Complexity reduction for slot format determination

Abstract

In summary, various aspects of the present disclosure relate to wireless communications. In some aspects, a user equipment (UE) determines that one or more downlink control information communications for dynamic time slot format determination are not supported, and determines the time slot format based at least in part on radio resource control signaling from a network. Numerous other aspects are provided.

Description

Technical Field

[0001]

[0011] Generally speaking, aspects of the present disclosure relate to wireless communications and to techniques and apparatus for reduced complexity in slot format determination. Background Art

[0002] Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasting. Typical wireless communication systems may employ multiple access technologies that can support communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, etc.). Examples of such multiple access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency division multiple access (FDMA) systems, orthogonal frequency division multiple access (OFDMA) systems, single carrier frequency division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and long term evolution (LTE). LTE / LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard released by the Third Generation Partnership Project (3GPP).

[0003] A wireless communication network may include multiple base stations (BSs) that can support communications for multiple user equipments (UEs). User equipments (UEs) may communicate with base stations (BSs) via downlinks and uplinks. A downlink (or forward link) refers to a communication link from a BS to a UE, while an uplink (or reverse link) refers to a communication link from a UE to a BS. As will be described in more detail herein, a BS may be referred to as a Node B, gNB, access point (AP), radio head, transmit receive point (TRP), new radio (NR) BS, 5G Node B, etc.

[0004] The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user devices to communicate at the city, country, region, and even global level. New Radio (NR) (which may also be referred to as 5G) is an enhancement set to the LTE mobile standard released by the Third Generation Partnership Project (3GPP). NR is designed to better integrate with other open standards by improving spectrum efficiency, reducing costs, improving services, utilizing new spectrum, and using orthogonal frequency division multiplexing (OFDM) (CP-OFDM) with cyclic prefix (CP) on the downlink (DL), using CP-OFDM and / or SC-FDM (e.g., also referred to as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), so as to better support mobile broadband Internet access, as well as support beamforming, multiple input multiple output (MIMO) antenna technology and carrier aggregation. However, as the demand for mobile broadband access continues to grow, there is a need for further improvements to LTE and NR technologies. Preferably, these improvements should be applicable to other multiple access technologies and telecommunication standards that employ these technologies. Summary of the invention

[0005] In some aspects, a method of wireless communication performed by a UE may include: determining that one or more downlink control information (DCI) communications for dynamic time slot format determination are not supported; and determining a time slot format based at least in part on radio resource control (RRC) signaling from a network and independently of the one or more DCI communications for dynamic time slot format determination.

[0006] In some aspects, a UE for wireless communication may include a memory and one or more processors operatively coupled to the memory. The memory and the one or more processors may be configured to: determine that one or more DCI communications for dynamic time slot format determination are not supported; and determine a time slot format based at least in part on RRC signaling from a network and independently of the one or more DCI communications for dynamic time slot format determination.

[0007] In some aspects, a non-transitory computer-readable medium may store one or more instructions for wireless communication. The one or more instructions, when executed by one or more processors of a UE, may cause the one or more processors to perform the following operations: determine that one or more DCI communications for dynamic time slot format determination are not supported; and determine a time slot format based at least in part on RRC signaling from a network and independently of the one or more DCI communications for dynamic time slot format determination.

[0008] In some aspects, an apparatus for wireless communications includes: a unit for determining that one or more DCI communications for dynamic time slot format determination are not supported; and a unit for determining a time slot format based at least in part on RRC signaling from a network and independently of the one or more DCI communications for dynamic time slot format determination.

[0009] In summary, aspects include methods, apparatus, systems, computer program products, non-transitory computer-readable media, user equipment, base stations, wireless communication devices, and / or processing systems as fully described herein with reference to and as illustrated by the accompanying drawings and description.

[0010] The foregoing has been fairly broadly summarized according to the features and technical advantages of the examples of the present disclosure, so that the following detailed description can be better understood. Additional features and advantages will be described below. The disclosed concepts and specific examples can be easily used as the basis for modifying or designing other structures for the same purpose of achieving the present disclosure. Such equivalent constructions do not depart from the scope of the appended claims. When considered in conjunction with the accompanying drawings, the characteristics of the concepts disclosed herein (both their organization and method of operation) and the associated advantages will be better understood according to the description below. Each of the figures in the accompanying drawings is provided for the purpose of illustration and description, and is not intended to be a definition of the limitations of the claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to fully understand the above-mentioned features of the present disclosure, a more specific description of the invention briefly summarized above can be obtained by referring to various aspects (some of which are shown in the accompanying drawings). However, it should be noted that the accompanying drawings only illustrate certain typical aspects of the present disclosure and are therefore not considered to limit the scope of the present disclosure, as the description may allow for other equally effective aspects. The same reference numerals in different drawings may identify the same or similar elements.

[0012] Figure 1 is a block diagram conceptually illustrating an example of a wireless communication network in accordance with various aspects of the present disclosure.

[0013] Figure 2 is a block diagram conceptually illustrating an example of a base station in a wireless communication network communicating with a UE according to various aspects of the present disclosure.

[0014] Figure 3A is a block diagram conceptually illustrating an example of a frame structure in a wireless communication network in accordance with various aspects of the present disclosure.

[0015] Figure 3B is a block diagram conceptually illustrating an example synchronization communication hierarchy in a wireless communication network in accordance with various aspects of the present disclosure.

[0016] Figure 4 is a block diagram conceptually illustrating a set of example slot formats for a normal cyclic prefix in accordance with various aspects of the present disclosure.

[0017] Figure 5A and 5B is a diagram illustrating one or more examples of complexity reduction for slot format determination in accordance with various aspects of the present disclosure.

[0018] Figure 6 is a block diagram conceptually illustrating an example of radio resource signaling for configuring a slot format in accordance with various aspects of the present disclosure.

[0019] Figure 7 is a diagram illustrating an example process performed, for example, by a user device, according to various aspects of the present disclosure. DETAILED DESCRIPTION

[0020] The following is a more complete description of various aspects of the present disclosure with reference to the accompanying drawings. However, the present disclosure can be embodied in many different forms and should not be construed as being limited to any specific structure or function presented throughout the present disclosure. More specifically, these aspects are provided so that the present disclosure will be thorough and complete, and the scope of the present disclosure will be fully conveyed to those skilled in the art. Based on the teachings herein, it should be understood by those skilled in the art that the scope of the present disclosure is intended to cover any aspect of the present disclosure disclosed herein, whether the aspect is implemented independently of any other aspect of the present disclosure or implemented in combination with any other aspect. For example, using any number of aspects set forth herein, a device can be implemented or a method can be implemented. In addition, the scope of the present disclosure is intended to cover such a device or method implemented using other structures, functions, or structures and functions other than the various aspects of the present disclosure set forth herein or different from the various aspects of the present disclosure set forth herein. It should be understood that any aspect of the present disclosure disclosed herein can be embodied by one or more elements of the claims.

