Patent application number | Description | Published |
20100290439 | METHOD AND DEVICE FOR SENDING INFORMATION IN A PHYSICAL UPLINK CONTROL CHANNEL - The present invention discloses a method and device for sending a message in a physical uplink control channel. The present invention overcomes the problem that an index of the physical uplink control channel corresponding to a ACK/NACK message can not be represented implicitly in prior art by using the known downlink information, which includes an index of the control channel element where control signaling associated with downlink data is located and an index of a sub-frame where the downlink data is located. Therefore, the index of the physical uplink control channel where the ACK/NACK message associated with the downlink data is located can be represented and the ACK/NACK message can be sent in an appropriate physical uplink control channel. | 11-18-2010 |
20100332937 | DISTRIBUTING METHOD FOR PHYSICAL HYBRID ARQ INDICATOR CHANNEL RESOURCES - A method for allocating resources of physical hybrid ARQ indicator channels is disclosed, comprising: a transmitting end dividing evenly all resources of Physical Hybrid ARQ Indicator Channels (PHICHs) to be allocated into a plurality of configured PHICH groups, and then mapping them to sub-carriers of resource groups corresponding to the PHICH groups to transmit signals in the PHICHs through the sub-carriers. The present invention enables Hybrid Automatic Repeat reQuest function to be implemented in a practical system, and also ensures minimum interference between different users and improves the utilization of system resources. | 12-30-2010 |
20110170462 | Method for Determining Random Access Channel Number and Sending Sounding Reference Signal - The present invention provides a method for determining the number of random access channels which is applied to a time division duplex system. The method comprises: a terminal determining configuration parameters related to the number of the random access channels in an UpPTS based on system configuration, said configuration parameters including the number of downlink-to-uplink switch-points in one radio frame N | 07-14-2011 |
20120182974 | System and Method for Mapping Reference Signal Sequence in Advanced Long Term Evolution System - The present invention provides a method and system for mapping a reference signal sequence in an advanced Long Term Evolution (LTE) system, and the method and the system are used to map the reference signal sequence to an orthogonal frequency division multiplexing symbol of l. The method includes: when the system uses a normal cyclic prefix, determining the symbol l according to an expression, and mapping the reference signal sequence to a location of a sub-carrier k on the symbol l of an antenna port p. The system includes: a mapping module, a first acquiring module and a second acquiring module. The system and the method which are provided ensure the transmission performance while ensuring the interference randomization. In addition, the system and the method are compatible with existing LTE systems, thus realizing high-order Multiple Input Multiple Output (MIMO) transmission, supporting the usage of the corresponding techniques. | 07-19-2012 |
20120207240 | METHOD AND SYSTEM FOR ACQUIRING CHANNEL STATE INFORMATION - A method for acquiring channel state information is disclosed in the present invention, including: a user equipment (UE) reporting codebook index information and information about the total number of layers to a base station (eNB), wherein the codebook index information includes one of the following information: class 2 codebook index l; and class 1 codebook index i and index parameter j; and after receiving the codebook index information and information about the total number of layers sent by the UE, the base station obtaining a codeword in the manner of inquiring of a preset codebook list or in the manner of inquiring of the preset codebook list in conjunction with calculation according to the codebook index information and information about the total number of layers. A system for acquiring channel state information is also disclosed in the present invention. | 08-16-2012 |
20120218881 | METHOD AND SYSTEM FOR ACKNOWLEDGMENT/NEGATIVE ACKNOWLEDGMENT FEEDBACK ON PHYSICAL UPLINK CONTROL CHANNEL - The present invention discloses a method and system for feeding back an acknowledgement/negative-acknowledgement response message on a physical uplink control channel. The method includes: sending, by a user equipment, an acknowledgement/negative-acknowledgement response message by adopting a manner based on a channel selection or based on a DFT-s-OFDM in a multiplexing mode according to a feedback manner or a feedback rule in the multiplexing mode configured by a base station. In the present invention, the base station can configure for the user equipment and directly indicate to the user equipment through the higher layer signaling the feedback manner in the multiplexing mode, and can also configure the feedback rule in the multiplexing mode for the user equipment; and the user equipment determines the feedback manner in the multiplexing mode according to the feedback manner or feedback rule configured by the base station. | 08-30-2012 |
20120236817 | Channel State Information Feedback Method and User Equipment - A method for feeding back channel state information and user equipment are provided in the present invention, which relates to the digital communication field; and they solve the problem of lacking a mechanism of reporting overall and effective channel state information in a SU-MIMO and MU-MIMO dynamic switching system. The method includes: in a single transmission mode, UE sends the channel state information to a network side, wherein the channel state information includes information indicating a transmission layer with the best channel quality. Technical schemes provided in the present invention are applied to the LTE system and LTE-A system. | 09-20-2012 |
