IP Library › Granted Patent US 10,873,421

Granted Patent B2

US 10,873,421 · App. 16/312,201 · Granted Dec 22, 2020

Method and device for transmitting and receiving feedback information of physical uplink shared channel

Inventors: Xuejuan Gao (Beijing, CN); Xueming Pan (Beijing, CN)

Assignee: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

H04L1/1812 H04L1/1854 H04L5/0055 H04L5/14 H04W72/0446

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Quick Facts

Patent No.: US 10,873,421
App. No.: 16/312,201
Granted: Dec 22, 2020
Kind: B2

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USPTO Patent Center↗ Full Patent PDF↗

Abstract

The invention relates to the field of wireless communication technology, and in particular, to a method and device for transmitting and receiving feedback information, resolving a problem of providing ACK/NACK feedback of a physical uplink shared channel (PUSCH) transmission in an uplink pilot time slot (UpPTS). In one embodiment of the invention, the method comprises: a terminal transmits, in a special subframe n, PUSCH data, and receive, in a subframe (n+k PHICH ), physical hybrid-ARQ indicator channel (PHICH) data corresponding to the PUSCH data, wherein a PHICH is used to carry feedback information of the PUSCH data; and a network apparatus receives, in the special subframe n, the PUSCH data, and transmits, in the subframe (n+k PHICH ), the PHICH data corresponding to the PUSCH data. Therefore, the embodiment implements transmission of ACK/NACK of PUSCH data in an UpPTS.

Claims (146)

1. A method for receiving feedback information of Physical Uplink Shared Channel, the method comprising:

transmitting, by a User Equipment (UE), a Physical Uplink Shared Channel (PUSCH) in a special subframe n, wherein n is a subframe index of the special subframe; and

receiving, by the UE, a Physical Hybrid Automatic Repeat Request (HARQ) Indicating Channel (PHICH) corresponding to the PUSCH in a subframe n+k PHICH , wherein the PHICH carries feedback information of the PUSCH, and k PHICH is a prescribed or preconfigured value to determine subframe n+k PHICH ;

wherein:

for a Time Division Duplex (TDD) uplink-downlink configuration 0, when n is 1 or 6, then k PHICH is one of 4, 5, 9, and 10; or

for a TDD uplink-downlink configuration 1, when n is 1 or 6, then k PHICH is one of 3, 5, 8, 9, and 10; or

for a TDD uplink-downlink configuration 2, when n is 1 or 6, then k PHICH is one of 2, 3, 4, 5, 7, 8, 9, and 10; or

for a TDD uplink-downlink configuration 3, when n is 1, then k PHICH is one of 4, 5, 7, 8, 9, and 10; or

for a TDD uplink-downlink configuration 4, when n is 1, then k PHICH is one of 3, 4, 5, 7, 8, 9, and 10; or

for a TDD uplink-downlink configuration 5, when n is 1, then k PHICH is one of 2, 3, 4, 5, 7, 8, 9, and 10; or

for a TDD uplink-downlink configuration 6, when n is 1, then k PHICH is one of 4, 5, 8, 9, and 10; or

for a TDD uplink-downlink configuration 6, when n is 6, then k PHICH is one of 3, 4, 5, 9, and 10;

wherein the TDD uplink-downlink configuration is an uplink reference TDD uplink-downlink configuration, or a TDD uplink-downlink configuration configured in system information;

for the TDD uplink-downlink configuration 0, a number of PHICH groups in the subframe n+k PHICH determined by at least one of scheme 2 and scheme 4 below; for the TDD uplink-downlink configuration 1, a number of PHICH groups in the subframe n+k PHICH determined by at least one of scheme 2 and scheme 3 below; for the TDD uplink-downlink configuration 2-5, a number of PHICH groups in the subframe n+k PHICH determined by at least one of scheme 1 to scheme 3 below; for the TDD uplink-downlink configuration 6, a number of PHICH groups in the subframe n+kPHICH determined by at least one of scheme 2 or scheme 3 below;

wherein scheme 1:

for the TDD uplink-downlink configuration 1, when the subframe n+k PHICH is the subframe 0 and the subframe k PHICH is the subframe 9, or when the subframe n+k PHICH is the subframe 5 and the subframe k PHICH is the subframe 9, or for the TDD uplink-downlink configuration 2, when the subframe n+k PHICH is the subframe 0, 4, 5, or 9, or the subframe n+k PHICH is the subframe 1 and the subframe k PHICH is the subframe 10, or the subframe n+k PHICH is the subframe 6 and the subframe k PHICH is the subframe 10, or for the TDD uplink-downlink configuration 3, when the subframe n+k PHICH is the subframe 1, 5, or 6, or for the TDD uplink-downlink configuration 4, when the subframe n+k PHICH is the subframe 0, 1, 4, 5, or 6, or for the TDD uplink-downlink configuration 5, when the subframe n+k PHICH is the subframe 0, 1, 3, 4, 5, 6, or 9, then the subframe n+k PHICH comprises m i *N PHICH group groups of PHICHs, wherein m i is 1;

wherein i is a subframe index of the subframe n+k PHICH , and N PHICH group is a number of PHICH groups determined according to a parameter configured in high-layer signaling;

scheme 2:

