Random access method and signaling method for the same
First Claim
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, andwherein the system information is the same for all of the UEs within the cell regardless of the types of the UEs.
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Abstract
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.
23 Citations
9 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5)
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6. A Node-B for performing a random access procedure with a specific user equipment (UE) within a cell in which a plurality of UEs are located together, the Node-B comprising:
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a transmitter configured to transmit system information for at least one of a basic sequence index and a length of a zero correlation zone (ZCZ) to the UE; and a receiver configured to receive a preamble sequence from the 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 applicable lengths determined based on the length of the ZCZ, wherein a number of the plurality of applicable 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. - View Dependent Claims (7, 8, 9)
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Specification