Abstract: Aspects of the present disclosure relate to wireless communication. In aspects, a base station may determine one or more signaling parameters to be used to transmit one or more reference signals that identify the base station in association with remote interference management, wherein the one or more signaling parameters include at least one of: multiple time periods in which the one or more reference signals are to be transmitted; one or more mini-bands, within one or more sub-bands, in which the one or more reference signals are to be transmitted; one or more scrambling codes, selected from a pool of scrambling codes, to be used to scramble the one or more reference signals; or a combination thereof. The base station may transmit the one or more reference signals using the one or more signaling parameters to identify the base station in association with remote interference management. Other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may detect interference, in a remote interference management (RIM) scenario, in a set of sub-bands of a plurality of sub-bands of a bandwidth portion. The base station may transmit, to identify the set of sub-bands in which interference is detected, a set of reference signals configured to indicate the set of sub-bands in which the interference is detected. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may determine that at least one condition, of a plurality of conditions, is satisfied with regard to at least one other base station; and perform at least one remote interference management (RIM) operation, the at least one RIM operation selected based at least in part on the at least one condition. In some aspects, a base station may receive an indication regarding interference, the indication regarding interference indicating that at least one condition, of a plurality of conditions, is satisfied with regard to the base station or at least one other base station; and perform at least one RIM operation, the at least one RIM operation selected based at least in part on the at least one condition or the indication regarding interference. Numerous other aspects are provided.

Abstract: A base station (BS) may determine (estimate) a preparation time for at least one uplink (UL) transmission by a user equipment (UE) on at least one radio frequency (RF) carrier. The BS may use the preparation time to ensure that the BS sends a grant for the at least one transmission to the UE a sufficient amount of time before the at least one transmission is scheduled to occur to give the UE sufficient time to conduct the at least one UL transmission. In some examples, the BS determines the preparation time based on adjusting an uplink preparation time according to a defined value. In some examples, the BS determines the preparation time based on a subcarrier spacing (SCS) index. The BS may select the SCS index used to determine the preparation time from smallest of the SCS indexes configured for the different RF carriers.

Abstract: Methods, systems, and devices for wireless communications are described. One or more multiple access-capable user equipments (UEs) may be grouped together for transmitting uplink multiple access communications to a base station, where the UEs may be assigned to the group based on similar capabilities or service requirements. The UE may receive configuration information based at least in part on the group to which the UE has been assigned. When assigned to a group, the UEs may also receive a group-specific scrambling code for the uplink multiple access communications, a group-specific power control for the uplink multiple access communications, time and frequency resources to be used for the uplink multiple access communications specific to the group, or a combination thereof. Additionally, the specific time and frequency resources may be defined by multiple access resource units.

Abstract: The described techniques relate to improved methods, systems, devices, and apparatuses that support interference mitigation for remote devices. A first wireless device (e.g., a base station) may detect remote interference with its communications caused by a second wireless device (e. g., a second, remote base station) based on, for example, a measured interference over thermal noise level exceeding a threshold. The first wireless device may identify a set of time-frequency resources for remote interference reference signals and a data transmission for a user equipment (UE) that is in communication with the first wireless device. The first wireless device may transmit a remote interference signal to a second wireless device (e. g., a second base station) via the set of time-frequency resources. The first wireless device may further signal a resource allocation to the UE for the UE to use for transmitting uplink transmissions to the first wireless device.

Abstract: Aspects are provided allowing a first base station to distinguish between cross-link interference and remote interference caused to a second base station and to apply different mitigation mechanisms based on the type of interference. A UE receives from a second base station a reference signal based on a reference signal identifier that indicates a location of the second base station that is experiencing interference from the first base station. The UE sends to the first base station an indication of the reference signal received from the second base station. The first base station receives from the UE the indication of the reference signal from the second base station based on the reference signal identifier. The first base station applies a mitigation mechanism based on whether the reference signal identifier indicates that the second base station is a remote base station or a neighbor base station.

Abstract: Various aspects related to a platooning group in a V2V and/or V2X network are described. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus maybe a first UE configured to transmit a first message to announce an existence of the platooning group. In one configuration, the first UE may receive, in response to the first message, a second message indicating a request to join the platooning group from a second UE. The first UE may allow or deny the second UE to join the platooning group based on the second message. In another aspect, the apparatus maybe a first UE configured to receive a first message indicating an existence of a platooning group. The first UE may be configured to decode a portion of the first message, and determine whether the platooning group is a private group based on the decoding.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive information identifying an offset between a start of a frame on a first component carrier and a start of a frame on a second component carrier, wherein the first component carrier is one of a primary cell (PCell) or a secondary cell (SCell), and wherein the second component carrier is the other of the PCell or the SCell; determine that a slot on the first component carrier is aligned with a slot on the second component carrier; identify the slot on the second component carrier in accordance with the offset; and communicate on the first component carrier or the second component carrier based at least in part on the start of the slot on the second component carrier. Numerous other aspects are provided.

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may apply one or more spreading sequences to a set of modulation symbols of a data set to generate spread modulation symbols; apply a scrambling sequence to the spread modulation symbols to generate a set of scrambled symbols; and transmit a waveform based at least in part on the set of scrambled symbols. Numerous other aspects are provided.

