Radio shared spectrum access procedures

• US 10,206,117 B2
• Filed: 07/19/2017
• Issued: 02/12/2019
• Est. Priority Date: 10/26/2016
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Damnjanovic, Aleksandar, Mallik, Siddhartha, Montojo, Juan, Zhang, Xiaoxia, Yoo, Taesang
• Primary Examiner(s): Cumming, William D
• Application Number:
  US15/654,299
• Publication Number:
  US 20180115906A1
• Time in Patent Office: 573 Days
• Field of Search: 370315, 370320
• CPC Class Codes: H04B 17/309 Measuring or estimating channel quality parameters
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 56/001 Synchronization between nodes
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 74/08 Non-scheduled access, e.g. ALOHA hybrid access H04W74/02
• CPC Class Codes: H04W 74/0816 with collision avoidance
• CPC Class Codes: H04W 74/0825 with collision detection
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access

Abstract

Certain aspects of the present disclosure provide techniques for accessing shared spectrum in new radio (NR). An apparatus of a first operator may determine a synchronization configuration for the first operator and at least a second operator that share spectrum, identify, based on the synchronization configuration, at least a first channel reserved for contending for access to the spectrum, and reserve the access to the spectrum in the first channel to access at least a second channel for communications.

Claims

1. A method of wireless communication by an apparatus of a first operator, comprising:

determining a synchronization configuration for the first operator and at least a second operator that share spectrum, comprising determining that the first operator is synchronized with the second operator and that the apparatus is synchronized with at least one wireless node associated with the first operator;

identifying, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum, wherein the first channel comprises a first subchannel dedicated for wireless nodes associated with the first operator to reserve access to the spectrum and a second subchannel dedicated for wireless nodes associated with the second operator to reserve access to the spectrum; and

reserving the access to the spectrum in the first subchannel of the first channel to access at least a second channel for communications.

2. The method of claim 1, wherein each of the first and second subchannels comprises a portion dedicated for reserving access to the spectrum to access the second channel for downlink traffic and another portion dedicated for reserving access to the spectrum to access the second channel for uplink traffic.

3. A method of wireless communication by an apparatus of a first operator, comprising:

determining a synchronization configuration for the first operator and at least a second operator that share spectrum, comprising determining that the first operator is synchronized with the second operator and that the apparatus is synchronized with at least one wireless node associated with the first operator;

identifying, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum;

reserving the access to the spectrum in the first channel to access at least a second channel for communications;

monitoring for a reservation message transmitted by a first wireless node of the second operator during the first channel;

determining, based on detecting the reservation message, that the first wireless node of the second operator has reserved the second channel for communications; and

protecting communications between the first wireless node of the second operator and a second wireless node of the second operator during the second channel.

4. The method of claim 3, wherein protecting the communications between the first and second wireless nodes of the second operator is based on a direction of the communications between the first and second wireless nodes of the second operator.

5. An apparatus of a first operator for wireless communication, comprising:

means for determining a synchronization configuration for the first operator and at least a second operator that share spectrum, wherein the means for determining the synchronization configuration determines that the first operator is synchronized with the second operator and that the apparatus is synchronized with at least one wireless node associated with the first operator;

means for identifying, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum, wherein the first channel comprises a first subchannel dedicated for wireless nodes associated with the first operator to reserve access to the spectrum and a second subchannel dedicated for wireless nodes associated with the second operator to reserve access to the spectrum; and

means for reserving the access to the spectrum in the first subchannel of the first channel to access at least a second channel for communications.

6. The apparatus of claim 5, wherein each of the first and second subchannels comprises a portion dedicated for reserving access to the spectrum to access the second channel for downlink traffic and another portion dedicated for reserving access to the spectrum to access the second channel for uplink traffic.

