Uplink collision handling
The UE identifies and cancels low-priority uplink transmissions based on processing capabilities to handle uplink collisions, enhancing network efficiency and reducing interference by prioritizing high-priority communications.
Patent Information
- Application Number
- JP2025117070
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2021-02-11
- Filing Date
- 2025-07-11
- Publication Date
- 2025-11-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In wireless communication systems, collisions between uplink transmissions of different priorities are not efficiently handled, leading to potential interference and inefficiencies in resource utilization.
A user equipment (UE) identifies collisions between high-priority and low-priority uplink transmissions and cancels the low-priority transmission based on a threshold delay period determined by UE processing capabilities and minimum processing timeline capabilities, ensuring the low-priority transmission is canceled before the first overlapping symbol of the high-priority transmission.
This approach reduces network interference and optimizes resource allocation by prioritizing high-priority transmissions, maintaining synchronization between the UE and the base station, and minimizing network traffic.
Smart Images

Figure 2025165950000001_ABST
Abstract
Description
Priority claims
[0001] CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This patent application claims priority to U.S. Provisional Patent Application No. 62 / 976,235, filed February 13, 2020, entitled "UPLINK COLLISION HANDLING," and U.S. Non-Provisional Patent Application No. 17 / 174,017, filed February 11, 2021, entitled "UPLINK COLLISION HANDLING," which are expressly incorporated herein by reference. [Technical Field]
[0002] Aspects of the present disclosure relate generally to wireless communications and to techniques and apparatus for uplink collision handling. [Background technology]
[0003] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). 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 a set of extensions to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the 3rd Generation Partnership Project (3GPP).
[0004] A wireless network may include several base stations (BSs) that can support communication for several user equipments (UEs). The UEs may communicate with the BSs via a downlink and an uplink. The downlink (or forward link) refers to the communication link from the BS to the UE, and the uplink (or reverse link) refers to the communication link from the UE to the BS. As described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit / receive point (TRP), new radio (NR) BS, 5G Node B, etc.
[0005]
[0005] The above multiple access technologies have been adopted in various telecommunications standards to provide common protocols that enable different user equipment to communicate on a city, national, regional, or even global scale. NR, sometimes referred to as 5G, is a set of extensions to the LTE mobile standard promulgated by 3GPP. NR is designed to improve spectral efficiency, lower costs, improve service, utilize new spectrum, and better support mobile broadband Internet access by using orthogonal frequency division multiplexing (OFDM) with cyclic prefix (CP-OFDM) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), better integrating with other open standards, as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As demand for mobile broadband access grows, further developments in LTE, NR, and other radio access technologies remain useful. Summary of the Invention
[0006]
[0006] In some aspects, a method of wireless communication performed by a user equipment (UE) may include identifying a collision between a first uplink transmission and a second uplink transmission, where the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; and canceling the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0007] In some aspects, a UE for wireless communication may include a memory and one or more processors operably coupled to the memory. The memory and the one or more processors may be configured to: identify a collision between a first uplink transmission and a second uplink transmission, where the first uplink transmission is a high-priority uplink transmission and the second uplink transmission is a low-priority uplink transmission; and cancel the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0008] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communications. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to: identify a collision between a first uplink transmission and a second uplink transmission, where the first uplink transmission is a high-priority uplink transmission and the second uplink transmission is a low-priority uplink transmission; and cancel the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0009]
[0009] In some aspects, an apparatus for wireless communication may include means for identifying a collision between a first uplink transmission and a second uplink transmission, where the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; and means for canceling the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on device processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0010]
[0010] Aspects generally include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems substantially as described in this specification with reference to the drawings and specification, and as illustrated by the accompanying drawings and specification.
[0011] The foregoing has outlined rather broadly the features and technical advantages of examples according to the present disclosure in order that the following detailed description may be better understood. Additional features and advantages are described below. The concepts and examples disclosed may be readily utilized as a basis for modifying or designing other structures for carrying out the same purposes of the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. The nature of the concepts disclosed herein, both their organization and method of operation, together with associated advantages, will be better understood from the following description when considered in conjunction with the accompanying figures. Each of the figures is provided for the purpose of illustration and description, and not as a definition of the limits of the claims.
[0012]
[0012] So that the above-described features of the present disclosure may be understood in detail, a more particular description briefly summarized above may be had by reference to embodiments, some of which are illustrated in the accompanying drawings. It should be noted, however, that the description may lead to other equally effective embodiments, and therefore, the accompanying drawings illustrate only some typical embodiments of the present disclosure and should not be considered as limiting the scope of the present disclosure. The same reference numerals in different drawings may identify the same or similar elements. [Brief explanation of the drawings]
[0013] [Figure 1]
[0013] FIG. 1 illustrates an example of a wireless network according to the present disclosure. [Figure 2]
[0014] 1 illustrates an example of a base station in communication with a UE in a wireless network according to the present disclosure. [Figure 3]
[0015] FIG. 1 illustrates an example of uplink collision handling in accordance with the present disclosure. [Figure 4]
[0016] FIG. 1 illustrates an example relating to uplink collision handling in accordance with the present disclosure. [Figure 5]
[0017] 1 illustrates an exemplary apparatus according to the present disclosure. DETAILED DESCRIPTION OF THE INVENTION
[0014]
[0018] Various aspects of the present disclosure are described more fully below with reference to the accompanying drawings. However, the present disclosure may be embodied in many different forms and should not be construed as limited to any specific structure or function presented throughout this disclosure. Instead, these aspects are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art. Based on the teachings herein, those skilled in the art will appreciate that the scope of the present disclosure encompasses any aspect of the present disclosure disclosed herein, whether implemented independently or in combination with any other aspect of the present disclosure. For example, an apparatus may be implemented or a method may be practiced using any number of the aspects described herein. Additionally, the scope of the present disclosure encompasses an apparatus or method practiced using other structure, function, or structure and function in addition to or other than the various aspects of the present disclosure described herein. It should be understood that any aspect of the disclosure disclosed herein may be embodied by one or more elements of a claim.
[0015]
[0019] Several aspects of telecommunications systems are presented next with reference to various apparatus and techniques. These apparatus and techniques are described in the detailed description that follows and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the particular application and design constraints imposed on the overall system.
[0016]
[0020] Although aspects may be described herein using terminology commonly associated with 5G or NR radio access technologies (RATs), it should be noted that aspects of the present disclosure may be applied to other RATs, such as 3G RATs, 4G RATs, and / or RATs subsequent to 5G (e.g., 6G).
