Abstract: A method for reducing energy consumption of a base station is described. A first pilot channel is transmitted via a first antenna using a first downlink power amplifier. A second pilot channel is transmitted via a second antenna using a second downlink power amplifier. It is determined that no multiple-input and multiple-output users are in a cell corresponding to the base station. The second pilot channel is shut off.

Abstract: Wireless user equipment (UE) operating in a wireless communication system may operate in a state, for example, the CELL_FACH state in UMTS, that does not allow for soft handoff from one cell to another. This inability to engage in soft handover may lead to intercell interference at a non-serving cell when the UE transmits on its uplink in close proximity to the non-serving cell. Therefore, provided in the present disclosure is method of wireless communication, which includes receiving a neighbor cell identification set indicating one or more neighbor cells, receiving a relative grant channel resource index corresponding to a relative grant channel shared by at least one of the one or more neighbor cells, detecting intercell interference associated with a user equipment (UE) in the one or more neighbor cells, and transmitting a non-serving relative grant message to the UE on the relative grant channel.

Abstract: An apparatus and method for communication including determining an assignment for one of a plurality of symbol durations in a format combination; determining if at least one bit from one or more first upper channels is available if the assignment is associated with the one or more first upper channels and occupying the one of the plurality of symbol durations with the at least one bit, or if unavailable, occupying the one of the plurality of symbol durations with at least one bit from one or more second upper channels or another first upper channel, wherein the first upper channels and the second upper channels are different; and disabling transmission of format information; or including enabling a BTFD hypothesis testing mode; receiving one or more symbol durations on a physical channel; and attempting to decode the received symbol duration with a first hypothesis that a DCCH channel is not transmitted.

Abstract: The present disclosure presents a method and apparatus for handling primary scrambling codes (PSC) in a wireless network. For example, the disclosure presents a method for detecting, by a user equipment (UE) of a plurality of UEs, a PSC in search windows with different timing offsets, wherein the different timing offsets correspond to a plurality of small cells sharing the PSC in a coverage area of a macro cell, and transmitting, by the UE, a plurality of measurement reports corresponding to the different timing offsets. As such, primary scrambling codes (PSC) are handled in a wireless network.

Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, a primary stream (610) may be utilized to carry a primary data channel E-DPDCH (624), and a secondary stream (612) may be utilized to carry a secondary data channel S-E-DPDCH (620). Further, the primary stream (610) may be precoded utilizing a primary precoding vector, and the secondary stream (612) may be precoded utilizing a secondary precoding vector, with coefficients orthogonal to those of the primary precoding vector. The primary stream may include an enhanced control channel E-DPCCH (614) adapted to carry control information associated with both the primary data channel E-DPDCH (624) and the secondary data channel S-E-DPDCH (620).

Abstract: A method, an apparatus, and a computer program product for wireless communication are provided. The apparatus receives a transmission and transmits an Ack regarding the transmission. A packet transmitting apparatus begins a transmission of a packet and receives an Ack regarding the transmission. The Ack may indicate early decoding of a packet comprised in the transmission. This enables the packet transmitting apparatus to cease transmission of the packet prior to transmission of the entire packet. The Ack may be transmitted using at least one of applying a pre-configured boost to the transmit power of at least a portion of a slot in which the Ack is transmitted, modulating a codeword pattern onto the symbols that would normally be transmitted in the slot, and transmitting the Ack on DPDCH.

Abstract: Apparatus and methods for communicating in a wireless network include receiving a weight vector in a slot for providing closed loop transmit diversity to signals in a next slot, holding the weight vector over a plurality of slots following a transmission burst, and applying the weight vector to signals in at least one slot of a subsequent transmission burst in discontinuous transmit. Additional apparatus and methods for communicating in a wireless network include determining a weight vector based on signals received from a device to provide closed loop transmit diversity feedback to the device, holding the weight vector over a plurality of slots following receiving a transmission burst, and applying the weight vector for signals received in at least one slot of a subsequent transmission burst from the device.

Abstract: A system and method enable handover from a DC-HSUPA-capable node in a cellular wireless network to a non-DC-HSUPA-capable node. According to various aspects of the present disclosure, a handover may implement a legacy serving cell change procedure or an enhanced serving cell change procedure. In either case, signaling from the network to user equipment includes information to enable the user equipment to change or remove an Active Set when undergoing a handover from a cell with two uplink carriers and accordingly two Active Sets, to a cell with one uplink carrier and accordingly one Active Set.

Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In some particular aspects, an E-TFC selection process for selecting a transport format combination for an uplink MIMO transmission may take certain steps in the case that a UE is power- or buffer-limited. For example, in a rank 2 transmission, non-scheduled data is allocated only to the primary stream. If the allocated non-scheduled data is less than the determined primary stream transport block size, scheduled data is allocated to the primary stream in an amount not to exceed the determined primary stream TBS. Finally, scheduled data is allocated to the secondary stream in an amount not to exceed the determined secondary stream TBS.

Abstract: Disclosed are methods and apparatus for reducing UE's power consumption by controlling early decoding boundary. In one aspect, a UE is configured to receive a data or voice frame from a base station. The UE selects one or more quality metrics for determining decoding boundary of the received frame and computes the selected one or more quality metrics. The UE then determines a decoding boundary for the frame based on one or more computed quality metrics. The UE then decodes the received frames at the determined decoding boundary and determines whether the decoding of the frame was successful. If the early decoding of the frame was successful, the UE may terminate reception of the frame. If the early decoding of the frame was unsuccessful, the UE may adjust the decoding boundary and decodes the frame at the adjusted boundary.

