HARQ/ACK CODEBOOK SIZE DETERMINATION

• US 20140307596A1
• Filed: 06/25/2014
• Published: 10/16/2014
• Est. Priority Date: 03/16/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Hong He, Jong-Kae Fwu
• Inventors: He, Hong, Fwu, Jong-Kae
• Granted Patent: US 9,258,805 B2
• Time in Patent Office: Days
• US Class Current: 370/280
• CPC Class Codes: H04J 11/0073 Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
• CPC Class Codes: H04L 1/0033 arrangements specific to the transmitter
• CPC Class Codes: H04L 1/0077 Cooperative coding
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1635 Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1877 for semi-reliable protocols, e.g. for less sensitive applications like streaming video buffer level management for video bitstream control arrangements H04N21/44004
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 12/2854 Wide area networks, e.g. public data networks
• CPC Class Codes: H04L 47/283 in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• CPC Class Codes: H04L 47/6275 based on priority
• CPC Class Codes: H04L 5/001 : the frequencies being arranged in component carriers
• 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 5/0073 : 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 5/14 : Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1438 : Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001
• CPC Class Codes: H04L 5/1446 : of transmission speed
• CPC Class Codes: H04L 5/1469 : using time-sharing
• CPC Class Codes: H04L 65/75 : Media network packet handling
• CPC Class Codes: H04L 65/752 : adapting media to network capabilities
• CPC Class Codes: H04L 65/756 : adapting media to device capabilities
• CPC Class Codes: H04L 67/02 : based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04N 21/25841 : involving the geographical location of the client retrieval from the Internet by querying based on geographical locations G06F16/9537; arrangements for identifying locations of receiving stations in broadcast systems H04H60/51; location of the user terminal in data switching networks H04L67/52; services making use of the location of users or terminals in wireless networks H04W4/02; locating users or terminals in wireless networks H04W64/00
• CPC Class Codes: H04N 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/6405 : Multicasting data broadcast and multicast in packet switching networks H04L12/18
• CPC Class Codes: H04N 21/6408 : Unicasting
• CPC Class Codes: H04W 16/04 : Traffic adaptive resource partitioning
• CPC Class Codes: H04W 24/00 : Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/0236 : radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 28/0268 : using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 28/0278 : using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• 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 52/02 : Power saving arrangements in wired systems H04L12/12; signaling of mobile application services, e.g. low battery notifications H04W4/20
• CPC Class Codes: H04W 52/0206 : in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/0209 : in terminal devices terminal devices per se H04W88/02
• 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 52/143 : Downlink power control
• CPC Class Codes: H04W 52/243 : taking into account interferences
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• 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 72/1268 : of uplink data flows
• CPC Class Codes: H04W 72/1273 : of downlink data flows
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• 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 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/569 : of the traffic information
• CPC Class Codes: H04W 74/085 : collision avoidance
• 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: Y02D 30/70 : in wireless communication networks

Abstract

Embodiments of the present disclosure describe devices, methods, computer-readable media and systems configurations for determining a hybrid automatic repeat request (HARQ)-acknowledgment (ACK) codebook in wireless communication networks.

Claims

1-26. -26. (canceled)

27. One or more tangible computer-readable media having instructions, stored thereon, that when executed cause a user equipment (UE) to:

identify time division duplexing (TDD) uplink-downlink (UL-DL) configurations for individual serving cells of a plurality of serving cells, wherein at least two of the individual serving cells have different TDD UL-DL configurations;

obtain a downlink assignment index (DAI);

determine a value based on the DAI; and

for a first serving cell of the plurality of serving cells;

determine a number of downlink subframes or special subframes that are included in a bundling window associated with an uplink subframe; and

select the lesser of the determined value or the determined number of downlink subframes or special subframes included in the bundling window to correspond to a number of subframes for which the UE needs to feedback hybrid automatic repeat request—

acknowledgement (HARQ-ACK) bits for the first serving cell.