[0021] Several aspects of telecommunication systems will now be presented with reference to various devices and techniques. These devices and techniques will be described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using hardware, software, or a combination thereof. Whether such elements are implemented as hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0022] It should be noted that although various aspects may be described herein using terms commonly associated with 3G and / or 4G wireless technologies, various aspects of the present disclosure may be applied to communication systems based on other generations, such as 5G and later (including NR technology).

[0023] Figure 1 1 is a diagram showing a wireless network 100 in which various aspects of the present disclosure may be implemented. The wireless network 100 may be an LTE network or some other wireless network (e.g., a 5G or NR network). The wireless network 100 may include a plurality of BSs 110 (shown as BS 110a, BS 110b, BS 110c, and BS 110d) and other network entities. A BS is an entity that communicates with a user equipment (UE) and may also be referred to as a base station, NR BS, Node B, gNB, 5G Node B (NB), access point, transmit receive point (TRP), etc. Each BS may provide communication coverage for a specific geographic area. In 3GPP, the term "cell" may refer to a coverage area of ​​a BS and / or a BS subsystem serving the coverage area, depending on the context in which the term is used.

[0024] A BS may provide communication coverage for a macro cell, a pico cell, a femto cell, and / or another type of cell. A macro cell may cover a relatively large geographic area (e.g., several kilometers in radius) and may allow unrestricted access by UEs with service subscription. A pico cell may cover a relatively small geographic area and may allow unrestricted access by UEs with service subscription. A femto cell may cover a relatively small geographic area (e.g., a residence) and may allow restricted access by UEs associated with the femto cell (e.g., UEs in a closed subscriber group (CSG)). A BS for a macro cell may be referred to as a macro BS. A BS for a pico cell may be referred to as a pico BS. A BS for a femto cell may be referred to as a femto BS or a home BS. In Figure 1 In the example shown in , BS 110a may be a macro BS for macro cell 102a, BS 110b may be a pico BS for pico cell 102b, and BS 110c may be a femto BS for femto cell 102c. A BS may support one or more (e.g., three) cells. The terms "eNB", "base station", "NR BS", "gNB", "TRP", "AP", "Node B", "5G NB", and "cell" may be used interchangeably herein.

[0025] In some aspects, the cells may not necessarily be stationary, and the geographic area of ​​the cells may move depending on the location of the mobile BS. In some aspects, the BSs may be interconnected with each other and / or with one or more other BSs or network nodes (not shown) in the wireless network 100 via various types of backhaul interfaces (e.g., direct physical connections, virtual networks, and / or similar interfaces using any suitable transport networks).

[0026] The wireless network 100 may also include a relay station. A relay station is an entity that can receive data transmissions from an upstream station (e.g., a BS or a UE) and send data transmissions to a downstream station (e.g., a UE or a BS). A relay station may also be a UE that is capable of relaying transmissions for other UEs. Figure 1 In the example shown in FIG. 1 , a relay station 110 d may communicate with a macro BS 110 a and a UE 120 d to facilitate communication between the BS 110 a and the UE 120 d. A relay station may also be referred to as a relay BS, a relay base station, a relay, or the like.

[0027] The wireless network 100 may be a heterogeneous network including different types of BSs (e.g., macro BSs, pico BSs, femto BSs, relay BSs, etc.). These different types of BSs may have different transmit power levels, different coverage areas, and different effects on interference in the wireless network 100. For example, a macro BS may have a high transmit power level (e.g., 5 to 40 watts), while a pico BS, a femto BS, and a relay BS may have a lower transmit power level (e.g., 0.1 to 2 watts).

[0028] A network controller 130 may be coupled to a set of BSs and may provide coordination and control for these BSs. The network controller 130 may communicate with the BSs via a backhaul. The BSs may also communicate with each other directly or indirectly, for example, via a wireless or wired backhaul.

[0029] UE 120 (e.g., 120a, 120b, 120c) can be dispersed throughout the wireless network 100, and each UE can be stationary or mobile. UE can also be referred to as an access terminal, terminal, mobile station, subscriber unit, station, etc. UE can be a cellular phone (e.g., a smart phone), a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless phone, a wireless local loop (WLL) station, a tablet device, a camera, a gaming device, a netbook, a smartbook, an ultrabook, a medical device or apparatus, a biometric sensor / device, a wearable device (smart watch, smart clothing, smart glasses, smart wristband, smart jewelry (e.g., smart ring, smart bracelet, etc.)), an entertainment device (e.g., a music or video device, or a satellite radio unit, etc.), a vehicle component or sensor, a smart meter / sensor, an industrial manufacturing device, a global positioning system device, or any other suitable device configured to communicate via a wireless or wired medium.

[0030] Some UEs may be considered as machine type communication (MTC) or evolved or enhanced machine type communication (eMTC) UEs. MTC and eMTC UEs include, for example, robots, drones, remote devices, sensors, meters, monitors, location tags, etc., which may communicate with a base station, another device (e.g., a remote device), or some other entity. A wireless node may provide a connection to or to a network (e.g., a wide area network such as the Internet or a cellular network) via, for example, a wired or wireless communication link. Some UEs may be considered as Internet of Things (IoT) devices, and / or may be implemented as NB-IoT (narrowband Internet of Things) devices. Some UEs may be considered as customer premises equipment (CPE). UE 120 may be included inside a housing that houses components of UE 120 (such as a processor component, a memory component, etc.).

[0031] Typically, any number of wireless networks can be deployed in a given geographic area. Each wireless network can support a specific radio access technology (RAT) and can operate on one or more frequencies. RAT can also be referred to as radio technology, air interface, etc. Frequency can also be referred to as carrier, channel, etc. Each frequency can support a single RAT in a given geographic area to avoid interference between wireless networks of different RATs. In some cases, NR or 5G RAT networks can be deployed.

[0032] In some aspects, two or more UEs 120 (e.g., shown as UE 120a and UE 120e) may communicate directly using one or more sidelink channels (e.g., without using base station 110 as an intermediary to communicate with each other). For example, UE 120 may communicate using peer-to-peer (P2P) communication, device-to-device (D2D) communication, vehicle-to-everything (V2X) protocols (e.g., which may include vehicle-to-vehicle (V2V) protocols, vehicle-to-infrastructure (V2I) protocols, etc.), mesh networks, etc. In such cases, UE 120 may perform scheduling operations, resource selection operations, and / or other operations described elsewhere herein as being performed by base station 110.

[0033] As noted above, Figure 1 is provided as an example. Other examples may differ from those described above. Figure 1 Examples described.

[0034] Figure 2 Base station 110 and UE 120 (which may be Figure 1 1. Block diagram of a design 200 of a base station in a base station and a UE in a UE. Base station 110 may be equipped with T antennas 234a through 234t, and UE 120 may be equipped with R antennas 252a through 252r, where in general, T≥1 and R≥1.