[0017]
[0021] FIG. 1 illustrates an example wireless network 100 according to the present disclosure. Wireless network 100 may be or include elements of a 5G (NR) network and / or an LTE network, among other examples. Wireless network 100 may include several base stations 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A base station (BS) is an entity that communicates with user equipment (UE) and may also be referred to as an NR BS, Node B, gNB, 5G Node B (NB), access point, transmit / receive point (TRP), etc. Each BS may provide communication coverage for a particular geographic area. In 3GPP, the term “cell” can refer to the coverage area of a BS and / or a BS subsystem serving this coverage area, depending on the context in which the term is used.
[0018]
[0022] A BS may provide communication coverage for a macrocell, a picocell, a femtocell, and / or another type of cell. A macrocell may cover a relatively large geographic area (e.g., a few kilometers in radius) and may allow unrestricted access by UEs with service subscriptions. A picocell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscriptions. A femtocell may cover a relatively small geographic area (e.g., a home) and may allow restricted access by UEs that have an association with the femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS for a macrocell may be referred to as a macro BS. A BS for a picocell may be referred to as a pico BS. A BS for a femtocell may be referred to as a femto BS or a home BS. 1, BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or multiple (e.g., three) cells. The terms “eNB,” “base station,” “NR BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” may be used interchangeably herein.
[0019]
[0023] In some aspects, the cells may not necessarily be fixed, and the geographic area of the cell may move according to the location of the mobile BS. In some aspects, the BSs may be interconnected to each other and / or to one or more other BSs or network nodes (not shown) in wireless network 100 through various types of backhaul interfaces, such as direct physical connections or virtual networks, using any suitable transport network.
[0020]
[0024] Wireless network 100 may also include relay stations. A relay station is an entity that can receive a data transmission from an upstream station (e.g., a BS or UE) and send the data transmission to a downstream station (e.g., a UE or BS). A relay station may also be a UE that can relay transmissions for other UEs. In the example shown in FIG. 1, relay BS 110d may communicate with macro BS 110a and UE 120d to enable communication between BS 110a and UE 120d. A relay BS may also be referred to as a relay station, a relay base station, a relay, etc.
[0021]
[0025] Wireless network 100 may be a heterogeneous network including different types of BSs, such as 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 impacts on interference in wireless network 100. For example, macro BSs may have high transmit power levels (e.g., 5-40 watts), while pico BSs, femto BSs, and relay BSs may have lower transmit power levels (e.g., 0.1-2 watts).
[0022]
[0026] Network controller 130 may couple to a set of BSs and may provide coordination and control for these BSs. Network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via wireless or wireline backhaul.
[0023]
[0027] The UEs 120 (e.g., 120a, 120b, 120c) may be dispersed throughout the wireless network 100, and each UE may be fixed or mobile. A UE may also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. A UE may be a cellular phone (e.g., a smartphone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or equipment, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), an entertainment device (e.g., a music or video device, or satellite radio), a vehicle component or sensor, a smart meter / sensor, industrial manufacturing equipment, a global positioning system device, or any other suitable device configured to communicate over a wireless or wired medium.
[0024]
[0028] Some UEs may be considered machine type communication (MTC) UEs or evolved or enhanced machine type communication (eMTC) UEs. MTC UEs and eMTC UEs include, for example, a robot, a drone, a remote device, a sensor, a meter, a monitor, and / or a location tag that may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide connectivity for or to a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered Internet of Things (IoT) devices and / or implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs may be considered Customer Premises Equipment (CPE). The UE 120 may be included within a housing that houses components of the UE 120, such as a processor component and / or a memory component. In some aspects, the processor component and the memory component may be coupled together. For example, a processor component (e.g., one or more processors) and a memory component (e.g., memory) may be operatively coupled, communicatively coupled, electronically coupled, and / or electrically coupled.
[0025]
[0029] Generally, any number of wireless networks may be deployed in a given geographic area. Each wireless network may support a particular RAT and may 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 may support a single RAT within a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks may be deployed.
[0026]
[0030] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly (e.g., without using a base station 110 as an intermediary for communicating with each other) using one or more sidelink channels. For example, the UEs 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, a vehicle-to-everything (V2X) protocol (which may include, e.g., a vehicle-to-vehicle (V2V) protocol or a vehicle-to-infrastructure (V2I) protocol), and / or a mesh network. In this case, the UEs 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by the base station 110.
[0027]
[0031] Devices of wireless network 100 may communicate using an electromagnetic spectrum, which may be subdivided into various classes, bands, channels, etc. based on frequency or wavelength. For example, devices of wireless network 100 may communicate using an operating band having a first frequency range (FR1), which may range from 410 MHz to 7.125 GHz, and / or an operating band having a second frequency range (FR2), which may range from 24.25 GHz to 52.6 GHz. Frequencies between FR1 and FR2 are sometimes referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often referred to as the "sub-6 GHz" band. Similarly, FR2 is often referred to as "millimeter wave" even though it is different from the extra-high frequency (EHF) band (30 GHz to 300 GHz), which is identified as the "millimeter wave" band by the International Telecommunications Union (ITU). Thus, unless otherwise specified, it should be understood that terms such as "sub-6 GHz," as used herein, may broadly refer to frequencies below 6 GHz, frequencies within FR1, and / or mid-band frequencies (e.g., greater than 7.125 GHz). Similarly, unless otherwise specified, it should be understood that terms such as "millimeter wave," as used herein, may broadly refer to frequencies within the EHF band, frequencies within FR2, and / or mid-band frequencies (e.g., less than 24.25 GHz). It is contemplated that the frequencies included within FR1 and FR2 may be modified, and that the techniques described herein are applicable to those modified frequency bands.
[0028]
[0032] As noted above, Figure 1 is provided as an example. Other examples may differ from those described with respect to Figure 1.
[0029]
[0033] 2 is a diagram illustrating an example base station 200 in communication with a UE 120 in a wireless network 100 in accordance with the present disclosure. The base station 110 may be equipped with T antennas 234a through 234t, and the UE 120 may be equipped with R antennas 252a through 252r, where in general, T≧1 and R≧1.
[0030]
[0034] At base station 110, transmit processor 220 may receive data from data source 212 for one or more UEs, select one or more modulation and coding schemes (MCSs) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for each UE based at least in part on the MCS selected for that UE, and provide data symbols for all UEs. Transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI)) and control information (e.g., CQI requests, grants, and / or higher layer signaling) and provide overhead and control symbols. Transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS) or demodulation reference signals (DMRS)) and synchronization signals (e.g., primary synchronization signals (PSS) or secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on the data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MODs) 232a through 232t. Each modulator 232 may process a respective output symbol stream (e.g., for OFDM) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and upconvert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a through 232t may be transmitted via T antennas 234a through 234t, respectively.
