Silence uplink and / or downlink communications between user equipment and base stations

Abstract

A configuration for suspending communication between a UE and a base station based on an instruction from a base station. A device receives a silence instruction for at least one of uplink communication or downlink communication from the base station. The device determines a first duration associated with at least one of the uplink communication or downlink communication based on the silence instruction. The device suppresses all of at least one of the uplink communication or downlink communication with the base station for the first duration in response to receiving the silence instruction.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of U.S. Provisional Application No. 62 / 981,920, filed on February 26, 2020, entitled “System and Method for Silencing Communication,” and U.S. Patent Application No. 17 / 185,818, filed on February 25, 2021, entitled “SYSTEM AND METHOD FOR SILENCING COMMUNICATION,” the entire contents of which are expressly incorporated herein by reference. Technical Field

[0003] The present disclosure relates generally to communication systems, and more particularly, to a user equipment (UE) configured to suppress communications with a base station based on instructions. Background Art

[0004] Wireless communication systems are widely deployed to provide a variety of telecommunication services, such as telephony, video, data, messaging, and broadcast. Typical wireless communication systems may employ multiple access technologies capable of supporting communication with multiple users by sharing available system resources. Examples of such multiple access systems 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, and time division synchronous code division multiple access (TD-SCDMA) systems.

[0005] These multiple access technologies have been used in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, or even global level. An example telecommunication standard is 5G New Radio (NR). 5G NR is part of the continued mobile broadband evolution promulgated by the Third Generation Partnership Project (3GPP) and is designed to meet new requirements associated with latency, reliability, security, scalability (for example, in the case of the Internet of Things (IoT)), and other requirements. 5G NR includes services associated with enhanced mobile broadband (eMBB), massive machine type communications (mMTC), and ultra-reliable low latency communications (URLLC). Certain aspects of 5G NR may be based on the 4G Long Term Evolution (LTE) standard. 5G NR technology requires further improvements. These improvements may also be applicable to other multiple access technologies and telecommunication standards that employ these technologies. Summary of the invention

[0006] A simplified summary of one or more aspects is presented below to provide a basic understanding of such aspects. This summary is not an extensive overview of all contemplated aspects, and is neither intended to identify key or important elements of all aspects, nor to delineate the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to a more detailed description presented later.

[0007] In some scenarios, the base station may determine that the conditions on the channel on which the base station communicates with the user equipment (UE) have deteriorated to the extent that the communication is significantly affected. For example, when the base station receives a specific number of negative acknowledgement (NACK) feedback messages from the UE within a specific time frame, the base station may determine that the channel conditions have deteriorated.

[0008] When the channel conditions between the base station and the UE are relatively poor (e.g., such that each transmission requires multiple retransmissions), continued attempts to communicate may be detrimental to both the base station and the UE. For example, continued attempts to communicate may consume resources, such as power and / or processing resources. In addition, continued attempts to communicate may introduce signaling overhead, which may negatively impact surrounding devices (such as other UEs and / or base stations) by causing interference and / or reducing the amount of available resources.

[0009] In view of the above, there is a need for a solution to a scenario in which a base station and a UE have difficulty communicating due to relatively poor channel conditions. The present disclosure describes various techniques and solutions for a base station and a UE in situations where communication is adversely affected by poor channel conditions. For example, in certain aspects, such as if a base station determines that the channel conditions for a certain UE are poor (e.g., after receiving a certain number of NACK feedback messages from the UE in succession), the base station may determine to suppress sending certain periodic downlink data to the UE and / or suppress receiving certain periodic uplink data from the UE.

[0010] In aspects of the present disclosure, methods, computer-readable media, and apparatus are provided. The apparatus may be a device at a UE. The apparatus may be a processor and / or a modem at the UE or the UE itself. The apparatus may receive a silence instruction for at least one of uplink communication or downlink communication from a base station. The apparatus may determine a first duration associated with at least one of the uplink communication or downlink communication based on the silence instruction. The apparatus may suppress all of at least one of the uplink communication or downlink communication with the base station for the first duration in response to receiving the silence instruction.

[0011] In aspects of the present disclosure, methods, computer-readable media, and apparatus are provided. The apparatus may be a device at a base station. The apparatus may be a processor and / or modem of the base station or the base station itself. The apparatus may determine a first duration for suspending at least one of uplink communication or downlink communication with a UE. The apparatus may send a silence instruction for at least one of uplink communication or downlink communication indicating the first duration to the UE. The apparatus may suppress all of at least one of uplink communication or downlink communication with the UE for the first duration based on sending the silence instruction.

[0012] To accomplish the foregoing and related ends, one or more aspects comprise the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of only a few of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a diagram illustrating an example of a wireless communication system and an access network.

[0014] Figure 2A is a diagram illustrating an example of a first frame according to various aspects of the present disclosure.

[0015] Figure 2B is a diagram illustrating an example of DL channels within a subframe according to various aspects of the present disclosure.

[0016] Figure 2C is a diagram illustrating an example of a second frame according to various aspects of the present disclosure.

[0017] Figure 2D is a diagram illustrating an example of UL channels within a subframe according to various aspects of the present disclosure.

[0018] Figure 3 is a diagram illustrating an example of a base station and a user equipment (UE) in an access network.

[0019] Figure 4 is a call flow diagram illustrating example operations of a base station and a UE.

[0020] Figure 5 is a flow chart of a method of wireless communication.

[0021] Figure 6 is a diagram illustrating an example of a hardware implementation for an example apparatus.

[0022] Figure 7 is a flow chart of a method of wireless communication.

[0023] Figure 8 is a diagram illustrating an example of a hardware implementation for an example apparatus. DETAILED DESCRIPTION

[0024] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configuration in which the concepts described herein may be practiced. The detailed description includes specific details for the purpose of providing a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some cases, a plurality of well-known structures and components are shown in block diagram form in order to avoid obscuring such concepts.

[0025] Several aspects of telecommunication systems will now be presented with reference to various apparatus and methods. These apparatus and methods will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0026] By way of example, an element, or any part of an element, or any combination of elements can be implemented as a "processing system" including one or more processors. Examples of processors include microprocessors, microcontrollers, graphics processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gated logic, discrete hardware circuits, and other suitable hardware configured to perform various functionalities described throughout the present disclosure. One or more processors in a processing system can execute software. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, processes, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description languages, or other.

[0027] Accordingly, in one or more example embodiments, the described functions may be implemented in hardware, software, or any combination thereof. If implemented in software, the functions may be stored on a computer-readable medium, or encoded as one or more instructions or codes on a computer-readable medium. Computer-readable media include computer storage media. Storage media may be any available medium accessible by a computer. By way of example and not limitation, such computer-readable media may include random access memory (RAM), read-only memory (ROM), electrically erasable programmable ROM (EEPROM), optical disk storage, magnetic disk storage, other magnetic storage devices, a combination of computer-readable media of the above types, or any other medium that may be used to store computer executable code in the form of instructions or data structures accessible by a computer.

[0028] Figure 1 1 is a diagram illustrating an example of a wireless communication system and access network 100. The wireless communication system (also referred to as a wireless wide area network (WWAN)) includes a base station 102, a UE 104, an evolved packet core (EPC) 160, and another core network 190 (e.g., a 5G core (5GC)). The base station 102 may include a macro cell (a high-power cellular base station) and / or a small cell (a low-power cellular base station). A macro cell includes a base station. A small cell includes a femto cell, a pico cell, and a micro cell.

[0029] A base station 102 configured for 4G LTE (collectively referred to as Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a first backhaul link 132 (e.g., an S1 interface). A base station 102 configured for 5G NR (collectively referred to as Next Generation RAN (NG-RAN)) may interface with the core network 190 via a second backhaul link 184. The base station 102 may perform one or more of the following functions, among other functions: delivery of user data, radio channel encryption and decryption, integrity protection, header compression, mobility control functions (e.g., handover, dual connectivity), inter-cell interference coordination, connection establishment and release, load balancing, non-access stratum (NAS) message distribution, NAS node selection, synchronization, radio access network (RAN) sharing, multimedia broadcast multicast service (MBMS), subscriber and equipment tracking, RAN information management (RIM), paging, positioning, and delivery of warning messages. The base stations 102 may communicate with each other directly or indirectly (eg, via the EPC 160 or the core network 190) via a third backhaul link 134 (eg, an X2 interface). The first backhaul link 132, the second backhaul link 184, and the third backhaul link 134 may be wired or wireless.

[0030] Base station 102 can communicate wirelessly with UE 104. Each of base stations 102 can provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' can have a coverage area 110' that overlaps with the coverage area 110 of one or more macro base stations 102. A network including both small cells and macro cells can be referred to as a heterogeneous network. A heterogeneous network can also include a home evolved Node B (eNB) (HeNB), which can provide services to a restricted group called a closed subscriber group (CSG). The communication link 120 between base station 102 and UE 104 can include an uplink (UL) (also referred to as a reverse link) transmission from UE 104 to base station 102 and / or a downlink (DL) (also referred to as a forward link) transmission from base station 102 to UE 104. The communication link 120 can use multiple input and multiple output (MIMO) antenna technology, including spatial multiplexing, beamforming and / or transmit diversity. The communication link can be through one or more carriers. For each carrier allocated in a carrier aggregation of up to a total of Yx MHz (x component carriers) for transmission in each direction, the base station 102 / UE 104 may use spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) bandwidth. The carriers may be adjacent to each other or not. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated for DL ​​than for UL). The component carrier may include a primary component carrier and one or more secondary component carriers. The primary component carrier may be referred to as a primary cell (PCell) and the secondary component carrier may be referred to as a secondary cell (SCell).

[0031] Some UEs 104 may communicate with each other using a device-to-device (D2D) communication link 158. The D2D communication link 158 may use DL / UL WWAN spectrum. The D2D communication link 158 may use one or more sidelink channels, such as a physical sidelink broadcast channel (PSBCH), a physical sidelink discovery channel (PSDCH), a physical sidelink shared channel (PSSCH), and a physical sidelink control channel (PSCCH). The D2D communication may be through various wireless D2D communication systems, such as, for example, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the Institute of Electrical and Electronics Engineers (IEEE) 802.11 standard, LTE, or NR.

[0032] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154, for example, in a 5 GHz unlicensed frequency spectrum. When communicating in an unlicensed frequency spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether a channel is available prior to communication.

