Systems and methods for acquiring service using multiple channels

• US 9,408,245 B2
• Filed: 10/30/2013
• Issued: 08/02/2016
• Est. Priority Date: 10/30/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Bodduru, Appala Naga Raju, Babbadi, Venkata Appala Naidu, Narlengi, Kondal Reddy, Gupta, Rahul
• Primary Examiner(s): Elhag, Magdi
• Assistant Examiner(s): ORANGE, DAVID BENJAMIN
• Application Number:
  US14/067,636
• Publication Number:
  US 20150119026A1
• Time in Patent Office: 1,007 Days
• Field of Search: 455/434
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0825 with main and with auxiliary or diversity antennas
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 48/18 Selecting a network or a communication service
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/16 Involving different core network technologies, e.g. a packet-switched [PS] bearer in combination with a circuit-switched [CS] bearer
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The present disclosure includes systems and methods for acquiring service using multiple channels. In one embodiment, the present invention includes a method comprising successively configuring a first wireless communication channel and a second wireless communication channel of a single wireless apparatus to receive a plurality of signal frequencies of one or more radio communication protocols. The first wireless communication channel is configured to receive different signal frequencies of the plurality of signal frequencies than the second wireless communication channel. The first wireless communication channel and the second wireless communication channel process the plurality of signal frequencies in parallel to establish a service connection.

Claims

1. A method comprising:

on a single wireless apparatus, configuring a primary receiver having an input coupled to a primary antenna and a diversity receiver having an input coupled to a diversity antenna to process a plurality of different radio communication protocols received on the primary receiver and the diversity receiver to establish a service connection, said processing comprising, for each radio communication protocol;

generating compensation factors, the compensation factors corresponding to detected energy levels for a first plurality of signal frequencies of a first radio communication protocol of the plurality of different radio communication protocols, wherein generating the compensation factors comprises,

re-configuring the primary receiver and the diversity receiver to simultaneously receive one or more external RF signals having the same frequency, and

detecting each of the external RF signals having the same frequency to produce one or more first detected energy levels for the primary receiver and one or more second detected energy levels for the diversity receiver;

configuring the primary receiver and the diversity receiver of the single wireless apparatus to simultaneously receive a second plurality of signal frequencies of the first radio communication protocol, wherein the primary receiver is configured to receive different signal frequencies of the second plurality of signal frequencies than the diversity receiver;

detecting a plurality of third energy levels of the second plurality of signal frequencies received at the primary receiver and the diversity receiver;

modifying the third detected energy levels from one of the primary receiver or the diversity receiver for different path losses based on a difference between the first detected energy levels and the second detected energy levels to produce compensated energy levels; and

establishing the service connection based on the compensated energy levels using one of

the compensated energy levels from the primary receiver and the third detected energy levels from the diversity receiver, or

the compensated energy levels from the diversity receiver and the third detected energy levels from the primary receiver.

2. The method of claim 1 wherein successively configuring comprises:

configuring the primary receiver to receive a first signal frequency of the second plurality of signal frequencies;

configuring the diversity receiver to receive a second signal frequency of the second plurality of signal frequencies, wherein the second signal frequency is different than the first signal frequency;

simultaneously processing the first signal frequency in the primary receiver and the second signal frequency in the diversity receiver;

performing the configuring the primary receiver step for a first portion of signal frequencies of the second plurality of signal frequencies, performing the configuring the diversity receiver step for a second portion of signal frequencies of the second plurality of signal frequencies, and repeating the simultaneously processing step for each of the first and second portion of frequencies.

3. The method of claim 1 wherein detecting each of the external RF signals having the same frequency comprises:

sampling each of the signals having the same frequency in the primary receiver and the diversity receiver to produce a first plurality of samples in the primary receiver and a second plurality of samples in the diversity receiver; and

generating averages of the first plurality of samples and the second plurality of samples for each of the signals having the same frequency.

4. The method of claim 1 wherein the primary receiver processes a first band of the first radio communication protocol and the diversity receiver processes a second band of the first radio communication protocol.

5. The method of claim 1 wherein the first plurality of signal frequencies are different than the second plurality of signal frequencies and wherein the first and second pluralities of signal frequencies are a plurality of channels in a single frequency band.

6. The method of claim 5 wherein the plurality of channels comprise all the channels of the single frequency band.

7. The method of claim 1 further comprising storing the compensated energy levels from the one of the primary receiver or the diversity receiver and the third detected energy levels from the other one of the primary receiver or the diversity receiver in a ranked list, wherein establishing the service connection comprises searching from the top of the list.

8. The method of claim 1 wherein the primary receiver and the diversity receiver comprise a single baseband processor configured to process the plurality of different radio communication protocols.

9. An apparatus comprising:

a primary receiver having an input coupled to a primary antenna;

a diversity receiver having an input coupled to a diversity antenna, wherein the primary receiver and the diversity receiver are part of a single wireless apparatus; and

a processor,

wherein the primary receiver and the diversity receiver are configured to process a plurality of different radio communication protocols received on the primary receiver and the diversity receiver to establish a service connection, said processing comprising, for each radio communication protocol;

generating compensation factors, the compensation factors corresponding to detected energy levels for a first plurality of signal frequencies of a first radio communication protocol of the plurality of different radio communication protocols, wherein generating the compensation factors comprises,

re-configuring the primary receiver and the diversity receiver to simultaneously receive one or more external RF signals having the same frequency, and

detecting each of the external RF signals having the same frequency to produce one or more first detected energy levels for the primary receiver and one or more second detected energy levels for the diversity receiver;

configuring the primary receiver and the diversity receiver of the single wireless apparatus to simultaneously receive a second plurality of signal frequencies of the first radio communication protocol, wherein the primary receiver is configured to receive different signal frequencies of the second plurality of signal frequencies than the diversity receiver;

detecting a plurality of third energy levels of the second plurality of signal frequencies received at the primary receiver and the diversity receiver;

modifying the third detected energy levels from one of the primary receiver or the diversity receiver for different path losses based on a difference between the first detected energy levels and the second detected energy levels to produce compensated energy levels; and

establishing the service connection based on the compensated energy levels using one of

the compensated energy levels from the primary receiver and the third detected energy levels from the diversity receiver, or

the compensation energy levels from the diversity receiver and the third detected energy levels from the primary receiver.

10. The apparatus of claim 9 wherein the processor is configured to:

configure the primary receiver and the diversity receiver to sample each of the signals having the same frequency in the primary receiver and the diversity receiver to produce a first plurality of samples in the primary receiver and a second plurality of samples in the diversity receiver; and

generate averages of the first plurality of samples and the second plurality of samples at each of the signals having the same frequency.