发明授权
US08144720B2 Uplink radio resource allocation in the presence of power limited users
有权
在电力限制用户面前上行无线电资源分配
- 专利标题: Uplink radio resource allocation in the presence of power limited users
- 专利标题(中): 在电力限制用户面前上行无线电资源分配
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申请号: US12429468申请日: 2009-04-24
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公开(公告)号: US08144720B2公开(公告)日: 2012-03-27
- 发明人: Havish Koorapaty , Rajaram Ramesh , Kumar Balachandran
- 申请人: Havish Koorapaty , Rajaram Ramesh , Kumar Balachandran
- 申请人地址: SE Stockholm
- 专利权人: Telefonaktiebolaget L M Ericsson (PUBL)
- 当前专利权人: Telefonaktiebolaget L M Ericsson (PUBL)
- 当前专利权人地址: SE Stockholm
- 主分类号: H04Q11/02
- IPC分类号: H04Q11/02
摘要:
A base station in an OFDMA system which determines a modulation and coding scheme to use for a packet of a certain size to be transmitted by a Mobile Station. The base station schedules transmissions by mobile stations and transmits packets. The base station includes a processing unit which determines a number of time-frequency resources required to transmit the packet for a modulation and coding scheme, determines an SINR based on the number of time-frequency resources used and available power at the mobile station, determines a transmission rate as a ratio of the packet size transmitted to the number of time-frequency resources used, sets a rate to zero if the determined SINR is lower than a threshold SINR required for the modulation and coding scheme, and selects the modulation and coding scheme with a highest transmission rate. The base station includes a memory storing modulation and coding schemes.