[0033] The small cell 102' may operate in a licensed and / or unlicensed frequency spectrum. When operating in an unlicensed frequency spectrum, the small cell 102' may employ NR and use the same unlicensed frequency spectrum (e.g., 5 GHz, etc.) as used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed frequency spectrum may facilitate coverage of the access network and / or increase the capacity of the access network.

[0034] The electromagnetic spectrum is often subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating bands have been identified with the frequency range names FR1 (410MHz–7.125GHz) and FR2 (24.25GHz–52.6GHz). Frequencies between FR1 and FR2 are often referred to as mid-band frequencies. Although portions of FR1 are greater than 6GHz, FR1 is often (interchangeably) referred to as the “sub-6GHz” band in various documents and articles. Similar naming issues sometimes arise with respect to FR2, which is often (interchangeably) referred to as the “millimeter wave” band in documents and articles, although it is different from the extremely high frequency (EHF) band (30GHz–300GHz), which is identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0035] In view of the above, unless otherwise specifically stated, it should be understood that the term "below 6 GHz" and the like, if used herein, can broadly represent frequencies that may be less than 6 GHz, may be within FR1, or may include mid-band frequencies. In addition, unless otherwise specifically stated, it should be understood that the term "millimeter wave" and the like, if used herein, can broadly represent frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band.

[0036] The base station 102, whether a small cell 102' or a large cell (e.g., a macro base station), may include / may be referred to as an eNB, a gNodeB (gNB), or another type of base station. Certain base stations, such as the gNB 180, may operate in traditional sub-6 GHz spectrum, millimeter wave frequencies, and / or near millimeter wave frequencies when communicating with the UE 104. When the gNB 180 operates in millimeter wave or near millimeter wave frequencies, the gNB 180 may be referred to as a millimeter wave base station. The millimeter wave base station 180 may utilize beamforming 182 with the UE 104 to compensate for path loss and short range. The base station 180 and the UE 104 may each include multiple antennas, such as antenna elements, antenna panels, and / or antenna arrays to facilitate beamforming.

[0037] Base station 180 may transmit beamformed signals in one or more transmit directions 182' to UE 104. UE 104 may receive beamformed signals from base station 180 in one or more receive directions 182". UE 104 may also transmit beamformed signals to base station 180 in one or more transmit directions. Base station 180 may receive beamformed signals from UE 104 in one or more receive directions. Base station 180 / UE 104 may perform beam training to determine the best receive and transmit directions for each of base station 180 / UE 104. The transmit and receive directions for base station 180 may be the same or different. The transmit and receive directions for UE 104 may be the same or different.

[0038] The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Typically, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are delivered through the serving gateway 166, which itself is connected to the PDN gateway 172. The PDN gateway 172 provides UE IP address allocation and other functions. The PDN gateway 172 and the BM-SC 170 are connected to IP services 176. The IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services. The BM-SC 170 may provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 may serve as an entry point for content provider MBMS delivery, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS delivery. The MBMS Gateway 168 may be used to distribute MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts specific services, and may be responsible for session management (start / stop) and collecting eMBMS related billing information.

[0039] The core network 190 may include an access and mobility management function (AMF) 192, other AMFs 193, a session management function (SMF) 194, and a user plane function (UPF) 195. AMF 192 may communicate with a unified data management (UDM) 196. AMF 192 is a control node that handles signaling between UE 104 and the core network 190. Typically, AMF 192 provides QoS flow and session management. All user Internet Protocol (IP) packets are delivered through UPF 195. UPF 195 provides UE IP address allocation and other functions. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, intranet, IP multimedia subsystem (IMS), packet switching (PS) streaming (PSS) services, and / or other IP services.

[0040] Base stations may include and / or be referred to as gNBs, Node Bs, eNBs, access points, base transceiver stations, radio base stations, radio transceivers, transceiver functions, basic service sets (BSSs), extended service sets (ESSs), transmit receive points (TRPs), or some other suitable terminology. Base stations 102 provide access points to EPC 160 or core network 190 for UEs 104. Examples of UEs 104 include cellular phones, smart phones, session initiation protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, tablets, smart devices, wearable devices, vehicles, electric meters, gas pumps, large and small kitchen appliances, healthcare devices, implants, sensors / actuators, displays, or any other similarly functional device. Some of UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, toasters, vehicles, heart monitors, etc.). UE 104 may also be referred to as a station, a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable terminology.

[0041] Reference again Figure 1 In certain aspects, the UE 104 may be configured to suspend communications with the base station 102 / 180 based on an instruction from the base station 102 / 180. For example, the UE 104 may include a silence component (198) configured to suspend communications with the base station 102 / 180 based on an instruction from the base station 102 / 180. The UE 104 may receive a silence instruction for at least one of uplink communications or downlink communications from the base station 102 / 180. The UE 104 may determine a first duration associated with at least one of the uplink communications or downlink communications based on the silence instruction. The UE 104 may suppress all of at least one of the uplink communications or downlink communications with the base station 102 / 180 for the first duration in response to receiving the silence instruction.

[0042] Reference again Figure 1In some aspects, the base station 102 / 180 may be configured to configure the UE 104 to suspend communications for a duration based on channel quality. For example, the base station 102 / 180 may include a silence component (199) configured to configure the UE 104 to suspend communications for a duration based on channel quality. The base station 102 / 180 may determine a first duration for suspending at least one of uplink communications or downlink communications with the UE 104. The base station 102 / 180 may send a silence instruction for at least one of the uplink communications or downlink communications to the UE 104 indicating the first duration. The base station 102 / 180 may suppress all of at least one of the uplink communications or downlink communications with the UE 104 for the first duration based on sending the silence instruction.

[0043] Although the following description may focus on 5G NR, the concepts described herein may be applicable to other similar areas such as LTE, LTE-A, CDMA, GSM, and other wireless / radio access technologies.

[0044] Figure 2A FIG200 is a diagram illustrating an example of a first subframe within a 5G NR frame structure. Figure 2B FIG230 is a diagram illustrating an example of DL channels within a 5G NR subframe. Figure 2C Figure 250 illustrates an example of a second subframe within a 5G NR frame structure. Figure 2D 280 is a diagram illustrating an example of UL channels within a 5G NR subframe. The 5G NR frame structure may be frequency division duplex (FDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within a subcarrier set are dedicated to either DL or UL, or may be time division duplex (TDD), where for a particular set of subcarriers (carrier system bandwidth), subframes within a subcarrier set are dedicated to both DL and UL. Figure 2A , 2C In the example provided, the 5G NR frame structure is assumed to be TDD, where subframe 4 is configured with slot format 28 (primarily DL), where D is DL, U is UL, and F is flexible between DL / UL, and subframe 3 is configured with slot format 1 (all UL). Although subframes 3 and 4 are shown as having slot formats 1 and 28, respectively, any particular subframe can be configured with any of the various available slot formats 0-61. Slot formats 0 and 1 are all DL and UL, respectively. Other slot formats 2-61 include a mix of DL, UL and flexible symbols. The UE is configured with the slot format (dynamically through DL control information (DCI), or semi-statically / statically through radio resource control (RRC) signaling) through the received slot format indicator (SFI). Note that the following description also applies to the 5G NR frame structure that is TDD.

[0045] Other wireless communication technologies may have different frame structures and / or different channels. A frame (10ms) may be divided into 10 equally sized subframes (1ms). Each subframe may include one or more time slots. A subframe may also include microslots, which may include 7, 4, or 2 symbols. Each time slot may include 7 or 14 symbols, depending on the time slot configuration. For time slot configuration 0, each time slot may include 14 symbols, and for time slot configuration 1, each time slot may include 7 symbols. The symbols on the DL may be cyclic prefix (CP) orthogonal frequency division multiplexing (OFDM) (CP-OFDM) symbols. The symbols on the UL may be CP-OFDM symbols (for high throughput scenarios) or discrete Fourier transform (DFT) spread OFDM (DFT-s-OFDM) symbols (also known as single carrier frequency division multiple access (SC-FDMA) symbols) (for power-limited scenarios; limited to single stream transmission). The number of time slots in a subframe is based on the time slot configuration and parameter set (numerology). For slot configuration 0, different parameter sets μ0 to 4 allow 1, 2, 4, 8, and 16 slots per subframe, respectively. For slot configuration 1, different parameter sets μ0 to 2 allow 2, 4, and 8 slots per subframe, respectively. Accordingly, for slot configuration 0 and parameter set μ, there are 14 symbols / slot and 2 μ timeslots / subframes. The subcarrier spacing and symbol length / duration are functions of the parameter set. The subcarrier spacing can be equal to 2 μ *15kHz, where μ is parameter set 0 to 4. Thus, parameter set μ=0 has a subcarrier spacing of 15kHz, while parameter set μ=4 has a subcarrier spacing of 240kHz. The symbol length / duration is inversely related to the subcarrier spacing. Figures 2A-2D An example of a slot configuration 0 with 14 symbols per slot and a parameter set μ=2 with 4 slots per subframe is provided. The slot duration is 0.25 ms, the subcarrier spacing is 60 kHz, and the symbol duration is approximately 16.67 μs. Within a set of frames, there may be one or more different bandwidth parts (BWPs) that are frequency-division multiplexed (see Figure 2B ). Each BWP can have a specific set of parameters.

[0046] A resource grid may be used to represent a frame structure. Each slot includes a resource block (RB) (also referred to as a physical RB (PRB)) extending over 12 consecutive subcarriers. The resource grid is divided into a plurality of resource elements (REs). The number of bits carried by each RE depends on the modulation scheme.

[0047] like Figure 2AAs shown, some of the REs carry reference (pilot) signals (RS) for the UE. The RS may include a demodulation RS (DM-RS) (indicated as R for a particular configuration, but other DM-RS configurations are possible) and a channel state information reference signal (CSI-RS) for channel estimation at the UE. The RS may also include a beam measurement RS (BRS), a beam refinement RS (BRRS), and a phase tracking RS (PT-RS).

