Techniques for configuring supplemental uplink support for half-duplex FDD UEs

Abstract

Various aspects of the present disclosure provide techniques for configuring a half-duplex UE (HD-UE) to implement a supplemental uplink (SUL) without the benefit of a duplexer within a band combination, which can be in the same or different frequency range (FR) designations (e.g., FR1 or FR2) in both FDD and TDD.

Description

Technical Field

[0001] The present disclosure relates to wireless communication systems, and more particularly, to techniques for configuring a supplemental uplink (SUL) for a half-duplex frequency division duplex (HD-FDD) user equipment (UE). Background Art

[0002] Wireless communication systems are widely deployed to provide a variety of communication services, such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth and transmit power). Examples of such multiple-access technologies include code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), and single-carrier frequency division multiple access (SC-FDMA).

[0003] 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 municipal level, a national level, a regional level, and even a global level. For example, fifth generation (5G) wireless communication technology, which may be referred to as New Radio (NR), is envisioned to expand and support various usage scenarios and applications relative to current mobile network generations. In one aspect, 5G communication technology may include: enhanced mobile broadband, which addresses people-centric use cases for accessing multimedia content, services, and data; ultra-reliable low latency communications (URLLC), which has specific specifications for latency and reliability; and massive machine type communications, which may allow for a huge number of connected devices and the transmission of relatively small amounts of non-delay sensitive information. However, as the demand for mobile broadband access continues to increase, further improvements to NR communication technology and subsequent technologies may be needed. Summary of the Invention

[0004] Various aspects of the present disclosure provide techniques for configuring a half-duplex UE (HD-UE) to implement a supplemental uplink (SUL) without the benefit of a duplexer within a band combination, which can be in the same or different frequency range (FR) designations (e.g., FR1 or FR2) in both FDD and TDD.

[0005] In one example, a method for wireless communication is disclosed. The method may include establishing communication with a user equipment (UE) at a base station, wherein the UE is a half-duplex device lacking a duplexer. The method may also include generating configuration information for bidirectional communication for the UE by allocating at least an anchor carrier for one or both of downlink communication and uplink communication and a supplementary uplink (SUL) carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in one of a time division duplex (TDD) band or a frequency division duplex (FDD) band. The method may also include sending the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink communication and downlink communication in one or both of the anchor carrier and the SUL carrier based on the configuration information.

[0006] In another example, an apparatus for wireless communication may include a memory having instructions and a processor, the processor being configured to execute the instructions to: establish communication with a UE at a base station, wherein the UE is a half-duplex device lacking a duplexer. The processor may also be configured to execute the instructions to: generate configuration information for bidirectional communication for the UE by allocating at least an anchor carrier for one or both of downlink and uplink communication and a SUL carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in one of a TDD frequency band or an FDD frequency band. The processor may also be configured to execute the instructions to: send the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink and downlink communication in one or both of the anchor carrier and the SUL carrier based on the configuration information.

[0007] In some aspects, a non-transitory computer-readable medium includes instructions stored therein that, when executed by a processor, cause the processor to perform steps of establishing communication with a UE at a base station, wherein the UE is a half-duplex device lacking a duplexer. The processor may also execute instructions for generating configuration information for bidirectional communication for the UE by allocating at least an anchor carrier for one or both of downlink and uplink communication and a SUL carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in one of a TDD frequency band or an FDD frequency band. The processor may also execute instructions for transmitting the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink and downlink communication in one or both of the anchor carrier and the SUL carrier based on the configuration information.

[0008] In certain aspects, another apparatus for wireless communication is disclosed. The apparatus may include means for establishing communication with a UE at a base station, wherein the UE is a half-duplex device lacking a duplexer. The apparatus may also include means for generating configuration information for bidirectional communication for the UE by allocating at least an anchor carrier for one or both of downlink and uplink communication and a SUL carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in one of a TDD frequency band or an FDD frequency band. The apparatus may also include means for sending the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink and downlink communication in one or both of the anchor carrier and the SUL carrier based on the configuration information.

[0009] To accomplish the foregoing and related objectives, one or more aspects comprise the features fully described below and particularly pointed out in the claims. The following description and the accompanying drawings set forth in detail certain illustrative features of one or more aspects. However, these features are indicative of but a few of the various ways in which the principles of the various aspects may be employed, and this description is intended to include all such aspects and their equivalents. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Hereinafter, the disclosed aspects will be described with reference to the accompanying drawings, which are provided for the purpose of illustrating and not limiting the disclosed aspects, wherein like reference numerals denote like elements, and wherein:

[0011] Figure 1 is a schematic diagram of an example of a wireless communication system according to aspects of the present disclosure;

[0012] Figure 2 is an example of a timing diagram for UE switching between DL communication to UL communication (and vice versa) and from NUL communication to SUL communication (and vice versa);

[0013] Figure 3 is a schematic diagram of an example implementation of various components of a base station according to various aspects of the present disclosure; and

[0014] Figure 4 is a flow chart of an example of a method of wireless communication implemented by a base station according to aspects of the present disclosure. DETAILED DESCRIPTION

[0015] In recent years, with the introduction of a large number of smart handheld devices, user demand for mobile broadband has increased dramatically. For example, the rapid growth of bandwidth-hungry applications such as video streaming and multimedia file sharing is pushing the limits of current cellular systems. Addressing this demand has primarily focused on traditional smartphones and vertical applications such as vehicle-to-everything (V2X).

[0016] However, in some cases, several Reduced Capability (RedCap) devices and / or Internet of Things (IoT) devices may also be connected to the network. RedCap devices and / or IoT devices can be used in a variety of scenarios, including wearables, industrial wireless sensors, and video surveillance. Some of these scenarios may involve fixed devices, and there may be a relatively large number of such devices within a cell.

[0017] Compared to traditional smartphones, RedCap devices and IoT devices require a smaller form factor. For the purposes of this disclosure, and unless otherwise specified, the terms "RedCap device" or "IoT device" are used interchangeably with "UE." The small form factor of RedCap limits the size and radiation efficiency of the antenna in the device. To further reduce device costs, the duplexer typically integrated in smartphones can be replaced by a relatively low-cost switch in RedCap / IoT devices.

[0018] For reference, a “duplexer” is a hardware device integrated into a smartphone to allow simultaneous bidirectional communication (e.g., uplink and downlink) over the same transmission line (e.g., antenna). This is typically achieved through filters that separate the frequencies of interest, allowing signals of two different frequencies to be transmitted and received from the same antenna. However, as mentioned above, due to size and cost constraints, the duplexer may be replaced by a lower-cost “switcher” for RedCap devices. The inclusion of a switcher (instead of a duplexer) may limit the duplex modes of the RedCap device and increase the noise experienced at the RedCap device. The loss of antenna efficiency and the increase in noise figure may result in a degradation of the uplink coverage of the RedCap device.

[0019] To compensate for the loss of uplink coverage, HD-FDD UEs can be configured to support SUL and / or normal uplink (NUL). In particular, current 5G NR systems can operate in one or more frequency bands within the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, two initial operating frequency bands have been identified with the frequency range (FR) designations FR1 (e.g., 410 MHz–7.125 GHz) and FR2 (e.g., 24.25 GHz–52.6 GHz).

[0020] Compared to lower frequency bands, higher frequency bands can suffer from greater path loss and signal penetration loss. This problem is more severe for uplink communications due to the higher frequency and smaller portion of uplink resource allocations. Consequently, cell coverage in the uplink direction (e.g., from UE to base station) can typically be lower than in the downlink direction (e.g., from base station to UE), in part because the UE Tx power (i.e., uplink power) is not as strong as the base station transmitter power (i.e., downlink power).

[0021] To compensate for this degradation, the base station can configure the UE or RedCap device to use a SUL frequency band that is lower than the normal uplink (NUL) frequency band. For example, the UE can be configured to also utilize the SUL carrier in the 1.8 GHz band and utilize the NUL TDD carrier in the 3.5 GHz band. This is because cell coverage can be inversely proportional to the frequency band used for communication (for example, as the frequency becomes lower, the cell coverage becomes larger). In this way, when the channel condition between the UE and the base station is above the channel quality threshold (for example, when the UE is closer to the base station), the UE can send uplink communications on the NUL frequency (for example, the 3.5 GHz band). However, when the channel condition is below the channel quality threshold, the base station can configure the UE to use the SUL (for example, 1.8 GHz) for uplink communications instead.