[0035] At the base station 110, the transmit processor 220 may receive data for one or more UEs from the data source 212, select one or more modulation and coding schemes (MCS) for each UE based at least in part on a channel quality indicator (CQI) received from the UE, process (e.g., encode and modulate) the data for the UE based at least in part on the MCS selected for each UE, and provide data symbols for all UEs. The transmit processor 220 may also process system information (e.g., for semi-static resource partitioning information (SRPI), etc.) and control information (e.g., CQI requests, grants, upper layer signaling, etc.), and provide overhead symbols and control symbols. The transmit processor 220 may also generate reference symbols for reference signals (e.g., cell-specific reference signals (CRS)) and synchronization signals (e.g., primary synchronization signals (PSS) and secondary synchronization signals (SSS)). The transmit (TX) multiple-input multiple-output (MIMO) processor 230 may perform spatial processing (e.g., precoding) on ​​data symbols, control symbols, overhead symbols, and / or reference symbols, if applicable, and may provide T output symbol streams to T modulators (MOD) 232a to 232t. Each modulator 232 may process a corresponding output symbol stream (e.g., for OFDM, etc.) to obtain an output sample stream. Each modulator 232 may further process (e.g., convert to analog, amplify, filter, and up-convert) the output sample stream to obtain a downlink signal. T downlink signals from modulators 232a to 232t may be transmitted via T antennas 234a to 234t, respectively. According to various aspects described in more detail below, a synchronization signal may be generated using position coding to transmit additional information.

[0036] At UE 120, antennas 252a to 252r may receive downlink signals from base station 110 and / or other base stations, and may provide received signals to demodulators (DEMODs) 254a to 254r, respectively. Each demodulator 254 may condition (e.g., filter, amplify, downconvert, and digitize) the received signal to obtain input samples. Each demodulator 254 may further process the input samples (e.g., for OFDM, etc.) to obtain received symbols. MIMO detector 256 may obtain received symbols from all R demodulators 254a to 254r, perform MIMO detection on the received symbols (if applicable), and provide detected symbols. Receive processor 258 may process (e.g., demodulate and decode) the detected symbols, provide decoded data for UE 120 to data sink 260, and provide decoded control information and system information to controller / processor 280. The channel processor may determine reference signal received power (RSRP), received signal strength indicator (RSSI), reference signal received quality (RSRQ), channel quality indicator (CQI), etc. In some aspects, one or more components of UE 120 may be included in a housing.

[0037] On the uplink, at the UE 120, a transmit processor 264 may receive and process data from a data source 262 and control information from a controller / processor 280 (e.g., for reports including RSRP, RSSI, RSRQ, CQI, etc.). The transmit processor 264 may also generate reference symbols for one or more reference signals. The symbols from the transmit processor 264 may be precoded by a TX MIMO processor 266 (if applicable), further processed by modulators 254a through 254r (e.g., for DFT-s-OFDM, CP-OFDM, etc.), and transmitted to the base station 110. At the base station 110, uplink signals from the UE 120 and other UEs may be received by the antenna 234, processed by the demodulator 232, detected by the MIMO detector 236 (if applicable), and further processed by the receive processor 238 to obtain decoded data and control information transmitted by the UE 120. The receive processor 238 may provide decoded data to a data sink 239 and provide decoded control information to a controller / processor 240. The base station 110 may include a communication unit 244 and communicate with the network controller 130 via the communication unit 244. The network controller 130 may include a communication unit 294, a controller / processor 290, and a memory 292.

[0038] The controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2Any other component in the base station 110 may perform one or more techniques associated with complexity reduction for time slot format determination, as described in more detail elsewhere herein. For example, the controller / processor 240 of the base station 110, the controller / processor 280 of the UE 120, and / or Figure 2 Any other component in may perform or direct e.g. Figure 7 The operations of process 700 and / or other processes as described herein. Memories 242 and 282 may store data and program codes for base station 110 and UE 120, respectively. In some aspects, memory 242 and / or memory 282 may include a non-transitory computer-readable medium storing one or more instructions for wireless communication. For example, one or more instructions, when executed by one or more processors of base station 110 and / or UE 120, may perform or direct, for example, Figure 7 The scheduler 246 may schedule UEs for data transmission on the downlink and / or uplink.

[0039] In some aspects, UE 120 may include: means for determining that one or more DCI communications for dynamic time slot format determination are not supported; means for determining a time slot format based at least in part on RRC signaling from a network and independently of one or more DCI communications for dynamic time slot format determination; etc. In some aspects, such means may include combining Figure 2 One or more components of UE 120 are depicted, such as controller / processor 280, transmit processor 264, TX MIMO processor 266, MOD 254, antenna 252, DEMOD 254, MIMO detector 256, receive processor 258, etc.

[0040] As noted above, Figure 2 is provided as an example. Other examples may differ from those described above. Figure 2 Examples described.

[0041] Figure 3A An example frame structure 300 for frequency division duplex (FDD) in a telecommunication system (e.g., NR) is shown. The transmission timeline for each of the downlink and uplink may be divided into units of radio frames (sometimes referred to as frames). Each radio frame may have a predetermined duration (e.g., 10 milliseconds (ms)) and may be divided into a set of Z (Z ≥ 1) subframes (e.g., with indices from 0 to Z-1). Each subframe may have a predetermined duration (e.g., 1 ms) and include a set of time slots (e.g., in Figure 3A Each subframe has 2 mtime slots, where m is the number scheme used for transmission, such as 0, 1, 2, 3, 4, etc.). Each time slot may include a set of L symbol periods. For example, each time slot may include fourteen symbol periods (e.g., Figure 3A ), seven symbol periods, or another number of symbol periods. In the case where a subframe includes two slots (e.g., when m=1), the subframe may include 2L symbol periods, where the 2L symbol periods in each subframe may be assigned indices from 0 to 2L-1. In some aspects, the scheduling unit for FDD may be frame-based, subframe-based, slot-based, symbol-based, etc.

[0042] Although some techniques are described herein in conjunction with frames, subframes, time slots, etc., these techniques may also be applied to other types of wireless communication structures, which may be referred to in 5G NR using terms other than "frames," "subframes," "time slots," etc. In some aspects, a wireless communication structure may refer to a periodic, time-delimited communication unit defined by a wireless communication standard and / or protocol. Additionally or alternatively, a wireless communication structure may be used in conjunction with a wireless communication standard and / or protocol. Figure 3A The configurations of the wireless communication structures are different from those shown in FIG.

[0043] In some telecommunications (e.g., NR), a base station may send synchronization signals. For example, a base station may send a primary synchronization signal (PSS), a secondary synchronization signal (SSS), etc. on the downlink for each cell supported by the base station. The PSS and SSS may be used by the UE for cell search and acquisition. For example, the PSS may be used by the UE to determine symbol timing, and the SSS may be used by the UE to determine a physical cell identifier and frame timing associated with the base station. The base station may also send a physical broadcast channel (PBCH). The PBCH may carry certain system information, such as system information that supports initial access by the UE.

