Google Inc.

Apple Inc.

Qin Zhang

Longda Xing

Shivank Nayak

Rukun Mao

Madhusudan Chaudhary

Jibing Wang

Erik Richard Stauffer

Zhiwei Wang

Qiang Miao

Siddharth Ray

Yaoqi Yan

Abhishek Sen

Umesh K Shukla

Bo Wang

Yu-Cheng Chen

Yifan Zhu

Xu Ou

Ben-Heng Juang

Mahesh Devdatta Telang

Ravi Ayyappan

Lynn Lu

Meng-Hau Wu

Srinivas Vangaru

Zong Syun Lin

Yi-Hua Li

A User Equipment (UE) () supports a plurality of RF bands () associated with a plurality of country codes. The UE () reduces the entirety of the set of UE-supported RF bands () based on a current, physical location () of the UE (), and the UE () advertises only the reduced set of UE-supported RF bands to a network or wireless communication system (), e.g., for attachment purposes. For example, the UE () may reduce the entirety of the set of RF bands that it supports () based on a country code provided by a base station () of a network () and the physical location () of the UE (), thereby generating a reduced set of UE-supported RF bands. Subsequently, the UE () may advertise only the reduced set of RF bands supported by the UE (), and refrain from advertising one or more RF bands excluded from the reduced set, e.g., by omitting any indication of the excluded RF bands from advertisements.

Method of reducing advertised RF band

A UE performs up to a threshold number of attempts to transmit a default capability message to a base station, the default capability message representing a default set of CA combinations supported by the UE. If transmission is unsuccessful, the UE switches to a compact capability mode in which the UE attempts to transmit compacted UE capability messages representing successively smaller subsets of the default set of CA combinations until either a capability message is successfully received by the base station or a second threshold number of unsuccessful transmission attempts is performed. To facilitate configuration of an initial compacted capability message, the UE maintains a PC list that lists one or more cells that have been identified previously as incapable of receiving default-sized capability messages and that further identifies a representation of a limited subset of CA combinations to include in capability messages sent to a corresponding listed cell.

Adaptive UE capability message compaction

The subject matter described herein provides systems and techniques to automatically configure a proximal device, such as a smart watch, a tablet, or any other smart device, based on configuration information sent from the user equipment (UE) to the proximal device when the local communications connection, such as a wireless connection, between the devices is weak. If it is determined that there is a weak local communications connection between the UE and the proximal device the UE may automatically send network configuration information to the proximal device. If it is determined that there is a weak local communications connection between the UE and the proximal device the UE may automatically turn on its mobile hotspot, and automatically send the mobile hotspot configuration information to the proximal device.

Enhancement on smartwatch implementation

Apparatus and methods related to acquiring service on mobile computing devices (MCDs) are provided. A method includes determining a decreasing sequence of scan ratios, each scan ratio indicating a proportion of time over which a MCD scans one or more frequencies to attempt connection with a wireless network during a disconnected time window. The method further includes determining a connected time window' when the MCD is connected to the wireless network. The method additionally includes determining a ping-pong rate for the MCD based at least on a duration of the connected time window. The method also includes selecting a scan ratio from the decreasing sequence of scan ratios based on the ping-pong rate. The method further includes scanning the one or more frequencies in accordance with the decreasing sequence of scan ratios and starting from the selected scan ratio to cause the MCD to attempt connection with the wireless network.

Power optimization for frequent service loss

At switch-on or when recovering from lack of coverage, a UE determines first frequency bands corresponding to an initial MCC of a country in which the UE currently is located (). The frequency bands include a first set of frequency bands associated with a network carrier to which the UE is subscribed and a second set of frequency bands not associated with the network carrier (). The UE scans the first set of frequency bands (). In response to detecting a new MCC and determining that no service is available within the first set of frequency bands (), the UE scans a third set of frequency bands preferred by the UE within a second plurality of frequency bands corresponding to the new MCC (). In response to determining that no service is available within the third set of frequency bands, the UE scans the second set of frequency bands ().

