US 10,320,693 B2Granted

Method for packet data convergence protocol count synchronization

AssigneeQUALCOMM Incorporated

InventorsYu-Ting Yu, Gavin Bernard Horn, Shailesh Maheshwari, Vanitha Kumar, Gang Andy Xiao

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Abstract

Aspects of the present disclosure provide mechanisms for count synchronization in a wireless communication network. A respective count value may be maintained for each packet transmitted over a wireless connection, where each count value includes a respective hyper frame number and a respective sequence number. To synchronize a current count value associated with a current packet, a count synchronization may be initiated to transmit at least a current hyper frame number of the current count value over the wireless connection.

Claims24

Dependent claims

A method of count synchronization in a wireless communication network, the method comprising:

maintaining, at a transmitting wireless communication device, a respective count value for each packet of a plurality of packets transmitted over a wireless connection with a receiving wireless communication device, each count value comprising a respective hyper frame number and a respective sequence number;
determining, by the transmitting wireless communication device, that a signal-to-noise ratio of the wireless connection has dropped below a threshold;
initiating, by the transmitting wireless communication device, a count synchronization of a current count value in response to the signal-to-noise ratio dropping below the threshold, the current count value corresponding to the respective count value of a current packet from among the plurality of packets;
and
transmitting at least a current hyper frame number of the current count value from the transmitting wireless communication device to the receiving wireless communication device over the wireless connection to synchronize the current count value.

2 more elements

An apparatus configured for count synchronization in a wireless communication network, comprising:

a transceiver configured to communicate with a receiving wireless communication device;
a memory;
and
a processor communicatively coupled to the transceiver and the memory, the processor configured to:
maintain a respective count value for each packet of a plurality of packets transmitted over a wireless connection with the receiving wireless communication device, each count value comprising a respective hyper frame number and a respective sequence number;
determine that a signal-to-noise ratio of the wireless connection has dropped below a threshold;
initiate a count synchronization of a current count value in response to the signal-to-noise ratio dropping below the threshold, the current count value corresponding to the respective count value of a current packet from among the plurality of packets;
and
transmit at least a current hyper frame number of the current count value to the receiving wireless communication device over the wireless connection to synchronize the current count value.

6 more elements

A transmitting wireless communication device configured for count synchronization in a wireless communication network, comprising:

means for maintaining a respective count value for each packet of a plurality of packets transmitted over a wireless connection with a receiving wireless communication device, each count value comprising a respective hyper frame number and a respective sequence number;
means for determining that a signal-to-noise ratio of the wireless connection has dropped below a threshold;
means for transmitting, in response to the signal-to-noise ratio dropping below the threshold, at least a current hyper frame number of a current count value to the receiving wireless communication device over the wireless connection to synchronize the current count value, the current count value corresponding to the respective count value of a current packet from among the plurality of packets.

Dependencies are inferred from the claim text.

Facts

Application: 15/621,321Filed 13 Jun 2017 · us provisional application
Priority: 6 Jul 2016
Published: US 2018/0013685 A111 Jan 2018
Granted: 11 Jun 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification14 codes

H04L 47/34
Flow control; Congestion control: ensuring sequence integrity, e.g. using sequence numbers
H04L 43/022
Capturing of monitoring data: by sampling
H04L 43/0829
Errors, e.g. transmission errors: packet loss
H04L 43/106
Active monitoring, e.g. heartbeat, ping or trace-route: using time related information in packets, e.g. by adding timestamps

Family

Application62/359,135Us provisional application · filed 6 Jul 2016
US 2018/0013685 A1Pre-grant publication · published 11 Jan 2018
US 10,320,693 B2This patent

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

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