Signalling for coordinated multi-point transmission and reception (CoMP)
View Patent ↗In a wireless communications system including a first transmission point and a second transmission point, a wireless communications method implemented in the first transmission point supporting coordinated multi-point transmission and reception (CoMP) is disclosed. The wireless communications method comprises transmitting to the second transmission point one or more CoMP hypothesis sets, and transmitting to the second transmission point a benefit metric corresponding to each CoMP hypothesis set, wherein the benefit metric can be a negative value. Other methods, systems, and apparatuses also are disclosed.
1. A wireless communications method implemented in a first transmission point supporting coordinated multi-point transmission and reception (CoMP), the wireless communications method comprising:
transmitting to a second transmission point one or more CoMP hypothesis sets; and
transmitting to the second transmission point a benefit metric corresponding to each CoMP hypothesis set,
wherein the benefit metric can be a negative value and is transmitted according to a table comprising:
IE/Group Name
Presence
Range
CoMP Information Item
1 . . .
<maxnoofCoMPInformation>
>CoMP Hypothesis Set
M
>Benefit Metric
M
Start SFN
Start Subframe Index
where M denotes mandatory, and maxnoofCoMPinformation denotes a Maximum number of CoMP Hypothesis sets.
2. The wireless communications method as in claim 1 , wherein the benefit metric indicates a loss or cost when the benefit metric is the negative value.
3. The wireless communications method as in claim 1 , wherein the benefit metric is calculated on a linear scale.
4. The wireless communications method as in claim 1 , wherein the first transmission point adds up gain, benefit, loss, or cost values that the first transmission point receives for suggested actions, and adds a gain, benefit loss, or cost that the first transmission point obtains upon following the suggested actions.
5. The wireless communications method as in claim 1 , wherein maxnoofCoMPinformation is 4, 8, 16, or 256.
6. The wireless communications method as in claim 1 , wherein the benefit metric comprises null or a special value indicating information other than benefit.
7. The wireless communications method as in claim 6 , wherein the information is an unknown benefit.
8. The wireless communications method as in claim 6 , wherein the information is that resource allocation in a CoMP hypothesis is mandatory.
9. A wireless communications method implemented in a second transmission point supporting coordinated multi-point transmission and reception (CoMP), the wireless communications method comprising:
receiving from a first transmission point one or more CoMP hypothesis sets; and
receiving from the first transmission point a benefit metric corresponding to each CoMP hypothesis set,
wherein the benefit metric can be a negative value and is received according to a table comprising:
IE/Group Name
Presence
Range
CoMP Information Item
1 . . .
<maxnoofCoMPInformation>
>CoMP Hypothesis Set
M
>Benefit Metric
M
Start SFN
Start Subframe Index
where M denotes mandatory, and maxnoofCoMPinformation denotes a Maximum number of CoMP Hypothesis sets.
10. The wireless communications method as in claim 9 , wherein the benefit metric indicates a loss or cost when the benefit metric is the negative value.
11. The wireless communications method as in claim 9 , wherein the benefit metric is calculated on a linear scale.
12. The wireless communications method as in claim 9 , wherein the second transmission point adds up gain, benefit, loss, or cost values that the second transmission point receives for suggested actions, and adds a gain, benefit loss, or cost that the second transmission point obtains upon following the suggested actions.
13. The wireless communications method as in claim 9 , wherein maxnoofCoMPinformation is 4, 8, 16, or 256.
14. The wireless communications method as in claim 9 , wherein the benefit metric comprises null or a special value indicating information other than benefit.
15. The wireless communications method as in claim 14 , wherein the information is that resource allocation in a CoMP hypothesis is mandatory.
16. The wireless communications method as in claim 14 , wherein the information is an unknown benefit.
17. A first transmission point supporting coordinated multi-point transmission and reception (CoMP) and implemented in a wireless communications system, the first transmission point comprising:
a transmitter configured to transmit to a second transmission point one or more CoMP hypothesis sets and a benefit metric corresponding to each CoMP hypothesis set,
wherein the benefit metric can be a negative value and is transmitted according to a table comprising:
IE/Group Name
Presence
Range
CoMP Information Item
1 . . .
<maxnoofCoMPInformation>
>CoMP Hypothesis Set
M
>Benefit Metric
M
Start SFN
Start Subframe Index
where M denotes mandatory, and maxnoofCoMPinformation denotes a Maximum number of CoMP Hypothesis sets.
18. A second transmission point supporting coordinated multi-point transmission and reception (CoMP) and implemented in a wireless communications system, the second transmission point comprising:
a receiver configured to receive from a first transmission point one or more CoMP hypothesis sets and a benefit metric corresponding to each CoMP hypothesis set,
wherein the benefit metric can be a negative value and is received according to a table comprising:
IE/Group Name
Presence
Range
CoMP Information Item
1 . . . <maxnoofCoMPInformation>
>CoMP Hypothesis Set
M
>Benefit Metric
M
Start SFN
Start Subframe Index
where M denotes mandatory, and maxnoofCoMPinformation denotes a Maximum number of CoMP Hypothesis sets.
19. A wireless communications method implemented in a wireless communications system supporting coordinated multi-point transmission and reception (CoMP), the wireless communications method comprising:
transmitting from a first transmission point to a second transmission point one or more CoMP hypothesis sets; and
transmitting from the first transmission point to the second transmission point a benefit metric corresponding to each CoMP hypothesis set,
wherein the benefit metric can be a negative value and is transmitted according to a table comprising:
IE/Group Name
Presence
Range
CoMP Information Item
1 . . .
<maxnoofCoMPInformation>
>CoMP Hypothesis Set
M
>Benefit Metric
M
Start SFN
Start Subframe Index
where M denotes mandatory, and maxnoofCoMPinformation denotes a Maximum number of CoMP Hypothesis sets.
20. A wireless communications system supporting coordinated multi-point transmission and reception (CoMP), the wireless communications system comprising:
a first transmission point; and
a second transmission point configured to receive from form the first transmission point one or more CoMP hypothesis sets,
wherein the first transmission point transmits to the second transmission point a benefit metric corresponding to each CoMP hypothesis set, and
wherein the benefit metric can be a negative value and is received according to a table comprising:
IE/Group Name
Presence
Range
CoMP Information Item
1 . . . <maxnoofCoMPInformation>
>CoMP Hypothesis Set
M
>Benefit Metric
M
Start SFN
Start Subframe Index
where M denotes mandatory, and maxnoofCoMPinformation denotes a Maximum number of CoMP Hypothesis sets.