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;
receiving uplink packets from the mobile device using a periodic semi-persistent uplink transmission resource that is aligned with discontinuous reception (DRX) awake periods, wherein the semi-persistent uplink transmission resource is scheduled using semi-persistent scheduling;
for each additional uplink packet or sub-packet for the mobile device;
receiving a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet;
during one of the awake periods defined for the mobile device, transmitting, by the network, signaling that defines the additional uplink transmission resource to transmit the additional packet or sub-packet, the additional uplink transmission resource being allocated to occur within one of the awake periods, wherein the additional uplink transmission resource is scheduled using dynamic scheduling;
during one of the awake periods defined for the mobile device, receiving the additional uplink packet using the additional uplink transmission resource;
de-allocating the semi-persistent 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.
144 Citations
20 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; receiving uplink packets from the mobile device using a periodic semi-persistent uplink transmission resource that is aligned with discontinuous reception (DRX) awake periods, wherein the semi-persistent uplink transmission resource is scheduled using semi-persistent scheduling; for each additional uplink packet or sub-packet for the mobile device; receiving a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet; during one of the awake periods defined for the mobile device, transmitting, by the network, signaling that defines the additional uplink transmission resource to transmit the additional packet or sub-packet, the additional uplink transmission resource being allocated to occur within one of the awake periods, wherein the additional uplink transmission resource is scheduled using dynamic scheduling; during one of the awake periods defined for the mobile device, receiving the additional uplink packet using the additional uplink transmission resource; de-allocating the semi-persistent uplink transmission resource. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method in a mobile device, the method comprising:
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controlling a reception capability of the mobile device during a plurality of discontinuous reception (DRX) awake periods and a plurality of sleep periods, the awake periods alternating in time with the sleep periods, such that the reception capability is always on during each of the awake periods, and the reception capability is off for at least some of the sleep periods; transmitting at the mobile device uplink packets on a periodic semi-persistent uplink transmission resource that is aligned with the plurality of awake periods, wherein the semi-persistent uplink transmission resource is scheduled using semi-persistent scheduling; for each additional uplink packet or sub-packet for the mobile device; transmitting a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet; during one of the awake periods, receiving signaling from the network that defines an additional uplink transmission resource to transmit the additional uplink packet or sub-packet, wherein the additional uplink transmission resource is scheduled using dynamic scheduling; during one of the awake periods, transmitting the additional uplink packet or sub-packet on the additional uplink transmission resource; determining that the semi-persistent uplink transmission resource has been de-allocated. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A wireless network comprising:
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a semi-persistent scheduler for allocating a periodic semi-persistent uplink transmission resource that is aligned with discontinuous reception (DRX) awake periods, wherein the semi-persistent uplink transmission resource is scheduled using semi-persistent scheduling; a receiver configured to, for each mobile device of a plurality of mobile devices, in order to receive from the mobile device; receive uplink packets from the mobile device using the semi-persistent uplink transmission resource allocated by the semi-persistent scheduler; for each additional uplink packet or sub-packet for the mobile device; receive a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet; during one of the awake periods defined for the mobile device, transmit signaling that defines the additional uplink transmission resource to transmit the additional packet or sub-packet, the additional uplink transmission resource being allocated to occur within one of the awake periods defined for the mobile device, wherein the additional uplink transmission resource is scheduled using dynamic scheduling; during one of the awake periods defined for the mobile device, receive the additional uplink packet using the respective additional uplink transmission resource; and de-allocate the semi-persistent uplink transmission resource; a dynamic scheduler that performs said dynamic scheduling. - View Dependent Claims (14, 15, 16)
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17. A mobile device comprising:
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a wireless access radio; a radio manager for controlling a reception capability of the wireless access radio during a plurality of discontinuous reception (DRX) awake periods and a plurality of sleep periods, the awake periods alternating in time with the sleep periods, such that the reception capability is always on during each of the awake periods, and the reception 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, wherein the semi-persistent uplink transmission resource is scheduled using semi-persistent scheduling; for each additional uplink packet or sub-packet for the mobile device; transmit a request for an additional uplink transmission resource to transmit the additional uplink packet or sub-packet; during one of the awake periods, receive signaling, from the network, that defines an additional uplink transmission resource to transmit the additional uplink packet or sub-packet, wherein the additional uplink transmission resource is scheduled using dynamic scheduling; during one of the awake periods, transmit the additional uplink packet or sub-packet on the additional uplink transmission resource; determine that the semi-persistent uplink transmission resource has been de-allocated. - View Dependent Claims (18, 19, 20)
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Specification