[0048] Figure 2B The figure shows an example of various DL channels within a subframe of a frame. The physical downlink control channel (PDCCH) carries DCI within one or more control channel elements (CCEs) (e.g., 1, 2, 4, 8, or 16 CCEs), each CCE including six RE groups (REGs), each REG including 12 consecutive REs in the OFDM symbol of the RB. The PDCCH within a BWP may be referred to as a control resource set (CORESET). The UE is configured to monitor PDCCH candidates in a PDCCH search space (e.g., a common search space, a UE-specific search space) during a PDCCH monitoring opportunity for the CORESET, wherein the PDCCH candidates have different DCI formats and different aggregation levels. Additional BWPs may be located at higher and / or lower frequencies across the channel bandwidth. The primary synchronization signal (PSS) may be within symbol 2 of a specific subframe of a frame. The PSS is used by the UE 104 to determine subframe / symbol timing and physical layer identification. The secondary synchronization signal (SSS) may be within symbol 4 of a specific subframe of a frame. The SSS is used by the UE to determine the physical layer cell identity group number and the radio frame timing. Based on the physical layer identity and the physical layer cell identity group number, the UE can determine the physical cell identifier (PCI). Based on the PCI, the UE can determine the position of the above-mentioned DM-RS. The physical broadcast channel (PBCH) carrying the master information block (MIB) can be logically grouped with the PSS and SSS to form a synchronization signal (SS) / PBCH block (also referred to as an SS block (SSB)). The MIB provides the number of RBs in the system bandwidth and the system frame number (SFN). The physical downlink shared channel (PDSCH) carries user data, broadcast system information (such as system information blocks (SIBs)) that is not sent via the PBCH, and paging messages.

[0049] like Figure 2CAs shown, some of the REs carry DM-RS for channel estimation at the base station (indicated as R for one specific configuration, but other DM-RS configurations are possible). The UE may send DM-RS for the physical uplink control channel (PUCCH) and DM-RS for the physical uplink shared channel (PUSCH). The PUSCH DM-RS may be sent in the first one or two symbols of the PUSCH. Depending on whether a short PUCCH or a long PUCCH is sent and on the specific PUCCH format used, the PUCCH DM-RS may be sent in different configurations. The UE may send a sounding reference signal (SRS). The SRS may be sent in the last symbol of the subframe. The SRS may have a comb structure, and the UE may send the SRS on one of the combs. The SRS may be used by the base station for channel quality estimation to enable frequency-dependent scheduling on the UL.

[0050] Figure 2D The figure shows an example of various UL channels within a subframe of a frame. The PUCCH may be located as indicated in a configuration. The PUCCH carries uplink control information (UCI), such as scheduling requests, channel quality indicator (CQI), precoding matrix indicator (PMI), rank indicator (RI), and hybrid automatic repeat request (HARQ) acknowledgement (ACK) (HARQ-ACK) information (ACK / negative ACK (NACK)) feedback. The PUSCH carries data and may additionally be used to carry a buffer status report (BSR), a power headroom report (PHR), and / or UCI.

[0051] Figure 33 is a block diagram of a base station 310 communicating with a UE 350 in an access network. In the DL, IP packets from the EPC 160 may be provided to a controller / processor 375. The controller / processor 375 implements layer 3 and layer 2 functions. Layer 3 includes a radio resource control (RRC) layer, while layer 2 includes a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, and a medium access control (MAC) layer. The controller / processor 375 provides RRC layer functions associated with broadcasting of system information (e.g., MIB, SIB), RRC connection control (e.g., RRC connection paging, RRC connection establishment, RRC connection modification, and RRC connection release), inter-radio access technology (RAT) mobility, and measurement configuration for UE measurement reporting; PDCP layer functions related to header compression / decompression, security (encryption, decryption, integrity protection, integrity verification), and handover support functions; RLC layer functions associated with delivery of upper layer packet data units (PDUs), error correction through ARQ, concatenation, segmentation and reassembly of RLC service data units (SDUs), re-segmentation of RLC data PDUs, and reordering of RL data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs to transport blocks (TBs), demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0052] The transmit (TX) processor 316 and the receive (RX) processor 370 implement layer 1 functions associated with various signal processing functions. Layer 1 including the physical (PHY) layer may include error detection on the transmission channel, forward error correction (FEC) decoding / decoding of the transmission channel, interleaving, rate matching, mapping to physical channels, modulation / demodulation of physical channels, and MIMO antenna processing. The TX processor 316 processes the mapping to the signal constellation based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-phase shift keying (M-PSK), M-quadrature amplitude modulation (M-QAM)). The decoded and modulated symbols are then split into parallel streams. Each stream can then be mapped to an OFDM subcarrier, multiplexed with a reference signal (e.g., pilot) in the time domain and / or frequency domain, and then combined together using an inverse fast Fourier transform (IFFT) to produce a physical channel carrying a time domain OFDM symbol stream. The OFDM stream is spatially precoded to generate multiple spatial streams. Channel estimates from a channel estimator 374 may be used to determine coding and modulation schemes, as well as for spatial processing. Channel estimates may be derived from reference signals and / or channel condition feedback sent by the UE 350. Each spatial stream may then be provided to a different antenna 320 via a separate transmitter 318TX. Each transmitter 318TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0053] At the UE 350, each receiver 354RX receives a signal through its respective antenna 352. Each receiver 354RX recovers the information modulated onto the RF carrier and provides the information to the receive (RX) processor 356. The TX processor 368 and the RX processor 356 implement layer 1 functions associated with various signal processing functions. The RX processor 356 can perform spatial processing on the information to recover any spatial stream destined for the UE 350. If multiple spatial streams are destined for the UE 350, they can be combined into a single OFDM symbol stream by the RX processor 356. The RX processor 356 then converts the OFDM symbol stream from the time domain to the frequency domain using a fast Fourier transform (FFT). The frequency domain signal includes a separate OFDM symbol stream for each subcarrier of the OFDM signal. By determining the most likely signal constellation point sent by the base station 310, the symbol and reference signal on each subcarrier are recovered and demodulated. These soft decisions can be based on the channel estimate calculated by the channel estimator 358. The soft decisions are then decoded and deinterleaved to recover the data and control signals originally sent on the physical channel by the base station 310. The data and control signals are then provided to the controller / processor 359 which implements layer 3 and layer 2 functions.

[0054] The controller / processor 359 may be associated with a memory 360 that stores program codes and data. The memory 360 may be referred to as a computer readable medium. In the UL, the controller / processor 359 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover IP packets from the EPC 160. The controller / processor 375 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0055] Similar to the functions described in conjunction with the DL transmission of the base station 310, the controller / processor 359 provides RRC layer functions associated with system information (e.g., MIB, SIB) acquisition, RRC connection, and measurement reporting; PDCP layer functions associated with header compression / decompression and security (encryption, decryption, integrity protection, integrity verification); RLC layer functions associated with delivery of upper layer PDUs, error correction through ARQ, concatenation, segmentation and reassembly of RLC SDUs, resegmentation of RLC data PDUs, and reordering of RLC data PDUs; and MAC layer functions associated with mapping between logical channels and transport channels, multiplexing of MAC SDUs to TBs, demultiplexing of MAC SDUs from TBs, scheduling information reporting, error correction through HARQ, priority handling, and logical channel prioritization.

[0056] Channel estimates derived by a channel estimator 358 from a reference signal or feedback sent by the base station 310 may be used by a TX processor 368 to select the appropriate coding and modulation schemes, and to facilitate spatial processing. The spatial streams generated by the TX processor 368 may be provided to different antennas 352 via separate transmitters 354TX. Each transmitter 354TX may modulate an RF carrier with a corresponding spatial stream for transmission.

[0057] UL transmissions are processed at the base station 310 in a manner similar to that described in conjunction with the receiver functionality at the UE 350. Each receiver 318RX receives a signal through its respective antenna 320. Each receiver 318RX recovers information modulated onto an RF carrier and provides the information to the RX processor 370.

[0058] The controller / processor 375 may be associated with a memory 376 that stores program codes and data. The memory 376 may be referred to as a computer readable medium. In the UL, the controller / processor 375 provides demultiplexing between transport channels and logical channels, packet reassembly, decryption, header decompression, control signal processing to recover IP packets from the UE 350. The IP packets from the controller / processor 375 may be provided to the EPC 160. The controller / processor 375 is also responsible for error detection using ACK and / or NACK protocols to support HARQ operations.

[0059] At least one of the TX processor 368, the RX processor 356, and the controller / processor 359 may be configured to perform a combined Figure 1 of 198 aspects.

[0060] At least one of the TX processor 316, the RX processor 370, and the controller / processor 375 may be configured to perform a combined Figure 1 199 aspects.

[0061] In some scenarios, the base station may determine that the conditions on the channel on which the base station communicates with the UE have deteriorated to the extent that the communication is significantly affected. For example, if the base station receives a specific number of negative acknowledgement (NACK) feedback messages from the UE within a specific time frame, the base station may determine that the channel conditions have deteriorated.

[0062] If the channel conditions between the base station and the UE are relatively poor (e.g., such that each transmission requires multiple retransmissions), continuing to attempt communication may be detrimental to both the base station and the UE. For example, continued communication attempts may consume resources, such as power and / or processing resources. In addition, continued communication attempts may introduce signaling overhead, which may negatively impact surrounding devices (such as other UEs and / or base stations) by causing interference and / or reducing the amount of available resources.

[0063] In view of the foregoing, there is a need for a method to address scenarios in which a base station and a UE have difficulty communicating due to relatively poor channel conditions. Figure 4-8 Various techniques and solutions for base stations and UEs are described in situations where communications are adversely affected by poor channel conditions. For example, in certain aspects, such as when a base station determines that channel conditions for a certain UE are relatively poor (e.g., after receiving a certain number of NACK feedback messages consecutively from the UE), the base station may determine to refrain from sending certain periodic downlink data to the UE and / or refrain from receiving certain periodic uplink data from the UE. Figure 4-8 Further aspects and examples are described.

[0064] Figure 4 4 is a call flow chart 400 of signaling between UE 404 and base station 402. Base station 402 may be configured to provide at least one cell. UE 404 may be configured to communicate with base station 402. For example, in Figure 1 In the context of , base station 402 may correspond to base station 102 / 180, and accordingly, a cell may include a geographic coverage area 110 in which communication coverage is provided and / or a small cell 102' having a coverage area 110'. In addition, UE 404 may correspond to at least UE 104. In another example, in Figure 3In the context of , base station 402 may correspond to base station 310 and UE 402 may correspond to UE 350. Optional aspects are illustrated with dashed lines.