28. The one or more media of claim 27, wherein the instructions, when executed, further cause the UE to, for the first serving cell:

determine a number of HARQ-ACK bits to be transmitted in the uplink subframe based on the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for the individual serving cell and based on a number of transport blocks supported per downlink subframe in a transmission mode of the first serving cell.

29. The one or more media of claim 28, wherein the instructions, when executed, further cause the UE to determine, based on the determined number of HARQ-ACK bits to be transmitted in the uplink subframe for the first serving cell, a total number of HARQ-ACK bits associated with a codebook of the plurality of serving cells.

30. The one or more media of claim 29, wherein the instructions, when executed, further cause the UE to:

puncture physical uplink shared channel (PUSCH) resource elements of the uplink subframe with the determined total number of HARQ-ACK bits.

31. The one or more media of claim 27, wherein the UE is to select the lesser of the determined value or the determined number of downlink subframes to correspond to the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for the first serving cell responsive to a determination that the UL/DL configuration of all of the serving cells is one of configuration 0, 1, 2, 3, 4, or 6.

32. The one or more media of claim 31, wherein the instructions, when executed, further cause the UE to, responsive to a determination that the UL/DL configuration of at least one of the serving cells is configuration 5, determine the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for the first serving cell based on:

b_c^DL=min (W_DAI^UL+4|U−

W_DAI^UL)/4|M_c),

where B_c^DL is the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for serving cell c, W_DAI^UL is the value that corresponds to the DAI, U is a maximum value of U_c among the plurality of serving cells, U_c is a number of received physical downlink shared channels (PDSCHs) and physical downlink control channels (PDCCHs) indicating downlink semi-persistent scheduling (SPS) release for serving cell c, and M_c is the number of downlink subframes or special subframes for the individual serving cell that are included in the bundling window associated with the uplink subframe.

33. The one or more media of claim 27, wherein the value determined based on the DAI corresponds to a maximum value of a number of scheduled downlink subframes within bundling windows of the plurality of serving cells.

34. The one or more media of claim 27, wherein the plurality of serving cells include a primary serving cell (PCell) and a secondary serving cell (SCell), and wherein the instructions, when executed, further cause the UE to:

determinine a DL-reference configuration for the SCell based on the UL-DL configuration of the PCell and the UL-DL configuration of the SCell.

35. The one or more media of claim 34, wherein the DL-reference configuration for the SCell is different from the UL-DL configuration of the SCell.

36. The one or more media of claim 27, wherein the DAI is included in downlink control information (DCI) that allocates an uplink transmission resource of a serving cell associated with the uplink subframe, and wherein the DCI has a format that is DCI format 0 or DCI format 4.

37. An apparatus to be employed by a user equipment (UE), the apparatus comprising:

transceiver circuitry to communicate via a plurality of configured serving cells, wherein at least two of the serving cells have different time division duplexing (TDD) uplink-downlink (UL-DL) configurations; and

a feedback controller coupled with the transceiver circuitry, the feedback controller to;

receive downlink control information (DCI) that allocates resources of an uplink subframe associated with a first serving cell of the plurality of configured serving cells, wherein the DCI includes a downlink assignment index (DAI);

determine a value based on the DAI;

determine a number of downlink subframes or special subframes, for a second serving cell of the plurality of configured serving cells, that are included in a bundling window associated with the uplink subframe;

select the lesser of the determined value or the determined number of downlink subframes or special subframes included in the bundling window to correspond to a number of downlink subframes for which the UE is to to feedback hybrid automatic repeat request—

acknowledgement (HARQ-ACK) bits for the second serving cell.

38. The apparatus of claim 37, wherein the feedback controller is further to determine a number of HARQ-ACK bits for the second serving cell that are to be transmitted in the uplink subframe based on the number of subframes for which the UE is to feedback HARQ-ACK bits for the second serving cell and based on a number of transport blocks supported per downlink subframe in a transmission mode of the second serving cell.

39. The apparatus of claim 38, wherein the feedback controller is to determine a codebook size associated with the uplink subframe based on the determined number of HARQ-ACK bits for the second serving cell.