[0022] In current 5G NR systems, additional SUL carriers are limited to time division duplex (TDD) bands. However, RedCap devices can support both TDD and frequency domain duplex (FDD). TDD refers to a duplex communication link in which the uplink is separated from the downlink by allocating different time slots in the same frequency band. In contrast, FDD can refer to a transmitter and receiver operating using different carrier frequencies. As mentioned above, the duplex mode capabilities of RedCap devices may be limited without replacing the duplexer with a lower-cost switch.

[0023] Aspects of the present disclosure address the aforementioned issues by implementing techniques for configuring a half-duplex UE (HD-UE) to implement SUL in a band combination, which may be in both FDD and TDD in the same or different FRs, without the benefit of a duplexer. For example, in one scenario, downlink transmissions from a base station to a HD-UE may occur on a TDD band in FR1, while uplink transmissions may occur on the SUL or TDD band in FR1. In another scenario, downlink transmissions for the HD-UE may occur on a downlink carrier of an FDD band in FR1, while uplink transmissions may occur on the SUL in FR1. In another scenario, downlink transmissions may occur on a TDD band in FR2, while uplink transmissions may occur on the SUL in FR1 or the FDD band in FR2. In another example, downlink transmissions may occur on a TDD band in FR2, while uplink transmissions may occur on either the FDD band or the TDD band in FR2. In another example, downlink transmissions may occur on a TDD band in FR2 or a TDD band in FR1, while uplink transmissions may occur on a TDD band in FR1 or a TDD band in FR2. Finally, in another example, downlink transmissions may occur on a downlink carrier in an FDD band in FR1, while uplink transmissions may occur on a SUL in FR1 or an uplink carrier in FDD in FR1.

[0024] In some aspects, the downlink and uplink bandwidth part (BWP) configuration for HD-UEs can be configured by the base station. BWPs enable greater flexibility in how resources are allocated within a given carrier. In particular, BWPs are able to multiplex different signals and signal types to better utilize and adapt spectrum and UE power. Using BWPs, carriers can be subdivided and used for different purposes. Each 5G NR BWP has its own digital scheme, which means that each BWP can be configured differently to take advantage of its own signal characteristics, resulting in more efficient use of spectrum and more efficient use of power.

[0025] According to aspects of the present disclosure, a base station may configure an uplink BWP based on downlink control information (DCI) sent on a downlink carrier in a TDD frequency band (FR1 or FR2) or an FDD frequency band (FR1). In another example, the BWP may be configured using radio resource control (RRC) signaling on a downlink carrier. In some aspects, the RRC signaling may be dedicated (for a single HD-UE) or common to a group of HD-UEs. The RRC signaling may be sent in a TDD frequency band (e.g., FR1 or FR2) or an FDD frequency band (FR1).

[0026] Digital scheme configurations for the downlink and uplink BWPs can be activated for the HD-UE. In particular, when the downlink carrier and the uplink carrier of the HD-UE belong to the same FR, the digital scheme of the DL BWP and the digital scheme of the uplink BWP can be the same or different. However, when the downlink carrier and the uplink carrier of the HD-UE belong to different FRs, the digital scheme of the downlink BWP and the digital scheme of the uplink BWP can be different.

[0027] In addition, when the HD-UE switches from downlink communication to uplink communication or from uplink communication to downlink communication, a guard period can be configured. For this purpose, the design options for the guard period for the HD-UE (including for cross-band combinations) can include the same guard period of Nμ symbols for downlink-to-uplink (DL-to-UL) switching and uplink-to-downlink (UL-to-DL) switching, or a different guard period for DL-to-UL compared to the guard period for UL-to-DL (e.g., a first guard period for DL-to-UL switching and a second guard period for UL-to-DL switching, where the first guard period and the second guard period are different).

[0028] In the first scenario where the same guard period is used for DL-to-UL switching and UL-to-DL switching, the guard period Nμ can be a function of the minimum subcarrier spacing (SCS) of the active downlink BWP and the active uplink BWP (e.g., μ = (SCS UL-BWP , SCS DL-BWP ). In some examples, the value of Nμ can be hard-coded in the specification or indicated as part of the system information in the system information block (SIB). This can include: reusing the HD Tx-Rx switching time, and selecting the larger one if the FRs of the downlink and uplink are different. Alternatively, the BWP switching gap can be reused based on specific SCS values.

[0029] In the second scenario where the guard periods for DL-to-UL switching and UL-to-DL switching are different, the DL-to-UL switching can utilize a guard period of Nμ symbols, while the UL-to-DL switching can utilize a guard period of Nμ – Δ symbols (where 0 < Δ < Nμ). In this scenario, the value of Δ can be hard-coded in the specification or indicated in the SIB, depending on the FR and / or SCS of the uplink BWP and the downlink BWP. Thus, the guard period for DL-to-UL can be longer than the guard period when switching from UL to DL. In some aspects, the UE can also report the switching time via capability signaling, including reporting one or both of the values Nμ and Δ to the base station.

[0030] The guard position (e.g., which carrier and which symbol) may also be configured. For example, with respect to DL to UL switching, when the uplink transmission is on the TDD frequency band, the guard position may be configured on the uplink carrier, which fully or partially overlaps with the flexible symbols of the uplink carrier or the downlink carrier). However, when the uplink transmission is on the FDD frequency band, the guard position may be configured on the downlink carrier or the uplink carrier. With respect to UL to DL switching, when the downlink transmission is on the TDD frequency band, the guard position may be configured on the downlink carrier, which fully or partially overlaps with the uplink symbols of the downlink carrier. However, when the downlink transmission is on the FDD frequency band, the guard position may be configured on the downlink carrier or the uplink carrier again.

[0031] In some aspects, slot and symbol repetition may be allowed to improve transmission reliability. This may include a joint configuration of repetitions, where, for example, a transmission of 8 repetitions may be subdivided so that 6 transmissions occur on the NUL and 2 transmissions occur on the SUL (or 6 transmissions occur on the SUL and 2 transmissions occur on the NUL). The repeated transmission resources may be on the same symbol or frequency configuration. If repetition is interrupted on one of the NUL / SUL, the UE may restart the repetition on a new component carrier (CC), or if channel grant (CG) resources are available, the UE may complete the remaining number of repetitions on a new CC. In another alternative, once repetition is interrupted, the UE may identify the interruption as an error condition and abandon further uplink transmissions.

[0032] Now refer to Figure 1-4 Various aspects are described in more detail. 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 these aspects can be practiced without these specific details. In addition, the term "component" used herein can be one of the components that constitute a system, which can be hardware, firmware and / or software stored on a computer-readable medium, and can be divided into other components.

[0033] The following description provides examples but does not limit the scope, applicability, or examples described in the claims. The functions and arrangements of the elements discussed may be changed without departing from the scope of this disclosure. Various examples may omit, replace, or add various processes or components as appropriate. 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 respect to some examples may be combined in other examples.

[0034] Figure 11 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). A macro cell may include a base station. A small cell may include a femto cell, a pico cell, and a micro cell. In one example, the base station 102 may also include a gNB 180, as further described herein. In one example, according to various aspects described herein, some nodes of the wireless communication system may have a modem and an HD-UE configuration component 305 for configuring an HD UE to implement SUL in a band combination without the benefit of a duplexer, which band combination may be in both FDD and TDD in the same or different FRs.

[0035] A 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). A 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. Among other functions, the base station 102 may perform one or more of the following: transmission 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 device tracking, RAN information management (RIM), paging, positioning, and transmission of warning messages. Base stations 102 may communicate with each other via backhaul links 134 (e.g., using an X2 interface) directly or indirectly (e.g., via EPC 160 or 5GC 190). Backhaul links 134 may be wired or wireless.

