Techniques and apparatus for wake-up signal design and resource allocation

Abstract

Methods, apparatus, base stations, user equipment, and computer program products for wireless communication are provided. A base station can configure a resource allocation for wake-up signaling based at least in part on one or more resource patterns corresponding to different user equipment groups and / or antenna port configurations. A user equipment can receive a wake-up signal based at least in part on the resource allocation; detect the wake-up signal based at least in part on a preamble of the wake-up signal; and receive a subsequent communication based at least in part on the wake-up signal. Numerous other aspects are provided.

Description

[0001] This application is a divisional application of Chinese patent application No. 201880061734.7, filed on September 18, 2018, entitled "Technology and apparatus for wake-up signal design and resource allocation".

[0002] Cross-reference to relevant applications based on 35 U.SC § 119

[0003] This application claims priority to U.S. Provisional Patent Application No. 62 / 565,767, filed September 29, 2017, entitled “TECHNIQUES AND APPARATUSES FOR WAKEUP SIGNAL DESIGN AND RESOURCE ALLOCATION,” and U.S. Non-Provisional Patent Application No. 16 / 031,671, filed July 10, 2018, entitled “TECHNIQUES AND APPARATUSES FOR WAKEUP SIGNAL DESIGN AND RESOURCE ALLOCATION,” which are expressly incorporated herein by reference. Technical Field

[0004] In general, various aspects of this disclosure relate to wireless communication; more specifically, various aspects of this disclosure relate to techniques and apparatus for wake-up signal design and resource allocation. Background Technology

[0005] Wireless communication systems are widely deployed to provide a variety of telecommunications services such as telephone, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, and / or similar). Examples of such multiple access technologies include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems, Orthogonal Frequency Division Multiple Access (OFDMA) systems, Single Carrier Frequency Division Multiple Access (SC-FDMA) systems, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE / Improved LTE is a collection of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the 3rd Generation Partnership Project (3GPP).

[0006] A wireless communication network may include multiple base stations (BSs) capable of supporting communication for multiple user equipments (UEs). UEs may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to the communication link from the BS to the UE, and an uplink (or reverse link) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, Access Point (AP), Radio Headend, Transmitter Receiver Point (TRP), 5G BS, 5G Node B, and / or similar.

[0007] The aforementioned multiple access technologies have been adopted in various telecommunications standards to provide a common protocol enabling different wireless communication devices to communicate at the city, national, regional, and even global levels. 5G (also known as New Radio (NR)) is a collection of enhancements to the LTE mobile standard released by the 3rd Generation Partnership Project (3GPP). 5G is designed to better support mobile broadband internet access by improving spectrum efficiency, reducing costs, improving service, using new spectrum, and better integrating with other open standards such as Orthogonal Frequency Division Multiplexing (OFDM) with Cyclic Prefix (CP) on the downlink (DL) and CP-OFDM and / or SC-FDM (e.g., also known as Discrete Fourier Transform Extended OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technologies, and carrier aggregation. However, with the continued increase in demand for mobile broadband access, there is a need for further improvements to LTE and 5G technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunications standards that employ these technologies.

[0008] The BS can send a signal to the UE to indicate whether the UE should decode subsequent communications (e.g., downlink channels). This signal (which may be a sequence carrying limited indicative information) is associated with the timing of potential subsequent communications carrying more information. This can improve the UE's battery efficiency because the UE can avoid scanning for subsequent communications unless it receives the signal. For example, such a signal could be called a wake-up signal. Summary of the Invention

[0009] In some cases, a wake-up signal can be applied to multiple UEs. By assigning a UE to two or more UE groups, a single wake-up signal can be used to wake up all UEs in the UE group. This can be more efficient than sending a wake-up signal to a single UE, and more efficient than waking up all UEs (rather than just a group of UEs) for subsequent communication. Implementing diversity (e.g., frequency diversity, time diversity, and / or spatial diversity) for wake-up signals destined for different UE groups can be beneficial.

[0010] Some of the techniques and apparatuses described herein provide resource allocation to achieve frequency diversity, time diversity, and / or spatial diversity for wake-up signals destined for two or more UE groups by transmitting wake-up signals according to respective resource patterns associated with two or more UE groups. Additionally, some of the techniques and apparatuses described herein provide resource allocation to achieve spatial diversity for wake-up signals for a single UE group by transmitting wake-up signals using two or more antenna ports, two or more antennas of a single port, or two or more precoding sets of precoding periods according to respective resource patterns associated with two or more antenna ports, antennas, or precoding sets. The techniques and apparatuses described herein can be applied to anchored carriers (e.g., carriers including broadcast channels, system information blocks, and / or synchronization signals) or to non-anchored carriers.

[0011] Furthermore, some of the techniques and apparatuses described herein provide a wake-up signal transmission associated with a configured delay between the transmission of the wake-up signal and the transmission of other signals (e.g., physical downlink control channel, physical downlink shared channel, etc.) that can be scheduled for the UE at least in part based on the UE's capabilities. Further, some of the techniques and apparatuses described herein provide resource allocation for wake-up signals associated with repetitive communications, such that UEs unable to decode repetitive communications are not woken up. In this way, the resource allocation for wake-up signals is improved, the efficiency of UEs and UE groups for wake-up signaling is enhanced, and the diversity of wake-up signaling is improved.

[0012] It is worth noting that while the technologies and apparatus described herein may be described with respect to two UE groups, the technologies and apparatus described herein are not limited to resource allocation for two UE groups. For example, some of the technologies and apparatus described herein can be applied to three UE groups, four UE groups, five UE groups, or any number of UE groups.

[0013] In this disclosure, methods performed by a base station, methods performed by a user equipment, apparatus, base station, user equipment, and computer program products are provided.

[0014] In some aspects, the method performed by the base station may include: sending a wake-up signal using a resource selected from one or more first resources in a first resource mode or one or more second resources in a second resource mode, wherein the resource is selected from the one or more first resources or the one or more second resources based at least in part on whether the wake-up signal is for a user equipment (UE) associated with a first UE group or a second UE group; and / or sending communication to the UE based at least in part on the wake-up signal.

[0015] In some aspects, the base station may include a memory and at least one processor coupled to the memory. The at least one processor may be configured to: send a wake-up signal using a resource selected from one or more first resources in a first resource mode or one or more second resources in a second resource mode, wherein the resource is selected from the one or more first resources or the one or more second resources based at least in part on whether the wake-up signal is for a UE associated with a first UE group or a second UE group; and / or send communications to the UE based at least in part on the wake-up signal.

[0016] In some aspects, the apparatus may include: a unit for transmitting a wake-up signal using a resource selected from one or more first resources in a first resource mode or one or more second resources in a second resource mode, wherein the resource is selected from the one or more first resources or the one or more second resources based at least in part on whether the wake-up signal is for a UE associated with a first UE group or a second UE group; and / or a unit for transmitting communication to the UE based at least in part on the wake-up signal.

[0017] In some aspects, a computer program product may include a non-transitory computer-readable medium storing computer-executable code. The code may include: code for sending a wake-up signal using a resource selected from one or more first resources in a first resource mode or one or more second resources in a second resource mode, wherein the resource is selected from the one or more first resources or the one or more second resources based at least in part on whether the wake-up signal is for a UE associated with a first UE group or a second UE group; and / or code for sending communication to the UE based at least in part on the wake-up signal.

[0018] In some aspects, the method performed by the user equipment may include: scanning specific resources in a resource mode to identify a wake-up signal associated with a UE group including the user equipment, wherein the resource mode is associated with the UE group; and / or identifying the wake-up signal based at least in part on at least one of a cell identifier or a UE group identifier associated with the user equipment, wherein at least a portion of the cell identifier or at least a portion of the UE group identifier is identified by the wake-up signal.

[0019] In some aspects, the user equipment may include a memory and at least one processor coupled to the memory. The at least one processor may be configured to: scan a specific resource in a resource mode to identify a wake-up signal associated with a UE group including the user equipment, wherein the resource mode is associated with the UE group; and / or identify the wake-up signal based at least in part on at least one of a cell identifier or a UE group identifier associated with the user equipment, wherein at least a portion of the cell identifier or at least a portion of the UE group identifier is identified by the wake-up signal.

[0020] In some aspects, the apparatus may include: a unit for scanning a specific resource in a resource mode to identify a wake-up signal associated with a UE group including the apparatus, wherein the resource mode is associated with the UE group; and / or a unit for identifying the wake-up signal based at least in part on at least one of a cell identifier or a UE group identifier associated with the apparatus, wherein at least a portion of the cell identifier or at least a portion of the UE group identifier is identified by the wake-up signal.

[0021] In some aspects, a computer program product may include a non-transitory computer-readable medium storing computer-executable code. The code may include: code for scanning specific resources in a resource pattern to identify a wake-up signal associated with a UE group including the UE, wherein the resource pattern is associated with the UE group; and / or code for identifying the wake-up signal based at least in part on at least one of a cell identifier or a UE group identifier associated with the UE, wherein at least a portion of the cell identifier or at least a portion of the UE group identifier is identified by the wake-up signal.

[0022] In some aspects, the method performed by the base station may include: transmitting a wake-up signal using a resource selected from one of the following: one or more first resources in a first resource mode corresponding to the transmission of a wake-up signal using a first antenna port, or one or more second resources in a second resource mode corresponding to the transmission of a wake-up signal using a second antenna port; and transmitting communication to a user equipment (UE) based at least in part on the wake-up signal.

[0023] In some aspects, the base station may include a memory and at least one processor coupled to the memory. The at least one processor may be configured to: transmit a wake-up signal using resources selected from one of the following: one or more first resources in a first resource mode corresponding to the transmission of a wake-up signal using a first antenna port, or one or more second resources in a second resource mode corresponding to the transmission of a wake-up signal using a second antenna port; and transmit communications to a user equipment (UE) at least in part based on the wake-up signal.

