Primary band selection by a carrier aggregation or dual connect aware communication device

Patent metadata

Field	Value
Publication number	US-12464582-B2
Application number	US-202217810648-A
Country	US
Kind code	B2
Filing date	Jul 5, 2022
Priority date	Jul 5, 2022
Publication date	Nov 4, 2025
Grant date	Nov 4, 2025

Abstract

A communication system incorporates a method and a computer program product that provide selecting and camping on primary band in idle mode in preparation for supporting an anticipated data connection for demanding application(s) to a network system. The communication system scans, using a radio frequency (RF) communication subsystem, available network node(s) to assess communication capacity. The communication system identifies a combination of a primary band and secondary band(s) of the available network node(s) that satisfies a communication demand requirement of data throughput, data latency, and/or data quality. The communication system selects and camps on the primary band in preparation for activation of the demanding application(s) and configuring the RF communication subsystem to use the secondary band(s) to operate in carrier aggregation and/or dual connection mode to satisfy the communication demand requirement in preparation for activation of the demanding application(s) and establishment of the data connection.

First claim

What is claimed is:

1 . A communication system comprising:
a memory that stores at least one application that, when activated, has a communication demand requirement comprising at least one of: (i) data throughput greater than a throughput threshold; (ii) data latency less than a latency threshold; and (iii) a level of quality; a radio frequency (RF) communication subsystem having more than one communication chain comprising at least a first communication chain and a second communication chain configurable to operate in at least one of carrier aggregation mode and dual connection mode to satisfy the communication demand requirement; and a controller communicatively coupled to the memory and the RF communication subsystem, and which:
in response to: (i) determining that the RF communication subsystem is not currently connected to one or more network nodes; and (ii) determining that the at least one application will require a data connection with a communication network:
scans, via components of the RF communication subsystem, one or more available network nodes to assess communication capacity;
identifies a combination of a primary band and at least one secondary band of the one or more available network nodes that satisfies the communication demand requirement; and
selects and camps on the primary band in preparation for activation of the at least one application and configures the RF communication subsystem to use the at least one secondary band in preparation for activation of the at least one application and for establishment of the data connection with the communication network.

2 . The communication system of claim 1 , wherein the controller:
scans, using the RF communication subsystem, the one or more available network nodes to identify signal strength and signal quality; identifies a default combination of a primary band and at least one secondary band of the one or more available network nodes that has a best combination of signal strength and signal quality; and in response to determining at least one of: (iii) the at least one application will not require a data connection with the communication network; and (v) the communication system is moving more than a threshold velocity, selects and camps on the primary band and configures the RF communication subsystem to use the at least one secondary band of the default combination in preparation for activation of the at least one application.

3 . The communication system of claim 1 , wherein the communication demand requirement is defined for two or more downlink signals received from the one or more network nodes.

4 . The communication system of claim 1 , wherein the communication demand requirement is defined for one or more uplink signals transmitted to the one or more network nodes.

5 . The communication system of claim 1 , wherein the communication demand requirement is defined for one or more uplink signals transmitted to the one or more network nodes and further comprises at least one of a second data throughput greater than a second throughput threshold and a second data latency less than a second latency threshold on a downlink channel received from the one or more network nodes.

6 . The communication system of claim 1 , further comprising a communication device and a head mounted display device that is supported by the at least one application, wherein the controller communicatively couples the communication device to the head mounted display device via one of a wireless, wired, and networked connection.

7 . The communication system of claim 1 , wherein the controller identifies the communication capacity of each combination of primary band and the at least one secondary band based on identifying one or more of: (i) a network-defined band priority; (ii) aggregate bandwidth;
(iii) number of channel component carriers; (iv) subcarrier spacing; and (v) support of higher frequency bands.

8 . The communication system of claim 1 , wherein the controller:
identifies from among multiple available combinations that satisfy the communication demand requirement, a first combination of the primary band and the at least one secondary band of the one or more network nodes that satisfies the communication demand requirement with a corresponding one or more of a highest value of the data throughput and a lowest value of the data latency; and in response to failing to select and camp on the primary band of the first combination:
identifies a second combination of a primary band and at least one secondary band of the one or more network nodes that best meets the communication demand requirement with a corresponding one or more of a next highest value of the data throughput and a next lowest value of the data latency; and
selects and camps on the primary band and configures the RF communication subsystem to use the at least one secondary band of the second combination.

9 . The communication system of claim 1 , wherein, to identify the communication capacity of each combination of primary band and the at least one secondary band, the controller:
tracks location and time of day of historical occurrences of attempting at least one of carrier aggregation and dual connection with particular combinations of primary band and at least one secondary band; identifies one or more of bandwidth, latency and quality capacity of the historical occurrences; and records the one or more of bandwidth, latency and quality capacity of the historical occurrence with an associated location and time of day for later referencing in assessing communication capacity.

10 . A method comprising:
in response to determining that: (i) a radio frequency (RF) communication subsystem of a communication system is not currently connected to one or more network nodes; and (ii) a trigger occurs indicating that at least one application stored in memory of the communication system will be activated and will require a data connection with a communication network:
scanning, using the RF communication subsystem, one or more available network nodes to assess communication capacity;
identifying a combination of a primary band and at least one secondary band of the one or more available network nodes that satisfies a communication demand requirement, which comprises at least one of: (i) data throughput greater than a throughput threshold;
data latency less than a latency threshold; and (iii) a level of quality, of the at least one application; and
selecting and camping on the primary band in preparation for activation of the at least one application and configuring the RF communication subsystem to use the at least one secondary band to operate in at least one of carrier aggregation mode and dual connection mode to satisfy the communication demand requirement in preparation for activation of the at least one application and establishment of the data connection with the communication network.

11 . The method of claim 10 , further comprising:
scanning, using the RF communication subsystem, the one or more available network nodes to identify signal strength and signal quality; identifying a default combination of a primary band and at least one secondary band of the one or more available network nodes that has a best combination of signal strength and signal quality; and in response to determining at least one of: (iii) the at least one application is will not require a data connection with the communication network; and (iv) the communication system is moving more than a threshold velocity, selecting and camping on the primary band and configuring the RF communication subsystem to use the at least one secondary band of the default combination in prepa

Assignees

• Motorola Mobility Llc

Inventors

• Chisu Daniel C
• Klomsdorf Armin W
• Chin Yui J

Classifications

• H04W72/542

  using measured or perceived quality · CPC title

• H04W72/02

  Selection of wireless resources by user or terminal · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W72/543

  based on requested quality, e.g. QoS · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title