Timeline for channel multiplexing and demultiplexing within User Equipment (UE)
By receiving permission for LP uplink transmission, the shared channel preparation time and UE processing capacity are determined. LP uplink transmission is canceled to avoid overlap with HP uplink transmission, thus resolving communication conflicts caused by the overlap of LP and HP transmissions and improving the efficiency and reliability of wireless communication.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2021-05-19
- Publication Date
- 2026-06-30
AI Technical Summary
In wireless communication, when low-priority (LP) uplink transmissions overlap with high-priority (HP) uplink transmissions, existing technologies struggle to effectively handle and schedule them, leading to communication conflicts and inefficiency.
By receiving permission for LP uplink transmission, the uplink shared channel preparation time and UE processing capacity are determined. The LP uplink transmission is canceled to avoid overlap with HP uplink transmission, and the earliest transmission time of HP uplink transmission is scheduled.
It improves the efficiency and reliability of wireless communication, ensures timely processing of high-priority transmissions, reduces communication conflicts, and optimizes spectrum usage.
Smart Images

Figure CN115553036B_ABST
Abstract
Description
[0001] Cross-references to related applications
[0002] This application claims priority to U.S. Patent Application No. 17 / 324,006, filed May 18, 2021, entitled “TIMELINE FOR INTRA-USER EQUIPMENT (UE) CHANNEL MULTIPLEXING AND CANCELLATION,” which claims the benefit of U.S. Provisional Patent Application No. 63 / 027,839, filed May 20, 2020, entitled “TIMELINE FOR INTRA-USER EQUIPMENT (UE) MULTIPLEXING AND CANCELLATION,” the disclosure of which is expressly incorporated herein by reference in its entirety.
[0003] open field
[0004] Various aspects of this disclosure generally relate to wireless communications, and more particularly to techniques and apparatus for channel multiplexing and cancellation within user equipment (UE).
[0005] background
[0006] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / LTE-Advanced is an enhancement set of the Universal Mobile Telecommunications System (UMTS) mobile standard issued by the 3rd Generation Partnership Project (3GPP).
[0007] A wireless communication network may include several base stations (BSs) capable of supporting communication between several user equipments (UEs). UEs can communicate with the base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, while an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail, a BS may be referred to as a B-node, gNB, access point (AP), radio headend, transmit / receive point (TRP), new radio (NR) BS, 5G B-node, etc.
[0008] The above multiple access technologies have been adopted in various telecommunications standards to provide a common protocol that enables different user equipment to communicate at the city, country, region, and even global levels. New Radio (NR) (also known as 5G) is an enhancement set of the LTE mobile standard issued by the 3rd Generation Partnership Project (3GPP). NR is designed to better support mobile broadband Internet access by using Orthogonal Frequency Division Multiplexing (OFDM) with a Cyclic Prefix (CP) on the downlink (DL), CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (DL), and supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies and carrier aggregation to improve spectral efficiency, reduce costs, improve service, utilize new spectrum, and better integrate with other open standards.
[0009] Overview
[0010] In one aspect of this disclosure, a method for wireless communication by a user equipment (UE) includes receiving an LP grant for scheduling a low-priority (LP) uplink transmission in a time slot, the LP uplink transmission overlapping a set of high-priority (HP) uplink transmissions in the time slot. The method further includes determining an uplink shared channel preparation time, variable from subcarrier spacing (SCS) configuration and UE processing time capability, based on the overlap of the LP uplink transmission with the HP uplink transmission set. The method further includes determining a time period up to the expected transmission time of each corresponding HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant, the time period varying from the uplink shared channel preparation time and the time duration corresponding to a reported UE capability. The method also includes canceling the LP uplink transmission before its symbols overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0011] Another aspect of this disclosure relates to an apparatus for performing wireless communication at a UE. The apparatus includes means for receiving an LP grant for scheduling an LP uplink transmission in a time slot, the LP uplink transmission overlapping with a set of HP uplink transmissions in the time slot. The apparatus further includes means for determining an uplink shared channel preparation time, varying from SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission with the HP uplink transmission set. The apparatus further includes means for determining a time period up to the expected transmission time of each corresponding HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant, the time period varying from the uplink shared channel preparation time and the time duration corresponding to reported UE capabilities. The apparatus also includes means for canceling the LP uplink transmission before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0012] In another aspect of this disclosure, a non-transient computer-readable medium having non-transient program code recorded thereon for wireless communication at a UE is disclosed. The program code is executed by a processor and includes program code for receiving LP grants for scheduling LP uplink transmissions in a time slot that overlaps with a set of HP uplink transmissions in the time slot. The program code further includes program code for determining an uplink shared channel preparation time, varying from SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission and the HP uplink transmission set. The program code further includes program code for determining a time period up to the expected transmission time of each corresponding HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant, the time period varying from the uplink shared channel preparation time and the time duration corresponding to the reported UE capabilities. The program code also includes program code for canceling the LP uplink transmission before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0013] Another aspect of this disclosure relates to an apparatus for wireless communication at a UE, the apparatus including a processor and a memory communicatively coupled to the processor and storing instructions that, when executed by the processor, cause the apparatus to: receive an LP grant for scheduling an LP uplink transmission in a time slot, the LP uplink transmission overlapping with a set of HP uplink transmissions in the time slot. Execution of these instructions further causes the apparatus to: determine an uplink shared channel preparation time, varying depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission and the HP uplink transmission set. Execution of these instructions further causes the apparatus to: determine a time period up to the expected transmission time of each corresponding HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant, the time period varying depending on the uplink shared channel preparation time and the time duration corresponding to reported UE capabilities. Execution of these instructions further causes the apparatus to: cancel the LP uplink transmission before the symbol of the LP uplink transmission overlaps with the earliest HP uplink transmission in the HP uplink transmission set.
[0014] In one aspect of this disclosure, a method for wireless communication by a base station includes transmitting to a user equipment (UE) an LP grant for scheduling an LP uplink transmission in a time slot, the LP uplink transmission overlapping with a set of HP uplink transmissions in the time slot. The method further includes determining an uplink shared channel preparation time for the UE, varying depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission with the HP uplink transmission set. The method further includes determining an earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP grant, the earliest transmission time varying depending on the uplink shared channel preparation time and the time duration corresponding to a reported UE capability. The method also includes receiving the LP uplink transmission from the UE based on the LP grant, the LP uplink transmission being canceled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0015] Another aspect of this disclosure relates to an apparatus for wireless communication at a base station. The apparatus includes means for transmitting to a user equipment (UE) an LP grant for scheduling an LP uplink transmission in a time slot, the LP uplink transmission overlapping with a set of HP uplink transmissions in the time slot. The apparatus further includes means for determining an uplink shared channel preparation time for the UE, varying depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission with the HP uplink transmission set. The apparatus further includes means for determining the earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP grant, the earliest transmission time varying depending on the uplink shared channel preparation time and the time duration corresponding to a reported UE capability. The apparatus also includes means for receiving the LP uplink transmission from the UE based on the LP grant, the LP uplink transmission being cancelled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0016] In another aspect of this disclosure, a non-transient computer-readable medium having non-transient program code recorded thereon for wireless communication at a base station is disclosed. This program code is executed by a processor and includes program code for transmitting to a user equipment (UE) LP grant for scheduling LP uplink transmissions in a time slot that overlaps with a set of HP uplink transmissions in that time slot. The program code further includes program code for determining an uplink shared channel preparation time for the UE, varying depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission with the HP uplink transmission set. The program code further includes program code for determining the earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP grant, the earliest transmission time varying depending on the uplink shared channel preparation time and the time duration corresponding to the reported UE capabilities. The program code also includes program code for granting permission to receive the LP uplink transmission from the UE based on the LP, wherein the LP uplink transmission is canceled before the symbol of the LP uplink transmission overlaps with the earliest HP uplink transmission in the HP uplink transmission set.
