Group carrier scheduling for unlicensed long term evolution network

Patent metadata

Field	Value
Publication number	US-2016007373-A1
Application number	US-201414575666-A
Country	US
Kind code	A1
Filing date	Dec 18, 2014
Priority date	Jul 1, 2014
Publication date	Jan 7, 2016
Grant date	—

Abstract

A user equipment device comprises physical layer circuitry configured to communicate radio frequency (RF) electrical signals directly with one or more separate wireless devices, including to receive an indication of multiple component carriers aggregated into a carrier set that includes at least one scheduling component carrier and at least one scheduled component carrier, and receive scheduling control information for the multiple component carriers of the carrier set using the scheduling component carrier in downlink control information according to a resource radio control signaling protocol.

First claim

What is claimed is:

1 . User equipment (UE) comprising physical layer circuitry configured to communicate radio frequency (RF) electrical signals directly with one or more separate wireless devices, including to:
receive an indication of multiple component carriers aggregated into a carrier set that includes at least one scheduling component carrier and at least one scheduled component carrier; and receive scheduling control information for the multiple component carriers of the carrier set using the scheduling component carrier in downlink control information (DCI) according to a resource radio control (RRC) signaling protocol.

2 . The UE of claim 1 , wherein the physical layer circuitry is configured to multiplex communication among the multiple component carriers of the carrier set according to the scheduling control information using a frequency band licensed to a long term evolution (LTE) network and at least one of a frequency band unlicensed to an LTE network (LTE-U) or a frequency band of a licensed assisted access (LAA) network.

3 . The UE of claim 1 , including processing circuitry configured to receive the scheduling control information from a carrier indicator field (CIF) of the DCI according to the RRC signaling protocol.

4 . The UE of claim 1 , wherein the scheduling control information includes configuration information for the at least one scheduling component carrier and the at least one scheduled component carrier of the carrier set.

5 . The UE of claim 1 , wherein the scheduling control information indicates that a first orthogonal frequency division multiplexing (OFDM) symbol of the at least one scheduled component carrier is included in a physical downlink shared channel (PDSCH), and wherein the first OFDM symbol is reserved in the scheduling component carrier for a physical downlink control channel (PDCCH).

6 . The UE of claim 5 , wherein the scheduling information indicates a start of a PDSCH at an OFDM symbol having symbol index zero in the downlink sub-frame of the scheduled component carrier.

7 . The UE of claim 1 , wherein the scheduling information indicates that a first OFDM symbol of a downlink sub-frame of the at least one scheduled component carrier is included in an enhanced physical downlink control channel (EPDCCH).

8 . The UE of claim 1 , wherein the at least one scheduled component carrier of the carrier set includes a plurality of scheduled component carriers in the carrier set, and wherein the scheduling control information includes a resource allocation that spans multiple scheduled component carriers of the carrier set.

9 . The UE of claim 1 , including processing circuitry configured to receive an indication that a plurality of PDSCHs are scheduled for a plurality of scheduled component carriers, wherein the scheduled plurality of PDSCHs have a same value of a hybrid automatic repeat request (H-ARQ) process number indicated in the DCI.

10 . The UE of claim 9 , wherein the scheduled PDSCHs have a same modulation and coding scheme (MCS) indicated in the DCI.

11 . The UE of claim 1 , wherein physical layer circuitry is configured to: communicate with at least one of a network node device or another UE using a frequency band licensed to a long term evolution (LTE) network; and to communicate with an access point device or a network station device using at least one of a frequency band unlicensed to an LTE network (LTE-U) or a frequency band of a licensed assisted access (LAA) network.

12 . The UE of claim 1 , including a plurality of antennas conductively coupled to the physical layer circuitry.

13 . A method of operating an RF transceiver device of an end-to-end communication network, the method comprising:
aggregating multiple component carriers into a carrier set for communication by the RF transceiver device including at least one scheduling component carrier and at least one scheduled component carrier; communicating scheduling control information for the multiple component carriers of the carrier set using the scheduling component carrier in downlink control information (DCI) according to a resource radio control (RRC) signaling protocol; and communicating information using the multiple component carriers of the carrier set according to the scheduling control information.

14 . The method of claim 13 , wherein communicating information using the multiple component carriers includes communicating using the scheduling component carrier via a frequency band licensed to a long term evolution (LTE) network and communicating using the at least one scheduled component carrier via one or both of a frequency band unlicensed to a long term evolution network (LTE-U) and a frequency band of a licensed assisted access (LAA) network.

15 . The method of claim 13 , wherein communicating scheduling control information includes communicating an indication of the at least one scheduled component carrier using a carrier indicator field (CIF) of the DCI.

16 . The method of claim 13 , including configuring the at least one scheduling component carrier and the at least one scheduled component carrier according to the scheduling control information received using the RRC signaling protocol.

17 . The method of claim 13 , including scheduling a first orthogonal frequency division multiplexing (OFDM) symbol of the at least one scheduled component carrier for a physical downlink shared channel (PDSCH), wherein the first OFDM symbol is reserved in the scheduling component carrier for a physical downlink control channel (PDCCH).

18 . The method of claim 17 , wherein scheduling a first OFDM symbol includes scheduling a start of a PDSCH at an OFDM symbol having symbol index zero in a downlink sub-frame of the scheduled component carrier.

19 . The method of claim 13 , including scheduling a first OFDM symbol of a downlink sub-frame of the at least one scheduled component carrier for an enhanced physical downlink control channel (EPDCCH).

20 . The method of claim 13 , wherein the at least one scheduled component carrier of the carrier set includes a plurality of scheduled component carriers in the carrier set, wherein communicating the scheduling control information includes indicating a resource allocation that spans multiple scheduled component carriers of the carrier set.

21 . The method of claim 13 , including scheduling, using the scheduling component carrier, a plurality of PDSCHs for a plurality of scheduled component carriers, wherein the scheduled plurality of PDSCHs of the plurality of scheduled component carriers include a same value of a hybrid automatic repeat request (H-ARQ) process number indicated in the downlink control information.

22 . The method of claim 13 , wherein communicating the scheduling control information for the multiple component carriers includes communicating the scheduling control information to user equipment (UE) using a cellular network node device.

23 . A computer readable storage medium including instructions that when executed by hardware processing circuitry of a wireless communication device cause the wireless communication device to:
aggregate multiple component carriers into a carrier set for communication by the RF transceiver device, including at least one scheduling component carrier and at least one scheduled component carrier; communicate scheduling control information for the multiple component carriers of the carrier set in downlink control information (DCI) accor

Assignees

• Intel Corp

Inventors

• Davydov Alexei Vladimirovich
• Sergeyev Vadim Sergeyevich
• Bashar Shafi
• Morozov Gregory Vladimirovich

Classifications

• H04L5/001 Primary

  the frequencies being arranged in component carriers · CPC title

• 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

• H04L5/0053

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

• H04L5/0032

  Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation · CPC title