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SRS band width collocation method, system and apparatus

A technology of bandwidth and target bandwidth, which is applied in the field of communication, can solve the problems of high overhead and long time consumption, and achieve the effect of reducing signaling overhead and simplifying complexity

Active Publication Date: 2010-09-29
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] SRS bandwidth reconfiguration signaling for all users is expensive and time consuming

Method used

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  • SRS band width collocation method, system and apparatus
  • SRS band width collocation method, system and apparatus
  • SRS band width collocation method, system and apparatus

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0028] An SRS bandwidth configuration method proposed in Embodiment 1 of the present invention, such as figure 1 shown, including:

[0029] Step S101, when the cell-level SRS bandwidth configuration changes and triggers the configuration of the user-level SRS bandwidth, determine the user-level SRS bandwidth configured for users in the cell according to the configuration strategy based on the principle that the number of users whose user-level SRS bandwidth changes is the least ;

[0030] Step S102, sending an instruction to the user whose user-level SRS bandwidth has changed, where the instruction carries user-level SRS bandwidth information after the user-level SRS bandwidth has changed.

[0031] It can be seen that in the embodiment of the present invention, when the reconfiguration of the user-level SRS bandwidth is triggered due to a change in the maximum bandwidth of the cell-level SRS, the number of users whose user-level SRS bandwidth changes is the least, and the us...

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PUM

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Abstract

The embodiment of the invention discloses a method used for allocating SRS bandwidth, a system and a device thereof. The method comprises the steps as follows: when subdistrict-grade SRS bandwidth allocation is changed so that the allocation of user-grade SRS bandwidth is triggered, the method confirms the user-grade SRS bandwidth for the subdistrict user allocation according to the allocation strategy based on the principle that the quantity of the users with the user-grade SRS bandwidth being changed is the least; the invention sends a command to the users with the user-grade SRS bandwidth being changed; and the command carries user-grade SRS bandwidth information after the user-grade SRS bandwidth is changed. In the invention, the SRS bandwidth of most users is reserved to the greatestextent, so the quantity of the users without change is the most, and the quantity of the users with change is the least; for the whole system, the invention ensures that the signaling cost required for reallocating the user-grade SRS bandwidth is reduced greatly and simplifies the complexity of SRS bandwidth reallocation.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method, system and device for SRS bandwidth configuration. Background technique [0002] With the increasing progress of society, global wireless communication presents a development trend of mobility, broadband and IP, and LTE (Long Term Evolution, long-term evolution plan) has achieved the goal of reducing costs and improving performance. In the LTE system, the reference signals sent by UE (User Equipment, user equipment) to eNB (base station) include but not limited to DM-RS (Demodulation Reference Signal, demodulation reference signal) and SRS (Sounding Reference Signal, detection reference signal) , where the DM-RS is used for demodulation of service data and signaling information, and the SRS is used for the eNB to measure the UE. In practical applications, the frequency band occupied by SRS cannot overlap with the frequency band occupied by PUCCH (Physi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W4/12H04B1/707
Inventor 李伟彭炳光
Owner HUAWEI TECH CO LTD