[0065] The base station 402 may be configured to send one or more downlink messages 422 to the UE 404. Each of the one or more downlink messages 422 may include downlink data and / or control information, which may be separated on one or more messages and / or signaling, and the UE 404 may be scheduled to receive these messages and / or signaling. In certain aspects, the downlink messages 422 may include periodic and / or semi-periodic traffic, for example, such that one set of downlink messages 422 includes one occasion for periodic or semi-periodic traffic, another set of downlink messages 422 includes another occasion for periodic or semi-periodic traffic, and so on. For example, the downlink messages 422 may include downlink data and / or control information configured according to a semi-periodic scheduling (SPS).

[0066] In certain aspects, the downlink messages 422 may include scheduling information for the UE 404, such as an uplink configuration grant provided by RRC signaling (e.g., type 1) and / or an uplink configuration grant carried on a downlink control channel (e.g., type 2), which may be activated or deactivated by the base station 402. Accordingly, one or more of the downlink messages 422 may allocate a set of resources on which the UE 404 may transmit without performing a scheduling request procedure, such as a set of resources on an uplink data channel (e.g., PUSCH).

[0067] In certain aspects, the UE 404 may be configured for HARQ feedback for the downlink messages 422. The base station 402 may expect a corresponding ACK feedback message after each time the UE 404 successfully receives one of the downlink messages 422, or a corresponding NACK feedback message after each time the UE 404 does not successfully receive one of the downlink messages 422. For example, the UE 404 may be configured to send ACK / NACK feedback messages in response to downlink periodic and / or semi-periodic traffic, such as, but not limited to, SPS traffic.

[0068] The UE 404 may be scheduled by the base station 402 to send one or more uplink messages 424 to the base station 402. In certain aspects, one or more of the uplink messages 424 may include uplink data and / or control information. In certain aspects, one or more of the uplink messages 424 may include ACK feedback or NACK feedback corresponding to one of the downlink messages 422.

[0069] For example, the UE 404 may receive or attempt to receive each of the one or more downlink messages 422. If the UE 404 successfully receives one of the downlink messages 422, the UE 404 may send one of the uplink messages 424 indicating the corresponding ACK feedback message. If the UE 404 receives and decodes one of the downlink messages 422, and one of the downlink messages 422 passes any applicable decoding check performed by the UE 404, such as a cyclic redundancy check (CRC) and / or a message integrity check (MIC), the UE 404 may successfully receive one of the downlink messages 422.

[0070] In some instances, if the UE 404 does not successfully receive one of the downlink messages 422, the UE 404 may send one of the uplink messages 424 indicating a corresponding NACK feedback message. The UE 404 may not successfully receive one of the downlink messages 422 if the UE 404 fails to receive a message that it is scheduled to receive and / or if the message fails one or more applicable decoding checks performed by the UE 404, such as a CRC and / or a MIC.

[0071] In certain aspects, the UE 404 may determine the channel quality, such as by performing measurements based on signaling received from the base station 402 (e.g., a reference signal that may be sent with one or more downlink messages 422). For example, the UE 404 may determine a CQI. The UE 404 may send one or more of the uplink messages 424 to indicate the determined channel quality—e.g., the UE 404 may indicate the CQI in one or more of the uplink messages 424.

[0072] Based on the one or more uplink messages 424, the base station 402 may determine at 426 that conditions on a channel or medium over which the base station 402 communicates with the UE 404 are poor. In certain aspects, the base station 402 may determine 426 that channel conditions are poor based on the base station 402 failing to successfully receive a certain number of uplink messages 424. For example, the base station 402 may compare the number of consecutive unsuccessfully received uplink messages (e.g., a set of NACK feedback messages) 424 to a first threshold, and if the number of consecutive unsuccessfully received uplink messages (e.g., a set of NACK feedback messages) 424 meets (e.g., meets or exceeds) the first threshold, the base station 402 may determine at 426 that the channel conditions are poor.

[0073] In certain aspects, the base station 402 may determine at 426 that the channel condition is poor based on one or more of the uplink messages 424 indicating NACK feedback. For example, the base station 402 may compare the number of consecutively received uplink messages 424 indicating NACK feedback to a second threshold. If the number of consecutively received uplink messages 424 indicating NACK feedback meets (e.g., reaches or exceeds) the second threshold, the base station 402 may determine at 426 that the channel condition is poor.

[0074] In certain aspects, the base station 402 may determine at 426 that the channel condition is poor based on one or more of the uplink messages 424 indicating the channel quality determined by the UE 404. For example, one or more of the uplink messages 424 may indicate a CQI, and the base station 402 may determine at 426 that the channel condition is poor based on the channel quality indicated by the UE 404 (e.g., the CQI).

[0075] In some aspects, if the base station 402 determines at 426 that the channel conditions are poor, the base station 402 may determine that communication with the UE 404 should be suspended, for example, for a certain duration, after which the channel conditions may have improved and the communication may be resumed. In some aspects, the base station 402 may determine that communication with the UE 404 should be suspended based on another condition (e.g., in addition to the poor channel conditions). For example, the base station 402 may determine that one or more transmission opportunities for periodic and / or semi-periodic services should be skipped, and therefore communication with the UE 404 should be suspended. By way of illustration, the base station 402 may determine that the base station 402 has no data to send to the UE 404 in the next one or more SPS opportunities; however, the UE 404 may still send NACK feedback associated with the next one or more SPS opportunities because the UE 404 unexpectedly does not receive SPS data in the next one or more SPS opportunities. Therefore, the base station 402 can determine that communication with the UE 404 should be suspended, and the base station 402 skips the next one or more SPS opportunities, which can potentially save power at the UE 404. In some instances, the base station 402 can be configured to deactivate and reactivate SPS via RRC signaling. However, in some instances, such as low-latency applications including but not limited to URLLC or industrial IOT, RRC signaling may not meet the strict latency requirements of low-latency applications. In this way, the present disclosure proposes to utilize the DCI or MAC-CE-based approach discussed herein, which meets the strict latency requirements for low-latency applications.

[0076] If the base station 402 determines that communication with the UE 404 should be suspended (e.g., due to poor channel conditions, due to skipping an opportunity for sending data and / or control information, due to another reason), the base station 402 can determine at least one duration at 428. In certain aspects, the base station 402 can determine the duration at 428 as at least one of a quantized value, a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with periodic traffic, a number of cycles associated with SPS traffic, or a configuration grant. In certain aspects, the quantized value can include an assigned duration that can be provided by an index and can have a decreasing granularity (e.g., a timeline that can be linear or exponentially increasing).

[0077] For example, the base station 402 may be configured with a set of values ​​for the duration and / or may tabulate it (e.g., the base station 402 may include a table having a set of values ​​stored in a memory). The base station 402 may determine the duration based on the number of consecutive unsuccessfully received uplink messages 424 and / or the number of consecutive uplink messages 424 indicating NACK feedback, such as by identifying a value corresponding to the number of consecutive unsuccessfully received uplink messages 424 and / or the number of consecutive uplink messages 424 indicating NACK feedback.

[0078] In certain aspects, each value in the set of values ​​may have a corresponding index, which may be preconfigured or assigned by the base station 402. The UE 404 may have stored in memory information indicating each of the set of values ​​and the corresponding corresponding index. For example, the UE 404 may be preconfigured with such information, or the base station 402 may send such information to the UE 404 before channel conditions deteriorate.

[0079] In certain aspects, if the channel conditions are poor, the base station 402 may determine to suspend uplink and downlink communications with the UE 404. For example, the suspension of communications may include suspension of both downlink periodic and / or semi-periodic traffic (e.g., SPS traffic) to the UE 404 and uplink ACK / NACK feedback from the UE in response to the downlink periodic and / or semi-periodic traffic. In certain aspects, the suspension of communications may include suspension of traffic for uplink configuration grants (e.g., type 1 and type 2)—that is, the UE 404 may have been allocated resources for uplink communications through a configuration grant, but the base station 402 may determine that such traffic should be suspended even when resources have been allocated. The suspension of communications may also include all other types of uplink communications and / or downlink communications.

[0080] The pause in communications may be temporary, and therefore, the base station 402 may determine a duration for the pause in communications. In certain aspects, the base station 402 may determine a duration for the pause in communications at 428. The base station 428 may determine a duration for the pause in communications that includes a first duration for uplink communications and a second duration for downlink communications. Since the base station 402 may pause both uplink and downlink communications, the first duration and the second duration may be the same duration. For example, the first duration and the second duration may refer to the same element (e.g., a timer or other timing element).

[0081] In order to notify UE 404 of the suspension of uplink and / or downlink communication, base station 402 may generate a silent instruction 430. In some aspects, base station 402 may generate silent instruction 430 as a set of bits in a MAC control element (CE) (MAC-CE) and / or DCI. For example, base station 402 may insert one or more bits of an index corresponding to the duration of the communication suspension in at least one of MAC-CE and / or DCI. In some aspects, one or more bits may correspond to the duration for which both uplink and downlink communications will be suspended. In some aspects, base station 402 may insert one or more bits of an index corresponding to a first duration for the suspension of uplink communication, and, for example, insert one or more bits corresponding to a second duration for the suspension of downlink communication in the same or another MAC-CE and / or DCI indicating the suspension of downlink communication.

[0082] In certain aspects, the base station 402 may generate the silence instruction 430 as data and / or control information in a message or other signaling. For example, the base station 402 may include a quantized value, such as a number of time slots or a number of cycles of a periodic service, in a message indicating a suspension of one or both of uplink and / or downlink communications. If the base station 402 determines that both uplink and downlink communications should be suspended, the base station 402 may generate a silence instruction to indicate the duration of the suspension for uplink and downlink communications. The base station may generate a silence instruction to indicate a first duration for the suspension of uplink communications and a second duration for the suspension of downlink communications. Since the first and second durations may refer to the same element for the suspension of both uplink and downlink communications, the silence instruction may indicate a duration (e.g., both the first duration and the second duration), which may correspond to an element, such as a timer configured at the UE 404 for suspending communications.

[0083] The base station 402 may then send a silence instruction 430 to the UE 404. The UE 404 may receive the silence instruction 430. The UE 404 may determine at 432 a duration indicating that uplink and downlink communications with the base station 402 should be suspended. In certain aspects, the UE 404 may determine a first duration corresponding to the suspension of uplink communications and a second duration corresponding to the suspension of downlink communications based on the silence instruction 430. For example, the UE 404 may identify one or more bits of an index corresponding to the duration in the MAC-CE and / or DCI indicating that uplink and downlink communications should be suspended. The UE 404 may use the index to identify a corresponding value in a table (e.g., a lookup table) or other relational data structure. In certain aspects, the UE 404 may identify at least one quantized value in a message or other signaling indicating that uplink and downlink communications with the base station 402 should be suspended.

