Methods and systems for setting CID mask length of a HARQ-MAP/SUB-MAP pointer IE in WiMAX systems

US8385261B2 · kind B2 · utility

Assignee

• QUALCOMM Incorporated · US

Inventors

• Kuo-Chun Lee · San Diego, US
• Patrick Lim · San Diego, US
• Tom Chin · San Diego, US
• Wei Zhang · Cupertino, US
• Yu Wang · San Diego, US
• Chun Woo Lee · Suwon-si, KR
• Fangqi Hu · San Diego, US
• Guangming Shi · San Diego, US
• Feng Guo · San Diego, US
• Ta-yan Siu · San Diego, US
• Doo Seok Kim · Santa Clara, US
• Jong Ro Park · San Diego, US

Key dates

• Filing date: Jan 22, 2009
• Grant date: Feb 26, 2013
• Expiry date: Jun 29, 2031

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04L27/2655
• WIPO field: Digital communication
• WIPO sector: Electrical engineering

Abstract

Methods and apparatus for setting the connection identifier (CID) mask length of a Hybrid Automatic Repeat-Request (HARQ)-MAP or a SUB-MAP pointer information element (IE) in a compressed downlink map (DL-MAP) of an orthogonal frequency-division multiple access (OFDMA) frame are provided in an effort to reduce the number of false indications in the CID mask, while also striving, as a secondary concern, to reduce the CID mask length. In this manner, an individual mobile station (MS) may not waste processing, battery power, or time interpreting a HARQ-MAP message or a sub downlink/uplink map (SUB-DL-UL-MAP) message that was not intended for this particular MS. For some embodiments where the CID mask length is set to be small, the control overhead (i.e., the size of the HARQ-MAP or the SUB-MAP pointer IE) may be decreased, and more of the OFDMA frame may be available for data traffic.