| Patent application number | Description | Published |
|---|
| 20090010319 | Method and Apparatus for Measurement Report for the Decision of Transmission Mode Transition - Disclosed are a method and apparatus for measurement report for the decision of transmission mode transition that obtain a threshold value of reporting CQI_difference of all frequency sub-bands; measure a CQI value at each CQI reporting frequency sub-band of whole frequency band in each measure time interval; determine a CQI_difference value based on the measured CQI value of each CQI reporting frequency sub-band; and compare the determined CQI_difference value with the threshold value, if a condition is satisfied, then the UE sends the determined CQI_difference value to the BS. After the UE has reported this measurement report to the BS, the BS may choose a more suitable data transmission mode for the UE based on this measurement report to make data transmission more effective. | 01-08-2009 |
| 20090130985 | METHOD FOR TRANSITION BETWEEN DISTRIBUTED TRANSMISSION AND LOCALIZED TRANSMISSION - Provided is a method for transitioning between a distributed transmission mode and a localized transmission mode, including transmitting, by a Base Station (BS), a measurement control message to a User Element (UE), wherein the UE makes corresponding measurement and transmits a required measurement report message to the BS and the BS transmits a transition indicator message of new mode to the UE based on measurement report message sent from the UE; and commencing CQI reporting and a downlink transmission of a new mode between the UE and the BS. The BS can choose a more appropriate transmission mode for the downlink transmission based on changing characteristics of the channel in the time domain and the frequency domain. | 05-21-2009 |
| 20090196190 | METHOD AND APPARATUS FOR CHANNEL QUALITY INDICATOR REPORT - A method for a UE reporting a CQI comprising steps of: obtaining a total number M of CQI report sub-bands in a system and a number N of CQI report sub-bands needed to be reported; measuring channel qualities of all sub-bands and according to the measurement result, determining N CQI report sub-bands needed to be reported and corresponding CQI values; sending a L-bit long sequence to a base station for indicating the sub-bands that need to be reported; sending CQI values corresponding to the sub-bands need to be reported to the base station. The present invention uses comparatively shorter bit sequence to indicate CQI report sub-bands needed to be reported and reduces the number of information bits necessary for CQI report sub-bands and also reduces the number of information bits corresponding to the CQI values in the CQI report sub-bands. | 08-06-2009 |
| 20100112956 | Radio link failure detection method and apparatus for wireless communication system - A radio link failure detection method of a user equipment transitioning between a Discontinuous Reception (DRX) mode and non-DRX mode cyclically in a wireless communication system includes transitioning between a Discontinuous Reception (DRX) mode and a non-DRX mode in a wireless communication system. The method also includes adjusting, when a mode transition occurs, a size of a monitoring window for a transitioned operation mode; reporting a radio channel condition acquired by monitoring and averaging the channel condition within the monitoring window; and repeating adjustment of the monitoring window size and report of the radio channel condition while moving the monitoring window as time progress. | 05-06-2010 |
| 20110235682 | Method and apparatus for determining reference signals in mobile communication system - Embodiments of the present invention provide a method and an apparatus for determining reference signals. A User Equipment (UE) obtains group hopping information and/or sequence hopping information of a UE-specific reference signal from cell-specific system information broadcasted by an eNB. The UE receives UE-specific control information transmitted by the eNB to the UE. The UE generates a UE-specific reference signal of a first slot according to the group hopping information and/or sequence hopping information of the broadcasted cell-specific reference signal. If the UE-specific control information indicates that group hopping and/or sequence hopping of UE-specific reference signals is disabled, the UE generates a UE-specific reference signal of a second slot in a same frame with the first slot according to the UE-specific reference signal of the first slot. The UE is able to determine the reference signals when multiple UEs share physical resource blocks. | 09-29-2011 |
