 6: the index is mapped with the transmission efficiency and the number of modulation symbols of the uplink transmission.
[0051] The resource information may carry an index. The mapping between the index and a candidate value of the resource information can be configured by the base station 102 or can be predefined. The base station 102 may determine the corresponding resource information based on the index.
[0052] The reference signal may be scrambled with a sequence, where each sequence is mapped with an index. The base station 102 may determine the index by receiving the reference signal. Alternatively, the reference signal may be scrambled with a sequence, where each sequence is mapped to one resource information. The base station 102 may determine the resource information or an index of the resource information by receiving the reference signal.
[0053] For example, if the resource information indicates the actual number of time-domain symbols of the uplink transmission, the following example mapping can be configured by the base station 102 or predefined:
[0054] In various examples, the reference signal may be DMRS (Demodulation reference signal) , SRS (Sounding reference signal) , or another reference signal.
[0055] As such, in accordance with various embodiments, a method performed by the wireless access network node (WANN) 102 (e.g., base station 102) includes indicating, to a wireless terminal device 104 (e.g., UE 104) , a set of time and / or frequency resources for the wireless terminal device 104 to transmit an uplink transmission. The method also includes the WANN 102 receiving, from the wireless terminal device 104, a reference signal of the uplink transmission that indicates resource information of the uplink transmission, wherein the resource information indicates a subset of time and / or frequency resources of the set of time / frequency resources, and the WANN 102 receiving, decoding, and / or demodulating the uplink transmission based on the resource information.
[0056] Similarly, a method performed by the wireless terminal device 104 includes receiving, from the WANN 102, an indication of a set of time and / or frequency resources for the wireless terminal device 104 to transmit an uplink transmission. The method also includes the wireless terminal device 104 transmitting to the WANN 102 a reference signal of the uplink transmission that indicates resource information of the uplink transmission, wherein the resource information indicates a subset of time and / or frequency resources of the set of time / frequency resources, and transmitting, to the WANN 102, the uplink transmission based on the resource information.
[0057] In various embodiments of the method, the resource information indicates an actual number of time-domain symbols of the uplink transmission. In various embodiments, a starting symbol for the uplink transmission is a first symbol of the set of time and / or frequency resources indicated by the WANN 102, and / or the frequency-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the WANN 102.
[0058] In various embodiments of the method, the resource information indicates an actual number of frequency-domain resource blocks of the uplink transmission. In various embodiments, a starting symbol resource block the uplink transmission is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node, and / or the time-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the wireless access network node.
[0059] In various embodiments of the method, the resource information indicates a time-domain repetition number of the uplink transmission. In various embodiments, a starting symbol for a first uplink transmission or a first uplink transmission repetition is a first symbol of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission, and / or other uplink transmission repetitions are allocated consecutively in time-domain, and / or frequency-domain resources for the uplink transmission are the same as the set of frequency resources indicated by the wireless access network node.
[0060] In various embodiments of the method, the resource information indicates a frequency-domain repetition number of the uplink transmission. In various embodiments, a starting resource block for a first uplink transmission or a first uplink transmission repetition is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission, and / or other uplink transmission repetitions are allocated consecutively in frequency-domain, and / or time-domain resources for the uplink transmission are the same as the set of time resources indicated by the wireless access network node.
[0061] In various embodiments of the method, the resource information indicates power control information. In various embodiments, the power control information includes a power adjustment parameter (Δp) , where the power adjustment parameter indicates to the wireless terminal device to increase or decrease a power of the uplink transmission by Δp.
[0062] In various embodiments of the method, the reference signal is scrambled with a sequence, where each sequence is mapped with an index. The method may then include the WANN 102 determining the index by receiving the reference signal. Similarly, in various embodiments of the method, the reference signal is scrambled with a sequence, where each sequence is mapped to a resource information or an index of resource information. The method may then include the WANN 102 determining the resource information by receiving the reference signal.
[0063] Embodiment 2 -Reference signal indicating resource information for downlink transmission.
[0064] The above solutions in embodiment 1 can also be applied for downlink transmission as well. In this case, the base station 102 may configure a set of time / frequency resources for the UE 104 to receive downlink transmission. In one embodiment, the reference signal of the downlink transmission may indicate the resource information of the downlink transmission. The resource information may indicate the time / frequency resources of the downlink transmission. The UE 104 receives, decodes, and / or demodulates the downlink transmission based on the resource information.
[0065] In a similar manner to embodiment 1, above, the resource information can indicate the actual number of time-domain symbols of the downlink transmission. For example, the time-domain symbol can be an OFDM symbol. If, for example, the base station 102 configures 14 time-domain symbols for the downlink transmission, the base station 102 may end up using 12 time-domain symbols for the downlink transmission. The starting symbol for the downlink transmission may be the first symbol of resources configured by the base station 102 for the downlink transmission, though in other examples, the starting symbol may be a symbol other than the first symbol. The frequency-domain resources for the downlink transmission can be the same as that configured by the base station 102. Alternatively, the resource information can indicate the ratio of time-domain symbols of the downlink transmission. The ratio of time-domain symbols can be defined as the actual number of time-domain symbols of the downlink transmission divided by the configured number of time-domain symbols of the downlink transmission.