[0084] In response to receiving the silence instruction 430, the UE 404 may, in certain aspects, suppress all uplink communications and / or downlink communications for the indicated duration 410. For example, the UE 404 may set a countdown timer to the duration 410 in response to receiving the silence instruction 430. The UE 404 may configure the countdown timer with a stored value corresponding to the index indicated by the silence instruction 430. In certain aspects, if the base station 402 suspends uplink and downlink communications separately, the UE 404 may set another timer for the other of the uplink or downlink communications.

[0085] In certain aspects, such as suppressing all uplink and / or downlink communications for a duration 410, UE 404 may suppress any uplink transmission, including data and / or control information, to base station 402 according to an uplink configuration grant. The UE may also suppress any ACK / NACK feedback in response to any downlink communication (e.g., if only uplink communications are suspended, and downlink communications are not suspended). When suppressing all downlink communications for a duration 410, UE 404 may suppress receiving (e.g., detecting, decoding, etc.) downlink SPS communications, as well as any other downlink periodic communications. In certain aspects, during the suppression of transmission, data may be delayed at UE 404. For example, base station 402 may suspend data transmission and / or reception to and / or from UE 404 for a given duration. In certain instances, base station 402 may determine that data sent from UE 404 may not be successfully received (e.g., due to poor channel conditions, etc.), causing base station 402 to suspend transmission / reception.

[0086] In certain aspects, the silence instruction 430 may be applied regardless of any discontinuous reception (DRX) configuration of the UE 404 and / or any discontinuous transmission (DTX) configuration of the UE 404. For example, the DRX / DTX configuration may not affect uplink communications and / or ACK / NACK feedback sent according to the uplink configuration grant (both type 1 and type 2 uplink configuration grants). The UE 404 may suppress uplink communications scheduled by type 1 or type 2 uplink configuration grants and uplink communications for ACK / NACK feedback in response to receiving a silence instruction 430 indicating that the uplink communication is suspended for a duration 410. In certain aspects, the DRX / DTX configuration may not affect downlink SPS or periodic traffic (or may be scheduled using a "wake-up" cycle consistent with the downlink SPS or periodic traffic). The UE 404 may suppress receiving downlink SPS traffic and periodic traffic in response to receiving a silence instruction 430 indicating that the downlink communication is suspended for a duration 410.

[0087] In certain aspects, the UE 404 can conserve power due to the quiescing instruction 430. The UE 404 can transition from a relatively higher power state or “awake” state (e.g., where the UE 404 can transmit and receive) to a relatively lower power state or “sleep” state (e.g., where the UE 404 does not transmit or receive) for at least a portion of the duration 410.

[0088] The UE 404 may resume downlink communications 434 and uplink communications 436 upon expiration of the duration 410, such as upon expiration of a countdown timer configured by the UE 404. If the suspension of uplink communications and the suspension of downlink communications are configured separately, the UE 404 may resume uplink communications 436 upon expiration of a first duration and may resume downlink communications 434 upon expiration of a second duration. In certain aspects, the UE 404 may transition from a relatively lower power state to a relatively higher power state upon expiration of the duration 410.

[0089] During the duration 410, the base station 402 may correspondingly suppress receiving uplink communications from the UE 404 and / or sending downlink communications to the UE 404. The base station 402 may reduce over-the-air signaling that may cause unintended interference to other devices, and / or may increase the amount of resources available for communication with other UEs. The base station 402 may resume receiving uplink communications 436 and sending downlink communications 434 upon expiration of the duration 410 (e.g., based on the silence instruction 430). If the suspension of uplink communications and the suspension of downlink communications are configured separately, the base station 402 may resume uplink communications 436 upon expiration of the first duration and may resume downlink communications 434 upon expiration of the second duration.

[0090] Figure 5 5 is a flow chart of a method of wireless communication. The method may be performed by a UE or a component of a UE (e.g., UE 104, 404; apparatus 602; cellular baseband processor 604, which may include memory 360 and which may be the entire UE 350 or a component of UE 350, such as TX processor 368, RX processor 356, and / or controller / processor 359). One or more of the operations shown may be omitted, swapped, or simultaneous. Optional aspects are illustrated with dashed lines. The method may allow a UE to suspend communication with a base station based on an instruction from a base station.

[0091] In some aspects, for example, at 502, the UE may send information indicating channel quality to the base station. For example, 502 may be performed by the channel quality component 640 of the apparatus 602. In some aspects, the UE may send a set of NACK feedback messages to the base station. The information indicating channel quality may include a set of NACK feedback messages. The set of NACK feedback messages may implicitly indicate to the base station that the channel quality is poor. In some aspects, the information may include a CQI that may be determined by the UE. Figure 4 In the context of , the UE 404 can send one or more uplink messages 424 to the base station 402, and one or more of the uplink messages 424 can indicate NACK feedback and / or can indicate a CQI.

[0092] At 504, the UE may receive a silence instruction for at least one of uplink communication and / or downlink communication. For example, 504 may be performed by the silence component 642 of the device 602. The UE may receive a silence instruction from a base station. In some aspects, the silence instruction may be received based on information indicating a channel quality sent to the base station. In some aspects, the silence instruction may be received based on one or more periodic or semi-periodic opportunities associated with the reception of at least one of data or control information to be skipped by the base station. In some aspects, the silence instruction may be applicable to both uplink and downlink communications. The silence instruction may be included in a MAC CE and / or DCI message. For example, the silence instruction may include an index in the MAC CE and / or DCI message. In some aspects, the silence instruction may be applied regardless of at least one of the DRX cycle and / or DTX cycle configured for the UE. Figure 4 In the context of , the UE 404 may receive a muting instruction 430 from the base station 402 for at least one of uplink communication or downlink communication.

[0093] At 506, the UE 104 may determine a first duration associated with at least one of the uplink communication and / or the downlink communication. For example, 506 may be performed by the duration component 644 of the device 602. The UE may determine the first duration associated with at least one of the uplink and / or downlink communications based on the silence instruction. For example, the first duration may be determined based on a preconfigured timer value corresponding to an index indicated in a MAC CE and / or DCI message. In certain aspects, the first duration may include at least one of: a quantized value, a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with a periodic service, a number of cycles associated with an SPS service, and / or a configuration authorization. Figure 4 In the context of , the UE 404 may determine 432 the duration based on receiving the silence instruction 430 .

[0094] In certain aspects, for example, at 508, the UE may determine a second duration associated with the other of at least one of the uplink communication and / or the downlink communication. For example, 508 may be performed by the duration component 644 of the device 602. The UE may determine the second duration associated with the other of the uplink communication and / or the downlink communication based on the silence instruction. In certain aspects, the second duration may be determined based on a preconfigured timer value corresponding to an index indicated in a MAC CE and / or DCI message. In certain aspects, the first and second durations may be the same. For example, the first and second durations may be indicated as a single duration in the silence instruction and may correspond to the same element, such as the same timer at the UE. Figure 4 In the context of , the UE 404 may determine 432 the duration based on receiving the silence instruction 430 .

[0095] At 510, the UE may suppress all of at least one of uplink communications and / or downlink communications with the base station for a first duration. For example, 510 may be performed by the suppression component 646 of the device 602. The UE may suppress all of at least one of uplink communications and / or downlink communications with the base station for a first duration in response to receiving a silence instruction. In some aspects, suppressing all of at least one of the uplink communications and / or downlink communications may include suppressing all of both uplink communications and downlink communications with the base station for the first duration in response to receiving a silence instruction. In some aspects, one of the uplink communications or the downlink communications may include at least one of an SPS service, an uplink configuration authorization, an ACK feedback, and / or a NACK feedback. Figure 4 In the context of , UE 404 may suppress all uplink communications with base station 402 for a first duration 410 .

[0096] In certain aspects, for example, at 512, the UE may suppress all of the other of at least one of uplink communications and / or downlink communications with the base station for the second duration. For example, 512 may be performed by the suppression component 646 of the apparatus 602. The UE may suppress all of the other of at least one of uplink communications and / or downlink communications with the base station for the second duration in response to receiving the silence instruction. Figure 4 In the context of , UE 404 may suppress all downlink communications with base station 402 for duration 410 .

[0097] In certain aspects, for example, at 514, the UE may transition from a higher power state to a lower power state. For example, 514 may be performed by a transition component 648 of the apparatus 602. The UE may transition from a higher power state to a lower power state for at least a portion of the first duration. Transitioning from a higher power state (e.g., an awake state) to a lower power state (e.g., a sleep state) allows the UE to save power due to the quiesce instruction at least during the duration indicated in the quiesce instruction. Figure 4 In the context of , the UE may transition from a higher power state to a lower power state for at least a portion of the first duration 410 .

[0098] In certain aspects, for example, at 516, the UE may transition from a lower power state to a higher power state. For example, 516 may be performed by a transition component 648 of the apparatus 602. The UE may transition from the lower power state to the higher power state after a first duration. For example, the UE may transition from the lower power state to the higher power state upon expiration of the first duration so that the UE may resume communication with the base station. Figure 4 In the context of , UE 404 may transition from a lower power state to a higher power state after a first duration 410 .

[0099] Figure 6 600 is a diagram illustrating an example of a hardware implementation for an apparatus 602. The apparatus 602 is a UE and includes a cellular baseband processor 604 (also referred to as a modem) coupled to a cellular RF transceiver 622 and one or more subscriber identity modules (SIM) cards 620, an application processor 606 coupled to a secure digital (SD) card 608 and a screen 610, a Bluetooth module 612, a wireless local area network (WLAN) module 614, a global positioning system (GPS) module 616, and a power supply 618. The cellular baseband processor 604 communicates with the UE 104 and / or the BS 102 / 180 via the cellular RF transceiver 622. The cellular baseband processor 604 may include a computer-readable medium / memory. The computer-readable medium / memory may be non-transitory. The cellular baseband processor 604 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. The software, when executed by the cellular baseband processor 604, causes the cellular baseband processor 604 to perform the various functions described above. The computer-readable medium / memory may also be used to store data that is manipulated by the cellular baseband processor 604 when executing software. The cellular baseband processor 604 also includes a receiving component 630, a communication manager 632, and a transmitting component 634. The communication manager 632 includes one or more of the components shown. The components within the communication manager 632 may be stored in a computer-readable medium / memory and / or configured as hardware within the cellular baseband processor 604. The cellular baseband processor 604 may be a component of the UE 350 and may include a memory 360 and / or at least one of a TX processor 368, an RX processor 356, and a controller / processor 359. In one configuration, the device 602 may be a modem chip and include only the baseband processor 604, while in another configuration, the device 602 may be the entire UE (e.g., see Figure 3 350) and includes additional modules of the device 602 discussed above.

