Communication method, network device, and terminal device

Patent metadata

Field	Value
Publication number	US-10461822-B2
Application number	US-201816135267-A
Country	US
Kind code	B2
Filing date	Sep 19, 2018
Priority date	Jan 12, 2018
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A communication method includes determining, by a network device according a value of a resource bundling granularity, at least one precoding resource block group in a scheduling resource corresponding to the terminal device, where a type of the value of the resource bundling granularity is one of a first-type value and a second-type value, and a precoding resource block group determining method corresponding to the first-type value and the second-type value are different. The method further includes transmitting, by the network device, data to the terminal device by using the at least one precoding resource block group. Based on different values of the resource bundling granularity, different methods are used to determine the at least one precoding resource block group in the scheduling resource.

First claim

What is claimed is:

1. A terminal device, comprising:
a transceiver;
a processor connected to the transceiver; and
a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions to:
determine, according to a value of a resource bundling granularity, at least one resource block bundling group in a scheduling resource corresponding to the terminal device, wherein the value of the resource bundling granularity is one of a first-type value and a second-type value, and a resource block bundling group determining method corresponding to the first-type value is different from a resource block bundling group determining method corresponding to the second-type value; and
cause the transceiver to receive, by using the at least one resource block bundling group, data transmitted by a network device.

2. The terminal device according to claim 1 , wherein the value of the resource bundling granularity is the first-type value, and
wherein the instructions to determine the at least one resource block bundling group include instructions to determine the at least one resource block bundling group in the scheduling resource according to the value of the resource bundling granularity and a location of the scheduling resource in a maximum available bandwidth of a system.

3. The terminal device according to claim 2 , wherein the instructions to determine the at least one resource block bundling group include instructions to:
determine a first resource block bundling group in the scheduling resource according to the following formula:
PRBbundling first =P−N mod P

wherein PRBbundling first is a number indicating that the first resource block bundling group comprises first PRBbundling first resource blocks in the scheduling resource, wherein P indicates the value of the resource bundling granularity, wherein N indicates an index that is of a first physical resource block (PRB) in the scheduling resource and that is in the maximum available bandwidth of the system, and wherein N mod P indicates a remainder after N is divided by P;
determine a last resource block bundling group in the scheduling resource according to the following formula:
PRBbundling last =( N+L )mod P

wherein PRBbundling last a number indicating that the last resource block bundling group comprises last PRBbundling last resource blocks in the scheduling resource, wherein L indicates a quantity of PRBs in the scheduling resource, and wherein (N+L) mod P indicates a remainder after N+L is divided by P; and
determine that each other resource block bundling group in the scheduling resource comprises consecutive resource blocks, wherein a quantity of the consecutive resource blocks is the value of the resource bundling granularity in the scheduling resource.

4. The terminal device according to claim 1 , wherein the value of the resource bundling granularity is the second-type value, and
wherein the program further includes instructions to determine, according to the value of the resource bundling granularity, the scheduling resource as a same resource block bundling group.

5. The terminal device according to claim 1 , wherein the first-type value comprises 2 and 4, and wherein the second-type value comprises a size of a consecutive scheduling bandwidth of the terminal device.

6. A network device, comprising:
a transceiver;
a processor connected to the transceiver; and
a non-transitory computer-readable storage medium storing a program to be executed by the processor, the program including instructions to:
determine, according to a value of a resource bundling granularity, at least one precoding resource block group in a scheduling resource corresponding to a terminal device, wherein the value of the resource bundling granularity is one of a first-type value and a second-type value, and wherein a precoding resource block group determining method corresponding to the first-type value is different from a precoding resource block group determining method corresponding to the second-type value; and
cause the transceiver to transmit data to the terminal device by using the at least one precoding resource block group.

7. The network device according to claim 6 , wherein the value of the resource bundling granularity is the first-type value, and
wherein the instructions to determine the at least one precoding resource block group include instructions to determine the at least one precoding resource block group in the scheduling resource according to the value of the resource bundling granularity and a location of the scheduling resource in a maximum available bandwidth of a system.

8. The network device according to claim 7 , wherein the instructions to determine the at least one precoding resource block group include instructions to determine a first precoding resource block group in the scheduling resource according to the following formula:
PRG first =P−N mod P
wherein PRG first is a number indicating that the first precoding resource block group comprises first PRG first resource blocks in the scheduling resource, wherein P indicates the value of the resource bundling granularity, wherein N indicates an index that is of a first physical resource block (PRB) in the scheduling resource and that is in the maximum available bandwidth of the system, and wherein N mod P indicates a remainder after N is divided by P;
determine a last precoding resource block group in the scheduling resource according to the following formula:
PRG last =( N+L )mod P

wherein PRG last is a number indicating that the last precoding resource block group comprises last PRG last resource blocks in the scheduling resource, wherein L indicates a quantity of PRBs in the scheduling resource, and wherein (N+L) mod P indicates a remainder after N+L is divided by P; and
determine that each other precoding resource block group in the scheduling resource comprises consecutive resource blocks, wherein a quantity of the consecutive resource blocks is the value of the resource bundling granularity in the scheduling resource.

9. The network device according to claim 6 , wherein the value of the resource bundling granularity is the second-type value, and
wherein the program further includes instructions to determine, according on the value of the resource bundling granularity, the scheduling resource as a same precoding resource block group.

10. The network device according to claim 6 , wherein the first-type value comprises 2 and 4, and wherein the second-type value comprises a size of consecutive scheduling bandwidth of the terminal device.

11. A communication method, comprising:
determining, by a terminal device, and according to a value of a resource bundling granularity, at least one resource block bundling group in a scheduling resource corresponding to the terminal device, wherein the value of the resource bundling granularity is one of a first-type value and a second-type value, and wherein a resource block bundling group determining method corresponding to the first-type value is different from a resource block bundling group determining method corresponding to the second-type value; and
receiving, by the terminal device by using the at least one resource block bundling group, data transmitted by a network device.

12. The method according to claim 11 , wherein the value of the resource bundling granularity is the first-type value, and
wherein the determining the at least one resource block bundling group comprises determining, by the terminal device, the at least one resource block bundling group in the scheduling resource accordin

Assignees

• Huawei Tech Co Ltd

Inventors

• Liu Yong
• Ren Xiang

Classifications

• H04L5/003

  Arrangements for allocating sub-channels of the transmission path · CPC title

• H04L5/0053

  Allocation of signalling, i.e. of overhead other than pilot signals · CPC title

• H04L25/0222

  Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency · CPC title

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04B7/0465 Primary

  taking power constraints at power amplifier or emission constraints, e.g. constant modulus, into account · CPC title