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Method and apparatus for multi-radio coexistence

A technology of wireless unit and wireless communication, which is applied in the field of coexistence technology of multiple wireless devices, and can solve problems such as shortage, eNB power loop failure, and failure to solve UE uplink coexistence problems, etc.

Active Publication Date: 2015-08-19
QUALCOMM INC
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  • Abstract
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Problems solved by technology

Therefore, if the eNB uses RSRP reports to make handover decisions, a ping-pong effect of moving back and forth between the degraded channel and the desired channel may occur
[0011] Other unilateral actions on the part of the UE, such as simply stopping uplink communication, may cause power loop failure at the eNB without the cooperation of the eNB
Other problems present in conventional LTE include a general lack of ability on the part of the UE to suggest desired configurations as alternatives to configurations with coexistence issues
For at least these reasons, the uplink coexistence problem at the UE may remain unresolved for a longer period of time, degrading the performance and efficiency of other radio units of the UE

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  • Method and apparatus for multi-radio coexistence
  • Method and apparatus for multi-radio coexistence
  • Method and apparatus for multi-radio coexistence

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Embodiment Construction

[0028] Aspects of the present disclosure provide techniques to alleviate coexistence issues in multi-radio devices, where severe in-device coexistence issues can exist, for example, between LTE bands and Industrial, Scientific, and Medical (ISM) bands (e.g., for BT / WLAN). As mentioned above, certain coexistence issues persist because the eNB is unaware of the interference experienced by other wireless units on the UE side. According to one aspect, if there is a coexistence problem on the current channel, the UE declares radio link failure (RLF) and autonomously accesses a new channel or radio access technology (RAT). In some examples, a UE may declare RLF for the following reasons: 1) UE reception is affected by interference due to coexistence; and 2) UE transmitter is causing destructive interference to another wireless unit. Subsequently, the UE sends a message to the eNB indicating the coexistence problem while re-establishing the connection in a new channel or RAT. As a...

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Abstract

Interference between potentially conflicting radio access technologies (RATs) in a wireless device may be managed through a coexistence manager. The coexistence manager allows a first active RAT to yield conflicting resources to a second idle RAT for purposes of receiving signals to allow proper operation by the second RAT. These signals may be, for example, paging signals to a Long Term Evolution (LTE) radio or beacons to a wireless local area network (WLAN) radio.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Patent Application no. 61 / 319,123, filed March 30, 2010, entitled "LTE AND WLAN COEXISTENCE SOLUTIONS," the disclosure of which is expressly incorporated herein by reference. technical field [0003] Generally speaking, this specification relates to multi-radio technology, and more specifically, to the coexistence technology of multi-radio devices. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, data, and so on. These systems may be multiple-access systems capable of supporting communication with multiple users by sharing available system resources (eg, bandwidth and transmit power). Examples of such multiple access systems include Code Division Multiple Access (CDMA) systems, Time Division Multiple Access (TDMA) systems, Frequency Division Multiple Access (FDMA) systems,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14
CPCH04W16/14H04W88/06H04W52/02H04W72/12
Inventor J·王J·B·林斯基T·A·卡道斯A·曼特拉瓦迪P·达亚尔
Owner QUALCOMM INC