[0066] Similarly, the resource information can indicate the actual number of frequency-domain resource blocks of the downlink transmission. If, for example the base station 102 configures 25 frequency-domain resource blocks for the downlink transmission, the base station 102 may end up using 20 frequency-domain resource blocks for the downlink transmission. The starting resource block for the downlink transmission may be the first resource block of resources configured by the base station 102 for the downlink transmission, though in other examples, the starting resource block may be a resource block other than the first resource block. The time-domain resources for the downlink transmission can be the same as that configured by the base station 102. Alternatively, the resource information can indicate the ratio of frequency-domain resource blocks of the downlink transmission. The ratio of frequency-domain resource blocks can be defined as the actual number of frequency-domain resource blocks of the downlink transmission divided by the configured number of frequency-domain resource blocks of the downlink transmission.
[0067] The resource information can indicate the time-domain repetition number of the downlink transmission. For example, if the base station 102 configures 14 time-domain symbols for the downlink transmission, the base station 102 may end up with using two time-domain symbols for the downlink transmission with repetition seven times. The starting symbol for the first downlink transmission (or the first downlink transmission repetition) may be the first symbol of resources configured by the base station 102 for the downlink transmission, though in other examples, the starting symbol may be a symbol other than the first symbol. The other downlink transmission repetitions may be allocated consecutively in time-domain. The frequency-domain resources for the downlink transmission can be the same as that configured by the base station 102. The base station 102 may adjust the repetition number to adjust the coding rate of the downlink transmission.
[0068] Similarly, the resource information can indicate the frequency-domain repetition number of the downlink transmission. For example, if the base station 102 configures 25 frequency-domain resource blocks for the downlink transmission, the base station 102 may end up using five frequency-domain resource blocks for the downlink transmission with repetition five times. The starting resource block for the first downlink transmission (or the first downlink transmission repetition) may be the first resource block of resources configured by the base station for the downlink transmission, though in other examples, the starting resource block may be a resource block other than the first resource block. The other downlink transmission repetitions may be allocated consecutively in frequency-domain. The time-domain resources for the downlink transmission can be the same as that configured by the base station 102. The base station 102 may adjust the repetition number to adjust the coding rate of the downlink transmission.
[0069] The resource information can indicate power control information. For example, the base station 102 may repeat the downlink transmission for multiple times and then the power allocated for the downlink transmission can be reduced. For another example, the base station 102 may multiplex the downlink transmission with another downlink transmission, then the power allocated for the downlink transmission can be adjusted. In one embodiment, the power control information includes one power adjustment parameter Δp, where the parameter indicates to the UE 104 that base station 102 has increased or decreased the power of the downlink transmission by Δp. The power adjustment parameter Δp may be in the units of dB. In another embodiment, the power control information includes one power adjustment ratio Δq, where the power adjustment ratio indicates to the UE 104 that the base station 102 has increased or decreased the power of the downlink transmission by Δq, e.g., Δq=20%.
[0070] The resource information may carry an index. The mapping between index and candidate value of the resource information can be configured by the base station 102 or predefined. The UE 104 may determine the corresponding resource information based on the index.
[0071] The reference signal may be scrambled with a sequence, where each sequence is mapped with an index. The UE 104 may determine the index by receiving the reference signal. Similarly, the reference signal may be scrambled with a sequence, where each sequence is mapped to one resource information. The UE 104 may determine the resource information by receiving the reference signal.
[0072] The reference signal may be PSS (Primary synchronization signal) , SSS (Secondary synchronization signal) , DMRS (Demodulation reference signal) or another reference signal.
[0073] As such, in accordance with various embodiments, the methods described above with respect to embodiment 1 may be modified to indicate the reference signal that indicates resource information for downlink transmission instead of uplink transmission.
[0074] Embodiment 3 –Utilizing two parts of control information.
[0075] In existing wireless communication systems, the uplink transmission is scheduled by the base station. The base station indicates the necessary scheduling parameters to the UE, and the UE transmits the uplink transmission based on these scheduling parameters. However, in the case that the uplink transmission is generated by an AI / ML model, the base station 102 may not be aware of all the details of the model at the UE 104 side. In this case, it may be advantageous to let the UE 104 determine some of the scheduling parameters. Thus, two parts of control information can be defined, one is determined by the base station 102 and another is determined by the UE 104 itself.
[0076] In various embodiments, the base station 102 configures the candidate time / frequency resource for the transmission of the first part of control information, where the first part of control information schedules uplink transmission. The base station 102 may indicate the first part of control information to the UE 104. The UE 104 receives the first part of control information. The UE 104 then indicates the second part of control information to the base station 102 and transmits an uplink transmission based on the first part of control information to the base station 102. The base station 102 receives the second part of the control information and receives the uplink transmission based on the second part of control information.
