Ul ci enhancements for reduced-capability ues

Abstract

Certain aspects of the present disclosure provide techniques for enhancements to uplink cancellation indication (ULCI) for certain user equipment (UE) types, e.g., reduced capability (RedCap) UEs. An example method of a user UE generally includes receiving a ULCI indicating resources on which the UE is to modify one or more uplink transmissions, and processing the ULCI according to a first set of one or more parameters for ULCI processing specific to a first type of UE.

Description

Technical Field

[0001] Various aspects of this disclosure relate to wireless communications, and more specifically to techniques for enhancing uplink cancellation indication (ULCI) processing. Background Technology

[0002] Wireless communication systems are widely deployed to provide a variety of telecommunications services, such as telephone, video, data, messaging, and broadcasting. These wireless communication systems can employ multiple access technologies that enable communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access systems include 3GPP Long Term Evolution (LTE) systems, LTE-A systems, 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, and Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, to name just a few.

[0003] These multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different wireless devices to communicate at the city, national, regional, and even global levels. New radios (e.g., 5G NR) are examples of emerging telecommunications standards. NR is an enhancement set to the LTE mobile standard issued by 3GPP. NR is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, improving service, utilizing new spectrum, and using OFDMA with a cyclic prefix (CP) on both downlink (DL) and uplink (UL) for better integration with other open standards. To this end, NR supports beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation.

[0004] However, with the continued growth in demand for mobile broadband access, further improvements to NR and LTE technologies are needed. Preferably, these improvements should be applicable to other multiple access technologies and telecommunications standards that employ these technologies. Summary of the Invention

[0005] The systems, methods, and apparatus of this disclosure each have several aspects, none of which is solely responsible for its desired properties. Without limiting the scope of this disclosure as expressed by the appended claims, some features will now be briefly discussed. After considering this discussion, and particularly after reading the section entitled "Detailed Description," one will understand how the features of this disclosure provide advantages, such as improved coverage for random access procedures.

[0006] Some aspects provide a method for wireless communication performed by a user equipment (UE). The method generally includes receiving an uplink cancellation indication (ULCI) instructing the UE to modify one or more uplink transmission resources thereon, and processing the ULCI according to a first set of one or more parameters for ULCI processing specific to a first type of UE.

[0007] Some aspects provide a method for wireless communication performed by a network entity. The method generally includes sending a ULCI to a UE, instructing the UE to modify one or more uplink transmission resources thereon, based on a first set of one or more parameters of a ULCI specific to a first type of UE, and processing the uplink transmission according to the ULCI.

[0008] Various aspects of this disclosure provide components, apparatus, processors, and computer-readable media for performing the methods described herein.

[0009] To achieve the foregoing and related objectives, one or more aspects include the features fully described below and specifically pointed out in the claims. Certain illustrative features of the one or more aspects are set forth in detail in the following description and drawings. However, these features indicate only a few of the various ways in which the principles of each aspect can be employed. Attached Figure Description

[0010] To gain a more detailed understanding of the features described above in this disclosure, a more specific description of the above brief overview can be made by referring to various aspects (some of which are illustrated in the accompanying drawings). However, it should be noted that the drawings illustrate only certain typical aspects of this disclosure and should not be considered as limiting its scope, as other equally valid aspects can be acknowledged in this description.

[0011] Figure 1 It is a conceptual illustration of a block diagram of an example telecommunications network according to certain aspects of this disclosure.

[0012] Figure 2 This is a conceptual block diagram illustrating the design of an example base station (BS) and user equipment (UE) according to certain aspects of this disclosure.

[0013] Figure 3 An example of a frame format for a telecommunications system is illustrated according to certain aspects of this disclosure.

[0014] Figure 4A This is a diagram illustrating an example of the capability to reduce (RedCap) the UE according to certain aspects of this disclosure.

[0015] Figure 4B The illustration shows an example UE use case and its corresponding design goals.

[0016] Figures 5A to 5C This is an example timeline illustrating uplink (UL) cancellation indication (CI) signaling.

[0017] Figure 6 The illustration shows an example operation of wireless communication performed by a UE in accordance with certain aspects of this disclosure.

[0018] Figure 7 The illustration depicts example operations for wireless communication performed by a network entity in accordance with certain aspects of this disclosure.

[0019] Figure 8A and Figure 8B An example of ULCI signaling for time relaxation and / or extension of ULCI is illustrated in accordance with certain aspects of this disclosure.

[0020] Figure 9 The illustration shows a communication device that may include various components configured to perform the operations of the techniques disclosed herein, according to various aspects of this disclosure.

[0021] Figure 10 The illustration shows a communication device that may include various components configured to perform the operations of the techniques disclosed herein, according to various aspects of this disclosure.

[0022] For ease of understanding, the same reference numerals are used to denote the same elements in the figures where possible. It is conceivable that elements disclosed in one aspect may be usefully used in other aspects without specific description. Detailed Implementation

[0023] This disclosure relates to various aspects of wireless communications, and more specifically to techniques for enhanced Uplink Cancellation Indication (ULCI) processing. The enhancements provided herein can help support ULCI in systems deploying Reduced Capability (RedCap) UEs.

[0024] For example, the techniques presented in this paper allow RedCap UEs to handle ULCI with a more lenient (e.g., longer) timeline compared to the more stringent ULCI timelines supported by other types of UEs. As will be described in more detail below, these techniques also allow for extended time spans for applying ULCI and greater flexibility in the types of UL transmissions applying ULCI.

[0025] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the function and arrangement of the elements discussed without departing from the scope of this disclosure. Various processes or components may be appropriately omitted, substituted, or added to the examples. For example, the method may be performed in a sequence different from the stated order, and various steps may be added, omitted, or combined. Furthermore, features described for some examples may be combined in other examples. For example, any number of aspects set forth herein may be used to implement an apparatus or practice. Moreover, the scope of this disclosure is intended to cover apparatus or methods practiced using structures, functions, or structures and functions other than or different from the aspects set forth herein. It should be understood that any aspect of this disclosure may be embodied by one or more elements of the claims. The word “exemplary” is used herein to mean “serving as an example, instance, or illustration.” Any aspect described herein as “exemplary” is not necessarily to be construed as preferred or superior to other aspects.

[0026] The technologies described in this article can be used in various wireless communication technologies, such as LTE, CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other networks. The terms "network" and "system" are often used interchangeably. CDMA networks can implement radio technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. cdma2000 covers the IS-2000, IS-95, and IS-856 standards. TDMA networks can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA networks can implement radio technologies such as NR (e.g., 5G RA), Evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Fast-OFDMA, etc. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS).

[0027] New Radio (NR) is an emerging wireless communication technology being developed in conjunction with the 5G Technology Forum (5GTF). 3GPP Long Term Evolution (LTE) and LTE-Advanced (LTE-A) are versions of UMTS using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the 3rd Generation Partnership Project (3GPP). cdma2000 and UMB are described in documents from an organization called the 3rd Generation Partnership Project 2 (3GPP2). The technologies described herein can be used in the aforementioned wireless network and radio technologies, as well as other wireless network and radio technologies. For clarity, although terms commonly associated with 3G and / or 4G wireless technologies may be used to describe aspects herein, aspects of this disclosure can be applied to other generation-based communication systems, such as 5G and later technologies, including NR technology.

[0028] 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 above), millimeter wave (mmW) targeting high carrier frequencies (e.g., 25 GHz or above), massive machine-type communication (mMTC) targeting non-backward-compatible MTC technologies, and / or mission-critical communication targeting ultra-reliable low-latency communication (URLLC). These services may include latency and reliability requirements. These services may also have different transmission time intervals (TTIs) to meet their respective quality of service (QoS) requirements. Furthermore, these services can coexist in the same subframe.