[0017] Another aspect of this disclosure relates to an apparatus having a memory and one or more processors coupled to the memory. The processors are configured to transmit to a User Equipment (UE) an LP grant for scheduling an LP uplink transmission in a time slot, the LP uplink transmission overlapping with a set of HP uplink transmissions in the time slot. The processors are further configured to determine an uplink shared channel preparation time for the UE, varying depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission with the HP uplink transmission set. The processors are further configured to determine an earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP grant, the earliest transmission time varying depending on the uplink shared channel preparation time and the time duration corresponding to the reported UE capabilities. The processors are also further configured to receive the LP uplink transmission from the UE based on the LP grant, the LP uplink transmission being canceled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0018] The foregoing has broadly outlined the features and technical advantages of the examples according to this disclosure in an effort to facilitate a better understanding of the following detailed description. Additional features and advantages will be described. The disclosed concepts and specific examples can be readily used as the basis for modifying or designing other structures for implementing the same purposes as this disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The characteristics of the disclosed concepts, in both their organization and manner of operation, and their associated advantages, will be better understood by considering the following description in conjunction with the accompanying drawings. Each drawing is provided for illustrative and descriptive purposes and not for defining limitations on the claims. Brief description of the attached diagram
[0020] To gain a more detailed understanding of the features of this disclosure, reference can be made to various aspects, some of which are illustrated in the accompanying drawings. However, it should be noted that the drawings illustrate only certain aspects of this disclosure and should not be considered as limiting its scope, as other equivalent aspects are permissible in this description. Identical reference numerals in different drawings may identify the same or similar elements.
[0021] Figure 1 It is a block diagram that conceptually illustrates examples of wireless communication networks according to various aspects of this disclosure.
[0022] Figure 2 This is a block diagram that conceptually illustrates an example of communication between a base station and a user equipment (UE) in a wireless communication network according to various aspects of this disclosure.
[0023] Figure 3This is a timing diagram illustrating an exemplary timeline for canceling a low-priority (LP) uplink transmission that conflicts with a high-priority (HP) uplink transmission, according to various aspects of this disclosure.
[0024] Figure 4 and 5 This is a timing diagram illustrating an exemplary timeline for canceling LP uplink transmissions that conflict with first HP uplink transmissions and second HP uplink transmissions, according to various aspects of this disclosure.
[0025] Figure 6 This is a diagram illustrating an example procedure performed at a UE that cancels an LP uplink transmission before the initial symbol supporting the HP uplink transmission overlaps with the LP uplink transmission, according to various aspects of this disclosure.
[0026] Figure 7 This is a diagram illustrating an example process performed at a base station that cancels an LP uplink transmission before the initial symbol supporting the HP uplink transmission overlaps with the LP uplink transmission, according to various aspects of this disclosure.
[0027] Detailed description
[0028] The various aspects of this disclosure are described more fully below with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as being limited to any specific structure or function given throughout this disclosure. Rather, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Based on these teachings, those skilled in the art will appreciate that the scope of this disclosure is intended to cover any aspect of this disclosure, whether implemented independently of or in combination with any other aspect of this disclosure. For example, any number of the aspects described may be used to implement an apparatus or method of practice. Furthermore, the scope of this disclosure is intended to cover such apparatus or methods practiced using additional structures, functionalities, or structures and functionalities that complement or supplement the various aspects of this disclosure described. It should be understood that any aspect of this disclosure disclosed may be implemented by one or more elements of the claims.
[0029] Several aspects of a telecommunications system will now be described with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and explained in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively, "elements"). These elements can be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.
[0030] It should be noted that while the aspects may be described using terms commonly associated with 5G and subsequent wireless technologies, the aspects of this disclosure may be applied in communication systems based on other generations, such as and including 3G and / or 4G technologies.
[0031] Wireless communication systems, such as new radio (NR) access (e.g., 5G technology), can support a variety of wireless communication services, such as enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g., 80 MHz or higher), millimeter wave (mmW) targeting high carrier frequencies (e.g., 25 GHz or higher), massive machine-type communication (mMTC) targeting non-backward-compatible MTC technologies, and / or mission-critical communication targeting ultra-reliable low latency communication (URLLC). The described services may include Quality of Service (QoS) specifications, such as latency and reliability requirements. Different Transmission Time Intervals (TTIs) can be specified to meet the corresponding QoS specifications. Furthermore, the described services can coexist in the same subframe.
[0032] In some examples, a UE can dynamically multiplex different services (such as eMBB and URLLC) within the same time-frequency resources to improve spectrum utilization. Some radio standards, such as NR version 16 and later, support intra-UE multiplexing and demultiplexing for uplink channels. In some examples, if conflicting uplink channels have the same priority, the UE can multiplex the payloads of these conflicting uplink channels. As an example, the Physical Uplink Control Channel (PUCCH) may conflict with another PUCCH of the same priority. In this example, the UE can multiplex the uplink control information (UCI) payloads of both PUCCHs and transmit the multiplexed UCI in one PUCCH. As another example, the Physical Uplink Shared Channel (PUSCH) may conflict with another transmission (such as a PUCCH) of the same priority. In this example, the UE can piggyback the UCI of the PUCCH on the PUSCH transmission. Piggybacking refers to transmitting control information such as UCI along with data in the data area of an uplink shared channel such as the PUSCH. Piggybacking can be an example of multiplexing. In some examples, the UE may reuse (e.g., piggyback) eMBB services, such as reusing eMBB UCI on the eMBB PUSCH or reusing eMBB UCI on the eMBB PUSCH. Aspects of this disclosure are not limited to reusing eMBB services; other services may be reused.
[0033] In some examples, if two uplink channels of different priorities conflict, the UE can discard the channel with the lower priority. Priorities can be defined at the physical layer. For example, if an eMBB uplink channel has a higher priority than a URLLC uplink channel, the UE can discard the URLLC uplink channel that conflicts with the eMBB uplink channel.
[0034] As described, a UE can mitigate conflicts between low-priority uplink channels and high-priority uplink channels by dropping low-priority uplink channels. In some examples, a low-priority uplink channel may conflict with two or more high-priority uplink channels. Aspects of this disclosure relate to canceling a low-priority (LP) channel that conflicts with two or more high-priority (HP) uplink channels. Aspects of this disclosure also relate to multiplexing two or more HP uplink channels. Additionally, aspects of this disclosure relate to determining the expected transmission time of a corresponding HP uplink channel based on a conflict between an LP channel and two or more HP uplink channels.
[0035] Figure 1 This is a diagram illustrating a network 100 in which various aspects of this disclosure can be practiced. Network 100 can be a 5G or NR network or some other wireless network, such as an LTE network. Wireless network 100 may include several BS 110s (shown as BS110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, B-node, gNB, 5G B-node (NB), access point, transmit / receive point (TRP), etc. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell" can refer to the coverage area of a BS and / or the BS subsystem serving that coverage area, depending on the context in which the term is used.
[0036] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or another type of cell. Macrocells can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access by UEs with a service subscription. Picocells can cover a relatively small geographic area and allow unrestricted access by UEs with a service subscription. Femtocells can cover a relatively small geographic area (e.g., a residential area) and allow restricted access by UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS used for macrocells may be referred to as a macro BS. A BS used for picocells may be referred to as a pico BS. A BS used for femtocells may be referred to as a femto BS or a home BS. Figure 1In the example shown, BS 110a can be a macro BS for macro cell 102a, BS 110b can be a pico BS for pico cell 102b, and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “B node (NB),” “5G NB,” and “cell” are used interchangeably.
[0037] In some respects, the cell need not be stationary, and the geographical area of the cell can move depending on the location of the mobile BS. In some respects, BSs can interconnect with each other and / or interconnect to one or more other BSs or network nodes (not shown) in the wireless network 100 using any suitable transport network through various types of backhaul interfaces (such as direct physical connections, virtual networks, etc.).
[0038] The wireless network 100 may also include a relay station. A relay station is an entity capable of receiving data transmissions from an upstream station (e.g., a BS or a UE) and transmitting those data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station may also be referred to as a relay BS, relay base station, relay, etc.
[0039] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1 to 2 watts).
[0040] As an example, BS 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and core network 130 can exchange communication via backhaul link 132 (e.g., S1, etc.). Base station 110 can communicate with each other directly or indirectly (e.g., via core network 130) on other backhaul links (e.g., X2, etc.). UE 120 (e.g., 120a, 120b, 120c) can communicate with core network 130 via communication link 135.
[0041] Core network 130 may be an evolved packet core (EPC), which may include at least one mobility management entity (MME), at least one serving gateway (S-GW), and at least one packet data network (PDN) gateway (P-GW). The MME may be the control node handling signaling between UE 120 and the EPC. All user IP packets can be transmitted through the S-GW, which itself can connect to the P-GW. The P-GW provides IP address allocation and other functions. The P-GW can connect to the network operator's IP services. Operator IP services may include the Internet, intranet, IP Multimedia Subsystem (IMS), and packet switching (PS) streaming services.
