Techniques for modifying parameters based on auxiliary information in wireless communications

Abstract

Various aspects described herein relate to transmitting, by a device, auxiliary information to a base station to facilitate configuring one or more parameters for communicating with the base station; detecting, by the device, that an auxiliary response signal including one or more parameters based on the auxiliary information is not received from the base station within a threshold time period; and downgrading, by the device, feedback to be communicated to the base station based on detecting that the auxiliary response signal is not received within the threshold time period.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority to provisional application No. 62 / 783,072, filed on December 20, 2018, entitled “TECHNIQUES FOR MODIFYING PARAMETERS BASED ON ASSISTANCE INFORMATION IN WIRELESS COMMUNICATIONS,” and U.S. patent application No. 16 / 721,641, filed on December 19, 2019, entitled “TECHNIQUES FOR MODIFYING PARAMETERS BASED ON ASSISTANCE INFORMATION IN WIRELESS COMMUNICATIONS,” the entire contents of which are expressly incorporated herein by reference.

[0003] background

[0004] Aspects of the present disclosure relate generally to wireless communication systems, and more particularly to utilizing device assistance information.

[0005] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, etc. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (e.g., time, frequency, and power). 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, and orthogonal frequency division multiple access (OFDMA) systems, and single-carrier frequency division multiple access (SC-FDMA) systems.

[0006] These multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different wireless devices to communicate at a city, country, region, and even global level. For example, the fifth generation (5G) wireless communication technology, which may be referred to as 5G New Radio (5G NR), is designed to expand and support diverse usage scenarios and applications relative to current mobile network generations. On the one hand, 5G communication technology may include: enhanced mobile broadband for human-centric use cases for accessing multimedia content, services, and data; ultra-reliable low latency communications (URLLC) with certain specifications on latency and reliability; and massive machine type communications, which may allow very large numbers of connected devices and the transmission of relatively small amounts of non-delay sensitive information.

[0007] In some wireless communication technologies, a device (e.g., user equipment) may send assistance information to other nodes that schedule communications with other nodes (e.g., base stations) to allow the other nodes to modify communication parameters based on the assistance information received from the device. However, the other nodes (e.g., base stations) may not be obligated to modify the parameters based on the assistance information, which may cause undesirable side effects at the device, such as consuming power when the battery may have a remaining capacity below a threshold.

[0008] Overview

[0009] A brief summary of one or more aspects is given below to provide a basic understanding of such aspects. This summary is not an exhaustive overview of all conceived aspects, and is neither intended to identify the key or critical elements of all aspects nor to define 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 that will be presented later.

[0010] According to an example, a method of wireless communication is provided. The method includes: transmitting, by a device, auxiliary information to a base station to facilitate configuring one or more parameters for communicating with the base station; detecting, by the device, that an auxiliary response signal including one or more parameters based on the auxiliary information is not received from the base station within a threshold time period; and downgrading, by the device, feedback to be communicated to the base station based on detecting that the auxiliary response signal is not received within the threshold time period.

[0011] In another example, a method for wireless communication is provided. The method includes: receiving, by a base station, auxiliary information from a device to facilitate configuring one or more parameters for communicating with the base station; detecting, by the base station, degraded feedback for a signal transmitted to the device that does not include one or more parameters based on the auxiliary information; and transmitting, to the device and based on detecting the degraded feedback, an auxiliary response signal that includes one or more parameters based on the auxiliary information.

[0012] In another example, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to: transmit auxiliary information to a base station to facilitate configuring one or more parameters for communicating with the base station; detect that an auxiliary response signal including one or more parameters based on the auxiliary information is not received from the base station within a threshold time period; and degrade feedback to be communicated to the base station based on detecting that the auxiliary response signal is not received within the threshold time period.

[0013] In yet another example, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to: receive auxiliary information from a device to facilitate configuring one or more parameters for communicating with the base station; detect degraded feedback for a signal transmitted to the device that does not include one or more parameters based on the auxiliary information; and transmit an auxiliary response signal to the device and including one or more parameters based on the auxiliary information based on detecting the degraded feedback.

[0014] In a further example, an apparatus for wireless communication is provided, the apparatus comprising a transceiver, a memory configured to store instructions, and one or more processors communicatively coupled to the transceiver and the memory. The one or more processors are configured to execute instructions to perform the operations of the methods described herein. On the other hand, a device for wireless communication is provided, the device comprising a device for performing the operations of the methods described herein. On the other hand, a computer-readable medium is provided, the computer-readable medium comprising code that can be executed by one or more processors to perform the operations of the methods described herein.

[0015] To achieve the foregoing and related ends, the one or more aspects include the features fully described below and particularly pointed out in the claims. The following description and drawings set forth in detail certain illustrative features of the one or more aspects. However, these features are merely indicative of several of the various ways in which the principles of the various aspects may be employed, and this description is intended to cover all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The disclosed aspects will be described below in conjunction with the accompanying drawings, which are provided to illustrate rather than limit the disclosed aspects, wherein like reference numerals designate like elements, and wherein:

[0018] Figure 1 An example of a wireless communication system according to various aspects of the present disclosure is illustrated;

[0019] Figure 2 is a block diagram illustrating an example of a UE according to various aspects of the present disclosure;

[0020] Figure 3 is a block diagram illustrating an example of a base station according to various aspects of the present disclosure;

[0021] Figure 4 is a flow chart illustrating an example of a method for degrading feedback according to various aspects of the present disclosure;

[0022] Figure 5An example of a system for suppressing transmission feedback according to various aspects of the present disclosure is illustrated;

[0023] Figure 6 An example of a system for transmitting non-acknowledgement feedback according to various aspects of the present disclosure is illustrated;

[0024] Figure 7 An example of a system for transmitting a device information signal according to various aspects of the present disclosure is illustrated;

[0025] Figure 8 An example of a system for refraining from transmitting a channel quality indicator (CQI) report or transmitting a degraded CQI value in accordance with various aspects of the present disclosure is illustrated;

[0026] Fig. 9 is a flow chart illustrating an example of a method for sending an auxiliary response signal according to various aspects of the present disclosure; and

[0027] Fig.10 is a block diagram illustrating an example of a MIMO communication system including a base station and UEs according to various aspects of the present disclosure.

[0028] Detailed Description

[0029] Now, various aspects are described with reference to the accompanying drawings. In the following description, for the purpose of explanation, numerous specific details are set forth to provide a thorough understanding of one or more aspects. However, it is apparent that such aspects can be practiced without these specific details.

[0030] The described features generally relate to modifying communication parameters based on device assistance information. For example, the assistance information may include a recommended parameter value communicated by a first device (e.g., a user equipment (UE)) to a second device (e.g., a base station) to facilitate wireless communication therewith. The first device may provide assistance information to the second device for various reasons, such as to enable the second device to schedule or otherwise modify communication parameters associated with the first device. For example, the first device may recommend parameter values ​​in certain scenarios, such as to save power or resources at the first device. The assistance information may include parameter values, such as the number of antennas used by the first device to communicate with the second device, a discontinuous reception (DRX) parameter value, a control channel (e.g., a physical downlink control channel (PDCCH)) monitoring value, etc. The second device may adjust the communication parameters for the first device accordingly, and in one example, may send an auxiliary response signal to the first device, wherein the auxiliary response signal may be a signal including an indication that the communication parameters have been or are being modified.

[0031] When a first device (such as a UE) transmits assistance information (referred to herein as UE assistance information (UAI)), a second device (such as a base station) that receives the UAI and schedules the UE for communication may not be obligated to modify communication parameters based on the UAI. Failure to modify the parameters may cause the device to enter an undesirable state, such as a state in which the device consumes more power than expected when communicating with the base station (e.g., when the device is in a low battery state). In this case, the device may desire to notify or otherwise motivate or prompt the base station (or underlying network component) to modify the communication parameters, which may be based on the provided UAI. In this regard, for example, the device may operate using a degraded feedback process that the base station may detect and use to determine to modify the communication parameters based on a previously received UAI.

[0032] In one specific example, the device may downgrade feedback by suppressing transmission feedback until an auxiliary response signal is received that can modify communication parameters in view of the UAI. For example, feedback may include hybrid automatic repeat / request (HARQ) feedback, channel quality indicator (CQI) reports, etc. In one example, the device may detect a signal received from a base station after sending the UAI and before receiving the corresponding auxiliary response signal. In this example, the device may suppress transmission of HARQ feedback for the signal until the auxiliary response signal is received, or until the maximum number of retransmissions of the signal is reached. In another example, the device may downgrade feedback by transmitting non-acknowledgement (NACK) feedback for the signal (e.g., whether the signal is correctly received and decoded) until the auxiliary response signal is received, or until the maximum number of retransmissions of the signal is reached. In yet another example, the device may downgrade feedback by sending other signals (such as a sounding reference signal (SRS), a scheduling request (SR), a UAI, a power status signal, or other signals that may include a UAI) to the base station without receiving an auxiliary response signal.

[0033] In another example, the device may downgrade the feedback by suppressing the sending of CQI reports and / or sending CQI reports with downgraded CQI values ​​for a period of time until the auxiliary response signal is received. This may cause the base station to not schedule data signals to the device until the communication parameters are adjusted based on the UAI, or may result in limited downlink data transmission to the device. In any case, in one example, the base station may detect downgraded feedback, and may determine based on the downgraded feedback and the unfinished UAI that the device is sending downgraded feedback for the purpose of requesting the UAI to be considered and used to adjust the communication parameters. The base station may adjust the communication parameters accordingly based on the UAI. The base station may also make this determination based on detecting downgraded feedback and evaluating the channel quality metric to determine whether the channel quality may lead to downgraded feedback. For example, if the channel quality is a threshold quality, the base station may determine that the device is downgrading the channel quality report to request consideration of the UAI, and may use the downgraded channel quality report to adjust the communication parameters. In any case, the device may accordingly motivate or prompt the base station to adjust the communication parameters based on the UAI provided in certain circumstances.