[0077] The first part of control information may indicate nominal time / frequency resource. The second part of the control information and the uplink transmission may be transmitted within the nominal time / frequency resource.
[0078] In one embodiment, the first part of the control information indicates whether the uplink transmission is processed by AI / ML model or not. The UE 104 generates the uplink transmission according to this indication. In addition, the second part of control information may be generated according to the indication. In other words, the information carried by the second part of control information in case the first part of control information indicates the uplink transmission is to be processed by AI / ML model may be different from the information carried by the second part of control information in case the first part of control information indicates the uplink transmission is not to be processed by the AI / ML model. The base station 102 may determine the second part of control information according to the indication that indicates whether the uplink transmission is processed by AI / ML model or not.
[0079] In another embodiment, the first part of the control information may indicate the number of layers of the AI / ML model, where each number of layers corresponds to a number of modulation symbols of the AI / ML model output. Different number of layers correspond to different number of modulation symbols.
[0080] In one embodiment, the UE 104 transmits the second part of control information in the first L time-domain symbols of the nominal time / frequency resource, though in other embodiments, the second part can be transmitted in other symbols than the first L symbols. The integer number L is larger than 0 and smaller than the time-domain symbols of the nominal time / frequency resource. The starting time-domain symbol of the second part of control information may be the starting time-domain symbol of the nominal time / frequency resource. The number L may be indicated by the first part of the control information or configured by the base station 102. The starting time-domain symbol of the uplink transmission may be the first symbol after the resource allocated for the second part of control information, i.e., the (L+1) th time-domain symbol.
[0081] In one embodiment, the UE 104 transmits the second part of control information in the first F1 frequency-domain resource blocks of the nominal time / frequency resource. The integer number F1 is larger than 0 and smaller than the frequency-domain resource blocks of the nominal time / frequency resource. The starting frequency-domain resource block of the second part of the control information may be the starting frequency-domain resource block of the nominal time / frequency resource. The number F1 may be indicated by the first part of the control information or configured by the base station 102. The starting frequency-domain resource block of the uplink transmission may be the first resource block after the resource allocated for the second part of control information, i.e., the (F1+1) th frequency-domain resource block.
[0082] In another embodiment, the UE 104 may transmit the second part of the control information in the last F2 frequency-domain resource blocks of the nominal time / frequency resource. The integer number F2 is larger than 0 and smaller than the frequency-domain resource blocks of the nominal time / frequency resource. The ending frequency-domain resource block of the second part of control information is the ending frequency-domain resource block of the nominal time / frequency resource. The number F2 may be indicated by the first part of the control information or configured by the base station 102. The ending frequency-domain resource block of the uplink transmission may be the first resource block before the resource allocated for the second part of control information, i.e., the (F2+1) th frequency-domain resource block from the top.
[0083] In another embodiment, the UE 104 may transmit the second part of the control information in the middle F3 frequency-domain resource blocks of the nominal time / frequency resource. The integer number F3 is larger than 0 and smaller than the frequency-domain resource blocks of the nominal time / frequency resource. The number F3 may be indicated by the first part of the control information or configured by the base station 102.
[0084] In one embodiment, the second part of control information indicates resource information as defined in embodiment 1, discussed above.
[0085] In one embodiment, the second part of the control information indicates whether the uplink transmission is processed by AI / ML model or not. This can be considered as a response to the corresponding indication in the first part of the control information, discussed above. For example, if the base station 102 indicates to the UE 104 to generate the uplink transmission via AI / ML model. However, the UE 104 may not be able to generate the uplink transmission via the AI / ML model due to the internal issue, e.g., memory restriction. Then, the UE 104 can respond to the base station 102 to indicate whether the uplink transmission is generated by the AI / ML model or not.
[0086] In another embodiment, the second part of the control information indicates the number of remaining data at the UE 104 side. The second part of the control information may indicate an index, and the index may be mapped with a range of remaining data to be sent at the UE 104 side. For example, the following example mapping may be configured by the base station 102 or predefined. The remaining data can be in the units of bites or bytes, or another suitable unit.
[0087] In another embodiment, the second part of the control information may indicate the channel metric of the uplink transmission. The channel metric may be served as the AI / ML model input to generate the uplink transmission and / or to decode / demodulate the uplink transmission. The channel metric may represent the current channel status, e.g., Channel Quality Indicator (CQI) or Signal to Interference plus Noise Ratio (SINR) .
[0088] In another embodiment, the second part of the control information may indicate the number of layers of the model, where each number of layers corresponds to a number of modulation symbols of the model output. Different number of layers may correspond to different number of modulation symbols. This can also be considered as a response to the first part of the control information.
