US2017257834A1PendingUtilityA1

Transport format combination selecting method, wireless communication system, and mobile station

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Assignee: NEC CORPPriority: Jun 11, 2004Filed: May 22, 2017Published: Sep 7, 2017
Est. expiryJun 11, 2024(expired)· nominal 20-yr term from priority
Inventors:Nahoko KurodaKojirou HamabeJinsock Lee
H04W 72/541H04W 52/50H04W 24/10H04W 52/367H04L 1/0002H04L 1/0015H04W 52/34H04W 52/16H04W 52/267H04W 72/082
58
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Claims

Abstract

Methods of selecting a transport format combination are provided. For example, a method comprises calculating the transmission power of a first physical channel using each of first TFCs, and determines whether a mobile station is in a transmission capable state. The method also comprises calculating the sum of the transmission power of first and second physical channels using first and second TFCs, with respect to each of combinations of first and second TFCs, and determines whether the mobile station is in the transmission capable state. The method also comprises selecting first TFC from the first TFCs wherein the mobile station is in the transmission capable state and selecting a second TFC from the second TFCs which are included in combinations wherein the mobile station is in the transmission capable state among the combinations including the selected first TFC. The data is transmitted using the selected first and second TFCs, respectively.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A method of selecting a TFC (transport format combination) for transmitting a data of an enhanced uplink channel, comprising:
 receiving an information related to a TFC set;   setting each TFC's state, which TFC is included in the TFC set, to a support state, excess-power state or block state;   selecting the TFC from the support state or the excess-power state TFC;   calculating a first value related to a remaining power, by subtracting a second value related to a transmission power of a signal of DPCCH, from a third value related with a maximum UE (User Equipment) transmitter power; and   determining that the TFC for the enhanced uplink channel can be used or not based on the first value.   
     
     
         2 . The method according to  claim 1 , wherein the transmission power is currently measured. 
     
     
         3 . The method according to  claim 1 , wherein the transmission power is measured during a period of one transmission time unit. 
     
     
         4 . The method according to  claim 1  further comprising:
 preventing from using the TFC for a transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC cannot be used. 
 
     
     
         5 . The method according to  claim 4  further comprising:
 determining that a TFC for the enhanced uplink channel can be used, in a case where a fourth value is smaller than the first value, where the fourth value relates to a transmission power of the data of the enhanced uplink channel. 
 
     
     
         6 . The method according to  claim 1  further comprising:
 using the TFC for the transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC can be used. 
 
     
     
         7 . The method according to  claim 1 , wherein the enhanced uplink channel is used for transmitting a high-speed data. 
     
     
         8 . The method according to  claim 1 , wherein the signal currently transmitted is on the dedicated physical channel (DPCH). 
     
     
         9 . The method according to the  claim 1 , wherein the DPCCH is regarding to the selected TFC. 
     
     
         10 . A user equipment for selecting a TFC (transport format combination) for transmitting a data of an enhanced uplink channel, comprising:
 a memory: and   a processor comprising hardware configured to:
 calculate a first value related to a remaining power, by subtracting a second value related to a transmission power of a signal of DPCCH, from a third value related with a maximum UE (User Equipment) transmitter power; and 
 determine that the TFC for the enhanced uplink channel can be used or not based on the first value. 
   
     
     
         11 . The user equipment according to  claim 10 , wherein the transmission power is currently measured. 
     
     
         12 . The user equipment according to  claim 10 , wherein the transmission power is measured during a period of one transmission time unit. 
     
     
         13 . The user equipment according to  claim 10  wherein the processor comprising hardware is further configured to prevent from using the TFC for a transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC cannot be used. 
     
     
         14 . The user equipment according to  claim 13  wherein the processor comprising hardware is further configured to determine that a TFC for the enhanced uplink channel can be used, in a case where a fourth value is smaller than the first value, where the fourth value relates to a transmission power of the data of the enhanced uplink channel. 
     
     
         15 . The user equipment according to  claim 10  wherein the processor comprising hardware is further configured to use the TFC for the transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC can be used. 
     
