Abstract: The present disclosure provides methods and apparatuses for improved UE communication mode determination by a network entity, such as a radio network controller, where multi-cell and multi-carrier communication is available to the UE in a wireless network. For example, in an aspect, methods and apparatuses are provided for determining whether a user equipment (UE) is in a soft handover region and a softer handover region, and where the UE is in such a region, predicting a future multi-cell performance of the UE assuming the UE will be served by a plurality of cells on a single carrier, predicting a future multi-carrier performance of the UE assuming the UE will be served by a plurality of carriers of a single cell, comparing the future multi-cell performance to the future multi-carrier performance, and transmitting a mode command to the UE based at least on the comparing.

Abstract: The present disclosure provides methods and apparatuses for improved Iub link congestion management based on a dynamic scaling of flow control request message transmission in multiflow wireless environments. For example, in an aspect, methods and apparatuses are provided for receiving, at a NodeB, a data request from one or more user equipment (UE), wherein each data request corresponds to a flow and the one or more UE is served by a plurality of NodeBs, generating a flow control request corresponding to each flow in response to each data request, and sending each flow control request to a radio network controller (RNC). Thereafter, a Node B may receive data in response to each flow control request, determine a congestion state based on a downlink delay from the RNC detected in the received data, and scale a subsequent one or more flow control requests based on the determined congestion state.

Abstract: Providing communication path information in a mixed communication network. A first message may be provided from a first device to a second device. The first message may request notification of characteristics of at least one communication path between the second device and a third device. The first device, the second device, and the third device may be coupled together in a mixed communication network. Accordingly, the first device may receive at least one message from the second device regarding the characteristics of the at least one communication path between the second device and the third device.

Abstract: In aspects of the present disclosure, a user equipment receives inter-NodeB multi-point transmissions, and a multipoint aggregation component detects a gap in the sequence numbers, delays transmitting a not acknowledged signal (NAK) by starting a NAK delay timer, and transmits, by a transceiver, NAK for the gap in sequence numbers in response to the NAK delay timer expiring and detecting that the gap has not been filled during the delaying. If the Medium Access Control (MAC) entity as the respective NodeB identifies itself to the Radio Link Control (RLC), out-of-order delivery (skew) can eventually be distinguished from genuine data loss before the NAK delay timer expires based upon tracking the highest sequence numbers received. Adaptive NAK delay timer can be performed by monitoring skew duration.

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

Abstract: A method and system for improving the reception of uplink transmissions in a heterogeneous wireless communication system includes a high-power node such as a macro-cell and a low-power node such as a femto-cell or pico-cell. To address an uplink imbalance where a nearby low-power node power controls a UE such that uplink transmissions of an HSDPA control channel are poorly received at the serving cell, an RNC can instruct the UE to boost its uplink transmit power, remove the UE from soft handover, or disable power control of the UE by the low-power node. To address inter-cell interference, the RNC can limit the UE transmit power and/or enable the victim cell to suppress the interference. Further, a common control channel can be used to power control UEs outside of the convention set of UEs available for power control.

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: 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: A method and apparatus for enhancing uplink operations in a CDMA system is provided. The method may include receiving a rate control value and a transmit power value from a node B, wherein the rate control value is determined through uplink scheduling by the node B, and wherein the transmit power value is selected by the node B to maintain a signal to interference plus noise (SINR) metric within a threshold for a pilot channel, transmitting control channel information at a first power level determined from the transmit power value, and using a first average power tracking unit to generate the first selected transmit power and transmitting data channel information at a second power level determined from both the rate control value and the transmit power value.

Abstract: An apparatus and method enables a dynamic change from one carrier to another in a wireless telecommunication system. In one example, user equipment receives a preconfiguration message adapted to enable the user equipment to be preconfigured for an initial carrier and a subsequent carrier. Here, the user equipment initially communicates over an air interface utilizing the initial carrier frequency. Upon the satisfaction of certain conditions, such as one of the initial carriers being heavily loaded or nearing its capacity, a Node B provides an order to the user equipment to switch from its initial carrier to the secondary carrier, which was preconfigured. In this way, relatively rapid carrier switching provides for enhanced load balancing largely controlled by the Node B.

Abstract: A communication device configured for dynamic switching between Multiple-Input and Multiple-Output (MIMO) and Dual-Cell High Speed Downlink Packet Access (DC HSDPA) is disclosed. The communication device includes a processor and instructions stored in memory. The communication device begins a connection setup for one or more wireless communication devices, obtains MIMO and DC HSDPA capabilities for the one or more wireless communication devices and optimizes the coexistence of MIMO and DC HSDPA.

Abstract: The present patent application discloses a method and apparatus for activating or de-activating a secondary carrier, comprising informing a serving radio network controller when a secondary carrier was activated or de-activated, receiving a confirmation from the serving radio network controller that non-serving NodeB cells have achieved synchronization, and scheduling a UE upon receiving confirmation. In another example, the present patent application discloses a method and apparatus for de-activating a secondary carrier, comprising controlling de-activation of the secondary carrier using high-speed shared control channel orders, receiving acknowledgement of said high-speed shared control channel orders, and informing a serving radio network controller when the secondary carrier was de-activated.

Abstract: Methods, systems and apparatuses for controlling radio links in a multiple carrier wireless communication system are disclosed. A method can include aggregating control functions from at least two carriers onto one carrier to form an anchor carrier and one or more associated secondary carriers; establishing communication links for the anchor carrier and each secondary carrier; and controlling communication based on the anchor carrier.

Abstract: Serving cell change procedures are provided from a target cell that instructs a mobile device to change its serving cell to the target cell. Receiving the serving cell change instruction from the target cell can help mobile device to receive the instruction in areas were a signal from a current serving cell is rapidly deteriorating. An acknowledgement can be sent from mobile device to target cell and can be based on a scrambling code change and/or can be based on a CQI31.

Abstract: Systems and methods for effectuating a signal carrier configuration are disclosed. In one embodiment, the method comprises receiving an order, determining a signal carrier on which the order was received, determining a signal carrier configuration based at least in part on the order and the determined signal carrier, and changing the state of one or more signal carriers to effectuate the signal carrier configuration.