[0089] In various embodiments, the spatial relation of the transmission of the second part of control information may be linked to the reference signal of the transmission of the first part of control information. For example, the base station 102 may configure the DMRS of the transmission of the first part of the control information as the reference signal for the spatial relation configuration for the transmission of the second part of the control information. In another embodiment, the spatial relation of the transmission of the second part of the control information may be linked to the transmission of the first part of the control information. In this case, the UE 104 follows the spatial relation information of the transmission of the first part of the control information to transmit the second part of the control information.
[0090] In another embodiment, the spatial relation of the uplink transmission may be linked to the reference signal of the transmission of the first part of the control information. In another embodiment, the spatial relation of the uplink transmission may be linked to the transmission of the first part of the control information. In this case, the UE 104 may follow the spatial relation information of the transmission of the first part of the control information to transmit the uplink transmission.
[0091] In another embodiment, the spatial relation of the uplink transmission may be linked to the reference signal of the transmission of the second part of the control information. In another embodiment, the spatial relation of the uplink transmission may be linked to the transmission of the second part of the control information. In this case, the UE 104 may follow the spatial relation information of the transmission of the second part of the control information to transmit the uplink transmission.
[0092] In one embodiment, the spatial relation of the uplink transmission is the same as the spatial relation of the transmission of the second part of the control information. In this case, the UE 104 may follow the spatial relation information of the transmission of the second part of control information to transmit the uplink transmission.
[0093] In one embodiment, the same power control parameter is applied to the transmission of the second part of the control information and the uplink transmission. In this case, the UE 104 doesn’t need to adjust its Tx chain during the transmission.
[0094] In one embodiment, the modulation order of the transmission of the second part of the control information is not larger than the modulation order of the uplink transmission. In this case, the reliability of the second part of the control information is higher than the uplink transmission as the second part of the control information is the prerequisite of the uplink transmission.
[0095] In one embodiment, the number of bits carried by the first part of the control information is not larger than the number of bits carried by the second part of the control information. In this case, the reliability of the first part of the control information is higher than the second part of the control information.
[0096] In addition, the second part of the control information can also indicate the following information: Modulation and coding scheme, Frequency hopping flag, Redundancy version, HARQ process number, New data indicator, and / or Padding bits.
[0097] As such, in accordance with various embodiments, a method performed by the WANN 102 (e.g., base station 102) includes indicating, to the wireless terminal device 104, a set of candidate time and / or frequency resources for transmission of a first part of a control information, wherein the first part of the control information schedules an uplink transmission, and indicating, to the wireless terminal device, the first part of the control information. The method also includes the WANN 102 receiving, from the wireless terminal device 104, an indication of a second part of the control information, and receiving, from the wireless terminal device 104, the uplink transmission based on the first part of the control information and / or the second part of the control information.
[0098] Similarly, a method performed by the wireless terminal device 104 includes receiving, from the WANN 102, an indication of a set of candidate time and / or frequency resources for transmission of a first part of a control information, wherein the first part of the control information schedules an uplink transmission, and receiving, from the WANN 102, an indication of the first part of the control information. The method also includes transmitting, to the WANN 102, an indication of a second part of the control information, and transmitting, to the WANN 102, the uplink transmission based on the first part of the control information and / or the second part of the control information.
[0099] In various embodiments of the methods, the first part of the control information indicates a nominal time and / or frequency resource, and the second part of the control information and the uplink transmission are transmitted within the nominal time and / or frequency resource. In various embodiments, the first part of the control information indicates whether the uplink transmission is processed by a model or not. In various embodiments, the first part of the control information indicates a number of layers of a model, where each number of layers of the model corresponds to a number of modulation symbols.
[0100] In various embodiments, the methods may include the wireless terminal device 104 transmitting, and the WANN 102 receiving, the second part of the control information in a first L time-domain symbols of the nominal time and / or frequency resource, wherein L is an integer number larger than 0 and smaller than a number of time-domain symbols of the nominal time and / or frequency resource. In various embodiments, L is indicated by the first part of the control information, or is configured by the wireless access network node.
[0101] In various embodiments, the methods may include the wireless terminal device 104 transmitting, and the WANN 102 receiving, the second part of the control information in a first F1 frequency-domain resource blocks of the nominal time and / or frequency resource, wherein F1 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource. In various embodiments, F1 is indicated by the first part of the control information, or is configured by the wireless access network node.
[0102] In various embodiments, the methods may include the wireless terminal device 104 transmitting, and the WANN 102 receiving, the second part of the control information in a last F2 frequency-domain resource blocks of the nominal time and / or frequency resource, wherein F2 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource. In various embodiments, wherein F2 is indicated by the first part of the control information, or is configured by the wireless access network node.
[0103] In various embodiments of the method, the second part of the control information indicates whether the uplink transmission is processed by a model or not. In certain embodiments, the second part of the control information indicates an amount of remaining data at the wireless terminal device 104 side. In certain embodiments, the second part of the control information indicates a channel metric of the uplink transmission. In certain embodiments, the second part of the control information indicates a number of layers of a model, where each number of layers corresponds to a number of modulation symbols of a model output.
