Group Scheduling Requests and Resource Assignments

Abstract

Methods, systems, and apparatus for wireless communications are described. A user equipment (UE) may transmit a scheduling request to a base station using dedicated uplink resources. The UE may transmit the scheduling request to indicate that a group of UEs requests uplink resources for uplink data transmission. As a result, the UE may receive downlink control information from the base station, the downlink control information including corresponding uplink resources allocated to the UE based on the scheduling request. The UE may transmit uplink data to the base station using the allocated uplink resources.

Description

[0001] Cross-references

[0002] This patent application claims priority to International Patent Application No. PCT / CN2019 / 121435, entitled “GROUP SCHEDULING REQUESTS AND RESOURCE ASSIGNMENTS” filed by DAI et al. on November 28, 2019, which is assigned to the assignee of this application and is incorporated herein by reference in its entirety. Technical Field

[0003] The following relates generally to wireless communications, and more particularly to group scheduling requests and resource assignments.

[0004] background

[0005] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcasting, etc. These systems may be able to 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, advanced LTE (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 may use 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 base station or network access node simultaneously supporting the communication of multiple communication devices, which may be referred to as user equipment (UE) in addition.

[0006] Some wireless communication systems may support resource assignment, where a network device (such as a UE) sends a request message to a base station to receive an indication of a set of uplink resources for transmitting uplink data. The base station may provide a scheduling assignment or uplink grant to the UE based on the request.

[0007] Overview

[0008] The described techniques relate to improved methods, systems, devices, and apparatuses that support group scheduling requests and resource assignments.In general, the described techniques are used to enable user equipment (UE) and base stations to reduce signaling overhead and latency associated with group scheduling of UEs within a network.

[0009] In some examples, a base station may identify a dedicated uplink resource set that can be used to transmit a scheduling request associated with group scheduling, and may transmit an indication of uplink resource allocation for uplink data transmission to a user equipment (UE) (e.g., via downlink control information (DCI)). The UE may identify a dedicated uplink resource set for a scheduling request associated with group scheduling based on receiving the indication from the base station, and may use the dedicated uplink resources to transmit a scheduling request (SR) to the base station. In some examples, the UE may transmit the SR to indicate that the UE group requests uplink resources for uplink data transmission. The base station may receive the SR from the UE, and may determine a group common DCI (GC-DCI) indicating uplink resources allocated to the UE based on the SR. The base station may transmit the GC-DCI to the UE, which may include corresponding uplink resources allocated to the UE based on the SR. The UE may use the allocated uplink resource set to transmit uplink data to the base station.

[0010] A method of wireless communication at a UE is described. The method may include: transmitting a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; receiving downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; and transmitting uplink data to the base station using the uplink resources allocated to the UE.

[0011] An apparatus for wireless communication at a UE is described. The apparatus may include at least one processor, a memory coupled to the at least one processor (e.g., operatively, communicatively, functionally, electronically, electrically), and instructions stored in the memory. The instructions may be executable by the at least one processor to cause the apparatus to: transmit a scheduling request to a base station, the scheduling request including an indication of uplink resources requested for data transmission by a group of UEs; receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; and transmit uplink data to the base station using the uplink resources allocated to the UE.

[0012] Another apparatus for wireless communication at a UE is described. The apparatus may include means for transmitting a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; receiving downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; and transmitting uplink data to the base station using the uplink resources allocated to the UE.

[0013] A non-transitory computer-readable medium storing code for wireless communication at a UE is described. The code may include instructions executable by at least one processor for the following operations: transmitting a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; receiving downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; and transmitting uplink data to the base station using the uplink resources allocated to the UE.

[0014] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: identifying a dedicated uplink resource set for a scheduling request associated with group scheduling, wherein the scheduling request can be transmitted to a base station using at least one scheduling request resource in the identified dedicated scheduling request resource set.

[0015] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, identifying a dedicated uplink resource set for a scheduling request associated with group scheduling may include operations, features, apparatus, or instructions for the following actions: receiving an RRC message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling.

[0016] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for including a group scheduling indication in a scheduling request.

[0017] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the group scheduling indication includes a set of one or more scheduling mode indicator bits associated with group scheduling.

[0018] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: generating a group scheduling indication by applying a cyclic shift associated with the group scheduling to a base sequence; wherein the scheduling request can be transmitted based on the base sequence and the cyclic shift.

[0019] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: generating a group scheduling indication by multiplying a base sequence by a complex-valued multiplier associated with group scheduling; wherein the scheduling request can be transmitted based on the base sequence and the complex-valued multiplier.

[0020] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the group scheduling indication includes an identifier of the UE group.

[0021] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the downlink control information includes group common downlink control information indicating uplink resource assignments for all UEs in the group.

[0022] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: determining uplink resources allocated to a UE based on uplink resource assignments for all UEs in a group and an index of the UE.

[0023] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, receiving group common downlink control information may further include operations, features, apparatus, or instructions for the following actions: descrambling a set of cyclic redundancy check bits based on a group common radio network temporary identifier (GC-RNTI).

[0024] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the group common downlink control information indicates a multiplexing scheme including a multi-slot scheduling scheme, wherein each UE in a group of UEs may be allocated uplink resources from a different time slot assigned for uplink resources for all UEs in the group.

[0025] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the group common downlink control information indicates a multiplexing scheme including a multi-user multiple-input multiple-output spatial multiplexing scheme, wherein each UE in the UE group may be associated with a separate orthogonal code domain multiplexed demodulation reference signal.

[0026] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for transmitting a buffer status report on a portion of uplink resources allocated to the UE.

[0027] A method of wireless communication at a base station is described. The method may include: receiving a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; determining downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; transmitting the downlink control information to the UE; and receiving uplink data from the UE on the uplink resources allocated to the UE.

[0028] An apparatus for wireless communication at a base station is described. The apparatus may include at least one processor, a memory coupled to the at least one processor (e.g., operatively, communicatively, functionally, electronically, electrically), and instructions stored in the memory. The instructions may be executable by the at least one processor to cause the apparatus to: receive a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; determine downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; transmit the downlink control information to the UE; and receive uplink data from the UE on the uplink resources allocated to the UE.

[0029] Another apparatus for wireless communication at a base station is described. The apparatus may include means for: receiving a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; determining downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; transmitting the downlink control information to the UE; and receiving uplink data from the UE on the uplink resources allocated to the UE.

[0030] A non-transitory computer-readable medium storing code for wireless communication at a base station is described. The code may include instructions executable by at least one processor for the following operations: receiving a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; determining downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; transmitting the downlink control information to the UE; and receiving uplink data from the UE on the uplink resources allocated to the UE.

[0031] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for identifying a dedicated uplink resource set for a scheduling request associated with group scheduling, transmitting an indication of the dedicated uplink resource set for the scheduling request associated with group scheduling to a UE, and receiving a scheduling request from the UE on at least one scheduling request resource in the identified dedicated scheduling request resource set.

[0032] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, transmitting an indication of a dedicated uplink resource set for a scheduling request associated with group scheduling may include operations, features, apparatus, or instructions for the following actions: transmitting an RRC message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling.

[0033] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving a group scheduling indication in a scheduling request.

[0034] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, the group scheduling indication includes a set of one or more scheduling mode indicator bits associated with group scheduling.

[0035] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatus, or instructions for the following actions: receiving a scheduling request based on a base sequence applied to the scheduling request at a UE and a cyclic shift associated with group scheduling.

[0036] Some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein may further include operations, features, apparatuses, or instructions for the following actions: receiving a scheduling request based on a base sequence used at a UE to generate group scheduling information and a complex-valued multiplier associated with group scheduling.

[0037] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the group scheduling indication includes an identifier of the UE group.

[0038] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the downlink control information includes group common downlink control information indicating uplink resource assignments for all UEs in the group.

[0039] In some examples of the methods, apparatuses (devices), and non-transitory computer-readable media described herein, uplink resources allocated to a UE may be indicated based on an uplink resource assignment for all UEs in a group and an index of the UE.

[0040] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, transmitting group common downlink control information may further include operations, features, apparatus, or instructions for the following actions: scrambling a set of cyclic redundancy check bits based on a group common radio network temporary identifier (GC-RNTI).

[0041] In some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein, the group common downlink control information indicates a multiplexing scheme including a multi-slot scheduling scheme, wherein each UE in a group of UEs may be allocated uplink resources from a different time slot assigned for uplink resources for all UEs in the group.

[0042] In some examples of the methods, apparatuses, and non-transitory computer-readable media described herein, the group common downlink control information indicates a multiplexing scheme including a multi-user multiple-input multiple-output spatial multiplexing scheme, wherein each UE in the UE group may be associated with a separate orthogonal code domain multiplexed demodulation reference signal.

[0043] Some examples of the methods, apparatus (devices), and non-transitory computer-readable media described herein may further include operations, features, means, or instructions for receiving a buffer status report on a portion of uplink resources allocated to the UE. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1

[0013] An example of a wireless communication system supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is illustrated.

[0046] Figure 2

[0013] An example of a wireless communication system supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is illustrated.

[0047] Figure 3A and 3B An example of a multiplexing scheme supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is illustrated.

[0048] Figure 4 An example of a UE group configuration supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is illustrated.

[0049] Figure 5 An example of a process flow diagram supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is illustrated.

[0050] Figure 6 and 7 A block diagram of an apparatus supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown.

[0051] Figure 8 A block diagram of an apparatus supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown.

[0052] Fig. 9 A diagram of a system including devices supporting group scheduling requests and resource assignments is shown in accordance with aspects of the present disclosure.

[0053] Fig.10 and 11 A block diagram of an apparatus supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown.

[0054] Fig.12 A block diagram of an apparatus supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown.

[0055] Fig.13 A diagram of a system including devices supporting group scheduling requests and resource assignments is shown in accordance with aspects of the present disclosure.

[0056] Figures 14 to 18 A flow chart illustrating a method of supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown.

[0057] Detailed Description

[0058] In some wireless communication systems, devices such as user equipment (UE) can be grouped together based on various common parameters such as spatial proximity, device type, device capabilities, etc. For example, a UE group can be a group of cellular devices or video surveillance UEs that are grouped together based on the close proximity of the devices. In some cases, the UE group can coordinate among themselves using several different techniques, including higher-level signaling from other network devices (e.g., via scheduling from a base station), or by using device-to-device or sidelink communications within the group.

[0059] During operation, one or more UEs within a UE group may identify uplink data to be transmitted to a base station based on a detection event (e.g., a monitoring event or a triggering event). In some cases, each UE within the group may request resources to transmit uplink data to the network at the same time (e.g., in the same period or group transmission). According to some techniques, each UE within a UE group may be configured for individual UE scheduling, wherein each UE requests resources by sending a scheduling request (SR) to the network. However, such individual UE scheduling between each UE and the network may result in increased uplink and downlink control signaling overhead, increased latency, and conflicts between UE transmissions.

[0060] Using the techniques described in this disclosure, UEs in a group of UEs may send a scheduling request for the group of UEs to a base station of the network, and the base station may reply with an uplink resource grant for the entire group. Subsequently, each UE in the group that has data to transmit may transmit uplink data on a portion of the resources allocated to the entire group.

[0061] Various aspects of the present disclosure are initially described in the context of a wireless communication system. For example, various aspects of the present disclosure may be performed by various network devices, such as UEs and base stations described herein. Various aspects of the present disclosure are further illustrated and described by and with reference to apparatus diagrams, system diagrams, and flow diagrams related to group scheduling requests and resource assignments.

[0062] Figure 1 An example of a wireless communication system 100 supporting group scheduling requests and resource assignments according to various aspects of the present disclosure is illustrated. 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 communications, ultra-reliable (e.g., mission-critical) communications, low latency communications, communications with low-cost and low-complexity devices, or any combination thereof.

[0063] The base stations 105 may be dispersed throughout a geographic area to form the wireless communication system 100, and may be different forms of devices or devices with different capabilities. The base stations 105 and the UEs 115 may communicate wirelessly via one or more communication links 125. Each base station 105 may provide a coverage area 110 over which the UEs 115 and the base stations 105 may establish one or more communication links 125. The coverage area 110 may be an example of a geographic area over which the base stations 105 and the UEs 115 may support communication of signals according to one or more radio access technologies.

