# US 10,122,565 B2 · Downlink resource scheduling

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- Number: US 10,122,565 B2
- Document ID: US10122565B2
- Status: Granted
- Kind: B2
- Application number: 15/277,956
- Filed: 2016-09-27
- Published: 2017-03-23
- Granted: 2018-11-06
- Earliest claimed: 2011-11-04
- Assignees: Intel Corporation
- Applicants: Intel Corporation
- Inventors: Hong He; Jong-Kae Fwu
- Web page: https://patentgrep.com/patent/US10122565B2

## CPC

- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- H04B 7/024: Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
- H04B 7/0456: Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
- H04B 7/0626: {Channel coefficients, e.g. channel state information [CSI]}
- H04J 3/12: Arrangements providing for calling or supervisory signals
- H04J 11/00: Orthogonal multiplex systems, {e.g. using WALSH codes}(H04J13/00 takes precedence)
- H04L 1/0026: {Transmission of channel quality indication}
- H04L 1/0077: {Cooperative coding}
- H04L 1/1812: Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L 5/0035: {Resource allocation in a cooperative multipoint environment}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 5/0055: {Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861)}
- H04L 5/0078: {Timing of allocation}
- H04L 27/2646: {using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length}
- H04L 27/2662: {Symbol synchronisation}
- H04L 27/2675: {Pilot or known symbols}
- H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
- H04W 4/70: Services for machine-to-machine communication [M2M] or machine type communication [MTC]
- H04W 24/02: Arrangements for optimising operational condition
- H04W 52/0206: {in access points, e.g. base stations}
- H04W 52/146: {Uplink power control}
- H04W 52/242: {taking into account path loss}
- H04W 56/0015: {one node acting as a reference for the others}
- H04W 68/02: Arrangements for increasing efficiency of notification or paging channel
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 72/0446: Resources in time domain, e.g. slots or frames
- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal
- H04W 72/542: using measured or perceived quality
- H04W 76/11: Allocation or use of connection identifiers
- H04W 76/40: for selective distribution or broadcast
- H04W 52/244: {Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]}
- H04W 52/34: TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W 72/12: Wireless traffic scheduling
- H04W 84/14: WLL [Wireless Local Loop]; RLL [Radio Local Loop]
- H04W 88/02: Terminal devices
- H04W 88/08: Access point devices
- Y02D 30/70: in wireless communication networks
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04B: TRANSMISSION
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for downlink resource scheduling in wireless networks. In some embodiments, the scheduling may include multi-subframe cross carrier scheduling utilizing downlink control information. Other embodiments may be described and/or claimed.

## Claims

### Claim 1

An apparatus comprising:
scheduling circuitry to:
receive, from an eNB, downlink control information (DCI) in a first subframe of a primary serving cell (Pcell) of the eNB, the DCI to include a carrier indication field (CIF) value;
access mapping information, based on the CIF value and a carrier aggregation level; and
determine, based on the mapping information, that the DCI pertains to a second subframe of a secondary serving cell (Scell), wherein the second subframe occurs later in a frame sequence than the first subframe; and
decoder circuitry coupled with the scheduling circuitry to decode a downlink resource of a physical downlink shared channel (PDSCH) transmission in the second subframe of the Scell based on said determination that the DCI pertains to the second subframe,
wherein:
the mapping information includes a subframe pairing index that corresponds to a predetermined subframe pairing of subframes 0 and 3 or of subframes 1 and 4; and
the scheduling circuitry is to determine that the DCI pertains to the second subframe based on the subframe pairing index.

### Claim 2 (depends on 1)

The apparatus of claim 1, wherein the subframe pairing index is a first subframe pairing index and the mapping information further includes a second subframe pairing index that corresponds to the predetermined subframe pairing and the scheduling circuitry is to further determine that the DCI further pertains to a first subframe of the Scell, the first subframe of the Scell occurring at a same time as the first subframe of the Pcell in the frame sequence.

### Claim 3 (depends on 1)

The apparatus of claim 1, wherein the predetermined subframe pairing is a pairing between two subframes in each half-radio frame.

