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US 9,432,980 B2Granted
Apparatus and method for indicating uplink resource allocation in broadband wireless communication system
AssigneeSamsung Electronics Co., Ltd.
InventorsMi-Hyun Lee, Hyun-Kyu Yu
Life of this patent
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Abstract
An apparatus and a method for indicating uplink resource allocation in a broadband wireless communication system are provided. The method includes decoding an UpLink (UL) resource allocation Information Element (IE) in a received DownLink (DL) subframe, extracting an indicator field value from the decoded UL resource allocation IE, the indicator field value indicating a Transmission Time Interval (TTI) type for a resource allocated to the terminal and a UL subframe location, and transmitting UL data through a resource allocated to the terminal based on the extracted indicator field value.
Claims14
An operating method of a terminal in a wireless communication system, the operating method comprising:
- receiving uplink (UL) resource allocation information through a downlink (DL) subframe;
- identifying at least one UL subframe corresponding to the DL subframe based on a ratio of the DL to the UL;
- identifying, based on the UL resource allocation information, a number of the at least one UL subframe, and at least one index of the at least one UL subframe, a 2-bit value indicating a transmission time interval (TTI) type and a location of one UL subframe within the at least one UL subframe;
- and
- transmitting UL data based on the location of the UL subframe and the TTI type indicated by the 2-bit value of the UL resource allocation information,
- wherein the 2-bit value is set to one of:
- ‘00’ indicating that the TTI type is a long TTI,
- ‘01’ indicating that the TTI type is a default TTI and a first UL subframe within the at least one UL subframe,
- ‘10’ indicating that the TTI type is the default TTI and a second UL subframe within the at least one UL subframe, and
- ‘11’ indicating that the TTI type is the default TTI and a third UL subframe within the at least one UL subframe.
7 more elements
An operating method of a base station in a wireless communication system, the operating method comprising:
- encoding uplink (UL) resource allocation information including a 2-bit value indicating a transmission time interval (TTI) type and a location of one UL subframe within at least one UL subframe;
- and
- transmitting the UL resource allocation information to a terminal through a downlink (DL) subframe;
- and
- receiving UL data based on the location of the UL subframe and the TTI type indicated by the 2-bit value,
- wherein the 2-bit value is identified, by the terminal, based on the UL resource allocation information, a number of the at least one UL subframe, and at least one index of the at least one UL subframe corresponding to the DL subframe, and
- wherein the 2-bit value is set to one of:
- ‘00’ indicating that the TTI type is a long TTI,
- ‘01’ indicating that the TTI type is a default TTI and a first UL subframe within the at least one UL subframe,
- ‘10’ indicating that the TTI type is the default TTI and a second UL subframe within the at least one UL subframe, and
- ‘11’ indicating that the TTI type is the default TTI and a third UL subframe within the at least one UL subframe.
8 more elements
An apparatus of a terminal in a wireless communication system, the apparatus comprising:
- a receiver configured to receive uplink (UL) resource allocation through a downlink (DL) subframe;
- and
- a processor configured to identify at least one UL subframe corresponding to the DL subframe based on a ratio of the DL to the UL, identify, based on the UL resource allocation information, a number of the at least one UL subframe, and at least one index of the at least one UL subframe, a 2-bit value indicating a transmission time interval (TTI) type and a location of one UL subframe within at least one UL subframe;
- and
- a transmitter configured to transmit UL data based on the location of the UL subframe and the TTI type indicated by the 2-bit value of the UL resource allocation information,
- wherein the 2-bit value is set to one of:
- ‘00’ indicating that the TTI type is a long TTI,
- ‘01’ indicating that the TTI type is a default TTI and a first UL subframe within the at least one UL subframe,
- ‘10’ indicating that the TTI type is the default TTI and a second UL subframe within the at least one UL subframe, and
- ‘11’ indicating that the TTI type is the default TTI and a third UL subframe within the at least one UL subframe.
7 more elements
An apparatus of a base station in a wireless communication system, the apparatus comprising:
- a processor configured to encode uplink (UL) resource allocation information including a 2-bit value indicating a transmission time interval (TTI) type and a location of one UL subframe within at least one UL subframe;
- and
- a transmitter configured to transmit the UL resource allocation information to a terminal through the a downlink (DL) subframe, and to receive UL data based on the location of the UL subframe and the TTI type indicated by the 2-bit value,
- wherein the 2-bit value is identified, by the terminal, based on the UL resource allocation information, a number of the at least one UL subframe, and at least one index of the at least one UL subframe corresponding to the DL subframe,
- wherein the 2-bit value is set to one of:
- ‘00’ indicating that the TTI type is a long TTI,
- ‘01’ indicating that the TTI type is a default TTI and a first UL subframe within the at least one UL subframe,
- ‘10’ indicating that the TTI type is the default TTI and a second UL subframe within the at least one UL subframe, and
- ‘11’ indicating that the TTI type is the default TTI and a third UL subframe within the at least one UL subframe.
6 more elements
Dependencies are inferred from the claim text.