[0064] The UEs 115 may be dispersed throughout the coverage area 110 of the wireless communication system 100, and each UE 115 may be stationary or mobile, or stationary and mobile at different times. The UEs 115 may be different forms of devices or devices with different capabilities. Figure 1 Some example UEs 115 are illustrated in FIG. 1. The UEs 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, base stations 105, or network equipment (e.g., core network nodes, relay devices, integrated access and backhaul (IAB) nodes, or other network equipment), such as Figure 1 as shown in .

[0065] Each base station 105 may communicate with the core network 130 or with each other or both. For example, the 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). The base stations 105 may communicate with each other directly (e.g., directly between the base stations 105) or indirectly (e.g., via the core network 130), or directly and indirectly on the backhaul link 120 (e.g., via X2, Xn, or other interfaces). In some examples, the backhaul link 120 may be or include one or more wireless links.

[0066] One or more of the base stations 105 described herein may include or may be referred to by a person of ordinary skill in the art as a base transceiver station, a radio base station, an access point, a radio transceiver, a B node, an evolved B node (eNB), a next generation B node or a gigabit B node (any of which may be referred to as a gNB), a home B node, a home evolved B node, or other suitable terminology.

[0067] UE 115 may include or may be referred to as a mobile device, a wireless device, a remote device, a handheld device, or a subscriber device, or some other suitable terminology, where a "device" may also be referred to as a unit, a station, a terminal, a client, or the like. UE 115 may also include or may be referred to as a personal electronic device, such as: a cellular phone, a personal digital assistant (PDA), a multimedia / entertainment device (e.g., a radio, an MP3 player, a video device), a camera, a gaming device, a navigation / positioning device (e.g., a GNSS (Global Navigation Satellite System) device based on, for example, GPS (Global Positioning System), Beidou, GLONASS or Galileo, ground-based equipment, etc.), a tablet computer, a laptop computer, a personal computer, a netbook, a smartbook, a personal computer, a smart device, a wearable device (e.g., a smart watch, smart clothing, smart glasses, virtual reality goggles, a smart wristband, smart jewelry (e.g., a smart ring, a smart bracelet)), a drone, a robot / robotic device, a vehicle, a vehicle-mounted device, a meter (e.g., a parking meter, an electricity meter, a gas meter, a water meter), a monitor, a gas pump, an appliance (e.g., a kitchen appliance, a washing machine, a dryer), a location tag, a medical / health care device, an implant, a sensor / actuator, a display, or any other suitable device configured to communicate via a wireless or wired medium. In some examples, UE 115 may include or be referred to as a wireless local loop (WLL) station, an Internet of Things (IoT) device, an Internet of Everything (IoE) device, or a machine type communication (MTC) device, etc., which may be implemented in various objects such as electrical appliances or vehicles, meters, etc.

[0068] The UE 115 described herein may be capable of communicating with various types of devices, such as other UEs 115, which may sometimes act as relays, as well as base stations 105 and network equipment including macro eNBs or gNBs, small cell eNBs or gNBs, relay base stations, etc. Figure 1 as shown in .

[0069] The UE 115 and the base station 105 may communicate wirelessly with each other via one or more communication links 125 on one or more carriers. The term "carrier" may refer to a set of radio frequency spectrum resources having a defined physical layer structure for supporting the communication link 125. For example, a carrier for the communication link 125 may include a portion of a radio frequency spectrum band (e.g., a bandwidth portion (BWP)) that operates 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 for coordinating carrier operations, user data, or other signaling. The wireless communication system 100 may support the use of carrier aggregation or multi-carrier operation to communicate with the UE 115. The 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.

[0070] In some examples (e.g., in a carrier aggregation configuration), a carrier may also have acquisition signaling or control signaling that coordinates the operation of other carriers. A 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. A carrier may operate in a standalone mode in which initial acquisition and connection may be made by UE 115 via the carrier, or a carrier may operate in a non-standalone mode in which a connection is anchored using a different carrier (e.g., a different carrier of the same or different radio access technology).

[0071] The communication link 125 shown in the wireless communication system 100 may include an uplink transmission from the UE 115 to the base station 105, or a downlink transmission from the base station 105 to the UE 115. A carrier may carry downlink or uplink communications (e.g., in an FDD mode), or may be configured to carry both downlink and uplink communications (e.g., in a TDD mode).

[0072] A carrier may be associated with a particular bandwidth of a radio frequency spectrum, and in some examples, the carrier bandwidth may be referred to as a "system bandwidth" of the carrier or wireless communication system 100. For example, the carrier bandwidth may be one of several determined bandwidths (e.g., 1.4, 3, 5, 10, 15, 20, 40, or 80 megahertz (MHz)) of a carrier of a particular radio access technology. Devices (e.g., base stations 105, UEs 115, or both) of the wireless communication system 100 may have a hardware configuration that supports communications on a particular carrier bandwidth, or may be configurable to support communications on one of 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 communications via carriers associated with multiple carrier bandwidths. In some examples, each served UE 115 may be configured to operate on a portion (e.g., subband, BWP) or all of a carrier bandwidth.

[0073] 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 spread OFDM (DFT-S-OFDM)). In a system using MCM technology, a resource element may include a code element period (e.g., the duration of a modulation code element) and a subcarrier, where the code element period and the 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 coding rate of the modulation scheme, or both). Thus, the more resource elements received by UE 115 and the higher the order of the modulation scheme, the higher the data rate of UE 115 can be. Wireless communication resources may refer to a combination of radio frequency spectrum resources, time resources, and spatial resources (e.g., spatial layers or beams), and the use of multiple spatial layers may further improve the data rate or data integrity of communication with UE 115.

[0074] One or more parameter designs for a carrier may be supported, where the parameter designs may include subcarrier spacing (Δf) and cyclic prefixes. A carrier may be divided into one or more BWPs with the same or different parameter designs. In some examples, a UE 115 may be configured with multiple BWPs. In some examples, a single BWP for a carrier may be active at a given time, and communications for a UE 115 may be limited to the one or more active BWPs.

[0075] The time interval of the base station 105 or the UE 115 can be expressed as a multiple of a basic time unit, and the basic time unit can be, for example, a sampling period T s =1 / (Δf max ·N f ) seconds, where Δf max It can represent the maximum supported subcarrier spacing, and Nf The maximum supported discrete Fourier transform (DFT) size may be indicated. Time intervals of the communication resources may be organized according to radio frames, each having a specified duration (e.g., 10 milliseconds (ms)). Each radio frame may be identified by a system frame number (SFN) (e.g., ranging from 0 to 1023).

[0076] Each frame may include a plurality of consecutively numbered subframes or time slots, and each subframe or time slot may have the same duration. In some examples, a frame may be divided into subframes (e.g., in the time domain), and each subframe may be further divided into a number of 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 a number of code element periods (e.g., depending on the length of the cyclic prefix added before each code element period). In some wireless communication systems 100, a time slot may be further divided into a plurality of mini-time slots containing one or more code elements. Excluding the cyclic prefix, each code element period may contain one or more (e.g., N f The duration of a symbol period may depend on the subcarrier spacing or the operating band.

[0077] A subframe, slot, mini-slot, or symbol may be the smallest scheduling unit (e.g., in the time domain) of the wireless communication system 100 and may be referred to as a transmission time interval (TTI). In some examples, the TTI duration (e.g., the number of symbol periods in a TTI) may be variable. Additionally or alternatively, the smallest scheduling unit of the wireless communication system 100 may be dynamically selected (e.g., in bursts of shortened TTIs (sTTIs)).

[0078] Physical channels may be multiplexed on a carrier according to various techniques. Physical control channels and physical data channels may be multiplexed on a downlink carrier, for example, using one or more of a time division multiplexing (TDM) technique, a frequency division multiplexing (FDM) technique, or a hybrid TDM-FDM technique. A control region (e.g., a control resource set (CORESET)) for a physical control channel may be defined by a number of symbol periods and may extend across a system bandwidth or a subset of a system bandwidth of a carrier. One or more control regions (e.g., CORESETs) may be configured for a set of UEs 115. For example, one or more of the UEs 115 may monitor or search a control region for control information according to one or more search space sets, and each search space set may include one or more control channel candidates in one or more aggregation levels arranged in a cascaded manner. An aggregation level for a control channel candidate may refer to the number of control channel resources (e.g., control channel elements (CCEs)) associated with coded information for a control information format having a given payload size. The search space sets may include a common search space set configured for transmitting control information to multiple UEs 115 and a UE-specific search space set for transmitting control information to a specific UE 115 .

[0079] Each base station 105 may provide communication coverage via one or more cells (e.g., macro cells, small cells, hot spots, or other types of cells, or any combination thereof). The term "cell" may refer to a logical communication entity used to communicate with a base station 105 (e.g., on a carrier), and may be associated with an identifier (e.g., a physical cell identifier (PCID), a virtual cell identifier (VCID), or other) used to distinguish adjacent cells. In some examples, a cell may also refer to a geographic coverage area 110 or a portion of a geographic coverage area 110 (e.g., a sector) on which a logical communication entity operates. The range of such a cell may range from a smaller area (e.g., a structure, a subset of a structure) to a larger area depending on various factors (such as the capabilities of the base station 105). For example, a cell may be or include a building, a subset of a building, or an external space between or overlapping a geographic coverage area 110, as well as other examples.

[0080] A macro cell generally covers a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access to UEs 115 that have service subscriptions with a network provider that supports the macro cell. A small cell may be associated with a lower power base station 105 (compared to a macro cell), and the small cell may operate in the same or different (e.g., licensed, unlicensed) frequency band as the macro cell. A small cell 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), UEs 115 associated with users in a home or office). A base station 105 may support one or more cells and may also support communications on one or more cells using one or more component carriers.

[0081] In some examples, a carrier may support multiple cells, and different cells may be configured according to different protocol types (e.g., MTC, narrowband IoT (NB-IoT), enhanced mobile broadband (eMBB)) that may provide access to different types of devices.

[0082] In some examples, base stations 105 may be mobile and thus provide communication coverage for 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. The wireless communication system 100 may include, for example, a heterogeneous network in which different types of base stations 105 provide coverage for various geographic coverage areas 110 using the same or different radio access technologies.

[0083] The wireless communication system 100 may support synchronous or asynchronous operation. For synchronous operation, the base stations 105 may have similar frame timing, and transmissions from different base stations 105 may be approximately aligned in time. For asynchronous operation, the base stations 105 may have different frame timing, and transmissions from different base stations 105 may not be aligned in time in some examples. The techniques described herein may be used for synchronous or asynchronous operation.

[0084] Some UEs 115, such as MTC or IoT devices, may be low-cost or low-complexity devices and may provide automated communication between machines (e.g., via machine-to-machine (M2M) communication). M2M communication or MTC may refer to data communication technology that allows devices to communicate with each other or with a base station 105 without human intervention. In some examples, M2M communication or MTC may include communication from devices that integrate sensors or meters to measure or capture information and relay such information to a central server or application that utilizes the information or presents the information to a person interacting with the application. Some UEs 115 may be designed to collect information or implement automated behavior of machines or other devices. Examples of applications for MTC devices include: smart metering, inventory monitoring, water level monitoring, equipment monitoring, health care monitoring, field survival monitoring, weather and geographic event monitoring, queue management and tracking, remote security sensing, physical access control, and transaction-based commercial charging. In one aspect, the technology disclosed herein may be applicable to MTC or IoT UEs. MTC or IoT UE may include MTC / enhanced MTC (eMTC, also known as CAT-M, Cat M1) UE, NB-IoT (also known as CAT NB1) UE, and other types of UE. eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (further enhanced eMTC), mMTC (massive MTC), and NB-IoT may include eNB-IoT (enhanced NB-IoT) and FeNB-IoT (further enhanced NB-IoT).

[0085] Some UEs 115 may be configured to employ a reduced power consumption mode of operation, 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 may be performed with a reduced peak rate. Other power saving techniques for UE 115 include entering a power saving deep sleep mode when not engaged in active communications, operating on a limited bandwidth (e.g., according to narrowband communications), or a combination of these techniques. For example, some UEs 115 may be configured to operate using a narrowband protocol type that is associated with a defined portion or range (e.g., a subcarrier or resource block (RB) set) within a carrier, within a guard band of a carrier, or outside a carrier.

[0086] The wireless communication system 100 may be configured to support ultra-reliable communication or low latency communication or various combinations thereof. For example, the 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 critical functions (e.g., mission-critical functions). Ultra-reliable communication may include private communication or group communication, and may be supported by one or more mission-critical services (such as mission-critical push-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 commercial applications. The terms ultra-reliable, low latency, critical mission, and ultra-reliable low latency may be used interchangeably herein.

