1. A method for transmitting coordinated multi-point (CoMP) feedback information at a base station (BS) in a wireless communication system, the method comprising:
receiving a message from a user equipment (UE), the message requesting one or more neighboring cells, which perform a CoMP operation, to restrict use of a beam pattern group in a specific direction;
determining the beam pattern group in a specific direction to be restricted per neighboring cell based on the received message; and
transmitting a message to the one or more neighboring cells that perform the CoMP operation, the message requesting to restrict use of the determined beam pattern group in the specific direction.
2. The method of claim 1, further comprising:
receiving cell ID (identifier) information of the one or more neighboring cells from the user equipment.
3. The method of claim 1, wherein the restriction request message of the beam pattern group from the user equipment is received through a physical uplink control channel (PUCCH), a physical uplink shared channel (PUSCH), or radio resource control (RRC) message.
4. The method of claim 1, further comprising:
performing scheduling per the neighboring cell for a specific resource to be restricted use of the determined specific beam pattern group.
5. The method of claim 4, wherein the specific resource corresponds to any one of one subframe, one slot, two or more subframes, and two or more slots.
6. A method for transmitting coordinated multi-point (COMP) feedback information at a base station (BS) in a wireless communication system, the method comprising:
receiving information about channel status from a user equipment (UE); and
comparing the received information with a predefined threshold value, and transmitting a message to one or more neighboring cells that perform a CoMP operation, the message requesting the one or more neighboring cells to restrict use of a beam pattern group.
7. The method of claim 6, wherein a value of the channel status is determined using channel status information with the user equipment or information about interference level generated by the one or more neighboring cells that perform the CoMP operation.
8. The method of claim 7, wherein the information about interference level is aligned in the order of interference level.
9. The method of claim 7, further comprising:
transmitting the received information about interference level generated by the one or more neighboring cells to the one or more the neighboring cells.
10. A method for transmitting coordinated multi-point (CoMP) feedback information at a user equipment (UE) in a wireless communication system, the method comprising:
comparing a value of channel status with a serving cell or an interference level measured from one or more neighboring cells that perform a CoMP operation with a predefined threshold value; and
transmitting a message to a serving base station, the message requesting the one or more neighboring cells to restrict use of a specific beam pattern group when the value of the channel status or the interference level of the one or more neighboring cells is not better than the threshold value.
11. The method of claim 10, further comprising:
transmitting cell ID information of the one or more neighboring cells to the serving base station.
12. A base station (BS) for transmitting coordinated multi-point (CoMP) feedback information in a wireless communication system, the BS comprising:
a receiving module for receiving a message from a user equipment (UE), the message requesting one or more neighboring cells, which perform a CoMP operation, to restrict use of a beam pattern group in a specific direction;
a processor for determining the beam pattern group in a specific direction to be restricted per neighboring cell based on the received message; and
a transmitting module for transmitting a message to the one or more neighboring cells that perform the CoMP operation, the message requesting to restrict use of the determined beam pattern group in the specific direction.
13. An user equipment (UE) for transmitting coordinated multi-point (CoMP) feedback information at a user equipment (UE) in a wireless communication system, the UE comprising:
a processor for comparing a value of channel status with a serving cell or an interference level measured from one or more neighboring cells that perform a CoMP operation with a predefined threshold value; and
a transmitting module for transmitting a message to a serving base station, the message requesting the one or more neighboring cells to restrict use of a specific beam pattern group when the value of the channel status or the interference level of the one or more neighboring cells is not better than the threshold value.
