Scheduling and hybrid automatic repeat request (HARQ) timing indication for an uplink-downlink (UL-DL) reconfiguration

• US 9,014,064 B2
• Filed: 01/15/2013
• Issued: 04/21/2015
• Est. Priority Date: 05/11/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: He, Hong, Fwu, Jong-Kae, Chatterjee, Debdeep
• Primary Examiner(s): ANWAR, MOHAMMAD S
• Application Number:
  US13/741,776
• Publication Number:
  US 20130301490A1
• Time in Patent Office: 826 Days
• Field of Search: 370/280, 370/294, 370/297
• US Class Current: 370/280
• CPC Class Codes: H04B 1/56 with provision for simultaneous communication in two directions
• CPC Class Codes: H04B 15/00 Suppression or limitation of noise or interference by means associated with receiver H04B1/10
• 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 7/0417 Feedback systems
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0473 taking constraints in layer or codeword to antenna mapping into account
• CPC Class Codes: H04B 7/0486 taking channel rank into account
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/063 Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
• CPC Class Codes: H04B 7/0632 Channel quality parameters, e.g. channel quality indicator [CQI]
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04B 7/0647 Variable feedback rate
• CPC Class Codes: H04B 7/065 Variable contents, e.g. long-term or short-short
• CPC Class Codes: H04B 7/26 at least one of which is mobile
• CPC Class Codes: H04J 3/00 Time-division multiplex systems H04J14/00 takes precedence; relay systems H04B7/14; selecting techniques H04Q
• CPC Class Codes: H04J 3/1694 Allocation of channels in TDM/TDMA networks, e.g. distributed multiplexers Passive Optical Networks H04Q11/0062
• CPC Class Codes: H04J 3/26 in which the information and the address are simultaneously transmitted
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1803 Stop-and-wait protocols
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 27/2627 : Modulators
• CPC Class Codes: H04L 5/0007 : the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/001 : the frequencies being arranged in component carriers
• 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 5/0073 : Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0096 : Indication of changes in allocation
• CPC Class Codes: H04L 5/14 : Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 : using time-sharing
• CPC Class Codes: H04L 65/00 : Network arrangements, protocols or services for supporting real-time applications in data packet communication real-time or near real-time messaging, e.g. instant messaging [IM] H04L51/04; selective video distribution H04N21/00
• CPC Class Codes: H04L 69/22 : Parsing or analysis of headers
• CPC Class Codes: H04L 69/324 : in the data link layer [OSI layer 2], e.g. HDLC
• CPC Class Codes: H04W 16/14 : Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 : Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/00 : Hand-off or reselection arrangements
• CPC Class Codes: H04W 36/0055 : Transmission or use of information for re-establishing the radio link
• CPC Class Codes: H04W 36/0061 : of neighbour cell information
• CPC Class Codes: H04W 36/0088 : Scheduling hand-off measurements
• CPC Class Codes: H04W 36/0094 : Definition of hand-off measurement parameters
• CPC Class Codes: H04W 36/04 : Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 36/16 : Performing reselection for specific purposes
• CPC Class Codes: H04W 36/18 : for allowing seamless reselection, e.g. soft reselection
• CPC Class Codes: H04W 36/22 : for handling the traffic
• CPC Class Codes: H04W 36/30 : by measured or perceived connection quality data
• CPC Class Codes: H04W 36/32 : by location or mobility data, e.g. speed data
• CPC Class Codes: H04W 4/02 : Services making use of location information
• CPC Class Codes: H04W 4/023 : using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• 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 4/16 : Communication-related supplementary services, e.g. call-transfer or call-hold
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 4/90 : Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
• CPC Class Codes: H04W 48/20 : Selecting an access point
• CPC Class Codes: H04W 52/0209 : in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0212 : managed by the network, e.g. network or access point is master and terminal is slave
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0225 : using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 52/0229 : where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 52/0251 : using monitoring of local events, e.g. events related to user activity
• CPC Class Codes: H04W 56/00 : Synchronisation arrangements
• CPC Class Codes: H04W 56/001 : Synchronization between nodes
• CPC Class Codes: H04W 72/02 : Selection of wireless resources by user or terminal
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/12 : Wireless traffic scheduling
• CPC Class Codes: H04W 72/1215 : for collaboration of different radio technologies
• 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 72/27 : between access points
• CPC Class Codes: H04W 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 72/54 : based on quality criteria
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 72/56 : based on priority criteria
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/18 : Management of setup rejection or failure
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Technology for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing is disclosed. In an example, a user equipment (UE) for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing can have computer circuitry configured to: Decode a physical downlink control channel (PDCCH) for downlink control information (DCI) including a timing indication field (TIF); and reconfigure a channel timing for a semi-static UL-DL TDD configuration using the TIF. The channel timing can include a physical downlink shared channel (PDSCH) hybrid automatic repeat request (HARQ) timing, a physical uplink shared channel (PUSCH) scheduling timing, or a PUSCH HARQ timing.

