System and method for semi-persistent and dynamic scheduling and discontinuous reception control
First Claim
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1. A method in a wireless network, the method comprising:
- a) transmitting, by the network, downlink packets to a mobile device using a periodic semi-persistent downlink transmission resource that is aligned with discontinuous reception (DRX) awake periods defined for the mobile device by the network during establishment of DRX mode, wherein the semi-persistent downlink transmission resource is scheduled using semi-persistent scheduling;
b) transmitting, by the network, an additional downlink packet or sub-packet to the mobile device, wherein transmitting the additional downlink packet or sub-packet comprises;
i) allocating, by the network, an additional downlink transmission resource to transmit the additional packet or sub-packet, the additional resource being allocated to occur within one of the awake periods defined for the mobile device, wherein the additional transmission resource is scheduled using dynamic scheduling;
ii) during one of the awake periods defined for the mobile device, transmitting, by the network, signaling that defines the additional downlink transmission resource to transmit the additional packet or sub-packet;
iii) during one of the awake periods defined for the mobile device, transmitting the additional downlink packet using the additional downlink resource;
c) de-allocating the semi-persistent downlink 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.
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Citations
23 Claims
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1. A method in a wireless network, the method comprising:
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a) transmitting, by the network, downlink packets to a mobile device using a periodic semi-persistent downlink transmission resource that is aligned with discontinuous reception (DRX) awake periods defined for the mobile device by the network during establishment of DRX mode, wherein the semi-persistent downlink transmission resource is scheduled using semi-persistent scheduling; b) transmitting, by the network, an additional downlink packet or sub-packet to the mobile device, wherein transmitting the additional downlink packet or sub-packet comprises; i) allocating, by the network, an additional downlink transmission resource to transmit the additional packet or sub-packet, the additional resource being allocated to occur within one of the awake periods defined for the mobile device, wherein the additional transmission resource is scheduled using dynamic scheduling; ii) during one of the awake periods defined for the mobile device, transmitting, by the network, signaling that defines the additional downlink transmission resource to transmit the additional packet or sub-packet; iii) during one of the awake periods defined for the mobile device, transmitting the additional downlink packet using the additional downlink resource; c) de-allocating the semi-persistent downlink transmission resource. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 22, 23)
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9. 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, the awake periods being defined for the mobile device by the network during establishment of DRX mode; receiving at the mobile device downlink packets on a periodic semi-persistent downlink transmission resource that is aligned with the plurality of awake periods defined for the mobile device, wherein the semi-persistent downlink transmission resource is scheduled using semi-persistent scheduling; for each additional downlink packet or sub-packet for the mobile device; i) during one of the awake periods, receiving signaling from the network that defines an additional downlink transmission resource to transmit the additional downlink packet or sub-packet, wherein the additional transmission resource is scheduled using dynamic scheduling; ii) during one of the awake periods, receiving the additional downlink packet or sub-packet on the additional downlink resource; determining that the semi-persistent downlink transmission resource has been de-allocated. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A wireless network comprising:
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a semi-persistent scheduler for allocating a periodic semi-persistent downlink resource that is aligned with discontinuous reception (DRX) awake periods defined for a mobile device by the network for providing DRX transmissions to the mobile device, wherein the semi-persistent downlink transmission resource is scheduled using semi-persistent scheduling; a transmitter configured to; a) transmit downlink packets to the mobile device using the semi-persistent downlink transmission resource allocated by the semi-persistent scheduler; b) for each additional downlink packet or sub-packet for the mobile device; i) during one of the awake periods defined for the mobile device, transmit signaling that defines a respective additional downlink transmission resource to transmit the additional packet or sub-packet; ii) during one of the awake periods defined for the mobile device, transmit the additional downlink packet using the respective additional downlink resource; a dynamic scheduler for dynamically allocating the respective additional downlink transmission resource to transmit each additional packet or sub-packet, the additional resource being allocated to occur within one of the awake periods defined for the mobile device, wherein the additional transmission resources is scheduled using dynamic scheduling; the wireless network further configured to de-allocate the semi-persistent downlink transmission resource.
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21. 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 defined for the mobile device by the network during establishment of DRX mode, 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; receive downlink packets on a periodic semi-persistent downlink transmission resource that is aligned with the plurality of awake periods defined for the mobile device, wherein the semi-persistent downlink transmission resource is scheduled using semi-persistent scheduling; for each additional downlink packet or sub-packet for the mobile device; i) during one of the awake periods, receive signaling, from the network, that defines an additional downlink transmission resource to transmit the additional downlink packet or sub-packet, wherein the additional transmission resource is scheduled using dynamic scheduling; ii) during one of the awake periods, receive the additional downlink packet or sub-packet on the additional downlink resource; determine that the semi-persistent downlink transmission resource has been de-allocated.
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Specification