Radio resource signaling during network congestion in a mobile wireless device

a mobile wireless communication and radio resource technology, applied in the field of wireless mobile communications, can solve the problems of adding unnecessary levels of signaling traffic to an already overloaded radio access network, scarce radio resources in the radio access network,

Inactive Publication Date: 2012-01-12
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Radio resources in the radio access network, however, can be scarce, and the wireless communication network can release the radio resources allocated for the data connection during an idle period while maintaining the PDP context, thus placing the data connection in a preservation mode.
These repeated service requests can add unnecessary levels of signaling traffic to an already overloaded radio access network.

Method used

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  • Radio resource signaling during network congestion in a mobile wireless device
  • Radio resource signaling during network congestion in a mobile wireless device
  • Radio resource signaling during network congestion in a mobile wireless device

Examples

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Embodiment Construction

[0007]The described embodiments relate generally to wireless mobile communications. More particularly, a method and apparatus is described for radio resource signaling during periods of radio access network congestion in a mobile wireless communication device.

[0008]In one embodiment, a method for radio link control in a mobile wireless device can include at least the following steps. While a packet data protocol context between the mobile wireless device and while a wireless communication network is active and no radio resources are allocated by the wireless communication network on which to transmit data packets, the mobile wireless device executes the following steps repeatedly when pending data packets exist in a pending data packet buffer. A retry counter is set to a non-zero maximum integer retry value after receiving each new data packet to transmit. A transceiver in the mobile wireless device transmits a service request to establish radio resources between the mobile wireless...

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Abstract

A method for radio link control in a mobile wireless communication device The mobile wireless device transmits a sequence of service requests to establish radio resources with a wireless communication network for a data packet in a pending data buffer. When no radio resources are allocated in response to the transmitted sequence of service requests, the mobile wireless device sets a minimum threshold for the pending data buffer, discards all pending data packets above the minimum threshold and discards the oldest pending data packet. The mobile wireless device repeats transmitting and discarding until a radio resource is allocated or the pending data packet buffer is empty. A retry interval between successive service requests is increased after transmitting each sequence of service requests until reaching a maximum retry interval value.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This patent application takes priority under 35 U.S.C. 119(e) to U.S. Provisional Patent Application Ser. No. 61 / 362,662 entitled, “METHOD AND APPARATUS FOR RADIO RESOURCE SIGNALING DURING NETWORK CONGESTION IN A MOBILE WIRELESS DEVICE” by Shiva et al. filed Jul. 8, 2010 which is incorporated by reference herein in its entirety for all purposes.TECHNICAL FIELD[0002]The described embodiments relate generally to wireless mobile communications. More particularly, a method and apparatus is described for radio resource signaling during periods of radio access network congestion in a mobile wireless communication device.BACKGROUND OF THE INVENTION[0003]Mobile wireless communication devices, such as a cellular telephone or a wireless personal digital assistant, can provide a wide variety of communication services including, for example, voice communication, text messaging, internet browsing, and electronic mail. Mobile wireless communication dev...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04W72/04
CPCH04W72/04H04W88/02H04W28/0205H04W76/18H04W72/21H04W72/52H04W72/12H04W28/02
Inventor SHIVA, SUNDARARAMAN V.XING, LONGDASHI, JIANXIONG
Owner APPLE INC
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