[0044] In some aspects, a base station may send a PSS, SSS, and / or PBCH according to a synchronization communication level (e.g., a synchronization signal (SS) level) including multiple synchronization communications (e.g., SS blocks), as described below in conjunction with Figure 3B Described.

[0045] Figure 3B is a block diagram conceptually illustrating an example SS hierarchy, which is an example of a synchronous communication hierarchy. Figure 3B As shown in , the SS hierarchy may include an SS burst set, which may include multiple SS bursts (identified as SS burst 0 to SS burst B-1, where B is the maximum number of repetitions of the SS burst that can be sent by the base station). As further shown, each SS burst may include one or more SS blocks (identified as SS block 0 to SS block (b max_SS-1 ), where bmax_SS-1 is the maximum number of SS blocks that can be carried by an SS burst). In some aspects, different SS blocks may be beamformed in different ways. A wireless node may send a set of SS bursts periodically, such as every X milliseconds, such as Figure 3B In some aspects, the SS burst set may have a fixed or dynamic length. Figure 3B is shown as Y milliseconds.

[0046] Figure 3B The SS burst set shown in is an example of a synchronous communication set, and other synchronous communication sets can be used in conjunction with the techniques described herein. In addition, Figure 3B The SS blocks shown in are examples of synchronous communications, and other synchronous communications may be used in conjunction with the techniques described herein.

[0047] In some aspects, an SS block includes resources that carry PSS, SSS, PBCH, and / or other synchronization signals (e.g., a third synchronization signal (TSS)) and / or synchronization channels. In some aspects, multiple SS blocks are included in an SS burst, and the PSS, SSS, and / or PBCH may be the same between each SS block of the SS burst. In some aspects, a single SS block may be included in an SS burst. In some aspects, an SS block may be at least four symbol periods in length, with each symbol carrying one or more of the PSS (e.g., occupying one symbol), the SSS (e.g., occupying one symbol), and / or the PBCH (e.g., occupying two symbols).

[0048] In some aspects, such as Figure 3B As shown in , the symbols of the SS blocks are continuous. In some aspects, the symbols of the SS blocks are discontinuous. Similarly, in some aspects, one or more SS blocks of an SS burst may be sent in continuous radio resources (e.g., continuous symbol periods) during one or more time slots. Additionally or alternatively, one or more SS blocks of an SS burst may be sent in discontinuous radio resources.

[0049] In some aspects, an SS burst may have a burst period, whereby a base station may send an SS block of an SS burst according to the burst period. In other words, an SS block may repeat during each SS burst. In some aspects, an SS burst set may have a burst set period, whereby a base station may send an SS burst of an SS burst set according to a fixed burst set period. In other words, an SS burst may repeat during each SS burst set.

[0050] The BS may send system information (e.g., system information blocks (SIBs)) on a physical downlink shared channel (PDSCH) in certain slots. The base station may send control information / data on a physical downlink control channel (PDCCH) in C symbol periods of a slot, where B may be configurable for each slot. The base station may send traffic data and / or other data on the PDSCH in the remaining symbol periods of each slot.

[0051] As noted above, Figure 3A and 3B is provided as an example. Other examples may differ from those described above. Figure 3A and 3B Examples described.

[0052] Figure 4 is a block diagram conceptually illustrating a set of example slot formats for a normal cyclic prefix in accordance with various aspects of the present disclosure. In some aspects, the network may select a slot format for a UE and may indicate the selection via RRC signaling, one or more DCI communications, etc. Each symbol number in a slot may be identified for uplink (shown as "U"), downlink (shown as "D"), or flexible (shown as "F").

[0053] As noted above, Figure 4 is provided as an example. Other examples may differ from those described above. Figure 4 Examples described.

[0054] The UE may determine a slot format for a slot (e.g., using UL, DL, or flexible identification of symbols for the slot). The slot format may be based at least in part on an RRC configuration indicated in RRC signaling. The RRC configuration may provide one or more slot formats that apply to a set of slots.

[0055] In some networks, the slot format may also be based at least in part on one or more DCI communications. For example, the UE may receive a slot format indicator (SFI) DCI that is scrambled by a slot format indication radio network temporary identifier (SFI-RNTI) to indicate a slot format for one or more slots (e.g., a slot format for each of a plurality of slots starting from a slot during which the UE detects the SFI DCI). The UE may use the RRC configuration of the slot format and the SFI DCI of the slot format to jointly and dynamically determine the slot format for the slot.

[0056] In some networks, the UE may be required to be continuously configured to dynamically determine the timeslot format, including using DCI communications to identify one or more symbols as UL, DL, or flexible (when one or more symbols are identified as flexible in RRC signaling, when one or more symbols are identified as UL or DL ​​in RRC signaling, etc.).

[0057] Dynamic determination of the time slot format may be a complex process for the UE to implement and may consume computing resources of the UE. In addition, if the UE does not have sufficient computing resources to perform the dynamic determination of the time slot format (e.g., timely configuration of UE components based at least in part on the time slot format), attempting and / or failing to dynamically determine the time slot format may result in one or more communication errors, from which recovery may consume additional computing, communication, and / or network resources.

[0058] In some aspects described herein, a UE (e.g., UE 120) may determine that one or more DCI communications for dynamic time slot format determination are not supported. In some aspects, the UE may provide an indication to the network that the UE does not support one or more DCI communications for dynamic time slot format determination. The UE may determine the time slot format based at least in part on RRC signaling from the network. In some aspects, the UE may ignore and / or not receive one or more DCI communications for dynamic time slot determination. In this way, the UE may save computing resources that may otherwise be consumed by attempting to dynamically determine the time slot format (e.g., canceling one or more indications from RRC signaling for UL, DL, or flexible). In addition, the UE may save computing, communication, and / or network resources that may otherwise be consumed by recovering from communication errors that may be consumed based at least in part on the UE not having enough computing resources to perform dynamic determination of the time slot format.

[0059] Figure 5A and 5B is a diagram illustrating one or more examples 500 of complexity reduction for slot format determination in accordance with various aspects of the present disclosure. Figure 5A and 5B A UE (e.g., UE 120) is shown communicating with a base station (e.g., base station 110) to determine a time slot format. In some aspects, the UE and the base station may be included in a network (such as wireless network 100). In some aspects, the UE may communicate with the base station over a wireless access link, which may include a downlink and an uplink. In some aspects, the time slot format may be used for carriers in an unpaired spectrum.

[0060] As in Figure 5A, and as shown by reference numeral 510, the UE may determine a configuration of the UE. In some aspects, the configuration may be based at least in part on the capabilities of the UE. For example, the UE may be a low-complexity UE (e.g., a low-end UE, a UE with reduced capabilities, or an NR light UE) that may have insufficient processing and / or communication capabilities (e.g., based at least in part on components of the UE, an operating system of the UE, software executed by the UE, etc.). In some aspects, the configuration may be based at least in part on an operating mode of the UE. For example, the UE may operate in a power saving mode, a hot recovery mode, a limited communication mode, etc.