[0042] Core network 130 provides user authentication, access authorization, tracking, IP connectivity, and other access, routing, or mobility functions. One or more of base stations 110 or access node controllers (ANCs) can interface with core network 130 via backhaul links 132 (e.g., S1, S2, etc.) and can perform radio configuration and scheduling for communication with UE 120. In some configurations, the various functions of each access network entity or base station 110 can be distributed across various network devices (e.g., radio heads and access network controllers) or combined into a single network device (e.g., base station 110).
[0043] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be stationary or mobile. UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.
[0044] One or more UEs 120 can establish Protocol Data Unit (PDU) sessions for network slicing. In some cases, UE 120 can select network slices based on application or subscription services. By serving different network slices for different applications or subscriptions, UE 120 can improve its resource utilization in the wireless network 100 while also meeting the performance specifications of individual applications of UE 120. In some cases, the network slice used by UE 120 may be provided by an AMF (Application-Specific Component) associated with one or both of base station 110 and core network 130. Figure 1 (Not shown in the image) to provide services. In addition, session management of network slices can be performed by the Session Management Function (SMF).
[0045] BS 110 (e.g., BS 110a, 110b, 110c, 110d) may include UE timeline module 138. For ease of explanation, only one BS 110a is shown as including UE timeline module 138. UE timeline module 138 may be a component of each BS 110. UE timeline module 138 may work in conjunction with one or more components of BS 110. UE timeline module 138 may transmit to the user equipment UE an LP grant for scheduling LP uplink transmissions in a time slot that overlaps with a set of HP uplink transmissions in that time slot. UE timeline module 138 may also determine the uplink shared channel preparation time of the UE, which varies depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission and HP uplink transmission sets. The UE timeline module 138 can further determine the earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP permission, the earliest transmission time being dependent on the uplink shared channel preparation time and the time duration corresponding to the reported UE capability. The UE timeline module 138 can also further receive the LP uplink transmission from the UE based on LP permission, the LP uplink transmission being cancelled before its symbols overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0046] UE 120 (e.g., UE 120a, 120b, 120c, 120d, 120e) may include uplink timeline module 140. For ease of explanation, only one UE 120d is shown as including UE uplink timeline module 140. Uplink timeline module 140 may be a component of each UE 120. Uplink timeline module 140 may receive LP grants for scheduling LP uplink transmissions in time slots. Uplink timeline module 140 may also determine uplink shared channel preparation time, which varies depending on SCS configuration and UE processing time capabilities, based on the overlap between LP uplink transmissions and HP uplink transmission sets. Uplink timeline module 140 may further determine a time period up to the expected transmission time of each corresponding HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant. The uplink timeline module 140 can further cancel the LP uplink transmission before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0047] Some UEs can be considered Machine-Type Communication (MTC) UEs, or evolved or enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide connectivity to or to a network (e.g., a wide area network such as the Internet) or a cellular network, for example, via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120 can be included inside a housing that houses the components of UE 120, such as processor components, memory components, etc.
[0048] Generally, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific Radio Access Technology (RAT) and can operate on one or more frequencies. A RAT may also be referred to as a radio technology, air interface, etc. A frequency may also be referred to as a carrier, frequency channel, etc. Each frequency can support a single RAT in a given geographical area to avoid interference between wireless networks using different RATs. In some cases, NR or 5GRAT networks can be deployed.
[0049] In some respects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In this scenario, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110. For example, base station 110 may configure UE 120 via downlink control information (DCI), radio resource control (RRC) signaling, media access control-control element (MAC-CE), or via system information (e.g., system information block (SIB)).
[0050] As indicated above, Figure 1 This is provided merely as an example. Other examples may differ from those provided. Figure 1 The content described.
[0051] Figure 2 A block diagram of a design 200 for base station 110 and UE 120 is shown. Base station 110 and UE 120 can be Figure 1 One of the base stations and one of the UEs. Base station 110 may be equipped with T antennas 234a to 234t, and UE 120 may be equipped with R antennas 252a to 252r, wherein generally T≥1 and R≥1.
[0052] At base station 110, transmit processor 220 can receive data destined for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on the Channel Quality Indicator (CQI) received from each UE, process (e.g., encode and modulate) the data to the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Reducing the number of MCSs will decrease throughput but improve transmission reliability. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI) and other information) and control information (e.g., CQI requests, grants, upper-layer signaling, etc.) and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on data symbols, control symbols, overhead symbols, and / or reference symbols, where applicable, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can process its own output symbol stream (e.g., for orthogonal frequency division multiplexing (OFDM), etc.) to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted via T antennas 234a to 234t, respectively. According to the aspects described in more detail below, position coding can be used to generate synchronization signals to convey additional information.
[0053] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on these received symbols where applicable, and provide detected symbols. Receiver processor 258 can process (e.g., demodulate and decode) these detected symbols, provide the decoded data for UE 120 to data sink 260, and provide the decoded control information and system information to controller / processor 280. The channel processor can determine the Reference Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Received Quality (RSRQ), Channel Quality Indicator (CQI), and so on. In some respects, one or more components of the UE 120 may be included in the housing.
[0054] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., reports including RSRP, RSSI, RSRQ, CQI, etc.). Transmit processor 264 can also generate reference symbols for one or more reference signals. Symbols from transmit processor 264 can be pre-encoded by TX MIMO processor 266 where applicable, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to base station 110. At base station 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 254, detected by MIMO detector 236 where applicable, and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. The receiver processor 238 can provide decoded data to the data sink 239 and decoded control information to the controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the core network 130 via the communication unit 244. The core network 130 may include a communication unit 294, a controller / processor 290, and a memory 292.
[0055] The controller / processor 240 of base station 110, the controller / processor 280 of UE 120 and / or Figure 2Any other component may perform one or more techniques associated with canceling the LP uplink transmission before the initial symbol of the HP uplink transmission overlaps with the LP uplink transmission, as described in more detail elsewhere in this document. For example, the controller / processor 240 of base station 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component may execute or direct, for example Figure 6-7 The operation of the process and / or other processes as described. Memory 242 and 282 may store data and program code for base station 110 and UE 120, respectively. Scheduler 246 may schedule the UE for data transmission on downlink and / or uplink.
[0056] In some aspects, UE 120 may include: means for receiving LP grants for scheduling LP uplink transmissions in a time slot; means for determining an uplink shared channel preparation time, which varies with SCS configuration and UE processing time capability, based on LP uplink transmissions overlapping with a set of HP uplink transmissions; means for determining a time period up to the expected transmission time of each corresponding HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP grant; and means for canceling the LP uplink transmission before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the set of HP uplink transmissions.
[0057] In some aspects, BS 110 may include: means for transmitting to a user equipment UE an LP grant for scheduling LP uplink transmissions in a time slot; means for determining an uplink shared channel preparation time for the UE, which varies with SCS configuration and UE processing time capability, based on LP uplink transmissions overlapping with an HP uplink transmission set; means for determining the earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP grant; and means for receiving the LP uplink transmission from the UE based on the LP grant.
[0058] As indicated above, Figure 2 This is provided merely as an example. Other examples may differ from those provided. Figure 2 The content described.
[0059] Wireless communication systems (such as new radio (NR) access (e.g., 5G technology)) can support a variety of wireless communication services, such as enhanced mobile broadband (eMBB) targeting wide bandwidth (e.g., 80 MHz or higher), millimeter wave (mmW) targeting high carrier frequencies (e.g., 25 GHz or higher), massive machine-type communication (mMTC) targeting non-backward compatible MTC technologies, and / or mission-critical communication targeting ultra-reliable low latency communication (URLLC). The described services may include Quality of Service (QoS) specifications, such as latency and reliability requirements. Different Transmission Time Intervals (TTIs) can be specified to meet the corresponding QoS specifications. Furthermore, the described services can coexist in the same subframe.
