H04L5/0019

Method, system and devices for reducing interferences in OFDMA wireless communication networks
09923703 · 2018-03-20 · ·

A system and method for reducing interferences in OFDM networks comprising generating (31) a set of pseudo-random coordination patterns {k.sub.i.sup.n; i=0, . . . , N1; n=0, . . . , M1}, wherein k.sub.i.sup.n are integers from 0 to M1, M is the number of calls in a coordination cluster, N is the number of subcarriers, n is a cell identifier within the coordination cluster, and k.sub.i.sup.nk.sub.i.sup.mnm, i=0, . . . , N1; generating a randomizing pattern common to all cells within the coordination cluster, comprising an invertible transformation in the time domain of the complex symbols for each subcarrier; spreading (32) the complex symbols over M TTIs: b [ i , m ] = M .Math. m = 0 T - 1 a [ i , n ] exp [ - j2 ( Mn + k i ) .Math. m / ( M .Math. T )

METHODS AND DEVICES FOR FREQUENCY SHIFT DETECTION

A method and mobile communication device adapted for frequency synchronization with a radio access network (RAN) based on frequency shift detection in a first signal received at the mobile communication device, including: offsetting the first signal's frequency by a first value extracted from a second signal received at the mobile communication device; generating a replica of the first signal from a second value extracted from a third signal received at the mobile communication device; multiplying a component of the offset first signal with the replica to generate a product; transforming the product into a frequency-domain signal; and detecting a peak in the frequency-domain signal to determine the frequency shift.

NON-ORTHOGONAL COVER CODES FOR CO-CHANNEL NETWORK ISOLATION
20180054333 · 2018-02-22 · ·

Various communication systems may benefit from identification of devices or systems using a channel. For example, certain communication systems may benefit from non-orthogonal cover code for co-channel network isolation. A method can include deciding a cover code index. The method can also include signaling the cover code index to a user equipment. The cover code index can correspond to a non-orthogonal cover code that is created in a network-specific manner.

Method and apparatus for transmitting uplink control information in a wireless communication system

A method and apparatus for transmitting control information are discussed. The method can include generating uplink control information (UCI) and transmitting the UCI through an physical uplink control channel (PUCCH) in a subframe, wherein when the subframe is configured for transmission of a scheduling request (SR) and when transmission of a hybrid automatic repeat request (HARD)-acknowledgement (ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a number of HARQ-ACK information bits and a SR bit. A value of the SR bit can be determined by whether or not the subframe is configured for a scheduling request.

METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM

The present invention provides a method and apparatus for transmitting uplink control information (UCI) by user equipment in a wireless communication. The user equipment performs channel coding on information bits of the UCI to generate encoding information bits; performs modulation on the thus generated encoding information bits to generate complex modulation symbols; spreads the complex modulation symbols block-wise to a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols based on an orthogonal sequence; and transmits the spread complex modulation symbols to a base station.

Method and apparatus for transmitting uplink control information in a wireless communication system

The present invention provides a method and apparatus for transmitting uplink control information (UCI) by user equipment in a wireless communication. The user equipment performs channel coding on information bits of the UCI to generate encoding information bits; performs modulation on the thus generated encoding information bits to generate complex modulation symbols; spreads the complex modulation symbols block-wise to a plurality of single carrier-frequency division multiple access (SC-FDMA) symbols based on an orthogonal sequence; and transmits the spread complex modulation symbols to a base station.

METHOD AND APPARATUS FOR TRANSMITTING UPLINK CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEM

A method and apparatus for transmitting control information are discussed. The method can include generating uplink control information (UCI) and transmitting the UCI through an physical uplink control channel (PUCCH) in a subframe, wherein when the subframe is configured for transmission of a scheduling request (SR) and when transmission of a hybrid automatic repeat request (HARD)-acknowledgement (ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a number of HARQ-ACK information bits and a SR bit. A value of the SR bit can be determined by whether or not the subframe is configured for a scheduling request.

Method and apparatus for transmitting and receiving control information to randomize inter-cell interference in a mobile communication system

Methods and apparatuses are provided for transmitting and receiving information. A User Equipment (UE) identifies first information for a cyclic shift value, transmitted from a Node B. The UE identifies second information for the cyclic shift value, transmitted from the Node B. The UE obtains a sequence based on a Zadoff-Chu sequence and the cyclic shift value defined based on the first information and the second information. The UE transmits the sequence in a Single Carrier-Frequency Division Multiple Access (SC-FDMA) symbol to the Node B. The SC-FDMA symbol is predefined among a plurality of SC-FDMA symbols in a slot of a subframe.

Method and apparatus for transmitting uplink control information in a wireless communication system

A method and apparatus for transmitting control information are discussed. The method can include generating uplink control information (UCI) and transmitting the UCI through an physical uplink control channel (PUCCH) in a subframe, wherein when the subframe is configured for transmission of a scheduling request (SR) and when transmission of a hybrid automatic repeat request (HARQ)-acknowledgement (ACK) coincides with the subframe, transmission power of the PUCCH is determined based on a number of HARQ-ACK information bits and a SR bit. A value of the SR bit can be determined by whether or not the subframe is configured for a scheduling request.

METHODS OF USE OF CYCLIC AMIDE DERIVATIVES TO TREAT SCHIZOPHRENIA

Disclosed herein are compositions and methods for treating schizophrenia and symptoms of schizophrenia, including negative symptoms of schizophrenia.