Physical uplink control channel sending method, receiving method, and communication apparatus
This application discloses a physical uplink control channel sending method, a receiving method, and a communication apparatus. The method includes: A terminal device determines a first transmission manner from a plurality of transmission manners including a first non-frequency hopping transmission manner, and sends a PUCCH to a network device in the first transmission manner. The first non-frequency hopping transmission manner is: sending the PUCCH without frequency hopping in a time unit. UCI on the PUCCH includes a first part and a second part, the first part is sent by using an orthogonal sequence whose length is L1, and the second part is sent by using an orthogonal sequence whose length is L2. The UCI is divided into two parts, and is sent without frequency hopping by using orthogonal sequences with a same length or different lengths.
1 . A communication method, comprising:
determining a first transmission manner from a plurality of transmission manners, and the plurality of transmission manners comprise a non-frequency hopping transmission manner and an intra-slot frequency hopping transmission manner;
if second indication information is present, and the first transmission manner is the non-frequency hopping transmission manner, receiving the second indication information and determining, based on the second indication information, a rule used to determine a resource block (RB) index of a physical uplink control channel (PUCCH) from a second rule and a third rule;
wherein a first X number of PUCCH resources are on one side of a bandwidth part (BWP) according to the second rule;
wherein a second X number of PUCCH resources are on the other side of the BWP according to the third rule, wherein X is an integer; and
sending the PUCCH to a network device in the first transmission manner;
wherein the non-frequency hopping transmission manner comprises the PUCCH being transmitted without frequency hopping in a slot, wherein uplink control information (UCI) on the PUCCH is sent by using an orthogonal sequence whose length is L5 symbols, a demodulation reference signal (DMRS) on the PUCCH is sent by using an orthogonal sequence whose length is L6 symbols, and L5 and L6 are integers; and
wherein the intra-slot frequency hopping transmission manner comprises the PUCCH being transmitted with frequency hopping in a slot.
2 . The method according to claim 1 , wherein:
the second rule is 0≤r PUCCH ≤X−1, and an RB index value of the PUCCH is equal to RB BWP offset +└r PUCCH /N CS ┘; and
the third rule is: 0≤r PUCCH ≤X−1, and an RB index value of the PUCCH is equal to N BWP size −1−RB BWP offset −└r PUCCH /N CS ┘;
wherein the r PUCCH is a PUCCH resource index, N CS is a quantity of cyclic shifts of a PUCCH resource set, RB BWP offset is a frequency domain offset value of the PUCCH resource set, N BWP Size is a size of a bandwidth part BWP on which the PUCCH resource is configured.
3 . The method according to claim 1 , wherein the method further comprises:
receiving a higher layer signaling comprising the second indication information.
4 . The method according to claim 1 , wherein:
the second indication information is indicated by 1 bit; and
when a bit value of the second indication information is 0, the second indication information indicates that the RB index of the PUCCH is determined according to the second rule; or
when a bit value of the second indication information is 1, the third rule is used to determine the RB index of the PUCCH based on the second indication information.
5 . The method according to claim 1 , wherein:
if second indication information is absent, the RB index of the PUCCH is determined according to a default rule;
a first X/2 number of PUCCH resources are on one side of the BWP, and a second X/2 number of PUCCH resources are on the other side of the BWP for the default rule.
6 . The method according to claim 5 , wherein the default rule comprises:
0≤r PUCCH ≤(X/2)−1, and an RB index value of the PUCCH is equal to RB BWP offset +└r PUCCH /N CS ┘; and
X/2≤r PUCCH ≤X−1 and the RB index value of the PUCCH is equal to N BWP size −1−RB BWP offset −└r PUCCH −8)/N CS ┘.
7 . The method according to claim 1 , wherein X=16.
8 . The method according to claim 1 , wherein:
whether the second indication information is present is determined based on an identification information.
9 . The method according to claim 1 , wherein the method further comprises:
receiving a first indication information, wherein the first indication information indicates the first transmission manner.
10 . The method according to claim 1 , wherein:
the first indication information occupies 1 bit; and
when a bit value of the first indication information is 0, the first indication information indicates that the first transmission manner is the non-frequency hopping transmission manner;
when a bit value of the first indication information is 1, the first indication information indicates that the first transmission manner is the intra-slot frequency hopping transmission manner.
11 . The method according to claim 1 , wherein:
the one side of the BWP indicates starting from a lowest frequency location of the BWP;
the other side of the BWP indicates starting from a highest frequency location of the BWP.
