RACH-ramp-up acknowledgement
First Claim
1. A wireless mobile station, comprising:
- a transmitter;
a receiver;
a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to;
(a) generate a first coded signal which does not include any message data;
(b) transmit the first coded signal to a base station, at a first separate and distinct power level;
(c) transmit a second coded signal to the base station, without any message data, at a second separate and distinct power level higher than the first separate and distinct power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first separate and distinct power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations;
(d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; and
(e) transmit message data after ceasing coded signal transmission, and wherein the wireless mobile station further comprises;
an acknowledgment detector, coupled to the receiver, for detecting the L1 acknowledgment;
an encoder for encoding said message data;
a generator for generating said first coded signal and second coded signal; and
a formatter, coupled to the encoder, for formatting the encoded message data.
3 Assignments
0 Petitions
Accused Products
Abstract
A disclosed code-division-multiple-access (CDMA) system has a base station (BS) and remote stations (RSs). A BS-spread-spectrum transmitter broadcasts a common-synchronization channel having a chip-sequence signal common to the remote stations served by the BS, and a frame-timing signal. A RS-spread-spectrum receiver receives the broadcast common-synchronization channel, and determines frame timing from the frame-timing signal. A first RS-spread-spectrum transmitter transmits an access-burst signal, which has a plurality of segments. Each access burst signal segment has a plurality of power levels. A BS-spread-spectrum receiver receives the access-burst signal at a detected-power level. In response to receiving the access-burst signal, a BS-spread-spectrum transmitter transmits an acknowledgment signal to the RS-spread-spectrum receiver. The RS-spread-spectrum receiver receives the acknowledgment signal, and in, the RS-spread-spectrum transmitter transmits a spread-spectrum signal having data to the BS-spread-spectrum receiver.
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Citations
97 Claims
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1. A wireless mobile station, comprising:
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a transmitter; a receiver; a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, at a first separate and distinct power level; (c) transmit a second coded signal to the base station, without any message data, at a second separate and distinct power level higher than the first separate and distinct power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first separate and distinct power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; and (e) transmit message data after ceasing coded signal transmission, and wherein the wireless mobile station further comprises; an acknowledgment detector, coupled to the receiver, for detecting the L1 acknowledgment; an encoder for encoding said message data; a generator for generating said first coded signal and second coded signal; and a formatter, coupled to the encoder, for formatting the encoded message data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless mobile station, comprising:
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a transmitter; a receiver; a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, without any message data, at a first power level; (c) transmit a second coded signal to the base station, without any message data, at a second power level a step higher than the first power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first power level, provided that no L1 acknowledgment corresponding to the coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; and (e) transmit message data after ceasing coded signal transmission, and wherein the wireless mobile station further comprises; an acknowledgment detector, coupled to the receiver, for detecting the L1 acknowledgment; an encoder for encoding said message data; a preamble generator for generating said first coded signal and second coded signal; and a formatter, coupled to the encoder, for formatting the encoded message data. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A wireless mobile station, comprising:
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a transmitter; a receiver; a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, without any message data, at a first separate and distinct power level; (c) transmit a second coded signal to the base station, without any message data, at a second separate and distinct power level higher than the first separate and distinct power level, upon expiration of a predetermined interval following the end of the transmission of the first coded signal at the first separate and distinct power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a previously transmitted coded signal; and (e) transmit data to the base station only after ceasing coded signal transmission, and wherein the wireless mobile station further comprises; an acknowledgment detector, coupled to the receiver, for detecting the L1 acknowledgment; an encoder for encoding said message data; a generator for generating said first coded signal and second coded signal; and a formatter, coupled to the encoder, for formatting the encoded message data. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A wireless mobile station, comprising:
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a controller coupled to a receiver and to a transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, without any message data, at a first power level; (c) transmit a second coded signal to the base station, without any message data, at a second power level a separate and distinct step higher than the first power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; and (e) transmit message data after ceasing coded signal transmission, and wherein the wireless mobile station further comprises; an acknowledgment detector, coupled to the receiver, for detecting the L1 acknowledgment; an encoder for encoding said message data; a generator for generating said first coded signal and second coded signal; and a formatter, coupled to the encoder, for formatting the encoded message data. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A wireless mobile station, comprising:
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a controller coupled to a receiver and to a transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) transmit the first coded signal to a base station, without any message data, at a first power level, the first coded signal including one or more codes that distinguish the first coded signal from another coded signal, the first coded signal not including message data; (b) transmit a second coded signal to the base station, without any message data, at a second power level a step higher than the first power level, upon expiration of a predetermined interval following the end of the transmission of the first coded message at the first power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, the second coded signal including one or more codes that distinguish the second coded signal from another coded signal, the second coded signal not including message data; (c) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a previously transmitted coded signal; and (d) transmit message data to the base station only after ceasing coded signal transmission, and wherein the wireless mobile station further comprises; an acknowledgment detector, coupled to the receiver, for detecting the L1 acknowledgment; an encoder for encoding said message data; a generator for generating said first coded signal and second coded signal; and a formatter, coupled to the encoder, for formatting the encoded message data. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. A wireless mobile station, comprising:
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a transmitter; a receiver; a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, at a first separate and distinct power level; (c) transmit a second coded signal to the base station, without any message data, at a second separate and distinct power level higher than the first separate and distinct power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first separate and distinct power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; (e) cease coded signal transmission to the base station if no L1 acknowledgment corresponding to a transmitted coded signal has been received after a maximum number of repetitions; and (f) transmit message data after ceasing coded signal transmission if an L1 acknowledgement has been received by the mobile station. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59)
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60. A wireless mobile station, comprising:
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a transmitter; a receiver; a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, without any message data, at a first power level; (c) transmit a second coded signal to the base station, without any message data, at a second power level a step higher than the first power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first power level, provided that no L1 acknowledgment corresponding to the coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; (e) cease coded signal transmission to the base station if no L1 acknowledgment corresponding to a transmitted coded signal has been received after a maximum number of repetitions; and (f) transmit message data after ceasing coded signal transmission if an L1 acknowledgement has been received by the mobile station. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68)
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69. A wireless mobile station, comprising:
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a transmitter; a receiver; a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, without any message data, at a first separate and distinct power level; (c) transmit a second coded signal to the base station, without any message data, at a second separate and distinct power level higher than the first separate and distinct power level, upon expiration of a predetermined interval following the end of the transmission of the first coded signal at the first separate and distinct power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a previously transmitted coded signal; (e) cease coded signal transmission to the base station if no L1 acknowledgment corresponding to a transmitted coded signal has been received after a maximum number of repetitions; and (f) transmit data to the base station after ceasing coded signal transmission if an L1 acknowledgement has been received by the mobile station. - View Dependent Claims (70, 71, 72, 73, 74, 75, 76, 77)
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78. A wireless mobile station, comprising:
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a controller coupled to a receiver and to a transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) generate a first coded signal which does not include any message data; (b) transmit the first coded signal to a base station, without any message data, at a first power level; (c) transmit a second coded signal to the base station, without any message data, at a second power level a separate and distinct step higher than the first power level, upon expiration of a predetermined interval following the transmission of the first coded signal at the first power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, each of the first and second coded signals comprising one or more codes that are used to distinguish the wireless mobile station from one or more other mobile stations; (d) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a transmitted coded signal; (e) cease coded signal transmission to the base station if no L1 acknowledgment corresponding to a transmitted coded signal has been received after a maximum number of repetitions; and (f) transmit message data after ceasing coded signal transmission if an L1 acknowledgement has been received by the mobile station. - View Dependent Claims (79, 80, 81, 82, 83, 84, 85, 86)
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87. A wireless mobile station, comprising:
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a controller coupled to a receiver and to a transmitter, such that in operation the controller causes the mobile station to perform functions, including functions to; (a) transmit the first coded signal to a base station, without any message data, at a first power level, the first coded signal including one or more codes that distinguish the first coded signal from another coded signal, the first coded signal not including message data; (b) transmit a second coded signal to the base station, without any message data, at a second power level a step higher than the first power level, upon expiration of a predetermined interval following the end of the transmission of the first coded message at the first power level, provided that no L1 acknowledgment corresponding to the first coded signal is received at the mobile station, the second coded signal including one or more codes that distinguish the second coded signal from another coded signal, the second coded signal not including message data; (c) cease coded signal transmission to the base station upon receiving a L1 acknowledgment corresponding to a previously transmitted coded signal; (d) cease coded signal transmission to the base station if no L1 acknowledgment corresponding to a transmitted coded signal has been received after a maximum number of repetitions; and (e) transmit message data to the base station after ceasing coded signal transmission if an L1 acknowledgement has been received by the mobile station. - View Dependent Claims (88, 89, 90, 91, 92, 93, 94, 95)
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96. A wireless remote station, comprising:
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a transmitter; a receiver; and a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the remote station performs the following steps; transmit a plurality of coded signals at sequentially increasing separate and distinct power levels to the base station, each of the plurality of coded signals not including any message data; receive an acknowledgement signal from the base station following transmission of one or more of the coded signals; transmit a collision detection signal to the base station after receipt of the acknowledgement signal; receive a base station collision detection signal from the base station, the base station collision detection signal corresponding to the transmitted collision detection signal; transmit any of data and control information to the base station, after receipt of the base station collision detection signal; and receive any of data and control information from the base station.
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97. A wireless remote station, comprising:
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a transmitter; a receiver; and a controller coupled to the receiver for responding to signals received via the receiver and coupled for controlling the transmitter, such that in operation the remote station performs the following steps; transmitting a plurality of coded signals at sequentially increasing separate and distinct power levels to the base station, each of the plurality of coded signals not including any message data; receiving an acknowledgement signal from the base station following transmission of one or more of the coded signals; transmitting a collision detection signal to the base station following receipt of the acknowledgement signal; and ceasing signal transmission to the base station after a period of time if no base station collision detection signal corresponding to the transmitted collision detection signal has been received from the base station.
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Specification