[0031]
[0035] At the UE 120, antennas 252a through 252r may receive downlink signals from the base station 110 and / or other base stations and may provide received signals to demodulators (DEMODs) 254a through 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM) to obtain received symbols. A MIMO detector 256 may obtain received symbols from all R demodulators 254a through 254r, perform MIMO detection on the received symbols if applicable, and provide detected symbols. A receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for the UE 120 to a data sink 260, and provide decoded control and system information to a controller / processor 280. The term “controller / processor” may refer to one or more controllers, one or more processors, or a combination thereof. The channel processor may determine a reference signal received power (RSRP) parameter, a received signal strength indicator (RSSI) parameter, a reference signal received quality (RSRQ) parameter, and / or a channel quality indicator (CQI) parameter, among other examples. In some aspects, one or more components of the UE 120 may be included in the housing 284.
[0032]
[0036] The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292. The network controller 130 may include one or more devices in a core network, for example. The network controller 130 may communicate with the base station 110 via the communication unit 294.
[0033]
[0037] Antennas (e.g., antennas 234a-234t and / or antennas 252a-252r) may include or be contained within one or more antenna panels, antenna groups, sets of antenna elements, and / or antenna arrays, among other examples. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include one or more antenna elements. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include a set of coplanar antenna elements and / or a set of non-coplanar antenna elements. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include antenna elements within a single housing and / or antenna elements within multiple housings. An antenna panel, antenna group, set of antenna elements, and / or antenna array may include one or more antenna elements coupled to one or more transmitting and / or receiving components, such as one or more components of FIG. 2.
[0034]
[0038] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, and / or CQI). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266, further processed by modulators 254a-254r (e.g., for DFT-s-OFDM or CP-OFDM), and transmitted to the base station 110. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 254) of the UE 120 may be included in a modem of the UE 120. In some aspects, the UE 120 includes a transceiver. The transceiver may include any combination of antennas 252, modulators and / or demodulators 254, MIMO detectors 256, receive processors 258, transmit processors 264, and / or TX MIMO processors 266. The transceiver may be used by a processor (e.g., controller / processor 280) and memory 282 to implement aspects of any of the methods described herein, for example, as described with reference to FIGS.
[0035]
[0039] At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by a demodulator 232, detected by a MIMO detector 236, if applicable, and further processed by a receive processor 238 to obtain decoded data and control information sent by the UE 120. The receive processor 238 may provide the decoded data to a data sink 239 and the decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and may communicate with the network controller 130 via the communication unit 244. The base station 110 may include a scheduler 246 to schedule the UE 120 for downlink and / or uplink communication. In some aspects, the modulator and demodulator (e.g., MOD / DEMOD 232) of the base station 110 may be included in a modem of the base station 110. In some aspects, the base station 110 includes a transceiver. The transceiver may include any combination of antennas 234, modulators and / or demodulators 232, MIMO detectors 236, receive processors 238, transmit processors 220, and / or TX MIMO processors 230. The transceiver may be used by a processor (e.g., controller / processor 240) and memory 242 to implement aspects of any of the methods described herein, for example, as described with reference to FIGS.
[0036]
[0040] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components of FIG. 2 may perform one or more techniques related to uplink collision handling, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or any other components of FIG. 2 may perform or direct the operation of, for example, process 400 of FIG. 4 and / or other processes described herein. The memories 242 and 282 may store data and program codes for the base station 110 and the UE 120, respectively. In some aspects, the memory 242 and / or the memory 282 may include a non-transitory computer-readable medium having stored thereon one or more instructions (e.g., code and / or program code) for wireless communication. For example, the one or more instructions, when executed by one or more processors of the base station 110 and / or the UE 120 (e.g., directly or after being compiled, translated, and / or interpreted), may cause the one or more processors, the UE 120, and / or the base station 110 to perform or direct operations of, for example, process 400 of FIG. 4 and / or other processes described herein. In some aspects, executing the instructions may include executing the instructions, translating the instructions, compiling the instructions, and / or interpreting the instructions, among other examples.
[0037]
[0041] In some aspects, a user equipment (UE) includes means for identifying a collision between a first uplink transmission and a second uplink transmission, where the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; or means for canceling the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission. The means for the user equipment (UE) to perform the operations described herein may include, for example, one or more of antenna 252, demodulator 254, MIMO detector 256, receive processor 258, transmit processor 264, TX MIMO processor 266, modulator 254, controller / processor 280, or memory 282.
[0038]
[0042] 2 are shown as separate components, the functionality described above with respect to those blocks may be implemented in a single hardware, software, or combined component, or various combinations of components. For example, functionality described with respect to transmit processor 264, receive processor 258, and / or TX MIMO processor 266 may be performed by or under the control of controller / processor 280.
[0039]
[0043] As noted above, Figure 2 is provided as an example. Other examples may differ from those described with respect to Figure 2.
[0040]
[0044] In some communication systems, different uplink channels may be associated with different priority levels. For example, a UE may receive a priority indication identifying a high-priority uplink channel, such as a high-priority physical uplink control channel (PUCCH), and a low-priority uplink channel, such as a low-priority physical uplink shared channel (PUSCH). The BS may use downlink control information (DCI) to convey a priority indication for a dynamically granted PUSCH, a PUCCH associated with a hybrid automatic repeat request (HARQ) acknowledgement message (ACK), etc. Similarly, the BS may use radio resource control (RRC) configuration information to convey a priority indication. Some uplink channels may be associated with a default priority, and the UE may use the default priority unless an explicit indicator is received to override the default priority. For example, periodic or semi-persistent channel state information (CSI) may be associated with low priority as a default condition. Similarly, periodic or semi-persistent sounding reference signal (SRS) may be associated with low priority as a default condition.
[0041]
[0045] When multiple uplink channels of different priorities collide in the time domain, the UE may not be able to multiplex the multiple uplink channels together for transmission. Similarly, the UE may not be able to transmit multiple uplink channels simultaneously. As a result, the UE may drop a low-priority channel to allow transmission of a high-priority channel. For example, the UE may drop a low-priority PUSCH to allow transmission of a high-priority PUCCH on the same or a different carrier. Similarly, the UE may drop a low-priority PUCCH to allow transmission of a high-priority PUCCH on the same carrier.