[0036] Base station 102 can communicate wirelessly with one or more UEs 104. Each base station 102 provides 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 that includes 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 service to a restricted group, which may be referred to as a Closed Subscriber Group (CSG). The communication link 120 between base station 102 and UE 104 may include uplink (UL) (also known as reverse link) transmissions from UE 104 to base station 102 and / or downlink (DL) (also known as forward link) transmissions from base station 102 to UE 104. The communication link 120 may use multiple-input multiple-output (MIMO) antenna technology, including spatial multiplexing, beamforming, and / or transmit diversity. The communication link may be over one or more carriers. Base station 102 / UE 104 can use spectrum with a bandwidth of up to Y MHz (e.g., 5, 10, 15, 20, 100, 400, etc. MHz) per carrier allocated in carrier aggregation for transmission in the DL and / or UL directions up to a total of Yx MHz (e.g., for x component carriers). The carriers may be adjacent or non-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 for DL ​​than for UL). Component carriers 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 carriers may be referred to as secondary cells (Scells).

[0037] In another example, specific UEs 104 can communicate with each other using device-to-device (D2D) communication links 158. The D2D communication links 158 can use the DL / UL WWAN spectrum. The D2D communication links 158 can 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). D2D communication can be performed through various wireless D2D communication systems, such as FlashLinQ, WiMedia, Bluetooth, ZigBee, Wi-Fi based on the IEEE 802.11 standard, LTE, or NR.

[0038] The wireless communication system may also include a Wi-Fi access point (AP) 150 that communicates with a Wi-Fi station (STA) 152 via a communication link 154 in the 5 GHz unlicensed spectrum. When communicating in the unlicensed spectrum, the STA 152 / AP 150 may perform a clear channel assessment (CCA) to determine whether the channel is available before communicating.

[0039] Small cell 102′ can operate in licensed and / or unlicensed spectrum. When operating in the unlicensed spectrum, small cell 102′ can employ NR and use the same 5 GHz unlicensed spectrum as used by Wi-Fi AP 150. Small cell 102′ employing NR in the unlicensed spectrum can improve access network coverage and / or increase access network capacity.

[0040] Whether a small cell 102' or a large cell (e.g., a macro base station), the base station 102 can include an eNB, a gNodeB (gNB), or other type of base station. Some base stations, such as gNB 180, can operate in one or more frequency bands within the electromagnetic spectrum. The electromagnetic spectrum is typically subdivided into various categories, bands, channels, etc. based on frequency / wavelength. In 5G NR, the two initial operating bands are identified with the frequency range designations FR1 (410 MHz–7.125 GHz) and FR2 (24.25 GHz–52.6 GHz). The frequencies between FR1 and FR2 are typically referred to as mid-band frequencies. Although a portion of FR1 is greater than 6 GHz, FR1 is often (interchangeably) referred to as the "Sub-6 GHz" band in various documents and articles. A similar naming issue sometimes arises with respect to FR2, which is often (interchangeably) referred to in documents and articles as the “millimeter wave” (mmW) band, even though FR2 is different from the extremely high frequency (EHF) band (30 GHz–300 GHz), which is identified as the “millimeter wave” band by the International Telecommunication Union (ITU).

[0041] With the foregoing in mind, unless otherwise specified, it should be understood that, as used herein, the term "sub-6 GHz," etc., can broadly refer to frequencies that may be below 6 GHz, may be within FR1, or may include mid-band frequencies. Furthermore, unless otherwise specified, it should be understood that, as used herein, the term "millimeter wave," etc., can broadly refer to frequencies that may include mid-band frequencies, may be within FR2, or may be within the EHF band. Communications using the mmW radio frequency band have extremely high path loss and a relatively short range. The mmW base station 180 can utilize beamforming 182 with the UE 110 to compensate for the path loss and short range.

[0042] The base station 102 referred to herein may include a gNB 180. The EPC 160 may include a mobility management entity (MME) 162, other MMEs 164, a serving gateway 166, a multimedia broadcast multicast service (MBMS) gateway 168, a broadcast multicast service center (BM-SC) 170, and a packet data network (PDN) gateway 172. The MME 162 may communicate with a home subscriber server (HSS) 174. The MME 162 is a control node that handles signaling between the UE 104 and the EPC 160. Generally, the MME 162 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the serving gateway 166, which is itself 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. IP services 176 may include the Internet, an intranet, an IP multimedia subsystem (IMS), PS streaming services, and / or other IP services. The BM-SC 170 can provide functionality for MBMS user service provisioning and delivery. The BM-SC 170 can serve as the entry point for content providers' MBMS transmissions, can be used to authorize and initiate MBMS bearer services within a public land mobile network (PLMN), and can be used to schedule MBMS transmissions. The MBMS gateway 168 can be used to distribute MBMS services to base stations 102 belonging to a multicast broadcast single frequency network (MBSFN) area that broadcasts a specific service, and can be responsible for session management (start / stop) and collecting billing information related to eMBMS.

[0043] 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 communicate with a unified data management (UDM) 196. AMF 192 may be a control node that handles signaling between UE 104 and 5GC 190. Typically, AMF 192 may provide QoS flow and session management. User Internet Protocol (IP) packets (e.g., from one or more UEs 104) may be transmitted through UPF 195. UPF 195 may provide UE IP address allocation for one or more UEs, as well as other functions. UPF 195 is connected to IP services 197. IP services 197 may include the Internet, an intranet, an IP multimedia subsystem (IMS), PS streaming services, and / or other IP services.

[0044] 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 transmit / receive point (TRP), or some other suitable terminology. Base station 102 provides an access point to EPC 160 or 5GC 190 for UE 104. Examples of UE 104 include a cellular phone, a smartphone, 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, a smart device, a wearable device, a vehicle, an electric meter, a gas pump, a large or small kitchen appliance, a medical device, an implant, a sensor / actuator, a display, or any other device with similar functionality. Some UEs 104 may be referred to as IoT devices (e.g., a parking meter, a gas pump, a toaster, a vehicle, a heart monitor, etc.). IoT UEs may include machine type communication (MTC) / enhanced MTC (eMTC, also known as Category (CAT)-M, Category M1) UEs, NB-IoT (also known as CATNB1) 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 (enhanced further eMTC), mMTC (massive MTC), etc., and NB-IoT may include eNB-IoT (enhanced NB-IoT), FeNB-IoT (enhanced further NB-IoT), etc. UE 104 may also be referred to as a station, mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0045] In one example, the full-duplex communication component 350 can receive a DCI transmission to facilitate multi-beam full-duplex communication. The full-duplex communication component 350 can also decode the DCI to identify one or more beams to be used for multi-beam full-duplex communication for the first UE from a plurality of candidate beams. In some examples, the multi-beam full-duplex communication can include the first UE simultaneously transmitting uplink communications through at least a first beam and receiving downlink communications through at least a second beam on the same frequency band. In addition, the full-duplex communication component 350 can transmit uplink data to the base station or the second UE via the UE's first set of antennas on at least the first beam identified based on the decoding of the DCI during the first time slot. The full-duplex communication component 350 can also receive downlink data from the base station or the second UE via the UE's second set of antennas on at least the second beam identified based on the decoding of the DCI during the first time slot.

[0046] Similarly, one or more base stations (e.g., gNB 102) or UE 104 (e.g., for sidelink communications) may generate DCI in accordance with aspects of the present disclosure, as well as signal full-duplex capabilities and beam assignments for concurrent uplink and downlink communications on the same frequency band.

[0047] Figure 2 2 is an example of a timing diagram 200 for UE switching between DL communication to UL communication (and UL communication to DL communication) and from NUL communication to SUL communication (and from SUL communication to NUL communication). As shown, the UE can switch from DL communication to UL communication within the same carrier (as shown on time slots 2-4 of "carrier 2") and from NUL (time slot 4) to SUL (time slot numbered 2 in "carrier 1") between two carriers. The UE can also switch from SUL back to NUL, as shown from time slot numbered 3 of carrier 1 to time slot numbered 8 of carrier 2.

[0048] In some aspects, a guard period (e.g., gap period 205) may be configured when the HD-UE switches from downlink to uplink communication or from uplink to downlink communication and / or from NUL to SUL (e.g., gap periods 210 and 215). As described above, design options for the guard period for the HD-UE (including for cross-band combinations) may include the same guard period of Nμ symbols for downlink to uplink (DL to UL) and uplink to downlink (UL to DL) switching, or using a different guard period for DL ​​to UL compared to the guard period for UL to DL (e.g., a first guard period for DL ​​to UL switching and a second guard period for UL to DL switching, wherein the first guard period and the second guard period are different).

