Turbo HSDPA system

• US 8,811,273 B2
• Filed: 02/22/2006
• Issued: 08/19/2014
• Est. Priority Date: 02/22/2005
• Status: Active Grant

• Current Assignee: Texas Instruments, Inc.
• Original Assignee: Texas Instruments, Inc.
• Inventors: Schmidl, Timothy M., Onggosanusi, Eko N., Dabak, Anand G., Papasakellariou, Aris
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): Hsiung, Hai-Chang
• Application Number:
  US11/360,654
• Publication Number:
  US 20060187876A1
• Time in Patent Office: 3,100 Days
• Field of Search: 370/328
• US Class Current: 370/328
• CPC Class Codes: H04B 1/1615 Switching on; Switching off, e.g. remotely battery saving circuits associated with selective call operation H04W52/00; details of power consumption reduction in a PLL, H03L7/0802, H03L7/14, H03L2207/08, H03L2207/18; muting amplifiers by gain control see H03G3/34
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04B 7/2656 for structure of frame, burst
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04W 52/0229 where the received signal is a wanted signal
• CPC Class Codes: Y02D 30/70 in wireless communication networks

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.

Claims

1. 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 all pilot signals and control signals from at least another symbol of the plurality of symbols; and

transmitting the packet.

2. A method as in claim 1, comprising the step of forming pilot and control signals in a second symbol of the plurality of symbols, wherein the second symbol is adjacent in time to the first symbol.

3. A method as in claim 1, wherein the step of transmitting comprises transmitting the packet during a transmit time interval (TTI).

4. A method as in claim 1, wherein each symbol of the plurality of symbols is an orthogonal frequency division multiplex (OFDM) symbol.

5. A method as in claim 1, wherein a transmit power for the pilot signals is greater than a transmit power for the control signals.

6. A method of communicating with a wireless transceiver, comprising the steps of:

receiving a plurality of symbols in a packet;

receiving pilot and control signals in a first symbol of the plurality of symbols;

receiving data signals excluding all pilot signals and control signals from at least another symbol of the plurality of symbols; and

decoding the packet.

7. A method as in claim 6, comprising the step of receiving pilot and control signals in a second symbol of the plurality of symbols, wherein the second symbol is adjacent in time to the first symbol.

8. A method as in claim 6, wherein the step of receiving a plurality of symbols in a packet comprises receiving the packet during a transmit time interval (TTI).

9. A method as in claim 6, wherein each symbol of the plurality of symbols is an orthogonal frequency division multiplex (OFDM) symbol.

10. A method as in claim 6, wherein a transmit power for the pilot signals is greater than a transmit power for the control signals.