| Patent application number | Description | Published |
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| 20100058300 | TEST COVERAGE ANALYSIS METHOD AND APPARATUS - A test coverage analysis method and corresponding apparatus are disclosed, wherein, by executing the program under test using one or more test cases, generating one or more heapdump files containing the call stack information of the program under test, and analyzing the call stack information in the one or more heapdump files, the coverage information of the one or more test cases in terms of functions in the program under test is obtained. | 03-04-2010 |
| 20120093124 | METHOD AND DEVICE FOR SETTING DEMODULATION REFERENCE SIGNALS IN WIRELESS COMMUNICATION SYSTEM - The present invention provides a method of arranging demodulation reference signals in a radio communication system that communicates according to a coordinated scheme. Demodulation reference signals and data are transmitted to a receiving terminal through time/frequency resources of the radio communication system using a resource block as a base unit. The method includes arranging at least two orthogonal DM-RSs in two edge OFDM symbols for resource blocks of respective cells, a frequency offset existing between cells at positions of the orthogonal DM-RSs in the edge OFDM symbols, performing puncturing at positions corresponding to the orthogonal DM-RSs of the other cells in the edge OFDM symbols of the respective cells, arranging superimposing DM-RSs in the two edge OFDM symbols in a resource block of one cell and arranging the superimposing DM-RSs at positions corresponding to the resource blocks of the other cells, wherein positions of the superimposing DM-RSs are set between the positions of the orthogonal DM-RSs in the respective edge OFDM symbols. | 04-19-2012 |
| 20120113842 | WIRELESS COMMUNICATION SYSTEM AND DOWNLINK RECEIVING POWER DETECTION METHOD THEREFOR - A wireless communication system and a method for detecting downlink receiving power in the system are disclosed. N cells in the system respectively transmit data to at least one receiving terminal via N resource blocks using the same time-frequency resources; multiple channel state information reference signals (CSI-RSs) of a corresponding cell are set in each resource block, and orthogonality is maintained among the CSI-RSs of all the cells, wherein N is an integer greater than 1. Said method includes: an additional demodulation reference signal (DM-RS) used for indicating a receiving power is set in a puncture position in the resource block of the first cell which corresponds to a CSI-RS set in a resource block of another cell; and the receiving power of said first cell is detected according to said additional DM-RS. By using said method, the receiving power of a single cell in N cells can be detected, and the system overhead is not increased. | 05-10-2012 |
| 20120115539 | METHOD AND DEVICE FOR ADJUSTING TIMING ADVANCE IN UPLINK MULTIPLE POINTS RECEPTION - A method and device for adjusting a timing advance in a communication system composed of a mobile terminal and multiple base stations is provided. The method includes steps: the multiple base stations measures channel latencies and powers of channel responses between the mobile terminal and the multiple base stations separately; the non-serving base station in the multiple base stations reports the channel latency and the power measured to a serving base station; and the serving base station determines the timing advance of the uplink of the mobile terminal according to the channel latency and the power received and the channel latency and the power which are measured by the serving base station itself, and informs the mobile base station of the timing advance. By using the method and the device, the useful power received by the uplink multi-base stations can be optimized, and the interference power can be effectively reduced. | 05-10-2012 |
| 20130039162 | CODE DIVISION MULIPLEXING METHOD, TRANSMITTING DEVICE AND RECEIVING DEVICE USING THE METHOD - There are provided a code division multiplexing method as well as a transmitting device and a receiving device using the method. The method performs code division multiplexing of a plurality of signals by using a code matrix, the code matrix comprising a plurality of code words, the number of which is the same as the number of the plurality of signals, with each code word comprising a plurality of chips, the method comprising: multiplying each signal of the plurality of signals by each chip of a corresponding code word respectively; and calculating a sum of products of the respective chips in each code word and the corresponding signals to form a plurality of multiplexed signals, wherein, corresponding chips of the respective code words constitute multiple sets of chips, and only one term in differences or sums of any one set of chips and one set of chips among other sets of chips is not zero. The code division multiplexing method as well as the transmitting device and the receiving device according to the present disclosure can make the influence of the selectivity of channels when de-multiplexing is performed small, thus improving the channel transmission quality. | 02-14-2013 |
| 20130044580 | ORTHOGONAL CODES BASED CODE DIVISION MULTIPLEXING METHOD, MULTIPLEXING DEVICE, AND DE-MULTIPLEXING DEVICE - The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved. | 02-21-2013 |
| 20130275953 | TEST COVERAGE ANALYSIS - A test coverage analysis method and corresponding apparatus are disclosed, wherein, by executing the program under test using one or more test cases, generating one or more heapdump files containing the call stack information of the program under test, and analyzing the call stack information in the one or more heapdump files, the coverage information of the one or more test cases in terms of functions in the program under test is obtained. | 10-17-2013 |
| 20140071936 | METHOD OF SCRAMBLING SIGNALS, TRANSMISSION POINT DEVICE AND USER EQUIPMENT USING THE METHOD - Method of scrambling signals, transmission point device and user equipment using the method are provided. The method is for scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources, and comprises the steps of: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, the blind detection for the UE is enabled and the signaling overhead is reduced. | 03-13-2014 |
| 20140347971 | COMMUNICATION METHOD AND COMMUNICATION APPARATUS - The present disclosure provides an orthogonal codes based code division multiplexing method of performing the code division multiplexing of demodulation reference signals in multiple layers of resource blocks by using orthogonal matrices, the method comprising: changing the order of chips in particular rows of a first orthogonal matrix to obtain a second orthogonal matrix with the changed order of chips; and multiplying the chips in respective rows of the second orthogonal matrix by the demodulation reference signals in corresponding layers of resource blocks correspondingly in the time direction to obtain code division multiplexing signals. The technical scheme of the present disclosure can improve the power jitter situation of downlink signals on the time, thereby the usage efficiency of the power amplifier at the base station side can be improved. | 11-27-2014 |
| 20150043370 | Inter-Cell Interference Detection for Inter Portable Long Term Evolution Local Area Network Interference - The long term evolution (LTE) of the third generation partnership project may benefit from a long term evolution local area network (LTE-LAN) system, such as a portable LTE-LAN system. Moreover, an LTE-LAN system may benefit from inter-cell interference (ICI) detection for inter portable LTE-LAN interference. A method can include measuring, with a first local access point, a first power of a first uplink sequence and a second power of a second uplink sequence from at least one user equipment. The method can also include determining that the first local access point and a second local access point are interfering with one another based on a comparison of the first power and the second power. | 02-12-2015 |
| 20150063139 | Apparatus and Method for Interference Management between Cellular and Local Area Networks - According to an example embodiment of this application, a method may include determining a distance from a network element; and assigning at least one of a downlink resource or an uplink resource to the network element based at least in part on the determined distance, wherein the assigned resource is used for both a downlink and an uplink communication of the network element. | 03-05-2015 |
