Base station having transceivers used for communicating voice and packet data signals

• US 6,359,866 B1
• Filed: 12/17/1996
• Issued: 03/19/2002
• Est. Priority Date: 12/17/1996
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Svensson, Håkan, Allinger, Lennart
• Primary Examiner(s): Vincent, David R.
• Assistant Examiner(s): PHUNKULH, BOB A
• Application Number:
  US08/768,121
• Time in Patent Office: 1,918 Days
• Field of Search: 370/328, 370/331, 370/352, 370/353, 370/354, 455/527, 455/553, 455/560, 455/561
• US Class Current: 370/331
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A method and apparatus for providing support for voice communications and data communications at a base station which has a plurality of transceivers, each having a voice mode of operation and a data mode of operation, is disclosed. A first voice call is assigned to a first transceiver, wherein the mode of the transceiver is set to the voice mode of operation. A data transmission is assigned to a second available transceiver, wherein the mode of the transceiver is set to the data mode of operation. The data transmission is halted when a second voice call needs to be handled by the second transceiver. The mode of operation of the second transceiver is changed from the data mode to the voice mode and the second call is initiated. The data transmission is then assigned to the next available transceiver as long as a voice call does not need to be carried, wherein the mode of the transceiver is set to the data mode of operation.

Claims

1. A base station which supports voice communications and packet data communications, comprising:

a plurality of transceivers for transmitting and receiving voice and packet data signals from a plurality of remote stations, wherein each transceiver has a voice mode of operation for communicating voice signals and a subset of the plurality of transceivers also have a packet data mode of operation for communicating packet data signals using a connectionless protocol;

voice control means connected to each of said plurality of transceivers for controlling the transmission and reception of voice communications at the base station;

packet data control means connected to said subset of said plurality of transceivers for controlling the transmission and reception of packet data signals at the base station;

means for switching between said voice and packet data modes such that each transceiver operates in the packet data mode only when it is not needed to operate in the voice mode;

means for performing an intra-cell handover of a voice call being handled by a transceiver in said subset of transceivers to one of the transceivers not in the subset when the transceiver outside the subset of transceivers becomes available so as to free the transceiver in the subset to handle packet data communications.

2. A base station according to claim 1, wherein a transceiver operating in the packet data mode is switched to the voice mode regardless of whether a packet data communication has been completed.

3. A method for providing support for voice communications and data communications at a base station which has a plurality of transceivers, all of said transceivers having a voice mode of operation and a subset of the plurality of transceivers also having a packet data mode of operation, comprising the steps of;

assigning a first voice call to a first transceiver, wherein the mode of the transceiver is set to the voice mode of operation;

assigning a second voice call to an available transceiver in said subset of transceivers when the transceivers outside said subset are not available;

performing an intra-cell handover of the second voice call handled by a transceiver in said subset of transceivers to a transceiver outside said subset when the transceiver becomes available so as to make the transceiver in the subset available for a packet data transmission using a connectionless protocol.

4. A wireless communication system which supports voice communications and packet data communications to a plurality of remote stations, comprising:

at least one mobile switching center for controlling the operation of the wireless communication system; and

at least one base station operating under the control of the mobile switching center including;

a plurality of transceivers for transmitting and receiving voice and packet data signals from a plurality of remote stations, wherein each transceiver has a voice mode of operation for communicating voice signals and a subset of the plurality of transceivers also have a packet data mode of operation for communicating packet data signals using a connectionless protocol;

voice control means connected to each of said plurality of transceivers for controlling the transmission and reception of voice signals at the base station;

packet data control means connected to said subset of said plurality of transceivers for controlling the transmission and reception of packet data signals at the base station;

means for switching between said operational modes of the transceivers in response to transceiver mode switch commands received from said mobile switching center such that each transceiver operates in the packet data mode only when it is not needed to operate in the voice mode;

means for performing an intra-cell handover of a voice call being handled by a transceiver in said subset of transceivers to one of the transceivers not in the subset when the transceiver outside the subset of transceivers becomes available so as to free the transceiver in the subset to handle packet data communications.

5. A wireless communication system according to claim 4, wherein said at least one mobile switching center sends transceiver mode switch commands to said at least one base station instructing the base station to change modes of the transceivers.

6. A wireless communication system according to claim 4, wherein a transceiver operating in the packet data mode is switched to the voice mode regardless of whether packet data communication has been completed.