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Co-existing interference avoiding method and device

A technology of coexistence interference and connection reconfiguration, applied in connection management, wireless communication, electrical components, etc., can solve problems such as performance impact, and achieve the effect of avoiding coexistence interference

Inactive Publication Date: 2012-03-14
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this depends on whether the user terminal is configured with interference-related measurement, and even if the measurement is configured, there are many restrictions on the measurement in the existing mechanism, such as the measurement must be filtered by layer 3 and whether it is satisfied within a certain delay time The measurement report is only reported after the measurement trigger condition, so this will have a great impact on performance

Method used

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  • Co-existing interference avoiding method and device
  • Co-existing interference avoiding method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] WLAN and LTE coexist in the user terminal, LTE Cell1 uses a frequency band of 2380M-2400M, and LTE Cell2 uses a frequency band of 2300M-2320M. Two cells have the same coverage, such as image 3 shown. The UE's current serving cell is Cell1, which is in a radio resource control (RRC) connected state. When the UE's WLAN is transmitting and the UE's LTE unit is receiving, it will cause strong interference to the reception of the LTE unit; or when the LTE unit is transmitting and the WLAN unit is receiving, it will cause strong interference to the reception of the WLAN unit interference. In order to avoid coexistence interference between WLAN and LTE, for the LTE side, when it is detected that WLAN is working or WLAN is transmitting, the following steps are taken to avoid coexistence interference between WLAN and LTE on the terminal side, as follows: Figure 4 As shown, specifically:

[0089] Step 401: The UE detects that the WLAN is working or the WLAN is transmitting,...

Embodiment 2

[0095] Bluetooth and LTE coexist in the user terminal. LTE Cell1 uses the 2380M-2400M frequency band, and LTECell2 uses the 2300M-2320M frequency band. The two cells are adjacent cells, such as Figure 5 As shown, Cell1 is a cell of base station 1, and Cell2 is a cell of base station 2. The current serving cell of the UE is Cell1, which is in the RRC connection state. When the UE's Bluetooth transmits and the UE's LTE unit is receiving, it will cause strong interference to the reception of the LTE unit; or when the LTE unit transmits and the Bluetooth unit is receiving, it will cause strong interference to the reception of the Bluetooth unit. interference. In order to avoid coexistence interference between Bluetooth and LTE, for the LTE side, when it is detected that Bluetooth is working or Bluetooth is transmitting, the following steps are taken to avoid coexistence interference between Bluetooth and LTE on the terminal side, such as Image 6 As shown, specifically:

[009...

Embodiment 3

[0107] Bluetooth and LTE coexist in the user terminal, the uplink of LTE Cell1 uses the 2500M-2520M frequency band, and the uplink of LTE Cell2 uses the 1920M-1940M frequency band. Two cells are adjacent cells, such as Figure 7 shown. The current serving cell of the UE is Cell1, which is in the RRC connection state. When the UE's Bluetooth transmits and the UE's LTE unit is receiving, it will cause strong interference to the reception of the LTE unit; or when the LTE unit transmits and the Bluetooth unit is receiving, it will cause strong interference to the reception of the Bluetooth unit. interference. In order to avoid coexistence interference between Bluetooth and LTE, for the LTE side, when it is detected that Bluetooth is working or Bluetooth is transmitting, the following steps are taken to avoid coexistence interference between Bluetooth and LTE on the terminal side, such as Figure 8 As shown, specifically:

[0108] Step 801: The UE detects that Bluetooth is work...

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Abstract

The invention relates to a co-existing interference avoiding method and a device, which are used for solving the technical problem that the co-existing interference happens in user equipment (UE) on which multiple wireless technologies coexist. When co-existing interference is detected on the UE, a base station is allowed to know the co-existing interference at the UE side by transmitting a co-existing interference indication or switching a request message, so the UE is switched to a pilot-frequency neighboring region; or the base station ensures that the UE is selectively switched to the pilot-frequency neighboring region according to a reported measurement report by modifying a measuring configuration parameter; or the UE is directly re-connected to the pilot-frequency neighboring region satisfying the access condition through the pilot-frequency measurement. Due to the adoption of the method and the device, the UE is reselected to the pilot-frequency neighboring region so as to avoid the co-existing interference.

Description

technical field [0001] The present invention relates to the field of mobile communication, in particular to an interference avoidance method and device when coexistence interference exists between systems. Background technique [0002] Due to the emergence of intelligent user terminals (User Equipment, UE), there will be multiple wireless technologies coexisting in one device, such as WLAN (Wireless Local Area Networks, wireless local area network) and LTE (Long Term Evolution, long-term evolution) in one device ) coexist (such as figure 1 shown), or coexistence of LTE and Bl tooth (Bluetooth). Each wireless technology has its own frequency band, such as figure 2 As shown: the ISM (Industrial Science Medical) frequency band used by WLAN and Bluetooth is between 2420M and 2483.5M, and the frequency bands around this frequency band are allocated to LTE. For example, 2300M~2400M is allocated to LTE band 40, and 2500M~2570M is allocated to LTE band7 uplink. [0003] When tw...

Claims

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Application Information

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IPC IPC(8): H04W16/14H04W36/14H04W76/02
Inventor 汪孙节
Owner ZTE CORP
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