Reduced latency in half-duplex wireless communications
First Claim
Patent Images
1. A method for reducing apparent latency in a half-duplex wireless communication system, comprising:
- receiving a request signal from a first wireless device indicating that a half-duplex communication link is to be established with a second wireless device;
returning a response signal to the first wireless device indicating that the system is ready to accept a half-duplex voice signal from the first wireless device;
receiving the half-duplex voice signal from the first wireless device;
electronically storing the half-duplex voice signal;
sending the half-duplex voice signal to the second wireless device; and
establishing a real-time half-duplex communication link between the first and second wireless devices.
3 Assignments
0 Petitions
Accused Products
Abstract
A system and method for reducing the latency or apparent latency of half-duplex (e.g. push-to-talk “PTT” wireless communications, including storing a voice message or a portion thereof while establishing a real-time half-duplex communication session to minimize the initial wait time experienced by the PTT session originator.
-
Citations
21 Claims
-
1. A method for reducing apparent latency in a half-duplex wireless communication system, comprising:
-
receiving a request signal from a first wireless device indicating that a half-duplex communication link is to be established with a second wireless device;
returning a response signal to the first wireless device indicating that the system is ready to accept a half-duplex voice signal from the first wireless device;
receiving the half-duplex voice signal from the first wireless device;
electronically storing the half-duplex voice signal;
sending the half-duplex voice signal to the second wireless device; and
establishing a real-time half-duplex communication link between the first and second wireless devices. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A system for providing a half-duplex communication session between a first wireless device and a second wireless device, comprising:
-
a full-duplex communication network, coupled to the first and second wireless devices, that carries voice communication signals between the first and second wireless devices;
an encoder, coupled to the communication network, that receives a half-duplex voice signal from the first wireless device and generates an encoded audio file corresponding to the half-duplex voice signal;
a storage device coupled to the encoder that stores the encoded audio file;
a decoder, coupled to the storage device, that decodes the stored audio file and generates a corresponding playback signal; and
a controller that controls the half-duplex communication session, including establishing a connection to the second wireless device, delivering the playback signal to the second wireless device, and establishing a real-time half-duplex communication link between the first and second wireless devices. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A method for reducing apparent latency in a half-duplex wireless communication system, comprising:
-
receiving a request signal from a first wireless device indicating that a push-to-talk (PTT) communication link is to be established with a second wireless device;
returning a response signal to the first wireless device indicating that the system is ready to accept a PTT voice signal from the first wireless device;
receiving the PTT voice signal from the first wireless device;
encoding the received voice signal as a digital audio file;
electronically storing the digital audio file;
establishing a communication link with the second wireless device;
decoding the stored digital audio file;
sending the decoded digital audio file to the second wireless device; and
establishing a real-time half-duplex communication link between the first and second wireless devices.
-
-
17. A system for providing a half-duplex communication session between a first wireless device and a second wireless device, comprising:
-
means for full-duplex communication, coupled to the first and second wireless devices, that carries voice communication signals between the first and second wireless devices;
means for encoding the voice communication signals, coupled to the communication network, that receives a half-duplex voice signal from the first wireless device and generates an encoded audio file corresponding to the half-duplex voice signal;
means for storing the encoded audio file, coupled to the encoding means;
means for decoding the stored audio file, coupled to the storage means, that decodes the stored audio file and generates a corresponding playback signal; and
means for controlling the half-duplex communication session, including establishing a connection to the second wireless device, delivering the playback signal to the second wireless device, and establishing a real-time half-duplex communication link between the first and second wireless devices.
-
-
18. A method for reducing apparent latency in a half-duplex communication session over a full-duplex communication system infrastructure, the method comprising dividing a total latency in establishing a real-time half-duplex communication session into at least two parts:
- a first part substantially comprising a time period from the time a request for the half-duplex session is made until a confirmation response is provided to a maker of the request; and
a second part substantially comprising a time period from the time when the confirmation response is provided to the maker of the request until the time at which the real-time half-duplex communication session is established. - View Dependent Claims (19, 20, 21)
- a first part substantially comprising a time period from the time a request for the half-duplex session is made until a confirmation response is provided to a maker of the request; and
Specification