Nokia Corporation

Nokia Technologies Oy

Zhouyue Pi

Zhigang Rong

Lin L Ma

Mark W Cheng

Fei Zhou

Liangchi Hsu

Zhigang Liu

Steven Craig Greer

Jian Gu

Zhu Yuan

Apparatus, and an associated method, for facilitating operation of a radio communication system that provides for multi rate data communications, such as a CDMA 2000 system that provides for 1&#xd7;EV-DV communication services. A supplemental pilot, or control, signal generator embodied at a mobile station generates a supplemental pilot, or control, signal that is sent on a newly defined supplemental pilot, or control, channel. As the data rates of data communicated upon a reverse supplemental channel changes, corresponding changes are made to the power level of the reverse supplemental pilot, or control, signal.

Apparatus and an associated method for facilitating communications in a radio communication system that provides for data communications at multiple data rates

Apparatus, and an associated method, for facilitating operation of a radio communication system that provides for multi rate data communications, such as a CDMA 2000 system that provides for 1xEV-DV communication services. A supplemental pilot, or control, signal generator embodied at a mobile station generates a supplemental pilot, or control, signal that is sent on a newly defined supplemental pilot, or control, channel. As the data rates of data communicated upon a reverse supplemental channel changes, corresponding changes are made to the power level of the reverse supplemental pilot, or control, signal.

Various embodiments are disclosed relating to techniques to transmit data rate control signals for multicarrier wireless systems. According to an example embodiment, a wireless apparatus may be adapted to transmit at least a first data rate control (DRC) value via an in-phase channel and at least a second DRC value via a Quadrature-phase channel. The first DRC value may be associated with a first forward link carrier and the second DRC value may be associated with a second forward link carrier. In this manner, DRC values may be transmitted over both the I and Q channels, for example.

Techniques to transmit data rate control signals for multi-carrier wireless systems

Apparatus, and an associated method, for allocating radio resources in a radio communication system that provides for data communication services, e.g., reverse link communication services in which data is communicated by a mobile station to a network part of the communication system. A multi level control mechanism is provided in which a lower level radio airlink manager and an upper level radio airlink manager are used together to allocate resources to a mobile station to effectuate the communication service. Both centralized and distributed control is thereby provided.

Apparatus, and an associated method, for facilitating airlink resource management in a radio communication system

The present invention concerns methods for efficiently supporting Voice over Internet Protocol (VoIP) on the Forward Packet Data Channel (F-PDCH) in CDMA 2000 1xEV-DV systems. Active speech in VoIP is encoded using, for example enhanced variable rate codec (EVRC), which produces 171, 80 and 16 bits per 20 ms of speech for Rate 1, Rate &#xbd; and Rate &#x215b;, respectively. However, about 60% of the time a user is inactive during a speech session, so an inordinate amount of system bandwidth is comprised of rate &#x215b; VoIP packets. In one embodiment of the present invention the apparatus of the present invention identifies the Rate &#x215b; voice frame packets and discards them. In another embodiment of the present invention, the apparatus of the present invention identifies the Rate &#x215b; voice frame packets and selects some of them for further transmission. In both embodiments the efficiency of channel utilization is increased since the amount of channel band width used to communicate relatively little information, e.g., gaps of silence, is decreased.

Apparatus and method for efficiently supporting VoIP in a wireless communication system

An approach is provided for adaptively adjusting a threshold relating to a loading condition of a communication link. The threshold (e.g., rise over thermal (ROT) threshold) is adaptively adjusted the threshold based on an overshoot rate parameter that specifies number of times a target rate is exceeded and based on number of occurrences of an overshoot event.

Method and apparatus for providing adaptive thresholding for adjustment to loading conditions

An approach is provided for addressing in a multiple carrier communication system. In one embodiment, a group index is assigned to a group of terminals of a communication network. The group index permits sharing of addressing indices supported by the communication network for transmission of data to the group of terminals. In another embodiment, a plurality of terminals is classified using preamble indices corresponding to the terminals into one or more classes. A multi-user packet, which utilizes the preamble indices to activate only a class of the terminals for processing the multi-user packet, is generated.

Method and apparatus for providing addressing in a multi-carrier communication system

Disclosed herein are methods and apparatus for incorporation of a Reverse Link Control Hold Mode and MAC_ID assignment in a cdma2000 1xEV-DV communications system. The teachings herein provide for a reverse link Control Hold Mode for a cellular communications system, wherein a mobile station uses an R-PDCH channel with or without an F-PDCH channel being assigned; alternatively, where a mobile station uses a F-PDCH channel without an R-PDCH channel. A medium access control identification code (MAC_ID) assigned by a base station from a MAC_ID space to each one of a plurality of mobile stations; wherein the MAC_ID is assigned in an ascending (or descending) order from the MAC_ID space for a first group of mobile stations, and wherein the MAC_ID is assigned in a descending (or ascending) order from the MAC_ID space for a second group of mobile stations.

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San Diego, CA, United States of America

Zhouyue Pi