Method and device for improving voice quality in mobile communication network
AssigneeSamsung Electronics Co., Ltd.
InventorTaiho Yoon
Life of this patent
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Abstract
An embodiment of the present invention may provide a method and a device for improving voice quality in a mobile communication network. An embodiment of the present invention may provide a method for improving communication quality by a base station and a device using the same, the method comprising the steps of: receiving, from a terminal, at least one internet protocol (IP)-based voice packet; determining whether a packet loss exists, on the basis of the received packet; generating compensation information corresponding to a lost packet when it is determined that a packet loss exists; and transmitting the compensation information.
Claims16
A method for improving a communication quality of a base station, comprising:
- receiving a plurality of packets from a terminal;
- determining whether a packet loss occurs based on a packet data convergence protocol sequence number (PDCP SN) of the received packets;
- determining whether a size of a lost packet is smaller than a predetermined threshold value, in case that the packet loss has occurred;
- identifying a type of the lost packet based on an interval between the received packets, in case that the size of the lost packet is smaller than the threshold value, wherein the type of the lost packet includes at least one of a sound packet or a silence packet;
- and
- generating compensation information including a comfort noise packet based on the type of the lost packet,
- wherein the comfort noise packet corresponds to the PDCP SN of the lost packet, and
- wherein the comfort noise packet is generated by an adaptive multi rate (AMR) codec or an AMR wideband (AMR-WB) codec.
A base station, comprising:
- a transceiver;
- and
- a controller coupled with the transceiver and configured to:
- control the transceiver to receive a plurality of packets from a terminal,
- determine whether a packet loss occurs based on a packet data convergence protocol sequence number (PDCP SN) of the received packets,
- determine whether a size of a lost packet is smaller than a predetermined threshold value, in case that the packet loss has occurred,
- identify a type of the lost packet based on an interval between the received packets, in case that the size of the lost packet is smaller than the threshold value, wherein the type of the lost packet includes at least one of a sound packet or a silence packet, and
- generate compensation information including a comfort noise packet based on the type of the lost packet,
- wherein the comfort noise packet corresponds to the PDCP SN of the lost packet, and
- wherein the comfort noise packet is generated by an adaptive multi rate (AMR) codec or an AMR wideband (AMR-WB) codec.
Dependencies are inferred from the claim text.