[0034] The following will refer to Figure 1-10 The described features are presented in more detail.

[0035] As used in this application, the terms "component", "module", "system" and similar terms are intended to include computer-related entities, such as but not limited to hardware, firmware, a combination of hardware and software, software, or software in execution. For example, a component can be, but not limited to, a process, a processor, an object, an executable, a thread of execution, a program, and / or a computer running on a processor. As an illustration, both an application running on a computing device and the computing device can be a component. One or more components may reside in a process and / or a thread of execution, and a component may be localized on a computer and / or distributed between two or more computers. In addition, these components can be executed from various computer-readable media on which various data structures are stored. These components can communicate by means of local and / or remote processes, such as according to a signal having one or more data packets, such as data from a component that interacts with a local system, another component in a distributed system, and / or interacts with other systems across a network such as the Internet.

[0036] The technology described herein can be used for various wireless communication systems, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA and other systems. The terms "system" and "network" are usually used interchangeably. A CDMA system can implement radio technologies such as CDMA2000, Universal Terrestrial Radio Access (UTRA). CDMA2000 covers IS-2000, IS-95 and IS-856 standards. IS-2000 versions 0 and A are commonly referred to as CDMA2000 1X, 1X, etc. IS-856 (TIA-856) is commonly referred to as CDMA2000 1xEV-DO, High Rate Packet Data (HRPD), etc. UTRA includes Wideband CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement radio technologies such as Global System for Mobile Communications (GSM). OFDMA systems can implement technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM TM Radio technologies such as UTRA and E-UTRA are part of the Universal Mobile Telecommunications System (UMTS). 3GPP Long Term Evolution (LTE) and Advanced LTE (LTE-A) are new UMTS versions that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2). The techniques described herein can be used for the systems and radio technologies mentioned above as well as for other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio frequency spectrum bands. However, the following description describes an LTE / LTE-A system for example purposes, and LTE terminology is used in most of the following descriptions, but these techniques can also be applied to applications other than LTE / LTE-A (e.g., to fifth generation (5G) new radio (NR) networks or other next generation communication systems).

[0037] The following description provides examples and does not limit the scope, applicability, or examples set forth in the claims. Changes may be made to the functions and arrangements of the elements discussed without departing from the scope of the present disclosure. Various examples may appropriately omit, substitute, or add various procedures or components. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to some examples may be combined in other examples.

[0038] Various aspects or features will be presented in the form of systems that may include a number of devices, components, modules, and the like, etc. It should be understood and appreciated that the various systems may include additional devices, components, modules, etc., and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Combinations of these approaches may also be used.

[0039] 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)) may include a base station 102, a UE 104, an evolved packet core (EPC) 160, and / or a 5G core (5GC) 190. 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). The macro cell may include a base station. The small cell may include a femto cell, a pico cell, and a micro cell. In an example, the base station 102 may also include a gNB 180, as further described herein. In an example, some nodes of the wireless communication system may have a modem 240 and a communication component 242 for providing auxiliary information (e.g., UAI) and / or conveying degraded feedback, and some nodes may have a modem 340 and a scheduling component 342 for receiving auxiliary information (e.g., UAI) and configuring the device with associated communication parameters, as described herein. Although UE 104 is shown as having a modem 240 and a communication component 242 and base station 102 / gNB 180 is shown as having a modem 340 and a scheduling component 342, this is an illustrative example and substantially any node or type of node may include a modem 240 and a communication component 242 and / or a modem 340 and a scheduling component 342 to provide the corresponding functionality described herein.

[0040] The base station 102 configured for 4G LTE (which may be collectively referred to as the Evolved Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN)) may interface with the EPC 160 via a backhaul link 132 (e.g., using an S1 interface). The base station 102 configured for 5G NR (which may be collectively referred to as the Next Generation RAN (NG-RAN)) may interface with the 5GC 190 via a backhaul link 184. The base station 102 may perform, among other functions, one or more of the following 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, distribution of non-access stratum (NAS) messages, 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 alert messages. Base stations 102 may communicate with each other directly or indirectly (e.g., through EPC 160 or 5GC 190) over backhaul link 134 (e.g., using an X2 interface). Backhaul link 134 may be wired or wireless.

[0041] The base station 102 may communicate wirelessly with one or more UEs 104. Each base station 102 may provide communication coverage for a corresponding geographic coverage area 110. There may be overlapping geographic coverage areas 110. For example, a small cell 102' may 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 may be referred to as a heterogeneous network. A heterogeneous network may also include a home evolved Node B (eNB) (HeNB), which may provide services to a restricted group (which may be referred to as a closed subscriber group (CSG)). The communication link 120 between the base station 102 and the UE 104 may include an uplink (UL) (also known as a reverse link) transmission from the UE 104 to the base station 102 and / or a downlink (DL) (also known as a forward link) transmission from the base station 102 to the UE 104. The communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. These communication links may be through one or more carriers. For each carrier allocated in a carrier aggregation of up to Yx MHz (e.g., for x component carriers) for transmission in the DL and / or UL direction, the base station 102 / UE 104 may use a spectrum of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400 MHz, etc.) bandwidth. These carriers may or may not be adjacent to each other. The allocation of carriers may be asymmetric with respect to DL and UL (e.g., more or fewer carriers may be allocated to DL compared to 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).

[0042] In another example, 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 a variety of wireless D2D communication systems, such as, for example, FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

[0043] The wireless communication system may further include a Wi-Fi access point (AP) 150 communicating with a Wi-Fi station (STA) 152 in the 5 GHz unlicensed spectrum via a communication link 154. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) prior to communication to determine whether the channel is available.

[0044] The small cell 102' may operate in a licensed and / or unlicensed spectrum. When operating in an unlicensed spectrum, the small cell 102' may employ NR and use the same 5 GHz unlicensed spectrum as used by the Wi-Fi AP 150. The small cell 102' employing NR in the unlicensed spectrum may boost the coverage of the access network and / or increase the capacity of the access network.

[0045] Whether a small cell 102' or a large cell (e.g., a macro base station), the base station 102 may include an eNB, a gB node (gNB), or other types of base stations. Some base stations (such as gNB 180) may operate in traditional sub-6 GHz spectrum, millimeter wave (mmW) frequencies, and / or near mmW frequencies to communicate with UE 104. When gNB 180 operates in mmW or near mmW frequencies, gNB 180 may be referred to as a mmW base station. Extremely high frequency (EHF) is part of the RF in the electromagnetic spectrum. EHF has a range of 30 GHz to 300 GHz and a wavelength between 1 mm and 10 mm. The radio waves in this band may be referred to as millimeter waves. Near mmW can be extended down to 3 GHz frequencies with a wavelength of 100 mm. The super high frequency (SHF) band extends between 3 GHz and 30 GHz, which is also referred to as centimeter waves. Communications using mmW / near mmW radio frequency bands have extremely high path loss and short range. The mmW base station 180 may utilize beamforming 182 with the UE 104 to compensate for the extremely high path loss and short range. The base station 102 referred to herein may include a gNB 180.

[0046] 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 be in communication 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. In general, 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 transmissions, may be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and may be used to schedule MBMS transmissions. The MBMS gateway 168 may be used to distribute MBMS traffic to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and may be responsible for session management (start / stop) and for collecting eMBMS-related charging information.

[0047] 5GC 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 be in communication with a unified data management (UDM) 196. AMF 192 may be a control node that processes signaling between UE 104 and 5GC 190. In general, AMF 192 may provide QoS flow and session management. User Internet Protocol (IP) packets (e.g., from one or more UEs 104) may be delivered via UPF 195. UPF 195 may provide UE IP address allocation for one or more UEs and other functions. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), a PS streaming service, and / or other IP services.

[0048] A base station may also be referred to as a gNB, a Node B, an evolved Node B (eNB), an access point, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a basic service set (BSS), an extended service set (ESS), a transmission reception point (TRP), or some other suitable term. The base station 102 provides an access point to the EPC 160 or the 5GC 190 for the UE 104. Examples of UE 104 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a tablet device, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a health care device, an implant, a sensor / actuator, a display, or any other similar functional device. Some UEs 104 may be referred to as IoT devices (e.g., parking meters, gas pumps, ovens, vehicles, heart monitors, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also known as Category (CAT)-M, Cat M1) UEs, NB-IoT (also known as CAT NB1) UEs, and other types of UEs. In the present disclosure, eMTC and NB-IoT may refer to future technologies that may evolve from or be based on these technologies. For example, eMTC may include FeMTC (further eMTC), eFeMTC (further enhanced eMTC), mMTC (massive MTC), etc., and NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (further enhanced NB-IoT), 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 term.

[0049] In an example, the communication component 242 of the UE 104 can send the UAI to one or more base stations 102 serving the UE 104 to assist in setting the communication parameters for the UE 104. The scheduling component 342 of the base station 102 can receive the UAI and may not be obligated to set the corresponding communication parameters. As further described herein, in the event that the base station 102 does not adjust the communication parameters for the UE 104 based on the UAI, the communication component 242 can downgrade the feedback to be transmitted to the base station 102, which can cause the scheduling component 342 to adjust the communication parameters for the UE 104 based on the previously received UAI. For example, the communication component 242 can downgrade the feedback by refraining from transmitting the feedback, transmitting a downgraded value of the feedback, etc.

[0050] Now go to Figure 2-10 , various aspects are described with reference to one or more components and one or more methods that can perform the actions or operations described herein, where various aspects in dashed lines may be optional. Figure 4-9 The operations described in the description are presented in a particular order and / or are presented as being performed by example components, but it should be understood that the order of these actions and the components performing the actions may vary depending on the implementation. Moreover, it should be understood that the following actions, functions, and / or components described may be performed by a specially programmed processor, a processor executing specially programmed software or computer-readable media, or by any other combination of hardware components and / or software components capable of performing the described actions or functions.