[0042]
[0046] When the UE identifies a collision between a high-priority channel and a low-priority channel (e.g., based on a received dynamic grant for the high-priority channel), the UE may suspend the low-priority channel and associated low-priority uplink transmissions based at least in part on a time defined by a specification. For example, the UE may cancel the low-priority channel based at least in part on a time represented by the following equation:
[0043]
number
[0044] where T drop represents the gap between the end of the control resource set (CORESET) or physical downlink control channel (PDCCH) that schedules the high priority channel and the first symbol of the high priority channel (and therefore the earliest time that a collision can occur) (or the maximum time after the PDCCH that a low priority channel is interrupted), and T proc,2 where d represents the UE processing capability for the carrier over which the low priority channel is carried, and d is a configurable value (e.g., 0 symbols, 1 symbol, 2 symbols, etc.) that the UE may report in the UE capability message. In this way, the UE and BS remain synchronized as to when the low priority channel should be suspended.
[0045]
[0047] In some cases, a UE may have multiple configured subcarriers or serving cells, each with a different subcarrier spacing and each with a different minimum processing timeline capability. The minimum processing timeline capability may be related to the type of channel. For example, a particular component carrier may have a first minimum processing timeline capability n1 for the physical downlink shared channel (PDSCH) and a second minimum processing timeline capability n2 for the PUSCH. The UE processing capability T proc,2is for the PUSCH and is based at least in part on n2. However, in multi-carrier deployments, the UE may be configured with a different n2 value for calculating the UE processing capability.
[0046]
[0048] Some aspects described herein enable early uplink collision handling. For example, a UE may determine a time delay for canceling an uplink transmission based at least in part on the UE processing capability and minimum processing timeline capability. In this case, after the time delay, the UE may, for example, cancel a low-priority uplink transmission in order to prioritize a high-priority uplink transmission. In this manner, the BS remains synchronized with the UE based at least in part on enabling the UE to deterministically calculate a time delay based at least in part on the UE processing capability and minimum processing timeline capability. Furthermore, based at least in part on enabling the cancellation of low-priority uplink transmissions, the UE may reduce network traffic, reduce the likelihood of interference, etc.
[0047]
[0049] 3 illustrates an example uplink collision handling 300 according to the present disclosure. As shown in FIG. 3, the example 300 includes a BS 110 and a UE 120.
[0048]
[0050] As further indicated by reference numeral 310 in FIG. 3, the UE 120 may detect a collision between a first uplink transmission and a second uplink transmission. For example, the UE 120 may receive signaling from the BS 110 scheduling a high-priority uplink transmission that collides with a low-priority uplink transmission. In this case, the high-priority uplink transmission and the low-priority uplink transmission may overlap (e.g., in the time domain, the frequency domain, etc.) with respect to scheduled resources. In some aspects, the UE 120 may receive signaling identifying a priority for the uplink transmission. For example, the UE 120 may receive downlink control information (DCI) indicating a priority for a dynamically granted physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH) carrying a hybrid automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) message, etc. Additionally or alternatively, the UE 120 may receive radio resource control (RRC) signaling that identifies priorities for configured grants PUSCH, scheduling requests, etc. In some aspects, the UE 120 may determine the priorities based at least in part on stored default settings. For example, the UE 120 may determine that a periodic or semi-persistent channel state information (CSI) reference signal (RS) or a periodic or semi-persistent sounding reference signal (SRS) has low priority.
[0049]
[0051] As further indicated by reference numeral 320 in FIG. 3 , UE 120 may cancel a low-priority uplink transmission based at least in part on a threshold delay period. The threshold delay period may identify the length of time between a triggering event for a high-priority uplink transmission (e.g., a physical downlink control channel or control resource set scheduling the high-priority uplink transmission) and the first symbol of the high-priority uplink transmission (which may collide with a low-priority uplink transmission). For example, UE 120 may cancel a low-priority uplink transmission before the first colliding symbol of the high-priority uplink transmission, which may occur at or after the threshold delay period. In this manner, UE 120 prioritizes a high-priority uplink transmission that collide with a low-priority uplink transmission. In some aspects, UE 120 may determine the threshold delay period to determine when to cancel a low-priority uplink transmission to remain synchronized with BS 110. For example, UE 120 may set the threshold delay period to T drop =T proc,2 +d1. In this case, the UE processing capacity T proc,2 may be based at least in part on the minimum processing timeline capability n2, as described above.
[0050]
[0052] In some aspects, the UE 120 may use the UE processing capability T proc,2For example, the UE 120 may determine the UE processing capability based at least in part on the uplink subcarrier spacing of a carrier on which a low priority uplink transmission is carried. In this case, the UE 120 may determine the minimum processing timeline capability based at least in part on the uplink timing capability configured for the channel on which the low priority uplink transmission is carried. In other words, when the low priority uplink transmission is a PUSCH communication on a particular subcarrier, the UE 120 may determine the UE processing capability based at least in part on the uplink subcarrier spacing of the particular carrier and may determine the minimum processing timeline capability based at least in part on the uplink timing capability for the PUSCH communication on the particular carrier. As a result, for example, when the UE 120 suspends multiple low priority PUSCH communications on multiple carriers, the UE 120 may suspend different low priority PUSCH communications in different symbols based at least in part on the respective subcarrier spacing and uplink timing capabilities.
[0051]
[0053] Additionally or alternatively, the UE 120 may determine the UE processing capability based at least in part on a minimum subcarrier spacing. For example, the UE 120 may determine the subcarrier spacing for calculating the UE processing capability based at least in part on a minimum subcarrier spacing between a downlink carrier on which a high-priority downlink transmission (e.g., a PDCCH) triggers a high-priority uplink transmission (e.g., a PUCCH) and an uplink carrier on which a low-priority uplink communication is carried. In this case, the UE 120 may determine the minimum processing timeline capability based at least in part on the uplink timing capability of the channel of the uplink carrier on which the low-priority uplink communication is carried. Additionally or alternatively, the UE 120 may determine the minimum processing timeline capability based at least in part on a PDSCH processing timeline capability for a PDSCH associated with a high-priority uplink transmission (e.g., a high-priority PUCCH).
