Patent US6172971B1 successfully refreshed from Google Patents.
US6172971B1
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Method for forming frame structure for use in time division multiple access communication system
Assignee: Samsung Electronics Co Ltd
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Filing: 1997-09-29
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Granted: 2001-01-09
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Expires: 2017-09-29
Abstract
Abstract A frame structure suitable for effectively transmitting voice and data in a TDMA communication system. The TDMA communication system using the frame structure separates voice/data competition procedures, and disposes a request subslot at a leading end of every slot so as to reduce the access delay of a real-time traffic. Thus, it is possible to easily reserve the traffics, by maintaining the constant number of the request subslots. Further, the slots are first allocated to the real-time traffic, and the remaining idle slots are allocated to the non real-time traffic. Therefore, it is possible to give a priority order to a voice user and separate the voice/data contentions.
Inventors
- 👤 Byung-Chul Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:24
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; H04B7/2643; H04J; H04J3/00; H04J3/16; H04J3/1694
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
140 words
A method for forming a frame structure for use in a TDMA (Time Division Multiple Access) communication system, comprising the steps of: preparing a plurality of slots on the frame; disposing a plurality of acknowledge subslots for a down-link at a leading end of each of said slots; determining whether generated real time traffic is voice or data; evaluating a permission probability of the real traffic at a next request subslot; determining whether successful reservation of a communication channel has been established; reserving an idle slot when the real time traffic is voice and a successful reservation has been made; allocating remaining idle slots to non-real-time traffic; transmitting packets when the idle slot has been reserved; determining whether the voice data has been completed; and returning the reserved idle slot to its idle status when the voice data is complete.
Claim 2
Independent Claim
140 words
A method for forming a frame structure for use in a TDMA (Time Division Multiple Access) communication system, comprising the steps of: preparing a plurality of slots on the frame; disposing a plurality of acknowledge subslots for a down-link at a leading end of each of said slots; determining whether generated real time traffic is voice or data; evaluating a permission probability of the real traffic at a next request subslot; determining whether successful reservation of a communication channel has been established; reserving an idle slot when the real time traffic is voice and a successful reservation has been made; allocating remaining idle slots to non-real-time traffic; transmitting packets when the idle slot has been reserved; determining whether the voice data has been completed; and returning the reserved idle slot to its idle status when the voice data is complete.
Claim 3
Dependent Claim
90 words
The method according to claim 1 , further comprising the steps of: buffering the successful reservation of the communication channel to a global data queue when the real time traffic is data; determining the presence of an idle slot; transmitting a real time data packet when an idle slot is present; determining whether the transmitted data packet was the last packet; transmitting a subsequent data packet when the transmitted data packet is not the last data packet; terminating the data transmission when the transmitted data packet is the last packet.
Claim 4
Dependent Claim
22 words
The method according to claim 1 , further comprising the step of: delaying the frame on the down-link by a timing offset.
Claim 5
Dependent Claim
24 words
The method according to claim 3 , wherein said timing offset is equal to half the duration of one of said plurality of slots.
Claim 6
Independent Claim
192 words
A method for forming a frame structure for use in a time division multiple access (TDMA) communication system, comprising the steps of: preparing a plurality of slots on the frame: disposing a plurality of request subslots on an up-link at a leading end of each of said slots; determining whether generated real-time traffic is voice or data; evaluating a permission probability of a next request subslot, said permission probability based on whether the real-time traffic is voice or data; determining whether successful reservation of a communication channel has been established; waiting for a reserved idle slot when the real-time traffic is voice and a successful reservation has been made; buffering to a global data queue when the real-time traffic is data and a successful reservation has been made; transmitting a voice packet at the reserved idle slot in each frame, until the voice real-time traffic is completed; transmitting a data packet from the global data queue when an idle slot is reached, until the data real-time traffic is completed; allocating remaining idle slots to non-real-time traffic; and returning the reserved idle slot to its idle status when the voice data is completed.
Claim 7
Independent Claim
192 words
A method for forming a frame structure for use in a time division multiple access (TDMA) communication system, comprising the steps of: preparing a plurality of slots on the frame: disposing a plurality of request subslots on an up-link at a leading end of each of said slots; determining whether generated real-time traffic is voice or data; evaluating a permission probability of a next request subslot, said permission probability based on whether the real-time traffic is voice or data; determining whether successful reservation of a communication channel has been established; waiting for a reserved idle slot when the real-time traffic is voice and a successful reservation has been made; buffering to a global data queue when the real-time traffic is data and a successful reservation has been made; transmitting a voice packet at the reserved idle slot in each frame, until the voice real-time traffic is completed; transmitting a data packet from the global data queue when an idle slot is reached, until the data real-time traffic is completed; allocating remaining idle slots to non-real-time traffic; and returning the reserved idle slot to its idle status when the voice data is completed.
Claim 8
Dependent Claim
22 words
The method according to claim 5 , further comprising the step of: delaying the frame on the down-link by a timing offset.
Claim 9
Dependent Claim
24 words
The method according to claim 6 , wherein said timing offset is equal to half the duration of one of said plurality of slots.
Claim 10
Independent Claim
210 words
A method for forming a frame structure for use in a time division multiple access (TDMA) communication system, comprising the steps of: preparing a plurality of slots on the frame: disposing a plurality of request subslots on an up-link at a leading end of each of said slots; disposing a plurality of request subslots on a down-link at a leading end of each of said slots; determining whether generated real-time traffic is voice or data; evaluating a permission probability of a next request subslot, said permission probability based on whether the real-time traffic is voice or data; determining whether successful reservation of a communication channel has been established; waiting for a reserved idle slot when the real-time traffic is voice and a successful reservation has been made; buffering to a global data queue when the real-time traffic is data and a successful reservation has been made; transmitting a voice packet at the reserved idle slot in each frame, until the voice real-time traffic is completed; transmitting a data packet from the global data queue when an idle slot is reached, until the data real-time traffic is completed; allocating remaining idle slots to non-real-time traffic; and returning the reserved idle slot to its idle status when the voice data is completed.
Claim 11
Independent Claim
210 words
A method for forming a frame structure for use in a time division multiple access (TDMA) communication system, comprising the steps of: preparing a plurality of slots on the frame: disposing a plurality of request subslots on an up-link at a leading end of each of said slots; disposing a plurality of request subslots on a down-link at a leading end of each of said slots; determining whether generated real-time traffic is voice or data; evaluating a permission probability of a next request subslot, said permission probability based on whether the real-time traffic is voice or data; determining whether successful reservation of a communication channel has been established; waiting for a reserved idle slot when the real-time traffic is voice and a successful reservation has been made; buffering to a global data queue when the real-time traffic is data and a successful reservation has been made; transmitting a voice packet at the reserved idle slot in each frame, until the voice real-time traffic is completed; transmitting a data packet from the global data queue when an idle slot is reached, until the data real-time traffic is completed; allocating remaining idle slots to non-real-time traffic; and returning the reserved idle slot to its idle status when the voice data is completed.
Claim 12
Dependent Claim
22 words
The method according to claim 8 , further comprising the step of: delaying the frame on the down-link by a timing offset.
Claim 13
Dependent Claim
24 words
The method according to claim 9 , wherein said timing offset is equal to half the duration of one of said plurality of slots.
References Cited (Backward Citations)
US5377192A
Cited
US5299198A
Cited
US5521925A
Cited
US5732073A
Cited
US5729534A
Cited
US5881061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-01-09 | 2004-07-10 | 2005-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-09 | 2008-07-10 | 2009-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-09 | 2012-07-10 | 2013-01-09 | $7700.00 | Window Closed / Lapsed |