Group carrier scheduling for unlicensed long term evolution network

Patent metadata

Field	Value
Publication number	US-10085280-B2
Application number	US-201715463400-A
Country	US
Kind code	B2
Filing date	Mar 20, 2017
Priority date	Jul 1, 2014
Publication date	Sep 25, 2018
Grant date	Sep 25, 2018

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. An apparatus of a user equipment (UE) configured to perform frequency carrier aggregation using a frequency band licensed to a first communication network and at least one of a frequency band unlicensed to the first communication network or a frequency band of a licensed assisted access (LAA) network, the apparatus comprising:
memory; and processing circuitry configured to:
decode a carrier indicator field (CIF) of a scheduling component carrier, wherein a CIF value identifies multiple component carriers for simultaneous scheduling, including component carriers of the at least one of the frequency band unlicensed to the first communication network or the frequency band of the LAA network, wherein all component carriers having the same CIF value are identified for the simultaneous scheduling; and
decode 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 apparatus of claim 1 , wherein the at least one scheduling component carrier includes scheduling control information for component carriers for the frequency band licensed to the first communication network and a frequency band of a WiFi network unlicensed to the first communication network.

3. The apparatus of claim 1 , wherein component carriers with the same value in the CIF identify the set of component carriers in the carrier set for simultaneous scheduling of physical downlink shared channels (PDSCHs).

4. The apparatus 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 apparatus 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 has a symbol index zero in the downlink sub-frame of the scheduled component carrier.

6. The apparatus 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 sp, multiple scheduled component carriers of the carrier set.

7. The apparatus of claim 1 , wherein the processing circuitry is further 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 modulation and coding scheme (MCS) indicated in the DCI.

8. The apparatus of claim 1 , including physical layer circuitry configured to multiplex communication among multiple component carriers using the frequency band licensed to a first communication network and the at least one of the frequency hand unlicensed to the first communication network or the frequency band of the LAA network.

9. The apparatus of claim 1 , wherein the processing circuitry is configured to store the scheduling control information in the memory.

10. A method of operating an RE transceiver device of an end-to-end communication network, the method comprising:
decoding a carrier indicator field (CIF) of a scheduling component carrier, wherein a CIF value identifies multiple component carriers for simultaneous scheduling, including component carriers of one or both of a frequency band unlicensed to the first communication network and a frequency band of a licensed assisted access (LAA) network;
aggregating all component carriers having the same CIF value into a carrier set for communication by the RE transceiver device;
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 including communicating using the scheduling component carrier via a frequency band licensed to the end-to-end communication network and communicating using at least one scheduled component carrier via one or both of the frequency hand unlicensed to the end-to-end communication network and the frequency band of the LAA network.

11. The method of claim 10 wherein the at least one scheduling component carrier includes scheduling control information for component carriers for both of the frequency band licensed to the first communication network and a frequency band of a WiFi network unlicensed to the first communication network.

12. The method of claim 10 , wherein component carriers with the same value in the CIF identify the set of component carriers in the carrier set for simultaneous PDSCH scheduling.

13. The method of claim 10 , 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.

14. The method of claim 10 , 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), and wherein the first OFDM symbol has a symbol index zero in the downlink sub-frame of the scheduled component carrier.

15. The method of claim 10 , 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).

16. The method of claim 10 , 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.

17. A non-transitory computer readable storage medium including instructions that when executed by hardware processing circuitry of a wireless communication device cause the wireless communication device to:
decode a carrier indicator field (CIF) of a scheduling component carrier, wherein a CIF value identifies multiple component carriers for simultaneous scheduling, including component carriers of one or both of a frequency band unlicensed to the first communication network and a frequency band of a licensed assisted access (LAA) network;
aggregate all component carriers having the same CIF value into a carrier set for communication by the RF transceiver device;
communicate scheduling control information for the multiple component carriers of he carrier set in downlink control information (DCI) according to a resource radio control (RRC) signaling protocol; and
communicate information using the multiple component carriers of the carrier set according to the scheduling control information including communicating using the scheduling component carrier via a frequency hand licensed to the end-to-end communication network and communicating using at least one scheduled component carrier via one or both of the frequency band unlicensed to the end-to-end communication network and the frequency hand of the LAA network.

18. The non-transitory computer readable storage medium of claim 17 , including instruction

Assignees

• Intel Corp

Inventors

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

Classifications

• H04W72/23 Primary

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

• H04L5/001 Primary

  the frequencies being arranged in component carriers · CPC title

• H04L27/0006

  Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio (for spectrum sharing between different networks H04W16/14) · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04L1/1822

  involving configuration of automatic repeat request [ARQ] with parallel processes · CPC title