US-20260129693-A1 - DESIGN METHOD TO CONTROL 5G WIFI COEXISTENCE INTERFERENCE TO IMPROVE DATA RATE

US20260129693A1US 20260129693 A1US20260129693 A1US 20260129693A1US-20260129693-A1

Abstract

A mobile communication device is provided that includes a first radio configured to process a first signal in a first frequency band. It also includes a second radio configured to process a second signal in a second frequency band, wherein the first frequency band and the second frequency band are overlapping at least in part. The communication device also includes an antenna-plexer circuit coupled to the first radio and the second radio, the antenna-plexer circuit including at least one shared antenna to send the first signal and the second signal, the antenna-plexer circuit further including a combining circuit coupling the first radio and the second radio with the shared antenna, wherein the combining circuit includes at least one bulk acoustic wave filter configured as a band rejection filter having an attenuation slope having an amount of at least about 0.15 dB/MHz at the cut-off frequency.

Inventors

Sourav Saha
Naveen Manohar
Sarat CHINTAMANI
Barath C. PETIT
Suranjan CHAKRABORTY
Ruchi Sitaram Padekar
Maruti Tamrakar
Anoob Anto KODANKANDATH
Amit Singh CHANDEL
Abhijith Prabha
Jay Vishnu Gupta
ANSHU AGARWAL
Harish Mitty
Jayprakash Thakur
RISHAV DEV
Chandrashekar GOWDA
Mythili HEGDE
Arun JAGADISH
Manjunath Kamath

Assignees

INTEL CORPORATION

Dates

Publication Date: 20260507
Application Date: 20230928
Priority Date: 20221108

Claims (20)

1 . A device comprising: a first radio configured to process a first signal in a first frequency band; a second radio configured to process a second signal in a second frequency band, wherein the first frequency band and the second frequency band are overlapping at least in part; and an antenna-plexer circuit, coupled to the first radio and the second radio, the antenna-plexer circuit comprising: at least one shared antenna to send the first signal and the second signal; and a combining circuit coupling the first radio and the second radio with the at least one shared antenna, wherein the combining circuit comprises at least one bulk acoustic wave filter configured as a band rejection filter having an attenuation slope having an amount of at least about 0.15 dB/MHz at a cut-off frequency of the band rejection filter.
2 . The device of claim 1 , wherein the first radio is a WiFi radio and the second radio is a 5G radio.
3 . The device of claim 1 , wherein the first frequency band and the second frequency band comprise one or more frequency bands in a range from about 2.4 GHz to about 7 GHZ, respectively.
4 . The device of claim 1 , wherein the combining circuit comprises a quadplexer, the quadplexer comprising an antenna port coupled to the at least one shared antenna, a first radio port coupled to the first radio and a second radio port coupled to the second radio.
5 . The device of claim 1 , wherein the combining circuit comprises a first diplexer coupling the at least one shared antenna to the first radio and the second radio, and a second diplexer coupling at least one second shared antenna to the first radio and the second radio.
6 . The device of claim 5 , wherein each of the first diplexer and the second diplexer comprises at least one bulk acoustic wave filter configured as a band rejection filter having an attenuation slope having an amount of at least about 0.15 dB/MHz at the cut-off frequency.
7 . The device of claim 5 , wherein the first diplexer comprises a band pass filter and a band stop filter, wherein the band stop filter is configured to pass signals having frequency except a predetermined frequency band and the band pass filter is configured to pass signals having the predetermined frequency band.
8 . The device of claim 1 , further comprising a coexistence management circuit, wherein the combining circuit comprises a radio frequency switch coupled to each of the at least one antenna, the first radio, the second radio and the coexistence management circuit, wherein the coexistence management circuit is configured to control the radio frequency switch depending on the frequencies of the first signal and the second signal.
9 . The device of claim 8 , comprising a first band rejection filter coupling the first radio with the radio frequency switch, and a second band rejection filter coupling the second radio with the radio frequency switch.
10 . The device of claim 8 , wherein the radio frequency switch is configured to: couple the first radio to the at least one shared antenna; couple the second radio to the at least one shared antenna; couple each of the first radio and the second radio to the at least one shared antenna; and couple none of the first radio and the second radio to the at least one shared antenna.
11 . The device of claim 1 , further comprising a processor configured to: generate a hash key; send the hash key using a class 2 message in a cellular wireless wide area network (WWAN) to a terminal communication device; receive an acknowledge message from the terminal communication device; and after having received the acknowledge message, provide an access for the communication device to a physical memory of the terminal communication device.
12 . The device of claim 1 , further comprising a processor configured to: receive, in a reduced power mode, a class 2 message in a 3GPP wireless wide area network from a terminal communication device, the class 2 message comprising a hash key, and the reduced power mode comprises a first number of active antennas of the communication device; verify the hash key; activate, after having verified the hash key, an active mode of the communication device, the active mode comprising a second number of active antennas of the communication device, wherein the second number is larger than the first number; and send an acknowledge message to the terminal communication device to allow a provide an access for the terminal communication device to a physical memory of the communication device.
13 . The device of claim 1 , further configured to: determine a quality of a first wireless communication link between another communication device and a radio network; provide a second wireless communication link between the other communication device and the communication device when the determined quality of the first wireless communication link falls below a predetermined threshold value; and establish a third wireless communication link between the communication device and the radio network or another radio network, to thereby establish a communication connection between the other communication device and the radio network or the other radio network, wherein the communication connection comprises the second wireless communication link and the third wireless communication link.
14 . An apparatus comprising: a means for generating a hash key in a first communication means; a means for transmitting the hash key using a class 2 message in a cellular wireless wide area network to a second communication means; a means for verifying the hash key in the second communication means; a means for acknowledging the verified hashed key to the first communication means; a means for upgrading the number of active antennas in the second communication means; and a means for generating an access for the first communication means using a physical memory provided by the second communication means.
15 . The apparatus of claim 14 , wherein the hash key is a unique hash key that is at least in part of a 3GPP wireless wide area network.
16 . The apparatus of claim 14 , wherein the hash key is based on a personal user information.
17 . The apparatus of claim 16 , wherein the personal user information includes at least one of a password, gesture, face print, and fingerprint.
18 . The apparatus of claim 14 , wherein the hash key is generated in a software application, and the apparatus further comprises a means for logging in the software application before or after the means for acknowledging acknowledges the verified hashed key to the first communication means.
19 .- 25 . (canceled)
26 . A wireless communication system comprising: a first wireless communication device configured to: establish a first wireless communication link between the first wireless communication device and a first radio network; and establish a second wireless communication link between the first wireless communication device and a second communication device; and a second wireless communication device configured to: establish a third wireless communication link between the second wireless communication device and the first radio network or a second network; and provide the second wireless communication link between the second wireless communication device and the first communication device, wherein the second wireless communication device is configured to determine a quality of the first wireless communication link, and to provide the second wireless communication link when the determined quality of the first wireless communication link falls below a predetermined threshold value to thereby establish a communication connection between the first wireless communication device and the first radio network or the second radio network, wherein the communication connection includes the second wireless communication link and the third wireless communication link.

