In certain embodiments, a method includes, by a first mobile device, obtaining a data packet and determining, from a first set of resources, control resources for transmitting scheduling information associated with the data packet. The control resources include a physical sidelink control channel (PSCCH). The method includes determining, by the first mobile device from a second set of resources, acknowledgement (ACK)/negative acknowledgement (NACK) resources associated with the data packet and related to the control resources. The scheduling information includes transmission information for transmitting the data packet and an indication of the ACK/NACK resources. The method includes transmitting, by the first mobile device to a second mobile device, the scheduling information on the control resources and the data packet on a set of resources indicated by the transmission information and listening, by the first mobile device, for an ACK/NACK transmitted by the second mobile device on the ACK/NACK resources.

A method and system for the UE and RNC to reduce transmission latency and potentially prevent loss of PDUs upon a MAC-hs layer reset. The RNC generates a radio resource control (RRC) message with a MAC-hs reset indication. The MAC reset indication requires the UE to flush buffers for configured HARQ processes, disassemble MAC protocol data units (PDUs) in the reordering buffers, deliver MAC-d PDUs to a MAC-d layer, and configure the MAC-hs to receive new data.

pa A system and apparatus are disclosed for a method and apparatus for equalizing signals. An apparatus that incorporates teachings of the present disclosure may include, for example, an equalizer having a channel estimation calculator for calculating a time domain channel estimation from a baseband signal, a Fast Fourier Transform processor for translating the time domain channel estimation to a frequency domain channel estimation, a tap weight calculator for calculating a frequency domain tap weight according to the frequency domain channel estimation, an inverse Fast Fourier Transform processor for translating the frequency domain tap weight calculation to a time domain tap weight calculation, and a filter for equalizing the baseband signal according to the time domain tap weight calculation.

A method of joint clustering and precoding and a base station using the same are provided and applicable to a non-orthogonal multiple access (NOMA) system. The method includes: dividing four user equipments into a first cluster and a second cluster each consisting of two user equipments; forming a first cluster signal and a second cluster signal for simultaneous transmission at the base station; establishing a first precoding set and a second precoding set for the first cluster and the second cluster, respectively, by using channel state information between the base station and all the user equipments; selecting a first precoder from the first precoding set and a second precoder from the second precoding set; superposing the first cluster signal multiplied by the first precoder and the second cluster signal multiplied by the second precoder and broadcasting a resulting signal to the user equipments in the first and second cluster.

Systems and methods are disclosed for a CDMA base station management gateway for integrating CDMA into an LTE Evolved Packet Core (EPC) core network. In one embodiment, a system is disclosed, comprising: a base station management gateway situated between a code division multiple access (CDMA) base transceiver station (BTS) and an Evolved Packet Core (EPC) core network, the base station management gateway also situated between an additional base station and the EPC core network, the base station management gateway The method may further comprise: a stateful interworking proxy configured to perform interworking of CDMA signaling to Evolved Universal Mobile Telecommunications System Terrestrial Radio Access (EUTRAN) signaling by using an S2a/S2b interface toward the EPC and an A10/A11 interface towards the CDMA BTS; and a packet routing virtual function configured to enable mobile devices attached to the CDMA BTS to obtain IP connectivity via the EPC core network.

This automatic gain control circuit is provided with a variable gain amplifier for amplifying a received signal, has a small circuit size, and makes it possible to reduce the effect of superimposed external noise input within the frequency bandwidth of a received signal. The automatic gain control circuit supplies the output of the variable gain amplifier to an analog/digital converter and comprises: a frequency selection circuit that is connected to the output of the analog/digital converter and that selects a signal within the frequency bandwidth of a received signal, said signal having a narrower bandwidth than the frequency bandwidth; and a control signal generation circuit that generates a control signal for the variable gain amplifier on the basis of the strength of the signal selected by the frequency selection circuit.

Wireless communications systems and methods related to synchronization signal (SS) transmission coordination among base stations (BSs) and restricted SS measurements at user equipments (UEs) are provided. A first BS transmits a first SS burst in a first SS transmission period of a plurality of SS transmission periods. The first SS transmission period is designated to the first BS. A second SS transmission period of the plurality of SS transmission periods is designated to a second BS. The first SS transmission period and the second SS transmission period are different. The first BS receives, from a UE, a first signal in synchronization with the first SS burst. The first signal includes a SS measurement of the first SS burst.

A wireless communication system has a base station operative to communicate wirelessly with a plurality of customer devices. The base station has a circulator with a first port connected to one or more signal transmission devices, a second port that is connected to one or more antennas, and a third port that is connected to one or more signal reception devices. The circulator communicates transmission signals from the one or more signal transmission devices to the one or more antennas, and communicates received signals from the one or more antennas to the one or more signal reception devices. The plurality of customers devices have cancellation/separation duplexers or circulators.

A system and apparatus are disclosed for a method and apparatus for equalizing signals. An apparatus that incorporates teachings of the present disclosure may include, for example, an equalizer having a channel estimation calculator for calculating a time domain channel estimation from a baseband signal, a Fast Fourier Transform processor for translating the time domain channel estimation to a frequency domain channel estimation, a tap weight calculator for calculating a frequency domain tap weight according to the frequency domain channel estimation, an inverse Fast Fourier Transform processor for translating the frequency domain tap weight calculation to a time domain tap weight calculation, and a filter for equalizing the baseband signal according to the time domain tap weight calculation.

A method of managing a wireless communication network. The method comprises collecting network performance data from enhanced node Bs (eNBs) by an application executing on a computer system and collecting user equipment (UE) performance data from UEs, where the UE performance data comprises self-location information at the time of a wireless coverage outage experienced by the UEs. The method further comprises, for each eNB, analyzing by the application network performance data associated with the eNB and UE performance data of wireless coverage outages experienced by UEs determined based on their self-location information to have been proximate to the eNB when its wireless coverage outage was experienced, and, based on the analysis of network performance data in combination with UE performance data, taking action to manage the wireless communication network.