### Claim 4 (depends on 1)

The apparatus of claim 1, wherein the mapping information is stored in a multi-subframe cross-carrier (MSCC) table that provides mapping information for individual combinations of CIF values and carrier aggregation levels.

### Claim 5 (depends on 1)

The apparatus of claim 1, wherein the Pcell and the Scell include respective component carriers having different time-division duplexing (TDD) configurations.

### Claim 6 (depends on 1)

The apparatus of claim 1, wherein a plurality of component carriers are aggregated for communication and the scheduling circuitry is further to:
determine that the PDSCH transmission is in the second subframe of the secondary serving cell based further on a number of the plurality of component carriers.

### Claim 7 (depends on 1)

The apparatus of claim 1, wherein the eNB is a first eNB and the Scell is provided by a second eNB.

### Claim 8

An apparatus comprising:
scheduling circuitry to:
schedule downlink control information (DCI) in a physical downlink control channel (PDCCH) of a first subframe of a first component carrier of a plurality of component carriers aggregated for communication with a user equipment;
schedule data for the user equipment in a physical downlink shared channel (PDSCH) of a second subframe of a second component carrier of the plurality of component carriers, wherein the DCI is configured to identify the second subframe of the second component carrier and the second subframe occurs later in a frame sequence than the first subframe; and
access mapping information based on a number of the plurality of component carriers and the second subframe of the second component carrier to identify a CIF value that may be used, along with the number of the plurality of component carriers, to provide an indication that the DCI pertains to the second subframe of the second component carrier; and
encoder circuitry to encode the DCI with the CIF value in the PDCCH and the data in the PDSCH,
wherein:
the mapping information includes a subframe pairing index that corresponds to a predetermined subframe pairing of subframes 0 and 3 or of subframes 1 and 4; and
the scheduling circuitry is to identify the CIF value based on the subframe pairing index.

### Claim 9 (depends on 8)

The apparatus of claim 8, wherein the predetermined subframe pairing is a pairing between two subframes in each half-radio frame.

### Claim 10 (depends on 8)

The apparatus of claim 8, further comprising:
a transmitter module configured to transmit the DCI in the PDCCH and the data in the PDSCH.

### Claim 11 (depends on 8)

The apparatus of claim 8, wherein the CIF value is encoded with 3-bits.

### Claim 12 (depends on 8)

The apparatus of claim 8, wherein the first component carrier is associated with a primary serving cell and the second component carrier is associated with a secondary serving cell.

### Claim 13 (depends on 8)

The apparatus of claim 8, further comprising an enhanced node eNB (eNB).

### Claim 14

One or more non-transitory, computer-readable media having instructions that, when executed, cause an apparatus to:
access downlink control information (DCI) received from an eNB in a first subframe of a primary serving cell (Pcell), the DCI to include a carrier indication field (CIF) value;
access mapping information, based on the CIF value and a carrier aggregation level;
determine, based on the mapping information, that the DCI pertains to a second subframe of a secondary serving cell (Scell), wherein the second subframe occurs later in a frame sequence than the first subframe; and
decode a downlink resource of a physical downlink shared channel (PDSCH) transmission in the second subframe of the Scell based on said determination that the DCI pertains to the second subframe
wherein:
the mapping information includes a subframe pairing index that corresponds to a predetermined subframe pairing of subframes 0 and 3 or of subframes 1 and 4; and
the apparatus is to determine that the DCI pertains to the second subframe based on the subframe pairing index.

### Claim 15 (depends on 14)

The one or more non-transitory, computer-readable media of claim 14, wherein the subframe pairing index is a first subframe pairing index and the mapping information further includes a second subframe pairing index that corresponds to the predetermined subframe pairing and the scheduling circuitry is to further determine that the DCI further pertains to a first subframe of the Scell, the first subframe of the Scell occurring at a same time as the first subframe of the Pcell in the frame sequence.

### Claim 16 (depends on 14)

The one or more non-transitory, computer-readable media of claim 14, wherein the predetermined subframe pairing is a pairing between two subframes in each half-radio frame.