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Method, device and system for determining sounding reference signal resources

A technology for detecting reference signals and resource determination, which is applied in the field of communication, and can solve problems such as lengthening cycle, sending SRS signal cycle cannot be infinitely extended, user equipment out of sync, etc.

Active Publication Date: 2016-05-25
HUAWEI TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, there are obvious defects in the existing technology. For user equipments that enter the network earlier, more abundant SRS resources can be allocated, that is, the user equipment can be allocated a shorter period of sending SRS signals and more bandwidth. User equipment that enters the network late can only reduce the allocated SRS resources, that is, it can only lengthen the period of sending SRS signals and reduce the bandwidth
Since the user equipment that entered the network earlier adopts a more generous SRS resource allocation method, the SRS resources are obviously wasted
For user equipment that enters the network later, although it is possible to access the network by lengthening the period of sending SRS signals and reducing the bandwidth to reduce the occupation of SRS resources, the SRS resources are fixed, and the bandwidth cannot be infinitely reduced and sent The period of the SRS signal cannot be extended infinitely. When the bandwidth is reduced or the period of the SRS signal is extended beyond the critical point, it will cause the user equipment to lose synchronization in the uplink
Therefore, when the base station finds that it is no longer possible to allocate SRS resources to the user equipment by continuing to prolong the period of sending SRS signals and reducing the bandwidth, the base station will reject the access of the user equipment, thus limiting the number of accessible users in the cell

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  • Method, device and system for determining sounding reference signal resources
  • Method, device and system for determining sounding reference signal resources
  • Method, device and system for determining sounding reference signal resources

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Embodiment Construction

[0029]In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

[0030] refer to Figure 1 to Figure 3 , figure 1 is a schematic structural diagram of an embodiment of a system for determining sounding reference signal resources in this application, figure 2 yes figure 1 The schematic diagram of the symbol of the SRS signal transmitted by the system for determining the sounding reference signal resources shown, image 3 yes figure 1 The sho...

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Abstract

The invention discloses a method, device and system for determining sounding reference signal (SRS) resources, wherein the method comprises the following steps: the moving speed of user equipment is measured; and the SRS resources distributed to the user equipment are determined according to the moving speed of the user equipment, wherein the SRS resources include an SRS bandwidth and an SRS cycle. According to the technical scheme of the invention, the resources distributed to the SRS are determined according to the moving speed of the user equipment, the SRS resources can be effectively saved, and the number of accessible users in a district is increased.

Description

technical field [0001] The present application relates to the communication field, in particular to a method, device and system for determining sounding reference signal resources. Background technique [0002] In the Long Term Evolution (LTE) system, the user equipment must perform uplink synchronization when sending data to the base station, and the uplink signals sent by the user equipment at different locations using the same time slot arrive at the receiving antenna of the base station at the same time, so that the base station can demodulate the data of each user. data sent by the device. A Sounding Reference Signal (Sounding Reference Signal, SRS) is a signal used to measure wireless channel information between a user equipment and a base station. According to the instructions of the base station, the user equipment periodically sends the SRS signal on the last data symbol (time) of the subframe according to the allocated bandwidth (frequency). The base station must...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/00H04W72/04
Inventor 陈钧
Owner HUAWEI TECH CO LTD
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