Common control channel detection method, transmission method and device

Abstract

Embodiments of the present invention provide a common control channel detection method, a transmission method and a device. The detection method includes determining a set of candidate resources within a virtual downlink resource of a current cell. Wherein the set of candidate resources may include at least one candidate resource carrying a common control channel of the current cell. At least onecandidate resource in the set of candidate resources is detected to acquire a common control channel of the current cell. In the embodiment of the invention, by expanding the selection range of the transmission resources of the common control channel, the inter-cell interference of the common control channel can be coordinated, and the detection performance of the common control channel can be improved.

Description

technical field [0001] The present invention relates to the communication field, and more specifically, to a detection method, a transmission method and a device of a common control channel. Background technique [0002] Primary Synchronization Signal (PSS, Primary Synchronization Signal) and Secondary Synchronization Signal (SSS, Secondary Synchronization Signal) have a transmission period of 5 subframes, and their frequency domain positions are within the frequency domain width of 6 resource blocks at the center of the carrier. Takes up two symbols. The Physical Broadcast Channel (PBCH, PBCH) occupies the first four symbols of the second time slot in subframe 0 in the time domain, and is also located within the frequency domain width of 6 resource blocks at the center of the carrier in the frequency domain. The downlink carrier bandwidth is carried in the PBCH, so before the PBCH is detected, the user equipment (UE, User Equipment) can only identify the downlink resource ...

AI Technical Summary

Problems solved by technology

However, based on the design of the current system, the downlink carrier bandwidth is carried in the PBCH, that is to say, the UE does not know the downlink resource bandwidth of the current carrier before detecting the PBCH, so the above-mentioned interference coordination can only be performed within the predefined bandwidth. For example, the predefined bandwidth in the current Long Term Evolution (LTE) system is the frequency domain width of 6 resource blocks in the carrier center

It can be seen that this kind of interference coordination has a low degree of freedom, especially in the scenario of densely deployed small cells, which cannot completely solve the above-mentioned common control channel detection problem

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