[0029] Example wireless communication system

[0030] Figure 1 An example wireless communication network 100 in which various aspects of this disclosure may be implemented is illustrated. For example, UE 120 may be configured to implement, according to the various aspects discussed herein. Figure 6 Operation 600 processes the Uplink Cancellation Indication (ULCI) based on parameters used for ULCI processing. Similarly, base station 110 can be configured to perform... Figure 7 Operation 700 is used to signal the ULCI to the UE (e.g., UE 120).

[0031] like Figure 1As shown, the wireless communication network 100 may include a number of base stations (BS) 110 and other network entities. As used herein, BS and network entity may be interchangeable terms when referring to wireless communication entities. A BS may be a station communicating with a UE. Each BS 110 may provide communication coverage for a specific geographic area. In 3GPP, the term “cell” may refer to the coverage area of ​​a Node B (NB) and / or the NB subsystem serving that coverage area, depending on the context in which the term is used. In NR systems, the term “cell” and Next Generation Node B (gNB or eNodeB), NR BS, 5G NB, Access Point (AP), or Transmit / Receive Point (TRP) may be interchangeable. In some examples, a cell may not necessarily be fixed, and the geographic area of ​​a cell may move depending on the location of a mobile BS. In some examples, base stations may interconnect with each other and / or with one or more other base stations or network nodes (not shown) in the wireless communication network 100 via various types of backhaul interfaces, such as direct physical connections, wireless connections, virtual networks, or similar connections using any suitable transport network.

[0032] Typically, 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 can also be referred to as a radio technology, air interface, etc. A frequency can also be referred to as a carrier, subcarrier, channel, tone, subband, 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 5G RAT networks can be deployed.

[0033] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or other types of cells. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area and allow unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home) and allow restricted access for UEs associated with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in a home, etc.). A BS used for macrocells can be called a macro BS. A BS used for picocells can be called a pico BS. A BS used for femtocells can be called a femto BS or a home BS. Figure 1In the example shown, BS 110a, 110b, and 110c can be macro BSs for macro cells 102a, 102b, and 102c, respectively. BS 110x can be a pico BS for pico cell 102x. BS 110y and 110z can be femto BSs for femto cells 102y and 102z, respectively. A BS can support one or more (e.g., three) cells.

[0034] The wireless communication network 100 may also include relay stations. A relay station is a station that receives data and / or other information transmissions from an upstream station (e.g., a BS or a UE) and sends data and / or other information transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE relaying transmissions for other UEs. Figure 1 In the example shown, relay station 110r can communicate with BS110a and UE 120r to facilitate communication between BS 110a and UE 120r. A relay station can also be referred to as a relay BS, repeater, etc.

[0035] The wireless communication network 100 can be a heterogeneous network, comprising different types of base stations (BSs), such as macro BSs, pico BSs, femto BSs, repeaters, etc. These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference within the wireless communication network 100. For example, a macro BS can have a high transmit power level (e.g., 20 watts), while pico BSs, femto BSs, and repeaters can have lower transmit power levels (e.g., 1 watt).

[0036] The wireless communication network 100 can support synchronous or asynchronous operation. For synchronous operation, the base stations (BSs) can have similar frame timings, and transmissions from different BSs can be approximately time-aligned. For asynchronous operation, the BSs can have different frame timings, and transmissions from different BSs can be time-disaligned. The techniques described herein can be used for both synchronous and asynchronous operations.

[0037] Network controller 130 can be coupled to a collection of BSs and provide coordination and control for these BSs. Network controller 130 can communicate with BS 110 via backhaul. BS 110 can also communicate with each other via wireless or wired backhaul (e.g., directly or indirectly).

[0038] UE 120 (e.g., 120x, 120y, etc.) can be distributed throughout the wireless communication network 100, and each UE can be fixed or mobile. A UE can also be referred to as a mobile station, terminal, access terminal, user unit, station, customer front-end equipment (CPE), cellular phone, smartphone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or medical equipment, biosensor / device, wearable device (such as smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music device, video device, satellite radio, etc.), 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. Some UEs can be considered as machine-type communication (MTC) devices or evolved MTC (eMTC) devices. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that can communicate with a BS, another device (e.g., a remote device), or some other entity. For example, a wireless node can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, which can be narrowband IoT (NB-IoT) devices.

[0039] Some wireless networks (e.g., LTE) utilize Orthogonal Frequency Division Multiplexing (OFDM) on the downlink and Single-Carrier Frequency Division Multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, which are often referred to as tones, bins, etc. Data can be modulated onto each subcarrier. Typically, OFDM transmits modulation symbols in the frequency domain, while SC-FDM transmits them in the time domain. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the subcarrier spacing could be 15 kHz, and the minimum resource allocation (called a "resource block" (RB)) could be 12 subcarriers (or 180 kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, the nominal Fast Fourier Transform (FFT) size could be 128, 256, 512, 1024, or 2048, respectively. The system bandwidth can also be divided into subbands. For example, a subband can cover 1.08MHz (i.e., 6 resource blocks), and for system bandwidths of 1.25, 2.5, 5, 10, or 20MHz, there can be 1, 2, 4, 8, or 16 subbands, respectively.

[0040] While the aspects of the examples described herein can be associated with LTE technology, the aspects of this disclosure are applicable to other wireless communication systems, such as NR. NR can use OFDM with CP on both the uplink and downlink, and includes support for half-duplex operation using TDD. Beamforming can be supported, and beam direction can be dynamically configured. MIMO transmission with precoding can also be supported. MIMO configuration in DL can support up to 8 transmit antennas, with up to 8 streams in multi-layer DL transmission and up to 2 streams per UE. Multi-layer transmission with up to 2 streams per UE can be supported. Aggregation of multiple cells can be supported using up to 8 serving cells.

[0041] In some examples, access to the air interface can be scheduled. A scheduling entity (e.g., a BS) allocates resources for communication between some or all devices and equipment within its service area or cell. The scheduling entity can be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entity utilizes the resources allocated by the scheduling entity. A base station is not the only entity that can act as a scheduling entity. In some examples, a UE can act as a scheduling entity and can schedule resources for one or more subordinate entities (e.g., one or more other UEs), and other UEs can utilize the resources scheduled by that UE for wireless communication. In some examples, a UE can act as a scheduling entity in peer-to-peer (P2P) networks and / or mesh networks. In mesh network examples, UEs can communicate directly with each other in addition to communicating with a scheduling entity.

[0042] exist Figure 1 In the diagram, a solid line with a double arrowhead represents the expected transmission between the UE and the serving BS, which is the BS designated to serve the UE on the downlink and / or uplink. A thin dashed line with a double arrowhead represents interference transmission between the UE and the BS.

[0043] Figure 2 The illustrations show BS 110 and UE 120 (e.g., ...) that can be used to implement various aspects of this disclosure. Figure 1 Example components (described in the diagram). For example, antenna 252, processors 266, 258, 264 and / or controller / processor 280 of UE 120 can be configured to perform actions related to... Figure 6 The described operation, and a similar processor to the BS 110 can perform related operations. Figure 7 The described operation.

[0044] At BS 110, the transmit processor 220 can receive data from data source 212 and control information from controller / processor 240. The control information can be used for the Physical Broadcast Channel (PBCH), Physical Control Format Indicator Channel (PCFICH), Physical Hybrid ARQ Indicator Channel (PHICH), Physical Downlink Control Channel (PDCCH), Group Common PDCCH (GC PDCCH), etc. Data can be used for the Physical Downlink Shared Channel (PDSCH), etc. The processor 220 can process (e.g., encode and symbol map) the data and control information to obtain data symbols and control symbols, respectively. The processor 220 can also generate reference symbols, for example, for the Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), and Cell-Specific Reference Signal (CRS). The transmit (TX) Multiple-Input Multiple-Output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, and / or reference symbols where applicable, and can provide the output symbol stream to modulators (MODs) 232a to 232t. Each modulator 232 can process its own output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The downlink signals from modulators 232a to 232t can be transmitted via antennas 234a to 234t, respectively.