[0024] In some aspects, the apparatus may include: a unit for transmitting a wake-up signal using a resource selected from one of the following: one or more first resources in a first resource mode corresponding to the transmission of a wake-up signal using a first antenna port, or one or more second resources in a second resource mode corresponding to the transmission of a wake-up signal using a second antenna port; and a unit for transmitting communication to a user equipment (UE) based at least in part on the wake-up signal.

[0025] In some aspects, a computer program product may include a non-transitory computer-readable medium storing computer-executable code. The code may include: code for transmitting a wake-up signal using resources selected from one of the following: one or more first resources in a first resource mode corresponding to the transmission of a wake-up signal using a first antenna port, or one or more second resources in a second resource mode corresponding to the transmission of a wake-up signal using a second antenna port; and code for transmitting communication to a user equipment (UE) at least in part based on the wake-up signal.

[0026] In some aspects, the method performed by the user equipment (UE) may include: scanning specific resources of a resource mode to identify a wake-up signal associated with the UE; receiving the wake-up signal from a base station on the specific resource of the resource mode, wherein the resource mode corresponds to an antenna port through which the wake-up signal is transmitted; and identifying the wake-up signal associated with the UE based at least in part on a cell identifier associated with the UE, wherein at least a portion of the cell identifier is indicated by the wake-up signal.

[0027] In some aspects, the user equipment (UE) may include a memory and at least one processor coupled to the memory. The at least one processor may be configured to: scan specific resources of a resource mode to identify a wake-up signal associated with the UE; receive the wake-up signal from a base station on the specific resource of the resource mode, wherein the resource mode corresponds to an antenna port via which the wake-up signal is transmitted; and identify the wake-up signal associated with the UE based at least in part on a cell identifier associated with the UE, wherein at least a portion of the cell identifier is indicated by the wake-up signal.

[0028] In some aspects, the apparatus may include: a unit for scanning a specific resource of a resource mode to identify a wake-up signal associated with the apparatus; a unit for receiving the wake-up signal from a base station on the specific resource of the resource mode, wherein the resource mode corresponds to an antenna port through which the wake-up signal is transmitted; and a unit for identifying the wake-up signal associated with the apparatus based at least in part on a cell identifier associated with the apparatus, wherein at least a portion of the cell identifier is indicated by the wake-up signal.

[0029] In some aspects, a computer program product may include a non-transitory computer-readable medium storing computer-executable code. The code may include: code for scanning specific resources of a resource mode to identify a wake-up signal associated with the UE; code for receiving the wake-up signal from a base station on the specific resources of the resource mode, wherein the resource mode corresponds to an antenna port through which the wake-up signal is transmitted; and code for identifying the wake-up signal associated with the UE based at least in part on a cell identifier associated with the UE, wherein at least a portion of the cell identifier is indicated by the wake-up signal.

[0030] The aspects generally include, as described herein with reference to the accompanying drawings and description, and as illustrated by the accompanying drawings and description, methods, apparatus, systems, computer program products, non-transitory computer-readable media, base stations, user equipment, wireless communication equipment, and processing systems.

[0031] To better understand the specific embodiments described below, the features and technical advantages of the examples have been outlined rather broadly based on this disclosure. Further features and advantages will be described below. The disclosed concepts and specific examples can readily serve as a basis for modifying or designing other structures to achieve the same purpose as this disclosure. These equivalent structures do not depart from the scope of the appended claims. The characteristics (organization and operation) and related advantages of the concepts disclosed herein will be better understood in conjunction with the accompanying drawings, based on the description below. Each of the drawings is provided for illustrative and descriptive purposes and is not intended to define limitations of the claims. Attached Figure Description

[0032] Figure 1 This is a diagram illustrating an example of a wireless communication network.

[0033] Figure 2 This is a diagram illustrating an example of a base station communicating with a UE in a wireless communication network.

[0034] Figure 3 This is a diagram illustrating an example of the frame structure in a wireless communication network.

[0035] Figure 4 This is a diagram showing two exemplary subframe formats with a normal cyclic prefix.

[0036] Figures 5A-5C This is a diagram illustrating an example of time-division multiplexing (TDM) and / or antenna port modes used for wake-up signal transmission.

[0037] Figure 6 This is a diagram illustrating an example of a frequency division multiplexing (FDM) mode used for wake-up signal transmission.

[0038] Figure 7 This is a flowchart of a wireless communication method.

[0039] Figure 8 This is a flowchart of a wireless communication method.

[0040] Figure 9 This is a flowchart of a wireless communication method.

[0041] Figure 10 This is a flowchart of a wireless communication method.

[0042] Figure 11 It is a conceptual data flow diagram illustrating the data flow between different modules / units / components in the example device.

[0043] Figure 12 This is a diagram illustrating an example of a hardware implementation scheme for a device employing a processing system.

[0044] Figure 13 It is a conceptual data flow diagram illustrating the data flow between different modules / units / components in the example device.

[0045] Figure 14 This is a diagram illustrating an example of a hardware implementation scheme for a device employing a processing system. Detailed Implementation

[0046] The specific embodiments described below with reference to the accompanying drawings are intended as descriptions of various configurations, and not as representations of configurations in which the concepts described herein can be practiced. Specific details are included in the specific embodiments for the purpose of providing a comprehensive understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts can be practiced without these specific details. In some instances, well-known structures and components are shown in block diagram form to avoid obscuring such concepts.

[0047] Several aspects of a telecommunications system will now be described with reference to various apparatuses and methods. These apparatuses and methods will be described in the detailed embodiments below and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, and / or similar elements (collectively, “elements”). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether such an element is implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0048] For example, an element, any part of an element, or any combination of elements can be implemented using a "processing system" comprising one or more processors. Examples of processors include microprocessors, microcontrollers, digital signal processors (DSPs), field-programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described throughout this disclosure. One or more processors in the processing system can execute software. Whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise, software should be interpreted broadly as meaning instructions, instruction sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, and / or similar.

[0049] Accordingly, in one or more example embodiments, the described functionality can be implemented using hardware, software, firmware, or any combination thereof. If implemented in software, the functionality can be stored on or encoded as one or more instructions or code on a computer-readable medium. A computer-readable medium includes a computer storage medium. The storage medium can be any available medium accessible by a computer. By way of example, and not limitation, such a computer-readable medium can include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), compact disc ROM (CD-ROM) or other optical disk storage, magnetic disk storage or other magnetic storage devices, combinations of computer-readable media of the types described above, or any other medium that can be used to store computer-executable code in the form of instructions or data structures accessible by a computer.

[0050] It should be noted that while the terms commonly associated with 3G and / or 4G wireless technologies may be used to describe the aspects herein, the aspects of this disclosure may be applied to communication systems based on other generations (such as 5G and beyond), including 5G technology.

[0051] Figure 1 This is a diagram illustrating a network 100 in which aspects of this disclosure can be practiced. Network 100 can be an LTE network or some other wireless network, such as a 5G network. Wireless network 100 can include multiple BS 110s (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and can also be referred to as a base station, 5G BS, Node B, gNB, 5G NB, access point, Transmit / Receive Point (TRP), and / or similar. Each BS can provide communication coverage for a specific geographic area. In 3GPP, the term "cell," depending on the context in which the term is used, can refer to the coverage area of ​​a BS and / or the BS subsystem serving that coverage area.

[0052] A BS can provide communication coverage for macrocells, picocells, femtocells, and / or other types of cells. A macrocell can cover a relatively large geographic area (e.g., a radius of several kilometers) and allow unrestricted access for UEs with service subscriptions. A picocell can cover a relatively small geographic area and allow unrestricted access for UEs with service subscriptions. A femtocell can cover a relatively small geographic area (e.g., a home) and allow restricted access for UEs associated with that femtocell (e.g., UEs in a Closed Subscriber Group (CSG)). A BS for macrocells may be referred to as a macro BS. A BS for picocells may be referred to as a pico BS. A BS for femtocells may be referred to as a femto BS or a home BS. Figure 1 In the example shown, BS 110a can be a macro BS for macro cell 102a; BS 110b can be a pico BS for pico cell 102b; and BS 110c can be a femto BS for femto cell 102c. A BS can support one or more (e.g., three) cells. The terms “eNB,” “base station,” “5G BS,” “gNB,” “TRP,” “AP,” “Node B,” “5G NB,” and “cell” are used interchangeably herein.

[0053] In some examples, the cell may not be fixed, and the geographical area of ​​the cell may move depending on the location of the mobile BS. In some examples, BSs may interconnect with each other and / or access one or more other BSs or network nodes (not shown) in network 100 using any suitable transport network via various types of backhaul interfaces (such as direct physical connections, virtual networks, and / or similar).

[0054] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station can also be a UE capable of relaying transmissions for other UEs. Figure 1 In the example shown, relay station 110d can communicate with macro BS 110a and UE 120d to facilitate communication between BS 110a and UE 120d. A relay station may also be referred to as a relay BS, relay base station, relay, and / or similar.

[0055] Wireless network 100 can be a heterogeneous network comprising different types of Base Stations (BSs) (e.g., macro BSs, pico BSs, femto BSs, relay BSs, and / or similar). These different types of BSs can have different transmit power levels, different coverage areas, and different effects on interference in wireless network 100. For example, macro BSs can have high transmit power levels (e.g., 5 to 40 watts), while pico BSs, femto BSs, and relay BSs can have lower transmit power levels (e.g., 0.1 to 2 watts).

[0056] Network controller 130 can be coupled to a collection of BSs and can provide coordination and control for these BSs. Network controller 130 can communicate with the BSs via backhaul. BSs can also communicate with each other directly or indirectly, for example, via wireless or wired backhaul.

