Uplink traffic priority ranking across multiple links
By identifying communication configurations in the user equipment (UE), receiving uplink resource grants, and transmitting high-priority data based on packet sequence numbers and decoding time priority, the problem of inefficient use of low-wait-time links in existing technologies is solved, enabling the sequential reception and decoding of high-priority data and improving system efficiency and performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- QUALCOMM INC
- Filing Date
- 2021-05-20
- Publication Date
- 2026-05-26
AI Technical Summary
Existing technologies cannot efficiently utilize low latency links for high-priority data transmission when the user equipment (UE) is in dual connectivity mode, especially across multiple frequency ranges and cell blocks, resulting in high-priority data not being received and decoded in sequence.
By identifying the communication configuration carried at the user equipment (UE), uplink resource permission is received, and the association between packets and resources is determined based on the packet sequence number and the completion time of the decoding process. High-priority data is transmitted first, and uplink resources are selected using time-frequency parameters and downlink transmission modes to ensure that high-priority data is received and decoded in order.
This improves system efficiency, reduces waiting time, ensures that high-priority data is processed in order in the network, and enhances the overall performance of the wireless communication system.
Smart Images

Figure CN115699948B_ABST
Abstract
Description
[0001] Cross-references
[0002] This patent application claims priority to U.S. Patent Application No. 16 / 907,131, filed June 19, 2021, entitled "UPLINK TRAFFIC PRIORITIZATION ACROSS MULTIPLE LINKS", which is assigned to the assignee of this application and is incorporated herein by reference. Technical Field
[0003] The following generally pertains to wireless communication, and in particular to uplink traffic prioritization across multiple links.
[0004] background
[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, message sending and receiving, broadcasting, and so on. These systems can support communication with multiple users by sharing available system resources (e.g., time, frequency, and power). Examples of such multiple access systems include fourth-generation (4G) systems (such as Long Term Evolution (LTE) systems, LTE-A Advanced (LTE-A) systems, or LTE-A Pro systems) and fifth-generation (5G) systems, which may be referred to as New Radio (NR) systems. These systems can employ various technologies, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-S-OFDM). A wireless multiple access communication system may include one or more base stations or one or more network access nodes, each of which simultaneously supports communication from multiple communication devices, which may also be referred to as User Equipment (UE).
[0006] The UE can be configured to operate on multiple radio links and / or in multiple frequency ranges (FRs). In some cases, the UE can be configured in dual connectivity mode, where the UE can communicate with two or more cells at one or more base stations using different FRs. In such systems, the UE can be scheduled to use one or more FRs to transmit uplink signals. In some cases, the UE can transmit uplink data on multiple FRs when its buffer state is above a threshold. Current techniques for communicating via multiple FRs may not efficiently utilize low-latency links or FRs for high-priority data transmission.
[0007] Overview
[0008] The described technology relates to improved methods, systems, devices, and apparatuses for supporting uplink traffic prioritization across multiple links. Generally, the described technology provides for reducing latency by ordering and / or prioritizing packet transmissions based on uplink resources corresponding to resource allocation. For example, a user equipment (UE) may communicate with one or more base stations via multiple links, and the UE may transmit a first group of packets on a first link based on a decoding time associated with uplink resources corresponding to the first link.
[0009] For example, the UE can identify a communication configuration for a bearer including a first link and a second link. The UE can identify one or more packets for transmission via the bearer, and each of the one or more packets can be associated with a sequence number. The UE can receive a first grant for a first uplink resource of the first link and a second grant for a second uplink resource of the second link, and the UE can determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource. The UE can transmit the one or more packets on the first uplink resource or the second uplink resource based on the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0010] A method for wireless communication at a UE is described. The method may include: identifying a communication configuration for a bearer including a first link and a second link; identifying one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; receiving a first grant for a first uplink resource of the first link and a second grant for a second uplink resource of the second link; determining the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and a corresponding completion time of a decoding process associated with the first uplink resource and the second uplink resource; and transmitting the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0011] An apparatus for wireless communication at a UE is described. The apparatus may include a processor, a memory coupled to the processor, and instructions stored in the memory. These instructions may be executable by the processor to cause the apparatus to: identify a communication configuration for a bearer including a first link and a second link; identify one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; receive a first grant for a first uplink resource of the first link and a second grant for a second uplink resource of the second link; determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and a corresponding completion time of a decoding process associated with the first uplink resource and the second uplink resource; and transmit the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0012] Another apparatus for wireless communication at a UE is described. The apparatus may include: means for identifying a communication configuration for a bearer including a first link and a second link; means for identifying one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; means for receiving a first grant for a first uplink resource of the first link and a second grant for a second uplink resource of the second link; means for determining the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and a corresponding completion time of a decoding process associated with the first uplink resource and the second uplink resource; and means for transmitting the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0013] A non-transient computer-readable medium is described, storing code for wireless communication at a UE. The code may include instructions executable by a processor to: identify a communication configuration for a bearer including a first link and a second link; identify one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; receive a first grant for a first uplink resource of the first link and a second grant for a second uplink resource of the second link; determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of a decoding process associated with the first uplink resource and the second uplink resource; and transmit the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0014] Examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for: identifying a first set of features of the first uplink resource and a second set of features of the second uplink resource; and determining, based on the first set of features and the second set of features, the corresponding completion time of a decoding process associated with the first uplink resource and the second uplink resource.
[0015] Some examples of the methods, apparatus (devices) and nontransient computer-readable media described herein may further include operations, features, means, or instructions for: determining the corresponding timing of the first uplink resource and the second uplink resource based on the first set of features and the second set of features; and determining the association of the one or more packets with the first uplink resource or the second uplink resource based on the corresponding timing of the first uplink resource and the second uplink resource.
[0016] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the corresponding timing includes the corresponding start time or corresponding end time of the first uplink resource and the second uplink resource.
[0017] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the first and second characteristic sets include corresponding subcarrier spacing, corresponding transmission time intervals, corresponding uplink transmission start times, corresponding uplink transmission lengths, or combinations thereof.
[0018] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the one or more packets include a first packet having a first priority and a second packet having a second priority that may be higher than the first priority, the method further comprising assigning the second packet to a resource having a first completion time in the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource.
[0019] Examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means, or instructions for: determining a corresponding characteristic associated with decoding of the first uplink resource and the second uplink resource by one or more base stations; and determining, based on the corresponding characteristic, the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource.
[0020] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, determining the corresponding characteristic associated with decoding the first uplink resource and the second uplink resource by the one or more base stations may include operations, features, means, or instructions for determining the corresponding received transmission mode of the one or more base stations.
[0021] Examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for: determining a corresponding downlink scheduling mode for the first link and the second link; and determining, based on the corresponding downlink scheduling mode, the association of the one or more packets with the first uplink resource or the second uplink resource.
[0022] Some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein may further include operations, features, means or instructions for identifying the primary link in the first link and the second link based on the downlink scheduling mode, wherein the determination of the association between the one or more packets and the first uplink resource or the second uplink resource is based on the primary link.
[0023] In some examples of the methods, apparatus (devices) and non-transient computer-readable media described herein, the serial number corresponds to a Packet Data Convergence Protocol (PDCP) serial number. Brief description of the attached diagram
[0025] Figure 1 Examples of wireless communication systems for supporting uplink traffic prioritization across multiple links are explained according to various aspects of this disclosure.
[0026] Figure 2 Examples of wireless communication systems that support uplink traffic prioritization across multiple links, according to various aspects of this disclosure, are explained.
[0027] Figure 3A and 3B Examples of uplink data priority ordering techniques that support uplink traffic priority ordering across multiple links, according to various aspects of this disclosure, are explained.
[0028] Figure 4 An example of a process flow supporting uplink traffic priority ordering across multiple links is explained according to various aspects of this disclosure.
[0029] Figure 5 and 6 A block diagram of an apparatus supporting uplink traffic priority ordering across multiple links is shown, according to various aspects of this disclosure.
[0030] Figure 7 A block diagram of a communication manager supporting uplink traffic priority ordering across multiple links, according to various aspects of this disclosure, is shown.
[0031] Figure 8 A diagram of a system including a device that supports uplink traffic prioritization across multiple links, according to various aspects of this disclosure, is shown.
[0032] Figure 9 and 10 A flowchart illustrating a method for supporting uplink traffic prioritization across multiple links according to various aspects of this disclosure is shown.
[0033] Detailed description
[0034] In some wireless communication systems, a User Equipment (UE) can be configured to operate on multiple radio links and / or in multiple frequency ranges (FRs) (e.g., in a sub-6 GHz FR and in a millimeter-wave (mmW) FR, in multiple mmW FRs, etc.). In some cases, the UE can be configured in a dual connectivity mode, where the UE can communicate with two or more cells at one or more base stations using different FRs (e.g., using FR1 in a first cell group and FR2 in a second cell group). In other cases, the UE can be configured to have one or more FR1 component carriers (CCs) and one or more FR2 CCs. In such systems, the UE can be scheduled to use one or more FRs to transmit uplink signals (e.g., data, control, or reference signals). In some cases, the UE can transmit uplink data on multiple FRs when its buffer state is above a threshold. However, this may prevent the use of low latency links or FRs for high-priority data transmission (e.g., acknowledgments (ACKs), high-priority traffic, etc.).