[0045] At UE 120, antennas 252a to 252r can receive downlink signals from base station 110 and can provide the received signals to demodulators (DEMODs) in transceivers 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, down-convert, and digitize) its respective received signal to obtain an input sample. Each demodulator can further process the input sample (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 can obtain received symbols from all demodulators 254a to 254r, perform MIMO detection on the received symbols where applicable, and provide the detected symbols. Receiver processor 258 can process (e.g., demodulate, deinterleave, and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information to controller / processor 280.

[0046] On the uplink, at UE 120, the transmitting processor 264 can receive and process data from data source 262 (e.g., for the Physical Uplink Shared Channel (PUSCH)) and control information from controller / processor 280 (e.g., for the Physical Uplink Control Channel (PUCCH)). The transmitting processor 264 can also generate reference symbols for reference signals (e.g., for Sounding Reference Signals (SRS)). Symbols from the transmitting processor 264 can be pre-encoded by the TXMIMO processor 266, further processed by demodulators in transceivers 254a to 254r (e.g., for SC-FDM, etc.), and transmitted to base station 110. At BS 110, uplink signals from UE 120 can be received by antenna 234, processed by modulator 232, detected by MIMO detector 236, and further processed by receiving processor 238 to obtain decoded data and control information transmitted by UE 120. The receiver processor 238 can provide the decoded data to the data sink 239 and the decoded control information to the controller / processor 240.

[0047] Controllers / processors 240 and 280 can direct operations at BS 110 and UE 120, respectively. Processor 240 and / or other processors and modules at BS 110 can execute or direct the execution of processes described herein. Memory 242 and 282 can store data and program code for BS 110 and UE 120, respectively. Scheduler 244 can schedule the UE to perform downlink and / or uplink data transmissions.

[0048] Figure 3 This diagram illustrates an example of frame format 300 for NR. The transmission timeline for each of the downlink and uplink can be divided into units of radio frames. Each radio frame can have a predetermined duration (e.g., 10 ms) and can be divided into 10 subframes, each 1 ms, indexed from 0 to 9. Depending on the subcarrier spacing, each subframe can include a variable number of time slots. Depending on the subcarrier spacing, each time slot can include a variable number of symbol periods (e.g., 7 or 14 symbols). The symbol periods in each time slot can be assigned an index. A micro-time slot, which can be referred to as a sub-time slot structure, refers to a transmission time interval with a duration less than one time slot (e.g., 2, 3, or 4 symbols).

[0049] Each symbol in a time slot can indicate the link direction used for data transmission (e.g., DL, UL, or flexible), and the link direction used for each subframe can be dynamically switched. The link direction can be based on the time slot format. Each time slot can include DL / UL data and DL / UL control information.

[0050] In NR, synchronization signal (SS) blocks are transmitted. SS blocks consist of PSS, SSS, and a two-symbol PBCH. SS blocks can be transmitted at fixed time slot positions, such as... Figure 3 The symbols 0-3 are shown. The UE can use PSS and SSS for cell search and acquisition. PSS provides half-frame timing, and SS provides CP length and frame timing. PSS and SSS provide cell identity. PBCH carries basic system information such as downlink system bandwidth, intra-radio frame timing information, SS burst set period, and system frame number. SS blocks can be organized into SS bursts to support beam scanning. Further system information, such as Residual Minimum System Information (RMSI), System Information Block (SIB), and Other System Information (OSI), can be transmitted on the Physical Downlink Shared Channel (PDSCH) in certain subframes. SS blocks can be transmitted up to 64 times, for example, up to 64 different beam directions for mmW. Up to 64 transmissions of SS blocks are called SS burst sets. SS blocks in an SS burst set are transmitted in the same frequency region, while SS blocks in different SS burst sets can be transmitted at different frequency locations.

[0051] In some cases, two or more dependent entities (e.g., UEs) can communicate with each other using sidelink signals. Real-world applications of these sidelink communications can include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle (V2V) communication, Internet of Things (IoE) communication, IoT communication, mission-critical meshes, and / or various other suitable applications. Typically, a sidelink signal can refer to a signal transmitted from one dependent entity (e.g., UE1) to another dependent entity (e.g., UE2) without relaying the communication through a scheduling entity (e.g., UE or BS), even if the scheduling entity may be used for scheduling and / or control purposes. In some examples, licensed spectrum can be used to transmit sidelink signals (unlike wireless LANs that typically use unlicensed spectrum).

[0052] The UE can operate in various radio resource configurations, including configurations associated with transmitting pilots using a dedicated resource set (e.g., Radio Resource Control (RRC) dedicated state, etc.) or configurations associated with transmitting pilots using a common resource set (e.g., RRC common state, etc.). When operating in RRC dedicated state, the UE can select the dedicated resource set for transmitting pilot signals to the network. When operating in RRC common state, the UE can select the common resource set for transmitting pilot signals to the network. In either case, the pilot signals transmitted by the UE can be received by one or more network access devices (such as AN, or DU, or portions thereof). Each receiving network access device can be configured to receive and measure pilot signals transmitted on the common resource set, and also to receive and measure pilot signals transmitted on the dedicated resource set allocated to the UE, the network access device being a member of the UE's network access device monitoring set. One or more of the CUs receiving measurements of the pilot signals transmitted to them by the receiving network access device or (multiple) receiving network access devices can use these measurements to identify the UE's serving cell or initiate a change of serving cell for one or more of the UEs.

[0053] Example capability reduction (RedCap) UE

[0054] Various technologies can be the focus of current wireless communication standards. For example, Rel-15 and / or Rel-16 can focus on high-end smartphones (such as enhanced mobile broadband (eMBB)) and other vertical sectors such as ultra-reliable low-latency communication (URLLC) and / or vehicle-to-everything (V2X) communication. In some wireless communication standards (e.g., Rel-17 and later), there may be a strong desire for new radios (NR) to be scalable and deployable in a more efficient and cost-effective manner. Therefore, a new UE type with reduced capability (RedCap) has been introduced. In particular, RedCap UEs can exhibit an overall relaxation of peak throughput, as well as lower latency and / or reliability requirements. For example, compared to high-end eMBB and / or URLLC devices in Rel-15 and / or Rel-16, especially for industrial sensor use cases, RedCap UEs can have lower device costs and complexity. For many use cases, RedCap UEs can be implemented through device designs with a more compact form factor. RedCap UE can also support frequency range (FR) 1 and / or 2 bands for Frequency Division Duplex (FDD) and / or Time Division Duplex (TDD) communication.

[0055] Therefore, some design goals for NR RedCap UEs may include scalable resource allocation, enhanced coverage in DL and / or UL, power savings in all RRC states, and / or coexistence with NR Advanced UEs. Figure 4A and Figure 4B As shown, the NR-RedCap UE can be a smart wearable device, a sensor / camera, or any other device configured for relaxed Internet of Things (IoT) communication. Furthermore, various bit rates, latency, reliability levels, and battery life can be applied based on the use cases of the RedCap UE. Additionally, RedCap UE functions and / or capabilities can overlap with those of Long Term Evolution (LTE) and / or 5G devices (e.g., advanced 5G devices). For example, the functionality of a relaxed IoT device can overlap with that of a URLLC device, the functionality of a smart wearable device can overlap with that of a Low Power Wide Area (LPWA) Massive Machine Type Communication (mMTC) device, and / or the functionality of a sensor / camera can overlap with that of an eMBB device.

