Methods and apparatus for providing dynamic information in a wireless information channel

• US 8,548,465 B2
• Filed: 04/23/2010
• Issued: 10/01/2013
• Est. Priority Date: 04/23/2010
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Apple Inc.
• Inventors: Mueck, Markus, Schmidt, Andreas
• Primary Examiner(s): Afshar, Kamran
• Assistant Examiner(s): Iqbal, Khawar
• Application Number:
  US12/766,806
• Publication Number:
  US 20110263250A1
• Time in Patent Office: 1,257 Days
• Field of Search: 455/434, 455507-509, 455/444, 455/436, 455/517, 455/561, 370/329
• US Class Current: 455/434
• CPC Class Codes: H04H 20/24 Arrangements for distribution of identical information via broadcast system and non-broadcast system
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 36/0007 for multicast or broadcast services, e.g. MBMS multicast or broadcast application services H04W4/06; resource management for broadcast services H04W72/30; connection management for selective distribution or broadcast H04W76/40
• CPC Class Codes: H04W 36/0009 for a plurality of users or terminals, e.g. group communication or moving wireless networks user group management H04W4/08; processing of subscriber group data H04W8/186
• CPC Class Codes: H04W 36/0033 with transfer of context information
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 72/30 Resource management for broadcast services
• CPC Class Codes: H04W 84/042 Public Land Mobile systems, e.g. cellular systems
• CPC Class Codes: H04W 84/20 Master-slave selection or change arrangements

Abstract

Methods and apparatus for transmission of selected segments of information (such as system context information). In one embodiment, a cognitive pilot channel base station (CPC-BS) is disclosed that enables the distribution of context information to various user equipment and mobile devices in an efficient manner. The exemplary CPC-BS is also optionally capable of distributing sensing tasks to external entities, and compiling the data results from these distributed tasks for use in performing future CPC transmissions based e.g., on the operational mode of the system. On-demand provisioning of context information over both broadcast and peer-to-peer communications with served users is also disclosed. In addition to the distribution of context information via the use of a single CPC-BS, master-slave relationships between multiple CPC-BSs are also described, which permit for a distributed architecture in providing context information to served users.

Claims

1. A context-adaptive base station for use in a wireless network, comprising:

a processing apparatus coupled to both a storage medium and a wireless network interface, the storage medium having at least one computer program stored thereon, the at least one computer program that, when executed by the processing apparatus;

store requests from one or more portable devices, the requests comprising a request for context information from the base station, the context information comprising one or more data payloads useful for identifying information pertinent to one or more aspects of the wireless network or subscriber classes;

determine whether a response to the request for context information should be transmitted; and

where the determination indicates that the response should be transmitted, transmit the response according to a determined message type.

2. The base station of claim 1, wherein the determined message type is selected from the group consisting of a broadcast type, a multi-cast type and a unicast type.

3. The base station of claim 1, wherein the determination of whether the response should be transmitted comprises:

determination of a geographic location of one or more of the requests; and

evaluation of a need for context information based at least in part on the geographic location.

4. The base station of claim 1, wherein the determination of whether the response should be transmitted comprises determination of an operational mode of the network.

5. The base station of claim 4, wherein the operational mode is selected from the group consisting of:

(i) a first mode where the base station has knowledge about its served portable devices;

(ii) a second mode where the base station has no knowledge about its served portable devices; and

(iii) a third mode where the base station has knowledge about only some of the served portable devices.

6. The base station of claim 1, wherein the at least one computer program is further configured to:

receive first context information from the one or more portable devices;

determine whether the first context information requires update; and

where the first context information requires update, cause the transmission of the response.

7. The base station of claim 6, wherein the transmission of the response comprises a transmission of only a changed or updated portion of the context information.

8. The base station of claim 7, wherein the wireless network comprises a cellular network, and the changed or updated portion of the context information is transmitted via a pilot channel resource of the cellular network.

9. A context information system for use in a wireless network, comprising:

a master context information base station;

a slave context information base station; and

a portable device configured to receive context data from both the master context information base station and the slave context information base station;

wherein when a first portion of the received context data conflicts with a second portion of the received context data, the first portion of the received context data is retained or discarded based at least in part on a prioritization of the first and second portions of the context data; and

wherein the context data received is prioritized by the portable device based on a context information base station type that transmitted the context data.

10. The context information system of claim 9, wherein the slave context information base station provides context data over a substantially smaller coverage area as compared with the master context information base station.

11. The contextual information system of claim 9, wherein the first portion of the received context data is generated by the master base station, and the second portion of the received context data is generated by the slave base station, and the first portion of the received context data is retained based at least in part on prioritization of the master base station over the slave base station.

12. The contextual information system of claim 9, wherein the first portion of the received context data is received at a first time, and the second portion of the received context data is generated at a second time earlier than the first time, and the first portion of the received context data is retained based at least in part on prioritization of a more recent first portion.