[0052]
[0054] Additionally or alternatively, the UE 120 may determine a set of UE processing capabilities for a set of carriers on which a set of low-priority uplink transmissions are conveyed (e.g., based at least in part on the uplink subcarrier spacing of the set of carriers). In this case, the UE 120 may determine the UE processing capabilities based at least in part on a maximum value in the set of UE processing capabilities. In some aspects, to determine the set of UE processing capabilities, the UE 120 may use a minimum subcarrier spacing of a set of subcarrier spacings for a high-priority downlink transmission that triggers a high-priority uplink transmission and a low-priority channel of an uplink carrier on which a low-priority uplink transmission is conveyed. In some aspects, the UE 120 may determine the UE processing capabilities of the high-priority channels and the UE processing capabilities of the low-priority channels (e.g., the maximum value of a set of low-priority channel UE processing capabilities) as described herein, and may, for example, select a maximum value between the UE processing capabilities of the high-priority channels and the UE processing capabilities of the low-priority channels. Additionally or alternatively, UE 120 may determine a minimum subcarrier spacing between high priority channels and determine UE processing capability based at least in part on the minimum processing capability.
[0053]
[0055] Additionally or alternatively, UE 120 may determine subcarrier spacing for the UE processing capability based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings. In this case, the set of subcarrier spacings may include subcarrier spacing of a low-priority channel associated with a carrier on which a low-priority uplink transmission is carried, subcarrier spacing of a high-priority PDCCH that triggers a high-priority uplink transmission, PUCCH subcarrier spacing, subcarrier spacing of a high-priority uplink transmission, subcarrier spacing of a low-priority PDCCH that triggers a low-priority uplink transmission, etc. Furthermore, UE 120 may determine a minimum processing timeline capability based at least in part on a configuration of one or more carriers. For example, when channels of a set of channels (e.g., all configured channels, a low-priority channel, a PDSCH associated with a PUCCH, etc.) are configured with a specific capability for n2 related to the determined subcarrier spacing described above, UE 120 may use the specific capability for n2. Otherwise, UE 120 may select a different capability n2 to determine the minimum processing timeline capability and the associated UE processing capability. More specifically, if one carrier among all configured carriers, or among only carriers with low priority channels to be canceled, or among carriers with high priority grants (for high priority uplink transmissions) and low priority channels to be canceled, is configured with Cap#2 (for either n2 on the uplink or n1 on the downlink), UE 120 may determine T based at least in part on the subcarrier spacing cap#2 n2 from the first step (e.g., the minimum subcarrier spacing of the set of subcarrier spacings). proc,2 Otherwise, UE 120 may calculate T based on the subcarrier spacing cap #1 n2 from the first step. proc,2The minimum processing timeline capability may be calculated based on one or more timing capabilities of a set of carriers associated with the first uplink transmission and the second uplink transmission. The set of carriers may include carriers carrying one or more of the PDCCH, PDSCH, PUSCH, or PUCCH described above. The one or more timing capabilities may include cap#1 n2, cap#2 n2, cap#1 n1, and / or cap#2 n1 described above.
[0054]
[0056] Furthermore, the determination of the minimum processing timeline capability may be based at least in part on the settings of the uplink processing capability (e.g., n2) and the downlink processing capability (e.g., n1). For example, the uplink processing capability may be the processing capability time for the PUSCH (e.g., a high-priority uplink transmission), and the downlink processing capability may be the processing capability for the PDSCH (e.g., associated with a low-priority uplink transmission).
[0055]
[0057] In some aspects, UE 120 may report capabilities for intra-UE prioritization and may have overlapping PUCCH and / or PUSCH transmissions with common prioritization. For example, UE 120 may transmit a first PUCCH with a higher priority index conveying a scheduling request and a second PUCCH with a lower priority index, resulting in the first and second PUCCHs overlapping in time. In this case, UE 120 may cancel the second PUCCH starting by the first overlapping symbol. Additionally or alternatively, UE 120 may transmit a first PUCCH with a higher priority index or a PUSCH with a higher priority index scheduled by the PDCCH and a second PUCCH with a lower priority index to report HARQ-ACK feedback for a PDSCH scheduled by the PDCCH. In this case, UE 120 may cancel the second PUCCH up to a threshold amount of symbols after the end of the last symbol of the PDCCH indicating the first PUCCH transmission or PUSCH transmission.
[0056]
[0058] In some aspects, UE 120 may determine UE processing capability based at least in part on uplink or downlink capabilities. For example, UE 120 may distinguish between downlink and uplink processing capabilities. In this case, if either processing capability is a specific capability for n2 associated with a particular carrier, UE 120 may determine UE processing capability based at least in part on the specific capability for n2.
[0057]
[0059] As noted above, Figure 3 is provided as an example. Other examples may differ from those described with respect to Figure 3.
[0058]
[0060] 4 illustrates an example process 400 performed, for example, by a UE, in accordance with the present disclosure. The example process 400 is an example in which a UE (such as, for example, UE 120) performs operations related to uplink collision handling.
[0059]
[0061] 4, in some aspects, process 400 may include identifying a collision between a first uplink transmission and a second uplink transmission, where the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission (block 410). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may identify a collision between the first uplink transmission and the second uplink transmission as described above. In some aspects, the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission.
[0060]
[0062] 4, in some aspects, process 400 may include canceling the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before the first overlapping symbol of the first uplink transmission and the second uplink transmission (block 420). For example, the UE (e.g., using receive processor 258, transmit processor 264, controller / processor 280, memory 282, etc.) may cancel the second uplink transmission based at least in part on the threshold delay period, as described above. In some aspects, the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before the first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0061]
[0063] Process 400 may include additional aspects, such as any single aspect or any combination of aspects, described below and / or in connection with one or more other processes described elsewhere herein.
[0062]
[0064] In a first aspect, the UE processing capability is based at least in part on an uplink subcarrier spacing of a carrier carrying the second uplink transmission.
[0063]
[0065] In a second aspect, alone or in combination with the first aspect, the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings of a set of carriers, the set of carriers including at least one of a first carrier over which a physical downlink control channel triggering the first uplink transmission is carried, a second carrier over which the second uplink transmission is carried, a third carrier over which the first uplink transmission is carried, or a fourth carrier over which a physical downlink control channel triggering the second uplink transmission is carried.
[0064]
[0066] In a third aspect, alone or in combination with one or more of the first and second aspects, the minimum processing timeline capability is an uplink shared channel processing capability (e.g., a PUSCH processing capability related to N2) and is based at least in part on one or more timing capabilities of a set of carriers associated with the first uplink transmission and the second uplink transmission.
[0065]
[0067] In a fourth aspect, alone or in combination with one or more of the first to third aspects, the UE processing capability is a minimum UE processing capability of a set of UE processing capabilities determined for a set of carriers over which the second uplink transmission is carried.
