Method and device for requesting almost blank subframes in heterogeneous networks

• Main Authors: HU, TECK, JIANG, QI, BAKER, MATTHEW P. J, SHEN, GANG
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2015
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

One embodiment of the invention provides a mechanism to assist the eNodeB of the second cell, for example macrocell eNodeB or femtocell eNodeB to determine the configuration of ABSs. To be specific, the eNodeB of the first cell sends a request signaling to the eNodeB of the second cell to inform of the requirement for ABSs. The eNodeB of the second cell receives the request signaling from the eNodeB of the first cell, and then it determines the pattern of ABSs and sends the pattern of ABSs in the form of bitmap through a signaling to the eNodeB of the first cell. As the requirement for ABSs is determined by the eNodeB of the first cell on the basis of the number of the UEs and/or the traffic load of the UEs which are near the edge of coverage area of the picocell, it can help the eNodeB of the second cell to determine the configuration of ABSs, i.e. the pattern of ABSs, so that the efficient resource utilization is achieved.