40. The apparatus of claim 38, wherein the transceiver circuitry is to puncture physical uplink shared channel (PUSCH) resource elements of the uplink subframe with the HARQ-ACK bits.

41. The apparatus of claim 37, wherein the transceiver is to select the lesser of the determined value or the determined number of downlink subframes to correspond to the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for the second serving cell is performed responsive to a determination that the UL/DL configuration of all individual serving cells of the plurality of configured serving cells is configuration 0, 1, 2, 3, 4, or 6.

42. The apparatus of claim 37, wherein the value determined based on the DAI corresponds to a maximum value of a number of scheduled downlink subframes within bundling windows of the plurality of configured serving cells.

43. The apparatus of claim 37, wherein the feedback controller is to:

determine a UL-DL configuration for the first serving cell;

determine a UL-DL configuration for the second serving cell; and

determine a DL-reference configuration for the second serving cell based on the UL-DL configuration of the first serving cell and the UL-DL configuration of the second serving cell.

44. A UE comprising the apparatus of claim 37, and further comprising a touchscreen display coupled to the apparatus.

45. One or more tangible computer-readable media having instructions, stored thereon, that when executed cause an evolved Node B (eNB):

transmit configuration information to a user equipment (UE) to configure the UE to communicate with the eNB over a plurality of serving cells, wherein at least two of the serving cells have different time division duplexing (TDD) uplink-downlink (UL-DL) configurations;

transmit a downlink assignment index (DAI) to the UE; and

process hybrid automatic repeat request—

acknowledgement (HARQ-ACK) bits received by the eNB in an uplink subframe associated with bundling windows of the plurality of serving cells, wherein a number of the HARQ-ACK bits in the uplink subframe for a first serving cell of the plurality of serving cells is based on the lesser of;

a value corresponding to the DAI;

or

a number of downlink subframes or special subframes for the first serving cell that are included in the bundling window associated with the uplink subframe.

46. The one or more media of claim 45, wherein the number of the HARQ-ACK bits in the uplink subframe is further based on a number of transport blocks supported per downlink subframe for a transmission mode of the serving cells.

47. The one or more media of claim 45, wherein the uplink subframe is received by a second serving cell of the plurality of serving cells.

48. The one or more media of claim 45, wherein the DAI is included in downlink control information (DCI) that allocates resources of the uplink subframe, and wherein the DCI has a format that is DCI format 0 or DCI format 4.

49. A method to be performed by a user equipment (UE), the method comprising:

receiving configuration information for a plurality of serving cells to indicate respective time division duplexing (TDD) uplink-downlink (UL-DL) configurations for individual serving cells of the plurality of serving cells, wherein at least two of the serving cells have different TDD UL-DL configurations;

receiving a downlink assignment index (DAI) that allocates an uplink transmission resource of a serving cell associated with an uplink subframe;

determining a value based on the DAI;

determining, for a first serving cell of a plurality of serving cells, a number of downlink subframes or special subframes that are included in a bundling window associated with the uplink subframe; and

selecting the lesser of the determined value or the determined number of downlink subframes or special subframes included in the bundling window to correspond to a number of subframes for which the UE needs to feedback hybrid automatic repeat request—

acknowledgement (HARQ-ACK) bits for the first serving cell.

50. The method of claim 49, further comprising:

determining a number of HARQ-ACK bits to be transmitted in the uplink subframe for the first serving cell based on the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for the first serving cell and based on a number of transport blocks supported per downlink subframe in a transmission mode of the first serving cell; and

determining a total number of HARQ-ACK bits associated with a codebook of the plurality of serving cells based on the determined number of HARQ-ACK bits to be transmitted in the uplink subframe for the first serving cell.

51. The method of claim 49, wherein the selecting the lesser of the determined value or the determined number of downlink subframes to correspond to the number of downlink subframes for which the UE needs to feedback HARQ-ACK bits for the first serving cell is performed responsive to a determination that the UL/DL configuration of all of the serving cells is one of configuration 0, 1, 2, 3, 4, or 6.