System and method for semi-persistent and dynamic scheduling and discontinuous reception control
First Claim
Patent Images
1. A method in a wireless network, the method comprising:
- for each mobile device of a plurality of mobile devices, in order to receive from the mobile device, the wireless network;
a) receiving uplink packets from the mobile device using a periodic semi-persistent uplink transmission resource that is aligned with awake periods defined for the mobile device by the network during establishment of discontinuous reception (DRX) mode;
b) for each additional uplink packet or sub-packet for the mobile device;
i) during one of the awake periods, receiving a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet;
ii) dynamically allocating the additional uplink transmission resource such that the additional uplink transmission resource occurs during one of the awake periods defined for the mobile device;
iii) during one of the awake periods defined for the mobile device, transmitting signaling that defines the additional uplink allocation;
iv) receiving the additional uplink packet or sub-packet using the additional uplink transmission resource.
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Abstract
Methods of combining semi-persistent resource allocation and dynamic resource allocation are provided. Packets, such as VoIP packets, are transmitted on the uplink and downlink using respective semi-persistent resources. For each mobile device, awake periods and sleep periods are defined. The semi-persistent resources are aligned with the awake periods so that most of the time the mobile device can turn off its wireless access radio during the sleep periods. In addition, signalling to request, and to allocate, resources for additional packets are transmitted during the awake periods, and the resources allocated for the additional packets are within the awake windows.
141 Citations
19 Claims
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1. A method in a wireless network, the method comprising:
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for each mobile device of a plurality of mobile devices, in order to receive from the mobile device, the wireless network; a) receiving uplink packets from the mobile device using a periodic semi-persistent uplink transmission resource that is aligned with awake periods defined for the mobile device by the network during establishment of discontinuous reception (DRX) mode; b) for each additional uplink packet or sub-packet for the mobile device; i) during one of the awake periods, receiving a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet; ii) dynamically allocating the additional uplink transmission resource such that the additional uplink transmission resource occurs during one of the awake periods defined for the mobile device; iii) during one of the awake periods defined for the mobile device, transmitting signaling that defines the additional uplink allocation; iv) receiving the additional uplink packet or sub-packet using the additional uplink transmission resource. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method in a mobile device, the method comprising:
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controlling a transmission capability of the mobile device during a plurality of awake periods and a plurality of sleep periods, the awake periods alternating in time with the sleep periods, such that the transmission capability is on during all of the awake periods and such that the transmission capability is off for at least some of the sleep periods; transmitting uplink packets from the mobile device using a periodic semi-persistent uplink transmission resource that is aligned with the awake periods defined for the mobile device by a network during establishment of discontinuous reception (DRX) mode; for each additional uplink packet or sub-packet for the mobile device; i) during one of the awake periods defined for the mobile device, transmitting a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet; ii) during one of the awake periods, receiving signaling that defines the additional uplink allocation, the additional uplink allocation being allocated to occur during one of the awake periods defined for the mobile device; iii) during one of the awake periods, transmitting the additional uplink packet or sub-packet using the additional uplink transmission resource. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A wireless network comprising:
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a semi-persistent scheduler configured to allocate a periodic semi-persistent uplink transmission resource that is aligned with awake periods defined for a mobile device by the network during establishment of discontinuous reception (DRX) mode for receiving transmissions from the mobile device; a processor configured to; a) control a receiver to receive uplink packets from the mobile device using the semi-persistent uplink transmission resource allocated by the semi-persistent scheduler; b) for each additional uplink packet or sub-packet from the mobile device; i) during one of the awake periods defined for the mobile device, control the receiver to receive a request for an additional uplink transmission resource; ii) during one of the awake periods defined for the mobile device, control a transmitter to transmit signaling that defines the additional uplink resource allocation; iii) control the receiver to receive the additional uplink packet or sub-packet using the additional uplink transmission resource; and a dynamic scheduler configured to dynamically allocate the respective additional uplink transmission resource to transmit each additional packet or sub-packet, the additional resource being allocated to occur during one of the awake periods defined for the mobile device.
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19. A mobile device comprising:
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a wireless access radio; a radio manager configured to control a transmission capability of the wireless access radio during a plurality of awake periods and a plurality of sleep periods, the awake periods alternating in time with the sleep periods, such that the transmission capability is always on during each of the awake periods, and the transmission capability is off for at least some of the sleep periods; the mobile device being configured to; transmit uplink packets on a periodic semi-persistent uplink transmission resource that is aligned with the plurality of awake periods defined for the mobile device by a network during establishment of discontinuous reception (DRX) mode; for each additional uplink packet or sub-packet for the mobile device; i) during one of the awake periods, transmit a request for an additional uplink transmission resource; ii) during one of the awake periods, receive signaling that defines the additional uplink allocation, the additional uplink allocation being allocated to occur during one of the awake periods defined for the mobile device; and iii) during one of the awake periods, transmitting the additional uplink packet or sub-packet on the additional uplink transmission resource.
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Specification