Method and apparatus for measuring carrier

Abstract

The embodiment of the invention provides a method and an apparatus for measuring carrier. The method comprises: receiving a control message from a base station, wherein the control message being used for indicating up-down subframe configuration of the carrier not currently providing services; determining the uplink-downlink configuration of the carrier not currently providing services based on the control message; and measuring the carrier based on the uplink-downlink configuration of the carrier. The apparatus comprises a reception module, a determination module, and a measuring module. Based on the technical scheme provided by the embodiment of the invention, the uplink-downlink configuration of the carrier not currently providing services can be obtained from the control message, so that more subframe information can be used for measuring the carrier not currently providing services, and more accurate measure results can be obtained in a shorter time, efficiency of measuring the carrier is improved, and the measurement process is still carried out based on the subframe, hardware resources needed for measuring by the user equipment need not to be increased, thereby preventing the cost of the chip of the user equipment from rising.

Description

technical field [0001] The present invention relates to the field of wireless communication, and more particularly, to a method and device for measuring carrier in the field of wireless communication. Background technique [0002] LTE-A (Long Time Evolution-Advance, long-term evolution evolution) R10 (version 10) is a further enhancement of the LTE R8 technology, and has a higher bandwidth requirement than the LTE system. In order to meet high bandwidth requirements and support a peak data rate up to 1 Gbits / s, a carrier aggregation (Carrier Aggregation, CA) technology is introduced to expand system bandwidth. The main idea of ​​carrier aggregation is to aggregate multiple component carriers (Component Carriers, CCs) into a carrier with a larger bandwidth to support high-speed data rates. However, in the R10TDD (time division duplex) system, the system bandwidth can be aggregated by up to five component carriers, but the system can only support carrier aggregation with the ...

AI Technical Summary

Problems solved by technology

[0009] When the uplink and downlink subframe configurations of the carriers are different, although the UE knows the uplink and downlink subframe configurations of the currently serving carrier (including the carrier on which the UE camps in idle mode and the carrier from which the UE receives services in connected mode), However, the UE does not know the uplink and downlink subframe configuration of the carriers that are not currently providing services, so the UE's measurement of these carriers that are not currently providing services will be affected

For example, in the DRX (Discontinuous reception, discontinuous reception) state, since the UE can only measure the carrier that is not currently providing services for the subframe 0 and the subframe 5 in each configuration mode in Table 1, the UE measures the carrier The number of required subframes is reduced, so it takes longer to perform measurements under the premise of obtaining the same measurement accuracy, which shortens the time for the UE to go to sleep, which is not conducive to UE power saving

On the other hand, if the UE wants to obtain the same measurement accuracy, in order to shorten the measurement time, the measurement hardware resources of the UE need to be increased, resulting in an increase in the chip cost of the UE

[0010] It can be seen that when the carrier has different uplink and downlink subframe configurations, only subframe 0 and subframe 5 are used to measure the carrier, making it difficult to quickly and accurately measure the carrier that is not currently providing services

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