[0035] Various aspects of this disclosure provide techniques for processing uplink transmissions in the context of multiple links, multiple cells, multiple frequency regions, or multiple types of transmission time intervals (TTIs) (e.g., subframes, time slots, mini-time slots). For example, a UE can transmit data on uplink resources based on known or expected network decoding times for data transmitted according to uplink resources. In some cases, a UE can receive multiple uplink grants and determine the network decoding order corresponding to the uplink transmissions of those grants. High-priority traffic can be transmitted based on when the traffic will be decoded by the network, which can allow the network to receive and decode high-priority traffic before lower-priority traffic. In some cases, packets of the same or similar priority can be split into multiple groups, and each group can be transmitted according to uplink resources so that these packets are processed by the network in sequence. The UE can generate packets such that the sequence number (e.g., Packet Data Control Protocol (PDCP) sequence number) associated with the first packet group (e.g., high priority) is lower than the sequence number associated with the second packet group (e.g., low priority), so that the network can receive data packets in sequence, which can reduce system latency.
[0036] Such techniques may include determining when data corresponding to several uplink resources will be processed by the base station, and transmitting data according to one or more uplink resources based on when the data will be processed by the base station. In such cases, the UE may select uplink resources (e.g., uplink resources corresponding to received permission, radio access technology (RAT), frequency region, link, time domain, or any combination thereof) based on time-frequency parameters and / or downlink transmission modes. Time-frequency parameters may include an indication of subcarrier spacing (SCS), an offset between downlink (DL) slots where indications (e.g., physical downlink control channel (PDCCH), downlink control information (DCI), etc.) are received and uplink (UL) slots where UL data can be transmitted (e.g., transmitted on the physical uplink shared channel (PUSCH) (which may be referred to as K2), a start symbol and allocation length indicator value (SLIV), an uplink scheduling mode (e.g., slot format indication (SFI), past uplink transmission mode, etc.) or any combination thereof. Downlink transmission modes can include ACK / NACK mode, average ACK / NACK response time, FR or scheduling frequency on the link, primary FR, primary link, or any combination thereof. Determining uplink resources based on time-frequency parameters and / or downlink transmission modes can improve system efficiency and reduce latency.
[0037] The aspects of this disclosure are initially described in the context of a wireless communication system. The aspects of this disclosure are then described with reference to uplink data prioritization techniques and processing flows. The aspects of this disclosure are further explained and described by means of and reference to apparatus diagrams, system diagrams, and flowcharts relating to uplink traffic prioritization across multiple links.
[0038] Figure 1 Examples of a wireless communication system 100 supporting uplink traffic prioritization across multiple links according to various aspects of this disclosure are described. The wireless communication system 100 may include one or more base stations 105, one or more UEs 115, and a core network 130. In some examples, the wireless communication system 100 may be a Long Term Evolution (LTE) network, an Advanced LTE (LTE-A) network, an LTE-A Pro network, or a New Radio (NR) network. In some examples, the wireless communication system 100 may support enhanced broadband communication, ultra-reliable (e.g., mission-critical) communication, low latency communication, communication with low-cost and low-complexity devices, or any combination thereof.
[0039] Base station 105 can be distributed across a geographical area to form wireless communication system 100, and can be different types of devices or devices with different capabilities. Base station 105 and UE 115 can communicate wirelessly via one or more communication links 125. Each base station 105 can provide a coverage area 110, and UE 115 and base station 105 can establish one or more communication links 125 on the coverage area 110. Coverage area 110 can be an example of a geographical area over which base station 105 and UE 115 can support signal communication according to one or more radio access technologies.
[0040] Each UE 115 can be distributed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 can be stationary or mobile, or stationary and mobile at different times. Each UE 115 can be a different type of device or a device with different capabilities. Figure 1 The document describes some example UE 115s. The UE 115 described herein can communicate with various types of devices, such as other UE 115s, base station 105, or network equipment (e.g., core network nodes, relay equipment, integrated access and backhaul (IAB) nodes, or other network equipment). Figure 1 As shown in the image.
[0041] Each base station 105 may communicate with the core network 130, or with each other, or both. For example, base station 105 may interface with the core network 130 via one or more backhaul links 120 (e.g., via S1, N2, N3, or other interfaces). Base stations 105 may communicate with each other directly (e.g., directly between base stations 105), indirectly (e.g., via the core network 130), or directly and indirectly on backhaul links 120 (e.g., via X2, Xn, or other interfaces). In some examples, backhaul link 120 may be or include one or more radio links.
[0042] One or more of the base stations 105 described herein may include, or may be referred to by those skilled in the art as, base transceiver station, radio base station, access point, radio transceiver, B node, evolved B node (eNB), next-generation B node or gigabit B node (any of which may be referred to as gNB), home B node, home evolved B node, or other suitable terms.
[0043] UE 115 may include or be referred to as a mobile device, wireless device, remote device, handheld device, or subscriber device, or any other suitable term, wherein "device" may also be referred to as a unit, station, terminal, or client, etc. UE 115 may also include or be referred to as a personal electronic device, such as a cellular phone, personal digital assistant (PDA), tablet computer, laptop computer, or personal computer. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, Internet of Things (IoT) device, Internet of Everything (IoE) device, or machine-type communication (MTC) device, which may be implemented in various objects such as appliances or vehicles, meters, etc.
[0044] The UE 115 described herein can communicate with various types of devices, such as other UEs 115 that sometimes act as relays, as well as base station 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 As shown in the image.
[0045] UE 115 and base station 105 can wirelessly communicate with each other via one or more communication links 125 on one or more carriers. The term "carrier" can refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting communication link 125. For example, a carrier for communication link 125 may include a portion of the radio spectrum band (e.g., a bandwidth portion (BWP)) operating according to one or more physical layer channels for a given radio access technology (e.g., LTE, LTE-A, LTE-A Pro, NR). Each physical layer channel may carry acquisition signaling (e.g., synchronization signals, system information), control signaling coordinating carrier operation, user data, or other signaling. Wireless communication system 100 may support communication with UE 115 using carrier aggregation or multi-carrier operation. UE 115 may be configured to have multiple downlink component carriers and one or more uplink component carriers according to a carrier aggregation configuration. Carrier aggregation may be used in conjunction with both frequency division duplex (FDD) and time division duplex (TDD) component carriers.
[0046] In some examples (e.g., in a carrier aggregation configuration), the carrier may also have acquisition signaling or control signaling to coordinate the operation of other carriers. The carrier may be associated with a frequency channel (e.g., an Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (E-UTRA) Absolute Radio Frequency Channel Number (EARFCN)) and may be located according to a channel grid for discovery by UE 115. The carrier may operate in an autonomous mode in which initial acquisition and connection can be performed by UE 115 via that carrier, or in a non-autonomous mode in which the carrier may connect to carriers anchored using different carriers (e.g., different carriers of the same or different radio access technologies).
[0047] The communication link 125 shown in the wireless communication system 100 may include uplink transmission from UE 115 to base station 105, or downlink transmission from base station 105 to UE 115. The carrier may carry downlink or uplink communication (e.g., in FDD mode), or may be configured to carry both downlink and uplink communication (e.g., in TDD mode).
[0048] A carrier may be associated with a specific bandwidth of the radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as the carrier or the “system bandwidth” of the wireless communication system 100. For example, the carrier bandwidth may be one of several defined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 MHz) of a carrier for a particular radio access technology. Devices of the wireless communication system 100 (e.g., base station 105, UE 115, or both) may have a hardware configuration that supports communication over a specific carrier bandwidth, or may be configurable to support communication over a single carrier bandwidth within a set of carrier bandwidths. In some examples, the wireless communication system 100 may include a base station 105 or UE 115 that supports simultaneous communication via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate over a portion (e.g., a subband, BWP) or all of the carrier bandwidth.
[0049] The signal waveform transmitted on the carrier may include multiple subcarriers (e.g., using multi-carrier modulation (MCM) techniques, such as orthogonal frequency division multiplexing (OFDM) or discrete Fourier transform extended OFDM (DFT-S-OFDM)). In a system employing MCM, a resource element may include a symbol period (e.g., the duration of a modulation symbol) and a subcarrier, where the symbol period and subcarrier spacing are inversely related. The number of bits carried by each resource element may depend on the modulation scheme (e.g., the order of the modulation scheme, the code rate of the modulation scheme, or both). Thus, the more resource elements the UE 115 receives and the higher the order of the modulation scheme, the higher the data rate the UE 115 can achieve. Wireless communication resources can refer to a combination of radio frequency spectrum resources, temporal resources, and spatial resources (e.g., spatial layers or beams), and using multiple spatial layers can further improve the data rate or data integrity of communication with the UE 115.
[0050] One or more parameter designs for a carrier can be supported, where the parameter design may include a subcarrier spacing (Δf) and a cyclic prefix. A carrier can be divided into one or more BWPs with the same or different parameter designs. In some examples, UE 115 can be configured with multiple BWPs. In some examples, a single BWP for a carrier can be active at a given time, and communication for UE 115 can be limited to one or more active BWPs.
[0051] The time interval of base station 105 or UE 115 can be expressed as a multiple of a basic time unit, such as the sampling period T. s =1 / (Δf) max ·N f ) seconds, where Δf max This can represent the maximum supported subcarrier spacing, while N f This can represent the maximum supported Discrete Fourier Transform (DFT) size. The time interval of the communication resources can be organized according to radio frames, each with a specified duration (e.g., 10 milliseconds (ms)). Each radio frame can be identified by a System Frame Number (SFN) (e.g., ranging from 0 to 1023).
