Apparatus and method for fast access in a wireless communication system
First Claim
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1. A method of fast access in a wireless communication system, the method comprising:
- generating an access probe preamble which comprises an access signature that facilitates selection of bandwidth resources and modulation and coding for one or more messages, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble;
transmitting the access probe preamble on a random access channel; and
retransmitting the access probe preamble at higher power if an access grant is not received within a predetermined time period.
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Abstract
Systems and methodologies are described that facilitate a fast access in a wireless communication system, such as OFDMA. According to various aspects, the system and methods are described for generating an access probe comprising an access signature having quality of service information and transmitting the access probe on a random access channel. Also, the system and methods of receiving an access probe, the access probe comprising quality of service information, generating an access grant in response to the receive access probe, addressing the access grant using information from the access probe, and transmitting the access grant.
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Citations
24 Claims
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1. A method of fast access in a wireless communication system, the method comprising:
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generating an access probe preamble which comprises an access signature that facilitates selection of bandwidth resources and modulation and coding for one or more messages, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; transmitting the access probe preamble on a random access channel; and retransmitting the access probe preamble at higher power if an access grant is not received within a predetermined time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of fast access in a wireless communication system, the method comprising:
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receiving an access probe preamble retransmitted on a random access channel at a higher power, if an access grant is not received at a terminal within a predetermined time period, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; selecting bandwidth resources and modulation and coding for one or more messages based, at least in part, on the received access probe preamble; generating the access grant, wherein the access grant indicates the selection; scrambling the access grant using information received from the access probe preamble; and transmitting the scrambled access grant. - View Dependent Claims (10)
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11. An apparatus for fast access in a wireless communication system, the apparatus comprising:
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means for generating an access probe preamble which comprises an access signature that facilitates selection of bandwidth resources and modulation and coding for one or more messages, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; means for transmitting the access probe preamble on a random access channel; and means for retransmitting the access probe preamble at higher power if an access grant is not received within a predetermined time period. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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19. An apparatus for fast access in a wireless communication system, the apparatus comprising:
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means for receiving an access probe preamble retransmitted on a random access channel at a higher power when an access grant is not received, at a terminal, within a predetermined time period, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; means for selecting bandwidth resources and modulation and coding for one or more messages based, at least in part, on the received access probe preamble; means for generating the access grant, wherein the access grant indicates the selection; means for scrambling the access grant using information received from the access probe preamble; and means for transmitting the scrambled access grant. - View Dependent Claims (20)
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21. An apparatus for fast access in a wireless communication system, the apparatus comprising:
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a processor for; generating an access probe preamble which comprises an access signature that facilitates selection of bandwidth resources and modulation and coding for one or more messages, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble, and a transmitter for transmitting the access probe preamble on a random access channel and retransmitting the access probe preamble at higher power if an access grant is not received within a predetermined time period.
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22. An apparatus for fast access in a wireless communication system, the apparatus comprising:
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a receiver for receiving an access probe preamble retransmitted on a random access channel at a higher power when an access grant is not received, at a terminal, within a predetermined time period, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; a scheduler for selecting bandwidth resources and modulation and coding for one or more messages based, at least in part, on the received access probe preamble; a processor for generating the access grant, wherein the access grant indicates the selection, the processor further for scrambling the access grant using information from the access probe preamble; and a transmitter for transmitting the scrambled access grant.
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23. A non-transitory computer readable medium having stored thereon computer executable instructions for performing the following instructions:
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generating an access probe preamble comprising an access signature that facilitates selection of bandwidth resources and modulation and coding for one or more messages, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; transmitting the access probe preamble on a random access channel; and retransmitting the access probe preamble at higher power if an access grant is not received within a predetermined time period.
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24. A non-transitory computer readable medium having stored thereon computer executable instructions for performing the following instructions:
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receiving an access probe preamble retransmitted on a random access channel at a higher power, if an access grant is not received at a terminal within a predetermined time period, wherein the access probe preamble indicates downlink information that enables power control of an access grant message sent on the downlink in response to the access probe preamble; selecting bandwidth resources and modulation and coding for one or more messages based, at least in part, on the received access probe preamble; generating the access grant, wherein the access grant indicates the selection; scrambling the access grant using information received from the access probe preamble; and transmitting the scrambled access grant.
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Specification