[0087] In some examples, UE 115 may also be able to communicate directly with other UE 115 over a device-to-device (D2D) communication link 135 (e.g., using a peer-to-peer (P2P) or D2D protocol). One or more UEs 115 utilizing D2D communication may be within a geographic coverage area 110 of a base station 105. Other UEs 115 in such a group may be outside the geographic coverage area 110 of the base station 105, or may not be able to receive transmissions from the base station 105 for other reasons. In some examples, each group of UEs 115 communicating via D2D communication may utilize a one-to-many (1:M) system, wherein each UE 115 transmits to each other UE 115 in the group. In some examples, the base station 105 facilitates the scheduling of resources for D2D communication. In other cases, D2D communication is performed between each UE 115 without involving the base station 105.

[0088] In some systems, the D2D communication link 135 can be an example of a communication channel (such as a sidelink communication channel) between vehicles (e.g., UE 115). In some examples, the vehicles can communicate using vehicle-to-everything (V2X) communications, vehicle-to-vehicle (V2V) communications, or some combination of these communications. The vehicles can signal information related to traffic conditions, signal scheduling, weather, safety, emergency situations, or any other information related to the V2X system. In some examples, vehicles in the V2X system can communicate with roadside infrastructure (such as roadside units), or with the network, or both, using vehicle-to-network (V2N) communications via one or more network nodes (e.g., base station 105).

[0089] The core network 130 may provide user authentication, access authorization, tracking, Internet Protocol (IP) connectivity, and other access, routing, or mobility functions. The core network 130 may be an evolved packet core (EPC) or a 5G core (5GC), and the EPC or 5GC may include at least one control plane entity (e.g., a mobility management entity (MME), an 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), a packet data network (PDN) gateway (P-GW), or a user plane function (UPF)) for routing packets or interconnecting to an external network. The control plane entity may manage non-access stratum (NAS) functions, such as mobility, authentication, and bearer management of UE 115 served by a base station 105 associated with the core network 130. User IP packets may be delivered via a user plane entity, which may provide IP address allocation and other functions. The user plane entity may be connected to a network operator IP service 150. Operator IP services 150 may include access to the Internet, an intranet, an IP Multimedia Subsystem (IMS), or packet-switched streaming services.

[0090] Some network devices (such as base stations 105) may include subcomponents, such as access network entities 140, which may be examples of access node controllers (ANCs). 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 radio heads, smart radio heads, or transmission / reception points (TRPs). 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 heads and ANCs) or merged into a single network device (e.g., base station 105).

[0091] The wireless communication system 100 may operate using one or more frequency bands, typically in the range of 300 megahertz (MHz) to 300 gigahertz (GHz). In general, the 300 MHz to 3 GHz region is referred to as the ultra-high frequency (UHF) region or decimeter band because the wavelengths range from about 1 decimeter to 1 meter long. UHF waves may be blocked or redirected by buildings and environmental features, but these waves may penetrate various structures sufficiently for macro cells to provide service to UEs 115 located indoors. Transmissions using UHF waves may be associated with smaller antennas and shorter ranges (e.g., less than 100 kilometers) than transmissions using smaller frequencies and longer waves in the high frequency (HF) or very high frequency (VHF) portions of the spectrum below 300 MHz.

[0092] The wireless communication system 100 may also operate in a super high frequency (SHF) zone using a frequency band from 3 GHz to 30 GHz (also known as a centimeter band) or in an extremely high frequency (EHF) zone of a spectrum (e.g., from 30 GHz to 300 GHz) (also known as a millimeter band). In some examples, the wireless communication system 100 may support millimeter wave (mmW) communications between UE 115 and base station 105, and the EHF antenna of the corresponding device may be smaller and more closely spaced than the UHF antenna. In some examples, this may facilitate the use of antenna arrays within the device. However, the propagation of EHF transmissions may be subject to even greater atmospheric attenuation and a shorter range than SHF or UHF transmissions. The technology disclosed herein may be adopted across transmissions using one or more different frequency zones, and the use of frequency bands specified across these frequency zones may vary by country or regulatory agency.

[0093] The wireless communication system 100 may utilize both licensed and unlicensed radio frequency spectrum bands. For example, the wireless communication system 100 may employ licensed assisted access (LAA), LTE unlicensed (LTE-U) radio access technology, or NR technology in an unlicensed band (such as the 5 GHz Industrial, Scientific, and Medical (ISM) band). When operating in an unlicensed radio frequency spectrum band, devices (such as base stations 105 and UEs 115) may employ carrier sensing for conflict detection and avoidance. In some examples, operations in an unlicensed band may be based on a carrier aggregation configuration (e.g., LAA) in coordination with component carriers operating in a licensed band. Operations in an unlicensed spectrum may include downlink transmissions, uplink transmissions, P2P transmissions, or D2D transmissions, among others.

[0094] The base station 105 or UE 115 may be equipped with multiple antennas, which can be used to employ technologies such as transmit diversity, receive diversity, multiple-input multiple-output (MIMO) communications, or beamforming. The antennas of the base station 105 or UE 115 may be located in one or more antenna arrays or antenna panels that can support MIMO operations or transmit or receive beamforming. For example, one or more base station antennas or antenna arrays may be co-located at an antenna assembly (such as an antenna tower). In some examples, the antennas or antenna arrays associated with the base station 105 may be located at different geographical locations. The base station 105 may have an antenna array having antenna ports of several rows and columns that the base station 105 can use to support beamforming for communications with the UE 115. Similarly, the 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.

[0095] The base station 105 or UE 115 can use MIMO communication to utilize multipath signal propagation and improve spectral efficiency by transmitting or receiving multiple signals via different spatial layers. Such technology may be referred to as spatial multiplexing. For example, the transmitting device may transmit multiple signals via different antennas or different antenna combinations. Similarly, the receiving device may receive multiple signals via different antennas or different antenna combinations. 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 for channel measurement and reporting. MIMO technology includes single-user MIMO (SU-MIMO), in which multiple spatial layers are transmitted to the same receiving device; and multi-user MIMO (MU-MIMO), in which multiple spatial layers are transmitted to multiple devices.

[0096] Beamforming (which may also be referred to as spatial filtering, directional transmission, or directional reception) is a signal processing technique that may be used at a transmitting device or a receiving device (e.g., a base station 105, a UE 115) to shape or steer an antenna beam (e.g., a transmit beam, a receive beam) along a spatial path between the transmitting device and the receiving device. Beamforming may be achieved by combining signals communicated via antenna elements of an antenna array so that some signals propagating at a particular orientation relative to the antenna array experience constructive interference, while other signals experience destructive interference. Adjustments to signals communicated via antenna elements may include the transmitting device or the receiving device applying an amplitude offset, a phase offset, or both to signals carried via antenna elements associated with the device. Adjustments associated with each antenna element may be defined by a set of beamforming weights associated with a particular orientation (e.g., relative to the antenna array of the transmitting device or the receiving device, or relative to some other orientation).

[0097] The base station 105 or the UE 115 may use beam sweeping techniques as part of a beamforming operation. For example, the base station 105 may use multiple antennas or antenna arrays (e.g., antenna panels) to perform beamforming operations for directional communication with the UE 115. Some signals (e.g., synchronization signals, reference signals, beam selection signals, or other control signals) may be transmitted multiple times by the base station 105 in different directions. For example, the base station 105 may transmit signals according to different sets of beamforming weights associated with different transmission directions. Transmissions in different beam directions may be used (e.g., by a transmitting device (such as the base station 105) or a receiving device (such as the UE 115)) to identify a beam direction used by the base station 105 for later transmission or reception.

[0098] Some signals, such as data signals associated with a particular recipient device, may be transmitted by base station 105 in a single beam direction, e.g., a direction associated with a recipient device, such as UE 115. In some examples, a beam direction associated with transmissions along a single beam direction may be determined based on 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 signal received by UE 115 with the highest signal quality or other acceptable signal quality.

[0099] In some examples, transmission by a device (e.g., by a base station 105 or a UE 115) may be performed using multiple beam directions, and the device may use a combination of digital precoding or radio frequency beamforming to generate a combined beam for transmission (e.g., from the base station 105 to the UE 105). The UE 115 may report feedback indicating precoding weights for one or more beam directions, and the feedback may correspond to a configured number of beams across the system bandwidth or one or more subbands. The base station 105 may transmit a reference signal that may be precoded or uncoded (e.g., a cell-specific reference signal (CRS), a channel state information reference signal (CSI-RS)). The UE 115 may provide feedback for beam selection, which may be a precoding matrix indicator (PMI) or codebook-based feedback (e.g., a multi-panel type codebook, a linear combination type codebook, a 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 a beam direction for subsequent transmission or reception by UE 115) or to transmit signals in a single direction (e.g., to transmit data to a receiving device).

[0100] A receiving device (e.g., UE 115) may try multiple reception configurations (e.g., directional listening) when receiving various signals (such as synchronization signals, reference signals, beam selection signals, or other control signals) from a base station 105. For example, the receiving device may try multiple reception directions by receiving via different antenna subarrays, processing received signals according to different antenna subarrays, receiving according to different receive beamforming weight sets (e.g., different directional listening weight sets) applied to signals received at multiple antenna elements of an antenna array, or processing received signals according to different receive beamforming weight sets applied to signals received at multiple antenna elements of an antenna array, any of which may be referred to as "listening" according to different reception configurations or reception directions. In some examples, the receiving device may use a single reception configuration to receive along a single beam direction (e.g., when receiving a data signal). The single reception configuration may be aligned on a beam direction determined based on listening according to different reception configuration directions (e.g., a beam direction determined to have the highest signal strength, the highest signal-to-noise ratio (SNR), or other acceptable signal quality based on listening according to multiple beam directions).

[0101] The wireless communication system 100 may be a packet-based network that operates according to a layered protocol stack. In the user plane, the communication of the bearer or packet data convergence protocol (PDCP) layer may be IP-based. The radio link control (RLC) layer may perform packet segmentation and reassembly to communicate on a logical channel. The media access control (MAC) layer may perform priority handling and multiplex logical channels into transport channels. The MAC layer may also use error detection techniques, error correction techniques, or both to support retransmission of the MAC layer to improve link efficiency. In the control plane, the radio resource control (RRC) protocol layer may provide the establishment, configuration, and maintenance of an RRC connection that supports radio bearers of user plane data between UE 115 and base station 105 or core network 130. At the physical layer, transport channels may be mapped to physical channels.

[0102] UE 115 and base station 105 may support retransmission of data to increase the likelihood that the data is successfully received. Hybrid automatic repeat request (HARQ) feedback is a technique for increasing the likelihood that data is correctly received 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 may improve the throughput of the MAC layer in poor radio conditions (e.g., low signal-to-noise ratio conditions). In some examples, a device may support simultaneous slot HARQ feedback, wherein the device may provide HARQ feedback in a specific time slot for data received in a previous symbol in the time slot. In other cases, the device may provide HARQ feedback in a subsequent time slot or according to some other time interval.

[0103] The wireless communication system 100 may include several devices, such as user equipment (UE), that may be grouped together based on various parameters. For example, the group of UEs 115 may be a monitoring network, where each UE 115 in the group of UEs acts as a video-based monitoring device for public services, security applications, or factory monitoring. In some other cases, the group of UEs 115 may be a group of cellular devices that are grouped together based on one or more common parameters.

[0104] In some cases, a UE 115 located within a UE group may detect an event (e.g., a monitoring event or a triggering event), and may use a scheduling request (SR) to request resources based on the detected event to transmit uplink data to the base station 105. In some cases, each UE 115 within the group may detect the event, which may prompt each UE in the group to request resources, for example, to transmit uplink data to the base station 105 individually or in a simultaneous or group transmission. In such cases, the UE 115 may be configured to support various different SRs and resource assignments associated with group scheduling and group transmission. For example, the UE 115 may support an SR configured for UE group scheduling, which may be different from an SR for single UE scheduling in some cases. In some aspects, the UE 115 may be configured for one or both of single UE scheduling (e.g., single UE SR) and group UE scheduling (e.g., UE group SR).

[0105] In addition, different types of UE scheduling (e.g., single UE scheduling and group UE scheduling) can be allocated different resources by the base station 105. For example, in the case of UE group scheduling, the allocated resource set (e.g., physical uplink control channel (PUCCH) resources) can be included in a group common downlink control message transmitted from the base station 105, where each UE 115 in the UE group receives the common DCI and can transmit uplink data on the same resources.

