Auxiliary synchronizing channel configuring method and device, and subcarrier mapping method and device
A secondary synchronization channel and synchronization channel technology, applied in the field of communication, to achieve the effect of optimizing performance
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Embodiment 1
[0078] In this embodiment, a method for configuring a secondary synchronization channel is provided to configure the synchronization signal on the S-SCH in an orthogonal frequency division multiplexing system.
[0079] Such as image 3 As shown, the S-SCH configuration method according to this embodiment includes: step S302 and step S304. It should be noted that the steps described in this method can be executed in a computer system such as a set of computer-executable instructions, and, although in image 3 The logical order is shown in, but in some cases, the steps shown or described can be performed in a different order than here.
[0080] The following will describe image 3 The processing shown in.
[0081] Step S302, configuring a first basic sequence set used to represent each combination of cell ID and sector ID carried by the S-SCH of the macro base station; and / or
[0082] Step S304: Configure a second sequence set representing each combination of the cell ID and sector ID o...
Embodiment 2
[0133] In this embodiment, a method for configuring a secondary synchronization channel is provided to configure the synchronization signal on the S-SCH in an orthogonal frequency division multiplexing system.
[0134] Such as Picture 10 As shown, the method for configuring the secondary synchronization channel according to this embodiment includes step S1002 and step S1004.
[0135] Picture 10 The process shown in is as follows:
[0136] Step S1002, dividing the cell ID information carried in the synchronization signal into multiple ID subsets according to the system configuration information;
[0137] Step S1004: For each ID subset, a type sequence set for representing its type and a basic sequence set for representing IDs in the subset are configured.
[0138] In other words, each of the above ID subsets is represented by a combination of two different sequence sets. One sequence is the basic sequence set, which represents the cell ID in the subset, and the other is the type sequen...
Embodiment 3
[0173] In this embodiment, a sub-carrier mapping device is provided for mapping the synchronization sequence of the S-SCH in the orthogonal frequency division multiplexing system to the sub-carriers, where it is assumed that the number of useful sub-carriers is L.
[0174] Such as Picture 12 As shown, the subcarrier mapping apparatus according to this embodiment includes a first mapping module 122 and a second mapping module 124.
[0175] Picture 12 The functions of each module are as follows:
[0176] The first mapping module 122 is configured to perform subcarrier mapping of different sectors on subcarriers with subcarrier sequence numbers less than L / 2 according to the following formula:
[0177] x(n)=x(3u+k), k=0,1,2.u=0,1,2,...,
[0178] Among them, k represents the sector number, and u represents the element number in the sequence;
[0179] The second mapping module 124 is configured to perform subcarrier mapping for different sectors on subcarriers with subcarrier sequence numbe...
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