14. A base station (BS) for transmitting coordinated multi-point (CoMP) feedback information in a wireless communication system, the BS comprising:
a receiving module for information about channel status from a user equipment (UE);
a processor for comparing the received information with a predefined threshold value; and
a transmitting module for transmitting a message to one or more neighboring cells that perform a CoMP operation, the message requesting the one or more neighboring cells to restrict use of a beam pattern group.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A nail magazine for a power nail-driving tool which has a reciprocating driving member defining a stroke path, said nail magazine being adapted for accommodating a strip of U-shaped nails and a strip of L-shaped nails, and comprising:
an elongated magazine unit which has a front discharging end adapted to confront the stroke path of the driving member, and which is elongated from said front discharging end in a lengthwise direction that is transverse to the stroke path of the driving member to terminate at a rear end, said magazine unit defining
first and second parallel channels which are elongated in the lengthwise direction through said front discharging end, which are spaced apart from each other in a transverse direction that is transverse to both the stroke path and the lengthwise direction, and which extend in a longitudinal direction parallel to the stroke path to terminate at two channel ends,
a first transverse channel which is elongated in the lengthwise direction through said front discharging end, which extends in the transverse direction to intercommunicate said channel ends, and which cooperates with said first and second parallel channels to form a U-shaped nail loading slot adapted to receive the strip of U-shaped nails therein and extending through said front discharging end such that the first U-shaped nail is extendable beyond said front discharging end and into the stroke path, and
a second transverse channel which is elongated in the lengthwise direction through said front discharging end, and which extends from said second parallel channel towards said first parallel channel in the transverse direction so as to cooperate with said second parallel channel to form an L-shaped nail loading slot adapted to receive the strip of L-shaped nails therein and extending through said front discharging end such that the first L-shaped nail is extendable beyond said front discharging end and into the stroke path;
a guide member which confronts said front discharging end of said elongated magazine unit and which cooperates with said front discharging end to define the stroke path of the driving member, said guide member having two guiding walls which extend in the longitudinal direction, and which define therebetween a guiding slot that is adapted to guide the reciprocating driving member to move along the stroke path, said guiding slot being dimensioned such that the first U-shaped nail is guided between said guiding walls so as to move along the stroke path, said guiding slot extending in the lengthwise direction to terminate at a sliding surface, said sliding surface defining a retreat bore which extends in the longitudinal direction; and
a guide bar having a secured end which is mounted in said retreat bore, and a guiding portion which extends from said secured end in the longitudinal direction and which is disposed to cooperate with one of said guiding walls to guide movement of the first L-shaped nail, said guide bar being configured such that said guiding portion is urged toward a guiding position, where said guiding portion is raised above said sliding surface, and such that said guiding portion is depressed to a retreating position, where said guiding portion is retreated into said retreat bore by a sweeping force imparted by a striking movement of the driving member along the stroke path.
2. The nail magazine of claim 1, wherein said elongated magazine unit includes
a magazine body which is adapted to be secured to the power nail-driving tool and which has said front discharging end and said rear end, and
a sliding shell which is slidable relative to said magazine body in the lengthwise direction,
said magazine body having first and second parallel walls which are spaced apart from each other in the transverse direction to define said first parallel channel therebetween, said sliding shell having a lateral wall which is spaced apart from said first parallel wall to define said second parallel channel therebetween, and a top wall which is spaced apart from said first parallel wall to define said first transverse channel.
3. The nail magazine of claim 2, wherein said elongated magazine unit includes a magnet which is disposed on said first parallel wall and which confronts said lateral wall to help hold the L-shaped nails in said second parallel channel.
4. The nail magazine of claim 2, further comprising a locking mechanism which includes
a retained member that is secured to said magazine body adjacent to said rear end, and
an engaging member that is disposed on said sliding shell, and that is releasably engaged with said retained member when said sliding shell approaches said front discharging end so as to retain said sliding shell relative to said magazine body.
5. The nail magazine of claim 4, wherein said engaging member has a fulcrum pivoted to said sliding shell, and pressed and engaging ends opposite to each other, said locking mechanism further including a biasing member which is disposed to bias said pressed end to an engaging position, where said engaging end engages said retained member, and a push button which is operable manually to press said pressed end against a biasing action of said biasing member to enable said engaging end to disengage from said retained member.
6. The nail magazine of claim 2, further comprising a nail pushing mechanism which includes a biasing unit that is received in said sliding shell, and a pusher plate that is disposed on and movable relative to said sliding shell and that is biased by said biasing member such that said pusher plate extends forwardly of said sliding shell into said second parallel channel so as to urge the first nail into the stroke path when said sliding shell approaches said front discharging end.
7. The nail magazine of claim 1, wherein said guiding bar has a ramp segment which has an initial region that is disposed proximate to said secured end and below said sliding surface so as not to interfere with displacement of the first U-shaped nail in the stroke path.