[0056] RedCap UE Example ULCI Enhancement

[0057] Various aspects of this disclosure relate to wireless communications, and more specifically to techniques for enhanced uplink cancellation indication (ULCI) processing, such as to support capability-reduced (RedCap) UEs.

[0058] Uplink cancellation allows the network to prioritize certain types of services over others. The network can signal to the UE to cancel a portion of a lower-priority uplink transmission that has already been scheduled, in order to avoid interfering with higher-priority uplink transmissions (e.g., from another UE).

[0059] For example, when a network entity allocates resources scheduled for enhanced mobile broadband (eMBB) transmissions to ultra-reliable low-latency communication (URLLC) UEs (e.g., due to latency requirements), the network entity may send a ULCI to the eMBB UEs to request these UEs to stop their transmissions. When a UE detects the ULCI from the network entity, the UE therefore stops transmitting (without resuming transmission).

[0060] In conventional systems, ULCI is typically used for Physical Uplink Shared Channel (PUSCH) and Sound Reference Signal (SRS) transmissions. As in the example mentioned above, ULCI is implemented to improve URLLC UE performance.

[0061] like Figure 5A As shown, the network can utilize uplink resources used for eMBB PUSCH transmissions to schedule the UE. To accommodate URLLC services, for example, the network can issue a ULCI to the UE, instructing the UE to suspend scheduled (eMBB) PUSCH or SRS.

[0062] like Figure 5B and Figure 5C As shown, ULCI can be canceled in the window (T) CI Within the application, the cancellation window begins from the end of the Physical Downlink Control Channel (PDCCH) reception (e.g., Downlink Control Information (DCI)). proc，2 +d, where T proc，2 This represents the minimum processing time for UE Cap#2, and d is reported as a UE capability, with a value of 0, 1, or 2. Even for Cap#1 UEs, the minimum processing time for Cap#2 can be assumed. The frequency span of the ULCI can be determined by variables such as the A-point reference point OffsetToCarrier, RB start (per UE per carrier), and / or RB length (per UE per carrier).

[0063] exist Figure 5B In the example shown, ULCI causes a portion of the PUSCH to be cancelled. In some cases, PUSCH recovery may not be supported even if the resource becomes available after it was indicated via ULCI. Figure 5C In the example shown, ULCI causes the cancellation of one or more SRS transmissions.

[0064] In some systems (e.g., Rel-17 and later), RedCap UEs are expected to support use cases with varying Quality of Service (QoS) requirements. Furthermore, some RedCap UEs (e.g., security-related sensors) may have more stringent latency / reliability requirements than other implementations of RedCap UEs. Some Rel-17 RedCap UEs may not even support Rel-16 ULCI capabilities (e.g., Cap#2). Additionally, the coverage enhancements of Rel-17 (and later) RedCap UEs are expected to result in increased UL resource consumption, potentially increasing the likelihood of scheduling conflicts with non-RedCap UEs. Therefore, introducing inter-UE prioritization among RedCap UEs to prioritize use cases with lower latency and higher reliability may be beneficial.

[0065] Therefore, some aspects provide techniques for improved ULCI processing performed in a UE type-specific manner. For example, some aspects are for ULCI monitoring and processing by UEs with a more relaxed timeline (e.g., compared to Cap#2) (e.g., RedCap UE). Furthermore, in some aspects, since inter-slot repetition is supported for Rel-17 UL coverage enhancement, and repetition may not be continuous in the time domain (e.g., interrupted by non-UL time slots / symbols), the time span can be extended to apply ULCI across multiple repetitions.

[0066] Figure 6An example operation 600 for wireless communication according to certain aspects of this disclosure is illustrated. Operation 600 can be performed, for example, by a UE (e.g., UE 120a in wireless communication network 100) to process ULCI according to parameters for ULCI processing.

[0067] Operation 600 begins at 602 by receiving a ULCI indicating that the UE will modify one or more uplink transmission resources thereon.

[0068] At 604, the UE processes the ULCI according to the first set of one or more parameters for ULCI processing specific to the first type of UE.

[0069] Figure 7 The illustration depicts an example operation 700 for wireless communication performed by a network entity, and can be considered as a... Figure 7 This is a supplement to operation 700. For example, operation 700 can be executed by BS 110 to notify ULCI to execute via a signal. Figure 7 Operation 700 UE.

[0070] Operation 700 begins at 702 by sending a ULCI to the UE according to the first set of one or more parameters of a ULCI specific to the first type of UE, the ULCI instructing the UE to modify one or more uplink transmission resources thereon.

[0071] At position 704, the network entity processes uplink transmissions according to ULCI.

[0072] In some cases, UE ULCI monitoring and processing can be performed using a more relaxed timeline (e.g., compared to Cap#2). For example, as Figure 8A As shown, if a network entity decides to cancel the UL transmission of RedCapUE, the cancellation window corresponding to the ULCI can start from the last symbol T of the PDCCH carrying the DCI that transmits the ULCI. RedCap，ULCI (For example, multiple time slots). In some respects, T RedCap，ULCI It can be greater than Figures 5B to 5C Processing time T Proc，2+d The processing time. The duration of the cancellation window can be T. RedCap，CI This cancellation can be applied to uplink bursts, which may include one or more uplink signals / channels.

[0073] In some cases, T Redcap，ULCIThe UE can be configured at the time slot level through a combination of system information (SI) dedicated to the UE, radio resource control (RRC) signaling configured semi-statically for the UE, RRC configuration information for the UE's active UL bandwidth portion (BWP), subfields of the DCI that transmits ULCI, and / or lookup tables (e.g., defined in the standard or transmitted via RRC signaling) and UE capability signaling.

[0074] In some respects, the time span for UL resources that can be cancelled by ULCI can be extended. For example, such as... Figure 8B As shown, since inter-slot repetition may be discontinuous in the time domain (e.g., resources allocated to “UUDFUU”, where repetition on UL is interrupted by DL / flexible symbols / slots), the time span T of cancelable UL resources can be extended. RedCap , CI This causes cancellation to occur in all repeated UL resources. As shown in the figure, ULCI can be applied to one or more uplink bursts within a cancellation window, where each uplink burst can include one or more uplink channels / signals (e.g., including PUSCH, PUCCH, SRS, PRACH, and msgA). If ULCI is applied to multiple UL bursts, the UL bursts can be discontinuous in the time domain.

[0075] In some cases, the time span configuration can be UE-specific or group-common. Various options can be considered when specifying the ULCI time span. For example, the start slot / symbol (S) and the length of the slot / symbol (L) can be encoded by a start and length indicator vector (SLIV), where the values ​​of S and L are counted only for UL resources. As another example, the set of UL slots / symbols can be sequentially divided into multiple groups, where each group includes the same number of UL slots / symbols.

[0076] As mentioned above, in conventional systems, ULCI may only be applicable to PUSCH and SRS. However, some aspects provide extended applications of ULCI to include PUSCH, SRS, PUCCH, and / or Physical Random Access Channel (PRACH).

[0077] Furthermore, the UE can implement additional conditions to determine whether to cancel certain UL resources (e.g., for PUCCH and / or PRACH). For example, the UE can determine that ULCI applies only to PUCCH carrying a P-CSI report. As another example, the UE can determine that ULCI applies to PRACH transmitted in an RRC connection state used for a 4-step RACH procedure or a 2-step RACH procedure.