[0104] In various embodiments of the methods, a spatial relation of the transmission of the second part of the control information is linked to a reference signal of the transmission of the first part of the control information. In various embodiments, a spatial relation of the uplink transmission is linked to a reference signal of the transmission of the second part of the control information. In certain embodiments, a spatial relation of the uplink transmission is the same as a spatial relation of the transmission of the second part of the control information. In various embodiments, a same power control parameter is applied to the transmission of the second part of the control information and the uplink transmission. In various embodiments, a modulation order of the transmission of the second part of the control information is not larger than a modulation order of the uplink transmission.
[0105] Embodiment 4 –Model group
[0106] The UE 104 may apply a physical model for multiple use cases. However, the UE 104 may not need to directly report this information to the base station 102. Instead, the UE 104 may report the model group information to the base station 102. The base station 102 may indicate the group information to the UE 104. And then follow-up model management can be conducted via this group.
[0107] The UE 104 may indicate the model group information to the base station 102, where the model group information indicates one or multiple model groups to the base station 102. Each model group includes one or multiple use cases. The use case may be beam prediction, CSI prediction, CSI compression, etc. The base station 102 may indicate the model group information to the UE 104. The model group information indicated by the base station 102 may be different from that indicated by the UE 104. If the model for one use case of one model group is activated, deactivated, switched, or fallback, the model for all use cases in the model group is activated, deactivated, switched or fallback, respectively.
[0108] In another embodiment, the UE 104 indicates the model group information to the base station 102, where the model group information indicates one or multiple model groups to the base station 102. Each model group includes one or multiple models. The base station 102 may indicate the model group information to the UE 104. If the model for one model group is activated, deactivated, switched or fallback, then all models in the model group are activated, deactivated, switched or fallback, respectively.
[0109] Each model group may be mapped with an index. The base station 102 may send a command with the index to activate, deactivate, switch, or fallback all the models in the model group with the index.
[0110] Embodiment 5 –Model parameters
[0111] The UE 104 and the base station 102 may communicate the model structure. Alternatively, the model structure can be predefined. The model structure may include the model type (e.g., CNN (Convolutional Neural Networks) or Transformer) , number of layers of the model, and mode input / output information, etc.
[0112] The model at the UE 104 side can be associated with up to two sets of parameters, where the first set of parameters of the model is predefined and the second set of parameters of the model is transferred from the base station 102 to the UE 104. The UE 104 can perform inference based on the model with the predefined parameters or parameters transformed from the base station 102. Alternatively, the first set of parameters of the model is broadcasted in the cell and the second set of parameters of the model is sent to the UE 104 during RRC CONNECTED mode.
[0113] Before receiving the second set of parameters of the model, the first set of parameters may be applied. More specifically, the first set of parameters may be applied during RACH procedure. During RRC INACTIVE state, the first set of parameters may be applied.
[0114] The base station 102 may send the second set of parameters of the model to the UE 104 at a time point T1. The UE 104 may apply the second set of parameters of the model ΔT time duration after the time point T1. The ΔT time duration may be applied for the UE 104 processing the parameters. During the time duration ΔT after the time point T1, the UE 104 is not expected to respond the model inference or model monitoring.
[0115] In one embodiment, the base station 102 sends a command to update the first set of parameters. In this case, the second set of parameters is updated from the first set of parameters. The command may include the parameter location and the updated parameter. The parameter location may indicate which part of the parameter is to be updated and the update parameter may indicate the updated parameter to replace the corresponding part of the first set of parameters. The parameter location may indicate the starting location of the update parameter. In this case, the UE 104 may update the parameters from the starting location. Alternatively, the parameter location may indicate an index corresponding to a subset of the first set of parameters. In this case, the UE 104 may update the parameters of the corresponding subset of the first set of parameters.
[0116] For example, the first set of parameters are divided into four subsets, i.e., the first 1 / 4 subset of the parameters, the second 1 / 4 subset of the parameters, the third 1 / 4 subset of the parameters, and the forth 1 / 4 subset of the parameters. The base station 102 may indicate index “00” to indicate to the UE 104 to update the first 1 / 4 subset of the parameters. Along with the index, the base station 102 may indicate the updated parameters to the UE 104.
[0117] In one embodiment, in the case of handover, the base station 102 of the first cell may communicate parameter information with the base station of the second cell. The parameter information includes at least one of the following:
[0118] Whether the first set of parameters of the first cell can be applied in the second cell;
[0119] Whether the second set of parameters of the first cell can be applied in the second cell;
[0120] Whether the UE 104 needs to receive the first set of parameters of the second cell; and / or
[0121] Whether the UE 104 needs to receive the second set of parameters of the second cell.
