Abstract:
A method is provided for adjusting timing of transmissions within a wireless communications system. The method comprises receiving a request for a timing adjustment and adjusting timing of a DPCH in a first frame. The timing of at least one of an E-RGCH and an E-HICH is then adjusted in a second frame associated with the first frame.
Abstract:
A plurality of decoding metrics for a current frame may be generated based on a correlation set for a current frame and a correlation set for at least one previous frame. Whether a signal is present on a control channel may then be determined based on the generated decoding metrics.
Abstract:
A method is provided for controlling communications between a base station and a mobile device when transmission gaps occur. The method comprises skipping a transmission that overlaps with the transmission gap. An alternative method comprises postponing the transmission to the next available transmission time.
Abstract:
In the method, a current channel condition is estimated based at least in part on a previous channel quality indicator and power control information received after the previous channel quality indicator.
Abstract:
In a method of controlling transmit power for a user call migrating between a first entity and a second entity in a base station of a wireless communication system, power control may be performed, as a call of the user is migrated from the first to the second entity, or vice versa, based on an adjustment ratio value. Parameters for balancing transmit power as the user call is migrated from the first entity to the second entity may be selected so that any difference in transmit power does not adversely affect system performance.
Abstract:
Whether a receiver supports blind data channel detection is determined, and transmission of control channel information associated with a data channel is disabled if the determining step determines the receiver is capable of detecting the data channel without the use of control channel information. Data is transmitted to the receiver on the data channel without the control channel information after disabling of the transmission of the control channel information.
Abstract:
In a method of detecting whether a transmitted data frame is a discontinuous transmission (DTX) frame, a signal metric 285, 380 corresponding to the transmitted data frame is generated in a decoding operation 276, 376 used to decode the data frame from a signal carrying the frame that is received by a base station receiver 150. A signal energy of the transmitted data frame is determined 182 based on the signal metric, and used for determining 186, 188 whether the transmitted data frame is a DTX frame.
Abstract:
A method is provided for controlling communications between a base station and a mobile device. The method comprises determining the actual transmission gap and only discarding slots and / or frames that overlap with the actual transmission gap. Slots and/or frames that overlap with a scheduled transmission gap but are outside the actual transmission gap are transmitted.
Abstract:
In a 3GPP standards Release 6 UMTS system, in order to avoid searching at NodeB for a maximum E-DPCCH-associated metric at discrete possible valid index values, or over disjoint possible valid index regions, at the UE the three different sources of information, the fixed number bits that comprise the RSN, TFI and the H-bit components of the E-DPCCH bit field, are mapped so that the decimal equivalents of the possible E-DPCCH indices lie within a continuous range of values.
Abstract:
A receiver device for use in a wireless communication system (20) includes a rake receiver (32) and an equalizer receiver (34). A controller (36) selects one of the rake receiver (32) or the equalizer receiver (34) for processing a received signal. In some situations, the rake receiver (32) will provide better performance. In other situations, the equalizer receiver (34) will provide better performance. One embodiment includes a plurality of equalizers (34A, 34B). One of the equalizers processes a data packet from a received signal while another one of the equalizers trains for processing a signal from a subsequent scheduled user. Another example embodiment includes controlling an equalizer length based on a delay span or another selected channel metric.