7. An apparatus of a first operator for wireless communication, comprising:

means for determining a synchronization configuration for the first operator and at least a second operator that share spectrum, wherein the means for determining the synchronization configuration determines that the first operator is synchronized with the second operator and that the apparatus is synchronized with at least one wireless node associated with the first operator;

means for identifying, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum;

means for reserving the access to the spectrum in the first channel to access at least a second channel for communications;

means for monitoring for a reservation message transmitted by a first wireless node of the second operator during the first channel;

means for determining, based on detecting the reservation message, that the first wireless node of the second operator has reserved the second channel for communications; and

means for protecting communications between the first wireless node of the second operator and a second wireless node of the second operator during the second channel.

8. The apparatus of claim 7, wherein the means for protecting protects the communications between the first and second wireless nodes of the second operator based on a direction of the communications between the first and second wireless nodes of the second operator.

9. An apparatus of a first operator for wireless communication, comprising:

at least one processor configured to;

determine a synchronization configuration for the first operator and at least a second operator that share spectrum by determining that the first operator is synchronized with the second operator and that the apparatus is synchronized with at least one wireless node associated with the first operator;

identify, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum, wherein the first channel comprises a first subchannel dedicated for wireless nodes associated with the first operator to reserve access to the spectrum and a second subchannel dedicated for wireless nodes associated with the second operator to reserve access to the spectrum; and

reserve the access to the spectrum in the first subchannel of the first channel to access at least a second channel for communications; and

a memory coupled to the at least one processor.

10. The apparatus of claim 9, wherein each of the first and second subchannels comprises a portion dedicated for reserving access to the spectrum to access the second channel for downlink traffic and another portion dedicated for reserving access to the spectrum to access the second channel for uplink traffic.

11. An apparatus of a first operator for wireless communication, comprising:

at least one processor configured to;

determine a synchronization configuration for the first operator and at least a second operator that share spectrum by determining that the first operator is synchronized with the second operator and that the apparatus is synchronized with at least one wireless node associated with the first operator;

identify, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum; and

reserve the access to the spectrum in the first channel to access at least a second channel for communications;

a receiver configured to monitor for a reservation message transmitted by a first wireless node of the second operator during the first channel, wherein the at least one processor is further configured to;

determine, based on detecting the reservation message, that the first wireless node of the second operator has reserved the second channel for communications; and

protect communications between the first wireless node of the second operator and a second wireless node of the second operator during the second channel; and

a memory coupled to the at least one processor.

12. The apparatus of claim 11, wherein the at least one processor is configured to protect the communications between the first and second wireless nodes of the second operator based on a direction of the communications between the first and second wireless nodes of the second operator.

13. A non-transitory computer-readable medium having storing instructions that, when executed by a processor, cause the processor to perform an operation for wireless communications, the operation comprising:

determining a synchronization configuration for a first operator and at least a second operator that share spectrum, comprising determining that the first operator is synchronized with the second operator and that an apparatus of the first operator is synchronized with at least one wireless node associated with the first operator;

identifying, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum, wherein the first channel comprises a first subchannel dedicated for wireless nodes associated with the first operator to reserve access to the spectrum and a second subchannel dedicated for wireless nodes associated with the second operator to reserve access to the spectrum; and

reserving the access to the spectrum in the first subchannel of the first channel to access at least a second channel for communications.

14. A non-transitory computer-readable medium having storing instructions that, when executed by a processor, cause the processor to perform an operation for wireless communications, the operation comprising:

determining a synchronization configuration for a first operator and at least a second operator that share spectrum, comprising determining that the first operator is synchronized with the second operator and that an apparatus of the first operator is synchronized with at least one wireless node associated with the first operator;

identifying, based on the synchronization configuration, at least a first channel dedicated for reserving access to the spectrum;

reserving the access to the spectrum in the first channel to access at least a second channel for communications;

monitoring for a reservation message transmitted by a first wireless node of the second operator during the first channel;

determining, based on detecting the reservation message, that the first wireless node of the second operator has reserved the second channel for communications; and

protecting communications between the first wireless node of the second operator and a second wireless node of the second operator during the second channel.