[0052] Each frame may include multiple consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may (e.g., in the time domain) be divided into subframes, and each subframe may be further divided into several time slots. Alternatively, each frame may include a variable number of time slots, and the number of time slots may depend on the subcarrier spacing. Each time slot may include several symbol periods (e.g., depending on the length of the cyclic prefix added before each symbol period). In some wireless communication systems 100, time slots may be further divided into multiple mini-time slots containing one or more symbols. Excluding the cyclic prefix, each symbol period may contain one or more (e.g., Nf) sampling periods. The duration of a symbol period may depend on the subcarrier spacing or the operating frequency band.
[0053] A subframe, time slot, mini-slot, or symbol can be the smallest scheduling unit of the wireless communication system 100 (e.g., in the time domain) and can be referred to as a transmission time interval (TTI). In some examples, the duration of the TTI (e.g., the number of symbol periods in the TTI) can be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 can be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).
[0054] Physical channels can be multiplexed on a carrier using various techniques. Physical control channels and physical data channels can be multiplexed on a downlink carrier, for example, using one or more of Time Division Multiplexing (TDM), Frequency Division Multiplexing (FDM), or hybrid TDM-FDM techniques. A control region (e.g., a control resource set (CORESET)) for physical control channels can be defined by the number of symbol periods and can extend across the system bandwidth or a subset of the system bandwidth of the carrier. One or more control regions (e.g., CORESET) can be configured for a set of UEs 115. For example, one or more UEs 115 can monitor or search control regions for control information based on one or more search space sets, and each search space set can include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for control channel candidates can refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information in a control information format having a given payload size. The search space set may include a common search space set configured to send control information to multiple UEs 115 and a UE-specific search space set configured to send control information to a specific UE 115.
[0055] Each base station 105 may provide communication coverage via one or more cells (e.g., macrocells, small cells, hotspots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with base station 105 (e.g., on a carrier) and may be associated with an identifier used to distinguish adjacent cells (e.g., Physical Cell Identifier (PCID), Virtual Cell Identifier (VCID), or others). In some examples, a cell may also refer to a geographic coverage area 110 or a portion of geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The extent of such cells may vary from smaller areas (e.g., structures, subsets of structures) to larger areas depending on various factors (such as the capabilities of base station 105). For example, a cell may be or include buildings, subsets of buildings, or external space between or overlapping geographic coverage areas 110, among other examples.
[0056] Macrocells typically cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs 115 that have service subscriptions with a network provider supporting the macrocell. Small cells may be associated with a lower-power base station 105 (compared to macrocells) and may operate in the same or different (e.g., licensed or unlicensed) frequency bands as macrocells. Small cells may provide unrestricted access to UEs 115 that have service subscriptions with a network provider, or may provide restricted access to UEs 115 associated with the small cell (e.g., UEs 115 in a Closed Subscriber Group (CSG), or UEs 115 associated with a user in a home or office). Base station 105 may support one or more cells and may also support communication on one or more cells using one or more component carriers.
[0057] In some examples, a carrier can support multiple cells and can be configured with different cells based on different protocol types that can provide access for different types of devices (e.g., MTC, Narrowband IoT (NB-IoT), Enhanced Mobile Broadband (eMBB)).
[0058] In some examples, base station 105 may be mobile, and thus provide communication coverage to mobile geographic coverage areas 110. In some examples, different geographic coverage areas 110 associated with different technologies may overlap, but the different geographic coverage areas 110 may be supported by the same base station 105. In other examples, overlapping geographic coverage areas 110 associated with different technologies may be supported by different base stations 105. Wireless communication system 100 may include, for example, a heterogeneous network, in which different types of base stations 105 use the same or different radio access technologies to provide coverage to various geographic coverage areas 110.
[0059] The wireless communication system 100 can support synchronous or asynchronous operation. For synchronous operation, base stations 105 can have similar frame timing, and transmissions from different base stations 105 can be approximately time-aligned. For asynchronous operation, base stations 105 can have different frame timing, and transmissions from different base stations 105 may not be time-aligned in some examples. The techniques described herein can be used for both synchronous and asynchronous operation.
[0060] Some UE 115 devices (such as MTC or IoT devices) can be low-cost or low-complexity devices and can provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC can refer to data communication technologies that allow devices to communicate with each other or with base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that have integrated sensors or meters to measure or capture information and relay such information to a central server or application that uses the information or presents it to people interacting with the application. Some UE 115 devices may be designed to collect information or automate the behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, healthcare monitoring, wilderness survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial toll collection.
[0061] Some UEs 115 can be configured to operate in reduced-power modes, such as half-duplex communication (e.g., a mode that supports unidirectional communication via transmission or reception but not simultaneous transmission and reception). In some examples, half-duplex communication can be performed at a reduced peak rate. Other power-saving techniques for UEs 115 include entering a power-saving deep sleep mode when not engaged in active communication, operating on limited bandwidth (e.g., according to narrowband communication), or a combination of these techniques. For example, some UEs 115 can be configured to operate using a narrowband protocol type associated with a defined portion or range (e.g., subcarriers or resource block (RB) set) within the carrier, within the carrier's guard band, or outside the carrier.
[0062] Wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication, or various combinations thereof. For example, wireless communication system 100 may be configured to support ultra-reliable low latency communication (URLLC) or mission-critical communication. UE 115 may be designed to support ultra-reliable, low latency, or mission-critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private or group communication and may be supported by one or more mission-critical services, such as Mission-Critical Talk-to-Talk (MCPTT), Mission-Critical Video (MCVideo), or Mission-Critical Data (MCData)). Support for mission-critical functions may include prioritization of services, and mission-critical services may be used for public safety or general business applications. The terms ultra-reliable, low latency, mission-critical, and ultra-reliable low latency are used interchangeably herein.
[0063] In some examples, UE 115 may also be able to communicate directly with other UE 115 on a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UE 115s utilizing D2D communication may be within the geographic coverage area 110 of base station 105. Other UE 115s in such a group may be outside the geographic coverage area 110 of base station 105 or may be unable to receive transmissions from base station 105 for other reasons. In some examples, groups of UE 115s communicating via D2D communication may utilize a one-to-many (1:M) system, where each UE 115 transmits to every other UE 115 in the group. In some examples, base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between the individual UE 115s without involving base station 105.
[0064] In some systems, the D2D communication link 135 may be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, vehicles may communicate using vehicle-to-vehicle (V2X) communication, vehicle-to-vehicle (V2V) communication, or some combination of these communications. Vehicles may signal information related to traffic conditions, signaling, weather, safety, emergencies, or any other information relevant to the V2X system. In some examples, vehicles in a V2X system may communicate via vehicle-to-network (V2N) communication through one or more network nodes (e.g., base station 105) with roadside infrastructure (such as roadside units), or with the network, or with both.
[0065] Core network 130 provides user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. Core network 130 can be an evolved packet core (EPC) or a 5G core (5GC). The EPC or 5GC may include at least one control plane entity (e.g., a Mobility Management Entity (MME), Access and Mobility Management Function (AMF)) for managing access and mobility, and at least one user plane entity (e.g., a Serving Gateway (S-GW), Packet Data Network (PDN) Gateway (P-GW), or User Plane Function (UPF)) for routing packets or interconnecting to external networks. The control plane entity manages non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by base station 105 associated with core network 130. User IP packets can be delivered through the user plane entity, which provides IP address allocation and other functions. The user plane entity can connect to network operator IP service 150. Carrier IP services 150 may include access to the Internet, intranets, IP Multimedia Subsystem (IMS), or packet-switched streaming services.
[0066] Some network devices (such as base station 105) may include sub-components, such as access network entity 140, which may be an example of an access node controller (ANC). Each access network entity 140 may communicate with each UE 115 through one or more other access network transport entities 145, which may be referred to as a radio headend, smart radio headend, or transmit / receive point (TRP). Each access network transport entity 145 may include one or more antenna panels. In some configurations, the various functions of each access network entity 140 or base station 105 may be distributed across various network devices (e.g., radio headends and ANCs) or combined into a single network device (e.g., base station 105).
[0067] Wireless communication system 100 can operate using one or more frequency bands, typically in the range of 300 MHz to 300 GHz. Generally, the 300 MHz to 3 GHz band is referred to as a UHF band or decimeter band because the wavelengths range from approximately 1 decimeter to 1 meter. UHF waves can be blocked or redirected by buildings and environmental features, but these waves can penetrate various structures sufficiently for macrocells to provide service to UE 115 located indoors. Compared to transmissions using smaller frequencies and longer waves in the lower HF or VHF portions of the spectrum below 300 MHz, UHF wave transmission can be associated with smaller antennas and shorter ranges (e.g., less than 100 km).
[0068] The wireless communication system 100 can also operate in the ultra-high frequency (SHF) zoning using a frequency band from 3 GHz to 30 GHz (also known as the centimeter band) or in the extremely high frequency (EHF) zoning using a spectrum (e.g., from 30 GHz to 300 GHz) (also known as the millimeter band). In some examples, the wireless communication system 100 can support millimeter-wave (mmW) communication between the UE 115 and the base station 105, and the EHF antennas of the corresponding devices can be smaller and more closely spaced than UHF antennas. In some examples, this can facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may suffer even greater atmospheric attenuation and shorter range than SHF or UHF transmissions. The techniques disclosed herein can be employed across transmissions using one or more different frequency zonings, and the frequency band usage specified across these frequency zonings may vary by country or regulatory authority.
