Orthogonal variable spreading factor channelization codes are widely used to provide variable data rates for supporting different bandwidth requirements in wideband code division multiple access (WCDMA) systems. A new...Orthogonal variable spreading factor channelization codes are widely used to provide variable data rates for supporting different bandwidth requirements in wideband code division multiple access (WCDMA) systems. A new code match scheme for WCDMA code tree management was proposed. The code match scheme is similar to the existing crowed-first scheme. When choosing a code for a user, the code match scheme only compares the one up layer of the allocated codes, unlike the crowed-first scheme which perhaps compares all up layers. So the operation of code match scheme is simple, and the average time delay is decreased by 5.1%. The simulation results also show that the code match strategy can decrease the average code blocking probability by 8.4%.展开更多
Using the "matching extent" method,this article conducts a multi-perspective analysis on the compatibility of the investment strategies of the western region and MNCs,as well as national policies on foreign ...Using the "matching extent" method,this article conducts a multi-perspective analysis on the compatibility of the investment strategies of the western region and MNCs,as well as national policies on foreign investment. Research indicates that low matching extent amongst the above three decision-makers is an important reason for the disadvantage of the western region in terms of FDI attraction,and this situation will not change in the short term. In addition,this article also sheds light on how to increase matching extent.展开更多
基金Supported by the "Liaoning Baiqianwan" Talents Program(No.200718625)the Program of Scientific Research Project of Liao Ning Province Education Commission(No.LS2010046)the National Commonweal Industry Scientific Research Project(No.201003024)
基金Project(60202005) supported by the National Natural Science Foundation of China
文摘Orthogonal variable spreading factor channelization codes are widely used to provide variable data rates for supporting different bandwidth requirements in wideband code division multiple access (WCDMA) systems. A new code match scheme for WCDMA code tree management was proposed. The code match scheme is similar to the existing crowed-first scheme. When choosing a code for a user, the code match scheme only compares the one up layer of the allocated codes, unlike the crowed-first scheme which perhaps compares all up layers. So the operation of code match scheme is simple, and the average time delay is decreased by 5.1%. The simulation results also show that the code match strategy can decrease the average code blocking probability by 8.4%.
文摘Using the "matching extent" method,this article conducts a multi-perspective analysis on the compatibility of the investment strategies of the western region and MNCs,as well as national policies on foreign investment. Research indicates that low matching extent amongst the above three decision-makers is an important reason for the disadvantage of the western region in terms of FDI attraction,and this situation will not change in the short term. In addition,this article also sheds light on how to increase matching extent.