Claims

1. A user equipment (UE) for reconfiguring an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration timing, having computer circuitry configured to:

decode a physical downlink control channel (PDCCH) for downlink control information (DCI) including a timing indication field (TIF); and

reconfigure a channel timing for a semi-static UL-DL TDD configuration using the TIF, wherein the channel timing is selected from the group consisting of a physical downlink shared channel (PDSCH) hybrid automatic repeat request (HARQ) timing, a physical uplink shared channel (PUSCH) scheduling timing, a PUSCH HARQ timing, and combinations thereof.

2. The computer circuitry of claim 1, wherein the TIF is used to dynamically reconfigure the channel timing for a UL-DL TDD configuration within a duration of approximately one radio frame or approximately 10 milliseconds (ms).

3. The computer circuitry of claim 1, wherein the DCI is transmitted in a UE-specific search space and the TIF is conditionally padded to a legacy DCI for the UE to support a UL-DL TDD reconfiguration.

4. The computer circuitry of claim 1, wherein computer circuitry configured to decode the DCI is further configured to:

attempt to decode each PDCCH candidate in a flexible subframe (FlexSF) with a specified DCI format size with the TIF unless the UE is explicitly instructed to transmit in an uplink for a PUCCH (physical uplink control channel) or a PUSCH, wherein the flexible subframe is capable of changing an uplink-downlink transmission direction for a set of legacy UL-DL TDD configurations.

5. The computer circuitry of claim 1, wherein the TIF uses 3-bits to provide a one-to-one mapping to one of seven legacy UL-DL TDD configurations.

6. The computer circuitry of claim 1, wherein the TIF uses 1-bit to indicate a change from the semi-static UL-DL TDD configuration to another predefined UL-DL TDD configuration.

7. The computer circuitry of claim 6, wherein computer circuitry enabled to reconfigure the channel timing is further configured to:

reconfigure the PDSCH HARQ timing based on a combination of enabled TIF values within subframes of a radio frame for a system information block type 1 (SIB1) indicated UL-DL TDD configuration with an increasing number of downlink subframes from the semi-static UL-DL TDD configuration.

8. The computer circuitry of claim 7, wherein the enabled TIF values are 1-bit values having one of two states of either ‘

0’

or ‘

1’

indicating one of two predefined PDSCH HARQ timings for a PDSCH transmission or a downlink semi-persistent scheduling (SPS) release indicated by a detection of a corresponding DCI with the TIF.

9. The computer circuitry of claim 8, wherein the two predefined PDSCH HARQ timings indicated by the TIF are predefined based on a downlink (DL) subframe index and the SIB1 indicated UL-DL configuration.

10. The computer circuitry of claim 9, wherein the two predefined PDSCH HARQ timings for DL subframe n (0≦

n≦

9) are expressed as (n,k₀,k₁), wherein the PDSCH transmission or the downlink SPS release is indicated by the detection of the corresponding PDCCH with the 1-bit TIF in a DL subframe n, and the UE transmits a HARQ-acknowledgment (HARQ-ACK) in a subframe n+k₀ when the TIF value is in a first state or the UE transmits the HARQ-ACK in subframe n+k₁ when the TIF value is in a second state for the SIB1 indicated UL-DL configuration, wherein;

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 0, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,4,12), (1,6,11), (3,9,9), (4,9,8), (5,4,7), (6,6,6), (7,6,5), (8,5,4), and (9,4,13);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 1, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,7,12), (1,6,11), (3,4,9), (4,4,8), (5,7,7), (6,6,6), (7,5,5), (8,5,4), and (9,4,13);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 2, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,7,12), (1,6,11), (3,4,9), (4,8,8), (5,7,7), (6,6,6), (7,5,5), (8,4,4), and (9,8,13);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 3, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,4,12), (1,11,11), (3,9,9), (4,9,8), (5,7,7), (6,6,6), (7,6,5), (8,5,4), and (9,5,13);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 4, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,12,12), (1,11,11), (3,9,9), (4,8,8), (5,7,7), (6,7,6), (7,6,5), (8,5,4), and (9,4,13);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 5, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,12,4);

(1,11,6);

(3,9,9);

(4,8,8);

(5,7,4);

(6,6,6);

(7,5,5);

(8,4,4); and

(9,13,4);

or

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 6, the (n,k₀,k₁) value for the DL subframe n is defined as;

(0,7,12), (1,7,11), (3,9,9), (4,9,8), (5,7,7), (6,7,6), (7,6,5), (8,5,4), and (9,5,13).

