Patent ID: 8837351
Filing Date: 2014-09-16
Classification: H04W

Abstract:
1. A method for setting a Happy bit on an uplink E-DCH dedicated physical control channel, comprising: transmitting an Enhanced Dedicated Channel (E-DCH) by a User Equipment (UE) on more than one carrier, when criterion 1 and criterion 2 are met, setting a Happy bit which is to be transmitted to a network side as “UNHAPPY” by the UE to indicate that the UE does not satisfy with current serving grant; wherein the criterion 1 and criterion 2 are as follows: criterion 1: data that the UE is transmitting on the any one of the more than one carrier is as much as maximum scheduled data allowed by current serving grant in Enhanced Uplink Transmission Format Combination (E-TFC) selection on the carrier, and the UE has enough power on the any one of the more than one carrier to transmit data at higher rate; and criterion 2: in a Transmission Time Interval (TTI) same as the Happy bit, data is transmitted based on a power offset the same as a power offset selected in current E-TFC selection and with a sum of transmission factors on each carrier, the transmission factor on each carrier being obtained by multiplying the serving grant of the carrier by a ratio of number of active hybrid automatic repeat request processes to a total number of hybrid automatic repeat request processes, and Total E-DCH Buffer Status (TEBS) would require a time longer than Happy Bit Delay_Condition; wherein the more than one carrier includes a primary carrier and an secondary carrier, wherein data that the UE is transmitting on the primary carrier and the secondary carrier is respectively as much as maximum scheduled data allowed by current serving grant in E-TFC selection on the primary carrier and the secondary carrier, and the UE has enough power on the primary carrier and the secondary carrier to send data at higher rate when two criteria below are met: a) if MAC-i/is is configured, E-TFC of the primary carrier and E-TFC of the secondary carrier are identified, making a sum of a first transport block size of the identified E-TFC on the primary carrier and a second transport block size of the identified E-TFC on the secondary carrier larger than a sum of a first transport block size of a selected E-TFC on the primary carrier and a second transport block size of a selected E-TFC on the secondary carrier in the TTI same as the Happy bit by at least a given value which is greater than or equal to 16 bits; and if MAC-i/is is not configured, E-TFC of the primary carrier and E-TFC of the secondary carrier are identified, making a sum of a first transport block size of the identified E-TFC on the primary carrier and a second transport block size of the identified E-TFC on the secondary carrier larger than a sum of a first transport block size of the selected E-TFC on the primary carrier and a second transport block size of a selected E-TFC on the secondary carrier in the TTI same as the Happy bit by at least X bits, wherein X is a smallest RLC PDU size configured among all logical channels which belong to scheduled MAC-d flows and have data in buffer; and b) in the TTI same as the Happy bit, data is transmitted based on a power offset the same as a power offset selected in E-TFC selection, and E-TFC of the primary carrier and E-TFC of the secondary carrier, which are identified in criterion a), are supported.