Invalidity dossier
US 5729534
Dynamic allocation of radio capacity in a TDMA system
Current assignee: Nokia Technologies Oy
Added 9/21/2026, 4:02:38 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview: US5729534A
Title: Dynamic allocation of radio capacity in a TDMA system
Assignee: Original assignee Nokia Mobile Phones Ltd.; current assignee listed as Nokia Technologies Oy.
Key dates: Priority date 1995-01-09; filing date 1996-01-04; granted/publication date 1998-03-17. Status listed as "Expired - Lifetime" (anticipated expiration 2016-01-04).
Inventors: Harri Jokinen, Jari Hamalainen, Harri Posti. Application number US08/582,915.
Purpose: To better exploit radio channel capacity by dynamically dividing capacity between packet radio service and circuit switched service in a TDMA system where two-way traffic between base stations and mobile stations occurs in time slots on predetermined channels.
Plain-language scope: A base station system (BSS), comprising a base transceiver station (BTS) and base station controller (BSC), reserves a first number of time slots for packet radio service and a second number for circuit switched service. It monitors the capacity each service requires and, based on a predetermined criterion, allocates additional free time slots to one service while deallocating a corresponding number from the other. More capacity goes to whichever service needs it at a given time. Requests may come via a mobile station on a message/signaling channel, traffic channel, packet radio channel, or short message; or via base station traffic measurement. A minimum number of time slots for packet radio service can be guaranteed, adjustable by the operator or automated based on measured traffic. When a circuit switched call completes, the channel is released back to packet radio service. The BSS also informs mobile stations how capacity is divided. FIG. 1 shows time slots in a TDMA frame (GSM/DCS 1800 example, one slot reserved for GPRS); FIG. 2 is a block diagram of the TDMA mobile system.
Source: https://patents.google.com/patent/[US5729534](/patent/US5729534)/en
What the excerpt does not establish: The full claim language, the complete specification (text is excerpted/truncated), detailed description of omitted figures, and the exact prior-art analysis. It also does not establish legal status conclusions beyond the listed "assumption" status.
Generated 10/1/2026, 10:02:35 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
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