[0106] Figure 2 An example of a wireless communication system 200 that supports group scheduling requests and resource assignments according to aspects of the present disclosure is illustrated. In some examples, the wireless communication system 200 can implement aspects of the wireless communication system 100. For example, the wireless communication system 200 may include a base station 105-a, which can serve devices (such as UE 115) located in a network area 110-a. The base station 105-b and the UEs 115-a and 115-b may be reference Figure 1 Examples of base stations 105 and UEs 115 are described.

[0107] In some wireless communication systems, devices (such as UEs) may be assigned to different UE groups 205 based on various parameters (such as spatial proximity of the UEs, device type, or device capabilities). A UE 115 located in a UE group 205 may identify that it has uplink data to transmit to a base station 105-a based on an event (e.g., a target event, such as a monitoring event or a triggering event). In some cases, an event may prompt each UE 115 within a UE group 205 to transmit to the base station 105-a, for example, individually or in a simultaneous or group transmission.

[0108] In one example, a UE 115-a located in a UE group 205-a can be a video surveillance (e.g., monitoring) device (such as a video camera) and can be an example of a connected device in a wireless system that can communicate with other wireless devices. The video surveillance UE 115-a can implement video-based monitoring applications in public services (e.g., traffic monitoring, safe city applications, or building monitoring), factory services (e.g., plant monitoring, fishery monitoring, or mining supervision), and other applications. In some cases, the video surveillance UE 115-a can be connected to several other devices in the network, such as other UEs 115-a or 115-b and / or base stations 105-a.

[0109] In some cases, several UEs (such as a group of video surveillance UEs 115-a) may be indicated as part of a group 205-a. For example, the UE group 205-a may be a group of video cameras monitoring a given area of ​​a building or factory, where each video camera 115-a of the UE group 205-a captures a different perspective of the given area to improve monitoring quality. In some other cases, a UE group (e.g., UE group 205-b) may be a group of cellular devices 115-b that are grouped together based on one or more common parameters (e.g., such as spatial proximity).

[0110] In some examples, detection of an event may trigger a UE within a given UE group 205 to send uplink data to a base station 105-a or other network entity. In some cases, the UE group may send uplink data during the same time period, or may send data simultaneously (e.g., on the communication link 210) when a target event or trigger is detected. In one example, one or more video surveillance UEs 115-a within the UE group 205-a may detect an event (such as motion in a video surveillance frame) and may notify the base station 105-a of the detected motion by sending uplink data to the base station 105-a. For example, one or more video surveillance UEs 115-a in the UE group 115-a may identify an intruder intrusion by detecting motion in one or more video surveillance frames. Based on different detection methods (e.g., machine learning or thermal or motion triggers), the UE group 205-a may upload video to the base station 105-a, where each UE 115-a of the UE group 205-a may upload (e.g., transmit uplink data) to the base station 105-a simultaneously or as part of a group transmission.

[0111] Such group transmission or group upload of data by the UE group 205-a may trigger different events in some cases, such as alarms (e.g., to a control center), remote monitoring and high-definition video uploads, and other events. In some cases, group uplink transmissions from the UE group 205-a or 205-b may be asynchronous (e.g., bursty) because such uplink transmissions may be triggered by detecting a target event. However, simultaneous detection of events and corresponding simultaneous uplink transmissions by UEs in the wireless communication network 110-a may improve the reliability of the security system by reducing the time and amount of resources used to detect events and / or receive and process uplink data.

[0112] In some cases, the UE 115 and the base station 105 may communicate according to individual UE scheduling. In such cases, the UE 115 may request resources using a scheduling request (SR) when identifying uplink data to be transmitted to the base station 105-a. The base station 105-a may configure resources for the UE 115 to use to transmit the SR. For example, the base station 105-a may allocate a PUCCH resource set for the UE 115 and may notify the UE 115 of the SR resource set. The UE 115 may transmit the SR to the base station 105-a using the allocated resources, and the base station 105-a may determine a scheduling assignment including an additional resource set for the UE 115 to transmit the uplink data. The base station 105 may notify the UE 115 of the allocated uplink resources using a UE-specific DCI 215.

[0113] However, such individual UE scheduling may result in increased uplink control signaling overhead due to the resources used to transmit each individual SR. Furthermore, in situations where there are a large number of UEs in a given UE group, the increased downlink control overhead for sending UE-specific DCI may also reduce system efficiency. Furthermore, scheduling requests transmitted from UEs 115 in the UE group may increase the collision rate of PDCCH transmissions carrying DCI, which may increase latency and reduce overall communication efficiency within the network.

[0114] In order to reduce control channel overhead and the probability of control channel collisions (e.g., physical downlink control channel (PDCCH) collisions), a wireless device (such as a UE 115 or a base station 105) may be configured to support a variety of different SRs (e.g., different SRs associated with different kinds of uplink transmissions). In addition, SRs and resource assignments may be grouped based on uplink data transmitted by the UE 115 or by the UE group 205. In one scenario, the UE 115 may support SR resources (e.g., PUCCH resources) and corresponding SR identifiers (IDs) that may be designated for UE group scheduling. For example, a UE 115 located within the UE group 205 may identify data to be transmitted in a group transmission (e.g., the group transmission is transmitted simultaneously by the UE 115 and other UEs located in the UE group), and the UE 115 may transmit an SR indicating group scheduling and / or transmit the SR using resources allocated for UE group scheduling.

[0115] In some aspects, SR resources (eg, PUCCH resources) and / or SR IDs indicated for UE group scheduling may differ from SR resources used for single UE scheduling (eg, when UE 115 is not transmitting uplink data as part of a UE group).

[0116] In another example, the SR may be associated with a bit value or various different bit values ​​indicating UE group scheduling or single UE scheduling. For example, in the case where UE 115 requests to be scheduled (e.g., via a positive SR), the SR may include a single-bit indicator, where a first bit value (e.g., "0") may indicate single UE scheduling, and a second bit value (e.g., "1") may indicate group UE scheduling. In some other cases, the UE may not request to be scheduled (e.g., via a negative SR), and the UE may be configured for discontinuous transmission (DTX).

[0117] In some cases, UE 115 may be configured with different types of SRs (e.g., two or more SRs), and / or may send different types of SRs to base station 105-a. For example, UE 115 may be configured for one or both of single UE scheduling (e.g., single UE SR) and group UE scheduling (e.g., UE group SR). In some cases, UE 115 may determine whether to transmit a group SR or a single UE SR based on UE implementation and depending on the application. For example, UE 115 may determine whether to transmit a group SR or a single UE SR based on an event detected by UE 115 (e.g., a surveillance camera UE). In some cases, UE 115 may detect an emergency event (e.g., an intruder breaks into a building monitored by a group of UEs), and UE 115 may trigger a group of nearby cameras to upload video to a monitoring room. In such a case, UE 115 may determine to transmit a group SR. In some other situations, the UE 115 may identify a less urgent event, for example, the UE 115 may identify a security officer in a break-in area, and may only trigger the transmission of a single UE SR.

[0118] In one example, different types of UE scheduling (e.g., single UE scheduling and group UE scheduling) may be associated with different PUCCH resources or different SR IDs assigned by base station 105-a. For example, in the case of UE group scheduling, the allocated resource set (e.g., PUCCH resources) and the corresponding SR ID may be included in a configuration message (such as, DCI transmitted from base station 105-a). In some other cases, the allocated resource set may be predefined by one or more network specifications.

[0119] In some other examples described herein, a device may configure the SR to include a number of identification SR bits. In such examples, each SR bit included in the SR may indicate a different scheduling type supported or requested by the UE 115. For example, the SR may include a one-bit indicator, a two-bit indicator, or another indicator containing a different number of bits. In some examples where the SR includes a one-bit indicator associated with the scheduling type, a bit value of 1 may indicate group scheduling, while a bit value of 0 may represent single UE scheduling. In some other examples where the SR includes a two-bit indicator, bit values ​​00 and 01 may indicate single UE scheduling, while bit values ​​10 and 11 may indicate UE group scheduling.

[0120] For a two-bit SR indicator, in some cases, a first bit value may identify group scheduling (e.g., a first bit of 1 may indicate group scheduling, while a first bit of 0 may indicate single UE scheduling), while a second bit value may specify a different group associated with the UE (e.g., a second bit of 0 may indicate that the UE is part of a first UE group, while a second bit of 1 may indicate that the UE is part of a second UE group). In some examples, determining whether a UE transmits a group SR indicating a first or second UE group may be based on UE implementation and may depend on an application (e.g., depending on an event detected by a UE such as a surveillance camera UE).

[0121] In addition, different SRs may be configured according to different control channel (e.g., PUCCH) formats, where the SR may be generated by multiplying a base sequence by a complex-valued multiplier associated with group scheduling. For example, according to a first PUCCH format (e.g., PUCCH format 1; PF1), UE 115 may identify a parameter (e.g., d(0)) that carries information for UE group scheduling. In some cases, d(0) may be a binary phase shift keying (BPSK) complex-valued symbol to which the SR indicator bits (e.g., SR bit string) are mapped for a single-bit SR with PF1. In some other cases, d(0) may be a quadrature phase shift keying (QPSK) complex-valued symbol to which the SR indicator bits (e.g., SR bit string) are mapped for a two-bit SR with PF1.

[0122] According to another control channel format (eg, PUCCH format 0, PF0), UE 115 may use different parameters (such as m cs Parameter) to carry information for UE group scheduling. cs The parameter is selected based on various parameters (such as group information) and in some cases may be a predetermined value. In some examples, for a single bit SR according to PF0, for SR bit value 0, m cs =0, and for SR bit value 1, m cs =6. In some other examples, for a two-bit SR according to PF0, for an SR bit value of 00, m cs =0, for SR bit value 01, m cs =3, for SR bit value 10, m cs =6, and for SR bit value 11, m cs =9.

[0123] According to some aspects, PF0 is determined by a low PAPR sequence defined as follows:

[0124] and

[0125] in Given by the low PAPR sequence:

[0126] is a base sequence predefined by the specification, and α is the cyclic shift given by:

[0127]

[0128] Accordingly, n cs Determined by the number of slots in a radio frame and the OFDM symbol index in the slot, m0 is the initial cyclic shift preconfigured by RRC or predefined by the specification, except in some cases for PF0 (e.g., in m cs In addition to the case where the SR bit string value can be used to represent the SR bit string value, m cs = 0. In addition, PF1 can be determined by multiplying the low PAPR sequence described herein by the complex-valued symbol d(0), which can be defined as:

[0129]

[0130] Figure 3A and 3B An example of a multiplexing scheme 300 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is illustrated. In some examples, the multiplexing scheme 300 can implement aspects of the wireless communication system 100. For example, the multiplexing scheme 300 can be configured and / or implemented by wireless devices (such as base stations and UEs) located within the wireless communication system 100.

[0131] In addition to different SRs transmitted by UEs in the network, different types of UE scheduling (such as single UE scheduling and group UE scheduling) can also be distinguished by the PUCCH resources assigned at the base station. For example, in the case of UE group scheduling, the allocated resource set (e.g., PUCCH resources) and the corresponding SR ID may be included in the downlink control message or RRC transmitted from the base station. In some cases, the base station may configure the DCI to be common to the UE group and may include group common information (such as scheduling information or multiplexing information).

[0132] As indicated by the DCI transmitted from the base station, several different multiplexing schemes may be applied to UEs within a given UE group. A particular UE group may be scheduled using a group common DCI (GC-DCI) (e.g., GC-DCI 305 or 330), wherein the GC-DCI includes several CRC bits scrambled by a radio network temporary identifier (RNTI) (e.g., a group scheduling RNTI), which may be common to all UEs in the group. The GC-DCI may include a common field for an indication of a time / frequency resource assignment, which is common to all UEs in the group. The resources indicated by the resource assignment may be multiplexed using predefined or preconfigured rules.

