CN106888470B

CN106888470B - Method and device for performing channel measurement by wireless network

Info

Publication number: CN106888470B
Application number: CN201510943395.3A
Authority: CN
Inventors: 苏福玉
Original assignee: Runjian Co Ltd
Current assignee: Runjian Co Ltd
Priority date: 2015-12-16
Filing date: 2015-12-16
Publication date: 2020-02-18
Anticipated expiration: 2035-12-16
Also published as: CN106888470A

Abstract

The invention relates to an intelligent control technology in the communication field, in particular to a control, judgment, method and device for LTE (Long term evolution) and subsequent wireless communication systems with the purposes of ensuring user rate perception and fully measuring channels. The evaluation and feedback of the channel condition of the wireless network by using the measurement report is a common practice of the commercial wireless communication network, and is also adopted by LTE and subsequent evolution. When the pilot frequency measurement is involved, the LTE downlink peak rate is seriously influenced, so that the problem of insufficient data volume of a measurement report caused by the fact that the pilot frequency periodic measurement is carried out as much as possible and the periodic measurement reporting frequency of a base station is consistent with that of a mobile phone. The scheme adopted by the invention is that the different-frequency periodic measurement requirement is selectively issued to the RRC connection by identifying the actual service rate requirement, different requirements are made on the periodic measurement report time interval of the base station and the UE, the report of the base station is more frequent than that of the UE, the problem of insufficient data quantity of the measurement report is solved, and the use experience of a user is basically not influenced.

Description

Method and device for performing channel measurement by wireless network

Technical Field

The invention relates to an intelligent control technology in the communication field, in particular to a control, judgment, method and device for LTE (Long term evolution) and subsequent wireless communication systems with the purposes of ensuring user rate perception and fully measuring channels.

Background

The evaluation and feedback of the channel condition of the wireless network by using the measurement report is a common practice of the commercial wireless communication network, and is also adopted by LTE and subsequent evolution. When the pilot frequency measurement is involved, the LTE downlink peak rate is seriously influenced, and the peak rate is reduced by 20% or more, so that the problem of insufficient data volume of a measurement report caused by periodic pilot frequency measurement is avoided as much as possible; in a periodic measurement report, when a UE (mobile phone) reports a measurement report, in order to reduce the working pressure of the UE, a reporting interval is generally set to be longer, for example, about 8S, and it is also assumed that the measurement performed by a base station is reported for the same duration, and there is no bottleneck in the actual capability of the base station, but there is a problem that the data volume of the measurement report is insufficient due to a larger reporting interval.

Disclosure of Invention

The invention provides the following solution for solving the problem of insufficient data volume of a measurement report and basically not influencing the use experience of a user: for the pilot frequency period measurement, the statistics of each RRC connection flow and transmission time length by the PDCP layer and the actual speed requirements of different users corresponding to the states of the RRC connection BS (buffer data volume) are used, the uplink threshold and the downlink threshold are respectively set, the RRC connections which are smaller than a preset threshold T (the average speed of the previous S seconds, T, S can be set, T, S is parameter naming) and B (the average buffer data volume of the previous S seconds and B is parameter naming and can be set) are screened, the pilot frequency period measurement requirements are made on the RRC connections of which the uplink and the downlink are lower than the respectively set threshold, the reason is that the required speed is small enough, the actual use experience is not influenced even if the peak speed is obviously reduced, the pilot frequency period measurement requirements are not made on the RRC connections above the threshold, thus the actual use experience is not influenced (the threshold is set, the threshold is actually selected by operator) and the work based on the pilot frequency period measurement can obtain enough measurement data, shorten consuming time, raise the efficiency. For the problem of long period of measurement report, the reporting period of the UE is not changed, the reporting period of the base station can be adjusted to be an integer time value a (named parameter) which is used as a divisor to divide the reporting period of the UE completely, the minimum is 1 second, the maximum is the same as the reporting period of the UE, and the a can be set specifically, so that the reporting frequency of measurement values such as AOA and TA can be increased, the requirement of work such as positioning on data volume is met, the working pressure of the UE is not increased, and the measurement reports of the base station and the UE can be aligned in time or combined in a very convenient manner.

Description of abbreviations: PDCP-packet data convergence protocol layer; RRC — radio resource connection; BS — amount of buffered data; UE-user equipment, i.e. handset; AOA-user equipment incoming wave direction; TA-time adjustment, closely related to distance; LTE-4G.

Claims

1. A method for a wireless network to perform channel measurements,

(1) selectively issuing a pilot frequency period measurement requirement to the wireless resource connection by identifying the actual service rate requirement, specifically: using a packet data convergence protocol layer to count the wireless resource connection flow and transmission time and measure the actual speed requirements of different users corresponding to the wireless resource connection cache data volume state, respectively setting uplink and downlink thresholds, screening out wireless resource connections smaller than a preset threshold, and making different-frequency period measurement requirements on the wireless resource connections of which the uplink and the downlink are lower than the respectively set thresholds; the threshold refers to the average speed and the average buffer data amount in a specific time;

(2) different requirements are made on the periodic measurement report time intervals of the base station and the user equipment, and the specific requirements are as follows: for the problem of longer period of the periodic measurement report, the reporting period of the user equipment is unchanged, and the reporting period of the base station is adjusted to be an integer time value which can be used as a divisor for completely dividing the reporting period of the user equipment.