Scheduling enhancement in wireless communication

Patent metadata

Field	Value
Publication number	US-2016183293-A1
Application number	US-201514592091-A
Country	US
Kind code	A1
Filing date	Jan 8, 2015
Priority date	Dec 22, 2014
Publication date	Jun 23, 2016
Grant date	—

Abstract

The subject matter described herein relates to scheduling enhancement in wireless communication. A scheduling grant including an indicator can be generated, for example, at the base station (BS). The indicator included in the scheduling grant identifies multiple carriers to be scheduled with the scheduling grant. Upon receiving the scheduling grant, a device, for example, UE can recognize the multiple carriers scheduled with the single scheduling grant, and can detect corresponding data transmission in the multiple carriers accordingly. Compared with scheduling each carrier with independent scheduling grant, the proposed solution saves control signaling overhead, and thereby alleviates the problems caused by control signaling capacity limitation, and increase peak data rate and system throughput.

First claim

I/We claim:

1 . A method of wireless communication, comprising:
generating a scheduling grant including a first indicator, the first indicator indicating multiple carriers to be scheduled with the scheduling grant; transmitting the scheduling grant to user equipment; and transmitting data to the user equipment on the multiple carriers.

2 . The method of claim 1 , wherein the first indicator includes a bitmap indicating the multiple scheduled carriers or an index indicating one of multiple scheduled carrier patterns, the indicated scheduled carrier pattern indicating a combination of multiple carriers to be scheduled with the scheduling grant.

3 . The method of claim 2 , further comprising:
transmitting the multiple scheduled carrier patterns to the user equipment via radio resource control signaling or system information.

4 . The method of claim 1 , wherein the generating a scheduling grant comprises:
including a second indicator into the scheduling grant, the second indicator indicating the number of component carriers to be scheduled with the scheduling grant.

5 . The method claim 1 , wherein the generating a scheduling grant comprises:
including into the scheduling grant at least one common scheduling parameter to be applied to the multiple carriers.

6 . The method of claim 5 , wherein the at least one common scheduling parameter includes at least one of: a modulation and coding scheme, and a physical resource block index.

7 . The method of claim 1 , wherein the transmitting the scheduling grant comprises:
transmitting the scheduling grant via a primary component carrier in a licensed band, and wherein the transmitting data to the user equipment on the multiple carriers comprises: transmitting data to the user equipment on the multiple carriers in an unlicensed band.

8 . A method of wireless communication, comprising:
receiving a scheduling grant including a first indicator; determining multiple carriers scheduled with the scheduling grant based on the first indicator; and detecting data transmission in the multiple carriers according to the scheduling grant.

9 . The method of claim 8 , wherein the first indicator includes a bitmap indicating the multiple scheduled carriers or an index indicating one of multiple scheduled carrier patterns, the indicated scheduled carrier pattern indicating a combination of multiple carriers to be scheduled with the scheduling grant.

10 . The method of claim 9 , further comprising:
receiving the multiple scheduled carrier patterns via radio resource control signaling or system information.

11 . The method of claim 8 , wherein the receiving a scheduling grant comprises:
receiving the scheduling grant including the first indicator and a second indicator, the second indicator indicating the number of component carriers to be scheduled with the scheduling grant, and wherein the determining multiple carriers scheduled with the scheduling grant based on the first indicator comprises: determining the multiple carriers scheduled with the scheduling grant based on the first indicator and the second indicator.

12 . The method of claim 8 , further comprising:
detecting, from the scheduling grant, at least one common scheduling parameter to be applied to the multiple carriers.

13 . The method of claim 12 , wherein the at least one common scheduling parameter includes at least one of: a modulation and coding scheme, and a physical resource block index.

14 . The method of claims 8 , wherein the receiving a scheduling grant comprises:
receiving the scheduling grant via a primary component carrier in a licensed band, and wherein the detecting data transmission in the multiple carriers comprises: detecting the data transmission in the multiple carriers in an unlicensed band.

15 . An apparatus for wireless communication, comprising:
a scheduling grant generator configured to generate a scheduling grant including a first indicator which indicates multiple carriers to be scheduled with the scheduling grant and at least one common one common scheduling parameter to be applied to the multiple carriers; a first transmitter configured to transmit the scheduling grant to user equipment; and a second transmitter configured to transmit data to the user equipment on the multiple carriers.

16 . The apparatus of claim 15 , wherein the first indicator includes a bitmap indicating the multiple scheduled carriers or an index indicating one of multiple scheduled carrier patterns, the indicated scheduled carrier pattern indicating a combination of multiple carriers to be scheduled with the scheduling grant.

17 . The apparatus of claim 15 , further comprising:
a third transmitter configured to transmit the multiple scheduled carrier patterns to the user equipment via radio resource control signaling or system information.

18 . The apparatus of claim 15 , wherein the scheduling grant generator is configured to generate the scheduling grant further including a second indicator, the second indicator indicating the number of component carriers to be scheduled with the scheduling grant.

19 . The apparatus of claim 15 , wherein the at least one common scheduling parameter includes at least one of: a modulation and coding scheme, and a physical resource block index.

20 . The apparatus of claim 15 , wherein
the first transmitter is configured to transmit the scheduling grant to user equipment via a primary component carrier in a licensed band, and the second transmitter is configured to transmit the data to the user equipment on the multiple carriers in an unlicensed band.

Assignees

• Microsoft Corp

Inventors

• Lei Haipeng
• Shu Kodo

Classifications

• H04W72/23 Primary

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04L1/1812

  Hybrid protocols; Hybrid automatic repeat request [HARQ] · CPC title

• H04W48/08

  Access restriction or access information delivery, e.g. discovery data delivery (signalling during connection H04W76/00) · CPC title

• H04W72/231 Primary

  the control data signalling from the layers above the physical layer, e.g. RRC or MAC-CE signalling · CPC title

• H04W72/14 Primary

  Electricity · mapped topic