发明名称 |
RANDOM ACCESS METHOD AND SIGNALLING METHOD FOR THE SAME |
摘要 |
A method for performing a random access procedure by a Node-B with a specific user equipment (UE) within a cell in which a plurality of UEs are located together. System information is transmitted for at least one of a basic sequence index and a length of a zero correlation zone (ZCZ) to the specific UE. A preamble sequence is received from the specific UE over a random access channel. The preamble sequence is generated from Constant Amplitude Zero Auto-Correlation (CAZAC) sequences distinguishable by at least one of the basic sequence index and a length of a Cyclic Shift (CS) applied to the preamble sequence. The length of the CS applied to the preamble sequence is given by one among a plurality of application lengths determined based on the length of the ZCZ. A number of the plurality of lengths are differently given based on a type of the specific UE. |
申请公布号 |
US2015305067(A1) |
申请公布日期 |
2015.10.22 |
申请号 |
US201514753999 |
申请日期 |
2015.06.29 |
申请人 |
LG Electronics Inc. |
发明人 |
NOH Min Seok;HAN Seung Hee;KWON Yeong Hyeon;PARK Hyun Hwa;LEE Hyun Woo;KIM Dong Cheol |
分类号 |
H04W74/08;H04J13/00 |
主分类号 |
H04W74/08 |
代理机构 |
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代理人 |
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主权项 |
1. A method for performing a random access procedure by a Node-B with a specific user equipment (UE) within a cell in which a plurality of UEs are located together, the method comprising:
transmitting system information for at least one of a basic sequence index and a length of a zero correlation zone (ZCZ) to the specific UE; and receiving a preamble sequence from the specific UE over a random access channel, wherein the preamble sequence is generated from Constant Amplitude Zero Auto-Correlation (CAZAC) sequences distinguishable by at least one of the basic sequence index and a length of a Cyclic Shift (CS) applied to the preamble sequence, wherein the length of the CS applied to the preamble sequence is given by one among a plurality of application lengths determined based on the length of the ZCZ, wherein a number of the plurality of lengths are differently given based on a type of the specific UE, and wherein the system information is the same for all of the UEs within the cell regardless of the types of the UEs. |
地址 |
Seoul KR |