Invention Grant
- Patent Title: Preamble group selection in random access of wireless networks
- Patent Title (中): 无线网络随机接入中的前导组选择
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Application No.: US12563281Application Date: 2009-09-21
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Publication No.: US08130667B2Publication Date: 2012-03-06
- Inventor: Pierre Bertrand , Shantanu Kangude , Zukang Shen
- Applicant: Pierre Bertrand , Shantanu Kangude , Zukang Shen
- Applicant Address: US TX Dallas
- Assignee: Texas Instruments Incorporated
- Current Assignee: Texas Instruments Incorporated
- Current Assignee Address: US TX Dallas
- Agent Robert D. Marshall, Jr.; W. James Brady; Frederick J. Telecky, Jr.
- Main IPC: H04L12/28
- IPC: H04L12/28 ; H04W4/00
Abstract:
A transport block size (TBS) of a first uplink message (RACH Msg3) transmitted on a Physical Uplink Shared Channel (PUSCH) during a random access procedure in a User Equipment (UE) accessing a radio access network may be determined by receiving a pathloss threshold parameter. A downlink pathloss value indicative of radio link conditions between the UE and a base station (eNB) serving the UE is then determined. A smaller value of TBS is selected from a set of TBS values if the determined pathloss value is greater than an operating power level of the UE minus the pathloss threshold parameter. A larger value of TBS is selected if the pathloss value is less than the operating power level of the UE minus the pathloss threshold parameter and the TBS required to transmit the RACH Msg3 exceeds the smaller TBS value.
Public/Granted literature
- US20100074130A1 Preamble Group Selection in Random Access of Wireless Networks Public/Granted day:2010-03-25
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