     
         16 . The user equipment according to  claim 10 , wherein the enhanced uplink channel is used for transmitting a high-speed data. 
     
     
         17 . The user equipment according to  claim 10 , wherein the signal currently transmitted is on the dedicated physical channel (DPCH). 
     
     
         18 . The user equipment according to  claim 10 , wherein the DPCCH is regarding to the selected TFC. 
     
     
         19 . A user equipment for selecting a TFC (transport format combination) for transmitting a data of an enhanced uplink channel, comprising:
 a memory: and   a processor comprising hardware configured to:
 receive an information related to TFC set; 
 setting each TFC's state, which TFC is included in the TFC set, to support state, excess-power state or block state; 
 select the TFC from the support state or the excess-power state TFC; 
 calculate a first value related to a remaining power, by subtracting a second value related to a transmission power of a signal of DPCCH, from a third value related with a maximum UE (User Equipment) transmitter power; and 
 determine that the TFC for the enhanced uplink channel can be used or not based on the first value. 
   
     
     
         20 . The user equipment according to  claim 19 , wherein the transmission power is currently measured. 
     
     
         21 . The user equipment according to  claim 19 , wherein the transmission power is measured during a period of one transmission time unit. 
     
     
         22 . The user equipment according to  claim 19  wherein the processor comprising hardware is further configured to prevent from using the TFC for a transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC cannot be used. 
     
     
         23 . The user equipment according to  claim 22  wherein the processor comprising hardware is further configured to determine that a TFC for the enhanced uplink channel can be used, in a case where a fourth value is smaller than the first value, where the fourth value relates to a transmission power of the data of the enhanced uplink channel. 
     
     
         24 . The user equipment according to  claim 19  wherein the processor comprising hardware is further configured to use the TFC for the transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC can be used. 
     
     
         25 . The user equipment according to  claim 19 , wherein the enhanced uplink channel is used for transmitting a high-speed data. 
     
     
         26 . The user equipment according to  claim 19 , wherein the signal currently transmitted is on the dedicated physical channel (DPCH). 
     
     
         27 . The user equipment according to  claim 19 , wherein the DPCCH is regarding to the selected TFC. 
     
     
         28 . A base station comprising:
 a receiving unit configured to receive a data of an enhanced uplink channel using a TFC (transport format combination),   wherein an information related to TFC set, is received, by a user equipment, wherein each TFC's state, is set by a user equipment, which TFC is included in the TFC set, to support a state, excess-power state or block state;   wherein the TFC is selected, by the user equipment, from the support state or the excess-power state TFC,   wherein the TFC is determined, by the user equipment, for use in transmission of the data, based on a first value related to a remaining power,   wherein the first value is calculated, by the user equipment, by subtracting a second value related to a transmission power of a signal of DPCCH, from a third value related with a maximum UE (User Equipment) transmitter power.   
     
     
         29 . The base station according to  claim 28 , wherein the transmission power is currently measured. 
     
     
         30 . The base station according to  claim 28 , wherein the transmission power is measured during a period of one transmission time unit. 
     
     
         31 . The base station according to  claim 28  wherein the processor comprising hardware is further configured to prevent from using the TFC for a transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC cannot be used. 
     
     
         32 . The base station according to  claim 31  wherein the processor comprising hardware is further configured to determine that a TFC for the enhanced uplink channel can be used, in a case where a fourth value is smaller than the first value, where the fourth value relates to a transmission power of the data of the enhanced uplink channel. 
     
     
         33 . The base station according to  claim 28  wherein the processor comprising hardware is further configured to use the TFC for the transmission of the data of the enhanced uplink channel in a case where it is determined that the TFC can be used. 
     
     
         34 . The base station according to  claim 28 , wherein the enhanced uplink channel is used for transmitting a high-speed data. 
     
     
         35 . The base station according to  claim 28 , wherein the signal currently transmitted is on the dedicated physical channel (DPCH). 
     
     
         36 . The base station according to  claim 28 , wherein the DPCCH is regarding to the selected TFC.

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