| Patent application number | Description | Published |
|---|
| 20100142640 | METHOD AND SYSTEM FOR SELECTING A PRE-CODING MATRIX - A method for selecting a pre-coding matrix, and a device and a telecommunication system for implementing the method are provided. The method includes calculating a effective signal noise ratio (SNR) at each layer for each pre-coding matrix, comparing the lowest SNR at each layer for each pre-coding matrix against the threshold SNR, selecting a proper pre-coding matrix, and considering high and low SNRs of a system during selection of a pre-coding matrix to achieve good pre-coding effects and improve the system performance. | 06-10-2010 |
| 20120252515 | Coordinated scheduling method and system in coordinated multi-point transmission - The present disclosure provides a coordinated scheduling method and system in coordinated multi-point transmission. The method includes: a central control cell of a region determines priorities of users to be scheduled in all coordinated cells according to user information from other coordinated cells in the region; the central control cell schedules users in each coordinated cell according to the determined priorities and informs a corresponding coordinated cell of the information on a user that is finally determined to be scheduled; and after receiving the scheduling information from the central control cell, the corresponding coordinated cell schedules a user in corresponding time and frequency resources. The present disclosure ensures performance of a user with the highest priority, further, considering the performance of the whole system, scheduling is performed in a scheduling stage according to a principle that the subsequent users to be scheduled should cause as little interference on the scheduled users as possible, therefore, the interference between scheduled users is effectively reduced, and the capacity of the system is greatly increased. | 10-04-2012 |
| 20120322499 | Method and system for handover based on radio resource allocation database - The disclosure discloses a method for handover based on a radio resource allocation database. The method includes that the radio resource allocation database is constructed and dynamically maintained; after receiving a handover request from a User Equipment (UE), a Base Station (BS) determines in the database a Radio Access Technology (RAT) and the corresponding carrier frequency resources suitable for a current communication condition of the UE for the UE according to a handover reason in the handover request, and notifies the UE of information regarding the determined RAT and information regarding the corresponding carrier frequency resource; and the UE performs QoS verification on the RAT and the corresponding carrier frequency resources notified by the BS, and switches to the corresponding carrier frequency with the RAT notified by the BS when the QoS on the RAT and the corresponding carrier frequency resources is superior to that of current communication. Meanwhile, the disclosure further discloses a system for handover based on a radio resource allocation database. The disclosure improves a resource usage rate and the QoS of a current communication system. The disclosure enables the UE to complete the handover quickly, such that user experience is improved. | 12-20-2012 |
| 20130121268 | Method and Device for Adaptive Adjusting Uplink and Downlink Bandwidth - The present invention discloses a method for adaptively adjusting uplink and downlink bandwidth, which includes: a base station counting a usage status of the uplink and downlink bandwidth in a preset time, and obtaining a bandwidth amount ΔBW | 05-16-2013 |
| 20130137445 | Method and apparatus for allocating spectrum - A method and an apparatus for allocating spectrums are provided in the disclosure. The method includes: reconfigurable spectrums for a target group domain are calculated, wherein said reconfigurable spectrums contain one or more of a dedicated spectrum, a reusable spectrum and a loanable spectrum; during the system reconfiguration, spectrums are allocated to cells of the target group domain in a non-overlap region after spectrums are allocated to cells of the target group domain in an overlap region according to the reconfigurable spectrums. By use of the disclosure, the spectrum allocation can be implemented during the system reconfiguration, and interference can be effectively suppressed. | 05-30-2013 |
| 20130221537 | SEMICONDUCTOR DEVICE AND ELECTRONIC APPARATUS - A semiconductor device is provided in the present invention. The semiconductor device includes a silicon substrate, configured to bear a chip; a power management module arranged inside the silicon substrate, configured to convert a power supply voltage to an input voltage required by the chip; and an interconnecting system, configured to receive the power supply voltage, transmit the power supply voltage to the power management module, and transmit the input voltage to the chip. With the semiconductor device according to the embodiments of the present invention, the power supply voltage can be directly sent from the silicon substrate to the chip after being generated, thereby shortening the power supply link and reducing the power supply/ground noise. | 08-29-2013 |
| 20130260780 | Method and apparatus for transforming working mode in cognitive radio system - The disclosure discloses a method and an apparatus for transforming a working mode in a Cognitive Radio (CR) system, which are used for solving the technical problem that a subsystem maliciously occupies the spectrum resources which are temporarily unused by other system in a system adopting a CR technology. In the disclosure, a network side measures the demand degree of each cell on borrowed spectrum and sets a conditions of enabling and disabling the CR working mode to determine whether to perform working mode transformation on the cell and specify a network allocation method for a mobile terminal in a corresponding working mode, so as to coordinate the allocation of the spectrum resources, and avoid the abuse of the borrowed spectrum resources; the CR working mode of the cell with low demand degree is disabled by the network side; the borrowed spectrum resources of the cell are released; and therefore, more borrowed spectrum resources are available to the other cells having a higher demand degree on the borrowed spectrum, and the overall performance of the system is improved. | 10-03-2013 |
| 20140038659 | Method and Device for Controlling Power of Cognitive Radio System - The disclosure provides a method and a device for controlling power of a cognitive radio system. The method comprises: measuring a system parameter of a cognitive radio system and a system parameter of a TV system located in an adjacent channel of the cognitive radio system; determining a maximum transmission power of the cognitive radio system according to the system parameter of the cognitive radio system and the system parameter of the TV system; controlling an actual transmission power of the cognitive radio system to be less than the maximum transmission power. In the disclosure, interference to the TV system can be reduced maximally, so that the sensitivity of a receiver inside the TV system is guaranteed. | 02-06-2014 |