[0049] In the first scenario where the same guard period is used for both DL to UL and UL to DL switches, the guard period Nμ can be a function of the minimum SCS of the active downlink BWP and the active uplink BWP (e.g., μ = (SCS UL -BWP, SCS DL-BWP )). In some examples, the value of Nμ can be hard-coded in the specification or indicated as part of the system information in the SIB. This can include: reusing the HD Tx-Rx switch time and selecting the larger one if the FRs of the downlink and uplink are different. Alternatively, the BWP switch gap can be reused based on SCS-specific values.

[0050] In the second scenario where the guard periods for DL to UL and UL to DL switches are different, the DL to UL switch can utilize a guard period of Nμ symbols, while the UL to DL switch can utilize a guard period of Nμ – Δ symbols (where 0 < Δ < Nμ). In this scenario, the value of Δ can be hard-coded in the specification or indicated in the SIB, depending on the FR and / or SCS of the uplink BWP and the downlink BWP. In some aspects, the UE can also report the switch time via capability signaling, including reporting one or both of the values Nμ and Δ to the base station.

[0051] The location of the guard period (e.g., which carrier and which symbol) can also be configured. For example, regarding the DL to UL switch, when the uplink transmission is on a TDD carrier, the guard period can be configured on the uplink carrier, which overlaps completely or partially with the flexible symbols of the uplink carrier or the downlink carrier). However, when the uplink transmission is on an FDD carrier, the guard period can be configured on the downlink carrier or the uplink carrier. Regarding the UL to DL switch, when the downlink transmission is on a TDD carrier, the guard period is configured on the downlink carrier, which overlaps completely or partially with the uplink symbols of the downlink carrier. However, when the downlink transmission is on an FDD carrier, the guard period can again be configured on the downlink carrier or the uplink carrier.

[0052] In some aspects, slot and symbol repetition may be allowed to improve transmission reliability. This may include a joint configuration of repetitions, where, for example, a transmission of 8 repetitions may be subdivided so that 6 transmissions occur on the NUL and 2 transmissions occur on the SUL (or 6 transmissions occur on the SUL and 2 transmissions occur on the NUL). The repeated transmission resources may be on the same symbol or frequency configuration. If repetition is interrupted on one of the NUL / SUL, the UE may restart the repetition on a new component carrier (CC), or if channel grant (CG) resources are available, the UE may complete the remaining number of repetitions on a new CC. In another alternative, once repetition is interrupted, the UE may identify the interruption as an error condition and abandon further uplink transmissions.

[0053] Figure 3 The hardware components and subcomponents of the base station 102 are shown for implementing one or more methods described herein, such as method 400, in accordance with various aspects of the present disclosure. For example, one example implementation of the base station 102 may include various components, some of which have been described above, but including components such as one or more processors 312, memory 316, and transceiver 302, which may operate in conjunction with the HD-UE configuration component 305 to perform the functions described herein in connection with one or more methods, such as 400, including the present disclosure.

[0054] In some aspects, the HD-UE configuration component 305 can configure the HD UE to implement SUL without the benefit of a duplexer in a frequency band combination, which can be in both FDD and TDD in the same or different FRs. For example, in one scenario, downlink transmissions from the base station to the HD-UE can occur on a TDD frequency band in FR1, while uplink transmissions can occur on the SUL or TDD frequency band in FR1. In another scenario, downlink transmissions to the HD-UE can occur on a downlink carrier of an FDD frequency band in FR1, while uplink transmissions can occur on the SUL in FR1. In another scenario, downlink transmissions can occur on a TDD frequency band in FR2, while uplink transmissions can occur on the SUL in FR1 or the FDD frequency band in FR2. In another example, downlink transmissions can occur on a TDD frequency band in FR2, while uplink transmissions can occur on either the FDD frequency band or the TDD frequency band in FR2. In another example, downlink transmissions may occur on a TDD band in FR2 or a TDD band in FR1, while uplink transmissions may occur on a TDD band in FR1 or a TDD band in FR2. Finally, in another example, downlink transmissions may occur on a downlink carrier in an FDD band in FR1, while uplink transmissions may occur on a SUL in FR1 or an uplink carrier in FDD in FR1.

[0055] Furthermore, in some aspects, the downlink and uplink BWP configurations for the HD-UE can be configured by the HD-UE configuration component 305, and more specifically by the BWP configuration component 310 of the base station 102. According to aspects of the present disclosure, the HD-UE configuration component 305 can configure the uplink BWP based on downlink control information (DCI) sent on a downlink carrier in a TDD frequency band (FR1 or FR2) or an FDD frequency band (FR1). In another example, the BWP can be configured using radio resource control (RRC) signaling on a downlink carrier. In some aspects, the RRC signaling can be dedicated (for a single HD-UE) or common to a group of HD UEs. The RRC signaling can be sent in a TDD frequency band (e.g., FR1 or FR2) or an FDD frequency band (FR1).

[0056] The digital scheme configuration for downlink and uplink BWP can be activated for HD-UEs. Specifically, when the downlink carrier and uplink carrier of the HD-UE belong to the same frame rate, the digital scheme of the downlink BWP and the digital scheme of the uplink BWP can be the same or different. However, when the downlink carrier and uplink carrier of the HD-UE belong to different frame rates, the digital scheme of the downlink BWP and the digital scheme of the uplink BWP can be different.

[0057] The one or more processors 312, modem 314, memory 316, transceiver 302, RF front end 388, and one or more antennas 365 can be configured to support voice and / or data messages (simultaneously or non-simultaneously) across one or more radio access technologies. In one aspect, the one or more processors 312 can include a modem 314 that utilizes one or more modem processors. Various functions associated with the full-duplex communication manager component 350 can be included in the modem 314 and / or processor 312 and, in one aspect, can be performed by a single processor, while in other aspects, different ones of these functions can be performed by a combination of two or more different processors. For example, in one aspect, the one or more processors 312 can include any one or any combination of a modem processor, a baseband processor, a digital signal processor, a transmit processor, a receiver processor, or a transceiver processor associated with the transceiver 302. In other aspects, some features of the one or more processors 312 and / or modem 314 associated with the communication manager component 350 can be performed by the transceiver 302.

[0058] The memory 316 can be configured to store data used herein and / or local versions of the applications 375 or the HD-UE configuration component 305 and / or one or more subcomponents thereof executed by the at least one processor 312. The memory 316 can include any type of computer-readable medium usable by a computer or the at least one processor 312, such as random access memory (RAM), read-only memory (ROM), tape, magnetic disk, optical disk, volatile memory, non-volatile memory, and any combination thereof. In one aspect, for example, the memory 316 can be a non-transitory computer-readable storage medium that stores one or more computer-executable codes for defining the HD-UE configuration component 305 and / or one or more subcomponents thereof, and / or data associated therewith, when the base station 102 is operating the at least one processor 312 to execute the HD-UE configuration component 305 and / or one or more subcomponents thereof.

[0059] The transceiver 302 may include at least one receiver 306 and at least one transmitter 308. The receiver 306 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 306 may be, for example, a radio frequency (RF) receiver. In one aspect, the receiver 306 may receive signals transmitted by at least one UE 104. Furthermore, the receiver 306 may process such received signals and may also obtain signal measurements, such as, but not limited to, Ec / Io, SNR, RSRP, RSSI, etc. The transmitter 308 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 308 may include, but are not limited to, an RF transmitter.

[0060] Moreover, in one aspect, the transmitting device may include an RF front end 388 that may operate in communication with one or more antennas 365 and the transceiver 302 for receiving and transmitting radio transmissions, such as wireless communications transmitted by at least one base station 102 or wireless transmissions transmitted by a UE 104. The RF front end 388 may be connected to the one or more antennas 365 and may include one or more low noise amplifiers (LNAs) 390, one or more switches 392, one or more power amplifiers (PAs) 398, and one or more filters 396 for transmitting and receiving RF signals.

[0061] In one aspect, the LNAs 390 can amplify received signals at a desired output level. In one aspect, each LNA 390 can have assigned minimum and maximum gain values. In one aspect, the RF front end 388 can use one or more switches 392 to select a particular LNA 390 and its assigned gain value based on the desired gain value for a particular application.

[0062] Furthermore, for example, the RF front end 388 can use one or more PAs 398 to amplify the signal for RF output at a desired output power level. In one aspect, each PA 398 can have a specified minimum and maximum gain value. In one aspect, the RF front end 388 can use one or more switches 392 to select a particular PA 398 and the specified gain value based on the desired gain value for a particular application.