11. The computer circuitry of claim 6, wherein computer circuitry enabled to reconfigure the channel timing is further configured to:

reconfigure the PUSCH scheduling timing or the PUSCH HARQ timing based on a combination of enabled TIF values within subframes of a radio frame for a system information block type 1 (SIB1) indicated UL-DL TDD configuration with an increasing number of uplink subframes from the semi-static UL-DL TDD configuration.

12. The computer circuitry of claim 11, wherein the enabled TIF values are 1-bit values having one of two states of either ‘

0’

or ‘

1’

indicating one of two predefined PUSCH HARQ timings for each PUSCH transmission.

13. The computer circuitry of claim 12, wherein the two PUSCH scheduling timings and PUSCH HARQ timings indicated by the TIF are predefined based on an uplink (UL) subframe index and the SIB1 indicated UL-DL configuration.

14. The computer circuitry of claim 13, wherein the two PUSCH HARQ timings for UL subframe jε

{2,3,4,7,8,9} are expressed as (j,h₀,r₀, h₁,r₁), wherein upon detection of a physical hybrid ARQ indicator channel (PHICH) transmission in subframe j−

r_i where iε

{0,1} intended for the UE, the UE adjusts a corresponding PUSCH transmission in subframe j, and receives an associated HARQ-acknowledgment (HARQ-ACK) on the PHICH assigned to the UE in subframe j+h_i, where i=0 when the 1-bit TIF value in the given DCI format for a corresponding first PUSCH transmission in subframe j is in a first state, and i=1 when the 1-bit TIF value in the given DCI format for the corresponding first PUSCH transmission in subframe j is in a second state for the SIB1 indicated UL-DL configuration, wherein;

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 0, the (j,h₀,r₀,h₁,r₁) value for the UL subframe j is defined as;

(2,4,7,4,6), (3,7,4,5,4), (4,6,7,4,4), (7,4,7,8,7), (8,7,4,7,7), and (9,6,7,6,7);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 1, the (j,h₀, r₀,h₁,r₁) value for the UL subframe j is defined as;

(2,4,6,4,6), (3,6,4,13,7), (4,6,4,6,4), (7,4,6,4,6), (8,6,4,13,7), and (9,6,4,6,4);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 2, the (j,h₀,r₀, h₁,r₁) value for the UL subframe j is defined as;

(2,6,4,4,6), (3,6,4,13,7), (4,6,4,6,4), (7,6,4,4,6), (8,13,7,13,7), and (9,6,4,6,4);

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 3 or a TDD configuration 4 or a TDD configuration 5, the (j,h₀,r₀,h₁,r₁) value for the UL subframe j is defined as;

(2,6,4,4,6), (3,6,4,13,7), (4,6,4,6,4), (7,4,6,4,6), (8,13,7,13,7), and (9,6,4,6,4);

or

when the UL-DL configuration indicated by the SIB1 is a TDD configuration 6, the (j,h₀,r₀,h₁,r₁) value for the UL subframe j is defined as;

(2,4,7,6,4), (3,6,5,7,4), (4,6,7,4,4), (7,4,7,8,7), (8,7,7,7,7), and (9,6,4,6,4).

15. The computer circuitry of claim 1, wherein computer circuitry is further configured to:

transmit a PDSCH HARQ to a node based on the reconfigured semi-static UL-DL TDD configuration;

transmit the a PUSCH to the node based on the reconfigured semi-static UL-DL TDD configuration;

or

receive a PUSCH HARQ from the node based on the reconfigured semi-static UL-DL TDD configuration.

16. The computer circuitry of claim 1, wherein computer circuitry is further configured to:

receive the PDCCH in a downlink subframe, a special subframe, or a flexible subframe, wherein the flexible subframe is capable of changing an uplink-downlink transmission direction for a set of legacy UL-DL TDD configurations.

