A method and device for indicating and confirming time-frequency resources

A time-frequency resource and indication technology, applied in the field of communication, can solve problems such as unspecified

Active Publication Date: 2016-04-06
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to different application environments and manufacturers, the system bandwidth supported by each transmission point in the cooperative set may be different in actual work, and the content of the resource indication is related to the system bandwidth. In this case (that is, in CoMP transmission ) needs to determine the system bandwidth of which transmission point in the cooperative set to perform resource indication. At present, no clear method has been developed

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  • A method and device for indicating and confirming time-frequency resources
  • A method and device for indicating and confirming time-frequency resources
  • A method and device for indicating and confirming time-frequency resources

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Embodiment Construction

[0044] In order to improve the protocol flow, in the embodiment of the present invention, a method for indicating and confirming time-frequency resources in CoMP transmission is formulated.

[0045] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0046]In the embodiment of the present invention, a transmission point is defined as a group of transmission antennas with the same geographic location, and different sectors of the same site correspond to different transmission points. In CoMP transmission, the transmission points that directly and / or indirectly participate in sending data to the UE form a coordinated transmission set. Among them, the transmission point that sends PBCH (physical broadcast channel, physical broadcast channel) signaling to the UE is called a service point, and the others can be called non-service point. At the same time, in order to implement CoMP transmission, the UE ne...

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Abstract

The invention relates to the field of communication and discloses an indication and confirmation method and device for a time-frequency resource. The method includes the steps that a base station notifies UE of system bandwidths of at least two transmission points, selects the system bandwidth of at least one transmission point from the system bandwidths as a target bandwidth with a preset method, allocates the time-frequency resource to the UE according to the at least one target bandwidth and carries out time-frequency resource indication in at least one downlink signal; the UE selects the system bandwidth of at least one transmission point as a target bandwidth from the acquired system bandwidths of at least two transmission points with the same preset method and confirms the time-frequency resource allocated by the base station side based on the acquired at least one target bandwidth according to the received at least one downlink signal. Thus, under the condition that system bandwidths of all transmission points in a cooperation set possibly differ from one another, agreed indication of the time-frequency resource is achieved in CoMP transmission, and therefore the UE can receive data effectively based on the acquired time-frequency resource.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method and device for indicating and confirming time-frequency resources. Background technique [0002] The LTE-A (LongTimeEvolved-Advanced, long-term evolution upgrade) system adopts the same frequency network, which greatly improves the spectrum utilization rate, and at the same time causes the user signal at the edge of the cell to fade seriously and suffer high interference from other cells. If the signal fading and interference problems are not dealt with, the experience of edge users will be seriously affected. CoMP (Coordinated Multi-Point) technology can not only improve signal quality but also reduce inter-cell interference by introducing information interaction and joint transmission between multiple cells, thereby greatly improving the data transmission performance of cell edge users. [0003] The current coordinated multi-point transmission schemes can be roughly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04B7/06
Inventor 张然然高秋彬彭莹沈祖康
Owner DATANG MOBILE COMM EQUIP CO LTD
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