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Method for sending and receiving signals of a mobile device

A technology for signal sending and receiving and mobile devices, applied in the field of signal sending and receiving of mobile devices, to achieve the effect of improving performance

Active Publication Date: 2016-06-01
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In view of this, the present invention proposes a mobile device signal transceiving method to solve the same-channel interference, high-speed rail scene signal resonance cancellation, and Doppler frequency shift sharp jump caused by the mobile device's N-frequency point networking and HST coverage. The problem of realizing accurate signal transmission and reception under changing conditions

Method used

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  • Method for sending and receiving signals of a mobile device
  • Method for sending and receiving signals of a mobile device
  • Method for sending and receiving signals of a mobile device

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0065] The implementation scenario of this preferred embodiment is that the UE is located at the edge of a cell under N-frequency point networking, and there are two cells CELL1 and CELL2 within the receiving range of the UE.

[0066] The overall process of this embodiment is attached figure 1 Shown:

[0067] 1. The UE sets at least two directional transceiving channels covering different spatial ranges, and the directional transceiving channels together cover the omnidirectional transceiving spatial range of the mobile device;

[0068] In this embodiment, the number of directional transceiver channels is 3, corresponding to the channel numbers 1, 2, and 3, and the space ratios occupied in omnidirectional coverage are 1 / 2, 1 / 4, and 1 / 4 respectively;

[0069] 2. The mobile device performs cell search based on all directional transceiver channels, and selects a serving cell to reside in;

[0070] This step further includes:

[0071] 201. Each directional channel receives the ...

specific Embodiment 2

[0131] The implementation scenario of this preferred embodiment is that the UE is in the BBU+RRU high-speed railway coverage scenario (train moving speed 450km / h), and the two RRUs of the BBU belonging to the same cell CELL1 cover the edge overlapping area.

[0132] The overall process of this embodiment is attached figure 1 Shown:

[0133] Steps 1~2 are identical with specific embodiment 1;

[0134] In this embodiment, the number of directional transceiver channels is set to 2, and the corresponding channel numbers are 1, 2, and the space ratios occupied in the omnidirectional coverage are 1 / 2, 1 / 2 respectively;

[0135] In this embodiment, after step 2, select CELL1 to reside in as the serving cell;

[0136] 3. Taking the preset channel selection time as the cycle, each directional transceiver channel independently measures and monitors the signal quality of the candidate cells in the list of all neighboring cells; selects at least one directional transceiver channel with ...

specific Embodiment 3

[0163] The implementation scenario of this preferred embodiment is that the UE is in the BBU+RRU high-speed railway coverage scenario (train moving speed 450km / h), and the two RRUs of the BBUs belonging to two different cells CELL1 and CELL2 respectively cover the edge overlapping area .

[0164] The overall process of this embodiment is attached figure 1 Shown:

[0165] Steps 1 and 2 are identical to the specific embodiment 2;

[0166] Wherein, after step 2, CELL1 is selected as the serving cell to reside in;

[0167] 3. Taking the preset channel selection time as the cycle, each directional transceiver channel independently measures and monitors the signal quality of the candidate cells in the list of all neighboring cells; selects at least one directional transceiver channel with the best signal quality for receiving the serving cell as the active channel, based on Activate the channel to send and receive signals; the specific process of this step is attached Figure 4 ...

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Abstract

The invention discloses a method for transmitting and receiving signals of a mobile device. At least two directional transmitting and receiving channels covering different spatial ranges are set in the mobile device, and the combinations of the directional transmitting and receiving channels jointly cover the omnidirectional transmitting and receiving spatial range of the mobile device; the mobile device is based on All directional transceiver channels perform cell search and service cell selection, and select a service cell to reside in; with the preset channel selection time as the cycle, each directional transceiver channel independently measures and monitors the signal quality of all cells; selects at least one receiving service cell with the best signal quality A good directional transceiver channel is used as an active channel, and signals are sent and received based on the active channel. The method of the present invention successfully reduces co-channel interference radiation intensity and Doppler frequency shift hopping range through space segmentation, and effectively solves the extremely prominent co-frequency interference on the mobile device side in commercial networks, high-speed rail scene signal resonance cancellation, and Doppler frequency. It solves technical difficulties such as sudden mobile jumps, and significantly improves the performance of mobile devices.

Description

technical field [0001] The invention relates to a method for transmitting and receiving signals of mobile equipment in a mobile communication system, in particular to a method for transmitting and receiving signals of mobile equipment in a time division synchronization-code division multiple access system. Background technique [0002] With the continuous deepening of time division-synchronous code division multiple access (abbreviation, TD-SCDMA) system evolution process, such as N-frequency point networking, high-speed packet access (abbreviation, HSPA), multimedia broadcast multicast (abbreviation, MBMS), Technologies such as high-speed rail (referred to as HST) coverage have been promoted and applied successively, effectively improving the market performance of TD-SCDMA system. [0003] However, the N-frequency point networking technology inevitably introduces more prominent co-channel interference components while improving the system spectrum utilization rate, which im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/14H04W24/00H04W48/16
Inventor 谭舒申敏王茜竹郑建宏
Owner SPREADTRUM COMM (SHANGHAI) CO LTD