# US 2013/0156003 A1 · Method and System for Determining Physical Uplink Control Channel Resources

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- Number: US 2013/0156003 A1
- Document ID: US20130156003A1
- Status: Published application
- Kind: A1
- Application number: 13/814,566
- Filed: 2011-01-20
- Published: 2013-06-20
- Earliest claimed: 2010-08-12
- Assignees: Zte Corporation
- Inventors: Chunli Liang; Bo Dai; Peng Hao; Weiwei Yang; Peng Zhu
- Web page: https://patentgrep.com/patent/US20130156003A1

## CPC

- H04W 72/21: in the uplink direction of a wireless link, i.e. towards the network
- H04L 1/0026: {Transmission of channel quality indication}
- H04L 1/1671: {the supervisory signal being transmitted together with control information}
- H04L 5/0037: {Inter-user or inter-terminal allocation}
- H04L 5/0053: {Allocation of signalling, i.e. of overhead other than pilot signals}
- H04L 27/32: Carrier systems characterised by combinations of two or more of the types covered by groups H04L27/02, H04L27/10, H04L27/18 or H04L27/26
- H04W 52/146: {Uplink power control}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A method and system for determining physical uplink control channel resources are disclosed in the present document, a terminal determines a frequency domain resource, namely a location of a physical uplink control channel format 3 in total physical uplink control channel areas, used when the physical uplink control channel format 3 is sent according to parameters configured by a base station, and the location is determined according to a set location relationship. One location relationship is: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas including in turn a physical uplink control channel format 3 area, a physical uplink control channel format 2/2a/2b area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area. In the present document, a feasible scheme is provided for determining resources of the physical uplink control channel format 3, which improves the system performance.

## Claims

### Claim 1

A method for determining physical uplink control channel resources, comprising:
a terminal determining a frequency domain resource and a code domain resource used when a physical uplink control channel format 3 is sent according to parameters configured by a base station.

### Claim 2 (depends on 1)

The method according to claim 1, wherein,
the frequency domain resource used by the physical uplink control channel format 3 is a location of the physical uplink control channel format 3 in total physical uplink control channel areas; and the location is determined according to one of following 5 location relationships:
location relationship 1: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 3 area, a physical uplink control channel format 2/2a/2b area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
location relationship 2: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a physical uplink control channel format 3 area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
location relationship 3: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a hybrid resource block, a physical uplink control channel format 3 area and a physical uplink control channel format 1/1a/1b area;
location relationship 4: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a hybrid resource block, a physical uplink control channel format 1/1a/1b area and a physical uplink control channel format 3 area;
location relationship 5: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn an area in which the physical uplink control channel format 3 and a physical uplink control channel format 2/2a/2b appear alternately, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
wherein, in a case that no hybrid resource block resource is configured, the hybrid resource block is not contained in the above location relationships.

### Claim 3 (depends on 1)

The method according to claim 1, wherein,
the step of a terminal determining a frequency domain resource and a code domain resource used when a physical uplink control channel format 3 is sent according to parameters configured by a base station comprises:
the terminal obtaining a control channel index nPUCCH(3) used when the physical uplink control channel format 3 is sent;
according to the control channel index nPUCCH(3), the location of the physical uplink control channel format 3 in total physical uplink control channel areas and a number of channels NCH of the physical uplink control channel format 3 which can be multiplexed within one resource block, the terminal determining a virtual frequency domain resource block index m of the physical uplink control channel format 3;
according to a mapping relationship between the virtual frequency domain resource block index m and a physical frequency domain resource block index, the terminal obtaining a physical frequency domain resource block index nPRB(3) practically used when the physical uplink control channel format 3 is sent;
according to the control channel index nPUCCH(3) and the number of channels NCH of the physical uplink control channel format 3 which can be multiplexed within one resource block, the terminal determining a relative channel index n′(ns)(ns mod 2=0) of the channel index nPUCCH(3) within one resource block on a first timeslot within a subframe; and
according to the n′(ns), the terminal determining the code domain resource of the physical uplink control channel format 3, namely a sequence index nOC(3)(ns) corresponding to a time domain spread sequence and a sequence index nRS,CS(3)((ns) corresponding to a reference signal sequence used when the physical uplink control channel format 3 is sent.