[0078] In some cases, network entities can provide supplementary information regarding the priority of the ULCI. This can be achieved, for example, through explicit indications in the ULCI and / or implicit indications by de-indicating the mapping of the Radio Network Temporary Identifier (CI-RNTI), Common Search Space (CSS) configuration, and / or Demodulation Reference Signal (DMRS) scrambling. The UE receiving this supplementary information in any form can then perform the ULCI accordingly (e.g., knowing what additional conditions to apply, what timing, and / or what uplink transmissions are constrained by the ULCI).

[0079] Figure 9 The illustration shows a communication device 900, which may include operations configured to perform the techniques disclosed herein (e.g., Figure 6 The communication device 900 includes various components (e.g., corresponding to device plus functional components) shown in the diagram. The communication device 900 includes a processing system 902 coupled to a transceiver 908. The transceiver 908 is configured to transmit and receive signals for the communication device 900 via an antenna 910, such as the various signals described herein. The processing system 902 can be configured to perform processing functions of the communication device 900, including processing signals received and / or transmitted by the communication device 900.

[0080] Processing system 902 includes processor 904 coupled to computer-readable medium / memory 912 via bus 906. In some aspects, computer-readable medium / memory 912 is configured to store, when executed by processor 904, cause processor 904 to perform... Figure 6 The operations shown herein, or other operations for performing the various techniques discussed herein, may be instructions (e.g., computer-executable code). In some aspects, the computer-readable medium / memory 912 stores code 914 for receiving a ULCI instructing the UE to modify one or more uplink transmission resources thereon; and code 916 for processing the ULCI according to a first set of one or more parameters for ULCI processing specific to a first type of UE. In some aspects, the processor 904 has circuitry configured to implement the code stored in the computer-readable medium / memory 912. The processor 904 includes circuitry 918 for receiving a ULCI instructing the UE to modify one or more uplink transmission resources thereon; and circuitry 920 for processing the ULCI according to a first set of one or more parameters for ULCI processing specific to a first type of UE.

[0081] Figure 10 The illustration shows a communication device 1000, which may include operations configured to perform the techniques disclosed herein (such as...). Figure 7The communication device 1000 includes various components (e.g., corresponding to component plus functional components) of the operation shown. The communication device 1000 includes a processing system 1002 coupled to a transceiver 1008. The transceiver 1008 is configured to transmit and receive signals, such as the various signals described herein, for the communication device 1000 via an antenna 1010. The processing system 1002 can be configured to perform processing functions of the communication device 1000, including processing signals received and / or transmitted by the communication device 1000.

[0082] Processing system 1002 includes processor 1004 coupled to computer-readable medium / memory 1012 via bus 1006. In some aspects, computer-readable medium / memory 1012 is configured to store data that, when executed by processor 1004, causes processor 1004 to perform certain actions. Figure 7 The operations shown herein, or other operations performed using the various techniques discussed herein, may be instructions (e.g., computer-executable code). In some aspects, the computer-readable medium / memory 1012 stores code 1014 for sending to the UE an ULCI instructing the UE to modify one or more uplink transmission resources thereon according to a first set of one or more parameters of an ULCI specific to a first type of UE; and code 1016 for processing uplink transmissions according to the ULCI. In some aspects, the processor 1004 has circuitry configured to implement the code stored in the computer-readable medium / memory 1012. The processor 1004 includes circuitry 1018 for sending to the UE an ULCI instructing the UE to modify one or more uplink transmission resources thereon according to a first set of one or more parameters of an ULCI specific to a first type of UE; and circuitry 1020 for processing uplink transmissions according to the ULCI.

[0083] Example

[0084] Aspect 1: A method for wireless communication performed by a user equipment (UE), comprising: receiving an uplink cancellation indication (ULCI) indicating that the UE will modify one or more uplink transmission resources thereon; and processing the ULCI according to a first set of one or more parameters for ULCI processing specific to a first type of UE.

[0085] Aspect 2: According to the method of aspect 1, wherein the first type of UE includes a minimum processing time reduced (RedCap) UE that supports a minimum processing time greater than that supported by the second type of UE.

[0086] Aspect 3: The method according to aspect 1 or 2, wherein the first group of one or more parameters includes at least one timing parameter defining the window in which ULCI is applied.

[0087] Aspect 4: According to the method of aspect 3, wherein the timing parameter indicates that the window in which ULCI is applied begins in multiple time slots after the physical downlink control channel (PDCCH) carrying downlink control information (DCI) for transmitting ULCI ends.

[0088] Aspect 5: The method according to aspect 3 or 4, wherein the timing parameters are indicated via at least one of system information (SI) dedicated to the first type of UE; radio resource control (RRC) signaling semi-statically configured for the first type of UE; or RRC configuration information of the active uplink bandwidth portion (UL BWP) of the first type of UE.

[0089] Aspect 6: The method according to any one of Aspects 3-5, wherein the timing parameters are transmitted via a subfield that transmits downlink control information of the ULCI.

[0090] Aspect 7: The method according to any one of Aspects 3-6, wherein the timing parameters are determined via a combination of a lookup table and UE capability signaling.

[0091] Aspect 8: The method according to any one of Aspects 1-7, wherein the first group of one or more parameters includes at least one timing parameter defining the time span of the uplink resources to which ULCI can be applied.

[0092] Aspect 9: According to the method of aspect 8, the time span includes continuous and discontinuous uplink symbols or time slots within a frame for time division duplex (TDD) and half-duplex frequency division duplex (HD-FDD) operations.

[0093] Aspect 10: The method described in aspect 8 or 9, wherein the time span is determined based on the starting time slot or symbol and the length of the time slot or symbol.

[0094] Aspect 11: The method according to aspect 10, wherein the start slot or symbol is encoded in the start and length indicator vector (SLIV) and only uplink resources are considered.

[0095] Aspect 12: The method according to any one of Aspects 8-11, wherein the time span spans a set of UL slots or symbols that are sequentially divided into multiple groups, wherein each group includes the same number of uplink slots or symbols.

[0096] Aspect 13: The method according to any one of Aspects 1-12, wherein processing the ULCI includes applying the ULCI to at least one of: Physical Uplink Control Channel (PUCCH) or Physical Random Access Channel (PRACH) transmission.

[0097] Aspect 14: The method according to aspect 13, wherein ULCI is applied to PUCCH or PRACH transmission if one or more conditions are met.

[0098] Aspect 15: According to the method described in aspect 14, one or more conditions include PUCCH carrying only channel state information (CSI) reports.

[0099] Aspect 16: The method according to aspect 14 or 15, wherein one or more conditions include transmitting PRACH when the UE is in a Radio Resource Control (RRC) connection state for a 4-step RACH or 2-step RACH procedure.

[0100] Aspect 17: The method according to any one of aspects 1-16 further includes: receiving signaling indicating the priority of applying ULCI.

[0101] Aspect 18: The method according to aspect 17, wherein the signaling includes at least one of an explicit indication in ULCI, an implicit indication mapped by a Radio Network Temporary Identifier (RNTI), a Common Search Space (CSS) configuration, or a Demodulation Reference Signal (DMRS) scrambling.

[0102] Aspect 19: A method for wireless communication performed by a network entity, comprising: sending a ULCI to a UE instructing the UE to modify one or more uplink transmissions thereon, based on a first set of one or more parameters of a ULCI for a first type of UE, and processing the uplink transmissions according to the ULCI.

[0103] Aspect 20: The method according to aspect 19, wherein the first type of UE includes a RedCap UE that supports a minimum processing time greater than the minimum processing time supported by the second type of UE.

[0104] Aspect 21: The method according to aspect 19 or 20, wherein the first group of one or more parameters includes at least one timing parameter defining the window in which ULCI is applied.

[0105] Aspect 22: According to the method of aspect 21, wherein the timing parameter indicates that the window in which ULCI is applied begins after the end of the PDCCH carrying the DCI for transmitting ULCI.