| 20110243005 | Mobility cell measurement method and apparatus for mobile communications system - This invention provides a mobility cell measurement method and apparatus for a mobile communications system like as LTE-A. The method includes: performing inter-carrier synchronous transmission of a synchronous signal on at least two Component Carriers (CCs); sending information regarding one or more CCs among the at least two CCs that is capable of performing Carrier Aggregation (CA) with a carrier of a serving cell to a user equipment through higher-level signaling; and sending joint mobility measurement information to the user equipment of the serving cell, wherein the user equipment determines a CC for performing joint mobility measurement according to the information regarding the one or more CCs and the joint mobility measurement information and performs the joint mobility measurement on the determined CC. This increases the speed of the mobility measurement and reduces the power consumption of the user equipment. | 10-06-2011 |
| 20110268059 | APPARATUS AND METHOD FOR FEEDING BACK DATA RECEIVING STATUS - An apparatus and a method for feeding back data receiving status, applied to a system, are provided. The method includes sequencing, by a User Equipment (UE), downlink subframes for transmitting data with respect to each Component Carrier (CC), generating receiving status feedback information for the first X downlink subframes with respect to each CC according to the result of the sequencing, where X≦M, wherein M is the number of downlink subframes on each CC, and transmitting the receiving status feedback information generated with respect to each CC to a base station. Accordingly, the UE will not misinterpret the receiving status for the downlink subframes due to inconsistencies with the base station between transmitting and receiving feedback. This affects the Hybrid Automatic Repeat Request (HARQ) transmission, saves the uplink overheads occupied by the receiving status feedback information, and increases the uplink coverage area. | 11-03-2011 |
| 20120099434 | METHOD FOR TRANSMITTING MBSFN SUBFRAME CONFIGURATION INFORMATION OF NEIGHBORING CELLS - Disclosed is a method for transmitting MBSFN subframe configuration information of neighboring cells in a wireless system, the method comprises steps of: transmitting, by a base station of a serving cell, MBSFN subframe configuration information of the serving cell to a UE which accepts services from the serving cell via a broadcast control channel (BCCH); transmitting, by the base station of the serving cell, information on a subset relationship of MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell to the UE which accepts services from the serving cell via the broadcast control channel (BCCH); performing, by the UE, measurements on the neighboring cells according to the subframe configuration information of the serving cell and the information on the subset relationship of the MBSFN subframe configurations of the neighboring cells relative to the MBSFN subframe configuration of the serving cell. With the method of the present invention, the UE can learn about the MBSFN subframe configuration information of the neighboring cells in a more accurately manner. Therefore, more subframes can be measured to improve measurement precision. Meanwhile, the present invention is based on redefinition of messages in the existing method, and thus no extra signaling overhead will be introduced. | 04-26-2012 |
| 20120113850 | METHOD AND APPARATUS FOR MEASURING CHANNEL STATE INFORMATION - A method is provided for measuring CSI. A Macro UE determines a restricted measurement resource pattern for CSI measurement. The restricted measurement resource pattern is reported from the Macro UE to a Macro NodeB. The CSI of the restricted measurement resource pattern is measured. The CSI is reported from the Macro UE to the Macro NodeB for scheduling a data transmission resource of the Macro UE in the restricted measurement resource pattern according to the CSI. | 05-10-2012 |
| 20120113876 | METHOD AND AN APPARATUS FOR ALLOCATING AN ACK/NACK CHANNEL - A method for allocating an Acknowledgement/Negative Acknowledgement (ACK/NACK) channel by a Base Station (BS) in a Frequency Division Duplexing (FDD) system is provided. The method includes allocating downlink resources in one or more cells to a User Equipment (UE), transmitting, Physical Downlink Control Channel (PDCCH) information and downlink data using the downlink resources, allocating at least four ACK/NACK channels to the UE, receiving ACK/NACK information for the PDCCH information and the downlink data fed back by using two antennas from the UE, and performing re-transmission or transmitting new data according to the ACK/NACK information, wherein at least two of the at least four ACK/NACK channels are the same as at least two ACK/NACK channels allocated by the BS in a mode not using a Spatial Orthogonal Resource Transmit Diversity (SORTD) scheme, and the at least two of the at least four ACK/NACK channels are allocated to different antennas. | 05-10-2012 |