[0060] In some examples, a UE can dynamically multiplex different services (such as eMBB and URLLC) within the same time-frequency resources to improve spectrum utilization. Some radio standards, such as NR version 16 and later, support intra-UE multiplexing and demultiplexing for uplink channels. In some examples, if conflicting uplink channels have the same priority, the UE can multiplex the payloads of these conflicting uplink channels. As an example, the Physical Uplink Control Channel (PUCCH) may conflict with another PUCCH of the same priority. In this example, the UE can multiplex the uplink control information (UCI) payloads of both PUCCHs and transmit the multiplexed UCI in one PUCCH. As another example, the Physical Uplink Shared Channel (PUSCH) may conflict with another PUSCH of the same priority. In this example, the UE can piggyback the UCI of the PUCCH on the PUSCH transmission. Piggybacking refers to transmitting control information such as UCI along with data in the data area of an uplink shared channel such as the PUSCH. Piggybacking can be an example of multiplexing. In some examples, the UE may reuse (e.g., piggyback) eMBB services, such as reusing eMBB UCI on the eMBB PUSCH or reusing eMBBUCI on the eMBB PUSCH. Aspects of this disclosure are not limited to reusing eMBB services; other services may be reused.
[0061] In some examples, if two uplink channels of different priorities conflict, the UE can discard the channel with the lower priority. Priorities can be defined at the physical layer. For example, if an eMBB uplink channel has a higher priority than a URLLC uplink channel, the UE can discard the URLLC uplink channel that conflicts with the eMBB uplink channel.
[0062] As described, a UE can mitigate conflicts between low-priority uplink channels and high-priority uplink channels by dropping low-priority uplink channels. In some examples, a low-priority uplink channel may conflict with two or more high-priority uplink channels. Aspects of this disclosure relate to canceling a low-priority (LP) channel that conflicts with two or more high-priority (HP) uplink channels. Aspects of this disclosure also relate to multiplexing two or more HP uplink channels. Additionally, aspects of this disclosure relate to determining the expected transmission time of a corresponding HP uplink channel based on the LP channel that conflicts with two or more HP uplink channels.
[0063] In some wireless communication systems (such as NR), the base station can provide the UE with time for processing uplink transmissions. PUSCH preparation time (N2) can be an example of uplink transmission processing time. PUSCH preparation time can be defined as the number of OFDM symbols specified for the UE from the end of a permitted downlink transmission (such as a Physical Downlink Control Channel (PDCCH) transmission) to the earliest possible start of an uplink transmission (such as a PUSCH transmission) scheduled based on that permission. In some examples, the above-mentioned PUSCH preparation time (N2) can be expressed as an absolute time (e.g., seconds). In such examples, PUSCH preparation time may be referred to as T. proc,2 In some examples, the PUSCH preparation time (T) proc,2 This corresponds to the UE's processing capacity. Generally, if the UE is not given enough time to process (e.g., as determined by the UE's T...), proc,2 If the value indicates the UE's processing capability, then the UE is not expected to perform uplink transmissions.
[0064] As described, PUSCH preparation time (T) proc,2 This can be the minimum time allowed for the UE to prepare for uplink transmissions (such as PUSCH transmissions) in a wireless communication system (such as an NR system). In some examples, the PUSCH preparation time (T) can be determined based on the subcarrier spacing (SCS) configuration (μ) and also based on the PUSCH preparation time (N2) of the uplink carrier on which uplink transmissions are scheduled. proc,2 SCS configuration (μ) can be based on SCS configuration (μ) including permitted downlink channels (such as the Physical Downlink Control Channel (PDCCH)). DL ) and the SCS configuration (μ) of uplink transmissions scheduled based on this permission. UL To determine.
[0065] In some wireless communication standards (such as NR communication standards), different UE processing capabilities can be defined. In some examples, a UE may have a first processing capability referred to as Cap 1 and a second processing capability referred to as Cap 2. Cap 2 corresponds to a higher UE processing capability (e.g., faster processing time) and therefore corresponds to the PUSCH preparation time (T). proc,2 A shorter time. For example, Tables 1 and 2 provide the PUSCH preparation time (T) used to determine Cap 1 and Cap 2, respectively. proc,2 Example values for SCS configuration (μ) and PUSCH preparation time (N2) are provided in Tables 1 and 2. In Tables 1 and 2, the value of PUSCH preparation time (N2) represents the minimum number of symbols required to process uplink transmissions. For example, as shown in Table 1, for Cap 1, if SCS configuration (μ) is 0, then PUSCH preparation time (N2) is 10.
[0066]
[0067]
[0068]
[0069] The UE may be restricted to performing one uplink transmission per time slot. Therefore, when two or more uplink transmissions are scheduled for the same time slot, the UE may multiplex two or more transmissions and / or cancel one or more transmissions. As described, an HP uplink transmission may conflict with an LP uplink transmission in the same time slot. A conflict refers to a scenario where one uplink transmission overlaps with another uplink transmission in the same time slot. In some examples, the UE can mitigate the conflict between an HP uplink transmission and the LP uplink transmission in the time slot by canceling the LP uplink transmission.
[0070] In some examples, the exact cancellation time can be specified for the UE to cancel the LP uplink transmission. Figure 3 This is a timing diagram illustrating an exemplary timeline 300 for a UE to cancel an LP uplink transmission 304 that conflicts with an HP uplink transmission 308, according to various aspects of this disclosure. UE ( Figure 3 (not shown in the image) can be as shown in the reference. Figure 1 and 2 An example of the described UE 120. (e.g.) Figure 3As shown, at time t1, the UE receives a first grant 302 that schedules LP uplink transmission 304 at time t3. The first grant 302 may be LP downlink control information (DCI) received in a downlink control channel (such as PDCCH). Additionally, at time t2, the UE receives a second grant 306 that schedules HP uplink transmission 308 at time t4. The second grant 306 may be an example of HP DCI received in a downlink control channel.
[0071] exist Figure 3 In the example, the expected transmission time of HP uplink transmission 308 can be based on the PUSCH preparation time (T). proc,2 The reported UE capability (d1) and the reported UE capability (d1). In such examples, the reported UE capability (d1) can be the time duration corresponding to 0, 1, or 2 symbols reported by the UE capability. Figure 3 In the example, the UE expects that the transmission of HP uplink transmission 308 will not occur after the last symbol of the second grant 306 that schedules HP uplink transmission 308. proc,2 Start before +d1. Figure 3 In the example, T is determined based on the assumption that the first symbol assigned by PUSCH only includes the demodulation reference signal (DM-RS) (e.g., the DM-RS is a preload). proc,2 , making d 2,1 =0.
[0072] In some examples, the UE in T proc,2 +d1 cancels LP uplink transmission 304. In some other examples, the UE cancels LP uplink transmission 304 before the first symbol of HP uplink transmission 308 overlaps with LP uplink transmission 304. Figure 3 In the example, for illustrative purposes, the first symbol of HP uplink transmission 308 overlaps with LP uplink transmission 304 at time t4. Therefore, in Figure 3 In the example, the UE can cancel the LP uplink transmission 304 at any time before time t4. Additionally, in the current example, the base station (e.g., gNB) maintains a threshold time (T) between the end symbol of the second grant 306 and the start symbol of the HP uplink transmission 308. proc,2 +d1). That is, HP uplink transmission 308 in T proc,2 +d1 is not scheduled. Figure 3 (not shown in the image) can be as shown in the reference. Figure 1 and 2 An example of the described base station 110.
[0073] In some examples, two or more HP uplink transmissions may overlap with LP uplink transmissions. In some implementations, the expected transmission time can be determined for one or more of the multiple HP uplink transmissions. Figure 4 This is a timing diagram illustrating an exemplary timeline 400 for a UE to cancel an LP uplink transmission 406 that conflicts with a first HP uplink transmission 410 and a second HP uplink transmission 414, according to various aspects of this disclosure. The UE (in...) Figure 4 (not shown in the image) can be as shown in the reference. Figure 1 and 2 An example of the described UE 120. (e.g.) Figure 4 As shown, at time t1, the UE receives an LP grant 404 that schedules an LP uplink transmission 406 at time t4. The LP grant 404 may be an LP DCI received in a downlink control channel (such as PDCCH). Additionally, at time t2a, the UE receives a first HP grant 408 that schedules a first HP uplink transmission 410 at time t5. Furthermore, at time t3a, the UE receives a second HP grant 412 that schedules a second HP uplink transmission 414 at time t6. The first HP grant 408 and the second HP grant 412 may each be an HP DCI, and each HP grant 408, 412 may be received in a downlink control channel (such as PDCCH).