[0122] In one embodiment, the base station 102 of the first cell sends the first set of parameters of the second cell to the UE 104 to facilitate the handover procedure. Similarly, the base station 102 of the first cell sends the second set of parameters of the second cell to the UE 104.
[0123] The description and accompanying drawings above provide specific example embodiments and implementations. The described subject matter may, however, be embodied in a variety of different forms and, therefore, covered or claimed subject matter is intended to be construed as not being limited to any example embodiments set forth herein. A reasonably broad scope for claimed or covered subject matter is intended. Among other things, for example, subject matter may be embodied as methods, devices, components, systems, or non-transitory computer-readable media for storing computer codes. Accordingly, embodiments may, for example, take the form of hardware, software, firmware, storage media or any combination thereof. For example, the method embodiments described above may be implemented by components, devices, or systems including memory and processors by executing computer codes stored in the memory.
[0124] Throughout the specification and claims, terms may have nuanced meanings suggested or implied in context beyond an explicitly stated meaning. Likewise, the phrase “in one embodiment / implementation / example / approach” as used herein does not necessarily refer to the same embodiment and the phrase “in another embodiment / implementation / example / approach” as used herein does not necessarily refer to a different embodiment. It is intended, for example, that claimed subject matter includes combinations of example embodiments in whole or in part.
[0125] In general, terminology may be understood at least in part from usage in context. For example, terms, such as “and” , “or” , or “and / or, ” as used herein may include a variety of meanings that may depend at least in part on the context in which such terms are used. Typically, “or” if used to associate a list, such as A, B or C, is intended to mean A, B, and C, here used in the inclusive sense, as well as A, B or C, here used in the exclusive sense. In addition, the term “one or more” as used herein, depending at least in part upon context, may be used to describe any feature, structure, or characteristic in a singular sense or may be used to describe combinations of features, structures or characteristics in a plural sense. Similarly, terms, such as “a, ” “an, ” or “the, ” may be understood to convey a singular usage or to convey a plural usage, depending at least in part upon context. In addition, the term “based on” may be understood as not necessarily intended to convey an exclusive set of factors and may, instead, allow for existence of additional factors not necessarily expressly described, again, depending at least in part on context.
[0126] Reference throughout this specification to features, advantages, or similar language does not imply that all of the features and advantages that may be realized with the present solution should be or are included in any single implementation thereof. Rather, language referring to the features and advantages is understood to mean that a specific feature, advantage, or characteristic described in connection with an embodiment is included in at least one embodiment of the present solution. Thus, discussions of the features and advantages, and similar language, throughout the specification may, but do not necessarily, refer to the same embodiment.
[0127] Furthermore, the described features, advantages and characteristics of the present solution may be combined in any suitable manner in one or more embodiments. One of ordinary skill in the relevant art will recognize, in light of the description herein, that the present solution can be practiced without one or more of the specific features or advantages of a particular embodiment. In other instances, additional features and advantages may be recognized in certain embodiments that may not be present in all embodiments of the present solution.
Claims
1.A method performed by a wireless access network node comprising:indicating, to a wireless terminal device, a set of time and / or frequency resources for the wireless terminal device to transmit an uplink transmission;receiving, from the wireless terminal device, a reference signal of the uplink transmission that indicates resource information of the uplink transmission, wherein the resource information indicates a subset of time and / or frequency resources of the set of time / frequency resources; andreceiving, from the wireless terminal device, decoding, and / or demodulating the uplink transmission based on the resource information.2.The method according to claim 1, wherein:the resource information indicates an actual number of time-domain symbols of the uplink transmission.3.The method according to claim 1 or 2,wherein a starting symbol for the uplink transmission is a first symbol of the set of time and / or frequency resources indicated by the wireless access network node, and / orwherein the frequency-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the wireless access network node.4.The method according to claim 1, wherein:the resource information indicates an actual number of frequency-domain resource blocks of the uplink transmission.5.The method according to claims 1 or 4,wherein a starting symbol resource block the uplink transmission is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node, and / orwherein the time-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the wireless access network node.6.The method according to any of claims 1-5,wherein the resource information indicates a time-domain repetition number of the uplink transmission.7.The method according to claim 6,wherein a starting symbol for a first uplink transmission or a first uplink transmission repetition is a first symbol of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission,wherein other uplink transmission repetitions are allocated consecutively in time-domain, and / orwherein frequency-domain resources for the uplink transmission are the same as the set of frequency resources indicated by the wireless access network node.8.The method according to any of claims 1-5,wherein the resource information indicates a frequency-domain repetition number of the uplink transmission.9.The method according to claim 8,wherein a starting resource block for a first uplink transmission or a first uplink transmission repetition is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission,wherein other uplink transmission repetitions are allocated consecutively in frequency-domain, and / orwherein time-domain resources for the uplink transmission are the same as the set of time resources indicated by the wireless access network node.10.The method according to any of claims 1-5,wherein the resource information indicates power control information.11.The method according to claim 10,wherein the power control information includes a power