Synchronizing Uplink and Downlink Transmissions in a Wireless Device
First Claim
1. A method for baseband layer operation of a wireless user equipment (UE) device, the method comprising:
- establishing a connection with a network via a wireless link with a first cell;
receiving uplink data from an application layer in the UE, wherein the uplink data comprises data to be transmitted to the network via the wireless link;
storing the uplink data in a buffer;
receiving a downlink grant via the wireless link;
receiving downlink data via the wireless link during the downlink grant;
transmitting an uplink scheduling request via the wireless link in response to receiving the uplink data and receiving the downlink grant;
receiving an uplink grant via the wireless link in response to transmitting the uplink scheduling request;
transmitting the buffered uplink data via the wireless link during the uplink grant.
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Accused Products
Abstract
Synchronizing uplink and downlink transmissions by a wireless user equipment (UE) device. A connection with a network may be established via a wireless link with a cell. The UE may operate in an active state during first periods of time in which uplink or downlink communications may be performed between the UE and the network. The UE may operate in a reduced-power state during second periods of time in which uplink and downlink communications are not performed. The first periods of time may alternate with the second periods of time in a repeating manner. Uplink data generated by the UE may be buffered during second periods of time and transmitted during first periods of time. Buffering uplink data in this manner may prevent the UE from immediately transitioning from the reduced-power state to the active state to transmit uplink data, which may conserve battery of the UE.
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Citations
26 Claims
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1. A method for baseband layer operation of a wireless user equipment (UE) device, the method comprising:
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establishing a connection with a network via a wireless link with a first cell; receiving uplink data from an application layer in the UE, wherein the uplink data comprises data to be transmitted to the network via the wireless link; storing the uplink data in a buffer; receiving a downlink grant via the wireless link; receiving downlink data via the wireless link during the downlink grant; transmitting an uplink scheduling request via the wireless link in response to receiving the uplink data and receiving the downlink grant; receiving an uplink grant via the wireless link in response to transmitting the uplink scheduling request; transmitting the buffered uplink data via the wireless link during the uplink grant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless user equipment (UE) device, the UE comprising:
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a radio, comprising one or more antennas for performing wireless communication; device logic, wherein the device logic is configured to; establish a connection with a network via a wireless link; communicate with the network via the wireless link using connected-mode discontinuous reception (C-DRX), wherein to use C-DRX the UE is configured to alternate between an active state in which communications are performed between the UE and the network and a reduced-power state in which communications are not performed between the UE and the network; receive an indication to synchronize uplink transmissions with downlink transmissions in conjunction with C-DRX operation; synchronize uplink transmissions with downlink transmissions in conjunction with C-DRX operation in response to the indication. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A non-transitory computer-accessible memory medium comprising program instructions for a wireless user equipment (UE) device to communicate with a network via a wireless link, wherein the program instructions are executable to:
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establish a connection with a network via a wireless link; at a first time, wherein the UE is operating in a reduced-power state at the first time; buffer uplink data generated by the UE, wherein the uplink data is configured for transmission via the wireless link, wherein the uplink data is generated by the UE; at a second time, wherein the UE is operating in an active state at the second time, wherein the second time occurs after the first time; transmit a request for an uplink grant via the wireless link, wherein the request is for an uplink grant in which to transmit the buffered uplink data; receive an indication of an uplink grant via the wireless link in response to the request for an uplink grant; and transmit the buffered uplink data via the wireless link during the uplink grant. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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24. A non-transitory computer-accessible memory medium comprising program instructions for a wireless user equipment (UE) device to communicate with a network via a wireless link, wherein the program instructions are executable to:
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operate the UE in an active state during first periods of time in which uplink or downlink communications are performed between the UE and the network; operate the UE in a reduced-power state during second periods of time in which uplink and downlink communications are not performed between the UE and the network, wherein the first periods of time alternate with the second periods of time in a repeating manner; buffer uplink data generated by the UE during each of a plurality of second periods of time; transmit buffered uplink data during each of a plurality of first periods of time. - View Dependent Claims (25, 26)
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Specification