[0074] exist Figure 4 In the example, the UE expects the base station not to schedule the earliest scheduled HP uplink transmission (such as the first HP uplink transmission 410) for a time period (such as T) after the last symbol of the last received HP grant (such as the second HP grant 412). proc,2 It begins before +d1). That is, T proc,2 +d1 could be an example of a time period up to the expected transmission time of the HP uplink transmission. For example, as shown... Figure 4 As shown, the UE expects the base station not to schedule the transmission of the first HP uplink transmission 410 as a T after the last symbol of the second HP grant 412. proc,2 Start before +d1 (e.g., time t5). Figure 4 As shown, the last symbol of the second HP grant 412 occurs at time t3b. (Base station) Figure 4 (not shown in the image) can be as shown in the reference. Figure 1 and 2 An example of the described base station 110. Figure 4 It is provided as an example and is not drawn to scale. Figure 4In the example, the UE can cancel the LP uplink transmission 406 before the first symbol of the first HP uplink transmission 410 overlaps with the LP uplink transmission 406. For illustrative purposes, as Figure 4 As shown, the first symbol of the first HP uplink transmission 410 overlaps with the LP uplink transmission 406 at time t5. Therefore, the UE can cancel the LP uplink transmission 406 at any time before time t5.
[0075] In another implementation, the UE expects that the transmission of one or more of the HP uplink transmissions 410 and 414 will not occur within a time period (such as T) following the last symbol of the corresponding HP-permitted 408 and 412. proc,2 It begins before +d1). That is, T proc,2 +d1 could be an example of a time period up to the expected transmission time of the HP uplink transmission. As an example, the UE expects the transmission of the first HP uplink transmission 410 to not occur after the last symbol of the first HP grant 408. proc,2 It begins before +d1. For illustrative purposes, the last symbol of the first HP granting 408 occurs at time t2b. Therefore, although in Figure 4 Not shown in the figure, but in this example, time t5 corresponds to T after the last symbol of the first HP grant 408. proc,2 +d1. Additionally or alternatively, the UE can anticipate that the transmission of the second HP uplink transmission 414 will not occur after the last symbol of the second HP permitted 412. proc,2 It begins before +d1. For illustrative purposes, the last symbol of the second HP granting 412 occurs at time t3a. Therefore, although in Figure 4 Not shown in the figure, but in this example, time t6 corresponds to T after the last symbol of the second HP grant 412. proc,2 +d1. As mentioned above, Figure 4 For example, the UE can cancel the LP uplink transmission 406 before the first symbol of the first HP uplink transmission 410 overlaps with the LP uplink transmission 406. In some implementations (such as...) Figure 4 In the example, T can be determined based on the assumption that the first symbol assigned by PUSCH consists only of DM-RS. proc,2 , making d 2,1 =0.
[0076] exist Figure 4 In the example, LP uplink transmission 406 can be a PUSCH transmission, the first HP uplink transmission 410 can be a PUCCH transmission, and the second HP uplink transmission 414 can be a PUSCH transmission. According to various aspects of this disclosure, the UE can piggyback the UCI of the first HP uplink transmission 410 on the second HP uplink transmission 414. Figure 4 An example of two HP uplink channels overlapping with an LP uplink channel is explained. This disclosure is not limited to the overlap of two HP uplink channels with an LP uplink channel. Aspects of this disclosure, such as expected transmission time, are also included. Figure 4 As described, and the processing time (e.g., T) is determined. proc,2 As described below. The present disclosure also envisions scenarios where one of the plurality of HP channels overlaps with an LP channel and where two or more HP channels overlap with each other.
[0077] Based on various aspects of this disclosure, such as references Figure 4 The described aspects, PUSCH preparation time (T) proc,2 This can be based on the value of the SCS configuration (μ), which corresponds to each PDCCH (such as...) carrying permission (e.g., DCI). Figure 4 First HP granted 408, Second HP granted 412 and LP granted 404)(μ DL ) and each PUSCH or PUCCH (such as) that is granted scheduling upon receipt Figure 4 LP uplink transmission 406, first HP uplink transmission 410 and second HP uplink transmission 414 (μ) UL The minimum SCS configuration in ). For example, if the SCS configuration is zero, one, and two, then the PUSCH preparation time (T) proc,2 The value of the SCS configuration (μ) can be zero (e.g., minimum SCS configuration).
[0078] Additionally, in some respects, such as reference Figure 4In all aspects described, the UE may consider the processing timing capabilities (e.g., Cap 1 or Cap 2) for all uplink transmissions (such as all HP uplink transmissions) and use the lowest capability. In some implementations, a second processing timing capability (Cap 2) may be enabled on all uplink carriers for scheduled HP uplink transmissions and scheduled LP uplink transmissions. As an example, a processing type 2 parameter (such as the processingType2Enabled parameter) may be enabled for all serving cells corresponding to scheduled HP uplink transmissions. In such implementations, the PUSCH preparation time (N2) may correspond to a Cap 2 value. Additionally, the SCS configuration (μ) value may also correspond to a Cap 2 value based on the PUSCH preparation time (N2) corresponding to the Cap 2 value. Alternatively, a first processing timing capability (Cap 1) may be enabled on one or more uplink carriers for scheduled HP uplink transmissions. In such implementations, the PUSCH preparation time (N2) may correspond to a Cap 1 value. In some examples, the value of SCS configuration (μ) can also correspond to the Cap 1 value, based on the PUSCH preparation time (N2) corresponding to the Cap 1 value.
[0079] In some examples, HP uplink transmissions can be scheduled without corresponding permission. Figure 5 This is a timing diagram illustrating an exemplary timeline 500 for a UE to cancel an LP uplink transmission 506 that conflicts with a first HP uplink transmission 510 and a second HP uplink transmission 514, according to various aspects of this disclosure. The UE (in...) Figure 5 (not shown in the image) can be as shown in the reference. Figure 1 and 2 An example of the described UE 120. (e.g.) Figure 5 As shown, at time t1, the UE receives from the base station an LP grant 504 that schedules an LP uplink transmission 506 at time t4. The LP grant 504 may be an LP DCI received in a downlink control channel (such as PDCCH). Additionally, at time t2a, the UE receives an HP grant 512 that schedules a second HP uplink transmission 514 at time t5. The HP grant 512 may be an HP DCI received in a downlink control channel (such as PDCCH). The base station ( Figure 5 (not shown in the image) can be as shown in the reference. Figure 1 and 2 An example of the described base station 110.
[0080] exist Figure 5In the example, the first HP uplink transmission 510 scheduled at time t4 could be an example of an uplink transmission scheduled without a corresponding dynamic grant (e.g., HP grant 512). Examples of uplink transmissions scheduled without a corresponding dynamic grant include, but are not limited to, type 1 or type 2 uplink transmissions with configuration grant, scheduling request (SR) transmissions, or hybrid automatic repeat request (HARQ) acknowledgment (ACK) reports for semi-persistent (SPS) physical downlink shared channel (PDSCH). A HARQ-ACK report for SPS PDSCH could be an example of a HARQ-ACK report transmitted in response to a received PDSCH without a corresponding PDCCH. In one example, the first HP uplink transmission 510 could be a HARQ-ACK report for SPS PDSCH.
[0081] In some examples (such as) Figure 5 In the example ( ), due to the lack of dynamic granting, the base station may not dynamically grant permission when determining the expected transmission time of the first HP uplink transmission 510. Additionally, in reference ( ) Figure 4 Determining T as described in the text proc,2 When the SCS value (μ) is given, permission (μ) for unpermitted HP uplink transmission can be disregarded. DL SCS(μ) DL The value is used to describe the HP uplink transmission that does not correspond to a permitted (e.g., PDCCH) value. For ease of explanation, an HP uplink transmission that does not correspond to a permitted (e.g., PDCCH) can be referred to as an unpermitted HP uplink transmission. In such an example, if the unpermitted HP uplink transmission is the earliest HP uplink transmission in the set of HP uplink transmissions scheduled in the time slot, the UE can cancel the LP uplink transmission before the first symbol of the unpermitted HP uplink transmission overlaps with the LP uplink transmission. Figure 5 In the example, the first HP uplink transmission 510 is the earliest HP uplink transmission in the set of HP uplink transmissions 510, 514 scheduled in the time slot. Therefore, the UE can cancel the LP uplink transmission 506 before the first symbol of the first HP uplink transmission 510 overlaps with the LP uplink transmission 506 at time t4. Additionally, as... Figure 5 As shown, the UE can anticipate that the transmission of the second HP uplink transmission 514 will not occur after the last symbol of HP-granted 512. proc,2 It begins before +d1 (e.g., before time t5). Figure 5 In the example, HP allows the last symbol of 512 to occur at time t2b.