[0061] In some aspects, the configuration (e.g., operating mode) of the UE may be reconfigurable. For example, the UE may automatically reconfigure the configuration based at least in part on a changed condition (e.g., a power level meets a threshold, a temperature of the UE meets a threshold, a parameter associated with a wireless access link meets a threshold, etc.). In some aspects, the UE may receive input (e.g., from a user, a network, etc.) for changing the configuration of the UE.

[0062] As indicated by reference numeral 520, the UE may determine whether one or more DCI communications for dynamic slot format determination are supported. In some aspects, the UE may determine not to support one or more DCI communications for dynamic slot format determination based at least in part on, for example, a configuration of the UE.

[0063] In some aspects, one or more DCI communications may include an SFI-RNTI (e.g., a DCI format 2_0 communication scrambled by the SFI-RNTI). In some aspects, one or more DCI communications may include one or more of a DCI format 1_0 communication, a DCI format 1_1 communication, a DCI format 0_0 communication, a DCI format 0_1 ​​communication, or a DCI format 2_3 communication. These DCI communications may include an indication of UL or DL ​​for one or more symbols of an upcoming time slot that may have been configured using RRC signaling. For example, DCI format 1_0 communication and DCI format 1_1 communication are DL scheduled DCI communications, and DCI format 0_1 ​​communication is UL scheduled DCI communication, which can be used to trigger channel state information reference signal (CSI-RS) reception. In addition, DCI format 0_0 communication and DCI format 0_1 ​​communication are UL scheduled DCI, and DCI format 2_3 communication triggers sounding reference signal (SRS) transmission. In some aspects, a UL of a hybrid automatic repeat request acknowledgement (HARQ-ACK) may be scheduled for data received by the UE based at least in part on a scheduled DL via a DCI format 1_0 communication and / or a DCI format 1_1 communication.

[0064] In some aspects, the UE may determine that a set of DCI communications associated with scheduling and / or triggering transmission or reception during a particular symbol of a time slot is not supported. In some aspects, the set of DCI communications may include a subset of DCI communications, or may include all DCI communications that may be used for dynamic time slot format determination.

[0065] As indicated by reference numeral 530, the UE may provide an indication that the UE does not support one or more DCI communications for dynamic time slot format determination. In some aspects, the indication may include an explicit indication that the UE does not support one or more DCI communications for dynamic time slot format determination. For example, the indication may include an indication that the UE does not support one or more types of DCI communications (e.g., DCI formats) for dynamic time slot format determination and / or an indication that the UE does not support one or more types of DCI communications for dynamic time slot format determination.

[0066] In some aspects, the indication may include an indication of the capabilities of the UE and / or an operating mode of the UE. Based at least in part on the capabilities and / or operating mode of the UE, the network may identify one or more DCI communications for dynamic time slot format determination that are not supported by the UE. The network may determine not to send DCI communications that are not supported by the UE.

[0067] As in Figure 5B In and as shown by reference numeral 540, the UE may receive RRC signaling for a time slot format configuration. In some aspects, the RRC signaling may include a cell-specific time slot format configuration (e.g., tdd-UL-DL-ConfigurationCommon). The cell-specific time slot format configuration may indicate a time slot format for one or more time slots to a set of UEs having an established wireless access link for communication with a network in the cell. For example, a cell-specific time slot format configuration may configure multiple (e.g., 10 to 100) time slots based at least in part on a single RRC communication. In some aspects, the cell-specific time slot format configuration may identify one or more symbols within multiple time slots as flexible symbols that can be identified for UL or DL ​​or can remain as flexible symbols.

[0068] In some aspects, RRC signaling may include a UE-specific slot format configuration (e.g., tdd-UL-DL-ConfigurationDedicated). The UE-specific slot format configuration may identify at least one flexible symbol of one or more flexible symbols within a slot format for an uplink or downlink (e.g., as identified in a cell-specific slot format configuration). In some aspects, the UE-specific slot format configuration may include a slot format set and associated slot indexes to indicate one or more associated slots of a slot format in the slot format set to be applied. Figure 6 An example of determining a slot format according to RRC signaling for slot format configuration is shown in FIG. 4 and described below.

[0069] As shown by reference numeral 550, the UE may receive one or more DCI communications for dynamic time slot format determination. In some aspects, the UE may receive and / or apply any DCI communication for time slot format determination that the UE has determined to support. The UE may ignore and / or not receive any DCI communication that the UE has determined not to support.

[0070] As indicated by reference numeral 560, the UE may determine the slot format based at least in part on RRC signaling from the network (e.g., a cell-specific slot format configuration, a UE-specific slot format configuration, etc.). In some aspects, the UE may determine the slot format independently of any DCI communication for dynamic slot format determination that the UE has determined is not supported. The UE may configure one or more components of the UE based at least in part on the slot format.

[0071] In some aspects, RRC signaling may identify a symbol set for a downlink. The UE may determine a time slot format independently of indicating that one or more symbols in the symbol set will be configured for one or more DCI communications for an uplink. In other words, the UE may determine that one or more DCI communications that may indicate that one or more symbols in the symbol set will be configured for an uplink are not supported. For example, if the UE is configured by RRC signaling (e.g., as a layer higher than the DCI layer) to receive PDCCH communication, PDSCH communication, CSI-RS, etc. in a symbol set of a time slot, the UE may not support one or more DCI communications, such as DCI format 0_0 communication, DCI format 0_1 ​​communication, DCI format 1_0 communication, DCI format 1_1 communication, and / or DCI format 2_3 communication, which may indicate that a physical uplink shared channel (PUSCH) communication, a physical uplink control channel (PUCCH) communication, a physical random access channel (PRACH) communication, SRS, etc. are sent in a symbol set for DL. In other words, the UE may not support DCI communications that may indicate that the UE is to cancel identification of symbols used for DL ​​as identified in RRC signaling.

[0072] In some aspects, RRC signaling identifies a symbol set for uplink. The UE may determine the time slot format independently of indicating that one or more symbols in the symbol set will be configured for one or more DCI communications for downlink. In other words, the UE may determine that it does not support one or more DCI communications that may indicate that one or more symbols in the symbol set will be configured for downlink. For example, if the UE is configured by RRC signaling to send SRS, PUCCH communication, PUSCH communication, PRACH communication, etc. in a symbol set of a time slot, the UE may not support one or more DCI communications, such as DCI format 1_0 communication, DCI format 1_1 communication, DCI format 0_1 ​​communication, etc., which may indicate that CSI-RS, PDSCH communication, etc. are received in symbols in the symbol set for DL. In other words, the UE may not support DCI communications that may indicate that the UE will cancel the identification of symbols for UL as identified in RRC signaling.