[0133] exist Figure 3A In the example of FIG. 1 , the base station may send a plurality of UEs in the group (eg, including UE0, UE1, UE2, to UE N-1 ) sends GC-DCI 305. GC-DCI 305 may include an indication of resources that the UE may use to transmit uplink data. For example, GC-DCI 305 may indicate that resources that can be transmitted by UE0, UE1, UE2, to UE N-1 A number of physical uplink shared channel (PUSCH) resources (e.g., PUSCH 310, 315, 320 to 325) used to transmit uplink data. In addition, the GC-DCI may include a multiplexing scheme that can be used to multiplex transmissions included in a group transmission associated with a group of UEs. In one example, the multiplexing scheme may include multi-slot scheduling (e.g., time division multiplexing) across slots (n), (n+1), (n+2) to (n+M-1). Figure 3A In the example of FIG. 1 , each uplink channel (eg, PUSCH) resource may be sequentially assigned to each time slot, and each UE (eg, UE0 to UE M-1 ) may be assigned resources in the corresponding time slot (e.g., time slot n to time slot n+M-1). In some cases, the time slot to which the UE corresponds may be determined by the UE index in the group (e.g., m∈{0,1,…,M-1}, where M corresponds to the number of UEs in the group).

[0134] Figure 3B The example of FIG. 1 shows another multiplexing scheme, where GC-DCI is a UE group (eg, UE0 to UE M-1) configure uplink channel (e.g., PUSCH) resources for different UEs in the UE group. In such a multiplexing scheme, uplink transmissions can be multiplexed using multi-user multiple input multiple output (MU-MIMO) together with orthogonal demodulation reference signals (DMRS). For example, a group of UEs can be scheduled using multi-layer MIMO transmissions corresponding to PUSCH resources 335, 340, 345 to 350, and each UE corresponds to a different DMRS port. In some cases, DMRS can be code-division multiplexed (CDM) using cyclic shifts of a base sequence or orthogonal cover codes. In addition, each DMRS port can be associated with a corresponding UE index m.

[0135] In either case, a UE scheduled by a GC-DCI (e.g., 305, 330) may send report signaling, such as a buffer status report (BSR), via a shared channel (e.g., PUSCH) using the time / frequency resource assignment and multiplexing scheme indicated in the GC-DCI. In such a case, the UE may inform the network of the amount of buffered data that it may send using the allocated resources.

[0136] Figure 4 An example of a UE group configuration 400 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is illustrated. In some examples, the UE group configuration 400 can implement aspects of the wireless communication system 100. The UE group configuration 400 can include a number of UEs, which can be reference Figure 1 An example of a UE 115 is described.

[0137] According to the methods described herein, multiple different SRs for UE scheduling may be configured across different or overlapping UE groups. For example, there may be two or more different UE groups 405 and 410 (e.g., UE group 1 and UE group 2) in a network. In some cases, two or more UE groups may intersect. For example, UE group 405-a may intersect or overlap with UE group 410-a. In such a case, a UE 415-a located at the intersection of UE groups 405-a and 410-a may send an SR indicating a request for group scheduling of UE groups 405-a, 410-a, or both to the base station. The UE may indicate a resource request for configuring UEs in groups 405-a, 405-b, or both.

[0138] In some other cases, UE group 410-b may belong to another UE group 405-b (e.g., UE group 2 is designated as part of UE group 1). For example, UE group 410-b may be a subgroup of UE group 405-b. In such a case, UE 415-b located in UE group 410-b may send an SR to the base station indicating a request for group scheduling of UE group 405-b or 410-b. The UE may indicate a group common resource request for configuring UEs in group 405-a, 405-b, or both.

[0139] In still other cases, one or more UE groups may not overlap or intersect, and UEs from any one group may send SRs. In some cases, only one UE from the group will transmit an SR (e.g., to reduce traffic), and in some other cases, each UE or several UEs from the group will transmit a scheduling request to the base station (and will use whichever SR the base station receives first, or whichever SR has the strongest signal at the base station).

[0140] Figure 5 An example of a process flow diagram 500 for supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is illustrated. In some examples, the process flow diagram 500 can implement aspects of the wireless communication system 100. For example, the process flow diagram 500 can include communications between a UE 115-c and a base station 105-b, which can be referenced Figure 1 Examples of UE 115 and base station 105 are described. Additionally, UE 115-c may be a reference Figure 2 An example of a video surveillance UE 115 is described.

[0141] At 505, base station 105-b may identify a set of dedicated uplink resources for transmitting a scheduling request associated with group scheduling, and may transmit an indication of the set of dedicated uplink resources to UE 115. In some cases, base station 105-b may transmit a configuration message to UE 115-c. In some examples, the configuration message may include an RRC message, broadcast system information, a MAC control element, or a combination thereof. The configuration message may configure a set of dedicated uplink time, frequency, and / or spatial resources for the scheduling request associated with group scheduling.

[0142] At 510, the UE 115-c may identify a set of dedicated uplink resources for a scheduling request associated with group scheduling. In some cases, the UE 115-c may identify the set of dedicated uplink resources by receiving a DCI (e.g., RRC) from a base station that may configure dedicated uplink resources.

[0143] At 515, UE 115-c may determine uplink resources requested by the UE group for uplink data transmission. In some cases, the UE group may include UE 115-c. In some cases, the UE group may request group scheduling, or may request resources for simultaneous transmissions to base station 105-b.

[0144] At 520, UE 115-c may transmit a scheduling request to base station 105-b. In some cases, the scheduling request may include an indication of uplink resources requested by the UE group for data transmission. In some examples, the scheduling request transmitted by UE 115-c may include a group scheduling indication. The group scheduling indication may include a set of one or more scheduling mode indicator bits associated with group scheduling of UE 115-c. UE 115-c may generate the group scheduling indication in various ways, such as by applying a cyclic shift associated with group scheduling to a base sequence, and / or multiplying the base sequence by a complex-valued multiplier associated with group scheduling. In some cases, the group scheduling indication includes an identifier of a UE group (e.g., a UE group requesting resources).

[0145] At 525, base station 105-b may receive a scheduling request from UE 115-c on at least one scheduling request resource of the identified dedicated uplink resources allocated to UE 115-c, and may transmit DCI to UE 115-c based on the scheduling request. The DCI may allocate uplink resources to the UE based on the scheduling request. In some cases, the DCI may indicate an uplink resource assignment for all UEs of the group, for example, the DCI may be a GC-DCI addressed to the group of UEs. In some examples, the uplink resource set indicated in the DCI may be allocated to the UE based on the uplink resource assignment and an index of the UE.

[0146] At 530, the base station 105-b may transmit the DCI to the UE 115-c, and the UE 115-c may receive the DCI. In some cases, the base station may scramble the set of CRC bits based on the group common RNTI, and the UE 115-c may descramble the set of CRC bits based on the group common RNTI.

[0147] At 535, the UE 115-c may determine a portion of the allocated uplink resources based on the scheduling request and indicated in the received DCI. The DCI may further include an indication of a multiplexing scheme for the uplink resources, such as a multi-slot scheduling scheme, in which each UE in the group of UEs is assigned uplink resources in a different time slot from the uplink resource assignment for all UEs in the group. The multiplexing scheme may also be a MU-MIMO spatial multiplexing scheme, in which each UE in the group of UEs is associated with a separate orthogonal code domain multiplexed demodulation reference signal. According to some aspects, the multiplexing scheme indicated in the DCI may be associated with a reference signal. Figure 3A and 3B The multiplexing schemes described are the same or similar.In some other cases, the multiplexing scheme may be preconfigured or standardized and may not be included in the DCI indication.

[0148] At 540, the UE 115-c may transmit uplink data on the allocated uplink resources. In some cases, the UE 115-c may transmit the uplink resources as part of a group transmission along with several other UEs in the UE group. In some cases, the UE 115-c may transmit a BSR on a portion of the allocated uplink resources.

[0149] Figure 6 A block diagram 600 of a device 605 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The device 605 may be an example of aspects of a UE 115 as described herein. The device 605 may include a receiver 610, a communication manager 615, and a transmitter 620. The 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).

[0150] The receiver 610 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, or information related to group scheduling requests and resource assignments, etc.). The information may be passed to other components of the device 605. The receiver 610 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The receiver 610 may utilize a single antenna or a collection of antennas.

[0151] The communication manager 615 may transmit a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a UE group for data transmission; receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; and transmit uplink data to the base station using the uplink resources allocated to the UE. The communication manager 615 may be an example of aspects of the communication manager 910 described herein.

[0152] The communication manager 615 or its subcomponents may be implemented in hardware, software (e.g., executed by at least one processor), or any combination thereof. If implemented in code executed by at least one processor, the functions of the communication manager 615 or its subcomponents may be performed by a general purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), an 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 the present disclosure.

[0153] The communication manager 615 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 the present disclosure, the communication manager 615 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 615 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0154] The transmitter 620 can transmit signals generated by other components of the device 605. In some examples, the transmitter 620 can be co-located with the receiver 610 in a transceiver module. For example, the transmitter 620 can be a reference Fig. 9 Examples of aspects of the described transceiver 920. The transmitter 620 may utilize a single antenna or a collection of antennas.

[0155] In some examples, the communication manager 615 may be implemented as an integrated circuit or chipset for a mobile device modem, and the receiver 610 and transmitter 620 may be implemented as analog components (e.g., amplifiers, filters, or antennas) coupled to the mobile device modem to enable wireless transmission and reception.

[0156] The communication manager 615 as described herein may be implemented to achieve one or more potential advantages. Various implementations may achieve a reduction in uplink and downlink overhead by reducing the number of scheduling requests transmitted by UEs and processed by base stations within a wireless network. This reduction in scheduling requests allows for reduced uplink conflicts and more efficient use of radio resources, thereby improving performance and data throughput. At least one implementation may enable the communication manager 615 to efficiently coordinate communications and identify SR resources that may be used to schedule group transmissions, for example, when several UEs have data to transmit simultaneously.

[0157] Based on implementing interference mitigation techniques as described herein, one or more processors of device 605 (e.g., a processor controlling one or more of receiver 610, communication manager 615, and transmitter 620 or in conjunction therewith) can reduce communication latency within a wireless network by reducing the number of SRs transmitted and correspondingly reducing the number of transmission conflicts. In addition, in a device operating as part of a security system, communication reliability and speed can be improved, where improved techniques for scheduling simultaneous transmissions can reduce the amount of time between detecting a triggering event and initiating an alarm or similar response process.

[0158] Figure 7 A block diagram 700 of a device 705 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The device 705 may be an example of aspects of the device 605 or UE 115 as described herein. The device 705 may include a receiver 710, a communication manager 715, and a transmitter 735. The device 705 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0159] The receiver 710 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, or information related to group scheduling requests and resource assignments, etc.). The information may be passed to other components of the device 705. The receiver 710 may be a reference Fig. 9 Examples of aspects of the described transceiver 920. The receiver 710 may utilize a single antenna or a collection of antennas.

[0160] The communication manager 715 may be an example of aspects of the communication manager 615 as described herein. The communication manager 715 may include an SR transmission component 720, a DCI processing component 725, and an uplink data transmission module 730. The communication manager 715 may be an example of aspects of the communication manager 910 described herein.

[0161] SR transmission component 720 can transmit a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission.

[0162] The DCI processing component 725 can receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request.

[0163] The uplink data transmission module 730 may transmit uplink data to the base station using uplink resources allocated to the UE.

[0164] The transmitter 735 can transmit signals generated by other components of the device 705. In some examples, the transmitter 735 can be co-located with the receiver 710 in a transceiver module. For example, the transmitter 735 can be a reference Fig. 9 Examples of aspects of the described transceiver 920. The transmitter 735 may utilize a single antenna or a collection of antennas.

[0165] Figure 8 A block diagram 800 of a communication manager 805 supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown. The communication manager 805 may be an example of aspects of the communication manager 615, the communication manager 715, or the communication manager 910 described herein. The communication manager 805 may include an SR transmission component 810, a DCI processing component 815, an uplink data transmission module 820, an SR resource identification module 825, a scheduling indication generator 830, an uplink resource identification module 835, a multiplexing component 840, and a BSR component 845. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0166] The SR transmission component 810 may transmit a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by the UE group for data transmission. In some examples, the SR transmission component 810 may include a group scheduling indication in the scheduling request. In some cases, the group scheduling indication includes a set of one or more scheduling mode indicator bits associated with group scheduling.

[0167] The DCI processing component 815 may receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. In some examples, the DCI processing component 815 may descramble the cyclic redundancy check bit set based on the identifier of the UE group. In some cases, the downlink control information includes group common downlink control information indicating uplink resource assignments for all UEs in the group. In some cases, the identifier of the UE group includes a group common radio network temporary identifier (GC-RNTI).

[0168] The uplink data transmission module 820 may transmit uplink data to the base station using uplink resources allocated to the UE.

