Patent application number | Description | Published |
20150087352 | METHOD FOR DETERMINING UPLINK TRANSMISSION POWER - There is provided a method for determining uplink transmission power. The method may performed by a user equipment (UE) and comprise: receiving, by the UE, a value of additional maximum power reduction (A-MPR) from a base station (BS), if the UE is configured to use for uplink transmission a frequency range of 1980 MHz through 2010 MHz or 1920 MHz through 2010 MHz and if another UE which is located in an adjacent BS and is to be protected uses for an uplink transmission a frequency range of 2010 MHz through 2025 MHz; and determining an uplink transmission power by applying the value of A-MPR. | 03-26-2015 |
20150163707 | METHOD OF HANDING OVER UE TO SMALL-SCALE CELL IN MACRO CELL AND ENVIRONMENT IN WHICH SMALL-SCALE CELL COEXISTS - The present invention relates to a method of providing, by a UE served in a small-scale cell, information about surrounding UEs in a wireless communication system in which a macro cell and the small-scale cell coexist. The method can include the steps of: carrying out a handover from the macro cell to the small-scale cell; after completion of the handover, overhearing a signal transmitted by the UE; measuring signal intensities of the surrounding UEs; and, if the signal intensities meet predefined conditions, delivering information about the surrounding UEs to the small-scale cell. | 06-11-2015 |
20150181517 | METHOD AND TERMINAL FOR PERFORMING UP-LINK TRANSMISSION AT REDUCED POWER - The present disclosure provides a method of performing up-link transmission at a reduced power. According to the method, system information may be received from a base station. The system information may include one or more of first information on an operating band and second information on an up-link bandwidth. Also, according to the method, a network signal for an additional power reduction may be received from the base station. Also, according to the method, when an operating band indicated by the first information is within a range of 777 MHz to 787 MHz and a bandwidth indicated by the second information is 5 MHz, namely, 777 MHz to 782 MHz, an additionally required power reduction may be determined in order to decrease interference to the band of an adjacently located public safety network according to the network signal, and up-link transmission at the reduced power may be performed. | 06-25-2015 |
20150189526 | METHOD FOR PERFORMING MEASUREMENT AND TERMINAL - One disclosure of the present specification provides a method for performing a measurement. The method may comprise: receiving, from a serving cell, a first measurement subframe pattern for the serving cell and assistance information on a cell-specific reference signal (CRS) of a first neighboring cell and a second neighboring cell; and receiving, from the serving cell, a second measurement subframe pattern for the first and second neighboring cells. Here, both the serving cell and the first neighboring cell are aggressor cells against a victim cell which is the second neighboring cell, and the received second measurement subframe pattern may be set based on an almost blank subframe (ABS) pattern, when a CRS of the serving cell collides with the CRS of the second neighboring cell but the CRS of the first neighboring cell does not collide with the CRS of the second neighboring cell. | 07-02-2015 |
20150207611 | RECEIVING METHOD FOR INTERFERENCE CANCELLATION, AND TERMINAL - One embodiment of the present specification discloses a receiving method. The receiving method comprises the steps of: cancelling interference caused by a cell-specific reference signal (CRS) of a neighboring cell from a bit string received from a serving cell; determining weight to be applied to the bit string; applying the determined weight to the bit string; and decoding the bit string to which the weight is applied. In the step of determining the weight, it is possible to determine the weight to be applied depending on whether or not CRSs collide with each other between the serving cell and the neighboring cell that causes the interference. | 07-23-2015 |
20150237517 | METHOD AND TERMINAL FOR MEASURING INTERFERENCE IN HETEROGENEOUS NETWORK HAVING CO-EXISTING MACRO CELL AND SMALL-SCALE CELL - The present invention relates to a method by which a terminal measures interference in a wireless communication system in which a macro cell and a small-scale cell coexist. The interference measurement method can include a step in which a terminal receives setting information for interference measurement (IM). Here, the setting information for the IM includes at least two settings, each setting is defined in a resource element (RE) unit, the first of the two settings is for measuring interference from other neighboring cells besides the macro and small-scale cells, and the second is for measuring interference from the macro cell. The interference measurement method may further include: measuring interference by using setting information for the IM; and feeding back channel quality obtained by using the measured interference value. | 08-20-2015 |
20150245302 | METHOD AND TERMINAL FOR TRANSMITTING UPLINK SIGNAL BY REDUCED POWER IN INTRABAND NON-CONTIGUOUS UPLINK CARRIER AGGREGATION - One embodiment of the present specification relates to a method for reducing transmission power. The method for reducing transmission power can comprise the steps of: determining whether set carrier aggregation (CA) corresponds to intra-band non-contiguous CA when the CA is set; determining transmission power by applying maximum power reduction (MPR) when the set CA corresponds to intra-band non-contiguous CA; and reducing power by applying additional MPR to the determined transmission power in order to protect adjacent bands when non-contiguous carriers belong to a specific band. | 08-27-2015 |
20150282190 | INTERFERENCE CANCELLATION RECEIVING METHOD AND INTERFERENCE CANCELLATION RECEIVING TERMINAL - One embodiment of the present specification provides an interference cancellation receiving method. According to the method, interference estimation support information can be received from a serving cell. The information includes information for a time domain and information for a frequency domain, wherein the information for a time domain can indicate a section of a subframe or a radio frame in which the coherence of an interference signal is maintained, and the information for a frequency domain can indicate a section in which the coherence of the interference signal is maintained. According to the method, an interference signal introduced from a neighboring cell is estimated by using the information for a time domain and the information for a frequency domain of the interference estimation support information, and a signal from the serving cell can be detected by cancelling the estimated interference. | 10-01-2015 |