Adaptive UL-DL TDD configurations in a heterogneous network

• US 10,231,264 B2
• Filed: 07/06/2017
• Issued: 03/12/2019
• Est. Priority Date: 04/13/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Chatterjee, Debdeep, Fwu, Jong-Kae, Khoryaev, Alexey, He, Hong, Shilov, Mikhail A., Chervyakov, Andrey, Panteleev, Sergey
• Primary Examiner(s): Alia, Curtis A
• Application Number:
  US15/643,237
• Publication Number:
  US 20170311350A1
• Time in Patent Office: 614 Days
• 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 5/0001 Arrangements for dividing the transmission path duplexing H04L5/14; multiplexing of different sources on one path H04J
• CPC Class Codes: H04L 5/0023 Time-frequency-space
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• 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 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/02 Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 28/0226 based on location or mobility handoff or reselection H04W36/00; mobile application services making use of the location of users or terminals H04W4/02
• 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 36/0016 Hand-off preparation specially adapted for end-to-end data sessions
• CPC Class Codes: H04W 36/08 Reselecting an access point
• 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 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• 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 74/0808 : using carrier sensing, e.g. carrier sense multiple access [CSMA]
• CPC Class Codes: H04W 74/0833 : Random access procedures, e.g. with 4-step access
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/19 : Connection re-establishment
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Technology for a first eNodeB is disclosed. The first eNodeB can decode an uplink-downlink (UL-DL) time-division duplexing (TDD) subframe reconfiguration received from a second eNodeB. The UL-DL TDD subframe reconfiguration can be for the first eNodeB. The first eNodeB can encode the UL-DL TDD subframe reconfiguration received from the second eNodeB for transmission to a plurality of user equipment (UEs).

Claims

1. An apparatus of a first eNodeB, the apparatus comprising:

memory storing instructions; and

one or more processors configured to, upon execution of the instructions, perform the following;

decode, at the first eNodeB, an uplink-downlink (UL-DL) time-division duplexing (TDD) subframe reconfiguration received from a second eNodeB,

wherein the UL-DL TDD subframe reconfiguration is for the first eNodeB; and

encode, at the first eNodeB, the UL-DL TDD subframe reconfiguration received from the second eNodeB for transmission to a plurality of user equipment (UEs).

2. The apparatus of claim 1, further comprising a transceiver configured to transmit the UL-DL TDD subframe reconfiguration to the plurality of UEs.

3. The apparatus of claim 1, wherein the one or more processors are configured to encode the UL-DL TDD subframe reconfiguration for transmission to the plurality of UEs using a physical downlink control channel (PDCCH) and in accordance with a defined downlink control information (DCI) format.

4. The apparatus of claim 1, wherein the one or more processors are configured to encode the UL-DL TDD subframe reconfiguration for transmission to the plurality of UEs using a physical downlink control channel (PDCCH) and in accordance with downlink control information (DCI) format 1c.

5. The apparatus of claim 1, wherein the one or more processors are configured to decode the UL-DL TDD subframe reconfiguration received from the second eNodeB via an X2 interface between the first eNodeB and the second eNodeB.

6. The apparatus of claim 1, wherein the one or more processors are further configured to:

control intra-frequency neighboring cells; and

control inter-frequency neighboring cells.

7. The apparatus of claim 1, wherein the one or more processors are further configured to decode interference coordination information received from the second eNodeB, wherein the interference coordination information includes the UL-DL TDD subframe reconfiguration for the first eNodeB.

8. The apparatus of claim 1, wherein the one or more processors are further configured to perform scheduling of data for the plurality of UEs with reduced interference using the UL-DL TDD subframe reconfiguration.

9. The apparatus of claim 1, wherein the first eNodeB is a neighboring node of the second eNodeB.

10. At least one non-transitory machine readable storage medium having instructions that when executed by at least one processor performs the following:

decoding, at a first eNodeB, an uplink-downlink (UL-DL) time-division duplexing (TDD) subframe reconfiguration received from a second eNodeB, wherein the UL-DL TDD subframe reconfiguration is for the first eNodeB; and

encoding, at the first eNodeB, the UL-DL TDD subframe reconfiguration received from the second eNodeB for transmission to a plurality of user equipment (UEs).

