Resource selection for dual radio terminals

Abstract

Systems, methods and apparatus described herein include features that enable dual radio access. In one embodiment, the access point directs an access terminal through sequential measurements, which are selected by the access point based on the radio access capability of the access terminal, service preferences of the user and measurement reports. In a complementary method, an access terminal obtains the sequential measurements chosen by the access point. In another embodiment, the access point directs an access terminal through a set of measurements, which are selected by the access point based on the radio access capability of the access terminal and service preferences of the user. In another embodiment, an access terminal selects which subset of measurements to obtain based on the radio access capability of the access terminal and optionally service preferences of the user.

What is claimed is:  
     
       1. A non-transitory computer-readable medium storing code that, when executed by a processor, causes one or more computers to:
 receive a request for a second radio access technology on a second frequency band, wherein accessing the second radio access technology causes a change in the capability of an access terminal to receive a first radio access technology; 
 prepare a first measurement request associated with providing the second radio access technology utilizing an indicator of a dual radio access capability of the access terminal; 
 transmit the first measurement request to the access terminal; 
 receive a first measurement report from the access terminal; 
 select, utilizing the first measurement report, a third radio access technology on a third frequency band to replace the first radio access technology; 
 select a preferred delivery for the third radio access technology utilizing the first measurement report; 
 prepare a second measurement request associated with providing the third radio access technology utilizing the first measurement report; 
 transmit the second measurement request to the access terminal; 
 receive a second measurement report from the access terminal, wherein the second measurement report comprises at least one measurement; and 
 initiate a concurrent handover from the first radio access technology to the second and the third radio access technology. 
 
     
     
       2. The computer-readable medium of  claim 1 , wherein the request indicates that the access terminal is eligible for communicating via the second radio access technology. 
     
     
       3. The computer-readable medium of  claim 1 , wherein the second frequency band and the third frequency band are one of intra-frequency bands in relation to one another or inter-frequency bands in relation to one another. 
     
     
       4. The computer-readable medium of  claim 1 , wherein the first radio access technology comprises long term evolution (LTE) data service, the second radio access technology comprises a circuit-switched voice service and the third radio access technology comprises an intra-frequency data service. 
     
     
       5. The computer-readable medium of  claim 1 , wherein the preferred delivery of the third radio access technology is compatible with a preferred delivery of the second radio access technology and the dual radio access capability of the access terminal. 
     
     
       6. The computer-readable medium of  claim 1 , further storing code that, when executed by the processor, causes the one or more computers to:
 prepare the first measurement request to include a request to measure a plurality of frequency bands, wherein the plurality of frequency bands include candidates for a preferred delivery of the second radio access technology and the preferred delivery for the third radio access technology; and 
 select the respective preferred deliveries for the second radio access technology and the third radio access technology utilizing the first measurement report provided by the access terminal. 
 
     
     
       7. The computer-readable medium of  claim 6 , wherein the plurality of frequency bands comprises the available frequency bands on which the second radio access technology is provided. 
     
     
       8. The computer-readable medium of  claim 6 , wherein the first measurement report comprises measurements for a subset of the plurality of frequency bands for which measurements were requested in the first measurement request. 
     
     
       9. A non-transitory computer-readable medium storing code that, when executed by a processor, causes one or more computers to:
 communicate via a first radio access technology on a first frequency band with an access point; 
 transmit a request for a second radio access technology provided on a second frequency band, wherein participating in the reception of the second radio access technology is not compatible with the capability of an access terminal to receive the first radio access technology; 
 receive a first measurement request to the access terminal; 
 obtain at least one measurement; 
 transmit a first measurement report to the access point, wherein the first measurement report comprises at least one measurement; 
 receive a second measurement request for a preferred delivery of a third radio access technology in response to transmitting the first measurement report; 
 obtain at least one measurement in response to the second measurement request; 
 transmit a second measurement report to the access point, wherein the second measurement report comprises at least one measurement; and 
 receive a handoff initiation message, to initiate a concurrent handover from the first radio access technology to the second radio access technology and the third radio access technology on a third frequency band, from the access point. 
 
     
     
       10. The computer-readable medium of  claim 9 , wherein the request indicates that the access terminal is a proposed participant for the reception of the second radio access technology. 
     
     
       11. The computer-readable medium of  claim 9 , wherein the second frequency band and the third frequency band are one of intra-frequency bands in relation to one another or inter-frequency bands in relation to one another. 
     
     
       12. The computer-readable medium of  claim 9 , wherein the first radio access technology comprises long term evolution (LTE) data service, the second radio access technology comprises a circuit-switched voice service and the third radio access technology comprises a high rate packet data service. 
     
     
       13. The computer-readable medium of  claim 9 , wherein the preferred delivery of the third radio access technology is compatible with a preferred delivery of the second radio access technology and the dual radio access capability of the access terminal. 
     
     
       14. The computer-readable medium of  claim 9 , further storing code that, when executed by the processor, causes the one or more computers to obtain at least one measurement for the second frequency band and at least one measurement for the third frequency band. 
     
     
       15. The computer-readable medium of  claim 9 , further storing code that, when executed by the processor, causes the one or more computers to:
 select a subset of the frequency bands specified in the first measurement request; and 
 obtain measurements for the subset of frequency bands specified in the first measurement request, and wherein the first measurement report comprises measurements for a subset of the plurality of frequency bands for which measurements have been requested in the first measurement request. 
 
     
     
       16. The computer-readable medium of  claim 15 , wherein the subset of the frequency bands specified in the first measurement request comprises a single frequency band. 
     
     
       17. A non-transitory computer-readable medium storing code that, when executed by a processor, causes one or more computers to:
 receive a request for a second radio access technology on a second frequency band, wherein accessing the second radio access technology causes a change in the capability of an access terminal to receive a first radio access technology; 
 receive a first measurement report from the access terminal; 
 select, utilizing the first measurement report, a third radio access technology on a third frequency band to replace the first radio access technology; and 
 initiate a concurrent handover from the first radio access technology to the second and third radio access technology, 
 wherein the second frequency band and the third frequency band are one of intra-frequency bands in relation to one another or inter-frequency bands in relation to one another. 
 
     
     
       18. A non-transitory computer-readable medium storing code that, when executed by a processor, causes one or more computers to:
 communicate via a first radio access technology on a first frequency band with an access point; 
 transmit a request for a second radio access technology provided on a second frequency band, wherein participating in the reception of the second radio access technology is not compatible with the capability of the access terminal to receive the first radio access technology; 
 obtain at least one measurement; 
 transmit a first measurement report to the access point, wherein the first measurement report comprises at least one measurement; and 
 receive a handoff initiation message, to initiate a concurrent handover from the first radio access technology to the second radio access technology and a third radio access technology on a third frequency band, from the access point, 
 wherein the second frequency band and the third frequency band are one of intra-frequency bands in relation to one another or inter-frequency bands in relation to one another.