US6519233B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Subscriber unit burst mode reservation in a code division multiple access wireless communication system
Assignee: Ericsson AB
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Filing: 1999-06-11
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Granted: 2003-02-11
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Expires: 2019-06-11
Abstract
Abstract A CDMA communication system supports designated mode data bursts on a reverse link contention based channel from a subscriber unit to a base station. The reverse link contention based channel also supports contention-based transmissions from the subscriber unit to the base station. When transmissions are scheduled and serviced in the designated mode data burst, collisions are avoided. Further, because setting up the designated mode data bursts on the reverse link contention based channel require little overhead as compared to the setup of a traffic channel the CDMA system is operated at a greater efficiency. The reverse link contention based channel may be a Reverse Common Control Channel, a Reverse Access Channel or another contention-based channel. Designated mode data bursts on the reverse link contention based channel may consume a single slot or multiple slots. The number of slots consumed in the designated mode data bursts depends upon the volume of data the subscriber unit has to transmit to the base station. The subscriber unit may state the amount of data it desires to transmit in the designated mode data burst. Based upon this stated amount, the base station may reserve multiple slots for the designated mode data burst. Then, the subscriber unit will transmit data during the slots.
Inventors
- 👤 Alberto Gutierrez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:17
CPC Classifications
H; H04; H04W; H04W52/00; H04W52/04; H04W52/06; H04W52/14; H04W52/143; H04W52/146; H04W52/54; H04W52/56; H04W52/60
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
157 words
A base station that supports communications with a plurality of subscriber units in a CDMA wireless communication system, the base station comprising: an antenna; a radio frequency interface coupled to the antenna; a spreader/despreader coupled to the radio frequency interface; a coder/decoder coupled to the spreader/despreader; processing circuitry coupled to the coder/decoder; memory coupled to the processing circuitry; a base station controller interface coupled to the processing circuitry; the base station supporting a reverse link contention based channel; in a first operation, the base station receiving a reservation request from a subscriber unit for a designated mode data burst; in the first operation, the base station scheduling the designated mode data burst based upon the reservation request; in a second operation, the base station scheduling the designated mode data burst from the subscriber unit without receiving a corresponding reservation request; and the base station receiving the designated mode data burst on the reverse link contention based channel.
Claim 2
Dependent Claim
157 words
A base station that supports communications with a plurality of subscriber units in a CDMA wireless communication system, the base station comprising: an antenna; a radio frequency interface coupled to the antenna; a spreader/despreader coupled to the radio frequency interface; a coder/decoder coupled to the spreader/despreader; processing circuitry coupled to the coder/decoder; memory coupled to the processing circuitry; a base station controller interface coupled to the processing circuitry; the base station supporting a reverse link contention based channel; in a first operation, the base station receiving a reservation request from a subscriber unit for a designated mode data burst; in the first operation, the base station scheduling the designated mode data burst based upon the reservation request; in a second operation, the base station scheduling the designated mode data burst from the subscriber unit without receiving a corresponding reservation request; and the base station receiving the designated mode data burst on the reverse link contention based channel.
Claim 3
Dependent Claim
27 words
The base station of claim 1 , wherein the base station further receives contention based transmissions from the subscriber unit on the reverse link contention based channel.
Claim 4
Dependent Claim
19 words
The base station of claim 1 , wherein the reverse link contention based channel comprises a reverse access channel.
Claim 5
Dependent Claim
20 words
The base station of claim 1 , wherein the reverse link contention based channel comprises a reverse common control channel.
Claim 6
Dependent Claim
21 words
The base station of claim 1 , wherein the base station further supports traffic channel data communications with the subscriber unit.
Claim 7
Dependent Claim
44 words
The base station of claim 5 , wherein: the base station and subscriber unit initiate a data session using a traffic channel; and the base station services subsequent transmissions from the subscriber unit in the data session on the reverse link contention based channel.
Claim 8
Dependent Claim
21 words
The base station of claim 1 , wherein operation of the base station is substantially compliant with CDMA 2000 standardized operations.
Claim 9
Dependent Claim
136 words
A subscriber unit for operating within a CDMA wireless communication system that supports a plurality of subscriber units and that includes a base station, the subscriber unit comprising; an antenna; a radio frequency interface coupled to the antenna; a spreader/despreader coupled to the radio frequency interface; a coder/decoder coupled to the spreader/despreader; processing circuitry coupled to the coder/decoder; memory coupled to the processing circuitry; a user interface coupled to the processing circuitry; in a first operation, the subscriber unit communicating with the base station to reserve a designated mode data burst on a reverse link contention based channel; in a second operation, the base station initiating the designated mode data burst from the subscriber unit; and the subscriber unit transmitting the designated mode data burst to the base station on the reverse link contention based channel.
Claim 10
Dependent Claim
136 words
A subscriber unit for operating within a CDMA wireless communication system that supports a plurality of subscriber units and that includes a base station, the subscriber unit comprising; an antenna; a radio frequency interface coupled to the antenna; a spreader/despreader coupled to the radio frequency interface; a coder/decoder coupled to the spreader/despreader; processing circuitry coupled to the coder/decoder; memory coupled to the processing circuitry; a user interface coupled to the processing circuitry; in a first operation, the subscriber unit communicating with the base station to reserve a designated mode data burst on a reverse link contention based channel; in a second operation, the base station initiating the designated mode data burst from the subscriber unit; and the subscriber unit transmitting the designated mode data burst to the base station on the reverse link contention based channel.
