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Configuration and sending method of uplink signal transmission resource, base station and user terminal

A technology of signal transmission and resource allocation, applied in transmission systems, wireless communications, electrical components, etc., can solve problems such as lack of SRS resources, and achieve the effect of solving the lack of SRS resources

Inactive Publication Date: 2010-10-20
CHINA ACAD OF TELECOMM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the present invention provides a method for configuring and sending uplink signal transmission resources, a base station and a UE, so as to meet the requirements for the use of multi-point coordinated transmission technology in the LTE-A system and solve the problem of lack of SRS resources

Method used

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  • Configuration and sending method of uplink signal transmission resource, base station and user terminal
  • Configuration and sending method of uplink signal transmission resource, base station and user terminal
  • Configuration and sending method of uplink signal transmission resource, base station and user terminal

Examples

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Embodiment 1

[0030] Embodiment 1: Using a new special subframe configuration, the number of OFDM symbols of the UpPTS is greater than 2. Correspondingly, the number of OFDM symbols of the DwPTS or GP is reduced to keep the total length of the special subframe unchanged.

[0031] For example, the new special subframe configuration can be obtained by extending the special subframe configuration 5, and the number of OFDM symbols of UpPTS can be 4. Correspondingly, the number of OFDM symbols of GP can be reduced by 2, for example figure 2 as shown, figure 2 (a) is the special subframe configuration 5 in the existing protocol, the number of OFDM symbols of DwPTS is 3, the number of OFDM symbols of GP is 9, and the number of OFDM symbols of UpPTS is 2. figure 2 (b) in (b) is a new special subframe configuration, and the resources in the shaded part in the figure are 2 OFDM symbols reduced from the GP as UpPTS resources. Of course, OFDM symbols in DwPTS can also be reduced as resources in UpP...

Embodiment 2

[0038] Embodiment 2: The configuration of the existing protocol is still adopted, and resources corresponding to N OFDM symbols in the GP immediately adjacent to the UpPTS are also configured as uplink signal transmission resources.

[0039] Preferably, in order to ensure that the cell coverage requirements are met, the above-mentioned N OFDM symbols in the GP in this embodiment are the N OFDM symbols in the GP other than meeting the cell coverage requirements, that is, in addition to the N OFDM symbols Other OFDM symbols in the GP can still meet the cell coverage requirement.

[0040] The N OFDM symbols are still resources in the GP, but they can be used for uplink signal transmission. Still take the configuration 5 of the special subframe as an example, such as image 3 As shown, the shaded part is the 2 OFDM symbols next to the UpPTS in the GP, and the 2 OFDM symbols together with the resources corresponding to the UpPTS are configured as uplink signal transmission resource...

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Abstract

The invention provides a configuration and sending method of uplink signal transmission resource, a base station and a user terminal (UE). The base station configures resource corresponding to the uplink pilot time slot (UpPTS) with more than two of orthogonal frequency division multiplexing (OFDM) symbols to be uplink signal transmission resource, or configures N OFDM symbols in guard space (GP), which are adjacent to UpPTS and resource corresponding to UpPTS, to be uplink signal transmission resource, and informs the uplink signal transmission resource configuration information to UE through system broadcasting or high-level signaling, wherein N is an integer larger or equal to 1. The invention can meet the user requirement that more SRS resources are occupied in the multipoint cooperative transmission technology and solve the problem that the SRS resource is not enough.

Description

technical field [0001] The present invention relates to the technical field of mobile communication, in particular to a method for configuring and sending uplink signal transmission resources, a base station and a user terminal. Background technique [0002] An enhanced long-term evolution (LTE-A, LTE-Advanced) system is an evolution system of the third generation mobile communication system, which introduces a coordinated multi-point transmission technology to improve service quality of cell edge users. Coordinated multi-point transmission technology improves the quality of signals received by users and reduces interference between cells through joint scheduling or coordinated transmission of multiple geographically separated cells, thereby effectively improving system capacity and spectral efficiency of edge users. [0003] In coordinated multi-point transmission technology, channel information from a user terminal (UE) to multiple cells is an important factor affecting sy...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W74/08H04W88/02H04W88/08H04B1/707H04L27/26
Inventor 高秋彬缪德山沈祖康孙韶辉彭莹
Owner CHINA ACAD OF TELECOMM TECH
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