[0051] refer to Figure 2 , an example of an implementation of UE 104 may include various components, some of which have been described above and are further described herein, including components such as one or more processors 212 and memory 216 in communication via one or more buses 244 and a transceiver 202, which may operate in conjunction with a modem 240 and / or a communication component 242 to transmit UAI and / or degrade feedback for one or more signals.

[0052] In one aspect, the one or more processors 212 may include a modem 240 using one or more modem processors and / or may be part of the modem 240. Thus, various functions associated with the communication component 242 may be included in the modem 240 and / or the processor 212, and in one aspect, may be performed by a single processor, while in other aspects, different ones of these functions may be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 212 may include any one or any combination of the following: a modem processor, or a baseband processor, or a digital signal processor, or a transmit processor, or a receiver processor, or a transceiver processor associated with the transceiver 202. In other aspects, some of the features of the one or more processors 212 and / or the modem 240 associated with the communication component 242 may be performed by the transceiver 202.

[0053] In addition, the memory 216 can be configured to store local versions of data and / or applications 275 used herein, or the communication component 242 and / or one or more subcomponents thereof executed by the at least one processor 212. The memory 216 may include any type of computer-readable medium usable by a computer or the at least one processor 212, such as a random access memory (RAM), a read-only memory (ROM), a tape, a magnetic disk, an optical disk, a volatile memory, a non-volatile memory, and any combination thereof. In one aspect, for example, when the UE 104 is operating the at least one processor 212 to execute the communication component 242 and / or one or more subcomponents thereof, the memory 216 may be a non-transitory computer-readable storage medium storing one or more computer-executable codes defining the communication component 242 and / or one or more subcomponents thereof and / or data associated therewith.

[0054] The transceiver 202 may include at least one receiver 206 and at least one transmitter 208. The receiver 206 may include hardware, firmware, and / or software code executable by a processor for receiving data, the code including instructions and stored in a memory (e.g., a computer-readable medium). The receiver 206 may be, for example, a radio frequency (RF) receiver. In one aspect, the receiver 206 may receive signals transmitted by at least one base station 102. Additionally, the receiver 206 may process such received signals and may also obtain measurements of the signals, such as, but not limited to, Ec / Io, signal-to-noise ratio (SNR), reference signal received power (RSRP), received signal strength indicator (RSSI), etc. The transmitter 208 may include hardware, firmware, and / or software code executable by a processor for transmitting data, the code including instructions and stored in a memory (e.g., a computer-readable medium). Suitable examples of the transmitter 208 may include, but are not limited to, an RF transmitter.

[0055] Also, in an aspect, the UE 104 may include an RF front end 288 that may operate in communication with the one or more antennas 265 and the transceiver 202 for receiving and transmitting radio transmissions, such as wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by the UE 104. The RF front end 288 may be connected to the one or more antennas 265 and may include one or more low noise amplifiers (LNAs) 290, one or more switches 292, one or more power amplifiers (PAs) 298, and one or more filters 296 for transmitting and receiving RF signals.

[0056] In one aspect, the LNA 290 can amplify the received signal to a desired output level. In one aspect, each LNA 290 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular LNA 290 and its specified gain value based on the desired gain value for a particular application.

[0057] In addition, for example, one or more PAs 298 can be used by the RF front end 288 to amplify the signal to obtain an RF output at a desired output power level. In one aspect, each PA 298 can have a specified minimum and maximum gain value. In one aspect, the RF front end 288 can use one or more switches 292 to select a particular PA 298 and its specified gain value based on the desired gain value for a particular application.

[0058] In addition, for example, one or more filters 296 can be used by the RF front end 288 to filter the received signal to obtain the input RF signal. Similarly, in one aspect, for example, a corresponding filter 296 can be used to filter the output from the corresponding PA 298 to produce an output signal for transmission. In one aspect, each filter 296 can be connected to a specific LNA 290 and / or PA 298. In one aspect, the RF front end 288 can use one or more switches 292 to select a transmit or receive path using a specified filter 296, LNA 290, and / or PA 298 based on a configuration as specified by the transceiver 202 and / or the processor 212.

[0059] As such, the transceiver 202 may be configured to transmit and receive wireless signals through one or more antennas 265 via the RF front end 288. In an aspect, the transceiver may be tuned to operate at a specified frequency so that the UE 104 may communicate, for example, with one or more base stations 102 or one or more cells associated with the one or more base stations 102. In an aspect, the modem 240 may configure the transceiver 202 to operate at a specified frequency and power level based on, for example, a UE configuration of the UE 104 and a communication protocol used by the modem 240.

[0060] In one aspect, modem 240 may be a multi-band-multi-mode modem that may process digital data and communicate with transceiver 202 so that digital data is sent and received using transceiver 202. In one aspect, modem 240 may be multi-band and configured to support multiple frequency bands for a specific communication protocol. In one aspect, modem 240 may be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, modem 240 may control one or more components (e.g., RF front end 288, transceiver 202) of UE 104 to enable transmission and / or reception of signals from the network based on a specified modem configuration. In one aspect, modem configuration may be based on the mode of the modem and the frequency band used. In another aspect, modem configuration may be based on UE configuration information associated with UE 104, such as provided by the network during cell selection and / or cell reselection.

[0061] In an aspect, the communication component 242 may optionally include a UAI component 252 for generating a UAI and reporting the UAI to one or more base stations 102 for use in modifying one or more communication parameters for the UE 104, and / or a feedback demotion component 254 for degrading feedback for one or more signals if a response to the UAI (e.g., an auxiliary response signal with one or more communication parameter adjustments) is not received.

[0062] In one aspect, the processor(s) 212 may correspond to a Fig.10 Similarly, the memory 216 may correspond to one or more of the processors described in conjunction with the UE. Fig.10 The memory described by the UE in.

[0063] refer to Figure 3 , an example of an implementation of a base station 102 (e.g., base station 102 and / or gNB 180, as described above) may include various components, some of which have been described above, but also include components such as one or more processors 312 and memory 316 in communication via one or more buses 344 and a transceiver 302, which may operate in conjunction with a modem 340 and a scheduling component 342 to receive UAI and / or adjust communication parameters for a corresponding UE 104.

[0064] The transceiver 302, receiver 306, transmitter 308, one or more processors 312, memory 316, application 375, bus 344, RF front end 388, LNA 390, switch 392, filter 396, PA 398, and one or more antennas 365 may be the same as or similar to corresponding components of UE 104 as described above, but are configured or otherwise programmed for base station operation rather than UE operation.

[0065] In an aspect, the scheduling component 342 may optionally include a parameter configuration component 352 for configuring communication parameters for the UE, which configuration may be based on the received UAI, and / or a feedback processing component 354 for processing feedback received (or not received) from the UE for one or more signals.

[0066] In one aspect, processor(s) 312 may correspond to a combination of Fig.10 Similarly, the memory 316 may correspond to one or more of the processors described in the base station in FIG. Fig.10 The memory described in the base station.

[0067] Figure 4 A flow chart illustrating an example of a method 400 for degrading feedback based on not receiving an indication or other signal for a communication parameter adjustment in response to a reported UAI. In an example, a UE 104 may use Figure 1-2 One or more components described in the method 400 are used to perform the functions described in the method 400.

[0068] In the method 400, at block 402, a UAI may be transmitted to a base station to facilitate configuration of one or more parameters for communicating with the base station. In one aspect, the UAI component 252 (e.g., in conjunction with the processor(s) 212, the memory 216, the transceiver 202, the communication component 242, etc.) may transmit the UAI to the base station to facilitate configuration of one or more parameters for communicating with the base station (e.g., the base station 102 and / or other base stations in the network). For example, the UAI may assist the base station in configuring one or more parameters for use by the UE 104 in communicating with the base station 102. For example, the UAI component 252 may transmit the UAI as part of establishing a connection with the base station 102 (e.g., in a random access channel (RACH) signal, in another signal (once communication with the base station 102 is established), etc.). For example, the UAI may be sent in a signal configured for UAI notification.

[0069] In an example, the UAI may include UEAssistanceInformation as defined and described in the 3rd Generation Partnership Project (3GPP) Technical Specification (TS) 36.331, Section 5.6.10. For example, the UAI may include power saving preferences of the UE 104 (such as the number of antennas supported by the UE 104), one or more discontinuous reception (DRX) parameters (such as supported or desired DRX cycle lengths), one or more control channels (e.g., physical downlink control channel (PDCCH)) monitoring parameters, semi-persistent scheduling (SPS) assistance information, maximum shared channel (e.g., physical downlink shared channel (PDSCH) and / or physical uplink shared channel (PUSCH)) bandwidth configuration preferences, overheat assistance information, link delay budget reports, etc. The base station 102 may use the UAI to configure resources on which the UE 104 may receive signals from the base station 102, resources on which the UE 104 may transmit signals to the base station 102, DRX scheduling parameters, etc.

[0070] As previously described, the base station 102 may not be obligated to adjust the communication parameters to the recommended values ​​indicated in the UAI message and / or may not be obligated to respond to the UAI message transmitted by the UE with an auxiliary response signal indicating the communication parameters modified based on the UAI. In the event that the base station 102 does not respond, this may lead to undesirable consequences at the UE 104, such as battery life exhaustion (e.g., supporting more demanding communication parameters when the battery life at the UE 104 is below a threshold). In this regard, for example, in the event that the base station 102 does not respond to the received UAI with an auxiliary response signal, it may be beneficial for the UE 104 to take certain actions to encourage the base station 102 (or the underlying network) to modify the communication parameters based on the UAI so that the UE 104 does not experience an undesirable situation.