### Claim 4 (depends on 3)

The method according to claim 3, wherein,
a value of the number of channels NCH of the physical uplink control channel format 3 which can be multiplexed within one resource block is related to a number of channels NCHOC which can be multiplexed through the time domain spread sequence and a number of channels NCHRS which can be multiplexed through the reference signal sequence.

### Claim 5 (depends on 4)

The method according to claim 4, wherein,
the value of the NCH is a minimum of the NCHOC and the NCHRS.

### Claim 6 (depends on 4)

The method according to claim 4, wherein,
the number of channels NCHRS which can be multiplexed through the reference signal sequence is related to a cyclic shift interval ΔshiftPUCCH used by the reference signal sequence configured by the base station currently;
or, when the reference signal sequence uses a time domain spreading, the number of channels NCHRS which can be multiplexed through the reference signal sequence is related to a cyclic shift interval ΔshiftPUCCH used by the reference signal sequence configured by the base station currently and a time domain spread sequence length of the reference signal.

### Claim 7 (depends on 6)

The method according to claim 6, wherein,
when the number of channels NCHRS which can be multiplexed through the reference signal sequence is related to the cyclic shift interval ΔshiftPUCCH used by the reference signal sequence configured by the base station currently, NCHRS=└12/ΔshiftPUCCH┘;
when the reference signal sequence uses the time domain spreading, and the number of channels NCHRS which can be multiplexed through the reference signal sequence is related to the cyclic shift interval ΔshiftPUCCH used by the reference signal sequence configured by the base station currently and the time domain spread sequence length of the reference signal, NCHRS=└12/ΔshiftPUCCH┘*nRS,OC(3); wherein nRS,OC(3) is the time domain spread sequence length of the reference signal,
or,
the time domain spread sequence length of the reference signal is related to a reference signal structure used by the physical uplink control channel format 3.

### Claim 8

(canceled)

### Claim 9 (depends on 7)

The method according to claim 7, wherein,
the time domain spread sequence length of the reference signal is equal to a time domain spread sequence length of a reference signal used by the physical uplink control channel format 3.

### Claim 10 (depends on 3)

The method according to claim 3, wherein,
when the physical uplink control channel format 3 uses code resource hopping based on timeslots, a relative channel index n′(ns)(ns mod 2=1) on a second timeslot of the subframe has a mapping relationship with a relative channel index n′(ns)(ns mod 2=0) on the first timeslot; and when the physical uplink control channel format 3 does not use the code resource hopping based on timeslots, the relative channel index n′(ns)(ns mod 2=1) on the second timeslot of the subframe is equal to the relative channel index n′(ns)(ns mod 2=0) on the first timeslot,
or,
when the reference signal sequence uses cyclic shift hopping based on symbols, a sequence index used by the reference signal sequence on each time domain symbol has a mapping relationship with nRS,SC(3)(ns) and with a cyclic shift hopping pattern based on symbols ncs(ns,l) wherein l is an index of the reference signal corresponding to the time domain symbol within one timeslot; and when the reference signal sequence does not use the cyclic shift hopping based on symbols, the sequence index used by the reference signal sequence on each time domain symbol is the nRS,CS(3)(ns),
or,
the control channel index nPUCCH(3) used when the terminal sends the physical uplink control channel format 3 is obtained by means of higher layer signaling configuration, or is obtained by means of implicit indication, or is obtained by means of explicit indication of downlink control information.

### Claim 11

(canceled)

### Claim 12

(canceled)

### Claim 13

(canceled)

### Claim 14

(canceled)

### Claim 15

A method for determining physical uplink control channel resources, comprising:
a terminal determining a frequency domain resource, namely a location of a physical uplink control channel format 3 in total physical uplink control channel areas, used when the physical uplink control channel format 3 is sent according to parameters configured by a base station, wherein the location is determined according to one of following 3 location relationships:
location relationship 1: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 3 area, a physical uplink control channel format 2/2a/2b area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
location relationship 2: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a physical uplink control channel format 3 area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
location relationship 3: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a hybrid resource block, a physical uplink control channel format 3 area and a physical uplink control channel format 1/1a/1b areas
location relationship 4: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a hybrid resource block, a physical uplink control channel format 1/1a/1b area and a physical uplink control channel format 3 area
location relationship 5: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn an area in which the physical uplink control channel format 3 and a physical uplink control channel format 2/2a/2b appear alternately, a hybrid resource block and a physical uplink control channel format 1/1a/1b area.

