Downlink resource scheduling

• US 9,497,748 B2
• Filed: 03/28/2012
• Issued: 11/15/2016
• 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): Hsu, Alpus H
• Assistant Examiner(s): Patel, Dharmesh
• Application Number:
  US13/995,468
• Publication Number:
  US 20130279462A1
• Time in Patent Office: 1,693 Days
• Field of Search: 370/328, 370/329
• US Class Current: 1/1
• 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 a base station, downlink control information (DCI) in a first subframe of a primary serving cell (Pcell) of the base station, the DCI to include a carrier indication field (CIF) value and an indicator to indicate a downlink resource of a physical downlink shared channel (PDSCH) transmission that is to include data directed to the apparatus; and

determine, based on a predetermined subframe pairing and the CIF value, that the PDSCH transmission is in a second subframe of a secondary serving cell (Scell), wherein the second subframe is different from the first subframe; and

decoder circuitry to decode the downlink resource of the PDSCH transmission based on the indicator and said determination that the PDSCH transmission is in the second subframe of the Scell,

wherein the scheduling circuitry is further to;

access mapping information, stored in a multi-subframe cross-carrier (MSCC) table that provides mapping information for individual combinations of CIF values and carrier aggregation levels, based on the CIF value and a carrier aggregation level; and

determine, based on the mapping information, the indicator applies to a first paired subframe of the predetermined subframe pairing, a second paired subframe of the predetermined subframe pairing, or to both the first and second paired subframe of the predetermined subframe pairing.

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

3. The apparatus of claim 2, wherein the pairing is of subframe 0 and 3 or of subframe 1 and 4.

4. The apparatus of claim 1, wherein the scheduling circuitry is to determine that the PDSCH transmission is in the second subframe of the secondary serving cell based further on a predetermined subframe pairing of the first subframe and the second subframe.

5. The apparatus of claim 1, wherein the primary cell and the secondary cell 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 between the apparatus and the base station 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 primary serving cell utilizes a first common carrier and the secondary serving cell utilizes a second common carrier.

8. The apparatus of claim 1, wherein the downlink resource is a physical resource block.

9. The apparatus of claim 1, wherein the scheduling circuitry is further configured to

determine that the PDSCH transmission is in the second subframe based on the mapping information;

and

determine, based on the mapping information, that another PDSCH transmission of a third subframe of the secondary serving cell is also to include data directed to the apparatus.

10. The apparatus of claim 1, comprising a user equipment.

11. An apparatus comprising:

scheduling circuitry to;

receive, from a base station, downlink control information (DCI) in a first subframe of a primary serving cell (Pcell) of the base station, the DCI to include a carrier indication field (CIF) value and an indicator to indicate a downlink resource of a physical downlink shared channel (PDSCH) transmission that is to include data directed to the apparatus; and

determine, based on a predetermined subframe pairing and the CIF value, that the PDSCH transmission is in a second subframe of a secondary serving cell (Scell), wherein the second subframe is different from the first subframe; and

decoder circuitry to decode the downlink resource of the PDSCH transmission based on the indicator and said determination that the PDSCH transmission is in the second subframe of the Scell,

wherein the CIF value is a 3-bit value having eight states;

the carrier aggregation level is two, three, four, or five;

the Scell is a first Scell; and

the mapping information is stored in a multi-subframe cross-carrier (MSCC) table and identifies;

the primary serving cell if the CIF value is a first state and the CA level is two, three, four or five;

the first paired subframe of the first Scell if the CIF value is a second state and the CA level is two, three, four, or five;

the second paired subframe of the first Scell if the CIF value is a third state and the CA level is two, three, four, or five;

the first and second paired subframes of the first Scell if the CIF value is a fourth state and the CA level is two or three;

the first paired subframe of a second Scell if the CIF value is the fourth state and the CA level is four or five;

the first paired subframe of the second Scell if the CIF value is a fifth state and the CA level is three;

the second paired subframe of the second Scell if the CIF value is the fifth state and the CA level is four or five;

the second paired subframe of the second Scell if the CIF value is a sixth state and the CA level is three;

the first paired subframe of a third Scell if the CIF value is the sixth state and the CA level is four or five;

the first and second paired subframes of the second Scell if the CIF value is a seventh state and the CA level is three;

the second paired subframe of the third Scell if the CIF value is the seventh state and the CA level is four or five; and

the first paired subframe of a fourth Scell if the CIF value is an eighth state and the CA level is five.