[0071] In the method 400, at block 404, it may be detected that an auxiliary response signal to the UAI is not received from the base station within a threshold time period. In one aspect, the UAI component 252 (e.g., in combination with the processor(s) 212, the memory 216, the transceiver 202, the communication component 242, etc.) may detect that an auxiliary response signal to the UAI is not received from the base station within a threshold time period. For example, the auxiliary response signal may include a signal that may indicate one or more parameters to be adjusted based on the UAI. For example, the auxiliary response signal may include a signal received from the base station 102 as a RACH response message (or part of a RACH response message) (e.g., in response to the UAI transmitted in the RACH response message) or in another message (e.g., on a control channel) when communication is established with the UE 104. The auxiliary response signal may include an indication of adjusting one or more communication parameters based on the received UAI, wherein the indication may include an indication of adjusting the one or more communication parameters (e.g., a binary value or other indication of the adjustment), which may include a value for each of the one or more communication parameters or a value representing all of the one or more communication parameters. In another example, the indication may include a list of adjusted communication parameter(s), associated adjustment values, etc. However, in the event that the signal is detected not to be received, this may cause the UE 104 to downgrade feedback, as further described herein.

[0072] For example, detecting that the auxiliary response signal is not received may include the UAI component 252 determining that a time period (e.g., starting from transmitting the UAI) expires before the auxiliary response signal is received. During the time period, other signals may or may not be received from the base station 102, but the UE 104 may downgrade feedback as described herein until the auxiliary response signal is received. In another example, detecting that the auxiliary response signal is not received may include, for example, the UAI component 252 determining that another signal that is not the auxiliary response signal is received before the auxiliary response signal (e.g., a signal that does not include an associated communication parameter adjustment indication (such as a different control signal or data signal)). In this example, the UE 104 may similarly downgrade feedback as described herein until the auxiliary response signal is received.

[0073] In method 400, at block 406, feedback to be communicated to the base station may be degraded based on detecting that the auxiliary response signal is not received within a threshold time period. In one aspect, feedback degrading component 254 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may degrade feedback to be communicated to the base station based on detecting that the auxiliary response signal is not received within a threshold time period. For example, feedback degrading component 254 may degrade the feedback by refraining from transmitting the feedback, transmitting a degraded value for the feedback, etc., and may do so until an auxiliary response signal is received, until a certain number of retransmissions have occurred at base station 102, etc. As described, in one example, the degraded feedback may be an indication to base station 102 to adjust communication parameters of UE 104 based on the UAI and to send a corresponding auxiliary response signal.

[0074] In one example, feedback degrading component 254 can transmit degraded feedback based on UAI component 252 determining that a threshold time period has passed (e.g., based on detecting expiration of a timer set to a threshold time period from when the UAI was transmitted). In another example, feedback degrading component 254 can also transmit degraded feedback based on additional detections (such as detecting that a received signal is not an auxiliary response signal, as further described herein), as further described herein.

[0075] In one example, in the method 400, optionally at block 408, a different signal that does not include the one or more parameters may be detected after a threshold time period and without first receiving an auxiliary response signal. In one aspect, the UAI component 252 (e.g., in combination with the processor(s) 212, the memory 216, the transceiver 202, the communication component 242, etc.) may detect that a different signal (e.g., a signal that is not an auxiliary response signal) is received after a threshold time period and without first receiving an auxiliary response signal. In an example, the signal may include a PDSCH or may otherwise not include parameters related to the transmitted UAI, such as to indicate that the base station 102 did not receive and / or did not process the UAI transmitted by the UE 104. In this or other situations, the feedback demotion component 254 may transmit degraded feedback for the different signal, as further described herein.

[0076] In this example, when the feedback is downgraded at block 408, optionally at block 410, the feedback transmitted in response to the different signal may be downgraded. In an aspect, feedback downgrading component 254 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may downgrade the feedback transmitted in response to the different signal. Thus, in some examples, feedback downgrading component 254 may downgrade the HARQ feedback transmitted for the signal actually received from base station 102, or in other examples, may transmit the degraded feedback without receiving other signals from base station 102, as further described herein.

[0077] In one particular example, when the feedback is downgraded at block 406, optionally at block 412, transmitting HARQ feedback may be refrained. In one aspect, feedback downgrading component 254 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may refrain from transmitting HARQ feedback. For example, based on detecting that the secondary response signal is not received from base station 102, feedback downgrading component 254 may refrain from transmitting HARQ feedback for at least a period of time. In one example, UAI component 252 may determine that the secondary response signal is not received within a threshold period of time from sending the UAI, after which the feedback downgrading component 254 may refrain from transmitting HARQ feedback for other signals (e.g., different signals detected at block 408) that may be received from base station 102 until after the secondary response signal is received from base station 102. In another example, feedback degradation component 254 can refrain from transmitting HARQ feedback for other signals receivable from base station 102 until base station 102 has sent a certain number of retransmissions of the other signal (e.g., a maximum number of retransmissions before discarding the other signal).

[0078] exist Figure 5An example of an example of a system 500 for refraining from transmitting HARQ feedback upon determining that a secondary response signal was not received prior to receiving other signals that were not secondary response signals is shown in FIG. The system 500 includes a UE 104 in communication with a gNB 102. The UE 104 may send a UAI 502 to the gNB 102, which may include sending on a control channel (e.g., a physical uplink control channel (PUCCH)), a data channel (e.g., a physical uplink shared channel (PUSCH)), etc. The gNB 102 may receive the UAI 502, but may not be obligated to modify communication parameters based on the UAI, as described. In the depicted example, gNB 102 sends another signal 504 that is not a secondary response signal to UE 104 (e.g., without first transmitting a secondary response signal), where the other signal may be transmitted on a control channel (e.g., a physical downlink control channel (PDCCH)) including downlink control information (DCI) for a downlink shared channel (e.g., a physical downlink shared channel (PDSCH)) with a PUCCH. gNB 102 may also begin transmitting a data signal 506 (e.g., a PDSCH signal) to UE 104.

[0079] In an example, the UE 104 may determine that the signal 504 / 506 is not an auxiliary response signal and may refrain from transmitting HARQ feedback on the PUCCH (e.g., HARQ feedback for PDCCH and / or PDSCH transmissions received at 504 and / or 506) at 508. In an example, the UE 104 may set a parameter modification timer 510 based on transmitting the UAI, which may allow a time period for receiving the auxiliary response signal. In this example, determining to refrain from transmitting HARQ feedback at 508 may be based on the parameter modification timer 510. In an example, determining to refrain from transmitting HARQ feedback 508 may be based on determining that the parameter modification timer 510 has expired. Therefore, in this example, the UE 104 may also receive a PDCCH signal 512 with a DCI for a PDSCH with a PUCCH and a PDSCH data signal 514, and may accordingly refrain from transmitting HARQ feedback for these additional signals 512 / 514 at 516 (e.g., based on the expiration of the parameter modification timer 510). In another example, the UE 104 can refrain from transmitting HARQ feedback based on detecting the other signals 504 / 506 until the parameter modification timer 510 (or a different timer) expires.

[0080] In any case, for example, gNB 102 may determine at 518 that parameter modification may be required, which may be based on the M transmissions of signals 504 / 506, 512 / 514 by gNB 102 without receiving feedback from UE 104 due to the UE 104 having a degraded feedback process. In this example, gNB 102 may transmit an auxiliary response signal 520 as a PDCCH (with DCI for PDSCH, UAI-based parameter configuration with an associated PUCCH grant). Based on receiving the auxiliary response signal 520, UE 104 may transmit a normal (e.g., non-degraded) feedback signal 522 (e.g., HARQ acknowledgment (ACK)) to gNB 102.

[0081] In Figure 5 it, for example, may represent a scenario where the UE urgently needs resources (e.g., power). In this example, if after a certain duration and the UE does not receive a modified configuration (e.g., an auxiliary response signal), the UE chooses not to send any feedback to the network, even if there are pending UE measurement reports (e.g., CSI-RS reports) or HARQ ACK / NACK feedback. Figure 5 illustrates how the UE does not transmit HARQ ACK / NACK for a certain number of control and data transmissions. The UE may also stop receiving / decoding data packets during this period to save power. Additionally, the UE may also only stop monitoring control packets, or may even reduce control channel monitoring at a modified periodicity. Based on observing these actions from the UE, the gNB may decide to send modified parameters after a certain number (or a maximum number) of transmissions without any HARQ-ACK.NACK feedback. After that, assuming correct detection and "good" channel conditions, the UE may respond with a valid ACK.

[0082] In a specific example, when downgrading feedback at block 406, optionally at block 414, NACK feedback may be transmitted. In one aspect, a feedback downgrading component 254 (e.g., in combination with (one or more) processors 212, memory 216, transceiver 202, communication component 242, etc.) may transmit NACK feedback. For example, based on detecting another signal received from the base station 102 in addition to the assistance response signal, the feedback downgrading component 254 may transmit NACK feedback for the other signal, even though the signal may have been correctly received and / or decoded by the UE 104 (e.g., such that the UE 104 would otherwise indicate an ACK for the signal). In one example, the UAI component 252 may determine that a signal received after transmitting the UAI (or a signal received after the expiration of a timer associated with transmitting the UAI) is not an assistance response signal. In response to this determination, for example, the feedback downgrading component 254 may transmit a NACK as feedback for other signals that may be received from the base station 102 (e.g., a different signal detected at block 408), until an assistance response signal is received from the base station 102, or until the base station 102 has transmitted a certain number of retransmissions of the other signal (e.g., the maximum number of retransmissions before discarding the other signal).