[0063] Furthermore, for example, the RF front end 388 can use one or more filters 396 to filter received signals to obtain input RF signals. Similarly, in one aspect, for example, a corresponding filter 396 can be used to filter the output from a corresponding PA 398 to generate an output signal for transmission. In one aspect, each filter 396 can be connected to a specific LNA 390 and / or PA 398. In one aspect, based on the configuration as specified by the transceiver 302 and / or the processor 312, the RF front end 388 can use one or more switches 392 to select a transmit path or a receive path that uses a specified filter 396, LNA 390, and / or PA 398.

[0064] As such, the transceiver 302 can be configured to transmit and receive wireless signals via the RF front end 388 through one or more antennas 365. In one aspect, the transceiver 302 can be tuned to operate at a specified frequency so that the transmitting device can communicate with, for example, one or more UEs 104 or one or more cells associated with one or more base stations 102. In one aspect, the modem 314 can configure the transceiver 302 to operate at a specified frequency and power level based on, for example, the configuration of the transmitting device and the communication protocol used by the modem 314.

[0065] In one aspect, the modem 314 can be a multi-band multi-mode modem that can process digital data and communicate with the transceiver 302 so that digital data can be sent and received using the transceiver 302. In one aspect, the modem 314 can be multi-band and configured to support multiple frequency bands for a specific communication protocol. In one aspect, the modem 314 can be multi-mode and configured to support multiple operating networks and communication protocols. In one aspect, the modem 314 can control one or more components of the transmitting device (e.g., RF front end 388, transceiver 302) based on a specified modem configuration to enable sending and / or receiving signals from the network. In one aspect, the modem configuration can be based on the mode of the modem 314 and the frequency band in use. In another aspect, the modem configuration can be based on base station configuration information associated with the transmitting device as provided by the network during cell selection and / or cell reselection.

[0066] Reference Figure 4 , an example method 400 for wireless communication according to aspects of the present disclosure may be provided by reference to Figure 1 The method 400 is performed by one or more base stations 102 discussed herein. Although the method 400 is described below with respect to elements of a base station 102, other components may be used to implement one or more of the steps described herein.

[0067] At block 405, method 400 may include establishing communications with a user equipment (UE) at a base station. In some examples, the UE may be a half-duplex device (e.g., a RedCap device or an IoT device) that lacks a duplexer. In practice, instead of a duplexer, the UE may include a switch to enable the UE to switch between uplink and downlink communications and / or NUL to SUL or SUL to NUL. Aspects of block 405 may be performed by transceiver 302, which may be configured as described with reference to FIG. Figure 3 The depicted one or more antennas 365 receive communications from the UE 104. Thus, the transceiver 302, HD-UE configuration component 350, modem 314, processor 312, and / or base station 102 or one of its subcomponents may define means for establishing communication with a UE at the base station.

[0068] At block 410, method 400 may include generating configuration information for the UE to use for bidirectional communication by allocating at least an anchor carrier for one or both of downlink and uplink communications and a supplementary uplink (SUL) carrier for uplink communications. In some examples, the anchor carrier and the SUL carrier are in one of a time division duplex (TDD) band or a frequency division duplex (FDD) band. Aspects of block 410 may be as described with reference to Figure 3 The HD-UE configuration component 350 is described as executing. Thus, the HD-UE configuration component 350, the modem 314, the processor 312, and / or the base station 102, or one of its subcomponents, can define means for generating configuration information for the UE to use for bidirectional communication by allocating at least an anchor carrier for one or both of downlink and uplink communications and a SUL carrier for uplink communications.

[0069] In some aspects, generating the configuration information may include configuring a downlink transmission from the base station to the HD-UE, where the downlink transmission may occur on a TDD frequency band in FR1, and an uplink transmission may occur on a SUL or TDD frequency band in FR1. For example, the method may include configuring a downlink transmission from the base station to the UE on an anchor carrier in a TDD frequency band in frequency range 1 (FR1), where FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum, and configuring an uplink transmission on a SUL carrier or TDD in FR1.

[0070] In another scenario, downlink transmissions for HD-UEs may occur on a downlink carrier of an FDD frequency band in FR1, while uplink transmissions may occur on an SUL of FR1. For example, the method may include configuring downlink transmissions from a base station to a UE on an anchor carrier in an FDD frequency band of frequency range 1 (FR1), where FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum, and configuring uplink transmissions on an SUL carrier in the FDD frequency band of FR1.

[0071] In another scenario, downlink transmissions may occur on a TDD frequency band in FR2, while uplink transmissions may occur on a SUL frequency band in FR1 or an FDD frequency band in FR2. For example, the method may include configuring a downlink transmission from the base station to the UE on an anchor carrier in a TDD frequency band in frequency range 2 (FR2), where FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum, and configuring an uplink transmission on a SUL carrier in FR1 or a TDD frequency band in FR2.

[0072] In another example, the downlink transmission may occur on a TDD frequency band in FR2, and the uplink transmission may occur on an uplink carrier in an FDD frequency band or a TDD frequency band in FR2. In some examples, the method may include configuring a downlink transmission from the base station to the UE on an anchor carrier in a TDD frequency band in frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum, and configuring the uplink transmission on an FDD frequency band or a TDD frequency band in FR2.

[0073] In another example, the downlink transmission may occur on a TDD frequency band in FR2 or a TDD frequency band in FR1, and the uplink transmission may occur on a TDD frequency band in FR1 or a TDD frequency band in FR2. In some examples, the method may include configuring a downlink transmission from the base station to the UE on an anchor carrier in a TDD frequency band in frequency range 2 (FR2) or a TDD frequency band in frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum, and configuring the uplink transmission on the TDD frequency band in FR1 or FR2.

[0074] In another example, the downlink transmission may occur on a downlink carrier of an FDD frequency band in FR1, and the uplink transmission may occur on an uplink carrier of an FDD frequency band in FR1 or an SUL frequency band in FR1. In some examples, the method may include configuring a downlink transmission from the base station to the UE on an anchor carrier in an FDD frequency band in frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum, and configuring the uplink transmission on an uplink carrier of the FDD frequency band in FR1 or an SUL frequency band in FR1.

[0075] Additionally or alternatively, generating the configuration information may include configuring an uplink bandwidth part (BWP) based on downlink control information (DCI) sent on a downlink carrier of a TDD frequency band in one of frequency range 1 (FR1) or frequency range 2 (FR2), or an FDD frequency band in FR1, wherein FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

[0076] In some aspects, generating the configuration information may include configuring the uplink BWP using RRC signaling on a downlink carrier, wherein the RRC is dedicated to the UE or for a group of UEs, wherein the RRC signaling is sent in a TDD band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or an FDD band in FR1.

[0077] In some examples, method 400 may include determining, based on configuration information, one or both of a guard period or guard position when the UE switches between uplink and downlink communications in one or both of an anchor carrier and a SUL carrier. The guard period of Nμ symbols for both uplink-to-downlink (UL-DL) and downlink-to-uplink (DL-UP) switching may be determined based on a function of an active downlink bandwidth part (BWP) and a minimum subcarrier spacing (SCS) of the active uplink BWP. In other examples, the guard period of Nμ symbols for downlink-to-uplink (DL-UP) switching may be determined based on a function of an active downlink bandwidth part (BWP) and a minimum subcarrier spacing (SCS) of the active uplink BWP. Furthermore, the guard period for uplink-to-downlink (UL-DL) switching may be Nμ symbols minus a delta (Δ) value, where the delta (Δ) value is greater than zero and less than Nμ symbols.

[0078] In some examples, the protection position may also be determined when the UE switches between UL to DL or DL ​​to UL in NUL or SUL. In particular, identifying the protection position may include configuring the protection position on the uplink carrier of the TDD band when the UE is to perform a downlink to uplink (DL to UP) switch. In other examples, when the UE performs a downlink to uplink (DL to UP) switch, when the uplink transmission is on the FDD band, the protection position may be on the downlink carrier or the uplink carrier. In addition, in some aspects, when the UE performs a UL to DL switch, the protection position may be configured on the downlink carrier when the downlink transmission is on the TDD band. In other cases, when the UE performs a UL to DL switch, when the downlink transmission is on the FDD band, the protection position may be configured on the downlink carrier or the uplink carrier.

