Patent application number | Description | Published |
20090275334 | METHOD, SYSTEM, TERMINAL, ACCESS NODE AND GATEWAY FOR HANDING OVER TERMINAL TO MACROCELL - The present invention provides a method and system for handing over a terminal to a macrocell and terminal, access node and gateway. The method includes: determining that the terminal is in a frequent handover state or a fast moving state; handing over the terminal to the macrocell according to the frequent handover state or the fast moving state and a preconfigured handover criterion. | 11-05-2009 |
20110013577 | METHOD AND NETWORK DEVICE FOR CONTROLLING USER EQUIPMENT ACCESS IN MULTI-FREQUENCY SYSTEM - A method for controlling user equipment (UE) access in a multi-frequency system in the field of communication is provided. The method includes the following steps. A network side receives an access preamble sent by a UE on one frequency. When the network side determines that the UE needs to access on another frequency, the network side notifies the UE to access by switching to another frequency. Network device is also provided at the same time. Therefore, the UE access can be controlled according to a practical situation of the UE or each frequency, and the flexibility of the multi-frequency system is enhanced. | 01-20-2011 |
20110085511 | Signal Encoding Method and Device, Method for Encoding Joint Feedback Signal - A signal encoding method and device and a method for encoding a joint feedback signal are provided. The signal encoding method includes the following steps. When two carriers are configured with multiple-input and multiple-output (MIMO), Hybrid Automatic Repeat Request-Acknowledgement (HARQ-ACK) signals of the two carriers are combined into a joint feedback signal. The joint feedback signal is mapped into a codeword according to a predetermined mapping relationship between signals and codewords. Therefore, through the method for combining and encoding feedback signals of two carriers for transmission on a code channel in a dual cell (DC)-MIMO mode, bit error ratio (BER) and detection error cost are decreased, power overhead is saved, and a cubic metric (CM) value of the system is not affected, thereby enhancing the performance of the system. | 04-14-2011 |
20110087945 | METHOD AND APPARATUS FOR ENCODING FEEDBACK SIGNAL - A method and apparatus for encoding feedback signals is provided. The method includes: encoding feedback signals of three carriers to output a bit sequence; and transmitting the bit sequence on a High Speed-Dedicated Physical Control Channel (HS-DPCCH). The step of encoding the feedback signals of the three carriers may specifically include: mapping the feedback signals of the three carriers into a codeword, in which the codeword can be selected from a codebook, and codewords in the codebook satisfy a particular code distance relationship. The method for jointly encoding feedback signals of three carriers in a Ternary Cell (TC) mode is provided. Feedback signals are transmitted over a single code channel. Therefore, power overhead is reduced, and system performance is improved. | 04-14-2011 |
20110188517 | METHOD AND APPARATUS FOR DETERMINING TRANSMIT POWER - A method and an apparatus for determining transmit power are disclosed. The method includes: determining an E-DPDCH gain factor in compressed mode according to the number of E-DPDCH required for initial transmission of data; and determining transmit power of E-DPDCH according to the E-DPDCH gain factor in compressed mode. The E-DPDCH gain factor in compressed mode is determined according to the number of E-DPDCH required for initial transmission of data, and therefore, the E-DPDCH gain factor in compressed mode is determined accurately, the transmit power of E-DPDCH is determined accurately according to the E-DPDCH gain factor, the waste of transmit power of E-DPDCH is reduced, and therefore the system capacity is improved. | 08-04-2011 |
20110317605 | Signal Encoding Method and Device, Method for Encoding Joint Feedback Signal - A signal encoding method and device and a method for encoding a joint feedback signal are provided. The signal encoding method includes the following steps. When two carriers are configured with multiple-input and multiple-output (MIMO), Hybrid Automatic Repeat reQuest-ACKnowledgement (HARQ-ACK) signals of the two carriers are combined into a joint feedback signal. The joint feedback signal is mapped into a codeword according to predetermined mapping relationship between signals and codewords. Therefore, through the method for combining and encoding feedback signals of two carriers for transmission on a code channel in a dual cell (DC)-MIMO mode, bit error ratio (BER) and detection error cost are decreased, power overhead is saved, and a cubic metric (CM) value of the system is not affected, thereby enhancing the performance of the system. | 12-29-2011 |
20120002749 | METHOD AND APPARATUS FOR ENCODING FEEDBACK SIGNAL - A method and apparatus for encoding feedback signal is provided. The method includes: encoding feedback signals of three carriers to output a bit sequence; and transmitting the bit sequence on a High Speed-Dedicated Physical Control Channel (HS-DPCCH). The encoding the feedback signals of the three carriers may specifically include: mapping the feedback signals of the three carriers into a codeword, in which the codeword can be selected from a codebook, and codewords in the codebook satisfy a particular code distance relationship. The method for jointly encoding feedback signals of three carriers in a Ternary Cell (TC) mode is provided. Feedback signals are transmitted over a single code channel. Therefore, power overhead is reduced, and system performance is improved. | 01-05-2012 |
20150257140 | METHOD, NETWORK SIDE DEVICE AND USER EQUIPMENT OF VARIABLE BANDWIDTH - The present invention provides a method, network side device and user equipment of variable bandwidth. The method includes: configuring a first type carrier and a second type carrier, wherein a chip rate of the first type carrier is 3.8 Mcps, a chip rate of the second type carrier is P*3.84 Mcps, and P is smaller than 1 and larger than 0; using the first type carrier and/or the second type carrier for communication. In this way, since the chip rate of the second type carrier is low and occupied bandwidth is small, the second type carrier may be suitable for non-standard bandwidth, thus utilization efficiency of bandwidth may be improved and waste of the bandwidth may be reduced. | 09-10-2015 |