摘要:
A method of transmitting at least one data stream using superposition coding (SPC) in a wireless communication system is disclosed. More specifically, a method includes receiving feedback information from at least two access terminals (ATs), assigning the at least two ATs as a first AT or a second AT based on the feedback information, wherein the first AT has a smaller path loss than that of the second AT, and the second AT has a larger path loss than that of the first AT, channel coding the at least one inputted data stream by a channel coding scheme, modulating the at least one data stream using layered modulation scheme, allocating wireless resources to symbols of the first AT and the second AT, and transmitting the symbols to at least one of the first AT and the second AT according to the allocated wireless resources.
摘要:
A method and apparatus for transmission to support various QoS requirements and various channel conditions is provided. By staggering the transmission of data sub packets and partitioning discrete tones used for transmission, a plurality of users may be provided with a plurality of multiple access techniques.
摘要:
A method for communicating channel quality information in a multi-carrier wireless communication system is provided. The method includes receiving information related to a link between a first forward link carrier used to receive data from a base station and a first reverse link carrier used to transmit data to the base station, receiving information related to a link between a second forward link carrier used to receive data from the base station and a second reverse link carrier used to transmit data to the base station, and transmitting channel quality information for the first forward link carrier and for the second forward link carrier to the base station via a same reverse link carrier, where the first forward link carrier and the second forward link carrier are not the same and the first reverse link carrier and the second reverse link carrier are not the same.
摘要:
A frequency tunable filter comprises a housing having a plurality of walls therein defining a plurality of cavities; a cover mounted on the housing; a plurality of resonators contained in the cavities; at least one sliding member located between the cover and the resonators; and a plurality of metal tuning elements attached to a lower part of the sliding member, wherein frequency tuning is performed by sliding of the sliding member.
摘要:
A method and an apparatus for transmitting control information for multicast broadcast service (MBS) is provided. The method includes configuring one cell specific control channel for carrying cell specific control information; configuring at least one non-cell specific control channel for carrying non-cell specific control information; and transmitting the cell specific control channel and the non-cell specific control channel to a mobile station.
摘要:
A method and apparatus to reduce the overhead of frequently sent signaling messages is provided. Various methods are presented which facilitate conveying information that is unchanged from information in the earlier part of the message, or in a previous signaling message, without sending the previous information in its entirety.
摘要:
A frequency-tunable filter using a sliding system is disclosed. The frequency-tunable filter includes: a housing, in which a multiple number of cavities are defined by partitions; a sub-cover, which is coupled to an upper portion of the housing and in which a guide groove is formed; at least one sliding member installed in the guide groove; a main cover coupled to an upper portion of the sub-cover; a resonator held in the cavity; and at least one tuning element coupled to a lower portion of the sliding member to be inserted inside the housing, where tuning is achieved by a sliding movement of the sliding member, and at least one first guide member is coupled to at least one side surface of the sliding member such that the first guide member guides a sliding movement by way of contact with the side surface of the guide groove.
摘要:
A data transmission method using an HARQ includes transmitting a first transmission block which is a portion of bit streams of a mother codeword, receiving a retransmission request with respect to the mother codeword, and transmitting a second transmission block which is a bit stream subsequent to the first transmission block, according to the retransmission request, wherein a modulation order obtained from a first range of a modulation order product code rate (MPR) is applied to the first transmission block, a modulation order obtained from a second range of the MPR according to the number of retransmissions is applied to the second transmission block, and the second range of the MPR is adjusted as much as a linear offset to the first range.
摘要:
A method of transmitting data using HARQ includes transmitting a first block, a partial bit stream of a codeword, and transmitting a second block, a bit stream starting from a bit index next to the last bit index of the first block, according to a retransmission request with respect to the codeword, wherein a different modulation scheme from that of the first block is applied to the second block. A coding gain of an incremental redundancy (IR) mode can be obtained although the amount of retransmission data is arbitrarily changed according to a change in transmission attributes such as a modulation scheme, resource allocation, the size of a transport block, or the like, in the adaptive HARQ scheme, so the transmission efficiency of a system can be enhanced.
摘要:
A method of transmitting more than one signal in a wireless communication system is provided. The method comprises allocating multiple symbols to a first signal constellation and a second signal constellation, wherein the first signal constellation refers to base layer signals and the second signal constellation refers to enhancement layer signals; modulating the multiple symbols of the first signal constellation and the second signal constellation; and transmitting the modulated symbols, wherein configuration information used for modulating the multiple symbols is provided in a control message.