adjustment parameter (Δp) , where the power adjustment parameter indicates to the wireless terminal device to increase or decrease a power of the uplink transmission by Δp.12.The method according to any of claims 1-11,wherein the reference signal is scrambled with a sequence, where each sequence is mapped with an index;wherein the method comprises determining the index by receiving the reference signal.13.The method according to any of claims 1-11,wherein the reference signal is scrambled with a sequence, where each sequence is mapped to a resource information or an index of resource information;wherein the method comprises determining the resource information by receiving the reference signal.14.A method performed by a wireless terminal device comprising:receiving, from a wireless access network node, an indication of a set of time and / or frequency resources for the wireless terminal device to transmit an uplink transmission;transmitting, to the wireless access network node, a reference signal of the uplink transmission that indicates resource information of the uplink transmission, wherein the resource information indicates a subset of time and / or frequency resources of the set of time / frequency resources; andtransmitting, to the wireless access network node, the uplink transmission based on the resource information.15.The method according to claim 14, wherein:the resource information indicates an actual number of time-domain symbols of the uplink transmission.16.The method according to claim 14 or 15,wherein a starting symbol for the uplink transmission is a first symbol of the set of time and / or frequency resources indicated by the wireless access network node, and / orwherein the frequency-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the wireless access network node.17.The method according to claim 14, wherein:the resource information indicates an actual number of frequency-domain resource blocks of the uplink transmission.18.The method according to claims 14 or 17,wherein a starting symbol resource block the uplink transmission is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node, and / orwherein the time-domain resources for the uplink transmission are the same as the set of time and / or frequency resources indicated by the wireless access network node.19.The method according to any of claims 14-18,wherein the resource information indicates a time-domain repetition number of the uplink transmission.20.The method according to claim 19,wherein a starting symbol for a first uplink transmission or a first uplink transmission repetition is a first symbol of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission,wherein other uplink transmission repetitions are allocated consecutively in time-domain, and / orwherein frequency-domain resources for the uplink transmission are the same as the set of frequency resources indicated by the wireless access network node.21.The method according to any of claims 14-18,wherein the resource information indicates a frequency-domain repetition number of the uplink transmission.22.The method according to claim 21,wherein a starting resource block for a first uplink transmission or a first uplink transmission repetition is a first resource block of the set of time and / or frequency resources indicated by the wireless access network node for the uplink transmission,wherein other uplink transmission repetitions are allocated consecutively in frequency-domain, and / orwherein time-domain resources for the uplink transmission are the same as the set of time resources indicated by the wireless access network node.23.The method according to any of claims 14-18,wherein the resource information indicates power control information.24.The method according to claim 23,wherein the power control information includes a power adjustment parameter (Δp) , where the power adjustment parameter indicates to the wireless terminal device to increase or decrease a power of the uplink transmission by Δp.25.The method according to any of claims 14-24,wherein the reference signal is scrambled with a sequence, where each sequence is mapped with an index;wherein the wireless access network node determines the index by receiving the reference signal.26.The method according to any of claims 14-24,wherein the reference signal is scrambled with a sequence, where each sequence is mapped to a resource information or an index of resource information;wherein the the wireless access network node determines the resource information by receiving the reference signal.27.A method performed by a wireless access network node comprising:indicating, to a wireless terminal device, a set of candidate time and / or frequency resources for transmission of a first part of a control information, wherein the first part of the control information schedules an uplink transmission;indicating, to the wireless terminal device, the first part of the control information;receiving, from the wireless terminal device, an indication of a second part of the control information; andreceiving, from the wireless terminal device, the uplink transmission based on the first part of the control information and / or the second part of the control information.28.The method according to claim 27,wherein the first part of the control information indicates a nominal time and / or frequency resource, andwherein the second part of the control information and the uplink transmission are transmitted within the nominal time and / or frequency resource.29.The method according to any of claims 27-28,wherein the first part of the control information indicates whether the uplink transmission is processed by a model or not.30.The method according to any of claims 27-29,wherein the first part of the control information indicates a number of layers of a model, where each number of layers of the model corresponds to a number of modulation symbols.31.The method according to any of claims 28-29, comprising:receiving, from the wireless terminal device, the second part of the control information in a first L time-domain symbols of the nominal time and / or frequency resource,wherein L is an integer number larger than 0 and smaller than a number of time-domain symbols of the nominal time and / or frequency resource.32.The method according to claim 31,wherein L is indicated by the first part of the control information, or is configured by the wireless access network node.33.The method according to any of claims 28-29, comprising:receiving, from the wireless terminal device, the second part of the control information in a first F1 frequency-domain resource blocks of the nominal time and / or frequency resource,wherein F1 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource.34.The method according to claim 33,wherein F1 is indicated by the first part of the control information, or is configured by the wireless access network node.35.The method according to any of claims 28-29, comprising:receiving, from the wireless terminal device, the second part of the control information in a last F2 frequency-domain resource