Abstract:
Techniques for scheduling users for transmission on the uplink in a wireless communication system are described. A cell may perform interference cancellation for uplink transmissions and may observe lower effective noise and interference due to interference cancellation. The lower effective noise and interference may allow the cell to operate with a higher effective target load, which may support a higher overall throughput for the cell. In one design, an effective target load for a cell using interference cancellation may be determined, e.g., based on a target rise-over-thermal (RoT) for the cell and an interference cancellation efficiency factor. An available load for the cell may be determined based on the effective target load, which may be higher than a target load for the cell without interference cancellation. Users in the cell may then be scheduled for transmission on the uplink based on the available load.
Abstract:
Systems and methodologies are described that facilitate and/or effectuate transmission of circuit switched voice over packet switched networks. The systems and methodologies provide for the receiving a first packet originating from access terminals and/or user equipment, determining within which hybrid automatic repeat request (HARQ) the first packet is received, ascertaining an amount of delay that is applied to the first packet before the first packet is forwarded into a core circuit switched network; and establishing a periodic time interval within which to convey subsequent packets that originate from the communicating access terminal and/or user equipment.
Abstract:
In a wireless communication system in which a user using a mobile equipment requests a serving cell handoff from a source cell to a target cell, the mobile equipment monitors authorization for the handoff from the target cell. At the same time, the mobile equipment can decode data from either the source cell or the target cell. Upon receipt of authorization for the handoff, the mobile equipment sends confirmation of the handoff to the target cell.
Abstract:
Techniques for recovering a desired transmission in the presence of interfering transmissions are described. For successive equalization and cancellation (SEC), equalization is performed on a received signal to obtain an equalized signal for a first set of code channels. The first set may include all code channels for one sector, a subset of all code channels for one sector, multiple code channels for multiple sectors, etc. Data detection is then performed on the equalized signal to obtain a detected signal for the first set of code channels. A signal for the first set of code channels is reconstructed based on the detected signal. The reconstructed signal for the first set of code channels is then canceled from the received signal. Equalization, data detection, reconstruction, and cancellation are performed for at least one additional set of code channels in similar manner.
Abstract:
Systems and methodologies are described that facilitate supporting uplink soft handoff in a UMTS TDD wireless communication environment. A virtual active set (VAS) for each user device can be generated at the network side of the communication environment, and sectors listed in each VAS can be informed of their respective listings. Sectors in a user device's VAS can be provided with a scrambling code and resource assignments from a nominal sector serving the user device, which information can be employed to attempt to receive and demodulate uplink signals from the user device at all base stations in the VAS thereof. Additionally, such resources can be employed to transmit power control and reverse activity commands to the user device on the downlink.
Abstract:
Apparatus and method for power management in a wireless communication network include identifying a user equipment (UE) configuration as a stationary extra-long battery device configuration, receiving a measurement threshold adjustment message, and adjusting an idle mode cell measurement threshold based on the measurement threshold adjustment message.
Abstract:
Apparatus and methods are described herein for optimizing wireless communications using radio resource control (RRC) combining. An RRC request message includes a non-access stratum (NAS) service request. An RRC connection setup message can then be provided including a combination of information for configuring the RRC connection.
Abstract:
A method of wireless communication at a user equipment is disclosed in the present invention, comprising: compressing an uplink data packet; transmitting, the uplink data packet on a data channel to a network entity a plurality of times; receiving a downlink acknowledgement message from the network entity corresponding to the uplink data packet; and terminating uplink communication on the data channel based on receiving the downlink acknowledgement message.
Abstract:
A method of transmitting acknowledgements on certain slots of the R99 uplink DPCCH channel for traffic packets sent on the R99 downlink channel, by replacing the TPC bits by Ack bits transmitted with on-off keying, applying a pre-configured boost to the transmit power of the entire slot in which an Ack has to be transmitted, or to only the Ack symbol in that slot, and not applying any boost to slots not reserved for Ack/Nack transmission or slots in which a Nack has to be sent; and modifying the NodeB receiver algorithms to account for the extra power boost once the Ack/Nack detector detects that an Ack has been transmitted in a given slot.
Abstract:
A method for determining when transmissions of data and control information from a transceiver unit can be terminated prior to complete transmission of the data packets, in a system in which the receivers in the transceiver units attempt to decode the data packets prior to their complete receiption and send acknowledgment feedback about the success or failure of these decode attempts. The method consists of terminating the data transmission as well as the portion of the control transmission that is only required to enable decoding of the data transmission, as soon as the data transmission is acknowledged by its intended receiver, terminating the entire transmission (both data and control) as soon as both the following have occurred: the data transmission has already been terminated; the packet transmissions occuring during the same time interval that are intended for reception by the receiver within the transceiver unit have been received and an acknowledgment has been sent to indicate the reception.