12. An apparatus comprising:

scheduling circuitry to;

receive, from a base station, downlink control information (DCI) in a first subframe of a primary serving cell (Pcell) of the base station, the DCI to include a carrier indication field (CIF) value and an indicator to indicate a downlink resource of a physical downlink shared channel (PDSCH) transmission that is to include data directed to the apparatus; and

determine, based on a predetermined subframe pairing and the CIF value, that the PDSCH transmission is in a second subframe of a secondary serving cell (Scell), wherein the second subframe is different from the first subframe; and

decoder circuitry to decode the downlink resource of the PDSCH transmission based on the indicator and said determination that the PDSCH transmission is in the second subframe of the Scell,

wherein the CIF value is a 3-bit value having eight states;

the carrier aggregation level is two, three, four, or five;

the Scell is a first Scell; and

the mapping information is stored in a multi-subframe cross-carrier (MSCC) table and identifies;

the primary serving cell if the CIF value is a first state and the CA level is two, three, four or five;

the first paired subframe of the first Scell if the CIF value is a second state and the CA level is two, three, four, or five;

the second paired subframe of the first Scell if the CIF value is a third state and the CA level is two, three, four, or five;

the first and second paired subframes of the first Scell if the CIF value is a fourth state and the CA level is two, three, four, or five;

the first paired subframe of a second Scell if the CIF value is a fifth state and the CA level is three, four, or five;

the second paired subframe of the second Scell if the CIF value is a sixth state and the CA level is three, four, or five;

the first and second paired subframes of the second Scell if the CIF value is the seventh state and the CA level is three;

the first paired subframe of a third Scell if the CIF value is the seventh state and the CA level is four or five;

the second paired subframe of the third Scell if the CIF value is an eighth state and the CA level is four; and

the first paired subframe of the fourth Scell if the CIF value is the eighth state and the CA level is five.

13. An apparatus comprising:

scheduling circuitry to;

receive, from a base station, downlink control information (DCI) in a first subframe of a primary serving cell (Pcell) of the base station, the DCI to include a carrier indication field (CIF) value and an indicator to indicate a downlink resource of a physical downlink shared channel (PDSCH) transmission that is to include data directed to the apparatus; and

determine, based on a predetermined subframe pairing and the CIF value, that the PDSCH transmission is in a second subframe of a secondary serving cell (Scell), wherein the second subframe is different from the first subframe; and

decoder circuitry to decode the downlink resource of the PDSCH transmission based on the indicator and said determination that the PDSCH transmission is in the second subframe of the Scell, wherein the CIF value is a 3-bit value having eight states;

the carrier aggregation level is two, three, four, or five;

the Scell is a first Scell; and

the mapping information is stored in a multi-subframe cross-carrier (MSCC) table and identifies;

the primary serving cell if the CIF value is a first state and the CA level is two, three, four or five;

the first paired subframe of the first Scell if the CIF value is a second state and the CA level is two, three, four, or five;

the second paired subframe of the first Scell if the CIF value is a third state and the CA level is two, three, four, or five;

the first and second paired subframes of the first Scell if the CIF value is a fourth state and the CA level is two, three, four, or five;

the first paired subframe of a second Scell if the CIF value is a fifth state and the CA level is three, four, or five;

the second paired subframe of the second Scell if the CIF value is a sixth state and the CA level is three, four, or five;

the first and second paired subframes of the second Scell if the CIF value is the seventh state and the CA level is three;

the first and second paired subframes of the second Scell if the CIF value is the seventh state and the CA level is four;

the first paired subframe of a third Scell if the CIF value is the seventh state and the CA level is five;

the first paired subframe of the third Scell if the CIF value is an eighth state and the CA level is four; and

the first paired subframe of the fourth Scell if the CIF value is the eighth state and the CA level is five.

14. One or more non-transitory, computer-readable media having instructions stored thereon that, if executed by one or more processors, cause a user equipment to:

decode downlink control information (DCI) received from a base station in a first subframe of a primary serving cell (Pcell) of the base station, the DCI to include a carrier indication field (CIF) value and an indicator to indicate a downlink resource of a physical downlink shared channel (PDSCH) transmission that is to include data directed to the user equipment;

access mapping information, stored in a multi-subframe cross carrier scheduling (MSCC) table that provides mapping information for individual combinations of CIF values and carrier aggregation levels, based on the CIF value and a carrier aggregation level;

determine, based on the mapping information, the indicator applies to a first paired subframe of the predetermined subframe pairing, a second paired subframe of the predetermined subframe pairing, or to both the first and second paired subframe of the predetermined subframe pairing;

identify, based on application of the indicator, that the downlink resource of the PDSCH is in a second subframe of a secondary serving cell (Scell), wherein the second subframe occurs earlier in a frame sequence than the first subframe; and

decode the downlink resource to receive data directed to the user equipment.

15. The one or more non-transitory, computer-readable media of claim 14, wherein the instructions when executed further cause the user equipment to:

identify the downlink resource based on a predetermined subframe pairing that pairs two subframes in each half-radio frame.

16. The one or more non-transitory, computer-readable media of claim 15, wherein predetermined subframe pairing pairs subframes 0 and 3 or subframes 1 and 4.

17. The one or more non-transitory, computer-readable media of claim 14, wherein the CIF value is a 3-bit value.