[0066]
[0068] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, the subcarrier spacing for the set of UE processing capabilities is a minimum subcarrier spacing of a set of subcarrier spacings of a set of channels, the set of channels including at least one of a first channel on which a physical downlink control channel that triggers the first uplink transmission is carried or a channel on which a second uplink transmission is carried.
[0067]
[0069] In a sixth aspect, alone or in combination with one or more of the first through fifth aspects, the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings for a set of channels, wherein the set of channels includes at least one of a first channel over which a physical downlink control channel that triggers the first uplink transmission is carried, a second channel over which the second uplink transmission is carried, a third channel over which a physical downlink control channel that triggers the second uplink transmission is carried, or a fourth channel over which the first uplink transmission is carried.
[0068]
[0070] In a seventh aspect, alone or in combination with one or more of the first through sixth aspects, the minimum timeline throughput is based at least in part on a selected set of carriers.
[0069]
[0071] In an eighth aspect, alone or in combination with one or more of the first through seventh aspects, the selected set of carriers includes at least one of all configured carriers, one or more carriers carrying a second uplink transmission, or one or more carriers associated with a high priority grant, and wherein the minimum timeline processing capacity is based at least in part on uplink processing capacity and downlink processing capacity settings associated with the selected set of carriers.
[0070]
[0072] In a ninth aspect, alone or in combination with one or more of the first through eighth aspects, the UE processing capability is based at least in part on at least one of a downlink processing capability or an uplink processing capability for a carrier associated with at least one of the first uplink transmission or the second uplink transmission.
[0071]
[0073] In a tenth aspect, alone or in combination with one or more of the first through ninth aspects, the UE processing capability is based at least in part on at least one of a first UE processing capability of a first channel or a second UE processing capability of a second channel.
[0072]
[0074] 4 illustrates example blocks of process 400, in some aspects process 400 may include additional blocks, fewer blocks, different blocks, or blocks configured differently than those illustrated in FIGURE 4. Additionally or alternatively, two or more of the blocks of process 400 may be performed in parallel.
[0073]
[0075] 5 is a block diagram of an example apparatus 500 for wireless communication. The apparatus 500 may be a UE, or the UE may include the apparatus 500. In some aspects, the apparatus 500 includes a receiving component 502 and a transmitting component 504, which may be in communication with each other (e.g., via one or more buses and / or one or more other components). As shown, the apparatus 500 may communicate with another apparatus 506 (such as a UE, a base station, or another wireless communication device) using the receiving component 502 and the transmitting component 504. As further shown, the apparatus 500 may include one or more of an identifying component 508 or a canceling component 510, among other examples.
[0074]
[0076] In some aspects, apparatus 500 may be configured to perform one or more operations described herein with respect to FIG. 3. Additionally or alternatively, apparatus 500 may be configured to perform one or more processes described herein, such as process 400 of FIG. 4. In some aspects, apparatus 500 and / or one or more components illustrated in FIG. 5 may include one or more components of a UE described above with respect to FIG. 2. Additionally or alternatively, one or more components illustrated in FIG. 5 may be implemented within one or more components described above with respect to FIG. 2. Additionally or alternatively, one or more components of the set of components may be implemented at least in part as software stored in memory. For example, a component (or a portion of a component) may be implemented as instructions or code stored on a non-transitory computer-readable medium and executable by a controller or processor to perform the function or operation of the component.
[0075]
[0077] The receiving component 502 may receive communications, such as reference signals, control information, data communications, or combinations thereof, from the device 506. The receiving component 502 may provide the received communications to one or more other components of the device 500. In some aspects, the receiving component 502 may perform signal processing on the received communications (such as filtering, amplification, demodulation, analog-to-digital conversion, demultiplexing, deinterleaving, demapping, equalization, interference cancellation, or decoding, among other examples) and provide the processed signals to one or more other components of the device 506. In some aspects, the receiving component 502 may include one or more antennas, a demodulator, a MIMO detector, a receive processor, a controller / processor, a memory, or a combination thereof, of a UE, as described above with respect to FIG.
[0076]
[0078] The transmitting component 504 may transmit a communication to the device 506, such as a reference signal, control information, a data communication, or a combination thereof. In some aspects, one or more other components of the device 506 may generate a communication and provide the generated communication to the transmitting component 504 for transmission to the device 506. In some aspects, the transmitting component 504 may perform signal processing on the generated communication (such as filtering, amplification, modulation, digital-to-analog conversion, multiplexing, interleaving, mapping, or encoding, among other examples) and transmit the processed signal to the device 506. In some aspects, the transmitting component 504 may include one or more antennas, a modulator, a transmit MIMO processor, a transmit processor, a controller / processor, a memory, or a combination thereof, of a UE described above with respect to FIG. 2. In some aspects, the transmitting component 504 may be co-located with the receiving component 502 in a transceiver.
[0077]
[0079] The identification component 508 may identify a collision between the first uplink transmission and the second uplink transmission, where the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission. The cancellation component 510 may cancel the second uplink transmission based at least in part on a threshold delay period, where the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and where the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0078]
[0080] The number and arrangement of components shown in Figure 5 are given as an example. In practice, there may be additional, fewer, different, or differently arranged components than those shown in Figure 5. Furthermore, two or more components shown in Figure 5 may be implemented within a single component, or a single component shown in Figure 5 may be implemented as multiple distributed components. Additionally or alternatively, a set of components shown in Figure 5 may perform one or more functions described as being performed by another set of components shown in Figure 5.
[0079]
[0081] The following provides a summary of some aspects of the disclosure.
[0080]
[0082] Aspect 1: A method of wireless communication performed by a user equipment (UE) comprises identifying a collision between a first uplink transmission and a second uplink transmission, wherein the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; and canceling the second uplink transmission based at least in part on a threshold delay period, wherein the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and wherein the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
[0081]
[0083] Aspect 2: The method of aspect 1, wherein the UE processing capability is based at least in part on an uplink subcarrier spacing of a carrier carrying the second uplink transmission.
[0082]
[0084] Aspect 3: The method of any of aspects 1 or 2, alone or in combination with the first aspect, wherein the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings of a set of carriers, where the set of carriers includes at least one of a first carrier on which a physical downlink control channel triggering the first uplink transmission is carried, a second carrier on which the second uplink transmission is carried, a third carrier on which the first uplink transmission is carried, or a fourth carrier on which a physical downlink control channel triggering the second uplink transmission is carried.
