Dual SIM dual active subscriber identification module with a single transmit chain and dual or single receive chain
First Claim
1. A method of managing multiple connections for an access terminal, comprising:
- establishing a first call at the access terminal for a first subscription associated with the access terminal;
accepting a second call at the access terminal for a second subscription associated with the access terminal while maintaining the first call in an active state;
at the access terminal, establishing a transmit timesharing schedule for a single radio frequency (RF) transmit chain of the access terminal, wherein the transmit timesharing schedule determines timing of access to the single RF transmit chain for uplink transmissions associated with the first call and uplink transmissions associated with the second call when the access terminal is operating in a first mode; and
controlling access to the single RF transmit chain in accordance with the transmit timesharing schedule.
1 Assignment
0 Petitions
Accused Products
Abstract
A method, an apparatus, and a computer program product are provided. The apparatus may be configured to establish a first call for a first subscription, and accept a second call for a second subscription while maintaining the first call. A single RF transmit chain may be scheduled for uplink transmissions associated with the first call and uplink transmissions associated with the second call. A timesharing schedule for the transmit chain may determine timing for the uplink transmissions associated with the first call is transmitted and when the uplink transmissions associated with the second call is transmitted on the transmit chain. Downlink transmissions associated with the first and second calls may be received using different receive chain. Downlink transmissions associated with the first and second calls may be received using the same receive chain.
28 Citations
30 Claims
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1. A method of managing multiple connections for an access terminal, comprising:
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establishing a first call at the access terminal for a first subscription associated with the access terminal; accepting a second call at the access terminal for a second subscription associated with the access terminal while maintaining the first call in an active state; at the access terminal, establishing a transmit timesharing schedule for a single radio frequency (RF) transmit chain of the access terminal, wherein the transmit timesharing schedule determines timing of access to the single RF transmit chain for uplink transmissions associated with the first call and uplink transmissions associated with the second call when the access terminal is operating in a first mode; and controlling access to the single RF transmit chain in accordance with the transmit timesharing schedule. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. An access terminal configured for wireless communication, comprising:
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a radio frequency (RF) transmit chain; and a processing circuit configured to; establish a first call for a first subscription associated with the access terminal using the RF transmit chain; accept a second call for a second subscription associated with the access terminal using the RF transmit chain, while maintaining the first call in an active state; establish a transmit timesharing schedule for the RF transmit chain, wherein the transmit timesharing schedule determines timing of access to the RF transmit chain for uplink transmissions associated with the first call and uplink transmissions associated with the second call when the access terminal is operating in a first operating mode; and control access to the RF transmit chain in accordance with the transmit timesharing schedule. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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27. An access terminal configured to manage multiple wireless calls, comprising:
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means for establishing a first call for a first subscription associated with the access terminal; means for accepting a second call for a second subscription associated with the access terminal while maintaining the first call in an active state; means for establishing a transmit timesharing schedule for a single radio frequency (RF) transmit chain provided by the access terminal, wherein the transmit timesharing schedule determines timing of access to the single RF transmit chain for uplink transmissions associated with the first call and uplink transmissions associated with the second call when the access terminal is operating in a first mode; and means for controlling access to the single RF transmit chain in accordance with the transmit timesharing schedule, wherein the means for controlling access to the single RF transmit chain includes a first switch provided in a modem or between the modem and the single RF transmit chain, and wherein the first switch is operated in accordance with the transmit timesharing schedule. - View Dependent Claims (28)
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29. A non-transitory processor-readable storage medium having one or more instructions which, when executed by at least one processing circuit of an access terminal, cause the at least one processing circuit to:
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establish a first call for a first subscription associated with the access terminal; accept a second call for a second subscription associated with the access terminal while maintaining the first call in an active state; establish a transmit timesharing schedule for a single radio frequency (RF) transmit chain of the access terminal, wherein the transmit timesharing schedule determines timing of access to the single RF transmit chain for uplink transmissions associated with the first call and uplink transmissions associated with the second call when the access terminal is operating in a first mode; and control access to the single RF transmit chain in accordance with the transmit timesharing schedule, wherein controlling access to the single RF transmit chain includes controlling a first switch in accordance with the transmit timesharing schedule, wherein the first switch is provided in a modem or between the modem and the single RF transmit chain. - View Dependent Claims (30)
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Specification