[0073] In some aspects, the UE may determine the slot format independently of one or more DCI communications based at least in part on receiving an indication for performing radio resource management (RRM) measurements during a symbol set associated with the slot format and one or more DCI communications for dynamic slot format determination indicating that one or more symbols in the symbol set will be configured for uplink (e.g., DCI format 0_0 communication, DCI format 0_1 ​​communication, DCI format 1_0 communication, DCI format 1_1 communication, DCI format 2_3 communication, etc.). In other words, the UE may not support DCI communications that may indicate that the UE will cancel the identification of symbols for performing RRM measurements (e.g., for receiving signals for measurement). In some aspects, the UE may receive an indication for performing RRM measurements via a synchronization signal / physical broadcast channel (SS / PBCH) block. In some aspects, the UE may receive an indication for performing RRM measurements via a CSI-RS. In some aspects, RRM may be associated with channel state information (CSI), CQI, RSRP, RSRQ, carrier RSSI, etc.

[0074] By determining that one or more DCI communications for dynamic time slot format determination are not supported, the UE can save computing resources that may be consumed by otherwise attempting to dynamically determine the time slot format. In addition, the UE can save computing, communication and / or network resources that may be consumed by otherwise recovering from communication errors caused by the UE not having sufficient computing resources to perform dynamic determination of the time slot format.

[0075] As noted above, Figure 5A and 5B is provided as one or more examples. Other examples may differ from Figure 5A and 5B Examples described.

[0076] Figure 6 is a block diagram conceptually illustrating an example 600 of radio resource signaling for configuring a slot format in accordance with various aspects of the present disclosure.

[0077] As indicated by reference numeral 610, the cell-specific slot format configuration from RRC signaling may identify a portion of a set of slots (e.g., symbols) as UL, DL, or flexible. In some aspects, the network may send the cell-specific slot format configuration to multiple cells, where the flexible portion can be identified for UL or DL ​​via another configuration communication (e.g., UE-specific slot format configuration from RRC signaling, DCI communication, etc.).

[0078] As shown in reference numeral 620, the UE-specific slot format configuration from the RRC signaling can identify a portion (e.g., symbol) of a time slot set as UL, DL, or flexible. In some aspects, the UE-specific slot format configuration can be configured to cover the identification of flexible symbols within the time slot set associated with the cell-specific slot format configuration. In other words, the UE-specific slot format configuration can be limited to cover the portion of the cell-specific slot format configuration that identifies the portion as UL or DL. In some aspects, the UE-specific slot format configuration may include a time slot format set and one or more indexes indicating which time slots of the cell-specific slot format configuration the time slot format set will be applied to. For example, the UE-specific slot format configuration may include a set of 3 time slots (as shown) and an index 3 indicating that the set of 3 time slots will be applied to time slots 3, 4, and 5 of the cell-specific slot format configuration.

[0079] As indicated by reference numeral 630, the UE may determine a slot format (e.g., including a cell-specific slot format configuration and a UE-specific slot format configuration) based at least in part on RRC signaling. As shown, the slot format may include one or more portions identified as flexible. In some aspects, the one or more portions identified as flexible may be identified for UL or DL ​​based at least in part on supported DCI communications.

[0080] In some aspects, one or more portions (e.g., symbols) identified as flexible may be used as time domain guard symbols for DL ​​to UL or UL to DL switching. In some aspects, the UE may receive SS / PBCH blocks, send PRACH preambles, receive PDCCH communications in a type 0 PDCCH search space set for SIB (e.g., SIB1) reception, receive PDCCH communications in a CORESET, and the like in symbols identified as flexible. In some aspects, the UE may send PDSCH communications based at least in part on DL semi-persistent scheduling (SPS) in symbols identified as flexible, send PUSCH communications based at least in part on a grant of a type 1 UL configuration, send PUSCH communications based at least in part on a grant of a type 2 UL configuration, and the like.

[0081] As noted above, Figure 6 is provided as an example. Other examples may differ from those described above. Figure 6 Examples described.

[0082] Figure 7 is a diagram illustrating an example process 700, performed, for example, by a UE, in accordance with various aspects of the present disclosure. Example process 700 is an example of operations in which a UE (eg, UE 120, etc.) performs complexity reduction for slot format determination.

[0083] like Figure 7 As shown, in some aspects, process 700 may include: determining that one or more DCI communications for dynamic time slot format determination are not supported (block 710). For example, the UE (e.g., using controller / processor 280, etc.) may determine that one or more DCI communications for dynamic time slot format determination are not supported, as described above.

[0084] like Figure 7 As further shown, in some aspects, process 700 may include determining a slot format based at least in part on RRC signaling from the network and independently of one or more DCI communications used for dynamic slot format determination (block 720). For example, the UE (e.g., using controller / processor 280, etc.) may determine a slot format based at least in part on RRC signaling from the network and independently of one or more DCI communications used for dynamic slot format determination, as described above.

[0085] Process 700 may include additional aspects, such as any single aspect or any combination of aspects described below and / or in conjunction with one or more other processes described elsewhere herein.

[0086] In a first aspect, one or more DCI communications include a slot format indicating DCI.

[0087] In a second aspect, either alone or in combination with the first aspect, the one or more DCI communications include one or more of: DCI format 2_0 communication; DCI format 1_0 communication; DCI format 1_1 communication; DCI format 0_0 communication; DCI format 0_1 ​​communication; or DCI format 2_3 communication.

[0088] In a third aspect, alone or in combination with one or more of the first and second aspects, a time slot format is used for carriers in an unpaired spectrum.

[0089] In a fourth aspect, alone or in combination with one or more of the first to third aspects, a determination that one or more DCI communications for dynamic timeslot format determination are not supported is based at least in part on a configuration of the UE.

[0090] In a fifth aspect, alone or in combination with one or more of the first to fourth aspects, configuration of the UE is based at least in part on one or more of: capabilities of the UE; or an operating mode of the UE.

[0091] In a sixth aspect, alone or in combination with one or more of the first to fifth aspects, the configuration of the UE may be reconfigured to support one or more DCI communications for dynamic timeslot format determination.

[0092] In the seventh aspect, alone or in combination with one or more of the first to sixth aspects, the RRC signaling includes one or more indications of one or more of the following: a cell-specific time slot format configuration; or a UE-specific time slot format configuration.

[0093] In the eighth aspect, alone or in combination with one or more of the first to seventh aspects, the RRC signaling includes one or more indications of one or more of the following: a cell-specific slot format configuration identifying one or more flexible symbols within the slot format; and a UE-specific slot format configuration identifying at least one of the one or more flexible symbols within the slot format for uplink or downlink.

[0094] In the ninth aspect, alone or in combination with one or more of the first to eighth aspects, a UE-specific time slot format configuration uses at least one flexible symbol identifier of one or more flexible symbols within the time slot format for a downlink to receive one or more transmissions of: a physical downlink control channel, a physical downlink shared channel, or a channel state indicator reference signal.

[0095] In the tenth aspect, alone or in combination with one or more aspects from the first to the ninth aspects, a UE-specific time slot format configuration uses at least one flexible symbol identifier of one or more flexible symbols within the time slot format for an uplink to send one or more transmissions of: a physical uplink control channel, a physical uplink shared channel, a sounding reference signal, or a physical random access channel.

