Turbo HSDPA system
AssigneeTexas Instruments Incorporated
InventorsTimothy Schmidl, Eko Onggosanusi, Anand Dabak, Aris Papasakellariou
Life of this patent
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Abstract
A method of power saving for a wireless transceiver (FIGS. 1 and 2) is disclosed. The transceiver has an active power mode (504) and a reduced power mode (510). The transceiver is operated in the reduced power mode (510) and monitors transmissions from a remote wireless transmitter while in the reduced power mode. The transceiver identifies a transmission from the remote wireless transmitter by a transceiver identity included in the transmission (FIG. 6, UE identification). The transceiver transitions to the active power mode (512) in response to identifying the transmission.
Claims26
A method of power saving in a transceiver during a time interval, the time interval having a plurality of signals, comprising the steps of:
- receiving a first signal of the plurality of signals in an active power mode;
- determining if there are other signals of the plurality of signals for the transceiver in response to the first signal;
- operating the transceiver in the active power mode when there are other signals of the plurality of signals for the transceiver;
- and
- operating the transceiver in a reduced power mode when there are no other signals of the plurality of signals for the transceiver.
A method of transmitting symbols, comprising the steps of:
- forming a plurality of symbols in a packet;
- forming pilot and control signals in a first symbol of the plurality of symbols;
- excluding pilot signals from at least another symbol of the plurality of symbols;
- and
- transmitting the packet.
A method of transmitting an orthogonal frequency division multiplex (OFDM) signal, comprising the steps of:
- transmitting on a plurality of control channels during a transmit time interval;
- and
- transmitting a counter during the transmit time interval to indicate a number of the plurality of control channels in the transmit time interval.
A method of transmitting an orthogonal frequency division multiplex (OFDM) signal during a transmit time interval (TTI), comprising the steps of:
- transmitting a plurality of control channels during a transmit time interval, each control channel corresponding to a respective user;
- and
- transmitting a counter associated with each respective control channel to indicate a size of said each respective control channel of the plurality of control channels.
A method of transmitting a broadcast orthogonal frequency division multiplex (OFDM) signal, comprising the steps of:
- determining a plurality of broadcast channels;
- transmitting on a set of broadcast channels within the plurality of broadcast channels during a transmit time interval (TTI);
- and
- transmitting a broadcast channel bitmap to indicate the set of broadcast channels are active during the transmit time interval.
A method for power saving during a communications session in which packet transmission is scheduled at predetermined time intervals, comprising the steps of:
- operating a transceiver having an active power mode and a reduced power mode;
- operating the transceiver in the active power mode at the predetermined time intervals of the communications session;
- and
- operating the transceiver in the reduced power mode during remaining time intervals of the communications session.
A method of transmitting a control channel, comprising the steps of:
- transmitting a first part of the control channel that is encoded;
- and
- transmitting a second part of the control channel that is encoded differently than the first part.
Dependencies are inferred from the claim text.