Techniques for identifying physical hybrid automatic request indicator channel resources

• US 10,003,994 B2
• Filed: 09/16/2014
• Issued: 06/19/2018
• Est. Priority Date: 09/17/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Han, Seunghee, Xiong, Gang
• Primary Examiner(s): Zaidi, Iqbal
• Application Number:
  US15/022,484
• Publication Number:
  US 20160234809A1
• Time in Patent Office: 1,372 Days
• Field of Search: 370209-339
• CPC Class Codes: G01S 5/0236 Assistance data, e.g. base station almanac
• CPC Class Codes: H04B 7/2643 using time-division multiple access [TDMA] H04B7/2615, H04B7/2618 take precedence
• CPC Class Codes: H04J 13/0048 Walsh
• CPC Class Codes: H04J 3/02 Details electronic switching or gating H03K17/00
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0051 of dedicated pilots, i.e. pilots destined for a single user or terminal
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0236 radio quality, e.g. interference, losses or delay
• CPC Class Codes: H04W 28/0242 Determining whether packet losses are due to overload or to deterioration of radio communication conditions
• CPC Class Codes: H04W 28/0247 based on conditions of the access network or the infrastructure network central resource management H04W28/16
• 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 28/12 using signalling between network elements
• CPC Class Codes: H04W 36/04 Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 4/14 Short messaging services, e.g. short message services [SMS] or unstructured supplementary service data [USSD]
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0466 : the resource being a scrambling code
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]

Abstract

Examples may include techniques for a identifying physical hybrid automatic request (HARQ) indicator channel (PHICH) resources. A PHICH resource along with one or more additional PHICH may be identified for use to enhance coverage for user equipment to receive positive acknowledgements (ACKs) or negative acknowledgement (NAKs) from an evolved Node B (eNB). An ACK/NAK may be sent to the UE by the eNB responsive to receiving data over a physical uplink shared channel (PUSCH) established with the UE. Both the UE and the eNB may operate in compliance with one or more 3rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards.

Claims

1. An apparatus comprising:

a processor circuit for user equipment (UE) capable of operating in compliance with one or more 3^rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including LTE-Advanced (LTE-A);

a receive component for execution by the processor circuit to receive information to establish a physical uplink shared channel (PUSCH) with an evolved Node B (eNB);

an identify component for execution by the processor circuit to determine based on the information an identification of a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) resource represented by an index pair including a PHICH group number for a PHICH group and a PHICH sequence; and

an additional resource component for execution by the processor circuit to identify one or more additional PHICH resources based on further information received from the eNB by the receive component or use of a rule-based assignment;

wherein the further information is to include a number of identified index pairs for use as additional PHICH resources to enhance coverage for the UE via an established PUSCH with the eNB;

wherein the additional resource component is to determine whether use of all or some of the number of identified index pairs is needed to enhance coverage; and

further comprising an indicate component for execution by the processor circuit to indicate to the eNB which index pairs to use from among the number of identified index pairs based on the determination by the additional resource component;

wherein the additional resource component is to cause repeated use of the determined identified index pairs in a time domain to further enhance coverage of the UE via the established PUSCH with the eNB.

2. The apparatus of claim 1, comprising the identification of the PHICH resource by the identity component is represented by the index pair (n_PHICH^group,n_PHICH^seq), where n_PHICH^group is the group number and n_PHICH^seq is an orthogonal sequence index within the group as defined by:

3. The apparatus of claim 1, comprising a digital display coupled to the processor circuit to present a user interface view.

4. A method comprising:

receiving, at user equipment (UE) capable of operating in compliance with one or more 3^rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including LTE-Advanced (LTE-A), information to establish a physical uplink shared channel (PUSCH) with an evolved Node B (eNB);

determining based on the information an identification of a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) resource represented by an index pair including a PHICH group number for a PHICH group and a PHICH sequence; and

identifying one or more additional PHICH resources based on further information received from the eNB or using a rule-based assignment, wherein the identified PHICH resources are represented by the index pair (n_PHICH^group,n_PHICH^seq) where n_PHICH^group is the group number and n_PHICH^seq is an orthogonal sequence index within the group as defined by;

5. The method of claim 4, the further information including a number of identified index pairs for use to enhance coverage for the UE via an established PUSCH with the eNB.

6. The method of claim 4, identifying the one or more additional PHICH resources based on a total number of PHICH resources assigned by the eNB, the total number is represented by “

N” and

the one or more additional PHICH resources is represented by “

N−

1”

.

7. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources comprises determining an identity in a consecutive manner by increasing or decreasing I_{PRB_RA}^lowest_index for determining (n_PHICH^group,n_PHICH^seq).

8. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by increasing a parameter for determining the PHICH group number or PHICH sequence index induced from I_{PRB_RA}^lowest_index such that that

9. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by decreasing a parameter for determining the PHICH group number or PHICH sequence index induced from I_{PRB_RA}^lowest_index such that that

10. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by increasing both PHICH group number and PHICH sequence induced from I_{PRB_RA}^lowest_index such that that n_PHICH^group=(n_PHICH^group+p)mod N_PHICH^group and n_PHICH^seq=(n_PHICH^seq+p)mod 2N_SF^PHICH, where p is any whole positive integer with a value of 1 to N−

1.

11. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by decreasing both PHICH group number and PHICH sequence induced from I_{PRB_RA}^lowest_index such that that n_PHICH^group=(n_PHICH^group+p)mod N_PHICH^group and n_PHICH^seq=(n_PHICH^seq+p)mod 2N_SF^PHICH, where p is any whole positive integer with a value of 1 to N−

1.

12. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by increasing either PHICH group number or PHICH sequence such that

13. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by decreasing either PHICH group number or PHICH sequence such that

14. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by increasing either PHICH group number or PHICH sequence such that

15. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by decreasing either PHICH group number or PHICH sequence such that

16. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by increasing either PHICH group number or PHICH sequence such that n_PHICH^group=(n_PHICH^group+p)mod N_PHICH^group and n_PHICH^seq=(n_PHICH^seq)mod 2N_SF^PHICH and such that n_PHICH^group=(n_PHICH^group)mod N_PHICH^group and n_PHICH^seq=(n_PHICH^seq+p)mod 2N_SF^PHICH, where p is any whole positive integer with a value of 1 to N−

1.

17. The method of claim 6, comprising using the rule-based assignment to identify the one or more additional PHICH resources, the rule-based assignment including determining an identity in a consecutive manner by increasing either PHICH group number or PHICH sequence such that n_PHICH^group=(n_PHICH^group−

p)mod N_PHICH^group and n_PHICH^seq=(n_PHICH^seq)mod 2N_SF^PHICH and such that n_PHICH^group=(n_PHICH^group)mod N_PHICH^group and n_PHICH^seq=(n_PHICH^seq−

p)mod 2N_SF^PHICH, where p is any whole positive integer with a value of 1 to N−

1.

18. At least one non-transitory machine readable medium comprising a plurality of instructions that in response to being executed on a system for an evolved Node B (eNB) capable of operating in compliance with one or more or more 3^rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including LTE-Advanced (LTE-A) causes the system to:

send information to user equipment (UE) that includes an assigned physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) resource represented by an index pair including a PHICH group number for a PHICH group and a PHICH sequence;

assign one or more additional PHICH resources to the UE based a set number of PHICH resources or an adjustable number of PHICH resources; and

establish a physical uplink shared channel (PUSCH) with the UE based, at least in part, on the assigned PHICH resource and the assigned one or more additional PHICH resources;

wherein the index pair includes the PHICH group number and the PHICH sequence is identified as (n_PHICH^group,n_PHICH^seq), where n_PHICH^group is the group number and n_PHICH^seq is an orthogonal sequence index within the group as defined by;

19. The at least one non-transitory machine readable medium of claim 18, comprising the instructions to further cause the system to:

adjust the adjustable number responsive to managing PHICH overhead or avoiding a PHICH resource collision with the UE or another UE having a separate PUSCH established with the eNB.

20. The at least one non-transitory machine readable medium of claim 18, the assigned one or more additional PHICH resources for use to enhance coverage for the UE via the established PUSCH between the eNB and the UE.

21. An apparatus comprising:

a processor circuit for user equipment (UE) capable of operating in compliance with one or more 3^rd Generation Partnership Project (3GPP) Long Term Evolution (LTE) standards including LTE-Advanced (LTE-A);

a receive component for execution by the processor circuit to receive information to establish a physical uplink shared channel (PUSCH) with an evolved Node B (eNB);

an identify component for execution by the processor circuit to determine based on the information an identification of a physical hybrid automatic repeat request (HARQ) indicator channel (PHICH) resource represented by an index pair including a PHICH group number for a PHICH group and a PHICH sequence; and

an additional resource component for execution by the processor circuit to identify one or more additional PHICH resources based on further information received from the eNB by the receive component or use of a rule-based assignment, wherein the identification of the PHICH resource by the identity component is represented by the index pair (n_PHICH^group,n_PHICH^seq), where n_PHICH^group is the group number and n_PHICH^seq is an orthogonal sequence index within the group as defined by;