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公开(公告)号：SG147429A1
公开(公告)日：2008-11-28
申请号：SG2008075715
申请日：2005-05-19
Applicant: QUALCOMM INC
Inventor： AMERGA MESSAY , EMANI CHALAPATHI RAO
Abstract: MAINTAINING AND SEARCHING SETS OF CELLS IN A WIRELESS COMMUNICATION SYSTEM For cell measurement, a wireless device categorizes cells whose identities are known to the device into multiple sets. The wireless device may obtain these cells from the system via signaling and/or detect these cells via searches. Different sets of cells may be associated with different levels of importance (e.g., for handoff), require different amounts of processing for measurements, and so on. Each set is associated with a particular measurement rate. Cells deemed to be more important (e.g., for handoff) are measured more frequently. Cells deemed to be less important and/or require more processing for measurements (e.g., cells with unknown timing) are measured less frequently. The wireless device performs searches and makes measurements for the cells in each set at the measurement rate selected for that set
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公开(公告)号：BRPI0511278A
公开(公告)日：2007-12-04
申请号：BRPI0511278
申请日：2005-05-19
Applicant: QUALCOMM INC
Inventor： AMERGA MESSAY , EMANI CHALAPATHI RAO
Abstract: For cell measurement, a wireless device categorizes cells whose identities are known to the device into multiple sets. The wireless device may obtain these cells from the system via signaling and/or detect these cells via searches. Different sets of cells may be associated with different levels of importance (e.g., for handoff), require different amounts of processing for measurements, and so on. Each set is associated with a particular measurement rate. Cells deemed to be more important (e.g., for handoff) are measured more frequently. Cells deemed to be less important and/or require more processing for measurements (e.g., cells with unknown timing) are measured less frequently. The wireless device performs searches and makes measurements for the cells in each set at the measurement rate selected for that set.
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公开(公告)号：BR0309157A
公开(公告)日：2005-04-26
申请号：BR0309157
申请日：2003-04-11
Applicant: QUALCOMM INC
Inventor： RAY-CHAUDHURI SIDDHARTHA , HSU CHIH-PING , EMANI CHALAPATHI RAO , LIN JEREMY , SINGH GURDEEP
Abstract: Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.
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公开(公告)号：AU2003224969A1
公开(公告)日：2003-10-27
申请号：AU2003224969
申请日：2003-04-11
Applicant: QUALCOMM INC
Inventor： RAY-CHAUDHURI SIDDHARTHA , HSU CHIH-PING , EMANI CHALAPATHI RAO , LIN JEREMY , SINGH GURDEEP
Abstract: Various techniques are disclosed for unambiguously determining and tracking frame offset in asynchronous wireless communication user equipment. The user equipment determines the unambiguous connection frame number of a downlink channel. The equipment then determines frame timing information for neighbor cells. The frame timing information for the primary common control physical channel and uplink dedicated physical channels is determined. The frame timing is determined as a coarse resolution frame offset in conjunction with a fine resolution chip offset. The frame numbering information for the uplink and downlink dedicated physical channels and the primary common control physical channel is also determined. Then the frame number and timing information is updated using a counter accurate to one chip resolution. The frame offset is updated if the number of chips underflows or overflows a predetermined window. Frame timing may be updated by updating only the fine chip offset or may be completely determined.
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