发明名称 |
Enhanced polling method for preventing deadlock in a wireless communications system |
摘要 |
A method of polling in a wireless communications system includes prohibiting polling within a first predetermined period and triggering a poll function while polling is prohibited. After the first predetermined period has expired the method determines that there are no protocol data units (PDUs) scheduled for transmission or re-transmission and that there is at least a transmitted PDU that is not acknowledged yet, and selects a PDU to schedule for re-transmission to fulfill the poll function. |
申请公布号 |
US9497779(B2) |
申请公布日期 |
2016.11.15 |
申请号 |
US200812032703 |
申请日期 |
2008.02.18 |
申请人 |
INNOVATIVE SONIC LIMITED |
发明人 |
Jiang Sam Shiaw-Shiang |
分类号 |
H04J3/16;H04W74/06;H04L1/16;H04L1/18 |
主分类号 |
H04J3/16 |
代理机构 |
Blue Capital Law Firm, P.C. |
代理人 |
Blue Capital Law Firm, P.C. |
主权项 |
1. A method of polling in a wireless communications system that employs protocol data units (PDUs) and service data units (SDUs), the method comprising:
prohibiting polling before Timer_Poll_Prohibit expires; triggering a poll function while polling is prohibited; after Timer_Poll_Prohibit expires, if there is no PDU scheduled for transmission or re-transmission and if there is at least a transmitted PDU that is not acknowledged yet, selecting a PDU to schedule for re-transmission to fulfill the poll function; and after Timer_Poll_Prohibit expires, if there is no PDU scheduled for transmission or re-transmission and if there is no transmitted PDU that is not acknowledged yet, no PDU is selected to fulfill the poll function. |
地址 |
Ebene MU |