Abstract:
PROBLEM TO BE SOLVED: To provide transmit power control techniques for a small base node such as a Home Base Node (HBN), or femto cell to prevent co-channel or adjacent channel interference, or to limit its coverage area.SOLUTION: Once the power is set, the HBN signals to served Home User Equipment (HUE) its Common Pilot Channel (CPICH) transmit power for accurate path loss estimation. When this power is outside of the permissible range, the HBN adjusts other parameters (such as a Random Access Channel (RACH) constant value) to compensate for the error in the signaled CPICH power, and thus compensate the error in the process of determining path loss. Similarly, if the uplink sensitivity is adjusted to prevent interference, parameters would also be adjusted and signaled to the HUE to reflect the link imbalance.
Abstract:
PROBLEM TO BE SOLVED: To provide transmit power control techniques for a small base node such as a Home Base Node (HBN), or femto cell to prevent co-channel or adjacent channel interference, or to limit its coverage area.SOLUTION: Once the power is set, the HBN signal to served Home User Equipment (HUE) its Common Pilot Channel (CPICH) transmit power for accurate path loss estimation. When this power is outside of the permissible range, the HBN adjusts other parameters (such as a Random Access Channel (RACH) constant value) to compensate for the error in the signaled CPICH power, and thus compensate the error in the process of determining path loss. Similarly, if the uplink sensitivity is adjusted to prevent interference, parameters would also be adjusted and signaled to the HUE to reflect the link imbalance.
Abstract:
PROBLEM TO BE SOLVED: To provide methods, apparatuses, and computer program products for facilitating a beacon-assisted handover from a macro network to a femto cell during an active call.SOLUTION: A femto cell management system 422 assigns a unique identifier to a femto cell 424, and the femto cell 424 utilizes the unique identifier to broadcast a beacon at a frequency different from the operating frequency of the femto cell 424. A wireless terminal 430 receives from a macro network 410 a control message directing the wireless terminal 430 to scan particular frequencies. The wireless terminal 430 subsequently provides the macro network 410 with a report identifying attributes obtained from the scan, the report including attributes associated with the beacon. The macro network 410 then performs a handover from the macro network 410 to the femto cell 424 as a function of the attributes.
Abstract:
PROBLEM TO BE SOLVED: To provide a system and method that facilitates management of an automatic neighbor relation function in wireless networks.SOLUTION: The system can include components and/or devices that ascertain whether or not to add or remove a neighbor relation on the basis of information associated with an operations and management system. Here, the operations and management system dispatches addition or removal reports to a base station. The base station establishes, updates, and/or maintains a neighbor relations table and/or a set of neighbor relations that includes neighbor relations between cells.
Abstract:
método e equipamento para ajusta de parâmetro automatizado para compensar auto-ajuste de potência de transmissão e nível de sensibilidade no nó b. um nó base pequeno, como um nó base caseiro (hnb), ou célula femto, pode reduzir a sua potência de transmissão a fim de evitar a interferência do co-canal ou canais adjacentes, ou para limitar sua área de cobertura. uma vez que a potência é definida, a hnb sinaliza para um equipamento de usuário caseiro (hue) servido sua potência de transmissão do canal piloto comum (cpich) esta potência está fora da faixa permitida, a hnb ajusta outros parâmetros (tais como valor constante do canal de acesso aleatório (rach) para compensar o erro na potência cpich sinalizada e, assim, compensar, naquele processo o erro na determinação da perda de trajeto. da mesma forma, se a sensibilidade uplink for ajustada, para evitar interferências, os parâmetros também seriam ajustados e sinalizados para a hue para refletir o desequilíbrio do link.