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Method of in-device interference mitigation for cellular, bluetooth, wifi, and satellite systems coexistence

A technology of wireless devices and bluetooth modules, applied in transmission systems, short-distance communication services, power management, etc. Design and other issues

Inactive Publication Date: 2012-06-20
HFI INNOVATION INC
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  • Description
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Problems solved by technology

[0008] In addition to imperfect TX filter and RF design, imperfect RX filter and RF design can also cause unacceptable in-device coexistence interference
For example, due to incompletely filtered transmit power from another device's transceiver, multiple RF components may become saturated, resulting in low noise amplifier (Low Noise Amplifier, hereinafter referred to as LNA) saturation and analog-to-digital conversion The Analog to Digital Converter (hereinafter referred to as ADC) does not work properly

Method used

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  • Method of in-device interference mitigation for cellular, bluetooth, wifi, and satellite systems coexistence
  • Method of in-device interference mitigation for cellular, bluetooth, wifi, and satellite systems coexistence
  • Method of in-device interference mitigation for cellular, bluetooth, wifi, and satellite systems coexistence

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Embodiment Construction

[0024] Reference will be made in detail to various embodiments of the invention, and the accompanying drawings are made to illustrate embodiments of the invention.

[0025] image 3 A user equipment UE 31 having multiple radio transceivers in a wireless communication system 30 is described in terms of novel aspects. The wireless communication system 30 includes a user equipment UE 31 , a serving base station (eg, evolved Node B) eNB 32 , a Wi-Fi access point WiFi AP 33 , a Bluetooth device BT 34 and a global positioning system satellite device GPS 35 . The wireless communication system 30 provides various network access services for the UE 31 via different radio access technologies. For example, the eNB 32 provides an Orthogonal Frequency Division Multiple Access (OFDMA-based) cellular radio network (for example, a third Generation Partnership Project (3GPP) LTE or LTE-A system) access, WiFi AP 33 provides regional range in WLAN access, BT 34 provides short-range personal net...

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Abstract

A coexistence interference mitigation method is provided. In a wireless network, a wireless device is equipped with multiple radios in the same device platform. The wireless device also has a control entity that communicates with the multiple co- located radio modules. A first radio module receives a notification from the control entity. The notification informs a critical signaling status of a second radio module co-located with the first radio module. Upon receiving the notification, the first radio module stops uplink transmission due to coexistence interference and transmits a coexistence indicator to its serving eNB. After a certain period, the first radio module receives a second notification that informs a completion status of the critical signaling of the second radio module. Upon receiving the second notification, the first radio module resumes uplink transmission and transmits a coexistence resume indicator to the eNB.

Description

[0001] Cross References to Related Applications [0002] This application claims the following priority under 35 U.S.C. §119: U.S. Provisional Application No. 61 / 373,142, filed August 12, 2010, entitled "Method to Trigger In-Device Coexistence Interference Mitigation in Mobile Cellular Systems" ; U.S. Provisional Application No. 61 / 373,151, filed August 12, 2010, entitled "Method of In-Device Interference Mitigation for Cellular, Bluetooth. WiFi and Satellite Systems Coexistence"; No. 61 / 374,046, application U.S. Provisional Application, dated August 16, 2010, entitled "Method of In-Device Interference Mitigation for Wireless Systems"; Serial No. 61 / 374,052, filed August 16, 2010, entitled "Method of In-Device Interference Mitigation for Wireless Systems"; -U.S. provisional application for Device Interference Avoidance for wireless Systems. The subject matter of the above application is hereby incorporated by reference. technical field [0003] The embodiments disclosed in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/00H04B1/38H04W4/80
CPCH04B15/00H04B1/406H04B1/1027H04B1/525H04W52/244H04W4/80H04W76/28H04B1/48H04B2001/485H04W72/0473H04W88/06
Inventor 傅宜康威廉·普拉柏
Owner HFI INNOVATION INC
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