Conference call feature for spread spectrum cordless telephone
First Claim
Patent Images
1. A method of providing conference calling on an indexed communication resource of a cordless telephone system having a base site, and at least a first and second communication unit, such method including the steps of:
- A) establishing a communication path for exchanging communicated messages between the first communication unit and the base site;
B) enabling the second communication unit to transmit an access request;
C) vacating at least some of the indexed communication resource by the first communication unit in response to enabling the second communication unit; and
D) establishing a communication path for exchanging communicated messages between the second communication unit on the vacated indexed resource and base site.
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Accused Products
Abstract
A conference call feature is offered for use with spread spectrum cordless communication systems. The conference call feature is achieved through the alternate use of redundant communication resources by units on the conference call. The redundant communication resources in spread spectrum communication systems transmit duplicate copies of messages in high noise environments. In residential environments, noise tends to be less of a problem and can, hence, be used to support a conference call feature.
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Citations
21 Claims
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1. A method of providing conference calling on an indexed communication resource of a cordless telephone system having a base site, and at least a first and second communication unit, such method including the steps of:
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A) establishing a communication path for exchanging communicated messages between the first communication unit and the base site; B) enabling the second communication unit to transmit an access request; C) vacating at least some of the indexed communication resource by the first communication unit in response to enabling the second communication unit; and D) establishing a communication path for exchanging communicated messages between the second communication unit on the vacated indexed resource and base site. - View Dependent Claims (2, 3, 4, 5)
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6. A device for providing conference calling on an indexed communication resource of a cordless telephone system having a base site, and at least a first and second communication unit and the base site;
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A) means for establishing a communication path for exchanging communicated messages between the first communication unit and the base site; B) means for enabling the second communication unit to transmit an access request; C) means for vacating at least some of the indexed communication resource by the first communication unit in response to enabling the second communication unit; and D) means for establishing a communication path between the second communication unit on the vacated indexed resource and base site. - View Dependent Claims (7, 8, 9, 10)
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11. A communication unit for providing conference calling on an indexed communication resource of a cordless telephone system having a base site, the communication unit comprising:
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A) means for monitoring an indexed communication resource for a paging request and, upon occasion, a polling word; B) means for establishing a communication path for exchanging communicated messages between the communication unit and the base site; B) means for enabling a second communication unit to transmit an access request; and C) means for vacating at least some of the indexed communication resource by the communication unit in response to enabling the second communication unit.
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12. A method of providing conference call access to at least two communication units on a single, indexed communication resource in a spread spectrum cordless telephone system having a base site transceiver with a resource controller, a plurality of communication resources, and wherein a first communication unit of the at least two communication units is communicating through a base site on an indexed resource of the plurality of resources, such method comprising the steps of:
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A) activating a second communication unit of the at least two communication units; B) monitoring a resource of the plurality of communication resources by the second communication unit for a polling control message transmitted by the resource controller through the base site transceiver; C) transmitting an access request by the second communication unit in response to the polling control message; D) receiving by the first communication unit the request for access; E) vacating at least part of the indexed communication resource by the first communication unit; F) synchronizing the second communication unit to the indexing resource in synchronism with the first communication unit and the base site transceiver on the vacated resource; and G) establishing a communication link between the second communication unit, the base site transceiver, and the first communication unit on the indexed resource. - View Dependent Claims (13, 14, 15)
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16. A spread spectrum cordless telephone communication system allowing conference call communications between two communication units on a single indexing resource through a base site transceiver, such cordless telephone communication system comprising:
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A) an indexing table of communication resources containing a plurality of communication resources; B) a base site transceiver for communicating with a first and, upon occasion, a second communication unit on an indexed resource of the indexing table of communication resources; C) means for synchronizing with and exchanging communicated messages between the first communication unit and the base site transceiver on an indexing resource upon receiving a request for service from the first communication unit in response to a polling request; D) means for transmitting a polling message to and receiving a resource request from the second communication unit by the base site transceiver while the base site transceiver is exchanging communicated messages with the first communication unit; E) means for synchronizing the first and the second communication units to interleaved alternate indexed resources upon receipt of the resource request from the second communication unit in response to the polling request from the base site transceiver; and F) mean for exchanging communicating messages between the first and second communication units. - View Dependent Claims (17, 18, 19, 20)
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21. A cordless telephone communication unit for use with a spread spectrum cordless telephone communication system allowing conference call communications between two communication units on a single indexing resource through a base site transceiver, such cordless telephone communication unit comprising:
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A) means for synchronizing with and exchanging communicated messages between the communication unit and the base site transceiver on an indexing resource upon receiving a request for service from the first communication unit in response to a polling request; B) means for transmitting a polling message to and receiving a resource request from the second communication unit by the base site transceiver while the base site transceiver is exchanging communicated messages with the first communication unit; C) means for synchronizing the first and the second communication units to interleaved alternate indexed resources upon receipt of the resource request from the second communication unit in response to the polling request from the base site transceiver; and D) mean for exchanging communicating messages between the first and second communication units.
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Specification