Patent application number | Description | Published |
20110002317 | METHOD AND DEVICE FOR MAPPING THE INITIAL LOCATION OF DOWNLINK PILOT - A mapping method for the initial location of the downlink pilot comprises the following steps: acquiring a cell sequence number; mapping the cell sequence number to k; and setting an initial location of a downlink pilot on a first antenna as the K | 01-06-2011 |
20110026444 | METHOD FOR FEEDING BACK CONFIRMATION INFORMATION ON A PHYSICAL UPLINK SHARED CHANNEL - A method for feeding back confirmation information on a physical uplink shared channel, this method includes: an eNodeB carries, in downlink control information, a number value of the downlink sub-frame corresponding to the confirmation information which is fed back by one uplink sub-frame, and transmits data on a plurality of continuous downlink sub-frames after the sub-frame carrying the downlink control information (S | 02-03-2011 |
20110059764 | Transmission power control method and system for a physical uplink shared channel - The present disclosure provides a transmission power control method for a physical uplink shared channel, including: when there is only uplink control information but no uplink shared channel data sent over the physical uplink shared channel, the transmission power of the physical uplink shared channel is set according to the total number of bits contained in a channel quality indication signaling and its corresponding cyclic redundancy check as well as an amplitude offset. The present disclosure also provides a transmission power control system for a physical uplink shared channel. The method and system described in the present disclosure can ensure the overall performance of a system. | 03-10-2011 |
20110096702 | METHOD FOR SENDING THE PHYSICAL BROADCAST CHANNEL IN A TIME DIVISION DUPLEX SYSTEM - A method for sending a physical broadcast channel in the TDD system is disclosed, which is: a signal of a physical broadcast channel is not sent in a pilot position, and the signal of the physical broadcast channel is sent on 4 OFDM symbols of the first subframe of one radio frame. Through the present invention, the extension requirement of the physical broadcast channel capacity in the TDD can be met, and the system complexity is reduced due to the normal cyclic prefix and extended prefix using the same sending method. | 04-28-2011 |
20110122830 | METHODS AND APPARATUSES FOR GENERATING AND PARSING CONTINUOUS RESOURCE ALLOCATION SIGNALING - A method for generating continuous resource allocation signaling comprises: a sender determines a value of the total number of resource blocks N | 05-26-2011 |
20110134860 | Method and apparatus for sending rank indication information, receiving method and apparatus thereof - The present invention discloses a method and an apparatus for sending rank indication (RI) information, and a method and an apparatus for receiving RI information, wherein the method for sending the RI information includes: carrying the RI information on a physical uplink control channel (PUCCH) for transmitting scheduling request (SR) information when the RI information and the SR information are sent within a same subframe, and sending the RI information and the SR information by using the PUCCH for transmitting SR information. According to the present invention, the problem that the orthogonality of codes between PUCCHs is destroyed due to that the RI information and the SR information are sent within a same subframe is solved, the overall system performance thereby can be guaranteed. | 06-09-2011 |
20110188414 | SIGNAL TRANSMISSION METHOD AND FRAME STRUCTURE ADOPTED IN A TDD SYSTEM - A signal transmission method in a Time Division Duplex (TDD) system is disclosed. The method comprises following steps: within a time length of a half-frame of a radio frame, base station transmits signal on a downlink special time slot, thereafter does not transmit signal on a Guard Period (GP), and then receives signal on an uplink special time slot; all time lengths of other uplink or downlink normal time slots for transmitting signal are equal; the total time length of the downlink special time slot, the guard period and the uplink special time slot is integer times of the time length of an uplink or downlink normal time slot. In addition, a frame structure adopted in the TDD system which corresponds to the method is disclosed. The present invention makes it flexible to set the duration of the GP and it is guaranteed that, even if a synchronization signal adopts power promotion, it will not bring great interference to uplink reception of other base stations; in addition, the utilization efficiency of the system is improved. | 08-04-2011 |
20110228729 | A METHOD FOR MAPPING A PHYSICAL DOWNLINK CONTROL FORMAT INDICATOR CHANNEL TO PHYSICAL RESOURCES - A method for mapping a physical downlink control format indicator channel to physical resources includes the steps that 16 modulated data y(0), y(1), . . . , y(15) of a downlink control signaling indicator channel in an LTE system are divided into 4 groups in order and mapped by groups, which allows the downlink control format indicator channel to be mapped exactly to the continuous 4 resource elements recombined by resources which are divided among all system physical resources except the pilots according to such continuous 4 resource elements. By defining group mapping rules, this method can offer the maximum gain of frequency selectivity. | 09-22-2011 |
