Maintenance of channel usage in a wireless communication system

1. A method implemented in a Code Division Multiple Access (CDMA) wireless device for communicating data with a network via a wireless communication link, the method comprising:

determining, by the wireless device, whether at least a portion of payload data is available for transmission;

in response to determining payload data is available, sending a request message over an access channel,

in response to the request message, receiving a traffic channel assignment message;

using a first set of traffic channels for transmission of the payload data in response to the traffic channel assignment message;

transmitting, by the wireless device, a first portion of the payload data over a first traffic channel of the first set of traffic channels; and

transmitting, by the wireless device, a second portion of the payload data over a second traffic channel of the first set of traffic channels,

wherein the payload data is transmitted via CDMA modulated radio signals.

2. The method of claim 1 , further comprising:

transmitting a message to release the first set of traffic channels after the payload data is transmitted.

3. The method of claim 2 , further comprising:

receiving an assignment of a second set of traffic channels, the second set of traffic channels including at least one traffic channel; and

receiving payload data over the second set of traffic channels.

4. The method of claim 2 , wherein the first set of traffic channels is released based upon a request message from the wireless access device.

5. The method of claim 1 further comprising:

maintaining an idle mode by sending timing information over a low-bandwidth non-traffic channel.

6. A Code Division Multiple Access (CDMA) mobile device comprising:

a processor configured to determine whether at least a portion of payload data is available for transmission and to send a request message via an access channel in response to determining payload data is available, and in response to the request message, the processor further configured to receive a traffic channel assignment message and to use a first set of traffic channels for transmission of the payload; and

a transceiver for transmitting a first portion of the payload data over a first traffic channel of the first set of traffic channels,

wherein said the transceiver transmits a second portion of the payload data over a second traffic channel of the first set of traffic channels and wherein the payload data is transmitted via Code Division Multiple Access (CDMA) modulated radio signals.

7. The mobile device of claim 6 , wherein the transceiver transmits a message to release the first set of traffic channels after the payload data is transmitted.

8. The mobile device of claim 7 , wherein the transceiver receives an assignment of a second set of traffic channels, the second set of traffic channels including at least one traffic channel and receives payload data over the second set of traffic channels.

9. The mobile device of claim 6 , wherein an idle mode is maintained by sending timing information over a low-bandwidth non-traffic channel.