[0083] In Figure 6 FIG. shows an example of a system 600 illustrating an example for transmitting HARQ NACK feedback in the case where it is determined that an assistance response signal has not been received before receiving other signals that are not assistance response signals. The system 600 includes a UE 104 that communicates with a gNB 102. The UE 104 may send a UAI 602 to the gNB 102, which may include transmitting on a control channel (e.g., PUCCH), a data channel (e.g., PUSCH), etc. The gNB 102 may receive the UAI 602, but is not obligated to modify communication parameters based on the UAI, as described. In the depicted example, the gNB 102 sends another signal 604 to the UE 104 that is not an assistance response signal, where the other signal may be transmitted on a control channel (e.g., PDCCH) including a DCI for a downlink shared channel (e.g., PDSCH) having a PUCCH. The gNB 102 may also start transmitting a data signal 606 (e.g., a PDSCH signal) to the UE 104.

[0084] In one example, the UE 104 may determine that the signal 604 / 606 is not a secondary response signal and may transmit NACK feedback at 608 (e.g., on the PUCCH). In one example, the UE 104 may set a parameter modification timer 610 based on transmitting the UAI, which may allow a time period for receiving the secondary response signal. In this example, determining to transmit HARQ NACK feedback at 608 may be based on the parameter modification timer 610. In one example, determining to transmit HARQ NACK feedback 608 may be based on determining that the parameter modification timer 610 has expired. Therefore, in this example, the UE 104 may also receive a PDCCH signal 612 with a DCI for a PDSCH with a PUCCH and a PDSCH data signal 614, and may transmit HARQ NACK feedback for these additional signals 612 / 614 accordingly at 616 (e.g., based on the expiration of the parameter modification timer 610). In another example, the UE 104 can transmit HARQ NACK feedback based on detecting the other signals 604 / 606 until the parameter modification timer 610 (or a different timer) expires.

[0085] In any case, for example, gNB 102 may determine at 618 that parameter modification may be needed, which may be based on gNB 102 transmitting M transmissions of signals 604 / 606, 612 / 614 and receiving HARQ NACK feedback for a threshold number of signals from UE 104 because UE 104 has degraded the feedback process. In this example, gNB 102 may transmit a secondary response signal 620 as a PDCCH (with a DCI for PDSCH, with a UAI-based parameter configuration with an accompanying PUCCH grant). Based on receiving the secondary response signal 620, UE 104 may transmit a normal (e.g., non-degraded) feedback signal 622 (e.g., a HARQ acknowledgment (ACK)) to gNB 102.

[0086] exist Figure 6 In, for example, instead of no HARQ-NACK feedback (e.g., as in Figure 5 In the case of a packet with multiple NACKs, the UE may choose to send NACKs for all data transmissions until the maximum number of retransmissions of the packet is reached. Receiving multiple NACKs from the UE may trigger the gNB to modify parameters according to the recommended UAI, such as Figure 6 As shown in . The gNB may be triggered if the payload size is small and the channel conditions are good and therefore no NACK from the UE is expected. The UE may then respond with a valid HARQ-ACK after receiving the modified parameters.

[0087] In another example, when downgrading feedback at block 406, optionally at block 416, other signals with device information may be transmitted. In one aspect, the feedback downgrading component 254 (e.g., in combination with the processor(s) 212, the memory 216, the transceiver 202, the communication component 242, etc.) may transmit other signals with device information. For example, based on detecting that another signal other than the auxiliary response signal is received from the base station 102, the feedback downgrading component 254 may transmit other signals with device information (e.g., together with NACK feedback for the other signal, after transmitting a certain number of NACK feedbacks without receiving the auxiliary response signal). In one example, the other signals may include a sounding reference signal (SRS), a scheduling request (SR), additional UAI signals, a power status signal, etc. For example, transmitting such signals may prevent an out-of-sync event from being triggered by the network (e.g., as in the case where the UE 104 sends a certain number of consecutive NACKs to the base station 102 in block 414). In one example, the feedback degradation component 254 can transmit the signal with the device information after or based on detecting that a threshold time period for receiving an auxiliary response signal has expired, or based on detecting that a different signal (e.g., the different signal detected at block 408) is received before receiving the auxiliary response signal, etc.

[0088] exist Figure 7 An example of an example of a system 700 for transmitting an additional signal with device information in the event that a secondary response signal is determined not to have been received prior to receiving the additional signal that is not a secondary response signal is shown in FIG. The system 700 includes a UE 104 in communication with a gNB 102. The UE 104 may send a UAI 702 to the gNB 102, which may include sending on a control channel (e.g., PUCCH), a data channel (e.g., PUSCH), etc. The gNB 102 may receive the UAI 702, but may not be obligated to modify communication parameters based on the UAI, as described. In the depicted example, the gNB 102 sends another signal 704 that is not a secondary response signal to the UE 104, where the other signal may be transmitted on a control channel (e.g., PDCCH) including DCI for a downlink shared channel (e.g., PDSCH) with the PUCCH. The gNB 102 may also begin transmitting a data signal 706 (e.g., a PDSCH signal) to the UE 104.

[0089] In one example, the UE 104 may determine that the signal 704 / 706 is not a secondary response signal and may transmit NACK feedback at 708 (e.g., on the PUCCH). In one example, the UE 104 may set a parameter modification timer 710 based on transmitting the UAI, which may allow a time period for receiving the secondary response signal. In this example, determining to transmit HARQ NACK feedback at 708 may be based on the parameter modification timer 710. In one example, determining to transmit HARQ NACK feedback 708 may be based on determining that the parameter modification timer 710 has expired. Therefore, in this example, the UE 104 may also receive the PDCCH signal 612 with DCI for the PDSCH with the PUCCH and the PDSCH data signal 714, and may transmit HARQ NACK feedback for these additional signals 712 / 714 accordingly at 716 (e.g., based on the expiration of the parameter modification timer 710). Additionally, for example, UE 104 may transmit (e.g., periodically based on a configured time period for the signal type or at otherwise determined time instances) other device information signal(s) (e.g., SRS, SR, UAI, power status signals, etc.), which may allow avoidance of an out-of-sync state that would otherwise result from transmitting a certain number of NACKs.

[0090] In any case, for example, gNB 102 may determine at 718 that parameter modification may be required, which may be based on gNB 102 transmitting M transmissions of signals 704 / 706, 712 / 714 and receiving HARQ NACK feedback from UE 104 for a threshold number of signals due to UE 104 having degraded feedback procedures, and / or may be based on other device information signals. In this example, gNB 102 may transmit a secondary response signal 720 as a PDCCH (with a DCI for PDSCH, with a UAI-based parameter configuration with an accompanying PUCCH grant). Based on receiving the secondary response signal 720, UE 104 may transmit a normal (e.g., non-degraded) feedback signal 722 (e.g., a HARQ acknowledgment (ACK)) to gNB 102.

[0091] exist Figure 7 In, for example, in addition to the UE sending a NACK for the data packet (e.g., as in Figure 6In the uplink, after some transmission N of the packet, the UE may send some information notifying SRS, SR, UAI, power status signal. This signal may prevent "out of sync" from being triggered. This signal may be used to send UAI retransmissions and / or otherwise remind the gNB of the previously transmitted UAI. After receiving such a signal and a NACK for the previously transmitted PDSCH, the gNB may respond by modifying the parameters recommended in the UAI. Note that there may be a situation where there is no uplink grant and the UE may send a RACH to access the network to trigger the modification of the parameters by the gNB.

[0092] In another example, when transmitting other signals at block 416, the communication component 242 can transmit a RACH request to the base station 102, which can be based on not receiving a secondary response signal within a period of time (e.g., before the expiration of the parameter modification timer described above). For example, the RACH request can allow the base station 102 to determine that a UAI configuration is to be obtained after one or more RACH transmissions by the UE, and the base station 102 can obtain the previously transmitted UAI accordingly. In this regard, the base station 102 can send a secondary response signal to the UE 104 based on applying the UAI as part of the RACH process, and the UE 104 can receive the secondary response signal, for example, as described below with reference to block 422.

[0093] In one particular example, when the feedback is downgraded at block 406, optionally at block 418, a CQI report may be refrained from being transmitted, or a CQI report having a downgraded CQI value may be transmitted at block 420. In an aspect, feedback degrading component 254 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may refrain from transmitting a CQI report, or may transmit a CQI report having a downgraded value. For example, based on detecting that an auxiliary response signal is not received from base station 102, feedback degrading component 254 may refrain from transmitting a CQI report, or may transmit a CQI report having a downgraded CQI value (e.g., a nominal CQI value, a CQI value less than a CQI value measured for a channel state information (CSI) reference signal (RS), a value configured to indicate that an auxiliary response signal is not received, etc.) for at least a period of time. In one example, UAI component 252 can determine that the secondary response signal is not received within a threshold time period from sending the UAI, after which feedback degrading component 254 can refrain from transmitting the CQI report or can transmit a degraded CQI report until after the secondary response signal is received from base station 102. In another example, UAI component 252 can determine that a different signal (in addition to the secondary response signal) is received, and can refrain from transmitting the CQI report or can transmit a degraded CQI report based on receiving the different signal.

[0094] exist Figure 8 An example of an example of a system 800 for refraining from transmitting a CQI report or for transmitting a downgraded CQI report when it is determined that a secondary response signal is not received from a base station 102 before a scheduled CQI report is to be transmitted is shown in FIG. The system 800 includes a UE 104 in communication with a gNB 102. The gNB 102 may send a CSI-RS 802 to the UE 104 for use in generating a CQI report. The UE 104 may send a UAI 804 to the gNB 102, which may include sending on a control channel (e.g., PUCCH), a data channel (e.g., PUSCH), etc. The gNB 102 may receive the UAI 804, but may not be obligated to modify communication parameters based on the UAI, as described. In the depicted example, the UE may decide at 806 not to send CQI or send a downgraded CQI report to the gNB 102, and may do so at 808, which may be based on determining that the secondary response signal was not received prior to the CQI reporting opportunity based on the CSI-RS 802. Additionally, in an example, the UE 104 may send other device information signals (e.g., SRS, SR, UAI, power status signals, etc.) to the gNB 102 at 808 to prevent an out-of-sync state that may otherwise be caused by not sending a CQI report or a low CQI report in a reporting opportunity.