[0106] Aspect 23: The method according to aspect 21 or 22, wherein the timing parameter is indicated by at least one of: SI dedicated to the first type of UE; RRC signaling semi-statically configured for the first type of UE; or RRC configuration information of the active UL BWP of the first type of UE.

[0107] Aspect 24: The method according to any one of aspects 21-23, wherein the timing parameters are transmitted via a subfield that transmits downlink control information of the ULCI.

[0108] Aspect 25: The method according to any one of aspects 21-24, wherein the timing parameters are based on a combination of a lookup table and UE capability signaling.

[0109] Aspect 26: The method according to any one of aspects 19-25, wherein the first group of one or more parameters includes at least one timing parameter defining the time span of the uplink resources to which ULCI can be applied.

[0110] Aspect 27: The method according to aspect 26, wherein the time span includes consecutive and non-consecutive uplink symbols or time slots within a frame for TDD and HD-FDD operations.

[0111] Aspect 28: The method described in aspect 26 or 27, wherein the time span is determined based on the starting time slot or symbol and the length of the time slot or symbol.

[0112] Aspect 29: The method according to aspect 28, wherein the start time slot or symbol is encoded in SLIV and only uplink resources are considered.

[0113] Aspect 30: The method according to any one of Aspects 26-29, wherein the time span spans a set of UL slots or symbols that are sequentially divided into multiple groups, wherein each group includes the same number of uplink slots or symbols.

[0114] Aspect 31: The method according to any one of aspects 19-30, wherein processing ULCI includes applying ULCI to at least one of: PUCCH or PRACH transmission.

[0115] Aspect 32: According to the method of aspect 31, ULCI is applied to PUCCH or PRACH transmission if one or more conditions are met.

[0116] Aspect 33: According to the method described in aspect 32, one or more conditions include that PUCCH carries only CSI reports.

[0117] Aspect 34: The method according to aspect 32 or 33, wherein one or more conditions include sending PRACH when the UE is in an RRC connection state for a 4-step RACH or 2-step RACH procedure.

[0118] Aspect 35: The method according to any one of aspects 19-34 further includes: sending an indication of the priority of applying ULCI.

[0119] Aspect 36: The method according to aspect 35, wherein the indication includes at least one of an explicit indication in ULCI, an implicit indication mapped by RNTI, CSS configuration, or DMRS scrambling.

[0120] Aspect 37: An apparatus for wireless communication, comprising a memory and at least one processor coupled to the memory, the memory and the at least one processor being configured to perform any of the operations of aspects 1-36.

[0121] Aspect 38: An apparatus for wireless communication performed by a UE, comprising components for performing any one of the operations of aspects 1-36.

[0122] Aspect 39: A computer-readable medium having instructions stored thereon for performing any one of the operations of aspects 1-36.

[0123] The techniques described in this article can be used in various wireless communication technologies, such as NR (e.g., 5G NR), 3GPP Long Term Evolution (LTE), LTE-A Advanced (LTE-A), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single Carrier Frequency Division Multiple Access (SC-FDMA), Time Division Synchronous Code Division Multiple Access (TD-SCDMA), and other networks. The terms "network" and "system" are often used interchangeably. CDMA networks can implement wireless technologies such as Universal Terrestrial Radio Access (UTRA), cdma2000, etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. cdma2000 covers the IS-2000, IS-95, and IS-856 standards. TDMA networks can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA networks can implement radio technologies such as NR (e.g., 5G RA), evolved UTRA (E-UTRA), Ultra Mobile Broadband (UMB), IEEE 802.11 (WiFi), IEEE 802.16 (WiMAX), IEEE 802.20, and Flash-OFDMA. UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). LTE and LTE-A are UMTS versions using E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the 3rd Generation Partnership Project (3GPP). CDMA2000 and UMB are described in documents from an organization called 3rd Generation Partnership Project 2 (3GPP2). NR is an emerging wireless communication technology under development.

[0124] The techniques described herein can be used in the wireless networks and radio technologies mentioned above, as well as other wireless networks and radio technologies. For clarity, although terms commonly associated with 3G, 4G, and / or 5G wireless technologies may be used to describe aspects herein, aspects of this disclosure can be applied to other generation-based communication systems.

[0125] In 3GPP, the term "cell" can refer to the coverage area of ​​a Node B (NB) and / or the NB subsystem serving that coverage area, depending on the context in which the term is used. In NR systems, the term "cell" is used interchangeably with BS, Next Generation Node B (gNB or gNodeB), Access Point (AP), Distributed Unit (DU), and Carrier or Transport Receive Point (TRP). A BS can provide communication coverage for macrocells, picocells, femtocells, and / or other types of cells. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and can allow unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area and can allow unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home) and can allow restricted access for UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG), UEs of users in a home, etc.). A BS used for a macrocell can be called a macro BS. A BS used for a picocell can be called a pico BS. A BS used for a femtocell can be called a femto BS or a home BS.

[0126] A UE can also be referred to as a mobile station, terminal, access terminal, user unit, station, customer front-end equipment (CPE), cellular phone, smartphone, personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, appliance, medical device or medical equipment, biosensor / device, wearable device (such as smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), entertainment device (e.g., music device, video device, satellite radio, etc.), 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. Some UEs can be considered as machine-type communication (MTC) devices or evolved MTC (eMTC) devices. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., that can communicate with a BS, another device (e.g., a remote device), or some other entity. For example, a wireless node can provide connectivity to or to a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices, which can be narrowband IoT (NB-IoT) devices.

[0127] Some wireless networks (e.g., LTE) utilize Orthogonal Frequency Division Multiplexing (OFDM) on the downlink and Single-Carrier Frequency Division Multiplexing (SC-FDM) on the uplink. OFDM and SC-FDM divide the system bandwidth into multiple (K) orthogonal subcarriers, often referred to as tones, frequency bands, etc. Each subcarrier can be modulated with data. Generally, modulation symbols are transmitted in the frequency domain via OFDM and in the time domain via SC-FDM. The spacing between adjacent subcarriers can be fixed, and the total number of subcarriers (K) can depend on the system bandwidth. For example, the subcarrier spacing could be 15 kHz, and the minimum resource allocation (called a “resource block” (RB)) could be 12 subcarriers (or 180 kHz). Therefore, for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, the nominal Fast Fourier Transform (FFT) step size could be 128, 256, 512, 1024, or 2048, respectively. System bandwidth can also be divided into subbands. For example, a subband can cover 1.08 MHz (e.g., 6 RBs), and there can be 1, 2, 4, 8, or 16 subbands for system bandwidths of 1.25, 2.5, 5, 10, or 20 MHz, respectively. In LTE, the basic transmission time interval (TTI) or packet duration is a 1 ms subframe.

[0128] NR can utilize OFDM with CP on both uplink and downlink, and includes support for half-duplex operation using TDD. In NR, subframes are still 1ms, but the basic TTI is called a slot. Subframes contain a variable number of slots (e.g., slots 1, 2, 4, 8, 16…) depending on the subcarrier spacing. NR RBs are 12 consecutive frequency subcarriers. NR can support a basic subcarrier spacing of 15kHz, and other subcarrier spacings can be defined relative to the basic subcarrier spacing, such as 30kHz, 60kHz, 120kHz, 240kHz, etc. Symbol and slot lengths scale with the subcarrier spacing. The CP length also depends on the subcarrier spacing. Beamforming can be supported, and beam direction can be dynamically configured. MIMO transmission with precoding can also be supported. In some examples, MIMO configurations in DL can support up to 8 transmit antennas with up to 8 streams and up to 2 streams per UE in multilayer DL transmission. In some examples, multilayer transmission with up to 2 streams per UE can be supported. It can support aggregation of multiple cells with up to 8 serving cells.

