Method and system for discontinuous reception operation for long term evolution advanced carrier aggregation

Patent metadata

Field	Value
Publication number	US-9655164-B2
Application number	US-81130110-A
Country	US
Kind code	B2
Filing date	Jun 15, 2010
Priority date	Jun 15, 2009
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A method for discontinuous reception operation for carrier aggregation comprising: receiving a first set of discontinuous reception parameters for a first carrier and a different set of discontinuous reception parameters for a second carrier; and configuring discontinuous reception parameters on the first carrier and second carrier.

First claim

What is claimed is:

1. A method for enabling or disabling a carrier for a user equipment in a wireless network, the method comprising:
receiving, by the user equipment a first radio resource configuration (RRC) message, the first RRC message assigning a plurality of carriers of an evolved Node B, the first RRC message indicating a primary carrier and a plurality of secondary carriers from the plurality of carriers, wherein the primary carrier is used for control signaling related to at least one of the secondary carriers, the first RRC message further indicating a subset of the plurality of carriers as designated carriers, the remaining carriers being non-designated carriers;
receiving, by the user equipment a second RRC message, the second RRC message including Discontinuous Reception (DRX) configuration information for a designated carrier and an indication that a non-designated carrier is associated to the designated carrier, wherein the non-designated carrier is enabled based on the DRX configuration information for the associated designated carrier;
receiving, by the user equipment, a carrier enable or disable command medium access control (MAC) control element over a downlink shared channel, the MAC control element comprising a plurality of bit fields, each of said plurality of bit fields corresponding with a carrier of the plurality of secondary carriers, and indicating whether the carrier should be enabled or disabled;
transmitting, by the user equipment, an acknowledgment of the carrier enable or disable command MAC control element;
stopping, at the user equipment, from transmitting uplink control information corresponding to the carriers that are disabled by the MAC control element; and
stopping, at the user equipment, monitoring a physical downlink control channel (PDCCH) associated with the carriers that are disabled by the MAC control element.

2. The method of claim 1 , wherein the MAC control element comprises at least one of:
a single bit for designating whether to enable or disable a carrier;
a carrier identifier field to identify a carrier;
an action time for when the carrier should be enabled or disabled; and
a subframe within the radio frame with a subframe number equal to an action time.

3. The method of claim 2 , wherein the acknowledgment comprises a carrier identifier corresponding with the carrier identifier field from the MAC control element.

4. The method of claim 1 , wherein the MAC control element comprises at least one of:
an action time for when the carrier should be enabled or disabled; and
a subframe within the radio frame with a subframe number equal to an action time.

5. The method of claim 4 , wherein the acknowledgment comprises a plurality of bit fields corresponding with the plurality of bit fields in the MAC control element.

6. A user equipment comprising:
a communications subsystem, and
a processor;
wherein the communication subsystem and the processor are configured to:
receive a first radio resource configuration (RRC) message, the first RRC message assigning a plurality of carriers of an evolved Node B, the first RRC message indicating a primary carrier and a plurality of secondary carriers from the plurality of carriers, wherein the primary carrier is used for control signaling related to at least one of the secondary carriers, the first RRC message further indicating a subset of the plurality of carriers as designated carriers, the remaining carriers being non-designated carriers;
receive a second RRC message, the second RRC message including Discontinuous Reception (DRX) configuration information for a designated carrier and an indication that a non-designated carrier is associated to the designated carrier, wherein the non-designated carrier is enabled based on the DRX configuration information for the associated designated carrier;
receive a carrier enable or disable command medium access control (MAC) control element over a downlink shared channel, the MAC control element comprising a plurality of bit fields, each of said plurality of bit fields corresponding with a carrier of the plurality of secondary carriers, and indicating whether the carrier should be enabled or disabled;
transmit an acknowledgment of the carrier enable or disable command MAC control element;
stop transmitting uplink control information corresponding to the carriers that are disabled by the MAC control element; and
stop monitoring a physical downlink control channel (PDCCH) associated with the carriers that are disabled by the MAC control element.

7. The method of claim 1 , wherein transmitting the acknowledgment comprises using a hybrid automatic repeat request (HARQ) feedback.

8. The method of claim 1 , wherein transmitting the acknowledgment comprises using a carrier enable or disable acknowledgment medium access control (MAC) control element (CE).

9. The method of claim 1 , wherein receiving the carrier enable or disable command MAC control element comprises using a logical channel ID (LCID) value.

10. A method for enabling or disabling a carrier for a user equipment in a wireless network including an evolved node B (eNB), the method comprising:
transmitting, by the eNB, a first radio resource configuration (RRC) message, the first RRC message assigning a plurality of carriers of the eNB, the first RRC message indicating a primary carrier and a plurality of secondary carriers from the plurality of carriers, wherein the primary carrier is used for control signaling related to at least one of the secondary carriers, the first RRC message further indicating a subset of the plurality of carriers as designated carriers, the remaining carriers being non-designated carriers;
transmitting, by the eNB, a second RRC message, the second RRC message including Discontinuous Reception (DRX) configuration information for a designated carrier and an indication that a non-designated carrier is associated to the designated carrier, wherein the non-designated carrier is enabled based on the DRX configuration information for the associated designated carrier;
transmitting, by the eNB, a carrier enable or disable command medium access control (MAC) control element over a downlink shared channel, the MAC control element comprising a plurality of bit fields, each of said plurality of bit fields corresponding with a carrier of the plurality of secondary carriers, and indicating whether the carrier should be enabled or disabled; and
receiving, by the eNB, an acknowledgment of the carrier enable or disable command MAC control element;
wherein transmission of uplink control information corresponding to the carriers disabled by the MAC control element is stopped; and
wherein monitoring of a physical downlink control channel (PDCCH) associated with the carrier disabled by the MAC control element is stopped.

11. The method of claim 10 , wherein the carrier enable or disable command MAC control element includes a logical channel ID (LCID) value.

12. The method of claim 10 , wherein receiving the acknowledgment comprises using a hybrid automatic repeat request (HARQ) feedback.

13. An apparatus for a wireless network, the apparatus comprising:
a communications subsystem, and
a processor;
wherein the communication subsystem and the processor are configured to:
transmit a first radio resource configuration (RRC) message, the first RRC message assigning a plurality of carriers of the apparatus, the first RRC message indicating a primary carrier and a plurality of secondary carriers from the plurality of carriers, wherein the primary carrier is used for control signaling related to at least one of the secondary carriers, the first RRC me

Assignees

• Fong Mo-Han
• Mcbeath Sean
• Cai Zhijun
• Earnshaw Andrew Mark
• Heo Youn Hyoung
• Yu Yi
• Golden Valley Holdings Ltd

Inventors

• Fong Mo-Han
• Mcbeath Sean
• Cai Zhijun
• Earnshaw Andrew Mark
• Heo Youn Hyoung
• Yu Yi

Classifications

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L5/0098

  Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands · CPC title

• H04L5/001 Primary

  the frequencies being arranged in component carriers · CPC title

• H04W76/048 Primary

  Electricity · mapped topic