for the TDD uplink-downlink configuration 0, when k PHICH is 4, 5, 9, or 10, or for the TDD uplink-downlink configuration 1, when k PHICH is 3, 5, 8, or 10, or for the TDD uplink-downlink configuration 2, when k PHICH is 2 or 7, or for the TDD uplink-downlink configuration 3, when k PHICH is 7, 8, or 9, or for the TDD uplink-downlink configuration 4, when k PHICH is 7 or 8, or for the TDD uplink-downlink configuration 5, when k PHICH is 7, or for the TDD uplink-downlink configuration 6, when k PHICH is 3, 4, 5, 8, 9, or 10, then the subframe n+k PHICH comprises m i *N PHICH group groups of PHICHs, wherein m i is a value defined in 3GPP TS 36.211;

wherein i is a subframe index of the subframe n+k PHICH , m i is a coefficient for determining the number of PHICH groups corresponding to a subframe i in a TDD system, and N PHICH group is a number of PHICH groups determined according to a parameter configured in high-layer signaling;

scheme 3:

for the TDD uplink-downlink configuration 1, when the subframe n+k PHICH is the subframe 1, 4, 6, or 9, or for the TDD uplink-downlink configuration 2, when the subframe n+k PHICH is the subframe 3 or 8, or for the TDD uplink-downlink configuration 3, when the subframe n+k PHICH is the subframe 0, 8, or 9, or for the TDD uplink-downlink configuration 4, when the subframe n+k PHICH is the subframe 8 or 9, or for the TDD uplink-downlink configuration 5, when the subframe n+k PHICH is the subframe 8, or for the TDD uplink-downlink configuration 6, when the subframe n+k PHICH is the subframe 0, 5, or 9, then the subframe n+k PHICH comprises m i *N PHICH group groups of PHICHs, wherein m i is 2;

wherein i is a subframe index of the subframe n+k PHICH , and N PHICH group is a number of PHICH groups determined according to a parameter configured in high-layer signaling;

scheme 4:

for the TDD uplink-downlink configuration 0, when the subframe n+k PHICH is the subframe 0 or 5, then the subframe n+k PHICH comprises m i *N PHICH group groups of PHICHs, wherein m i is 3;

wherein i is a subframe index of the subframe n+k PHICH , and N PHICH group is the number of PHICH groups determined according to a parameter configured in high-layer signaling.

2. The method according to claim 1 , wherein when mi is 1, receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH comprises:

determining, by the UE, IPHICH corresponding to the PUSCH transmitted in the special subframe n to be I PHICH =0, and determining a PHICH resource, corresponding to the PUSCH, in the subframe n+k PHICH according to a value of I PHICH ; and

receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH according to the determined PHICH resource;

wherein IPHICH is a parameter for determining the PHICH resource;

when mi is a value defined in the 3GPP TS 36.211, receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH comprises:

determining, by the UE, a PHICH resource, corresponding to the PUSCH transmitted in the special subframe n, in the subframe n+k PHICH according to a lowest Physical Resource Block (PRB) index of the PUSCH transmitted in the special subframe n, Demodulation Reference Signal (DMRS) cyclic shift information indicated in scheduling information of the PUSCH, and a prescribed or preconfigured value of IPHICH corresponding to the PUSCH transmitted in the special subframe n; and

receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH according to the determined PHICH resource;

wherein the lowest PRB index of the PUSCH transmitted in the special subframe n is different from a lowest PRB index of a PUSCH transmitted in a corresponding uplink subframe for which the PHICH is received according to the value of I PHICH in the subframe n+k PHICH , and/or the Demodulation Reference Signal (DMRS) cyclic shift information indicated in the scheduling information of the PUSCH transmitted in the special subframe n is different from DMRS cyclic shift information indicated in scheduling information of a PUSCH transmitted in a corresponding uplink subframe for which the PHICH is received according to the value of I PHICH in the subframe n+k PHICH .

3. The method according to claim 1 , wherein when mi is 2, receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH comprises:

determining, by the UE, I PHICH corresponding to the PUSCH transmitted in the special subframe n to be I PHICH =1, and determining a PHICH resource, corresponding to the PUSCH, in the subframe n+k PHICH according to a value of I PHICH ; and

receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH according to the determined PHICH resource;

wherein I PHICH is a parameter for determining the PHICH resource;

when mi is 3, receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH comprises:

determining, by the UE, I PHICH corresponding to the PUSCH transmitted in the special subframe n to be I PHICH =2, and determining a PHICH resource, corresponding to the PUSCH, in the subframe n+k PHICH according to a value of I PHICH ; and

receiving, by the UE, the PHICH corresponding to the PUSCH in the subframe n+k PHICH according to the determined PHICH resource;

wherein I PHICH is a parameter for determining the PHICH resource.

4. A method for transmitting feedback information of Physical Uplink Shared Channel, the method comprising:

receiving, by a network-side device, a Physical Uplink Shared Channel (PUSCH) in a special subframe n, wherein n is a subframe index of the special subframe; and

transmitting, by the network-side device, a Physical Hybrid Automatic Repeat Request (HARQ) Indicating Channel (PHICH) corresponding to the PUSCH in a subframe n+k PHICH , wherein the PHICH carries feedback information of the PUSCH, and k PHICH is a prescribed or preconfigured value to determine subframe n+k PHICH ;

wherein:

for a TDD uplink-downlink configuration 0, when n is 1 or 6, then k PHICH is one of 4, 5, 9, and 10; or