[0129] In some examples, access to the air interface can be scheduled. A scheduling entity (e.g., a BS) allocates resources for communication between some or all devices and equipment within its service area or cell. The scheduling entity can be responsible for scheduling, allocating, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entities utilize the resources allocated by the scheduling entity. A base station is not the only entity that can act as a scheduling entity. In some examples, a UE can act as a scheduling entity and can schedule resources for one or more subordinate entities (e.g., one or more other UEs), and other UEs can utilize the resources scheduled by that UE for wireless communication. In some examples, a UE can act as a scheduling entity in a peer-to-peer (P2P) network and / or a mesh network. In the mesh network example, UEs can communicate directly with each other in addition to communicating with a scheduling entity.

[0130] In some examples, two or more dependent entities (e.g., UEs) can communicate with each other using sidelink signals. Practical applications of such sidelink communication can include public safety, proximity services, UE-to-network relay, vehicle-to-vehicle (V2V) communication, Internet of Things (IoE) communication, IoT communication, mission-critical meshes, and / or various other suitable applications. Generally, a sidelink signal can refer to a signal that allows communication from one dependent entity (e.g., UE1) to another dependent entity (e.g., UE2) without relaying the communication through a scheduling entity (e.g., UE or BS), even if the scheduling entity can be used for scheduling and / or control purposes. In some examples, licensed spectrum (unlike wireless LANs that typically use unlicensed spectrum) can be used to communicate sidelink signals.

[0131] The methods disclosed herein include one or more steps or actions for implementing the methods. The method steps and / or actions may be interchanged without departing from the scope of the claims. In other words, unless a specific order of steps or actions is specified, the order and / or use of a particular step and / or action may be modified without departing from the scope of the claims.

[0132] As used herein, the phrase “at least one” in the list of items refers to any combination of these items, including a single member. 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 with multiple identical elements (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc, and ccc, or any other permutation of a, b, and c).

[0133] As used herein, the term "determine" encompasses a wide variety of actions. For example, "determine" can include calculation, operation, processing, derivation, investigation, searching (e.g., looking in a table, database, or other data structure), ascertaining, etc. Furthermore, "determine" can include receiving (e.g., receiving information), accessing (e.g., accessing data in memory), etc. Additionally, "determine" can include parsing, picking, selecting, building, etc.

[0134] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, these claims are not intended to be limited to the aspects shown herein, but rather to conform to the full scope consistent with the language of the claims, wherein, unless specifically stated otherwise, a singular reference to an element does not mean “one and only one,” but rather “one or more.” Unless otherwise specifically stated otherwise, the term “some” means one or more. All structural and functional equivalents of elements throughout the various aspects described herein that are known or will be known hereafter by a person skilled in the art are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, nothing disclosed herein is intended to be offered to the public, whether or not such disclosure is expressly recited in the claims. No claim element shall be interpreted pursuant to Section 112(f) of Title 35 of the United States Code unless the element is expressly recited using the phrase “component for…” or, in the case of a method claim, using the phrase “step for…”.

[0135] The various operations described above can be performed by any suitable component capable of performing the corresponding function. This component may include various hardware and / or software components and / or modules, including but not limited to circuits, application-specific integrated circuits (ASICs), or processors. Typically, in the presence of the operations shown in the figure, these operations may have corresponding paired (counterpart) means-plus-function components with similar numbering.

[0136] The various illustrative logic blocks, modules, and circuits described herein can be implemented or performed using a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device (PLD), discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but alternatively, the processor may be any commercially available processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors combined with a DSP core, or any other such configuration.

[0137] If implemented in hardware, an example hardware configuration could include a processing system within a wireless node. This processing system could be implemented using a bus architecture. Depending on the specific purpose of the processing system and overall design constraints, the bus could include any number of interconnect buses and bridges. The bus can link various circuits together, including processors, machine-readable media, and bus interfaces. Among other things, the bus interface can be used to connect network adapters to the processing system via the bus. The network adapter can be used to implement signal processing functions at the PHY layer. In the case of user terminal 120 (see...),... Figure 1 In this case, a user interface (e.g., keyboard, monitor, mouse, joystick, etc.) can also be connected to the bus. The bus can also link various other circuits, such as timing sources, peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and will not be described further. The processor can be implemented using one or more general-purpose and / or purpose-specific processors. Examples include microprocessors, microcontrollers, DSP processors, and other circuits capable of executing software. Those skilled in the art will recognize how best to implement the functions of the processing system according to its specific purpose and the overall design constraints imposed on the system as a whole.

[0138] If implemented in software, the functionality can be stored on or transmitted via a computer-readable medium as one or more instructions or code. Whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise, software should be broadly interpreted as representing instructions, data, or any combination thereof. Computer-readable media includes both computer storage media and communication media, with communication media encompassing any medium that facilitates the transfer of a computer program from one location to another. The processor may be responsible for managing the bus and general processing, including the execution of software modules stored on the machine-readable storage medium. The computer-readable storage medium can be coupled to the processor, allowing the processor to read information from and write information to the storage medium. Alternatively, the storage medium can be integrated into the processor. As an example, the machine-readable medium may include a transmission line, a carrier wave modulated by data, and / or a computer-readable storage medium on which instructions separate from the wireless node are stored, all of which can be accessed by the processor via a bus interface. Alternatively or additionally, the machine-readable medium or any portion thereof may be integrated into the processor, such as in the case of a cache and / or a general-purpose register file. Examples of machine-readable storage media may include, for example, RAM (random access memory), flash memory, ROM (read-only memory), PROM (programmable read-only memory), EPROM (erasable programmable read-only memory), EEPROM (electrically erasable programmable read-only memory), registers, disks, optical disks, hard disks, or any other suitable storage media, or any combination thereof. Machine-readable media may be included in a computer program product.

[0139] Software modules may include single or multiple instructions and may be distributed across several different code segments, different programs, and multiple storage media. Computer-readable media may include several software modules. A software module includes instructions that, when executed by a device such as a processor, cause the processing system to perform various functions. Software modules may include sending modules and receiving modules. Each software module may reside in a single storage device or be distributed across multiple storage devices. As an example, when a triggering event occurs, a software module may be loaded from a hard disk drive into RAM. During the execution of a software module, the processor may load some instructions into a cache to improve access speed. One or more cache lines may then be loaded into a general-purpose register file for the processor to execute. When referring to the functionality of a software module below, it should be understood that these functions are implemented by the processor when executing instructions from that software module.

[0140] Furthermore, any connection is appropriately defined as a computer-readable medium. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technology (such as infrared (IR), radio, and microwave), then that coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technology (such as infrared, radio, and microwave) is included in the definition of medium. The disks and optical discs used herein include compact discs (CDs), laser discs, optical discs, digital versatile optical discs (DVDs), floppy disks, and... Disks, where magnetic disks typically reproduce data magnetically, and optical disks reproduce data optically using lasers. Therefore, in some aspects, computer-readable media can include non-transitory computer-readable media (e.g., tangible media). Furthermore, in other aspects, computer-readable media can include transient computer-readable media (e.g., signals). Combinations of the above should also be included within the scope of computer-readable media.

[0141] Therefore, certain aspects may include a computer program product for performing the operations presented herein. For example, such a computer program product may include a computer-readable medium having instructions stored thereon (and / or encoded thereon) that can be executed by one or more processors to perform the operations described herein, for example, for performing the operations described herein and... Figure 6-10 The instructions for operation and technology are shown in the diagram.