Frequency band scan in user equipment

The present disclosure describes apparatuses and techniques of adaptive PLMN management for varying network conditions. In some aspects, a PLMN manager of a user equipment (UE) searches, as part of a registration procedure, a data repository of PLMN information that includes a PLMN blocked from registration for a duration of time and determines that the PLMN is blocked due to a signal-related condition with a cell of the PLMN (e.g., weak signal). The PLMN manager then determines, during the duration of time, that the signal-related condition between the UE and the cell has improved. In response to the improvement, the PLMN manager unblocks the PLMN before expiration of the duration of time. By so doing, the UE may reattempt registration with the unblocked PLMN at least once before the duration of time expires, which may allow the UE to register more quickly and reestablish network services.

Adaptive public land mobile network management for varying network conditions

Methods, systems, and devices for wirelessly scanning frequency bands based on device location and/or mobility are presented. The method can include (i) scanning, by a mobile device and according to a first wireless scanning protocol, frequencies within first frequency bands that correspond to a first geographic region and second frequency bands that correspond to a second geographic region; (ii) determining at least one of an estimated location or an estimated mobility characteristic of the mobile device; (iii) determining, based on at least one of the estimated location or the estimated mobility characteristic, to adjust a scheduled time for the mobile device to initiate scanning according to a second wireless scanning protocol; (iv) and initiating at the scheduled time, scanning according to the second wireless scanning protocol.

Scanning frequency selection for a wireless device

Described herein are apparatus, systems and methods for enhanced PLMN selection using priority class information. A method may comprise, at a user equipment ('UE'), identifying a plurality of networks, each network having an assigned priority class indicator, identifying a first network of the plurality of networks as having a first priority class indicator, identifying a second network of the plurality of networks as having the first priority class indicator, identifying the first priority class indicator as the highest priority class of the assigned priority class indicators, and selecting between the first network and the second network based a quality characteristic.

Apparatus, systems and methods for network selection with priority class

Generating and using a device-type specific preferred public land mobile network (PLMN) list for roaming PLMN selection. Wireless devices sharing one or more common characteristics may be tasked with collecting roaming PLMN selection data. That data may be collected and used to generate a preferred PLMN list specific to wireless devices sharing those common characteristics. The preferred PLMN list may be distributed to wireless devices sharing those common characteristics, which may then use it in conjunction with roaming PLMN selection.

Device-type specific preferred PLMN list

A processor in a mobile wireless device communicates detailed state information about attachments to a user identity module card embedded in the mobile wireless device. The processor detects a change in an attach state of the mobile wireless device for at least one of a plurality of attachment types. The processor determines the attach state of the mobile wireless device for each of the plurality of attachment types and sends a status message to the user identity module card indicating the determined attach states. The plurality of attachment types can include at least a circuit switched attachment and a packet switched attachment. The processor can wait until completion of circuit switched and packet switched attachments of the mobile wireless device to the wireless network prior to sending the status message.

Extension of location status event

Apparatuses, systems, and methods for user equipment (UE) devices to determine that it does not have cellular service and perform one or more searches for a mobile country code (MCC). The searches may include searches based on cellular modes, radio access technologies (RATs), and/or cellular bands. The UE may determine the MCC based on results of the one or more searches and perform a targeted service acquisition search based on, and limited by, the MCC. The MCC may be associated with one or more cellular modes, RATs, and/or cellular bands via a data structure that maps the MCC to the one or more cellular modes, RATs, and/or cellular bands. The targeted service acquisition search may include at least one RAT and one or more cellular bands within the at least one RAT associated with the MCC.

Mobile device with improved service acquisition with early MCC detection

A method and apparatus for a mobile wireless device configured to adaptively scan for a preferred wireless network while roaming is described. In one embodiment, at least a portion of a database including characteristic information regarding wireless networks can be stored within the mobile wireless device. Network characteristic information can include mobile country codes, mobile network codes, location area codes and cell-IDs. When the mobile wireless device is connected to a network that is not a preferred network, the mobile wireless device can use the database information in conjunction with characteristics from a connected wireless network to determine when to scan for the preferred wireless network.

Growing community of inventors

Mountain View, CA, United States of America

Qin Zhang