US 8259688

6] US8259688B2 - Pre-allocated random access identifiers - Google Patents
https://patents.google.com/patent/US8259688B2/enUS patent 8259688, titled "Pre-allocated random access identifiers," was filed on September 1, 2006, and issued on September 4, 2012. The current assignee is Quarterhill Inc., while the original assignee was WiLAN Inc. The inventors are Yair Bourlas, Adam E. Newham, Lei Wang, and Srikanth Gummadi.

Abstract:
The patent describes systems and methods for pre-allocating identifiers, such as CDMA codes, to wireless devices for use in requesting resources over a random access channel. This approach aims to reduce the probability of random access channel collisions and conserve resources by allowing base stations to pre-allocate one or more unique codes to selected wireless devices. When a wireless device with a pre-allocated code transmits it over the random access channel, the request uniquely identifies the requester, facilitating faster and more efficient resource allocation.

Plain-language overview of independent claims:

• Independent Claim 1 (Method of processing random access identifiers): This claim describes a method performed by a base station. It involves determining a set of random access codes and designating a subset of these as "allocatable codes." The method then includes selecting a first code from these allocatable codes and assigning it to a specific subscriber station as a unique identifier for use in a random access channel.

• Independent Claim 9 (Method of processing random access identifiers from a subscriber station perspective): This claim outlines a method performed by a subscriber station. It involves receiving at least one random access code allocation from a base station. When a triggering event for accessing the random access channel occurs, the subscriber station determines if any of its allocated codes correspond to the request type of that event. If a match is found, the subscriber station selects that specific pre-allocated code and transmits it to the base station over the random access channel.

• Independent Claim 10 (Apparatus for processing random access identifiers - Base Station): This claim describes a base station apparatus. It includes a receiver to get information from a subscriber station, a configuration module coupled to the receiver that selects and allocates at least one allocatable code from a set of random access codes to the subscriber station, and a transmitter to send a message to the subscriber station pre-allocating that code.

• Independent Claim 15 (Apparatus for processing random access identifiers - Subscriber Station): This claim describes a subscriber station apparatus. It features a receiver for receiving at least one allocated random access code from a base station, a storage device to save this assignment, a message generator to create a random access channel message using one of the allocated codes, and a transmitter to send this message to the base station over the random access channel.

• Independent Claim 16 (Method of processing random access identifiers received at a base station): This claim details a method performed by a base station upon receiving a code over a random access channel. The base station determines if the received code is a pre-allocated code. If it is, the base station identifies the subscriber station to which the code was allocated and ascertains the request made by that subscriber station based on the code's value.

CAFC 2026 Dockets:
A direct search of the CAFC 2026 dockets for patent number 8259688 specifically did not yield any immediate results in the provided search snippets. The search results primarily list recent precedential patent-related opinions and information on cases involving named parties, not directly by patent number. While some snippets mentioned Google-related patent litigation in 2026, none explicitly connected to US8259688. Therefore, it cannot be definitively stated from the provided information whether US8259688 is currently involved in a CAFC case in 2026. The Google Patents page for US8259688 notes "Family has litigation," with several US cases filed in District Courts (California Central and Texas Eastern) and a PTAB case (IPR2020-00302), but none of these directly confirm a 2026 CAFC docket entry for this specific patent.