### Claim 16 (depends on 15)

The method according to claim 15, further comprising:
the terminal determining a virtual frequency domain resource block index m of the physical uplink control channel format 3; wherein,
when the base station configures NRB(3), m=NRB(2)−NRB(3)+└nPUCCH(3)/NCH┘;
when the base station configures NPUCCH(3); m=NPUCCH(3)+└nPUCCH(3)/NCH┘
when the base station does not configure the NRB(3) and NPUCCH(3), m=NRB(2)−1−└nPUCCH(3)/NCH┘ or m=└PUCCH(3)/NCH┘ or
m
=
N
R


B
(
2
)
+
⌈
N
C


S
(
1
)
8
⌉
+
⌊
n
PUCCH
(
3
)
/
N
CH
⌋
;
wherein, NRB(2) represents a total number of physical resource blocks occupied by a physical uplink control channel format 2/2a/2b and the physical uplink control channel format 3, or NRB(2) represents a number of physical resource blocks occupied by the physical uplink control channel format 2/2a/2b;
NRB(3) represents a number of physical resource blocks occupied by the physical uplink control channel format 3; nPUCCH(3) represents a channel index, used when the physical uplink control channel format 3 is sent, obtained by the terminal;
NCH represents a number of channels of the physical uplink control channel format 3 which can be multiplexed within one resource block; NPUCCH(3) represents a start physical resource block index of the physical uplink control channel format 3 area in a frequency domain; and
NCS(1) represents a number of cyclic shifts used for sending a physical uplink control channel format 1/1a/1b in the hybrid resource block.

### Claim 17 (depends on 16)

The method according to claim 16, further comprising:
according to a mapping relationship between the virtual frequency domain resource block index m and a physical frequency domain resource block index, the terminal obtaining a physical frequency domain resource block index nPRB(3) practically used when the physical uplink control channel format 3 is sent, when a value of m+ns mod 2 is an integral multiple of 2,
n
P


R


B
(
3
)
=
⌊
m
2
⌋
,
and when the value of m+ns mod 2 is not an integral multiple of 2,
n
P


R


B
(
3
)
=
N
R


B
U


L
-
1
-
⌊
m
2
⌋
,
wherein, mod represents modular arithmetic, and NRBUL represents a number of physical resource blocks contained in uplink bandwidth.

### Claim 18 (depends on 15)

The method according to claim 15, further comprising:
the terminal determining a code domain resource used when the physical uplink control channel format 3 is sent;
the step of the terminal determining a code domain resource used when the physical uplink control channel format 3 is sent comprising: according to the number of channels NCH of the physical uplink control channel format 3 which can be multiplexed within one resource block, the terminal determining a relative channel index n′(ns)(ns mod 2=0) of the channel index nPUCCH(3) within one resource block on a first timeslot within a subframe, which is specifically as follows: n′(ns)=mod(nPUCCH(3),NCH), and NCH represents the number of channels of the physical uplink control channel format 3 which can be multiplexed within one resource block.

### Claim 19 (depends on 18)

The method according to claim 18, wherein:
the step of the terminal determining a code domain resource used when the physical uplink control channel format 3 is sent further comprises: according to the n′(ns), the terminal determining the code domain resource of the physical uplink control channel format 3, namely a sequence index nOC(3)(ns) corresponding to a time domain spread sequence and a sequence index nRS,CS(3)(ns) corresponding to a reference signal sequence used when the physical uplink control channel format 3 is sent, wherein a value of the ic(ns) is equal to the value of the n′(ns), a value of the nRS,CS(3) (ns) is a product of the n′(ns) and ΔshiftPUCCH, the ΔshiftPUCCH represents a cyclic shift interval of a constant amplitude zero auto-correlation sequence, and values of the ΔshiftPUCCH are 1, 2 and 3.