[0095] In any case, for example, after not receiving a CQI report or receiving a certain number of degraded CQI reports, the gNB 102 may decide at 812 that parameter modification may be needed. In this example, the gNB 102 may transmit a secondary response signal 814 as a PDCCH (with a DCI for the PDSCH, with a UAI-based parameter configuration with an accompanying PUCCH grant). In addition, the gNB 102 may send another CSI-RS 816 to the UE 104. Based on receiving the secondary response signal 814 and the CSI-RS 816, the UE 104 may transmit a normal (e.g., non-degraded) CQI report 818 to the gNB 102.

[0096] exist Figure 8In the example, it can be assumed that the gNB has configured CQI reporting based on the previously transmitted CSI-RS. However, since the UE did not receive a response to the UAI after a period of time (e.g., defined by a parameter modification timer), the UE does not send CQI to the gNB or sends a downgraded CQI. In the absence of CQI, the gNB may not be able to schedule any PDSCH to the UE. In the case of downgraded CQI, the gNB can only limit DL data to the UE. In this example, the UE may also send some information on the uplink to notify SRS, SR, UAI, power status signal to prevent "out of sync" from being triggered. This signal can be used to send UAI retransmissions and / or otherwise remind the gNB of the previously transmitted UAI.

[0097] exist Figure 5-8 In the example of , UE 104 may ultimately receive an auxiliary response signal from base station 102 based on downgrading feedback using one or more of the above processes. In method 400, optionally at block 422, an auxiliary response signal may be received from a base station. In one aspect, UAI component 252 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may receive an auxiliary response signal from a base station (e.g., after downgrading feedback). As described, the auxiliary response signal may include an indication that one or more parameters are adjusted (or may be adjusted if the parameters are configured by UE 104), an indication of one or more parameters to be adjusted as part of communicating with base station 102, one or more values ​​for adjusting the one or more parameters, etc., which may be based on UAI.

[0098] In method 400, optionally at block 424, one or more communication parameters from the auxiliary response signal may be applied. In one aspect, UAI component 252 (e.g., in combination with processor(s) 212, memory 216, transceiver 202, communication component 242, etc.) may apply one or more parameters from the auxiliary response signal. As described, this may include adjusting the values ​​of the one or more parameters described above, such as the number of antennas over which to communicate with base station 102 or other base stations, adjusting one or more DRX parameters, adjusting parameters for receiving PDCCH, etc. In addition, feedback degradation component 254 may suppress degradation feedback, at least until the next UAI is sent and the corresponding auxiliary response signal is not received.

[0099] In method 400, optionally at block 426, non-degraded feedback may be transmitted. In an aspect, communication component 242 (e.g., in conjunction with processor(s) 212, memory 216, transceiver 202, etc.) may transmit non-degraded feedback. In this regard, based on receiving the auxiliary response signal from the base station and / or based on modifying the associated communication parameters (or communicating based on the modified communication parameters), communication component 242 may return to using a normal non-degraded feedback process to transmit normal feedback (e.g., HARQ, CQI reporting, etc.) to base station 102, and may do so at least until another instance in which an auxiliary response signal is not received for the transmitted UAI.

[0100] Fig. 9 A flowchart illustrating an example of a method 900 for transmitting an auxiliary response signal in response to receiving UAI and / or degraded feedback. In one example, a base station 102 (e.g., which may include a gNB 180) may use Figure 1 and 3 One or more components described in the method may be used to perform the functions described in method 900.

[0101] In method 900, at block 902, a UAI may be received from a device to facilitate configuring the device with one or more parameters for communication. In one aspect, parameter configuration component 352 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, scheduling component 342, etc.) may receive a UAI from a device (e.g., UE 104) to facilitate configuring the device with one or more parameters for communication (e.g., configuring one or more parameters for use by the device) (e.g., with base station 102 and / or other base stations in a network). As described, for example, the one or more parameters may include the number of antennas, DRX parameters, PDCCH monitoring parameters, etc. as described. Further, as described, parameter configuration component 352 may receive the UAI, etc. as part of a RACH procedure in a control communication on an established control channel.

[0102] In method 900, at block 904, degraded feedback for a signal transmitted to a device that is not a response to a UAI may be detected. In one aspect, a feedback processing component 354 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, scheduling component 342, etc.) may detect degraded feedback for a signal transmitted to a device that is not a response to a UAI. In an example, the feedback processing component 354 may determine that the signal transmitted to the device is not a response to a UAI based on determining that the signal is not an auxiliary response signal or otherwise does not include a parameter indicating that the UAI is applied and / or does not include the one or more parameters and / or their values. For example, the feedback processing component 354 may have transmitted a data signal, CSI-RS, or other signal that is not an auxiliary response signal to the UE 104 to the device, and may receive degraded feedback (e.g., a degraded feedback value or no feedback, as described above) from the UE accordingly.

[0103] For example, upon detecting degraded feedback at block 904, optionally at block 906, one or more feedback opportunities for which feedback for the signal was not received may be detected. In one aspect, feedback processing component 354 (e.g., in combination with processor(s) 312, memory 316, transceiver 302, scheduling component 342, etc.) may detect one or more feedback opportunities for which feedback for the signal was not received. For example, scheduling component 342 may transmit another signal that is not an auxiliary response signal, and may retransmit the signal without receiving feedback from UE 104. However, after detecting one or more feedback opportunities without detecting HARQ feedback, feedback processing component 354 may determine that feedback is being degraded. This is described above with reference to Figure 5 Additional description is given.

[0104] For example, upon detecting degraded feedback at block 904, optionally at block 908, one or more feedback opportunities for which NACK feedback for the signal is received may be detected. In one aspect, the feedback processing component 354 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) may detect one or more feedback opportunities for which NACK feedback for the signal is received. For example, the scheduling component 342 may transmit another signal that is not a secondary response signal, and may retransmit the signal if NACK feedback is received from the UE 104. However, after detecting one or more feedback opportunities with HARQ NACK feedback, the feedback processing component 354 may determine that the feedback is being degraded. This is described above with reference to Figure 6 Additional description is given.

[0105] For example, upon detecting degraded feedback at block 904, optionally at block 910, a channel condition of a channel with the device reaching a threshold level can be detected. In one aspect, feedback processing component 354 (e.g., in conjunction with processor(s) 312, memory 316, transceiver 302, scheduling component 342, etc.) can detect that a channel condition of a channel with the device reaches a threshold level. For example, feedback processing component 354 can use this determination in conjunction with detecting certain feedback (e.g., in conjunction with detecting a feedback opportunity without feedback or detecting multiple NACK feedback) to determine that feedback is indeed degraded (e.g., in the case of good channel conditions), as described above.

[0106] For example, upon detecting degraded feedback at block 904, optionally at block 912, one or more CQI opportunities where no CQI report for the signal is received may be detected, or at block 914, one or more CQI opportunities where a CQI report with a degraded CQI value is received may be detected. In one aspect, the feedback processing component 354 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, the scheduling component 342, etc.) may detect one or more CQI opportunities where no CQI report for the signal is received, or may detect one or more CQI opportunities where a CQI report with a degraded CQI value is received. For example, the scheduling component 342 may transmit a CSI-RS and may detect that no CQI is received from the UE 104 in an associated reporting opportunity or that a degraded CQI is received from the UE 104. However, after detecting one or more CQI opportunities without detecting a CQI report or detecting a degraded CQI report, the feedback processing component 354 may determine that the feedback is being degraded. This is described above with reference to Figure 8 Additional description is given.

[0107] In the method 900, at block 916, an auxiliary response signal including one or more parameters based on the UAI may be transmitted based on the detection of the degraded feedback. In an aspect, the scheduling component 342 (e.g., in combination with the processor(s) 312, the memory 316, the transceiver 302, etc.) may transmit an auxiliary response signal including one or more parameters based on the UAI based on the detection of the degraded feedback. As described, for example, the one or more parameters may specify to the UE 104 the number of antennas for communicating with the base station 102, one or more DRX parameters, one or more PDCCH monitoring parameters, etc. In this regard, the base station 102 may be influenced or caused to modify the communication parameters for the UE 104 in view of the received UAI.

[0108] Fig.10 1 is a block diagram of a MIMO communication system 1000 including a base station 102 and a UE 104. The MIMO communication system 1000 may be explained with reference to Figure 1The base station 102 may be a base station 102. Figure 1 Examples of various aspects of base station 102 are described. Base station 102 may be equipped with antennas 1034 and 1035, and UE 104 may be equipped with antennas 1052 and 1053. In MIMO communication system 1000, base station 102 may be able to send data on multiple communication links simultaneously. Each communication link may be referred to as a "layer", and the "rank" of a communication link may indicate the number of layers used for communication. For example, in a 2x2 MIMO communication system where base station 102 transmits two "layers", the rank of the communication link between base station 102 and UE 104 is 2.

[0109] At the base station 102, a transmit (Tx) processor 1020 may receive data from a data source. The transmit processor 1020 may process the data. The transmit processor 1020 may also generate a control symbol or a reference symbol. The transmit MIMO processor 1030 may perform spatial processing (e.g., precoding) on ​​the data symbol, the control symbol, or the reference symbol, where applicable, and may provide an output symbol stream to transmit modulators / demodulators 1032 and 1033. Each modulator / demodulator 1032 to 1033 may process a respective output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator / demodulator 1032 to 1033 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a DL signal. In one example, the DL signals from modulators / demodulators 1032 and 1033 may be transmitted via antennas 1034 and 1035, respectively.