[0082] As indicated above, Figure 3 , 4 5 and 6 are provided as examples. Other examples may differ from those provided. Figure 3 , 4 As described in 5.
[0083] Figure 6 This is a diagram illustrating an example procedure performed at a UE that cancels an LP uplink transmission before the initial symbol supporting the HP uplink transmission overlaps with the LP uplink transmission, according to various aspects of this disclosure. Operation of procedure 600 can be implemented by a UE (such as UE 120) or its components, as described in reference respectively. Figure 1 , 2 The procedures described in points 3, 4, and 5 are as follows. For example, the operation of process 600 can be performed as described in reference 1. Figure 1 The described uplink (UL) timeline module 140 is executed. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the following operations or functions. Additionally or alternatively, the UE can use dedicated hardware to perform aspects of the following operations or functions.
[0084] In block 602, process 600 may receive LP permission for scheduling LP uplink transmissions in a time slot. In some examples, such as reference Figure 3-6 In the described example, LP uplink transmissions overlap with a set of HP uplink transmissions in a time slot. HP uplink transmissions may include one or both of control channel (e.g., PUCCH) or data channel (e.g., PUSCH) transmissions. In block 604, process 600 may determine the uplink shared channel preparation time, which varies depending on SCS configuration and UE processing time capabilities, based on the overlap of the LP uplink transmission and HP uplink transmission sets. As described, the uplink shared channel (e.g., PUSCH) preparation time (T... proc,2 This can be the minimum time allowed for the UE to prepare for uplink transmissions (such as PUSCH transmissions) in a wireless communication system (such as an NR system). In some examples, the PUSCH preparation time (T) can be determined based on the subcarrier spacing (SCS) configuration (μ) and also based on the PUSCH preparation time (N2) of the uplink carrier on which uplink transmissions are scheduled. proc,2 SCS configuration (μ) can be based on permitted downlink channels, such as the Physical Downlink Control Channel (PDCCH). DL ) and the SCS configuration (μ) of uplink transmissions scheduled based on this permission. UL To determine the SCS configuration (μ).
[0085] like Figure 6As shown, in block 606, process 600 determines a time period up to the expected transmission time of each corresponding HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP permission. This time period may vary with the uplink shared channel preparation time and the time duration corresponding to the reported UE capabilities. Figure 6 As shown, in block 606, process 600 determines a time period up to the expected transmission time of each corresponding HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP permission. This time period may vary with the uplink shared channel preparation time and the time duration corresponding to the reported UE capabilities. For example, as referenced Figure 3 As described, the expected transmission time for HP uplink transmission can be based on the PUSCH preparation time (T). proc,2 The reported UE capability (d1) and the reported UE capability. In some examples, the reported UE capability (d1) can be the time duration corresponding to 0, 1, or 2 symbols reported by the UE capability. In some implementations, the UE expects the HP uplink transmission to not occur after the last symbol of the permission granted for that HP uplink transmission. proc,2 Start before +d1. In such implementations, the PUSCH preparation time (T) can be determined based on the assumption that the first symbol assigned by the PUSCH only includes the demodulation reference signal (DM-RS) (e.g., the DM-RS is preloaded). proc,2 ), making d 2,1 =0.
[0086] Additionally, such as Figure 6 As shown in block 608, process 600 can cancel the LP uplink transmission before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set. For example, as shown in reference Figure 4 As described, the LP uplink transmission 406 is cancelled before time t5, where time t5 corresponds to the time when the symbols of the LP uplink transmission overlap with the first HP uplink transmission 410. Figure 4 In the example, the first HP uplink transmission 410 is the earliest HP uplink transmission in the HP uplink transmission set 410, 414.
[0087] Figure 7 This is a diagram illustrating an example process performed at a base station where an LP uplink transmission is cancelled before the initial symbol supporting the HP uplink transmission overlaps with the LP uplink transmission, according to various aspects of this disclosure. The operation of process 700 can be implemented by a base station (such as base station 110) or its components, as described in reference respectively. Figure 1 , 2 The operations described in sections 3, 4, and 5. For example, the operation of process 700 can be performed as described in reference 1. Figure 1The described UE timeline module 138 is executed. In some examples, the base station may execute a set of instructions to control the functional elements of the base station to perform the operations or functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform aspects of the operations or functions described below.
[0088] In block 702, procedure 700 may transmit LP permission to the UE for scheduling LP uplink transmissions in a time slot. LP uplink transmissions may overlap with a set of HP uplink transmissions in the time slot. In block 704, procedure 700 may determine the UE's uplink shared channel preparation time, which varies depending on the SCS configuration and UE processing time capability, based on the overlap of the LP uplink transmission and HP uplink transmission sets. In some examples, the PUSCH preparation time (T) may be determined based on the subcarrier spacing (SCS) configuration (μ) and also based on the PUSCH preparation time (N2) of the uplink carrier on which uplink transmissions are scheduled. proc,2 SCS configuration (μ) can be based on permitted downlink channels, such as the Physical Downlink Control Channel (PDCCH). DL ) and the SCS configuration (μ) of uplink transmissions scheduled based on this permission. UL This determines the SCS configuration (μ).
[0089] In block 706, process 700 may determine the earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on the corresponding HP permission. The earliest transmission time may vary with the uplink shared channel preparation time and the time duration corresponding to the reported UE capability. For example, as referenced Figure 3 As described, the earliest transmission time for HP uplink transmissions can be based on the PUSCH preparation time (T). proc,2 ) and the reported UE capability (d1). In box 708, the process may grant permission to receive LP uplink transmissions from the UE based on LP, which is canceled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0090] Examples of implementations are described in the following numbered clauses.
[0091] 1. A method for performing wireless communication by a user equipment (UE), comprising: receiving an LP grant for scheduling a low-priority (LP) uplink transmission in a time slot, the LP uplink transmission overlapping a set of high-priority (HP) uplink transmissions in the time slot; determining an uplink shared channel preparation time, variable to a subcarrier spacing (SCS) configuration and UE processing time capability, based on the overlap of the LP uplink transmission and the HP uplink transmission set; determining a time period up to an expected transmission time for each corresponding HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant, the time period varying to the uplink shared channel preparation time and a time duration corresponding to a reported UE capability; and canceling the LP uplink transmission before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0092] 2. The method of Clause 1 further includes receiving an HP grant set for scheduling a set of high priority (HP) uplink transmissions in the time slot, each corresponding HP grant in the HP grant set corresponding to a different HP uplink transmission in the HP uplink transmission set.
[0093] 3. The method of any of Clauses 1-2, wherein the time period preceding the expected transmission time of each corresponding HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP grant is initiated after the last symbol of the corresponding HP grant.
[0094] 4. The method of any of Clauses 1-3 further includes transmitting each corresponding HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP permission no earlier than the expected transmission time.
[0095] 5. The method of any of Clauses 1-4, wherein the SCS configuration corresponds to the minimum SCS configuration selected from one of the first set of SCS configurations, the second set of SCS configurations, the third set of SCS configurations, and the fourth set of SCS configurations.
[0096] 6. The method of Clause 5, wherein: each first SCS configuration in the first SCS configuration set is associated with a different HP uplink permission in the HP uplink permission set corresponding to the HP uplink transport set; and each second SCS configuration in the second SCS configuration is associated with a different HP uplink transport in the HP uplink transport set.
[0097] 7. The method of Clause 5, wherein: the third SCS configuration is associated with the LP grant; and the fourth SCS configuration is associated with the LP uplink transmission.
[0098] 8. The method of any of Clauses 1-7, wherein when each HP uplink transmission in the HP uplink transmission set corresponds to processing time capability 2, the UE processing time capability is processing time capability 2, and the value of the uplink shared channel preparation time for processing time capability 2 is less than the value of the uplink shared channel preparation time for processing time capability 1.
[0099] 9. The method of any of Clauses 1-7, wherein the UE processing time capability is processing time capability 1 when one of the HP uplink transmissions in the HP uplink transmission set corresponds to processing time capability 1.
[0100] 10. The method of any of Clauses 1-9, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission comprising HARQ-ACK information generated based on the received downlink shared channel in the absence of a corresponding downlink control channel.