20130010741 | METHOD AND DEVICE FOR TRANSMITTING CONTROL FORMAT INDICATOR VALUE - A method for transmitting control format indicator values includes RRC configuring CFI values and transmitting signalings related thereto with one of multiple modes. The modes include configuring one RRC signaling for each component carrier which can be cross-carrier scheduled for user equipment, to indicate a CFI value of each subframe of said component carrier; configuring one RRC signaling respectively for each of subframe types designated by all component carriers which can be cross-carrier scheduled for user equipment, to indicate a CFI value of each designated subframe type; configuring one RRC signaling respectively for each designated subframe type of each component carrier which can be cross-carrier scheduled for user equipment, to indicate a CFI value of each subframe type designated; and configuring one RRC signaling for each user equipment for which cross-carrier scheduling can be performed, to indicate the CFI values of all component carriers which can be cross-carrier scheduled. | 01-10-2013 |
20130028108 | METHOD AND APPARATUS FOR DETECTING DOWNLINK CONTROL INFORMATION - The present invention discloses a method for detecting downlink control information, including: when scheduling across carriers is enabled, determining by user equipment (UE) user-specific search space monitoring a physical downlink control channel (PDCCH) according to component carrier indexes, wherein the component carrier indexes include component carrier indexes corresponding to various component carriers implementing scheduling across carrier and being scheduled across carriers. Also the present invention also provides an apparatus for detecting downlink control information, a user equipment and a network side device. The present invention solve the overlap problem of common search space and user-specific search space in Release 10 and solves the problem of determining a search space for the PDCCH in the situation of scheduling across carriers is enabled in Release 10. | 01-31-2013 |
20130039233 | RADIO FRAME AND SOUNDING REFERENCE SIGNAL SENDING METHOD IN MOBILE COMMUNICATION SYSTEM - A radio frame and method are provided for sending a sounding reference signal (SRS) in a mobile communication system, which is used to solve the problem of shortage of resources for sending the SRS in the mobile communication system. The method includes a user equipment (UE) sending the SRS to eNB in time-frequency resources corresponding to a guard space in the radio frame, wherein, the guard space is one or more of downlink to uplink guard space, uplink to downlink guard space, reserved subframes, or reserved idle resources. A device is also provided for sending the SRS, applied to the UE in the mobile communication system, wherein the device includes a radio frame construction module and a sounding reference signal transmission module. | 02-14-2013 |
20130235811 | Method and System for Indicating Transmission Parameter - A method and system for indicating a transmission parameter are provided in the present invention. The method includes: when multi-user multi-input multi-output (MIMO) data are transmitted, using a newly-added indication signaling in a downlink control information format to indicate different joint encoded parameters when numbers of enabled transport blocks are different. Through adding new indication signaling in the present invention, different joint encoded parameters are indicated during the multi-user MIMO data transmission and the MIMO multi-user transmission based on the demodulation reference signal is supported. | 09-12-2013 |
20140177491 | Base Station, Terminal, System And Method For Data Transmitting In Time-Division Duplex System - A base station, a terminal, a system and methods for performing data transmission in a Time Division Duplex (TDD) system are disclosed. One of the methods includes: the base station sending an uplink scheduling grant signaling to the terminal on a carrier m, and after receiving uplink data sent by the terminal through a Physical Uplink Shared Channel (PUSCH) on a carrier n, the base station sending an ACK/NACK feedback signaling corresponding to the PUSCH to the terminal on the carrier m; wherein, m≠n; a timing relationship between a subframe by which the base station sends the uplink scheduling grant signaling and/or the ACK/NACK feedback signaling and a subframe where the PUSCH is located is identical with a Hybrid Automatic Repeat Request (HARQ) timing relationship corresponding to an uplink/downlink configuration of the carrier m or the carrier n. | 06-26-2014 |
20140369324 | UPLINK SIGNAL SENDING METHOD AND USER EQUIPMENT - An uplink signal sending method applied to a carrier aggregation system, comprises: after configuring more than two timing advances, user equipment rate-matching uplink signals and/or uplink channels between which front-to-back symbol overlap will occur in time domain over different uplink carriers, and then sending the uplink signals and/or uplink channels, or discarding and then sending the uplink signals and/or uplink channels, or sending simultaneously. | 12-18-2014 |
20150049733 | Control Signaling Transmission and Demodulation Method, System and Terminal - The present document discloses control signaling transmission and demodulation method, system and terminal. The control signaling transmission method includes: a base station transmitting control signaling using different transmission technologies on available transmission resources in the second control signaling transmission area in the same RB. With present document, by configuring a pilot frequency port and dividing the transmission resources in the second control signaling transmission area in the RB, the control signaling of a plurality of UEs using different transmission technologies can be transmitted on the available transmission resources in the same RB, thus fully utilizing the transmission resources in the RB, improving resource utilization rate, enhancing control signaling capacity, and supporting the control signaling of more users. | 02-19-2015 |