Patent application number | Description | Published |
20090147880 | METHOD FOR REDUCING FEEDBACK INFORMATION OVERHEAD IN PRECODED MIMO-OFDM SYSTEMS - An improved method for reducing an amount of precoding feedback information in a multi-carrier Multiple-Input Multiple-Output (MIMO) communication system using precoding is disclosed. At the receiving end, the method jointly selects, while considering transmission quality for each relevant combination of sub-bands and matrices, a limited number of P codebook indices and a limited number of K′ sub-bands to be included in a subset ω (m | 06-11-2009 |
20110199997 | METHOD, APPARATUS AND SYSTEM FOR DETERMINING RESOURCE INDICES - The present invention relates to a method, apparatus and system for determining resource indices in a wireless communication system, which explores and implements for at least two control channel elements (CCEs) for a user equipment (UE), maps the CCEs to at least two resource indices for the UE according to a predetermined mapping rule. It can determine multiple resource indices to a UE implicitly according to some embodiments of the present invention. | 08-18-2011 |
20110212730 | METHOD IN A WIRELESS COMMUNICATION SYSTEM - A method in a Central Node (CN), a method in a Remote Node (RN), and a method in a wireless communication system for allocating reference signals to be used for uplink transmission are disclosed. According to one aspect reference signals are allocated with a method comprising the steps of: determining in a CN a number of reference signals N to be used for uplink transmission by a Remote Node RN; indicating to the RN the number of reference signals N to be used for uplink transmission by the RN; configuring an uplink transmission by the RN with at most the number of reference signals N; and performing by the RN the uplink transmission with at most the number of reference signals N on transmit antennas comprised in the RN. The present invention further discloses a CN and a RN relating to said methods. | 09-01-2011 |
20110249602 | METHOD FOR SIGNALLING IN A WIRELESS COMMUNICATION SYSTEM - The present invention relates to a method in a wireless communication system for signalling number of antenna ports which a transmit node comprises. According to the method a communication signal is transmitted carrying information on number of at least one antenna port of said transmit node, wherein the information on said number of at least one antenna port is partitioned and provided distributed over at least two predefined parts of said communication signal. The invention also relates to a transmit node and a receive node, and methods thereof. | 10-13-2011 |
20110274024 | METHOD AND USER EQUIPMENT FOR TRANSMITTING MULTIPLE A/N INFORMATION - A method and a user equipment (UE) for transmitting multiple A/N information are provided. The method includes: determining reserved resources; determining A/N information that needs to be transmitted; and determining that the number of transmission resources is N (N is an integer greater than or equal to 2) and corresponding modulation symbols according to the number of the reserved resources and the A/N information that needs to be transmitted; and transmitting multiple A/N information by transmitting the modulation symbols by using the transmission resources. By transmitting multiple A/N information, a downlink frequency band where an error occurs can be correctly located. The A/N information includes acknowledgement (ACK) information, negative acknowledgement (NACK) information or Discontinuous Transmission (DTX) state information. | 11-10-2011 |
20110286548 | METHOD AND SYSTEM FOR ASSIGNING REFERENCE SIGNALS IN A MULTI-ANTENNA CONTEXT - A method and system of assigning reference signals to antennas and nodes in a wireless communication system, the wireless communication system comprising N number of transmitting nodes, wherein N is an integer N≧1, is disclosed. The transmitting nodes are transmitting reference signals in a first slot and a second slot within sub-frames, over the same bandwidth. Each transmitting node has at least one transmit antenna, wherein different nodes can have different number of transmit antennas. The reference signals are of two different types, a first type of reference signals used for demodulation, and a second type of reference signals used for measurements. According to the method, reference signals of the first type is assigned to a number of transmitting nodes with at least one transmit antenna in the first and second slot in a predefined bandwidth; and reference signals of the second type is assigned to at least one transmitting node with at least transmit antennas in at least one of the first and second slot in a predefined bandwidth. | 11-24-2011 |
20120026966 | METHOD, APPARATUS AND SYSTEM FOR DETERMINING RESOURCE INDICES - The present invention relates to a method, apparatus and system for determining resource indices in a wireless communication system, which explores and implements for at least two control channel elements (CCEs) for a user equipment (UE), maps the CCEs to at least two resource indices for the UE according to a predetermined mapping rule. It can determine multiple resource indices to a UE implicitly according to some embodiments of the present invention. | 02-02-2012 |
20120034928 | METHOD IN A WIRELESS COMMUNICATION SYSTEM - A method in a Central Node (CN), a method in a Remote Node (RN), and a method in a wireless communication system for allocating reference signals to be used for uplink transmission are disclosed. According to one aspect reference signals are allocated with a method comprising the steps of: determining in a CN a number of reference signals N to be used for uplink transmission by a Remote Node RN; indicating to the RN the number of reference signals N to be used for uplink transmission by the RN; configuring an uplink transmission by the RN with at most the number of reference signals N; and performing by the RN the uplink transmission with at most the number of reference signals N on transmit antennas comprised in the RN. The present disclosure further discloses a CN and a RN relating to the methods. | 02-09-2012 |