[0057] UE 120 (e.g., 120a, 120b, 120c) may be distributed throughout the wireless network 100, and each UE may be fixed or mobile. UE may also be referred to as an access terminal, terminal, mobile station, user unit, station, etc. UE may be a cellular phone (e.g., a smartphone), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, cordless phone, wireless local loop (WLL) station, tablet computer, camera, gaming device, netbook, smartbook, ultrabook, medical device or equipment, biometric sensor / device, wearable device (smartwatch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet)), entertainment device (e.g., music or video device, or satellite radio unit), vehicle component or sensor, smart meter / sensor, industrial manufacturing equipment, GPS device, or any other suitable device configured to communicate via wireless or wired media.

[0058] Some UEs can be considered Machine-Type Communication (MTC) or Evolved or Enhanced Machine-Type Communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices such as sensors, meters, monitors, location tags, etc., that can communicate with a base station, another device (e.g., a remote device), or some other entity. Wireless nodes can provide, for example, connectivity to or from a network (e.g., a wide area network such as the Internet or cellular networks) via wired or wireless communication links. Some UEs can be considered Internet of Things (IoT) devices and / or can be implemented as NB-IoT (Narrowband Internet of Things) devices. Some UEs can be considered Customer Premises Equipment (CPE). UE 120, such as NB-IoT or eMTC UE 120, can remain in a sleep or idle state until a wake-up signal is received. The wake-up signal can indicate that communication has been scheduled for UE 120. In some aspects described elsewhere herein, UE 120 can be grouped into UE groups, which can improve the efficiency of wake-up signal usage.

[0059] In summary, any number of wireless networks can be deployed in a given geographical area. Each wireless network can support a specific RAT and can operate on one or more frequencies. A RAT can also be referred to as a wireless technology, air interface, and / or similar. A frequency can also be referred to as a carrier, frequency channel, and / or similar. Within a given geographical area, each frequency can support a single RAT to avoid interference between wireless networks using different RATs. In some cases, a 5GRAT network can be deployed.

[0060] In some examples, access to the air interface can be scheduled, where a scheduling entity (e.g., a base station) allocates resources for communication between some or all devices and apparatuses within the scheduling entity's service area or cell. Within this disclosure, as further discussed below, the scheduling entity may be responsible for scheduling, assigning, reconfiguring, and releasing resources for one or more subordinate entities. That is, for scheduled communication, the subordinate entity utilizes the resources allocated by the scheduling entity.

[0061] A base station is not the only entity that can be used as a scheduling entity. That is, in some examples, a UE can act as a scheduling entity, scheduling resources for one or more subordinate entities (e.g., one or more other UEs). In this example, the UE acts as the scheduling entity, and other UEs utilize the resources scheduled by the UE for wireless communication. A UE can act as a scheduling entity in peer-to-peer (P2P) networks and / or mesh networks. In the mesh network example, in addition to communicating with the scheduling entity, UEs can optionally communicate directly with each other.

[0062] Therefore, in a wireless communication network with scheduled access to time-frequency resources and cellular, P2P, and mesh configurations, a scheduling entity and one or more subordinate entities can communicate using the scheduled resources.

[0063] As mentioned above, Figure 1 This is provided as an example only. Other examples are possible and may differ from those provided. Figure 1 The example described.

[0064] Figure 2 Block diagram 200 shows the design of BS 110 and UE 120, which can be... Figure 1 The base station BS 110 can be equipped with T antennas 234a to 234t, and the UE 120 can be equipped with R antennas 252a to 252r, where T ≥ 1 and R ≥ 1.

[0065] At BS 110, transmit processor 220 can receive data for one or more UEs from data source 212, select one or more modulation and coding schemes (MCS) for that UE based at least in part on the channel quality indicator (CQI) received from each UE, process (e.g., code and modulate) the data for that UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. Transmit processor 220 can also process system information (e.g., semi-static resource allocation information (SRPI) and / or similar) and control information (e.g., CQI requests, grants, upper-layer signaling, and / or similar), and provide overhead symbols and control symbols. Transmit processor 220 can also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS), narrowband reference signals (NRS)) and synchronization signals (e.g., primary synchronization signal (PSS) and secondary synchronization signal (SSS), narrowband PSS (NPSS) and narrowband SSS (NSSS)). If applicable, the transmit (TX) multiple-input multiple-output (MIMO) processor 230 can perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, and can provide T output symbol streams to T modulators (MODs) 232a to 232t. Each modulator 232 can (e.g., for OFDM and / or similar) process its respective output symbol stream to obtain an output sample stream. Each modulator 232 can further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. The T downlink signals from modulators 232a to 232t can be transmitted separately via T antennas 234a to 234t. According to certain aspects described in more detail below, position coding can be used to generate synchronization signals to transmit additional information.

[0066] At UE 120, antennas 252a to 252r can receive downlink signals from BS 110 and / or other base stations and can provide the received signals to demodulators (DEMODs) 254a to 254r respectively. Each demodulator 254 can adjust (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain an input sample. Each demodulator 254 can further process the input sample (e.g., for OFDM and / or similar) to obtain received symbols. MIMO detector 256 can obtain the received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols if applicable, and provide the detected symbols. Receive (RX) processor 258 can process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor can determine the Reference Received Power (RSRP), Received Signal Strength Indicator (RSSI), Reference Received Quality (RSRQ), Channel Quality Indicator (CQI), and / or similar parameters. In some aspects, as described elsewhere herein, the channel processor can determine the reference values ​​based at least in part on the wake-up signal.

[0067] On the uplink, at UE 120, transmit processor 264 can receive and process data from data source 262 and control information from controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, and / or similar reports). Transmit processor 264 can also generate reference symbols for one or more reference signals. If applicable, the symbols from transmit processor 264 can be pre-encoded by TX MIMO processor 266, further processed by modulators 254a to 254r (e.g., for DFT-s-OFDM, CP-OFDM, and / or similar), and transmitted to BS 110. At BS 110, uplink signals from UE 120 and other UEs can be received by antenna 234, processed by demodulator 232, detected by MIMO detector 236 if applicable, and further processed by receive processor 238 to obtain decoded data and control information transmitted by UE 120. The receiver processor 238 can provide decoded data to the data sink 239 and decoded control information to the controller / processor 240. The BS 110 may include a communication unit 244, and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0068] The controller / processor 240 of BS 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can execute signaling related to wake-up signal resource allocation. For example, the controller / processor 240 of BS 110, the controller / processor 280 of UE 120, and / or Figure 2 Any other component can perform or direct, for example Figure 7 Method 700 Figure 8 Method 800 Figure 9 Method 900 Figure 10 The operation of method 1000 and / or other procedures as described herein. Memory 242 and 282 may store data and program code for BS 110 and UE 120, respectively. Scheduler 246 may schedule the UE for data transmission on the downlink and / or uplink.

[0069] As mentioned above, providing Figure 2 This is just an example. Other examples are possible and may differ from those mentioned above. Figure 2 The example described.

[0070] Figure 3 An exemplary frame structure 300 for Frequency Division Duplex (FDD) in a telecommunications system (e.g., LTE) is shown. The transmission timeline for each of the downlink and uplink can be divided into units of a radio frame. Each radio frame can have a predetermined duration (e.g., 10 milliseconds (ms)) and can be divided into 10 subframes with indices from 0 to 9. Each subframe can include two time slots. Therefore, each radio frame can include 20 time slots with indices from 0 to 19. Each time slot can include L symbol periods, for example, for a normal cyclic prefix (e.g., ... Figure 3 For example, seven symbol periods are used for the extended cyclic prefix, or six symbol periods for the extended cyclic prefix. The cyclic prefix can be included in a preamble that identifies whether the communication is associated with a specific UE (e.g., based at least in part on a UE group identifier and / or a cell identifier associated with a specific UE). An index from 0 to 2L-1 can be assigned to 2L symbol periods in each subframe.

[0071] While some techniques are described herein using terms such as frame, subframe, time slot, and / or similar, these techniques can be equally applied to other types of wireless communication architectures that may be referred to in 5G using terms other than “frame,” “subframe,” “time slot,” and / or similar terms. In some respects, a wireless communication architecture may refer to periodic, time-limited communication units defined by wireless communication standards and / or protocols.

[0072] In some telecommunications systems (e.g., LTE), the BS can transmit the primary synchronization signal (PSS) and secondary synchronization signal (SSS) on the downlink at the center of the system bandwidth for each cell supported by that BS. For example... Figure 3 As shown, in subframes 0 and 5 of each radio frame with a normal cyclic prefix, the PSS and SSS can be transmitted in symbol periods 6 and 5, respectively. The PSS and SSS can be used by the UE for cell search and acquisition. The BS can transmit a Cell-Specific Reference Signal (CRS) across the entire system bandwidth for each cell supported by the BS. The CRS can be transmitted in certain symbol periods of each subframe and can be used by the UE to perform channel estimation, channel quality measurement, and / or other functions. The BS can also transmit the Physical Broadcast Channel (PBCH) in symbol periods 0 to 3 of slot 1 of certain radio frames. The PBCH can carry some system information. The BS can transmit other system information, such as System Information Blocks (SIBs), on the Physical Downlink Shared Channel (PDSCH) in certain subframes. The BS can transmit control information / data on the Physical Downlink Control Channel (PDCCH) for the first B symbol periods of a subframe, where B can be configurable for each subframe. The BS can transmit traffic data and / or other data on the PDSCH for the remaining symbol periods of each subframe.

[0073] In other systems (such as 5G systems), Node B can transmit these signals or other signals at these locations in the subframe or at different locations.

[0074] As mentioned above, providing Figure 3 This is just an example. Other examples are possible and may differ from those mentioned above. Figure 3 The example described.

[0075] Figure 4 Two exemplary subframe formats, 410 and 420, with normal cyclic prefixes are shown. Available time-frequency resources can be divided into resource blocks. Each resource block can cover 12 subcarriers in a time slot and may include several resource elements. Each resource element can cover one subcarrier in one symbol period and can be used to transmit a modulation symbol that can be real-valued or complex-valued.