[0169] The SR resource identification module 825 may identify a dedicated uplink resource set for a scheduling request associated with group scheduling, wherein the scheduling request is transmitted to the base station using at least one scheduling request resource in the identified dedicated scheduling request resource set. In some examples, the SR resource identification module 825 may receive an RRC message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling.

[0170] The scheduling indication generator 830 may generate the group scheduling indication by applying a cyclic shift associated with the group scheduling to the base sequence; wherein the scheduling request is transmitted based on the base sequence and the cyclic shift.

[0171] In some examples, the scheduling indication generator 830 may generate a group scheduling indication by multiplying a base sequence by a complex valued multiplier associated with group scheduling; wherein the scheduling request is transmitted based on the base sequence and the complex valued multiplier. In some cases, the group scheduling indication includes an identifier of the UE group.

[0172] The uplink resource identification module 835 may determine the uplink resources allocated to a UE based on the uplink resource assignments for all UEs in the group and an index of the UE.

[0173] The multiplexing component 840 can perform a multiplexing scheme, which can include a multi-slot scheduling scheme, in which each UE in the UE group is assigned uplink resources in a different time slot from the uplink resource assignment for all UEs in the group. In some cases, the multiplexing scheme includes a multi-user multiple-input multiple-output spatial multiplexing scheme, in which each UE in the UE group is associated with a separate orthogonal code domain multiplexed demodulation reference signal.

[0174] The BSR component 845 can transmit the buffer status report using a portion of the uplink resources allocated to the UE.

[0175] Fig. 9 A diagram of a system 900 including a device 905 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The device 905 may be an example of or include a component of a device 605, a device 705, or a UE 115 as described herein. The device 905 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 910, an I / O controller 915, a transceiver 920, an antenna 925, a memory 930, and a processor 940. These components may be in electronic communication via one or more buses (e.g., a bus 945).

[0176] The communication manager 910 may transmit a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a UE group for data transmission; receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; and transmit uplink data to the base station using the uplink resources allocated to the UE.

[0177] I / O controller 915 can manage input and output signals of device 905. I / O controller 915 can also manage peripheral devices that are not integrated into device 905. In some cases, I / O controller 915 can represent a physical connection or port to an external peripheral device. In some cases, I / O controller 915 can utilize an operating system, such as Or another known operating system. In other cases, I / O controller 915 may represent or interact with a modem, keyboard, mouse, touch screen, or similar device. In some cases, I / O controller 915 may be implemented as part of a processor. In some cases, a user may interact with device 905 via I / O controller 915 or via hardware components controlled by I / O controller 915.

[0178] The transceiver 920 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 920 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 920 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0179] In some cases, a wireless device may include a single antenna 925. However, in some cases, the device may have more than one antenna 925, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0180] The memory 930 may include RAM and ROM. The memory 930 may store computer-readable, computer-executable code 935 including instructions that, when executed, cause the processor to perform the various functions described herein. In some cases, the memory 930 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0181] The code 935 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 935 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 935 may not be directly executed by the processor 940, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0182] The processor 940 may include an intelligent hardware device (e.g., a general-purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, the processor 940 may be configured to operate a memory array using a memory controller. In other cases, the memory controller may be integrated into the processor 940. The processor 940 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 930) to cause the device 905 to perform various functions (e.g., functions or tasks that support group scheduling requests and resource assignments).

[0183] Fig.10 A block diagram 1000 of a device 1005 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The device 1005 may be an example of aspects of a base station 105 as described herein. The device 1005 may include a receiver 1010, a communication manager 1015, and a transmitter 1020. The device 1005 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0184] The receiver 1010 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, or information related to group scheduling requests and resource assignments, etc.). The information may be passed to other components of the device 1005. The receiver 1010 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The receiver 1010 may utilize a single antenna or a collection of antennas.

[0185] The communication manager 1015 may receive a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; determine downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; transmit the downlink control information to the UE; and receive uplink data from the UE on the uplink resources allocated to the UE. The communication manager 1015 may be an example of aspects of the communication manager 1310 described herein.

[0186] The communication manager 1015 or its subcomponents may be implemented in hardware, software (e.g., executed by at least one processor), or any combination thereof. If implemented in code executed by at least one processor, the functions of the communication manager 1015 or its subcomponents may be performed by a general purpose processor, DSP, application specific integrated circuit (ASIC), FPGA or other programmable logic device designed to perform the functions described in the present disclosure, discrete gate or transistor logic, discrete hardware components, or any combination thereof.

[0187] The communication manager 1015 or its subcomponents may be physically located at various locations, including being distributed such that portions of functionality are implemented by one or more physical components at different physical locations. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be separate and distinct components. In some examples, according to various aspects of the present disclosure, the communication manager 1015 or its subcomponents may be combined with one or more other hardware components, including but not limited to input / output (I / O) components, a transceiver, a network server, another computing device, one or more other components described in the present disclosure, or a combination thereof.

[0188] The transmitter 1020 may transmit signals generated by other components of the device 1005. In some examples, the transmitter 1020 may be co-located with the receiver 1010 in a transceiver module. For example, the transmitter 1020 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The transmitter 1020 may utilize a single antenna or a collection of antennas.

[0189] Fig.11 A block diagram 1100 of a device 1105 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The device 1105 may be an example of aspects of the device 1005 or base station 105 as described herein. The device 1105 may include a receiver 1110, a communication manager 1115, and a transmitter 1135. The device 1105 may also include a processor. Each of these components may be in communication with each other (e.g., via one or more buses).

[0190] The receiver 1110 may receive information such as packets, user data, or control information associated with various information channels (e.g., control channels, data channels, or information related to group scheduling requests and resource assignments, etc.). The information may be passed to other components of the device 1105. The receiver 1110 may be a reference Fig.13 Examples of aspects of the described transceiver 1320. The receiver 1110 may utilize a single antenna or a collection of antennas.

[0191] The communications manager 1115 may be an example of aspects of the communications manager 1015 as described herein. The communications manager 1115 may include an SR receiving component 1120, a DCI component 1125, and an uplink data receiving module 1130. The communications manager 1115 may be an example of aspects of the communications manager 1310 described herein.

[0192] SR receiving component 1120 can receive a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission.

[0193] The DCI component 1125 may determine downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request, and transmit the downlink control information to the UE.

[0194] The uplink data receiving module 1130 may receive uplink data from the UE on the uplink resources allocated to the UE.

[0195] The transmitter 1135 may transmit signals generated by other components of the device 1105. In some examples, the transmitter 1135 may be co-located with the receiver 1110 in a transceiver module. Fig.13 Examples of various aspects of the described transceiver 1320. The transmitter 1135 may utilize a single antenna or a collection of antennas.

[0196] Fig.12 A block diagram 1200 of a communication manager 1205 supporting group scheduling requests and resource assignments in accordance with aspects of the present disclosure is shown. The communication manager 1205 may be an example of aspects of the communication manager 1015, the communication manager 1115, or the communication manager 1310 described herein. The communication manager 1205 may include an SR receiving component 1210, a DCI component 1215, an uplink data receiving module 1220, an uplink resource identification module 1225, an RRC message transmitter 1230, a multiplexing component 1235, and a BSR component 1240. Each of these modules may communicate directly or indirectly with each other (e.g., via one or more buses).

[0197] SR receiving component 1210 may receive a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission. In some examples, SR receiving component 1210 may receive a scheduling request from a UE on at least one scheduling request resource in an identified set of dedicated scheduling request resources. In some examples, SR receiving component 1210 may receive a group scheduling indication in the scheduling request.

[0198] In some examples, the SR receiving component 1210 may receive the scheduling request based on a base sequence applied to the scheduling request at the UE and a cyclic shift associated with group scheduling. In some examples, the SR receiving component 1210 may receive the scheduling request based on a base sequence used to generate group scheduling information at the UE and a complex-valued multiplier associated with group scheduling.

[0199] In some cases, the group scheduling indication comprises a set of one or more scheduling mode indicator bits associated with group scheduling.In some cases, the group scheduling indication comprises an identifier of a group of UEs.

[0200] The DCI component 1215 may determine downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. In some examples, the DCI component 1215 may transmit the downlink control information to the UE. In some examples, the DCI component 1215 may scramble the set of cyclic redundancy check bits based on an identifier of the UE group.

[0201] In some cases, the downlink control information comprises group common downlink control information indicating uplink resource assignments for all UEs in the group.In some cases, the identifier of the group of UEs comprises a group common radio network temporary identifier (GC-RNTI).

[0202] The uplink data receiving module 1220 may receive uplink data from the UE on the uplink resources allocated to the UE.

[0203] The uplink resource identification module 1225 may identify a dedicated uplink resource set for a scheduling request associated with group scheduling. In some examples, the uplink resource identification module 1225 may transmit an indication of a dedicated uplink resource set for a scheduling request associated with group scheduling to the UE. In some cases, the uplink resources allocated to the UE are indicated based on an uplink resource assignment for all UEs in the group and an index of the UE.

[0204] The RRC message transmitter 1230 may transmit an RRC message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling.

[0205] The multiplexing component 1235 can perform a multiplexing scheme, which can include a multi-slot scheduling scheme, in which each UE in the UE group is assigned uplink resources in a different time slot from the uplink resource assignment for all UEs in the group. In some cases, the multiplexing scheme includes a multi-user multiple-input multiple-output spatial multiplexing scheme, in which each UE in the UE group is associated with a separate orthogonal code domain multiplexed demodulation reference signal.

[0206] The BSR component 1240 can receive a buffer status report on a portion of the uplink resources allocated to the UE.

[0207] Fig.13 A diagram of a system 1300 including a device 1305 supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The device 1305 may be an example of a device 1005, a device 1105, or a base station 105 as described herein or include components of the above devices. The device 1305 may include components for two-way voice and data communications, including components for transmitting and receiving communications, including a communication manager 1310, a network communication manager 1315, a transceiver 1320, an antenna 1325, a memory 1330, a processor 1340, and an inter-station communication manager 1345. These components may be in electronic communication via one or more buses (e.g., bus 1350).

[0208] The communication manager 1310 may receive a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a UE group for data transmission; determine downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request; transmit the downlink control information to the UE; and receive uplink data from the UE on the uplink resources allocated to the UE.

[0209] The network communications manager 1315 may manage communications with the core network (eg, via one or more wired backhaul links). For example, the network communications manager 1315 may manage the delivery of data communications for client devices, such as one or more UEs 115.

[0210] The transceiver 1320 may communicate bidirectionally via one or more antennas, wired or wireless links, as described above. For example, the transceiver 1320 may represent a wireless transceiver and may communicate bidirectionally with another wireless transceiver. The transceiver 1320 may also include a modem to modulate packets and provide the modulated packets to an antenna for transmission, and demodulate packets received from an antenna.

[0211] In some cases, a wireless device may include a single antenna 1325. However, in some cases, the device may have more than one antenna 1325, which may be capable of transmitting or receiving multiple wireless transmissions concurrently.

[0212] Memory 1330 may include RAM, ROM, or a combination thereof. Memory 1330 may store computer readable code 1335 including instructions that, when executed by at least one processor (e.g., processor 1340), cause the device to perform various functions described herein. In some cases, memory 1330 may include, among other things, a BIOS that may control basic hardware or software operations, such as interaction with peripheral components or devices.

[0213] Processor 1340 may include an intelligent hardware device (e.g., a general purpose processor, a DSP, a CPU, a microcontroller, an ASIC, an FPGA, a programmable logic device, a discrete gate or transistor logic component, a discrete hardware component, or any combination thereof). In some cases, processor 1340 may be configured to operate a memory array using a memory controller. In some cases, the memory controller may be integrated into processor 1340. Processor 1340 may be configured to execute computer-readable instructions stored in a memory (e.g., memory 1330) to cause device 1305 to perform various functions (e.g., functions or tasks that support group scheduling requests and resource assignments).

[0214] The inter-site communication manager 1345 may manage communications with other base stations 105 and may include a controller or scheduler for controlling communications with UE 115 in cooperation with other base stations 105. For example, the inter-site communication manager 1345 may coordinate scheduling of transmissions to UE 115 for various interference mitigation techniques such as beamforming or joint transmission. In some examples, the inter-site communication manager 1345 may provide an X2 interface within an LTE / LTE-A wireless communication network technology to provide communications between base stations 105.

[0215] The code 1335 may include instructions for implementing various aspects of the present disclosure, including instructions for supporting wireless communications. The code 1335 may be stored in a non-transitory computer-readable medium, such as a system memory or other type of memory. In some cases, the code 1335 may not be directly executed by the processor 1340, but may cause a computer (e.g., when compiled and executed) to perform the functions described herein.