[0142] Furthermore, it should be understood that, where applicable, modules and / or other suitable components for performing the methods and techniques described herein can be downloaded and / or otherwise obtained by the user terminal and / or base station. For example, such a device can be coupled to a server to facilitate the transfer of components for performing the methods described herein. Optionally, the various methods described herein can be provided via storage components (e.g., RAM, ROM, physical storage media such as CDs or floppy disks, etc.) so that the user terminal and / or base station can obtain the various methods when the storage components are coupled to or provided to the device. Additionally, any other suitable techniques for providing the methods and techniques described herein to the device can be utilized.

[0143] It should be understood that these claims are not limited to the precise configuration and components described above. Various modifications, alterations, and variations may be made to the arrangement, operation, and details of the methods and apparatus described above without departing from the scope of the claims.

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: Receive an uplink cancellation indication (ULCI) indicating that the UE will modify one or more uplink transmission resources thereon; as well as The ULCI is processed according to a first set of one or more parameters associated with ULCI processing specific to the first type of UE. The first group of the one or more parameters includes at least one timing parameter that defines the time span for which the uplink resources of the ULCI can be applied. The time span includes one or more uplink bursts that are continuous or discontinuous in time, wherein each uplink burst includes multiple uplink symbols or time slots within a frame for time division duplex (TDD), full-duplex frequency division duplex (FD-FDD), and half-duplex frequency division duplex (HD-FDD) operations.

2. The method according to claim 1, wherein: The first type of UE includes a reduced RedCap UE with the ability to support a minimum processing time greater than that supported by the second type of UE.

3. The method according to claim 1, wherein, The first group of the one or more parameters includes at least one timing parameter that defines the window in which the ULCI is applied.

4. The method according to claim 3, wherein, The timing parameters indicate that the window in which the ULCI is applied begins in multiple time slots after the physical downlink control channel (PDCCH) carrying downlink control information (DCI) for transmitting the ULCI ends.

5. The method according to claim 3, wherein, The timing parameter is indicated by at least one of the following: System information SI specifically for the first type of UE; Radio resource control (RRC) signaling for semi-static configuration of the first type of UE; Control element (CE) in the Media Access Control (MAC) layer; or RRC configuration information for the active uplink bandwidth portion of the UL BWP for the first type of UE.

6. The method according to claim 3, wherein, The timing parameters are transmitted via a subfield that transmits the downlink control information of the ULCI.

7. The method according to claim 3, wherein, The timing parameters are determined by a combination of a lookup table and UE capability signaling.

8. The method according to claim 1, wherein, The time span is determined based on the starting time slot or symbol and the length of the time slot or symbol.

9. The method according to claim 8, wherein, The starting time slot or symbol is encoded in the start and length indicator vector SLIV and only uplink resources are considered.

10. The method according to claim 1, wherein, The time span is sequentially divided into multiple groups of UL slots or symbol sets, where each group includes the same number of uplink slots or symbols.

11. The method according to claim 1, wherein, Processing the ULCI includes applying the ULCI to at least one of the following: a random access message msgA transmitted via a Physical Uplink Control Channel (PUCCH), a Physical Random Access Channel (PRACH), or a two-step RACH.

12. The method according to claim 11, wherein, If one or more conditions are met, the ULCI is applied to the PUCCH or PRACH transmission.

13. The method according to claim 12, wherein, The one or more conditions include: The PUCCH only carries Channel State Information (CSI) reports.

14. The method according to claim 12, wherein, The one or more conditions include: The PRACH is transmitted when the UE is in a Radio Resource Control (RRC) connection state for a 4-step RACH or 2-step RACH procedure.

15. The method according to claim 1, further comprising: Receive signaling indicating the application of the priority of the ULCI.

16. The method according to claim 15, wherein, The signaling includes at least one of the following: The explicit indications in the ULCI, the implicit indications mapped by the Radio Network Temporary Identifier (RNTI), the Common Search Space (CSS) configuration, or the demodulation reference signal (DMRS) scrambling.

17. A method for wireless communication by a network entity, comprising: A ULCI is sent to the UE based on a first set of one or more parameters associated with an uplink cancellation indication ULCI specific to a first type of user equipment (UE), the ULCI indicating that the UE will modify one or more uplink transmission resources thereon; and One or more modified uplink transmissions are processed according to the ULCI. The first group of the one or more parameters includes at least one timing parameter that defines the time span for which the uplink resources of the ULCI can be applied. The time span includes continuous and discontinuous uplink symbols or time slots within a frame for Time Division Duplex (TDD), Full Duplex Frequency Division Duplex (FD-FDD), and Half Duplex Frequency Division Duplex (HD-FDD) operations.

18. The method of claim 17, wherein: The first type of UE includes a reduced RedCap UE with the ability to support a minimum processing time greater than that supported by the second type of UE.

19. The method according to claim 17, wherein, The first group of the one or more parameters includes at least one timing parameter that defines the window in which the ULCI is applied.

20. The method according to claim 19, wherein, The timing parameters indicate that the window in which the ULCI is applied begins in multiple time slots after the physical downlink control channel (PDCCH) carrying downlink control information (DCI) for transmitting the ULCI ends.

21. The method according to claim 19, wherein, The timing parameter is indicated by at least one of the following: System information SI specifically for the first type of UE; Radio resource control (RRC) signaling for semi-static configuration of the first type of UE; RRC configuration information for the active uplink bandwidth portion of the UL BWP for the first type of UE.

22. The method according to claim 19, wherein, The timing parameters are transmitted via a subfield that transmits the downlink control information of the ULCI.

23. The method according to claim 19, wherein, The timing parameters are based on a combination of lookup tables and UE capability signaling.

24. The method of claim 17, wherein, The time span is determined based on the starting time slot or symbol and the length of the time slot or symbol.

25. The method according to claim 24, wherein, The starting time slot or symbol is encoded in the start and length indicator vector SLIV and only uplink resources are considered.

26. The method according to claim 17, wherein, The time span is sequentially divided into multiple groups of UL slots or symbol sets, where each group includes the same number of uplink slots or symbols.

27. The method according to claim 17, wherein, Processing the ULCI includes applying the ULCI to at least one of the following: Physical Uplink Control Channel (PUCCH) or Physical Random Access Channel (PRACH) transmissions.

28. The method according to claim 27, wherein, If one or more conditions are met, the ULCI is applied to the PUCCH or PRACH transmission.

29. The method according to claim 28, wherein, The one or more conditions include: The PUCCH only carries Channel State Information (CSI) reports.

30. The method according to claim 28, wherein, The one or more conditions include: The PRACH is transmitted when the UE is in a Radio Resource Control (RRC) connection state for a 4-step RACH or 2-step RACH procedure.

31. The method of claim 17, further comprising: Send an indication of the priority of applying the ULCI.

32. The method according to claim 31, wherein, The instruction includes at least one of the following: The explicit indications in the ULCI, the implicit indications mapped by the Radio Network Temporary Identifier (RNTI), the Common Search Space (CSS) configuration, or the demodulation reference signal (DMRS) scrambling.

33. A user equipment (UE) comprising components for performing the method according to any one of claims 1-16.

34. A network entity comprising components for performing the method according to any one of claims 17-32.

35. A computer-readable medium having program code recorded thereon, wherein the program code is executable by one or more processors to cause a user equipment (UE) to perform the method according to any one of claims 1-16.

36. A computer-readable medium having program code recorded thereon, wherein the program code is executable by one or more processors to cause a network entity to perform the method according to any one of claims 17-32.

37. A computer program product comprising computer-readable instructions, wherein, When executed by a processor, the computer-readable instructions cause the user equipment (UE) to perform the method according to any one of claims 1-16.

38. A computer program product comprising computer-readable instructions, wherein, When executed by a processor, the computer-readable instructions cause the network entity to perform the method according to any one of claims 17-32.

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