Method and device for processing frequency spectrum resources
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A spectrum resource and user equipment technology, applied in the field of spectrum resource processing, to reduce system costs and improve spectrum use efficiency
Active Publication Date: 2011-04-20
DATANG MOBILE COMM EQUIP CO LTD
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[0003] The disadvantage of the existing technology is that there is no technical solution to use all the spectrum resources used for TDD for data transmission
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Embodiment 1
[0089] This embodiment will introduce the implementation of aggregated uplink TDD virtual cells. Network scenarios such as figure 2 Shown as:
[0090] There are two adjacent TDD cells, cell 1 and cell 2, cell 1 is adjacent to the uplink of the FDD cell, and there is a protection bandwidth G1 between them, and cell 2 is adjacent to the downlink of the FDD cell, and there is protection between the two Bandwidth G2. In order to improve spectrum utilization, a virtual TDD cell with only uplink U3 is introduced in G1, and a virtual TDD cell with only downlink D4 is introduced in G2.
[0091] The UE is currently working in Cell 1 and Cell 2, and Cell 1 is the primary cell. Due to the increase in uplink traffic, the network decides to add aggregated carriers for the UE, that is, UE Aggregation U3. At this time, the network forms U3 and D3 into a virtual TDD cell, and then notifies the UE of the uplink, downlink, cross-carrier scheduling and public configuration information of the...
Embodiment 2
[0094] This embodiment will introduce the implementation of an aggregated downlink TDD virtual cell. The network scenario is the same as that in Embodiment 1:
[0095] The UE is currently working in cell 1 and cell 2. Due to the increase in downlink traffic, the network decides to add aggregated carriers for the UE, which is UE aggregation D4. At this time, the network forms D4 and U4 into a virtual TDD cell, and then notifies the UE of the downlink, cross-carrier scheduling and public configuration information of the cell through RRC dedicated signaling. Among them, the downlink configuration parameters include cell index, cell identity (frequency point and PCI), etc.; cross-carrier scheduling parameters include the cell index of other cells scheduling the virtual cell; public configuration parameters include TDD configuration (including subframe configuration and special subframe configuration), MBSFN subframe configuration, etc.
[0096] After receiving the RRC signaling,...
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Abstract
The invention discloses a method and a device for processing frequency spectrum resources. The method comprises that a base station determines frequency spectrum resources needing to be processed, the frequency spectrum resources can be used for uplink data transmission, and downlink frequency spectrum resources without corresponding relationship of uplink and downlink are used for downlink data transmission; and the base station notifies the user facility of using a carrier wave aggregation technology to polymerize the frequency spectrum resources after determining that the frequency spectrum resources are used for the uplink data transmission. The user facility polymerizes the frequency spectrum resources by utilizing the carrier wave aggregation technology according to notification. The invention has the advantages that terminals can operate in cells within protection bandwidth, the using efficiency of a time division duplex frequency spectrum is improved, and system cost is lowered.
Description
technical field [0001] The present invention relates to wireless communication technology, in particular to a method and equipment for processing frequency spectrum resources. Background technique [0002] figure 1 It is a schematic diagram of TDD (Time Division Duplex, time division duplex) and FDD (Frequency Division Duplex, frequency division duplex) spectrum usage schemes, taking 2.6GHz spectrum as an example, such as figure 1 As shown, a currently feasible TDD and FDD spectrum usage scheme is as follows: between the TDD and FDD spectrums, two guard bandwidths, G1 and G2, are set aside to avoid interference between the two. [0003] The disadvantage of the existing technology is that there is currently no technical solution that can use all the spectrum resources used for TDD for data transmission. Contents of the invention [0004] The technical problem solved by the present invention is to provide a method and equipment for processing spectrum resources, so as to i...
Claims
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