User equipments, base stations and methods for multi-cellular operation
A wireless terminal comprises receiver circuitry and processor circuitry. The receiver circuitry is configured to receive, over the radio interface, information upon which determination of allocation type determination formula(e) is dependent. The processor circuitry configured to: (1) use the received information to determine which allocation type determination formula(e) is to be used to determine an allocation type; (2) use the allocation type determination formula(e) to determine the allocation type, a type of the allocation type being determined depending on location of an allocated resource block for the uplink channel relative to channel bandwidth; and (3) use the allocation type to determine a parameter for a configured maximum transmission power for an uplink channel upon which an uplink transmission is transmitted.
1 . A wireless terminal of a cellular telecommunication system, the wireless terminal communicating over a radio interface with an access node of a radio access network, the wireless terminal comprising:
receiver circuitry configured to receive, over the radio interface, information upon which a determination of one or more allocation type determination formulas is dependent;
processor circuitry configured to:
use the received information to determine the one or more allocation type determination formulas that are to be used to determine an allocation type,
use the one or more allocation type determination formulas to determine the allocation type, a type of the allocation type being determined depending on a location of an allocated resource block for an uplink channel relative to a channel bandwidth, and
use the allocation type to determine a parameter for a configured maximum transmission power for the uplink channel over which uplink data is transmitted,
wherein the received information is used to determine either one of a first allocation type determination formula and a second allocation type determination formula, or both the first allocation type determination formula and the second allocation type determination formula, and
wherein the allocation type is determined according to:
a first alternative, in which the allocation type is determined to be a specific allocation type regardless of whether the allocated resource blocks is at a lowermost edge or an uppermost edge of the channel bandwidth, and regardless of a number of resource blocks (L CRB ) allocated for the uplink data, and regardless of a number N RB of resource blocks for a maximum transmission bandwidth configuration for a given channel bandwidth,
a second alternative, in which the allocation type is determined to be:
an edge resource block (RB) allocation in a case that the allocated resource blocks is at the lowermost edge or the uppermost edge of the channel bandwidth, and L CRB is equal to or smaller than a predefined integer M, and
the specific allocation type regardless of L CRB and N RB for all other cases, and
a third alternative, in which, when a channel is an intermediate channel in a frequency range between two other channels and N RB is the number of resource blocks in the intermediate channel, the allocation type is determined to be:
the edge RB allocation in a case that the allocated resource blocks is at the lowermost edge or the uppermost edge of the channel bandwidth, and L CRB is equal to or smaller than the predefined integer M, and
an inner RB allocation in a case that RB Start,Low ≤RB Start ≤RB Start,High , and L CRB ≤ceil(N RB /M), wherein;
B
Start
,
Low
=
max
(
1
,
floor
(
L
CRB
/
M
)
)
,
RB
Start
,
High
=
N
RB
-
RB
Start
,
Low
-
L
CRB
,
ceil(N RB /M) represents a ceiling function for a real number N RB /M, and
floor (L CRB /M) represents a floor function for a real number L CRB /M.
2 . The wireless terminal of claim 1 , further comprising transmitter circuitry configured to transmit the uplink data over the radio interface using the configured maximum transmission power determined by the parameter.
3 . The wireless terminal of claim 1 , wherein the received information comprises an identification of a plurality of bandwidth regions for a cell, and
wherein determining the one or more allocation type determination formulas that are to be used to determine the allocation type is depending on to which of the plurality of bandwidth regions the uplink data is confined.
4 . The wireless terminal of claim 3 , wherein the processor circuitry is further configured to:
use a first formula in a case that the uplink data is confined within a bandwidth region which is located at an edge of the cell among the plurality of bandwidth regions, and
use a second formula in a case that the uplink data is confined within a bandwidth region which is not located at the edge of the cell among the plurality of bandwidth regions.
5 . The wireless terminal of claim 3 , wherein the processor circuitry is configured to:
use both a first formula and a second formula in a case that the uplink data is confined within a bandwidth region which is located at an edge of the cell among the plurality of bandwidth regions, and
use the first formula in a case that the uplink data is confined within a bandwidth region which is not located at the edge of the cell among the plurality of bandwidth regions.