[0101] 11. The method of any of Clauses 1-9, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission including a scheduling request (SR).
[0102] 12. The method of any of Clauses 1-9, wherein the earliest HP uplink transmission is based on an unapproved HP uplink transmission generated with configuration approval.
[0103] 13. The method of any of Clauses 1-12, wherein the UE assumes that the first symbol transmitted by the LP uplink is limited to including a demodulation reference signal (DM-RS).
[0104] 14. A method for performing wireless communication by a base station, comprising: transmitting to a user equipment (UE) an LP grant for scheduling a low-priority (LP) uplink transmission in a time slot, the LP uplink transmission overlapping a set of high-priority (HP) uplink transmissions in the time slot; determining an uplink shared channel preparation time for the UE, varying from a subcarrier spacing (SCS) configuration and UE processing time capability, based on the overlap of the LP uplink transmission with the HP uplink transmission set; determining an earliest transmission time for scheduling each corresponding HP uplink transmission in the HP uplink transmission set based on a corresponding HP grant, the earliest transmission time varying from the uplink shared channel preparation time and a time duration corresponding to a reported UE capability; and receiving the LP uplink transmission from the UE based on the LP grant, the LP uplink transmission being canceled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
[0105] 15. The method of Clause 14 further includes transmitting an HP grant set for scheduling a set of high priority (HP) uplink transmissions in the time slot, each corresponding HP grant in the HP grant set corresponding to a different HP uplink transmission in the HP uplink transmission set.
[0106] 16. The method of any of Clauses 14-15, wherein the earliest transmission time of each corresponding HP uplink transmission in the HP uplink transmission set is the end of the time period initiated after the last symbol permitted by the corresponding HP.
[0107] 17. The method of any of Clauses 14-16 further includes receiving each corresponding HP uplink transmission in the HP uplink transmission set no earlier than the earliest transmission time.
[0108] 18. The method of any of Clauses 14-17, wherein the SCS configuration is the minimum SCS configuration corresponding to one of the first set of SCS configurations, the second set of SCS configurations, the third set of SCS configurations, and the fourth set of SCS configurations.
[0109] 19. The method of Clause 18, wherein: each first SCS configuration in the first SCS configuration set is associated with a different HP uplink permission in the HP uplink permission set corresponding to the HP uplink transport set; and each second SCS configuration in the second SCS configuration is associated with a different HP uplink transport in the HP uplink transport set.
[0110] 20. The method of Clause 18, wherein: the third SCS configuration is associated with the LP uplink permission; and the fourth SCS configuration is associated with the LP uplink transmission.
[0111] 21. The method of any of Clauses 14-20, wherein when each HP uplink transmission in the HP uplink transmission set corresponds to processing time capability 2, the UE processing time capability is processing time capability 2, and the value of the uplink shared channel preparation time for processing time capability 2 is less than the value of the uplink shared channel preparation time for processing time capability 1.
[0112] 22. The method of any of Clauses 14-20, wherein the UE processing time capability is processing time capability 1 when one of the HP uplink transmissions in the HP uplink transmission set corresponds to processing time capability 1.
[0113] 23. The method of any of Clauses 14-22, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission comprising HARQ-ACK information generated based on the transmitted downlink shared channel in the absence of a corresponding downlink control channel.
[0114] 24. The method of any of Clauses 14-22, wherein the earliest HP uplink transmission is an unapproved HP uplink transmission including a scheduling request (SR).
[0115] 25. The method of any of Clauses 14-22, wherein the earliest HP uplink transmission is based on an unapproved HP uplink transmission generated with configuration approval.
[0116] The foregoing disclosure provides explanations and descriptions, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations may be made in light of the foregoing disclosure or may be obtained through practice.
[0117] As used herein, the term "component" is intended to be interpreted broadly as hardware, firmware, and / or a combination of hardware and software. As used herein, a processor is implemented using hardware, firmware, and / or a combination of hardware and software.
[0118] Some aspects are described in conjunction with thresholds. As used, depending on the context, satisfying a threshold can mean a value greater than the threshold, greater than or equal to the threshold, less than the threshold, less than or equal to the threshold, equal to the threshold, not equal to the threshold, etc.
[0119] It will be apparent that the described systems and / or methods can be implemented in various forms, including hardware, firmware, and / or combinations of hardware and software. The actual dedicated control hardware or software code used to implement these systems and / or methods is not limited in any aspect. Thus, the operation and behavior of these systems and / or methods are described without reference to any specific software code—it is understood that software and hardware can be designed to implement these systems and / or methods, at least in part, based on the description herein.
[0120] Although specific combinations of features are described in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of aspects. In fact, many of these features can be combined in ways not specifically described in the claims and / or disclosed in the specification. Although each dependent claim listed below may be directly subordinated to only one claim, the disclosure of aspects includes each dependent claim being combined with each other claim in this set of claims. The phrase “at least one of” refers to any combination of these items, including single members. As an example, “at least one of a, b, or c” is intended to cover: a, b, c, ab, ac, bc, and abc, as well as any combination having multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other ordering of a, b, and c).
[0121] The elements, actions, or instructions used should not be interpreted as critical or necessary unless explicitly stated otherwise. Furthermore, as used, the articles “a” and “a certain” are intended to include one or more items and may be used interchangeably with “one or more.” Additionally, as used, the terms “set” and “group” are intended to include one or more items (e.g., related items, unrelated items, combinations of related and unrelated items, etc.) and may be used interchangeably with “one or more.” In cases where only one item is intended, the phrase “only one” or similar language is used. Moreover, as used, the terms “have,” “contain,” “include,” etc., are intended to be open-ended terms. Furthermore, the phrase “based on” is intended to mean “at least partially based on” unless otherwise explicitly stated.
Claims
1. A method for performing wireless communication by a user equipment (UE), comprising: LP permission for scheduling low-priority (LP) uplink transmissions in a time slot is received via downlink control information (DCI), the LP uplink transmissions overlapping with the set of high-priority (HP) uplink transmissions in the time slot, each HP uplink transmission being scheduled via a corresponding second DCI. The uplink shared channel preparation time, which varies depending on the subcarrier spacing (SCS) configuration and UE processing time capability, is determined based on the overlap between the LP uplink transmission and the HP uplink transmission set. The SCS configuration corresponds to the minimum SCS configuration selected from a first SCS configuration associated with HP permission corresponding to the HP uplink transmission in the HP uplink transmission set, a second SCS configuration associated with the HP uplink transmission in the HP uplink transmission set, a third SCS configuration associated with LP permission, and a fourth SCS configuration associated with the LP uplink transmission. Determine a time period up to the corresponding expected transmission time of each HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP permission, the time period varying with the uplink shared channel preparation time and the time duration corresponding to the reported UE capability; as well as The LP uplink transmission is cancelled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
2. The method of claim 1, further comprising receiving an HP grant set for scheduling the high priority (HP) uplink transmission set in the time slot, each HP grant in the HP grant set corresponding to a different HP uplink transmission in the HP uplink transmission set.
3. The method of claim 2, wherein the time period preceding the corresponding expected transmission time of each HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP grant is initiated after the last symbol of the corresponding HP grant.
4. The method of claim 3, further comprising transmitting each HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant no earlier than the corresponding expected transmission time.
5. The method of claim 1, wherein when each HP uplink transmission in the HP uplink transmission set corresponds to processing time capability 2, the UE processing time capability is processing time capability 2, and the value of the uplink shared channel preparation time for processing time capability 2 is less than the value of the uplink shared channel preparation time for processing time capability 1.
6. The method of claim 1, wherein when one of the HP uplink transmissions in the HP uplink transmission set corresponds to processing time capability 1, the UE processing time capability is processing time capability 1.
7. The method of claim 1, wherein the earliest HP uplink transmission includes an unpermitted HP uplink transmission based on HARQ-ACK information generated from a received downlink shared channel in the absence of a corresponding downlink control channel.
8. The method of claim 1, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission including a scheduling request (SR).
9. The method of claim 1, wherein the earliest HP uplink transmission is based on an unapproved HP uplink transmission generated with configuration approval.
10. The method of claim 1, wherein the UE assumes that the first symbol transmitted by the LP uplink is limited to including a demodulation reference signal (DM-RS).