[0096] In the eleventh aspect, alone or in combination with one or more aspects of the first to tenth aspects, the determination of one or more DCI communications that do not support dynamic time slot format determination is based at least in part on the following: a determination of the time slot format based at least in part on RRC signaling, wherein the RRC signaling identifies a set of symbols for the downlink; and one or more DCI communications indicating that one or more symbols in the set of symbols will be configured for the uplink.

[0097] In the twelfth aspect, alone or in combination with one or more aspects of the first to eleventh aspects, the determination of one or more DCI communications that do not support dynamic time slot format determination is based at least in part on the following: a determination of the time slot format based at least in part on RRC signaling, wherein the RRC signaling identifies a set of symbols for the uplink; and one or more DCI communications indicating that one or more symbols in the set of symbols will be configured for the downlink.

[0098] In a thirteenth aspect, alone or in combination with one or more of aspects one to twelfth, process 700 includes: receiving an indication for performing RRM measurements during a symbol set associated with a time slot format, wherein a determination that one or more DCI communications for dynamic time slot format determination are not supported is based at least in part on one or more DCI communications indicating that one or more symbols in the symbol set will be configured for an uplink.

[0099] In the fourteenth aspect, alone or in combination with one or more of the first to thirteenth aspects, receiving an indication for performing RRM measurements during a symbol set includes: receiving an indication via a synchronization signal / physical broadcast channel block; or receiving an indication via a channel state information reference signal.

[0100] In the fifteenth aspect, alone or in combination with one or more of the first to fourteenth aspects, the RRM is associated with one or more of the following: channel state information, a channel quality indicator, a reference signal received power, a reference signal received quality, or a carrier received signal strength indicator.

[0101] In a sixteenth aspect, alone or in combination with one or more of the first to fifteenth aspects, the process 700 includes providing an indication to a network that the UE does not support one or more DCI communications for dynamic timeslot format determination.

[0102] In the seventeenth aspect, either alone or in combination with one or more of aspects one to sixteen, providing an indication comprises one or more of the following: providing an explicit indication that the UE does not support one or more DCI communications for dynamic time slot format determination; providing an indication of the UE's capabilities; or providing an indication of the UE's operating mode.

[0103] In an eighteenth aspect, alone or in combination with one or more of the first to seventeenth aspects, the process 700 includes: configuring one or more components of the UE based at least in part on a time slot format.

[0104] Although Figure 7Example blocks of process 700 are shown, but in some aspects, process 700 may include Figure 7 The blocks depicted in the process 700 may include additional blocks, fewer blocks, different blocks, or blocks arranged in a different manner than those depicted in the process 700. Additionally or alternatively, two or more blocks in the blocks of process 700 may be executed in parallel.

[0105] The foregoing disclosure provides illustration and description, but is not intended to be exhaustive or to limit the aspects to the precise forms disclosed. Modifications and variations are possible in light of the above disclosure or may be acquired from practice of the various aspects.

[0106] As used herein, the term "component" is intended to be broadly interpreted as hardware, firmware, and / or a combination of hardware and software. As used herein, a "processor" is implemented with hardware, firmware, and / or a combination of hardware and software.

[0107] As used herein, satisfying a threshold may refer to a value being greater than a threshold, greater than or equal to a threshold, less than a threshold, less than or equal to a threshold, equal to a threshold, not equal to a threshold, etc., depending on the context.

[0108] It will be apparent that the systems and / or methods described herein may be implemented with various forms of hardware, firmware, and / or combinations of hardware and software. The actual specialized control hardware or software code used to implement these systems and / or methods is not limiting in any respect. Therefore, the operation and behavior of the systems and / or methods are described herein without reference to specific software code, it being understood that software and hardware may be designed to implement the systems and / or methods based, at least in part, on the description herein.

[0109] Even if the specific combination of features is recorded in the claims and / or disclosed in the specification, these combinations are not intended to limit the disclosure of various aspects. In fact, many of these features can be combined in a manner that is not specifically recorded in the claims and / or specifically disclosed in the specification. Although each dependent claim listed below can only directly depend on one claim, the disclosure of various aspects includes the combination of each dependent claim with each other claim in the claim set. The phrase "at least one of" referring to the list of items refers to any combination of those items, including a single member. For example, "at least one of a, b or c" is intended to cover any combination of a, b, c, ab, ac, bc and abc, and with multiples of the same element (e.g., aa, aaa, aab, aac, abb, acc, bb, bbb, bbc, cc and ccc or any other ordering of a, b and c).

[0110] None of the elements, actions or instructions used herein should be interpreted as key or necessary, unless clearly described as such. In addition, as used herein, the articles "a" and "an" are intended to include one or more projects, and can be used interchangeably with "one or more". In addition, as used herein, the terms "set" and "group" are intended to include one or more projects (e.g., related projects, unrelated projects, combinations of related projects and unrelated projects, etc.), and can be used interchangeably with "one or more". In the case of only expecting one project, the phrase "only one" or similar language is used. In addition, as used herein, the terms "has", "have", "having" and / or similar terms are intended to be open terms. In addition, unless otherwise clearly stated, the phrase "based on" is intended to mean "based at least in part on".

Claims

1. A method of wireless communication performed by a user equipment UE, comprising: determining that one or more downlink control information (DCI) communications instructing the UE to cancel identification of symbols for downlink identified in a radio resource control (RRC) are not supported; as well as The slot format is determined based at least in part on radio resource control, RRC, signaling and independently of the one or more DCI communications.

2. The method according to claim 1, wherein: The one or more DCI communications include a slot format indication DCI.

3. The method according to claim 1, wherein: The one or more DCI communications include one or more of the following: DCI format 2_0 communication; DCI format 1_0 communication; DCI format 1_1 communication; DCI format 0_0 communication; DCI format 0_1 ​​communication; or DCI format 2_3 communication.

4. The method according to claim 3, wherein: The time slot format is used for carriers in an unpaired spectrum.

5. The method according to claim 1, wherein: The determination that the one or more DCI communications are not supported is based at least in part on a configuration of the UE.

6. The method according to claim 5, wherein: The configuration of the UE is based at least in part on one or more of: the capabilities of the UE; or The operation mode of the UE.

7. The method according to claim 5, wherein: The configuration of the UE may be reconfigured to support the one or more DCI communications.

8. The method according to claim 1, wherein: The RRC signaling includes one or more indications of one or more of the following: A cell-specific timeslot format configuration; or UE-specific slot format configuration.

9. The method according to claim 1, wherein: The RRC signaling includes one or more indications of one or more of the following: a cell-specific slot format configuration identifying one or more flexible symbols within the slot format; as well as At least one flexible symbol of the one or more flexible symbols within the slot format identifies a UE-specific slot format configuration for uplink or downlink.

10. The method according to claim 9, wherein: The UE-specific slot format configuration uses at least one flexible symbol identification of the one or more flexible symbols within the slot format for a downlink to receive one or more transmissions of: Physical Downlink Control Channel, Physical Downlink Shared Channel, or Channel State Indicator Reference Signal.