12 . An apparatus, comprising:
a memory storing instructions; and
at least one processor in communication with the memory, the at least one processor configured, upon execution of the instructions, to perform the following steps:
determining a first transmission manner from a plurality of transmission manners, and the plurality of transmission manners comprise a non-frequency hopping transmission manner and an intra-slot frequency hopping transmission manner;
if second indication information is present, and the first transmission manner is the non-frequency hopping transmission manner, receiving the second indication information, and determining, based on the second indication information, a rule used to determine a resource block (RB) index of a physical uplink control channel (PUCCH) from a second rule and a third rule;
wherein a first X number of PUCCH resources are on one side of a bandwidth part (BWP) according to the second rule;
wherein a second X number of PUCCH resources are on the other side of the BWP according to the third rule, wherein X is an integer; and
sending the PUCCH to a network device in the first transmission manner;
wherein the non-frequency hopping transmission manner comprises the PUCCH being transmitted without frequency hopping in a slot, wherein uplink control information (UCI) on the PUCCH is sent by using an orthogonal sequence whose length is L5 symbols, a demodulation reference signal (DMRS) on the PUCCH is sent by using an orthogonal sequence whose length is L6 symbols, and L5 and L6 are integers; and
wherein the intra-slot frequency hopping transmission manner comprises the PUCCH being transmitted with frequency hopping in a slot.
13 . The apparatus according to claim 12 , wherein:
the second rule is 0≤r PUCCH ≤X−1, and an RB index value of the PUCCH is equal to RB BWP offset +└r PUCCH /N CS ┘; and
the third rule is: 0≤r PUCCH ≤X−1, and an RB index value of the PUCCH is equal to N BWP size −1−RB BWP offset −└r PUCCH /N CS ┘;
wherein the r PUCCH is a PUCCH resource index, N CS is a quantity of cyclic shifts of a PUCCH resource set, RB BWP offset is a frequency domain offset value of the PUCCH resource set, N BWP Size is a size of a bandwidth part BWP on which the PUCCH resource is configured.
14 . The apparatus according to claim 12 , wherein:
the second indication information is indicated by 1 bit; and
when a bit value of the second indication information is 0, the second indication information indicates the RB index of the PUCCH is determined according to the second rule; or
when a bit value of the second indication information is 1, the third rule is used to determine the RB index of the PUCCH based on the second indication information.
15 . The apparatus according to claim 12 , wherein:
if second indication information is absent, the RB index of the PUCCH is determined according to a default rule;
a first X/2 number of PUCCH resources are on one side of the BWP, and a second X/2 number of PUCCH resources are on the other side of the BWP for the default rule.
16 . The apparatus according to claim 12 , wherein the default rule comprises:
0≤r PUCCH ≤(X/2)−1, and an RB index value of the PUCCH is equal to RB BWP offset +└r PUCCH /N CS ┘; and
X/2≤r PUCCH ≤X−1 and the RB index value of the PUCCH is equal to N BWP size −1−RB BWP offset −└r PUCCH −8)/N CS ┘.
17 . The apparatus according to claim 12 , wherein X=16.
18 . The apparatus according to claim 12 , wherein:
whether the second indication information is present is determined based on an identification information.
19 . The apparatus according to claim 12 , wherein:
the one side of the BWP indicates starting from a lowest frequency location of the BWP;
the other side of the BWP indicates starting from a highest frequency location of the BWP.
20 . A non-transitory computer-readable media storing computer instructions that configure at least one processor, upon execution of the instructions, to perform the following steps:
determining a first transmission manner from a plurality of transmission manners, and the plurality of transmission manners comprise a non-frequency hopping transmission manner and an intra-slot frequency hopping transmission manner;
if second indication information is present, and the first transmission manner is the non-frequency hopping transmission manner, receiving the second indication information, and determining, based on the second indication information, a rule used to determine a resource block (RB) index of a physical uplink control channel (PUCCH) from a second rule and a third rule;
wherein a first X number of PUCCH resources are on one side of a bandwidth part (BWP) according to the second rule;
wherein a second X number of PUCCH resources are on the other side of the BWP according to the third rule, wherein X is an integer; and
sending the PUCCH to a network device in the first transmission manner;
wherein the non-frequency hopping transmission manner comprises the PUCCH being transmitted without frequency hopping in a slot, wherein uplink control information (UCI) on the PUCCH is sent by using an orthogonal sequence whose length is L5 symbols, a demodulation reference signal (DMRS) on the PUCCH is sent by using an orthogonal sequence whose length is L6 symbols, and L5 and L6 are integers; and
wherein the intra-slot frequency hopping transmission manner comprises the PUCCH being transmitted with frequency hopping in a slot.