Method for allocating a temporary resource request identifier for accessing a target base station

• US 8,498,645 B2
• Filed: 07/13/2012
• Issued: 07/30/2013
• Est. Priority Date: 10/01/2007
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola Mobility LLC (Lenovo Group Ltd.)
• Inventors: Narasimha, Murali, Vukovic, Ivan N.
• Primary Examiner(s): Kasraian, Allahyar
• Application Number:
  US13/548,370
• Publication Number:
  US 20120329459A1
• Time in Patent Office: 382 Days
• Field of Search: 455/436, 455/450, 455/509, 455/510, 370/331
• US Class Current: 455/436
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 8/26 Network addressing or numbering for mobility support

Abstract

The present disclosure provides for a method for allocating by a plurality of source base stations of a cellular wireless communication support infrastructure a temporary resource request identifier to a wireless communication device for accessing a target base station. The method includes identifying a list of temporary resource request identifiers associated with the target base station for use by one or more wireless communication devices, wherein the list includes a subset of one or more part time temporary resource request identifiers whose respective assignment to a corresponding grouping of one or more source base stations at a particular time is rotated between more than one of the plurality of corresponding groupings of one or more source base stations.

Claims

1. A method for allocating a random access identifier from a plurality of available random access identifiers to a wireless communication device for transmitting to a target base station of a cellular wireless communication support infrastructure in one of a plurality of communication time intervals, the method comprising:

identifying a random access identifier associated with the target base station for transmission by a plurality of wireless communication devices requesting resources from the target base station, wherein an assignment of the random access identifier to a particular wireless communication device of the plurality of wireless communication devices at a particular time is rotated between the plurality of wireless communication devices;

detecting a desire for resources from the target base station for one or more of the plurality of wireless communication devices;

allocating the random access identifier to the particular wireless communication device, where the allocation includes a limitation of usage corresponding to particular communication time intervals of the plurality of communication time intervals during which the random access identifier can be transmitted to the target base station by the particular communication device, wherein the limitation of usage defines a subset of the plurality of communication time intervals during which the random access identifier can be used by any one of the plurality of wireless communication devices; and

transmitting, by the particular wireless communication device, the random access identifier on a random access channel of the target base station, in accordance with the limitation of usage.

2. A method in accordance with claim 1, wherein the subset of the plurality of communication time intervals includes one of every N communication time intervals, where N is an integer.

3. A method in accordance with claim 1, wherein the randmom access identifier is allocated to multiple wireless communication devices, wherein the limitation of usage for each of the multiple wireless communication devices corresponds to a different subset of the plurality of communication time intervals.

4. A method in accordance with claim 1, wherein the subset of the plurality of communication time intervals includes one of every odd communication time interval or every even communication time interval.

5. A method in accordance with claim 1, wherein the desire from the particular one of the plurality of wireless communication devices for resources from the target base station, is detected by a source base station with which the particular one of the plurality of wireless communication devices is currently communicating, and the detected desire is communicated to the target base station;

and

wherein the target base station allocates the random access identifiers, which is communicated to the particular one of the plurality of wireless communication devices via the source base station.