17. The computer circuitry of claim 1, wherein the UE includes at least one of an antenna, a touch sensitive display screen, a speaker, a microphone, a graphics processor, an application processor, internal memory, a non-volatile memory port, and combinations thereof.

18. A method for indicating an uplink-downlink (UL-DL) time-division duplexing (TDD) reconfiguration, comprising:

obtaining a timing indication field (TIF) from a downlink control information (DCI) in a subframe; and

reconfiguring a channel timing for a specified UL-DL configuration using the TIF, wherein the channel timing is selected from the group consisting of a physical downlink shared channel (PDSCH) hybrid automatic repeat request (HARQ) timing, a physical uplink shared channel (PUSCH) scheduling timing, a PUSCH HARQ timing, and combinations thereof.

19. The method of claim 18, further comprising:

decoding each physical downlink control channel (PDCCH) in a flexible subframe (FlexSF), wherein the flexible subframe is capable of changing an uplink-downlink transmission direction for a set of UL-DL configurations.

20. The method of claim 18, wherein the TIF includes 3-bits to provide a mapping to a legacy UL-DL configuration.

21. The method of claim 18, wherein the TIF includes 1-bit to indicate a change in the channel timing for the specified UL-DL configuration configured through a system information block type 1 (SIB1) to a UL-DL configuration with an increase or decrease in downlink subframes relative to the specified UL-DL configuration.

22. The method of claim 21, wherein reconfiguring the channel timing for the specified UL-DL TDD configuration further comprises:

reconfiguring the PDSCH HARQ timing based on a combination of TIF values within subframes of a radio frame for a UL-DL configuration with an increasing number of downlink subframes relative to the specified UL-DL configuration;

reconfiguring the PDSCH HARQ timing based on a combination of TIF values within subframes of the radio frame for a UL-DL configuration with an decreasing number of downlink subframes relative to the specified UL-DL configuration, wherein the specified UL-DL configuration has a maximum number of downlink subframes in a set of legacy UL-DL configurations;

reconfiguring the PUSCH scheduling timing or the PUSCH HARQ based on a combination of TIF values within subframes of the radio frame for a UL-DL configuration with an increasing number of uplink subframes relative to the specified UL-DL configuration;

or

reconfiguring the PUSCH scheduling timing or the PUSCH HARQ based on a combination of TIF values within subframes of the radio frame for a UL-DL configuration with an decreasing number of uplink subframes relative to the specified UL-DL configuration, wherein the specified UL-DL configuration has a maximum number of uplink subframes in a set of legacy UL-DL configurations.

23. At least one non-transitory machine readable storage medium comprising a plurality of instructions adapted to be executed to implement the method of claim 18.

24. A node device of a node configured to dynamically reconfigure an uplink-downlink (UL-DL) time-division duplexing (TDD) configuration, comprising:

a processing module to encode downlink control information (DCI) including a timing indication field (TIF) in a physical downlink control channel (PDCCH), wherein the TIF is used to dynamically reconfigure a UL-DL TDD configuration of a user equipment (UE) by increasing or decreasing a number of uplink subframes in a radio frame from a semi-static UL-DL TDD configuration.

25. The node device of claim 24, further comprising:

a transceiver module to transmit the PDCCH with the TIF to the UE and transmit a flexible subframe (FlexSF) configured as a downlink subframe, wherein the flexible subframe is capable of changing an uplink-downlink transmission direction for a set of UL-DL TDD configurations,

wherein the node is selected from the group consisting of a base station (BS), a Node B (NB), an evolved Node B (eNB), a baseband unit (BBU), a remote radio head (RRH), a remote radio equipment (RRE), a remote radio unit (RRU), a central processing module (CPM), and combinations thereof.

26. The node device of claim 24, further comprising:

a transceiver module to;

receive a physical downlink shared channel (PDSCH) hybrid automatic repeat request (HARQ) from the UE based on the reconfigured UL-DL TDD configuration;

receive a physical uplink shared channel (PUSCH) from the UE based on the reconfigured UL-DL TDD configuration;

or

transmit a PUSCH HARQ to the UE based on the reconfigured UL-DL TDD configuration.

27. The node device of claim 24, wherein the DCI is encoded in a UE-specific search space, the TIF is conditionally padded to a legacy DCI, the TIF uses 3-bits to indicate a mapping to a legacy UL-DL TDD configuration or the TIF uses 1-bit to indicate a change from the semi-static UL-DL TDD configuration to another predefined UL-DL TDD configuration.