Abstract: A battery pack is disclosed. In one aspect, the battery pack includes first and second cell groups each including one or more cells, a circuit board electrically connected to the first and second cell groups and a connector provided in the circuit board and including a plurality of connector terminals. The connector terminals include first and second connector terminals respectively electrically connected to first and second electrodes of the first cell group. The connector terminals include first and second connector terminals respectively electrically connected to first and second electrodes of the second cell group. The first and third connector terminals are detachably in contact with each other, wherein the second and fourth connector terminals are detachably in contact with each other. According to some embodiments, it is possible to simply physically release a parallel connection of a plurality of cells or a plurality of cell groups.

Abstract: A battery pack is disclosed. In one aspect, the battery pack includes first and second cell groups each including one or more cells, a circuit board electrically connected to the first and second cell groups and a connector provided in the circuit board and including a plurality of connector terminals. The connector terminals include first and second connector terminals respectively electrically connected to first and second electrodes of the first cell group. The connector terminals include first and second connector terminals respectively electrically connected to first and second electrodes of the second cell group. The first and third connector terminals are detachably in contact with each other, wherein the second and fourth connector terminals are detachably in contact with each other. According to some embodiments, it is possible to simply physically release a parallel connection of a plurality of cells or a plurality of cell groups.

Abstract: A battery pack includes a plurality of battery cells including an electrode portion; a holder case accommodating the plurality of battery cells; and a printed circuit module (PCM) mounted to an outer surface of the holder case, the holder case including a fastening portion fixing the PCM to the holder case, the fastening portion being at a region of the holder case corresponding to an edge portion of the PCM.

Abstract: A battery pack is disclosed. In one aspect, the battery pack includes a plurality of bare cells connected in series or in parallel and a protective circuit module electrically connected to the bare cells and including a plurality of circuit components on a first surface thereof. The battery pack also includes a plurality of terminals formed on the first surface of the protective circuit module and configured to be electrically connected to an external device. At least one of the terminals is spaced apart from the first surface of the protective circuit module and wherein at least one of the circuit components is formed between the at least one terminal and the first surface of the protective circuit module.

Abstract: A connecting tab for connecting battery cells that can prevent interference caused by contact between a housing and the connecting tab when inserting a battery module into the housing. The connecting tab includes a hole formed in a center portion thereof. There connecting tab connects the battery cells, including: a main body part formed in a plate shape; a cell bonding part in the main body that contacts the plurality of battery cells; a hole that is formed in a central portion surrounded by the cell bonding part; and a bending part that crosses the hole and is folded to be overlapped in half. With this configuration of the connecting tab, stability of the battery module can be improved.

Abstract: A battery pack includes a plurality of battery cells including an electrode portion; a holder case accommodating the plurality of battery cells; and a printed circuit module (PCM) mounted to an outer surface of the holder case, the holder case including a fastening portion fixing the PCM to the holder case, the fastening portion being at a region of the holder case corresponding to an edge portion of the PCM.

Abstract: Disclosed is a battery pack having improved durability and safety. The battery pack according to the present invention includes: a plurality of battery cells having a first electrode and a second electrode and disposed substantially parallel with each other in a first direction; a holder case accommodating the battery cells; a lead wire connected to the battery cells; and at least one connection tab including a connection part connected to at least one of the first electrode and the second electrode of the battery cells, an extension part extending from the connection part, and a guide part having a guide groove accommodating the lead wire in.

Abstract: The embodiment relates to a battery pack having improved durability and safety by forming fixing ribs in a holder case mounted on a plurality of battery cells to fix the battery cells and a lead wire in implementing the battery pack. A battery pack according to the present invention includes: a plurality of battery cells electrically connected by connection tabs; a holder case covering a portion of the outer surfaces of the battery cells; a protection circuit module mounted on the holder case; and a lead wire connecting the protection circuit module with the battery cells, in which the holder case has at least one fixing rib that fixes the battery cells and guides the lead wire.

Abstract: A connecting tab for connecting battery cells that can prevent interference caused by contact between a housing and the connecting tab when inserting a battery module into the housing. The connecting tab includes a hole formed in a center portion thereof. There connecting tab connects the battery cells, including: a main body part formed in a plate shape; a cell bonding part in the main body that contacts the plurality of battery cells; a hole that is formed in a central portion surrounded by the cell bonding part; and a bending part that crosses the hole and is folded to be overlapped in half. With this configuration of the connecting tab, stability of the battery module can be improved.

Abstract: An apparatus and method for determining a transmission unit for data stream transmission in a wireless communication system in which multiple transmission and reception antennas are used and a receiver provides information on a data stream to be transmitted through a transmission unit. A fading estimator calculates fading values from the multiple transmission antennas to the multiple reception antennas. A channel quality estimator reverse-orders combined weights for multiple transmission units based on the fading values from the multiple transmission antennas to the multiple reception antennas, successively selects transmission units for data stream transmission among the reverse-ordered transmission units, determines a modulation and coding scheme (MCS) for each of the selected transmission units, and feeds back the MCS to a transmitter.

Abstract: An apparatus and method for determining a transmission unit for data stream transmission in a wireless communication system in which multiple transmission and reception antennas are used and a receiver provides information on a data stream to be transmitted through a transmission unit. A fading estimator calculates fading values from the multiple transmission antennas to the multiple reception antennas. A channel quality estimator reverse-orders combined weights for multiple transmission units based on the fading values from the multiple transmission antennas to the multiple reception antennas, successively selects transmission units for data stream transmission among the reverse-ordered transmission units, determines a modulation and coding scheme (MCS) for each of the selected transmission units, and feeds back the MCS to a transmitter.

Abstract: A transmit diversity apparatus and method are provided for adaptively providing a transmit diversity gain or a beamforming gain depending on changes in a radio channel undergoing multipath fading in a mobile communication system using multiple antennas. A transmitter forms as many fixed beams as the number of transmit antennas and a receiver selects a fixed beam having relatively high power among received fixed beams or linearly combines the received fixed beams. This common eigen space transmit diversity scheme improves the link performance between the transmitter and the receiver.

Abstract: An apparatus and a method for transmitting and receiving data in a mobile communication system including an array antenna. The method includes the steps of transmitting pilot channels through a transmission antenna while aligning the pilot channels orthogonally to each other, receiving feedback information related to the pilot channels from a mobile station capable of receiving the data, dividing the data to be transmitted into sub-data streams by using the feedback information, and determining a coding rate and a transmit power for the sub-data streams, and converting the sub-data streams into symbol arrays to be transmitted according to the coding rate and the transmit power and transmitting data by converting the data into fixed beams.