[0069] Wireless communication system 100 may utilize both licensed and unlicensed radio spectrum bands. For example, wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in unlicensed frequency bands (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in unlicensed radio spectrum bands, devices (such as base station 105 and UE 115) may employ carrier sensing for collision detection and avoidance. In some examples, operation in unlicensed frequency bands may be based on carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in licensed frequency bands. Operation in unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, etc.
[0070] Base station 105 or UE 115 may be equipped with multiple antennas that can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communication, or beamforming. The antennas of base station 105 or UE 115 may be located within one or more antenna arrays or antenna panels that can support MIMO operation or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may coexist at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with base station 105 may be located in different geographical locations. Base station 105 may have an antenna array with several rows and columns of antenna ports that base station 105 can use to support beamforming for communication with UE 115. Similarly, UE 115 may have one or more antenna arrays that can support various MIMO or beamforming operations. Additionally or alternatively, the antenna panel may support radio frequency beamforming for signals transmitted via the antenna ports.
[0071] Base station 105 or UE 115 can use MIMO communication to leverage multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. This technique is known as spatial multiplexing. For example, a transmitting device may transmit multiple signals via different antennas or different combinations of antennas. Similarly, a receiving device may receive multiple signals via different antennas or different combinations of antennas. Each of the multiple signals may be referred to as a separate spatial stream and may carry bits associated with the same data stream (e.g., the same codeword) or different data streams (e.g., different codewords). Different spatial layers may be associated with different antenna ports used for channel measurement and reporting. MIMO techniques include single-user MIMO (SU-MIMO), where multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), where multiple spatial layers are transmitted to multiple devices.
[0072] Beamforming (also known as spatial filtering, directional transmission, or directional reception) is a signal processing technique that can be used at a transmitting or receiving device (e.g., base station 105, UE 115) to shape or guide an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting and receiving devices. Beamforming can be achieved by combining signals transmitted via antenna elements of an antenna array, such that some signals propagating relative to a particular orientation of the antenna array experience constructive interference, while others experience destructive interference. Adjustments to the signals transmitted via the antenna elements may include the transmitting or receiving device applying amplitude offset, phase offset, or both to the signals carried via the antenna elements associated with that device. The adjustments associated with each antenna element may be defined by a beamforming weight set associated with a particular orientation (e.g., the antenna array relative to the transmitting or receiving device, or relative to some other orientation).
[0073] Base station 105 or UE 115 may use beamsweeping techniques as part of beamforming operations. For example, base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) for beamforming operations to facilitate directional communication with UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by base station 105 in different directions. For example, base station 105 may transmit signals based on different beamforming weight sets associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by the transmitting device (such as base station 105) or the receiving device (such as UE 115)) to identify the beam direction that base station 105 uses for later transmission or reception.
[0074] Some signals (such as data signals associated with a specific receiving device) may be transmitted by base station 105 in a single beam direction (e.g., the direction associated with the receiving device (such as UE 115)). In some examples, the beam direction associated with transmission along a single beam direction may be determined based on the signals transmitted in one or more beam directions. For example, UE 115 may receive one or more signals transmitted by base station 105 in different directions and may report to base station 105 an indication of the signals received by UE 115 with the highest signal quality or other acceptable signal quality.
[0075] In some examples, transmissions performed by a device (e.g., by base station 105 or UE 115) may be executed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate combined beams for transmission (e.g., from base station 105 to UE 115). UE 115 may report feedback indicating precoding weights for one or more beam directions, and this feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. Base station 105 may transmit reference signals that may be precoded or unprecoded (e.g., cell-specific reference signals (CRS), channel state information reference signals (CSI-RS)). UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., multi-panel type codebook, linear combination type codebook, port selection type codebook). Although these techniques are described with reference to signals transmitted by base station 105 in one or more directions, UE 115 may use similar techniques to transmit signals multiple times in different directions (e.g., to identify the beam direction used by UE 115 for subsequent transmission or reception) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).
[0076] A receiver device (e.g., UE 115) may attempt multiple receive configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from base station 105. For example, the receiver device may attempt multiple receive directions by: receiving via different antenna subarrays; processing received signals according to different antenna subarrays; receiving according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array (e.g., different directional listening weight sets); or processing received signals according to different sets of receive beamforming weights applied to signals received at multiple antenna elements of the antenna array, any of which may be referred to as "listening" according to different receive configurations or receive directions. In some examples, the receiver device may use a single receive configuration to receive along a single beam direction (e.g., when receiving a data signal). The single receive configuration may be aligned on a beam direction determined based on listening according to different receive configuration directions (e.g., a beam direction determined to have the highest signal strength, highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).
[0077] The wireless communication system 100 can be a packet-based network operating according to a layered protocol stack. In the user plane, communication at the bearer or PDCP layer can be IP-based. The Radio Link Control (RLC) layer performs packet segmentation and reassembly for communication on logical channels. The Media Access Control (MAC) layer performs priority handling and multiplexing of logical channels into transport channels. The MAC layer can also use error detection, error correction, or both to support MAC layer retransmissions to improve link efficiency. In the control plane, the Radio Resource Control (RRC) protocol layer can provide the establishment, configuration, and maintenance of RRC connections between the UE 115 and the base station 105 or core network 130 supporting user plane data radio bearers. At the physical layer, transport channels can be mapped to physical channels.
[0078] UE 115 and base station 105 can support data retransmission to increase the likelihood of successful data reception. Hybrid Automatic Repeat Request (HARQ) feedback is a technique used to increase the likelihood of correctly receiving data on communication link 125. HARQ may include a combination of error detection (e.g., using Cyclic Redundancy Check (CRC)), forward error correction (FEC), and retransmission (e.g., Automatic Repeat Request (ARQ)). HARQ can improve MAC layer throughput in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, the device may support simultaneous time-slot HARQ feedback, where the device can provide HARQ feedback in a specific time slot for data received in previous symbols within that time slot. In other cases, the device may provide HARQ feedback in subsequent time slots or according to some other time interval.
[0079] UE 115 can order and / or prioritize packet transmissions based on uplink resources corresponding to resource grants. For example, UE 115 can communicate with one or more base stations 115 via multiple links, and UE 115 can transmit a first group of packets on a first link based on the decoding time associated with uplink resources corresponding to the first link.
[0080] For example, UE 115 may identify a communication configuration for a bearer including a first link and a second link, and one or more packets for transmission via the bearer, each of which may be associated with a sequence number. UE 115 may receive a first grant for a first uplink resource of the first link and a second grant for a second uplink resource of the second link, and UE 115 may determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource. UE 115 may transmit the one or more packets on the first uplink resource or the second uplink resource based on the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0081] Figure 2 Examples of a wireless communication system 200 supporting uplink traffic prioritization according to various aspects of this disclosure are described. In some examples, the wireless communication system 200 may implement various aspects of the wireless communication system 100. The wireless communication system 200 may include base stations 105-a and 105-b, which may be as described in reference... Figure 1 An example of a base station 105 is described. Each base station 105 may be associated with several cells and several coverage areas 110, and the UE 115-a may communicate with one or more base stations 105 via link 205.
[0082] UE 115-a may be associated with base station 105-a, and UE 115-a may communicate with base station 105-a via link 205-a. UE 115-a may additionally communicate with base station 105-a via link 205-b, and in some additional or alternative cases, UE 115-a may communicate with base station 105-b via link 205-c. In some cases, base station 105-a may be associated with a first RAT (e.g., 5G NR), and base station 105-b may be associated with a second RAT (e.g., 4G LTE). UE 115-a may communicate with one or more base stations 105 via multiple links 205 (e.g., links 205-a and 205-b, links 205-a and 205-c), and the UE may select the link 205 for transmitting uplink data based on time-frequency parameters and / or downlink transmission mode, which can reduce system latency.
[0083] UE 115-a can receive multiple indications (e.g., uplink grant, DCI, Physical Downlink Shared Channel (PDSCH), PDCCH) from one or more base stations 105. In some examples, UE 115-a can operate in dual connectivity mode and receive a first grant (e.g., PDCCH) on link 205-c and a second grant on link 205-a. The first grant may indicate a first PUSCH 210-c, and the second grant may indicate a second PUSCH 210-a. In some cases, UE 115-a may receive a third grant indicating a third PUSCH 210-b. UE 115-a can determine or predict the completion time for base station 105-b to process data associated with the first PUSCH 210-c and the completion time for base station 105-a to process data associated with the second PUSCH 210-a, and UE 115-a can determine which completion time is earlier. In some scenarios, UE 115-a may transmit packets (e.g., high-priority packets, ACK / NACK packets, PDCP packets, etc.) as part of a PUSCH associated with an earlier completion time for processing the packet. For example, the completion time for processing data associated with the second PUSCH 210-a may be earlier than the completion time for processing data associated with the first PUSCH 210-c, so UE 115-a may transmit high-priority packets as part of the second PUSCH 210-a on link 205-a. In some scenarios, UE 115-a may transmit a first group of packets as part of the second PUSCH 210-a and a second group of packets as part of the first PUSCH 210-c. The first group of packets may be associated with a PDCP sequence number lower than the PDCP sequence number associated with the second group of packets, and because the completion time for processing the first group of packets is earlier than the completion time for processing the second group of packets, the network can process the PDCP packets sequentially.
