Time-slotted data packets with a preamble
First Claim
1. An access unit for receiving a signal, said access unit comprising:
- a mobile phone receiver to receive said signal in a time slot of a shared channel, said signal comprising a control information portion and a payload data portion; and
a processor to;
determine, based on said control information portion, if said signal is directed to said receiver;
demodulate said payload data portion using a modulation type indicated in said control information portion in response to determining that said signal is directed to said receiver; and
determine a data rate for said payload data portion based on said control information portion.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and apparatus are used to support the transmission of data to a user over multiple allocated data channels. Data packets are transmitted in timeslots of the allocated data channels to corresponding target receivers without the need for explicitly assigning particular time-slots to a target user well in advance of transmitting any data packets in the time-slots. Instead, each data packet transmitted in a time-slot includes a header label or preamble indicating to which of multiple possible receivers a data packet is directed. The preamble also preferably includes decoding information indicating how a corresponding data payload of the data packet is to be processed for recapturing transmitted raw data.
25 Citations
17 Claims
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1. An access unit for receiving a signal, said access unit comprising:
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a mobile phone receiver to receive said signal in a time slot of a shared channel, said signal comprising a control information portion and a payload data portion; and a processor to; determine, based on said control information portion, if said signal is directed to said receiver; demodulate said payload data portion using a modulation type indicated in said control information portion in response to determining that said signal is directed to said receiver; and determine a data rate for said payload data portion based on said control information portion. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A base station for transmitting a signal, said base station comprising:
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a processor to allocate a time slot of a shared channel; said processor further to; generate said signal, wherein said signal comprises a control information portion and a payload data portion, said control information portion further comprising a modulation type and an indication of which of a plurality of receivers said payload data portion is directed; and include, in said control information portion, a data rate for said payload data portion; a modulator to modulate said signal using said modulation type; and a transmitter to transmit said signal in said allocated time slot. - View Dependent Claims (8, 9)
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10. A method for receiving a signal, said method comprising:
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receiving said signal in a time slot of a shared channel, said signal comprising a control information portion and a payload data portion; determining, based on said control information portion, to which of a plurality of receivers said signal is directed; determining a data rate for said payload data portion based on said control information portion; and demodulating said payload data portion using a modulation type indicated in said control information portion in response to determining that said signal is directed to a selected one of said plurality of receivers. - View Dependent Claims (11, 12, 13)
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14. A computer-readable storage medium having instructions stored thereon which when executed by a processor result in the following operations comprising:
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receiving said signal in a time slot of a shared channel, said signal comprising a control information portion and a payload data portion; determining, based on said control information portion, to which of a plurality of receivers said signal is directed; determining a data rate for said payload data portion based on said control information portion; and demodulating said payload data portion using a modulation type indicated in said control information portion in response to determining that said signal is directed to a selected one of said plurality of receivers. - View Dependent Claims (15, 16, 17)
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Specification