20110268093 | Method and device for mapping a codeword to a layer in a multi-input multi-output system - The present invention discloses a method for mapping a codeword to a layer in a multi-input multi-output system, the method includes: grouping current layers in a multi-input multi-output system according to the number of current codewords, and mapping each codeword to the layer of a group to which the codeword corresponds. The present invention further discloses a device for mapping a codeword to a layer in a multi-input multi-output system, the device includes: a layer grouping unit and a mapping unit, wherein the layer grouping unit is used for grouping current layers in a multi-input multi-output system according to the number of current codewords; and the mapping unit is used for mapping each codeword to the layer of a group to which the codeword corresponds. The present invention is easy to be implemented, and the mapping manner for mapping a codeword to a layer is more reasonable. | 11-03-2011 |
20120033615 | METHODS AND DEVICES FOR SENDING POSITIONING REFERENCE SIGNALS, FOR SENDING DATA AND FOR RECEIVING DATA - The present invention discloses methods for sending positioning reference signals (PRSs), for sending data and for receiving data. When PRSs and data carried by a physical downlink control channel (PDCCH) are required to be sent on a same physical resource, only the data carried by the PDCCH or the PRSs are sent on the same physical resource; or, when a sending end sends the PRSs and the data carried by the PDCCH on the same physical resource at the same time, a receiving end is made to ignore the received PRSs or the data carried by the PDCCH; or, the sending of the PRSs or the data carried by the PDCCH is limited so that they will not be sent on the same physical resource. The present invention also discloses devices for sending positioning reference signals, for sending data and receiving data. The present invention has solved the problem that the data carried by the PDCCH are in conflict with the PRSs over the fourth OFDM symbol when the PDCCH is sent over the first four OFDM symbols in the subframe, thereby ensuring the overall performance of the system. | 02-09-2012 |
20120033627 | Method for Sending and Detecting Downlink Control Information - A method for sending and detecting downlink control information is provided. A base station carries the downlink control information in a physical downlink control channel, and sends said physical downlink control channel through component carriers. Said base station bears first type downlink control information on an anchor component carrier, and bears third type downlink control information on a prime component carrier, wherein said first type downlink control information bears one or more types of uplink scheduling information, downlink scheduling information and uplink power control information of its component carrier, said third type downlink control information bears indication information of the second type downlink control information which bears the uplink scheduling information and/or the downlink scheduling information of one or more component carriers. A terminal detects the first type downlink control information on the anchor component carries and detects the third type downlink control information on the prime component carrier. | 02-09-2012 |
20120093101 | Method and system for transmitting position reference signal - The present disclosure provides a method and system for transmitting a position reference signal, which includes: acquiring a currently needed Position Reference Signal (PRS) sequence with a length of 2×N | 04-19-2012 |
20120093122 | Method and system for transmitting position reference signal - The present disclosure discloses a method and system for transmitting a position reference signal. Wherein the method includes: frequency domain positions for transmitting a position reference signal are n physical resource blocks, and the value of n is obtained according to signaling; time domain positions for transmitting the position reference signal are the remaining orthogonal frequency division multiplexing symbols in a subframe, except for orthogonal frequency division multiplexing symbols for transmitting a physical downlink control channel and orthogonal frequency division multiplexing symbols for transmitting a cell-specific reference signal; and the position reference signal is transmitted according to the frequency domain position and the time domain position. By adopting the method and the system of the present disclosure, the transmitting of the position reference signal is realized, and the positioning precision of a UE is ensured. | 04-19-2012 |
20120134434 | METHOD AND SYSTEM FOR PRECODING AND METHOD FOR CONSTRUCTING PRECODING CODEBOOK - A pre-coding method and system and a method for constructing pre-coding codebook are disclosed, including: a transmitting end and a receiving end storing information of a pre-coding codebook together, the receiving end selecting a codeword from the pre-coding codebook according to an estimated channel matrix and feeding back a serial number of the codeword to the transmitting end, and the transmitting end finding out the codeword according to the serial number and pre-coding, by using the codeword, a symbol block sent to the receiving end; wherein, at least eight codeword vectors or column vectors in at least eight codeword matrixes in the pre-coding codebook are obtained based on 8-dimensional vectors selected from a 8-dimensional vector set, and this 8-dimensional vector set is obtained by calculating from the part or all of 4-dimensional vectors in u | 05-31-2012 |