[0084] UE 115-a can determine or predict the completion time for processing data associated with uplink resources (e.g., PUSCH 210, PUCCH, etc.) based on the over-the-air (OTA) time associated with the resource (e.g., start time, end time) and / or the decoding time associated with base station 105 decoding data associated with uplink resources. In some cases, the end time of the OTA time can be based on time-frequency parameters (such as SCS, K2, SLIC, or SFI) and can be referred to as Ei. The decoding time can be referred to as Di and can be based on downlink transmission modes such as ACK / NACK mode, average ACK / NACK response time, historical modes of scheduling links or FRs, minimum values associated with past PUSCH ACK / NACK timings, or estimates based on permissioned (e.g., uplink permission, PDCCH, PDSCH) decoding time (e.g., N1). UE 115-a may determine the completion time for processing data associated with uplink resources based on the end time of the OTA (Over-The-Air) time (Ei), the decoding time associated with the base station (Di), or both (e.g., Ei+Di). In some cases, UE 115-a may determine the completion time for processing data associated with uplink resources based on the PUSCH preparation time (e.g., N2), and this PUSCH preparation time may correspond to a first capability (e.g., capability 1) or a second capability (e.g., capability 2) of UE 115-a. In some cases, UE 115-a may process and perform MAC packet construction according to the order in which packets will be decoded by base station 105, which order may be represented by the completion time for processing data associated with uplink resources.
[0085] In other examples, UE 115-a can operate in carrier aggregation (CA) mode and receive a first grant (e.g., a first indication) and a second grant (e.g., a second indication) from base station 105-a. The first grant may be associated with a first FR (e.g., FR1, link 205-a) and a first time resource, and the second grant may be associated with a second FR (e.g., FR2, link 205-b) and a second time resource. The time resource of the second grant may precede the time resource of the first grant, so UE 115-a can transmit packets (e.g., high priority packets, ACK / NACK packets, etc.) on the FR corresponding to the second grant (e.g., FR2, link 205-b). In some cases, the FR corresponding to the first grant and the FR corresponding to the second grant may each be associated with different CSs. The SCS associated with the FR corresponding to the second grant may be greater than the SCS associated with the FR corresponding to the first grant, and the symbol time of the FR corresponding to the second grant may be shorter than the symbol time of the FR corresponding to the first grant. Thus, depending on the location of the permission start and the number of symbols, the OTA time of the second FR can precede the OTA time of the first FR. In some cases, UE 115-a can transmit additional packets on the FR corresponding to the first permission (e.g., FR1, link 205-a).
[0086] In other examples, UE 115-a may receive from base station 105-a a first indication corresponding to a first uplink resource (e.g., 12 OFDM symbol slots, 14 OFDM symbol slots) and a second indication corresponding to a second uplink resource (e.g., mini slots, 2 OFDM symbol slots, 4 OFDM symbol slots, 7 OFDM symbol slots). The first and second uplink resources may correspond to overlapping time resources, so UE 115-a can transmit packets (e.g., high-priority packets, ACK / NACK packets, etc.) based on the second uplink resource, because base station 105-a can process data corresponding to slots with fewer symbols faster than data corresponding to slots with more symbols.
[0087] Figure 3A and 3B Examples of uplink data priority sequencing techniques 301 and 302 supporting uplink traffic priority sequencing according to various aspects of this disclosure are described. In some examples, uplink data priority sequencing techniques 301 and 302 can implement various aspects of wireless communication system 100 or 200. The operation of uplink data priority sequencing techniques 301 and 302 can be implemented by UE 115 or its components as described herein.
[0088] The UE can receive grants 305 of uplink data prioritization techniques 301 (e.g., uplink grant, PDCCH, PDSCH), and the UE can transmit data to the base station according to PUSCH 310-a. In some cases, PUSCH time allocation can be configured by radio resource control (RRC) procedures for links or RATs, and in some additional or alternative cases, uplink data prioritization techniques 301 can correspond to links or RATs. One or more grants 305 can include or indicate a DCI specifying the granted uplink resource (e.g., PUSCH 310-a). The DCI can include parameters (such as K2 and SLIV). K2 can indicate the gap between the DCI and the start time slot, and SLIV can indicate the start symbol and symbol length used for transmission. In some cases, the UE can determine the completion time for processing data corresponding to uplink resources based on K2 and / or SLIV.
[0089] In some cases, the UE may estimate or approximate the completion time for processing data corresponding to uplink resources based on the decoding time of PUSCH 310-a (e.g., N1) and / or the gap between grant 305 and PUSCH 310. In some additional or alternative cases, grant groups (e.g., grant 305-a, grant 305-b, grant 305-c, grant 305-d, grant 305-e, grant 305-f, and grant 305-g) may correspond to time slots. Some grants 305 may correspond to the same earliest uplink resource (e.g., PUSCH 310-a), and some grants 305 may correspond to different gaps between grant 305 and PUSCH 310. For example, the gap between 305-a and PUSCH 310-a can correspond to the gap of N1+12, while the gap between 305-g and PUSCH 310-a can correspond to the gap of N1.
[0090] A UE can be associated with multiple links. For example, uplink data prioritization technique 302 describes a first link 315-a and a second link 315-b. In some cases, the first link 315-a and the second link 315-b can be associated with a first RAT (e.g., 5G NR), while in some additional or alternative cases, the second link 315-b can be associated with the first RAT (e.g., 5G NR), and the first link 315-a can be associated with a second RAT (e.g., 4G LTE). The bearer can be configured for the UE to use both the first link 315-a and the second link 315-b.
[0091] The UE can receive multiple grants (e.g., grant 305-h and grant 305-i) and transmit packets to one or more base stations based on the uplink resources (e.g., PUSCH 310-b and PUSCH 310-c) associated with the grant. The UE can transmit packet groups based on the time the grant was received and the Ei or Di time associated with the uplink resource. For example, the UE can determine Ei1 320-a and Di1 325-a associated with the grant for PUSCH 310-b, and Ei2 320-b and Di2 325-b associated with the grant for PUSCH 310-c. In some cases, the UE can transmit higher-priority packets (e.g., ACK / NACK packets with lower sequence numbers) on links with earlier transmission times (e.g., based on the grant time and Ei time 320). For example, the UE can determine that although permission for PUSCH 310-b is received earlier than permission for PUSCH 310-c, the shorter Ei time for PUSCH 310-c results in an earlier transmission time (e.g., the end of the OTA time).
[0092] In some scenarios, the UE can determine or predict the completion time for decoding packets transmitted on multiple uplink resources (e.g., based on permission and Ei+Di), and the UE can transmit higher-priority packets (e.g., packets with lower sequence numbers, ACK / NACK packets) based on the completion time for decoding that packet. For example, the UE can determine that the completion time 330-b for decoding a packet corresponding to PUSCH 310-c on link 315-b is earlier than the completion time 330-a for decoding a packet corresponding to PUSCH 310-b on link 315-a, so the UE can transmit a packet group based on PUSCH 310-c on link 315-b. The UE can determine Di based on downlink transmission patterns (such as ACK / NACK patterns, average ACK / NACK response times, historical patterns of scheduling links or FRs, minimum values associated with past PUSCH ACK / NACK timings, or estimates based on PDSCH decoding times (e.g., N1). In some additional or alternative examples, the UE can transmit a first packet group associated with a first PDCP sequence number group according to PUSCH 310-c, and a second packet group associated with a second PDCP sequence number group according to PUSCH 310-b. The first PDCP sequence number group can be lower than the second PDCP sequence number group, so the network can receive packets in sequence. Determining the completion time for decoding packets associated with multiple links 315 supports the UE in transmitting packets in sequence, which can reduce system latency.
[0093] In some scenarios, a UE may be associated with multiple links 315, and links 315 may be associated with different RATs, SCSs, FRs, or any combination thereof. The UE may select uplink resources for transmitting packets based on the slot format. In some examples, when determining the completion time for decoding packets corresponding to uplink resources, the UE may consider the symbol direction of the slot's symbols. For example, the UE may receive a first grant for a first link associated with an LTE RAT and a second grant for a second link associated with an NR RAT. The UE may determine which uplink resources are associated with an earlier completion time for decoding packets based on which uplink resources support earlier uplink directions, which resources support earlier flexible directions, and which uplink resources only support uplink directions. Some RATs may have fixed associations for symbol directions for each slot, while some RATs may have flexible or dynamic allocations, and indicator (e.g., slot format indicator) may be used to indicate symbol directions on a slot-by-slot basis. When determining the completion time for decoding packets transmitted via the link, the UE can consider both fixed-allocation uplink symbols and dynamically allocated symbols. For example, uplink resources associated with a first grant may overlap with resources associated with a second grant in the time domain, and the uplink resources associated with the first grant may be associated with time slots that include a larger number of uplink symbol directions. Thus, in some cases, the UE can determine that the uplink resources associated with the first grant are associated with an earlier completion time for decoding packets.
