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A method and base station for coordinated multi-point communication

A communication method and multi-point coordination technology, applied in the field of communication, can solve problems affecting the system throughput of the cell, MCS misjudgment, etc.

Active Publication Date: 2020-03-03
CHINA UNITED NETWORK COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing CoMP scheme only makes neighboring cells avoid scheduling resources of a certain UE, does not adjust the MCS scheduled by the UE, and still uses the previous MCS to schedule the UE, resulting in serious misjudgment of the MCS, which in turn affects the throughput of the system in the cell

Method used

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  • A method and base station for coordinated multi-point communication
  • A method and base station for coordinated multi-point communication
  • A method and base station for coordinated multi-point communication

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0053] An embodiment of the present invention provides a method for coordinated multi-point communication, such as figure 2 As shown, the method includes the following steps:

[0054] 101. The base station sets a preset threshold.

[0055] Specifically, the preset threshold is used to define whether the UE is a marginal UE. The UE reports the first RSRP value of the current cell and the second RSRP value of the neighboring cell to the base station after performing RSRP measurement on the current cell and the neighboring cell. The base station calculates and obtains the difference between the first RSRP value and the second RSRP value.

[0056] Usually, the RSRP value of the local cell measured by the UE in the cell is much smaller than the measured RSRP value of the neighboring cell. When the UE is at the edge of the cell, the measured RSRP value of the local cell becomes smaller. The difference becomes smaller. Therefore, when the difference between the two is smaller tha...

Embodiment 2

[0076] An embodiment of the present invention provides a base station, such as image 3 As shown, it includes: a receiving unit 201 , a calculating unit 202 , a determining unit 203 and a sending unit 204 .

[0077] The receiving unit 201 is configured to receive a measurement report reported by the user equipment UE; the measurement report carries the first reference signal received power RSRP value of the current cell measured by the UE and the second RSRP of the neighboring cell measured by the UE value and the channel quality value CQI obtained by the UE; the local cell is a coverage cell of the base station, and the neighboring cell is a cell adjacent to the local cell.

[0078] The calculation unit 202 is configured to determine that the UE is an edge UE of the current cell according to the difference between the first RSRP value and the second RSRP value.

[0079] A determining unit 203, configured to calculate and obtain a CQI increment of the UE according to the CQI,...

Embodiment 3

[0093] An embodiment of the present invention provides a base station, such as Figure 4 As shown, the device includes: a processor 501, a system bus 502, a memory 503, and a receiver 504.

[0094] Wherein, the processor 501 may be a central processing unit (English: central processing unit, abbreviated as CPU).

[0095] The memory 503 is used to store program codes, and transmit the program codes to the processor 501, and the processor 501 executes the following instructions according to the program codes. The memory 503 may include a volatile memory (English: volatile memory), such as a random access memory (English: random-access memory, abbreviated as RAM); the memory 503 may also include a non-volatile memory (English: non-volatile memory ), such as read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, abbreviation: S...

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Abstract

The invention provides a method for coordinated multi-point communication and a base station, which relate to the technical field of communication and are used for realizing coordinated multi-point communication. Including: the base station receives the measurement report reported by the user equipment UE; the measurement report carries the first RSRP value of the current cell measured by the UE, the second RSRP value of the neighboring cell measured by the UE, and the channel quality obtained by the UE value CQI; according to the difference between the first RSRP value and the second RSRP value, determine that the UE is the edge UE of the cell; calculate the CQI increment of the UE according to the CQI, and obtain the update of the UE according to the CQI and the CQI increment calculation MCS: the base station sends a notification message to the neighboring cell, indicating that the UE will be scheduled using preset resources; the notification message carries the information of the preset resource used by the base station to schedule the UE; according to the updated MCS, use the preset resource to transmit downlink data to the UE , so as to schedule the UE.

Description

technical field [0001] The present invention relates to the field of communication technologies, in particular to a method for coordinated multi-point communication and a base station. Background technique [0002] LTE (Long Term Evolution, Long Term Evolution) adopts a strategy of co-frequency networking, which leads to the problem of inter-cell interference in the LTE system. In the same RB (Resource Block, time-frequency resource block) or RBG (RB Group), two stations may simultaneously schedule users in their respective cells on the resource block. In this way, the same time-frequency resources at the edge of the cell will interfere with each other, thereby reducing the throughput of the system. The 3GPP proposes a Coordinate Multiple Point Transmission Reception (CoMP) solution for the interference problem at the cell edge. [0003] One technique included in CoMP is: the UE at the edge of the cell reports its own channel conditions and interference conditions to the c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W24/10H04W72/12
CPCH04W24/10H04W72/542
Inventor 马玥王友祥范斌
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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