Invention Grant
US09271203B2 Alternate transmission scheme for high speed packet access (HSPA)
有权
用于高速分组接入(HSPA)的备用传输方案
- Patent Title: Alternate transmission scheme for high speed packet access (HSPA)
- Patent Title (中): 用于高速分组接入(HSPA)的备用传输方案
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Application No.: US12883986Application Date: 2010-09-16
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Publication No.: US09271203B2Publication Date: 2016-02-23
- Inventor: Tom Chin , Guangming Shi , Kuo-Chun Lee
- Applicant: Tom Chin , Guangming Shi , Kuo-Chun Lee
- Applicant Address: US CA San Diego
- Assignee: QUALCOMM Incorporated
- Current Assignee: QUALCOMM Incorporated
- Current Assignee Address: US CA San Diego
- Agent Kristine U. Ekwueme
- Main IPC: H04W4/00
- IPC: H04W4/00 ; H04W36/00 ; H04W36/08 ; H04W56/00 ; H04W72/14

Abstract:
Post-hard handover processing in a Time Division—Synchronous Code Division Multiple Access (TD-SCDMA) network may be improved to allow operation of High Speed Packet Access (HSPA) in hard handover. For example, uplink synchronization may be completed concurrent with HSPA to quickly resume HSPA operation in hard handovers. User Equipment (UE) may receive downlink data while completing uplink synchronization. In another example, a unique SYNC_UL code may be assigned to a UE for hard handover. The unique SYNC_UL code allows Node Bs of the TD-SCDMA network to know which UE is performing hard handover. When a Node B is receiving the unique SYNC_UL, the Node B may begin to allocate UL data grants. After receiving UL data from the UE, the Node B may resume High Speed Downlink Packet Access (HSDPA).
Public/Granted literature
- US20110292909A1 Alternate Transmission Scheme for High Speed Packet Access (HSPA) Public/Granted day:2011-12-01
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