US 2015/0312781 A1Published application

Method and apparatus for responding to a potential mass random access event

AssigneeMotorola Solutions, Inc.

InventorsDIPENDRA M. CHOWDHARY, JOHN P. BELMONTE, THOMAS B. BOHN, SATYANARAYAN R. PANPALIYA, BADARINATH PATIBANDLA

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Abstract

A radio controller monitors a radio channel for a first period of time and determines a first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during that time. Responsive to determining that the first indication is above a predetermined threshold indicative of an interference condition, causing an instruction to be broadcast identifying a subset of subscriber devices allowed transmitting random access requests on the radio channel. The radio controller monitors the radio channel for a second period of time and determines a second indication during that time. If the second indication is an improvement over the first indication, the radio controller determines that the interference condition is caused by the mass random access event.

Claims20

Dependent claims

A method for responding to a mass random access event, the method comprising:

monitoring, at a radio controller, a radio channel for a first period of time and determining a first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during the first period of time;
responsive to determining, by the radio controller, that the first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during the first period of time is above a predetermined threshold indicative of an interference condition comprising one of an interferer and mass random access event, causing an instruction to be broadcast identifying a subset of subscriber devices, less than all subscriber devices, allowed to transmit random access requests on the radio channel;
monitoring, at the radio controller, the radio channel for a second period of time and determining a second indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during the second period of time;
and
if the second indication is an improvement over the first indication, determining, by the radio controller, that the interference condition is caused by the mass random access event.

2 more elements

A radio controller in a radio system, the controller comprising:

a transceiver;
a data store;
and
one or more processors configured to:
monitor, via the transceiver, a radio channel for a first period of time and determine a first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during the first period of time;
responsive to determining that the first indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during the first period of time is above a predetermined threshold indicative of an interference condition comprising one of an interferer and mass random access event, cause an instruction to be broadcast, via the transceiver, identifying a subset of subscriber devices, less than all subscriber devices, allowed to transmit random access requests on the radio channel;
monitoring, via the transceiver, the radio channel for a second period of time and determining a second indication of signals received without detecting synchronization or with detecting synchronization but failing error correction during the second period of time;
and
if the second indication is an improvement over the first indication, determining that the interference condition is caused by the mass random access event.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/264,821Filed 29 Apr 2014
Published: 29 Oct 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04W 24/04
Supervisory, monitoring or testing arrangements: arrangements for maintaining operational condition
H04W 28/0236
Based on communication conditions: radio quality, e.g. interference, losses or delay
H04W 48/02
Access restriction ; Network selection; Access point selection: access restriction performed under specific conditions
H04W 74/0833
Non-scheduled access, e.g. ALOHA: random access procedures, e.g. with 4-step access

Family

US 9,277,428 B2Related patent
US 2015/0312781 A1This patent

From the US filing history. Foreign family members aren’t listed.

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