11. The method according to claim 9, wherein: The UE-specific slot format configuration uses at least one flexible symbol identification of the one or more flexible symbols within the slot format for uplink to send one or more transmissions of: Physical Uplink Control Channel, Physical uplink shared channel, Probe reference signal, or Physical random access channel.

12. The method according to claim 1, wherein: The determination that the one or more DCI communications are not supported is based at least in part on: determining the slot format based at least in part on the RRC signaling, wherein the RRC signaling identifies a set of symbols to use for a downlink; and The one or more DCI communications indicate that one or more symbols in the set of symbols are to be configured for uplink.

13. The method according to claim 1, wherein: The determination that the one or more DCI communications are not supported is based at least in part on: determining the slot format based at least in part on the RRC signaling, wherein the RRC signaling identifies a set of symbols to use for an uplink; and The one or more DCI communications indicate that one or more symbols in the set of symbols are to be configured for downlink.

14. The method according to claim 1, further comprising: receiving an indication to perform radio resource management, RRM, measurements during a set of symbols associated with the slot format, The determination that the one or more DCI communications are not supported is based at least in part on the one or more DCI communications indicating that one or more symbols in the set of symbols are to be configured for uplink.

15. The method according to claim 14, wherein: Receiving the indication for performing the RRM measurement during the set of symbols comprises: Receiving the indication via a synchronization signal / physical broadcast channel block; or The indication is received via a channel state information reference signal.

16. The method according to claim 14, wherein: The RRM is associated with one or more of: channel state information, a channel quality indicator, a reference signal received power, a reference signal received quality, or a carrier received signal strength indicator.

17. The method according to claim 1, further comprising: An indication is provided to a network that the UE does not support the one or more DCI communications.

18. The method according to claim 17, wherein: Providing the indication includes one or more of the following: providing an explicit indication that the UE does not support the one or more DCI communications; providing an indication of the capabilities of the UE; or An indication of an operating mode of the UE is provided.

19. The method of claim 1, further comprising: One or more components of the UE are configured based at least in part on the slot format.

20. A user equipment UE for wireless communication, comprising: Memory; as well as one or more processors coupled to the memory, the one or more processors configured to cause the UE to: Determining that one or more downlink control information DCI communications indicating that the UE cancels the identifier of the symbol used for the downlink identified by the radio resource control RRC signaling are not supported; as well as The slot format is determined based at least in part on radio resource control, RRC, signaling and independently of the one or more DCI communications.

21. The UE according to claim 20, wherein: The one or more DCI communications include a slot format indication DCI.

22. The UE according to claim 20, wherein: The one or more DCI communications include one or more of the following: DCI format 2_0 communication; DCI format 1_0 communication; DCI format 1_1 communication; DCI format 0_0 communication; DCI format 0_1 ​​communication; or DCI format 2_3 communication.

23. The UE according to claim 22, wherein: The time slot format is used for carriers in an unpaired spectrum.

24. The UE according to claim 20, wherein: The determination that the one or more DCI communications are not supported is based at least in part on a configuration of the UE.

25. The UE according to claim 24, wherein: The configuration of the UE is based at least in part on one or more of: the capabilities of the UE; or The operation mode of the UE.

26. The UE according to claim 24, wherein: The configuration of the UE may be reconfigured to support the one or more DCI communications.

27. The UE according to claim 20, wherein: The RRC signaling includes one or more indications of one or more of the following: A cell-specific timeslot format configuration; or UE-specific slot format configuration.

28. The UE according to claim 20, wherein: The RRC signaling includes one or more indications of one or more of the following: a cell-specific slot format configuration identifying one or more flexible symbols within the slot format; as well as At least one flexible symbol of the one or more flexible symbols within the slot format identifies a UE-specific slot format configuration for uplink or downlink.

29. The UE according to claim 28, wherein: The UE-specific slot format configuration uses at least one flexible symbol identification of the one or more flexible symbols within the slot format for a downlink to receive one or more transmissions of: Physical Downlink Control Channel, Physical Downlink Shared Channel, or Channel State Indicator Reference Signal.

30. The UE according to claim 28, wherein: The UE-specific slot format configuration uses at least one flexible symbol identification of the one or more flexible symbols within the slot format for uplink to send one or more transmissions of: Physical Uplink Control Channel, Physical uplink shared channel, Probe reference signal, or Physical random access channel.

31. The UE according to claim 20, wherein: The determination that the one or more DCI communications are not supported is based at least in part on: determining the slot format based at least in part on the RRC signaling, wherein the RRC signaling identifies a set of symbols to use for a downlink; and The one or more DCI communications indicate that one or more symbols in the set of symbols are to be configured for uplink.

32. The UE according to claim 20, wherein: The determination that the one or more DCI communications are not supported is based at least in part on: determining the slot format based at least in part on the RRC signaling, wherein the RRC signaling identifies a set of symbols to use for an uplink; and The one or more DCI communications indicate that one or more symbols in the set of symbols are to be configured for downlink.

33. The UE according to claim 20, wherein: The one or more processors are further configured to cause the UE to: receiving an indication to perform radio resource management, RRM, measurements during a set of symbols associated with the slot format, The determination that the one or more DCI communications are not supported is based at least in part on the one or more DCI communications indicating that one or more symbols in the set of symbols are to be configured for uplink.

34. The UE according to claim 33, wherein: To receive the indication for performing the RRM measurement during the symbol set, the one or more processors are configured to cause the UE to: Receiving the indication via a synchronization signal / physical broadcast channel block; or The indication is received via a channel state information reference signal.

35. The UE according to claim 33, wherein: The RRM is associated with one or more of: channel state information, a channel quality indicator, a reference signal received power, a reference signal received quality, or a carrier received signal strength indicator.

36. The UE according to claim 20, wherein: The one or more processors are further configured to cause the UE to: An indication is provided to a network that the UE does not support the one or more DCI communications.

37. The UE according to claim 36, wherein: The instructions provided include one or more of the following: an explicit indication that the UE does not support the one or more DCI communications; an indication of the capabilities of the UE; or An indication of an operating mode of the UE.

38. The UE according to claim 20, wherein: The one or more processors are further configured to cause the UE to: One or more components of the UE are configured based at least in part on the slot format.

39. A non-transitory computer readable medium storing one or more instructions for wireless communication, the one or more instructions, when executed by one or more processors of a user equipment (UE), causes the UE to: Determining that one or more downlink control information DCI communications indicating that the UE cancels the identification of symbols used for the downlink identified by the radio resource control RRC signaling are not supported; and The slot format is determined based at least in part on radio resource control, RRC, signaling and independently of the one or more DCI communications.

40. An apparatus for wireless communication, comprising: A unit for determining that one or more downlink control information DCI communications indicating that a user equipment UE cancels a radio resource control RRC signaling identifier for a downlink are not supported; as well as Means for determining a slot format based at least in part on radio resource control, RRC signaling, and independent of the one or more DCI communications.

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