Idle state management

Abstract

Apparatus and systems, as well as methods and articles, may operate to enter an idle state of a wireless device for a selected amount of time responsive to a combined clear channel assessment indication.

1 . An apparatus, including
 a wireless communications device to communicate in a wireless communications network, the wireless communications device including one or more modules to:
 receive a wireless signal; 
 produce a first clear channel assessment (CCA) indicator that indicates if the wireless signal has a first set of characteristics; 
 produce a second CCA indicator that indicates if the signal has a second set of characteristics different than the first set; 
 produce a combined CCA indicator from the first and second CCA indicators; and 
 refrain from transmitting if the combined CCA indicator indicates that a wireless communications channel is busy. 
   
   
   
       2 . The apparatus of  claim 1 , wherein said combined CCA indicator is produced by performing an OR operation between the first and second CCA indicators. 
   
   
       3 . The apparatus of  claim 1 , further comprising filtering the combined CCA indicator to remove glitches of more than a selected time period. 
   
   
       4 . The apparatus of  claim 1 , further comprising at least one modem to provide the first and second CCA indicators. 
   
   
       5 . The apparatus of  claim 1 , further comprising at least one antenna for said receiving and transmitting. 
   
   
       6 . A method, including
 performing operations in a wireless communications device, the operations comprising:
 receiving a wireless signal; 
 producing a first clear channel assessment (CCA) indicator that indicates if the wireless signal has a first set of characteristics; 
 producing a second CCA indicator that indicates if the signal has a second set of characteristics different than the first set; 
 producing a combined CCA indicator from the first and second CCA indicators; and 
 refraining from transmitting if the combined CCA indicator indicates that a wireless communications channel is busy. 
   
   
   
       7 . The method of  claim 6 , wherein said producing the combined CCA indicator comprises determining if at least one of the first and second CCA indicators indicates activity on the wireless communications channel. 
   
   
       8 . The method of  claim 7 , further comprising transmitting if both the first and second CCA indicators indicate no activity on the wireless communications channel. 
   
   
       9 . The method of  claim 6 , further comprising filtering the combined CCA indicator to remove glitches of more than a selected time period. 
   
   
       10 . An article including a machine-accessible medium having associated information, wherein the information, when accessed, results in a machine performing:
 performing operations in a wireless communications device, the operations comprising:   receiving a wireless signal;   producing a first clear channel assessment (CCA) indicator that indicates if the wireless signal has a first set of characteristics;   producing a second CCA indicator that indicates if the signal has a second set of characteristics different than the first set;   producing a combined CCA indicator from the first and second CCA indicators; and   refraining from transmitting if the combined CCA indicator indicates that a wireless communications channel is busy.   
   
   
       11 . The article of  claim 10 , wherein the operation of producing the combined CCA indicator comprises determining if at least one of the first and second CCA indicators indicates activity on the wireless communications channel. 
   
   
       12 . The article of  claim 11 , wherein the operations further comprise transmitting on the wireless communications channel if both the first and second CCA indicators indicate no activity on the wireless communications channel. 
   
   
       13 . The article of  claim 10 , wherein the operations further comprise filtering the combined CCA indicator to remove glitches of more than a selected time period.