6 . A wireless terminal of a cellular telecommunication system, the wireless terminal communicating over a radio interface with an access node of a radio access network, the wireless terminal comprising:
receiver circuitry configured to receive, over the radio interface, information upon which a determination of one or more allocation type determination formulas is dependent;
processor circuitry configured to:
use the received information to determine the one or more allocation type determination formulas that are to be used to determine an allocation type,
use the one or more allocation type determination formulas to determine the allocation type, a type of the allocation type being determined depending on a location of an allocated resource block for an uplink channel relative to a channel bandwidth, and
use the allocation type to determine a parameter for a configured maximum transmission power for the uplink channel over which uplink data is transmitted,
wherein the received information is used to determine both a first allocation type determination formula and a second allocation type determination formula,
wherein the processor circuitry is further configured to:
determine a first maximum power reduction parameter using a first allocation type determined using the first allocation type determination formula,
determine a second maximum power reduction parameter using a second allocation type determined using the second allocation type determination formula, and
make a selection of the first maximum power reduction parameter and the second maximum power reduction parameter, and
wherein the allocation type is determined according to:
a first alternative, in which the allocation type is determined to be a specific allocation type regardless of whether the allocated resource blocks is at a lowermost edge or an uppermost edge of the channel bandwidth, and regardless of a number of resource blocks (L CRB ) allocated for the uplink data, and regardless of a number N RB of resource blocks for a maximum transmission bandwidth configuration for a given channel bandwidth,
a second alternative, in which the allocation type is determined to be:
an edge resource block (RB) allocation in a case that the allocated resource blocks is at the lowermost edge or the uppermost edge of the channel bandwidth, and L CRB is equal to or smaller than a predefined integer M, and
the specific allocation type regardless of L CRB and N RB for all other cases, and
a third alternative, in which, when a channel is an intermediate channel in a frequency range between two other channels and N RB is the number of resource blocks in the intermediate channel, the allocation type is determined to be:
the edge RB allocation in a case that the allocated resource blocks is at the lowermost edge or the uppermost edge of the channel bandwidth, and L CRB is equal to or smaller than the predefined integer M, and
an inner RB allocation in a case that RB Start,Low ≤RB Start ≤RB Start,High , and L CRB ≤ceil(N RB /M), wherein;
B
Start
,
Low
=
max
(
1
,
floor
(
L
CRB
/
M
)
)
,
RB
Start
,
High
=
N
RB
-
RB
Start
,
Low
-
L
CRB
,
ceil(N RB /M) represents a ceiling function for a real number N RB /M, and
floor(L CRB /M) represents a floor function for a real number L CRB /M.
7 . A method performed by a wireless terminal of a cellular telecommunication system, the wireless terminal communicating over a radio interface with an access node of a radio access network, the method comprising:
receiving, over the radio interface, information upon which a determination of one ore more allocation type determination formulas is dependent;
using the received information to determine the one or more allocation type determination formulas that are to be used to determine an allocation type;
using the one or more allocation type determination formulas to determine the allocation type, a type of the allocation type being determined depending on a location of an allocated resource block for an uplink channel relative to a channel bandwidth;
using the allocation type to determine a parameter for a configured maximum transmission power for the uplink channel upon which uplink data is transmitted by at least:
determining a first maximum power reduction parameter using a first allocation type determined using a first allocation type determination formula;
determining a second maximum power reduction parameter using a second allocation type determined using a second allocation type determination formula; and
making a selection of the first maximum power reduction parameter and the second maximum power reduction parameter;
transmitting the uplink data over the radio interface using the configured maximum transmission power determined by the parameter; and
determining the allocation type according to:
a first alternative, in which the allocation type is determined to be a specific allocation type regardless of whether the allocated resource blocks is at a lowermost edge or an uppermost edge of the channel bandwidth, and regardless of a number of resource blocks (L CRB ) allocated for the uplink data, and regardless of a number N RB of resource blocks for a maximum transmission bandwidth configuration for a given channel bandwidth,
a second alternative, in which the allocation type is determined to be:
an edge resource block (RB) allocation in a case that the allocated resource blocks is at the lowermost edge or the uppermost edge of the channel bandwidth, and L CRB is equal to or smaller than a predefined integer M, and
the specific allocation type regardless of L CRB and N RB for all other cases, and
a third alternative, in which, when a channel is an intermediate channel in a frequency range between two other channels and N RB is the number of resource blocks in the intermediate channel, the allocation type is determined to be:
the edge RB allocation in a case that the allocated resource blocks is at the lowermost edge or the uppermost edge of the channel bandwidth, and L CRB is equal to or smaller than the predefined integer M, and
an inner RB allocation in a case that RB Start,Low ≤RB Start ≤RB Start,High , and L CRB ≤ceil(N RB /M), wherein;
B
Start
,
Low
=
max
(
1
,
floor
(
L
CRB
/
M
)
)
,
RB
Start
,
High
=
N
RB
-
RB
Start
,
Low
-
L
CRB
,
ceil(N RB /M) represents a ceiling function for a real number N RB /M, and
floor(L CRB /M) represents a floor function for a real number L CRB /M.