Abstract: Methods, systems, and devices for wireless communications are described. In some systems (e.g., non-orthogonal multiple access (NOMA) systems), a base station may serve a large number of user equipments (UEs) on the uplink. To improve detectability for these uplink transmissions (e.g., if reference signals are not available for the transmissions), the UEs may implement parallel transmissions of preambles with uplink data. A UE may split the uplink data into one or more data layers, and may select one or more preamble layers to transmit superposed with the data layers. These preambles may be sequences known to both the UE and the base station to aid in detectability. The UE may assign different signature sequences to each of these layers based on cross-correlation values (e.g., assigning sequences with higher cross-correlation values to the data layers for improved detectability), and may scramble the layers into a single shared signal for transmission.

Abstract: Sequence selection techniques for Non-Orthogonal Multiple Access (NOMA) are provided. A User Equipment (UE) sends a request to a base station, the request indicating that the UE is to conduct at least one uplink transmission. The UE receives, in response to the request, an indicator of an expected system load, a value of the indicator including a total number of sequences expected to be used at one time for uplink transmissions in the system. The UE detects that at least two different pairs of sequences in a configured set of sequences have different cross correlation values, the sequences in the set configured for scrambling uplink transmissions. The UE selects, in response to the detecting and based on the indicator, at least one sequence with an improved cross correlation with at least one other sequence the at least one sequence and the at least one other sequence to be used for scrambling uplink transmissions within the system.

Abstract: A reference signal periodically transmitted by a base station in a wireless network can have certain proprietary properties to help prevent detection and utilization of the signal for unauthorized positioning of mobile devices. More specifically, a network node can obscure and introduce time-variation in mapping between positioning signals and a corresponding physical base stations. The network node may also introduce time variations in fields of a base station almanac (BSA) provided to subscribing user equipments (UEs). The information transmitted to the subscribing UEs may be encrypted.

Abstract: A method for maintaining time and frequency synchronization when a micro-cell base station is in an off state, a system for maintaining time and frequency synchronization when a micro-cell base station is in an off state, and a terminal are provided. The method includes: detecting a signal sent by a macro-cell base station or the micro-cell base station in a subframe at a predefined position when the micro-cell base station is in an off state; and performing an operation for maintaining time and frequency synchronization with the micro-cell base station based on the signal sent in the subframe at the predefined position.

Abstract: A co-frequency full-duplex antenna structure includes a receiving antenna, a transmitting antenna for transmitting a signal of a predetermined wavelength, and a signal reflection apparatus for reflecting the signal transmitted by the transmitting antenna, so as to realize that a path difference between a reflected signal formed when the signal transmitted by the transmitting antenna reaches the receiving antenna after being reflected and a direct signal formed when the signal transmitted by the transmitting antenna directly reaches the receiving antenna is an odd number of times as much as one half of the predetermined wavelength.

Abstract: An eNodeB-based communication method and communication system include dividing a plurality of eNodeBs into at least one eNodeB cluster; when a terminal is moving within any particular eNodeB cluster of the at least one eNodeB cluster, the terminal obtains identification information of the particular eNodeB cluster, and determines an eNodeB associated with the terminal from among the particular eNodeB cluster; and a specified eNodeB of the particular eNodeB cluster schedules the eNodeB associated with the terminal to provide communication services for the terminal.

Abstract: A power control method and a power control device for terminal device-to-device communications, and a parameter transmission method includes: determining at least one terminal which is outside a base station coverage range and interferes with a base station; acquiring, by the base station, signal strength information about a measurement signal sent by each terminal of the at least one terminal when the measurement signal reaches the base station, and configuring a corresponding power control parameter for each terminal according to the signal strength information; and sending, by the base station, the corresponding power control parameter of each terminal to a synchronization source terminal within the base station coverage range corresponding to each terminal, so as to send the power control parameter to a corresponding terminal by the synchronization source terminal, so that each terminal conducts power control using the corresponding power control parameter.

Abstract: Provided are a resource allocation method and a resource allocation device, which are used for a frequency division duplexing system. The resource allocation method comprises: setting a shared frequency band; and according to resource demands for an original uplink frequency band and an original downlink frequency band in a network service, allocating the shared frequency band to the original uplink frequency band and/or the original downlink frequency band.

Abstract: Methods and systems for determining the duration of a rapid on/off state include: when a micro-cell base station is a single sub frame-level on/off micro-cell base station, determining in real-time the on/off state of the micro-cell base station in order to determine the duration of the state of the micro-cell base station; and when the micro-cell base station is a multiple sub frame-level on/off micro-cell base station, by means or receiving a notification message sent by the micro-cell base station or a macro-cell base station, determining the duration of the state of the micro-cell base station.

Abstract: Methods and devices for reporting and issuing a band extension capability are provided. A terminal side receives terminal capability query information from a network side, determines band interval lists to which each band supported by the terminal side belongs, and reports the supported bands through cells corresponding to the band interval lists to which each band belongs; and the network side determines band interval lists to which each band supported by the network side belongs when issuing a band capability supported by the network side, and issues the supported bands through cells corresponding to the band interval lists to which each band belongs. By the solutions of the disclosure, the bands belonging to different band interval lists can be reported and issued through different cells, and the problem of limitations to the number of the bands during the reporting and issuing of the bands is solved.