Patent ID: 6754229
Filing Date: 2004-06-22
Classification: H04W

Abstract:
A method of allocating bits over a channel, said method comprising:assigning a bit associated with a position R1 in a bit stream of at least two frames of at least one time slot of the channel, wherein the R1 has the following relation: R1=&LeftFloor;NÃ—((40503Ã—(L&CirclePlus;H&CirclePlus;DECORR1))&it;mod&it;â€ƒ&it;216)/216&RightFloor;,&NewLine;&it;â€ƒ&it;DECORR1=&LeftFloor;t64&RightFloor;&it;mod&it;â€ƒ&it;216andfurther assigning a bit associated with a position R2 in the bit stream of at least two further frames of the at least one time slot of the channel, wherein the R2 has the following relation: R2=N+M+&LeftFloor;2Ã—R1N+M&RightFloor;Ã—(N+M2)+((L10+M+1210Ã—S+R1)&it;mod&it;â€ƒ&it;S)S=&LeftFloor;((1-&LeftFloor;2Ã—R1N+M&RightFloor;)Ã—(N+M2)+&LeftFloor;2Ã—R1N+M&RightFloor;Ã—(N-M2))&RightFloor;wherein M is a number of reserved and configuration change indicator (â€œCCIâ€ ) bits associated with the bit associated with the R1 and the further bit associated with the R2 in the at least one time slot, N is a total number of paging indicator (â€œPIâ€ ) bits associated with the bit associated with the R1 or the further bit associated with the R2 in the at least two frames of the at least one time slot, L is a numerical value indicative of bits 0-15 of an encoded International Mobile Station Identity (IMSI) of a phone number, H is a numerical value indicative of bits 16-31 of the encoded IMSI of the phone number, S is tie size of PI bits associated with the bit associated with the further bit R2 in a first frame or a second frame of the at least two frames, L10 is a numerical value indicative of bits 0-9 of the encoded IMSI of the phone number, DECORR1 is a numerical value that indicates a change of location of the bit associated with R1 with respect to the t, and the t is a numerical value indicative of a number of 20 ms intervals from Jan. 6, 1980, 12:00 am.