Wireless communications system

• US 20010030951A1
• Filed: 02/13/2001
• Published: 10/18/2001
• Est. Priority Date: 08/13/1998
• Status: Active Grant

• Current Assignee: Unify GmbH & Co. KG (Atos SE)
• Original Assignee: Siemens AG
• Inventors: Kokot, Mathias, Rodler, Hermann
• Granted Patent: US 7,006,459 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 12/6418 Hybrid transport
• CPC Class Codes: H04L 2012/6421 Medium of transmission, e.g. fibre, cable, radio, satellite
• CPC Class Codes: H04L 2012/6472 Internet
• CPC Class Codes: H04L 2012/6481 Speech, voice
• CPC Class Codes: H04L 65/765 intermediate
• CPC Class Codes: H04M 7/006 Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP) , including next generation networks with a packet-switched transport layer H04L65/00 takes precedence; aspects not specific to the type of network H04M3/00; special services in those networks H04M3/42
• CPC Class Codes: H04W 92/045 between access point and backbone network device

Abstract

A communications system includes a base station and mobile terminals. Voice data are transmitted within data packets in asynchronous transmission. The base station has an air interface for implementing first partial connections to the mobile terminals and a network interface to a communication network via which second partial connections to further terminals can be implemented. The base station also contains a router for allocating data packets which arrive in existing first or second partial connections to second or first partial connections. The allocation is done in dependence on an address information item which specifies a terminal in the sense of a transmission destination and is in each case contained in the individual data packets. The mobile terminals also contain in each case a voice compression device and/or a voice decompression device.

Claims

1. A communications system, comprising:

a base station and mobile terminals;

said base station having an air interface for implementing wireless, first partial connections to said mobile terminals and a network interface to a communication network configured to establish second partial connections to further terminals, wherein voice data to be transmitted in each case are transmitted within data packets to be transmitted asynchronously for the first and second partial connections;

the individual data packets each containing an address information item unambiguously specifying one of the mobile terminals or further terminals in the communication network as a transmission destination and directing the data packets to the respective transmission destination within the communication network;

said base station including a router configured to allocate data packets arriving in existing first or second partial connections to second or first partial connections in dependence on the address information item contained in each data packet; and

said mobile terminals each having a voice processing device configured for at least one of compressing voice data to be transmitted to said base station and decompressing compressed voice data transmitted to the respective mobile terminal.

2. The communications system according to

claim 1

, wherein said voice processing device is a voice decompression device for decompressing voice data received by the respective said mobile terminal.

3. The communications system according to

claim 1

, wherein said voice processing device is a voice compression device for compressing voice data to be transmitted from the respective said mobile terminal to said base station.

4. The communications system according to

claim 1

, wherein said voice processing device is a voice compression and decompression device for compressing voice data to be transmitted from the respective said mobile terminal to said base station, and for decompressing voice data received by the respective said mobile terminal.

5. The communications system according to

claim 1

, wherein the communication network is a data network for connecting data processing systems.

6. The communications system according to

claim 1

, wherein said base station is configured to implement the air interface in accordance with the ETSI standard DECT.

7. The communications system according to

claim 1

, wherein said base station is configured to implement the air interface in accordance with the ETSI UMTS definition.

8. The communications system according to

claim 1

, wherein said network interface is configured for connections to a switching system in an ISDN network.

9. The communications system according to

claim 1

, which further comprises a detector device contained in said base station for checking the data packets with respect to quasi-real-time requirements of applications allocated to the data packets via priority information contained in individual data packets;

and a prioritizing device contained in said base station and configured to initiate a preferred transmission of data packets allocated to quasi-real-time applications.

10. The communications system according to

claim 1

, wherein said base station further comprises one of a voice compression device for compressing voice data to be transmitted to a respective said mobile terminal and a voice decompression device for decompressing compressed voice data received from a mobile terminal.