11. The at least one non-transitory machine readable storage medium of claim 10, further comprising instructions that when executed by the at least one processor performs the following:

encoding the UL-DL TDD subframe reconfiguration for transmission to the plurality of UEs using a physical downlink control channel (PDCCH) and in accordance with a defined downlink control information (DCI) format.

12. The at least one non-transitory machine readable storage medium of claim 10, further comprising instructions that when executed by the at least one processor performs the following:

encoding the UL-DL TDD subframe reconfiguration for transmission to the plurality of UEs using a physical downlink control channel (PDCCH) and in accordance with downlink control information (DCI) format 1c.

13. The at least one non-transitory machine readable storage medium of claim 10, further comprising instructions that when executed by the at least one processor performs the following:

decoding the UL-DL TDD subframe reconfiguration received from the second eNodeB via an X2 interface between the first eNodeB and the second eNodeB.

14. The at least one non-transitory machine readable storage medium of claim 10, further comprising instructions that when executed by the at least one processor performs the following:

controlling intra-frequency neighboring cells; and

controlling inter-frequency neighboring cells.

15. The at least one non-transitory machine readable storage medium of claim 10, further comprising instructions that when executed by the at least one processor performs the following:

decoding interference coordination information received from the second eNodeB, wherein the interference coordination information includes the UL-DL TDD subframe reconfiguration for the first eNodeB.

16. The at least one non-transitory machine readable storage medium of claim 10, further comprising instructions that when executed by the at least one processor performs the following:

performing scheduling of data for the plurality of UEs with reduced interference using the UL-DL TDD subframe reconfiguration.

17. The at least one non-transitory machine readable storage medium of claim 10, wherein the first eNodeB is a neighboring node of the second eNodeB.

18. An apparatus of a reference eNodeB, the apparatus comprising:

memory storing instructions; and

one or more processors configured to, upon execution of the instructions, perform the following;

determine, at the reference eNodeB, an uplink-downlink (UL-DL) time-division duplexing (TDD) subframe reconfiguration for a neighboring eNodeB; and

encode, at the reference eNodeB, the UL-DL TDD subframe reconfiguration for transmission to the neighboring eNodeB, wherein the neighboring eNodeB configured to perform data scheduling for a plurality of user equipment (UEs) with reduced interference using the UL-DL TDD subframe reconfiguration received from the reference eNodeB.

19. The apparatus of claim 18, wherein the one or more processors are configured to encode the UL-DL TDD subframe reconfiguration for transmission to the neighboring eNodeB via an X2 interface between the reference eNodeB and the neighboring eNodeB.

20. The apparatus of claim 18, wherein the one or more processors are configured to determine interference coordination information for the neighboring eNodeB, wherein the interference coordination information includes the UL-DL TDD subframe reconfiguration for the neighboring eNodeB.

21. At least one non-transitory machine readable storage medium having instructions that when executed by at least one processor performs the following:

determining, at a reference eNodeB, an uplink-downlink (UL-DL) time-division duplexing (TDD) subframe reconfiguration for a neighboring eNodeB; and

encoding, at the reference eNodeB, the UL-DL TDD subframe reconfiguration for transmission to the neighboring eNodeB, wherein the neighboring eNodeB configured to perform data scheduling for a plurality of user equipment (UEs) with reduced interference using the UL-DL TDD subframe reconfiguration received from the reference eNodeB.

22. The at least one non-transitory machine readable storage medium of claim 21, further comprising instructions that when executed by the at least one processor performs the following:

encoding the UL-DL TDD subframe reconfiguration for transmission to the second eNodeB via an X2 interface between the first eNodeB and the second eNodeB.

23. The at least one non-transitory machine readable storage medium of claim 21, further comprising instructions that when executed by the at least one processor performs the following:

determining interference coordination information for the second eNodeB, wherein the interference coordination information includes the UL-DL TDD subframe reconfiguration for the second eNodeB.