20120195267 | METHOD AND SYSTEM FOR TRANSMITTING DOWNLINK CONTROL INFORMATION - The present disclosure discloses a method and system for transmitting downlink control information, for solving the problem of how to indicate a transmission scheme when a cyclic redundancy check code in the downlink control channel is scrambled with the semi-persistently scheduled cell radio network temporary identifier. In order to support the bi-flow beam forming technology in the LTE-A R9, the present disclosure provides a downlink control information Format 1A, which may, when the cyclic redundancy check code in the downlink control channel is scrambled with the semi-persistently scheduled cell radio network temporary identifier, indicates a method for transmitting downlink control information, for example, single-layer transmission, transmit diversity, or a transmission scheme simultaneously involving single-layer transmission and transmit diversity, which guarantees flexibility of system schedule. The present disclosure adds no signaling overhead and has good adaptability with the LTE R8. | 08-02-2012 |
20120218950 | Signal Resource Determination Method - The present disclosure discloses a signal resource determination method, and the method includes that: carrying a dedicated demodulation data reference signal in a Resource Element (RE) on an Orthogonal Frequency Division Multiplexing (OFDM) symbol, wherein the OFDM symbol is in a non-control channel area of a Resource Block (RB) and carries a non-common reference signal. | 08-30-2012 |
20120320774 | Method for Transmitting Feedback of Channel State Information and User Equipment - Disclosed are a method for transmitting feedback of channel state information and user equipment. The method comprises: under a transmission mode, user equipment (UE) determining contents carried by channel state information according to indication information, wherein the indication information comprises at least one of the following: rank indicator (RI), channel quality indication information (CQI) and configuration signaling sent by a base station eNodeB; and the UE sending the channel state information to the eNodeB. The present invention solves the problem that the contents provided by the channel state information are not suitable for those transmission modes under which a multiple user-MIMO and a single user-MIMO can be switched from one to another, improving the applicability of the channel state information. | 12-20-2012 |
20130201929 | Method and System for Non-Periodic Feedback in Carrier Aggregation Scenario - The present invention discloses a method and a system for non-periodic feedback in a carrier aggregation scenario. The method comprises: a base station sending a non-periodic trigger signaling to a piece of User Equipment (UE); the UE receiving the non-periodic trigger signaling, and determining a Downlink Component Carrier (DL CC) requiring feedback according to the non-periodic trigger signaling; the UE triggering a non-periodic feedback of the determined DL CC. With the present invention, the problem that it is impossible to determine which downlink component carrier is to be fed back according to the non-periodic trigger signaling in the carrier aggregation scenario is solved, uplink feedback of the DL CC that is unnecessary to be fed back is effectively reduced, the base station can adjust resource allocation according to information fed back by the UE, and the performance of downlink data transmission is ensured. | 08-08-2013 |
20130208819 | Method and System for Channel State Information Feedback - The present invention discloses a method for feeding back channel information, which includes: configuring a same codebook space at a data transmitting end and a data receiving end ( | 08-15-2013 |
20130315183 | Method and System for Sharing Frequency Spectrum Between GSM System and LTE System - The disclosure discloses a method for sharing a frequency spectrum between a GSM system and a LTE system. The method includes: avoiding fixed channels of the LTE system of a current cell when allocating frequency points of the GSM system to the current cell and a neighbour cell interfering with the current cell; frequency domain resources allocated to users and indicated by Physical Downlink Share Channels (PDSCHs) and Physical Uplink Share Channels (PUSCHs) of the LTE system are not located on same frequency resources with frequency points of the GSM system of the current cell and the neighbour cell interfering with the current cell; and for Physical Control Format Indicator Channels (PCFICHs) and Physical Hybrid ARQ Indicator Channels (PHICHs) of the LTE system, avoiding the PCFICHs and the PHICHs of the LTE system when allocating frequency points of the GSM system to the current cell and the neighbour cell interfering with the current cell, or allocating, by the LTE system, an appropriate Cell Identification (CellID) to avoid the frequency points of the GSM system of the current cell and the neighbour cell interfering with the current cell. The disclosure further discloses a system for sharing a frequency spectrum. According to the method and the system of the disclosure, the GSM system is able to transit to the LTE system smoothly while frequency spectrum utilization is improved. | 11-28-2013 |
20140029428 | Method and a system for transmitting pilot - The disclosure discloses a method for transmitting a pilot, which includes the step of: selectively transmitting or not transmitting a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. A system for transmitting the pilot is further disclosed, which includes a pilot selectively transmitting unit configured to selectively transmit or not transmit a demodulation pilot in a subframe according to a setting, in a control signaling, of triggering or not triggering a demodulation pilot transmission in the subframe. The method and system of the disclosure are capable of reducing the pilot overhead and improving the capacity of the LTE/LTE-Advanced system. | 01-30-2014 |