blocks of the nominal time and / or frequency resource,wherein F2 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource.36.The method according to claim 35,wherein F2 is indicated by the first part of the control information, or is configured by the wireless access network node.37.The method according to any of claims 27-36,wherein the second part of the control information indicates whether the uplink transmission is processed by a model or not.38.The method according to any of claims 27-37,wherein the second part of the control information indicates an amount of remaining data at the wireless terminal device side.39.The method according to any of claims 27-38,wherein the second part of the control information indicates a channel metric of the uplink transmission.40.The method according to any of claims 27-39,wherein the second part of the control information indicates a number of layers of a model, where each number of layers corresponds to a number of modulation symbols.41.The method according to any of claims 27-40,wherein a spatial relation of the transmission of the second part of the control information is linked to a reference signal of the transmission of the first part of the control information.42.The method according to any of claims 27-41,wherein a spatial relation of the uplink transmission is linked to a reference signal of the transmission of the second part of the control information.43.The method according to any of claims 27-42,wherein a spatial relation of the uplink transmission is the same as a spatial relation of the transmission of the second part of the control information.44.The method according to any of claims 27-43,wherein a same power control parameter is applied to the transmission of the second part of the control information and the uplink transmission.45.The method according to any of claims 27-44,wherein a modulation order of the transmission of the second part of the control information is not larger than a modulation order of the uplink transmission.46.A method performed by a wireless terminal device comprising:receiving, from a wireless access network node, an indication of a set of candidate time and / or frequency resources for transmission of a first part of a control information, wherein the first part of the control information schedules an uplink transmission;receiving, from a wireless access network node, an indication of the first part of the control information;transmitting, to the wireless access network node, an indication of a second part of the control information; andtransmitting, to the wireless access network node, the uplink transmission based on the first part of the control information and / or the second part of the control information.47.The method according to claim 46,wherein the first part of the control information indicates a nominal time and / or frequency resource, andwherein the second part of the control information and the uplink transmission are transmitted within the nominal time and / or frequency resource.48.The method according to any of claims 46-47,wherein the first part of the control information indicates whether the uplink transmission is processed by a model or not.49.The method according to any of claims 46-48,wherein the first part of the control information indicates a number of layers of a model, where each number of layers of the model corresponds to a number of modulation symbols.50.The method according to any of claims 47-48, comprising:transmitting, to the wireless access network node, the second part of the control information in a first L time-domain symbols of the nominal time and / or frequency resource,wherein L is an integer number larger than 0 and smaller than a number of time-domain symbols of the nominal time and / or frequency resource.51.The method according to claim 50,wherein L is indicated by the first part of the control information, or is configured by the wireless access network node.52.The method according to any of claims 47-48, comprising:transmitting, to the wireless access network node, the second part of the control information in a first F1 frequency-domain resource blocks of the nominal time and / or frequency resource,wherein F1 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource.53.The method according to claim 52,wherein F1 is indicated by the first part of the control information, or is configured by the wireless access network node.54.The method according to any of claims 47-48, comprising:transmitting, to the wireless access network node, the second part of the control information in a last F2 frequency-domain resource blocks of the nominal time and / or frequency resource,wherein F2 is an integer number larger than 0 and smaller than a number of frequency-domain resource blocks of the nominal time and / or frequency resource.55.The method according to claim 54,wherein F2 is indicated by the first part of the control information, or is configured by the wireless access network node.56.The method according to any of claims 46-55,wherein the second part of the control information indicates whether the uplink transmission is processed by a model or not.57.The method according to any of claims 46-56,wherein the second part of the control information indicates an amount of remaining data at the wireless terminal device side.58.The method according to any of claims 46-57,wherein the second part of the control information indicates a channel metric of the uplink transmission.59.The method according to any of claims 46-58,wherein the second part of the control information indicates a number of layers of a model, where each number of layers corresponds to a number of modulation symbols.60.The method according to any of claims 46-59,wherein a spatial relation of the transmission of the second part of the control information is linked to a reference signal of the transmission of the first part of the control information.61.The method according to any of claims 46-60,wherein a spatial relation of the uplink transmission is linked to a reference signal of the transmission of the second part of the control information.62.The method according to any of claims 46-61,wherein a spatial relation of the uplink transmission is the same as a spatial relation of the transmission of the second part of the control information.63.The method according to any of claims 46-62,wherein a same power control parameter is applied to the transmission of the second part of the control information and the uplink transmission.64.The method according to any of claims 46-63,wherein a modulation order of the transmission of the second part of the control information is not larger than a modulation order of the uplink transmission.65.An apparatus for wireless communication comprising a processor that is configured to carry out the method of any of claims 1 to 64.66.A non-transitory computer readable medium having code stored thereon, the code when executed by a processor, causing the processor to implement the method recited in any of claims 1 to 64.
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