[0216] Fig.14 A flow chart illustrating a method 1400 for supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The operations of the method 1400 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1400 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0217] At 1405, the UE may transmit a scheduling request to the base station, the scheduling request including an indication of uplink resources requested by the UE group for data transmission. The operations of 1405 may be performed according to the methods described herein. In some examples, aspects of the operations of 1405 may be performed as described with reference to Figures 6 to 9 The SR transport component described is performed.

[0218] At 1410, the UE may receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. The operations of 1410 may be performed according to the methods described herein. In some examples, aspects of the operations of 1410 may be performed as described with reference to Figures 6 to 9 The described DCI processing components are performed.

[0219] At 1415, the UE may transmit uplink data to the base station using the uplink resources allocated to the UE. The operations of 1415 may be performed according to the methods described herein. In some examples, aspects of the operations of 1415 may be performed as described with reference to Figures 6 to 9 The described uplink data transmission module is executed.

[0220] Fig.15 A flow chart illustrating a method 1500 for supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1500 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0221] At 1505, the UE may identify a dedicated uplink resource set for a scheduling request associated with group scheduling, wherein the scheduling request is transmitted to the base station using at least one scheduling request resource in the identified dedicated scheduling request resource set. The operations of 1505 may be performed according to the methods described herein. In some examples, aspects of the operations of 1505 may be performed as described with reference to Figures 6 to 9 The described SR resource identification module is executed.

[0222] At 1510, the UE may receive an RRC message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling. The operations of 1510 may be performed according to the methods described herein. In some examples, aspects of the operations of 1510 may be performed as described with reference to Figures 6 to 9 The described SR resource identification module is executed.

[0223] At 1515, the UE may transmit a scheduling request to the base station, the scheduling request including an indication of uplink resources requested by the UE group for data transmission. The operations of 1515 may be performed according to the methods described herein. In some examples, aspects of the operations of 1515 may be performed as described with reference to Figures 6 to 9 The SR transport component described is performed.

[0224] At 1520, the UE may receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. The operations of 1520 may be performed according to the methods described herein. In some examples, aspects of the operations of 1520 may be performed as described with reference to Figures 6 to 9 The described DCI processing components are performed.

[0225] At 1525, the UE may transmit uplink data to the base station using the uplink resources allocated to the UE. The operations of 1525 may be performed according to the methods described herein. In some examples, aspects of the operations of 1525 may be performed as described with reference to Figures 6 to 9 The described uplink data transmission module is executed.

[0226] Fig.16 A flow chart illustrating a method 1600 for supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1600 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0227] At 1605, the UE may transmit a scheduling request to the base station, the scheduling request including an indication of uplink resources requested by the UE group for data transmission. The operations of 1605 may be performed according to the methods described herein. In some examples, aspects of the operations of 1605 may be as described with reference to Figures 6 to 9 The SR transport component described is performed.

[0228] At 1610, the UE may include a group scheduling indication in the scheduling request. The operations of 1610 may be performed according to the methods described herein. In some examples, aspects of the operations of 1610 may be performed as described with reference to Figures 6 to 9 The SR transport component described is performed.

[0229] At 1615, the UE may receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. The operations of 1615 may be performed according to the methods described herein. In some examples, aspects of the operations of 1615 may be performed as described with reference to Figures 6 to 9 The described DCI processing components are performed.

[0230] At 1620, the UE may transmit uplink data to the base station using the uplink resources allocated to the UE. The operations of 1620 may be performed according to the methods described herein. In some examples, aspects of the operations of 1620 may be as described with reference to Figures 6 to 9 The described uplink data transmission module is executed.

[0231] Fig.17 1 is a flow chart illustrating a method 1700 for supporting group scheduling requests and resource assignments according to aspects of the present disclosure. The operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. For example, the operations of the method 1700 may be implemented by a UE 115 or a component thereof as described herein. Figures 6 to 9 In some examples, the UE may execute an instruction set to control the functional elements of the UE to perform the functions described below. Additionally or alternatively, the UE may use dedicated hardware to perform various aspects of the functions described below.

[0232] At 1705, the UE may transmit a scheduling request to the base station, the scheduling request including an indication of uplink resources requested by the UE group for data transmission. The operations of 1705 may be performed according to the methods described herein. In some examples, aspects of the operations of 1705 may be performed as described with reference to Figures 6 to 9 The SR transport component described is performed.

[0233] At 1710, the UE may receive downlink control information from the base station based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. The operations of 1710 may be performed according to the methods described herein. In some examples, aspects of the operations of 1710 may be performed as described with reference to Figures 6 to 9 The described DCI processing components are performed.

[0234] At 1715, the UE may determine that the downlink control information includes group common downlink control information indicating uplink resource assignments for all UEs in the group. The operations of 1715 may be performed according to the methods described herein. In some examples, aspects of the operations of 1715 may be performed as described with reference to Figures 6 to 9 The described DCI processing components are performed.

[0235] At 1720, the UE may determine the uplink resources allocated to the UE based on the uplink resource assignments for all UEs in the group and the index of the UE. The operations of 1720 may be performed according to the methods described herein. In some examples, aspects of the operations of 1720 may be performed as described with reference to Figures 6 to 9 The described uplink resource identification module is executed.

[0236] At 1725, the UE may transmit uplink data to the base station using the uplink resources allocated to the UE. The operations of 1725 may be performed according to the methods described herein. In some examples, aspects of the operations of 1725 may be performed as described with reference to Figures 6 to 9 The described uplink data transmission module is executed.

[0237] Fig.18 A flow chart illustrating a method 1800 for supporting group scheduling requests and resource assignments according to aspects of the present disclosure is shown. The operations of the method 1800 may be implemented by a base station 105 or components thereof as described herein. For example, the operations of the method 1800 may be implemented by a base station 105 or components thereof as described herein. Figures 10 to 13 In some examples, the base station may execute an instruction set to control the functional elements of the base station to perform the functions described below. Additionally or alternatively, the base station may use dedicated hardware to perform various aspects of the functions described below.

[0238] At 1805, the base station may receive a scheduling request from a UE, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission. The operations of 1805 may be performed according to the methods described herein. In some examples, aspects of the operations of 1805 may be performed as described with reference to Figures 10 to 13 The described SR receiving component is executed.

[0239] At 1810, the base station may determine downlink control information for the UE based on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based on the scheduling request. The operations of 1810 may be performed according to the methods described herein. In some examples, aspects of the operations of 1810 may be performed as described with reference to Figures 10 to 13 The DCI components described are performed.

[0240] At 1815, the base station may transmit downlink control information to the UE. The operations of 1815 may be performed according to the methods described herein. In some examples, aspects of the operations of 1815 may be performed as described with reference to Figures 10 to 13 The DCI components described are performed.

[0241] At 1820, the base station may receive uplink data from the UE on the uplink resources allocated to the UE. The operations of 1820 may be performed according to the methods described herein. In some examples, aspects of the operations of 1820 may be performed as described with reference to Figures 10 to 13 The described uplink data receiving module is executed.

[0242] The following provides an overview of various aspects of the disclosure:

[0243] Aspect 1: A method for wireless communication at a user equipment (UE), comprising: transmitting a scheduling request to a base station, the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; receiving downlink control information from the base station based at least in part on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based at least in part on the scheduling request; and transmitting uplink data to the base station using the uplink resources allocated to the UE.

[0244] Aspect 2: The method of aspect 1 further comprises: identifying a dedicated uplink resource set for a scheduling request associated with group scheduling, wherein the scheduling request is transmitted to the base station using at least one scheduling request resource in the identified dedicated scheduling request resource set.

[0245] Aspect 3: The method of aspect 2, wherein identifying a dedicated uplink resource set for a scheduling request associated with group scheduling comprises: receiving a radio resource control (RRC) message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling.

[0246] Aspect 4: The method according to any one of aspects 1 to 3, further comprising: including a group scheduling indication in the scheduling request.

[0247] Aspect 5: The method of aspect 4, wherein the group scheduling indication comprises a set of one or more scheduling mode indicator bits associated with group scheduling.

[0248] Aspect 6: The method of any one of aspects 4 or 5, further comprising: generating a group scheduling indication by applying a cyclic shift associated with the group scheduling to a base sequence; wherein the scheduling request is transmitted based at least in part on the base sequence and the cyclic shift.

[0249] Aspect 7: The method of any one of aspects 4 to 6, further comprising generating a group scheduling indication by multiplying the base sequence by a complex-valued multiplier associated with group scheduling; wherein the scheduling request is transmitted based at least in part on the base sequence and the complex-valued multiplier.

[0250] Aspect 8: The method of any one of Aspects 4 to 7, further comprising wherein the group scheduling indication comprises an identifier of a UE group.

[0251] Aspect 9: The method of any one of aspects 1 to 8, wherein the downlink control information comprises group common downlink control information indicating uplink resource assignments for all UEs in the UE group.

[0252] Aspect 10: The method of aspect 9, further comprising: determining the uplink resources allocated to the UE based at least in part on uplink resource assignments for all UEs in the UE group and an index of the UE.

[0253] Aspect 11: The method of any one of aspects 9 or 10, wherein receiving the group common downlink control information further comprises: descrambling a set of cyclic redundancy check bits based at least in part on a group common radio network temporary identifier (GC-RNTI).

[0254] Aspect 12: A method as in any one of Aspects 9 to 11, wherein the group common downlink control information indicates a multiplexing scheme including a multi-slot scheduling scheme, wherein each UE in the UE group is allocated uplink resources of a different time slot from the uplink resource assignment for all UEs in the UE group.

[0255] Aspect 13: The method of any one of aspects 9 to 12, wherein the group common downlink control information indicates a multiplexing scheme comprising a multi-user multiple-input multiple-output spatial multiplexing scheme, wherein each UE in the UE group is associated with a separate orthogonal code domain multiplexed demodulation reference signal.

[0256] Aspect 14: The method of any one of aspects 1 to 13, further comprising: transmitting a buffer status report on a portion of uplink resources allocated to the UE.

[0257] Aspect 15: A method for performing wireless communications at a base station, comprising: receiving a scheduling request from a user equipment (UE), the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission; determining downlink control information for the UE based at least in part on the scheduling request, the downlink control information including an indication of uplink resources allocated to the UE based at least in part on the scheduling request; transmitting the downlink control information to the UE; and receiving uplink data from the UE on the uplink resources allocated to the UE.

[0258] Aspect 16: The method as in Aspect 15 further includes: identifying a dedicated uplink resource set for a scheduling request associated with group scheduling; transmitting an indication of a dedicated uplink resource set for a scheduling request associated with group scheduling to a UE; and receiving a scheduling request from the UE on at least one scheduling request resource in the identified dedicated scheduling request resource set.

[0259] Aspect 17: The method of aspect 16, wherein transmitting an indication of a dedicated uplink resource set for a scheduling request associated with group scheduling comprises: transmitting a radio resource control (RRC) message configuring a dedicated uplink resource set for a scheduling request associated with group scheduling.

[0260] Aspect 18: The method of any one of Aspects 16 or 17, further comprising: receiving a group scheduling indication in a scheduling request.

[0261] Aspect 19: The method of aspect 18, wherein the group scheduling indication comprises a set of one or more scheduling mode indicator bits associated with group scheduling.

[0262] Aspect 20: The method of any of aspects 18 or 19, further comprising: receiving a scheduling request based at least in part on a base sequence applied for the scheduling request at the UE and a cyclic shift associated with group scheduling.

[0263] Aspect 21: The method of any one of aspects 18 to 20, further comprising: receiving a scheduling request based at least in part on a base sequence used at the UE to generate the group scheduling information and a complex-valued multiplier associated with the group scheduling.

[0264] Aspect 22: The method of any one of Aspects 18 to 21, wherein the group scheduling indication comprises an identifier of a UE group.

[0265] Aspect 23: The method of any one of aspects 15 to 21, wherein the downlink control information comprises group common downlink control information indicating uplink resource assignments for all UEs in the UE group.

[0266] Aspect 24: The method of aspect 23, wherein the uplink resources allocated to the UE are indicated based at least in part on uplink resource assignments for all UEs in the group of UEs and an index of the UE.

[0267] Aspect 25: The method of any one of aspects 23 or 24, wherein transmitting the group common downlink control information further comprises: scrambling a set of cyclic redundancy check bits based at least in part on a group common radio network temporary identifier (GC-RNTI).