Description

CROSS-REFERENCE TO RELATED APPLICATION(S) This application claims priority to European Patent Application Number EP22 206 081.6, filed on Nov. 8, 2022, the contents of which are fully incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to communications between multiple communication devices having multiple radios. BACKGROUND With the current hybrid working model, more and more people are working from home where connection is not robust and often a need arise to switch to other connectivity sources. Wireless network connectivity instability often results in bad user experience and the need for an end-user to manually switch to an alternate (wireless) network. Mobile hotspots are usual alternatives for wireless connectivity in case primary connection is at fault. Existing solutions for wireless connectivity aim at providing instant hotspots by manual intervention or with a need of maintaining a dedicated polling/scanning, e.g. persistent Bluetooth (BT) or WiFi peer-to-peer (P2P) connections. Instant hotspots allow a mobile communication device to switch to the hotspot of another mobile communication device on disconnection from a primary network. However, a drawback of this instant hotspot feature is that it relies on the mobile communication devices to be in constant Bluetooth (BLE) advertising and scanning state while waiting for loss of primary connectivity of the mobile communication device thereby not being power efficient. Thus, existing solutions are not power optimized and seamless. Further, in mobile communication devices using WiFi and 5G (5th generation of 3GPP (3rd Generation Partnership Project) wireless wide area network (WWAN) communication) communications there is de-sense issue in WiFi channel throughput due to interference from 5G adjacent bands. The 2.4 GHz WiFi channel is adjacent to the n41, n40 and n7 bands of the 5G spectrum, while the n79 band of the 5G spectrum is adjacent to the 5 GHz WiFi. De-sense happens due to poor isolation between antennas at adjacent bands of both radios (5G & WiFi). Due to the proximity of cellular and WiFi channels in the 2.4 GHz spectrum and the 5 GHz spectrum, utilization of WiFi and 5G spectrums can cause interference during operation. This may pose serious interference threats due to transmit (Tx) leakage and Adjacent Channel Leakage Ratio (ACLR) in respective bands. This can greatly impact data rates. In addition, there is the potential risk of hardware damage due to high power signals reaching receive (Rx) paths. Existing recommendations and guidelines implement bulk acoustic wave (BAW) filter at WiFi front end for rejection at adjacent bands. However, current BAW filter adds insertion loss of 2-3 dB in the WiFi path. Further used is a coexistence manager that can send commands to not to operate both radios (5G & WiFi) at the same or adjacent channels. Further, in current applications, multiple communication devices and multiple hard discs can connect for content sharing, e.g. photos, documents, within closed group irrespective of the physical location of a user. However, currently, there is no single solution for easily and remotely accessing any contents across the multiple devices using wireless communication links. That is, devices have to be physically in close vicinity to get access to the contents of the device. BRIEF DESCRIPTION OF THE DRAWINGS In the drawings, like reference characters generally refer to the same parts throughout the different views. The drawings are not necessarily to scale, emphasis instead generally being placed upon illustrating the principles of the invention. In the following description, various embodiments of the invention are described with reference to the following drawings, in which: FIGS. 1A to 1C show schematic diagrams of wireless communication systems; FIG. 2 shows a frequency diagram of a wireless communication system; FIGS. 3A to 3D show schematic diagrams of wireless communication systems; FIGS. 4A to 4B show schematic diagrams of wireless communication systems; FIGS. 5A to 5B show schematic diagrams of wireless communication systems; and FIGS. 6A to 6C show schematic diagrams of wireless communication systems. DESCRIPTION The following detailed description refers to the accompanying drawings that show, by way of illustration, specific details and embodiments in which the invention may be practiced. The word “exemplary” is used herein to mean “serving as an example, instance, or illustration”. Any embodiment or design described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments or designs. This disclosure addresses various scenarios for improving the user experience of mobile communication devices relying on different communication links between various communication devices, e.g. WiFi communication in combination with a Bluetooth communication and/or a 3GPP wireless wide area network (WWAN) communication. The various des