发明授权
- 专利标题： Preamble group selection in random access of wireless networks
- 专利标题（中）： 无线网络随机接入中的前导组选择
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申请号： US12563281申请日： 2009-09-21
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公开(公告)号： US08130667B2公开(公告)日： 2012-03-06
- 发明人: Pierre Bertrand , Shantanu Kangude , Zukang Shen
- 申请人： Pierre Bertrand , Shantanu Kangude , Zukang Shen
- 申请人地址： US TX Dallas
- 专利权人： Texas Instruments Incorporated
- 当前专利权人： Texas Instruments Incorporated
- 当前专利权人地址： US TX Dallas
- 代理商 Robert D. Marshall, Jr.; W. James Brady; Frederick J. Telecky, Jr.
- 主分类号： H04L12/28
- IPC分类号： H04L12/28 ; H04W4/00
摘要：
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.
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