[0268] Aspect 26: A method as in any one of Aspects 23 to 25, wherein the group common downlink control information indicates a multiplexing scheme including a multi-slot scheduling scheme, wherein each UE in the UE group is allocated uplink resources of a different time slot from the uplink resource assignment for all UEs in the UE group.

[0269] Aspect 27: The method of any one of Aspects 23 to 26, wherein the group common downlink control information indicates a multiplexing scheme comprising a multi-user multiple-input multiple-output spatial multiplexing scheme, wherein each UE in the UE group is associated with a separate orthogonal code domain multiplexed demodulation reference signal.

[0270] Aspect 28: The method of any one of aspects 15 to 25, further comprising: receiving a buffer status report on a portion of uplink resources allocated to the UE.

[0271] Aspect 29: An apparatus for wireless communication at a user equipment (UE), comprising at least one means for performing the method of any one of aspects 1 to 14.

[0272] Aspect 30: An apparatus for wireless communication at a user equipment (UE), comprising: at least one processor; a memory coupled to the at least one processor; and instructions stored in the memory and executable by the at least one processor to cause the apparatus to perform any one of the methods of Aspects 1 to 14.

[0273] Aspect 31: A non-transitory computer-readable medium storing code for wireless communication at a user equipment (UE), the code comprising instructions executable by at least one processor to perform the method of any one of aspects 1 to 14.

[0274] Aspect 32: An apparatus comprising at least one means for performing the method of any one of aspects 15 to 28.

[0275] Aspect 33: A device comprising: at least one processor; a memory coupled to the at least one processor; and instructions stored in the memory and executable by the at least one processor to cause the device to perform a method as described in any one of Aspects 15 to 28.

[0276] Aspect 34: A non-transitory computer-readable medium storing code, the code comprising instructions executable by at least one processor to perform the method of any one of aspects 15 to 28.

[0277] It should be noted that the methods described herein describe possible implementations, and that the various operations and steps may be rearranged or otherwise modified and other implementations are possible. Furthermore, aspects from two or more methods may be combined.

[0278] Although aspects of LTE, LTE-A, LTE-A Pro, or NR systems may be described for example purposes, and LTE, LTE-A, LTE-A Pro, or NR terminology may be used in much of the description, the techniques described herein may also be applicable to networks other than LTE, LTE-A, LTE-A Pro, or NR networks. For example, the described techniques may be applied to various other wireless communication systems, such as Ultra Mobile Broadband (UMB), Institute of Electrical and Electronics Engineers (IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, and other systems and radio technologies not explicitly mentioned herein.

[0279] The information and signals described herein may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be referred to throughout this description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, or any combination thereof.

[0280] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or performed with a general purpose processor, a DSP, an ASIC, a CPU, an 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. A general purpose processor may be a microprocessor, but in the alternative, 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, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration).

[0281] The functions described herein can be implemented in hardware, software executed by at least one processor, or any combination thereof. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executables, threads of execution, procedures, or functions, whether it is described in software, firmware, middleware, microcode, hardware description language, or other terms. If implemented in software executed by at least one processor, each function can be stored on a computer-readable medium or transmitted therefrom as one or more instructions or codes. Other examples and implementations fall within the scope of the present disclosure and the appended claims. For example, due to the nature of software, the functions described herein can be implemented using software, hardware, hard wiring, or any combination thereof executed by at least one processor. The features that implement the functions can also be physically located in various locations, including being distributed so that the various parts of the functions are implemented at different physical locations.

[0282] Computer readable medium includes both non-transient computer storage medium and communication medium, and it includes any medium that facilitates computer program to transfer from one place to another place.Non-transient storage medium can be any available medium that can be accessed by general or special-purpose computer.As an example and not limitation, non-transient computer readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), flash memory, compact disk (CD) ROM or other optical disk storage, disk storage or other magnetic storage device, or can be used to carry or store instruction or data structure form of desired program code means and can be accessed by general or special-purpose computer or general or special-purpose processor any other non-transient medium.Similarly, any connection is also properly referred to as computer readable medium.For example, if software is transmitted from website, server or other remote source using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or wireless technology such as infrared, radio and microwave, then the coaxial cable, optical fiber cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are just included in the definition of computer readable medium. Disk and disc as used herein include CDs, laser discs, optical discs, digital versatile discs (DVDs), floppy disks, and Blu-ray discs, where disks usually reproduce data magnetically, while discs reproduce data optically with lasers. Combinations of the above are also included within the scope of computer-readable media.

[0283] As used herein (including in the claims), "or" used in a listing of items (e.g., a listing of items with a phrase such as "at least one of" or "one or more of") indicates an inclusive listing, such that, for example, a listing of at least one of 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). Likewise, 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 the present disclosure. In other words, as used herein, the phrase "based on" should be interpreted in the same manner as the phrase "based at least in part on". As used herein, the term "and / or" used in a listing of two or more items means that any of the listed items may be employed alone, or any combination of two or more of the listed items may be employed. For example, if a composition is described as comprising components A, B, and / or C, the composition may comprise only A; only B; only C; a combination of A and B; a combination of A and C; a combination of B and C; or a combination of A, B, and C.

[0284] In the accompanying drawings, similar components or features may have the same reference number. In addition, various components of the same type may be distinguished by following the reference number with a dash and a second reference number that distinguishes between similar components. If only the first reference number is used in the specification, the description may apply to any of the similar components having the same first reference number regardless of the second reference number, or other subsequent reference numbers.

[0285] The descriptions set forth herein in conjunction with the accompanying drawings describe example configurations and do not represent all examples that can be implemented or fall within the scope of the claims. The term "example" as used herein means "used as an example, instance, or illustration" and does not mean "better than" or "better than 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.

[0286] The description herein is provided to enable one of ordinary skill in the art to make or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the universal principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Thus, the present 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 wireless communication at a user equipment (UE), comprising: transmitting a scheduling request to a base station, the scheduling request comprising an indication of uplink resources requested by a group of UEs for data transmission, the group of UEs comprising a plurality of UEs; receiving, from the base station, downlink control information based at least in part on the scheduling request, the downlink control information comprising an indication of uplink resources allocated to the UE based at least in part on the scheduling request; as well as Uplink data is transmitted to the base station using the uplink resources allocated to the UE.

2. The method of claim 1, further comprising: A set of dedicated uplink resources for a scheduling request associated with group scheduling is identified, wherein the scheduling request is transmitted to the base station using at least one scheduling request resource in the identified set of dedicated scheduling request resources.

3. The method of claim 2, wherein identifying the set of dedicated uplink resources for a scheduling request associated with group scheduling comprises: A radio resource control (RRC) message is received configuring the dedicated uplink resource set for a scheduling request associated with group scheduling.

4. The method of claim 1, further comprising: The scheduling request includes a group scheduling indication.

5. The method of claim 4, wherein the group scheduling indication comprises a set of one or more scheduling mode indicator bits associated with group scheduling.

6. The method of claim 4, further comprising: generating the group scheduling indication by applying a cyclic shift associated with the group scheduling to a base sequence; Wherein the scheduling request is transmitted based at least in part on the base sequence and the cyclic shift.

7. The method of claim 4, further comprising: generating the group scheduling indication by multiplying a base sequence by a complex-valued multiplier associated with group scheduling; Wherein the scheduling request is transmitted based at least in part on the base sequence and the complex-valued multiplier.

8. The method of claim 4, wherein the group scheduling indication comprises an identifier of the UE group.

9. The method of claim 1, wherein the downlink control information comprises group common downlink control information indicating uplink resource assignments for all UEs in the group of UEs.

10. The method of claim 9, further comprising: Uplink resources allocated to the UE are determined based at least in part on the uplink resource assignments for all UEs in the group of UEs and an index of the UE.

11. The method of claim 9, wherein receiving the group common downlink control information further comprises: The set of cyclic redundancy check bits is descrambled based at least in part on a Group Common Radio Network Temporary Identifier (GC-RNTI).

12. The method of claim 9, wherein the group-common downlink control information indicates a multiplexing scheme including a multi-slot scheduling scheme, wherein each UE in the UE group is allocated uplink resources of a different time slot from the uplink resource assignment for all UEs in the UE group.

13. The method of claim 9, wherein the group-common downlink control information indicates a multiplexing scheme comprising a multi-user multiple-input multiple-output spatial multiplexing scheme, wherein each UE in the group of UEs is associated with a separate orthogonal code domain multiplexed demodulation reference signal.

14. The method of claim 1, further comprising: A buffer status report is transmitted on a portion of the uplink resources allocated to the UE.

15. A method for wireless communication at a base station, comprising: receiving a scheduling request from a user equipment (UE), the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission, the group of UEs comprising a plurality of UEs; determining downlink control information for the UE based at least in part on the scheduling request, the downlink control information comprising an indication of uplink resources allocated to the UE based at least in part on the scheduling request; transmitting the downlink control information to the UE; as well as Uplink data is received from the UE on the uplink resources allocated to the UE.

16. The method of claim 15, further comprising: identifying a dedicated uplink resource set for a scheduling request associated with group scheduling; transmitting, to the UE, an indication of the set of dedicated uplink resources for a scheduling request associated with group scheduling; as well as The scheduling request is received from the UE on at least one scheduling request resource in the identified set of dedicated scheduling request resources.

17. The method of claim 16, wherein transmitting an indication of the dedicated uplink resource set for a scheduling request associated with group scheduling comprises: A radio resource control (RRC) message is transmitted configuring the dedicated uplink resource set for a scheduling request associated with group scheduling.

18. The method of claim 16, further comprising: A group scheduling indication is received in the scheduling request.

19. The method of claim 18, wherein the group scheduling indication comprises a set of one or more scheduling mode indicator bits associated with group scheduling.

20. The method of claim 18, further comprising: A scheduling request is received based at least in part on a base sequence applied for a scheduling request at the UE and a cyclic shift associated with group scheduling.

21. The method of claim 18, further comprising: The scheduling request is received based at least in part on a base sequence used to generate group scheduling information at the UE and a complex-valued multiplier associated with group scheduling.

22. The method of claim 18, wherein the group scheduling indication comprises an identifier of the UE group.

23. The method of claim 15, wherein the downlink control information comprises group common downlink control information indicating uplink resource assignments for all UEs in the group of UEs.

24. The method of claim 23, wherein the uplink resources allocated to the UE are indicated based at least in part on the uplink resource assignments for all UEs in the group of UEs and an index of the UE.

25. The method of claim 23, wherein transmitting the group common downlink control information further comprises: The set of cyclic redundancy check bits is scrambled based at least in part on a Group Common Radio Network Temporary Identifier (GC-RNTI).

26. The method of claim 23, wherein the group-common downlink control information indicates a multiplexing scheme including a multi-slot scheduling scheme, wherein each UE in the UE group is allocated uplink resources of a different time slot from the uplink resource assignment for all UEs in the UE group.

27. The method of claim 23, wherein the group-common downlink control information indicates a multiplexing scheme comprising a multi-user multiple-input multiple-output spatial multiplexing scheme, wherein each UE in the group of UEs is associated with a separate orthogonal code domain multiplexed demodulation reference signal.

28. The method of claim 15, further comprising: A buffer status report is received on a portion of the uplink resources allocated to the UE.

29. An apparatus for wireless communication at a user equipment (UE), comprising: at least one processor; a memory coupled to the at least one processor; as well as instructions stored in the memory and executable by the at least one processor to cause the apparatus to: transmitting a scheduling request to a base station, the scheduling request comprising an indication of uplink resources requested by a group of UEs for data transmission, the group of UEs comprising a plurality of UEs; receiving, from the base station, downlink control information based at least in part on the scheduling request, the downlink control information comprising an indication of uplink resources allocated to the UE based at least in part on the scheduling request; as well as Uplink data is transmitted to the base station using the uplink resources allocated to the UE.

30. An apparatus for wireless communication at a base station, comprising: at least one processor; a memory coupled to the at least one processor; as well as instructions stored in the memory and executable by the at least one processor to cause the apparatus to: receiving a scheduling request from a user equipment (UE), the scheduling request including an indication of uplink resources requested by a group of UEs for data transmission, the group of UEs comprising a plurality of UEs; determining downlink control information for the UE based at least in part on the scheduling request, the downlink control information comprising an indication of uplink resources allocated to the UE based at least in part on the scheduling request; transmitting the downlink control information to the UE; as well as Uplink data is received from the UE on the uplink resources allocated to the UE.

Images