[0076] Subframe format 410 can be used with two antennas. The CRS can be transmitted from antennas 0 and 1 in symbol periods 0, 4, 7, and 11. The reference signal is a signal known beforehand to both the transmitter and receiver, and may also be referred to as a pilot signal. The CRS is a cell-specific reference signal, generated, for example, at least in part, based on the cell identifier (ID). Figure 4In this configuration, for a given resource element with a label Ra, modulation symbols can be transmitted from antenna a on that resource element, and modulation symbols can be transmitted from other antennas not on that resource element. Subframe format 420 can be used with four antennas. CRS can be transmitted from antennas 0 and 1 in symbol periods 0, 4, 7, and 11, and from antennas 2 and 3 in symbol periods 1 and 8. For both subframe formats 410 and 420, CRS can be transmitted on equally spaced subcarriers, which can be determined at least in part based on the cell ID. CRS can be transmitted on the same or different subcarriers, depending on their cell IDs. For both subframe formats 410 and 420, resource elements not used for CRS can be used to transmit data (e.g., traffic data, control data, and / or other data).

[0077] The PSS, SSS, CRS and PBCH in LTE are described in 3GPP TS 36.211, which is publicly available and entitled “Evolved Universal Terrestrial Radio Access (E-UTRA); Physical Channels and Modulation”.

[0078] While aspects of the examples described herein may be associated with LTE technology, aspects of this disclosure are applicable to other wireless communication systems, such as 5G technology. 5G may refer to a radio configured to operate according to a new air interface (e.g., different from an air interface based on Orthogonal Frequency Division Multiple Access (OFDMA)) or a fixed transport layer (e.g., different from Internet Protocol (IP)). In each aspect, 5G may utilize Orthogonal Frequency Division Multiplexing (OFDM) with CP (referred to herein as Cyclic Prefix OFDM or CP-OFDM) and / or SC-FDM on the uplink, may utilize CP-OFDM on the downlink, and may include support for half-duplex operation using Time Division Duplex (TDD). In each aspect, 5G may, for example, utilize OFDM with CP (referred to herein as CP-OFDM) and / or Discrete Fourier Transform Extended Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) on the uplink, may utilize CP-OFDM on the downlink, and may include support for half-duplex operation using TDD. 5G can include enhanced mobile broadband (eMBB) services for wide bandwidth (e.g., 80 MHz and above), millimeter wave (mmW) for high carrier frequencies (e.g., 60 GHz), massive MTC (mMTC) for non-backward compatible MTC technologies, and / or mission-critical services for ultra-reliable low-latency communications (URLLC).

[0079] As mentioned above, providing Figure 4 This is just an example. Other examples are possible and may differ from those mentioned above. Figure 4 The example described.

[0080] Figures 5A-5C This is a diagram illustrating an example 500 of TDM and / or antenna port modes used for wake-up signal transmission. The wake-up signal can be a sequence carrying limited indicative information and can be associated with a timing when subsequent communication carrying more information may occur. In some aspects, the wake-up signal can be one bit. Alternatively, the wake-up signal can be two bits. The wake-up signal differs from paging and can carry less information than paging. Additionally or alternatively, the wake-up signal may not require PDCCH and / or PDSCH transmission.

[0081] exist Figures 5A-5C This document describes two UE groups, each associated with a corresponding resource mode. However, the techniques and apparatus described herein are not limited to two UE groups and can be applied to any number of UE groups. For example, more UE groups can be envisioned in implementations. Resources belonging to a first resource mode are shown as WUS1 (wake-up signal 1), and resources belonging to a second resource mode are shown as WUS2 (wake-up signal 2). In some aspects, a resource mode may correspond to a single UE group. Additionally or alternatively, a resource mode may correspond to an antenna port used for transmitting wake-up signals. Additionally or alternatively, a resource mode may correspond to an antenna of an antenna port used for transmitting wake-up signals. For example, a first resource mode may be associated with a first antenna, and a second resource mode may be associated with a second antenna. Additionally or alternatively, a resource mode may correspond to a set of precoders used for transmitting wake-up signals. For example, a first resource mode may be associated with a first precoder set, and a second resource mode may be associated with a second precoder set. A precoder set may include one or more precoder cycle sets, and a precoder cycle may include multiple different precoder sets. In such a case, two or more resource patterns can be associated with a single UE group.

[0082] In some aspects, wake-up signal resources can be associated with multiple resource modes (e.g., three resource modes, five resource modes, or at least two resource modes) corresponding to multiple UE groups and / or antenna ports.

[0083] In addition, Figures 5A-5CThe document illustrates and describes anchored carriers, wherein subframe (SF)0 is used for the PBCH, SF4 for the system information block (e.g., SIB1), SF5 for the primary synchronization signal (NPSS), and SF9 for the secondary synchronization signal (NSSS) in odd-numbered radio frames. However, the techniques and apparatus described herein are applicable to non-anchored carriers, which may not include PBCH, SIB, NPSS, and / or NSSS.

[0084] As shown in Figure 505-1 Figure 5A A first example of TDM mode, antenna port transmission resource mode, antenna transmission resource mode, and / or precoder set resource mode is shown. In the first example, resources of the first resource mode are alternated with resources of the second resource mode. For example, in anchored carriers, WUS1 can be transmitted on subframes (SF) 1, 3, and 7, while WUS2 can be transmitted on subframes 2, 6, and 8. In non-anchored carriers, WUS1 can be transmitted on subframes 0, 2, 4, 6, and 8, while WUS2 can be transmitted on subframes 1, 3, 5, 7, and 9. In this way, time diversity of wake-up signals for the first and second UE groups is achieved, and robustness against transient interference is improved. In some aspects, WUS1 and / or WUS2 can be transmitted using the same antenna port as the NPSS, NSSS, and / or reference signals (e.g., NRS and / or similar), which reduces the delay associated with the receiver of the retuned UE 120.

[0085] In some aspects, WUS1 can be transmitted using the first antenna port of BS 110, and WUS2 can be transmitted using the second antenna port of BS 110. Alternatively or additionally, WUS1 can be transmitted using the first antenna of a specific antenna port, and WUS2 can be transmitted using the second antenna of a specific antenna port. Alternatively or additionally, WUS1 can be transmitted using a first set of precoders, and WUS2 can be transmitted using a second set of precoders (e.g., WUS1 and WUS2 can be transmitted by the same antenna and / or antenna port). In such cases, WUS1 and WUS2 can be associated with the same UE group, and the name of the resource as WUS1 or WUS2 can indicate which antenna port, antenna, and / or precoder set will be used to transmit the wake-up signal in the corresponding resource. Thus, spatial diversity of wake-up signals for the first UE group and the second UE group is achieved.

[0086] like Figure 5BAs shown, the second resource mode 505-2 can transmit WUS1 during subframes 1, 2, and 3 of the anchored carrier, and can transmit WUS2 during subframes 6, 7, and 8 of the anchored carrier. Similar techniques can be used for non-anchored carriers (e.g., subframes 0, 1, 2, 3, and 4 for WUS1 and subframes 5, 6, 7, 8, and 9 for WUS2). This can provide a greater number of simultaneous repetitions of the wake-up signal, which can increase the likelihood that the UE 120 will successfully receive the wake-up signal for multiple repetitions requiring the wake-up signal. Additionally or alternatively, the BS 110 can transmit WUS1 in subframes 1, 2, and 3 using a first antenna port, a first antenna of the antenna port, and / or a first precoder set, and can transmit WUS2 in subframes 6, 7, and 8 using a second antenna port, a second antenna of the antenna port, and / or a second precoder set. In such cases, WUS1 and WUS2 can be associated with the same UE group.

[0087] like Figure 5C As shown, the third resource mode 505-3 can transmit WUS1 in the first frame 510 (e.g., subframes 1, 2, 3, 6, 7, and 8 of the first frame 510) and can transmit WUS2 in the second frame 515 (e.g., subframes 1, 2, 3, 6, 7, and 8 of the second frame 515). For example, the first frame 510 and the second frame 515 can be consecutive frames. This can further increase the possibility of receiving wake-up signals for UEs using multiple repetitions. This technique can be additionally or alternatively applied to non-anchored carriers. Additionally or alternatively, this technique can be applied with respect to first and second antenna ports, first and second antennas of antenna ports, and / or first and second precoder sets associated with specific antennas and / or antenna ports.

[0088] In some aspects, multiple wake-up signals for resource modes can be configurable. For example, BS 110 can specify any number of wake-up signals to be included in resource modes WUS1 and / or WUS2. In this way, the versatility of wake-up signaling is improved, and resources can be allocated more efficiently.

[0089] In some aspects, when transmitting a single wake-up signal (e.g., a single WUS1 or a single WUS2), two or more different antenna ports, two or more antennas of the antenna ports, and / or two or more sets of precoders can be used within a single subframe. For example, a first subset of the symbols of a single wake-up signal can be transmitted from a first antenna port, a first antenna, and / or using a first set of precoders, and a second subset of the symbols of a single wake-up signal can be transmitted from a second antenna port, a second antenna, and / or using a second set of precoders, thereby improving spatial diversity.

[0090] In some aspects, UE 120 can scan for wake-up signals. UE 120 can identify a wake-up signal at least partially based on its preamble. For example, BS 110 can encode the preamble to identify at least a portion of the cell identifier of the cell or serving cell associated with UE 120. Additionally, BS 110 can encode the preamble to identify at least a portion of the UE group identifier that identifies the UE group of UE 120. In some aspects, UE 120 can determine that a wake-up signal is associated with UE 120 when the cell identifier and UE group identifier match the cell identifier and UE group identifier of UE 120, respectively. In some aspects, UE 120 can determine that a wake-up signal is associated with UE 120 when the cell identifier matches the cell identifier of UE 120. In some aspects, UE 120 can determine that a wake-up signal is associated with UE 120 when the UE group identifier matches the UE group identifier of UE 120.