[0083]
[0085] Aspect 4: The method of any of aspects 1 to 3, wherein the minimum processing timeline capability is based at least in part on an uplink timing capability of a channel over which the second uplink transmission is carried.
[0084]
[0086] Aspect 5: The method of any of aspects 1 to 4, wherein the UE processing capability is a minimum UE processing capability of a set of UE processing capabilities determined for a set of carriers over which the second uplink transmission is carried.
[0085]
[0087] Aspect 6: The method described in aspect 5, wherein the subcarrier spacing for the set of UE processing capabilities is the minimum subcarrier spacing of a set of subcarrier spacings of a set of channels, wherein the set of channels includes at least one of a first channel on which a physical downlink control channel that triggers the first uplink transmission is carried, or a channel on which a second uplink transmission is carried.
[0086]
[0088] Aspect 7: A method as described in any of aspects 1 to 6, wherein the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings for a set of channels, wherein the set of channels includes a first channel on which a physical downlink control channel that triggers the first uplink transmission is carried, or a channel on which a second uplink transmission is carried.
[0087]
[0089] Aspect 8: The method of aspect 7, wherein the minimum timeline throughput is based at least in part on the amount of carriers in the selected set of carriers.
[0088]
[0090] Aspect 9: The method of aspect 8, wherein the selected set of carriers includes at least one of all configured carriers, one or more carriers carrying a second uplink transmission, or one or more carriers associated with a high priority grant.
[0089]
[0091] Aspect 10: The method of any of aspects 1 to 9, wherein the UE processing capability is based at least in part on at least one of a downlink processing capability or an uplink processing capability for a carrier associated with at least one of the first uplink transmission or the second uplink transmission.
[0090]
[0092] Aspect 11: The method of aspect 10, wherein the UE processing capability is based at least in part on at least one of a first UE processing capability of the first channel or a second UE processing capability of the second channel.
[0091]
[0093] Aspect 12: An apparatus for wireless communication in a device, the apparatus comprising: a processor; a memory coupled to the processor; and instructions stored in the memory, the instructions being executable by the processor to cause the apparatus to perform a method described in one or more of aspects 1 to 11.
[0092]
[0094] Aspect 13: A device for wireless communication, comprising: a memory; and one or more processors coupled to the memory, wherein the memory and the one or more processors are configured to execute a method described in one or more of aspects 1 to 11.
[0093]
[0095] Aspect 14: An apparatus for wireless communication, the apparatus comprising at least one means for performing a method according to one or more aspects of aspects 1-11.
[0094]
[0096] Aspect 15: A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable by a processor to perform a method described in one or more of aspects 1-11.
[0095]
[0097] Aspect 16: A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising one or more instructions that, when executed by one or more processors of a device, cause the device to perform a method described in one or more of Aspects 1-11.
[0096]
[0098] The above disclosure provides illustration and description, and is not intended to be exhaustive or to limit the embodiments to the precise form disclosed. Modifications and variations may be made in light of the above disclosure or acquired from practice of the embodiments.
[0097]
[0099] The term "component" as used herein shall be broadly construed as hardware and / or a combination of hardware and software. "Software" shall be broadly construed to mean, among other examples, instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, and / or functions, whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise. A processor, as used herein, is implemented in hardware and / or a combination of hardware and software. It will be apparent that the systems and / or methods described herein may be implemented in different forms of hardware and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not intended to be limiting. Thus, the operation and behavior of the systems and / or methods will be described herein without reference to specific software code, and it will be understood that software and hardware may be designed to implement the systems and / or methods based at least in part on the description herein.
[0098]
[0100] As used herein, satisfying a threshold can refer to a value being 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., depending on the context.
[0099]
[0101] Although particular combinations of features are recited in the claims and / or disclosed herein, these combinations do not limit the disclosure of various aspects. Indeed, many of these features may be combined in ways not specifically recited in the claims and / or disclosed herein. While each dependent claim set forth below may depend directly on only one claim, the disclosure of various aspects includes each dependent claim in combination with every other claim in the range. As used herein, a phrase referring to "at least one of" a list of items refers to any combination of those items, including single members. As an example, "at least one of a, b, or c" is intended to include 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 order of a, b, and c).
[0100]
[0102] No element, act, or instruction used herein should be construed as critical or required unless explicitly described as such. Also, as used herein, the articles "a" and "an" include one or more items and may be used interchangeably with "one or more." Furthermore, as used herein, the article "the" is intended to include one or more items referenced in connection with the article "the" and may be used interchangeably with "one or more." Furthermore, as used herein, the terms "set" and "group" include one or more items (e.g., related items, unrelated items, or a combination of related and unrelated items) and may be used interchangeably with "one or more." Where only one item is intended, the phrase "only one" or similar language is used. Also, as used herein, terms such as "has," "have," and "having" are intended to be open-ended terms. Furthermore, the phrase "based on" is intended to mean "based at least in part on," unless expressly specified otherwise. Also, as used herein, the term "or" is intended to be inclusive when used consecutively and can be used interchangeably with "and / or" (e.g., when used in combination with "either" or "only one of") unless otherwise specified.
Claims
1. 1. A user equipment (UE) for wireless communications, comprising: Memory and one or more processors operably coupled to the memory, wherein the memory and the one or more processors: identifying a collision between a first uplink transmission and a second uplink transmission, wherein the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; canceling the second uplink transmission based at least in part on a threshold delay period; configured to: The threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
2. 10. The UE of claim 1, wherein the UE processing capability is based at least in part on an uplink subcarrier spacing of a carrier carrying the second uplink transmission.
3. the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings of a set of carriers; The set of carriers comprises: a first carrier on which a physical downlink control channel that triggers the first uplink transmission is carried; a second carrier on which the second uplink transmission is carried; a third carrier on which the first uplink transmission is carried; or a fourth carrier on which a physical downlink control channel that triggers the second uplink transmission is carried; The UE of claim 1 , comprising at least one of:
4. 2. The UE of claim 1, wherein the minimum processing timeline capability is an uplink shared channel processing capability and is based at least in part on one or more timing capabilities of a set of carriers associated with the first uplink transmission and the second uplink transmission.
5. 2. The UE of claim 1, wherein the UE processing capability is a minimum UE processing capability of a set of UE processing capabilities determined for a set of carriers over which the second uplink transmission is carried.