[0110] UE 104 may be a reference Figure 1-2 Examples of various aspects of the UE 104 described. At the UE 104, the UE antennas 1052 and 1053 can receive the DL signals from the base station 102 and can provide the received signals to the modulators / demodulators 1054 and 1055, respectively. Each modulator / demodulator 1054 to 1055 can condition (e.g., filter, amplify, downconvert, and digitize) the respective received signals to obtain input samples. Each modulator / demodulator 1054 to 1055 can further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. The MIMO detector 1056 can obtain the received symbols from the modulators / demodulators 1054 and 1055, perform MIMO detection on the received symbols where applicable, and provide detected symbols. The receive (Rx) processor 1058 may process (eg, demodulate, deinterleave, and decode) the detected symbols, provide decoded data for the UE 104 to a data output, and provide decoded control information to a processor 1080 or memory 1082 .

[0111] Processor 1080 may, in some cases, execute stored instructions to instantiate communication component 242 (eg, see Figure 1 and 2 ).

[0112] On the uplink (UL), at the UE 104, a transmit processor 1064 may receive and process data from a data source. The transmit processor 1064 may also generate reference symbols for a reference signal. The symbols from the transmit processor 1064 may be precoded by a transmit MIMO processor 1066, if applicable, further processed by modulators / demodulators 1054 and 1055 (e.g., for SC-FDMA, etc.), and transmitted to the base station 102 according to the communication parameters received from the base station 102. At the base station 102, the UL signals from the UE 104 may be received by antennas 1034 and 1035, processed by modulators / demodulators 1032 and 1033, detected by a MIMO detector 1036, if applicable, and further processed by a receive processor 1038. The receive processor 1038 may provide decoded data to a data output and to the processor 1040 or the memory 1042.

[0113] Processor 1040 may in some cases execute the stored instructions to instantiate scheduling component 342 (eg, see Figure 1 and 3 ).

[0114] The components of the UE 104 may be implemented individually or collectively using one or more application specific integrated circuits (ASICs) adapted to perform some or all applicable functions in hardware. Each of the modules mentioned may be a device for performing one or more functions related to the operation of the MIMO communication system 1000. Similarly, the components of the base station 102 may be implemented individually or collectively using one or more ASICs adapted to perform some or all applicable functions in hardware. Each of the components mentioned may be a device for performing one or more functions related to the operation of the MIMO communication system 1000.

[0115] The above detailed description set forth above in conjunction with the accompanying drawings describes examples and does not represent the only examples that can be implemented or fall within the scope of the claims. The term "example" when used in this description means "used as an example, instance, or illustration", and does not mean "better than" or "better than other examples". This detailed description includes specific details to provide an understanding of the described techniques. However, these techniques can be practiced without these specific details. In some instances, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0116] Information and signals may be represented using any of a variety of different techniques and technologies. For example, data, instructions, commands, information, signals, bits, symbols, and chips that may be mentioned throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or optical particles, computer executable codes or instructions stored on computer-readable media, or any combination thereof.

[0117] The various illustrative blocks and components described in conjunction with the disclosure herein may be implemented or executed with a specially programmed device, such as, but not limited to, a processor designed to perform the functions described herein, a digital signal processor (DSP), an ASIC, a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof. The specially programmed processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. The specially programmed processor may also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0118] The functions described herein may be implemented in hardware, software executed by a processor, firmware, or any combination thereof. If implemented in software executed by a processor, each function may be stored as one or more instructions or codes on a non-transient computer-readable medium or transmitted by it. Other examples and implementations fall within the scope and spirit of the present disclosure and the appended claims. For example, due to the nature of software, each of the above functions may be implemented using software, hardware, firmware, hard wiring, or any combination thereof executed by a specially programmed processor. The features that implement the functions may also be physically located in various locations, including being distributed so that the various parts of the functions are implemented at different physical locations. In addition, as used herein (including in the claims), the "or" used in the enumeration of items followed by "at least one of" indicates a disjunctive enumeration, so that, for example, the enumeration of "at least one of A, B, or C" represents A or B or C or AB or AC or BC or ABC (i.e., A and B and C).

[0119] Computer-readable media include both computer storage media and communication media, including any media that facilitates a computer program to be transferred from one place to another. Storage media can be any available media that can be accessed by a general or special-purpose computer. As an example and not limitation, computer-readable media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other magnetic storage devices, or any other media that can be used to carry or store the desired program code means in the form of instructions or data structures and can be accessed by a general or special-purpose computer or a general or special-purpose processor. Any connection is also properly referred to as computer-readable media. For example, if software is transmitted from a website, server, or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio, and microwaves, then the coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio, and microwaves are included in the definition of medium. Disk and disc as used herein include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk, and Blu-ray disc, wherein disk usually reproduces data magnetically, while disc reproduces data optically with laser. Combinations of the above media are also included in the scope of computer-readable media.

[0120] The previous description of the disclosure is provided to enable those skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the common principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. In addition, although the elements of the described aspects and / or embodiments may be described or claimed in the singular, the plural is also contemplated unless explicitly stated to be limited to the singular. In addition, all or part of any aspect and / or embodiment may be used in conjunction with all or part of any other aspect and / or embodiment, unless otherwise stated. Thus, the disclosure is not limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein.

[0121] In the following, an overview of further examples is provided:

[0122] 1. A method for wireless communication, comprising:

[0123] transmitting, by a device to a base station, assistance information to facilitate configuring one or more parameters for communicating with the base station;

[0124] detecting, by the device, that an assistance response signal including the one or more parameters based on the assistance information is not received from the base station within a threshold time period; and

[0125] Feedback to be communicated to the base station is downgraded, by the apparatus, based on detecting that the secondary response signal is not received within the threshold time period.

[0126] 2. A method as in Example 1, wherein detecting that the auxiliary response signal is not received further includes: detecting, by the device, that a different signal that does not include the one or more parameters is received after the threshold time period and without first receiving the auxiliary response signal, and wherein downgrading the feedback includes: downgrading the feedback for the different signal to be communicated to the base station.

[0127] 3. The method of any one of Examples 1 or 2, wherein downgrading the feedback comprises: refraining from transmitting the feedback in one or more feedback transmission opportunities.

[0128] 4. The method of example 3, wherein refraining from transmitting the feedback comprises refraining from transmitting the feedback at least until the auxiliary response signal is received or until a maximum number of retransmissions is reached.

[0129] 5. The method of any of Examples 3 or 4, further comprising: refraining from decoding data packets in the different signal based on detecting that the auxiliary response signal is not received.

[0130] 6. The method of example 5, wherein refraining from decoding the data packet is based on determining that the assistance information has not been received from the base station within the threshold time period.

[0131] 7. The method of any one of Examples 2 to 6, wherein downgrading the feedback comprises transmitting negative acknowledgement (NACK) feedback for the different signal.

[0132] 8. The method of example 7, wherein transmitting the NACK feedback comprises transmitting the NACK feedback at least until the secondary response signal is received or until a maximum number of retransmissions is reached.

[0133] 9. A method as in any one of Examples 2 to 8, wherein downgrading the feedback comprises transmitting one or more of a sounding reference signal (SRS), a scheduling request (SR), auxiliary information, or a power status signal after transmitting a threshold number of negative acknowledgement (NACK) feedback for the different signals.

[0134] 10. A method as in Example 7, wherein transmitting the NACK feedback includes: transmitting the NACK feedback and / or transmitting one or more of the SRS, the SR, the auxiliary information, or the power status signal, at least until the auxiliary response signal is received or until the maximum number of retransmissions is reached.

[0135] 11. The method of any one of Examples 1 to 10, wherein downgrading the feedback comprises refraining from transmitting a channel quality indicator (CQI) report configured by the base station at least until the secondary response signal is received.

[0136] 12. A method as described in any one of Examples 1 to 11, wherein downgrading the feedback includes: transmitting to the base station a CQI report based on a channel state information reference signal (CSI-RS) received from the base station and having a downgraded channel quality indicator (CQI) value, at least until the auxiliary response signal is received.

[0137] 13. The method of example 12, further comprising transmitting one or more of a sounding reference signal (SRS), a scheduling request (SR), the assistance information, or a power status signal after transmitting a certain number of degraded CQI reports.

[0138] 14. The method of any one of Examples 1 to 13, wherein the feedback is one of hybrid automatic repeat / request (HARQ) feedback for a received shared channel signal or a pilot signal with a channel state information (CSI) report.

[0139] 15. The method of any one of Examples 1 to 14, wherein the auxiliary information comprises one or more of a number of antennas, a discontinuous reception (DRX) parameter, or a control channel monitoring parameter.

[0140] 16. A method for wireless communication, comprising:

[0141] receiving, by a base station from a device, assistance information to facilitate configuring one or more parameters for communicating with the base station;

[0142] detecting, by the base station, degraded feedback for a signal transmitted to the device that does not include the one or more parameters based on the assistance information; and

[0143] An assistance response signal including one or more parameters based on the assistance information is transmitted to the device and based on detecting the degraded feedback.

[0144] 17. The method of example 16, wherein detecting the degraded feedback comprises detecting one or more feedback opportunities for which feedback for the signal was not received.

[0145] 18. The method of any of Examples 16 or 17, wherein detecting the degraded feedback comprises receiving negative acknowledgement (NACK) feedback for the signal in one or more feedback opportunities.

[0146] 19. The method of example 18, wherein detecting the degraded feedback further comprises detecting that a channel condition of a channel with the device reaches a threshold level.

[0147] 20. The method of any of Examples 16 to 19, wherein detecting the degraded feedback comprises detecting one or more channel quality indicator (CQI) reporting opportunities for which no CQI reports were received from the device.

