Downlink resource scheduling

• US 10,122,565 B2
• Filed: 09/27/2016
• Issued: 11/06/2018
• Est. Priority Date: 11/04/2011
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: He, Hong, Fwu, Jong-Kae
• Primary Examiner(s): Banks Harold, Marsha D.
• Assistant Examiner(s): Patel, Dharmesh
• Application Number:
  US15/277,956
• Publication Number:
  US 20170086173A1
• Time in Patent Office: 770 Days
• CPC Class Codes: 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
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04J 3/12 Arrangements providing for calling or supervisory signals
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0077 Cooperative coding
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 27/2646 using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
• CPC Class Codes: H04L 27/2662 Symbol synchronisation
• CPC Class Codes: H04L 27/2675 Pilot or known symbols
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0078 Timing of allocation
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 52/0206 in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/146 : Uplink power control
• CPC Class Codes: H04W 52/242 : taking into account path loss
• CPC Class Codes: H04W 52/244 : Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
• CPC Class Codes: H04W 52/34 : TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
• CPC Class Codes: H04W 56/0015 : one node acting as a reference for the others
• CPC Class Codes: H04W 68/02 : Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 72/02 : Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/12 : Wireless traffic scheduling
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 76/11 : Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/40 : for selective distribution or broadcast
• CPC Class Codes: H04W 84/14 : WLL [Wireless Local Loop]; RLL [Radio Local Loop]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

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

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.

2. 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.

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

4. 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.

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

6. 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.

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

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.

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

10. The apparatus of claim 8, further comprising:

a transmitter module configured to transmit the DCI in the PDCCH and the data in the PDSCH.

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

12. 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.

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

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.

15. 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.

16. 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.