[0100] The communication manager 632 includes a channel quality component 640 that is configured to send information indicating channel quality to the base station (e.g., as described in conjunction with Figure 5The communication manager 632 also includes a quiescing component 642 configured to receive a quiescing instruction for at least one of uplink communications and / or downlink communications (e.g., as described in conjunction with Figure 5 The communication manager 632 also includes a duration component 644 configured to determine a first duration associated with at least one of the uplink communication and / or the downlink communication (e.g., as described in conjunction with Figure 5 The duration component 644 may be configured to determine a second duration associated with the other of at least one of the uplink communication and / or the downlink communication (eg, as described in conjunction with Figure 5 508). The communication manager 632 also includes a suppression component 646, which is configured to suppress all of at least one of uplink communications and / or downlink communications with the base station for a first duration (e.g., as described in conjunction with Figure 5 510). The suppression component 646 can be configured to suppress all of at least one of the uplink communication and / or downlink communication with the base station for the second duration (e.g., as described in conjunction with Figure 5 512). The communication manager 632 also includes a transition component 648, which is configured to transition from a higher power state to a lower power state (e.g., as described in conjunction with Figure 5 514) transition component 648 can be configured to transition from a lower power state to a higher power state (e.g., as described in conjunction with Figure 5 516 described above).

[0101] The apparatus may include executing the aforementioned Figure 5 Each of the additional components in the flowchart of the algorithm box. Figure 5 Each block in the flowchart of can be performed by a component, and the apparatus may include one or more of those components. The component may be: one or more hardware components specifically configured to perform the stated process / algorithm, implemented by a processor configured to perform the stated process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0102] In one configuration, the device 602, in particular the cellular baseband processor 604, includes a component for receiving a silence instruction for at least one of uplink communication or downlink communication from a base station. The device includes a component for determining a first duration associated with at least one of the uplink communication or downlink communication based on the silence instruction. The device includes a component for suppressing all of at least one of the uplink communication or downlink communication with the base station for the first duration in response to receiving the silence instruction. The component for suppressing all of at least one of the uplink communication or downlink communication can be configured to suppress all of both uplink communication and downlink communication with the base station for the first duration in response to receiving the silence instruction. The device also includes a component for determining a second duration associated with the other of at least one of the uplink communication or downlink communication based on the silence instruction. The device also includes a component for suppressing all of the other of at least one of the uplink communication or downlink communication with the base station for the second duration in response to receiving the silence instruction. The device also includes a component for transitioning from a higher power state to a lower power state for at least a portion of the first duration. The device also includes a component for transitioning from the lower power state to the higher power state after the first duration. The apparatus also includes a component for sending a set of NACK feedback messages to the base station. The silent instruction is received based on the set of NACK feedback messages. The above-mentioned components may be one or more of the above-mentioned components of the apparatus 602 configured to perform the functions described by the above-mentioned components. As described above, the apparatus 602 may include a TX processor 368, an RX processor 356, and a controller / processor 359. Thus, in one configuration, the above-mentioned components may be a TX processor 368, an RX processor 356, and a controller / processor 359 configured to perform the functions described by the above-mentioned components.

[0103] Figure 7 700 is a flow chart of a method of wireless communication. The method may be performed by a base station or a component of a base station (e.g., base station 102 / 180, 402; apparatus 802; baseband processor 804, which may include memory 376 and which may be the entire base station 310 or a component of the base station 310, such as TX processor 316, RX processor 370, and / or controller / processor 375). One or more of the operations shown may be omitted, swapped, or simultaneous. Optional aspects are illustrated with dashed lines. The method may allow the base station to configure the UE 104 to suspend communication for a certain duration based on channel quality.

[0104] In some aspects, for example, at 702, the base station may receive information indicating channel quality from the UE. For example, 702 may be performed by the channel quality component 840 of the apparatus 802. In some aspects, the base station may receive a set of NACK feedback messages from the UE. The information indicating channel quality may include a set of NACK feedback messages. The set of NACK feedback messages may implicitly indicate that the channel quality is poor. In some aspects, the base station may receive a message indicating a CQI from the UE. Figure 4 In the context of , the base station 402 may receive one or more uplink messages 424 from the UE 404, and one or more of the uplink messages 424 may indicate NACK feedback and / or may indicate a CQI.

[0105] In some aspects, for example at 704, the base station may determine whether the channel quality is poor. For example, 704 may be performed by the determining component 842 of the apparatus 802. The base station may determine whether the channel quality is poor based on information indicating the channel quality. In some aspects, the base station may compare the number of sets of NACK feedback messages to a threshold. The base station may determine whether the number of sets of NACK feedback messages meets the threshold, which may indicate that the channel quality is poor. In some aspects, the base station may determine whether the CQI received from the UE indicates that the channel quality is poor. Figure 4 In the context of , the base station 402 can determine whether the channel quality is poor based on the CQI received from the UE 404 and / or based on a comparison of the number of one or more consecutive uplink messages 424 indicating NACK feedback with a second threshold.

[0106] In certain aspects, for example, at 706, if the base station determines that the channel quality is not bad (e.g., if the number of one or more consecutive uplink messages indicating NACK feedback fails to meet a threshold, or if the CQI does not meet a CQI threshold) and / or if one or more periodic or semi-periodic opportunities associated with the transmission of at least one of data or control information to the UE will not be skipped, then at 708, the base station may continue at least one of uplink and / or downlink communications with the UE. For example, 706 may be performed by the determining component 842 of the apparatus 802. At Figure 4 In the context of , the base station 402 can continue downlink communications 434 and / or uplink communications 436 with the UE 404.

[0107] In certain aspects, if the base station determines at 706 that the channel quality is poor (e.g., if the number of one or more consecutive uplink messages 424 indicating NACK feedback meets a threshold and / or if the CQI meets a CQI threshold) and / or if one or more periodic or semi-periodic opportunities associated with the transmission of at least one of data or control information to the UE are to be skipped, then at 710, the base station may determine a first duration for suspending at least one of uplink communications and / or downlink communications with the UE. For example, 710 may be performed by a duration component 844 of the apparatus 802. The first duration may include at least one of: a quantization value, a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with periodic services, a number of cycles associated with SPS services, and / or a configuration authorization. Figure 4 In the context of , the base station 402 can determine the duration 428 based on the poor channel conditions.

[0108] In some aspects, for example, at 712, the base station may determine a second duration for suspending at least one of uplink communications and / or downlink communications with the UE. For example, 706 may be performed by a duration component 844 of the apparatus 802. In some aspects, the first and second durations may be the same. For example, the first and second durations may be indicated as a single duration and may correspond to the same element, such as the same timer at the UE. Figure 4 In the context of , the base station 402 can determine the duration 428 based on the poor channel conditions.

[0109] At 714, the base station may send a silence instruction for at least one of uplink communication or downlink communication. For example, 714 may be performed by the silence component 846 of the device 802. The base station may send a silence instruction 430 to the UE. The base station may send a silence instruction for at least one of uplink communication or downlink communication indicating a first duration to the UE. The silence instruction may be configured to cause the UE to transition from a higher power state to a lower power state within at least a portion of the first duration, and to transition from a lower power state to a higher power state after the first duration. In some aspects, the silence instruction may be applicable to both uplink and downlink communications. In some aspects, the silence instruction may also indicate a second duration. The silence instruction may be included in a MAC CE and / or DCI message. For example, the silence instruction may be an index in a MAC CE and / or DCI message. The index may correspond to a preconfigured timer value at the UE. In some aspects, the silence instruction may be applied regardless of at least one of the DRX cycle and / or DTX cycle configured for the UE. In certain aspects, a muting instruction may be sent based on one or more periodic or semi-periodic opportunities associated with the transmission of at least one of data or control information to the UE to be skipped. In certain aspects, a muting instruction may be sent if the number of sets of NACK feedback messages meets a threshold. Figure 4 In the context of , the base station 402 may send a muting instruction 430 to the UE 404 for at least one of uplink communication and / or downlink communication.

[0110] At 716, the base station may suppress all of at least one of uplink communications and / or downlink communications with the UE. For example, 716 may be performed by the suppression component 848 of the device 802. The base station may suppress all of at least one of uplink communications and / or downlink communications with the UE for a first duration based on sending a silence instruction. In certain aspects, suppressing all of at least one of uplink communications or downlink communications with the UE may include suppressing all of both uplink communications and downlink communications with the UE for a first duration based on sending a silence instruction. In certain aspects, at least one of the uplink communications or downlink communications may include at least one of SPS traffic, uplink configuration authorization, ACK feedback, and / or NACK feedback. Figure 4 In the context of , the base station 402 can suppress all uplink communications with the UE 404 for a first duration 410.

[0111] At 718, the base station may suppress all of at least one of uplink communications and / or downlink communications with the UE. For example, 718 may be performed by the suppression component 848 of the device 802. The base station may suppress all of at least one of uplink communications and / or downlink communications with the UE for a second duration based on sending a silence instruction. In some aspects, the first and second durations may be the same. For example, the first and second durations may be indicated as a single duration in the silence instruction and may correspond to the same element, such as the same timer. The base station may resume communication with the UE upon expiration of the second duration. Figure 4 In the context of , the base station 402 can suppress all downlink communications with the UE 404 for a duration 410, and can resume communications 434, 436 with the UE when the duration 410 expires.

[0112] Figure 8 800 is a diagram illustrating an example of a hardware implementation for an apparatus 802. The apparatus 802 is a BS and includes a baseband unit 804. The baseband unit 804 can communicate with the UE 104 via a cellular RF transceiver 822. The baseband unit 804 may include a computer-readable medium / memory. The baseband unit 804 is responsible for general processing, including the execution of software stored on the computer-readable medium / memory. The software, when executed by the baseband unit 804, causes the baseband unit 804 to perform the various functions described above. The computer-readable medium / memory can also be used to store data manipulated by the baseband unit 804 when executing the software. The baseband unit 804 also includes a receiving component 830, a communication manager 832, and a sending component 834. The communication manager 832 includes one or more of the components shown. The components within the communication manager 832 may be stored in a computer-readable medium / memory and / or configured as hardware within the baseband unit 804. The baseband unit 804 may be a component of the BS 310 and may include the memory 376 and / or at least one of the TX processor 316 , the RX processor 370 , and the controller / processor 375 .

