Granted Patent B2

US 8,849,291 · App. 13/360,108 · Granted Sep 30, 2014

Abstract

Claims (48)

1. A method of wireless communications between a wireless communications network and a wireless user equipment, comprising:

identifying, by the wireless communications network, a first node of the wireless communications network as a serving node for the wireless user equipment, the serving node for transmissions in a first direction between the wireless user equipment and the wireless communications network, the serving node comprising a serving base station;

identifying, by the wireless communications network, a second node of the wireless communications network as a supplemental node;

using, by the wireless communications network, the supplemental node for transmissions in a second direction between the wireless communications network and the user equipment;

wherein the serving node is configured to provide scheduling parameters to the supplemental node;

wherein identifying the second node includes identifying the second node of the wireless communications network that receives a stronger uplink signal from the wireless user equipment than the uplink signal received at the serving node from the user equipment, as the supplemental node;

wherein transmissions in the first direction are downlink transmissions from the serving node to the user equipment;

wherein transmissions in the second direction are uplink transmissions from the user equipment to the supplemental node;

wherein identifying the second node as the supplemental node further includes identifying a plurality of additional nodes of the wireless communications network as a plurality of uplink supplemental nodes forming an uplink supplemental node set; and

wherein using the supplemental node for transmissions in the second direction between the wireless communications network and the wireless user equipment includes receiving uplink transmissions from the wireless user equipment by the plurality of the uplink supplemental nodes in the uplink supplemental node set.

2. The method of claim 1 , wherein the first node and the second node are wireless communications network nodes selected from a group of wireless communications network nodes consisting of E-UTRAN Node B nodes, relay nodes, and other low power transmission nodes.

3. The method of claim 1 , further comprising adapting parameters of a wireless communications link for the transmissions in the second direction by the serving node.

4. The method of claim 3 , comprising determining retransmission statistics for transmissions in the second direction and adapting parameters of the wireless communications link for the transmissions in the second direction based on the determined retransmission statistics.

5. An apparatus for wireless communications with user equipment, the apparatus comprising:

a first access node adapted for transmissions in a first direction and a second direction between the user equipment and a wireless communications network, the first access node adapted to select a second access node for transmissions in one of the first direction or the second direction based, at least in part, on a channel signal strength between the second access node and the user equipment, wherein the first access node comprises a serving base station, and

wherein the first access node is adapted to send scheduling parameters from the first access node to the second access node;

wherein transmissions in the first direction are downlink transmissions from the first access node to the user equipment; the second access node is a supplemental node, and transmissions in the second direction are uplink transmissions from the user equipment to the supplemental node;

wherein the first access node is further adapted to select a plurality of nodes of the wireless communications network as a plurality of uplink supplemental nodes forming an uplink supplemental node set; and

wherein the plurality of the uplink supplemental nodes in the uplink supplemental node set are configured to receive uplink transmissions from the user equipment for transmissions in the second direction.

6. The apparatus of claim 5 , wherein the first access node is a wireless communications network node selected from a group of wireless communications network nodes consisting of E-UTRAN Node B nodes, relay nodes, and other low power transmission nodes.

7. The apparatus of claim 5 , wherein the first access node is configured to adapt parameters of a wireless communications link for the transmissions in the second direction.

8. The apparatus of claim 7 , wherein the first access node is adapted to determine retransmission statistics for transmissions in the second direction and to adapt parameters of the wireless communications link for the transmissions in the second direction on the determined retransmission statistics.

9. An apparatus for providing communications services to a wireless user equipment, comprising:

a processor configured to identify a first node of a wireless communications network as a serving node for the user equipment, the first node comprising a serving base station;

wherein the processor is further configured to identify a second node of the wireless communications network as a supplemental node, use the serving node for transmissions in a first direction between the user equipment and the wireless communications network, and use the supplemental node for transmissions in a second direction between the wireless communications network and the user equipment;

wherein the serving node is configured to provide scheduling parameters to the supplemental node;

wherein identifying the second node includes identifying the second node of the wireless communications network that receives a stronger uplink signal from the wireless user equipment than the uplink signal received at the serving node from the user equipment, as the supplemental node;

wherein transmissions in the first direction are downlink transmissions from the serving node to the user equipment;

wherein transmissions in the second direction are uplink transmissions from the user equipment to the supplemental node;

wherein identifying the second node as the supplemental node further includes identifying a plurality of additional nodes of the wireless communications network as a plurality of uplink supplemental nodes forming an uplink supplemental node set; and

wherein using the supplemental node for transmissions in the second direction between the wireless communications network and the wireless user equipment includes receiving uplink transmissions from the wireless user equipment by the plurality of the uplink supplemental nodes in the uplink supplemental node set.

10. The apparatus of claim 9 , wherein the first node and the second node of the wireless communications network are selected from a group of wireless communications network nodes consisting of E-UTRAN Node B nodes, relay nodes, and other low power transmission nodes.

11. A method of wireless communications between a wireless communications network and a user equipment, comprising:

selecting, by the wireless communications network, a first access node adapted for transmissions in a first direction and a second direction between the user equipment and the wireless communications network;

selecting, by the first access node, a second access node for transmissions in one of the first direction or the second direction based, at least in part, on a channel signal strength between the second access node and the user equipment;

wherein the first access node is adapted to send scheduling parameters from the first access node to the second access node;

wherein transmissions in the first direction are downlink transmissions; and transmissions in the second direction are uplink transmissions from the user equipment to the wireless communications network;

wherein selecting the second access node comprises selecting a plurality of nodes of the wireless communications network as a plurality of uplink supplemental nodes forming a uplink supplemental node set; and

wherein the plurality of the uplink supplemental nodes in the uplink supplemental node set are configured to transmit uplink transmissions from the user equipment for transmissions in the second direction.

12. The method of claim 11 , wherein the first access node is a wireless communications network node selected from a group of wireless communications network nodes consisting of E-UTRAN Node B nodes, relay nodes, and other low power transmission nodes.

13. The method of claim 11 , wherein the first access node is configured to adapt parameters of a wireless communications link for the transmissions in the second direction.

14. A user equipment for wireless communications with a communications network, comprising:

a transceiver configured to establish transmissions with a first access node in a first direction or a second direction, the first access node comprising a serving base station;

wherein the transceiver is configured to establish transmission with a second access node in one of the first or second directions based, at least in part, on a channel signal strength between the user equipment and the second access node;

wherein the first access node is adapted to send scheduling parameters from the first access node to the second access node;

wherein transmissions in the first direction are downlink transmissions to the user equipment from the first access node; and transmissions in the second direction are uplink transmissions to the second access node from the user equipment;

wherein the first access node is further adapted to select a plurality of nodes of the wireless communications network as a plurality of uplink supplemental nodes forming an uplink supplemental node set; and

wherein the transceiver is configured to transmit uplink transmissions to the plurality of the uplink supplemental nodes in the uplink supplemental node set.

Assignments (9)