6. the subcarrier spacing for the set of UE processing capabilities is the minimum subcarrier spacing of a set of subcarrier spacings for a set of channels; The set of channels may be: a first channel on which a physical downlink control channel that triggers said first uplink transmission is carried; or a channel over which the second uplink transmission is carried; The UE of claim 5, comprising at least one of:
7. the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings for a set of channels; The set of channels may be: a first channel on which a physical downlink control channel that triggers the first uplink transmission is carried; a second channel over which the second uplink transmission is carried; a third channel on which a physical downlink control channel is carried that triggers the second uplink transmission; or a fourth channel over which the first uplink transmission is carried; The UE of claim 1 , comprising at least one of:
8. The UE of claim 7 , wherein the minimum timeline throughput is based at least in part on a selected set of carriers.
9. The selected set of carriers comprises: All configured carriers, one or more carriers carrying the second uplink transmission; or One or more carriers associated with high priority grants and The UE of claim 8 , wherein the minimum timeline throughput is based at least in part on downlink and uplink throughput configurations associated with the selected set of carriers.
10. 2. The UE of claim 1, wherein the UE processing capability is based at least in part on at least one of a downlink processing capability or an uplink processing capability for a carrier associated with at least one of the first uplink transmission or the second uplink transmission.
11. 11. The UE of claim 10, wherein the UE processing capability is based at least in part on at least one of a first UE processing capability of a first channel or a second UE processing capability of a second channel.
12. 1. A method of wireless communication performed by a user equipment (UE), comprising: identifying a collision between a first uplink transmission and a second uplink transmission, wherein the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; canceling the second uplink transmission based at least in part on a threshold delay period; Equipped with the threshold delay period is based at least in part on UE processing capability and a minimum processing timeline capability, and the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
13. 13. The method of claim 12, wherein the UE processing capability is based at least in part on an uplink subcarrier spacing of a carrier carrying the second uplink transmission.
14. the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings of a set of carriers; The set of carriers comprises: a first carrier on which a physical downlink control channel that triggers the first uplink transmission is carried; a second carrier on which the second uplink transmission is carried; a third carrier on which the first uplink transmission is carried; or a fourth carrier on which a physical downlink control channel that triggers the second uplink transmission is carried; The method of claim 12 , comprising at least one of:
15. 13. The method of claim 12, wherein the minimum processing timeline capability is an uplink shared channel processing capability and is based at least in part on one or more timing capabilities of a set of carriers associated with the first uplink transmission and the second uplink transmission.
16. 13. The method of claim 12, wherein the UE processing capability is a minimum UE processing capability of a set of UE processing capabilities determined for a set of carriers over which the second uplink transmission is carried.
17. the subcarrier spacing for the set of UE processing capabilities is the minimum subcarrier spacing of a set of subcarrier spacings for a set of channels; The set of channels may be: a first channel on which a physical downlink control channel that triggers said first uplink transmission is carried; or a channel over which the second uplink transmission is carried; 17. The method of claim 16, comprising at least one of:
18. the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings for a set of channels; The set of channels may be: a first channel on which a physical downlink control channel that triggers the first uplink transmission is carried; a second channel over which the second uplink transmission is carried; a third channel on which a physical downlink control channel is carried that triggers the second uplink transmission; or a fourth channel over which the first uplink transmission is carried; The method of claim 12 , comprising at least one of:
19. The method of claim 18 , wherein the minimum timeline throughput is based at least in part on a selected set of carriers.
20. The selected set of carriers comprises: All configured carriers, one or more carriers carrying the second uplink transmission; or one or more carriers associated with a high priority grant; and 20. The method of claim 19, wherein the minimum timeline bandwidth is based at least in part on downlink and uplink bandwidth settings associated with the selected set of carriers.
21. 13. The method of claim 12, wherein the UE processing capability is based at least in part on at least one of a downlink processing capability or an uplink processing capability for a carrier associated with at least one of the first uplink transmission or the second uplink transmission.
22. 22. The method of claim 21, wherein the UE processing capability is based at least in part on at least one of a first UE processing capability of a first channel or a second UE processing capability of a second channel.
23. 1. A non-transitory computer-readable medium storing a set of instructions for wireless communication, the set of instructions comprising: When executed by one or more processors of a user equipment (UE), the method causes the UE to: identifying a collision between a first uplink transmission and a second uplink transmission, wherein the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; canceling the second uplink transmission based at least in part on a threshold delay period; Let them do this, the threshold delay period is based at least in part on UE processing capabilities and minimum processing timeline capabilities, and the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
24. 24. The non-transitory computer-readable medium of claim 23, wherein the UE processing capability is based at least in part on an uplink subcarrier spacing of a carrier carrying the second uplink transmission.
25. the UE processing capability is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings of a set of carriers; The set of carriers comprises: a first carrier on which a physical downlink control channel that triggers the first uplink transmission is carried; a second carrier on which the second uplink transmission is carried; a third carrier on which the first uplink transmission is carried; or a fourth carrier on which a physical downlink control channel that triggers the second uplink transmission is carried; 24. The non-transitory computer-readable medium of claim 23, comprising at least one of:
26. 24. The non-transitory computer-readable medium of claim 23, wherein the minimum processing timeline capability is an uplink shared channel processing capability and is based at least in part on one or more timing capabilities of a set of carriers associated with the first uplink transmission and the second uplink transmission.
27. 1. An apparatus for wireless communication, comprising: means for identifying a collision between a first uplink transmission and a second uplink transmission, wherein the first uplink transmission is a high priority uplink transmission and the second uplink transmission is a low priority uplink transmission; means for canceling the second uplink transmission based at least in part on a threshold delay period; Equipped with the threshold delay period is based at least in part on device processing capabilities and minimum processing timeline capabilities, and the second uplink transmission is canceled before a first overlapping symbol of the first uplink transmission and the second uplink transmission.
28. 30. The apparatus of claim 27, wherein the device processing capability is based at least in part on an uplink subcarrier spacing of a carrier carrying the second uplink transmission.
29. the device throughput is based at least in part on a minimum subcarrier spacing of a set of subcarrier spacings of a set of carriers; The set of carriers comprises: a first carrier on which a physical downlink control channel that triggers the first uplink transmission is carried; a second carrier on which the second uplink transmission is carried; a third carrier on which the first uplink transmission is carried; or a fourth carrier on which a physical downlink control channel that triggers the second uplink transmission is carried; 28. The apparatus of claim 27, comprising at least one of:
30. 28. The apparatus of claim 27, wherein the minimum processing timeline capability is an uplink shared channel processing capability and is based at least in part on one or more timing capabilities of a set of carriers associated with the first uplink transmission and the second uplink transmission.