[0091] In some aspects, UE 120 may perform synchronization and / or determine reference values ​​based at least in part on the wake-up signal. For example, BS 110 may configure the power level for the wake-up signal and may provide UE 120 with information identifying the power level (e.g., via SIB, Radio Resource Control (RRC) signaling, and / or the like). In some aspects, the information identifying the power level may include a power offset relative to a synchronization signal or reference signal (e.g., PSS, SSS, NPSS, NSSS, RS, NRS, etc.). UE 120 may perform synchronization and / or determine reference values ​​based at least in part on the power level of the wake-up signal. In some aspects, when no power offset is specified, UE 120 may use a default offset (e.g., 0dB and / or the like).

[0092] In some respects, BS 110 may select the resources for transmitting wake-up signals based at least in part on the UE group identifier and / or paging narrowband of UE 120. For example, BS 110 may use the following formulas 1 to 4 to determine the resources:

[0093] Formula 1: SFN mod T=(T div N)*(UE_ID mod N)

[0094] Formula 2: i_s=floor(UE_ID / N)mod Ns

[0095] Formula 3: PNB=floor(UE_ID / (N*Ns))mod Nn

[0096] Formula 4: UE_Group_ID=floor(UE_ID / (N*Ns*Nn))mod N_WUS_Groups

[0097] Formula 1 is used to identify the paging frame for UE 120 (e.g., System Frame Number (SFN) mod T), where T refers to the Discontinuous Receive (DRX) period; N, defined as min{T, nB}, is the minimum of the T and nB values ​​configured in SIB2 (e.g., nB values ​​of {4T, 2T, T, T / 2, T / 4, T / 8, T / 16, T / 32, T / 64, T / 128, and T / 256, and for NB-IoT, T / 512 and T / 1024), and UE_ID is the UE identifier of UE 120. Formula 2 is an index i_s pointing to the paging timing (PO) of UE 120, based at least in part on UE_ID, N, and Ns. Ns, defined as max{1, nB / T}, is the maximum value of 1 and nB / T.

[0098] Equation 3 identifies the paging narrowband (PNB) of UE 120 at least in part based on UE_ID, N, Ns, and Nn, where Nn identifies the number of available narrowbands and can be provided in the system information. Equation 4 identifies the UE group identifier (UE_Group_ID) of UE 120 at least in part based on UE_ID, N, Ns, and Nn, such that the UEs are further grouped into N_WUS_Groups, where N_WUS_Groups identifies the total number of UE groups. In this way, BS 110 and UE 120 can determine the UE group identifier of UE 120 at least in part based on the parameters of the paging narrowband of UE 120. N_WUS_Groups can be predefined or configured in the system information and / or RRC signaling within a predefined maximum value range of N_WUS_Groups. It is worth noting that the method described above can be performed for any number of UE groups (e.g., any value of N_WUS_Groups).

[0099] In some aspects, BS 110 can provide UE 120 with information indicating parameters of the preamble, and UE 120 can identify the relevant wake-up signal at least in part based on these parameters. In such cases, the UE grouping configuration for UE 120 can be transparent. For example, UE 120 may not know the UE grouping method / criteria, but only knows the assigned preamble with a specific UE group identifier and / or cell identifier included in the preamble, and can search for a preamble that matches the parameters.

[0100] In some aspects, UE 120 may report or transmit information identifying the capabilities of UE 120. For example, UE 120 may report information identifying whether the receiver of UE 120 is configured to recognize legacy synchronization signals. Additionally or alternatively, UE 120 may report information identifying the detection and / or synchronization time of the receiver of UE 120. Additionally or alternatively, UE 120 may report information identifying the synchronization processing time between the wake-up signal and subsequent communication. For example, UE 120 may report information indicating whether UE 120 has a first type of delay (e.g., no delay or 0 milliseconds), a second type of delay (e.g., a shorter delay or approximately 15 milliseconds), or a third type of delay (e.g., a longer delay or approximately 500 milliseconds).

[0101] BS 110 may, at least in part, use information identifying the capabilities of UE 120 to transmit communications after a wake-up signal with a specific delay. In some aspects, UE 120 may scan for communications after a specific delay. Additionally or alternatively, UE 120 may scan for communications over a specific length of time, such as a maximum delay.

[0102] In some respects, UE 120 may monitor specific resources for wake-up signals based at least in part on the repetition configuration of UE 120. For example, UE 120 may require a specific number of repetitions to successfully decode communication (e.g., 1 repetition, 4 repetitions, 16 repetitions, 64 repetitions, 2048 repetitions, etc.). Wake-up UE 120 for communication with fewer repetitions than the specific number of repetitions may not be beneficial, as decoding of the communication is unlikely to be successful.

[0103] Therefore, the length of the wake-up signal resource can be configured at least in part based on the repetition configuration of UE 120. For example, the length of the wake-up signal resource can be determined at least in part based on the maximum number of repetitions of the communication. Wake-up signals can be sent within the wake-up signal resource, and the number of resources for the wake-up signal can be at least in part based on the actual number of repetitions of the communication.

[0104] For example, suppose the maximum number of communication repetitions is 2048. Further suppose UE 120 is configured with a reduction factor of 16. The reduction factor identifies the relationship between the number of communication repetitions and the number of wake-up signal repetitions. In this case, the maximum number of wake-up signal repetitions is a value M of 128 repetitions (e.g., 2048 / 16). If communication is to begin in subframe N, the wake-up signal resources can begin in subframes NM, N-2M, N-3M, etc. More specifically, the wake-up signal resources for UE 120 can begin at subframes NM, N-2M, N-3M, and N-4M respectively. In other words, communication can be associated with four wake-up signal resources starting from NM, N-2M, N-3M, and N-4M.

[0105] Now assume the communication has an actual number of repetitions of 128. In this case, and depending on the reduction factor, the length of the wake-up signal can be 8 repetitions (e.g., 128 / 16). In some aspects, the 8 repetitions of the wake-up signal can begin transmission at the end of each wake-up signal resource (e.g., N-8, N-7, ..., N-1). In some aspects, the 8 repetitions of the wake-up signal can begin transmission at the beginning of each wake-up resource (e.g., NM, N-M+1, ..., N-M+7). In this way, the wake-up signal resources are configured at least in part based on the maximum number of repetitions and the actual number of repetitions of the communication.

[0106] As mentioned above, providing Figures 5A-5C As an example. Other examples are possible and may differ from those regarding... Figures 5A-5C The example described.

[0107] Figure 6 This is a diagram illustrating an example 600 of an FDM mode used for wake-up signal transmission. In some aspects, such as enhanced machine-type communication (eMTC) wireless access technologies, FDM can be used. For example, and as... Figure 6 As shown, the set of resources 605, 610, 615, and 620 used for eMTC communication may include six physical resource blocks (PRBs) that are frequency-parallel. For example, the six PRBs may be associated with a single subframe or frame.

[0108] As shown by reference numeral 605 in the attached figure, in some aspects, the resources of the resource pattern shown by WUS1 can be alternated with the resources of the resource pattern shown by WUS2. This can improve the frequency diversity of the wake-up signal.

[0109] As shown by reference numeral 610 in the attached figure, in some aspects, multiple resources of the resource pattern shown by WUS1 can be continuously allocated in frequency, and multiple resources of the resource pattern shown by WUS2 can be continuously allocated in frequency. In this way, the UE can be able to decode the wake-up signal using multiple repetitions.

[0110] As shown by reference numerals 615 and 620 in the accompanying drawings, in some aspects, the entire bandwidth of the first frame or subframe can be allocated to WUS1, and the entire bandwidth of the second frame or subframe can be allocated to WUS2. In this way, the possibility of decoding wake-up signals for UEs that require multiple repetitions can be further improved.

[0111] In some aspects, frequency hopping techniques can be used to allocate resources for wake-up signals. For example, BS 110 can configure the starting subframe index, frequency offset, and / or hop time for frequency hopping for UE120. BS 110 can allocate resources for the transmission of wake-up signals based on the starting subframe index, frequency offset, and / or hop time.

[0112] As indicated above, provide Figure 6 As an example. Other examples are possible and may differ from those regarding... Figure 6 The example described.

[0113] Figure 7 This is a flowchart of wireless communication method 700. This method can be implemented by a base station (e.g., Figure 1 (The BS 110, device 1102 / 1102' and / or similar) are used to perform this.

[0114] At point 710, the base station can generate a wake-up signal for communication with the UE. For example, the wake-up signal may include a preamble identifying the UE's UE group and / or the UE's cell. The base station can provide the wake-up signal to wake the UE or cause it to exit idle or sleep mode to receive communication.

[0115] At point 720, the base station can use resources selected from one or more first resources of a first resource mode or one or more second resources of a second resource mode to send a wake-up signal. For example, the first resource mode may be associated with a first UE group, and the second resource mode may be associated with a second UE group. The base station can select resources from one or more first resources or one or more second resources, at least in part, based on whether the wake-up signal is to be sent to the first UE group or the second UE group. In some aspects, the base station can select resources from three or more resource modes (e.g., when the base station performs resource allocation for three or more UE groups corresponding to three or more resource modes).

[0116] In some aspects, one or more first resources alternate with one or more second resources in the time domain. In some aspects, one or more first resources are in a first set of subframes, and one or more second resources are in a second set of subframes. In some aspects, a first resource pattern is associated with a first antenna port, and a second resource pattern is associated with a second antenna port. In some aspects, a first resource pattern is associated with a first antenna of an antenna port, and a second resource pattern is associated with a second antenna of an antenna port. In some aspects, a first resource pattern is associated with a first precoder set, and a second resource pattern is associated with a second precoder set. In some aspects, one or more first resources and one or more second resources are included in an anchored carrier. In some aspects, one or more first resources and one or more second resources are included in a non-anchored carrier. In some aspects, a wake-up signal is transmitted using the same antenna port as the synchronization signal or reference signal used for the UE.

