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Method and device for receiving information by high speed shared information channels (HS-SICH)

An HS-SCCH technology for receiving information, which is applied in the field of receiving information through a high-speed shared information channel, can solve the problems of deteriorating partial decoding performance of data, low channel resource utilization, and large mutual interference, so as to improve channel performance and cell capacity. Improve channel resource utilization and reduce interference

Active Publication Date: 2012-08-29
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multiple space-division user equipments occupy the same time slot code channel at the same time, and are scheduled by the base station at the same time. Therefore, compared with the case where SDMA technology is not introduced, although the average throughput of the cell can be greatly improved, in order to schedule more user equipments, more More control channel overhead to meet the needs of further scheduling space division user equipment on the basis of time division and code division, but the control channel resources in the cell are limited
[0010] The SDMA technology is used for the control channel, so that when multiple space-division user equipments use the same control channel at the same time, different user equipments can only be distinguished by space angle isolation. However, since the control channel has higher performance requirements than the traffic channel, if If the user equipments only rely on space angle isolation to achieve space separation and receive their own control channels, there will be large mutual interference and poor performance.
Especially when the HS-SICH of multiple user equipments adopts SDMA technology, the ACK and CQI of multiple user equipments are superimposed on one SF=16 code channel, then not only the channel estimation is inaccurate, but also the decoding performance of the data part will be seriously deteriorated
[0011] In summary, the utilization rate of HS-SICH channel resources in the prior art is low, and the quality of signals received through HS-SICH is poor

Method used

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  • Method and device for receiving information by high speed shared information channels (HS-SICH)
  • Method and device for receiving information by high speed shared information channels (HS-SICH)
  • Method and device for receiving information by high speed shared information channels (HS-SICH)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The current standard stipulates that HS-SCCH and HS-SICH have a one-to-one correspondence relationship, and the correspondence relationship and the time slot code channels occupied by HS-SCCH and HS-SICH are notified to the base station and UE by high-layer signaling. In this embodiment, a one-to-many correspondence between HS-SCCH and HS-SICH is preset, that is, each HS-SCCH corresponds to multiple HS-SICHs. That is, it is preset that each HS-SCCH corresponds to N HS-SICHs (N>1), and one of the HS-SICHs is set as the primary HS-SICH.

[0054] When the cell is established and the radio link of the user equipment is established, the radio network controller (RNC) notifies the Node B and the UE of the configuration information of the HS-SCCH and HS-SICH through high-level signaling, including: HS-SCCH and HS-SICH Correspondence of SICH, and information such as time slot code channel occupied by HS-SCCH and HS-SICH.

[0055] Node B schedules the user equipment that is con...

Embodiment 2

[0065] In this embodiment, resource offset processing is performed on HS-SICHs of multiple SDMA user equipments in each group. That is, when the user equipment accesses the cell, the RNC notifies the UE and the base station of configuration information about the HS-SCCH and HS-SICH through radio resource control (RRC) signaling, including: the correspondence between HS-SCCH and HS-SICH, HS - the time slot code channels occupied by SCCH and HS-SICH, and the number K of channel estimation windows.

[0066] The Node B schedules the accessed user equipments. If multiple user equipments in the cell meet the SDMA pairing and grouping conditions, these user equipments are grouped, and each group of user equipments is space-separated for the control channel. UEs in each group Use the same HS-SCCH. Each UE in each group will be assigned by the Node B to explicitly notify by adding signaling bits on the HS-SCCH, or by implicitly notifying by the status of unused signaling bits on the H...

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Abstract

The invention discloses a method and a device for receiving information by high speed shared information channels (HS-SICH), which are used for improving the utilization rate of HS-SICH resources and the signal receiving quality of the HS-SICH. The method for receiving the information by the HS-SICHs comprises that: a base station allocates an identical high speed shared control channel (HS-SCCH)for each user equipment in each group obtained by grouping according to space division multiple access (SDMA) pairing grouping conditions, and allocates a plurality of different HS-SICHs for the userequipment in the group; and for the user equipment in each group, the base station indicates the user equipment in the group by the HS-SCCHs allocated for the user equipment to transmit the information to the base station by adopting the HS-SICHs allocated for the user equipment, and simultaneously receives the information from the user equipment in the group by the plurality of different HS-SICHs.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for receiving information through a High Speed ​​Shared Information Channel (HS-SICH). Background technique [0002] Space Division Multiple Access (SDMA, Space Division Multiple Access) technology, that is, space division multiple access technology, utilizes the spatial freedom provided by multiple antennas to control multiple user equipment occupying the same resource (time slot, code channel, frequency) (UE) to distinguish, so as to realize the data sending and receiving of multiple user equipments. Through SDMA technology, the average data transmission rate of the cell can be increased. [0003] The way to realize SDMA is related to the multi-antenna technology adopted. In the smart antenna array, multi-beamforming technology is used for space division of multi-user equipment, and multiple main beams are aimed at the user equipment occupyi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W28/02H04B7/02
Inventor 杨宇
Owner DATANG MOBILE COMM EQUIP CO LTD
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