Abstract: Aspects of the disclosure are directed to a method, apparatus, and computer software for wireless communication. In various examples, DTX is enabled for the transmission of voice frames corresponding to a circuit-switched voice call. That is, the voice frames may be transmitted during a portion of a transmission time interval TTI that is less than an entirety of the TTI (for example, during half of the TTI). The transmission may be suspended during a remainder of the TTI following the portion of the TTI.

Abstract: Apparatus and methods are described for selecting or identifying a first band number from one or more additional band numbers mapped to a frequency division duplexing (FDD) band used in universal mobile telecommunications (UMTS). The one or more additional band numbers may be different from a second band number assigned to the FDD band. Each of the one or more additional band numbers may correspond to a different factor N (e.g., N=2, N=4) for use in UMTS scaling. A signal indicative of the first band number may be transmitted to, for example, a network entity, where the signal indicates support of UMTS scaling operations in the FDD band using the factor N corresponding to the first band number.

Abstract: One feature provides for an apparatus, system, and method for enabling softer handover by a user equipment in a non-dedicated channel state, such as Cell_FACH state. A user equipment communicates with a base station via a first sector of the base station, and receives a preamble signature partition list. The user equipment determines that a second sector of the base station is available for softer handover, and selects a preamble signature from the preamble signature partition list corresponding to a softer handover configuration associated with the first sector and the second sector. The user equipment may then transmit a softer handover initiation message that includes the preamble signature while in a non-dedicated channel state, such as Cell_FACH.

Abstract: A method and apparatus for wireless communication may provide a multi-link RLC sublayer in an RNC capable of allocating RLC PDUs among a plurality of MAC entities for use in a Multi-Point HSDPA network. Some aspects of the disclosure address issues relating to out-of-order delivery of the RLC PDUs to a UE, such as unnecessary retransmissions. That is, the disclosed multi-link RLC may be capable of distinguishing between sequence number gaps that are caused by physical layer transmission failures and those caused merely by skew.

Abstract: In a communication system, user equipment (UE) conditionally performs uplink transmit diversity (ULTD) either by Switched Antenna Transmit Diversity (SATD) or Beamforming Transmit Diversity (BFTD) using a first antenna and a second antenna. Either a serving node or the UE determines that uplink transmit diversity is conditionally authorized. Either a serving node or the UE measures a value. The UE transmits using ULTD in response to determining that an enabling condition based on the value is satisfied. The UE can also disable uplink transmit diversity in response to determining that a disabling condition based on the value is satisfied. The disabling condition comprises a disabling threshold that equals the enabling condition comprising an enabling threshold with a threshold adjustment for hysteresis.

Abstract: Methods and apparatuses are provided for determining available uplink bandwidth as an achievable throughput for a link. An available link capacity of a link with a cell for a user equipment is estimated based on a communication quality measured in the cell. An available fraction of cell resources for the user equipment over the link is also estimated based at least in part on received assistance information. An available bandwidth of the cell is then estimated as an achievable throughput for the user equipment over the link as a function of the estimated available link capacity and the estimated available fraction of cell resources. Moreover, a network procedure can be performed based at least in part on comparing the achievable throughput to one or more thresholds.

Abstract: Apparatus and methods for wireless communication that includes measuring energy on a first path metric and second path metric, comparing the energy on the first path metric and second path metric to a predetermined threshold and determining if Dedicated Control Channel (DCCH) energy is present.

Abstract: Systems and methods for dynamically adjusting the transmission time interval (TTI) for a communications system are presented. The described aspects provide for dynamically adjusting the TTI in a communication session between a base station or nodeB and a wireless device or user equipment between a shorter TTI, which can provide increased data throughput and lower power consumption, and a longer TTI, which can provide more rugged communication link connections. By dynamically adjusting the TTI, the communications link can be optimized for the given communication channel conditions. Determinations, based on indicia related to the communications system conditions, can be employed in dynamic TTI adjustment. These determinations can be formed centrally at the Radio Network Controller (RNC), at the RNC supplemented with user equipment (UE) available information, or formed in a distributed manner between the RNC and UE across a communications system.

Abstract: Systems and methods for dynamically adjusting the transmission time interval (TTI) for a communications system are presented. The described aspects provide for dynamically adjusting the TTI in a communication session between a base station or nodeB and a wireless device or user equipment between a shorter TTI, which can provide increased data throughput and lower power consumption, and a longer TTI, which can provide more rugged communication link connections. By dynamically adjusting the TTI, the communications link can be optimized for the given communication channel conditions. Determinations, based on indicia related to the communications system conditions, can be employed in dynamic TTI adjustment. These determinations can be formed centrally at the Radio Network Controller (RNC), at the RNC supplemented with user equipment (UE) available information, or formed in a distributed manner between the RNC and UE across a communications system.

Abstract: Methods and apparatuses relating to wireless communication of a user equipment (UE) are provided including receiving downlink wireless communications from multiple cells in an active set, receiving at least one of scheduling information for one or more downlink transmissions or one or more non-serving resource grants from a first cell in the active set, and receiving one or more serving resource grants for uplink communications from a second cell in the active set. In the wireless network, a second cell can be assigned as an uplink serving cell for uplink communications with the UE that is different from a first cell assigned as a downlink serving cell for downlink communications with the UE, and downlink transmissions can be scheduled from the downlink serving cell to the UE, and/or one or more serving resource grants can be transmitted from the uplink serving cell to the UE.