Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP

A technology of interference suppression and combining algorithms, applied in the field of wireless communication, can solve the problems of poor anti-interference ability of uplink CoMP, achieve good anti-interference ability, increase user gain, and improve anti-interference ability

Active Publication Date: 2016-05-18
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The main technical problem to be solved by the present invention is to provide a joint interference suppression method and device, and a method and device for realiz

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  • Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP
  • Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP
  • Combined interference rejection method, combined interference rejection device, and method and device for implementing uplink CoMP

Examples

Experimental program
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Example Embodiment

[0049] Example 1:

[0050] Considering that the current uplink CoMP cannot be implemented for distributed networks, and the application of the IRC algorithm for interference suppression cannot achieve the best effect, the current technical problems of the current uplink CoMP poor anti-interference ability; such as image 3 As shown, this embodiment provides a joint interference suppression method for implementing uplink CoMP, including the following steps:

[0051] Step 301: A first cell receives scheduling information of a second terminal sent by a second cell, the second terminal belongs to the second cell, and the scheduling information includes the scheduling information allocated by the second cell to the second terminal. Resource block information and pilot symbol location information.

[0052] In this embodiment, the first cell may be a serving cell or a cooperating cell in the CoMP system, and the second cell may be a cooperating cell or a serving cell in the CoMP sys...

Example Embodiment

[0063] Embodiment 2:

[0064] like Figure 5 As shown, this embodiment provides a method for implementing uplink CoMP, including the following steps:

[0065] Step 501: When the first cell and the second cell that need to perform uplink CoMP do not belong to the same base station, detect the transmission delay between the base station to which the first cell belongs and the base station to which the second cell belongs.

[0066] Step 502: Determine whether the transmission delay satisfies the preset time condition, if yes, go to Step 503, if not, go to Step 504.

[0067] Preferably, the preset time condition in this step may include: the transmission delay is greater than the second delay and less than or equal to the first delay, and the first delay is a preset uplink CoMP maximum delay.

[0068] Preferably, when other JR modes are also preset in the system, the second delay in this embodiment is the preset maximum delay for implementing uplink CoMP by adopting the joint so...

Example Embodiment

[0103] Embodiment three:

[0104] like Figure 7 As shown, this embodiment provides a joint interference suppression device for implementing uplink CoMP, including: a receiving unit and an interference suppression unit;

[0105] The receiving unit is configured to receive scheduling information of a second terminal sent by a second cell, where the second terminal belongs to the second cell, and the scheduling information includes the scheduling information allocated by the second cell to the second terminal. Resource block information and pilot symbol location information;

[0106] When the interference suppression unit is used for the first cell to demodulate the information sent by the first terminal under it, an interference suppression combining algorithm is used according to the scheduling information to eliminate the co-channel interference of the second cell to the first cell.

[0107] With the joint interference suppression device provided in this embodiment, since t...

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Abstract

The invention discloses a combined interference rejection method, a combined interference rejection device, and a method and a device for implementing uplink CoMP. The combined interference rejection method, which is used for implementing uplink CoMP, comprises the following steps: a first cell receives scheduling information of a second terminal sent by a second cell, wherein the second terminal belongs to the second cell, and the scheduling information includes resource block information and pilot symbol position information allocated by the second cell to the second terminal; and when the first cell demodulates information sent by a first terminal under the first cell, co-channel interference of the second cell to the first cell is eliminated by an interference rejection combining algorithm according to the scheduling information. By using the combined interference rejection method of the invention, the technical problem that the existing distributed network cannot implement uplink CoMP and is of poor uplink CoMP anti-jamming capability is solved.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, in particular to a method and device for joint interference suppression, and a method and device for realizing uplink CoMP. Background technique [0002] Coordinated multi-point transmission / reception (CoMP) technology is a technology in an LTE-A network that improves cell edge throughput, increases high-rate data service coverage, and improves system throughput by reducing or eliminating co-channel interference. technology. [0003] Such as figure 1 As shown, the current actual CoMP networking scenarios of operators mainly include two types: centralized and distributed. Centralized networking is to put the baseband unit (BBU) of each eNodeB together, and place the radio frequency unit (RRU) on the required site. The BBU and RRU are connected by optical fiber, and the BBUs can also be directly connected by optical fiber Connect to realize X2 interface interaction. In di...

Claims

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Application Information

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IPC IPC(8): H04W72/08H04W72/12
CPCH04J11/0053H04W72/54
Inventor 罗夙
Owner ZTE CORP
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