[0117] In some aspects, two or more antenna ports within a single subframe are used to transmit wake-up signals. In some aspects, the number of one or more first resources or one or more second resources is configurable. In some aspects, one or more first resources and one or more second resources comprise physical resource blocks (PRBs). In some aspects, one or more first resources alternate with one or more second resources in the frequency domain. In some aspects, resources in one or more first resources or one or more second resources vary in both the time and frequency domains.

[0118] In some aspects, the preamble of the wake-up signal identifies the UE group in the first UE group and the second UE group associated with the wake-up signal. Additionally or alternatively, the preamble of the wake-up signal identifies the cell associated with the UE.

[0119] In some aspects, configuration information identifying the first UE group and the second UE group is provided in the system information. In some aspects, the transmission power of the wake-up signal is configured at least in part based on a power offset relative to a synchronization signal transmitted by the base station. In some aspects, the UE group in the first UE group and the second UE group is assigned to the UE at least in part based on the UE's paging narrowband.

[0120] In some aspects, the wake-up signal is also identified at least in part based on the parameters of the preamble of the wake-up signal, wherein the UE is configured to detect the parameters of the preamble.

[0121] In some aspects, resources are selected based at least in part on the maximum number of repetitions of a communication (e.g., the communication described below in conjunction with block 720). In some aspects, resources are selected based at least in part on the actual number of repetitions of a communication. In some aspects, one or more first resources and one or more second resources are multiplexed with resources associated with at least one other UE group, including the first UE group and the second UE group.

[0122] At point 730, the base station may transmit communication to the UE based at least in part on a wake-up signal. For example, the communication may include a downlink channel. The base station may transmit communication to the UE after sending a wake-up signal, causing the UE to scan for and receive the communication (e.g., to wake up from idle mode and / or similar). In some aspects, communication may be transmitted after a specific delay, at least in part, based on the UE's capability. For example, this capability may be related to at least one of the UE's receiver type or the UE's synchronization processing time. Additionally or alternatively, communication may be transmitted before the maximum delay has elapsed.

[0123] Although Figure 7 An exemplary block of a wireless communication method is shown, but in some aspects, the method may include... Figure 7 The blocks shown are additional blocks, fewer blocks, different blocks, or blocks arranged differently compared to those shown. Additionally or alternatively, Figure 7 The two or more blocks shown can be executed in parallel.

[0124] Figure 8 This is a flowchart of wireless communication method 800. This method can be implemented by a UE (e.g., Figure 1 (UE 120, device 1302 / 1302' and / or similar) to perform.

[0125] At point 810, the UE can scan specific resources of a resource mode to identify wake-up signals associated with a UE group that includes the UE. For example, a resource mode can be associated with a UE group. The UE can scan specific resources to identify wake-up signals for that UE group. Wake-up signals can cause UEs in the UE group to perform wake-up and / or receive subsequent communications. In some aspects, the UE receives configuration information in system information indicating that the UE is associated with a UE group.

[0126] In some aspects, UE groups are assigned to UEs based at least in part on parameters of the UE's paging narrowband and at least in part on the number of UE groups. For example, the number of UE groups can be any integer. In some aspects, the length of a particular resource is based at least in part on the maximum number of repetitions associated with the communication to be received by the UE. In some aspects, a particular resource is one of a plurality of resources scanned by the UE to obtain a wake-up signal, wherein the plurality of resources are determined at least in part on the maximum number of repetitions associated with the communication and the actual number of repetitions. In some aspects, the UE is configured to determine UE groups at least in part based on the total number of UE groups. In some aspects, UE groups are configured or defined before a wake-up message is detected.

[0127] At point 820, the UE may identify the wake-up signal at least in part based on at least one of the cell identifier or the UE group identifier associated with the UE. For example, the wake-up signal preamble may identify at least a portion of the cell identifier and / or at least a portion of the UE group identifier. The UE may identify the wake-up signal at least in part based on the preamble.

[0128] In some aspects, a portion of the UE group identifier is identified by the preamble of the wake-up signal. In some aspects, the wake-up signal is also identified at least in part based on parameters of the preamble, wherein the UE is configured to detect the parameters of the preamble.

[0129] At 830, the UE may optionally determine the reference value based at least in part on the transmission power of the wake-up signal. For example, the transmission power may be based at least in part on the power offset relative to the synchronization signal received by the UE. In this way, the UE can save network resources that would otherwise be used to determine the reference value by transmitting and / or using a separate synchronization signal.

[0130] At 840, the UE may optionally perform wake-up to receive communication based at least in part on the recognition of a wake-up signal. For example, the UE may wake up at least in part on the recognition of a wake-up signal to receive paging at a specific time. In some aspects, the UE may remain awake for a specific time length after receiving a wake-up signal, as described in more detail elsewhere herein.

[0131] At 850, the UE may optionally receive communication. For example, the UE may receive communication after performing a wake-up. In some aspects, the ability to receive communication after a specific delay is based at least in part on the UE's capabilities. In some aspects, the UE may send information identifying its capabilities to the base station that sent the communication. In some aspects, this capability is related to at least one of the UE's receiver type or the UE's synchronization processing time. In some aspects, communication is received before the maximum delay has passed. The UE may scan for communication between the wake-up signal and the time associated with the maximum delay.

[0132] Although Figure 8 An exemplary block of a wireless communication method is shown, but in some aspects, the method may include... Figure 8 The examples shown are those with additional blocks, fewer blocks, different blocks, or blocks arranged differently compared to others. Additionally or alternatively, Figure 8 The two or more blocks shown can be executed in parallel.

[0133] Figure 9 This is a flowchart of a wireless communication method 900. This method can be implemented by a base station (e.g., Figure 1 (The BS 110, device 1102 / 1102' and / or similar) are used to perform this.

[0134] At 910, the base station may use a resource selected from the following to transmit a wake-up signal: one or more first resources in a first resource mode corresponding to the transmission of a wake-up signal using a first antenna port, or one or more second resources in a second resource mode corresponding to the transmission of a wake-up signal using a second antenna port.

[0135] At point 920, the base station can send communications to the user equipment (UE) at least in part based on the wake-up signal.

[0136] In some aspects, method 900 may include other aspects, such as those described below and / or in combination with one or more other methods described herein.

[0137] In some aspects, one or more first resources are in a first set of subframes, and one or more second resources are in a second set of subframes. In some aspects, the resources in one or more first resources or one or more second resources vary in at least one of the time domain or frequency domain. In some aspects, one or more first resources and one or more second resources are included in an anchored carrier. In some aspects, one or more first resources and one or more second resources are included in a non-anchored carrier. In some aspects, one or more first resources and one or more second resources are included in the same narrowband as the communication.

[0138] In some aspects, one or more first resources and one or more second resources include resources that do not carry physical broadcast channels, primary synchronization signals, or secondary synchronization signals. In some aspects, one or more first resources and one or more second resources include physical resource blocks in the frequency domain. In some aspects, the frequency offset of one or more first resources and one or more second resources is indicated to the UE. In some aspects, the preamble of the wake-up signal identifies the UE group. In some aspects, the preamble of the wake-up signal identifies the cell.

[0139] In some aspects, the wake-up signal is used to perform synchronization. In some aspects, the transmission power of the wake-up signal is configured at least in part based on a power offset relative to a synchronization signal or a reference signal. In some aspects, communication is transmitted after a delay or gap between the wake-up signal and the communication, wherein the delay or gap is configured at least in part based on UE capabilities. In some aspects, UE capabilities are related to at least one of the UE's receiver type or the UE's processing time, wherein the processing time is predefined or reported by the UE.

[0140] In some aspects, the amount of resources for the maximum duration of the wake-up signal is selected at least in part based on the maximum number of repetitions of the communication. In some aspects, the amount of resources for the actual duration of the wake-up signal is selected at least in part based on the actual number of repetitions of the communication. In some aspects, the resources are for the starting subframe of the wake-up signal transmission, and wherein the starting subframe is determined at least in part based on: the starting subframe of the communication, the maximum duration of the wake-up signal, and the gap between the communication and the end of the maximum duration of the wake-up signal.

[0141] Although Figure 9 An exemplary block of a wireless communication method is shown, but in some aspects, the method may include... Figure 9 The blocks shown are additional blocks, fewer blocks, different blocks, or blocks arranged differently compared to those shown. Additionally or alternatively, Figure 9 The two or more blocks shown can be executed in parallel.

[0142] Figure 10 This is a flowchart of a wireless communication method 1000. This method can be implemented by a UE (e.g., Figure 1 (UE 120, device 1302 / 1302' and / or similar) to perform.

[0143] At 1010, the UE can scan specific resources of the resource mode to identify wake-up signals associated with the UE.

[0144] At 1020, the UE can receive a wake-up signal from the base station on a specific resource in the resource mode, wherein the resource mode corresponds to the antenna port through which the wake-up signal is sent.

[0145] At 1030, the UE can identify a wake-up signal associated with the UE based at least in part on a cell identifier associated with the UE, wherein at least a portion of the cell identifier is indicated by the wake-up signal.

[0146] In some aspects, method 1000 may include other aspects, such as those described below and / or in combination with one or more other methods described herein.

[0147] In some aspects, the resource pattern includes a set of subframes that use the same antenna port for the transmission of the wake-up signal. In some aspects, a particular resource is a resource that does not carry a physical broadcast channel, a primary synchronization signal, or a secondary synchronization signal. In some aspects, the wake-up signal is also identified at least in part based on a UE group identifier, wherein at least a portion of the UE group identifier is indicated by the wake-up signal. In some aspects, the wake-up signal is used to perform synchronization.

[0148] In some aspects, the UE can be configured to: wake from a sleep state to receive communication based at least in part on the recognition of a wake-up signal; and receive the communication. In some aspects, the communication is received after a delay or gap between the wake-up signal and the communication, wherein the delay or gap is configured at least in part based on the UE's capabilities. In some aspects, the UE can be configured to: send information identifying the UE's capabilities to the base station transmitting the communication. In some aspects, the UE's capabilities are related to at least one of the UE's receiver type or the UE's processing time, wherein the processing time is predefined or reported by the UE.