[0113] The communication manager 832 includes a channel quality component 840, which can receive information indicating channel quality from the UE (e.g., as described in conjunction with Figure 7 702). The communication manager 832 also includes a determination component 842, which can determine whether the channel quality is poor (e.g., as described in conjunction with Figure 7 704). The determining component 842 can be configured to determine whether the channel quality is poor or not (e.g., as described in conjunction with Figure 7The communication manager 832 also includes a duration component 844, which can determine a first duration (e.g., as described in conjunction with 706) to suspend at least one of uplink communications and / or downlink communications with the UE. Figure 7 The duration component 844 may be configured to determine a second duration (eg, as described in conjunction with FIG. 710 ) for suspending at least one of uplink communication and / or downlink communication with the UE. Figure 7 712). The communication manager 832 also includes a muting component 846, which can send a muting instruction for at least one of uplink communication and / or downlink communication (e.g., as described in conjunction with Figure 7 714). The communication manager 832 also includes a suppression component 848, which can suppress all of at least one of uplink communications and / or downlink communications with the UE (e.g., as described in conjunction with Figure 7 716 described above). The suppression component 848 can be configured to suppress all of at least one of the uplink communication and / or downlink communication with the UE (e.g., as combined with Figure 7 718 described).

[0114] The apparatus may include executing the aforementioned Figure 7 Each of the additional components in the flowchart of the algorithm box. Figure 7 Each block in the flowchart of can be performed by a component, and the apparatus may include one or more of those components. The component may be: one or more hardware components specifically configured to perform the stated process / algorithm, implemented by a processor configured to perform the stated process / algorithm, stored in a computer-readable medium for implementation by a processor, or some combination thereof.

[0115] In one configuration, the device 802, in particular the baseband unit 804, includes a component for determining a first duration for suspending at least one of uplink communication or downlink communication with the UE. The device includes a component for sending a silence instruction for at least one of the uplink communication or downlink communication indicating the first duration to the UE. The device includes a component for suppressing all of at least one of the uplink communication or downlink communication with the UE for the first duration based on sending the silence instruction. The component for suppressing all of at least one of the uplink communication or downlink communication with the UE can be configured to suppress all of both uplink communication and downlink communication with the UE for the first duration based on sending the silence instruction. The device also includes a component for determining a second duration for suspending the other of at least one of the uplink communication or downlink communication. The silence instruction also indicates the second duration. The device also includes a component for suppressing all of the other of at least one of the uplink communication or downlink communication with the UE for the second duration based on sending the silence instruction. The device also includes a component for receiving a set of NACK feedback messages from the UE. The device also includes a component for comparing the number of the set of NACK feedback messages with a threshold. When the number of sets of NACK feedback messages meets a threshold, a silent instruction is sent. The above-mentioned components may be one or more of the above-mentioned components of the device 802 configured to perform the functions described by the above-mentioned components. As described above, the device 802 may include a TX processor 316, an RX processor 370, and a controller / processor 375. Thus, in one configuration, the above-mentioned components may be a TX processor 316, an RX processor 370, and a controller / processor 375 configured to perform the functions described by the above-mentioned components.

[0116] The present disclosure describes various techniques and solutions for base stations and UEs in situations where communications are adversely affected by poor channel conditions. For example, in certain aspects, such as if the base station determines that the channel conditions for a certain UE are poor (e.g., after receiving a certain number of NACK feedback messages consecutively from the UE), the base station may determine to suppress sending certain periodic downlink data to the UE and / or suppress receiving certain periodic uplink data from the UE. At least one advantage of the present disclosure is that the base station can reduce air signaling by suspending communications with the UE, which can reduce unexpected interference to other devices, and increase the amount of resources available for communication with other UEs. At least another advantage of the present disclosure is that the UE can enter a reduced power state while communications between the UE and the base station are suspended, which can help extend the battery life of the UE.

[0117] It should be understood that the specific order or hierarchy of blocks in the disclosed process / flowchart is an illustration of an example approach. Based on design preferences, it will be understood that the specific order or hierarchy of blocks in the process / flowchart can be rearranged. In addition, certain blocks can be combined or omitted. The attached method claims present the elements of the various blocks in a sample order and are not meant to be limited to the specific order or hierarchy presented.

[0118] The following examples are merely illustrative and may be combined with other embodiments or aspects of the teachings described herein without limitation.

[0119] Aspect 1 is a method of wireless communication at a UE, comprising: receiving a silence instruction for at least one of uplink communication or downlink communication from a base station; determining a first duration associated with at least one of the uplink communication or downlink communication based on the silence instruction; and suppressing all of at least one of the uplink communication or downlink communication with the base station within the first duration in response to receiving the silence instruction.

[0120] In aspect 2, the method of aspect 1 also includes: a silence instruction is used for both uplink communication and downlink communication, and suppressing all of at least one of the uplink communication or the downlink communication also includes suppressing all of both uplink communication and downlink communication with the base station within a first duration in response to receiving the silence instruction.

[0121] In aspect 3, the method of aspect 1 or 2 also includes: determining a second duration associated with at least one of the uplink communications or the downlink communications based on a silence instruction; and suppressing all of at least one of the uplink communications or the downlink communications with the base station during the second duration in response to receiving the silence instruction.

[0122] In aspect 4, the method of any of aspects 1-3 further comprises: transitioning from the higher power state to the lower power state for at least a portion of the first duration.

[0123] In aspect 5, the method of any one of aspects 1-4 further comprises: transitioning from the lower power state to the higher power state after the first duration.

[0124] In aspect 6, the method of any one of aspects 1-5 further includes: suppressing overlap with at least one of a DRX cycle or a DTX cycle or including at least one of a DRX cycle or a DTX cycle.

[0125] In aspect 7, the method of any one of aspects 1-6 further comprises: sending a set of negative acknowledgement (NACK) feedback messages to the base station, wherein the muting instruction is received based on the set of NACK feedback messages.

[0126] In aspect 8, the method of any one of aspects 1-7 further includes: the first duration includes at least one of the following: a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with periodic services, a number of cycles associated with SPS services, or a configuration grant.

[0127] In aspect 9, the method of any one of aspects 1-8 further includes: at least one of the uplink communication or the downlink communication includes at least one of an SPS service, an uplink configuration grant, an ACK feedback, or a NACK feedback.

[0128] In aspect 10, the method of any one of aspects 1-9 further includes: the muting instruction is included in at least one of a MAC-CE or a DCI message.

[0129] In aspect 11, the method of any one of aspects 1-10 further includes: the muting instruction includes an index in at least one of a MAC CE or a DCI message, and the first duration is determined based on a preconfigured timer value corresponding to the index.

[0130] In aspect 12, the method of any of aspects 1-11 further comprises: receiving a muting instruction based on one or more periodic or semi-periodic opportunities associated with reception of at least one of data or control information to be skipped by the base station.

[0131] Aspect 13 is a device comprising one or more processors and one or more memories, the one or more memories being in electronic communication with the one or more processors and storing instructions executable by the one or more processors to cause the device to implement a method as in any one of Aspects 1-12.

[0132] Aspect 14 is a system or apparatus, comprising means for implementing the method in any one of aspects 1-12 or implementing the apparatus in any one of aspects 1-12.

[0133] Aspect 15 is a non-transitory computer-readable storage medium storing instructions, which can be executed by one or more processors to cause the one or more processors to implement the method in any one of aspects 1-12.

[0134] Aspect 16 is a method of wireless communication at a base station, comprising: determining a first duration for suspending at least one of uplink communication or downlink communication with a UE; sending a silence instruction for at least one of uplink communication or downlink communication to the UE indicating the first duration; and suppressing all of at least one of uplink communication or downlink communication with the UE within the first duration based on sending the silence instruction.

[0135] In aspect 17, the method of aspect 16 also includes: the silence instruction is used for both uplink communication and downlink communication, and suppressing all of at least one of the uplink communication or downlink communication with the UE also includes suppressing all of both uplink communication and downlink communication with the UE within a first duration based on sending the silence instruction.

[0136] In aspect 18, the method of aspect 16 or 17 also includes: determining a second duration for suspending the other of at least one of the uplink communication or the downlink communication, wherein the silence instruction also indicates the second duration; and suppressing all of the other of at least one of the uplink communication or the downlink communication with the UE within the second duration based on sending the silence instruction.

[0137] In aspect 19, the method of any one of aspects 16-18 further comprises: the silencing instruction is configured to cause the UE to transition from the higher power state to the lower power state within at least part of the first duration, and to transition from the lower power state to the higher power state after the first duration.

[0138] In aspect 20, the method of any one of aspects 16-19 further comprises: suppressing overlap with or including at least one of a DRX cycle or a DTX cycle.

[0139] In aspect 21, the method of any one of aspects 16-20 further includes: receiving a set of NACK feedback messages from the UE; comparing the number of the sets of NACK feedback messages with a threshold, wherein when the number of the sets of NACK feedback messages meets the threshold, a muting instruction is sent.

[0140] In aspect 22, the method of any one of aspects 16-21 further comprises: the first duration comprises at least one of the following: a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with periodic services, a number of cycles associated with SPS services, or a configuration grant.

[0141] In aspect 23, the method of any one of aspects 16-22 further includes: at least one of the uplink communication or the downlink communication includes at least one of SPS traffic, uplink configuration grant, ACK feedback, or NACK feedback.

[0142] In aspect 24, the method of any one of aspects 16-23 further comprises: the muting instruction is included in at least one of a MAC-CE or a DCI message.

[0143] In aspect 25, the method of any one of aspects 16-24 further comprises: the muting instruction comprises an index in at least one of a MAC CE or a DCI message corresponding to a pre-configured timer value at the UE.

[0144] In aspect 26, the method of any one of aspects 16-25 further comprises: the muting instruction is transmitted based on one or more periodic or semi-periodic occasions associated with the transmission of at least one of data or control information to the UE to be skipped.

[0145] Aspect 27 is a device comprising one or more processors and one or more memories, the one or more memories being in electronic communication with the one or more processors and storing instructions executable by the one or more processors to cause the device to implement a method as in any one of Aspects 16-26.