11. An apparatus for wireless communication at a user equipment (UE), comprising: processor; Memory coupled to the processor; as well as Instructions, which are stored in the memory and, when executed by the processor, are operable to cause the device to: LP permission for scheduling low-priority (LP) uplink transmissions in a time slot is received via downlink control information (DCI), the LP uplink transmissions overlapping with the set of high-priority (HP) uplink transmissions in the time slot, each HP uplink transmission being scheduled via a corresponding second DCI. The uplink shared channel preparation time, which varies depending on the subcarrier spacing (SCS) configuration and UE processing time capability, is determined based on the overlap between the LP uplink transmission and the HP uplink transmission set. The SCS configuration corresponds to the minimum SCS configuration selected from a first SCS configuration associated with HP permission corresponding to the HP uplink transmission in the HP uplink transmission set, a second SCS configuration associated with the HP uplink transmission in the HP uplink transmission set, a third SCS configuration associated with LP permission, and a fourth SCS configuration associated with the LP uplink transmission. Determine a time period up to the corresponding expected transmission time of each HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP permission, the time period varying with the uplink shared channel preparation time and the time duration corresponding to the reported UE capability; as well as The LP uplink transmission is cancelled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
12. The apparatus of claim 11, wherein: The execution of the instruction further causes the device to receive an HP grant set for scheduling the high-priority (HP) uplink transmission set in the time slot. Each HP grant in the HP grant set corresponds to a different HP uplink transmission in the HP uplink transmission set; and The time period preceding the corresponding expected transmission time of each HP uplink transmission in the set of HP uplink transmissions scheduled based on the corresponding HP grant is initiated after the last symbol of the corresponding HP grant.
13. The apparatus of claim 12, wherein execution of the instructions further causes the apparatus to transmit each HP uplink transmission in the HP uplink transmission set scheduled based on the corresponding HP grant no earlier than the corresponding expected transmission time.
14. The apparatus of claim 11, wherein when each HP uplink transmission in the HP uplink transmission set corresponds to processing time capability 2, the UE processing time capability is processing time capability 2, and the value of the uplink shared channel preparation time for processing time capability 2 is less than the value of the uplink shared channel preparation time for processing time capability 1.
15. The apparatus of claim 11, wherein the UE processing time capability is processing time capability 1 when one of the HP uplink transmissions in the HP uplink transmission set corresponds to processing time capability 1.
16. The apparatus of claim 11, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission comprising HARQ-ACK information generated based on a received downlink shared channel in the absence of a corresponding downlink control channel.
17. The apparatus of claim 11, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission including a scheduling request (SR).
18. The apparatus of claim 11, wherein the earliest HP uplink transmission is based on an unapproved HP uplink transmission generated with configuration approval.
19. The apparatus of claim 11, wherein the UE assumes that the first symbol transmitted by the LP uplink is limited to including a demodulation reference signal (DM-RS).
20. A method for performing wireless communication by a network entity, comprising: Downlink control information (DCI) is transmitted to user equipment (UE) for scheduling low-priority (LP) uplink transmissions in a time slot, the LP uplink transmissions overlapping with the set of high-priority (HP) uplink transmissions in the time slot, each HP uplink transmission being scheduled via a corresponding second DCI. The uplink shared channel preparation time of the UE, which varies depending on the subcarrier spacing (SCS) configuration and UE processing time capability, is determined based on the overlap of the LP uplink transmission and the HP uplink transmission set. The SCS configuration corresponds to the minimum SCS configuration selected from a first SCS configuration associated with HP permission corresponding to the HP uplink transmission in the HP uplink transmission set, a second SCS configuration associated with the HP uplink transmission in the HP uplink transmission set, a third SCS configuration associated with LP permission, and a fourth SCS configuration associated with the LP uplink transmission. Determine the earliest corresponding transmission time for each HP uplink transmission in the HP uplink transmission set based on the corresponding HP, the earliest corresponding transmission time depending on the uplink shared channel preparation time and the time duration corresponding to the reported UE capability; as well as Based on the LP granting permission to receive the LP uplink transmission from the UE, the LP uplink transmission is canceled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
21. The method of claim 20, further comprising transmitting an HP grant set for scheduling the set of high priority (HP) uplink transmissions in the time slot, each HP grant in the HP grant set corresponding to a different HP uplink transmission in the set of HP uplink transmissions.
22. The method of claim 21, wherein the earliest transmission time of each HP uplink transmission in the HP uplink transmission set is the end of a time period initiated after the last symbol permitted by the corresponding HP.
23. The method of claim 22, further comprising receiving each HP uplink transmission in the HP uplink transmission set no earlier than the corresponding earliest transmission time.
24. The method of claim 20, wherein when each HP uplink transmission in the HP uplink transmission set corresponds to processing time capability 2, the UE processing time capability is processing time capability 2, and the value of the uplink shared channel preparation time for processing time capability 2 is less than the value of the uplink shared channel preparation time for processing time capability 1.
25. The method of claim 20, wherein when one of the HP uplink transmissions in the HP uplink transmission set corresponds to processing time capability 1, the UE processing time capability is processing time capability 1.
26. The method of claim 20, wherein the earliest HP uplink transmission includes an unpermitted HP uplink transmission based on HARQ-ACK information generated on the transmitted downlink shared channel in the absence of a corresponding downlink control channel.
27. The method of claim 20, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission including a scheduling request (SR).
28. The method of claim 20, wherein the earliest HP uplink transmission is based on an unapproved HP uplink transmission generated with configuration approval.
29. An apparatus for wireless communication at a network entity, comprising: processor; Memory coupled to the processor; as well as Instructions, which are stored in the memory and, when executed by the processor, are operable to cause the device to: Downlink control information (DCI) is transmitted to user equipment (UE) for scheduling low-priority (LP) uplink transmissions in a time slot, the LP uplink transmissions overlapping with the set of high-priority (HP) uplink transmissions in the time slot, each HP uplink transmission being scheduled via a corresponding second DCI. The uplink shared channel preparation time of the UE, which varies depending on the subcarrier spacing (SCS) configuration and UE processing time capability, is determined based on the overlap of the LP uplink transmission and the HP uplink transmission set. The SCS configuration corresponds to the minimum SCS configuration selected from a first SCS configuration associated with HP permission corresponding to the HP uplink transmission in the HP uplink transmission set, a second SCS configuration associated with the HP uplink transmission in the HP uplink transmission set, a third SCS configuration associated with LP permission, and a fourth SCS configuration associated with the LP uplink transmission. Determine the earliest corresponding transmission time for each HP uplink transmission in the HP uplink transmission set based on the corresponding HP, the earliest corresponding transmission time depending on the uplink shared channel preparation time and the time duration corresponding to the reported UE capability; as well as Based on the LP granting permission to receive the LP uplink transmission from the UE, the LP uplink transmission is canceled before the symbols of the LP uplink transmission overlap with the earliest HP uplink transmission in the HP uplink transmission set.
30. The apparatus of claim 29, wherein: The execution of the instruction further causes the device to transmit an HP grant set for scheduling the high-priority (HP) uplink transmission set in the time slot. Each HP grant in the HP grant set corresponds to a different HP uplink transmission in the HP uplink transmission set; and The earliest transmission time for each HP uplink transmission in the HP uplink transmission set is the end of the time period initiated after the last symbol permitted by the corresponding HP.
31. The apparatus of claim 30, wherein the execution of the instructions further causes the apparatus to receive each HP uplink transmission in the HP uplink transmission set no earlier than the corresponding earliest transmission time.
32. The apparatus of claim 29, wherein when each HP uplink transmission in the HP uplink transmission set corresponds to processing time capability 2, the UE processing time capability is processing time capability 2, and the value of the uplink shared channel preparation time for processing time capability 2 is less than the value of the uplink shared channel preparation time for processing time capability 1.
33. The apparatus of claim 29, wherein the UE processing time capability is processing time capability 1 when one of the HP uplink transmissions in the HP uplink transmission set corresponds to processing time capability 1.
34. The apparatus of claim 29, wherein the earliest HP uplink transmission includes an unpermitted HP uplink transmission comprising HARQ-ACK information generated based on the transmitted downlink shared channel in the absence of a corresponding downlink control channel.
35. The apparatus of claim 29, wherein the earliest HP uplink transmission is an unpermitted HP uplink transmission including a scheduling request (SR).
36. The apparatus of claim 29, wherein the earliest HP uplink transmission is based on an unapproved HP uplink transmission generated with configuration approval.