[0149] In some aspects, the maximum duration of a specific resource is based at least in part on the maximum number of repetitions associated with communication scheduled for the UE. In some aspects, the actual duration of a specific resource is based at least in part on the actual number of repetitions associated with communication scheduled for the UE. In some aspects, the specific resource is the starting subframe for receiving a wake-up signal, and wherein the starting subframe is determined at least in part based on: the starting subframe of communication, the maximum duration of the wake-up signal, and the interval between the communication and the end of the maximum duration of the wake-up signal. In some aspects, the specific resource is one of a plurality of resources scanned by the UE for a wake-up signal, wherein the plurality of resources is determined at least in part based on at least one of the maximum number of repetitions or the actual number of repetitions associated with communication to be received by the UE.

[0150] Although Figure 10An example block of a wireless communication method is shown, but in some aspects, the method may include... Figure 10 The blocks shown are additional blocks, fewer blocks, different blocks, or blocks arranged differently compared to those shown. Additionally or alternatively, Figure 10 The two or more blocks shown can be executed in parallel.

[0151] Figure 11 This is a conceptual data flow diagram 1100 illustrating the data flow between different modules / units / components in an exemplary device 1102. Device 1102 may be a base station, such as an eNB, gNB, and / or the like. In some aspects, device 1102 includes a receiving module 1104 and a transmitting module 1106.

[0152] The receiving module 1104 can receive signal 1108 from UE 1150 (e.g., UE 120 and / or similar). In some aspects, signal 1108 may identify the capabilities of UE 1150. The receiving module may provide data 1110 to the transmitting module 1106. Data 1110 may identify the capabilities.

[0153] The transmitting module 1106 can transmit wake-up signals and / or communications at least in part based on wake-up signals. For example, the transmitting module 1106 can generate signal 1112, and the device 1102 can transmit signal 1112 to UE 1150. Signal 1112 may include wake-up signals, communications, and / or other information.

[0154] The apparatus may include the device that performs the above-described actions. Figure 7 , Figure 9 And / or similar additional modules to each block in the algorithm's block in the flowchart. Therefore, the above Figure 7 , Figure 9 Each block in a flowchart, and / or similar, can be executed by a module, and the apparatus may include one or more of those modules. A module may be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored within a computer-readable medium for implementation by a processor, or some combination thereof.

[0155] supply Figure 11 The number and arrangement of modules shown are for illustrative purposes only. In practice, with... Figure 11 Compared to the modules shown, there may be additional modules, fewer modules, different modules, or modules arranged in a different manner. Furthermore, Figure 11 The two or more modules shown can be implemented within a single module, or Figure 11 The single module shown can be implemented as multiple, distributed modules. Additionally or alternatively, Figure 11 The set of modules shown (e.g., one or more modules) can perform actions described by Figure 11 The other set of modules shown performs one or more functions.

[0156] Figure 12 Figure 1200 illustrates an example of a hardware implementation scheme for a device 1102' employing processing system 1202. Device 1102' may be a base station, such as an eNB, gNB, and / or similar.

[0157] Processing system 1202 can be implemented using a bus architecture typically represented by bus 1204. Bus 1204 may include any number of interconnect buses and bridges, depending on the specific application of processing system 1202 and overall design constraints. Bus 1204 links various circuits together, including one or more processors and / or hardware modules represented by processor 1206, module 1104, and computer-readable medium / memory 1208. Bus 1204 may also link various other circuits, such as timing sources, peripheral devices, voltage regulators, and power management circuits, which are well known in the art and will not be described further.

[0158] Processing system 1202 may be coupled to transceiver 1210. Transceiver 1210 is coupled to one or more antennas 1212. Transceiver 1210 provides units for communicating with various other devices via a transmission medium. Transceiver 1210 receives signals from one or more antennas 1212, extracts information from the received signals, and provides the extracted information to processing system 1202 (specifically, receiving module 1104). Furthermore, transceiver 1210 receives information from processing system 1202 (specifically, transmitting module 1106) and generates signals applicable to one or more antennas 1212 based at least in part on the received information. Processing system 1202 includes processor 1206 coupled to computer-readable medium / memory 1208. Processor 1206 is responsible for general processing, including executing software stored on computer-readable medium / memory 1208. When the software is executed by processor 1206, it causes processing system 1202 to perform the various functions described above for any particular device. The computer-readable medium / memory 1208 can also be used to store data manipulated by the processor 1206 when the software is executed. The processing system further includes at least one module of modules 1104 and 1106. A module can be a software module residing in / stored in the computer-readable medium / memory 1208 and running in the processor 1206, one or more hardware modules coupled to the processor 1206, or combinations thereof. The processing system 1202 can be a component of BS 110 and can include at least one of memory 242 and / or TXMIMO processor 230, receiving processor 238, and / or controller / processor 240.

[0159] In some aspects, the apparatus 1102 / 1102' for wireless communication includes: a unit for transmitting a wake-up signal, a unit for transmitting communication at least partially based on the wake-up signal, and / or similar. Additionally or alternatively, the apparatus 1102 / 1102' for wireless communication may include: a unit for transmitting the wake-up signal using resources selected from one of the following: one or more first resources in a first resource mode corresponding to the transmission of the wake-up signal using a first antenna port, or one or more second resources in a second resource mode corresponding to the transmission of the wake-up signal using a second antenna port; a unit for transmitting communication to a user equipment (UE) at least partially based on the wake-up signal; and / or similar. The aforementioned units may be one or more of the modules of the apparatus 1102 configured to perform the functions described above and / or one or more of the processing system 1202 of the apparatus 1102'. As described above, the processing system 1202 may include a TX MIMO processor 230, a receiver processor 238, and / or a controller / processor 240. Therefore, in one configuration, the aforementioned unit may be a TX MIMO processor 230, a receiver processor 238, and / or a controller / processor 240 configured to perform the functions described above.

[0160] supply Figure 12 As an example. Other examples are possible and may differ from the combination. Figure 12 The example described.

[0161] Figure 13 This is a conceptual data flow diagram 1300 illustrating the data flow between different modules / units / components in an exemplary device 1302. Device 1302 may be a UE. In some aspects, device 1302 includes a receiving module 1304, a scanning module 1306, an identification module 1308, a determining module 1310, and / or a transmitting module 1312.

[0162] The receiving module 1304 may receive signal 1314 from BS 1350. In some aspects, signal 1314 may include a wake-up signal and / or communication associated with the wake-up signal. The receiving module 1304 may process signal 1314 and may provide data 1316 to the scanning module 1306 and / or the determining module 1310 based at least in part on signal 1314.

[0163] The scanning module 1306 can scan specific resources of a resource mode to identify wake-up signals associated with a UE group, wherein the resource mode is associated with a UE group; and can provide data 1318 to the identification module 1308 at least in part based on this scan. The identification module 1308 can identify the wake-up signal at least in part based on at least one of a cell identifier or a UE group identifier, wherein at least a portion of the cell identifier or at least a portion of the UE group identifier is identified by the wake-up signal.

[0164] The determining module 1310 can determine a reference value based at least in part on the transmission power of the wake-up signal, wherein the transmission power is at least in part based on the power offset relative to the synchronization signal received by the device 1302.

[0165] The transmitting module 1312 can transmit signal 1320. In some respects, signal 1320 can identify the capabilities of device 1302.

[0166] The apparatus may include the device that performs the above-described actions. Figure 8 , Figure 10 And / or other modules in each block of the algorithm in the flowchart. Therefore, the above Figure 8 , Figure 10 Each block in a flowchart, and / or similar, can be executed by a module, and the apparatus may include one or more of those modules. A module may be one or more hardware components specifically configured to execute the process / algorithm, implemented by a processor configured to execute the process / algorithm, stored within a computer-readable medium for implementation by a processor, or some combination thereof.

[0167] supply Figure 13 The number and arrangement of modules shown are for illustrative purposes only. In practice, with... Figure 13 Compared to the modules shown, there may be additional modules, fewer modules, different modules, or modules arranged in a different manner. Furthermore, Figure 13 The two or more modules shown can be implemented within a single module, or Figure 13 The single module shown can be implemented as multiple, distributed modules. Additionally or alternatively, Figure 13 The set of modules shown (e.g., one or more modules) can perform actions described by Figure 13 The other set of modules shown performs one or more functions.

[0168] Figure 14 Figure 1400 illustrates an example of a hardware implementation scheme for a device 1302' employing a processing system 1402. Device 1302' may be a UE.

[0169] Processing system 1402 can be implemented using a bus architecture typically represented by bus 1404. Bus 1404 may include any number of interconnect buses and bridges, depending on the specific application of processing system 1402 and overall design constraints. Bus 1404 links various circuits together, including one or more processors and / or hardware modules represented by processor 1406, module 1304, module 1306, module 1308, module 1310, and module 1312, as well as computer-readable medium / memory 1408. Bus 1404 may also link various other circuits, such as timing sources, peripherals, voltage regulators, and power management circuits, which are well known in the art and will not be described further.

[0170] Processing system 1402 may be coupled to transceiver 1410. Transceiver 1410 is coupled to one or more antennas 1412. Transceiver 1410 provides units for communicating with various other devices via a transmission medium. Transceiver 1410 receives signals from one or more antennas 1412, extracts information from the received signals, and provides the extracted information to processing system 1402 (specifically, receiving module 1304). Furthermore, transceiver 1410 receives information from processing system 1402 (specifically, transmitting module 1312) and generates signals applicable to one or more antennas 1412 based at least in part on the received information. Processing system 1402 includes processor 1406 coupled to computer-readable medium / memory 1408. Processor 1406 is responsible for general processing, including executing software stored on computer-readable medium / memory 1408. When the software is executed by processor 1406, it causes processing system 1402 to perform the various functions described above for any particular device. The computer-readable medium / memory 1408 can also be used to store data manipulated by the processor 1406 during software execution. The processing system further includes at least one module selected from modules 1304, 1306, 1308, 1310, and 1312. A module can be a software module existing in / stored in the computer-readable medium / memory 1408 and running in the processor 1406, one or more hardware modules coupled to the processor 1406, or a combination thereof. The processing system 1402 can be a component of the UE 120 and can include at least one of memory 282 and / or TX MIMO processor 266, RX processor 258, and / or controller / processor 280.

