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Space division multiplexing method of shared channel in multichannel HSDPA system

A shared channel and space division multiplexing technology, which is applied in the field of space division multiplexing of shared channels, can solve the problems of low frequency spectrum utilization of shared channels, and does not take into account the space division multiplexing of HSDPA shared channels, etc., so as to improve the utilization of spectrum resources rate, to achieve the effect of space division multiplexing

Active Publication Date: 2012-04-25
TD TECH COMM TECH LTD
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Problems solved by technology

[0015] However, in the existing multi-channel system, the space division multiplexing of other HSDPA-specific shared channels is not considered, which makes the spectrum utilization of these HSDPA-specific shared channels lower

Method used

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  • Space division multiplexing method of shared channel in multichannel HSDPA system
  • Space division multiplexing method of shared channel in multichannel HSDPA system
  • Space division multiplexing method of shared channel in multichannel HSDPA system

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Embodiment 1

[0087] Each cell and the number of channels for each cell can be determined through network planning. In a multi-channel cell, it is assumed that the cell has M channels. The isolation between each channel is very high, and the shared channel of HSDPA can be space-division multiplexed between different channels. The maximum factor for the shared channel to be space-division multiplexed is: M. That is: HS-SCCH / HS-SICH / HS-PDSCH can be used by M channels at the same time.

[0088] Taking the indoor coverage environment as an example, the specific space division multiplexing method in this embodiment includes the following processing:

[0089] Step 1, in the current subframe "n", determine the channel where each UE is located according to the received signal of each UE's uplink channel. A UE may have uplink signals in multiple channels, therefore, a UE may occupy multiple channels.

[0090] Specifically, if a UE has only one uplink channel in the current uplink time slot "ts" ...

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Abstract

The invention discloses a space division multiplexing method of a shared channel in a multichannel HSDPA system, comprising the following steps: presetting the timing relationship among the dispatched HS-SCCH, HS-PDSCH and HS-SICH; determining the channel on which each UE is located and the dispatching priority of each UE according to the receiving signals of each UE uplink channel; according to the priority from high to low, allocating the dispatched HS-SCCH resources, HS-PDSCH resources for each UE, wherein any one of the HS-SCCH resources or HS-PDSCH resources is allowed to be allocated toN numbered different channels, and each channel only can be allocated once; and performing corresponding channel data transmission on own channels of each UE according to the allocated channel resources in terms of the timing relationship. By using the invention, frequency spectrum resource utilization rate can be improved.

Description

technical field [0001] The invention relates to channel multiplexing technology, in particular to a method for space division multiplexing of shared channels in a multi-channel HSDPA system. Background technique [0002] In HSDPA, there is a HSDPA-specific transmission channel HS-DSCH (High speed-Downlink Shared Channel) and three HSDPA-specific physical shared channels: HS-SCCH (High speed-Shared Control Channel), HS-SICH ( High speed-SharedInformation Channel) and HS-PDSCH (High speed-Physical Downlink SharedChannel). [0003] The RNC will configure the HS-PDSCH resource pool of each cell supporting HSDPA. When the RNC configures the HS-PDSCH resource pool of the cell, it will indicate which channel codes of which downlink time slots belong to the resource pool, and further specify the HS-PDSCH channel codes in each downlink time slot belonging to the HS-PDSCH resource pool total transmit power. The RNC will also configure one or more pairs of HS-SCCH and HS-SICH for th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/10H04W72/14
Inventor 魏立梅佟学俭邢立军
Owner TD TECH COMM TECH LTD
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