LTE Resource Grid Tool is updated to version 1.4, please find release notes as following.
Date
Release Notes
2012/4/12
Current version is V1.0, only LTE downlink resource grid is implemented. Next version shall cover LTE uplink as well.
Any questions concerning usage of the tool, please feel free to contact: jeffyko@C114.
2012/4/23
Updated to version 1.1, including:
1. fully support of LTE uplink resource grid which can be found in "UL Rresource Grid" sheet.
2. note 1, the uplink parameters can be found in 3GPP 36.331; note 2, PRACH configuration is a little tricky, please refer to "PRACH Configuration" sheet and possibly 3GPP 36.211; note 3, PRB number of PUCCH is the maximum resources required, and the unused PUCCH regions are assumed to be allocated to PUSCH; note 4, no UE-specific parameters are included in SRS, and only one cell-specific parameter: srs-SubframeConfig is considered.
3. Error-checking abillity of the tool is weak, so please make sure the configured parameters are within the valid ranges. Whenever error happens, the result is undefined.
2012/10/30
Updated to version 1.2, including a bugfix:
1. The PRACH RE mapping for TDD is incorrect if the "Density per 10ms" is bigger than 1 and the first PRB for PRACH calculated according to 36.211 is confilict with the reserved PUCCH region calculated according to 36.211/36.213. Thanks to matrowang@C114.
2013/2/17
Updated to version 1.3, including additional function:
1. Now PUCCH region information will be shown, which can be used in PUCCH dimensioning.
2013/6/11
Updated to version 1.4, including two bugfixes:
1. PBCH mapping: according to 36.211, PBCH mapping always assumes 4 antenna ports, irrespective of the actual configuration; and the unused resources are reserved and cann't be used for PDSCH.
2. PUCCH assignment in TDD: according to 36.213, in case of UL/DL configuration #0, the subframe #3 and #8 cann't be used for ACK feedback, although they are normal uplink subframes.
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发表于 2014-8-2 09:17:40