Claim 11
Dependent Claim
27 words
The subscriber unit of claim 8 , wherein the subscriber unit further transmits contention based transmissions to the base station on the reverse link contention based channel.
Claim 12
Dependent Claim
19 words
The subscriber unit of claim 8 , wherein the reverse link contention based channel comprises a reverse access channel.
Claim 13
Dependent Claim
20 words
The subscriber unit of claim 8 , wherein the reverse link contention based channel comprises a reverse common control channel.
Claim 14
Dependent Claim
21 words
The subscriber unit of claim 8 , wherein the subscriber unit further supports traffic channel data communications with the base station.
Claim 15
Dependent Claim
44 words
The subscriber unit of claim 12 , wherein: the base station and subscriber unit initiate a data session using a traffic channel; and the subscriber unit transmits subsequent transmissions to the base station in the data session on the reverse link contention based channel.
Claim 16
Dependent Claim
21 words
The subscriber unit of claim 8 , wherein operation of the subscriber unit is substantially compliant with CDMA 2000 standardized operations.
Claim 17
Independent Claim
88 words
A method for operating a base station within a CDMA wireless communication system that supports a plurality of subscriber units, the method comprising: supporting a reverse link contention based channel; in a first operation, receiving a reservation request from a subscriber unit for a designated mode data burst; in a second operation, initiating the designated mode data burst from the subscriber unit without receiving a corresponding reservation request; scheduling the designated mode data burst; and receiving the designated mode data burst on the reverse link contention based channel.
Claim 18
Independent Claim
88 words
A method for operating a base station within a CDMA wireless communication system that supports a plurality of subscriber units, the method comprising: supporting a reverse link contention based channel; in a first operation, receiving a reservation request from a subscriber unit for a designated mode data burst; in a second operation, initiating the designated mode data burst from the subscriber unit without receiving a corresponding reservation request; scheduling the designated mode data burst; and receiving the designated mode data burst on the reverse link contention based channel.
Claim 19
Dependent Claim
25 words
The method of claim 15 , wherein the base station further receives contention-based transmissions from the subscriber unit on the reverse link contention based channel.
Claim 20
Dependent Claim
18 words
The method of claim 15 , wherein the reverse link contention based channel comprises a reverse access channel.
Claim 21
Dependent Claim
28 words
The method of claim 15 , further comprising: initiating a data session using a traffic channel; and continuing the data session on the reverse link contention based channel.
Claim 22
Dependent Claim
20 words
The base station of claim 15 , further comprising operating the base station is compliance with CDMA 2000 standardized operations.
Claim 23
Independent Claim
121 words
A method for operating a subscriber unit within a CDMA wireless communication system that includes a base station and that supports a plurality of subscriber units, the method comprising: in a first operation, sending a designated mode data burst reservation request to the base station to reserve a designated mode data burst on a reverse link contention based channel; in the first operation receiving a designated mode assignment from the base station based upon the reservation request sent to the base station; in a second operation, receiving a designated mode assignment that does not correspond to a designated mode data burst reservation request; and transmitting a designated mode data burst to the base station on the reverse link contention based channel.
Claim 24
Independent Claim
121 words
A method for operating a subscriber unit within a CDMA wireless communication system that includes a base station and that supports a plurality of subscriber units, the method comprising: in a first operation, sending a designated mode data burst reservation request to the base station to reserve a designated mode data burst on a reverse link contention based channel; in the first operation receiving a designated mode assignment from the base station based upon the reservation request sent to the base station; in a second operation, receiving a designated mode assignment that does not correspond to a designated mode data burst reservation request; and transmitting a designated mode data burst to the base station on the reverse link contention based channel.
Claim 25
Dependent Claim
22 words
The method of claim 20 , further comprising transmitting contention-based transmissions to the base station on the reverse link contention based channel.
Claim 26
Dependent Claim
18 words
The method of claim 20 , wherein the reverse link contention based channel comprises a reverse access channel.
Claim 27
Dependent Claim
19 words
The method of claim 20 , wherein the reverse link contention based channel comprises a reverse common control channel.
Claim 28
Dependent Claim
28 words
The method of claim 20 , further comprising: initiating a data session using a traffic channel; and continuing the data session on the reverse link contention based channel.
Claim 29
Dependent Claim
19 words
The method of claim 20 , further comprising operating the subscriber unit in compliance with CDMA 2000 standardized operations.
References Cited (Backward Citations)
US5729542A
Cited
WO1997011566A2
Cited
WO1998037669A1
Cited
WO1999004592A1
Cited
WO1999013600A1
Cited
US6236646B1
Cited
WO1999021375A2
Cited
EP0993211A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2006-02-10 | 2006-08-12 | 2007-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2010-02-10 | 2010-08-12 | 2011-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2014-02-10 | 2014-08-12 | 2015-02-11 | $7700.00 | Window Closed / Lapsed |