[0079] At block 415, method 400 may include sending configuration information for bidirectional communication to the UE, wherein the UE switches between uplink communication and downlink communication in one or both of the anchor carrier and the SUL carrier based on the configuration information. Aspects of block 415 may be performed by transceiver 302, which may be configured as described with reference to FIG. Figure 3 The depicted one or more antennas 365 transmit communications to the UE 104. Thus, the transceiver 302, the HD-UE configuration component 350, the modem 314, the processor 312, and / or the base station 102 or one of its subcomponents may define means for transmitting configuration information for bidirectional communication to the UE, wherein the UE switches between uplink and downlink communications in one or both of the anchor carrier and the SUL carrier based on the configuration information.

[0080] In some examples, the method may further include: receiving, at a base station, a repeated transmission from the UE over a plurality of time slots, wherein the repeated transmission is in one or both of a normal uplink (NUL) carrier or a SUL carrier. The method may include: detecting an interruption of the repeated transmission from the UE, and receiving the restarted repeated transmission from the UE on a new component carrier. The method may further include: detecting an interruption of the repeated transmission from the UE, and receiving a portion of the interrupted repeated transmission from the UE on a new component carrier. In some examples, the method may further include: detecting an interruption of the repeated transmission from the UE, wherein the UE abandons transmission of the remaining portion of the interrupted repeated transmission.

[0081] The above detailed description given above in conjunction with the accompanying drawings describes examples and does not represent the only examples that can be implemented or within the scope of the claims. When used in this specification, the term "example" means "used as an example, instance or illustration", rather than "preferred" or "more advantageous than other examples". The detailed description includes specific details to provide an understanding of the described technology. However, these technologies can be implemented without these specific details. In some cases, well-known structures and devices are shown in block diagram form to avoid obscuring the concepts of the described examples.

[0082] Information and signals may be represented using any of a variety of different technologies and techniques. For example, data, instructions, commands, information, signals, bits, symbols, and chips referred to throughout the above description may be represented by voltages, currents, electromagnetic waves, magnetic fields or particles, optical fields or particles, computer-executable code or instructions stored on a computer-readable medium, or any combination thereof.

[0083] The various illustrative blocks and modules 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, an 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 alternatively, 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 (e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, a combination of one or more microprocessors and a DSP core, or any other such configuration).

[0084] The functions described herein may be implemented using hardware, software executed by a processor, firmware, or any combination thereof. If implemented using software executed by a processor, the functions may be stored as one or more instructions or codes on or transmitted via a non-transitory computer-readable medium. Other examples and implementations are within the scope and spirit of this disclosure and the appended claims. For example, due to the nature of software, the functions described above may be implemented using software executed by a processor, hardware, firmware, hardwiring, or a combination of any of these. The features used to 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. As used herein, including in the claims, "or" as used in a list of items ending with "at least one of" indicates a disjunctive list, such that, for example, a list 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).

[0085] Computer readable medium includes both computer storage medium and communication medium, and the communication medium includes any medium that promotes the computer program to be transferred from one place to another. Storage medium can be any available medium that can be accessed by a general or special computer. As an example and not limitation, computer readable medium can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, disk storage or other disk storage device, or can be used for carrying or storing desired program code unit in the form of instruction or data structure and any other medium that can be accessed by a general or special computer or a general or special processor. Moreover, any connection is appropriately referred to as computer readable medium. For example, if software is sent from a website, server or other remote source using coaxial cable, optical cable, twisted pair, digital subscriber line (DSL) or wireless technology (for example, infrared, radio and microwave), coaxial cable, optical cable, twisted pair, DSL or wireless technology such as infrared, radio and microwave are included in the definition of medium. As used herein, disk and dish include compact disc (CD), laser disc, optical disc, digital versatile disc (DVD), floppy disk and blue-ray disc, wherein the disk usually copies data magnetically, and the dish optically copies data with laser. Combinations of the above are also included within the scope of computer-readable media.

[0086] The detailed description set forth below in conjunction with the accompanying drawings is intended as a description of various configurations and is not intended to represent the only configuration in which the concepts described herein may be practiced. The detailed description includes specific details to provide a thorough understanding of the various concepts. However, it will be apparent to those skilled in the art that these concepts may be practiced without these specific details. In some cases, well-known structures and components are shown in block diagram form to avoid obscuring these concepts.

[0087] Several aspects of telecommunications systems are also presented with reference to various apparatuses and methods. These apparatuses and methods are described in the detailed description and illustrated in the accompanying drawings by various blocks, components, circuits, processes, algorithms, etc. (hereinafter collectively referred to as "elements"). These elements can be implemented using electronic hardware, computer software, or any combination thereof. Whether these elements are implemented in hardware or software depends on the specific application and the design constraints imposed on the overall system.

[0088] As an example, an element, any part of an element, or any combination of multiple elements can be implemented with a "processing system" comprising one or more processors. Examples of processors include microprocessors, microcontrollers, image processing units (GPUs), central processing units (CPUs), application processors, digital signal processors (DSPs), reduced instruction set computing (RISC) processors, systems on chip (SoCs), baseband processors, field programmable gate arrays (FPGAs), programmable logic devices (PLDs), state machines, gating logic, discrete hardware circuits, and other suitable hardware configured to perform the various functions described throughout this disclosure. One or more processors in a processing system can execute software. Software should be broadly interpreted as meaning instructions, instruction sets, codes, code segments, program codes, programs, subroutines, software components, applications, software applications, software packages, routines, subroutines, objects, executable programs, threads of execution, processes, functions, etc., regardless of whether they are referred to as software, firmware, middleware, microcode, hardware description languages, or other.

[0089] It should be noted that the techniques described herein can be used in various wireless communication networks, such as CDMA, TDMA, FDMA, OFDMA, SC-FDMA, and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement radio technologies such as CDMA2000 and 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 radio technologies such as Ultra Mobile Broadband (UMB), Evolved UTRA (E-UTRA), IEEE 902.11 (Wi-Fi), IEEE 902.16 (WiMAX), IEEE 902.20, Flash OFDM™, and the like. 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 versions of UMTS 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 above systems and radio technologies as well as other systems and radio technologies, including cellular (e.g., LTE) communications on shared radio spectrum bands. However, the description below describes LTE / LTE-A and / or 5G New Radio (NR) systems for example purposes, and LTE or 5G NR terminology is used in much of the description below, but these techniques may be applied beyond LTE / LTE / A and 5G NR applications, for example, to other next generation communication systems).

[0090] The previous description of the present disclosure is provided to enable those skilled in the art to make or use the present disclosure. Various modifications to the present disclosure will be 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 present disclosure. Furthermore, although elements of the described aspects and / or embodiments may be described or claimed in the singular, the plural may be considered unless a limitation to the singular is explicitly stated. Furthermore, unless otherwise stated, all or a portion of any aspect and / or embodiment may be used together with all or a portion of any other aspect and / or embodiment. Therefore, the present disclosure is not limited to the examples and designs described herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for wireless communication, comprising: establishing, at a base station, communication with a user equipment (UE), wherein the UE is a half-duplex device lacking a duplexer; generating configuration information for the UE to use for bidirectional communication by allocating at least an anchor carrier for one or both of downlink communication and uplink communication and a supplemental uplink (SUL) carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in at least one of a time division duplex (TDD) band or a frequency division duplex (FDD) band; and sending the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink communication and downlink communication in one or both of the anchor carrier and the SUL carrier based on the configuration information, The generating of configuration information for the UE to use for bidirectional communication includes: A guard period for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier is determined based on the configuration information.

2. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the SUL carrier or the TDD in FR1.

3. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and An uplink transmission is configured on the SUL carrier in the FDD frequency band of FR1.

4. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the SUL carrier of FR1 or the TDD frequency band of FR2.

5. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the FDD frequency band or the TDD frequency band of the FR2.

6. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD frequency band of frequency range 2 (FR2) or the TDD frequency band of frequency range 1 (FR1), wherein the FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the TDD frequency band of the FR1 or the FR2.

7. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Uplink transmission is configured on an uplink carrier of the FDD frequency band in FR1 or the SUL carrier in FR1.

8. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: The uplink bandwidth part (BWP) is configured based on downlink control information (DCI) sent on a downlink carrier of the TDD frequency band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD frequency band in FR1, wherein FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

9. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: configuring an uplink bandwidth part (BWP) using radio resource control (RRC) signaling on the downlink carrier, wherein the RRC is dedicated to the UE or to a group of UEs, and The RRC signaling is sent in the TDD band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD band in FR1, wherein the FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

10. The method according to claim 1, wherein Generating the configuration information for the UE to use for bidirectional communication further includes: A protection position for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier is determined based on the configuration information.

11. The method according to claim 1, wherein The guard period of Nμ symbols for both uplink to downlink (UL to DL) switching and downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP.

12. The method according to claim 1, wherein The guard period of Nμ symbols for downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP, and The guard period for uplink to downlink (UL to DL) switching is Nμ symbols minus a delta (Δ) value, wherein the delta (Δ) value is greater than zero and less than Nμ symbols.

13. The method according to claim 10, wherein: Determining the protection position when the UE performs handover includes: When the UE is to perform downlink-to-uplink (DL-to-UP) handover, the guard position is configured on an uplink carrier of the TDD frequency band.

14. The method according to claim 10, wherein: Determining the protection position when the UE performs handover includes: When the UE performs downlink-to-uplink (DL-to-UL) switching, the guard position is configured on a downlink carrier or an uplink carrier when the uplink transmission is on the FDD frequency band.

15. The method according to claim 10, wherein Determining the protection position when the UE performs handover includes: When the UE performs UL-to-DL switching, the guard position is configured on a downlink carrier when the downlink transmission is on the TDD frequency band.

16. The method according to claim 10, wherein Determining the protection position when the UE performs handover includes: When the UE performs UL-to-DL switching, the guard position is configured on a downlink carrier or an uplink carrier when the downlink transmission is on the FDD frequency band.

17. The method according to claim 1, further comprising: At the base station, repeated transmissions are received from the UE over a plurality of time slots, wherein the repeated transmissions are in one or both of a normal uplink (NUL) carrier or the SUL carrier.

18. The method according to claim 17, further comprising: detecting an interruption of the repeated transmission from the UE; as well as The restarted repeated transmission is received from the UE on a new component carrier.

19. The method according to claim 17, further comprising: detecting an interruption of the repeated transmission from the UE; as well as A portion of the interrupted repeated transmission is received from the UE on a new component carrier.

20. The method of claim 17, further comprising: An interruption of the repeated transmission from the UE is detected, wherein the UE abandons transmission of a remainder of the interrupted repeated transmission.

21. An apparatus for wireless communication, comprising: one or more memories configured to store instructions; one or more processors communicatively coupled to the one or more memories, the one or more processors configured to execute the instructions to: establishing, at a base station, communication with a user equipment (UE), wherein the UE is a half-duplex device lacking a duplexer; generating configuration information for the UE to use for bidirectional communication by allocating at least an anchor carrier for one or both of downlink communication and uplink communication and a supplemental uplink (SUL) carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in at least one of a time division duplex (TDD) band or a frequency division duplex (FDD) band; and sending the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink communication and downlink communication in one or both of an anchor carrier and a SUL carrier based on the configuration information, In order to generate configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: A guard period for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier is determined based on the configuration information.

22. The device according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the SUL carrier or the TDD in FR1.

23. The device according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and An uplink transmission is configured on the SUL carrier in the FDD frequency band of FR1.

24. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the SUL carrier of FR1 or the TDD frequency band of FR2.

25. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the FDD frequency band or the TDD frequency band of the FR2.

26. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD frequency band of frequency range 2 (FR2) or the TDD frequency band of frequency range 1 (FR1), wherein the FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the TDD frequency band of the FR1 or the FR2.

27. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Uplink transmission is configured on an uplink carrier of the FDD frequency band in FR1 or the SUL carrier in FR1.

28. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: The uplink bandwidth part (BWP) is configured based on downlink control information (DCI) sent on a downlink carrier of the TDD frequency band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD frequency band in FR1, wherein FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

29. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: configuring an uplink bandwidth part (BWP) using radio resource control (RRC) signaling on the downlink carrier, wherein the RRC is dedicated to the UE or to a group of UEs, and The RRC signaling is sent in the TDD band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD band in FR1, wherein the FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

30. The apparatus according to claim 21, wherein To generate the configuration information for the UE to use for bidirectional communication, the one or more processors are further configured to execute the instructions to: A protection position for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier is determined based on the configuration information.

31. The apparatus according to claim 21, wherein The guard period of Nμ symbols for both uplink to downlink (UL to DL) switching and downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP.

32. The apparatus according to claim 21, wherein The guard period of Nμ symbols for downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP, and The guard period for uplink to downlink (UL to DL) switching is Nμ symbols minus a delta (Δ) value, wherein the delta (Δ) value is greater than zero and less than Nμ symbols.

33. The apparatus according to claim 30, wherein To determine the protection position for when the UE performs handover, the one or more processors are further configured to execute the instructions to: When the UE is to perform downlink-to-uplink (DL-to-UP) handover, the guard position is configured on an uplink carrier of the TDD frequency band.

34. The apparatus according to claim 30, wherein To determine the protection position for when the UE performs handover, the one or more processors are further configured to execute the instructions to: When the UE performs downlink-to-uplink (DL-to-UL) switching, the guard position is configured on a downlink carrier or an uplink carrier when the uplink transmission is on the FDD frequency band.

35. The apparatus of claim 30, wherein: To determine the protection position for when the UE performs handover, the one or more processors are further configured to execute the instructions to: When the UE performs UL-to-DL switching, the guard position is configured on a downlink carrier when the downlink transmission is on the TDD frequency band.

36. The apparatus of claim 30, wherein: To determine the protection position for when the UE performs handover, the one or more processors are further configured to execute the instructions to: When the UE performs UL-to-DL switching, the guard position is configured on a downlink carrier or an uplink carrier when the downlink transmission is on the FDD frequency band.

37. The apparatus of claim 21, wherein: The one or more processors are further configured to execute the instructions to: At the base station, repeated transmissions are received from the UE over a plurality of time slots, wherein the repeated transmissions are in one or both of a normal uplink (NUL) carrier or the SUL carrier.

38. The apparatus according to claim 37, wherein The one or more processors are further configured to execute the instructions to: detecting an interruption of the repeated transmission from the UE; and The restarted repeated transmission is received from the UE on a new component carrier.

39. The apparatus of claim 37, wherein: The one or more processors are further configured to execute the instructions to: detecting an interruption of the repeated transmission from the UE; and A portion of the interrupted repeated transmission is received from the UE on a new component carrier.

40. The apparatus of claim 37, wherein: The one or more processors are further configured to execute the instructions to: An interruption of the repeated transmission from the UE is detected, wherein the UE abandons transmission of a remainder of the interrupted repeated transmission.

41. A non-transitory computer-readable medium storing instructions executable by a processor for wireless communication, comprising instructions for: Establishing communication with a user equipment (UE) at a base station, wherein: The UE is a half-duplex device lacking a duplexer; generating configuration information for the UE to use for bidirectional communication by allocating at least an anchor carrier for one or both of downlink communication and uplink communication and a supplemental uplink (SUL) carrier for uplink communication, wherein the anchor carrier and the SUL carrier are in at least one of a time division duplex (TDD) band or a frequency division duplex (FDD) band; and sending the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink communication and downlink communication in one or both of an anchor carrier and a SUL carrier based on the configuration information, The instructions for generating configuration information for the UE to use for bidirectional communication further include instructions for the following operations: A guard period for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier is determined based on the configuration information.

42. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the SUL carrier or the TDD in FR1.

43. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and An uplink transmission is configured on the SUL carrier in the FDD frequency band of FR1.

44. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the SUL carrier of FR1 or the TDD frequency band of FR2.

45. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the FDD frequency band or the TDD frequency band of the FR2.

46. ​​The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD frequency band of frequency range 2 (FR2) or the TDD frequency band of frequency range 1 (FR1), wherein the FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Uplink transmission is configured on the TDD frequency band of the FR1 or the FR2.

47. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Uplink transmission is configured on an uplink carrier of the FDD frequency band in FR1 or the SUL carrier in FR1.

48. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: The uplink bandwidth part (BWP) is configured based on downlink control information (DCI) sent on a downlink carrier of the TDD frequency band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD frequency band in FR1, wherein FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

49. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: configuring an uplink bandwidth part (BWP) using radio resource control (RRC) signaling on the downlink carrier, wherein the RRC is dedicated to the UE or to a group of UEs, and The RRC signaling is sent in the TDD band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD band in FR1, wherein the FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

50. The non-transitory computer readable medium of claim 41, wherein: The instructions for generating the configuration information for the UE to use for bidirectional communication further include instructions for: A protection position for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier is determined based on the configuration information.

51. The non-transitory computer readable medium of claim 41, wherein: The guard period of Nμ symbols for both uplink to downlink (UL to DL) switching and downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP.

52. The non-transitory computer readable medium of claim 41, wherein: The guard period of Nμ symbols for downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP, and The guard period for uplink to downlink (UL to DL) switching is Nμ symbols minus a delta (Δ) value, wherein the delta (Δ) value is greater than zero and less than Nμ symbols.

53. The non-transitory computer readable medium of claim 50, wherein: The instructions for determining the protection position for when the UE performs handover further include instructions for: When the UE is to perform downlink-to-uplink (DL-to-UP) handover, the guard position is configured on an uplink carrier of the TDD frequency band.

54. The non-transitory computer readable medium of claim 50, wherein: The instructions for determining the protection position for when the UE performs handover further include instructions for: When the UE performs downlink-to-uplink (DL-to-UL) switching, the guard position is configured on a downlink carrier or an uplink carrier when the uplink transmission is on the FDD frequency band.

55. The non-transitory computer readable medium of claim 50, wherein: The instructions for determining the protection position for when the UE performs handover further include instructions for: When the UE performs UL-to-DL switching, the guard position is configured on a downlink carrier when the downlink transmission is on the TDD frequency band.

56. The non-transitory computer readable medium of claim 50, wherein: The instructions for determining the protection position for when the UE performs handover further include instructions for: When the UE performs UL-to-DL switching, the guard position is configured on a downlink carrier or an uplink carrier when the downlink transmission is on the FDD frequency band.

57. The non-transitory computer-readable medium of claim 41 , further comprising instructions for: At the base station, repeated transmissions from the UE are received over a plurality of time slots, wherein: The repeated transmission is in one or both of a normal uplink (NUL) carrier or the SUL carrier.

58. The non-transitory computer-readable medium of claim 57, further comprising instructions for: detecting an interruption of the repeated transmission from the UE; and The restarted repeated transmission is received from the UE on a new component carrier.

59. The non-transitory computer-readable medium of claim 57, further comprising instructions for: detecting an interruption of the repeated transmission from the UE; and A portion of the interrupted repeated transmission is received from the UE on a new component carrier.

60. The non-transitory computer-readable medium of claim 57, further comprising instructions for: detecting an interruption of the repeated transmission from the UE, wherein The UE abandons transmission of the remaining part of the interrupted repeated transmission.

61. An apparatus for wireless communication, comprising: means for establishing, at a base station, communication with a user equipment (UE), wherein the UE is a half-duplex device lacking a duplexer; means for generating configuration information for the UE to use for bidirectional communication by allocating at least an anchor carrier for one or both of downlink and uplink communications and a supplemental uplink (SUL) carrier for uplink communications, wherein the anchor carrier and the SUL carrier are in at least one of a time division duplex (TDD) band or a frequency division duplex (FDD) band; and means for sending the configuration information for the bidirectional communication to the UE, wherein the UE switches between uplink and downlink communication in one or both of an anchor carrier and a SUL carrier based on the configuration information, The unit for generating configuration information for the UE to use for bidirectional communication includes: Means for determining, based on the configuration information, a guard period for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier.

62. The apparatus according to claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and means for configuring uplink transmission on the SUL carrier or the TDD in FR1.

63. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and means for configuring uplink transmission on the SUL carrier in the FDD frequency band of FR1.

64. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of Frequency Range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and Means for configuring uplink transmission on the SUL carrier in FR1 or the TDD frequency band in FR2.

65. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of Frequency Range 2 (FR2), wherein FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and The invention also provides a unit for configuring uplink transmission on the FDD frequency band or the TDD frequency band of the FR2.

66. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring a downlink transmission from the base station to the UE on the anchor carrier in the TDD band of frequency range 2 (FR2) or the TDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum and FR2 includes a frequency range of 24.25 GHz - 52.6 GHz of an electromagnetic spectrum; and means for configuring uplink transmission on the TDD frequency band of the FR1 or the FR2.

67. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring a downlink transmission from the base station to the UE on the anchor carrier in the FDD band of frequency range 1 (FR1), wherein FR1 includes a frequency range of 410 MHz - 7.125 GHz of an electromagnetic spectrum; and Means for configuring uplink transmission on the uplink carrier of the FDD frequency band in FR1 or the SUL carrier in FR1.

68. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: A unit for configuring an uplink bandwidth part (BWP) based on downlink control information (DCI) sent on a downlink carrier of the TDD frequency band in one of frequency range 1 (FR1) or frequency range 2 (FR2), wherein the FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

69. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: means for configuring an uplink bandwidth part (BWP) using radio resource control (RRC) signaling on the downlink carrier, wherein the RRC is dedicated to the UE or to a group of UEs, and The RRC signaling is sent in the TDD band in one of frequency range 1 (FR1) or frequency range 2 (FR2) or the FDD band in FR1, wherein the FR1 includes a frequency range of 410 MHz–7.125 GHz of the electromagnetic spectrum and the FR2 includes a frequency range of 24.25 GHz–52.6 GHz of the electromagnetic spectrum.

70. The apparatus of claim 61, wherein The unit for generating the configuration information for the UE to use for bidirectional communication further includes: Means for determining, based on the configuration information, a protection position for when the UE switches between the uplink communication and the downlink communication in one or both of the anchor carrier and the SUL carrier.

71. The apparatus of claim 61, wherein The guard period of Nμ symbols for both uplink to downlink (UL to DL) switching and downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP.

72. The apparatus of claim 61, wherein The guard period of Nμ symbols for downlink to uplink (DL to UP) switching is determined based on a function of the active downlink bandwidth part (BWP) and the minimum subcarrier spacing (SCS) of the active uplink BWP, and The guard period for uplink to downlink (UL to DL) switching is Nμ symbols minus a delta (Δ) value, wherein the delta (Δ) value is greater than zero and less than Nμ symbols.

73. The apparatus of claim 70, wherein: The unit for determining the protection position when the UE performs handover includes: The invention also provides a unit for configuring the guard position on the uplink carrier of the TDD frequency band when the UE is to perform a downlink to uplink (DL to UP) handover.

74. The apparatus of claim 70, wherein The unit for determining the protection position when the UE performs handover includes: The invention also provides a unit for configuring the guard position on a downlink carrier or an uplink carrier when the uplink transmission is on the FDD frequency band when the UE performs a downlink to uplink (DL to UL) handover.

75. The apparatus of claim 70, wherein The unit for determining the protection position when the UE performs handover includes: means for configuring the guard position on a downlink carrier when the UE performs UL to DL switching and when the downlink transmission is on the TDD frequency band.

76. The apparatus of claim 70, wherein The unit for determining the protection position when the UE performs handover includes: The method further includes configuring a guard position on a downlink carrier or an uplink carrier when the UE performs a UL to DL handover and when the downlink transmission is on the FDD frequency band.

77. The apparatus of claim 61 , further comprising: Means are provided for receiving, at the base station, repeated transmissions from the UE over a plurality of time slots, wherein the repeated transmissions are in one or both of a normal uplink (NUL) carrier or the SUL carrier.

78. The apparatus of claim 77, further comprising: means for detecting an interruption of the repeated transmission from the UE; as well as Means for receiving the restarted repeated transmission from the UE on a new component carrier.

79. The apparatus of claim 77, further comprising: means for detecting an interruption of the repeated transmission from the UE; as well as Means for receiving a portion of the repeated transmission from the UE that was interrupted on a new component carrier.

80. The apparatus of claim 77, further comprising: Means for detecting an interruption of the repeated transmission from the UE, wherein the UE aborts transmission of a remainder of the interrupted repeated transmission.

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