Resource allocation method, identification method, base station, mobile station, and program

Patent metadata

Field	Value
Publication number	US-10736086-B2
Application number	US-201816161624-A
Country	US
Kind code	B2
Filing date	Oct 16, 2018
Priority date	Jun 20, 2008
Publication date	Aug 4, 2020
Grant date	Aug 4, 2020

Abstract

Provided is a technique capable of reporting resource block allocation information with no waste when an allocated resource block is reported, because in the current LTE downlink, the waste of the amount of resource allocation information increases in some cases since a restriction is imposed such that 37-bit fixed scheduling information is transmitted. A resource block group consisting of at least one or more resource blocks continuous on the frequency axis is allocated to a terminal, and the number of controlling signals for reporting allocation information indicating the allocated resource blocks is determined.

First claim

What is claimed is:

1. A method comprising:
transmitting, to a user equipment (UE), a downlink control signal,
the downlink control signal including resource allocation type information and uplink resource allocation information,
the resource allocation type information indicating one of:
a first uplink resource allocation type, and
a second uplink resource allocation type,

the uplink resource allocation information indicating one of:
first uplink resource allocation information indicating a set of contiguously allocated resource blocks if the downlink control signal includes the resource allocation type information indicating the first uplink resource allocation type, and
second uplink resource allocation information indicating a plurality of sets of resource blocks if the downlink control signal includes the resource allocation type information indicating the second uplink resource allocation type;

receiving, from the UE, first uplink data based on the set of contiguously allocated resource blocks if the downlink control signal includes the resource allocation type information indicating the first uplink resource allocation type; and
receiving, from the UE, second uplink data based on the plurality of sets of resource blocks if the downlink control signal includes the resource allocation type information indicating the second uplink resource allocation type,
wherein the set of contiguously allocated resource blocks includes one or more consecutive resource blocks,
wherein an allocation unit of the set of contiguously allocated resource blocks is smaller than an allocation unit of each one of the plurality of sets of resource blocks, and
wherein a resource block, which is not included in the plurality of sets of resource blocks, is located between each two of the plurality of sets of resource blocks.

2. The method according to claim 1 ,
wherein a length of the contiguously allocated resource blocks is the one or more resource blocks.

3. The method according to claim 1 ,
wherein the allocation unit of each one of the plurality of sets of resource blocks is determined based on a system bandwidth.

4. The method according to claim 1 ,
wherein the allocation unit of the set of contiguously allocated resource blocks is one resource block, and
wherein the allocation unit of each one of the plurality of sets of resource blocks is a plurality of resource blocks.

5. The method according to claim 1 ,
wherein a number of resource blocks included in a first set of the plurality of sets of resource blocks is equal to a number of resource blocks included in a second set of the plurality of sets of resource blocks.

6. The method according to claim 1 ,
wherein a number of resource blocks included in a first set of the plurality of sets of resource blocks is different from a number of resource blocks included in a second set of the plurality of sets of resource blocks.

7. A method comprising:
receiving, from a base station, a downlink control signal,
the downlink control signal including resource allocation type information and uplink resource allocation information,
the resource allocation type information indicating one of:
a first uplink resource allocation type, and
a second uplink resource allocation type,

the uplink resource allocation information indicating one of:
first uplink resource allocation information indicating a set of contiguously allocated resource blocks if the downlink control signal includes the resource allocation type information indicating the first uplink resource allocation type, and
second uplink resource allocation information indicating the plurality of sets of resource blocks if the downlink control signal includes the resource allocation type information indicating the second uplink resource allocation type;

transmitting, to the base station, first uplink data based on the set of contiguously allocated resource blocks if the downlink control signal includes the resource allocation type information indicating the first uplink resource allocation type; and
transmitting, to the base station, second uplink data using the plurality of sets of resource blocks if the downlink control signal includes the resource allocation type information indicating the second uplink resource allocation type,
wherein the set of contiguously allocated resource blocks includes one or more consecutive resource blocks,
wherein an allocation unit of the set of contiguously allocated resource blocks is smaller than an allocation unit of each one of the plurality of sets of resource blocks, and
wherein a resource block, which is not included in the plurality of sets of resource blocks, is located between each two of the plurality of sets of resource blocks.

8. The method according to claim 7 ,
wherein a length of the contiguously allocated resource blocks is the one or more resource blocks.

9. The method according to claim 7 ,
wherein the allocation unit of each one of the plurality of sets of resource blocks is determined based on a system bandwidth.

10. The method according to claim 7 ,
wherein the allocation unit of the set of contiguously allocated resource blocks is one resource block, and
wherein the allocation unit of each one of the plurality of sets of resource blocks is a plurality of resource blocks.

11. The method according to claim 7 ,
wherein a number of resource blocks included in a first set of the plurality of sets of resource blocks is equal to a number of resource blocks included in a second set of the plurality of sets of resource blocks.

12. The method according to claim 7 ,
wherein a number of resource blocks included in a first set of the plurality of sets of resource blocks is different from a number of resource blocks included in a second set of the plurality of sets of resource blocks.

13. A base station comprising:
a transmitter configured to transmit a downlink control signal to a user equipment (UE),
the downlink control signal including resource allocation type information and uplink resource allocation information,
the resource allocation type information indicating one of:
a first uplink resource allocation type, and
a second uplink resource allocation type,

the uplink resource allocation information indicating one of:
first uplink resource allocation information indicating a set of contiguously allocated resource blocks if the downlink control signal includes the resource allocation type information indicating the first uplink resource allocation type, and
second uplink resource allocation information indicating the plurality of sets of resource blocks if the downlink control signal includes the resource allocation type information indicating the second uplink resource allocation type;

a receiver configured to receive, from the UE, first uplink data based on the set of contiguously allocated resource blocks if the downlink control signal includes the resource allocation type information indicating the first uplink resource allocation type,
wherein the receiver is configured to receive, from the UE, second uplink data based on the plurality of sets of resource blocks if the downlink control signal includes the resource allocation type information indicating the second uplink resource allocation type,
wherein the set of contiguously allocated resource blocks includes one or more consecutive resource blocks,
wherein an allocation unit of the set of contiguously allocated resource blocks is smaller than an allocation unit of each one of the plurality of sets of resource blocks, and
wherein a resource block, which is not included in the plurality of sets of re

Assignees

• Koyanagi Kenji
• Inoue Takamichi
• Liu Le
• Kakura Yoshikazu
• Nec Corp

Inventors

• Koyanagi Kenji
• Inoue Takamichi
• Liu Le
• Kakura Yoshikazu

Classifications

• H04W72/23

  in the downlink direction of a wireless link, i.e. towards a terminal · CPC title

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04J11/00

  Orthogonal multiplex systems, {e.g. using WALSH codes}(H04J13/00 takes precedence) · CPC title

• H04W72/0453 Primary

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04L5/0039 Primary

  Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another · CPC title