[0171] In some aspects, the apparatus 1302 / 1302' for wireless communication includes: a unit for scanning specific resources of a resource mode to identify a wake-up signal associated with a UE group including the apparatus 1302 / 1302', wherein the resource mode is associated with the UE group; a unit for identifying the wake-up signal based at least in part on at least one of a cell identifier or a UE group identifier associated with the apparatus 1302 / 1302', wherein at least a portion of the cell identifier or at least a portion of the UE group identifier is identified by the wake-up signal; a unit for determining a reference value based at least in part on the transmission power of the wake-up signal, wherein the transmission power is based at least in part on a power offset relative to a synchronization signal received by the apparatus 1302 / 1302'; a unit for performing a wake-up to receive communication based at least in part on the identified wake-up signal; a unit for receiving communication; and / or a unit for scanning communication between the wake-up signal and a time associated with a maximum delay. Additionally or alternatively, the apparatus 1302 / 1302' for wireless communication may include: a unit for scanning specific resources of a resource mode to identify a wake-up signal associated with the UE; a unit for receiving the wake-up signal from a base station on a specific resource of the resource mode, wherein the resource mode corresponds to an antenna port through which the wake-up signal is transmitted; a unit for identifying the wake-up signal associated with the UE based at least in part on a cell identifier associated with the UE, wherein at least a portion of the cell identifier is indicated by the wake-up signal; and / or similar. The aforementioned units may be one or more of the modules of apparatus 1302 and / or processing system 1402 of apparatus 1302' configured to perform the functions described above. As described above, processing system 1402 may include TX MIMO processor 266, RX processor 258, and / or controller / processor 280. Therefore, in one configuration, the aforementioned units may be TX MIMO processor 266, RX processor 258, and / or controller / processor 280 configured to perform the functions described above.

[0172] supply Figure 14 As an example. Other examples are possible and may differ from the combination. Figure 14 The example described.

[0173] It is understood that the specific order or hierarchy of the blocks in the disclosed process / flowchart is illustrative of the example method. It is understood that the specific order or hierarchy of the blocks in the process / flowchart can be rearranged based on design preferences. Furthermore, some blocks can be combined or omitted. The appended method claims give the elements of the individual blocks in a sample order, and are not intended to limit one to the given specific order or hierarchy.

[0174] The foregoing description is provided to enable any person skilled in the art to practice the various aspects described herein. Various modifications to these aspects will be apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but are to be consistent with the full scope of the claims, wherein, unless expressly stated, an element referred to in the singular is not intended to mean "one and only one," but rather "one or more." The term "exemplary" as used herein means "serving as an example, instance, or illustration." Any aspect described herein as "exemplary" is not necessarily to be construed as preferred or superior to other aspects. Unless otherwise specifically stated, the term "some" refers to one or more. Combinations such as "at least one of A, B, or C," "at least one of A, B, and C," and "A, B, C, or any combination thereof" include any combination of A, B, and / or C, and may include multiple A, multiple B, or multiple C. Specifically, combinations such as "at least one of A, B, or C," "at least one of A, B, and C," and "A, B, C, or any combination thereof" can be A only, A only, C only, A and B, A and C, B and C, or A and B and C, wherein any such combination may include one or more members or some members of A, B, or C. All structures and functions known or to be known by one of ordinary skill in the art that are equivalent to the elements described throughout this disclosure are expressly incorporated herein by reference and are intended to be included in the claims. Furthermore, regardless of whether such disclosure is expressly stated in the claims, the disclosure herein is not intended to be offered to the public. Unless the element is expressly stated using the phrase "unit for...", a claim element should not be construed as a functional module.

Claims

1. A method for wireless communication performed by a user equipment (UE), comprising: A starting subframe associated with the wake-up signal transmission is determined, wherein the starting subframe is determined at least in part based on the following: The starting subframe of the paging timing, The maximum duration of the wake-up signal transmission, and The gap between the paging timing and the end of the maximum duration of the wake-up signal transmission; Scan for wake-up signals across multiple resources, including the starting subframe; The wake-up signal is received on the starting subframe; and The wake-up signal is identified as being associated with the UE based at least in part on a cell identifier associated with the UE, wherein the wake-up signal is based at least in part on the cell identifier.

2. The method according to claim 1, wherein, The multiple resources include a set of subframes in which the same antenna port is used for the transmission of the wake-up signal.

3. The method according to claim 1, wherein, The resources do not include subframes carrying physical broadcast channels, primary synchronization signals, or secondary synchronization signals.

4. The method according to claim 1, wherein, The wake-up signal is further based, at least in part, on the UE group identifier.

5. The method according to claim 1, further comprising: Wake up from a low-power state to receive communication during the paging event, at least in part, based on recognizing the wake-up signal; as well as Receive the communication.

6. The method according to claim 5, wherein, The communication is received after the gap between the wake-up signal and the paging timing, wherein the gap is configured at least in part based on UE capabilities.

7. The method according to claim 6, further comprising: Send information identifying the capabilities of the UE to the base station.

8. The method according to claim 7, wherein, The UE capability is related to the UE's processing time, wherein the processing time is reported by the UE.

9. The method according to claim 1, wherein, The maximum duration of the wake-up signal transmission is at least in part based on the maximum number of repetitions associated with the wake-up signal transmission.

10. The method according to claim 9, wherein, The actual duration of the wake-up signal is at least partially based on the maximum duration of the wake-up signal transmission.

11. A method for wireless communication performed by a base station, comprising: A wake-up signal is sent on multiple resources, the multiple resources including a start subframe for transmitting the wake-up signal; Communication is sent to the user equipment (UE) during the paging period after the transmission of the wake-up signal; The starting subframe is determined at least in part based on the following: The starting subframe of the paging timing The maximum duration of the wake-up signal, and The gap between the paging timing and the end of the maximum duration of the wake-up signal.

12. The method according to claim 11, wherein, The multiple resources correspond to a set of subframes associated with the same antenna port.

13. The method according to claim 11, wherein, The plurality of resources correspond to a first set of subframes associated with the first antenna port and a second set of subframes associated with the second antenna port.

14. The method according to claim 11, wherein, The wake-up signal and the communication are transmitted on the same narrowband.

15. The method according to claim 11, wherein, The resources do not include subframes carrying physical broadcast channels, primary synchronization signals, or secondary synchronization signals.

16. The method according to claim 11, wherein, The preamble of the wake-up signal is at least partially based on the UE group.

17. The method according to claim 11, wherein, The preamble of the wake-up signal is at least partially based on the cell identifier.

18. The method according to claim 11, wherein, The communication is sent after a gap between the wake-up signal and the communication, wherein the gap is configured at least in part based on UE capabilities.

19. The method according to claim 18, wherein, The UE capability is related to the UE's processing time, wherein the processing time is reported by the UE.

20. The method according to claim 11, wherein, The maximum duration of the wake-up signal corresponds to the maximum number of repetitions.

21. The method according to claim 20, wherein, The actual duration of the wake-up signal is at least partially based on the maximum duration.

22. A user equipment (UE) for wireless communication, comprising: Memory; as well as One or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: A starting subframe associated with the wake-up signal transmission is determined, wherein the starting subframe is determined at least in part based on the following: The starting subframe of the paging timing, The maximum duration of the wake-up signal transmission, and The gap between the paging timing and the end of the maximum duration of the wake-up signal transmission; Scan for wake-up signals across multiple resources, including the starting subframe; The wake-up signal is received on the starting subframe; and The wake-up signal is identified as being associated with the UE based at least in part on a cell identifier associated with the UE, wherein the wake-up signal is based at least in part on the cell identifier.

23. The UE according to claim 22, wherein, The multiple resources include a set of subframes in which the same antenna port is used for the transmission of the wake-up signal.

24. The UE according to claim 23, wherein, The resources do not include subframes carrying physical broadcast channels, primary synchronization signals, or secondary synchronization signals.

25. The UE according to claim 24, wherein, The wake-up signal is further based, at least in part, on the UE group identifier.

26. The UE according to claim 25, wherein, The one or more processors are configured to: Wake up from a low-power state to receive communication during the paging period, at least in part based on recognizing the wake-up signal; and Receive the communication.

27. The UE according to claim 26, wherein, The one or more processors are configured to receive the communication after the gap between the wake-up signal and the paging timing, wherein the gap is configured at least in part based on UE capabilities.

28. The UE according to claim 27, wherein, The one or more processors are configured to send information identifying the capabilities of the UE to the base station.

29. The UE according to claim 28, wherein, The UE capability is related to the UE's processing time, wherein the processing time is reported by the UE.

30. A base station for wireless communication, comprising: Memory; as well as One or more processors operatively coupled to the memory, the memory and the one or more processors being configured to: A wake-up signal is sent on multiple resources, the multiple resources including a start subframe for transmitting the wake-up signal; Communication is sent to the user equipment (UE) during the paging period after the transmission of the wake-up signal; The starting subframe is determined at least in part based on the following: The starting subframe of the paging timing The maximum duration of the wake-up signal, and The gap between the paging timing and the end of the maximum duration of the wake-up signal.

31. The base station according to claim 30, wherein, The multiple resources correspond to a set of subframes associated with the same antenna port.

32. The base station according to claim 30, wherein, The plurality of resources correspond to a first set of subframes associated with the first antenna port and a second set of subframes associated with the second antenna port.

33. The base station according to claim 30, wherein, The wake-up signal and the communication are transmitted on the same narrowband.

34. The base station according to claim 30, wherein, The resources do not include subframes carrying physical broadcast channels, primary synchronization signals, or secondary synchronization signals.

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