[0148] 21. A method as in any of Examples 16 to 20, wherein detecting the degraded feedback includes receiving a channel quality indicator (CQI) report based on a channel state information reference signal (CSI-RS) transmitted by the base station and having a degraded CQI value in one or more channel quality indicator (CQI) reporting opportunities.

[0149] 22. A method as in any one of Examples 16 to 21, wherein the auxiliary information includes one or more of the number of antennas, discontinuous reception (DRX) parameters, or control channel monitoring parameters, and the method further includes modifying the one or more parameters based on the auxiliary information.

[0150] 23. An apparatus for wireless communication, comprising:

[0151] Transceiver;

[0152] a memory configured to store instructions; and

[0153] one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to:

[0154] transmitting assistance information to a base station to facilitate configuring one or more parameters for communicating with the base station;

[0155] detecting that an assistance response signal including the one or more parameters based on the assistance information is not received from the base station within a threshold time period; and

[0156] Feedback to be communicated to the base station is downgraded based on detecting that the secondary response signal is not received within the threshold time period.

[0157] 24. An apparatus as in Example 23, wherein the one or more processors are configured to detect that the auxiliary response signal has not been received, at least in part, by further detecting that a different signal that does not include the one or more parameters is received after the threshold time period and without first receiving the auxiliary response signal, and wherein the one or more processors are configured to downgrade feedback for the different signal to be communicated to the base station.

[0158] 25. The apparatus of example 24, wherein the at least one processor is configured to degrade the feedback at least in part by refraining from transmitting the feedback in one or more feedback transmission opportunities.

[0159] 26. The apparatus of any of Examples 24 to 25, wherein the at least one processor is configured to downgrade the feedback at least in part by transmitting a negative acknowledgement (NACK) feedback for another signal.

[0160] 27. An apparatus as in any of Examples 24 to 26, wherein the at least one processor is configured to degrade the feedback at least in part by transmitting one or more of a sounding reference signal (SRS), a scheduling request (SR), the auxiliary information, or a power status signal after transmitting a threshold number of negative acknowledgment (NACK) feedback for the other signal.

[0161] 28. An apparatus as in any of Examples 23 to 27, wherein the at least one processor is configured to degrade the feedback at least in part by refraining from transmitting a channel quality indicator (CQI) report configured by the base station at least until the auxiliary response signal is received.

[0162] 29. A method as in any of Examples 23 to 28, wherein the at least one processor is configured to downgrade the feedback at least in part by transmitting to the base station a channel quality indicator (CQI) report based on a channel state information reference signal (CSI-RS) received from the base station and having a downgraded CQI value until at least the auxiliary response signal is received.

[0163] 30. An apparatus for wireless communication, comprising:

[0164] Transceiver;

[0165] a memory configured to store instructions; and

[0166] one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to:

[0167] receiving assistance information from a device to facilitate configuring one or more parameters for communicating with the apparatus;

[0168] detecting degraded feedback for a signal transmitted to the device that does not include the one or more parameters based on the auxiliary information; and

[0169] An assistance response signal including one or more parameters based on the assistance information is transmitted to the device and based on detecting the degraded feedback.

Claims

1. A method for wireless communication, include: transmitting, by a device to a base station, assistance information to facilitate configuring one or more parameters for communicating with the base station; detecting, by the device, that an assistance response signal including the one or more parameters based on the assistance information is not received from the base station within a threshold time period; as well as Feedback to be communicated to the base station is downgraded, by the apparatus, based on detecting that the secondary response signal is not received within the threshold time period.

2. The method of claim 1 , wherein detecting that the auxiliary response signal was not received further comprises detecting, by the device, receipt of a different signal that does not include the one or more parameters after the threshold time period and without first receiving the auxiliary response signal, and wherein downgrading the feedback comprises downgrading the feedback for the different signal to be communicated to the base station. 3 . The method of claim 2 , wherein downgrading the feedback comprises refraining from transmitting the feedback in one or more feedback transmission opportunities.

4. The method of claim 3, wherein transmitting the feedback is suppressed include: Transmitting the feedback is refrained at least until the secondary response signal is received or until a maximum number of retransmissions is reached.

5. The method of claim 3, further comprising: include: Decoding of data packets in the different signal is refrained based on detecting that the auxiliary response signal is not received.

6. The method of claim 5, wherein refraining from decoding the data packet is based on determining that the assistance information has not been received from the base station within the threshold time period.

7. The method of claim 2, wherein downgrading the feedback comprises transmitting negative acknowledgement (NACK) feedback for the different signal.

8. The method of claim 7, wherein transmitting the NACK feedback include: The NACK feedback is transmitted at least until the secondary response signal is received or until a maximum number of retransmissions is reached.

9. The method of claim 2, wherein the feedback is downgraded include: One or more of a sounding reference signal SRS, a scheduling request SR, the auxiliary information, or a power status signal is transmitted after transmitting negative acknowledgement (NACK) feedback for the different signal a threshold number of times.

10. The method of claim 9, wherein transmitting the NACK feedback include: The NACK feedback is transmitted and / or the one or more of the SRS, the SR, the auxiliary information, or the power status signal is transmitted at least until the auxiliary response signal is received or until a maximum number of retransmissions is reached.

11. The method of claim 1, wherein the feedback is downgraded include: Transmission of a channel quality indicator (CQI) report configured by the base station is refrained at least until the secondary response signal is received.

12. The method of claim 1, wherein downgrading the feedback include: A CQI report based on a channel state information reference signal (CSI-RS) received from the base station and having a degraded channel quality indicator (CQI) value is transmitted to the base station at least until the auxiliary response signal is received.

13. The method of claim 12, further comprising: include: One or more of a sounding reference signal SRS, a scheduling request SR, the auxiliary information, or a power status signal is transmitted after transmitting a certain number of degraded CQI reports.

14. The method of claim 1, wherein the feedback is one of a hybrid automatic repeat / request (HARQ) feedback for a received shared channel signal or a pilot signal with a channel state information (CSI) report.

15. The method of claim 1, wherein the auxiliary information comprises one or more of the number of antennas, discontinuous reception (DRX) parameters, or control channel monitoring parameters.

16. A method for wireless communication, include: receiving, by a base station from a device, assistance information to facilitate configuring one or more parameters for communicating with the base station; detecting, by the base station, degraded feedback for a signal transmitted to the device that does not include the one or more parameters based on the assistance information; as well as An assistance response signal including one or more parameters based on the assistance information is transmitted to the device and based on detecting the degraded feedback.

17. The method of claim 16, wherein detecting the degraded feedback comprises detecting one or more feedback opportunities for which no feedback was received for the signal.

18. The method of claim 16, wherein detecting the degraded feedback comprises receiving negative acknowledgement (NACK) feedback for the signal in one or more feedback opportunities.

19. The method of claim 18, wherein detecting the degraded feedback further comprises detecting that a channel condition of a channel with the device reaches a threshold level.

20. The method of claim 16, wherein detecting the degraded feedback comprises detecting one or more channel quality indicator (CQI) reporting opportunities for which no CQI reports were received from the device.

21. The method of claim 16, wherein detecting the degraded feedback comprises receiving a channel quality indicator (CQI) report based on a channel state information reference signal (CSI-RS) transmitted by the base station and having a degraded CQI value in one or more channel quality indicator (CQI) reporting opportunities.

22. The method of claim 16, wherein the auxiliary information comprises one or more of a number of antennas, a discontinuous reception (DRX) parameter, or a control channel monitoring parameter, and the method further comprises modifying the one or more parameters based on the auxiliary information.

23. An apparatus for wireless communication, include: Transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to: transmitting assistance information to a base station to facilitate configuring one or more parameters for communicating with the base station; detecting that an assistance response signal including the one or more parameters based on the assistance information is not received from the base station within a threshold time period; as well as Feedback to be communicated to the base station is downgraded based on detecting that the secondary response signal is not received within the threshold time period.

24. The apparatus of claim 23, wherein the one or more processors are configured to detect that the auxiliary response signal was not received at least in part by further detecting that a different signal that does not include the one or more parameters is received after the threshold time period and without first receiving the auxiliary response signal, and wherein the one or more processors are configured to downgrade the feedback for the different signal to be communicated to the base station.

25. The apparatus of claim 24, wherein the one or more processors are configured to degrade the feedback at least in part by refraining from transmitting the feedback in one or more feedback transmission opportunities.

26. The apparatus of claim 24, wherein the one or more processors are configured to degrade the feedback at least in part by transmitting negative acknowledgement (NACK) feedback for the different signal.

27. The apparatus of claim 24, wherein the one or more processors are configured to degrade the feedback at least in part by transmitting one or more of a sounding reference signal (SRS), a scheduling request (SR), the auxiliary information, or a power status signal after transmitting negative acknowledgement (NACK) feedback for the different signal a threshold number of times.

28. The apparatus of claim 23, wherein the one or more processors are configured to degrade the feedback at least in part by refraining from transmitting a channel quality indicator (CQI) report configured by the base station at least until the auxiliary response signal is received.

29. An apparatus as described in claim 23, wherein the one or more processors are configured to downgrade the feedback at least in part by transmitting to the base station a CQI report based on a channel state information reference signal (CSI-RS) received from the base station and having a downgraded channel quality indicator (CQI) value at least until the auxiliary response signal is received.

30. An apparatus for wireless communication, include: Transceiver; a memory configured to store instructions; as well as one or more processors communicatively coupled to the transceiver and the memory, wherein the one or more processors are configured to: receiving assistance information from a device to facilitate configuring one or more parameters for communicating with the apparatus; detecting degraded feedback for a signal transmitted to the device that does not include the one or more parameters based on the auxiliary information; as well as An assistance response signal including one or more parameters based on the assistance information is transmitted to the device and based on detecting the degraded feedback.

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