[0094] Figure 4 Examples of a process flow 400 supporting uplink traffic prioritization according to various aspects of this disclosure are explained. In some examples, process flow 400 may implement various aspects of wireless communication systems 100 and 200. Process flow 400 includes UE 115-b, base station 105-c, and base station 105-d, which may be referenced... Figure 1 Examples of the corresponding devices described in section 3. UE 115-b can split uplink data across links to improve network efficiency and reduce latency. The following alternative examples can be implemented, some of which may be performed in a different order than described or not at all. In some cases, the steps may include additional features not mentioned below, or further steps may be added.
[0095] In 405, UE 115-b can identify the communication configuration used for bearers including a first link and a second link. In some cases, the communication configuration can be based on RRC procedures, downlink control information, or a combination thereof. The first link can correspond to a first RAT or a first FR, and the second link can correspond to a second RAT or a second FR.
[0096] At 410, UE 115-b can identify packets for transmission via a bearer, and each packet can be associated with a sequence number (e.g., a PDCP sequence number). At 415, UE 115-b can receive a first uplink grant from base station 105-d, and this first uplink grant can correspond to a first uplink resource (e.g., a first link). At 420, UE 115-b can receive a second uplink grant from base station 105-c, and this second uplink grant can correspond to a second uplink resource (e.g., a second link). In some cases, the first and second grants can be received from the same base station 105, and each of these grants can correspond to a different cell or a different FR. In some other examples, the first base station can be different from the second base station, and each of these grants can correspond to a link.
[0097] At 425, UE 115-b can determine the association of a packet with the first uplink resource or the second uplink resource based on the packet's sequence number and the corresponding transmission time for the first and second uplink resources, or the completion time of the decoding process associated with the first and second uplink resources. In some examples, 425 can be performed before each symbol at the start of a PUSCH OTA. That is, whenever a PUSCH OTA begins, UE 115-b can consider each pending grant and determine the association of a pending packet (e.g., a packet in an RLC or PDCP buffer) with (e.g., one or more granted) uplink resources. UE 115-b can determine the corresponding completion time of the decoding process associated with the first and second uplink resources based on time-frequency parameters, downlink scheduling mode, uplink scheduling mode, frame structure, or any combination thereof. In some cases, UE 115-a can determine the completion time of decoding a packet associated with a first uplink resource, the completion time of decoding a packet associated with a second uplink resource, identify which uplink resources are associated with an earlier completion time, and associate the packet with the uplink resource associated with the earlier completion time.
[0098] At 430, UE 115-b can transmit a packet on a first uplink resource or a second uplink resource based on a determined association between one or more packets and the first uplink resource or the second uplink resource. In some cases, UE 115-b can transmit a first packet group based on an uplink resource associated with an earlier completion time and a second packet group based on an uplink resource associated with a later completion time. In some cases, the first packet group can be associated with a priority higher than that associated with the second packet group. In some additional or alternative cases, the first packet group can be associated with a group sequence number preceding the sequence number group associated with the second packet group. Ordering packet transmission based on uplink resources with completion times associated with the uplink resources can improve system efficiency.
[0099] Figure 5 A block diagram 500 of a device 505 supporting uplink traffic prioritization across multiple links is shown according to various aspects of this disclosure. Device 505 may be an example of various aspects of UE 115 as described herein. Device 505 may include a receiver 510, a communications manager 515, and a transmitter 520. Device 505 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0100] Receiver 510 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to uplink traffic prioritization across multiple links). This information can be transmitted to other components of device 505. Receiver 510 can be a reference... Figure 8 Examples of various aspects of the transceiver 820 described. The receiver 510 may utilize a single antenna or an array of antennas.
[0101] Communication manager 515 may identify a communication configuration for a bearer including a first link and a second link; identify one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource; transmit the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource; and receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link. Communication manager 515 may be an example of aspects of communication manager 810 described herein.
[0102] The communication manager 515 or its sub-components may be implemented in hardware, code executed by a processor (e.g., software or firmware), or any combination thereof. If implemented in code executed by a processor, the functionality of the communication manager 515 or its sub-components may be performed by a general-purpose processor, digital signal processor (DSP), application-specific integrated circuit (ASIC), field-programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described in this disclosure.
[0103] The communication manager 515 or its subcomponents may be physically located at various locations, including being distributed such that portions of the functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of this disclosure, the communication manager 515 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of this disclosure, the communication manager 515 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, transceivers, network servers, another computing device, one or more other components described in this disclosure, or combinations thereof.
[0104] Transmitter 520 can transmit signals generated by other components of device 505. In some examples, transmitter 520 may coexist with receiver 510 in a transceiver module. For example, transmitter 520 may be a reference... Figure 8 Examples of various aspects of the transceiver 820 described. The transmitter 520 may utilize a single antenna or an array of antennas.
[0105] Figure 6 A block diagram 600 of a device 605 supporting uplink traffic prioritization across multiple links is shown according to various aspects of this disclosure. Device 605 may be an example of various aspects of device 505 or UE 115 as described herein. Device 605 may include a receiver 610, a communication manager 615, and a transmitter 635. Device 605 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).
[0106] Receiver 610 can receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, and information related to uplink traffic prioritization across multiple links). This information can be transmitted to other components of device 605. Receiver 610 can be a reference... Figure 8 Examples of various aspects of the transceiver 820 described. The receiver 610 may utilize a single antenna or an array of antennas.
[0107] Communication manager 615 may be an example of aspects of communication manager 515 as described herein. Communication manager 615 may include configuration manager 620, group manager 625, and grant manager 630. Communication manager 615 may be an example of aspects of communication manager 810 as described herein.
[0108] Configuration Manager 620 can identify communication configurations used for bearers including the first link and the second link.
[0109] The packet manager 625 can identify one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource; and transmit the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource.
[0110] The grant manager 630 can receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link.
[0111] Transmitter 635 can transmit signals generated by other components of device 605. In some examples, transmitter 635 may coexist with receiver 610 in a transceiver module. For example, transmitter 635 may be a reference... Figure 8 Examples of various aspects of the transceiver 820 described. The transmitter 635 may utilize a single antenna or an array of antennas.
[0112] Figure 7 A block diagram 700 of a communication manager 705 supporting uplink traffic prioritization across multiple links, according to various aspects of this disclosure, is shown. The communication manager 705 may be an example of aspects of the communication manager 515, communication manager 615, or communication manager 810 described herein. The communication manager 705 may include a configuration manager 710, a packet manager 715, an authorization manager 720, a resource characteristic manager 725, a packet priority manager 730, and a scheduling mode manager 735. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).
[0113] Configuration Manager 710 can identify communication configurations used for bearers including the first link and the second link.
[0114] The packet manager 715 can identify one or more packets for transmission via the bearer, each of which is associated with a sequence number.
[0115] In some examples, the packet manager 715 may determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource.
[0116] In some examples, the packet manager 715 can transmit the one or more packets on the first uplink resource or the second uplink resource based on the determined association between the one or more packets and the first uplink resource or the second uplink resource.
[0117] In some cases, the sequence number corresponds to the Packet Data Convergence Protocol (PDCP) sequence number.
[0118] The grant manager 720 can receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link.
[0119] The resource characteristic manager 725 can identify the first characteristic set of the first uplink resource and the second characteristic set of the second uplink resource.
[0120] In some examples, the resource feature manager 725 can determine the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource based on the first feature set and the second feature set.
[0121] In some examples, the resource feature manager 725 can determine the corresponding timing of the first uplink resource and the second uplink resource based on a first feature set and a second feature set.
[0122] In some examples, the resource feature manager 725 may determine the association of one or more packets with the first uplink resource or the second uplink resource based on the corresponding timing of the first uplink resource and the second uplink resource.
[0123] In some examples, the resource characteristic manager 725 can determine the corresponding characteristics associated with the decoding of the first uplink resource and the second uplink resource by one or more base stations.
[0124] In some examples, the resource characteristic manager 725 can determine the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource based on the corresponding characteristic.
[0125] In some examples, the resource characteristics manager 725 can determine the corresponding received transmission mode for one or more base stations.
[0126] In some cases, the corresponding timing includes the corresponding start time or corresponding end time of the first uplink resource and the second uplink resource.
[0127] In some cases, the first and second characteristic sets include the corresponding subcarrier spacing, the corresponding transmission time interval, the corresponding uplink transmission start time, the corresponding uplink transmission length, or a combination thereof.
[0128] In some cases, one or more packets include a first packet with a first priority and a second packet with a second priority higher than the first priority. In some cases, the packet priority manager 730 may assign the second packet to a resource with a first completion time in the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource.
[0129] The scheduling mode manager 735 can determine the corresponding downlink scheduling mode for the first and second links.
[0130] In some examples, the scheduling mode manager 735 can determine the association of one or more packets with a first uplink resource or a second uplink resource based on the corresponding downlink scheduling mode.
[0131] In some examples, the scheduling mode manager 735 can identify the primary link in the first and second links based on the downlink scheduling mode, wherein the association of one or more packets with the first uplink resource or the second uplink resource is determined based on the primary link.
[0132] Figure 8 A diagram of a system 800 including device 805 supporting uplink traffic prioritization across multiple links, according to various aspects of this disclosure, is shown. Device 805 may be an example of device 505, device 605, or UE 115 as described herein, or a component including such devices. Device 805 may include components for bidirectional voice and data communication, including components for transmitting and receiving communications, including a communication manager 810, an I / O controller 815, a transceiver 820, an antenna 825, a memory 830, and a processor 840. These components may be in electronic communication via one or more buses (e.g., bus 845).