[0146] Aspect 28 is a system or an apparatus, comprising means for implementing a method as in any one of aspects 16-26 or implementing an apparatus as in any one of aspects 16-26.

[0147] Aspect 29 is a non-transitory computer-readable storage medium storing instructions, which can be executed by one or more processors to cause the one or more processors to implement the method in any one of aspects 16-26.

[0148] The previous 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 can be applied to other aspects. Therefore, the claims are not intended to be limited to the aspects shown herein, but are intended to be given a full scope consistent with the language of the claims, wherein unless specifically stated, references to elements in the singular form are not intended to mean "one and only one", but "one or more". Terms such as "if", "when ..." and "while" should be interpreted as meaning "under ..." conditions rather than implying an instantaneous time relationship or reaction. That is, these phrases, for example, "when ...", do not imply an instantaneous action in response to an action occurring or during an action occurring, but only imply that an action will occur if the condition is met, but no specific or instantaneous time constraints are required for the action occurring. The word "exemplary" is used herein to mean "used as an example, instance or illustration". Any aspect described as "exemplary" herein is not necessarily interpreted as being more preferred or advantageous than 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,” “one or more of A, B, or C,” “at least one of A, B and C,” “one or more 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 multiples of A, multiples of B, or multiples of C. Specifically, combinations such as “at least one of A, B, or C,” “one or more of A, B, or C,” “at least one of A, B, and C,” “one or more of A, B, and C,” and “A, B, C, or any combination thereof” may be only A, only B, only C, 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 of A, B, or C. All structural and functional equivalents to the elements of the various aspects described throughout this disclosure that are known or later come to be known to those of ordinary skill in the art are expressly incorporated herein by reference and are intended to be covered by the claims. Moreover, nothing disclosed herein is intended to be dedicated to the public regardless of whether such disclosure is expressly stated in the claims. The words “module,” “mechanism,” “element,” “device,” etc. may not be substitutes for the word “component.” Thus, unless a claim element is explicitly recited using the phrase “component for…,” any claim element should not be interpreted as a component-plus-function.

Claims

1. A method for wireless communication at a user equipment UE, comprising: receiving a grant for scheduling uplink communication or downlink communication, the grant comprising at least one of a configuration grant, a scheduling acknowledgement ACK feedback, or a scheduling negative acknowledgement NACK feedback; receiving a quiescing instruction for at least one of uplink communication or downlink communication from a network node; determining a first duration associated with at least one of the uplink communication or the downlink communication based on the quiescing instruction; as well as In response to receiving the silence instruction, either of the uplink communication or the downlink communication with the network node scheduled by the grant is suppressed for the first duration.

2. The method of claim 1, further comprising: determining, based on the quiescing instruction, a second duration associated with the other of at least one of the uplink communication or the downlink communication; as well as All of the other of at least one of the uplink communication or downlink communication with the network node is suppressed for the second duration in response to receiving the quieting instruction.

3. The method of claim 1, further comprising: Transitioning from a higher power state to a lower power state during at least a portion of the first duration.

4. The method of claim 3, further comprising: Transitioning from the lower power state to the higher power state after the first duration.

5. The method of claim 1, wherein: The suppression overlaps with at least one of a discontinuous reception DRX cycle or a discontinuous transmission DTX cycle or includes at least one of the DRX cycle or the DTX cycle.

6. The method of claim 1, further comprising: sending a set of NACK feedback messages to the network node, The silence instruction is received based on the set of NACK feedback messages.

7. The method of claim 1, wherein: The first duration includes at least one of the following: a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with periodic services, a number of cycles associated with semi-periodic scheduled SPS services, or a configuration grant.

8. The method of claim 1, wherein: At least one of the uplink communication or the downlink communication includes at least one of semi-periodic scheduling of SPS services, uplink configuration grants, ACK feedback, or NACK feedback.

9. The method of claim 1, wherein: The muting instruction is included in at least one of a Medium Access Control MAC Control Element CE or a Downlink Control Information DCI message.

10. The method of claim 9, wherein: The muting instruction includes an index in at least one of the MAC CE or the DCI message, and the first duration is determined based on a preconfigured timer value corresponding to the index.

11. The method of claim 1, wherein: The quieting instruction may be received based on one or more periodic or semi-periodic opportunities associated with reception of at least one of data or control information to be skipped by the network node.

12. An apparatus for wireless communication at a user equipment UE, comprising: Memory; as well as at least one processor coupled to the memory and configured to: receiving a grant for scheduling uplink communication or downlink communication, the grant comprising at least one of a configuration grant, a scheduling acknowledgement ACK feedback, or a scheduling negative acknowledgement NACK feedback; receiving a quiescing instruction for at least one of uplink communication or downlink communication from a network node; determining a first duration associated with at least one of the uplink communication or the downlink communication based on the quiescing instruction; as well as In response to receipt of the quiet instruction, any of the uplink communication or downlink communication with the network node scheduled by the grant is suppressed for the first duration.

13. The device of claim 12, wherein: The at least one processor is further configured to: determining, based on the quiescing instruction, a second duration associated with the other of at least one of the uplink communication or the downlink communication; as well as All of the other of at least one of the uplink communication or downlink communication with the network node is suppressed for the second duration in response to receipt of the quiet instruction.

14. The device of claim 12, wherein: The at least one processor is further configured to: Transitioning from a higher power state to a lower power state during at least a portion of the first duration.

15. A method of wireless communication at a network node, comprising: Sending an authorization for scheduling uplink communication or downlink communication to a user equipment UE, wherein the authorization includes at least one of a configuration authorization, a scheduling confirmation ACK feedback, or a scheduling negative confirmation NACK feedback; determining a first duration for suspending at least one of uplink communication or downlink communication with the UE; sending a muting instruction for at least one of the uplink communication or the downlink communication indicating the first duration to the UE; as well as Any of the uplink communication or downlink communication with the UE scheduled by the grant is suppressed for the first duration based on sending the silence instruction.

16. The method of claim 15, further comprising: determining a second duration for suspending the other of at least one of the uplink communication or the downlink communication, wherein the quieting instruction further indicates the second duration; as well as All of the other of at least one of the uplink communication or the downlink communication with the UE is suppressed for the second duration based on sending the muting instruction.

17. The method of claim 15, wherein: The quiescing instructions are configured to cause the UE to transition from a higher power state to a lower power state during at least a portion of the first duration and to transition from the lower power state to the higher power state after the first duration.

18. The method of claim 15, wherein: The suppression overlaps with at least one of a discontinuous reception DRX cycle or a discontinuous transmission DTX cycle or includes at least one of the DRX cycle or the DTX cycle.

19. The method of claim 15, further comprising: receiving a set of NACK feedback messages from the UE, and comparing the number of the set of NACK feedback messages with a threshold, When the number of the set of NACK feedback messages meets the threshold, the silence instruction is sent.

20. The method of claim 15, wherein: The first duration includes at least one of the following: a number of milliseconds, a number of time slots, a number of subframes, a number of cycles associated with periodic services, a number of cycles associated with semi-periodic scheduled SPS services, or a configuration grant.

21. The method of claim 15, wherein: At least one of the uplink communication or the downlink communication includes at least one of semi-periodic scheduling of SPS services, uplink configuration grants, ACK feedback, or NACK feedback.

22. The method of claim 15, wherein: The muting instruction is included in at least one of a Medium Access Control MAC Control Element CE or a Downlink Control Information DCI message.

23. The method of claim 22, wherein: The muting instruction includes an index in at least one of a MAC CE or the DCI message corresponding to a preconfigured timer value at the UE.

24. The method of claim 15, wherein: The muting instructions are sent based on one or more periodic or semi-periodic opportunities associated with the transmission of at least one of data or control information to the UE to be skipped.

25. An apparatus for wireless communication at a network node, comprising: Memory; as well as at least one processor coupled to the memory and configured to: Sending an authorization for scheduling uplink communication or downlink communication to a user equipment UE, wherein the authorization includes at least one of a configuration authorization, a scheduling confirmation ACK feedback, or a scheduling negative confirmation NACK feedback; determining a first duration for suspending at least one of uplink communication or downlink communication with the UE; sending a muting instruction for at least one of the uplink communication or the downlink communication indicating the first duration to the UE; as well as Any of the uplink communication or downlink communication with the UE scheduled by the grant is suppressed for the first duration based on sending the silence instruction.

26. The device of claim 25, wherein: The at least one processor is further configured to: determining a second duration for suspending the other of at least one of the uplink communication or the downlink communication, wherein the quieting instruction further indicates the second duration; as well as The other of the uplink communication or the downlink communication with the UE is suppressed in its entirety for the second duration based on the sending of the muting instruction.

27. An apparatus for wireless communication at a user equipment, comprising: means for receiving a grant for scheduling uplink or downlink communications, the grant comprising at least one of a configuration grant, a scheduling acknowledgement (ACK) feedback, or a scheduling negative acknowledgement (NACK) feedback; means for receiving a quiescing instruction for at least one of uplink communication or downlink communication from a network node; means for determining a first duration associated with at least one of the uplink communication or the downlink communication based on the quiescing instruction; as well as Means for suppressing, in response to receiving the quiet instruction, any of the uplink or downlink communications with the network node scheduled by the grant for the first duration.

28. An apparatus for wireless communication at a network node, comprising: A means for sending a grant for scheduling uplink communication or downlink communication to a user equipment UE, wherein the grant comprises at least one of a configuration grant, a scheduling acknowledgement ACK feedback or a scheduling negative acknowledgement NACK feedback; means for determining a first duration for suspending at least one of uplink communication or downlink communication with the UE; means for sending a muting instruction for at least one of the uplink communication or the downlink communication to the UE indicating the first duration; as well as Means for suppressing, for the first duration, either the uplink communication or the downlink communication with the UE scheduled by the grant based on sending the muting instruction.

29. A computer-readable medium storing code for wireless communication at a user equipment, the code being executable by a processor of the user equipment to cause the processor to perform the method according to any one of claims 1-11.

30. A computer readable medium storing code for wireless communication at a network node, the code being executable by a processor of the network node to cause the processor to perform the method according to any one of claims 15-24.

31. A computer program product storing code for wireless communication at a user equipment, the code being executable by a processor of the user equipment to cause the processor to perform the method according to any one of claims 1-11.

32. A computer program product storing code for wireless communication at a network node, the code being executable by a processor of the network node to cause the processor to perform the method according to any one of claims 15-24.

Images