### Claim 20

A system for determining physical uplink control channel resources, comprising:
a terminal, configured to determine a frequency domain resource, namely a location of a physical uplink control channel format 3 in total physical uplink control channel areas, used when the physical uplink control channel format 3 is sent according to parameters configured by a base station, wherein the location is determined according to one of following 3 location relationships:
location relationship 1: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 3 area, a physical uplink control channel format 2/2a/2b area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
location relationship 2: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a physical uplink control channel format 3 area, a hybrid resource block and a physical uplink control channel format 1/1a/1b area;
location relationship 3: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a hybrid resource block, a physical uplink control channel format 3 area and a physical uplink control channel format 1/1a/1b areas
location relationship 4: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn a physical uplink control channel format 2/2a/2b area, a hybrid resource block, a physical uplink control channel format 1/1a/1b area and a physical uplink control channel format 3 area
location relationship 5: from a bandwidth edge to a bandwidth center, the total physical uplink control channel areas comprising in turn an area in which the physical uplink control channel format 3 and a physical uplink control channel format 2/2a/2b appear alternately, a hybrid resource block and a physical uplink control channel format 1/1a/1b are.

### Claim 21 (depends on 20)

The system according to claim 20, wherein:
the terminal is further configured to determine a virtual frequency domain resource block index m of the physical uplink control channel format 3; wherein,
when the base station configures NRB(3), m=NRB(2)−NRB(3)+└nPUCCH(3)/NCH┘;
when the base station configures NPUCCH(3); m=NPUCCH(3)+└nPUCCH(3)/NCH┘;
when the base station does not configure the NRB(3) and NPUCCH(3), m=NRB(2)−1−└nPUCCH(3)/NCH┘ or m=└PUCCH(3)/NCH┘ or
m
=
N
R


B
(
2
)
+
⌈
N
C


S
(
1
)
8
⌉
+
⌊
n
PUCCH
(
3
)
/
N
CH
⌋
;
wherein, NRB(2) represents a total number of physical resource blocks occupied by a physical uplink control channel format 2/2a/2b and the physical uplink control channel format 3, or NRB(2) represents a number of physical resource blocks occupied by the physical uplink control channel format 2/2a/2b;
NRB(3) represents a number of physical resource blocks occupied by the physical uplink control channel format 3; nPUCCH(3) represents a channel index, used when the physical uplink control channel format 3 is sent, obtained by the terminal;
NCH represents a number of channels of the physical uplink control channel format 3 which can be multiplexed within one resource block; NPUCCH(3) represents a start physical resource block index of the physical uplink control channel format 3 area in a frequency domain; and
NCS(1) represents a number of cyclic shifts used for sending a physical uplink control channel format 1/1a/1b in the hybrid resource block.

### Claim 22 (depends on 21)

The system according to claim 21, wherein:
the terminal is further configured to: according to a mapping relationship between the virtual frequency domain resource block index m and a physical frequency domain resource block index, obtain a physical frequency domain resource block index nPRB(3) practically used when the physical uplink control channel format 3 is sent, when a value of m+ns mod 2 is an integral multiple of 2,
n
P


R


B
(
3
)
=
⌊
m
2
⌋
,
and when the value of m+ns mod 2 is not an integral multiple of 2,
n
P


R


B
(
3
)
=
N
R


B
U


L
-
1
-
⌊
m
2
⌋
,
wherein, mod represents modular arithmetic, and NRBUL represents a number of physical resource blocks contained in uplink bandwidth.

### Claim 23 (depends on 20)

The system according to claim 20, wherein:
the terminal is further configured to: according to the number of channels NCH of the physical uplink control channel format 3 which can be multiplexed within one resource block, determine a relative channel index n′(ns)(ns mod 2=0) of the channel index nPUCCH(3) within one resource block on a first timeslot within a subframe, which is specifically as follows: n′(ns)=mod(nPUCCH(3), NCH), and NCH represents the number of channels of the physical uplink control channel format 3 which can be multiplexed within one resource block.

### Claim 24 (depends on 23)

The system according to claim 23, wherein:
the terminal is further configured to: according to the n′(ns), determine the code domain resource of the physical uplink control channel format 3, namely a sequence index nOC(3)(ns) corresponding to a time domain spread sequence and a sequence index nRS,CS(3)(ns) corresponding to a reference signal sequence used when the physical uplink control channel format 3 is sent, a value of the nOC(3)(ns) is equal to the value of the n′(ns), a value of the nRS,CS(3)(ns) is a product of the n′(ns) and ΔshiftPUCCH, the ΔshiftPUCCH represents a cyclic shift interval of a constant amplitude zero auto-correlation sequence, and values of the ΔshiftPUCCH are 1, 2 and 3.