Method, apparatus and system for random access
First Claim
Patent Images
1. A method implemented by a first apparatus, comprising:
- receiving a reference representing a set of sequences from a second apparatus;
incorporating a signature sequence into a signal, wherein the signature sequence is one of the set of sequences with a zero correlation zone, wherein the set of sequences is obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
r/N), N is an odd integer, r is relatively prime to N; and
transmitting the signal with the signature sequence to the second apparatus, wherein r is associated with the reference representing the set of sequences.
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Abstract
A method can be used for facilitating a random access procedure between a first transceiver and a second transceiver within a cell. The first transceiver selects a signature sequence from a set of signature sequences, incorporates the signature sequence into a signal, and transmits the signal to the second transceiver. The set of signature sequences being obtained from a sequence with zero correlation zone.
36 Citations
20 Claims
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1. A method implemented by a first apparatus, comprising:
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receiving a reference representing a set of sequences from a second apparatus; incorporating a signature sequence into a signal, wherein the signature sequence is one of the set of sequences with a zero correlation zone, wherein the set of sequences is obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
r/N), N is an odd integer, r is relatively prime to N; andtransmitting the signal with the signature sequence to the second apparatus, wherein r is associated with the reference representing the set of sequences. - View Dependent Claims (2, 3, 4)
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5. An apparatus operable in a cell of a wireless communications system, the apparatus comprising:
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a first circuitry, configured to incorporate a signature sequence into a signal, wherein the signature sequence is one of a set of sequences with a zero correlation zone, wherein the set of sequences being obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
/N), Ni s an odd integer, r is relatively prime to N; anda second circuitry, configured to transmit the signal with the signature sequence to a transceiver, wherein r is associated with a reference representing the set of sequences, and the reference is received from the transceiver. - View Dependent Claims (6, 7, 8)
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9. An apparatus, comprising:
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a first circuitry, configured to receive a signal from a transceiver over a random access channel, wherein a signature sequence of a first set of sequences with a zero correlation zone is used in a preamble portion of the signal, wherein the first set of sequences is obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
r/N), N is an odd integer, r is relatively prime to N; anda second circuitry, configured to perform a correlation of the signal with a second set of sequences, the correlation performed for detection of the signature sequence, wherein r is associated with a reference representing the first set of sequences, and the reference is indicated by the apparatus to the transceiver. - View Dependent Claims (10)
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11. A method implemented by an apparatus, comprising:
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receiving a signal from a transceiver over a random access channel, wherein a signature sequence of a first set of sequences with a zero correlation zone is used in a preamble portion of the signal, wherein the first set of sequences is obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
r/N), N is an odd integer, r is relatively prime to N; andperforming a correlation of the signal with a second set of sequences, the correlation performed for detection of the signature sequence, wherein r is associated with a reference representing the first set of sequences, and the reference is indicated by the apparatus to the transceiver. - View Dependent Claims (12)
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13. A method implemented in a communications system comprising a first apparatus and a second apparatus, and the method comprises:
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receiving, by the first apparatus, a reference representing a set of sequences from the second apparatus, incorporating a signature sequence into a signal, and transmitting the signal with the signature sequence to the second apparatus, wherein r is associated with the reference representing the set of sequences, wherein the signature sequence is one of the set of sequences with a zero correlation zone, wherein the set of sequences is obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
r/N), N is an odd integer, r is relatively prime to N; andreceiving, by the second apparatus, the signal. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A non-transitory computer readable medium (CRM), comprising processor-executable instructions, wherein the processor-executable instructions, when executed by one or more processors, prompt a device to:
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transmit a reference representing a first set of sequences to a transceiver; receive a signal from the transceiver over a random access channel, wherein a signature sequence of a first set of sequences with a zero correlation zone is used in a preamble portion of the signal, wherein the first set of sequences is obtained from a first sequence as;
a(k)=WNk(k+1)/2,k=0,1, . . . ,N−
1,where WN=exp(−
j2π
r/N), N is an odd integer, r is relatively prime to N; andperform a correlation of the signal with a second set of sequences, wherein r is associated with the reference representing the first set of sequences. - View Dependent Claims (20)
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Specification