[0133] The communication manager 810 can identify a communication configuration for a bearer including a first link and a second link; identify one or more packets for transmission via the bearer, each of which can be associated with a sequence number; determine the association of the one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource; transmit the one or more packets on the first uplink resource or the second uplink resource according to the determined association of the one or more packets with the first uplink resource or the second uplink resource; and receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link.
[0134] The I / O controller 815 manages the input and output signals of the device 805. The I / O controller 815 can also manage peripheral devices not integrated into the device 805. In some cases, the I / O controller 815 may represent a physical connection or port to an external peripheral device. In some cases, the I / O controller 815 may utilize an operating system, such as... Or another known operating system. In other cases, I / O controller 815 may represent or interact with a modem, keyboard, mouse, touchscreen, or similar device. In some cases, I / O controller 815 may be implemented as part of a processor. In some cases, a user may interact with device 815 via I / O controller 805 or via hardware components controlled by I / O controller 815.
[0135] Transceiver 820 can communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, transceiver 820 can represent a wireless transceiver and can communicate bidirectionally with another wireless transceiver. Transceiver 820 may also include a modem to modulate packets and provide the modulated packets to the antenna for transmission, and to demodulate packets received from the antenna.
[0136] In some cases, a wireless device may include a single antenna 825. However, in other cases, the device may have more than one antenna 825, which may be able to transmit or receive multiple wireless transmissions concurrently.
[0137] Memory 830 may include random access memory (RAM) and read-only memory (ROM). Memory 830 may store computer-readable, computer-executable code 835, including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, memory 830 may include a basic input / output system (BIOS), which controls basic hardware or software operations, such as interaction with peripheral components or devices.
[0138] Processor 840 may include intelligent hardware devices (e.g., general-purpose processors, DSPs, CPUs, microcontrollers, ASICs, FPGAs, programmable logic devices, discrete gate or transistor logic components, discrete hardware components, or any combination thereof). In some cases, processor 840 may be configured to use a memory controller to operate a memory array. In other cases, the memory controller may be integrated into processor 840. Processor 840 may be configured to execute computer-readable instructions stored in memory (e.g., memory 830) to cause device 805 to perform various functions (e.g., functions or tasks supporting uplink traffic prioritization across multiple links).
[0139] Code 835 may include instructions for implementing various aspects of this disclosure, including instructions for supporting wireless communication. Code 835 may be stored in a non-transitory computer-readable medium, such as system memory or other types of memory. In some cases, code 835 may not be directly executed by processor 840, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.
[0140] Figure 9 A flowchart illustrating a method 900 for supporting uplink traffic prioritization across multiple links according to various aspects of this disclosure is shown. Operation of method 900 may be implemented by a UE 115 or its components as described herein. For example, operation of method 900 may be implemented by, as referred to... Figures 5 to 8 The described communication manager is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.
[0141] In 905, the UE can identify the communication configuration used for bearers including the first link and the second link. Operation of 905 can be performed according to the methods described herein. In some examples, aspects of the operation of 905 can be determined by referring to... Figures 5 to 8 The configuration manager described is used to execute this.
[0142] In 910, the UE can identify one or more packets for transmission via the bearer, each of which is associated with a sequence number. Operation of 910 can be performed according to the methods described herein. In some examples, aspects of the operation of 910 can be determined by reference to... Figures 5 to 8 The described group manager is used to execute this.
[0143] In step 915, the UE can receive a first grant of a first uplink resource on the first link and a second grant of a second uplink resource on the second link. The operation of step 915 can be performed according to the method described herein. In some examples, aspects of the operation of step 915 can be determined by reference to [reference needed]. Figures 5 to 8 The described permission manager is used to execute this.
[0144] In 920, the UE can determine the association of one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource. The operation of 920 can be performed according to the methods described herein. In some examples, aspects of the operation of 920 can be determined by referring to... Figures 5 to 8 The described group manager is used to execute this.
[0145] In step 925, the UE can transmit one or more packets on the first uplink resource or the second uplink resource based on the determined association between the one or more packets and the first uplink resource or the second uplink resource. Operation of step 925 can be performed according to the methods described herein. In some examples, aspects of operation of step 925 can be determined by referring to... Figures 5 to 8 The described group manager is used to execute this.
[0146] Figure 10 A flowchart illustrating a method 1000 for supporting uplink traffic prioritization across multiple links according to various aspects of this disclosure is shown. Operation of method 1000 may be implemented by a UE 115 or its components as described herein. For example, operation of method 1000 may be implemented by, as referred to... Figures 5 to 8 The described communication manager is used to perform this function. In some examples, the UE can execute a set of instructions to control the functional elements of the UE to perform the following functions. Alternatively or alternatively, the UE can use dedicated hardware to perform aspects of the following functions.
[0147] In 1005, the UE can identify the communication configuration used for bearers including the first link and the second link. The operation of 1005 can be performed according to the methods described herein. In some examples, aspects of the operation of 1005 can be determined by referring to... Figures 5 to 8 The configuration manager described is used to execute this.
[0148] In 1010, the UE can identify one or more packets for transmission via the bearer, each of which is associated with a sequence number. Operation of 1010 can be performed according to the methods described herein. In some examples, aspects of the operation of 1010 can be determined by reference to... Figures 5 to 8 The described group manager is used to execute this.
[0149] At 1015, the UE can receive a first grant of a first uplink resource for the first link and a second grant of a second uplink resource for the second link. The operation of 1015 can be performed according to the method described herein. In some examples, aspects of the operation of 1015 can be derived from, as referenced... Figures 5 to 8 The described permission manager is used to execute this.
[0150] In 1020, the UE can determine the association of one or more packets with the first uplink resource or the second uplink resource based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource. The operation of 1020 can be performed according to the methods described herein. In some examples, aspects of the operation of 1020 can be determined by referring to... Figures 5 to 8 The described group manager is used to execute this.
[0151] In step 1025, the UE can transmit one or more packets on the first uplink resource or the second uplink resource based on the determined association between the one or more packets and the first uplink resource or the second uplink resource. Operation of step 1025 can be performed according to the methods described herein. In some examples, aspects of operation of step 1025 can be determined as shown in reference... Figures 5 to 8 The described group manager is used to execute this.
[0152] At 1030, the UE can identify a first set of characteristics of the first uplink resource and a second set of characteristics of the second uplink resource. The operation of 1030 can be performed according to the method described herein. In some examples, aspects of the operation of 1030 can be determined by referring to... Figures 5 to 8 The resource properties manager described is used to execute this.
[0153] In step 1035, the UE can determine the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource based on the first feature set and the second feature set. The operation of step 1035 can be performed according to the method described herein. In some examples, aspects of the operation of step 1035 can be determined as described in reference to... Figures 5 to 8 The resource properties manager described is used to execute this.
[0154] In 1040, the UE can determine the corresponding timing of the first uplink resource and the second uplink resource based on the first feature set and the second feature set. The operation of 1040 can be performed according to the method described herein. In some examples, aspects of the operation of 1040 can be determined as described in reference... Figures 5 to 8 The resource properties manager described is used to execute this.
[0155] In step 1045, the UE can determine the association of one or more packets with the first uplink resource or the second uplink resource based on the corresponding timing of the first uplink resource and the second uplink resource. The operation of step 1045 can be performed according to the methods described herein. In some examples, aspects of the operation of step 1045 can be determined by referring to... Figures 5 to 8 The resource properties manager described is used to execute this.
[0156] It should be noted that the methods described in this paper describe possible implementations, and the operations and steps can be rearranged or otherwise modified, and other implementations are also possible. Furthermore, aspects from two or more methods can be combined.
[0157] While aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for illustrative purposes, and the terms LTE, LTE-A, LTE-A Pro, or NR may be used in most of the description, the techniques described herein can also be applied to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques can be applied to a variety of other wireless communication systems, such as Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.
[0158] The information and signals described herein can be represented using any of a wide variety of different techniques and methods. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or light particles, or any combination thereof.
[0159] The various illustrative boxes and components described herein can be implemented or executed using a general-purpose processor, DSP, ASIC, CPU, FPGA or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. The general-purpose processor may be a microprocessor, but in alternatives, the processor may be any processor, controller, microcontroller, or state machine. The processor may also be implemented as a combination of computing devices (e.g., a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors working in conjunction with a DSP core, or any other such configuration).
[0160] The functions described herein can be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, the functions can be stored or transmitted as one or more instructions or code on a computer-readable medium. Other examples and implementations fall within the scope of this disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software executed by a processor, hardware, firmware, hardwired, or any combination thereof. Features implementing the functions can also be physically located in various locations, including being distributed such that different parts of the function are implemented at different physical locations.
[0161] Computer-readable media includes both non-transient computer storage media and communication media, encompassing any medium that facilitates the transfer of a computer program from one location to another. Non-transient storage media can be any available medium accessible to a general-purpose or special-purpose computer. By way of example and not limitation, non-transient computer-readable media may include RAM, ROM, electrically erasable programmable ROM (EEPROM), flash memory, compact disc (CD) ROM or other optical disc storage, magnetic disk storage or other magnetic storage devices, or any other non-transient medium that can be used to carry or store desired program code in the form of instructions or data structures and is accessible to a general-purpose or special-purpose computer, or a general-purpose or special-purpose processor. Similarly, any connection is also legitimately referred to as computer-readable media. 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 technologies such as infrared, radio, and microwave, then that coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwave are included in the definition of computer-readable media. As used in this article, disk and disc include CDs, laser discs, optical discs, DVDs, floppy disks, and Blu-ray discs, where disks often magnetically reproduce data while discs optically reproduce data using lasers. Combinations of these media are also included within the scope of computer-readable media.
