Optimal cell identification feedback method and internal node B fast cell selecting method

A cell identification, the best technology, applied in the direction of selection device, radio/inductive link selection arrangement, error prevention/detection using return channel, etc., can solve problems such as feedback, and achieve the effect of improving efficiency

Inactive Publication Date: 2008-11-12
ZTE CORP
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Problems solved by technology

[0018] It can be seen that since the HS-SICH channel does not have a data field for transmitting the best cell identification information, this information cannot be fed back from the UE to the NodeB in the form of physical layer signaling, and thus it is impossible to implement NodeB based on this information. Fast cell selection within

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  • Optimal cell identification feedback method and internal node B fast cell selecting method
  • Optimal cell identification feedback method and internal node B fast cell selecting method
  • Optimal cell identification feedback method and internal node B fast cell selecting method

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Embodiment Construction

[0045] study image 3 As shown in the slot format of the HS-SICH channel, it can be found that although the uplink SS information field has not been used yet, under the existing specification, it only has a data width of 2 bits, which is not enough to fill in the cell identification information. Therefore, if the SS information field can be modified to have a width consistent with the bits of the cell identification information, then this data field can be used to convey the best cell identification information.

[0046] In the TD-SCDMA system, the user equipment establishes a mapping relationship between a cell ID (Cell ID) and a temporary cell ID (Temporary Cell ID) in a NodeB through a radio network controller (RNC). When the UE enters a multi-cell area, the RNC can notify the UE of the Temporary Cell ID through a corresponding message. Assuming that the data width of the Temporary Cell ID is N bits (N≥2), a total of 2 cells in a NodeB can be identified. N cells, and N=4 ...

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Abstract

A method for feeding optimum cell identification ( OCI ) back and fast selection method of cell in node B includes measuring down link channel quality of multicell by user device and feeding OCI back to node B through synchronous offset domain in high speed common shared information channel , comparing it with temporary cell identification by dispatching controller controlled by source cell high speed media access in node B , setting up communication channel between object cells corresponding to OCI by dispatching controller if the two are not the same , then transmitting state information to object cell being used to finalize data transmission as per state information .

Description

technical field [0001] The present invention relates to the technical field of digital mobile communication, in particular to the third generation Time Division Duplex Synchronous Code Division Multiple Access (TD-SCDMA) system, which feeds back the best cell identifier from user equipment to Node B, and realizes Node B ( A method for fast cell selection in Node-B). Background technique [0002] Release 5 of the TD-SCDMA system introduces the feature of High Speed ​​Downlink Packet Access (HSDPA: High Speed ​​Downlink Packet Access), the purpose of which is to provide a higher rate downlink packet service and increase the downlink capacity. Based on the UMTS R4 architecture, HSDPA achieves the above goals by introducing technologies such as Adaptive Modulation and Coding (AMC), Hybrid Automatic Retransmission Request (HARQ: Hybrid Automatic Retransmission Request) and Fast Cell Selection (FCS: Fast Cell Selecion) . [0003] AMC: It is a data transmission strategy that adap...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04Q7/38H04L1/16H04L1/00H04W36/08H04W36/30
Inventor 杨学君马子江张银成马志锋
Owner ZTE CORP
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