[0162] As used herein (including in the claims), the word "or" in an enumeration of items (e.g., an enumeration of items accompanied by phrases such as "at least one of" or "one or more of") indicates an inclusive enumeration, such that an enumeration of at least one of, for example, A, B, or C means A or B or C or AB or AC or BC or ABC (i.e., A and B and C). Similarly, as used herein, the phrase "based on" should not be interpreted as referring to a closed set of conditions. For example, an example step described as "based on condition A" may be based on both condition A and condition B without departing from the scope of this disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "at least partially based on".
[0163] In the accompanying drawings, similar components or features may have the same reference numerals. Furthermore, components of the same type may be distinguished by a dash following the reference numeral and a second reference numeral used to differentiate between similar components. If only the first reference numeral is used in the description, the description may apply to any of the similar components having the same first reference numeral, regardless of the second reference numeral or other subsequent reference numerals.
[0164] This document, illustrated with reference to the accompanying drawings, describes exemplary configurations but does not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "serving as an example, instance, or illustration" and does not imply "superior" or "outperforming" other examples. This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques may be practiced without these specific details. In some instances, known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.
[0165] The description provided herein is intended to enable those skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the universal principles defined herein can be applied to other variations without departing from the scope of this disclosure. Therefore, this disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A method for conducting wireless communication at a user equipment (UE), comprising: The identifier is used for communication configurations that include the bearers of the first and second links; Identifiers are used to transmit one or more packets via the bearer, each of the one or more packets being associated with a sequence number; Receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link; The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource; as well as The one or more packets are transmitted on the first uplink resource or the second uplink resource based on the determined association between the one or more packets and the first uplink resource or the second uplink resource.
2. The method of claim 1, further comprising: A first set of characteristics identifies the first uplink resource and a second set of characteristics identifies the second uplink resource; as well as The corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource is determined at least in part based on the first feature set and the second feature set.
3. The method of claim 2, further comprising: The timing of the first uplink resource and the second uplink resource is determined at least in part based on the first feature set and the second feature set; as well as The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the corresponding timing of the first uplink resource and the second uplink resource.
4. The method of claim 3, wherein the corresponding timing includes the corresponding start time or corresponding end time of the first uplink resource and the second uplink resource.
5. The method of claim 2, wherein the first feature set and the second feature set include a corresponding subcarrier interval, a corresponding transmission time interval, a corresponding uplink transmission start time, a corresponding uplink transmission length, or a combination thereof.
6. The method of claim 1, wherein the one or more groups include a first group having a first priority and a second group having a second priority higher than the first priority, the method further comprising: The second group is assigned to a resource having a first completion time among the corresponding completion times of the decoding process associated with the first uplink resource and the second uplink resource.
7. The method of claim 1, further comprising: Determine the corresponding characteristics associated with decoding the first uplink resource and the second uplink resource by one or more base stations; as well as The corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource is determined at least in part based on the corresponding characteristics.
8. The method of claim 7, wherein determining the corresponding characteristic associated with decoding the first uplink resource and the second uplink resource by the one or more base stations includes: Determine the corresponding reception transmission mode of the one or more base stations.
9. The method of claim 1, further comprising: Determine the corresponding downlink scheduling modes for the first link and the second link; as well as The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the corresponding downlink scheduling mode.
10. The method of claim 9, further comprising: The primary link in the first link and the second link is identified at least in part based on the downlink scheduling pattern, wherein the association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the primary link.
11. The method of claim 1, wherein the sequence number corresponds to a Packet Data Convergence Protocol (PDCP) sequence number.
12. An apparatus for conducting wireless communication at a user equipment (UE), comprising: processor; Memory coupled to the processor; as well as Instructions stored in the memory and executable by the processor to cause the device to perform the following operations: The identifier is used for communication configurations that include the bearers of the first and second links; Identifiers are used to transmit one or more packets via the bearer, each of the one or more packets being associated with a sequence number; Receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link; The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource; as well as The one or more packets are transmitted on the first uplink resource or the second uplink resource based on the determined association between the one or more packets and the first uplink resource or the second uplink resource.
13. The apparatus of claim 12, wherein the instructions are further executable by the processor to cause the apparatus to: A first set of characteristics identifying the first uplink resource and a second set of characteristics identifying the second uplink resource; and The corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource is determined at least in part based on the first feature set and the second feature set.
14. The apparatus of claim 13, wherein the instructions are further executable by the processor to cause the apparatus to: The timing of the first uplink resource and the second uplink resource is determined at least in part based on the first feature set and the second feature set; and The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the corresponding timing of the first uplink resource and the second uplink resource.
15. The apparatus of claim 14, wherein the corresponding timing includes the corresponding start time or corresponding end time of the first uplink resource and the second uplink resource.
16. The apparatus of claim 13, wherein the first set of characteristics and the second set of characteristics include a corresponding subcarrier interval, a corresponding transmission time interval, a corresponding uplink transmission start time, a corresponding uplink transmission length, or a combination thereof.
17. The apparatus of claim 12, wherein the one or more groups comprise a first group having a first priority and a second group having a second priority higher than the first priority, and the instructions are further executable by the processor to cause the apparatus to: The second group is assigned to a resource having a first completion time among the corresponding completion times of the decoding process associated with the first uplink resource and the second uplink resource.
18. The apparatus of claim 12, wherein the instructions are further executable by the processor to cause the apparatus to: Determine the corresponding characteristics associated with decoding of the first uplink resource and the second uplink resource by one or more base stations; and The corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource is determined at least in part based on the corresponding characteristics.
19. The apparatus of claim 18, wherein instructions for determining the corresponding characteristics associated with decoding of the first uplink resource and the second uplink resource by the one or more base stations are executable by the processor to cause the apparatus to: Determine the corresponding reception transmission mode of the one or more base stations.
20. The apparatus of claim 12, wherein the instructions are further executable by the processor to cause the apparatus to: Determine the corresponding downlink scheduling modes for the first link and the second link; and The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the corresponding downlink scheduling mode.
21. The apparatus of claim 20, wherein the instructions are further executable by the processor to cause the apparatus to: The primary link in the first link and the second link is identified at least in part based on the downlink scheduling pattern, wherein the association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the primary link.
22. The apparatus of claim 12, wherein the sequence number corresponds to a Packet Data Convergence Protocol (PDCP) sequence number.
23. An apparatus for conducting wireless communication at a user equipment (UE), comprising: A means for identifying communication configurations for bearers including a first link and a second link; Means for identifying one or more packets for transmission via the bearer, each of the one or more packets being associated with a sequence number; A means for receiving a first grant of a first uplink resource of the first link and a second grant of a second uplink resource of the second link; A means for determining the association of the one or more packets with the first uplink resource or the second uplink resource based at least in part on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource. as well as A means for transmitting the one or more packets on the first uplink resource or the second uplink resource based on a determined association between the one or more packets and the first uplink resource or the second uplink resource.
24. The apparatus of claim 23, further comprising: A means for identifying a first set of characteristics of the first uplink resource and a second set of characteristics of the second uplink resource; as well as A means for determining, at least in part, the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource based on the first feature set and the second feature set.
25. The apparatus of claim 24, further comprising: A means for determining the corresponding timing of the first uplink resource and the second uplink resource based at least in part on the first feature set and the second feature set; as well as A means for determining the association of the one or more packets with the first uplink resource or the second uplink resource based at least in part on the corresponding timing of the first uplink resource and the second uplink resource.
26. The device of claim 25, wherein the corresponding timing includes the corresponding start time or corresponding end time of the first uplink resource and the second uplink resource.
27. The device of claim 24, wherein the first set of characteristics and the second set of characteristics include a corresponding subcarrier interval, a corresponding transmission time interval, a corresponding uplink transmission start time, a corresponding uplink transmission length, or a combination thereof.
28. The device of claim 23, wherein the one or more packets include a first packet having a first priority and a second packet having a second priority higher than the first priority, the device further comprising: A means for assigning the second packet to a resource having a first completion time among the corresponding completion times of the decoding process associated with the first uplink resource and the second uplink resource.
29. The apparatus of claim 23, further comprising: A means for determining a corresponding characteristic associated with decoding of the first uplink resource and the second uplink resource by one or more base stations; as well as A means for determining, at least in part, the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource based on the corresponding characteristics.
30. A non-transient computer-readable medium storing code for wireless communication at a user equipment (UE), the code including instructions executable by a processor for the following operations: The identifier is used for communication configurations that include the bearers of the first and second links; Identifiers are used to transmit one or more packets via the bearer, each of the one or more packets being associated with a sequence number; Receive a first grant for the first uplink resource of the first link and a second grant for the second uplink resource of the second link; The association of the one or more packets with the first uplink resource or the second uplink resource is determined at least in part based on the sequence number of the one or more packets and the corresponding completion time of the decoding process associated with the first uplink resource and the second uplink resource; as well as The one or more packets are transmitted on the first uplink resource or the second uplink resource based on the determined association between the one or more packets and the first uplink resource or the second uplink resource.